Resultados de búsqueda - "Nigeria"

Mapping research on bambara groundnut (Vigna subterranea (L.) Verdc.) in Africa: Bibliometric, geographical, and topical perspectives por El Bilali, Hamid, Kiebre, Zakaria, Nanema, Romaric Kiswendsida, Dan Guimbo, Iro, Rokka, Veli-Matti, Gonnella, Maria, Tietiambou, Sheirita Reine Fanta, Dambo, Lawali, Nanema, Jacques, Grazioli, Francesca, Acasto, Filippo

“…Geographically speaking, the most important producers of BGN in Africa are not sufficiently covered in the research; instead, it is mainly carried out in Nigeria and South Africa. Thematically speaking, the gaps are related to economics and social sciences, t…”
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bEcon Archival Collection por Paul, Namita, Yerramareddy, Indira, Zambrano, Patricia

“…This effort is part of the Bill and Melinda Gates funded project “Biotechnology and Biosafety Rapid Assessment Platform – BioRAPP”, a project that, among other policy related objectives, will develop and implement ex ante assessments in 5 African countries (Ethiopia, Ghana, Nigeria, Tanzania, and Uganda) using secondary data. …”
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Assessing the potential impact of avian influenza on poultry in West Africa: A spatial equilibrium model analysis por You, Liangzhi, Diao, Xinshen

“…We analyse the potential economic impacts of avian influenza (AI) in Nigeria, using a spatial equilibrium simulation model. …”
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Eco-friendly and climate smart biopesticides developed and evaluated for their efficacy on target pests por Nwilene, F., Adeoti, A., Nacro, S., Ouattara, D., Umaru, A., Oladigbolu, A.

“…Dipterous stem borers (the stalk-eyed flies – Diopsis spp.) are the most economically important stem borer species of rainfed upland/lowland and irrigated rice in Nigeria. The larvae of stem borers cause significantly yield loss during the vegetative (seedlings to panicle initiation) and reproductive stages by producing deadhearts and whiteheads, respectively, which prevent panicle development. …”
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Influence of phosphorus fertilizer placement and fertilization rate on maize nutrition por Fox, R.L., Kang, B.T.

“…An experiment was conducted on a sandy loam Alagba soil in southern Nigeria to obtain information on the effectiveness of methods of applying P fertilizers on soils of the humid tropics. …”
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Persistence and downward movement of some selected herbicides in the humid and subhumid tropics por Utulu, S.N., Akobundu, I.O., Fayemi, A.A.A.

“…The persistence and downward movement of atrazine, metolachlor, fluometuron and pendimethalin under field conditions were studied at Onne in southern Nigeria, representing a humid tropical climate and at Ibadan, representing a humid-subhumid transition zone. …”
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Effects of fertilizer and weeding in no-tillage and tilled maize por Kang, B.T., Moody, K., Adesina, J.O.

“…Field trials were carried out on Apomu soil (Psammentic usthorthent) and Egbeda soil (Oxic paleustalf) in southern Nigeria to investigate the effects of fertilizer and weeding on growth and yield of maize (Zea mays L.) under no-tillage and tilled land preparations. …”
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Alley cropping for food crop production in the humid and subhumid tropics por Kang, B., Van der Kruijs, A.C.M.B., Couper, D.C.

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Studies on multipurpose fodder trees and shrubs in West Africa: Variation in determinants of forage quality in Albizia and Paraserianthes species por Larbi, Asamoah, Smith, Jimmy W., Adekunle, I.O., Kurdi, I.O.

“…After one year of establishment forage production was assessed by harvesting trees at 0.5 m above ground in the main wet (April-August) minorwet (September-Novermber) and dry (December-March) seasons at Ibadan, southwestern Nigeria. Forage smaples from the main-wet and dry seasons were incubated for 6, 12, 48 72 and 96 h in rumen-fistulated cattle to estimate in sacco DM and N degradation characteristics. …”
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Herbage yield and quality of Gliricidia sepium under different cutting heights and defoliation frequencies por Tarawali, G., Iji, P.A., Chionuma, P.C., Obot, U.

“…The browse shrub Gliricidia sepium, introduced into the subhumid zone of Nigeria to serve as a supplementary-forage source for ruminant during the dry season, has the undesirable characteristic of shedding its leaves during its flowering phase which coincides with the early dry season. …”
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Characterisation of a potyvirus from Centrosema pubescens Benth por Odedara, O.O., Hughes, Jacqueline d'Arros, Tarawali, Shirley A., Odebode, A.C., Winter, S.

