Articles by Author: Justin Co Du Toit

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  1. Growth and tiller production of <em>Themeda triandra</em> as affected by NPK fertilisation

    Growth and tiller production of <em>Themeda triandra</em> as affected by NPK fertilisation

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Themeda triandra Forssk. is a common perennial grass in southern African grasslands that tolerates low nutrient soils. Establishment of the species into degraded or transformed areas is difficult, but there have been some advances with clonal propagation using tillers. To...
  2. Fire effects on vegetation in a grassy dwarf shrubland at a site in the eastern Karoo, South Africa

    Fire effects on vegetation in a grassy dwarf shrubland at a site in the eastern Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Fire is rare in semi-arid eastern Karoo dwarf shrublands, South Africa, and responses to fire are largely unknown. Recent increased grassiness, and hence fuel loads, at Grootfontein in the Eastern Cape allowed an accidental fire (24.3 ha) to carry, and...
  3. Long-term livestock grazing increases the recruitment success of epigeal termites: insights from a &gt;75-year grazing experiment in the Karoo, South Africa

    Long-term livestock grazing increases the recruitment success of epigeal termites: insights from a &gt;75-year grazing experiment in the Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Epigeal termites alter ecosystem-level processes through foraging and mound building. These effects are proportional to density. Whilst much is known about the factors influencing mound density in natural settings, how termites respond to livestock grazing has been overlooked. We compared...
  4. A preliminary report on the effect of <em>acacia karroo</em> competition on the composition and yield of sweet grassveld

    A preliminary report on the effect of <em>acacia karroo</em> competition on the composition and yield of sweet grassveld

    In a large‐scale experiment a dense stand of A. karroo was effectively killed by a basal bark application of 2,4,5—T at a concentration of 1.5 per cent acid equivalent in paraffin. There was no correlation between density of Acacia and...
  5. The goat in a bush‐grass community

    The goat in a bush‐grass community

    An investigation was conducted to determine whether goats could control bush regrowth and re‐infestation after initial bush clearing. A dense stand of A. karroo was chopped and the regrowth subsequently grazed either rotationally or continuously by sheep or goats. Regular...