Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya

Kimetu, J.M.; Mugendi, Daniel N.; Palm, Cheryl Ann; Mutuo, P.K.; Gachengo, Catherine N.; Nandwa, S.M.; KungŽu, James B. 2003. Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya. In: Bationo, André (ed.). Managing nutrient cycles to sustain soil fertility in sub-Saharan Africa. Academy Science Publishers (ASP); Centro Internacional de Agricultura Tropical (CIAT), Nairobi, KE. p. 207-224.