Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 88.
  1. Library Resource
    Documents et rapports de conférence
    décembre, 1972
    Colombie, Amérique centrale, Amérique du Sud

    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.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2016
    Guatemala

    One of the main technical knowledge gaps for sustainable timber production in tropical forests is the lack of reliable information on tree growth, which is indispensable for defining cutting cycles and estimating harvest volumes. We applied dendroecological methods to measure and model the diameter growth (dbh) of mahogany Swietenia macrophylla and cedar Cedrela odorata in humid tropical forests of community-managed concessions in the Maya Biosphere Reserve, Petén, Guatemala. The width of growth rings was determined in increment cores from 32 trees of S. macrophylla and 27 of C.

  3. Library Resource
    Documents et rapports de conférence
    décembre, 1991
    Amérique centrale, Amérique du Sud, Caraïbes

    This paper reviews the literature on the participation of women and children in agricultural activities in Latin America and the Caribbean. The review focuses on participation through labor in agriculture overall and in certain agricultural activities in particular. Also reviewed are the rural family`s access to and capacity for decision-making on resources. Factors influencing such participation are analyzed, such as farm size, land ownership, income levels, racial origin, and destiny of production.

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