Resultados de búsqueda - "Nigeria"

Survey on incidence and severity of Stenocarpella macrospora (Earle) leaf blight of maize in the midaltitude zone of Nigeria por Olatinwo, R.O., Deadman, M.L., Cardwell, K.F., Julian, A.M.

“…Surveys were conducted on the incidence and severity of Stenocarpella macrospora (Earle) Sutton (= Diplodia macrospora Earle) on maize in the mid-altitude zone of Nigeria in 1995 and 1996. The results indicated a possible link between disease severity and plant density. …”
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Soil macroaggregate stability under different fallow management systems and cropping intensities in southwestern Nigeria por Salako, F.K., Babalola, O., Hauser, S., Kang, B.T.

“…This study was carried out in southwestern Nigeria to quantify the effects of various fallow management systems on the macroaggregate stability of surface soil (0–15-cm depth) using a long-term fallow management trial established in 1989 on an Alfisol toposequence. …”
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Alley cropping sequentially cropped maize and cowpea with Leucaena on a sandy soil in southern Nigeria por Kang, B.T., Grimme, H., Lawson, T.L.

“…The potential of alley cropping maize and cowpea with the giant Leucaena (Leucaena leucocephala (Lam) de Wit) cultivar K-28 was studied on an Entisol (Psammentic Ustorthent) in Southern Nigeria. In this trial the crops were grown in 4 m wide alleys formed by periodically pruned leucaena hedgerows. …”
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Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria por Kamara, A., Menkir, A., Ajala, S.O., Kureh, I.

“…The Guinea savannas of Nigeria have a high potential for the production of maize because of favourable environmental conditions. …”
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Multiple purpose tree use by farmers using indigenous knowledge in subhumid and semiarid northern Nigeria por Oyewole, B., Carsky, R.J.

“…A survey was undertaken in Bauchi and Kaduna States of northern Nigeria to determine the extent of farmer knowledge in identifying niches for agroforestry trees. …”
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Litter and biomass production from planted and natural fallows on a degraded soil in southwestern Nigeria por Salako, F.K., Tian, G.

“…To rehabilitate a degraded Alfisol at Ibadan, southwestern Nigeria, Senna siamea (non-N-fixing legume tree), Leucaena leucocephala, and Acacia leptocarpa (N-fixing legume trees) were planted in 1989, and Acacia auriculiformis (N-fixing legume tree) in 1990. …”
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Adoption of soybeans in subSaharan Africa: a comparative analysis of production and utilization in Zaire and Nigeria por Shannon, D., Kalala, M.

“…Most farmers considered marketing the principal constraint to increased production. Survey results from Nigeria revealed similar adoption trends. Common elements were locally adapted foods in which soybean did not displace traditional legumes, promotion of soybean, diffusion, technological breakthroughs and response to local markets. …”
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Profitability of cassava production: comparing the actual and potential returns on investment among smallholders in southern Nigeria por Ojiako, I.A., Tarawali, G., Okechukwu, R.U., Chianu, J., Ezedinma, C.I., Edet, M.

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Mapping the risk of highly pathogenic avian influenza occurrence in Nigeria: A data-driven approach por Métras, Raphaëlle, Stevens, Kim B., Abdu, P., Costard, Solenne, Okike, Iheanacho, Grace, Delia, Randolph, Thomas F., Pfeiffer, Dirk U.

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

“…An economic evaluation of the cut-and-carry method of providing nutrients for maize production was carried out based on investigations in south-western Nigeria. The results showed that the use of mulch from multipurpose trees (MPTs) through the cut-and-carry method contributed to higher maize grain yields than those obtained with fertilizer or in the untreated controls. …”
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Isolation, characterisation and identification of a potyvirus from Dioscorea alata L. (water yam) in Nigeria por Odu, B.O., Hughes, J.D., Shoyinka, S.A., Dongo, L.N.

“…A yam potyvirus was isolated from Dioscorea alata samples collected in Nigeria. The virus was not transmissible mechanically but was transmitted by Aphis craccivora to four cowpea cultivars (Ife Brown, IT84S‐2114, IT82E‐10 and TVu2657), and from which it could be mechanically transmitted between the cowpea cultivars. …”
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Root crop/oil palm farming systems: a case study from Eastern Nigeria por Lagemann, Johannes, Flinn, J.C., Okigbo, B., Moorman, F.R.

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Genetic conservation through effective utilization of the improved indigenous chicken breeds by rural households in Nigeria por Adebambo, Ayotunde Olufunmilayo, Adeleke, M., Adeleye, A., Adeyinka, Isaac A., Ajayi, F., Akinola, W., Alabi, O., Bamidele, O., Dessie, Tadelle, Ikeobi, C., Ogundu, U., Ojoawo, H., Osinbowale, D., Ozoje, M., Peters, S., Sonaiya, B., Wheto, M., Yakubu, A.

“…Our collection and genetic characterization of various indigenous chicken genotypes in Nigeria started in 1984 at the National Animal Production Research Institute, Shika, Zaria, (Shika Brown) in 1994 at the Federal University of Agriculture, Abeokuta, Nigeria (FUNAAB) and in 2014 in Obafemi Awolowo University, Ile-Ife (FULANI). …”
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Productivity and limitations of plantain (Musa spp. cv AAB) production in compound gardens in southeastern Nigeria por Nweke, F., Njoku, J., Wilson, G.

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Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria por Hahn, S., Isoba, J., Ikotun, T.

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Natural biological control of African rice gall midge in Nigeria: IITA research guide, No. 37 por Umeh, E.D.N., Joshi, R., Ukwungwu, M.N.

“…Natural enemies of ARGM in Nigeria so far discovered are parasitoids.…”
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Needs assessment study for marketdriven agricultural technology transfer and commercialization in Abia State, Nigeria: RUSEP por Kormawa, P.M., Kolawole, K.B, Azuogu, I., Okorji, E.C., Ezedinma, C.I.

“…RUSEP is the latest attempt by the federal government of Nigeria to alleviate poverty through the transfer of market-driven agricultural technology to farmers and the commercialization of agriculture in selected states in Nigeria. …”
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Selective control of weeds in an arable crop by mulches from some multipurpose trees in southwestern Nigeria por Kamara, A.Y., Akobundu, I.O., Jutzi, S.C.

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Economic evaluation of systems intercropping food crops with leguminous cover crops in the derived savanna of Nigeria por Manyong, Victor M., Tian, G., Makinde, K., Kolawole, G.O.

“…This paper report economic results from a 2year on-station evaluation of four systems (sole maize, maize + Mucuna, maize + Pueraria, and maize + Pueraria + Mucuna in the first year, each rotated with maize + cassava in the second year) in which food crops were simultaneously planted with leguminous cover crops with and without fertilizer at Ibadan, Nigeria. Systems with Pueraria and those with Pueraria/Mucuna were more profitable than the others and seemed to be promising technologies for simultaneous intercropping of food crops and cover crops for the derived savanna of West Africa. …”
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A participatory appraisal of Imperata management strategies for sustainable land use in the subhumid savanna of Nigeria por Kormawa, P.M., Ellis-Jones, J., Ibana, S., Chikoye, David, Schulz, S., Nielsen, O.K., Douthwaite, Boru, Udensi, U.E.

“…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. …”
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