GLBRC Sustainability Data Catalog

Switchgrass Dry Matter Yield — GLBRC Marginal Land Rainfall Exclusion Experiment

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Dry matter yields of switchgrass from hand-harvested subplots of the Marginal Land Rainfall Exclusion Experiment; subplots include rainout, ambient, and reserved, if implemented to examine additional agronomic activities (e.g., irrigated). Yield data are given as megagram dry matter per hectare.

This datatable is part of the Marginal Land Rainfall Exclusion Experiment dataset. This dataset contains data from the GLBRC Marginal Land Rainfall Exclusion Experiment established in 2018 to examine the effects of drought on switchgrass production and composition. Rainfall exclusion (rainout) shelters are deployed over the growing season in fertilized split plots of the Switchgrass treatment (G5) at all sites of the Marginal Land Experiment (MLE) and in the Switchgrass treatment (G5) plots of the Biofuel Cropping System Experiment (BCSE) at the KBS GLBRC Intensive Site, which serves as a reference for cropped soils with higher fertility. Rainout shelters are deployed in four G5 replicate plots of the BCSE (R2-R5) and of the MLE (R1-R4) at all sites except Wisconsin Central–Hancock (R2-R4), which has only three replicates.

Note

Experiment: GLBRC Marginal Land Rainfall Exclusion Experiment
Data available from: January 2018 to November 2022
Dataset: GLBRC134
Datatable ID: GLBRC134-001.99
Core Areas Primary Production
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Last Updated 2023-01-19
Variate Description Units
year year of the growing season
harvest date date of harvest or G11 sampling
site experiment location
treatment experimental treatment
replicate replicate nested within treatment
crop crop
field section experimental subplot: rainout, ambient, or reserved (if implemented)
n treatment nitrogen experimental treatment
area harvested ft2 area_harvested squarefoot
dry matter yield mg ha yield as dry matter Mg/ha
moisture at harvest percent moisture measured at harvest %
comments specific notes for a given row

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Data Excerpt

year harvest_date site treatment replicate crop field_section n_treatment area_harvested_ft2 dry_matter_yield_mg_ha moisture_at_harvest comments
2018 2018-10-24 Michigan BCSE G5 R2 switchgrass rainout plus_n 64.0 5.376186 0.34 assumed the same moisture content as in Rep 5 rainout plot, since there was no dry weight available for the other BCSE plots in 2018
2018 2018-10-24 Michigan BCSE G5 R2 switchgrass ambient microplot plus_n 60.0 5.234903 0.34 assumed the same moisture content as in Rep 5 rainout plot, since there was no dry weight available for the other BCSE plots in 2018
2018 2018-10-24 Michigan BCSE G5 R3 switchgrass rainout plus_n 64.0 6.28523 0.34 assumed the same moisture content as in Rep 5 rainout plot, since there was no dry weight available for the other BCSE plots in 2018
2018 2018-10-24 Michigan BCSE G5 R3 switchgrass ambient microplot plus_n 60.0 6.722091 0.34 assumed the same moisture content as in Rep 5 rainout plot, since there was no dry weight available for the other BCSE plots in 2018
2018 2018-10-24 Michigan BCSE G5 R4 switchgrass rainout plus_n 64.0 5.967343 0.34 assumed the same moisture content as in Rep 5 rainout plot, since there was no dry weight available for the other BCSE plots in 2018
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