Soil pH — Resource Gradient Experiment

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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 November 2019
Dataset:	KBS033
Datatable ID:	KBS033-006.91
Core Areas	Inorganic Nutrients,Disturbance
Repository link:	http://doi.org/10.6073/pasta/b87efd66b937c806061635e752862d8a
Related Tables:	Agronomic Yields Agronomic Yields - Irrigated Soil Inorganic Nitrogen, Moisture and Temperature Soil Test Lab Analyses - Agronomic Soil Inorganic N and Gravimetric Moisture Soil Bulk Density
Personnel:	Phil Robertson, lead investigator Neville Millar, principal contact
Last Updated	2020-07-10

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.

Protocols
Resource Gradient Experiment: Fertilizer Treatment Descriptions

Download complete data table The standard data use policy applies to the this dataset

Data Excerpt

site	sample_date	plot	treatment	replicate	irrigated	ph	sample_type
Resource Gradient Experiment	2015-10-20	201	F7	R2	false	6.39	field moist
Resource Gradient Experiment	2017-10-30	307	F7	R3	false	6.5	dried
Resource Gradient Experiment	2016-10-21	407	F3	R4	false	6.63	field moist
Resource Gradient Experiment	2013-10-29	107	F7	R1	false	6.01	field moist
Resource Gradient Experiment	2019-11-04	105	F5	R1	false	5.8	dried

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