Manure and Soil Fertility Management in Sub-Humid and Semi-Arid Farming Systems of Sub-Saharan Africa: Experiences from Kenya

D.D. Onduru, P. Snijders, F.N. Muchena, B. Wouters, A. De Jager, L. Gachimbi and G.N. Gachini

International Journal of Agricultural Research 3 ( 3 ): 166 - 187 , 2008