Name: Gandy Orbit-Air (30' boom)

2011-03-30 Fertilizer Application Fertilized LTER Main Site Treatment T2, all replications (reps 1, 2, 3, 4, 5, and 6) with 0-0-60 Potash at 70 lbs/A. The 70 lbs/A provided 42 lbs/A K2O to the plots. No fertilizer was applied to the no-fertilizer, no-herbicide microplots located in the northwest corner of each plot: 5 meters (16.6 feet) from the north and 40 meters (133.3 feet) from the west. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.5 mph and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.

2009-05-18 Fertilizer Application Fertilized LTER main site, Cellulosic Ethanol (biofuels) Study (CES) treatments C1, C2 & C3, replications 1-4. Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha). The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom.

2011-03-30 Fertilizer Application Fertilized LTER Main Site Treatment T6, all replications (reps 6, 5, 3, 2, 4, 1) with 0-0-60 Potash at 230 lbs/A. The 230 lbs/A provided 138 lbs/A K2O to the plots. This is designed to be the first half of a two part application to reach 460 lbs/A of potash. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.3 mph and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.

2009-06-16 Fertilizer Application Applied urea to Switchgrass Fertility Gradient (N-rate) Study in following amounts: F1 0 lbs N/A 0 passes in field; F2 25 lbs N/A 1 pass in field; F3 50 lbs N/A 1 pass in field; F4 75 lbs N/A 2 passes in field; F5 100 lbs N/A 2 passes in field; F6 125 lbs N/A 3 passes in field; F7 150 lbs N/A 3 passes in field; F8 175 lbs N/A 4 passes in field. Fertilizer was applied with a JD7420(a) tractor traveling 4.8 mph and a Gandy Orbit-Air 62DS16C-S spreader with a 30' boom reduced to 15' application width.

2009-05-15 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to treatment 1, replication 1-4, 6 only. The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom. For T1 and T2 plots, the fertilizer microplot in the northwest corner (5M deep north to south x 40M long east to west) was not fertilized.

2009-05-15 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to treatment T2 (replications 1-6). The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom. For T2 plots, the fertilizer microplot in the northwest corner (5M deep north to south x 40M long east to west) was not fertilized.

2009-05-15 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to treatment T3 (replications 1-6). The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom.

2009-05-18 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to LTER main site, Nitrogen rate study (fertility gradient), and to Lysimeter field. The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom.

2009-05-18 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to LTER main site, Nitrogen rate study (fertility gradient), and to Lysimeter field. The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom.

2011-04-14 Fertilizer Application Fertilized the GLBRC Main Site Treatment G4, Canola plots, all replications (replicates 3, 5, 4, 1, 2) with phosphorus (0-46-0) at 120 lbs/A. The 120 lbs/A phosphorus provided 55.2 lbs/A P2O5 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.6 mph, 1400 rpm travelling in gear B3; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. Feed rate was approximately 36 lbs/minute (2.25 lbs/min per tube). For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i. Weather conditions: cloudy, occasional light sprinkles, temperatures 37-44 degrees F, winds 7-10 mph from west.

2011-04-14 Fertilizer Application Fertilized the LTER Main Site Treatment T6, Alfalfa plots, all replications (replicates 1, 2, 3, 4, 5, 6) with phosphorus (0-46-0) at 200 lbs/A. The 200 lbs/A phosphorus provided 92 lbs/A P2O5 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.6 mph, 1400 rpm travelling in gear B3; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. Feed rate was approximately 36 lbs/minute (2.25 lbs/min per tube). For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i. Weather conditions at start: cloudy, occasional light sprinkles, temperatures 37-44 degrees F, winds 7-10 mph from west.

2011-04-14 Fertilizer Application Fertilized the LTER Main Site Lysimeter Field, with phosphorus (0-46-0) at 120 lbs/A. The 120 lbs/A phosphorus provided 55.2 lbs/A P2O5 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.6 mph, 1400 rpm travelling in gear B3; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. Feed rate was approximately 36 lbs/minute (2.25 lbs/min per tube). For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i. Weather conditions: cloudy, occasional light sprinkles, temperatures 37-44 degrees F, winds 7-10 mph from west.

2008-05-01 Fertilizer Application Applied 0-0-62, potash fertilizer, at 74 lbs/A (83.08 kg/ha) to treatment 1, replications 6, 3, 2, 4, 5, and 1, and treatment 2, replications 2, 3, 5, 4, 1, and 6. The 74 lbs/A provided 46 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(b) tractor traveling at 5 mph and Gandy Orbit-Air with a 30 ft boom. Treatment 3 was applied on May 3, 2008. Not sure the rate of fertilizer for T3 plots. I believe it was at a lower rate.

2009-05-14 Fertilizer Application Applied 0-0-60, potash fertilizer, at 120 lbs/A (83.08 kg/ha) to treatment 1, replication 5 only. The 120 lbs/A provided 72 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air 62DS16C-S with a 30 ft boom. For T1 and T2 plots, the fertilizer microplot in the northwest corner (5M deep north to south x 40M long east to west) was not fertilized.

2009-06-15 Fertilizer Application Applied 130 lbs/A UREA to GLBRC Main site treatment G3. 130 lbs/A urea is 60 lbs N/A. Applied with the JD7420(a) tractor and Gandy Orbit-Air spreader traveling at 4 mph. For G3, no fertilizer microplots were left for R1 and R2, R3 microplot was located on the east side of the plot instead of the west side. G3R5 and G3R4 have fertilizer microplots on west side as per protocol.

2009-06-15 Fertilizer Application Applied 109 lbs /A UREA to GLBRC Main site treatment G9. 109 lbs /A urea is 50 lbs N/A. Applied with the JD7420(a) tractor and Gandy Orbit-Air spreader traveling at 4.8 mph.

2011-04-01 Fertilizer Application Fertilized GLBRC Main Site Treatment G1, replications 3, 2, 5, and 1 only (NOT replication 4) with 0-0-60 Potash at 335 lbs/A (376 kg/Ha). The 335 lbs/A provided 201 lbs/A (226 kg/Ha) K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2-2.2 mph (B1 1500 rpm) and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11-12 p.s.i.; boom height approximately 36”. Weather conditions: sunny, 32-42°F, negligible wind.

2011-04-01 Fertilizer Application Fertilized GLBRC Main Site Treatment G2, replications 3, 2, 4, and 1 only (NOT replication 5) with 0-0-60 Potash at 335 lbs/A (376 kg/Ha). The 335 lbs/A provided 201 lbs/A (226 kg/Ha) K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2-2.2 mph (B1 1500 rpm) and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11-12 p.s.i.; boom height approximately 36”. Weather conditions: sunny, 32-42°F, negligible wind.

2011-04-01 Fertilizer Application Fertilized GLBRC Main Site Treatment G3, replications 2, 1, 4, and 3 only (NOT replication 5) with 0-0-60 Potash at 135 lbs/A (152 kg/Ha). The 135 lbs/A provided 81 lbs/A (91 kg/Ha) K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.2 mph (B4 1200 rpm) and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11-12 p.s.i.; boom height approximately 36”. Weather conditions: sunny, 32-42°F, negligible wind.

2011-04-01 Fertilizer Application Fertilized GLBRC Main Site Treatment G4, replications 1, 2, 4, 5 and 3 with 0-0-60 Potash at 85 lbs/A (95 kg/Ha). The 85 lbs/A provided 51 lbs/A (57 kg/Ha) K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.2 mph (B4 1200 rpm) and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11-12 p.s.i.; boom height approximately 36”. Weather conditions: sunny, 32-42°F, negligible wind.

2011-03-30 Fertilizer Application Fertilized LTER Main Site Treatment T1, all replications (reps 1, 2, 3, 4, 5, and 6) with 0-0-60 Potash at 65 lbs/A. The 65 lbs/A provided 39 lbs/A K2O to the plots. No fertilizer was applied to the no-fertilizer, no-herbicide microplots located in the northwest corner of each plot: 5 meters (16.6 feet) from the north and 40 meters (133.3 feet) from the west. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.5 mph and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.

2011-03-30 Fertilizer Application Fertilized LTER Main Site Treatment T3, all replications (reps 1, 2, 3, 4, 5, and 6) with 0-0-60 Potash at 65 lbs/A. The 65 lbs/A provided 39 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.5 mph and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure at 12 p.s.i.

2011-04-05 Fertilizer Application Fertilized LTER Main Site Treatment T6, all replications (reps 5, 6, 3, 4, 1 and 2) with 0-0-60 Potash at 230 lbs/A and boron (as sodium borate, Na2B4O7·5H2O with 14.3% boron) at 3 lbs/A. The 230 lbs/A potash provided 138 lbs/A K2O to the plots. The 3 lbs/A borate provided 0.43 lbs/A B. This was the second half of a two part application to reach 460 lbs/A of potash. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.3 mph, 1400 rpm travelling in gear B2; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. Feed rate was approximately 36 lbs/minute (2.25 lbs/min per tube). For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i. Weather conditions: partly sunny, temperatures 37-44 degrees F, winds 7-10 mph from west.

2011-07-14 Fertilizer Application Fertilized the Interaction Plots, field B-0 at the Farming System Center. Fertilized with ammonium nitrate (CAN27) at 140 lbs N/A. The total product was applied at 481.5 lbs/A. The fertilizer was applied with the JD 7420(b) tractor traveling at approximately 1.2 mph and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 58 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 208; air pressure was 15 p.s.i.

2012-04-13 Fertilizer Application Fertilized LTER Main Site treatment T2, all replications (reps. 1, 4, 3, 6, 2 and 5) with potash (0-0-60) at 92 lbs/A. The 92 lbs/A potash provided 55.2 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.8 mph, 1650 rpm travelling in gear C2; Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 monitor which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 61 degrees F, winds 4 mph from south (10 minute average of 5 mph), 32% relative humidity, application time 2:30-4:30 p.m.

2012-04-17 Fertilizer Application Fertilized LTER Main Site treatment T3, all replications (reps. 6, 1, 3, 2, 4, and 5) with potash (0-0-60) at 92 lbs/A. The 92 lbs/A potash provided 55.2 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.8 mph, 1650 rpm travelling in gear C2; Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: mostly sunny, temperatures 55 degrees F, winds 4 mph from northwest (10 minute average of 5 mph), 46% relative humidity, application time 2:00-4:30 p.m.

2012-04-17 Fertilizer Application Fertilized LTER Main Site treatment T1, all replications (reps. 1, 5, 4, 3, 2, and 6) with potash (0-0-60) at 92 lbs/A. The 92 lbs/A potash provided 55.2 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.8 mph, 1650 rpm travelling in gear C2 and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: mostly sunny, temperatures 44-55 degrees F, winds 3-4 mph from north to northwest (10 minute average of 4 mph), 65% relative humidity at start to 46% at end, application time 9:30 a.m. - 1:30 p.m.

