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Theses and Dissertations (Plant Production and Soil Science): Recent submissions
Now showing items 61-80 of 341
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(University of Pretoria, 2022)Herbicide resistance has become a global threat to sustainable weed management. It is an avoidable consequence of continuous and repeated use of herbicides with single modes of action, use of unregistered mixtures and use ...
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(University of Pretoria, 2022)Onion (Allium cepa L) is widely used in cooking; they add flavour to dishes such as salad, soup and stew. Onions are the third most popular vegetable in South Africa, after potatoes being first and tomatoes being second. ...
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Leaf pathogens of Eucalyptus in South Africa with particular reference toTeratosphaeria destructans (University of Pretoria, 2021)Commercial plantations comprising of Eucalyptus species and their hybrids make up approximately 44 % of the South African forestry industry. The majority of Eucalyptus plantations in the country are planted in the KwaZulu-Natal ...
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(University of Pretoria, 2014-03)Coal gasification ash (CGA) is the waste by-product of the process of producing synthetic fuel from coal. Every year, millions of tons of this saline, alkaline waste are generated and although alternative uses have been ...
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(University of Pretoria, 2014-11)The composition of sludge organic matter is mainly influenced by the origin of wastewater. The biochemical composition of sludge could, however, alter from post wastewater treatment drying techniques. Such changes have ...
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(University of Pretoria, 2021)Biosolids are the transformed products of sewage sludge produced through various sludge stabilization processes including drying, dosing and digestion. Biosolids are commonly applied to agricultural lands to improve soil ...
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(University of Pretoria, 2021)Irrigated agriculture is currently the single largest consumer of water on the planet, accounting for a near 22% of total freshwater consumption. Efficient water use strategies in the agricultural sector are therefore ...
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(University of Pretoria, 2021)An important part of developing sound water management strategies for crops is to identify phenological stages which are sensitive and insensitive to water stress in terms of yield and quality. This is particularly important ...
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(University of Pretoria, 2021-08)Studies focusing on the impact of forest and cropland fractal geometry (FRAC) on soil loss, erosion severity and patch morphology are rare and the gap is particularly large in the Miombo ecosystem leaving substantial ...
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(University of Pretoria, 2021)The avocado (Persea americana Mill.) is a widely demanded fruit worldwide. While its palatable taste is one of the reasons it is favoured so, the fleshy interior contains a wide range of vitamins, minerals and other health ...
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(University of Pretoria, 2021)The role of fire in Miombo forest ecosystems as an important forestry management tool for sustaining tree biodiversity has increasingly been recognized. In Malawi, there has been a limited or lack thereof of research ...
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(University of Pretoria, 2014-02)This study was conducted in Kadoma, Zimbabwe in the smallholder sector (SH) during 2009/2010 and 2010/2011 seasons. The overall aim of the study was to understand the changes that occur to weed densities, species diversity ...
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(University of Pretoria, 2014-07)Sustainable forest management (SFM) principles emphasize the need for generation of socio-economic benefits for neighbouring communities, minimization of adverse effects and maintenance of good relations with the communities. ...
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(University of Pretoria, 2014-01)Pinus patula has for many years been the most important softwood species along the eastern regions of southern Africa but as a result of the pine pathogen, Fusarium circinatum, there have been serious establishment ...
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(University of Pretoria, 2014-07)Alien invasive plants are of concern in the world because of their potential to spread into the natural environment. Invasion patterns observed in plant species can be attributed among other things to favourable environmental ...
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(University of Pretoria, 2014-06)Moringa oleifera has become increasingly popular as an industrial crop in recent times due to its multitude of useful attributes as a water purifier, nutritional supplement and biofuel feedstock. Besides this, Moringa ...
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(University of Pretoria, 2019)Since the beginning of human civilization, medicinal plants have been used to treat a variety of infectious and non-infectious diseases. The therapeutic properties of phytochemicals have been recognized since ancient human ...
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(University of Pretoria, 2019)Cercospora zeina, a causal pathogen of gray leaf spot (GLS) of maize, is responsible for up to 1 % of global yield losses. Previous small-scale population genetics studies have revealed that C. zeina is a highly diverse ...
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(University of Pretoria, 2019)There are many older potato cultivars in South Africa such as BP1, Up-to-date and Avalanche. These older varieties of potatoes have been studied intensively under South African conditions such that ...
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(University of Pretoria, 2019)As mining and industry continue to impact agricultural lands and waterways, and as competition for access to fresh water increases, the agricultural industry must adapt to grow crops in increasingly polluted lands using ...
Now showing items 61-80 of 341