Resultados de la búsqueda | Land Portal

Resultados de la búsqueda

Mostrando ítems 1 a 9 de 17.
  1. Library Resource
    Document aggregated from Resource Equity Landwise Database
    Enero, 1992
    Malí
  2. Library Resource
    Document aggregated from Resource Equity Landwise Database
    Enero, 1991
    Guinea-Bissau
  3. Library Resource
    Document aggregated from Resource Equity Landwise Database
    Enero, 1991
    Sierra Leona
  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 1991
    Nigeria, África, África occidental

    In agriculture, surveying is required to prepare topographical maps that indicate variations in the level of the land's surface. Topographical maps are necessary as a base for the preparation of research station maps which include layout of field, buildings, roads, and soil conservation measures.

  5. Library Resource
    Documentos de política y resúmenes
    Diciembre, 1991
    Angola, Nigeria, Mauritania, Guinea, Sudán, Ghana, Namibia, África

    Agriculture, forestry and fishing are important sectors of Ghana's economy and improvement in the performance of these sectors is central to the country's current economic recovery programme.1 The severe economic decline which the country went through between the early 1970's and the early 1980's affected poorer socio-economic groups in particular 2 through depressed wage levels and increased unemployment.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 1991
    Francia, Zambia, Afganistán, Zimbabwe, Australia, Grecia, Guinea, Etiopía, Pakistán, Colombia, Panamá, Kenya, Jordania, Filipinas, Libia, Italia, Botswana, Países Bajos, Argentina, Sudán, Europa, Asia, África, América Septentrional

    Extensive grazing is the predominant form of land use on at least a quarter of the world’s land surface, in which livestock are raised on food that comes mainly from rangelands. Extensive grazing differs from crop or forestry production, in which the produce remains in situ whilst growing. Evaluation for extensive grazing, unlike that for cropping or forestry, must take into account the production of both grazing forage, termed primary production, and the livestock that feed on this forage, termed secondary production.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 1991
    Egipto, Bangladesh, Nigeria, Kenya, Israel, Chile, Perú, China, Etiopía, República de Corea, Níger, Tailandia, Nepal, Marruecos, Filipinas, Somalia, Italia, Tanzania, India, Sudán, Brasil

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