Nguluu, Simon N.; Gachimbi, L. N.; van Keulen, H.; Thuranira, E. G.; Karuku, A. M.; Ikombo, B. M.; Kinama, J. M.; Itabari, J. K.; Nandwa, S. M.; de Jager, A.
(Elsevier, 2005-01)
A total of 74 farms were selected from Machakos, Mwingi and Makueni districts in Kenya, using participatory techniques and classified in three categories on the basis of soil fertility management (low level, medium and ...