2012-04-18 Fertilizer Application Fertilized GLBRC Main Site treatment G4, all replications (reps. 5, 4, 3, 2, and 1) with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.7 mph, 1600 rpm travelling in gear C2 and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 52 degrees F, winds 6 mph from southeast (10 minute average of 8 mph), 60% relative humidity, application time 11:00-11:59 a.m.

2012-04-18 Fertilizer Application Fertilized GLBRC Main Site treatment G1, all replications (reps. 5, 4, 3, 2, and 1) with potash (0-0-60). The potash was applied at different rates in different plots according to soil sample analysis. Main plot areas were fertilized according to the following schedule (weights in pounds/A): rep 1 - 250; rep 2 - 250; rep 3 - 275; rep 4 - 250; and rep 5 - 250. Microplot areas were fertilized according to the following schedule (weights in pounds/A): rep 1 - 250; rep 2 - 275; rep 3 - 275; rep 4 - 50; and rep 5 - 250. When potash was applied at 250 lbs/A it provided 150 lbs/A K2O to the plots [275 lbs/A potash equated to 165 lbs/A K20; 50 lbs/A potash equated to 30 lbs/A K2O]. The fertilizer was applied with the JD 7420(a) tractor traveling at variable speeds so that no more than 2.2 lbs/minute/nozzle was applied. The Gandy Orbit-Air fertilizer applicator was controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 51 degrees F, winds 7 mph from southeast (10 minute average of 6 mph), 62% relative humidity, application time 9:00-10:30 a.m.

2012-04-18 Fertilizer Application Fertilized GLBRC Main Site treatment G3, all replications (reps. 5, 3, 2, 4, and 1) with potash (0-0-60). Plots were fertilized at different rates based on soil testing from 2011. The plots (both main plot area and microplot area) were fertilized according to the following schedule (weights in lbs/A): rep 1 - 275; rep 2 - 300; and reps 3, 4, and 5 - 250. The following amounts of K2O were supplied to the the plots (weights in lbs/A): rep 1 - 165; rep 2 - 180; reps 3, 4, and 5 - 150. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.5 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 59 degrees F, winds 7 mph from south southwest (10 minute average of 9 mph), 48% relative humidity, application time 1:30-3:00 p.m.

2012-04-18 Fertilizer Application Fertilized GLBRC Main Site treatment G2, all replications (reps. 4, 1, 5, 2, and 3) with potash (0-0-60). Plots and microplots were fertilized at different rates based on soil testing from 2011. All the main plots were fertilized at 250 lbs/A potash which provided 150 lbs/A K2O. The following amounts of K2O were supplied to the microplots (weights in lbs/A): rep 1, 2, 4, and 5 - 250; rep 3 only - 50 (50 lbs/A potash supplied 30 lbs/A of K2O). The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.5 mph and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 59 degrees F, winds 7 mph from south southwest (10 minute average of 9 mph), 48% relative humidity, application time 3:00 - 4:30 p.m.

2012-04-19 Fertilizer Application Fertilized GLBRC Main Site trap crop area with potash (0-0-60) at 200 lbs/A. The potash provided 120 lbs/A of K2O to the planting areas. All trap areas (east, west, north and south) were fertilized at the same rate in a single pass. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 2.5 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: partly cloudy, temperatures 57 degrees F, winds calm from southwest, 70% relative humidity, application time 8:30 - 11:00 a.m.

2012-04-19 Fertilizer Application Fertilized LTER Main Site treatment T1, all replications (reps. 1, 5, 4, 3, 2 and 6) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The north 5 meters of the microplots in the northwest corner of the plots were not fertilized. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 5.6 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: cloudy to partly sunny, temperatures 61 degrees F, winds calm, 71% relative humidity, application time 2:30-4:00 p.m.

2012-04-23 Fertilizer Application Fertilized LTER Main Site treatment T2, all replications (reps. 6, 4, 3, 2, 5, and 1) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The north 5 meters of the microplots in the northwest corner of the plots were not fertilized. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.5 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions (start and finish): sunny, temperatures 38-51 degrees F, winds 6-13 mph from northwest to north, 56-27% relative humidity, application time 8 - 11:30 a.m.

2012-04-23 Fertilizer Application Fertilized LTER Main Site treatment T3, all replications (reps. 1, 2, 3, 4, 5, and 6) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The microplot area in the northwest corner of the plots was not fertilized (90' wide E-W and 50' deep N-S). The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.5 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions (start and finish): sunny, temperatures 53-55 degrees F, winds 13-12 mph from north to northwest, 27-26% relative humidity, application time 1:00 - 3:30 p.m.

2012-04-24 Fertilizer Application Fertilized GLBRC Main Site treatment G4, all replications (reps. 3, 5, 4, 2, and 1) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.8 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above the ground level. Weather conditions: sunny, temperatures 44-51 degrees F, winds 8 mph from northwest to north, 53% relative humidity, application time 9:30 - 10:30 a.m.

2012-04-24 Fertilizer Application Fertilized GLBRC trap/bait crop area with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The east, north, and west trap areas were completely fertilized; however, the south area only received one pass which was the northern-most 30'; the rest of the 60' to the south were not fertilized yet because the fertilizer ran out. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.8 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 52-56 degrees F, winds 12-20 mph (10 minute average of 15 mph) from northwest to north, 33% relative humidity, application time, after lunch.

2012-04-24 Fertilizer Application Fertilized LTER Main Site treatment T8nt, all replications (reps. 2, 4, 3, and 1) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.8 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; 30' Boom length 22.5 ft, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 56 degrees F, winds 12-20 mph (10 minute average of 15 mph) from northwest to north, 28% relative humidity, application time 1:00 a.m. - 2:00 p.m.

2012-05-19 Fertilizer Application Fertilized the LTER Main Site treatment T6 alfalfa, all replications (reps 6, 5, 4, 3, 2 and 1) with potash and boron. A total of 540 pounds/A of product was applied: 517 lbs/A of 0-0-62 potash which supplied 321 lbs/A of K2O and 23 lbs/A of 14% boron which supplied 3.2 lbs/A B. Applied in a single application of using the John Deere 7420a tractor traveling 1.3 mph (range A2, 1350 rpm) and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 13-14 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 72 degrees F, winds 5 mph from south, application time 11:30 a.m. - 6:30 p.m.

2012-05-21 Fertilizer Application Fertilized the LTER Main Site treatment N-rate Study (Nitrogen Fertility Gradient/Irrigation Experiment), all treatments and replicates with potash. A total of 210 pounds/A of 0-0-62 potash was applied which supplied 130 lbs/A of K2O. Applied in a single application of using the John Deere 7420a tractor traveling 4.3 mph (range B3, 1350 rpm) and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 13-14 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Weather conditions: cloudy, temperatures 60 degrees F.

2012-04-24 Fertilizer Application Fertilized LTER Main Site treatment T3, microplot area only, all replications (reps. 6, 5, 4, 3, 2, and 1) with monoammonium phosphate (MAP: 11-52-0) at 60 lbs/A product. The 60 lbs/A of MAP provided 6.6 lbs/A of nitrogen and 31.2 lbs/A of PO4. Only the ”+Fertilizer” plots were fertilized (BAU+FERT, NWC+FERT, and WF+F); the ”-Fertilizer” plots were not fertilized. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 3.8 mph, and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 12-14 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 52 degrees F, winds 13-26 mph (10 minute average of 13 mph) from northwest to north, 33% relative humidity, application time 11:00 a.m. - 12:30 p.m.

2011-05-03 Fertilizer Application Fertilized LTER Main Site Fertilized Gradient Study and the LTER Main Site Irrigated Fertility Gradient Study, all treatments and all replications (blocks 8, 6, 7, 5, 4, 2, 3, 1) with 0-0-60 Potash at 70 lbs/A. The 70 lbs/A provided 42 lbs/A K2O to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at approximately 4.0 mph (gear B3 at 1600 rpms) and Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i.

2012-06-14 Fertilizer Application Fertilized LTER N-rate study (Irrigated and Non-irrigated fertility gradient study). Fertilizer applications were with 34-0-0 ammonium nitrate (granular) which supplied 34% nitrogen [purchased from Green Valley Agricultural Inc, Bangor, MI). A single pass of a Orbit-Air Gandy fertilizer applicator was used to broadcast and apply the correct amount of fertilizer. The amounts of nitrogen applied were as follows: F1 (101, 203, 209, 404, 501, 603, 709, 804) 0 lbs N/A (0 lbs product/A); F2 (102, 202, 304, 406, 502, 602, 704, 806) 15 lbs N/A (44.1 lbs product/A); F3 (103, 205, 302, 407, 503, 605, 702, 807) 30 lbs N/A (88.2 lbs product/A); F4 (104, 208, 305, 403, 504, 608, 705, 803) 45 lbs N/A (132.4 lbs product/A); F5 (105, 204, 306, 401, 505, 604, 706, 801) 60 lbs N/A (176.5 lbs product/A); F6 (106, 209, 308, 402, 506, 609, 708, 802) 75 lbs N/A (220.6 lbs product/A); F7 (107, 201, 307, 408, 507, 601, 707, 808) 90 lbs N/A (264.7 lbs product/A); F8 (108, 207, 303, 405, 508, 607, 703, 805) 110 lbs N/A (323.5 lbs product/A); F9 (109, 206, 301, 409, 509, 606, 701, 809) 130 lbs N/A (382.4 lbs product/A). Guard plots were not fertilized. Time of application was between 10:00 and 12:15 p.m. Temperature at start was 72F, 47% relative humidity, skies were clear. Wind was calm between 1-3 mph at start from ESE. Equipment used: John Deere 7420b tractor pulling a Gandy Orbit Air applicator. The applicator was controlled by a Raven 660 automatic carrier control unit. Deflector were spaced 22.5 inches apart along the 15 foot boom length extending from the center of the drive-line off to the right side of the boom. For the Gandy/Raven set-up, the following were used: Density 60 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22.5”; meter cal number 219; air pressure was 12 p.s.i. The Raven monitor automatically adjusted the application to maintain it at the set point regardless of ground speed; because of this, ground speed was adjusted to maintain a desired application rate of 2-2.5 lbs/minute/nozzle resulting in some treatments being fertilized at 1.2 up to 5.5 mph.

2008-05-12 Fertilizer Application Applied 0-0-60, potash fertilizer, at ? lbs/A (? kg/ha) to the T8nt plots, N-rate studies (both irrigated and non-irrigated) The ? lbs/A provided ? lbs/A of K20 to the plots. The fertilizer was applied with the JD ? tractor traveling at ? mph and Gandy Orbit-Air with a 30 ft boom.

