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Cutting and carrying of mulch from established tree plots is an alternative to in situ mulch in agroforestry systems. Through the cut-and-carry method, the undesirable e ects of tree-crop competition characterized by in situ mulching can be avoided. An economic evaluation of the cut-and-carry met...


Kormawa, P.M.Kamara, A.Y.Jutzi, S.C.Sanginga, N.[Economic evaluation of using mulch from multipurpose trees in maizebased production systems in southwestern Nigeria]Economic evaluation of using mulch from multipurpose trees in maizebased production systems in southwestern Nigeria
Autor: Menkir, A.

Maize (Zea mays L) is cultivated under a broad range of climatic conditions in West and Central Africa (WCA). For the purpose of germplasm evaluation, maize researchers in the subregion loosely stratified the diverse environments into four agroecological zones based on their knowledge and experie...


Menkir, A.[The role of GIS in the development and targeting of maize germplasm to farmers in West and Central Africa]The role of GIS in the development and targeting of maize germplasm to farmers in West and Central Africa

Agricultural research by national systems and international institutes has contributed to the increase in maize production and productivity in West and Central Africa (WCA) over the last three decades. This subregion accounted for about 43% of maize production in sub-Saharan Africa (SSA) from 199...


Manyong, Victor M.Makinde, K.O.Coulibaly, O.[Economic gains from maize research in West and Central Africa: an overview]Economic gains from maize research in West and Central Africa: an overview

It has been difficult to explain the rotation effect based solely on N availability in maize-soybean cropping systems in the moist savanna zone of sub-Saharan Africa. Although arbuscular mycorrhizal fungi (AMF) can contribute to plant growth by reducing stresses resulting from other nutrient defi...


Sanginga, N.Carsky, R.J.Dashiell, Kenton E.[Arbuscular mycorrhizal fungi (AMF) respond to rhizobial inoculation and cropping systems in farmers fields in the Guinea savanna]Arbuscular mycorrhizal fungi (AMF) respond to rhizobial inoculation and cropping systems in farmers fields in the Guinea savanna

Inheritance of resistance to Stenocarpella macrospora (Earle) Sutton (syn. Diplodia macrospora Earle) ear rot of maize was studied among selected maize populations in the mid-altitude (1280 m) agro-ecological zone of Nigeria. Diallel analysis among the populations showed significant values for ge...


Olatinwo, R.Cardwell, K.Menkir, A.Deadman, M.L.Julian, A.[Inheritance of resistance to Stenocarpella macrospora (Earle) ear rot of maize in the midaltitude zone of Nigeria]Inheritance of resistance to Stenocarpella macrospora (Earle) ear rot of maize in the midaltitude zone of Nigeria

The biology of Sitophilus zeamais Motschulsky, an important pest of stored commodities, is well described in the literature. To integrate current knowledge and to understand better the population dynamics of this species in rural maize, Zea mays L., stores, we developed a distributed-delay, demog...


Meikle, W.G.Holst, N.Markham, R.H.[Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa]Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa

Laboratory experiments using whole cobs were conducted to examine the effect of varying densities of the larger grain borer, Prostephanus truncatus and the maize weevil, Sitophilus zeamais on rate of population increase by the histerid beetle, Teretriosoma nigrescens, a predator primarily of P. t...


Ayertey, J.N.Meikle, W.G.Borgemeister, C.Camara, M.Markham, R.H.[Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)]Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)

The influence of weeds on maize intercropped with cassava was evaluated in three fallow management systems and four cropping frequencies from 1989 to 1996 in lbadan, Nigeria, West Africa. Fallow management systems consisted of natural bush, Leucaena leucocephala hedgerows and Puerctria phaseoloid...


Akobundu, I.O.Ekeleme, F.Chikoye, D.[Influence of fallow management systems and frequency of cropping on weed growth and crop yield]Influence of fallow management systems and frequency of cropping on weed growth and crop yield

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