Kimetu, J.M.
,
Mugendi, DN
,
Palm, C.A.
,
Mutuo, PK
,
Gachengo, CN
,
Nandwa, SM
,
Kung'u, J.B.
,
[Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya]
,
Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya