Articles by Author: Johann Strauss

Search results for Johann Strauss

We found 58 results for you
  1. Effect of varying degrees of plant residue cover from different crops on annual medic pasture re-establishment and production

    Effect of varying degrees of plant residue cover from different crops on annual medic pasture re-establishment and production

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Annual medics can play an important role as a pasture crop in short-rotation pasture-cropping systems in the Overberg district of South Africa. Permanent soil cover, an important aspect of conservation agriculture, and different crops in rotation may be, amongst other...
  2. 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...
  3. Considering soil quality when comparing disc and tine seed-drill openers for establishing wheat

    Considering soil quality when comparing disc and tine seed-drill openers for establishing wheat

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Wheat (Triticum aestivum) is planted widely in the Western Cape of South Africa in conservation agriculture systems. Although most producers rely on tine openers to establish wheat, the interest in planters with disc openers is increasing. Given that the soils...
  4. Die ontginning van Noord-Transvaal se Houtbronne in die Negentiende Eeu en Vroeë Bewaringsmaatreëls

    Item type: Journal Article • Journal: South African Forestry Journal
    The exploitation by Europeans of the indigenous tree of the Northern Transvaal date back to the settlement of Schoemansdal in 1848. The main areas for wood cutting operations were the Soutpansberg mountain range, Woodbush, Soekmekaar and regions in the Lowveld.
  5. A comparison of two methods of inducing water stress in wheat (<em>Triticum aestivum</em> L.)

    A comparison of two methods of inducing water stress in wheat (<em>Triticum aestivum</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The aim of this study was to compare the withholding of water and the use of polyethylene glycol (PEG) as methods of inducing water stress in spring wheat cultivars (Triticum aestivum L.) grown in the Western Cape. Water stress was...
  6. The use of physiological parameters to identify drought tolerance in spring wheat cultivars

    The use of physiological parameters to identify drought tolerance in spring wheat cultivars

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Wheat crops produced under dryland conditions in the winter rainfall region of South Africa often experience periods of water stress. It is, therefore, important to identify spring wheat cultivars that can withstand these conditions. The multitude of factors potentially involved...
  7. ASPEKTE VAN 'N ADVERBIALE PROBLEMATIEK

    Item type: Journal Article • Journal: Taalfasette
  8. Open-top chamber facility to study air pollution impacts in South Africa. Part II: SO<sub>2</sub>–drought interactions on yield, photosynthesis and symbiotic nitrogen fixation in soybean

    Open-top chamber facility to study air pollution impacts in South Africa. Part II: SO<sub>2</sub>–drought interactions on yield, photosynthesis and symbiotic nitrogen fixation in soybean

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    South Africa has an extremely energy-intensive economy, resulting in substantial air pollution through its coal-fired power stations. Modelled sulphur dioxide (SO2) concentrations on the central Highveld mostly range between 10 and 50 ppb, exceeding 50 ppb in source areas. Well-watered...
  9. Democracy and equity: the idea of the just state (<em>Rechtsstaat</em>) before and after 1994

    Democracy and equity: the idea of the just state (<em>Rechtsstaat</em>) before and after 1994

    Item type: Journal Article • Journal: South African Journal of Philosophy
    The recent publication of a special number of the SAJP dedicated to a discussion of Samantha Vice’s thoughts on being a white South African prompted this reflection on justice, equity and the modern idea of the state – against the...
  10. Understanding the <em>Linguistic Turn</em> and the <em>Quest for Meaning</em>: Historical Perspectives and Systematic Considerations

    Understanding the <em>Linguistic Turn</em> and the <em>Quest for Meaning</em>: Historical Perspectives and Systematic Considerations

    Item type: Journal Article • Journal: South African Journal of Philosophy
    Although the linguistic turn is usually described in historical terms this article aims at combing the significant historical transitions with systematic philosophical considerations. Against the background of earlier rationalistic and empiricist trends particular attention is given to the successive epistemic...