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Vitousek, P.M.Naylor, RLCrews, TDavid, M.B.Drinkwater, L.E.Holland, EJohnes, PJKatzenberger, JMartinelli, LAMatson, PANziguheba, GeneroseOjima, DSPalm, C.A.Robertson, GPSánchez, P.A.Townsend, ARZhang, FS[Nutrient Imbalances in agricultural development]Nutrient Imbalances in agricultural development

This study evaluated the performance of tree legumes and other soil fertility management innovations used by farmers. The objectives of the study were to: examine the extent that farm attributes, typology of farmers and field management practices have affected the adaptation and use of agroforest...


Akinnifesi, F.K.Sileshi, Gudeta W.Franzel, StevenAjayi, Oluyede C.Harawa, RMakumba, WChakeredza, S.Mngomba, SWolf, J.J. deChianu, J.N.[On-farm assessment of legume fallows and other soil fertility management options used by smallholder farmers in Southern Malawi]On-farm assessment of legume fallows and other soil fertility management options used by smallholder farmers in Southern Malawi

Low soil fertility is a fundamental constraint to crop production in western Kenya. Although researchers have developed many soil fertility-improving technologies, the adoption of these technologies is low due to inadequate awareness of the technologies, poor access to requisite resources and uns...


Odendo, MOjiem, JBationo, B. AndréMudeheri, MA[On-farm evaluation and scaling-up of soil fertility management technologies in Western Kenya]On-farm evaluation and scaling-up of soil fertility management technologies in Western 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

Maintenance of soil organic matter (SOM) at levels that sustain optimal supply of soil nutrients and enhance efficiency of externally added fertilizers is a major challenge for smallholder farming systems of southern Africa. A study was conducted to quantify the interactive effects of organic res...


Mapfumo, PaulMtambanengwe, F.Vanlauwe, Bernard[Organic matter quality and management effects on enrichment of soil organic matter fractions in contrasting soils in Zimbabwe]Organic matter quality and management effects on enrichment of soil organic matter fractions in contrasting soils in Zimbabwe

Organic C inputs and their rate of stabilization influence C sequestration and nutrient cycling in soils. This study was undertaken to explore the influence of the combined application of different quality organic resources (ORs) with N fertilizers on the link between aggregate dynamics and soil ...


Chivenge, P.P.Vanlauwe, BernardGentile, RSix, Johan[Organic resource quality influences short-term aggregate dynamics and soil organic carbon and nitrogen accumulation]Organic resource quality influences short-term aggregate dynamics and soil organic carbon and nitrogen accumulation

Maize is becoming the major food crop around Lake Victoria. Major constraints to its production are Striga, stem borer, and declining soil fertility. Innovative integrated technologies have been developed: the push pull system (intercropping with Desmodium and surrounded by Napier grass), soybe...


Groot, Hugo deRutto, EOdhiambo, GKanampui, FKhan, Z.R.Coe, R.Vanlauwe, Bernard[Participatory evaluation of integrated pest and soil fertility management options using ordered categorical data analysis]Participatory evaluation of integrated pest and soil fertility management options using ordered categorical data analysis

Potential N (SN) and P (SP) supplies, N and P utilization efficiencies and fertilizer recovery rates for the northern Guinea Savanna (NGS) agro-ecological zone of Nigeria were derived from data collected on farmers fields, and used as input in the QUantitative Evaluation of the Fertility of Trop...


Tabi, FODiels, J.Ogunkunle, AOIwuafor, E.N.O.Vanlauwe, BernardSanginga, Nteranya[Potential nutrient supply, nutrient utilization efficiencies, fertilizer recovery rates and maize yield in northern Nigeria]Potential nutrient supply, nutrient utilization efficiencies, fertilizer recovery rates and maize yield in northern Nigeria

Lantana camara L., Senna hirsuta (L.) Irwin & Barneby, Tithonia diversifolia (Hemsl.) A. Gray, and Aspilia kotschyi du Petit-Thouars occur naturally in eastern and central Uganda. Trimmings of these species were evaluated for effectiveness in improving soil productivity. The plant trimmings varie...


Kayuki, KCWortmann, Charles S.[Plant materials for soil fertility management in subhumid tropical areas]Plant materials for soil fertility management in subhumid tropical areas

Persistent food insecurity accompanied by low and declining farm household incomes are a common feature of many small holder maize and bean producers in western Kenya. This has been largely attributed to soil nutrient depletion, among other factors. One way of addressing soil fertility problems i...


Maithya, JMKimenye, L.N.Mugivane, FIRamisch, Joshua J.[Profitability of agro-forestry based soil fertility management technologies : The case of small holder food production in Western Kenya]Profitability of agro-forestry based soil fertility management technologies : The case of small holder food production in Western Kenya

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