Exploring relevance of agro input dealers in disseminating and communicating of soil fertility management knowledge: The case of Siaya and Trans Nzoia counties, Kenya. - Etyang, T.B.; Okello, J.J.; Zingore, Shamie; Okth, P.F.; Mairura, Franklin S.; Mureith, A.; Waswa, Boaz Shaban (2014)