Narrative Agronomic Field Log

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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.


Experiment: Cellulosic Biofuel Diversity Experiment
Data available from: September 2006 to November 2019
Dataset: KBS083
Datatable ID: KBS083-002.40
Repository link:
Related Tables:
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
2020-06-11 Fertilized the LTER CE Corn Plots (CE1 and CE2), and T8nt plots all replications. Urea-Ammonium Nitrate (28-0-0) was applied at a total rate of 41 gal/A. Since 28% fertilizer weighs 10.65 lbs/gal, the 41 gal/A equals 122 lbs N/A. Fertilizer was knifed between the rows of corn using a 15' liquid fertilizer applicator at a depth of 5-6 inches. Equipment used: JD7420b tractor and the 6 row fertilizer applicator equipped with a John Deere Rate Controller and an Ace pump, The 28% applicator has seven coulters where the 5 inside coulters apply a full target rate and the 2 outside coulters apply half of the target rate. The applicator is controlled by a rate controller as well as inline orifices. Weather conditions at the start 2:15 p.m. sunny, 70.8 degrees F, 8-9 mph west winds, 42.7% humidity. Conditions at the end 3:05 p.m. sunny 72.2 degrees F, 6-7 mph west wind, 36.6 % humidity. Justin Mezo
2020-06-04 Sprayed LTER CE 3 plots, GLBRC productivity study, behind brown house, and perimeter bait crop where soybeans were planted with Valor and Roundup Powermax. Valor was applied at 3.5 oz/A Roundup Powermax applied at 1 qt/A. Weather conditions: At the start 1:00 p.m. sunny 81.1 degrees F, humidity was 56.6 % with 5-6 mph north west. End of application 2:15 p.m. sunny, 82 degrees F, humidity 55.9 %, with 4-5 mph west winds. Justin Mezo
2020-06-02 Planted soybeans in the GLBRC bait crop (all of productivity study, and behind the brown house) and LTER CE3 plots. Equipment Used: Planted with the JD 7330 tractor and JD 1730 planter. Variety: Planted Pioneer P28A42X Roundup Ready 2 Extend soybeans. Planting depth: 1.25 inches. Row spacing: 15 inches. Justin Mezo
2020-05-23 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. Justin Mezo
2020-05-22 Fertilized LTER Cellulsic Biofuels Experiment (CE Study) treatment CE4 and CE6, all replications. Treatments CE4: (plots 110, 203, 302, 404); and CE6: (plots 111, 204, 310, 406). Plots received 50 lbs N/A with 16.7 gallons/A 28% N liquid fertilizer. 28% fertilizer weighs 10.67 lbs /gallon so the 50 lbs N/A worked out to 16.7 gal 28%/A. Weather conditions: 11:00 a.m overcast, light drizzle,60 degrees F, 4-6 mph East wind, 95.7 % humidity. Justin Mezo
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