2008-05-14 Fertilizer Application Applied 0-0-60, potash fertilizer, at ? lbs/A (? kg/ha) to the LTER main site T4 micro-plots. The ? lbs/A provided ? lbs/A of K20 to the plots. The fertilizer was applied with the JD ? tractor traveling at ? mph and Gandy Orbit-Air with a 30 ft boom. Assume that we applied at the same rate as T1 plots, 74 lbs/A? Jim Stoneburner fertilized the LTER main site treatment T4 micro-plots with 0-0-62, potash fertilizer, at 74 lbs/A (83.08 kg/ha). The 74 lbs/A provided 46 lbs/A of K20 to the plots. The fertilizer was applied with the JD 7420(a) tractor traveling at 5 mph and Gandy Orbit-Air with a 30 ft boom

2013-07-13 Fertilizer Application Fertilized the LTER Main Site treatment T6 alfalfa, all replications (reps 1, 2, 3, 4, 5, and 6) with potash. A total of 270 pounds /A of product (0-0-60) which supplied 162 lbs/A of K2O. Applied in a single application of using the John Deere 7420b tractor traveling 2.2 mph and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 204; air pressure was 11 p.s.i.; Boom length 30 ft, nozzles 16-24 inches above the ground level. Replications 1 and 2 were done on Friday 7-16, reps 3,4,5, and 6 were done on Saturday. Rep 6 last 45 feet to the East had to be finished on Monday. LTER Main Site treatment T6 only got partial application of potash and that was 270 lbs/A potash (0-0-60) on July 13, 2013. Due to time restraints we were unable to get the remaining 230 lbs/A of potash on the alfalfa. Protocol was to apply 288 lbs/A K2O, however the 270 lbs/A of potash (0-0-60) put on in July supplied 162 lbs/A K2O out of the 300 lbs/A K2O that the protocol called for. Also (NO boron was added in 2013). Protocol had Boron being applied at 2 lbs/A.

2007-03-30 Fertilizer Application Applied 19-19-19 to T1, T2, T8nt plots, and lysimeter field. March 30, 2007 applied the 19-19-19 to T1 reps: 6, 3, 2, 1, 5, and 4. T2 reps: 6, 1, 5, and 4. March 31, 2007 applied the 19-19-19 to T2 reps: 2 and 3; T8nt plots; N-rate studies (both irrigated and non-irrigated); and Lysimeter field. I used a total of 115 bags (50 lbs/bag). I used 90 bags on T1 and T2 plots. Calibrated at 150 lbs/A. 150 lbs/A of 19-19-19 is 28.5 lbs N-P-K/A.

2007-04-02 Fertilizer Application Applied 19-19-19 T3 and T4 micro-plots, and lysimeter field. I used a total of 15 bags (50 lbs/bag). Calibrated at 150 lbs/A. 150 lbs/A of 19-19-19 is 28.5 lbs N-P-K/A.

2014-04-18 Fertilizer Application Fertilized LTER Main Site treatment T1, and T2, all replications with potash (0-0-60) at 70 lbs/A. The 70 lbs/A potash provided 42 lbs/A K2O to the plots. Average speed while spreading was 4.5 mph (C2, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 10 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather condtions at the start (8:30 a.m.) were sunny, 44 degrees F, 92% humidity, with calm N wind. At the end of application (3:30 p.m.) it was mostly sunny, 60 degrees F, 45% humidity, with N, NW winds of 5-7 mph.

2014-05-04 Fertilizer Application Fertilized LTER Main Site fertility gradient study both irrigated and non-irrigated with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading was 2.7 mph. (B3, 1300 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 10 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at the start 8:15 a.m. were 48 degrees F, 62% humidity, with 10 mph. WWNW winds. Conditions at the end of application (12:30) p.m. were 52 degrees F, 42% humidity, with 10 mph. NW winds.

2014-05-04 Fertilizer Application Fertilized LTER Main Site Lysimeter field with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading was 2.7 mph. (B3, 1300 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 10 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at the start 8:15 a.m. were 48 degrees F, 62% humidity, with 10 mph. WWNW winds. Conditions at the end of application (12:30) p.m. were 52 degrees F, 42% humidity, with 10 mph. NW winds.

2014-04-23 Fertilizer Application Fertilized GLBRC Main Site Treatments G4, all replications (1-5) with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading 150 lbs/A potash was 2.5 mph (B2, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (9:45 a.m.) were sunny, 40 degrees F, 62 % humidity, with 10 mph. N winds. Conditions at the end (5:50 p.m.) were partly sunny 56 degrees F, 27 % humidity, with Calm. N winds.

2014-04-24 Fertilizer Application Fertilized LTER T8NT plots (4 plots) with potash (0-0-60) at 70 lbs/A. The 70 lbs/A potash provided 42 lbs/A K2O to the plots. Average speed while spreading 70 lbs/A potash was 2.7 mph (B3, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (10:00 a.m.) were overcast, 48 degrees F, 46 % humidity, with 8 mph. SE winds. Conditions at the end (4:00 p.m.) were overcast, 57 degrees F, 27 % humidity, with 11 mph. ESE winds.

2014-04-24 Fertilizer Application Fertilized 8 Interaction plots (16, 15, 14, 10, 12, 7, 1, 5) with potash (0-0-60) at 70 lbs/A. The 70 lbs/A potash provided 42 lbs/A K2O to the plots. Average speed while spreading 70 lbs/A potash was 2.7 mph (B3, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (10:00 a.m.) were overcast, 48 degrees F, 46 % humidity, with 8 mph. SE winds. Conditions at the end (4:00 p.m.) were overcast, 57 degrees F, 27 % humidity, with 11 mph. ESE winds.

2014-04-25 Fertilizer Application Fertilized GLBRC Main Site Bait Crop with potash at 150 lbs/A. The 150 lbs/A of potash provided 90 lbs/A K2O to the plots. The 5 plots in rep 6 were fertilized, behind the brown house, then the perimeter around the GLBRC. Average speed while spreading 150 lbs/A potash was 2.5 mph (B2, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (10:00 a.m.) were overcast, 48 degrees F, 46 % humidity, with 8 mph. SE winds. Conditions at the end (4:00 p.m.) were overcast, 57 degrees F, 27 % humidity, with 11 mph. ESE winds.

2014-04-23 Fertilizer Application Fertilized GLBRC Main Site Treatments G1-G3, all replications (1-5) with potash (0-0-60) at 250 lbs/A. The 250 lbs/A potash provided 150 lbs/A K2O to the plots. Average speed while spreading 250 lbs/A potash was 1.4 mph (A3, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (9:45 a.m.) were sunny, 40 degrees F, 62 % humidity, with 10 mph. N winds. Conditions at the end (5:50 p.m.) were partly sunny 56 degrees F, 27 % humidity, with Calm. N winds.

2014-04-21 Fertilizer Application Fertilized LTER Main Site treatment T6, all replications (1, 2, 3, 4, 5, 6) with potash (0-0-60) at 500 lbs/A. The 500 lbs/A potash provided 300 lbs/A K2O to the plots. The 500 lbs/A of potash was applied in two separate applications where 250 lbs/A of potash was applied at each application. First application of 250 lbs/A of potash was applied to reps 1-4 on April 21, 2014 and reps 5 and 6 were fertilized on April 22, 2014. Second application of 250 lbs/A of potash was applied to reps 1-4 on April 22, 2014 and reps 5 and 6 were fertilized on April 23, 2014. Average speed while spreading was 1.4 mph (A3, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 11.5 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (7:40 a.m.) partly sunny, 44 degrees F, 79 % humidity, with 9 mph. NNW winds. Conditions at the end (3:00 p.m.) were partly sunny 50 degrees F, 58 % humidity, with 15 mph. NW winds.

2014-04-21 Fertilizer Application Fertilized LTER Main Site treatment T3, all replications (1, 3, 2, 4, 5, 6) with potash (0-0-60) at 70 lbs/A. The 70 lbs/A potash provided 42 lbs/A K2O to the plots. (MICRO - PLOTS were not fertilized at this time.) Average speed while spreading was 4.5 mph (C2, 1350 rpm) with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 10 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start (7:40 a.m.) overcast, 54 degrees F, 50 % humidity, with calm SW winds. Conditions at the end (3:15 p.m.) were overcast, 75 degrees F, 30 % humidity, with calm SW winds.

2014-08-15 Fertilizer Application Fertilized the LTER Main Site Treatment T6, Alfalfa plots, all replications (replicates 5, 3, 4, 2, 1, 6) with phosphorus (0-46-0) at 220 lbs/A. The 220 lbs/A phosphorus provided 101 lbs/A P2O5 to the plots. The fertilizer was applied with the JD 7420(b) tractor traveling at approximately 1.7 mph; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 199; air pressure was 11 p.s.i.

2014-08-27 Fertilizer Application Fertilized the LTER Main Site treatment T6 alfalfa, all replications (reps 5, 3, 4, 2, 1, 6) with potash and boron. A total of 527 pounds of product was applied: 512 lbs/A of 0-0-60 potash which supplied 307 lbs/A of K2O and 15 lbs/A of 14% boron which supplied 2.1 lbs/A of B. The total amount of product was applied in two applications each being 263.5 lbs/A. Applications were made using a John Deere 7420 B traveling at 1.6 mph (A4 1300 rpm) and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22"; meter cal number 206; air pressure 13 p.s.i. Boom length 30ft, nozzles 16-24 inches above the ground level. The first application across all replications was on Monday August 25, 2014 as well as the second application for reps (5, 3,). The second application for reps (4, 2, 1, 6) was completed on Tuesday August 26, 2014. Weather conditions on 8/25/14 at 8:10 a.m. 69 degrees F, 95 % humidity, winds calm out of the south east (end application 3:15 p.m.) Weather conditions on 8/26/14 at 9:30 a.m. were 74 degrees F, 86% humidity, winds 5 mph avg. out of the south. End application 2:20 p.m. 77 degrees F, 73% humidity, 8 mph avg out of the Northwest.

2015-04-06 Fertilizer Application Fertilized LTER Main Site treatment T1, T2 and T3 all replications with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. T1's and T2's were fertilized 4-6-15 and T3 was fertilized on 4-7-15. Average speed while spreading was 3-3.5 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2015-04-07 Fertilizer Application Fertilized LTER T8nt all replications with potash (0-0-60) at 250 lbs/A. The 250 lbs/A potash provided 150 lbs/A K2O to the plots. Average speed while spreading was 2 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2015-04-07 Fertilizer Application Fertilized LTER CE Study treatments C1, C2, and C3 all replications with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading was 3 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2015-04-24 Fertilizer Application April 24, 2015 - Fertilized the ECB Study with potash (0-0-60) and boron (10%). A total of 100 lbs/A was applied: 88.23 lbs/A potash which provided 53 lbs/A K2O; and 11.76 lbs/A of 10% boron which supplied 1.176 lbs/A of Boron to the plots. Average speed while spreading was 3.1 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 8:00 a.m. Sunny 31 degrees F. 76% humidity, calm North East wind. Weather Conditions at 3:00 p.m. Sunny, 55 degrees F. 28% humidity, calm South East Wind.

