K. Kimani S, M. Macharia J, Gachengo C, A. Palm C, J. Delve R. Maize production in the central Kenya highlands using cattle manures combined with modest amounts of mineral fertilizer. UJAS [Internet]. 2004 Sep. 21 [cited 2024 May 11];9(1):480-9. Available from: http://journal.naro.go.ug/index.php/ujas/article/view/255