@article {Baker125, author = {David B. Baker}, title = {Regional water quality impacts of intensive row-crop agriculture: A Lake Erie Basin case study}, volume = {40}, number = {1}, pages = {125--132}, year = {1985}, publisher = {Soil and Water Conservation Society}, abstract = {Intensive row-crop agriculture dominates land use in the northwestern Ohio River basins draining into Lake Erie. Detailed, longterm studies of water quality in these rivers reveal high unit-area P loads entering Lake Erie, even though gross erosion rates are relatively low. Concentrations of nitrate-N and currently used herbicides are also high from May through July, both in surface waters and in public water supplies derived therefrom. To reduce P loading to Lake Erie, water quality management agencies are advocating adoption of conservation tillage. Conservation tillage could increase nitrate and herbicide contamination of area waters. This region{\textquoteright}s detailed baseline nutrient and herbicide data provide an opportunity to evaluate the effects of conservation tillage on a variety of water quality parameters. To separate weather-related from management-related effects, an ecosystem approach is advocated.}, issn = {0022-4561}, URL = {https://www.jswconline.org/content/40/1/125}, eprint = {https://www.jswconline.org/content/40/1/125.full.pdf}, journal = {Journal of Soil and Water Conservation} }