2a Corn Extensification
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资源简介：
This dataset is a combination of data from the USDA National Statistics Service, Economic Research Service and Conservation Reserve Programme. It has been processed to provide a basis for modelling change in acreage of corn planted at the county level. It factors in a county's suitability for growing corn, competition from other commodities, GM uptake and commodity price over the period 1990-2017.
创建时间：
2019-10-29
