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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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: |
|
| 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 |
|---|---|---|---|
| 2025-03-27 | Sprayed Winter Wheat in LTER N-Rate study and T8nt plots (all reps) with Perfectmatch. This product has a 24 hour REI. Application lasted from 2:00 pm to 3:45 pm on Thursday, March 27. Safe Reentry at 3:45 pm on Friday, March 28. Perfectmatch was chosen for control of grasses in the winter wheat and enhanced control of broad leafs. See attached spray report for weather conditions and spray mix formulation. | Ethan Rocklin | https://aglog.kbs.msu.edu/observations/6508 |
| 2025-03-26 | Fertilized LTER Main Site treatment T1 plots (1,3,4,5, and 6), T2 plots (5,2,3,4,1 and 6), T3 plots (5,2,3,4,1 and 6), Resource Gradient and T8nt plots with Triple Super Phosphate (0-46-0) at 200 lb/A, providing 92 lbs of P2O5. T1 reps (1,3,4,5) and T2 reps (2,5) along with the Resource Gradient Experiment were applied 3/26/25. All other plots were applied on 3/27/25. Application was done at 3.8 mph in C2 with 1300 engine RPM. JD Dry rate controller CFR was .0155, density of TSP was 65 lbs/cubic ft. Gandy air fan was at 17 ounces per square inch. Weather conditions at 7:45 am 3/26/25. Temperature: 26.4°F Wind Speed (5 minute at 3m) : 1.93 mph Wind Direction: Northwest Relative Humidity: 76.8% Weather Conditions at 10:00 a.m on 3/27/25: Temperature: 45.1° F; Wind Speed (5 minute at 3m) : 8.08 mph Wind Direction: Southwest Relative Humidity: 57.6% | Jarrod Rhoades | https://aglog.kbs.msu.edu/observations/6509 |
| 2025-03-12 | Fertilized LTER Resource Gradient Experiment Winter Wheat with 95 lbs per acre of Ammonium Sulfate 21-0-0-24. This provided 20 lbs per acre of nitrogen and 23 lbs of sulfur per acre. F1 zero nitrogen plots were not fertilized but all other plots received the same rate. Weather at 10:30 a.m was: Temperature: 35.9°F Wind Speed: 11.93 mph Wind Direction: East Relative Humidity: 35.9% Soil Temperature: 32.4°F. | Jarrod Rhoades | https://aglog.kbs.msu.edu/observations/6500 |
| 2024-10-10 | Planted winter wheat in the Resource Gradient Experiment, both Irrigated and Rainfed plots. Wheat was also planted into the T8nt plots. Wheat variety: Pioneer 25R40 which is a soft red winter wheat, the seed was treated. Pioneer 25R40 (treated seed) had 10,500 seeds/lb (90% germ) planted at projected 134.5 lbs/A. Planting depth: 1-1.5”. Planted with JD 7420b tractor and JD 1590 no-till drill. Average planting speed was 4 mph. Seed drill was set to 44 using the second door notch, Seed rate was 1,412,250 seeds per acre. | Jarrod Rhoades | https://aglog.kbs.msu.edu/observations/6411 |
| 2024-10-07 | Harvested soybeans from the LTER Main Site N-rate Study (Resource Gradient, Irrigated). For each plot four rows of soybeans (5' wide) were harvested for yield using the Kincaid plot combine. Moisture content and weight were determined by using the on-board Mirus software, grain moisture was verified with the FSC Dickey John moisture tester. Grab samples of the grain from each plot was collect for the lab. Only Irrigated side harvested on 10/7/24. | Jarrod Rhoades | https://aglog.kbs.msu.edu/observations/6450 |