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The dry savannas of West Africa are undergoing rapid transformation of agricultural practices owing to the rapid human and livestock population growth, increase in agricultural intensification and accelerated climate change which has increased the incidence and severity of diseases, pests and ...


Kamara, A.Y.Ajeigbe, Hakeem A.Omoigui, L.O.Chikoye, D.[Intensive cereal-legume–livestock systems in West African dry Savannas.]Intensive cereal-legume–livestock systems in West African dry Savannas.

Groundnut production in northeast Nigeria is constrained by low level of soil phosphorus. This study evaluated four groundnut varieties for their response to P fertilization in two Nigerian agro-ecological zones (Sudan and Northern Guinea savanna) during 2005 and 2006. The experimental design was...


Kamara, A.Y.Ekeleme, F.Kwari, J.D.Omoigui, L.O.Chikoye, D.[Phosphorus effects on growth and yield of groundnut varieties in the tropical savannas of northeast Nigeria]Phosphorus effects on growth and yield of groundnut varieties in the tropical savannas of northeast Nigeria

The study examined the socio-economic characteristics of participating seed farmers in a community-based seed production scheme organized by the project, Promoting Sustainable Agriculture in Borno State (PROSAB). In addition, it determined the technical efficiency of resource use in PROSAB seed f...


Amaza, P.S.Udoh, E.J.Abdoulaye, TahirouKamara, A.Y.[Analysis of technical efficiency among community-based seed producers in the savannas of Borno State, Nigeria]Analysis of technical efficiency among community-based seed producers in the savannas of Borno State, Nigeria

This paper evaluates the impact of the intervention of Promoting Sustainable Agriculture in Borno (PROSAB) project on the livelihoods of farminghouseholds in Borno State, Nigeria. Specifically, the paper identifies and provides information on farmers’ adoption of improved crop varietiesintroduced...


Bamire, S.A.Abdoulaye, TahirouAmaza, P.Tegbaru, A.Alene, Arega D.Kamara, A.Y.[Impact of promoting sustainable agriculture in Borno (PROSAB) program on adoption of improved crop varieties in Borno State of Nigeria]Impact of promoting sustainable agriculture in Borno (PROSAB) program on adoption of improved crop varieties in Borno State of Nigeria

Striga hermonthica is a parasitic weed that attacks maize, sorghum and other staple cereal crops and has long been considered one of the greatest biotic constraints to cereal production in Africa. Use of resistant or tolerant maize varieties, a maize–legume rotation using trap crops that stimulat...


Kamara, A.Y.Ellis-Jones, J.Amaza, P.Omoigui, L.O.Helsen, J.Dugje, I.Y.Kamai, N.Menkir, A.White, R.W.[A participatory approach to increasing productivity of maize through Striga hermonthica control in Northeast Nigeria]A participatory approach to increasing productivity of maize through Striga hermonthica control in Northeast Nigeria

The performances of plants and seedlings of 14 tropical-adapted, registered maize hybrids were evaluated under drought stress to assess genotype suitability for off-season planting and to identify parental materials for developing drought tolerant hybrids from locally adapted germplasm. Field eva...


Oyekale, K.O.Daniel, I.O.Kamara, A.Y.Adegbite, A.E.Ajala, M.O.[Evaluation of tropical maize hybrids under drought stress]Evaluation of tropical maize hybrids under drought stress

Cowpea is an important food legume and versatile crop in the savannas of northeast Nigeria. Despite the high potential for production in this region, insect pests are a major constraint. A study was conducted to evaluate the response of diverse cowpea genotypes to different schedules of spraying ...


Kamara, A.Y.Chikoye, D.Omoigui, L.O.Dugje, I.Y.[Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria]Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria

Field studies were conducted in northeast Nigeria to evaluate the response ofearly and late-maturing maize varieties infested with natural populations ofStrigato different rates of nitrogen (N) fertilizer. There were significant reductions in thenumber of emergedStrigaat 120 kg N ha71for the earl...


Kamara, A.Y.Ekeleme, F.Omoigui, L.O.Menkir, A.Chikoye, D.Dugje, I.Y.Abdoulaye, TahirouAmaza, P.[Influence of nitrogen fertilization on the performance of early and late maturing maize varieties under natural infestation with Striga hermonthica (Del.) Benth]Influence of nitrogen fertilization on the performance of early and late maturing maize varieties under natural infestation with Striga hermonthica (Del.) Benth

A Participatory Impact assessment (PASS) was undertaken to evaluate the adoption of improved crop technologies by farmers in the savannas of Borno State, Nigeria. A total of 476 people including 288 men and 188 women participated in PASS. These included representatives of 97 farmer groups/CBOs, o...


Amaza, P.S.Ellis-Jones, J.Kamara, A.Y.Helsen, J.Gaya, H.I.[A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria]A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria

The aim of this study was to assess the influence of farmers` crop management practices on Striga infestation and maize grain yield. Sixty farmers` fields were randomly selected in nine communities across three savanna zones. About 35% of the farmers had cultivated their fields for over 10 years,...


Dugje, I.Y.Kamara, A.Y.Omoigui, L.O.[Influence of farmers crop managemnt practices on Striga hermonthica infestation and grain yield of maize (Zea mays L.) in the savanna zones of northeast Nigeria]Influence of farmers crop managemnt practices on Striga hermonthica infestation and grain yield of maize (Zea mays L.) in the savanna zones of northeast Nigeria

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