2015-04-14 Fertilizer Application Fertilized LTER Main SIte treatment's T1, T2 and T3 all replications with super phosphate (0-46-0) at 100 lbs/A. The 100 lbs/A of super phosphate provided 46 lbs p2O5/A to the plots. Average speed was 4-4.5 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 285; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level.

2015-04-14 Fertilizer Application Fertilized LTER CE study treatments CES1, CES2, CES 3 all replications with super phosphate (0-46-0) at 100 lbs/A. The 100 lbs/A of super phosphate provided 46 lbs p2O5/A to the plots. Average speed was 4-4.5 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 285; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level.

2015-04-14 Fertilizer Application Fertilized LTER T8NT's all replications with super phosphate (0-46-0) at 100 lbs/A. The 100 lbs/A of super phosphate provided 46 lbs p2O5/A to the plots. Average speed was 4-4.5 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 285; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level.

2015-04-15 Fertilizer Application Fertilized GLBRC Main Site treamtents G1 reps (2, 3, 4), G2 reps (1, 2, 3, 5), G4 (all replications) with super phosphate (0-46-0) at 150 lbs/A. The 150 lbs/A of super phosphate provided 69 lbs p2O5/A to the plots. Average speed was 3 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 285; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level.

2015-04-15 Fertilizer Application Fertilized GLBRC Main Site treamtent G3 all replications with super phosphate (0-46-0) at 100 lbs/A. The 100 lbs/A of super phosphate provided 46 lbs p2O5/A to the plots. Average speed was 3 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 285; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level.

2015-04-15 Fertilizer Application Fertilized the LTER Main Site Treatment T6, Alfalfa plots, all replications (replicates 5, 4, 3, 2, 1, 6) with phosphorus (0-46-0) at 200 lbs/A. The 200 lbs/A phosphorus provided 92 lbs/A P2O5 to the plots. The fertilizer was applied with the JD 7420(b) tractor traveling at approximately 2.4 mph; Gandy Orbit-Air fertilizer applicator with a 30 ft boom, connected to a Raven 6000 monitor which controlled and monitored the application. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4” diameter (yellow); deflector spacing 22”; meter cal number 184; air pressure was 14 p.s.i.

2015-04-16 Fertilizer Application Fertilized GLBRC bait crop, brown house, and 5 plots in rep 6 with super phosphate (0-46-0) at 200 lbs/A. The 200 lbs/A of super phosphate provided 92 lbs p2O5/A to the plots. Average speed was 2.4 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 184; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level. Weather conditions at 10:45 a.m. cloudy 52 degrees F. 56% humidity, 6 mph east wind. Conditions at 6:00 p.m. partly cloudy, 60 degrees F. 65% humidity and 1 mph south west wind.

2015-04-16 Fertilizer Application Fertilized the LTER Lysimeter field with super phosphate (0-46-0) at 200 lbs/A. The 200 lbs/A of super phosphate provided 92 lbs p2O5/A to the plots. Average speed was 2.4 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 184; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level. Weather conditions at 10:45 a.m. cloudy 52 degrees F. 56% humidity, 6 mph east wind. Conditions at 6:00 p.m. partly cloudy, 60 degrees F. 65% humidity and 1 mph south west wind.

2015-04-16 Fertilizer Application Fertilized the LTER N-Rate Fertility Study with super phosphate (0-46-0) at 200 lbs/A. The 200 lbs/A of super phosphate provided 92 lbs p2O5/A to the plots. Average speed was 2.4 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 184; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level. Weather conditions at 10:45 a.m. cloudy 52 degrees F. 56% humidity, 6 mph east wind. Conditions at 6:00 p.m. partly cloudy, 60 degrees F. 65% humidity and 1 mph south west wind.

2015-04-17 Fertilizer Application Fertilized GLBRC Main Site treatment G1 Rep (2, 3, 4, 5), G2 (All Reps), G4 (All Reps) with potash (0-0-60) at 300 lbs/A. The 300 lbs/A potash provided 180 lbs/A K2O to the plots. Average speed while spreading was 1.7 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 1:00 p.m. Sunny 72 degrees F. 35% humidity, 2 mph West wind. Weather Conditions at 6:35 p.m. Sunny, 73 degrees F. 27% humidity, 5 mph West wind.

2015-04-17 Fertilizer Application Fertilized GLBRC Main Site treatment G3 (All Reps) with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading was 2.4 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 1:00 p.m. Sunny 72 degrees F. 35% humidity, 2 mph West wind. Weather Conditions at 6:35 p.m. Sunny, 73 degrees F. 27% humidity, 5 mph West wind.

2015-04-17 Fertilizer Application Fertilized GLBRC Bait Crop, behind the brown house and the 5 plots in rep 6 with potash (0-0-60) at 200 lbs/A. The 200 lbs/A potash provided 120 lbs/A K2O to the plots. Average speed while spreading was 2.4 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 1:00 p.m. Sunny 72 degrees F. 35% humidity, 2 mph West wind. Weather Conditions at 6:35 p.m. Sunny, 73 degrees F. 27% humidity, 5 mph West wind.

2015-04-17 Fertilizer Application Fertilized the LTER N-Rate Fertility Study with potash (0-0-60) at 200 lbs/A. The 200 lbs/A potash provided 120 lbs/A K2O to the plots. Average speed while spreading was 2.4 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 1:00 p.m. Sunny 72 degrees F. 35% humidity, 2 mph West wind. Weather Conditions at 6:35 p.m. Sunny, 73 degrees F. 27% humidity, 5 mph West wind.

2015-04-23 Fertilizer Application Fertilized the LTER Main Site treatment T6 all replications with a total of 300 lbs/A of potash (0-0-60) and 20 lbs/A of (20%) boron (B). Applied in split application: first application was potash only and second application was potash with boron. Please see Following Notes: April 23, 2015 - Fertilized LTER Main Site treatment T6 all replicaitons (5, 4, 3, 2, 1, 6) with potash (0-0-60) at 150 lbs/A. The 150 lbs/A potash provided 90 lbs/A K2O to the plots. Average speed while spreading was 3.4 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 8:00 a.m. Cloudy 33 degrees F. 79% humidity, 7 mph North West wind. Weather Conditions at 12:15 p.m. cloudy, 36 degrees F. 57% humidity, 13 mph North West wind. April 24, 2015 - Fertilized the LTER Main Site treatment T6 all replications(6, 5, 4, 3, 2, 1) with potash (0-0-60) and boron (10%). A total of 170 lbs/A was applied: 150 lbs/A potash which provided 90 lbs/A K2O; and 20 lbs/A of 10% boron which supplied 2 lbs/A of Boron to the plots. Average speed while spreading was 3.1 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 8:00 a.m. Sunny 31 degrees F. 76% humidity, calm North East wind. Weather Conditions at 3:00 p.m. Sunny, 55 degrees F. 28% humidity, calm South East Wind.

2015-04-23 Fertilizer Application April 7, 2015 Fertilized LTER lysimeter field with potash (0-0-60) at 200 lbs/A. The 200 lbs/A potash provided 120 lbs/A K2O to the field. Started from the West side and only fertilized to the weather station. Average speed while spreading was 3 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. April 23, 2015 Fertilized the LTER Lysimeter field from the weather station to the East with potash (0-0-60) at 150 lbs/A. This side received only 150 lbs/A instead of 200 lbs/A due to running short (plan to go back over with 50 lbs/A). The 150 lbs/A potash provided 90 lbs/A K2O to the field. Average speed while spreading was 3.4 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 180; air pressure was 13 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather Conditions at 8:00 a.m. Cloudy 33 degrees F. 79% humidity, 7 mph North West wind. Weather Conditions at 12:15 p.m. cloudy, 36 degrees F. 57% humidity, 13 mph North West wind. April 24, 2015 Fertlized LTER Lysimeter field (where only 150 lbs/A was applied) with an additional potash (0-0-60) and Boron (10% B) at 50 lbs/A. There was 44 lbs/A potash applied to total 194 lbs/A on this section of the field. The 194 lbs/A potash provided 116.4 lbs/A K2O. There was 5.88 lbs/A of (10%) Boron mixed with the potash which provided .588 lbs/A of actual Boron.

2015-04-16 Fertilizer Application Fertilized the ECB study with super phosphate (0-46-0) at 200 lbs/A. The 200 lbs/A of super phosphate provided 92 lbs p2O5/A to the plots. Average speed was 2.4 with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. The slides on the Gandy were on the smallest setting with the 1 1/4" (yellow) metering wheel; deflector spacing 22.5"; meter cal number was 184; air pressure was 13 p.s.i; Boom length was 30 ft, nozzles 24-30 inches above ground level. Weather conditions at 10:45 a.m. cloudy 52 degrees F. 56% humidity, 6 mph east wind. Conditions at 6:00 p.m. partly cloudy, 60 degrees F. 65% humidity and 1 mph south west wind.

2016-03-30 Fertilizer Application Fertilized LTER Main Site treatment T2, all replications (1, 4, 3, 2, 5, 6) with MAP (11-52-0) and potash (0-0-60) blend at 275 lbs/A. MAP was applied at 175 lbs/A providing 19 lbs/A of N, and 91 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Average speed while spreading was 2.2 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 201; air pressure was 15 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2016-04-05 Fertilizer Application Fertilized LTER Main Site treatment T1, replications (5, 1 on April 5, 2016) conditions got to wet to continue so reps (2, 3, 4, and 6 were fertilized April 14, 2016) with MAP (11-52-0) and potash (0-0-60) blend at 275 lbs/A. MAP was applied at 175 lbs/A providing 19 lbs/A of N, and 91 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Average speed while spreading was 2.2 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 201; air pressure was 15 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Due to wet conditions only replications 5 and 1 from T1 were fertilized on this day.

