Articles by Keyword: Soil Fertility

Search results for Soil Fertility

We found 347 results for you
  1. A multivariate approach to the response of lucerne plants to varying soil conditions in pots

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Five levels of lime, five levels of P and a constant level of K were applied to soil in pots to create a range of soil conditions. Factor analysis was used to relate a number of soil test variables to...
  2. 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.
  3. Reproduktiewe opbrengskomponente van mielies (<em>Zea mays</em> L.) soos beïnvloed deur verskillende grondvrugbaarheids- en be- sproeiingspeile

    Reproduktiewe opbrengskomponente van mielies (<em>Zea mays</em> L.) soos beïnvloed deur verskillende grondvrugbaarheids- en be- sproeiingspeile

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die reproduktiewe opbrengskomponente van mielies (Zea mays L.) is gedurende die 1982/83-seisoen gemonitor by sekere behandelings van 'n langtermyn bemestings- en besproeiingsproef met twee peile elk van besproeiing (W), stikstof (N), fosfor (P), kallum (K) en kompos (M). Addisionele besproeiing...
  4. Residual effects of lupins in two lupin/maize fodder production systems

    Residual effects of lupins in two lupin/maize fodder production systems

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The residual effects of three lupin species, whose tops were either removed or ploughed in, on a following maize crop were compared with the response of maize, not preceded by lupins, to N fertilizer in field trials over two seasons...
  5. Loss of nitrogen fertility and its restoration in some Orange Free State soils

    Loss of nitrogen fertility and its restoration in some Orange Free State soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effects of present or past cultivation on nitrogen fertility in some central Orange Free State soils were investigated by the comparison of paired samples of cultivated or reverted soils with uncultivated soils situated as closely as possible to one...
  6. Nutrient inflow to the roots of irrigated wheat throughout the growing season under semi-arid climatic conditions

    Nutrient inflow to the roots of irrigated wheat throughout the growing season under semi-arid climatic conditions

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The objective of this study was to obtain information on the inflow of N, P, K, Ca, Mg, S, Cu, Fe, Mn and Zn to the roots of wheat (Triticum aestivum L.) grown under normal irrigation farming conditions. Except for...
  7. Interaction between cultivar and soil fertility on grain yield, yield components and grain nitrogen content of wheat

    Interaction between cultivar and soil fertility on grain yield, yield components and grain nitrogen content of wheat

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of soil nutrient status on the performance of four wheat cultivars was studied in a long-term field experiment at the University of Pretoria. The objective was to quantify the effect of soil nutrient status on yield, yield components...
  8. An investigation into soil fertility in two resource-poor farming communities in KwaZulu-Natal (South Africa)

    An investigation into soil fertility in two resource-poor farming communities in KwaZulu-Natal (South Africa)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Low soil fertility is one of the major constraints affecting agriculture in Africa, a phenomenon that is also evident in fields of resource-poor farmers in KwaZulu-Natal. However, nutrient depletion status is field specific. This paper investigates the hypothesis that among...
  9. Comparison of medium-term organic and inorganic fertiliser application on leaf nutrient concentration and yield of maize in rural agriculture in the Mbizana area, Eastern Cape province, South Africa

    Comparison of medium-term organic and inorganic fertiliser application on leaf nutrient concentration and yield of maize in rural agriculture in the Mbizana area, Eastern Cape province, South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A five-year study was conducted in the Mbizana area, Eastern Cape province, to assess the seasonal and medium term effects of chicken manure and inorganic fertiliser application to an acid clay loam topsoil on nutrient element uptake and yield of...
  10. Conservation agriculture effects on plant nutrients and maize grain yield after four years of maize–winter cover crop rotations

    Conservation agriculture effects on plant nutrients and maize grain yield after four years of maize–winter cover crop rotations

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effects of maize rotation with oat (Avena sativa cv. Sederberg) and grazing vetch (Vicia dasycarpa cv. Max) winter cover crops on nutrient availability, maize grain yield and maize grain nutrient concentration were investigated. Soil samples were collected from the...