| 2005-08-31 |
Fertilizer Application |
(first entry) I spread triple superphosphate (0-46-0), potash (0-0-62), and boron (B) fertilizers to treatment 6 replications 1, 2, 3, 4, 6, & 5. Actual amounts applied on the 15 acres (6 ha) were 3,920 lbs (1,782 kg) of 0-46-0, 5,990 lbs (2,723 kg) of 0-0-62, and 50 lbs (22.7 kg) of boron. The fertilizers were blended together and applied at the same time. The fertilizer was applied with a JD 7400 tractor, C3 1700 rpm, around 6-7 mph, and a Willmar 6 ton pull type spinner spreader. With a spinner spreader it would have been difficult to spread, in one pass, the entire amount of fertilizer recommended. The pattern of the fertilizer coming out of the spreader may not be a uniform pattern at such a high rate of fertilizer per acre therefore; I split the application rate in half then drove over the plots twice. The driving intervals were based on a 40 ft spreading pattern. The second time over the plots I drove between the first set of driving intervals. After spreading fertilizer on all six replications I had some fertilizer remaining in the spreader (about 1,992 lbs) so I applied the remaining fertilizer onto replications 1, 2, and 5, i.e. I did not change the setting on the fertilizer spreader and I went over reps 1, 2, and 5 for a third time. Replications 1, 2, and 5 had the lowest amount of P and K in the soil, i.e. the highest fertilizer recommendations was for reps 1, 2, and 5. Actual amounts applied to replications 1, 2, and 5 (7.5 acres, 3 ha) was 2,352 lbs (1,069 kg) of 0-46-0, 3,594 lbs (1,634 kg) of 0-0-62, and 30 lbs (13.64 kg) of boron. In replications 1, 2, and 5 the 314 lbs/A of 0-46-0 provided 144 lbs/A (161.7 kg/ha) of P2O5. The 479 lbs/A of 0-0-62 provided 297 lbs/A (333 kg/ha) of K2O. The 30 lbs of boron provided 4 lbs/A (4.5 kg/ha) of boron. Actual amounts applied to replications 3, 4, and 6 (7.5 acres, 3 ha) was 1,568 lbs (713 kg) of 0-46-0, 2,396 lbs (1,089 kg) of 0-0-62, and 20 lbs (9 kg) of boron. In replications 3, 4, and 6 the 209 lbs/A of 0-46-0 provided 96 lbs/A (107.8 kg/ha) of P2O5. The 319 lbs/A of 0-0-62 provided 198 lbs/A (222 kg/ha) of K2O. The 20 lbs of boron provided 2.6 lbs/A (2.99 kg/ha) of boron. |
| 2005-08-31 |
Fertilizer Application |
(second entry) I spread triple superphosphate (0-46-0), potash (0-0-62), and boron (B) fertilizers to treatment 6 replications 1, 2, 3, 4, 6, & 5. Actual amounts applied on the 15 acres (6 ha) were 3,920 lbs (1,782 kg) of 0-46-0, 5,990 lbs (2,723 kg) of 0-0-62, and 50 lbs (22.7 kg) of boron. The fertilizers were blended together and applied at the same time. The fertilizer was applied with a JD 7400 tractor, C3 1700 rpm, around 6-7 mph, and a Willmar 6 ton pull type spinner spreader. With a spinner spreader it would have been difficult to spread, in one pass, the entire amount of fertilizer recommended. The pattern of the fertilizer coming out of the spreader may not be a uniform pattern at such a high rate of fertilizer per acre therefore; I split the application rate in half then drove over the plots twice. The driving intervals were based on a 40 ft spreading pattern. The second time over the plots I drove between the first set of driving intervals. After spreading fertilizer on all six replications I had some fertilizer remaining in the spreader (about 1,992 lbs) so I applied the remaining fertilizer onto replications 1, 2, and 5, i.e. I did not change the setting on the fertilizer spreader and I went over reps 1, 2, and 5 for a third time. Replications 1, 2, and 5 had the