2016-04-15 Fertilizer Application Fertilized LTER Main Site treatment T6 all replications (5,6,4,3,2,1), N-Rate Study, and T8nt plots with super phosphate (0-46-0) and potash (0-0-60) blend at 350 lbs/A. Super phosphate was applied at 200 lbs/A providing 92 lbs/A of P2O5. Potash was applied at 150 lbs/A providing 90 lbs/A of K2O. Average speed while spreading was 2.0 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 175; air pressure was 15 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2016-04-16 Fertilizer Application Fertilized LTER Main Site treatment T3 all replications: (5, 4, 3, 2, 1, and 6), and lysimeter field with super phosphate (0-46-0) and potash (0-0-60) blend at 350 lbs/A. Super phosphate was applied at 200 lbs/A providing 92 lbs/A of P2O5. Potash was applied at 150 lbs/A providing 90 lbs/A of K2O. Average speed while spreading was 2.0 mph with JD 7420b tractor and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 175; air pressure was 18 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2016-05-23 Fertilizer Application Fertilized GLBRC Main Site treatment G4 all replications (5, 3, 1, 2, 4)with super phosphate (0-46-0) and potash (0-0-60) blend at 350 lbs/A. Super phosphate was applied at 200 lbs/A providing 92 lbs/A of P2O5. Potash was applied at 150 lbs/A providing 90 lbs/A of K2O. Average speed while spreading was 2.0 mph with JD 7420b tractor and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 175; air pressure was 18 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2016-05-24 Fertilizer Application Applied pelletized lime to GLBRC Main Site plots G3R1, G4R2, G4R4, at 1.125 tons/A. Lime was applied with Gandy Orbit Air narrowed down to 22.5 feet swath making 4 passes across the plot traveling 1 mph applying 750 lbs/A. Each plot was gone over 3 times to equal the 1.125 tons/A or 2250 lbs/A.

2016-05-24 Fertilizer Application Applied pelletized lime to GLBRC Main Site plots G3R5, G4R4, G4R5 at 2.25 tons/A. Lime was applied with Gandy Orbit Air narrowed down to 22.5 feet swath making 4 passes across the plot traveling 1 mph applying 750 lbs/A. Each plot was gone over 6 times to equal the 2.25 tons/A or 4500 lbs/A.

2016-05-26 Fertilizer Application Applied pelletized lime to GLBRC Main Site plots G1R5, G2R3, G2R4, G3R3 at 2.25 tons/A. Lime was applied with Gandy Orbit Air narrowed down to 22.5 feet swath making 4 passes across the plot traveling 1 mph applying 750 lbs/A. Each plot was gone over 6 times to equal the 2.25 tons/A or 4500 lbs/A.

2016-06-07 Fertilizer Application Applied pelletized lime to GLBRC Main Site plots G1R2, G1R3, and G1R4 at 2.25 tons/A. Lime was applied with Gandy Orbit Air narrowed down to 22.5 feet swath making 4 passes across the plot traveling 1 mph applying 750 lbs/A. Each plot was gone over 6 times to equal the 2.25 tons/A or 4500 lbs/A.

2016-06-10 Fertilizer Application Applied potash to GLBRC Main Site, treatments G1, G2, and G3, all replications. Rates were applied according to soil sample analysis so they varied by plot. Rates are as follows, G1 R2, R5 applied at 250 lbs/A, G1 R3 280 lbs/A, and G1R4 was 150 lbs/A. G2 R1, R2, R3, R5 applied at 250 lbs/A and G2R4 was 150 lbs/A. G3 R1, R3, R4, R5 applied at 250 lbs/A and G3R2 350 lbs/A.

2016-06-14 Fertilizer Application Applied phosphorus to GLBRC Main Site treatments G1: R2-R5, G2: R1, R2, R3, R5, and G3: R1-R5. Applied super phosphate 0-46-0 at 100 lbs/A on all plots listed except G3:R4 which received 120 lbs/A.

2017-05-08 Fertilizer Application Fertilized LTER Main Site treatment T1, T2, T3, all replications, N-Rate Study, and Lysimeter Field (56.8 Acres) with potash (0-0-60). Potash was applied at 80 lbs/A providing 48 lbs/A of K2O. Average speed while spreading was 5.2 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 15 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2017-05-09 Fertilizer Application Fertilized GLBRC G1 plots all replication (1, 2, 3, 4, 5) and all bait crop (perimeter edges, behind house, rep 6) with potash (0-0-60). G1 plots were applied at recommendation levels per plot. G1 Rep 1, 2, and 3 applied at 242 lbs/A (providing 145 lbs K2O/A), rep 4 applied at 100 lbs/A (providing 60 lbs K2O/A), rep 5 applied at 67 lbs/A (providing 40 lbs K2O/A). Bait crop was applied at 80 lbs/A (providing 48 lbs K2O/A). Average speed while spreading was 2.4-5.0 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 15 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2020-04-16 Fertilizer Application Fertilized LTER Main Site treatment T1 all replications (6, 3, 2, 4, 1, 5) with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Entire plots were fertilized due to discontinuation of micro plots in North West corners.

2017-05-31 Fertilizer Application Fertilized GLBRC G2, G3, G4 all replications. Potash was applied by soil test recommendation to each plot (please refer to attached document for different rates per plot). Average speed while spreading was 2-3 mph. Equipment used: JD 7420b tractor and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 69 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 199; air pressure was 18 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2018-05-29 Fertilizer Application Fertilized the Switchgrass fertility experiment. Pelletized limestone was applied at four rates: 1 ton/A, 2.5 ton/A, 3.0 ton/A, and 3.5 ton/A. All applications were with multiple passes over the plots to reach the correct amount (the gandy applicator has a limitation of a maximum application rate of approximately 999 lbs/A due to product flow through the hoses). Pelletized limestone was applied to the following: SWF4(1ton/A), SWF5(2.5 ton/A), SWF6(2.5 ton/A), SWF7(3.0 ton/A), SWF8(3.5 ton/A) . Applied with the John Deere 7420a tractor traveling 0.9-1.2 mph (range A1, 1100-1400 rpm) and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 70 lbs/cu ft; metering wheel 1 1/4” diameter (yellow); deflector spacing 22.5”; meter cal number 163; air pressure was 20 p.s.i.; Boom length 15 feet extending from the center of the Gandy to the right only, nozzles 16-24 inches above the ground level. Weather conditions: sunny, temperatures 60 degrees F.

2018-06-07 Fertilizer Application Applied 250 lbs/A of potash to G1 and G2 plots. Applied with the John Deere 7420a tractor traveling 2.4 mph and a Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: metering wheel 1 1/4” diameter (yellow); deflector spacing 22.5”; meter cal number 199; air pressure 20 p.s.i.; Boom width 30 feet, nozzles 16-24 inches above ground level, 3 passes per plot. also applied same rate on the two

2019-03-28 Fertilizer Application Fertilized LTER Main Site winter wheat treatment T1, all replications with MAP (11-52-0) and potash (0-0-60) blend at 275 lbs/A. MAP was applied at 175 lbs/A providing 19 lbs/A of N, and 91 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Average speed while spreading was 2.7 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 201; air pressure was 19 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start: 1:45 p.m. partly cloudy 60.5 degrees F, 6-8 mph west wind, 52.8 % humidity. Conditions at the end: 5:00 p.m. cloudy, 61.9 degrees F, 8-9 mph west, 50.2 % humidity.

2019-03-28 Fertilizer Application Fertilized LTER Main Site winter wheat treatment T2, all replications with MAP (11-52-0) and potash (0-0-60) blend at 275 lbs/A. MAP was applied at 175 lbs/A providing 19 lbs/A of N, and 91 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Average speed while spreading was 2.7 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 201; air pressure was 19 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions at the start: 10:00 a.m. partly cloudy, 49 degrees F, 9-11 mph south west wind, 76% humidity. Conditions at the end: 1:45 p.m. partly cloudy 60.5 degrees F, 6-8 mph west wind, 52.8 % humidity.

2019-03-28 Fertilizer Application Fertilized LTER Main Site winter wheat treatment T8nt, all replications with MAP (11-52-0) and potash (0-0-60) blend at 275 lbs/A. MAP was applied at 175 lbs/A providing 19 lbs/A of N, and 91 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Average speed while spreading was 2.7 mph with JD 7420 B and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 64 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 201; air pressure was 19 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level. Weather conditions: 5:00 p.m. cloudy, 61.9 degrees F, 8-9 mph west, 50.2 % humidity.

2019-04-08 Fertilizer Application Fertilized LTER Main Site winter wheat N-Rate study, treatment T3 all replications: (5, 4, 3, 2, 1, and 6), and west half of lysimeter field (weather station to the west that had NO WINTER WHEAT) with super phosphate (0-46-0), potash (0-0-60) and sulfur (0-0-0-85) blend at 355 lbs/A. Super phosphate was applied at 225 lbs/A providing 103.5 lbs/A of P2O5. Potash was applied at 100 lbs/A providing 60 lbs/A of K2O. Sulfur was applied at 30 lbs/A providing 25.5 lbs/A of sulfur. Weather at the start 11:30 a.m. partly cloudy 58.6 degrees F, 5-7 mph west winds, 76.7% humidity. Weather at 4:50 p.m. sunny 67.5 degrees F 5-7 mph west winds, 30 % humidity. Weather at 6:30 p.m. sunny 69.2 degrees F 6-8 mph west winds, 24.2 % humidity. Average speed while spreading was 1.7 mph with JD 7420b tractor and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 202; air pressure was 19 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2019-05-24 Fertilizer Application Fertilized GLBRC Main Site treatment G1 with potash. G1 micro plots (West 15') Reps 2 and 3 received 125 lbs/A of potash equaling 75 lbs/A of K2O. The remaining micro plots reps 1, 4 and 5 received 0 potash. G1 Main plots reps 1, 2, 3 and 5 received 250 lbs/A potash equaling 150 lbs/A of K2O. G1 main plot rep 4 received no potash.

2019-05-24 Fertilizer Application Fertilized GLBRC Main Site treatment G2 with potash. G2 plots reps 1, 2, 4 and 5 the entire plot received 250 lbs/A of potash equaling 150 lbs/A of K2O. G2 Rep 3 the micro plot (East 15') received 0 potash but the remaining plot area received the 250 lbs/A of potash equaling 150 lbs/A of K2O.

2019-05-28 Fertilizer Application Fertilized GLBRC Main Site Rep 6 and all perimeter bait crop with 125 lbs/A of potash equaling 75 lbs/A of K2O.

2019-05-31 Fertilizer Application Fertilized GLBRC Main Site treatment G1 with Super phosphate 0-46-0. G1 micro plots (West 15') Reps 1, 2, 3, and 5 received 130 lbs/A of 0-46-0 equaling 60 lbs/A of P2O5. G1 Main plots reps 2, 3, 4 and 5 received 130 lbs/A super phosphate equaling 60 lbs/A of P2O5. G1 main plot rep 1, and micro plot in rep 4 received no phosphorous.

2019-05-31 Fertilizer Application Fertilized GLBRC Main Site treatment G2 with super phosphate 0-46-0. G2 plots reps 1, 2, 3 and 5 the entire plot received 130 lbs/A of 0-46-0 equaling 60 lbs/A of P2O5. G2 Rep 4 received 0 phosphorous.

2019-05-31 Fertilizer Application Fertilized GLBRC Main Site Rep 6 and all perimeter bait crop with 65 lbs/A of super phosphate 0-46-0 equaling 30 lbs/A of P205.

2019-06-12 Fertilizer Application Fertilized LTER Main Site treatment T5 poplar plots all replications (5, 1, 2, 3, 4, 6) with potash. Applied 300 lbs/A of potash equaling 180 lbs/A of K2O per acre.

