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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
Carsky, R.Tarawali, G.Becker, M.Chikoye, D.Tian, G.Sanginga, N.[Mucuna-herbaceous cover legume with potential for multiple uses]Mucuna-herbaceous cover legume with potential for multiple uses
Chikoye, D.Ekeleme, F.Akobundu, I.[Weed composition and population dynamics in intensified smallholder farms in West Africa]Weed composition and population dynamics in intensified smallholder farms in West Africa

Sustainable resource management is the critical agricultural research and development challenge in sub-Saharan Africa. The accumulated knowledge on soil management gathered over the last 10 years, combined with solid crop improvement and plant health research at farmers’ level, has brought us to ...


Sanginga, N.Dashiell, Kenton E.Diels, J.Vanlauwe, BernardLyasse, O.Carsky, R.J.Tarawali, S.Asafo-Adjei, B.Menkir, A.Schulz, S.Singh, B.B.Chikoye, D.Keatinge, D.Ortiz, R.[Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna]Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna

Inoculation of soybean with Bradyrhizobium spp. can increase soybean yield especially on fields with no recent history of soybean production. However, yields of inoculated soybean may be constrained in P deficient soils. The objective of this study was to evaluate the responses of two soybean cul...


Boahen, S.Chikoye, D.Abaidoo, R.C.Muananamuale, C.Engoke, C.S.[Growth and yield responses of two soybean cultivars to Inoculation, P and N fertilization in Northern Mozambique]Growth and yield responses of two soybean cultivars to Inoculation, P and N fertilization in Northern Mozambique

Increasing spread of Imperata in the sub-humid Savannah of Nigeria has had many neg- ative results threatening the sustainability of the natural resource base and livelihood of farmers. A community-based participatory approach (PA) was conducted to identify cur- rent and alternative technologies ...


Kormawa, P.M.Ellis-Jones, J.Ibana, S.Chikoye, D.Schultz, S.Nielsen, O.K.Douthwaite, BoruUdensi, U.[A participatory appraisal of Imperata management strategies for sustainable land use in the subhumid savanna of Nigeria]A participatory appraisal of Imperata management strategies for sustainable land use in the subhumid savanna of Nigeria

Soil conservation has a long tradition in West Africa and various on-farm and off-farm soil conservation technologies already exist. An extensive literature review has shown that mulching, crop management and conservation tillage are adequate measures for combating soil degradative processes such...


Junge, B.Deji, O.F.Abaidoo, R.C.Chikoye, D.Stahr, Karl[Assessment of past and present soil conservation initiatives in Nigeria, West Africa]Assessment of past and present soil conservation initiatives in Nigeria, West Africa

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 long-term trial was established in 1998. The objectives among others were to assess the impact of nitrogen, natural bush fallow, and legume−maize rotations on weed growth and species composition in the forest/savanna transition zone (Ibadan) and northern Guinea savanna (Zaria) in Nigeria. At bo...


Ekeleme, F.Fontem Lum, A.Schulz, S.Chikoye, D.[Legumemaize rotation and nitrogen effects on weed performance in the humid and subhumid tropics of West Africa]Legumemaize rotation and nitrogen effects on weed performance in the humid and subhumid tropics of West Africa

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