PT  - JOURNAL ARTICLE
AU  - Roka, Fritz M.
AU  - Levins, Richard A.
AU  - Lessley, Billy V.
AU  - Magette, William L.
TI  - Reducing field losses of nitrogen: Is erosion control enough?
DP  - 1990 Jan 01
TA  - Journal of Soil and Water Conservation
PG  - 144--147
VI  - 45
IP  - 1
4099  - http://www.jswconline.org/content/45/1/144.short
4100  - http://www.jswconline.org/content/45/1/144.full
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.