Browsing Soil Science by Title
Now showing items 1-20 of 68
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A laboratory and glasshouse investigation on the effect of liming with fly ash and processed stainless steel slag on two contrasting South African soils.
(2008)Soil acidity is a major land degradation problem that limits crop production globally. The high cost of traditional liming materials (calcitic limestone, dolomite etc.) and the vast areas of land that require liming have ... -
Assessing the effect of in-field rainwater harvesting on soil physico-chemical properties and crop yield in comparison with the traditional farmers’ practice.
(2017)Most communal farmers in South Africa rely on rain-fed agriculture. However, the country is experiencing rainfall variability as well as low soil fertility. These are major limiting factors to food production especially ... -
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 ... -
The characterisation of some South African water treatment residues and glasshouse pot experiments to investigate the potential of two residues for land disposal.
(2003)Water treatment residues (WTRs) are the by-product from the production of potable water. They consist mainly of the precipitated hydrous oxides of the treatment chemicals, and materials removed from the raw water. This ... -
The characterisation of some South African water treatment residues and glasshouse pot experiments to investigate the potential of two residues for land disposal.
(2003)Water treatment residues (WTRs) are the by-product from the production of potable water. They consist mainly of the precipitated hydrous oxides of the treatment chemicals, and materials removed from the raw water. This ... -
Characteristics of sesquioxidic soils.
(2014-11-11)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 ... -
Chemical characteriistics, fertilizer value and escherichia coli and salmonella composition of vermicomposted sewage sludge.
(2016)Abstract available in PDF file. -
Comparative effects of sugarcane monoculture on soil organic matter status and soil biological activity.
(2002)The effects of increasing periods under sugarcane monoculture (managed by preharvest burning) on soil organic matter content and related soil properties were investigated in the 0 to 10 cm layer of a sandy coastal Ochric ... -
A comparative study of the BCR sequential and batch extractions for wastes and waste-amended soil.
(2010)The use of standard soil tests to assess waste materials has become a common practice in waste management. However, the suitability of using standard soil tests on waste materials is questionable. Therefore, this investigation ... -
A comparison of soil and foliar-applied silicon on nutrient availability and plant growth and soil-applied silicon on phosphorus availability.
(2006)A greenhouse study was carried out to investigate the effectiveness of soil-applied silicon (Si) with that of foliar applications for sorghum growth. Silicon sources were soil-applied as calmasil (calcium silicate) at ... -
A comparison of soil extraction methods for predicting the silicon requirements for sugarcane.
(2007)Although silicon (Si) has not yet been recognized as an essential nutrient element, its application to sugarcane (Saccharum officinarum L.) has proved to be beneficial. Since optimum crop production depends on the maintenance ... -
A comparison of the effects of tillage on soil physical properties and microbial acitivity at different levels of nitrogen fertilizer at Gourton Farm, Loskop, KwaZulu-Natal.
(2010)Long-term food security and environmental quality are closely linked to maintaining soil quality. Therefore, the assessment of the effect of agricultural management practices on soil chemical, physical and biological ... -
The effect of various crop residue management practices under sugarcane production on soil quality.
(2013-12-02)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 burning or mulching of harvest residues on selected soil properties in a Eucalyptus plantation in Northern KwaZulu-Natal.
(2014)The sustainable management of commercial forest resources is required to ensure long-term soil fertility and the productivity of later rotations; this includes soil nutrient retention and the protection of soil structure. ... -
Effects of irrigation-induced salinity and sodicity on soil chemical and microbial properties and sugarcane yield.
(2001)The effects of irrigation-induced salinity and/or sodicity on sugarcane yield, and two growth parameters, namely stalk height and number of nodes per stalk , were investigated on a sugarcane estate in the Zimbabwean lowveld. ... -
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 land use change on soil and water quality and plant species composition of Cedara wetlands.
(2015)Wetlands are vital in the provision of ecosystem services and land use change could affect their functioning and health. Disposal of organic waste slurries on wetlands could result in high nutrient loads, whereas drainage ... -
The effects of surface-applied poultry manure on top- and subsoil acidity and selected soil fertility characteristics.
(2001)The effects of surface applications of poultry manure on pH, exchangeable AI, exchangeable Al saturation and levels of available macronutrients in the surface and subsurface layers were investigated in some acid soils ... -
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 ...