Agronomic Soil Chemistry — GLBRC Biofuel Cropping System Experiment

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use

Soil samples are taken annually (usually in the Fall) for fertilizer recommendations and analyzed for pH, lime index, phosphorus, potassium, calcium, magnesium, cation exchange capacity and organic matter.

KBS samples are analyzed by the Michigan State University Soil and Plant Nutrient Laboratory .

This datatable is part of the KBS GLBRC soil properties dataset.

Soil property measurements from the surface soils of the intensive experiment


Experiment: GLBRC Biofuel Cropping System Experiment
Data available from: November 2008 to December 2019
Dataset: KBS078
Datatable ID: KBS078-012.117
Core Areas Inorganic Nutrients,Disturbance
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Last Updated 2023-10-24
Variate Description Units
sample date date of soil sample collection
site experiment location
treatment experimental treatment
replicate replicate nested within treatment
top depth upper soil sampling depth
bottom depth lower soil sampling depth
ph pH of soil solution
lime index indicator of potential acidity
p ppm phosphorus concentration mg/kg
k ppm potassium concentration mg/kg
ca ppm calcium concentration mg/kg
mg ppm magnesium concentration mg/kg
main or microplot experiment where the soil was sampled from
comments notes specific to the data row

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Data Excerpt

sample_date site treatment replicate top_depth bottom_depth ph lime_index p_ppm k_ppm ca_ppm mg_ppm main_or_microplot comments
2022-11-16 KBS G1 R1 0 25 5.4 44.0 163.0 450.0 70.0 main
2022-11-16 KBS G1 R2 0 25 6.3 18.0 112.0 700.0 130.0 main
2022-11-16 KBS G1 R3 0 25 6.5 16.0 110.0 650.0 125.0 main
2022-11-16 KBS G1 R4 0 25 6.6 33.0 134.0 700.0 155.0 main
2022-11-16 KBS G1 R5 0 25 6.4 29.0 97.0 450.0 100.0 main
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