RT Journal Article SR Electronic T1 Corn response to tillage and water table depth JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 31A OP 36A DO 10.2489/jswc.67.2.31A VO 67 IS 2 A1 W. Doral Kemper A1 Charles E. Bongert A1 Daniel M. Marohn YR 2012 UL http://www.jswconline.org/content/67/2/31A.abstract AB