GLBRC Sustainability Data Catalog

Agronomic Yield — GLBRC Scale-up Experiment

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Agronomic yields from machine harvests of fields at Lux Arbor Reserve and the Marshall Farm. Note that 1) corn and soybean grain are reported at standard moisture content in bushels per acre; 2) corn stover, switchgrass and restored prairie are reported as megagrams dry matter per hectare; and 3) removal of corn stover from fields began with the 2015 harvest.

This datatable is part of the GLBRC Scale-up Experiment Cropping Systems dataset.

This dataset contains data on plant communities in fields at Lux Arbor Reserve (L1-L3) and Marshall Farm (M1-M4) planted to corn (L1, M1), switchgrass (L2, M3), and restored prairie (L3, M2) in 2010 after a 2009 no-till soybean crop in all fields to convert tilled corn-soybean-wheat rotations (AGR) at Lux Arbor and fields in the Conservation Reserve Program (CRP) at Marshall Farm to no-till bioenergy crops. One field at Marshall Farm (M4) remains as CRP brome grass to serve as a reference. Each field has 10 sampling stations (S1-S10) around which most sampling occurs.


Experiment: GLBRC Scale-up Experiment
Data available from: January 2009 to January 2022
Dataset: GLBRC141
Datatable ID: GLBRC081-008.64
Repository link:
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Last Updated 2023-10-25
Variate Description Units
year year of the growing season
harvest date date the crop was harvested
treatment experimental treatment
treatment name treatment description
crop crop harvested
crop yield crop yield - At standardized moisture for corn 15.5% and for soybean 13%. Conversion for corn: 56 pounds/bushel. Conversion for soybeans: 60 pounds/bushel. Switchgrass, prairie and corn stover yield were adjusted to 0% moisture. Units are given in a separate column.
yield units units for yield
fraction part of crop that was harvested
moisture percent moisture of crop %
acreage area harvested

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Data Excerpt

year harvest_date treatment treatment_name crop crop_yield yield_units fraction moisture acreage comments
2022 2022-12-07 L1 AGR-Corn corn 1.66 Mg/hectare - dry matter stover 41.7 25.4
2022 2022-11-03 L1 AGR-Corn corn 94.1 bushels/acre grain 15.5 25.4 was reported as 110.9 bu/acre but I'm not sure where that number came from
2022 2022-11-11 L2 AGR-Switchgrass switchgrass 3.9 Mg/hectare - dry matter whole 23.5 35.4
2022 2022-11-11 L3 AGR-Prairie restored prairie 2.12 Mg/hectare - dry matter whole 18.0 32.7
2022 2022-10-29 M1 CRP-Corn corn 145.5 bushels/acre grain 15.5 42.0 was reported as 10.8 bu/acre but I don't know here that number came from
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