Soil pH

Soil pH measurements from soils of the Resource Gradient Experiment.

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.

Note

Experiment: Resource Gradient Experiment
Data available from: September 2011 to October 2016
Dataset: KBS033
Datatable ID: KBS033-006.53
Core Areas Inorganic Nutrients,Disturbance
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Last Updated 2017-01-26
Variate Description Units
site site that was sampled
sample date date the sample was taken from the field
plot plot id that was sampled
treatment treatment the sample was taken from
replicate replicate the sample was taken from
irrigated true if the plot was irrigated, false if it was rainfed
ph pH measured dimensionless
sample type type of sample measured, whether it was field moist or dired soil.

Data Excerpt

site sample_date plot treatment replicate irrigated ph sample_type
Resource Gradient Experiment 2017-10-30 501 F1 R1 t 6.88 field moist
Resource Gradient Experiment 2014-12-08 604 F5 R2 t 6.8 field moist
Resource Gradient Experiment 2015-10-20 208 F4 R2 f 6.72 field moist
Resource Gradient Experiment 2016-10-21 507 F7 R1 t 7.27 field moist
Resource Gradient Experiment 2013-10-29 602 F2 R2 t 6.69 field moist
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