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Spatial Variation in Soil Organic Carbon within Smallholder Farms in Western Kenya: A geospatial Approach

Shisanya, C.A.; Okeyo, J.M.; Shepherd, K. D.; Wamicha, W. N. (2006)

In many farming landscapes across Sub-Saharan Africa (SSA), soil fertility has been on the decline with significant implications on crop productivity. However, even with such a decline, soil nutrient levels still differ ...

Population Levels of Indigenous Bradyrhizobia Nodulating Promiscuous Soybean in two Kenyan Soils of the Semi-arid and Semi-humid Agroecological Zones

Maingi, J.M.; Gitonga, Nkanata Mburugu; Shisanya, C.A.; Hornetz, Berthold; Muluvi, G. M. (2006)

Soybeans grown in Africa have been selected to nodulate effectively with indigenous Bradyrhizobium spp. populations since Bradyrhizobium japonicum populations are considered absent or in very low numbers in African soils. ...