Articles by Author: Ronald Marumbi

Search results for Ronald Marumbi

We found 17 results for you
  1. Mineralisation of organic fertilisers used by urban farmers in Harare and their effects on maize (<em>Zea mays</em> L.) biomass production and uptake of nutrients and heavy metals

    Mineralisation of organic fertilisers used by urban farmers in Harare and their effects on maize (<em>Zea mays</em> L.) biomass production and uptake of nutrients and heavy metals

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Nutrient release patterns and heavy metal contamination risks associated with animal manure and organic municipal wastes used as basal fertilisers are largely unknown in Zimbabwe. Carbon, nitrogen and phosphorus mineralisation patterns were determined in a 56-day incubation experiment of domestic...
  2. Yield, nutrient and heavy metal uptake of leafy vegetables grown in sewage sludge and poultry manure amended soils

    Yield, nutrient and heavy metal uptake of leafy vegetables grown in sewage sludge and poultry manure amended soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Urban farmers in Harare grow vegetables in soils fertilised with poultry manure (PM) and sewage sludge (SS). Feed and storage management influence nutrient supply of these organic amendments. Nitrogen mineralisation of PM and SS were determined in a non-leaching and...
  3. Vocational training

    Vocational training

    Item type: Journal Article • Journal: South African Family Practice
  4. Letter to the Editor

    Letter to the Editor

    Item type: Journal Article • Journal: South African Family Practice
  5. Letter to the Editor

    Letter to the Editor

    Item type: Journal Article • Journal: South African Family Practice
  6. Letters to the Editor

    Letters to the Editor

    Item type: Journal Article • Journal: South African Family Practice
  7. Letters

    Letters

    Item type: Journal Article • Journal: South African Family Practice
  8. Use and neglect of best-practice HIV/AIDS programme guides by South African companies

    Use and neglect of best-practice HIV/AIDS programme guides by South African companies

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Numerous guidelines set out best-practice policies for HIV/AIDS interventions in the workplace. This study analysed 14 recognised codes and guidelines to gain an understanding of the theoretical consensus regarding the key components of best-practice workplace HIV/AIDS interventions. Nine key components...
  9. Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities

    Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Parrot populations in Africa and Madagascar are declining and the need for conservation actions to address threats is increasingly recognised. Effective conservation requires a robust knowledge base on which decisions over appropriate actions can be made, yet at present there...