Articles by Keyword: Annual Yield

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  1. Effects of sowing rate on growth and protein contents of wall barley (<em>Hordeum murinum</em> L.) grown under Mediterranean conditions

    Effects of sowing rate on growth and protein contents of wall barley (<em>Hordeum murinum</em> L.) grown under Mediterranean conditions

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Accurate control of the seeding rate favours the establishment of a high-quality stand. Improper seeding rates waste seed and reduce potential yield. Our objective for this research is to determine the proper sowing rate for wall barley (Hordeum murinum L.)...
  2. The influence of sowing rate on the production and growth of wild oat (<em>Avena fatua</em>) in the depleted semi-arid rangelands of Jordan

    The influence of sowing rate on the production and growth of wild oat (<em>Avena fatua</em>) in the depleted semi-arid rangelands of Jordan

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The objective of this work was to determine the proper sowing rate of wild oat (Avena fatua) in the depleted north-eastern semi-arid grasslands of Jordan. Wild oat seeding rates of 15, 30, 45 and 60 kg ha−l were evaluated in...
  3. Kikuyu over-sown with ryegrass and clover: dry matter production, botanical composition and nutritional value

    Kikuyu over-sown with ryegrass and clover: dry matter production, botanical composition and nutritional value

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The seasonality of growth and low nutritional value of kikuyu (Pennisetum clandestinum) pasture restrict milk production. The aim of the study was to determine the dry matter yield, botanical composition and nutritional value of irrigated kikuyu over-sown with annual ryegrass...
  4. When plenty is not enough: an assessment of the white stumpnose (<em>Rhabdosargus globiceps</em>) fishery of Saldanha Bay, South Africa

    When plenty is not enough: an assessment of the white stumpnose (<em>Rhabdosargus globiceps</em>) fishery of Saldanha Bay, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    White stumpnose Rhabdosargus globiceps is the main target of the linefishery in Saldanha Bay. Increased fishing pressure over the last three decades, particularly by the recreational sector, has led to concerns regarding sustainability of the local white stumpnose stock. The...
  5. Impact of Wood Quality Assessments on Future Fibre Resources in the Pulp and Paper-making Industry

    Item type: Journal Article • Journal: South African Forestry Journal
    Recent evidence from research in Europe has indicated that individual trees can be sampled for their pulping properties by the removal of small quantities (5–50 g) of wood at about breast height (1,3 m above ground). Work began at Sappi's...
  6. Modelling Diameter and Height Distributions through Dispersion Statistics in Even-aged Pine Plantations

    Item type: Journal Article • Journal: South African Forestry Journal
    Diameter and height distribution recovery, in combination with standlevel projection modelling, is generally used in Southern Africa for predicting growth and yield in even-aged pine plantations. A different approach for modelling diameter and height distributions for five pine species commercially...
  7. The performance of tropical pastures in the drier phase of the Highland sourveld of Natal

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Several tropical grasses (Acroceras macrum, Cenchrus ciliaris, Cyndon sp., Digitaria sp. and Pennisetum clandestinum) and legumes (Desmodium uncinatum and Lotononis bainesii) were evaluated at the Kokstad Research Station (Bioclimatic sub‐region 4f of Natal) over a period of seven years. The...
  8. Long term nitrogen and phosphorus application to veld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The long term effects of a 5N x 3P factorial fertilizer application trial on hay yields, botanical composition and soil properties of veld are presented. Significant increases in hay yields were recorded during most years. There was a strong correlation...
  9. Growth patterns of Italian ryegrass cultivars established in different seasons

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A comparison is made between various Italian ryegrass cultivars established under irrigation on a well‐drained upland site during the traditional autumn months, with plantings of the same cultivars at other times of the year.
  10. 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...