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Mostrando ítems 1 a 9 de 33.
  1. Library Resource
    Informes e investigaciones
    Diciembre, 1988
  2. Library Resource
    Informes e investigaciones
    Diciembre, 1988
    Malí, África, África occidental
  3. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1988

    A regional workshop was held in Ethiopia (Eastern Africa) to assess the status, future needs, and methodological issues of soil fertility research for bean cropping systems on the continent. Traditional forms of soil fertility maintenance, diagnosis of soil fertility constraints, nutrient requirements, use of fertilizers, cropping systems and soil fertility, and soil organic matter and the use of green manures and mulching were addressed.

  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 1988
    Malí, África, África occidental

    Evaluates relationship between NDVI (nomalized difference vegetation index) and above-ground biomass, between maximum NDVI and end-of-growing season biomass; and between the integral of the NDVI curve or NDVI increments overtime and actual biomass. Describes atmospheric interference and technical problems affecting the special vegetation index.

  5. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1988
    Tanzania, Zambia, Malawi, África subsahariana, África

    Several traditional methods of maintaining soil fertility in bean-based cropping systems are reviewed as follows: visoso, large- scale chitemene, ngoro or matengo pit (Mbinga District, Tanzania), mambwe land-use system of northern Zambia (fundikila), mounds of the Wafipas (SW Tanzania), tumba land-use system (southern Tanzania), guie (central highlands of Ethiopia), mafuku in Zaire, termite mounds, agroforestry, relay intercropping systems, coffee- banana-bean cropping system of the Wahayas of Bukoba (Tanzania), removal of maize tassels (northern Malawi), and storage of nutrients in weeds (

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 1988
    Etiopía, África, África oriental

    Analyses the frequency and causes of deaths observed during 1982-86 in sheep flocks around Debre Berhan, Ethiopia. Includes data on annual crude death rates, causes of mortality, frequency, age at death, and seasonal crude death rates.

  7. Library Resource
    Recursos y herramientas de capacitación
    Diciembre, 1988
    Etiopía, África, África oriental

    This manual is intended as a teaching aid for extension level technicians. Deals with rural milk processing at individual smallholder or small producers cooperatives levels using experiences from Ethiopia. Concentrates on traditional products, i.e, product that are easily made, need little specialised equipment and easily adapted to the rural processing plant.

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