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Showing items 1 through 9 of 27.
  1. Library Resource
    Conference Papers & Reports
    August, 2017
    Peru, South America

    La maca (Lepidium meyenii) es una raíz andina a la cual se le atribuyen propiedades energéticas y estimulantes. En los últimos años el interés de mercados asiáticos dio lugar al “boom de la maca”, incrementando los precios y provocando la rápida conversión de pastizales altoandinos en tierras de cultivo, transformando de esta manera el paisaje, el ecosistema, la economía y la sociedad rural de la zona altoandina de Junín.

  2. Library Resource
    Conference Papers & Reports
    December, 2012
    South Africa, Africa, Southern Africa

    Increasing temperatures and declining rainfall patterns as well as increasing frequency of extreme climate events such as droughts and floods are the expected future weather patterns within the tropics. Africa, particularly Southern Africa, is projected to be the region most vulnerable to the impacts of climate variability and change especially in agriculture and water. This has dire consequences as most people in Southern Africa depend on agriculture for their livelihoods.

  3. Library Resource
    Conference Papers & Reports
    December, 2010

    The precise estimation of surface runoff from rainfall is critical for water resource management. In the recent past, remote sensing and Geographic Information System (GIS) technologies have been widely used in the estimation of surface runoff from watersheds, and from agricultural fields in particular. This is due to the inherent ability of remote sensing to capture spatial heterogeneity of surface parameters such as land use and land cover. This could lead to better performances of surface runoff simulation models.

  4. Library Resource
    Conference Papers & Reports
    August, 2003
    Kenya, Africa, Eastern Africa

    Although soil fertility is recognized as a primary constraint to agricultural production in developing countries, use of fertilizer in Sub-Saharan Africa is declining. Smallholder farmers still rely heavily on livestock manure for soil fertility management. To explore the determinants of soil fertility management practices, including both the use of cattle manure and inorganic fertilizer, data are used from a sample of 3,330 geo-referenced farm households across Central and Western Kenya. A bivariate probit model is applied to jointly examine the use of the two technologies.

  5. Library Resource
    Conference Papers & Reports
    August, 2003
    Kenya, Eastern Africa

    Although soil fertility is recognized as a primary constraint to agricultural production in developing countries, use of fertilizer in Sub-Saharan Africa is declining. Smallholder farmers still rely heavily on livestock manure for soil fertility management. To explore the determinants of soil fertility management practices, including both the use of cattle manure and inorganic fertilizer, data are used from a sample of 3,330 geo-referenced farm households across Central and Western Kenya. A bivariate probit model is applied to jointly examine the use of the two technologies.

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