Articles by Keyword: Chemical Properties

Search results for Chemical Properties

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  1. Die invloed van kultivar, stikstofbemesting en tophoogte op die kwaliteit van oonddroogtabak II. Chemiese kwaliteit

    Die invloed van kultivar, stikstofbemesting en tophoogte op die kwaliteit van oonddroogtabak II. Chemiese kwaliteit

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die toenemende vraag na beter kwaliteit oonddroogtabak, het aanleiding gegee tot navorsing om te bepaal watter rol stikstofbemesting, tophoogte en kultivar speel. Vyf oonddroogtabakkultivars (TL33, OD86, A4, OD224 en OD212) is in 'n veldproef onderwerp aan drie stikstofbemestingspeile (70, 100...
  2. Use of solid waste bagasse from a paper mill as an organic amendment and its effect on some soil properties: a case study

    Use of solid waste bagasse from a paper mill as an organic amendment and its effect on some soil properties: a case study

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    At a paper mill in KwaZulu-Natal, South Africa bagasse waste was disposed of by burying it in a layer resulting in variable sugar cane growth. The waste was mostly organic fibres, had a high water holding capacity, and contained small...
  3. Soil properties changes after short-term livestock exclusion in “degraded” communally managed rangelands in the western Bophirima District, South Africa

    Soil properties changes after short-term livestock exclusion in “degraded” communally managed rangelands in the western Bophirima District, South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Livestock grazing and detrimental overgrazing are commonly associated with severe rangeland degradation particularly in communally managed pastoral systems in South Africa. Effects of grazing exclusion on vegetation are well documented, but there is a dearth of quantitative research conducted in...
  4. Exploring differences of soil quality as related to management in semiarid rangelands in the western Bophirima District, North West province, South Africa

    Exploring differences of soil quality as related to management in semiarid rangelands in the western Bophirima District, North West province, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Differences in land-use management may result in different rangeland condition (soil, vegetation and biodiversity) and productivity. Vegetation condition in contrasting land-use management systems is well documented in semiarid rangelands, but relatively little information is available on soil quality. This study...
  5. The Effects of Phosphate Fertilizers and Manure on Maize Yields in South Western Kenya

    The Effects of Phosphate Fertilizers and Manure on Maize Yields in South Western Kenya

    Item type: Journal Article • Journal: East African Agricultural and Forestry Journal
    Phosphorus, nitrogen and Striga hermonthica are the major constraints to maize production in the Nyanza Province of Kenya. Field trials were conducted on-farm in Nyanza Province to investigate the effects of phosphate fertilizers and manure on maize yields. The experimental...
  6. Site Relationships for Some Wood Properties of Pine Species in Plantation Forests of Southern Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    Although genetic variation in wood properties of the three main pine species planted in southern Africa is high, there are important site relationships.
  7. Site Evaluation in Black Wattle with Special Reference to Soil Factors

    Item type: Journal Article • Journal: South African Forestry Journal
    Together with climate, soil characteristics are the most important factors affecting tree growth. However, the attempts in many site evaluation studies to establish a direct relationship between soil factors and tree growth have not been very successful, the exception being...
  8. Volume, Pulp and Paper-making Traits of <em>Pinus maximinoi</em> Provenances Planted at Two Sites in South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    Two provenance trials of P. maximinoi H.E. Moore growing in the eastern Transvaal, South Africa, were assessed for growth, pulp and paper-making traits at approximately 11 years of age. Provenances were significantly (p<0,05) different for breaking length, burst index and...
  9. Regeneration Procedures of <em>Pinus radiata</em> in the Southern Cape Province

    Item type: Journal Article • Journal: South African Forestry Journal
    The present paper, which discusses the regeneration of Pinus radiata, represents Part 1 of a series of publications based on experimental studies of the subject. It provides information about the background of the trials and discusses the modification of soil...
  10. The Wood Properties and Qualities of Three South African-Grown Eucalypt Hybrids

    Item type: Journal Article • Journal: South African Forestry Journal
    Hybridisation is becoming an increasingly important technique in tree breeding to improve yields, adaptability and wood quality. In this study, sample material from crosses of Eucalyptus grandis with E. tereticornis, E. camaldulensis and E. urophylla established on sites of which...