RT Journal Article SR Electronic T1 No-till can increase earthworm populations and rooting depths JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 13A OP 17A DO 10.2489/jswc.66.1.13A VO 66 IS 1 A1 W. Doral Kemper A1 Nicholas N. Schneider A1 Thomas R. Sinclair YR 2011 UL http://www.jswconline.org/content/66/1/13A.abstract AB