Articles by Keyword: Grassland Productivity

Search results for Grassland Productivity

We found 82 results for you
  1. Optimal grazing management strategies: evaluating key concepts

    Optimal grazing management strategies: evaluating key concepts

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Rangeland management strategies must be based on robust ecological and economic concepts if they are to be effective and profitable. Thus, the aim of this paper was to examine concepts related to grazing and resting of grassland and associated effects...
  2. Site Indicator Species for Predicting Productivity of Pine Plantations in the Southern Cape

    Item type: Journal Article • Journal: South African Forestry Journal
    A means of predicting site potential for pine species in the Southern Cape based on 10 vegetation associations is presented.
  3. Production and quality norms of certain grass species for fodder flow planning: Pretoria area

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Four subtropical (Cenchrus. Digitaria, Anthephora and Sorghum) and two temperate grass species (Festuca. Agrotricum) were grown in a replicated field experiment at three levels of N application, with adequate P and K. Species were mown at 4‐, 6‐ and 8‐weekly...
  4. Die wiskundige simulering van koolhidraattranslokasie in natuurlike grasveld<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Die groeifunksies benodig vir die simulasie van produksie van ‘n Themeda triandra‐grasveld met behulp van die PUTU 11 simulasiemodel is ontwikkel. Vir die ontwikkeling van die model is die veldproduksiedata van die 1980/81 groeiseisoen gebruik waarna dit suksesvol, vir drie...
  5. A preliminary account of growth characteristics and seed germination of <em>Cassia mimosoides</em> L. in Dohne Sourveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    An autecological study of Cassia mimosoides L., which invades mismanaged Dohne Sourveld, was initiated at the Agricultural Research Institute, Dohne. A study of the growth characteristics revealed that the nature of the root distribution enabled the plant to take up...
  6. A model for the evaluation of different production strategies for animal production from rangeland in developing areas: An overview

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    An interactive user‐friendly computer package is being developed to assist planners and managers with the evaluation of different livestock production strategies in semi‐arid regions. It comprises a hierarchy of simulation models that predict over time the effects of past and...
  7. The Potch System: An approach to the management of semi‐arid grasslands in southern Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A host of grassland management systems have been published and recommended. Whereas earlier approaches to grassland management emphasized the systematic resting aspect, the systems published since 1966 have tended to stress the degree of utilization of the grassland sward. In...
  8. Preferential utilization of pans by springbok <em>(Antidorcas marsupialis)</em>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Forage utilization by springbok in pans and surrounding habitats was compared at one karroid shrubland site and two desert grassland sites and was found to be greater in pans than on adjacent plains and dunes. Springbok used pan areas for...
  9. Effect of nitrogen supply on the production and distribution of dry matter in sugarcane

    Effect of nitrogen supply on the production and distribution of dry matter in sugarcane

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Sugarcane productivity is probably limited by characteristically slow early growth and, later, by progressively decreasing leaf nitrogen (N) concentration. Increasing the N supply might increase productivity by influencing these attributes. In a pot experiment on two cultivars N was supplied...
  10. Predicting the effects of nitrogen and planting density on maize water use in semi-arid Kenya

    Predicting the effects of nitrogen and planting density on maize water use in semi-arid Kenya

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Models are important tools to assess the scope of management effects on crop productivity under different climatic and soil regimes. Accordingly, this study developed and used a simple model to assess the effects of nitrogen fertiliser and planting density on...