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The effects of a new formulation of atrazine for weed control in maize were studied during the wet season of 2002 and 2003 at Ibadan, Nigeria. The treatments were the new formulation at doses from 1.0 to 3.5 kg a.i./ha and the old formulation at the recommended dose of 3.0 kg a.i./ha. Untreated a...


Chikoye, D.Udensi, U.E.Lum, A.[Performance of a new formulation of atrazine for weed control in maize in Nigeria]Performance of a new formulation of atrazine for weed control in maize in Nigeria

Cogongrass is an aggressive perennial weed, which causes severe yield losses in major crops of the moist savanna of West Africa. Field studies were conducted from 2000 to 2002 at Alabata and Ilorin, Nigeria, to evaluate the influence of dosage and time of nicosulfuron application on the control o...


Fontem Lum, A.Chikoye, D.Adesiyan, S.[Effect of nicosulfuron dosages and timing on the post emergence control of cogongrass (Imperata cylindrica) in corn (Zea mays)]Effect of nicosulfuron dosages and timing on the post emergence control of cogongrass (Imperata cylindrica) in corn (Zea mays)

Speargrassseverely constraints crop production in the sub-humid lowlands of West Africa. Researchers have identified and demonstrated effectivemanagement techniques but the adoption rate among farmers is still low. Data were collected from 41 communities in Cross River, Kogi and BenueStates in Ni...


Chikoye, D.Ellis-Jones, J.Tarawali, G.Kormawa, P.M.Nielsen, O.Ibana, S.Avav, T.[Farmers perceptions of the speargrass (Imperata cylindrica) problem and its control in the lowland subhumid savannah of Nigeria]Farmers perceptions of the speargrass (Imperata cylindrica) problem and its control in the lowland subhumid savannah of Nigeria

The parasitic angiosperms, Striga hermonthica and S. gesnerioides, obligate root parasites endemic in sub-Saharan Africa, constitute severe constraints to cereal and legume production in West and Central Africa. Over the years, a range of effective component technologies has been identified for S...


Emechebe, A.M.Ellis-Jones, J.Schulz, S.Chikoye, D.Douthwaite, BoruKureh, I.Tarawali, G.Hussaini, M.A.Kormawa, P.M.Sanni, A.[Farmer perception of the Striga problem and its control in northern Nigeria]Farmer perception of the Striga problem and its control in northern Nigeria

Field studies carried out in a forest transition site on a tropical Alfisol in southwestern Nigeria, show that shading by gliricidia (Gliricidia sepium (Jacq.) Steud) and leucaena (Leucaena leucocephala (Lam.) de Wit) hedgerow species reduced density of speargrass (Imperata cylindrica (L.) Raeusc...


Anoka, U.A.Akobundu, I.O.Okonkwo S.N.C.[Effects of Gliricidia sepium (Jacq) Steud and Leucaena leucocephala (Lam.) de Wit on growth and develoment of Imperata cylindrica (L.) Reuschel]Effects of Gliricidia sepium (Jacq) Steud and Leucaena leucocephala (Lam.) de Wit on growth and develoment of Imperata cylindrica (L.) Reuschel

Until recently, breeding programs in Africa placed little emphasis on grain quality improvement. Consequently, some farmers have not adopted improved high yielding varieties because they lacked desired quality characteristics for processing and other end uses. We conducted this study to determine...


Oikeh, S.O.Kling, J.G.Okoruwa, A.E.[Nitrogen fertilizer management effects on maize grain quality in the West African moist savanna]Nitrogen fertilizer management effects on maize grain quality in the West African moist savanna

Various factors influencing the adoption of weed control technologies in Abia State were studied. A multi-stage random sampling procedure was used to select 510 cassava farmers in 2006. Results showed that 56.5% of the respondents were females, that are largely (90.2%) in their productive years. ...


Udensi, U.Tarawali, G.Ilona, P.Okoye, B.C.Dixon, A.[Adoption of chemical weed control technology among cassava farmers in south eastern Nigeria]Adoption of chemical weed control technology among cassava farmers in south eastern Nigeria
Botero Botero, Raúl[Características agronómicas de las braquiarias comerciales utilizadas en América tropical]Características agronómicas de las braquiarias comerciales utilizadas en América tropical

Several herbicides applied singly and in combination were evaluated for weed control and for their effects on crop yield in direct‐seeded lowland rice under poor water management conditions characteristic of the conditions in which lowland rice is grown by most farmers in West Africa. Several her...


Akobundu, I.O.[Weed control in direct-seeded lowland rice under poor water control conditions]Weed control in direct-seeded lowland rice under poor water control conditions
Doll, Jerry D.Piedrahíta Castañeda, Wilson[Efectos de aplicaciones repetidas de paraquat y glifosato sobre las fluctuaciones de poblaciones de malezas]Efectos de aplicaciones repetidas de paraquat y glifosato sobre las fluctuaciones de poblaciones de malezas

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