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The combined application of cattle manure and inorganic fertilizer has been widely recommended in the context of integrated soil fertility management (ISFM) on smallholder farms in sub-Saharan Africa (SSA). However, the conditions under which this combination (hereafter ISFM) improves nutrient an...


Sileshi, Gudeta W.Jama, B.Vanlauwe, BernardNegassa, W.Harawa, R.Kiwia, A.Kimani, D.[Nutrient use efficiency and crop yield response to the combined application of cattle manure and inorganic fertilizer in sub-Saharan Africa]Nutrient use efficiency and crop yield response to the combined application of cattle manure and inorganic fertilizer in sub-Saharan Africa
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

Banana is an increasingly demanded food and cash crop in sub-Saharan Africa. Reported yields in smallholder farms vary substantially. The importance and spread of yield constraints have not been properly quantified. A study was carried out in Central Kenya to (i) quantify the yield levels, the pr...


Okumu, MOAsten, Piet J.A. vanKahangi, EMOkech, SHJefwa, J.M.Vanlauwe, Bernard[Production gradients in smallholder banana (cv. Giant Cavendish) farms in Central Kenya]Production gradients in smallholder banana (cv. Giant Cavendish) farms in Central Kenya

Organic resources constitute a major source of nutrient inputs to both soils and livestock in smallholder tropical production systems. Determination of resource quality attributes using current laboratory methods is both timely and costly. This study tested visible and near-infrared (wavelengths ...


Shepherd, Keith D.Palm, C.A.Gachengo, CNVanlauwe, Bernard[Rapid characterization of organic resource quality for soil and livestock management in tropical agroecosystems using near-infrared spectroscopy]Rapid characterization of organic resource quality for soil and livestock management in tropical agroecosystems using near-infrared spectroscopy
Vandeplas, IVanlauwe, BernardDriessens, LMerckx, R.Deckers, J.[Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya]Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya

The following nine main cropping systems were evaluated: maize/maize in rotation without N-fertilizer (control); maize/cowpea in rotation where maize received N-fertilizer; maize/pigeonpea intercropping without N-fertilizer; maize/cowpea/pigeonpea in rotation where maize received N-fertilizer; ma...


Aihou, K.Sanginga, NteranyaVanlauwe, BernardDiels, J.Merkx, RCleemput, O. van[Restoration of terre de barre fertility using pigeonpea grown in rotation or intercropping with maize in the derived savanna of Benin]Restoration of terre de barre fertility using pigeonpea grown in rotation or intercropping with maize in the derived savanna of Benin

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