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Now showing items 1-10 of 16
Evaluating the effect of crop rotations and tillage practices on soil water balances of selected soils and crop performances in the Western Cape
(Stellenbosch : Stellenbosch University, 2014-04)
ENGLISH ABSTRACT: The aim of this study was to investigate the influence of crop rotation and soil tillage on the soil water balance and water use efficiency of wheat, canola, lupin and medics in the Swartland sub region ...
An investigation of the soil properties controlling gully erosion in a sub-catchment in Maphutseng, Lesotho
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT: Lesotho is a country with an international reputation for the severe degree of soil erosion in its landscape.
Despite several national soil conservation projects, soil erosion continues at an astounding ...
Soil health and quality concept in agricultural extension and soil science : an assessment of topsoil conditions in a long term vineyard soil management trail in Robertson, South Africa
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT:
The natural resource condition or health has been accepted as a valuable indicator of
sustainable land use. The assessment of soil health (quality) has become a valuable tool in
determining the ...
The degradation of atrazine by soil minerals : effects of drying mineral surfaces
(Stellenbosch : Stellenbosch University, 2014-04)
ENGLISH ABSTRACT: The herbicide atrazine (ATZ, 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) has been identified as an environmental endocrine disruptor and possible human carcinogen. The presence of atrazine, ...
Comparison of calcium ameliorants and coal ash in alleviating the effects of subsoil acidity on maize root development near Middelburg, Mpumalanga
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT: Acidic soils are a major limitation to agriculture worldwide. The Highveld in South
Africa has many acidic soils and several coal burning power stations. These coal
burning power stations generate ...
Evaluering van grondvoorbereidingspraktyke wat in die wingerdbedryf uitgevoer word in terme van geselekteerde grondfisiese eienskappe
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: The study was conducted in the Western Cape Province to investigate the effect of soil
preparation on selected soil physical properties. This study was necessitated by the negative
effects that high ...
Exploiting soil and terrain heterogeneity : an investigation into vigour and physiology of grapevines on and off "heuweltjies‟ in the Western Cape, South Africa
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: The topic of landscape heterogeneity has captured the imagination of ecologists and agriculturists alike and has been extensively investigated in this dissertation. Heuweltjies are landscape features ...
Distribution and stability of soil carbon in spekboom thicket, Eastern Cape, South Africa
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Soils of semi-arid regions generally have low organic matter contents, primarily attributed to prevailing climatic conditions. Yet, the spekboom thicket, located in the semi-arid region of the Eastern ...
Effect of biochar on chemistry, nutrient uptake and fertilizer mobility in sandy soil
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Biochar is a carbon-rich solid material produced during pyrolysis, which is the thermal degradation of biomass under oxygen limited conditions. Biochar can be used as a soil amendment to increase the ...
Effect of biochar on selected soil physical properties of sandy soil with low agricultural suitability
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Biochar has been labelled to be a key factor in the global carbon mitigation act and has
been described as the modern day equivalent (terra nova) to the terra preta dark earth
soils of the Brazilian ...