Total Carbon and Nitrogen Content at Peak Biomass — GLBRC Biofuel Cropping System Experiment
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|
|year||year the sample was collected|
|sample date||date the plants were collected|
|replicate||replicate nested within treatment|
|fraction||plant part analyzed|
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|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||aggregate of live biomass except for Zea mays||39.7247||1.7703|