na INLIS000000000013005 Ind 0010-1118013005 Soil fertility management in support of food security in Sub-Saharan Africa FOOD AND AGRICULTURE ORGANIZATION FAO Food and Agriculture Organization Rome FAO 2001 ix, 55 p. : ill. ; 29 cm.-- ix, 55 p. : ill. ; 29 cm.-- ISBN 92-5-104563-1 FAO 631.452(1-926.8)FOOs Bibl.: p. 51-55 631.452(1-926.8) SOIL FERTILITY SOIL MANAGEMENT FOOD SECURITY AFRICA SOUTH OF SAHARA 24/FAO/2002