Moving from Uniform to Variable Fertilizer Rates on Iowa Corn: Effects on Rates and Returns

Bruce Babcock and Gregory R. Pautsch

Staff General Research Papers Archive from Iowa State University, Department of Economics

Abstract: This study develops a model based on the yield potential of various soil types in 12 Iowa counties to estimate the potential value of switching from uniform to variable fertilizer rates. Results indicate modest increases in the gross returns over fertilizer costs, ranging from $7.43 to $1.52 per acre. The net profitability of variable-rate technology (VRT) is sensitive to the per acre costs of moving to a VRT program. Under the assumptions of the model, applying variable rates would increase yield by 0.05 to 0.50 bushels per acre, and would reduce fertilizer costs by $1.19 to $8.83 per acre.

Date: 1998-01-01
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Published in Journal of Agricultural and Resource Economics 1998, vol. 23 no. 2, pp. 385-400

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Related works:
Journal Article: MOVING FROM UNIFORM TO VARIABLE FERTILIZER RATES ON IOWA CORN: EFFECTS ON RATES AND RETURNS (1998)
Working Paper: Moving from Uniform to Variable Fertilizer Rates on Iowa Corn: Effects on Rates and Returns (1998)
Working Paper: Moving from Uniform to Variable Fertilizer Rates on Iowa Corn: Effects on Rates and Returns (1997)
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