Soil Test Lab Analyses - Agronomic
Analytical results from the MSU Soil Test Lab on soil samples taken periodically from the Resource Gradient Experiment to determine fertilizer recommendations.
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:||September 2011 to October 2017|
|Core Areas||Inorganic Nutrients,Disturbance|
|site||experimental site that was sampled|
|sample date||date the sample was taken|
|treatment||treatment where the sample was taken from|
|replicate||replicate plot the sample was taken from|
|irrigated||true if the plot is irrigated, false if it is not|
|p||phosphorus in ppm||µg/kg|
|k||potassium in ppm||mg/kg|
|ca||calcium in ppm||µg/kg|
|mg||magnesium in ppm||mg/kg|
|lime index||the lime index|
|cec||estimated cation exchange capacity meq/100g|
|KBS Agronomic Soil Chemistry|
|Resource Gradient Experiment||2011-09-07||104||F4||R1||false||6.8||21.0||48.0||649.0||167.0|
|Resource Gradient Experiment||2011-09-07||709||F1||R3||true||6.8||20.0||56.0||846.0||180.0|
|Resource Gradient Experiment||2011-09-07||806||F2||R4||true||6.8||19.0||87.0||780.0||176.0|
|Resource Gradient Experiment||2011-09-07||605||F3||R2||true||6.8||24.0||67.0||716.0||130.0|
|Resource Gradient Experiment||2011-09-07||101||F1||R1||false||6.5||29.0||63.0||422.0||83.0||70.0|