How soils work :
Syltie, Paul W.
How soils work : a study into the God-plane mutualism of soils and crops / by Paul W. Syltie. - Fairfax, VA : Xulon Press, c2002. - xxi, 165 p. : ill., maps ; 24 cm.
Includes bibliographical references (p. 139-156) and index.
1591600952
Crops and soils.
ORG S596.7 / S95 2002
How soils work : a study into the God-plane mutualism of soils and crops / by Paul W. Syltie. - Fairfax, VA : Xulon Press, c2002. - xxi, 165 p. : ill., maps ; 24 cm.
Includes bibliographical references (p. 139-156) and index.
1591600952
Crops and soils.
ORG S596.7 / S95 2002