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concentrations of organic material and nitrogen.

As of 2008, the top four corn-producing states were Iowa, Illinois, Nebraska, and Minnesota, accounting for more than half of the corn growth in the U.S.

More recently, the Corn Belt was mapped at the county level using the Land use and Agricultural Management Practices web-Service (LAMPS), along with animated maps of changes in time (2010-2016).

History

William Scully

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