Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 546.
  1. Library Resource
    Rapports et recherches
    décembre, 2017
    Kenya, Nigéria, Ouganda, Burundi, Madagascar, Zimbabwe, République-Unie de Tanzanie, Soudan, Ghana, Éthiopie, Malawi, Afrique sub-saharienne, Afrique, Afrique orientale

    Our goal is to provide the scientific basis for development investments and policies that promote more productive, profitable agriculture, and healthier diets at no environmental cost. Low-income, smallholder farmers face significant challenges across sub-Saharan Africa (SSA). High population growth is coinciding with migration to the cities as younger populations seek out higher income-earning opportunities. Inadequate infrastructure and few markets for agricultural production in rural areas, for example, are leading to stagnated opportunities for smallholders.

  2. Library Resource
    Articles et Livres
    décembre, 1991
    Nigéria, Afrique, Afrique occidentale

    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.

  3. Library Resource
    Articles et Livres
    République-Unie de Tanzanie, Nigéria, Afrique, Afrique orientale, Afrique occidentale

    Several cassava genotypes were observed although there were few bred varieties. The wide diversity in the cassava landraces was a consequence of the action of the farmers in continuously abandoning and introducing cultivars into their system as they tried to select those cultivars that met their needs. These included extended in ground storability in remote areas, high lOOt yield, and earliness in high demographic pressure areas, low cyanogen level in specific areas where the sweet cassava type was needed, as well as their needs for pests/disease tolerance, and good processing qualities.

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