RT Journal Article SR Electronic T1 Predictors of feld-scale variation of soil phosphorus JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 153A OP 153A VO 62 IS 6 A1 Sheilah C. Nolan A1 Joanne L. Little A1 Janna P. Casson A1 Frank J. Hecker A1 Barry M. Olson YR 2007 UL http://www.jswconline.org/content/62/6/153A.abstract AB