more efficient under larger reductions. Phosphorus reductions at the subwatershed level vary but provide information about …

Agricultural nitrogen is a major contributor to Gulf of Mexico hypoxia, and research has shown that agricultural … subsurface tile drainage is a major carrier of nitrogen from croplands to streams and rivers. This study compares the results of … abating nitrogen under a retired-land minimization policy with those of a new revenue-maximizing policy, paying particular …

discharge of pesticide and nitrogen effluents into the environment. The agricultural-environmental technology is approximated …

technology is incorporated, and empirically calibrated simulation results are presented for the case of reduced-phosphorus dairy …