Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 11.
  1. Library Resource
    Articles et Livres
    décembre, 1980
    Inde, Iraq, Honduras, États-Unis d'Amérique, Italie

    An international journal of forestry and forest industries

  2. Library Resource
    Articles et Livres
    décembre, 1980
    Ouganda, Philippines, Asie

    Revista internacional de silvicultura e industrias forestales

  3. Library Resource
    Articles et Livres
    décembre, 1980
    Honduras

    Revue internationale des forts et des industries forestires

  4. Library Resource
    Articles et Livres
    décembre, 1980
    Kenya, États-Unis d'Amérique, Belgique, Japon, République dominicaine, Mexique, République-Unie de Tanzanie, Inde, Bulgarie, Pays-Bas, Venezuela, Costa Rica, Barbade, Brésil

    Methods for evaluating nutrient status in order to obtain better plant growth and increased yield are constantly being developed and improved. New analytical techniques and procedures for soil and plant analysis have been invented and tested in many countries and laboratories. There have been innovations in data processing leading to preparation of more refined and specific fertilizer recommendations. The purpose of the Consultation was: i.

  5. Library Resource
    Articles et Livres
    décembre, 1980
    Italie

    The paper discusses the problems facing countries when managing stocks of fish that move between their EEZs and the EEZs of adjacent countries, or onto the high seas. The action needed depends on the pattern of movement of the stocks. The different patterns of movement are discussed; they vary from small local dispersions in which only a small proportion of the stock cross boundaries between national EEZs to long migrations in which virtually all the stock may move from one EEZ to another.

  6. Library Resource
    Articles et Livres
    décembre, 1980
    Bangladesh, Allemagne, Pérou, Indonésie, Bulgarie, Bolivie, Portugal, Myanmar, Roumanie, Japon, Turquie, Ouzbékistan, Italie, Brunéi Darussalam, Inde, Bhoutan, Paraguay, Mexique, Brésil, Grèce, Asia du sud-est

    Projections reveal that to sustain the likely world population in the year 2000, an increase of 60 percent in agricultural production will be required. "Is there sufficient land to meet these needs?" becomes the overriding question. However, little precise information exists on which to base a reliable answer. Previous appraisals of the global extents of arable lands, to support present and future human populations, vary from 3 to 7 thousand million hectares. Estimates of the populations these lands can support, vary from 7.5 to 40 thousand million.

  7. Library Resource
    Articles et Livres
    décembre, 1980
    Bénin, Nigéria, Zambie, Mali, Ghana, Congo, Sierra Leone, Niger, Colombie, Kenya, Libéria, Japon, Cameroun, Tchad, Sénégal, Soudan, Togo, Côte d'Ivoire, Afrique

    Policy makers as well as scientists have started to acquire an honest appreciation of the possibilities of reducing the wastage of materials which could be profitably utilized for improving or maintaining soil productivity. In addition, the great opportunities offered by making more efficient use of the potentials of biological nitrogen fixation in farming systems are now fully recognized. A number of recommendations and suggested guidelines were made by the various Working Groups during the two-week Workshop.

  8. Library Resource
    Articles et Livres
    décembre, 1980
    Indonésie, États-Unis d'Amérique, Philippines, Ouganda, Chine, Italie, Asie

    An international journal of forestry and forest industries

  9. Library Resource
    Articles et Livres
    décembre, 1980

    Revista internacional de silvicultura e industrias forestales

  10. Library Resource
    Articles et Livres
    décembre, 1980
    Suisse, Belgique

    General principles of plant nutrition don't furnish the concrete information, necessary for practical treatments in a given situation. Thus, the questions arise which parameters must be considered an how can they be determined. This leads to consider the concepts of nutrients diagnosis, as well as the methodology and the corresponding equipment and instrumentation, for putting it into practice.

Rechercher dans la bibliothèque foncière

Grâce à notre moteur de recherche robuste, vous pouvez rechercher n'importe quel document parmi les plus de 64 800 ressources hautement conservées dans la bibliothèque du foncier.

Si vous souhaitez avoir un aperçu de ce qui est possible, n'hésitez pas à consulter le guide de recherche.

 

Partagez cette page