Articles by Keyword: Biomass

Search results for Biomass

We found 120 results for you
  1. Productivity of <em>Eucalyptus regnans</em> Forest Regenerating after Bushfire

    Item type: Journal Article • Journal: South African Forestry Journal
    A natural forest of mountain ash was clearfelled in 1983 and burned by bushfire immediately after logging. The resulting natural regeneration has high productivity, with a mean volume increment close to 50 m3/ha per year, mean rate of biomass accumulation...
  2. The Impact of Weeds and Two Legume Crops on <em>Eucalyptus</em> Hybrid Clone Establishment

    Item type: Journal Article • Journal: South African Forestry Journal
    The relative competition imposed on Eucalyptus hybrid clone GC304 grown from establishment with either complete weed cover, intra-row weeds, inter-row weeds or legume cover crops of Mucuna pruriens and Vigna sinensis is under study in a field experiment on a...
  3. Evaluation of the grazing potential of grass species in <em>Tarchonanthus</em> veld of the northern cape<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The grazing value of the seven most prominent grass species in Tarchonanthus‐limeveld was investigated from 1977 to 1981.
  4. 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...
  5. A comparison of four different standards of reference for the animal unit for Determining stocking rate

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    No single standard of reference for the animal unit (AU) for determining stocking rates has materialized. Often, therefore, it is not clear which standard of reference for the AU or which method of determining stocking rate has been used in...
  6. Seasonal changes in above‐ground standing crop in three coastal grassland communities in Transkei<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Above‐ground standing crop (ASC) dynamics were followed over a two‐year period in three coastal grassland communities. The mass of biomass, necromass and litter components was determined monthly from hand‐clipped samples and compared under three management treatments — grazing, burning and...
  7. Defoliation effects on resource allocation in Arizona cottontop (<em>Digitaria californica</em>) and Lehmann lovegrass (<em>Eragrostis lehmanniana</em>)

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Arizona cottontop (Digitaria californica), a bunchgrass native to the Chihuahuan and Sonoran Deserts in North America, and Lehmann lovegrass (Eragrostis lehmanniana), a bunchgrass introduced to the southwestern USA from southern Africa, were defoliated and examined for above‐ and below‐ground productivity,...
  8. Implikasies van die oesindeks by navorsing verbouing van mielies

    Implikasies van die oesindeks by navorsing verbouing van mielies

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die oesindeks van mielies is bepaal in vier veldproewe. Verskille tussen mieliekultivars het voorgekom. Kultivars wat hoë graanopbrengste gelewer het in 'n kultivarproef, het ook deurgaans hoë oesindekswaardes gehad. In 'n langtermyn- bemestingsproef het behandelings wat kalium ontvang het, hoër...
  9. Maize response to plant population and soil water supply: I. Yield of grain and total above-ground biomass

    Maize response to plant population and soil water supply: I. Yield of grain and total above-ground biomass

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of the level of water deficit on the yield of grain and total above-ground biomass of maize planted at greatly differing densities was investigated in a strictly controlled field experiment, repeated for four seasons. Differences in water supply...
  10. Die invloed van grondbewerking op vroeë wortelontwikkeling en biomassa van koringkultivars (<em>Triticum aestivum</em> L.)

    Die invloed van grondbewerking op vroeë wortelontwikkeling en biomassa van koringkultivars (<em>Triticum aestivum</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Dit is bekend dat 'n goeie wortellengte en/of worteldigtheid in die eerste paar weke belangrik is om goeie saailingvestiging te verkry. Die doel van hierdie studie was om die uitwerking van minimumbewerking (wisselgangskotteleg en vlerkskaar), beitelploeg- en konvensionele bewerking op...