Articles by Keyword: Production Potential

Search results for Production Potential

We found 213 results for you
  1. Die produksie van smutsvingergras in die wes‐transvaal<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Die produksie van Smutsvingergras (Digitaria eriantha) is in yerskeie proewe in die Hoëveldstreek, op Potchefstroom, in die verlede bepaal. Hierdie proewe is oor ‘n lang periode op verskillende grondsoorte en met verskillende bemestingspeile uitge‐voer. Alle resultate is saamgevoeg en met...
  2. Initial growth potential and biomass production of field established guayule <em>(Parthenium argentatum</em> Gray.) cultivars

    Initial growth potential and biomass production of field established guayule <em>(Parthenium argentatum</em> Gray.) cultivars

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The initial growth potential and biomass production of four guayule cultivars under dryland conditions were investigated at different localities in South Africa. Growth (plant survival, height, canopy diameter, stem diameter) and biomass (wet and dry mass) were recorded for (1)...
  3. Evaluating the maize production potential of a semi-arid ecotope with four production techniques

    Evaluating the maize production potential of a semi-arid ecotope with four production techniques

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Water conservation production techniques are needed to boost crop production in semi-arid areas. The in-field rainwater harvesting (IRWH) technique has been developed for this purpose, and found to be successful on clay and duplex soils, but has not yet been...
  4. The effect of fertiliser N rates on growth of perennial ryegrass (<em>Lolium perenne</em>) and white clover (<em>Trifolium repens</em>) grown at high soil water levels under controlled conditions

    The effect of fertiliser N rates on growth of perennial ryegrass (<em>Lolium perenne</em>) and white clover (<em>Trifolium repens</em>) grown at high soil water levels under controlled conditions

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The response of perennial ryegrass and white clover to fertiliser N rates of 0, 30, 60, 120 and 180 kg N ha−1 when grown at soil water potentials of-10, −20, −25 and −35 kPa were investigated. Increasing fertiliser N levels...
  5. The quantification of grazing capacity from grazing — and production values for forage species in semi-arid grasslands of southern Africa

    The quantification of grazing capacity from grazing — and production values for forage species in semi-arid grasslands of southern Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The relation between rangeland condition and grazing capacity was determined along a degradation gradient. In studying agronomic values of forage species, the average production per tuft was combined with its grazing preferences, to link grazing values for species in the...
  6. The trophic position of planktonic ciliate populations in the food webs of some East African lakes

    The trophic position of planktonic ciliate populations in the food webs of some East African lakes

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The trophic role of planktonic ciliates was investigated in the food webs of 17 East African lakes of different salinity and trophy. Experiments with 1μm latex beads showed that Cyclidium, Halteria, Dysteria, Aspidisca and Vorticella are bacterivores. Examination of food...
  7. Studies on ovulate strobili and seed production of <em>Pinus patula</em> in KwaZulu-Natal

    Studies on ovulate strobili and seed production of <em>Pinus patula</em> in KwaZulu-Natal

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    Cone and seed production studies in Pinus patula were conducted bythe Institute for CommercialForestry Research (ICFR) in KwaZulu-Natal as part ofthe improvement programme of the species. The optimum altitude for female strobilus and seed production is approximately 1450 m in...
  8. A comparison of highveld fodders and fodder flows for growing out long yearling steers

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A fodder flow/animal experiment 40,8 ha in extent (7,5 ha irrigated), with 19 paddocks, was carried out over a two and a half year period.
  9. 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.
  10. Die ekonomiese implikasies van bosverdigting en bosbeheer soos van toepassing op ‘n speenkalfproduksiestelsel in die doringbosveld van die Molopo‐gebied

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Daar bestaan ‘n dringende behoefte aan ekonomies geregverdigde kostes wat as riglyne kan dien vir bosbeheer in die Molopo‐gebied. In hierdie referaat word so ‘n bedrag beraam.