Articles by Author: A G Kotze

Search results for A G Kotze

We found 43 results for you
  1. Root Systems of Some Southern Cape Indigenous Forest Trees

    Item type: Journal Article • Journal: South African Forestry Journal
    Root system form of forest trees were investigated and classified in the southern Cape indigenous forests. Windfalls of some of the dominant canopy species were inspected. Root systems were opened up by mechanical excavations. Tree species displayed the following general...
  2. Root-shoot Growth Periodicity in <em>Ocotea bullata</em>

    Item type: Journal Article • Journal: South African Forestry Journal
    Periodicity in leaf fall, and in the growth of roots and shoots of Ocotea bullata was studied. Leaf fall of canopy trees was measured to establish the natural phenological pattern of mature trees. Shoot growth was measured on potted plants...
  3. Land Valuation with a Limited Planning Horizon

    Item type: Journal Article • Journal: South African Forestry Journal
    The forestry industry in South Africa operates within a dynamic environment. Rotations are relatively short, land use conversion takes place regularly and company ownership changes frequently. Foresters in the private sector are therefore reluctant to use Land Expectation Value with...
  4. Exploratory trials on reinforcement of veld with legumes in the south‐eastern transvaal highveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The feasibility and potential of reinforcing veld with legumes in the south‐eastern Transvaal highveld was assessed in a number of trials during the period 1974–84. Experience was gained with regard to methods of establishment, adaptation of legumes to the local...
  5. Comparison of methods for estimating cation exchange capacity of orchard soils

    Comparison of methods for estimating cation exchange capacity of orchard soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Various methods for estimating soil cation exchange capacity (CEC) were compared. CEC obtained by the sum of extractable cations and the Adams-Evans buffer method were considerably higher than those obtained by saturation and displacement of either NH4 + or Na+...
  6. Improved criteria for classifying hydric soils in South Africa

    Improved criteria for classifying hydric soils in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    There is an increasing awareness of the ecological and agricultural importance of hydric (wetland) soils. Because of the scarcity of information in South Africa, this study aimed to critically examine systems currently being applied to the hydric soils of South...