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Mostrando ítems 1 a 9 de 12.
  1. Library Resource
    Informes e investigaciones
    Diciembre, 1989
    Nigeria, África, África occidental

    Grazing reserves in Nigeria are areas set aside for the use of pastoralists and are intended to be the foci of livestock development. The stated purpose of grazing reserves is the settlement of nomadic pastoralists they offer security of tenure as an inducement to sedentarization through the provision of land for grazing and permanent water. This paper reviews problems associated with grazing reserves and offers suggestions to make them more productive and relevant to the needs of the intended beneficiaries.

  2. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1989
    Malí, África, África occidental

    This study identifies the causes of the observed differences in flock productivity in a central Malian village, in a rainfed millet agropastoral subsystem. Small ruminant productivity, management factors and socio-economic characteristics are analysed. The causes leading to the observed differences in small ruminant productivity are related to the owner's socioeconomic characteristics, to his management strategies or to preferences for one or the other small ruminant species.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 1989
    Etiopía, África, África oriental

    Investigates the effects of improved surface drainage on the productivity of Vertisols in a wheat-and-chickpea cropping trial conducted in 1987 at ILCA;s Debre Zeit research site in the Ethiopian highlands. Chickpea plots were subjected to four irrigation treatments, viz, no irrigation, irrigation at planting, 35 days and 70 days after planting. The trial showed that with a starter irrigation to aid the germination of a second crop, sequential cropping of two crops in the same growing season is feasible in the Debre Zeit.

  4. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1989
    Etiopía, África, África oriental

    Reviews the extent and use of crop residues as livestock feeds in Ethiopia with special emphasis to wheat with respect to varietal difference and agronomic practices to enhance the utilisation of the straw. Lists area and yield of major crops in Ethiopia. Presents data on yield & chemical composition of various crop residues, weight gains of steers fed crop residue, and effect of N fertilization on grain yield and quality & quantity of wheat straw. Also summarises results of an undersowing trials of forage crops to wheat.

  5. Library Resource
    Informes e investigaciones
    Diciembre, 1989
    Zimbabwe, África, África austral

    Throughout Africa the importance of land use issues in relation to tsetse control planning has been emphasized consistently in the tsetse literature. Because of inappropriate land use, concerns for the environment in tsetse-freed areas have been expressed frequently. This debate is very relevant to Zimbabwe, where extensive tsetse control operations in recent years have confined the remaining area of tsetse infestation to parts of the Zambezi valley, a semi-arid region of the country with a fragile eco-system and limited agricultural potential.

  6. Library Resource
    Documentos de política y resúmenes
    Diciembre, 1989
    Guinea, Australia, Papua Nueva Guinea, Japón, Oceanía

    As part of phase one activities undertaken under the Sepik River Fish Stock Enhancement Project an analysis of trout stocking practices in PNG was made. Work undertaken by the project with regard to trout has been restricted for reasons outlined below. This report is, therefore, preliminary in nature and may be modified as more field data become available. Trout is an exotic species in PNG and has been, and still is, stocked by various PNG authorities. Experiences relating to trout are, therefore, highly relevant to the Sepik River Fish Stock Enhancement Project.

  7. Library Resource
    Documentos de política y resúmenes
    Diciembre, 1989
    Australia, Países Bajos, Japón, Guinea, Papua Nueva Guinea, Oceanía

    This document summarises the information available on the habits of fishes in floodplain regions of the Sepik and Ramu River systems, Papua New Guinea, with respect-to project PNG/85/001

  8. Library Resource
    Documentos de política y resúmenes
    Diciembre, 1989
    Guinea, Australia, Irlanda, Papua Nueva Guinea, Oceanía

    This document provides background information for project PNG/85/001. A synthesis of knowledge of various aspects of the Sepik and Ramu River catchments is provided. The information is presented in relation to project objectives and activities. Most sections have been summarised from existing books and other information (quoted where relevant) but have been placed within the context of the Sepik and Ramu rivers and project PNG/85/001. The subjects covered here are relevant to fisheries related matters and this is explained later in the Discussion section.

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