Résultats de la recherche | Land Portal
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  2. International Center for Tropical Agriculture
  3. Résultats de la recherche
Résultats de la recherche

Résultats de la recherche

Showing items 1 through 9 of 735.
  3. Library Resource

    CIAT in Africa Roadmap 2017-2020: Four themes for impact

    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
    utilisation des terres
    agriculteur
    agriculture
    développement durable
  5. Library Resource

    Desordenes nutricionales

    Articles et Livres
    décembre, 1980
    Venezuela, Brésil, Amérique centrale, Amérique du Sud
    utilisation des terres

    Different nutritional deficiencies or toxicities may limit bean development and yield. N and P deficiencies are the most frequent, although deficiency of minor elements and Al/Mn toxicity can reduce yields considerably. Nutritional problems are usually diagnosed by soil and plant tissue analyses and the observation of symptoms produced by nutritional disorders. Optimum pH for bean production varies between 6.5-7.5; within these limits, the majority of the plant nutrients have their max availability. Color illustrations are given of the symptoms of plant deficiencies and toxicities.

  7. Library Resource

    Know what drives the adoption of climate-smart agriculture across different scales

    Documents de politique et mémoires
    octobre, 2017
    République-Unie de Tanzanie, Ouganda, Afrique, Afrique orientale
    terre
    agriculteur

    Recognizing successful climate-smart agricultural (CSA) practices is not enough for them to be adopted at scale.

    At many sites, government or development-led interventions to promote CSA practices face low adoption rates or are not adopted at all.

    Data shows that CSA adoption depends on drivers and constraints beyond the CSA practices. Blanket adoption of a specific intervention should never be assumed: the adoption of CSA practices is usually patchy because of many conditions.

  8. Library Resource

    Metodologia del diagnostico de la produccion de frijol

    Articles et Livres
    décembre, 1985
    Colombie, Amérique centrale, Amérique du Sud
    développement
    utilisation des terres

    The objectives of the diagnosis of bean production are to (1) contribute criteria for the design and completion of on-farm trials of the new bean technology and (2) to take information to research centers that helps define bean research priorities. A summary is presented of the methodology suggested and practiced in national and international courses on on-farm research carried out by CIAT's bean program.

  10. Library Resource

    Yields and acceptability of opaque-2 maize in the tropics of Colombia

    Documents et rapports de conférence
    décembre, 1972
    Colombie, Amérique centrale, Amérique du Sud
    utilisation des terres

    Yield trials with farmers and acceptance surveys were conducted in Colombia in 1969-1970 to assess the potential use of opaque-2 maize in the tropical regons of the country. Yields were variable, particularly from one farm to another. In spite of this variability which may have confused the results, and analysis of variance was applied, using farms as replications.

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