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Date: 2012-07-12 09:41:15Nitrogen metabolism Agriculture Agronomy Sustainable agriculture Functional groups Tillage Fertilizer No-till farming Nitrate Agricultural soil science Soil science Chemistry | Paul Kassel: 2007 Growing Season—CornAdd to Reading ListSource URL: www.extension.iastate.eduDownload Document from Source WebsiteFile Size: 109,55 KBShare Document on Facebook |
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