Browsing Doctoral Degrees (Soil Science) by Title
Now showing items 1-20 of 38
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Application of soil indigenous knowledge in rural communities of eastern South Africa.
(2018)This study investigated ethnopedological knowledge related to classification, fertility and non-agricultural uses of soil in four villages in KwaZulu-Natal and the Eastern Cape, South Africa. Ethnographic methods elicited ... -
Bioremediation of Atrazine- and BTX-contaminated soils : insights through molecular/physiological characterization.
(2001)Most natural products and xenobiotic molecules, irrespective of their molecular or structural complexity, are degradable by some microbial species/associations within particular environments. Atrazine- and selected petroleum ... -
Characteristics of sesquioxidic soils.
(1974)Sesquioxidic soil clays from Oxisols in South Africa, Australia and Brazil, and two clays from Andosols in Japan and New Zealand, were investigated by XRD, OTA, IR, EM and quantitative mineralogical analysis. The ... -
Comparative characteristics of biochar types from human faecal wastes and pine-bark and sorption of selected heavy metals from effluent and their mobility in an amended loam soil.
(2018)Heavy metals from industrial effluents poses risks to the environment and human health. Pyrolysis of locally available organic wastes could address solid organic waste management and produce a biochar that could immobilise ... -
The effect of various crop residue management practices under sugarcane production on soil quality.
(2003)This study examined the influence of different management practices under sugarcane production on soil chemical, biological and physical properties on a long-term (59yr) field experiment in KwaZulu-Natal. These ... -
The effects of land use and management practices on soil microbial diversity as determined by PCR-DGGE and CLPP.
(2011)The environmental impact of anthropogenic disturbances such as agriculture, on the soil ecosystem, and particularly on soil microbial structural and functional diversity, is of great importance to soil health, conservation ... -
Effects of the land disposal of water treatment sludge on soil physical quality.
(2001)An essential step in producing "drinking" water is to precipitate the suspended and dissolved colloids through the addition of flocculents such as lime, ferric chloride, aluminium sulphate and/or poly-electrolytes. The ... -
Estimation of hydrological properties of South African soils.
(1983)A computer simulation model of the soil water regime can be a useful research, planning and management tool, providing that the data required by the model are available. Finite difference solutions of the general flow ... -
Evaluation of extraction based fertilizer recommendations.
(2015)There is a need to improve methods by which nitrogen, phosphorus and potassium are currently recommended. There is a considerable lack of mechanistical justifications for the methods used to recommend these nutrients. Lack ... -
An evaluation of the fertilizer requirements of Chicory (Cichorium intybus var. sativum) in KwaZulu-Natal, South Africa.
(2018)Abstract available in PDF file. -
Factors affecting nitrogen utilization by sugarcane in South Africa.
(1972)TIhe response of sugarcane to applied N in South Africa varies considerably from one soil to another, particularly in the plant crop. Responses to fertilizer N by ratoon cane are generally much greater than those given ... -
Fertiliser value of biogas slurry for maize and dry bean production and its effect on soil quality and carbon dioxide emissions.
(2019)Abstract available in pdf. -
Grassland degradation and rehabilitation of soil organic carbon and nitrogen stocks.
(2014)Land degradation is widely considered to adversely affect soil fertility, soil quality, constrain productivity, subsequently leading to a decline in soil organic carbon (SOC) and nutrients in soils, yet little is known ... -
Investigation of 2:1 layer silicate clays in selected southern African soils.
(1986)As very little detailed X-ray diffraction investigations have been carried out in South Africa on 2:1 phyllosi1icates in soils, the aim of the present study was to contribute to the knowledge of soil genesis, as well as ... -
An investigation, using synchrotron radiation and other techniques, of the composition of San rock art paints and excavated pigments from Maqonqu shelter, and comparative paint data from three other sites in KwaZulu-Natal, South Africa.
(2011)This study aimed to: 1) characterise the individual San parietal art rock art paint colours; 2) relate paint compositions to erosion susceptibility; 3) determine if paint pigments can be related to pigment samples excavated ... -
Investigations into aluminium toxicity and resistance in cynodon dactylon using invitro techniques.
(2004)Aluminium toxicity is a significant limiting factor to agricultural crop production globally, promoting the need for plants that are resistant to low pH and high Al3 +, Current literature suggests that Al3 + inhibits plant ... -
A laboratory and glasshouse evaluation of an anaerobic baffled reactor effluent as a nutrient and irrigation source for maize in soils of KwaZulu-Natal, South Africa.
(2012)Scarcity of water for irrigation is a serious hindrance for small-scale farmers in sub-Saharan Africa. The use of good quality water for irrigation has resulted in increasing pressure on such water which has prompted ... -
Land use and land management impact on CO2 emissions from soils in selected smallholder farming systems.
(2016)Abstract available in PDF file.