Agronomic Yields - Weed and Fertilizer Microplots — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
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.
Note
| 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 |
| Repository link: | http://doi.org/10.6073/pasta/00c3343378bf55e0727cccecc8a8ff41 |
| Related Tables: | |
| Personnel: |
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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 |
| Protocols |
|---|
| 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 |