Economics, Center for Agricultural and Rural Development
Journal or Book Title
Journal of Agricultural and Resource Economics
First Page or Article ID Number
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 $6.83 per acre.
Western Agricultural Economics Association
Babcock, Bruce A. and Pautsch, Gregory R., "Moving from Uniform to Variable Fertilizer Rates on Iowa Corn: Effects on Rates and Returns" (1998). Economics Publications. 535.