Biological nitrogen fixation (BNF) potential of 12 soybean genotypes were evaluated in condition of low and sufficient supply in two acid soils of southern Cameroon. The P sources were Togolese phosphate rock (PR) and triple super phosphate (TSP). The experiment was carried out during two consecu...
Jemo, M.
,
Nolte, C.
,
Tchienkoua, M.
,
Abaidoo, R.C.
,
[Biological nitrogen fixation potential by soybeans at two lowP soils of southern Cameroon]
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Biological nitrogen fixation potential by soybeans at two lowP soils of southern Cameroon
Improving bacterial nitrogen fixation in grain legumes is central to sustainable intensification of agriculture in sub-Saharan Africa. In the case of soyabean, two main approaches have been pursued: first, promiscuous varieties were developed to form effective symbiosis with locally abundant nitr...
Heerwaarden, Joost van
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Baijukya, Frederick P.
,
Kyei-Boahen, S.
,
Adjei-Nsiah, Samuel
,
Ebanyat, Peter
,
Kamai, N.
,
Woldemeskel, Endalkachew
,
Kanampiu, F.
,
Vanlauwe, Bernard
,
Giller, Ken E.
,
[Soyabean response to rhizobium inoculation across sub-Saharan Africa: Patterns of variation and the role of promiscuity]
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Soyabean response to rhizobium inoculation across sub-Saharan Africa: Patterns of variation and the role of promiscuity
Objective: The experiment was conducted to test five soybeans (Glycine max L. Merrill) genotypes at El-Gantra farm in Sennar State, Sudan. The objectives of this study were to (i) evaluate genetic variability in
performance of five soybean genotypes under different sowing dates; (ii) determine th...
Ngalamu, T.
,
Meseka, S.K.
,
Ashraf, M.
,
[Performance of soybean (Glycine max L Merrill) genotypes under different planting dates in Sennar State of the Sudan]
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Performance of soybean (Glycine max L Merrill) genotypes under different planting dates in Sennar State of the Sudan
Boukar, O.
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Abdoulaye, Tahirou
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Tamo, M.
,
Agrama, H.
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Tefera, H.
,
Fatokun, C.A.
,
Boahen, S.
,
[A success tale on improving two legume crops in Africa]
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A success tale on improving two legume crops in Africa
The International Institute of Tropical Agriculture and collaborating partners have been introducing and disseminating short season soybean varieties among farm households in the Sudan savannas of Northern Nigeria since 2008. Yet, there is no empirical information on the profitability and technic...
Ugbabe, O.O.
,
Abdoulaye, Tahirou
,
Kamara, A.
,
Mbaval, J.
,
Oyinbo, O.
,
[Profitability and technical efficiency of soybean production in northern Nigeria]
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Profitability and technical efficiency of soybean production in northern Nigeria
Two new ‘legumoviruses’ (genus Begomovirus; family Geminiviridae) naturally infecting soybean (Glycine max L. Merr.) in Nigeria were molecularly characterized. Based on characteristic symptoms in soybean, the two viruses are provisionally designated as Soybean mild mottle virus (SbMMV) and Soybea...
The contribution of root and leaf litter to soil nitrogen dynamics, nitrogen uptake and balance was evaluated under cereal–legume rotations in a tropical moist savanna soil. Two legumes, soyabean (Glycine max) and stylo (Stylosanthes hamata), and maize (Zea mays) as a control were grown in four f...
Oikeh, S.
,
Chude, V.
,
Carsky, R.
,
Weber, G.
,
Horst, W.
,
[Legume rotation in the moist tropical savanna: managing soil nitrogen dynamics and cereal yields in farmers' fields]
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Legume rotation in the moist tropical savanna: managing soil nitrogen dynamics and cereal yields in farmers' fields
Three soybean [Glycine max (L.) Merr.]cultivars (Samsoy 1, TGx 1025-12E and TGx 996-26E) were evaluated for yield losses resulting from frogeye leaf spot caused by Cercospora sojina Hara. Replicated field plots were established at two locations in Nigeria that have a high natural infestation of C...
Dashiell, Kenton E.
,
Akem, C.N.
,
[Yield losses in soybeans from frogeye leaf spot caused by Cercospora sojina]
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Yield losses in soybeans from frogeye leaf spot caused by Cercospora sojina
Southern blight of soyabeans caused by S. [Corticium] rolfsii, was observed for the first time in Nigeria, in field nurseries at Bukuru, near Jos in the Plateau State, in 1989. Over 40% of plants in plots of the cultivar TGx 1025-12E were blighted 2 weeks after the plots had been rogued to elimin...
Akem, C.N.
,
Dashiell, Kenton E.
,
[First report of southern blight caused by Sclerotium rolfsii on soybeans in Nigeria]
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First report of southern blight caused by Sclerotium rolfsii on soybeans in Nigeria
Zambia has three primary agro-ecological regions, with each region having specific ecological characteristics. Region II agro-ecological zone of Zambia has low nutrient reserves and poor water holding capacity due to moderately leached clayey to loamy soil; this has led to low soybean productivit...
Alamu, E.O.
,
Gondwe, T.
,
Akinwale, G.
,
Suzuki, K.
,
Chisonga, C.
,
Chigeza, G.
,
Maziya-Dixon, B.B.
,
[Impact of soil fertility management practices on the nutritional quality of Soybean (Glycine max (l.) Merr.) varieties grown in Eastern Zambia]
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Impact of soil fertility management practices on the nutritional quality of Soybean (Glycine max (l.) Merr.) varieties grown in Eastern Zambia