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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 30.
  1. Library Resource
    Constitutición
    Diciembre, 1993
    Lesotho

    The constitution was drafted by a National Constituent Assembly and commenced by an Order of the Military Council.

  2. Library Resource
    Informes e investigaciones
    Diciembre, 1993
    Etiopía, África, África oriental

    In 1986, ILCA carried out informal surveys at Dogollo and Inewari in order to understand the farming systems. Such surveys were also conducted by the Institute of Agricultural Research (IAR) at Ginchi in 1986 and by the Alemaya University of Agriculture at Ada/Debre Zeit in 1988/89. This was followed by one-time detailed formal farm surveys at Dogollo, Inewari and Ginchi in 1988/89. This chapter mostly presents the results of these formal surveys.

  3. Library Resource
    Informes e investigaciones
    Diciembre, 1993
    Etiopía, África, África oriental

    This chapter describes the distribution, use and importance of Vertisols in Ethiopia and indicates the study sites of the Joint Vertisol Project. Land and soil features are examined with particular reference to parent materials and landscape features, soil characterisation (colour, texture and depth-to-root-restricting layer). Distribution of Vertisols along the 12 physiographic regions of Ethiopia is described, the major agro-ecological zones of Ethiopia is listed, and distribution of Vertisols and their associations in Ethiopia is shown.

  4. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1993
    Etiopía, África, África oriental

    Using a linear programming model based on data from smallholdings in the Ethiopian highlands, this paper evaluates the farm level economic efficiency of cow traction and the traditional oxen-pair. Cow traction farm technology has the potential for increasing the net income of farmers at the existing levels of farmers' resources.

  5. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1993
    África, África oriental, África austral

    The workshop papers deal with trends in smallholder livestock enterprises, research on smallholder dairy research programmes in subhumid areas, disease control approaches and production systems.

  6. Library Resource
    Informes e investigaciones
    Diciembre, 1993
    Etiopía, África, África oriental

    Some of the papers in this report deals with nutrient management; land, soil and water management; grain, fodder and residue management; and technology validation and transfer. The other papers looks into development of coordinated research efforts; distribution and importance of Ethiopian vertisols and locations of study sites; a survey of the farming systems of Vertisol areas of the Ethiopian highlands, and modifying the management of vertisols. The report ends with a discussion on retrospect and prospects of the Joint Project on Vertisols management.

  7. Library Resource
    Informes e investigaciones
    Diciembre, 1993
    Etiopía, África, África oriental

    This chapter reviews relevant Vertisol properties, experimental results and the overall experience of the project on this subject. There are several types of drainage problems in Vertisols whose magnitude may vary from site to site. Drainage improvement is discussed in relation with camber beds, broadbeds and furrows, field depressions, perched watertable, open ditches, height of beds, soil erosion and supplemental irrigation. The need for water shed development projects is also examined.

  8. Library Resource
    Informes e investigaciones
    Diciembre, 1993
    Etiopía, África, África oriental

    Vertisols and soils with vertic properties are an important soil group in the Ethiopian highlands. Poor drainage, soil, water and nutrient erosion are the most serious problems on highland Vertisols. Due to their high moisture- storage capacity, they have high production potential and this potential remains underutilised because of the difficulty of managing these soils. This paper summarises available information on chemical properties, N, P and mineralogy.

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