RT Journal Article SR Electronic T1 How good is good enough JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 92A OP 101A VO 57 IS 4 A1 P. Heilman A1 J.L. Hatfield A1 K. Rojas A1 L. Ma A1 J. Huddleston A1 L. Ahuja A1 M. Adkins YR 2002 UL http://www.jswconline.org/content/57/4/92A.abstract AB