The management practices farmers choose have significant effect on agricultural pollution. The authors analyze the adoption of alternative combinations of conservation practices and their impacts on fertilizer use, corn yield, and soil erosion in the Central Nebraska Basin, using a polychotomous-choice selectivity model. The results suggest that soil N testing and corn-legume rotation complement each other, but that the interaction between conservation tillage and rotation is more complicated.
This working paper was published as Wu, Junjie and Bruce A. Babcock, "The Choice of Tillage, Rotation, and Soil Testing Practices: Economic and Environmental Implications," American Journal of Agricultural Economics 80 (1998): 494–511, doi:10.2307/1244552.
Wu, JunJie; Babcock, Bruce A.; and Lakshminarayan, P. G., "The Choice of Tillage, Rotation, and Soil Testing Practices: Economic and Environmental Implications" (1996). CARD Working Papers. 191.