Soil Inorganic Nitrogen — GLBRC Switchgrass Nitrogen Rate 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Soil extractable nitrogen from soils of the Switchgrass Nitrogen/Harvest Experiment at the GLBRC Biofuel Intensive site. Plants are grown under 8 treatments of nitrogen fertilizer and two harvest strategies.
This datatable is part of the KBS GLBRC soil properties dataset.
Soil property measurements from the surface soils of the intensive experiment
Note
| Experiment: | GLBRC Switchgrass Nitrogen Rate Experiment |
| Data available from: | January 2009 to January 2010 |
| Dataset: | KBS078 |
| Datatable ID: | KBS078-006.119 |
| Core Areas | Inorganic Nutrients,Disturbance |
| Repository link: | |
| Related Tables: |
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| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| year | year of the growing season | |
| sample date | date soil was collected | |
| treatment n rate kg ha | experimental treatment - nitrogen application rate | kg/ha |
| replicate | replicate block nested within treatment | |
| nitrate mg kg | soil extractable nitrate plus nitrite, as N (average of analytical replicates, screened for outliers and corrected for soil moisture) | mg/kg |
| ammonium mg kg | soil extractable ammonium, as N (average of analytical replicates, screened for outliers and corrected for soil moisture) | mg/kg |
| harvest strategy | How many times is the crop harvested per year? | |
| comments | notes specific to the data row |
| Protocols |
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| Soil Inorganic N |
GLBRC data is not yet publicly available.
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| year | sample_date | treatment_n_rate_kg_ha | replicate | nitrate_mg_kg | ammonium_mg_kg | harvest_strategy | comments |
|---|---|---|---|---|---|---|---|
| 2009 | 2009-06-20 | 84 | 4 | 9.85 | 9.43 | 1 harvest per year | |
| 2009 | 2009-06-23 | 84 | 4 | 29.51 | 12.54 | 1 harvest per year |