Gachimbi, L. N. Participatory diagnosis of soil nutrient depletion in Semi-Arid areas of Kenya - London : IIED-Drylands pPogramme, 2002 - 15p. : ill. ; 21cm. - Managing Africa's Soils; 26 . Subjects--Topical Terms: Arid regions agricultureCropping systemsSoil managementIndustries LC Class. No.: EAF PAM S616.K4P37 No.26