Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 15.
  1. Library Resource
    Documents et rapports de conférence
    décembre, 1995
    Mali, Afrique, Afrique occidentale

    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
    Documents et rapports de conférence
    décembre, 1995
    Afrique, Afrique occidentale

    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
    Documents et rapports de conférence
    décembre, 1995

    This workshop was conducted to identify and prioritise areas of rumen ecology which are promising for their potential impact on improving nutrition status of tropical ruminants, to develop a rumen ecology research programme for ILRI based on relevance to developing countries and ILRI's comparative advantage vis-a-vis other institutions, to identify potential collaborators in advanced research institutes, and to define model(s) of collaboration.

  4. Library Resource
    Rapports et recherches
    décembre, 1995
    Colombie, Amérique centrale, Amérique du Sud

    Watershed management involves the integrated management of a multitude of resources such as crop land, pastures, forests and water to each of which a multitude of often conflicting interests relate. These interests arise from stakeholders inside as well as outside the watershed. The identification and negotiation of these interests therefore is an important element in watershed management.

  5. Library Resource
    Documents et rapports de conférence
    décembre, 1995

    Achieving sustainable increases in agricultural production in sub-Saharan Africa is both a regional and a worldwide concern. High human and animal population densities in some areas have surpassed

    land-carrying capacities causing environmental degradation and undermining the long-term stability of these production systems. In attempts to meet the increasing food demands of larger populations,

    farmers are cultivating more land permanently, grazing lands have diminished and many traditional farming practices that formerly allowed land to rejuvenate are disappearing.

  6. Library Resource
    Documents et rapports de conférence
    décembre, 1995

    This volume contains an executive summary of papers and the discussions on them as well as the reports of working groups and the recommendations of the Roundtable on Livestock Development strategies for Low Income Countries. In addition to the executive summary there is a Keynote paper and two other background papers, two papers on issues, constraints and opportunities for livestock development and five papers on options for increasing livestock's contribution from the major production systems.

  7. Library Resource
    Rapports et recherches
    décembre, 1995

    This report highlights ILCA's work in the past, and discusses current activities and future plans with particular reference to mixed crop-livestock systems, market-oriented smallholder dairying, conservation of biodiversity, biological efficiency of livestock, livestock production under trypanosomiasis risk, livestock and resource management policy, and strengthening national research capacities.

  8. Library Resource
    Documents et rapports de conférence
    décembre, 1995

    The impact of human endeavours on the environment in the struggle to eke out a living through crop and animal agriculture is examined in a holistic context. Analyses focus on all the sources of pressure that modify the vegetation cover of rural Africa, including the effects of fires and burning of biomass, fuel wood extraction and deforestation and land clearing.

  9. Library Resource
    Documents et rapports de conférence
    décembre, 1995
    Asie, Asia du sud-est

    The papers presented here by the group covering the states of the Association of South East Asian Nations (ASEAN) had detailed discussions on defining the livestock priorities, research requirements, and ways to achieve these with a focus on Indonesia, Malaysia, the Philippines and Thailand. Discussions were conducted in three sequential phases. In the first phase, each country identified the priority agro-ecological zones (AEZs) and, within each, priority production systems in which livestock research was required. The results are presented in a tabular form.

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