Narrative Agronomic Field 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 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
2021-11-10 Harvested LTER Cellulsic Biofuels Experiment (CE Study), Treatments C4-C12 (all replications). Harvested the biomass crops i.e. switchgrass, C3 and C4 mix, and prairie grasses mixes. Harvested with JD 7330 tractor using the 7.5 ft wide Kemper head and Wintersteiger biomass harvester weighing system. The middle 7.5 ft was harvested out of the middle of each plot. Plot weight was obtained from the on-board Mirus computer weighing system, by Juniper Systems. Cutting height of plant stubble was approximately 5 inches. Grab samples from each rep were placed in paper bags weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Started harvest in south west corner (C11:plot 101) and harvested in a serpentine pattern working to the east. Ryan Anthony
2021-07-27 Sprayed LTER main site T1, T2 edges at 32oz/acre round up all reps. Sprayed old micro plots in northwest corners at 44oz/acre; all reps. Sprayed CE Study CE2 reps: 112, 210, 312, & 402. Sprayed T8nt all reps. Sprayed Lysimeter field east side. Sprayed Roundup Powermax at 32 ounces/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 at the beginning , Sunny. Weather conditions at the end 4:00pm: Did not record REI: 24 hours. Ryan Anthony
2021-06-24 Sprayed GLBRC main site G1 all reps (5,1,2,3,4). Sprayed LTER main site T3 all reps (4,5,2,1,3,6). Sprayed LTER main site CE1 and CE3. Sprayed Roundup Powermax at 32 ounces/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 at the beginning 8:00am: 64 degrees F, 10mph south wind, 63% Relative Humidity, Sunny. Weather conditions at the end 12:30pm: 75 degrees F, 11mph south wind, 57% Relative Humidity, Cloudy REI: 24 hours. Ryan Anthony
2021-06-22 Fertilized GLBRC Main Site G1 plots, CE1, CE3, rep 6 and bait crop corn with 41 gallons per acre of 28% nitrogen. This blend supplied 122 lbs/A of Nitrogen. Weather was 63 degrees, with wind 5 mph out of the south west, 50.5 % humidity and cloudy. Leon Thelen
2021-06-17 Sprayed LTER main site CE 2 reps (112,210,312,402) Sprayed with Enlist at 2 pints/acre, Roundup Powermax at 42.7 ounces/acre, Ammonium Sulfate at 2.4lbs/acre, and a small amount of de-foaming agent. Rate of spray was 20gal/acre on JD rate controller. Weather conditions at the beginning 8:00am: unknown Weather conditions at the end 8:15am: unknown REI: 48 hours. Ryan Anthony
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