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Agronomic Yields - Annual Crops

Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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 for corn, soy and wheat from the Main Cropping System Experiment at the LTER Main Site as collected with commercial sized equipment.

Prior to 2017 the yield was reported from the east half of the plot. In 2017 the protocol was changed to report the yield for the whole plot.

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: July 1989 to October 2020
Dataset: KBS020
Datatable ID: KBS020-001.49
Core Areas Primary Production,Disturbance
Repository link: http://doi.org/10.6073/pasta/00c3343378bf55e0727cccecc8a8ff41
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Last Updated 2021-01-11
Variate Description Units
Date harvest date
Treatment treatment
Replicate replicate
Crop crop species collected
Yield bu A crop kernel/seed harvested at crop harvest in bu/A (at standardized moisture for corn 15.5%, wheat/soybean 13%; conversions for corn: 56 pounds/bushel wheat/soybeans: 60 pounds/bushel) bu/ac
Yield kg ha crop kernel/seed harvested at crop harvest in kg/ha (at standardized moisture for corn 15.5%, wheat/soybean 13%) kg/ha
Year crop year

Data Excerpt

date treatment replicate crop yield_bu_a yield_kg_ha year
2020-10-31 T3 R6 Zea mays L. (*) 114.8 7204.4 2020.0
2020-10-31 T4 R1 Zea mays L. (*) 110.8 6950.3 2020.0
2020-10-31 T2 R4 Zea mays L. (*) 168.3 10557.2 2020.0
2020-10-31 T3 R3 Zea mays L. (*) 131.6 8257.1 2020.0
2020-10-31 T4 R2 Zea mays L. (*) 110.5 6930.9 2020.0
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