Agronomic Yields - Weed and Fertilizer Microplots — Main Cropping System Experiment (MCSE)

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Annual crop harvest data of corn, soy and wheat in Weed and Fertilized Microplots in Treatments 3 and 4 of the Main Cropping System Experiment at the LTER Main Site. Microplots were established to determine the effect of normal weed control and fertilization practices and the response to removing weed and nutrient limitations from the plots.

This datatable is part of the Agronomic Yields in Row Crop Agriculture dataset. This data set contains information about agronomic yields for the Main Cropping System Experiment which include treatments 1-4 (corn – wheat – soybean rotations) and after 1994 treatment 6 (alfalfa). Agronomic yields are measured during normal crop harvest; yields are determined by machine harvesters appropriate to each crop as described in the Agronomic protocol.


Experiment: Main Cropping System Experiment (MCSE)
Data available from: October 2006 to November 2014
Dataset: KBS020
Datatable ID: KBS020-004.69
Core Areas Primary Production,Disturbance
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Last Updated 2020-07-10
Variate Description Units
sample date harvest date
treatment treatment
replicate replicate
weed control weed control treatment (BAU = 'business as usual', Weed Free='additional weed control', No control = ' no weed control')
fertilizer treatment indicates if the plot was fertilized.
crop crop grown on the plot
yield bu a agronomic yield in bushel per acre at standard moistures bu/ac
yield kg ha agronomic yield in kilograms per hectare at standard moistures kg/ha
Agronomic Yields

Data Excerpt

sample_date treatment replicate weed_control fertilizer_treatment crop yield_bu_a yield_kg_ha
2014-11-05 T4 R3 Weed Free fertilized Corn 98.20101 6161.1875
2014-11-05 T4 R3 Weed Free unfertilized Corn 36.96377 2319.128
2014-11-05 T4 R3 BAU fertilized Corn 145.32443 9117.737
2014-11-05 T4 R3 BAU unfertilized Corn 130.99731 8218.846
2014-11-05 T4 R3 No control fertilized Corn 70.032 4393.847
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