Browsing School of Agricultural, Earth and Environmental Sciences by Title
Now showing items 1549-1568 of 2013
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Qualitative evaluation of smallholder and organic farmer decision support tool (DST) and its improvement by inclusion of a disease management component.
(2011)Historically, South Africans, particularly small-scale farmers have had little support and hence lack tools and information when faced with production decisions. Information plays an important role in enlightening people, ... -
Quantification of the human health risks associated with kerosene use in the informal settlement of Cato Manor, Durban.
(2001)The main objective of this study was to investigate the application of the United States Environmental Protection Agency (US EPA) human health risk assessment framework for quantifying the adverse human health effects of ... -
Quantifying and benchmarking irrigation scheme performance with water balances and performance indicators.
(2007)South Africa is a water scarce country. As pressure on available water resources increases, irrigation, the largest consumer of water, has to find ways of improving water use efficiency. Benchmarking in the irrigation ... -
Quantifying hydrological fluxes of contributing hillslopes in the Weatherley catchment, N. E. Cape, South Africa.
(2009)Hillslope mechanisms and processes are a complex and dynamic set of interactions, but are nevertheless vital components of hydrology due to their critical interactions with surface and groundwater (Lorentz, 2001a). In ... -
Quantifying productivity and water use of sorghum intercrop systems.
(2015)Rural sub-Saharan Africa (SSA) faces the challenge of achieving food security under water scarcity amplified by climate change and variability. Under these conditions, it is necessary to adopt cropping systems that have a ... -
Quantitative and qualitative studies on grain sorghum for traditional beer (dolo) production in Burkina Faso.
(2012)In the Central Plateau of Burkina Faso, grain sorghum [Sorghum bicolor (L.) Moench] is the major cereal crop used to produce the traditional beer commonly called dolo. Improvement of the dolo chain supply that requires ... -
Quantitative comparison of the aerosol optical properties over Durban using ground and satellite based instrumentation.
(2017)Aerosols are ubiquitous constituents in the atmosphere and are important for atmospheric processes. This is due to their ability to scatter and absorb solar radiation and influence cloud microphysics. This study will focus ... -
Quantitative genetic analysis of agronomic and kernel endosperm traits in quality protein maize (QPM) and investigations of the putative nutritional value of contaminated QPM crops.
(2008)The importance of maize in sub-Saharan Africa and the potential of quality protein maize (QPM) to alleviate the nutritional gap caused by lack of access to adequate protein rich foods were highlighted. Frustrations from ... -
A quantitative study on growth, basic wood density and pulp yield in a breeding population of Eucalyptus urophylla S.T. Blake, grown in KwaZulu-Natal.
(2008)The first objective of this study was to evaluate Eucalyptus urophylla S.T. Blake provenances in terms of their growth, basic wood density and pulp yield properties. The second objective was to determine the genetic and ... -
The radiation balance of Midmar Dam in KwaZulu-Natal, South Africa.
(2016)Abstract available in PDF file. -
Rainwater harvesting systems and their influences on field scale soil hydraulic properties, water fluxes and crop production.
(2009)South Africa, in common with many parts of Sub-Saharan Africa, is facing increasing water shortages. Limited available water arising from a low and poorly distributed rainfall, must supply domestic, agricultural, industrial ... -
Rainy season characteristics with reference to maize production for the Luvuvhu river catchment, Limpopo Province, South Africa.
(2017)In arid and semi-arid regions, crop yields are mainly dependent on the amount and spatio-temporal distribution of rainfall. For most smallholder farmers in rural areas of southern Africa, rainfall is a critical input to ... -
Rangeland degradation assessment using remote sensing and vegetation species.
(2011)The degradation of rangeland grass is currently one of the most serious environmental problems in South Africa. Increaser and decreaser grass species have been used as indicators to evaluate rangeland condition. Therefore, ... -
Rapid biomax thermophilic composting effects on quality, nutrient release and fertiliser value of chicken litter composts.
(2016)Large accumulation of organic waste produced from intensive animal production systems pose challenges for disposal and direct land application of these materials adversely affect the environment. Composting aids to reduce ... -
Rapid means of screening for resistance to pests in a sugarcane plant breeding selection programme.
(2014)Chilo partellus (Lepidoptera: Crambidae) and Chilo sacchariphagus (Lepidoptera: Crambidae) are two stem borers which pose a threat to the South African sugar industry at present. The reliable supply of good quality insects ... -
Rates and controls of footpath erosion in Giant's Castle Game Reserve, KwaZulu / Natal Drakensberg.
(1995)The Drakensberg is an important ecological and recreational resource area within southern Africa, yet little knowledge exists concerning the factors controlling soil erosion in the region. The two most important anthropogenic ... -
Re-demarcation process in South Africa : a rural perspective : a case- sudy of the Ntuli tribal authority in KwaZulu Natal.
(2002)The aim of the study is to examine the perceptions of rural people towards the demarcation issue in KwaZulu-Natal. The debate on land and land ownership and control has existed since Africa's invasion by colonists. A ...