Articles by Keyword: P Fertiliser

Search results for P Fertiliser

We found 21 results for you
  1. An improved phosphorus desorption index for the routine determination of the Ambic 2 phosphorus requirement factor of South African soils

    An improved phosphorus desorption index for the routine determination of the Ambic 2 phosphorus requirement factor of South African soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A short (24 h) laboratory incubation study was conducted and plots of P desorbed in Ambic 2 extraction solutions versus added P were constructed for a wide range of soils of varying P fixing capacity representative of the province of...
  2. A study of the kinetics of the adsorption of phosphorus by selected South African soils

    A study of the kinetics of the adsorption of phosphorus by selected South African soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Plots of the decline of the concentration of phosphorus in soil suspensions over time were constructed for 23 selected soils from South Africa and, using non-linear regression analysis, various models were fitted to the time curves, including mechanistic first and...
  3. Effect of soil tillage, crop rotation and nitrogen application rates on plant-N content of spring wheat (<em>Triticum aestivum L</em>.) in the Swartland wheat-producing area of the Republic of South Africa

    Effect of soil tillage, crop rotation and nitrogen application rates on plant-N content of spring wheat (<em>Triticum aestivum L</em>.) in the Swartland wheat-producing area of the Republic of South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Studies on nitrogen content in spring wheat were conducted during the 2000 and 2001 growing seasons as part of a long-term tillage and crop rotation trial. Four tillage methods were used, namely conventional tillage (CT), tine tillage (TT), minimum tillage...
  4. Two-step approach to determining some useful phosphorus characteristics of South African soils: a review of work done at the ARC-Institute for Soil, Climate and Water

    Two-step approach to determining some useful phosphorus characteristics of South African soils: a review of work done at the ARC-Institute for Soil, Climate and Water

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Work carried out at the ARC-Institute for Soil, Climate and Water on soil phosphorus characteristics was reviewed. Regression functions were established in order to test the correlations between P parameters, single point indices and soil properties. The parameters investigated were...
  5. Effect of soil tillage, crop rotation and nitrogen application rates on bread-baking quality of spring wheat (<em>Triticum aestivum</em> L.) in the Swartland wheat producing area of South Africa

    Effect of soil tillage, crop rotation and nitrogen application rates on bread-baking quality of spring wheat (<em>Triticum aestivum</em> L.) in the Swartland wheat producing area of South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Spring wheat (Triticum aestivum L.) is produced in the wheat producing areas of the Western Cape Province, Republic of South Africa, primarily for bread-baking purposes. Milling and baking characteristics are therefore of utmost importance. In a long-term tillage and crop...
  6. Advances in sugarcane soil fertility research in Southern Africa

    Advances in sugarcane soil fertility research in Southern Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The South African sugar industry is a modern, well organised industry and highly cost-competitive in world terms, producing some 2.3 million tons of sugar annually from 20 million tons of cane. The bulk of the cane is produced by some...
  7. Effect of pine bark goat manure medium on seedling growth and N, P, K concentration of various vegetables

    Effect of pine bark goat manure medium on seedling growth and N, P, K concentration of various vegetables

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Pine bark compost is the medium of choice for seedling growers in South Africa due to its availability, low cost and good physical properties. However, it is acidic, has low electrical conductivity (EC) and nutrient content such that fortification and...
  8. Growth, yield and grain protein content of wheat (<em>Triticum aestivum</em> L<em>.</em>) in response to nitrogen fertiliser rates, crop rotation and soil tillage

    Growth, yield and grain protein content of wheat (<em>Triticum aestivum</em> L<em>.</em>) in response to nitrogen fertiliser rates, crop rotation and soil tillage

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Soil tillage affects both the profitability and sustainability of cropping systems. Minimum- and no-tillage systems are promoted because research has shown that these systems may reduce production costs and improve biological sustainability when compared to conventional systems, in which mouldboard...
  9. 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...
  10. A vetch winter cover crop can improve response to nitrogen fertiliser and profitability of no-till maize

    A vetch winter cover crop can improve response to nitrogen fertiliser and profitability of no-till maize

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A high nitrogen (N) fertiliser requirement can be a deterrent to the adoption of conservation agriculture (CA). A field trial was carried out to test whether a high biomass-yielding vetch (Vicia dasycarpa L.) winter cover crop can be used to...