| 2023-05-15 |
Herbicide Application |
Herbicide application to T2 plots (reps 5, 3, 1, 4, 6, 2).
Round Up Powermax 3 was applied 40 oz per acre , and Ammonium Sulfate at 3.4 lbs per acre were applied as a burndown, per-emergence.
REI 12 hours.
Sprayer ran out of product in T2R2 with 2 passes left on West side of plot |
| 2023-05-16 |
Herbicide Application |
Herbicide application to Resource Gradient Study and GLBRC G1 Plots, and Bait Crop area.
Round Up PowerMAX 3 at 40 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied as a burndown.
Rate of spray was 20gal/acre on JD rate controller.
Weather conditions at 8:15 am:
Temperature: 50.9°F
Wind Speed: 3.3 mph
Wind Direction: Southwest
Relative Humidity: 43.5%
Weather conditions at 1:15 pm:
Temperature: 72.8°F
Wind Speed: 8.9 mph
Wind Direction: Northwest
Relative Humidity: 31.5%
|
| 2023-05-17 |
Herbicide Application |
Herbicide application to T8 NT, CE study Corn and Soybean plots(CE1, CE2, and CE3), Lysimeter Field, and T1 REX plots.
Roundup PowerMAX 3 applied at 40 oz per acre with AMS at 3.8 lbs per acre.
REX plots in T1R1, R2, R3 and R4 were sprayed only over the REX footprint. They were covered with two headland passes, one from each North and South. Additionally Reps 1, 2, and 4 received a perpendicular pass at the plot edge to kill weeds near the data loggers.
Application began at 8:40 am and concluded at 1:30 pm.
Weather conditions at 8:30 am:
Temperature: 48.6°F
Wind Speed: 5.65 mph
Wind Direction: East
Relative Humidity: 62.4%
Weather conditions at 1:45 pm:
Temperature: 59.3°F
Wind Speed: 7.05 mph
Wind Direction: Northeast
Relative Humidity: 40.6%
|
| 2023-05-31 |
Herbicide Application |
Sprayed T2 all replications (6, 1, 4, 3, 2, and 5) for pre-emergence weed control where corn was planted.
Sprayed with Roundup PowerMax 3 at a rate of 21.5 oz/A, ammonium sulfate at 1.7 lbs/A, and Acuron at 2.5 qts/A.
REI is 24 hours, safe re-entry 2:00 PM 6/1/23
Ran out of product in T2R5, short a pass and half along the west edge of the plot. The plot was finished later in the day while spraying T1 plots.
Application began at 9:00 am and concluded at 2:00 pm.
Weather conditions at 9:00 am were:
Temperature: 74.1°F
Wind Direction: Southeast
Wind Speed: 3.7 MPH
Relative Humidity: 66.7%
Weather conditions at 2:00 pm were:
Temperature: 86.3°F
Wind Direction: Southeast
Wind Speed: 6.6 MPH
Relative Humidity: 32.1% |
| 2023-05-31 |
Herbicide Application |
Sprayed T1 all replications (5, 1, 4, 2, 3, and 6) for pre-emergence weed control where corn was planted.
Sprayed with Roundup Powermax 3 at a rate of 22 oz/A, ammonium sulfate at 1.7 lbs/A, and Acuron at 2.5 qts/A.
REI is 24 hours, safe re-entry 7:00 PM 6/1/23
Began application by finishing remaining passes in T2R5.
Ran out of product in T1R6, short last pass on West edge of plot.
Application began at 3:45 pm and concluded at 7:00 pm.
Weather conditions at 3:45 pm were:
Temperature: 87.6°F
Wind Direction: South
Wind Speed: 7.3 MPH
Relative Humidity: 26.2%
Weather conditions at 7:00 pm were:
Temperature: 88.3°F
Wind Direction: Southeast
Wind Speed: 5.1 MPH
Relative Humidity: 29.0% |
| 2023-06-01 |
Herbicide Application |
Sprayed LTER Resource Gradient (Rainfed and Irrigated), GLBRC G1 all reps (1, 4, 5, 2, and 3), T8nt all reps, GLBRC Bait Crop corn, CE Study Corn (CE1 and CE3), and currently planted area of the Lysimeter field for pre-emergence weed control where corn was planted.
Sprayed with Roundup PowerMax 3 at a rate of 22 oz/A, ammonium sulfate at 1.7 lbs/A, and Acuron at 2.5 qts/A.
Application began at 11:30 am and concluded at 5:05 pm.
