Maize (Zea mays L.) is cultivated under a broad range of climatic conditions in West and Central Africa (WCA). Unfortunately, maize production is constrained by a host of abiotic and biotic stresses, including drought, low soil fertility, diseases, insect pests, and the parasitic weed Striga herm...
Fakorede, M.A.B.
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Badu-Apraku, B.
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Kamara, A.Y.
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Menkir, A.
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Ajala, S.O.
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[Maize revolution in West and Central Africa: an overview]
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Maize revolution in West and Central Africa: an overview
Field trials were conducted in 2005 and 2006 in Tilla (northern Guinea savanna) and Sabon-Gari (Sudan savanna) in northeast Nigeria to determine the performance of two improved cowpea varieties when relay-intercropped with early and late maize, 6 and 8 weeks after planting the maize. Grain yield,...
Kamara, A.Y.
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Omoigui, L.O.
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Ewansiha, S.U.
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Ekeleme, F.
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Chikoye, D.
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Ajeigbe, Hakeem A.
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[Performance of semideterminate and indeterminate cowpeas relaycropped into maize in Northeast Nigeria]
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Performance of semideterminate and indeterminate cowpeas relaycropped into maize in Northeast Nigeria
In the dry savanna of West and Central Africa, where unpredictable rainfall and recurrent drought are major constraints to maize production, the development of tropical maize genotypes with high and sable yields under drought is very important since access to drought-tolerant genotypes may be the...
Kamara, A.Y.
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Menkir, A.
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Badu-Apraku, B.
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Ibikunle, O.
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[Reproductive and staygreen trait response of maize hybrids, improved openpollinated varieties, and farmers local varieties to terminal drought stress]
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Reproductive and staygreen trait response of maize hybrids, improved openpollinated varieties, and farmers local varieties to terminal drought stress
Establishing balanced nutrient requirements for maize (Zea mays L.) in the Northern Nigerian Savanna is paramount to develop site-specific fertilizer recommendations to increase maize yield, profits of farmers and avoid negative environmental impacts of fertilizer use. The model QUEFTS (QUantitat...
Shehu, B.M.
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Lawan, B.A.
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Jibrin, J.M.
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Kamara, A.Y.
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Mohammed, I.B.
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Rurinda, J.
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Zingore, S.
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Craufurd, P.
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Vanlauwe, Bernard
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Adam, A.M.
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Merckx, R.
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[Balanced nutrient requirements for maize in the northern Nigerian savanna: parameterization and validation of QUEFTS model]
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Balanced nutrient requirements for maize in the northern Nigerian savanna: parameterization and validation of QUEFTS model
The use of agroforestry systems in which pruning from trees is used to mulch the companion crops is an important area of research in the tropics. However, previous studies mostly evaluated the contribution of mulch to soil improvement and rarely examined the effect of mulch on weeds. Field experi...
Kamara, A.Y.
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Akobundu, I.O.
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Jutzi, S.C.
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[Selective control of weeds in an arable crop by mulches from some multipurpose trees in southwestern Nigeria]
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Selective control of weeds in an arable crop by mulches from some multipurpose trees in southwestern Nigeria
Leaf extracts and mulch from 14 multipurpose trees were used to test their effects on maize germination, growth and yield. Maize germination was significantly reduced by leaf extracts of all species with increasing extract concentration. The most drastic reductions were caused by Gliricidia sepiu...
Kamara, A.Y.
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Akobundu, I.O.
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Sanginga, N.
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Jutzi, S.C.
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[The effects of mulch from selected multipurpose trees on nitrogen nutrition, growth and yield of maize (Zea mays)]
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The effects of mulch from selected multipurpose trees on nitrogen nutrition, growth and yield of maize (Zea mays)
The Guinea savannas of Nigeria have a high potential for the production of maize because of favorable environmental conditions. Despite this high potential, the yields obtained under farmers' conditions are still very low. Low soil fertility and intermittent drought are among major constraints li...
Kamara, A.Y.
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Menkir, A.
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Omoigui, L.O.
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Kureh, I.
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[Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas]
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Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas
On-farm trials were conducted in 2001 to 2003 in the northern Guinea savanna of Nigeria to evaluate integrated Striga hermonthica control methods under farmer-managed conditions. These included intercropping a Striga-resistant maize variety with cowpea (Vigna unguiculata L.) and also cropping thi...
Kureh, I
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Kamara, A.Y.
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[Effects of sole cropping, intercropping and rotation with legume trap-crops on striga control and maize grain yield in farmers' fields in the Guinea savannas]
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Effects of sole cropping, intercropping and rotation with legume trap-crops on striga control and maize grain yield in farmers' fields in the Guinea savannas
A study was conducted in Kano and Bauchi States in the dry Savanna of northern Nigeria to determine Striga incidence and infestation and relate these to soil fertility status and yield of maize. A three-stage sampling technique was used to select communities and fields in targeted Local Governmen...
Ekeleme, F.
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Jibrin, J. M.
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Kamara, A.Y.
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Oluoch, M.
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Samndi, A.M.
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Fagge, A. A.
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[Assessment of the relationship between soil properties, Striga hermonthica infestation and the on-farm yields of maize in the dry Savannas of Nigeria]
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Assessment of the relationship between soil properties, Striga hermonthica infestation and the on-farm yields of maize in the dry Savannas of Nigeria
On-farm trials were conducted in 2001, 2002, and 2003 in the northern Guinea savanna of Nigeria to evaluate integrated Striga hermonthica control measures under farmermanaged conditions. These included intercropping a Striga-resistant maize variety with cowpea for 3 years and also cropping this m...
Kureh, I.
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Kamara, A.Y.
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Tarfa, B.D.
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[Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria]
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Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria