TY - BOOK AU - Syltie,Paul W. TI - How soils work: a study into the God-plane mutualism of soils and crops SN - 1591600952 AV - ORG S596.7 S95 2002 PY - 2002/// CY - Fairfax, VA PB - Xulon Press, KW - Crops and soils N1 - Includes bibliographical references (p. 139-156) and index ER -