PT - JOURNAL ARTICLE AU - Gyles Randall AU - Jeffrey Vetsch TI - Optimum placement of phosphorus for corn/soybean rotations in a strip-tillage system AID - 10.2489/jswc.63.5.152A DP - 2008 Sep 01 TA - Journal of Soil and Water Conservation PG - 152A--153A VI - 63 IP - 5 4099 - http://www.jswconline.org/content/63/5/152A.short 4100 - http://www.jswconline.org/content/63/5/152A.full