Soybean Biomass and Nitrogen from Hess’ Rainfall Intensification Study — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Aboveground soybean biomass one day before the extreme and control rainfall exclusion plots were harvested. Dried biomass was weighed then threshed to separate grain from stover; both fractions were analyzed for C and N.
This datatable is part of the Nitrogen Dynamics from Hess' Rainfall Intensification Study dataset.
This dataset contains results from L. Hess’ dissertation research on the effects of rainfall intensification on N leaching, soil inorganic N pools, soil N transformations, and crop N content in the MCSE Conventional (T1) and No-till (T2) treatments. Data supporting Hess et al. (2020).
Hess, L., E. S. Hinckley, G. P. Robertson, and P. A. Matson. 2020. Rainfall intensification increases nitrate leaching from tilled but not no-till cropping systems of the U.S. Midwest. Agriculture, Ecosystems and Environment 290:106747. https://doi.org/10.1016/j.agee.2019.106747
Note
| Experiment: | Main Cropping System Experiment (MCSE) |
| Data available from: | September 2015 |
| Dataset: | KBS148 |
| Datatable ID: | KBS019-024.6 |
| Core Areas | Primary Production |
| Repository link: | |
| Related Tables: | |
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| Last Updated | 2024-02-13 |
| Variate | Description | Units |
|---|---|---|
| sample date | date of biomass sampling | |
| treatment | MCSE treatment | |
| replicate | block nested in treatment | |
| rainfall treatment | rainfall manipulation | |
| biomass | biomass measurement | kg/ha |
| yield | yield measurement | kg/ha |
| harvest index | ||
| stover n percentage | nitrogen percentage in stover | % |
| grain n percentage | nitrogen percentage in grain | % |
| grain n kg ha | grain nitrogen weight in kg per hectare | kg/ha |
| stover n kg ha | stover nitrogen weight in kg per hectare | kg/ha |
| biomass n kg ha | biomass nitrogen weight in kg per hectare | kg/ha |
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Data Excerpt
| sample_date | treatment | replicate | rainfall_treatment | biomass | yield | harvest_index | stover_n_percentage | grain_n_percentage | stover_n_kg_ha | grain_n_kg_ha | biomass_n_kg_ha |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015-09-29 | t1 | r1 | control | 6682.41 | 4050.0 | 0.6060688 | 0.65085 | 5.70015 | 17.133041 | 230.85608 | 247.98912 |
| 2015-09-29 | t1 | r1 | extreme | 6218.06 | 3341.55 | 0.5373943 | 0.71745 | 5.73805 | 20.637522 | 191.7398 | 212.37733 |
| 2015-09-29 | t1 | r2 | control | 5554.41 | 3389.4 | 0.6102178 | 0.63775 | 5.66445 | 13.807351 | 191.99088 | 205.79822 |
| 2015-09-29 | t1 | r2 | extreme | 7862.26 | 4380.0 | 0.5570917 | 0.56285 | 5.68075 | 19.599901 | 248.81685 | 268.41675 |
| 2015-09-29 | t1 | r3 | control | 7852.96 | 4291.5 | 0.54648185 | 0.7416 | 5.5084 | 26.411787 | 236.39299 | 262.80478 |