Narrative Agronomic Field Log — Cellulosic Biofuel Diversity 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 of agronomic activities on the Cellulosic Biofuels Biodiversity Experiment.

This datatable is part of the Cellulosic Biofuels Diversity Experiment dataset. The Cellulosic Biofuels Diversity Experiment is an additional long-term study located within the LTER Main Site complex, in which a series of 12 different cropping systems vary in species makeup and nitrogen input. Treatments include continuous corn, corn-soybean, two variations of switchgrass fertilized differently, a C3 – C4 grass mix, and prairie grasses native to Michigan with different numbers of species. Switchgrass varieties are Cave-in rock (commercial non-native) and Southlow commercial native). Prairie grasses include switchgrass (Panicum virgatum), big bluestem (Andropogon gerardii), little bluestem (Schizachyrium scoparium), and Indian grass (Sorghastrum nutans),

Treatment plots are 9.1 by 27m (30 × 40 feet) replicated in each of 4 randomized blocks. The study site was established in 2008. Click on the image for a printable map of the study area.

Note

Experiment: Cellulosic Biofuel Diversity Experiment
Data available from: September 2006 to November 2019
Dataset: KBS083
Datatable ID: KBS083-002.43
Repository link: http://doi.org/10.6073/pasta/ca82eec075094e4b9e8fc33b1b92e0b5
Related Tables:
Personnel:
Last Updated 2020-07-10
Variate Description Units
Obs date observation date
Comment description of the agronomic practice
Author author of the observation

Data Excerpt

obs_date comment author
2022-08-09 Herbicide application to soybeans in GLBRC Bait Crop and Brown House fields, GLBRC Rep 6, the perimeter of GLBRC G3 plots, and, LTER Cellulosic Biofuel Diversity Study soybeans. G3 plots, all reps, received one 10 foot headland pass around the entire perimeter of the plots, this was done to reduce the pressure of encroaching weeds from the alleyways. Applied Interline (Generic Liberty) at 29 oz/acre, Ammonium Sulfate at 3.4 lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 10:00pm: 67.7 degrees F, 1 mph North wind, 75.2% relative humidity, and partly cloudy. Weather conditions at the end 4:00 pm: 73.3 degrees F, 1 mph North wind, 58.9% relative humidity, and mostly sunny. REI: 12 hours. Application was completed using the 30ft top air sprayer and the John Deere 7420B tractor. Ethan Rocklin
2022-07-09 Applied Herbicide to the GLBRC G1 plots and Rep 6 corn. The border of each plot was sprayed with RoundUp Powermax at 32 oz/A and 3 lb/A AMS. The LTER CE 1 and CE2 were sprayed at the same rate. Weather conditions at the beginning 2:30pm: 80.9 degrees F, 1.42 mph Southwest wind, 65% relative humidity, and mostly sunny. Weather conditions at the end 4:30 pm: 80 degrees F, 1.4 mph northwest wind, 61% relative humidity, and mostly sunny. REI 4 HRS Application was completed using the 30ft top air sprayer and the John Deere 7420 B tractor. Leon Thelen
2022-07-07 Sprayed GLBRC main site G3 Reps 4,5,3,2, and 1 as well as Rep 6 / Bait Crop soybeans. LTER CE study 105, 207, 301, and 403 were also sprayed. Application of Enlist at 2 pints/acre, Interline (Generic Liberty) at 2 pints/acre, Ammonium Sulfate at 3lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 12:50pm: 78.3 degrees F, 2.93 mph northwest wind, 65.3% relative humidity, and partly cloudy. Weather conditions at the end 3:00 pm: 83 degrees F, 2.65 mph northwest wind, 56.1% relative humidity, and partly cloudy. REI: 48 hours. Application was completed using the 30ft top air sprayer and the John Deere 5220 tractor. Leon Thelen
2022-06-17 Sprayed G1 all Reps CE 1 nd CE2 , 2 corn blocks in Rep 6 as well as the bait crop corn. Applied Interline at 22 ounces/acre, Acuron at 2 qt/ acre, Ammonium Sulfate at 3.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions on 06, 17 Sunny 65 degrees F, Winds 5.5 mph out of the West 75.5% Relative Humidity REI: 12 hours. Leon Thelen
2022-06-08 Applied fertilizer to CE study 108, 112, 202, 210, 304, 312, 401, and 402. 54 gallons per acre was applied in two passes of 27 gallons each. This application applied 161.7 lbs of nitrogen. Weather was 58.0 °F, Wind was 1 mph out of the North East. Humidity was 98.2% Application was made with the John Deere 7420b and the 15ft 28% applicator. Leon Thelen
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