Articles by Keyword: Soil Water

Search results for Soil Water

We found 627 results for you
  1. Fertilising Commercial Forest Species in Southern Africa: Research Progress and Problems (Part 1)

    Item type: Journal Article • Journal: South African Forestry Journal
    Since the inception of forest fertiliser research in Southern Africa in 1926, eight eucalypt, six pine and four acacia species have been tested, encompassing a wide range of sites in summer, winter and uniform rainfall areas. Marked deficiencies of P,...
  2. The Relationship between Soil Water Status, Rainfall and the Growth of <em>Eucalyptus grandis</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    Available soil water is recognised as the main factor influencing the growth of commercial plantations in southern Africa. This is of strategic importance as successive rotations of demanding species such as Eucalyptus grandis may be depleting the soil water reserves...
  3. The Hydrological Effects of a Wildfire in a Eucalypt Afforested Catchment

    Item type: Journal Article • Journal: South African Forestry Journal
    A high-intensity wildfire through a humid, upland catchment which was partially afforested to Eucalyptus fastigata, markedly increased stormflows and caused high soil losses off the afforested slopes. Total streamflow yield was unchanged but baseflow was reduced after the fire. The...
  4. 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,...
  5. Evapotranspirasie in drie plantgemeenskappe van ‘n <em>Rhigozum trichotomum</em> habitat te upington

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Evapotranspirasie in drie plantgemeenskappe van ‘n R. trichotomum habitat, naamlik, suiwer gras, suiwer R. trichotomum en ‘n gemengde stand van R. trichotomum en gras is gedurende die 1985–86 groeiseisoen bestudeer. Drie persele van elke plantgemeenskap is hidrologies geisoleer, besproei en...
  6. Relations between soil factors and herbage yields of natural grassland on sandy soils in the south‐eastern Transvaal

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Forty systematically‐placed observation points were established in a 1.5‐ha area of floristically unifoim veld in which productivity varied spatially. At each point grass yields were determined by harvesting quadrats at eight‐week intervals during the growing season, and the volumetric water...
  7. Effect of soil fertility on the vegetative growth, yield and water use of wheat (<em>Triticum aestivum</em> L.)

    Effect of soil fertility on the vegetative growth, yield and water use of wheat (<em>Triticum aestivum</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Well-fertilized wheat was found to use more water than wheat on poorly fertilized plots, but the yield was increased, resulting in increased water-use efficiency. Variations in leaf area duration after anthesis accounted for 81% of the variation in yield.
  8. Soil-water conservation as affected by primary tillage practices

    Soil-water conservation as affected by primary tillage practices

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles...
  9. Soil-water conservation as affected by primary tillage practices

    Soil-water conservation as affected by primary tillage practices

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles...
  10. Intercropping of beans (<em>Phaseolus vulgaris</em> L.) and sugar-cane: The effect of inter-specific competition on the growth of plant cane

    Intercropping of beans (<em>Phaseolus vulgaris</em> L.) and sugar-cane: The effect of inter-specific competition on the growth of plant cane

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The competitive effects of intercropped beans (maturation period: three months) on the growth, tiller development and yield of plant sugar-cane (maturation period: 18 months) in the subhumid coast-hinterland of Natal were investigated over two seasons. In the first season rainfall...