Narrative Agronomic Field Log

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 December 2017
Dataset: KBS083
Datatable ID: KBS083-002.34
Related Tables:
Personnel:
Last Updated 2017-12-18
Variate Description Units
Obs date observation date
Comment description of the agronomic practice
Author author of the observation

Data Excerpt

obs_date comment author
2017-12-04 Harvested the remaining standing biomass in the CE study, and the Switchgrass Nitrogen study. Justin Mezo
2017-12-01 Flail mowed corn stalks in LTER N-Rate Nitrogen study both irrigated and non irrigated, CE study corn plots, corn and soybean plots in biodiversity as well as the spring fallow plots. Justin Mezo
2017-11-10 Harvested soybeans in the CE and biodiversity study. Equipment used: Kincaid 8XP Plot Combine. CE treatment and plots harvested: CE2 (plots 112, 210, 312, and 402). Biodiversity treatment and plots harvested: B5 (114, 217, 312, 405), B8 (118, 214, 310, 408), B11: (110, 216, 309, 411), B12: (109, 202, 313, 412), B14: (115, 204, 304, 414), B16 (101, 210, 308, 416), B19: (103, 218, 315, 419). Joe Simmons
2017-10-27 Harvested corn from the LTER T8nt, CE, and Biodiversity Study. CE study plots harvested treatment: CE3 plots (105, 207, 301, 403), CE1 plots were fallow during 2017 growing season so no harvest from the CE1 plots in 2017. CE1 plots were fallow for a project from the Landis Lab with Monarch butterflies. CE1 plots (108, 202, 304, 401). Biodiversity Plots harvested treatments: B4 (104, 220, 307, 404), B7 (105, 219, 305, 407), B10: (117, 209, 320, 410), B13: (113, 212, 319, 413), B15 (112, 213, 301, 415), B18: (108, 208, 311, 418). For each plot two rows of corn were harvested: For the CE and Biodiversity plots the two rows harvested were rows 9 and 10 from the west side of each plot (each plot was 12 rows wide and we harvest the middle of the 'east half' of each plot). T8nt plot rows were cut (shortened) to 120' of row length for harvest. For the T8nt plots two rows were harvested twice within each plot (a total of 4 rows (120' for each row) were harvested from each plot). Plot weight and moisture content were obtained from the on-board Mirus software by Harvest Master. Harvested with Kincaid 8XP Plot Combine. Joe Simmons
2017-10-05 Harvested LTER Cellulsic Biofuels Experiment (CE Study), 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 east side of each plot. Plot weight were obtained from the on-board Mirus computer weighing system, by Juniper Systems. Cutting height of plant stubble was 5 inches. Grab samples from each rep was placed in paper bags weighed for wet weight and placed in plant dryer and reweighed to determine percent moisture for each treatment and replication. Harvested treatments CE4: (plots 110, 203, 302, 404), CE5: (plots 106, 205, 303, 405), CE6: (plots 111, 204, 310, 406), CE7: (plots 107, 208, 309, 407), CE8: (plots 103, 211, 307, 408), CE9: (plots 102, 201, 308, 409), CE10: (plots 104, 206, 306, 410), CE11: (plots 101, 209, 311, 411), and CE12: (plots 109, 212, 305, 412). Started harvest in south west corner (C11:plot 101) and harvested in a serpentine pattern working to the east. Justin Mezo
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