REI is 24 hours, safe re-entry time is 5:05pm Friday 6/2/23
safe re-entry by treatment:
Resource Gradient: 12:55 pm Friday 6/2/23
CE Study corn: 1:25 pm Friday 6/2/23
GLBRC G1: 3:05 pm Friday 6/2/23
Lysimeter field corn: 4:50pm Friday 6/2/23
GLBRC Bait Crop corn: 5:05pm Friday 6/2/23
Weather conditions at 11:30 am:
Temperature: 83.7°F
Wind Direction: East
Wind Speed: 3.01 mph
Relative Humidity: 46.9%
Weather conditions at 5:05 am:
Temperature: 88.4°F
Wind Direction: Southeast
Wind Speed: 6.14 mph
Relative Humidity: 31.8%
|
| 2023-06-29 |
Herbicide Application |
Herbicide application to T1 plots (reps 3, 4, 5, 1, 2, 6).
RoundUp Power Max 3 at 30 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied post-emergence to control grass weeds.
Application began at 11:45 am and concluded at 4:00 pm.
Rate of spray was 20gal/acre on JD rate controller.
John Deere 7420b tractor was used instead of 5220 due to concerns over the current height of the corn.
REI is 4 hours, safe re-entry on Thursday June 29 at 8:00 pm.
Weather conditions at 11:45 am:
Temperature: 78.2°F
Wind Direction: Southeast
Wind Speed: 8.85 mph
Relative Humidity: 61%
Weather conditions at 4:00 pm:
Temperature: 84.0°F
Wind Direction: South
Wind Speed: 8.42 mph
Relative Humidity: 55.9% |
| 2023-06-30 |
Herbicide Application |
Herbicide application to T3 (5, 4, 2, 1, 3, 6) and T2 plots (2, 5, 1, 4, 3, 6)
RoundUp Power Max 3 at 30 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied post-emergence to control grass weeds.
Application in T3 began at 7:30 am and concluded at 10:40 am.
Application in T2 began at 12:30 pm and conduced at 4:00 pm.
Rate of spray was 20gal/acre on JD rate controller.
John Deere 7420b tractor was used instead of 5220 due to concerns over the current height of the corn.
REI is 4 hours, safe re-entry on Friday June 30 at 8:00 pm.
Weather at 1:10 pm:
Temperature: 69.6°F
Wind Direction: West
Wind Speed: 3.53 mph
Relative Humidity: 98.7%
Weather at 4:00 pm:
Temperature: 86.5°F
Wind Direction: West
Wind Speed: 6.12 mph
Relative Humidity: 52.2% |
| 2023-07-03 |
Herbicide Application |
Herbicide application to GLBRC G1 all reps(1, 2, 4, 5, 3), Bait Crop area (corn and soybean), LTER T8nt plots, LTER CE Study corn (CE1 and CE3), and planted area of the Lysimeter field.
RoundUp Power Max 3 at 30 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied post-emergence to control grass weeds.
Application in the GLBRC began at 10:15 am and concluded in LTER at 12:45 pm.
Rate of spray was 20gal/acre on JD rate controller.
John Deere 7420b tractor was used instead of 5220 due to concerns over the current height of the corn.
REI is 4 hours, safe re-entry on Monday July 3 at 4:45 pm.
Weather at 10:15 am:
Temperature: 70.8°F
Wind Direction: Northeast
Wind Speed: 5.98 mph
Relative Humidity: 90.6%
Weather at 12:45 pm:
Temperature: 76.5°F
Wind Direction: Northwest
Wind Speed: 3.83 mph
Relative Humidity: 73.0% |
| 2023-07-06 |
Herbicide Application |
Sprayed G2 plots (reps 3, 2, 1, 4, 5), Bait Crop and CE Study CE2 (112, 210, 312, 402) plots with Enlist One and Roundup.
REI 48 Hours Safe Re-entry on 7/8 at 5:30 PM
Tank mix of Enlist One (2-4D) at 2 pints per acre and Roundup PowerMax 3 (Glyphosate) at 22 oz per acre were applied. |
| 2023-07-07 |
Herbicide Application |
Sprayed Brown house Field and GLBRC Bait Crop with Enlist one and Roundup PowerMax 3 tank mix.
Round up PowerMax 3 was applied at 22 ounces per acre. Enlist one was applied at 2 pints per acre. There was also Ammonium Sulfate at 17 lbs per 100 gallon of water. It was applied at 20 gallon per acre.
