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Showing items 1 through 9 of 4.
  1. Library Resource
    Conference Papers & Reports
    December, 1995
    Mali, Africa, Western Africa

    In the Sahelian rangelands biomass production is constrained by soil moisture in the drier (100-250 mm) parts and by soil nutrients in the wetter parts. Similarly, for a given Sahelian range, nutrient deficiency would be more prominent in good than in poor rainfall years. To test this hypothesis, fertiliser trials were carried out at sites distributed along the bioclimatic gradient in the Gourma (Mali) over contrasting rainfall years between 1988 and 1992.

  2. Library Resource
    Conference Papers & Reports
    December, 1995
    Africa, Western Africa

    The integration of crops and livestock has often been cited as a model for agricultural development in semi-arid West Africa. Recent formulations treat the adoption of more intensive forms of manuring as a critical step in agricultural development. These analyses have been criticised for ignoring or underestimating the possible negative consequences of such management on rangeland and livestock productivity. This paper critically examines this debate. It is argued that the agronomic benefits of manuring depend largely on nutrient transfers from non-cropped grazing lands.

  3. Library Resource
    Conference Papers & Reports
    December, 1995
    Mali, Africa, Western Africa

    This paper deals with foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali. It discusses the location of study site, vegetation in the grazing orbit, herd management and livestock behaviour. Results on seasonal variation in feed supply, selection of the annual grazing orbit in accessible land and of the daily route in the grazing orbit, selection of herbage mass patches within landscape units and selection of species are also presented in the paper.

  4. Library Resource
    Conference Papers & Reports
    December, 1995
    Eastern Africa, South-Eastern Asia

    Animal production systems in South-East and east Asia are discussed in the context of their potential and challenges for research to address poverty alleviation, increased food production and food security and environmentally sustainable development. The projected human population increase, rising incomes and changing consumer preferences will accelerate the demand for, and access to food in the future. This will place considerable pressures on the use of natural resources (land, crops and animals).

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