Trees, Crops and Soil Fertility Concepts and Research Methods edited by G. Schroth and F.L. Sinclair - Wallingford CABI Publishing 2003 - xii, 437p. ISBN: 0851995934 Subjects--Topical Terms: Soil Fertility Agroforestry LC Class. No.: S 596.7 / .T74 2003 c.1