Soil Inorganic N and Gravimetric Moisture — Resource Gradient Experiment

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Surface soil (0-25 cm) inorganic N and gravimetric soil moisture measurements.

This datatable is part of the Resource Gradient Experiment dataset. This study provides a gradient of 9 different rates of nitrogen fertilization under rainfed and irrigated conditions. Irrigation began in 2003. Corn was grown from 2000-2005 and subsequently the crop rotation (wheat, corn, soybean) followed the crop of the LTER main site. Nitrogen applications differ by crop after 2007.

The experiment was moved to its current location on the LTER main site in 2005. The experiment location/history are explained here.

Plots are 5×30 m arranged in each of 4 replicate blocks .

Crop yields, nitrous oxide and soil temperature, moisture and nitrogen data are available for this study.


Experiment: Resource Gradient Experiment
Data available from: January 2012
Dataset: KBS033
Datatable ID: KBS033-007.91
Core Areas Inorganic Nutrients
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Related Tables:
Last Updated 2020-07-10
Variate Description Units
year the year when the sample was taken
campaign the name of the sample campaign
sample date the date the soil sample was taken
plot the plot that was sampled
treatment the treatment
replicate the replicate
no3 nitrate μg/g
nh4 ammonium μg/g
moisture gravimetric soil moisture on a dry weight basis %

Data Excerpt

year campaign sample_date plot treatment replicate no3 nh4 moisture
2012 Soil Inorganic N 2012-10-24 F101 F1 1 1.227 1.193 15.789474
2012 Soil Inorganic N 2012-10-24 F102 F2 1 1.138 0.897 14.99239
2012 Soil Inorganic N 2012-10-24 F103 F3 1 0.883 0.654 14.6503315
2012 Soil Inorganic N 2012-10-24 F104 F4 1 1.854 0.828 16.58998
2012 Soil Inorganic N 2012-10-24 F105 F5 1 1.691 0.614 15.829608
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