Striga hermonthica is a serious parasite of cereals in most of the semi-arid savanna zone of West Africa, causing substantial yield loss. It has been observed that some soybean cultivars are capable of stimulating germination of S. hermonthica seed, which would reduce the seed bank in the soil. T...
Carsky, R.J.
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Berner, B.D.
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Oyewole, K.
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Dashiell, Kenton E.
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Schulz, S.
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[Reduction of Striga hermonthica parasitism on maize using soybean rotation]
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Reduction of Striga hermonthica parasitism on maize using soybean rotation
Agronomic results indicate that maize grain yields generally are higher when the crop is planted following soybean than in continuous maize cultivation in the moist savanna agroecological zones of West Africa. Many factors have been hypothesized to explain this phenomenon, including enhanced N av...
Sanginga, N.
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Okogun, J.
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Vanlauwe, Bernard
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Dashiell, Kenton E.
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[The contribution of nitrogen by promiscuous soybeans to maize based cropping the moist savanna of Nigeria]
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The contribution of nitrogen by promiscuous soybeans to maize based cropping the moist savanna of Nigeria
The N2Africa Soil Improvement project by CIAT-TSBF, which works with nitrogen-fixing soil bacteria to increase soybean productivity, provided several crop production materials to over 4000 farmers in Western Kenya between March and April 2011. The materials included 42 demonstration kits, 4084 pa...
Most impact studies of agricultural technologies use economic models, with little direct attention being paid to the actual impact on the lives of resource-poor farmers. This paper uses a social impact assessment (SIA) framework to examine the level of adoption and impact of soybean on farm house...
Sanginga, P.
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Adesina, A.A.
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Manyong, Victor M.
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Otite, O.
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Dashiell, Kenton E.
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[Social impact of soybean in Nigerias southern Guinea savanna]
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Social impact of soybean in Nigerias southern Guinea savanna
Two varieties of soybean (Glycine max (L.) Merr.) and a maize (Zea mays L.) control crop were grown in replicated trials at 10 sites in the Guinea savana of Nigeria in 1993 followed by a test crop of maize in 1994 with 20 or 60 kg N ha-1 to test effect of soybean on subsequent maize grain yield. ...
Deux varietes de soya (Glycine max (L) Merr.) et une varietede mas (Zea mays L.) en temps que temoin ont ete cultivees en essais repliques sur 10 sites dans la savane Guineenne du Nigeria en 1993. Ces cultures ont ete suivies d'une culture-test de mais en 1994 avec 20 ou 60 kg N ha-1. L'augmentat...
Carsky, R.
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Abaidoo, R.C.
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Dashiell, Kenton E.
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Sanginga, N.
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[Effect of soybean on subsequent maize grain yield in the Guinea savanna zone of West Africa]
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Effect of soybean on subsequent maize grain yield in the Guinea savanna zone of West Africa
Striga hermonthica, an obligate root parasite of grasses, is one of the most severe constraints to cereal production in sub-Saharan Africa. In the recent past, prior to increased production pressure on land, S. hermonthica was controlled in African farming systems by prolonged crop rotations with...
Berner, D.A.
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Carsky, R.
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Dashiell, Kenton E.
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Kling, J.
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Manyong, Victor M.
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[A land management based approach to integrated Striga hermonthica control in subSaharan Africa]
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A land management based approach to integrated Striga hermonthica control in subSaharan Africa
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.
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Akem, C.N.
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[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.
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Dashiell, Kenton E.
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[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