Major upland soils in the humid and sub humid zones of West Africa consist of low activity clays (LAC) Alfisols, Ultisols and Oxisols. Alfisols which are less leached and have a high base saturation are more dominant in the sub-humid zone. Chemically they are more fertile, but they have a low str...
Enlace original:
https://cgspace.cgiar.org/handle/10568/101726
Kanno, H.
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Dixon, A.
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Asiedu, Robert
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Hahn, S.K.
,
[Host plant resistance of cassava green spider mite (CGM) (Mononychellus tanajoa Bondar) at IITA]
,
Host plant resistance of cassava green spider mite (CGM) (Mononychellus tanajoa Bondar) at IITA