PT - JOURNAL ARTICLE AU - D.D. Francis TI - Control mechanisms to reduce fertilizer nitrogen movement into groundwater DP - 1992 Nov 01 TA - Journal of Soil and Water Conservation PG - 444--448 VI - 47 IP - 6 4099 - http://www.jswconline.org/content/47/6/444.short 4100 - http://www.jswconline.org/content/47/6/444.full