Stover and Cover Crop Yields and Residual Stover Biomass — GLBRC Biofuel Cropping System 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Corn stover (dried stalks and leaves remaining after grain harvest) and cover crop yields, expressed as dry matter, for BCSE annual treatments (G1-G4, depending on year). Note that from 2008-2014, stover was harvested by mowing and chopping directly into a forage wagon and that from 2015 onward, it is mowed, windrowed, and baled.
Also included is the biomass of hand-collected samples of residual corn stover—the stover biomass that remains on the ground after stover harvest—for the period 2008-2014 when harvest resulted in an even distribution of stover on the ground. The change to windrowing in 2015 resulted in an uneven distribution of stover on the ground and requires a different sampling approach; these data are located in datatable GLBRC143-002.
This datatable is part of the Agronomic Yields dataset.
This dataset contains the yields from machine harvests for all treatments (G1-G10) of the GLBRC Biofuel Cropping System Experiment (BCSE). Yields are measured in each treatment replicate (R1-R5) during normal crop harvest by machine harvesters appropriate to each crop, as recorded in the KBS Aglog.
This dataset also includes yields from two different subplot studies on 1) stover removal vs stover non-removal and 2) plus nitrogen vs no nitrogen fertilization. See the BCSE – Sampling protocol for further description of subplot management and location.
Note
| Experiment: | GLBRC Biofuel Cropping System Experiment |
| Data available from: | January 2008 to January 2017 |
| Dataset: | GLBRC081 |
| Datatable ID: | GLBRC081-004.168 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| crop year | year of the growing season | |
| harvest date | harvest date | |
| site | location of experiment | |
| treatment | experimental treatment | |
| replicate | replicate block nested in treatment | |
| fraction | part of the plant that was harvested | |
| field section | section of the field harvested | |
| area harvested ft2 | area harvested | |
| dry matter yield kg ha | yield as dry matter | kg/ha |
| moisture at harvest | percent moisture measured at harvest | % |
| comments | comment on data row |
GLBRC data is not yet publicly available.
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| crop_year | harvest_date | site | treatment | replicate | fraction | field_section | area_harvested_ft2 | dry_matter_yield_kg_ha | moisture_at_harvest | comments |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 2020-11-19 | KBS GLBRC Intensive Site | G1 | R1 | corn stover | main | 9842.25 | 3222.0 | 34.7 | |
| 2020 | 2020-11-19 | KBS GLBRC Intensive Site | G1 | R2 | corn stover | main | 9842.25 | 3163.0 | 21.5 | |
| 2020 | 2020-11-19 | KBS GLBRC Intensive Site | G1 | R3 | corn stover | main | 9842.25 | 3157.0 | 19.8 | |
| 2020 | 2020-11-19 | KBS GLBRC Intensive Site | G1 | R4 | corn stover | main | 9842.25 | 3494.0 | 27.5 | |
| 2020 | 2020-11-19 | KBS GLBRC Intensive Site | G1 | R5 | corn stover | main | 9842.25 | 3433.0 | 19.2 |