GLBRC Sustainability Data Catalog

Soil nitrogen and phosphorus data from Jach-Smith and Jackson (2020) — GLBRC Switchgrass Nitrogen Rate Experiment

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Soil nitrogen and phosphorus responses to zero, medium and high nitrogen application rates.

This datatable is part of the Switchgrass Nitrogen Rate Experiment dataset.

This dataset contains data from the Switchgrass Nitrogen Rate Experiment (formerly Nitrogen/Harvest) at the KBS GLBRC Intensive Field Site. Switchgrass is grown under 8 rates of nitrogen fertilization (F1-F8; 0-196 kg N/ha) with each treatment plot replicated in four blocks (R1-R4). From 2010–2012, the experiment also included split plots with two harvest strategies (H1, H2; 1 vs 2 harvests/yr) for each nitrogen treatment; from 2013 onward all split plots are harvested only once in the fall, with yields measured separately 2013-2022 and combined starting in 2023.


Experiment: GLBRC Switchgrass Nitrogen Rate Experiment
Data available from: June 2014 to August 2014
Dataset: GLBRC132
Datatable ID: GLBRC132-006.126
Core Areas Disturbance
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Last Updated 2023-10-24
Variate Description Units
sample date
site experimental site
nitrogen rate nitrogen application rate kg/ha
time point sampling time_point
final soil NO3 N measured NO3-N concentration in solution (ppm) µg/L
final soil NH4 N measured NH4-N concentration in solution (ppm) µg/L
soil total N µg/L
soil available P µg/L

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Data Excerpt

sample_date site plot nitrogen_rate timepoint final_soil_NO3_N final_soil_NH4_N soil_total_N soil_available_P
2014-06-11 ARS A403 0 1 0.39765638 2.1750598 2.5727162 17.0
2014-06-11 ARS A503 0 1 1.2094291 2.4248455 3.6342745 24.9
2014-07-15 ARS A103 0 2 0.21569912 3.3217664 3.5374656 8.5
2014-07-15 ARS A201 0 2 0.15423529 3.753059 3.907294 16.5
2014-07-15 ARS A403 0 2 0.43084896 3.4098618 3.8407109 12.6
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