Analysis of spatial variation of soil fertility gradients in smallholdings in tropical Africa using geostatical techniques: case studies from Vihiga and Siaya Districts of Western Kenya

Okeyo, Jeremiah M.; Shisanya, C.A.; Wamicha, W.N.; Shepherd, Keith D. 2007. Analysis of spatial variation of soil fertility gradients in smallholdings in tropical Africa using geostatical techniques : Case studies from Vihiga and Siaya Districts of Western Kenya [abstract] [online]. In: Bationo, André; Okeyo, Jeremiah M.; Waswa, Boaz S.; Mapfumo, Paul; Maina, Fredah; Kihara, Job (eds.). Innovations as key to the green revolution in Africa: Exploring the scientific facts: Abstracts: Symposium [online]. Centro Internacional de Agricultura Tropical (CIAT), Tropical Soil Biology and Fertility (TSBF), Nairobi, KE. p. 131.