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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

Soil nutrient depletion as a result of continuous cultivation of soils without adequate addition of external inputs is a major challenge in the highlands of Kenya. An experiment was set up in Meru South District, Kenya in 2000 to investigate the effects of different soil-incorporated organic (man...


Mucheru-Muna, M.Mugendi, DNKung'u, J.B.Mugwe, JBationo, B. André[Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping systems in Meru South District, Kenya]Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping systems in Meru South District, Kenya
Chivenge, P.P.Vanlauwe, BernardGentile, RWangechi, HKMugendi, DNKessel, Chris vanSix, Johan[Organic and mineral input management to enhance crop productivity in Central Kenya]Organic and mineral input management to enhance crop productivity in Central Kenya
Kimani, S.K.Nandwa, SMMugendi, DNObanyi, S.N.Ojiem, JMurwira, HKBationo, B. André[Principles of integrated soil fertility management]Principles of integrated soil fertility management

Low inherent soil fertility in the highly weathered and leached soils largely accounts for low and unsustained crop yields in most African countries. But in particular, the major nutrients, nitrogen (N) and phosphorus (P), are commonly deficient in these soils. This scenario of nutrient depletion...


Okalebo, JROthieno, COWoomer, P.L.Karanja, NKNSemoka, JMRBekunda, Mateete A.Mugendi, DNMuasya, RMBationo, B. AndréMukhwana, EJ[Available technologies to replenish soil fertility in East Africa]Available technologies to replenish soil fertility in East Africa

Declining soil fertility is a major cause of low per capita food production on smallholder farms of sub-Saharan Africa. This study attempted to provide an empirical explanation of the factors associated with farmers’ decisions to adopt or not to adopt newly introduced integrated soil fertility ma...


Mugwe, JMugendi, DNMucheru-Muna, M.Merckx, R.Chianu, J.N.Vanlauwe, Bernard[Determinants of the decision to adopt integrated soil fertility management practices by smallholder farmers in the central highlands of Kenya]Determinants of the decision to adopt integrated soil fertility management practices by smallholder farmers in the central highlands of Kenya

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