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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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

This datatable is part of the Cellulosic Biofuels Diversity Experiment dataset.

This dataset contains data from the Cellulosic Biofuels Diversity Experiment established in 2008 at the LTER Main Site and consisting of 12 different cropping systems (CE1-CE12) that vary in species makeup and nitrogen input. Treatments include continuous corn, corn-soybean rotations, two varieties of switchgrass fertilized differently, a C3 – C4 grass mix, and prairie grasses native to Michigan with different numbers of species. See the plot map for treatment details and Related Tables for seed species and planting details. Treatment plots are 9 × 27 m replicated in each of 4 randomized blocks. Plots are harvested annually in the fall and crop yields are recorded.


Experiment: Cellulosic Biofuel Diversity Experiment
Data available from: September 2006 to November 2019
Dataset: KBS083
Datatable ID: KBS083-002.58
Repository link:
Related Tables:
Last Updated 2024-02-16
Variate Description Units
Obs date observation date
Comment description of the agronomic practice
Author author of the observation

Data Excerpt

obs_date comment author
2024-06-14 Sprayed LTER CE study (CE1, CE2 and CE3 plots), T8nt plots, and Lysimeter Field with Liberty. Spray rate was 20 gal/A with Liberty rate at 43 oz/A and 3 lbs/A Ammonium Sulfate. Application began at 9:30 am and concluded at 11:45 am. REI for Liberty Herbicide is 12 hours. Safe reentry on Friday June 14 at 11:45 PM Liberty herbicide used to control marestail. Weather at 9:30 am: Temperature: 70.3°F Wind Direction: East Wind Speed: 6.58 mph Relative Humidity: 73.2% Weather at 11:45 am: Temperature: 56.7°F Wind Direction: Northeast Wind Speed: 6.30 MPH Relative Humidity: 56.7% Ethan Rocklin
2024-05-24 T6 (1, 2, 4, 3, 5, 6) plots and CE study switchgrass plots CE4 and CE6 (110, 203, 302, 404, 111, 204, 310, 406) were fertilized with 28% U.A.N. nitrogen fertilizer at 17 Gallons per Acre, applying 50 lb N per Acre. Bromegrass and unfertilized mircoplots in Northwest corner of T6 plots were avoided. Application began 1:00 pm and concluded at 4:00 pm. Weather at 1:00 pm: 79.1°F Wind 7.22 mph from the South 31.8% RH Weather at 1:00 pm: 80.5°F Wind 5.09 mph from the South 33.3% RH Ethan Rocklin
2024-05-02 Fertilized LTER CE Study corn and soybeans (CE1, CE2, and CE3), and T8nt plots with Triple Super Phosphate (0-46-0), at 150 lbs/A. Super phosphate was applied at 150 lbs/A providing 69 lbs/A of P2O5. Fertilized LTER N-Rate Study (Irrigated and Rainfed) with Triple Super Phosphate (0-46-0) at 200 lbs/A, providing 92 lbs/A of P2O5. Application of started at 10:00 A.M. and ended at 11:50 A.M. Application in done at 3.8 mph in C2 with 1300 engine RPM. JD Dry rate controller CFR was .0155, density of TSP was 60 lbs/cubic ft. Gandy air fan was at 13-15 ounces per square inch. Weather conditions at 10:00 am: Temperature: 61.9°F Wind Speed (5 minute at 3m) : 5.75 mph Wind Direction: East Relative Humidity: 57.5% Weather Conditions at 11:45 p.m: Temperature: 66.3° F; Wind Speed (5 minute at 3m) : 9.74 mph Wind Direction: Southeast Relative Humidity: 44.8% Ethan Rocklin
2024-04-26 Herbicide application to T2R1 (remainder of plot), LTER N-Rate Study, T8nt plots (reps 1, 2, 3, 4), CE Study corn and soybeans (CE 1, 2, and 3) RoundUp Power Max 3 at 44 oz per acre and Ammonium Sulfate at 40 lbs per 200 gal were applied pre-plant as a burndown. Application in T2R1 began at 9:00 am and conduced in the Lysimeter field at 12:15. Rate of spray was 20gal/acre on JD rate controller. REI is 4 hours, safe re-entry on Friday April 26 at 4:15 pm. Weather at 9:00 am: Temperature: 46.0°F Wind Direction: Southeast Wind Speed: 9.27 mph Relative Humidity: 64.0% Weather at 12:15: Temperature: 56.0°F Wind Direction: Southeast Wind Speed: 10.87 mph Relative Humidity: 40.6% Ethan Rocklin
2023-11-30 Harvested corn in the CE study. CE1 plots (108, 202, 304, 401) and CE3 plots (105, 207, 301, 403). For each plot two rows of corn (5' wide) per pass was harvested for yield using the Kincaid plot combine. Total number of rows harvested in each plot was 4. Weight of plots was determined by using the on-board Mirus system, and moisture was taken with the FSC Dickey John. Remaining of corn in plots was harvested the same day. Equipment Used: Kincaid plot combine and white/green grain truck. Equipment Used: JD S660 combine and white/green grain truck. Jarrod Rhoades
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