Articles by Author: Zander S Venter

Search results for Zander S Venter

We found 126 results for you
  1. Increasing crop diversity increased soil microbial activity, nitrogen-sourcing and crop nitrogen, but not soil microbial diversity

    Increasing crop diversity increased soil microbial activity, nitrogen-sourcing and crop nitrogen, but not soil microbial diversity

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The relationships between crop diversity, soil microbial diversity and agroecosystem functioning are not well understood. Soils under wheat monoculture, wheat–medic, and wheat–medic plus clover rotations from a 19-year-old wheat rotation trial in South Africa were measured for soil microbial functional...
  2. Evaluation of Plantation Timber Yields Using the Latest Micro-computer Facilities

    Item type: Journal Article • Journal: South African Forestry Journal
    This paper presents a broad description of a modern plantation planning system, specifically devised for operation on a micro-computer. The preliminary requirements, necessary parameters for successful creation of the working plan and successive stages in its development are described.
  3. The problems of <em>aristida junciformis</em> encroachment into the veld of natal

    The problems of <em>aristida junciformis</em> encroachment into the veld of natal

    Aristida junciformis (Ngongoni) is a pioneer grass which encroaches rapidly into mismanaged veld in much of Natal. This grass, as well as Themeda triandra (Redgrass) were examined over a 10 year period at the Agriculture. Research Institute, Cedara, Natal.
  4. A flexible system of management for sourveld in Natal

    A flexible system of management for sourveld in Natal

    The conventional systems of veld management have a number of shortcomings, the main one being that the period of absence from grazing during the growing period is normally too short. This is due to the fact that a particular group...
  5. 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...
  6. The role of <em>acacia karroo</em> in the false thornveld of the eastern cape <em>die rol van</em> acacia karroo <em>in die skyn‐doring veld van die oos‐kaap</em>

    The role of <em>acacia karroo</em> in the false thornveld of the eastern cape <em>die rol van</em> acacia karroo <em>in die skyn‐doring veld van die oos‐kaap</em>

    An investigation was undertaken to determine the relationship between tree density and grass production, tree density and overall feed production and between tree density and animal production. It was found that grass production does not decrease linearly with increasing tree...
  7. The production potential of an <em>acacia karroo</em> community utilized by cattle and goats

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    An investigation was undertaken to determine the relationship between bush density and animal production/ha as well as between bush density and profitability/ha. Boer goat farming was found to be more profitable in the short term than beef ranching. The best...
  8. Ranking of grass species according to visible wilting order and rate of recovery in the central orange free state

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A number of grasses were ranked according to the order in which they wilted with diminishing moisture availability, and according to their ability to recover after water replenishment. Digitaria eriantha and Digitaria argyrograpta were the most sensitive to moisture stress,...
  9. The influence of different land‐use practices on soil erosion, herbage production and on grass species richness and diversity

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A fence‐line contrast study compared erosion levels, herbage production and grass species diversity in Umfolozi Game Reserve (UGR) and adjacent KwaZulu (KWZ). There was no significant difference in soil loss or A‐horizon depths measured in KWZ and UGR, but there...
  10. Germination of fresh seed of thirty <em>Cenchrus ciliaris</em> ecotypes as influenced by seed treatment

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Germination tests were carried out with fresh seed of 30 ecotypes of Cenchrus ciliaris produced under uniform conditions. Untreated seeds were compared with washed and shelled seeds. The percentage germination of untreated seed varied between 0% and 48%, with an...