| 2020-05-23 |
Herbicide Application |
Sprayed LTER CE1, CE2 plots, T8nt plots, Irrigated and non irrigated fertility study, lysimeter field, GLBRC perimeter bait crop ( outside 30' on north edge, inside 30' on south and east edge) far east plot in rep 6, and G1 all replications (5, 4, 3, 2, 1) for pre-emergence weed control where corn was planted. Sprayed with Roundup Powermax at a rate of 1 qt/A , ammonium sulfate at 3.4 lbs/A and Acuron at 3 qts/A. Weather conditions at the start 8:50 a.m. were cloudy/ fog, 59.4degrees F, 98.9% humidity with 1-2 mph south east winds. Conditions at the end 11:45 a.m. were partly cloudy, 70.2 degrees F, 68.9 % humidity, and 6-7 mph winds out of the south east. |
| 2021-06-10 |
Herbicide Application |
Sprayed LTER main site CE corn plots (105, 108, 202, 207, 301, 304, 401, and 403).
Sprayed with Roundup Powermax at 44 ounces/acre, Acuron at 88 ounces/ acre, and Ammonium Sulfate at 2.4lbs/acre, and a small amount of de-foaming agent.
Rate of spray was 20gal/acre on JD rate controller.
Weather conditions at the beginning 10:00am: 78.3 degrees F, 3.9mph southeast wind, 79.9% relative humidity, and partly cloudy.
Weather conditions at the end 12:00pm: 82.4 degrees F, 6.34mph southeast wind, 62.6% relative humidity, and partly sunny.
REI: 24 hours. |
| 2021-05-25 |
Herbicide Application |
Sprayed G1 all replications (5, 4, 2, 3, 1) for pre-emergence weed control where corn was planted.
Sprayed with Roundup Powermax at a rate of 53 oz/A, ammonium sulfate at 3.4 lbs/A, and Acuron at 3 qts/A.
Weather conditions at the start 12:00 noon were mostly sunny, 82.9 degrees F, 45.3% humidity with 9.3 mph southwest winds.
Conditions at the end 1:00 p.m. were mostly sunny, 84.6 degrees F, 39.2 % humidity, and 8.5 mph winds out of the southwest.
GLBRC perimeter bait crop ( outside 30' on north edge, inside 30' on south and east edge) far east plot in rep 6, and G1 all replications (5, 4, 3, 2, 1) for pre-emergence weed control where corn was planted. Sprayed with Roundup Powermax at a rate of 1 qt/A , ammonium sulfate at 3.4 lbs/A and Acuron at 3 qts/A. |
| 2023-05-18 |
Herbicide Application |
Burn down and residual herbicide applied to corn. Wind 6mph from SE, 69 F. 24hr REI ends 5/19 7pm. |
| 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%
|
| 2024-05-23 |
Herbicide Application |
Sprayed GLBRC G1, G2 and G3 plots (all Reps) with herbicide tank mix containing Dual II Magnum and Acuron.
G3 Soybeans (reps 2, 3, 5, 4, and 1) sprayed with tank mix of Liberty at 32 oz/A and Dual II Magnum at 1.33 pints/A.
G2 Sorghum (1, 4, 5, 2, and 3) sprayed with tank mix of Liberty at 32 oz/A, Dual II Magnum at 1.33 pints/A, and Atrazine at 1 quart/A.
G1 Corn (1, 5, 4, 2, and 3) sprayed with tank mix of Liberty at 32 oz/A, Dual II Magnum at 1.33 pints/A, Atrazine at 1 quart/A, and Acuron at 2.5 quarts/A.
REI is 24 hours. Safe Reentry on Friday May 24 at 7:00 PM.
Application began at 3:00 pm and concluded at 7:00 pm.
Weather conditions at 3:00 pm:
75.5°F
Wind: 6.72 mph from West
29.0% RH
Weather conditions at 7:00 pm
75.5°F
Wind: 5.78 mph from Northwest
26.7% RH |
| 2024-05-17 |
Herbicide Application |
Spray residual herbicide on open pollenated corn. Glyphosate was only used on A3e. Wind 4.4 mph from SW, 68F. |
| 2025-04-30 |
Herbicide Application |
Apply herbicide to corn. For swine manure and rotation plots the Acuron concentrate was not properly agitated before measuring. |
| 2025-04-30 |
Herbicide Application |
Apply burn down herbicide ahead of corn planting. |
| 2025-05-27 |
Herbicide Application |
Apply herbicide to corn. No glyphosate was used in B1 because a few corn plants were starting to emerge. |
| 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. |
| 2025-06-13 |
Herbicide Application |
Apply herbicide to weeds in corn. |
| 2026-05-27 |
Herbicide Application |
Sprayed LTER T1 (reps 2, 3, 4, 1, 5, and 6) with tank mix of Acuron (3 qt/A) and Roundup Powermax 3 (21.3 fl oz/A).
REI is 24 hours.
Spraying occurred 2:35 pm to 4:40 pm. Safe re-entry for at 4:40 pm on Thursday 5/28/26.
See attached for weather data.
|
| 2026-05-28 |
Herbicide Application |
Sprayed tank mix of Acuron (3 qt/A), Roundup PowerMax3 (30 fl oz/A), and Liberty (30 fl oz/A) on GLBRC G1 and Bait Crop corn (all reps).
Application occurred from 12:15 pm to 1:05 pm, REI for tank mix is 24 hours. Safe Re-entry on Friday 5/29/26 at 1:05 pm.
See attached for weather data. |
| 2026-06-01 |
Herbicide Application |
Sprayed LTER Lysimeter Field (corn only) and CE Study with tank mix of Acuron (3qt/A) and Roundup (21.3 fl oz/A).
Application done on pre-emergent corn. Entire CE Study area was sprayed East to West.
Application occurred from 2:30 pm to 3:30 pm.
REI of mix is 24 hours. Safe re-entry on Tuesday 6/2/26 at 3:30 pm.
See attached for weather data. |
| 2026-05-29 |
Herbicide Application |
Apply herbicide to weeds in corn. Wind 3.4 mph from W, 71.9F. |
| 2026-06-04 |
Herbicide Application |
Apply herbicide to weeds in corn. Wind 9.7 mph from SE, 84.6F. |
| 2026-05-14 |
Planting |
Apply herbicide to corn. Only the south end of 27-2-3 was treated. B2-E also received 15 gallons per acre of starter fertilizer (contains 2.2-1.1-0.36 pounds per gallon). |
| 2026-05-27 |
Herbicide Application |
Sprayed LTER T2 (reps 2, 3, 4, 1, 6, and 5) with tank mix of Acuron (3 qt/A) and Roundup Powermax 3 (29.8 fl oz/A)
REI is 24 hours.
Spraying occurred 10:15 am to 2:30 pm. Safe re-entry for at 2:30 pm on Thursday 5/28/26.
See attached for weather data. |
| 2026-05-28 |
Herbicide Application |
Sprayed tank mix of Acuron (3 qt/A), Roundup PowerMax3 (30 fl oz/A), and Liberty (30 fl oz/A) on N-Rate Study corn and T8nt corn (all reps).
Application occurred from 10:05 am to 11:05 am, REI for tank mix is 24 hours.
Safe Re-entry on Friday 5/29/26 at 11:05 am.
See attached for weather data. |
| 2026-05-20 |
Herbicide Application |
Apply herbicide to weeds in corn. Wind 6.2 mph from NW, 56.8F. |