“…A virus, 750 /I > 18 nm, was isolated from Centrosema pubescens from Nigeria, causing leaf malformation, mosaic and mottling on the plant. …”
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The introduction of animal traction into inland valley regions. 1. Manual labour and animal traction in the cultivation of rice and maize: A comparison por Lawrence, P.R., Dijkman, J.T., Jansen, G.P.

“…Rice, a cash crop, was grown in the alluvial valley bottom (fadama) of an inland valley region of central Nigeria. The main staple crop, maize, was grown on the adjacent upland areas. …”
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The introduction of animal traction into inland valley regions. 3. Different cultivation techniques for maize por Dijkman, J.T., Lawrence, P.R.

“…Maize was grown in the upland areas surrounding an inland valley in central Nigeria in a randomized block experiment using six cultivation techniques (manual cultivation with a hand hoe (MC); ploughing in both directions to throw up a ridge (DPL); single ploughing with the seed placed on the ridge (SPL); ridging with a wooden, single tine, locally made ‘bush’ plough (BPL); single ploughing with the seed placed in the furrow (FPL) and ridging with a conventional ridger (RID) with or without pre-emergence herbicide (PEH) with two replicates. …”
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Lack of phylogeographic structure in Nigerian village chickens revealed by mitochondrial DNA D-loop sequence analysis por Adebambo, Ayotunde Olufunmilayo, Mobegi, V.A., Mwacharo, Joram M., Oladejo, B.M., Adewale, R.A., Iiri, L.O., Makanjuola, B.O., Afolayan, O., Bjornstad, G., Han Jianlin, Hanotte, Olivier H.

“…The present study utilizes sequences of mitochondrial DNA (mtDNA) D-loop region of 232 village chickens from Southern and Northern Nigeria to determine the origin and diversity of Nigerian local chickens. …”
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Promoting a versatile but yet minor crop : Soybean in the farming systems of Kenya por Chianu, Jonas N., Ohiokpehai, O, Vanlauwe, Bernard, Adesina, A.A., Groot, Hugo de, Sanginga, Nteranya

“…Using a three-tier-approach, developed based on successful soybean promotion strategies in Nigeria and Zimbabwe, this study assesses the effect of market development at household-level, community- level, and linking farmers’ groups to industrial processors on sustainable soybean promotion in Kenya. …”
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Taungya farming and poverty alleviation: the case of Onigambari forest reserve, Oyo State por Uzokwe, Veronica N.E., Adejobi, A.O., Olorundare, E.

“…Aforestation is a key forest policy in Nigeria and it usually goes with arable farming. This paper describes existing forest policies in Onigambari forest reserve, Oyo State and further examines the socioeconomic/demographic characteristics of farming households as they affect poverty status of the households in the study area. …”
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Evaluation of isolates of Trichoderma, pseudomonas and bacillus species as treatment for the control of post-harvest fungal rot disease of yam (Dioscorea spp.) por Dania, V.O., Fadina, O.O., Ayodele, M., Kumar, P. Lava

“…Rotted yam tubers were collected across three agroecological zones in Nigeria to isolate six infecting fungal pathogens: Aspergillus niger, Lasiodiplodia theobromae, Rhizoctonia solani, Penicillium oxalicum, Fusarium oxysporum and Sclerotium rolfsii. …”
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Evaluation of early maturing cowpea (Vigna unguiculata) germplasm for variation in phosphorus use efficiency and biological nitrogen fixation potential with indigenous rhizobial po... por Abaidoo, Robert C., Dare, M.O., Killani, S., Opoku, A.

“…A total of 175 early maturing cowpea genotypes were evaluated in 2010 and 2011 for P use efficiency (PUE) and BNF with an indigenous rhizobial population at Shika in the Northern Guinea savanna of Nigeria. There were significant genotypic variations for all 11 variables measured. …”
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Surface and charge characteristics of selected soils in the tropics por Gallez, A., Juo, A.S.R., Herbillon, A.

“…Specific surface area and surface charge characteristics of some Alfisols and Ultisols from Nigeria were studied. Specific surface are measured by ethylene glycole retention was generally 2 to 3 times greater than the specific surface area measured by N2 adsorption for both surface and subsoil samples. …”
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Regulatory challenges for biological control por Hoeschle-Zeledon, Irmgard, Neuenschwander, Peter, Kumar, P. Lava

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