Integrated plant nutrient management in sub-Saharan Africa : from concept to practice / edited by B. Vanlauwe ...[et al.]. - Oxon, OX : CABI Publishing, 2001. - xiv, 352 p. ; 24 cm, Includes indexes (p. 339-352) Open access. ISBN: 0851995764 Subjects--Topical Terms: Soil fertility--African, Sub-Saharan.Fertilizer--Africa, Sub-Saharan.Crops--Africa, Sub-Saharan--Nutrition.Plant nutrients--Africa, Sub-Saharan.