GLBRC Sustainability Data Catalog

Total Carbon and Nitrogen Content at Peak Biomass — GLBRC Biofuel Cropping System Experiment

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Total carbon and nitrogen content of plant samples collected at peak biomass for estimates of annual net primary production (ANPP) from all BCSE treatments (G1-G10). Samples are composited by sample type and replicate (across stations). Samples from annual crop treatments include grain and stover fractions and a combined sample of non-crop species. From 2008-2017, ANPP samples of perennial crops were sorted to species: analyses of monoculture perennial treatments include crop (switchgrass and miscanthus) plus a combined sample of all additional species (“unsorted”); analyses of mixed perennial treatments include the top three species by weight and an aggregate sample of all remaining species. Since 2018, ANPP samples of perennial treatments are left “unsorted” and analyzed as such.

This datatable is part of the GLBRC Plant Chemical Analyses dataset.

This dataset contains the total carbon and nitrogen content of plant material of the GLBRC Biofuel Cropping System Experiment (BCSE) at peak biomass and at harvest, and the complete chemical analysis of leaf tissue of selected species to occasionally assess their nutrient status.


Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: January 2008 to January 2018
Dataset: GLBRC091
Datatable ID: GLBRC091-003.9
Repository link:
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Last Updated 2023-10-24
Variate Description Units
year year the sample was collected
sample date date the plants were collected
treatment experimental treatment
replicate replicate nested within treatment
species plant species
fraction plant part analyzed
microplot microplot
carbon percent carbon %
nitrogen percent nitrogen %

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Data Excerpt

year sample_date treatment replicate species fraction microplot carbon nitrogen
2008 2008-10-10 G1 R1 Zea mays L. (*) grain 40.6147 1.6367
2008 2008-10-10 G1 R1 Zea mays L. (*) stover 44.7889 0.7255
2008 2008-10-10 G1 R2 Zea mays L. (*) grain 40.4013 1.8047
2008 2008-10-10 G1 R2 Zea mays L. (*) stover 43.7093 0.7402
2008 2008-10-10 G1 R3 Zea mays L. (*) grain 41.0563 1.8393
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