RT Journal Article SR Electronic T1 Reducing field losses of nitrogen: Is erosion control enough? JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 144 OP 147 VO 45 IS 1 A1 Fritz M. Roka A1 Richard A. Levins A1 Billy V. Lessley A1 William L. Magette YR 1990 UL http://www.jswconline.org/content/45/1/144.abstract AB Reducing nitrogen (N) losses in surface runoff from a representative farm on the Upper Eastern Shore of Maryland is shown to be compatible with traditional methods of soil erosion control. Cropping adjustments that reduced erosion also reduced field losses of surface N. Analysis of potential methods to reduce nitrate percolation losses, however, showed that large reductions in nitrate percolation losses were achieved by shifting from corn to soybeans and from no-till practices to conventional tillage management, thereby increasing surface losses of soil and N.