Long-term organic matter inputs enhance soil health and reduce soil-borne pathogen pressure in maize-bean rotations in Kenya von Mutai, Joyce C., Medvecky, Beth, Vanek, Steven J., Gikonyo, Esther W., Ojiem, John O., Fonte, Steven J.

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Evaluation of residual values of different fertilisers at various rates used in phosphorus recapitalisation of an acid tropical soil von Gikonyo, E.W, Zaharah, A.R, Hanafi, M.M, Anuar, A.R

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Yield Responses of Upland Rice Varieties to Low N Conditions in Central Kenya von Kagito, Sammy, Kikuta, Mayumi, Samejima, Hiroaki, Gweyi-Onyango, Joseph P., Gikonyo, Esther W., Gichuhi, Emily W., Menge, Daniel M., Kimani, John M., Yamauchi, Akira, Makihara, Daigo

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Comparison of soil phosphorus tests for assessing plant availability of phosphorus in an ultisol amended with water-soluble and phosphate rock sources von Gikonyo, Esther W, Zaharah, Abdul R, Hanafi, Mohamed M, Anuar, Rahim A

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Phosphorus leaching in an acid tropical soil "recapitalized" with phosphate rock and triple superphosphate von Gikonyo, Esther W, Zaharah, Abdul R, Hanafi, Mohamed M, Anuar, Rahim A

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