REI 48 hours safe re-entry 7/9/23 at 4:30 pm.
Weather at 4:20 p.m
Temperature: 80.4 degrees
Wind speed 5 min average at 3 meters: 5.47 mph
Maximum Gust at 10 meters: 7.8 mph
Wind direction: West
Relative Humidity: 36.1% |
| 2023-08-31 |
Herbicide Application |
Herbicide application to GLBRC G2 (reps 3, 2, 5, 4, 1), Bait Crop area (soybean), and brown house field, LTER CE Study soybeans CE2 (112, 210, 312, 402), and unplanted area of the Lysimeter field.
RoundUp PowerMax 3 at 38.5 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied post-emergence to control grass weeds.
Rate of spray was 20gal/acre on JD rate controller.
REI is 4 hours, safe re-entry on Thursday 8/31/23 at 8:00 PM
Weather at 10:50 am:
Temperature: 63.1°F
Wind Direction: East
Wind Velocity (3m average): 4.31 mph
Relative Humidity: 61.2%
Weather at 4:00 pm:
Temperature: 73.6°F
Wind Direction: East
Wind Velocity (3m average): 2.43 mph
Relative Humidity: 30.8% |
| 2024-04-26 |
Herbicide Application |
Herbicide application to T2R1 (remainder of plot), LTER N-Rate Study, T8nt plots (reps 1, 2, 3, 4), CE Study corn and soybeans (CE 1, 2, and 3)
RoundUp Power Max 3 at 44 oz per acre and Ammonium Sulfate at 40 lbs per 200 gal were applied pre-plant as a burndown.
Application in T2R1 began at 9:00 am and conduced in the Lysimeter field at 12:15.
Rate of spray was 20gal/acre on JD rate controller.
REI is 4 hours, safe re-entry on Friday April 26 at 4:15 pm.
Weather at 9:00 am:
Temperature: 46.0°F
Wind Direction: Southeast
Wind Speed: 9.27 mph
Relative Humidity: 64.0%
Weather at 12:15:
Temperature: 56.0°F
Wind Direction: Southeast
Wind Speed: 10.87 mph
Relative Humidity: 40.6%
|
| 2024-05-17 |
Herbicide Application |
Herbicide application to T2 plots (5, 3, 2, 6, 1, and 4) and LTER N-Rate Study.
A tank mix of Dual II Magnum at 1.33 pint per acre and RoundUp Power Max 3 at 22 oz per acre in T2 and 32 oz per acre in the N-Rate and Ammonium Sulfate at 3.4 lbs per acre were applied pre emergence to control grass weeds.
Application in T2 began at 10:00 am and concluded at 2:00 pm.
Application in LTER N-Rate Study began at 3:00 pm and conduced at 4:45 pm.
Rate of spray was 20gal/acre on JD rate controller.
REI is 24 hours, safe re-entry on Saturday May 18 at 4:45 PM.
Weather at 10:00 am:
Temperature: 68.0°F
Wind Direction: Southwest
Wind Speed: 4.38 mph
Relative Humidity: 87.1%
Weather at 4:45 pm:
Temperature: 77.1°F
Wind Direction: West
Wind Speed: 5.43 mph
Relative Humidity: 55.4% |
| 2024-05-17 |
Herbicide Application |
Herbicide application to GLBRC Bait Crop, Rep 6, and Brown House field.
A tank mix of Dual II Magnum at 1.33 pint per acre and RoundUp Power Max 3 at 32 oz per acre and Ammonium Sulfate at 3.4 lbs per acre were applied pre emergence to control grass weeds.
Application in 5:00 pm and concluded at 7:00 pm.
Rate of spray was 20gal/acre on JD rate controller.
REI is 24 hours, safe re-entry on Saturday May 18 at 7:00 PM.
|
| 2024-06-20 |
Herbicide Application |
Sprayed Roundup in GLBRC G1 (reps 1, 4, 2, 3, and 5) and G3 plots (reps 2, 1, 3, 5, and 4), and bait crop, Brown house field.
G1 plots were sprayed with Roundup PowerMax 3 at 22 oz/A. For the remainder the tank was spiked to reach a 30 oz/A rate.
Spraying ended at 4:15 pm on 6/20/24.
REI is 4 hours safe re-entry at 8:15 pm on 6/20/24 |
| 2024-06-21 |
Herbicide Application |
Sprayed LTER T2 plots (reps 5, 6, 2, 4, 3, and 1) with tank mix of Enlist One and Roundup PowerMax 3.
