Plant Total Carbon and Nitrogen — GLBRC Scale-up 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Total carbon and nitrogen content of plants of the GLBRC Scale-up Experiment. Dried and ground subsamples of peak biomass samples are analyzed and include: 1) corn stems and grain at each sampling station in fields L1 and M1; 2) switchgrass, an aggregate of additional species, and surface litter, combined across stations, in fields L2 and M3; and 3) separate analysis of the top 3 species by weight, an aggregate of the remaining species, and surface litter, combined across stations, in fields L3, M2, and M4. Subsamples from soybean harvest in 2009 and occasional post-harvest residue collections are also included.
This datatable is part of the GLBRC Scale-up Cropping Systems dataset. 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: | March 2009 to December 2019 |
| Dataset: | GLBRC141 |
| Datatable ID: | GLBRC091-006.39 |
| Core Areas | Primary Production |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2023-04-04 |
| Variate | Description | Units |
|---|---|---|
| campaign | sampling intent | |
| sample date | date of sampling | day |
| treatment | experimental treatment | |
| treatment name | name of the treatment | |
| replicate | replicate nested in treatment | |
| station | sampling location | |
| species | species name of the sample | |
| fraction | plant fraction of the sample | |
| nitrogen percentage | nitrogen percentage in sample | % |
| carbon pertentage | carbon percentage in sample | % |
| comment |
GLBRC data is not yet publicly available.
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| campaign | sample_date | treatment | treatment_name | replicate | station | species | fraction | n_percentage | c_percentage | comment | fraction |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvest | 2009-10-19 | L1 | AGR-Corn | R1 | S1 | Glycine max L. (*) | stover | 0.732 | 44.021 | soybean planted for the baseline year | stover |
| Harvest | 2009-10-19 | L1 | AGR-Corn | R1 | S10 | Glycine max L. (*) | grain | 6.424 | 51.686 | soybean planted for the baseline year | grain |
| Harvest | 2009-10-19 | L1 | AGR-Corn | R1 | S10 | Glycine max L. (*) | stover | 1.441 | 43.324 | soybean planted for the baseline year | stover |
| Harvest | 2009-10-19 | L1 | AGR-Corn | R1 | S2 | Glycine max L. (*) | stover | 0.911 | 43.725 | soybean planted for the baseline year | stover |
| Harvest | 2009-10-19 | L1 | AGR-Corn | R1 | S1 | Glycine max L. (*) | grain | 6.07 | 51.076 | soybean planted for the baseline year | grain |