2020-04-16 Fertilizer Application Fertilized LTER Main Site treatment T3 all replications (5, 4, 2, 1, 3, 6) with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Center prairie strip was included in the fertilization of the plots.

2020-04-20 Fertilizer Application Fertilized LTER Main Site treatment T2 all replications (6, 2, 5, 2, 3, 4) with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Entire plots were fertilized.

2020-05-04 Fertilizer Application Fertilized GLBRC Main Site treatments G1, G2, G3, old productivity study, bait crop (by brown house, rep 6, north and east perimeter and inside 30 ft of south perimeter) with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Entire plots were fertilized.

2020-05-04 Fertilizer Application Fertilized LTER Main Site N-Rate Study, CE1, CE2, CE3 plots, Lysimeter field from east to west only 1 pass past the start of T2 plot (ran out), T8nt plots, with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Entire plots were fertilized.

2021-04-27 Fertilizer Application Fertilized LTER Main Site treatment T2 reps: (5, 2, 4, 1) with potash (0-0-60) at 150 lbs/A. Reps 3 and 6 were fertilized at different rates so separate ag-log entries were created for rep 3 and 6 applications respectfully. 150 lbs/A of potash 0-0-60 equals 90 lbs/A K2O. Entire plot areas were fertilized.

2021-04-27 Fertilizer Application Fertilized LTER Main Site treatment T2 rep 6 with potash (0-0-60) at 163 lbs/A. 163 lbs/A of potash 0-0-60 equals 97.8 lbs/A K2O. Entire plot area was fertilized. We did not change the metercal setting (197) on the Raven controller/monitor to apply the 160 lbs/A. We used the same metercal setting (197) we just change the rate per acre from 150 lbs/A to 160 lbs/A. We used the same metercal (197) and calibration settings used to apply the 150 lbs/A to T2 reps 1, 2, 4, and 5. For calibration numbers see the ag-log entry for April 27, 2021 T2 reps 1, 2, 4, and 5.

2021-04-27 Fertilizer Application Fertilized LTER Main Site treatment T2 rep (3) with potash (0-0-60) at 100 lbs/A. 100 lbs/A of potash 0-0-60 equals 60 lbs/A K2O. Entire plot area was fertilized.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T1 reps: (5,1,4,2) with potash (0-0-60) at 150 lbs/A. Reps 3 and 6 were fertilized at different rates so separate ag-log entries were created for rep 3 and 6 applications respectfully. 150 lbs/A of potash 0-0-60 equals 90 lbs/A K2O. Entire plot areas were fertilized. Meter calibration setting was 197.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T1 rep (3) with potash (0-0-60) at 110 lbs/A. 110 lbs/A of potash 0-0-60 equals 66 lbs/A K2O. Entire plot area was fertilized. Meter calibration setting was 197.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T1 rep (6) with potash (0-0-60) at 200 lbs/A. 200 lbs/A of potash 0-0-60 equals 120 lbs/A K2O. Entire plot area was fertilized. Meter calibration setting was 201.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T3 reps: (5,4,2,1) with potash (0-0-60) at 150 lbs/A. Reps 3 and 6 were fertilized at different rates so separate ag-log entries were created for rep 3 and 6 applications respectfully. 150 lbs/A of potash 0-0-60 equals 90 lbs/A K2O. Entire plot areas were fertilized including prairie strip. Meter calibration setting was 197.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T3 rep (3) with potash (0-0-60) at 80 lbs/A. 80 lbs/A of potash 0-0-60 equals 48 lbs/A K2O. Entire plot area was fertilized including prairie strip. Meter calibration setting was 197.

2021-04-30 Fertilizer Application Fertilized LTER Main Site treatment T3 rep (6) with potash (0-0-60) at 165 lbs/A. 165 lbs/A of potash 0-0-60 equals 99 lbs/A K2O. Entire plot area was fertilized including prairie strip. Meter calibration setting was 197.

2021-05-05 Fertilizer Application Fertilized GLBRC perimeter bait crop with 200 lbs/A of potash equaling 120 lbs/A of K2O. North and first 2 east passes applied on 05/05/21 and applied the rest of the east pass and south passes 05/05/21.

2021-05-05 Fertilizer Application Fertilized GLBRC Main Site treatments G3 all reps (5,4,1,3,2) sorghum plots. Fertilized GLBRC Main Site G3 with 350 lbs/A of potash equaling 210 lb/A of K2O. Gandy applicator metercal number set to (201) at 350 lb/A.

2021-05-05 Fertilizer Application Fertilized GLBRC Rep 6 with 300 lbs/A of potash equaling 180 lb/A of K2O. Five blocks in total starting from the second block east of the brown house applying west end to east end in north south direction.

2021-05-05 Fertilizer Application Fertilized GLBRC G1 Rep 2. G1 Rep 2 was fertilized with 250 lbs/A of potash equaling 150 lb/A of K2O. Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (201) at 250 lb/A. West 15' microplot was fertilized at 75lbs/ A with a metercal setting of 197 on applicator.

2021-05-05 Fertilizer Application Fertilized GLBRC G1 Rep 3. G1 Rep 3 was fertilized with 100 lbs/A of potash equaling 60 lb/A of K2O. Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (197) at 100 lb/A. West 15' microplot was fertilized at 50lbs/ A with a metercal setting of 197 on applicator.

2021-05-05 Fertilizer Application Fertilized GLBRC G2 all reps (1, 2, 3, 4, 5). GLBRC G2 all reps were fertilized at 300 lbs/A of potash equaling 180 lb/A of K2O. Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (201) at 300 lb/A. West 15' microplot was fertilized at 50lbs/ A with a metercal setting of 197 on applicator. All G2 microplots accept G2R5 were fertilized at the same rate as the main plot (300lbs/A) G2R5 microplot was fertilized at 100lb/A.

2021-05-06 Fertilizer Application Fertilized LTER Main Site T8nt plots all reps with potash (0-0-60) at 250 lbs/A. 250 lbs/A of potash 0-0-60 equals 150 lbs/A K2O. Equipment used: JD 7420b and Gandy 30' forced air spreader. Metercal setting was 201 at 250lb rate. Entire plots were fertilized.

2021-05-07 Fertilizer Application Fertilized LTER Main Site Lysimeter field with potash (0-0-60) at 200 lbs/A. 200 lbs/A of potash 0-0-60 equals 120 lbs/A K2O. Entire plot area was fertilized.

2021-05-07 Fertilizer Application Fertilized LTER Resource Gradient Experiment with potash (0-0-60) at 150 lbs/A. 150 lbs/A of potash 0-0-60 equals 90 lbs/A K2O. (F1 101 ) received 250 lbs/A equipment rate error. Entire plot area was fertilized.

2021-05-07 Fertilizer Application Fertilized LTER Cellulosic Biofuel Diversity Experiment 4 reps of CE1, CE2, and CE3 with potash (0-0-60) at 200 lbs/A. 200 lbs/A of potash 0-0-60 equals 120 lbs/A K2O.

2021-05-10 Fertilizer Application Fertilized LTER Main Site treatment T1 rep (4) with phosphate (0-46-0) at 80 lbs/A. Entire plot area was fertilized.

2021-05-10 Fertilizer Application Fertilized LTER Main Site treatment T2 rep (5) with phosphate (0-46-0) at 120 lbs/A. Entire plot area was fertilized.

2021-05-10 Fertilizer Application Fertilized LTER Main Site treatment T2 rep (2) with phosphate (0-46-0) at 80 lbs/A. Entire plot area was fertilized.

2021-05-10 Fertilizer Application Fertilized LTER Main Site treatment T3 rep (3,6) with phosphate (0-46-0) at 80 lbs/A. Entire plot area was fertilized.

2021-05-10 Fertilizer Application Fertilized LTER Main Site treatment T3 rep (5,4,1) with phosphate (0-46-0) at 120 lbs/A. Entire plot area was fertilized.

2021-05-12 Fertilizer Application Fertilized GLBRC G2 (3,2,1,5,4). GLBRC G2 all reps were fertilized at 160 lbs/A of 0-46-0 Phosphorus Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (201) at 160 lb/A. All G2 microplots where fertilized at the same rate as the main plot (160lbs/A)

2021-05-12 Fertilizer Application Fertilized GLBRC G1 Reps (4, 5, 2, 3). G1R1 did not recieve any 0-46-0 fertilizer in 2021 the amount applied to G1R1 was 0 lbs/A (based on the MSU Soil Testing Lab G1R1 did not need any P fertilizer in 2021). GLBRC G1 reps: 4, 5, 2, & 3 were fertilized at 160 lbs/A of 0-46-0 Phosphorus fertilizer. Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (201) at 160 lb/A. G1 R4 microplot was not fertilized (0lbs/A) All other microplots were fertilized at (160 lbs/A).

2021-05-12 Fertilizer Application Fertilized GLBRC G3 (5,3,2,1,4). GLBRC G3 all reps were fertilized at 160 lbs/A of 0-46-0 Phosphorus Equipment used was: JD 7420b and Gandy 30' forced air spreader. Gandy applicator metercal number set to (201) at 160 lb/A. All G3 microplots where fertilized at the same rate as the main plot (160lbs/A)

2022-05-09 Fertilizer Application Fertilized LTER Main Site winter wheat T2 Reps 4,1,6, with super phosphate (0-46-0), at 170 lbs/A. Super phosphate was applied at 170 lbs/A providing 78.2 lbs/A of P2O5. Raven controller metercal set to 201.

2022-05-10 Fertilizer Application Fertilized LTER Main Site winter wheat T1 Reps 5,1,4,3,6 with super phosphate (0-46-0), at 170 lbs/A. Super phosphate was applied at 170 lbs/A providing 78.2 lbs/A of P2O5. Raven controller metercal set to 201 Temperature 67.8° RH 57.9% wind speed (3m) 10.37 mph at 10:00 am

2022-05-10 Fertilizer Application Fertilized LTER Main Site winter wheat T3 Reps 5,2,4,3,1,6 with super phosphate (0-46-0), at 170 lbs/A. Super phosphate was applied at 170 lbs/A providing 78.2 lbs/A of P2O5. Raven controller metercal set to 201 Temperature 67.8° RH 57.9% wind speed (3m) 10.37 mph at 10:00 am

2022-05-10 Fertilizer Application Fertilized GLBRC G1 and G3 all Reps (1,2,3,4,5), were fertilized at 130 lbs/A of 0-46-0 Phosphorus fertilizer. Raven controller metercal set to 201.

2022-05-10 Fertilizer Application Fertilized GLBRC G2 all Reps (1,2,3,4,5), were fertilized at 200 lbs/A of 0-46-0 Phosphorus fertilizer. Raven controller metercal set to 201.

