Narrative Agronomic Log — Resource Gradient Experiment
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
A narrative log of the agronomic operations performed on the Resource Gradient Experiment.
This datatable is part of the Agronomic Management of the Resource Gradient Experiment dataset.
A log of the agronomic management activities on the Resource Gradient Experiment. A “browsable” interface to the aglog is available at https://aglog.kbs.msu.edu; select “Resource Gradient” under the “Areas” tab.
Note
| Experiment: | Resource Gradient Experiment |
| Data available from: | May 2000 to July 2020 |
| Dataset: | KBS084 |
| Datatable ID: | KBS084-001.25 |
| Repository link: | http://doi.org/10.6073/pasta/a7fa8e36847074f2a7d7cb644360ed2f |
| Personnel: |
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| Last Updated | 2024-03-18 |
| Variate | Description | Units |
|---|---|---|
| obs date | observation date | |
| Comment | description of the agronomic operations performed | |
| author | author of this observation | |
| source | the aglog entry source |
| Protocols |
|---|
Data Excerpt
| obs_date | comment | author | source |
|---|---|---|---|
| 2025-12-02 | Total net gallons on the in line water meter reading to start the 2025 season (June 6, 2025): 6,309,110.0 gallons. Total net gallons on the in line water meter reading at the end of the 2025 growing season (December 2, 2025): 6,807,853.0 gallons. Total gallons of water used for the 2025 growing season, based on the in line water meter: 498,743.0 gallons. For the 2025 MSU Water Reporting Data spreadsheet we reported 551,000 gallons for the month of June from the KBS- FSC Main. How did we come up with the 551,000 gallons not the 498,743 gallons? 498,743 gallons + 61,335 gallons estimated gallons from the June 24, 2025 irrigation event, minus (-) the 9,100 gallons reported from the June 24th irrigation event (it was 9,700 gallons) but by memory though that it was 9,100 gallons so the 9,100 gallon amount was used, not the 9,700 gallons. 498,743 + 61,335 - 9,100 = 550,978, round to 551,000 gallons. We had one irrigation event on June 24, 2025 in which the in-line water meter 'froze up' or was not working correctly shortly after turning on this date, therefore the meter was not calculating gallons correctly. On June 24, 2025 the amount of water on the meter was 9,719.6 gallons of water applied at the time of the irrigation event. However, the average gallons per minute (as measure by the in-line water meter was 423 gallons per minute. The irrigation event on June 24, 2025 was ~ 145 minutes: 145 min * 423 gallons per minute = ~ 61,335 gallons for the irrigation event on June 24, 2025. Total hours on the Valley Linear Irrigation System at the start of the 2025 season: ~ 382.0; Total hours on the Valley Linear Irrigation System at the end of the 2025 season (December 2, 2025): 402.0; Total hours used on the Valley Linear Irrigation System for the 2025 growing season: 20 hours. | Joe Simmons | https://aglog.kbs.msu.edu/observations/6828 |
| 2025-10-13 | 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. | Ethan Rocklin | https://aglog.kbs.msu.edu/observations/6777 |
| 2025-08-08 | 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. | Ethan Rocklin | https://aglog.kbs.msu.edu/observations/6701 |
| 2025-08-04 | Baled the wheat straw from the LTER main plot T1 and T2 plots. Equipment used: JD 7520 tractor and Krone Baler, JD 7420b tractor to move bales to the trailer, Dodge 1 ton truck and trailer. Locations where the baler tied a knot and location of bales dropped from the baler were marked with John Deere GPS on the JD 7520 tractor. Grab samples were collect to put in dry to determine percent moisture in the wheat straw. Bales were picked up from the field and weighted on Tuesday August 5, 2025. | Joe Simmons | https://aglog.kbs.msu.edu/observations/6758 |
| 2025-08-01 | Raked the wheat straw up to get ready for baling in the LTER T1 and T2 plots. This helps to pick the straw up off the ground and flip it over so it dries better. Equipment: John Deere 5425 tractor and New Holland Rollabar 256 rake. Joe Simmons raked the straw in the Resource Gradient Irrigated and Non-Irrigated study areas. | Jarrod Rhoades | https://aglog.kbs.msu.edu/observations/6700 |