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Showing items 1 through 9 of 4.
  1. Library Resource
    Journal Articles & Books
    December, 2005
    Angola, Burkina Faso, Bangladesh, Nigeria, Rwanda, Mali, Burundi, Zimbabwe, Eswatini, Ghana, Congo, Sierra Leone, Malawi, Niger, Mozambique, Liberia, Lesotho, Madagascar, Togo, Botswana, Gabon, Kenya

    Les évaluations des bilans en éléments nutritifs aident à déterminer les effets des pratiques agricoles sur la fertilité des sols. Selon les situations, plusieurs approches et méthodes ont été utilisées. Ce bulletin présente un apercu de la situation actuelle des études des bilans en elements nutritifs. Il fait apparaître l'évolution des différentes approches et méthodes, les compare et souligne les améliorations effectuées ainsi que les questions qui restent à résoudre.

  2. Library Resource
    Journal Articles & Books
    December, 1993
    Bangladesh, Nigeria, Nepal, Iran, Israel, Zimbabwe, Sri Lanka, Eswatini, Ghana, Congo, Pakistan, Niger, Panama, Kenya, Yemen, Philippines, Botswana, Senegal, Togo, Cuba
  3. Library Resource
    International Conventions or Treaties
    Algeria, Angola, Egypt, Equatorial Guinea, Benin, Nigeria, Mauritius, Mauritania, Zimbabwe, Namibia, Guinea-Bissau, Eswatini, Ghana, Congo, Guinea, Ethiopia, Comoros, Eritrea, Cape Verde, Democratic Republic of the Congo, Liberia, Libya, Lesotho, Uganda, Somalia, Madagascar, Central African Republic, Tanzania, Botswana, Senegal, Chad, Gabon, Burkina Faso, Malawi, Mozambique, Zambia, Gambia, Mali, Burundi, Sao Tome and Principe, Djibouti, Sierra Leone, Seychelles, Rwanda, Morocco, Niger, South Africa, Togo, Tunisia, Ivory Coast, Sudan, Cameroon, Kenya, Middle Africa, Western Africa, Eastern Africa, Southern Africa, Northern Africa, Western Asia, Africa

    The Contracting States, in the belief that objectives set out in the Preamble would be better achieved by amending the 1968 Algiers Convention on the Conservation of Nature and Natural Resources by expanding elements related to sustainable development, have agreed on measures to enhance environmental protection, to foster the conservation and sustainable use of natural resources; and to harmonize and coordinate policies in these fields with a view to achieving ecologically rational, economically sound and socially acceptable development policies and programs for the Convention area.

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