Soil Inorganic Nitrogen

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: Switchgrass Nitrogen Rate Experiment
Data available from: June 2009 to November 2010
Dataset: KBS078
Datatable ID: KBS078-006.61
Core Areas Inorganic Nutrients,Disturbance
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Last Updated 2017-01-26
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
Soil Inorganic N

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Data Excerpt

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
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