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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

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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