2022-05-11 Fertilizer Application Fertilized LTER Cellulosic Biofuel Diversity Experiment 4 reps of CE1, CE2, and CE3 with phosphorus fertilizer (0-46-0) at 130 lb/A. Raven Controller metercal set to 201 Weather at 9:30 am 73.3° F, RH 80.7%, wind speed (3m) 1.02 MPH wind direction South East. Operations began at 8:30am and ended at 9:45am

2022-05-12 Fertilizer Application Fertilized LTER Main Site treatment T1 and T2 all reps (1, 2, 3, 4, 5, 6) with potash (0-0-60) at 70 lb/A. T1R5, T2R5, T1R6, and T2R2 were fertilized on the afternoon of 05/11/22. Weather at noon on 05/12, Temperature: 81.6° F; RH 29.8%; Wind Speed: (3m) 7.41 MPH; Wind Direction: South.

2022-05-12 Fertilizer Application Fertilized LTER Cellulosic Biofuel Diversity Experiment 4 reps of CE1, CE2, and CE3 with potash (0-0-60) at 150 lbs/A. 150 lbs/A of potash 0-0-60 equals 90 lbs/A K2O. Weather at noon on 05/12, temperature 81.6° F, RH 29.8% wind speed (3m) 7.41 MPH wind direction South

2022-05-12 Fertilizer Application Fertilized LTER Main Site T8nt plots all reps with potash (0-0-60) at 150 lbs/A. Weather at noon on 05/12, temperature 81.6° F, RH 29.8% wind speed (3m) 7.41 MPH wind direction South

2022-05-10 Fertilizer Application Fertilized LTER Main Site T8nt plots all reps with phosphorous fertilizer (0-46-0) at 170 lbs/A. Weather at 10:00 am 67.8°F, RH 57.9%, wind speed (3m) 10.37 MPH, wind direction South.

2022-05-12 Fertilizer Application Fertilized GLBRC Main Site treatments G1 and G3 with potash all reps (1,2,3,4,5) at 150 lbs/A.

2022-05-12 Fertilizer Application Fertilized GLBRC Main Site treatment G3 all reps (1,2,3,4,5) with potash (0-0-60) at 500 lbs/A. The Gandy applicator was unable to flow sufficient product at the 500 lbs/A rate, consequently two passes of 250 lbs/A were made per plot. While fertilizing G2R3 several nozzles clogged on each of the five passes. The first pass at 500 lbs/A caused two nozzles to clog. Each of the subsequent four passes done at 250 lbs/A rate caused one nozzle to clog, no further issues were encountered on the other four reps. Weather at 7:00 pm was 82°F, RH 23.3%, wind speed (3m) 6.01 MPH wind direction South.

2022-05-17 Fertilizer Application Fertilized LTER Main Site winter wheat treatment T3 all replications (5, 4 ,2, 1, 3 and 6), Plots were fertilized with a dry fertilizer blend of potash and sulfur (0-0-44.2-22.4). Application rate for the mixed fertilizer was 95 lbs/A. With individual rates of 70 lbs/A potash and 25 lbs/A sulfur Application began at 10:00 am and ended at 1:00 pm. Weather conditions at 10:00 am were clear 56°F RH 54.8 % Wind Speed (3m) 4.85 MPH Wind Direction North

2022-05-17 Fertilizer Application Fertilized LTER Main Site Lysimeter field with potash sulfur mix fertilizer (0-0-44.2-22.4) at 95 lbs/A. Individual rates were 70 lbs/A potash and 25 lbs/A sulfur Entire plot area was fertilized beginning at 2:00 pm until 3:15 pm. Weather conditions at 2:00 pm were clear: Temperature 65°F RH 40.0% Wind Speed (3m) 11.08 MPH Wind Direction North West

2022-05-17 Fertilizer Application Fertilized LTER Main Site winter wheat N-Rate study, with potash and sulfur mix fertilizer (0-0-44.2-22.4) at 95 lbs/A. Individually, application rates were 70 lbs/A potash and 25 lbs/A Sulfur. All plots, irrigated and rainfed were fertilized. Weather conditions at 10:00 am were clear 56°F RH 54.8 % Wind Speed (3m) 4.85 MPH Wind Direction North

2022-04-27 Fertilizer Application Fertilized LTER Main Site winter wheat N-Rate study, with super phosphate (0-46-0), at 170 lbs/A. Super phosphate was applied at 170 lbs/A providing 78.2 lbs/A of P2O5. Application of RGE started at 5:45 P.M. and ended at 6:25 P.M. Weather during the application was 43.7 degrees F 7-8 mph Northwest winds, 49.1% humidity. Average speed while spreading was 3 mph with JD 7420b tractor and 30' Gandy Orbit-Air fertilizer applicator controlled by a Raven 6000 which monitored the application and automatically adjusted the metering rate for changes in ground speed. For the Gandy/Raven set-up, the following were used: Density 68 lbs/cu ft; metering wheel 1 1/4" diameter (yellow); deflector spacing 22.5"; meter cal number 202; air pressure was 19 p.s.i.; Boom length 30 ft, nozzles 24-30 inches above ground level.

2022-05-02 Fertilizer Application Fertilized LTER Main Site winter wheat T2 Reps 5,2,3, with super phosphate (0-46-0), at 170 lbs/A. Super phosphate was applied at 170 lbs/A providing 78.2 lbs/A of P2O5. Application of started at 2:30 P.M. and ended at 3:50 P.M.

2023-04-19 Fertilizer Application Fertilized LTER Main Site treatment T1 and T2, T1R6, T2R5, T1R5, T2R2 with potash (0-0-60) at 85 lb/A. Application began at 10:15 am and concluded at 2:15 pm. Application was done at 4 mph, Gandy metercal set to 201, density of potash was 70 lbs/cubic ft. Weather at 10:00 am 4/19/23 Temperature: 38.9°F Wind Speed (5 minute at 3m) : 8.48 mph Wind Direction: South East Relative Humidity: 68.7% Weather Conditions at 2:30pm: Temperature: 55.8° F; Wind Speed (5 minute at 3m) : 9.05 mph Wind Direction: South East Relative Humidity: 40.3%

2023-04-20 Fertilizer Application Fertilized LTER Cellulosic Biofuel Diversity Experiment 4 reps of CE1, CE2, and CE3 with potash (0-0-60) at 170 lbs/A. It was applied in 2 applications of 85 lbs/A each. Fertilized the T8nt R2 and R4 (2 plots to the North side) plots with potash (0-0-60) at 170 lbs/A. It was applied in 2 applications of 85 lbs/A each. Fertilized T8nt R1 and R3 (2 plots to the South side) plots with potash (0-0-60) at 170 lbs/A. It was applied in 2 applications of 85 lbs/A each. Completed these 2 plots on 4/24/23 at 2 pm. Started application at 1:00 pm in the CE study and had to stop application of the T8nts at 2 pm due to monitor error. Weather during application at 2:00 pm on 04/20/23, Temperature 68.2° F RH 51.1% Wind speed at (3m) 14.48 MPH Wind direction - South Weather during application at 2:00 pm on 04/24/23, Temperature 46° F RH 40.1% Wind speed at (3m) 5.05 MPH Wind direction - West

2023-04-26 Fertilizer Application Fertilized LTER Main Site treatment T1 and T2 (T2R6, T1R3, T2R1, T1R2, T1R4) with potash (0-0-60) at 85 lb/A on 4/26/23. Fertilized site treatment T1 and T2 (T2R4, T2R3, T1R1) with potash (0-0-60) at 85 lb/A on 4/27/23. Application was done at 4 mph, Raven SCS600 metercal set to 201, density of potash was 70 lbs/cubic ft. Weather conditions at 11:00 am 4/26/23 Temperature: 42.5°F Wind Speed (5 minute at 3m) : 7.17 mph Wind Direction: Northwest Relative Humidity: 49.9% Weather Conditions at 9:00 a.m on 4/27/23: Temperature: 43.3° F; Wind Speed (5 minute at 3m) : 3.19 mph Wind Direction: South East Relative Humidity: 72%

2023-04-27 Fertilizer Application Fertilized LTER Main Site treatment T3 all reps (R5, R4, R2, R1, R3, R6) with potash (0-0-60) at 85 lb/A. Prairie strips were not fertilized. Application began at 1:30 pm and concluded at 5:00 pm. Application was done at 4 mph, Raven SCS600 metercal set to 201, density of potash was 70 lbs/cubic ft. Weather at 1:30 am 4/27/23 Temperature: 57.2°F Wind Speed (5 minute at 3m) : 10.79 mph Wind Direction: South Relative Humidity: 36.1% Weather Conditions at 5:15 pm: Temperature: 62.5° F; Wind Speed (5 minute at 3m) : 8.48 mph Wind Direction: South East Relative Humidity: 25.8%

2023-05-18 Fertilizer Application Fertilized GLBRC Main Site treatment G3 all reps (2,3,5,4,1) with potash (0-0-60) at 350 lbs/A. Fertilizer was applied at 1.5 MPH and completed in one pass over everything. Weather at 4:45 pm was 67.9°F, RH 25%, wind speed (3m) 5.4 MPH wind direction South East.

2023-05-18 Fertilizer Application Fertilized GLBRC Main Site treatment G2 all reps (3,2,5,1,4) with potash (0-0-60) at 300 lbs/A. Fertilizer was applied at 1.5 MPH and completed in one pass over everything. Weather at 4:45 pm was 67.9°F, RH 25%, wind speed (3m) 5.4 MPH wind direction South East.

2023-05-19 Fertilizer Application Fertilized GLBRC Main Site treatment G1 reps (2,3) with potash (0-0-60) at 300 lbs/A. Fertilizer was applied with one pass over everything. G1 reps 1,4 and 5 from the same day. https://aglog.kbs.msu.edu/observations/5830 Weather at 12:00 pm was 71.1°F, RH 55%, wind speed (3m) 6.22 MPH wind direction South West.

2023-05-19 Fertilizer Application Fertilized GLBRC Main Site treatment G1 reps (5,4,1) with potash (0-0-60) at 100 lbs/A. Fertilizer was applied with one pass over everything. G1 reps 2 and 3 from the same day. https://aglog.kbs.msu.edu/observations/5827 Weather at 12:00 pm was 71.1°F, RH 55%, wind speed (3m) 6.22 MPH wind direction South West.

2023-05-19 Fertilizer Application Fertilized LTER Resource Gradient Experiment with potash (0-0-60) at 150 lbs/A. Entire plot area was fertilized. Weather at 12:00 pm was 71.1°F, RH 55%, wind speed (3m) 6.22 MPH wind direction South West.

