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Current typical annual fertilization rates (1 kg/ha/yr = 1.1 lbs/ac/yr) in irrigated agricultural cropland of<\/span><\/p>

the study area derived from the literature, United States Department of Agriculture (USDA) Chemical Usage Reports, and agricultural cost and return studies for each of 58 crop categories (does not include manure applications). Rates account for multi-cropping in some vegetable crops and double-cropping of corn and winter grain. Spatial distribution of crop categories based on CAML data (see Section 3).<\/span><\/p>

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Current typical annual fertilization rates (1 kg/ha/yr = 1.1 lbs/ac/yr) in irrigated agricultural cropland of<\/SPAN><\/P>

the study area derived from the literature, United States Department of Agriculture (USDA) Chemical Usage Reports, and agricultural cost and return studies for each of 58 crop categories (does not include manure applications). Rates account for multi-cropping in some vegetable crops and double-cropping of corn and winter grain. Spatial distribution of crop categories based on CAML data (see Section 3).<\/SPAN><\/P>

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