Agronomic Yields of the Weed and Fertilizer Study — Main Cropping System Experiment (MCSE)
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Agronomic grain yields of corn, soybean, and wheat, at standard moisture, from the Weed and Fertlizer Study in MCSE Treatments 3 and 4 microplots.
This datatable is part of the Weed and Fertilizer Study in T3 and T4 dataset.
A microplot study was conducted in the Reduced input (T3) and Biologically based (T4) treatments of the LTER Main Cropping System Experiment (2006-2014) to examine the effect of weed control and fertilization on crop yields. Microplot treatments were a factorial combination of 3 weed control strategies and 2 fertilization levels for a total of 6 microplots, each 15 ft wide (E-W) by 50 ft long (N-S) and randomly assigned within a block in the northwest corner of each replicate (R1-R6). Weed control strategies included: Business as Usual (BAU, same weed control as the main T3 or T4 plots); Weed Free (no weeds allowed to become established); and No Weed Control (no form of weed control). Fertilizer was applied at two levels: Fertilized (same level as applied to the Conventional T1 main plots) and Unfertilized (no fertilizer applied).
Note
Experiment: | Main Cropping System Experiment (MCSE) |
Data available from: | October 2006 to November 2014 |
Dataset: | KBS150 |
Datatable ID: | KBS020-004.17 |
Core Areas | Primary Production,Disturbance |
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Last Updated | 2024-04-25 |
Variate | Description | Units |
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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 |
Protocols |
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Data Excerpt
sample_date | treatment | replicate | weed_control | fertilizer_treatment | crop | yield_bu_a | yield_kg_ha |
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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 |