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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
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

Organic resources (ORs) are essential inputs in tropical farming systems and their decomposition dynamics are related to their quality. A Decision Support System (DSS) for organic N management has been proposed earlier that subdivides ORs in four classes depending on their N, lignin, and soluble ...


Vanlauwe, BernardGachengo, CNShepherd, Keith D.Barrios, E.Cadisch, GeorgPalm, C.A.[Laboratory validation of a resource quality-based conceptual framework for organic matter management]Laboratory validation of a resource quality-based conceptual framework for organic matter management
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

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