Strengthening researcher-extension-farmer participation in soil fertility restoration for sustainable crop production in western Kenya Author/Editor(s): Okalebo, J.R.Othieno, C.O.Gudu, S.O.Ngetich, W.Nekesa, A.O.Serem, C.Didier, L.Pypers, P.Vanlauwe, B.Merckx, R.Mbakaya, D.Jama, B.Adipala, E.Woomer, P.L.Amar, B.Osundwa, M.A.Ochuodho, J.Kipkoech, A.Date of publication: 2010RUFORUM Conferences and Workshops Read more about Strengthening researcher-extension-farmer participation in soil fertility restoration for sustainable crop production in western Kenya