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Mostrando ítems 1 a 9 de 117.
  1. Library Resource
    Informes e investigaciones
    Diciembre, 2017
    Kenya, Nigeria, Uganda, Burundi, Madagascar, Zimbabwe, Tanzania, Sudán, Ghana, Etiopía, Malawi, África subsahariana, África, África oriental

    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
    Informes e investigaciones
    Diciembre, 2017
    Kenya, África oriental, África

    The International Center for Tropical Agriculture (CIAT), in collaboration with our national research partners, has been working in Africa for the last 30 years. Our cutting-edge science helps policy makers, private sector, scientists, civil society, and farmers respond to the most pressing challenges of our time.

  3. Library Resource
    Informes e investigaciones
    Octubre, 2018
    Kenya, África oriental, África

    Send a Cow (SAC) is a nongovernmental organization (NGO) that has been working in Kenya since 1996. It focuses on groups of smallholder farmers, providing them with training in sustainable agriculture and improved animal management. SAC is mostly active in western Kenya, one of the country's most populated and poorest region. The population density for this region ranges from 337 to 1,300 inhabitants per km² with an average density of 590 people per km2 (Kenya Ministry of Agriculture and Rural Development, 2001; KNBS, 2010).

  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 1985
    Colombia, América central, América del Sur

    The factors influencing the size and shape of exptl. field plots (area of exptl. lot, soil types, trial objective, no. of replicates, and degree of accuracy and homogeneity of the exptl. material) for the execution of field expt. are discussed. The basic principles of the following different methods to determine plot size are described: max. curve method, method of Koch and Rigney, Hatheway's method, and the max. curve method using the multiple linear regression model. Some considerations are presented on the border effect and on plot size in bush and climbing bean trials.

  5. Library Resource
    Artículos de revistas y libros
    Diciembre, 1998
    Indonesia, Asia, Asia sudoriental

    Soil degradation, both due to soil erosion and nutrient removal, is a major problem in cassava fields. Most of the existing management technologies that have been developed have had little success in adoption. Some of the reasons are that the technology developed is technically oriented, based on experiment station research with very little farmer involvement.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 1998

    Farmer Participatory Research (FPR) in Vietnam has been carried out since 1994 in collaboration with CIAT, with the objective of improving the adoption of soil conservation practices in cassava fields. Two villages in Pho Yen district, Bac Thai province; one in Thanh Hoa district, Vinh Phu province; and one in Luong Son district of Hoa Binh province were selected as pilot sites for implementing the FPR methodology.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 1979
    Colombia, América central, América del Sur

    Some cultural control measures of weeds in cassava are discussed: quality of the material, planting system and density, density x plant type interaction and use of mulching. In order to study the interaction plant type x planting density, var. M Mex 59 (vigorous) and M Col 22 (nonvigorous) were planted in plots of 7500 and 15,000 plants/ha; and 3 levels of weed control were established: complete, intermediate and no control. The vigorous var.

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