Enlist One was sprayed at 2 pints/ A and Roundup PowerMax 3 was sprayed at 21.3 oz/A.
Re-entry interval for Enlist One is 48 hours.
Safe Re-entry on Sunday June 23, 2024 at 12:45 PM. |
| 2024-06-24 |
Herbicide Application |
Sprayed LTER T1 plots with Round Up Power max 3.
The 38 Ounce higher rate was because the weeds were taller.
The REI is 4 hours so plots can be entered at 7:30 p.m. |
| 2024-06-24 |
Herbicide Application |
Sprayed LTER T3 plots (6, 3, 1, 2, 4, and 5) with Round Up Power max 3.
Rate was 30 oz/A in post emergence soybeans.
The REI is 4 hours
Safe for re-entry at 10:00 pm |
| 2024-07-18 |
Herbicide Application |
Applied Glyphosate (Roundup PowerMAX 3) plus AMS at 17 lbs/100 gal to soybeans to control weeds and kill switchgrass |
| 2024-07-18 |
Herbicide Application |
Applied glyphosate (Roundup PowerMAX 3) @ 40 oz/a plus AMS @ 17 lb/100 gal to BCSE trap crop areas to control weeds in soybeans. |
| 2024-07-18 |
Herbicide Application |
Applied Glyphosate (Roundup PowerMAX 3) plus AMS at 17 lbs/100 gal to soybeans to control weeds and kill switchgrass |
| 2024-08-13 |
Herbicide Application |
Sprayed tank mix of RoundUp Power Max 3 at 38.4 oz/A and Liberty at 35.5 oz/A on Lysimeter field, CE1, CE2, CE3 plots, and GLBRC Rep 6 #6 plot.
Sprayed T8nt with RoundUp Power Max 3 only.
REI for Liberty is 12 hrs. Safe re-entry on Tuesday August 13 at 3:00 am. |
| 2024-04-25 |
Herbicide Application |
Herbicide application to T2 plots (6, 5, 2, 3, 4, and 1)
RoundUp Power Max 3 at 34 oz per acre and Ammonium Sulfate at 7 lbs per 300 gal were applied pre-plant as a burndown.
Application in T2 began at 4:45 pm and conduced at 7:30 pm.
Rate of spray was 20gal/acre on JD rate controller.
REI is 4 hours, safe re-entry on Thursday April 25 at 11:30 pm.
Weather at 4:44 pm:
Temperature: 55.5°F
Wind Direction: South
Wind Speed: 4.7 mph
Relative Humidity: 22.4%
Weather at 7:30 pm:
Temperature: 55.2°F
Wind Direction: East
Wind Speed: 7.0 mph
Relative Humidity: 22.3% |
| 2025-05-12 |
Herbicide Application |
Sprayed Roundup Powermax 3 as burndown at 43 oz/A, and ammonium sulfate at 17 lbs / 100 gallons.
Locations sprayed: LTER Lysimeter field, GLBRC G1, G2, G3 plots, Rep 6 plots with annual crops, N-Rate Sorghum (South), North Bait Crop.
Application began at 10:45 am and concluded at 2:45 pm.
REI for Roundup is 4 hours, safe reentry on Monday May 12 2025 at 6:45 pm.
Weather conditions at 10:30 am:
Temperature: 61°F
Wind Speed: 4 mph
Wind Direction: East
RH: 51.5%
Weather conditions at 2:45 pm:
Temperate: 82°F
Wind Speed: 9 mph
Wind Direction: South East
RH: 24% |
| 2025-05-30 |
Herbicide Application |
Spray herbicide on G3 Sorghum plots (reps 4, 1, 2, 3, 5) and GLBRC Sorghum N-Rate South. And LTER lysimeter field, (only where corn is planted) and GLBRC G1 Corn
Tank mix of Roundup PowerMax 3 at 30 oz/A, Dual II Magnum at 1.33 pt/A and Atrazine 4L at 1 qt/A applied to sorghum per-emergence.
Tank mix of Roundup PowerMax 3 at 30 oz/A, Dual II Magnum at 1.33 pt/A and Acuron at 3 qt/A applied post-emergence to corn.
This was done in two separate mixes, no acuron was applied to sorghum.
For weather data see attached. |
| 2025-07-02 |
Herbicide Application |
Sprayed LTER Lysimeter Field, GLBRC G2 Soybeans, & G1 Corn (perimeter of plots) with Roundup PowerMax 3 at 30 oz/A.
