Articles by Author: Adi Barnard

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  1. Die ontplooiing van die veekundepotensiaal van die droe gras‐ bosgemeenskappe in die oos‐kaap

    Die ontplooiing van die veekundepotensiaal van die droe gras‐ bosgemeenskappe in die oos‐kaap

    Die droë gras‐ bosgemeenskappe van die Oos‐Kaap is omvangryke voerbronne en die ontpiooiing van die veekunde potensiaal word bespreek. Twee duidelik onderskeidende voerbronne is aanwesig wat die inskakeling van struik‐ sowel as grasbenutters in ‘n veeproduksiestelsel vereis. Riglyne vir die...
  2. Influence of sowing depth on the germination of Karoo shrubs and grasses

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Knowledge of the germination behaviour of desirable plants to be sown in the veld for veld improvement is still inadequate. To gain this knowledge, seed of different species of Karoo bushes and grasses were planted on two soil types at...
  3. Vleisbees‐ en boerbokprestasies in die droë gras‐bosgemeenskappe van die oos‐kaap

    Vleisbees‐ en boerbokprestasies in die droë gras‐bosgemeenskappe van die oos‐kaap

    Die droë gras‐bosgemeenskappe van die Oos‐Kaap is ‘n omvangryke voerbron. Die prestasies van vleisbeeste en boerbokke binne hierdie gemeenskappe word bespreek. Die Boerbok is met sy hoë aanteel‐en groejvermoe ongeewenaard as rooivleisproduseerder in vergelyking met ander klein‐of grootveerasse. Die Boerbok...
  4. Short term effects of defoliation on herbage yield at three veld condition sites in the false thornveld of the eastern province

    Short term effects of defoliation on herbage yield at three veld condition sites in the false thornveld of the eastern province

    All combinations of three frequencies and three intensities of defoliation were applied at three veld condition sites in the False Thornveld of the Eastern Province during a single growing season. Treatment effects were recorded during the season of application, and...
  5. Herbaceous species preference by cattle in the false thornveld of the Eastern Cape

    Herbaceous species preference by cattle in the false thornveld of the Eastern Cape

    Herbaceous species preference by cattle was studied at two sites of different botanical composition in the False Thornveld of the Eastern Cape. Of the grasses under observation, Themeda triandra was the most preferred species. Animals continued to graze selectively even...
  6. Forage production of some grass species in the false Thornveld of the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The most commonly occurring grass species in the False Thornveld (Acocks, 1953; veld type no. 21) were clipped before and after grazing on veld in good and poor condition at different times of the year. Herbage yield per species was...
  7. The influence of an <em>Acacia karroo</em> tree on grass production in its vicinity

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The investigation was concerned with the impact of an Acacia karroo tree on the productivity of the surrounding herbaceous layer.
  8. Evaluation of shrub species for sheep grazing in the Strandveld of the Cape West Coast of South Africa

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The production of three exotic shrub species, Atriplex nummularia (old man saltbush), A. canescens (four‐winged salt‐bush) and Medicago arborea (tree lucerne) and one indigenous evergreen shrub, Chrysanthemoides monilifera subsp. pisifera (west coast bitou), was evaluated in the Strandveld of the...
  9. Groei en chemiese samestelling van verskillende peulgewasse onder suurgrondtoestande

    Groei en chemiese samestelling van verskillende peulgewasse onder suurgrondtoestande

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die groei van verskillende peulplantspesies is op twee suur bogronde by 'n baie lae vlak van Ca-voorsiening, as hidroksied en sulfaat, in 'n glashuis ondersoek. Die hidroksiedbehandelings, wat met 'n mate van pH-styging gepaard gegaan het, het die beste resultate...