PT - JOURNAL ARTICLE AU - D. E. Smika AU - E. David Sharman TI - Atrazine carryover in conservation tillage systems DP - 1983 May 01 TA - Journal of Soil and Water Conservation PG - 239--239 VI - 38 IP - 3 4099 - http://www.jswconline.org/content/38/3/239.short 4100 - http://www.jswconline.org/content/38/3/239.full