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Mignouna, Djana B.Abdoulaye, TahirouAlene, A.Akinola, Adebayo A.Maroya, N.[Baseline protocols: the case of Yam Improvement for Income and Food Security in West Africa (YIIFSWA) project; YIIFSWA working paper series, No. 4]Baseline protocols: the case of Yam Improvement for Income and Food Security in West Africa (YIIFSWA) project; YIIFSWA working paper series, No. 4

Assfaw Wossen, TesfamichealAbdoulaye, TahirouAlene, A.Nguimkeu, P.Feleke, S.Rabbi, Ismail Y.Haile, M.G.Manyong, Victor M.["Estimating the productivity impacts of technology adoption in the presence of misclassification" - author response to comment]"Estimating the productivity impacts of technology adoption in the presence of misclassification" - author response to comment

Mignouna, Djana B.Akinola, Adebayo A.Abdoulaye, TahirouAlene, A.Maroya, N.Aighewi, B.A.Wobill, T.Asiedu, Robert[Impact evaluation protocols for agricultural projects: the case of yam improvement for income and food security in West Africa]Impact evaluation protocols for agricultural projects: the case of yam improvement for income and food security in West Africa

To determine the efficiency of utilization of organic matter in agricultural production, nitrogen flow was estimated within a village-farm model in the west of Niger, West Africa. Nitrogen was focused on in this study as it is known to be a major nutrient component of organic matter and one of th...


Hayashi, K.Matsumoto, N.Hayashi, E.Abdoulaye, TahirouShinjo, H.Tabo, RamadjitaMatsunaga, R.Tobita, S.[Estimation of nitrogen flow within a villagefarm model in Fakara region in Niger, Sahelian zone of West Africa]Estimation of nitrogen flow within a villagefarm model in Fakara region in Niger, Sahelian zone of West Africa

The study examined 'Socioeconomic assessment of adoption of production and processing technologies on farming households'. Using multistage sampling techniques, 480 farming households from Intervention villages - IVs and the Non-Intervention villages - NIVs were sampled from South Zones of Nigeri...


Ayedun, B.Okuneye, P.A.Dipeolu, A.Abdoulaye, Tahirou[Socioeconomic assessment of adoption of production and processing technologies on farming households in Nigeria]Socioeconomic assessment of adoption of production and processing technologies on farming households in Nigeria

This paper evaluates the costs and returns incurred by the use of chemical and biological crop products among households in five selected Compro communities in the derived, Southern Guinea, Northern Guinea, Sudan and Sahel Savanna agro-ecological zones (AEZs) in West Africa. Sixty households were...


Bamire, A.Abaidoo, R.C.Jemo, M.Abdoulaye, TahirouYusuf, A.A.Nwoke, C.[Profitability analysis of commercial chemical and biological crop products among farm households in agroecological zones of West Africa]Profitability analysis of commercial chemical and biological crop products among farm households in agroecological zones of West Africa

High seed quality is a critical component for realising yield potential. For smallholder cowpea farmers in northern Nigeria the informal seed system is a major supplier of genetically high-quality seed, but the physiological quality of farmers’ produced seed remains unknown. The project “Promotin...


Biemond, P.C.Stomph, T.Kamara, A.Abdoulaye, TahirouHearne, S.Struik, Paul C.[Are investments in an informal seed system for cowpea a worthwhile endeavour?]Are investments in an informal seed system for cowpea a worthwhile endeavour?

New seed yam systems from minisetts, minitubers and vine cuttings have been developed for yam production to supplant the traditional systems, which have proven inefficient and costly. The new techniques provide producers in tropical countries with the opportunity to minimize production costs, red...


Mignouna, Djana B.Abdoulaye, TahirouAlene, A.Aighewi, B.A.Pelemo, O.Manyong, Victor M.Asiedu, RobertAkoroda, M.O.[Economic analysis of seed yam production systems in Nigeria]Economic analysis of seed yam production systems in Nigeria

This study measured the impacts of drought tolerant maize varieties (DTMVs) on productivity, welfare, and risk exposure using household and plot-level data from rural Nigeria. The study employed an endogenous switching regression approach to control for both observed and unobserved sources of het...


Assfaw Wossen, TesfamichealAbdoulaye, TahirouAlene, A.Feleke, S.Menkir, A.Manyong, Victor M.[Measuring the impacts of adaptation strategies to drought stress: the case of drought tolerant maize varieties]Measuring the impacts of adaptation strategies to drought stress: the case of drought tolerant maize varieties

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