GLBRC Sustainability Data Catalog

Agronomic Yield of Annual Crops; treatments 1 - 4

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Agronomic yield from the 4 annual crop treatments. These treatments are part of the GLBRC Biofuel Cropping System Experiment located on the Arlington and KBS GLBRC Intensive sites. Yield is given at standard moisture for corn (15.5 %), soybean (13 %) and canola (8.5 %).

In addition to yield data from the main part of the field, yield data from stover microplots is also given here. The stover microplots are generally on the east and west side of the main field, one side is the control (same as the main field) and the other side is an alternate stover treatment. Stover is removed on the main field and in the stover microplot controls and was not removed in the stover microplots. The stover microplot study was designed to provide experimental data on the impacts of stover removal in order to establish threshold levels of stover management. Starting in 2013, 1/3 of the stover microplot control was herbicided and the first yield was taken from these plots in 2014.

Agronomic yields are measured during normal crop harvest by machine harvesters appropriate to each crop as described in the GLBRC Agronomic Protocol.

This datatable is part of the GLBRC Agronomic Yields dataset. This data set contains information about agronomic yields for the GLBRC Biofuel Cropping System Experiment, the Stover Removal Experiment and the Unfertilized/fertilized Experiment at Kellogg Biological Station and Arlington and also for the GLBRC Scale-up experiment and Switchgrass N-rate experiments at KBS. Perennial treatments include herbaceous perennials- switchgrass, miscanthus, grass mix, old field and prairie (G5,G6, G7, G9 and G10) and poplar trees (G8) . Annual treatments include continuous corn (G1), and during 2008-2011 corn-soybean–canola rotations (G2-G4). In 2012 ,G2-G4 treatments no longer planted canola and added cover crops to a corn-soy rotation. Agronomic yields are measured during normal crop harvest by machine harvesters appropriate to each crop as described in the GLBRC Agronomic Protocol.

Note

Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: January 2008 to January 2019
Dataset: GLBRC081
Datatable ID: GLBRC081-001.95
Repository link:
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Last Updated 2020-04-14
Variate Description Units
year year of the growing season
harvest date harvest date
site experiment location
main or microplot experiment where the crop was harvested from
treatment name description of treatment
treatment experimental treatment
replicate replicate nested within treatment
crop crop harvested
wi plot id Arlington's plot code
area harvested ft2 area harvested squarefoot
yield mg ha crop yield (at standard moisture for corn 15.5%, soy 13% and canola 13%, 0% for sorghum biomass) Mg/ha
moisture at harvest moisture measured at harvest %
comments comments
field section section of the field harvested
fraction part of the crop that was harvested
cover crop herbicided Was the cover crop herbicided?
stover remains did the stover remain in the field? The standard practice was to remove stover in corn years and leave it in the stover_microplots. On the plot plans the stover microplots are called 'stover non-removal microplots'

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Data Excerpt

year harvest_date site main_or_microplot treatment_name treatment replicate crop wi_plot_id area_harvested_ft2 yield_mg_ha moisture_at_harvest comments field_section fraction cover_crop_herbicided stover_remains
2019 2019-11-20 KBS main Continuous corn + cover crops G2 R1 energy sorghum 8037.83750000002 13.25 0.706032893003651 whole false
2019 2019-11-05 KBS fertilized microplot Continuous corn + cover crops G2 R1 energy sorghum 984.225000000001 13.30 0.74487510118028 whole false
2019 2019-11-05 KBS unfertilized microplot Continuous corn + cover crops G2 R2 energy sorghum 623.999999999999 9.14 0.734226441093164 whole false
2019 2019-11-05 KBS fertilized microplot Continuous corn + cover crops G2 R2 energy sorghum 984.225000000001 11.65 0.744583436801589 whole false
2019 2019-11-25 KBS main Continuous corn + cover crops G2 R2 energy sorghum 8037.83750000002 14.08 0.699755955040732 whole false
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