2023-05-24 Fertilizer Application Fertilized LTER Main Site treatment T4 all reps (R5, R3, R2, R4, R1, R6) with Compass Minerals Protassium+ Organic Ag Standard Sulfate of Potash 0-0-50 Plus 17% Sulfur. The target rate in Raven controller was 200 lbs per acre. Based on amount leftover of product about 230 lbs per acre was applied. The first T4 fertilizer application in decades. Reps 5,3,2 and 4 were applied on 5/24/23. Reps 1 and 6 were applied on 5/25/23. Prairie strips were not fertilized. Application was done at 2 mph, Raven SCS600 metercal set to 201, density of protassium+ was about 100 lbs/cubic ft. Weather at 5:30 pm 5/24/23. Temperature: 64.4°F Wind Speed (5 minute at 3m) : 11.66 mph Wind Direction: North East Relative Humidity: 30.1% Weather Conditions at 11:30 a.m 5/25/23: Temperature: 53.7° F; Wind Speed (5 minute at 3m) : 10.61 mph Wind Direction: East Relative Humidity: 42.4%

2023-05-25 Fertilizer Application Fertilized LTER Main Site treatment T4 all reps (R5, R3, R6, R4, R2, R1) with Organic Granulated Rock Phosphate Fertilizer 0-20-0. The target rate in Raven controller was 265 lbs per acre. Reps 5 and 3 were applied on 5/25/23. Reps 6,4,2 and 1 were applied on 5/26/23. Prairie strips were not fertilized. Application was done at 2 mph, Raven SCS600 metercal set to 145, density of Fertoz was about 85 lbs/cubic ft. Weather at 4:45 pm 5/25/23. Temperature: 66 °F Wind Speed (5 minute at 3m) : 8.95 mph Wind Direction: East Relative Humidity: 24.7% Weather Conditions at 2:30 p.m 5/26/23: Temperature: 70.7° F; Wind Speed (5 minute at 3m) : 7.67 mph Wind Direction: North East Relative Humidity: 22.3%

2024-04-18 Fertilizer Application Fertilized LTER Main Site treatment T4 all reps (R5, R3, R2, R4, R1, R6) with Compass Minerals Protassium+ Organic Ag Granular Sulfate of Potash 0-0-50 Plus 17% Sulfur. The target rate in John Deere Dry Rate Controller was 250 lbs per acre. Prairie strips were not fertilized. Application was done at 2 mph, B1 gear at 1350 engine RPM, fan speed at 15 lb per cubic inch, JD Dry Rate Controller CFR setting at .0160 and density of protassium+ was 85 lbs/cubic ft. Weather at 9:20 a.m 4/18/24. Temperature: 50.1°F Wind Speed (5 minute at 3m) : 7.21 mph Wind Direction: North West Relative Humidity: 71% Weather Conditions at 5:25 p.m 4/18/24: Temperature: 59.3° F; Wind Speed (5 minute at 3m) : 3.04 mph Wind Direction: South East Relative Humidity: 54.2%

2024-04-22 Fertilizer Application Fertilized LTER Main Site treatment T1 plots, reps 5,1,4,2,3 and 6 with potash (0-0-60) at 250 lb/A. Reps 1 and 5 were done 4/22/24. Reps 2,3,4 and 6 were done 4/23/24. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather conditions at 1:00 pm 4/22/24. Temperature: 57.2°F Wind Speed (5 minute at 3m) : 9.26 mph Wind Direction: Southwest Relative Humidity: ?% Weather Conditions at 9:00 a.m on 4/23/24: Temperature: 61.7° F; Wind Speed (5 minute at 3m) : 7.2 mph Wind Direction: Southwest Relative Humidity: 26.8%

2024-04-24 Fertilizer Application Fertilized LTER Main Site treatment T2 plots, reps 3,5,2,4,1 and 6 with potash (0-0-60) at 250 lb/A. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather conditions at 9:10 am 4/24/24. Temperature: 37.5°F Wind Speed (5 minute at 3m) : 7.96 mph Wind Direction: North Relative Humidity: 76.1% Weather Conditions at 2:40 p.m on 4/24/24: Temperature: 41.4° F; Wind Speed (5 minute at 3m) : 6.1 mph Wind Direction: Northeast Relative Humidity: 68.4%

2024-04-24 Fertilizer Application Fertilized LTER Main Site treatment T3 plots, reps 5,4,6,3,2 and 1 with potash (0-0-60) at 250 lb/A. Reps 4 and 5 were done 4/24/24. Reps 1,2,3, and 6 were done 4/25/24. Prairie strips were not fertilized. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather conditions at 3:00 pm 4/24/24. Temperature: 42.6°F Wind Speed (5 minute at 3m) : 5.32 mph Wind Direction: Northwest Relative Humidity: 66.6% Weather Conditions at 8:30 a.m on 4/25/24: Temperature: 37.1° F; Wind Speed (5 minute at 3m) : 4.1 mph Wind Direction: East Relative Humidity: 82.7%

2024-04-25 Fertilizer Application Fertilized LTER Resource Gradient Experiment with potash (0-0-60) at 250 lbs/A. Entire plot area was fertilized. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather at 2:10 pm was 52.4°F, RH 34.6%, wind speed (3m) 4.05 MPH wind direction East.

2024-04-25 Fertilizer Application Fertilized the T8nt Reps 1,2,3 and 4 plots with potash (0-0-60) at 250 lbs/A. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather conditions at 4:40 pm 4/25/24. Temperature: 57.8°F Wind Speed (5 minute at 3m) : 5.02 mph Wind Direction: Northeast Relative Humidity: 29.4%

2024-04-26 Fertilizer Application Fertilized GLBRC Main Site treatment G1 and G2 reps (1,2,3,4 and 5) with potash (0-0-60) at 250 lbs/A. Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather at 10:30 a.m was 50.6°F, RH 52.7%, wind speed (3m) 12.19 MPH wind direction South East.

2024-04-26 Fertilizer Application Fertilized GLBRC Main Site treatment G3 reps (1,2,3,4 and 5) with potash (0-0-60) at 275 lbs/A. Rep 6 plots on the south end were also fertilized with 250 lbs/A of 0-0-60 potash. Plots 3, 4 and 6 (the only ones with nothing planted in them). Application was done at 2 mph, B1 with 1300 engine RPM. JD Dry rate controller CFR was .0160, density of potash was 70 lbs/cubic ft. Gandy air fan was at 15 ounces per square inch. Weather at 3:40 p.m was 62.6°F, RH 25.8%, wind speed (3m) 11.76 MPH wind direction South East.

2024-04-30 Fertilizer Application Fertilized LTER Main Site T2 plots pre-plant all reps (6, 5, 3, 2, 4, 1) with Triple Super Phosphate (0-46-0), at 150 lbs/A. Super phosphate was applied at 150 lbs/A providing 69 lbs/A of P2O5. Application of started at 11:43 A.M. and ended at 4:30 P.M. Application in T2 was done at 3.8 mph in C2 with 1300 engine RPM. JD Dry rate controller CFR was .0155, density of TSP was 60 lbs/cubic ft. Gandy air fan was at 13-15 ounces per square inch. Weather conditions at 11:30 am: Temperature: 60.1°F Wind Speed (5 minute at 3m) : 8.66 mph Wind Direction: West Relative Humidity: 56.3% Weather Conditions at 4:10 p.m: Temperature: 63.7° F; Wind Speed (5 minute at 3m) : 11.81 mph Wind Direction: West Relative Humidity: 46.5%

2024-05-01 Fertilizer Application Fertilized LTER Main Site treatment T1 plots (5, 1, 4, 2, 3, and 6) and T3 plots (5, 4, 2, 1, 3, 6) with Triple Super Phosphate (0-46-0) at 150 lb/A, providing 69 lbs of P2O5. Application in T1 was done at 3 mph in C1 with 1300 engine RPM, and in T3 at 3.8 mph in C2 with 1300 engine RPM. JD Dry rate controller CFR was .0155, density of TSP was 60 lbs/cubic ft. Gandy air fan was at 14 ounces per square inch. Weather conditions at 9:00 am 5/1/24. Temperature: 66.5°F Wind Speed (5 minute at 3m) : 7.34 mph Wind Direction: SouthWest Relative Humidity: 63.6% Weather Conditions at 5:00 p.m on 5/1/24: Temperature: 71.3° F; Wind Speed (5 minute at 3m) : 8.92 mph Wind Direction: West Relative Humidity: 27.3%

2024-05-02 Fertilizer Application Fertilized LTER CE Study corn and soybeans (CE1, CE2, and CE3), and T8nt plots with Triple Super Phosphate (0-46-0), at 150 lbs/A. Super phosphate was applied at 150 lbs/A providing 69 lbs/A of P2O5. Fertilized LTER N-Rate Study (Irrigated and Rainfed) with Triple Super Phosphate (0-46-0) at 200 lbs/A, providing 92 lbs/A of P2O5. Application of started at 10:00 A.M. and ended at 11:50 A.M. Application in done at 3.8 mph in C2 with 1300 engine RPM. JD Dry rate controller CFR was .0155, density of TSP was 60 lbs/cubic ft. Gandy air fan was at 13-15 ounces per square inch. Weather conditions at 10:00 am: Temperature: 61.9°F Wind Speed (5 minute at 3m) : 5.75 mph Wind Direction: East Relative Humidity: 57.5% Weather Conditions at 11:45 p.m: Temperature: 66.3° F; Wind Speed (5 minute at 3m) : 9.74 mph Wind Direction: Southeast Relative Humidity: 44.8%

2024-05-02 Fertilizer Application Fertilized GLBRC G1 plots (1, 2, 3, 4, 5) with Triple Super Phosphate (0-46-0), at 255 lbs/A, providing 117 lbs/A of P2O5. Fertilized GLBRC G2 plots (1, 2, 3, 5, 4) with Triple Super Phosphate (0-46-0), at 200 lbs/A, providing 92 lbs/A of P2O5. Fertilized GLBRC G3 plots (5, 3, 2, 4, 5) with Triple Super Phosphate (0-46-0), at 225 lbs/A, providing 103.5 lbs/A of P2O5. Fertilized GLBRC Bait Crop and Rep 6 plots with Triple Super Phosphate (0-46-0), at 200 lbs/A, providing 92 lbs/A of P2O5. Application of started at 1:30 P.M. and ended at 4:45 P.M. Weather conditions at 1:25 pm: Temperature: 71.2°F Wind Speed (5 minute at 3m) : 7.99 mph Wind Direction: Southeast Relative Humidity: 37.1% Weather Conditions at 3:10 p.m: Temperature: 73.9° F; Wind Speed (5 minute at 3m) : 8.73 mph Wind Direction: Southeast Relative Humidity: 37.1%

2024-05-10 Fertilizer Application Fertilized LTER Main Site Lysimeter Field with Potash 0-0-60 at 250 lb per acre. GLBRC Bait/Trap Crop area was fertilized with the same amount. The Gandy Orbit Air broke on the far east side of the Lysimeter field with a couple passes left unfertilized.