Articles by Author: Cornelia Hesther Margaretha Bloem

Search results for Cornelia Hesther Margaretha Bloem

We found 23 results for you
  1. Embodied self-awareness among South African social services therapist-practitioners: An exploratory study

    Embodied self-awareness among South African social services therapist-practitioners: An exploratory study

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    We explored South African social service therapist-practitioners’ experiences of their own lived body in the context of practice. The participants consisted of a convenience sample of 13 therapist-practitioners registered with the Health Professions Council of South Africa and the South...
  2. Effek van residuele plus toegediende stikstof op graanopbrengs van mielies in die Hoëveldstreek

    Effek van residuele plus toegediende stikstof op graanopbrengs van mielies in die Hoëveldstreek

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die behoefte in Suid-Afrika aan stikstofbemestingsriglyne wat op 'n meer fundamentele basis berus, het aanleiding gegee dat drie veldproewe in die 1992/93 groeiseisoen begin is. Residuele NO3-N is na oes (Julie 1993) en voor plant (November 1993) op dieptes van...
  3. The combining ability of RTx432 for Sorghum malt quality and stem borer resistance

    The combining ability of RTx432 for Sorghum malt quality and stem borer resistance

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Combining ability of R-lines with respect to malt quality and stem borer resistance was evaluated in two trials. Crosses between three R-lines and eight R-lines were made for malt quality and three R-lines and seven R-lines for stem borer resistance...
  4. A critical soil sulphur level for maize (<em>Zea mays</em> L.) grown in a glasshouse

    A critical soil sulphur level for maize (<em>Zea mays</em> L.) grown in a glasshouse

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Sulphur is an essential nutrient for the production of the amino acids cysteine and methionine, which are important for protein syntheses. Previous studies showed that sulphur deficiencies are becoming common because of the tendency to use more concentrated and liquid...
  5. Spatial variability of nitrate nitrogen in soil during the growing season of maize, cowpea and soybean

    Spatial variability of nitrate nitrogen in soil during the growing season of maize, cowpea and soybean

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The nitrogen advantage of legumes in crop rotation systems is well known, but the nitrogen advantage from legumes to associated crops in an intercropping system is unclear. The objective of this study was to determine whether plant-available nitrogen is released...
  6. Effect of annual legumes on soil nitrogen and on the subsequent yield of maize and grain sorghum

    Effect of annual legumes on soil nitrogen and on the subsequent yield of maize and grain sorghum

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The objective of this study was to quantify the nitrogen and yield advantage of cowpea, soybean and groundnuts to succeeding maize and grain sorghum crops. Treatments at six localities consisted of a crop rotation with annual legumes and maize or...
  7. Relationship between acid saturation and hydrogen activity of soils from different districts in South Africa

    Relationship between acid saturation and hydrogen activity of soils from different districts in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Soil analyses results from six districts in the western maize producing areas of South Africa were used for correlating exchangeable acidity and acid saturation with hydrogen ion activity (pH). From the resulting regression equations, the pH values that corresponded with...
  8. The delta yield procedure for nitrogen fertilisation of maize in South Africa

    The delta yield procedure for nitrogen fertilisation of maize in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The nitrogen fertilisation requirement for maize in South Africa is generaly estimated through the optimum yield-nitrogen rate procedure. The efficacy of this procedure is questionable. Delta yield, the difference between the maize grain yield at the economic optimum and that...
  9. GENERALIZED RANK CONDITIONS FOR SYSTEMS IN A CATEGORY

    GENERALIZED RANK CONDITIONS FOR SYSTEMS IN A CATEGORY

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    A generalized rank condition is used to deduce necessary and sufficient conditions for the reachability and observability of a system in a category. A duality principle between reachability and observability is established. These results generalize those known previously for bilinear...
  10. A Comparison of Quality of Life in Haemodialysis and Peritoneal Dialysis Patients

    A Comparison of Quality of Life in Haemodialysis and Peritoneal Dialysis Patients

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    Decreased quality of life of end-stage renal disease is further compromised by renal function replacement treatments such as haemodialysis (HD) and peritoneal dialysis (PD). Poor quality of life negatively affects treatment outcome. This study compared quality of life between HD...