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.
Note
| Experiment: | GLBRC Scale-up Experiment |
| Data available from: | January 2009 to January 2022 |
| Dataset: | GLBRC141 |
| Datatable ID: | GLBRC081-008.66 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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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 | |
| comments |
GLBRC data is not yet publicly available.
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| year | harvest_date | treatment | treatment_name | crop | crop_yield | yield_units | fraction | moisture | acreage | comments |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 2023-12-14 | L2 | AGR-Switchgrass | switchgrass | 2.99 | Mg/hectare - dry matter | whole | 12.9 | 33.97 | |
| 2023 | 2024-04-11 | L3 | AGR-Prairie | restored prairie | 0.38 | Mg/hectare - dry matter | whole | 2.9 | 32.95 | harvested in the spring of the following year |
| 2023 | 2024-04-10 | M2 | CRP-Prairie | restored prairie | 0.58 | Mg/hectare - dry matter | whole | 4.3 | 26.0 | harvested in the spring of the following year |
| 2023 | 2023-12-15 | M3 | CRP-Switchgrass | switchgrass | 4.35 | Mg/hectare - dry matter | whole | 12.5 | 31.5 | |
| 2022 | 2022-12-07 | L1 | AGR-Corn | corn | 1.66 | Mg/hectare - dry matter | stover | 41.7 | 25.4 |