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4366Auxiliary table 1.pdfPDF document520KSupporting Information Table S1: Table S1 contains data on crop-specific fertilization rates from three sources, with references cited therein.
4366Auxiliary table 2.pdfPDF document69KSupporting Information Table S2: Table S2 contains data on estimated fraction of crop residue returned to the soil after harvest. These data were estimated from a variety of sources, all cited within the file.
dynamic_content.htmlHTML document26KDynamic content 1. Motion chart for visualizing changes through time for user-selected regions, crops, and N-related agronomic metrics
dynamic_content_description.docxWord 2007 document15KSupporting information
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EconomicGroupings.gifapplication/gif36KSupporting information
RegionalGroupings.gifapplication/gif35KSupporting information
4366readme.pdfPDF document90KSupporting information

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