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Date: 2012-06-22 13:17:42Food and drink Agriculture Crops Agricultural soil science Agronomy Energy crops Staple foods Summer fallow Agricultural land Crop rotation Maize Cover crop | Amber Waves, July 2006, Special Issue, Estimating U.S. Cropland AreaAdd to Reading ListSource URL: ageconsearch.umn.eduDownload Document from Source WebsiteFile Size: 108,46 KBShare Document on Facebook |