REI of Roundup PowerMax 3 is four hours.
Spraying began at 2:45 pm and concluded at 4:05 pm.
Safe reentry on Wednesday July 2nd at 8:05 pm. |
| 2025-07-02 |
Herbicide Application |
Sprayed LTER Lysimeter Field, GLBRC G2 Soybeans, & G1 Corn (perimeter of plots) with Roundup PowerMax 3 at 30 oz/A.
REI of Roundup PowerMax 3 is four hours.
Spraying began at 2:45 pm and concluded at 4:05 pm.
Safe reentry on Wednesday July 2nd at 8:05 pm. |
| 2025-08-08 |
Herbicide Application |
Sprayed LTER N-Rate (Irrigated and rainfed) and LTER Lysimeter field with RoundUp PowerMax 3 at 40 oz/A. Application done post harvest as a general burndown.
Application began at 12:00 pm and concluded at 1:30 pm.
REI is 4 hours, safe reentry at 5:30 pm on Friday August 8, 2025.
See attached spray report for weather data. |
| 2025-08-13 |
Herbicide Application |
Sprayed LTER T3 plots (reps 4, 2, 1, 5, 3, and 6) and LTER T8nt plots with Roundup PowerMax 3 at 40 oz/A.
The West Side of T3R6 was overlooked during the initial application and had to be sprayed later on 8/21. Additional spray report attached.
Application done as burn-down after wheat harvest, some broad leaf weeds may have been too big for chemical control. Plots may need to be mowed later.
Prairie strips in T3 plots were avoided.
Application began at 12:45 pm and concluded at 3:05 pm.
REI is 4 hours, safe reentry at 7:05 on Wednesday August 13, 2025.
For weather conditions see attached. |
| 2025-08-14 |
Herbicide Application |
Sprayed LTER T2 (reps 5, 2, 6, 1, 4, and 3) and T1 plots (reps 5, 1, 4 2, 3, and 6)with Roundup PowerMax 3 at 40 oz/A.
Application done as burn-down after wheat harvest.
Application began at 10:15 am and concluded at 4:00 pm.
REI is 4 hours, safe reentry at 8:00 on Thursday August 14 2025.
For weather conditions see attached. |
| 2025-08-15 |
Herbicide Application |
Sprayed GLBRC G2 plot PERIMETERS (reps 3, 1, 2, 5, and 4), Bait Crop, and Brown House field with Roundup PowerMax 3 at 40 fl oz/A.
Spraying began at 10:30 am and concluded at 12:30 pm.
REI is four hours, safe reentry at 4:30 on Friday August 15 2025.
G2 soybean plots sprayed as post emergence, only one boom section sprayed around the entire plot perimeter.
For weather data see attached. |
| 2025-10-13 |
Herbicide Application |
Sprayed LTER T2 (5, 2, 3, 4, 6, and 1), N-Rate Study, and T8nt (all reps) with tank mix of 2-4D (LO-VOL 6) and Round up PowerMax 3.
REI for 2-4D is 12 hours. Safe Reentry at 5:00 AM on Tuesday October 14.
See attached for weather data.
|
| 2025-10-14 |
Herbicide Application |
Sprayed LTER T1 (5,1,4,2,3 and 6) with tank mix of 2-4D (LO-VOL 6) and Round up PowerMax 3.
REI for 2-4D is 12 hours. Safe Reentry at 3:45 AM on Wednesday October 15.
See attached for weather data. |
| 2025-10-24 |
Herbicide Application |
Sprayed GLBRC Switchgrass Biodiversity Experiment (formerly Interaction plots) with tank mix of 6L 2-4D at 1 qt/A and Roundup PowerMax 3 at 40 fl oz/A.
REI of tank mix is 12 hours, spraying concluded at 12:15 pm on 10/24/25.
Safe re-entry on Saturday October 25 at 12:15 AM.
Due to the height of the boom anti-drift agent was used, standing switchgrass was approximately 3-5 feet tall. Also included was Non-Ionic Surfactant (NIS), to help spray solution adhere to plant leaves.
Monolith lysimeters areas were sprayed over, but not driven through. The monolith lysimeters had plastic placed over them so as to not have the area within the lysimeter frames sprayed.
The intact Mesocosm located in the 15 feet on the west edge of plots 6 and 8 were NOT sprayed. The entire 15 ft for the entire length of plots 6 & 8 were not sprayed.
See attached for weather data. |