Résultats de la recherche | Land Portal

Résultats de la recherche

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  1. 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.

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