Recherche
4 items
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Farmers’ rice knowledge and adoption of new cultivars in the Tillabéry region of western Niger
Rice is the third most important crop in Niger and showsthe most rapidly increasing consumption. Rice importsgrew from 40,000 t in 1995 to 210,000 t in 2005 at a costof US$ 71.4 million in a country where nearly 60% of thepopulation lives below the poverty line [1,2]. Rice is produced mainly in the region of Tillabéry (75% national production) where about 1/7 of Niger’ s population live [3,4].With 100,000 ha of arable and irrigable lands, this regionof Tillabéry has nearly 50% of the country’ s irrigable land.There are 29 irrigated rice schemes (with double cropping each year) that cover 7,432 ha (85.3% of the nationalirrigated schemes) in Tillabéry. The average rice grain yield in this agrosystem is 3.5 to 4.5 t ha−1[5,6]. This intensive system, under the control of local farmer unions andsupervised by the Office National des Aménagements Hydro-Agricoles (ONAHA), currently produces 30,000 to
35,000 t year−1. Private irrigated systems with individual
water pumps are also found in this area. The irrigated ecosystems are planted only with improved Asia-type (Oryzasativa) cultivars. The traditional rice growing in the Tillabéry region accounts for about 62.13% of lowland rice production. -
Contributions and appreciation of adansonia digitata L. food products in Zinder Region, Niger
A detailed description of the plant was proposed around 1750 by Michel Adanson, a French botanist who spent several years in Senegal, and took samples to Paris. Adansonia digitata is the scientific name proposed by Carl Von LINNE and Bernard de Jussieu. It is a secular tree belonging to the Bombacaceae family, imposing by its size, it is the most massive of all known woody species, unlike other species of the genus Adansonia endemic to Madagascar or Australia (Adansonia grandidieri Baill., Adansonia madagascarensis Baill, Adansonia suarezensis H. Perrier and Adansonia Baill, etc.). It is mainly present in the sub-humid and semi. -
Physicochemical properties of baobab beeds (Adansonia digitata) Crude Oil and Its Use in Food Frying
This study was conducted to recognize the physical and chemical properties of baobab seeds crude oil and its use in food frying process. The seeds were milled for proximate analysis: oil content, protein content, moisture content, total ash, crude fiber, and carbohydrate, then the results were recorded 27.5%, 14.0%, 5.7%, 3.4%, 15.0%, 34.4% respectively. The oil was extracted by mechanical pressing, then the physical properties density, viscosity, refractive index, and moisture content were tested, the results were recorded 0.9139, 22.6 cp, 1.4690, 0.1% respectively. Also the chemical properties peroxide value, free fatty acids, saponification value, and iodine value, were determined, the results were recorded 9.0 meqo2/kg, 1.8%, 240.4, 54.0 respectively. -
Culture du riz dans le bassin du fleuve Niger en aval du barrage de Kandadji à la frontière Nigéria
L’objectif de l’étude est de faire un état de lieux sur les périmètres irrigués dans le bassin du fleuve Niger en aval du barrage de Kandadji à la frontière Nigéria. Cette étude a été réalisée dans une approche qualitative utilisant ainsi des observations directes sur le terrain, la recherche bibliographique et des entretiens auprès de la population ciblée. Les résultats de l’étude révèlent que la plupart des aménagements hydro-agricoles se concentrent dans la région de Tillabéry le long du fleuve. Quant aux périmètres hors aménagement, on les retrouve surtout dans la région de Dosso le long du fleuve et au niveau de certaines mares permanentes.