RT Journal Article SR Electronic T1 USDA water quality projects and the National Institute of Food and Agriculture Conservation Effects Assessment Project watershed studies JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 142A OP 146A DO 10.2489/jswc.65.6.142A VO 65 IS 6 A1 Osmond, Deanna L. YR 2010 UL http://www.jswconline.org/content/65/6/142A.abstract AB