Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 20.
  1. Library Resource
    Articles et Livres
    décembre, 1999
    Panama

    An aggressive research and validation program launched in 1984 in Azuero, Panama, yielded a recommendation advocating zero tillage for maize production. Ten years later, maize farmers in Azuero use , land preparation methods: conventional tillage, zero tillage, and minimum tillage (an adaptation of the zero tillage technology). This study aimed to quantify the adoption of a zero and minimum tillage for maize in Azuero; identify factors influencing adoption of the different land preparation practices; and analyze the implications of the findings for future maize research and extension.

  2. Library Resource
    Articles et Livres
    décembre, 1999
    Mexique, Amérique centrale

    This paper reviews trends in maize production and consumption in Central America and Mexico in the context of the political and economic changes taking place in the region since the 1970's. The authors focus on the effects of the structural adjustment programs in the 1980's and 1990's. The analysis begins by reviewing the economic context in which maize production occurs in the region and the main economic policy instruments affecting the maize economy.

  3. Library Resource
    Articles et Livres
    décembre, 1999
    Guatemala

    This report is based on a study of the adoption and use of improved open-pollinated varieties and hybrids by small-scale farmers in the Department of Jutiapa, Guatemala. The majority of maize producers in Guatemala are small-scale subsistence farmers. Approximately 60% of the basic grains produced in the country are grown on farmers that are too small to satisfy the basic nutritional needs of a typical family (5-6 persons). Increasing yields through the use of new technologies is seen as a critical step to ensuring adequate nutrition and increasing farmer income in the area.

  4. Library Resource
    Articles et Livres
    décembre, 1982
    Mexique

    This report exemplifies the short, well-focuses formal survey emphasized in CIMMYT's on-farm research procedures. The survey was done in northern Veracruz, Mexico, where CIMMYT Maize Production Training carries out on-farm experiments. The report summarizes farmers' circumstances, describes management practices in maize, and draws conclusions for research opportunities.

  5. Library Resource
    Articles et Livres
    décembre, 2001
    Mexique

    This study analyzes the potential of conservation tillage (CT) for improving maize productivity under a range of soil and rainfall conditions in a semiarid zone of West-Central Mexico, evaluating the consequences of tillage practices on the crop's ability to take up and store water, on evapotranspiration, on crop physiology, and on grain yield, under cropping systems typical of small-scale farmers.

  6. Library Resource
    Articles et Livres
    décembre, 1998
    République-Unie de Tanzanie

    This study of the adoption of maize production technologies in Eastern Tanzania forms part of a larger study to evaluate the impact of maize research and extension throughout Tanzania over the past 20 years. Using a structured questionnaire, researchers and extension officers interviewed farmers in June-November 1995. Survey data were classified by agroecological zone (the lowlands and the intermediate zone).

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