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Decline in crop yields is a major problem facing smallholder farmers in Kenya and the entire Sub-Saharan region. This is attributed mainly to the mining of major nutrients due to continuous cropping without addition of adequate external nutrients. In most cases inorganic fertilizers are expensive...


Kimetu, J.M.Mugendi, DNPalm, C.A.Mutuo, PKGachengo, CNBationo, B. André[Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with organic nitrogen source in Central Kenya]Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with organic nitrogen source in Central Kenya
Vitousek, P.M.Naylor, RLCrews, TDavid, M.B.Drinkwater, L.E.Holland, EJohnes, PJKatzenberger, JMartinelli, LAMatson, PANziguheba, GeneroseOjima, DSPalm, C.A.Robertson, GPSánchez, P.A.Townsend, ARZhang, FS[Nutrient Imbalances in agricultural development]Nutrient Imbalances in agricultural development

The application of nitrogen in a soil under agricultural production is subject to several pathways including de-nitrification, leaching and recovery by an annual crop. This is as well greatly influenced by the management practices, nitrogen source and soil conditions. The main objective of this s...


Kimetu, J.M.Mugendi, DNBationo, B. AndréPalm, C.A.Mutuo, PKKihara, JobNandwa, SMGiller, Ken E.[Partial balance of nitrogen in a maize cropping systems in humic nitisol of Central Kenya]Partial balance of nitrogen in a maize cropping systems in humic nitisol of Central Kenya
Okalebo, JRPalm, C.A.Lekasi, JKNandwa, SMOthieno, COWaigwa, MNdung'u-Magiroi, Keziah Wairimu[Use of organic and inorganic resources to increase maize yields in some Kenyan infertile soils: a five-year experience]Use of organic and inorganic resources to increase maize yields in some Kenyan infertile soils: a five-year experience
Nziguheba, GeneroseMerckx, R.Palm, C.A.Mutuo, P[Combined use of Tithonia diversifolia and inorganic fertilizers for improving maize production in a phosphorus deficient soil in Western Kenya]Combined use of Tithonia diversifolia and inorganic fertilizers for improving maize production in a phosphorus deficient soil in Western Kenya
Kimetu, J.M.Mugendi, DNPalm, C.A.Mutuo, PKGachengo, CNNandwa, SMKung'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
Ojiem, JOPalm, C.A.Okwuosa, EAMudeheri, MA[Effect of combining organic and inorganic phosphorus sources on maize grain yield in a humic-nitisol in Western Kenya]Effect of combining organic and inorganic phosphorus sources on maize grain yield in a humic-nitisol in Western Kenya

Declines in soil fertility and limited access to inorganic nitrogen (N) fertilizer constrain crop production in Sub-Saharan Africa. The incorporation of organic residues could increase nutrient mineralization and replenish soil carbon (C), however, the effect that long-term residue management (10...


Sprunger, C.D.Culman, S.W.Palm, C.A.Thuita, Moses N.Vanlauwe, Bernard[Long-term application of low C:N residues enhances maize yield and soil nutrient pools across Kenya]Long-term application of low C:N residues enhances maize yield and soil nutrient pools across Kenya

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