May 2008
The fish industry in Eritrea: From comparative to competitive advantage
The paper examines the main constrains in stimulating extent of production driven supply chains, that could able to transform into market driven supply chain management.; Questionnaires, were developed and administered to marketing agents using purposive sampling, with the application of Porter’s diamond of national competitive advantage. Red sea being underexploited resource; and it is unique...
May 2008
Food security situation in northern Ghana, coping strategies and related constraints
This paper looks at the food security situation in three most deprived and poverty-stricken regions in the Northern parts of Ghana and examines how farmer households cope during food insecure periods. The study concludes that although farmers in these regions cultivate purposely for household consumption and sell the surplus, food was not available throughout the year in the farmer households interviewed. On...
May 2008
Constraints to privatization and commercialization of agricultural extension services as perceived by extension professionals and farmers
This study examined the perception of constraints to privatization and commercialization (P and C) of agricultural extension services by extension professionals and farmers. The study was carried out in Delta State, Nigeria. A sample size of 224 respondents comprising of 134 extension professionals and 90 farmers were involved in the study. Data for the study were collected through the use of structured...
May 2008
Selected chemical properties of soil in the traditional irrigation schemes of the Mbulu district, Tanzania
A survey of chemical soil properties was conducted on six selected irrigation schemes of the Mbulu district, northern Tanzania. The focus of the study was to establish the status of the main mineral elements important for plant growth and crop production. Soil samples were collected from different sites and were analysed for physical chemical characteristics leading to the assessment of the soil fertility...
May 2008
An assessment of the use of mineral and organic fertilizers by smallholder farmers in Vhembe district, Limpopo province, South Africa
The use of mineral and organic fertilizers as straight fertilizers or in appropriate combinations may alleviate the problem of declining soil fertility and hence lead to increased crop yields. The objectives of this study were to (i) assess the use of mineral and organic fertilizer and (ii) determine the constraints with regards to use of inorganic and organic fertilizers by smallholder farmers in...
May 2008
Entomofauna of Cucumeropsis mannii Naudin, its impact on plant yield and some aspects of the biology of Dacus bivitattus (Diptera: Tephritidae)
Cucumeropsis mannii Naudin, (Cucurbitaceae) is cultivated in Africa for its important seeds used as food and in the traditional medicine. This work carried out in Yaoundé (Cameroon) focuses on the study of the entomofauna of C.mannii, on the impact of insects on plant yield; we studied also some aspects of the biology of Dacus bivitattus, main pest of this plant. Insect...
May 2008
Evaluation of pearl millet for yield and downy mildew resistance across seven countries in sub-Saharan Africa
Forty pearl millet germplasms consisting of traditional and improved open pollinated varieties, hybrids, and inbreds were selected to represent diversity for grain yield or quality, fertility restoration for specific cytoplasms, resistance to diseases or pests, variation in height and maturity, and origin. Evaluations were conducted in field trials in Ghana, Mali, Nigeria, and Senegal in 2003 and 2004 and in...
May 2008
Effect of dietary supplementation of fermented fish silage on egg production in Japanese quail (Coturnix coromandelica)
The effect of dietary supplementation of fermented fish silage on egg production in Japanese quail was investigated. Body weight gain, egg production and egg quality parameters (shape index, albumen index, yolk index, shell thickness and Hauge unit) were determined. There was no significant difference observed in the body weight gain in fermented fish silage supplemented birds as compared to that of dried...
May 2008
Growth and evapotranspiration of groundnut (Arachis hypogaea) in a transitional humid zone of Nigeria
This experiment was conducted in the transitional humid zone of Nigeria to examine crop evapotranspiration and growth characteristics of groundnut (Arachis hypogaea L.) for that ecological zone. The crop was grown in and outside a drainage lysimeter for two years. Mean total water used (Evapotranspiration) by the crop during the 105 days from sowing to harvest was 302.5 mm. More water was used between...
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