lowest amount of P and K in the soil, i.e. the highest fertilizer recommendations was for reps 1, 2, and 5. Actual amounts applied to replications 1, 2, and 5 (7.5 acres, 3 ha) was 2,352 lbs (1,069 kg) of 0-46-0, 3,594 lbs (1,634 kg) of 0-0-62, and 30 lbs (13.64 kg) of boron. In replications 1, 2, and 5 the 314 lbs/A of 0-46-0 provided 144 lbs/A (161.7 kg/ha) of P2O5. The 479 lbs/A of 0-0-62 provided 297 lbs/A (333 kg/ha) of K2O. The 30 lbs of boron provided 4 lbs/A (4.5 kg/ha) of boron. Actual amounts applied to replications 3, 4, and 6 (7.5 acres, 3 ha) was 1,568 lbs (713 kg) of 0-46-0, 2,396 lbs (1,089 kg) of 0-0-62, and 20 lbs (9 kg) of boron. In replications 3, 4, and 6 the 209 lbs/A of 0-46-0 provided 96 lbs/A (107.8 kg/ha) of P2O5. The 319 lbs/A of 0-0-62 provided 198 lbs/A (222 kg/ha) of K2O. The 20 lbs of boron provided 2.6 lbs/A (2.99 kg/ha) of boron. |
| 2003-09-10 |
Fertilizer Application |
Applied fertilizer to main site treatment 6 replications 6, 5, 4, 3, 2, and 1. 0-46-0 fertilizer was applied at 170 lbs/A. 0-0-60 fertilizer was applied at 420 lbs/A. Boron was at 3.3 lbs/A. Fertilizer was blended together and applied using the JD 6400 with a pull type Willmar, 5 ton PTO driven spinner spreader. |
| 1997-06-12 |
Fertilizer Application |
Based on fall 1996 soil tests, fertilizers were broadcasted after first cutting at the following rates. Lime (IT/A) (350 lb/A pelleted Lime), 300 lb K as potash (K2O) (0-0-60), and 2 /b/A Boron (B). Replicates 4, 5, and 6 only. [T6] [Boron, K2O] |
| 1997-06-13 |
Fertilizer Application |
Based on fall 1996 soil tests, fertilizers were broadcasted after first cutting at the following rates. Lime (IT/A) (350 lb/A pelleted Lime), 300 lb K as potash (K2O) (0-0-60), and 2 /b/A Boron (B). Replicates 1, 2, and 3 only. [T6] [Boron, K2O] [T6] |
| 1996-06-13 |
Fertilizer Application |
Based on fall 1995 soil tests, K20 and Boron (B) was broadcast after first cutting was chopped. Fertilizers included 250 lb K/acre (280 kg K/ha) K20 as Potash (0-0-60) and Boron (B) at 2 lb B/acre (2.24 kg /ha). Both nutrients were premixed in a dry granular formulation. Replicates 1-6 [Boron, K2O] [T6] |
| 1991-06-07 |
Mechanical Weed Control |
Broadcasted 10” (25 cm) bands, (post-emergence) 0.5 pt/a (0.6 l/ha) Basagran, 0.25 pt/a (0.3 l/ha) Blazer 2L, 1 pt/a (1 l/ha) crop oil concentrate [T3, T4] |
| 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. |
| 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.
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| 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.
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| 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. |
| 2015-04-23 |
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.
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| 2021-04-22 |
Fertilizer Application |
Corn dry fertilizer spread with Newton Crouch pull behind. |
| 2017-04-12 |
Fertilizer Application |
Broadcast applied dry fertilizer to M1 field |
| 2019-06-19 |
Fertilizer Application |
Applied sidedress fertilizer using drop tubes from sprayer. |
| 2020-06-19 |
Fertilizer Application |
Applied sidedress fertilizer using drop tubes from liquid sprayer. Included 6 ounces per acre of Nitrain Express Nitrogen stabilizer. |
| 2019-06-19 |
Fertilizer Application |
Applied sidedress fertilizer with drop tubes from sprayer. |
| 2020-06-19 |
Fertilizer Application |
Applied sidedress fertilizer for L1 corn field using drop tubes from sprayer. Included Nitrain Express at 5 oz/A as a stabilizer. |