Socio-economic Factors, Soil Fertility Management and Cropping Practices in Mixed Farming Systems of Sub-Saharan Africa: A Study in Kiambu, Central Highlands of Kenya

D. D. Onduru, A. De Jager, F. N. Muchena, L. Gachimbi and G. N. Gachini

International Journal of Agricultural Research 2 ( 5 ): 426 - 439 , 2007