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This report presents the results of the baseline study undertaken to assess the status of Striga damage, the general livelihoods and livelihood strategies of the rural poor in western Kenya. A stratified random sampling method led to the selection of 8 districts, 16 sub-locations, 32 villages ...


Manyong, Victor M.Alene, Arega D.Olanrewaju, A.S.Ayedun, B.Rweyendela, V.Wesonga, A.S.Omanya, G.Mignouna, H.Bokanga, M.[Baseline study of Striga control using Imazapyr Resistant (IR) maize in Western Kenya]Baseline study of Striga control using Imazapyr Resistant (IR) maize in Western Kenya

Two sets of on-farm trials, each covering two years, were conducted in the northern Guinea savannah of Nigeria over the period 1999–2001, the objective being to compare integrated Striga hermonthica control measures (soybean or cowpea trap crops followed by maize resistant to Striga) with farmers...


Ellis-Jones, J.Schulz, S.Douthwaite, BoruHussaini, M.A.Oyewole, B.D.Olanrewaju, A.S.White, R.[An assessment of integrated Striga hermonthica control and early adoption by farmers in northern Nigeria]An assessment of integrated Striga hermonthica control and early adoption by farmers in northern Nigeria

The results are presented of a project to promote integrated Striga control (ISC) technologies to farmers in the Guinea savanna of northern Nigeria. Extension agents used a participatory research and extension approach (PREA) to encourage farmers to test and adopt ISC technologies. Over a 2-year ...


Franke, A.Ellis-Jones, J.Tarawali, G.Schulz, S.Hussaini, M.A.Kureh, I.White, R.Douthwaite, BoruOyewole, B.Olanrewaju, A.S.[Evaluating and scalingup integrated Striga hermonthica control technologies among farmers in northern Nigeria]Evaluating and scalingup integrated Striga hermonthica control technologies among farmers in northern Nigeria

This paper assesses the potential economic impacts of balanced nutrient management systemstechnology options: BNMS-manure, which combines inorganic fertilizer and organic manure,and BNMS-rotation, which is maize–soybean rotation, in maize-based systems in the northernGuinea savanna areas of Niger...


Akinola, Adebayo A.Alene, Arega D.Adeyemo, R.Sanogo, D.Olanrewaju, A.S.[Economic impacts of soil fertility management research in West Africa]Economic impacts of soil fertility management research in West Africa

As part of a major effort to address soil fertility decline in West Africa, a project on balanced nutrient management systems (BNMS) has been implemented in the northern Guinea savanna (NGS) of Nigeria. The project tested and promoted two major technology packages: a combinedapplication of inorga...


Akinola, Adebayo A.Alene, Arega D.Adeyemo, R.Sanogo, D.Olanrewaju, A.S.[Impacts of balanced nutrient management systems technologies in the northern Guinea savanna of Nigeria]Impacts of balanced nutrient management systems technologies in the northern Guinea savanna of Nigeria

Participatory research and development approaches involving all stakeholders along the value chain have recently been hypothesized to produce quicker outcomes than the linear technology transfer model. This paper analyzed the crop yield obtained by farmers and their uptake of improved technologie...


Abdoulaye, TahirouAmaza, P.S.Olanrewaju, A.S.Ellis-Jones, J.[Promoting the adoption of innovations through participatory approaches: example from northern Nigeria]Promoting the adoption of innovations through participatory approaches: example from northern Nigeria

This paper examines the impacts of access to extension services and cooperative membership on technology adoption, asset ownership and poverty using household-level data from rural Nigeria. Using different matching techniques and endogenous switching regression approach, we find that both extensi...


Assfaw Wossen, TesfamichealAbdoulaye, TahirouAlene, A.Haile, M.G.Feleke, S.Olanrewaju, A.S.Manyong, Victor M.[Impacts of extension access and cooperative membership on technology adoption and household welfare]Impacts of extension access and cooperative membership on technology adoption and household welfare
Sanogo, D.Olanrewaju, A.S.[Presidential intiatives on cassava in Africa: case studies of Ghana and Nigeria]Presidential intiatives on cassava in Africa: case studies of Ghana and Nigeria

The Bill & Melinda Gates Foundation (BMGF) and the CGIAR Research Program on Roots, Tubers and Bananas (RTB) cofunded the Cassava Monitoring Survey (CMS) project with the objective of documenting the extent of adoption of improved cassava varieties with a rigorous sampling and DNA based identific...


Assfaw Wossen, TesfamichealGirma Tessema, G.Abdoulaye, TahirouRabbi, Ismail Y.Olanrewaju, A.S.Bentley, J.Alene, A.Feleke, S.Kulakow, P.A.Asumugha, G.N.Adebayo, M.A.Tokula, M.Manyong, Victor M.[The cassava monitoring survey in Nigeria: final report]The cassava monitoring survey in Nigeria: final report

Several alternative options have been used for varietal identification. However most of the traditional methods have inherent uncertainty levels and estimates often have wide confidence intervals. In an attempt to circumvent traditional survey-based measurement errors in varietal identification, ...


Girma Tessema, G.Rabbi, Ismail Y.Olanrewaju, A.S.Alaba, O.Kulakow, P.A.Alabi, T.Ayedun, B.Abdoulaye, TahirouAssfaw Wossen, TesfamichealAlene, A.Manyong, Victor M.[A manual for large-scale sample collection, preservation, tracking, DNA extraction, and variety identification analysis]A manual for large-scale sample collection, preservation, tracking, DNA extraction, and variety identification analysis

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