Narrative Agronomic Log

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 done on the Resource Gradient Experiment.

This datatable is part of the Resource Gradient Study Management dataset. The log of the resource gradient study agronomic management. A “browsable” interface to the aglog is available at https://aglog.kbs.msu.edu

Note

Experiment: Resource Gradient Experiment
Data available from: May 2000 to July 2020
Dataset: KBS084
Datatable ID: KBS084-001.22
Repository link: http://doi.org/10.6073/pasta/a7fa8e36847074f2a7d7cb644360ed2f
Personnel:
Last Updated 2020-07-10
Variate Description Units
obs date observation date
Comment description of the agronomic operations performed
author author of this observation
source the aglog entry source

Data Excerpt

obs_date comment author source
2022-03-21 Fertilized LTER winter wheat N-Rate Study treatments 2-9. Plots were fertilized with 28% U.A.N. nitrogen fertilizer at the following rates. F1 at 0 gal/A =0 lb N, F2 at 6.7 gal/A = 20 lb N, F3 at 13.4 gal/A = 40 lb N, F4 to F9 at 20.1 gal/A = 60 lb N, Applied with Top Air Sprayer equipped with chafer streamer bars with 1.0 orifice. Do to low volume only half the boom was on and every 15 foot plot was covered individually. Conditions starting at 1 p.m. clear, 62.2 degrees F 39.9% humidity 8-9 mph Southeast winds. Conditions at the end were 69.9 degrees F 29.3% humidity 5-10 mph Northwest winds. Application was completed using the John Deere 7420b Tractor and the Top Air 30ft sprayer. Leon Thelen https://aglog.kbs.msu.edu/observations/5324
2022-03-10 Wheat top dress with steam bar nozzles. 28F-34F wind out of the west at 5 mph. Tyson Robbins https://aglog.kbs.msu.edu/observations/5313
2021-11-07 Planted winter wheat in The Resource Gradient Experiment. Wheat variety: Pioneer 25R40 which is a soft red winter wheat, the seed was treated. Pioneer 25R40 (treated seed) had 11,000 seeds/lb (90% germ) planted at 164.74 lbs/A. Planted with JD 7420b tractor and JD 1590 no-till drill. Average planting speed was 4.5 mph. Seed drill was set to 41 using the second door notch, Seed rate was 1,812,140 seeds per acre. Depth was set to 1" but drill down pressure was not maintained in the plot. Actual seed depth varied from .25" to 1" Leon Thelen https://aglog.kbs.msu.edu/observations/5288
2021-09-13 Irrigated soybeans in the LTER Irrigated Resource Gradient Experiment (Irrigated N-rate Study). Equipment used: Valley 8000 Linear Irrigation System. Amount of water applied: 0.6 inch of water was applied (as measured by six rain gauges). Irrigation system delay setting: 36; Irrigation pressure: 23 psi; Pressure at the pump: 50 psi. Time of application was between 1:05 p.m. - 2:25 p.m. Weather conditions at the start (weather update at 12:50 p.m.): mostly cloudy, 69.7 degrees F, wind 1-8 mph (3m high 5 minute average wind speed was 1.00 mph) from the northeast, relative humidity 89.1%. Weather conditions at the end (weather update at 2:25 p.m.): mostly cloudy, 69.4 degrees F, wind 5-15 mph (3m high 5 minute average wind speed was 7.36 mph) from the east, relative humidity 83.2%. Total gallon of water used in this irrigation event (as measure by a in-line water meter): 33,633.8 gallons. Water meter to start: 4314235.0; Water meter to end: 4347868.8; Average gallons per minute (on the water meter) during the irrigation event: 426 gallons per minute. Joe Simmons https://aglog.kbs.msu.edu/observations/5219
2021-09-09 Irrigated soybeans in the LTER Irrigated Resource Gradient Experiment (Irrigated N-rate Study). Equipment used: Valley 8000 Linear Irrigation System. Amount of water applied: 0.80 inch of water was applied (as measured by six rain gauges). Irrigation system delay setting: 22; Irrigation pressure: 23 psi; Pressure at the pump: 50 psi. Time of application was between 9:55 p.m. - 11:40 p.m. Weather conditions at the start (weather update at 9:30 a.m.): Partly sunny, 61.1 degrees F, wind 3-4 mph (3m high 5 minute average wind speed was 3.28 mph) from the northwest, relative humidity 86%. Weather conditions at the end (weather update at 11:40 a.m.): sunny, 65.8 degrees F, wind 6-10 mph (3m high 5 minute average wind speed was 8.29 mph) from the northwest, relative humidity 61.2%. Total gallon of water used in this irrigation event (as measure by a in-line water meter): 45,634.9 gallons. Water meter to start: 4144174.0.0; Water meter to end: 4189808.9; Average gallons per minute (on the water meter) during the irrigation event: 424 gallons per minute. Leon Thelen https://aglog.kbs.msu.edu/observations/5203
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