Resultados de búsqueda - "Nigeria"

Prospects and determinants of adoption of IITA plantain and banana based technologies in three Niger Delta States of Nigeria por Faturoti, B.O., Emah, G.N., Isife, B.I., Tenkouano, A., Lemchi, J.

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Effect of planting pattern, crop variety and insecticide on the productivity of cowpeacereal systems in Northern Guinea Savanna of Nigeria por Ajeigbe, Hakeem A., Oseni, T., Singh, B.

“…A cropping system trial involving two spray regimes, two cowpea varieties and ten cowpea-cereals ptanting pattems involving two cereals was conducted in the wet season in the nohhem Guinea Savanna of Nigeria in 1999 and 2000 to identi$ suitable row to row planting arrangement for cowpea-cereal systems. …”
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Fast track participatory approach to release of elite cassava genotypes for various uses in Nigerias cassava economy por Dixon, A., Akoroda, M.O., Okechukwu, R.U., Ogbe, F., Ilona, Paul, Sanni, Lateef O., Ezedinma, C.I., Lemchi, J., Ssemakula, G.N., Yomeni, M., Okoro, E., Tarawali, G.

“…A fast track participatory selection approach was used in 2 years to release nine new lines in Nigeria. It was intensive and several lessons were learnt. …”
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Farmer-to-farmer technology diffusion and yield variation among adopters: the case of improved cowpea in northern Nigeria por Alene, A., Manyong, Victor M.

“…This article examines the magnitude and sources of yield variation among adopters of improved cowpea varieties in northern Nigeria promoted through farmer-to-farmer diffusion. …”
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Soil nutrient and cassava yield variations under continuous cultivation of three crop mixtures in southeastern Nigeria por Asadu, C., Dixon, A.

“…A research farm at University of Nigeria, Nsukka, Nigeria, which was under cultivation for >25years before it was fallowed for 8 years, was cleared in 1998 and grown to three common crop mixtures for 4 years. …”
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The influence of host genotype X environment interactions on the response of cassava anthracnose disease in diverse agroecologies in Nigeria por Ngeve, J., Dixon, A., Nukenine, E.

“…Nine cassava (Manihot esculenta) genotypes were grown for three years (1992-1993, 1993-1994 and 1994-1995) in three agro-ecological zones in Nigeria to study their reaction to cassava anthracnose disease (CAD), caused by Colletotrichum gloeosporioides, investigate genotype x environment (G x E) interaction patterns for their reaction to anthracnose, and to identify genotypes with stability of resistance to the disease. …”
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Influence of insecticide spraying regimes and cultivar on insect pests and yield of cowpea in the dry savannas of northeastern Nigeria por Kamara, Y., Chikoye, David, Omoigui, L.O., Dugje, I.Y.

“…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. …”
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Promoting integrated management practices for speargrass (Imperata cylindrica (L) Raeusch.) in soybean, cassava and yam in Nigeria por Chikoye, David, Ellis-Jones, J., Avav, T., Kormawa, P.M., Udensi, U.E., Tarawali, G., Nielsen, O.K.

“…Participatory research and extension approaches were used to promote farmer testing of alternative speargrass management options in yam, cassava and soybean in Nigeria. Treatments were paired plots with a farmers' control and at least one improved control option. …”
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Ploidy and genomic group effects on yield components interaction in bananas and plantains across four environments in Nigeria por Baiyeri, K., Tenkouano, A., Mbah, B., Mbagwu, J.

“…Thirty-six Musa genotypes, comprising the three major genomic groups (AAA, AAB, ABB) and their hybrids, were evaluated in four environments in Nigeria. Multiple correlation and path coefficient analysis was performed on phenological and yield traits. …”
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First report of Nattrassia mangiferae as a postharvest fungal pathogen of white yam (Dioscorea rotundata) in Nigeria por Sangoyomi, T., Ekpo, E., Asiedu, Robert

“…A survey of the yam growing areas of Nigeria was conducted in January 1999 to identify the major fungal pathogens responsible for considerable tuber rot losses in storage. …”
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Adoption pattern of fertiliser technology among farmers in the ecological zones of southwestern Nigeria: a Tobit analysis por Bamire, A., Fabiyi, Y., Manyong, Victor M.

“…Using data from a survey of farm operators in two major ecological zones of Osun State in south-western Nigeria, this paper empirically evaluates the determinants of farmers' fertiliser adoption decisions and the intensity of use of the technology using a Tobit regression model. …”
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The politics of the forest frontier: negotiating between conservation, development, and indigenous rights in Cross River State, Nigeria por Schoneveld, George C.

“…Nigeria's once thriving plantation economy has suffered under decades of state neglect and political and civil turmoil. …”
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Genotypic variability in adaptation responses of selected clones of cassava to drought stress in the Sudan savanna zone of Nigeria por Okogbenin, Emmanuel, Ekanayake, I.J., Porto, M.C.M.

“…Nine improved cassava varieties developed in humid and subhumid agro-ecologies were evaluated for their growth responses and adaptability in the dry savannas of Nigeria. Field trials were set up in two cropping seasons at three different locations. …”
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Distribution and current status of bacterial blight and fungal diseases of cassava in Nigeria: ICP technical report 01 por Onyeka, T., Dixon, A., Bandyopadhyay, Ranajit, Okechukwu, R., Bamkefa, B.

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AATF/BCP maize vitamin a workshop held at IITA, Ibadan, Nigeria 46 August 2003 por International Institute of Tropical Agriculture

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Pioneer woody species in Leucaena leucocephala and senna siamea hedgerows in a forest ecoysystem in southern Nigeria por Akinnifesi, F.K., Mutsaers, H.J.W., Tijani-Eniola, H.

“…(Lam.) de Wit and Senna siamea (Irwin & Barnedy) from 16 dispersed farmer-managed alley cropped fields in southwestern Nigeria. The 31 different woody species encountered in the survey had 72.6% similarity coefficient between hedgerows of Leucaena and Senna. …”
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Phosphorus requirement and nodulation of herbaceous and shrub legumes in low P soils of a Guinean Savanna in Nigeria por Sanginga, N., Okogun, J.A., Akobundu, I.O., Kang, B.T.

“…These legumes were grown at two P levels (0 and 7 kg P ha−1) in soils collected from two fields with different cropping histories (compound and degraded fields) at Yamrat in the northern Guinea savanna of Nigeria. In the compound field, animal manure and household residues are applied annually whereas in the degraded field, cereals are grown continuously with minimal organic inputs. …”
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Residual effects of natural bush, Cajanus cajan, and Tephrosia candida on the productivity of an acid soil in southeastern Nigeria por Gichuru, M.P.

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First report and pathogenicity of Myrothecium roridum, Curvularia eragrostidis and C.lunata on seeds of Striga hermonthica in Nigeria por Czerwenka-Wenkstetten, I.M., Berner, D.K., Schilder, A., Gretzmacher, R.

“…In September 1994, a seed lot of Striga hermonthica (harvested in 1993 in sorghum fields in Abuja, Nigeria) was observed to have a very low germination rate (20 to 40%). …”
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Maize (Zea mays) genotypes for intercroping with cassava (Manihot esculenta) in southern Nigeria; 1: yield responses por Ezumah, H.C.

“…Five maize genotypes differing in plant habit and growth period were evaluated at 5 population densities (10, 20, 40, 80 and 160 × 103 plants/ha) under an intercropping system with cassava at 1 × 1 or 1 × 0.67 m spacings in a tropical Alfisol in southern Nigeria. The 2-year study revealed significant cassava spacing (CS) × maize spacing (MS) and CS × MS × maize genotype interactions for cassava root yield. …”
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