Now showing items 1-10 of 10

    • Causes and impact of desertification in the Butana Area of Sudan 

      Elhag, Muna Mohamed (University of the Free State, 2006-11)
      English: Desertification is one of the most serious environmental and socio-economic problems of our time. Desertification describes circumstances of land degradation in arid, semi-arid and dry sub-humid regions resulting ...
    • Development of a water management decision model for Limpopo Province, South Africa 

      Tshikolomo, Khathutshelo Alfred (University of the Free State, 2012-07)
      The study was conducted in the Limpopo Province with a focus on the Limpopo and Luvuvhu- Letaba Water Management Areas. The main issues investigated were (1) water resources, mainly runoff and storage capacity of the ...
    • Development of an index for wheat stripe rust infection 

      De Wet, Linda (University of the Free State, 2001-11)
      English: The main objective of this project was to develop an early warning index for infection of stripe rust (Puccinia striiformis f. sp. tritici) in susceptible cultivars of wheat (Triticum aestivum) for the main wheat ...
    • Improvement of SAPWAT as an irrigation planning tool 

      Van Heerden, Pieter Schalk (University of the Free State, 2015-06)
      English: In a world with a continuous reduction in per capita availability of fresh water, the increase in the efficiency of irrigation water use becomes more important as a means to postpone the time when water shortages ...
    • Micrometeorology and physiology of sugarcane crop during water stress 

      Koonjah, S. S. (University of the Free State, 2001-11)
      Water stress is the single most important factor limiting yield in plants. The effects of water stress on the micrometeorology and physiology of sugarcane were investigated using the rainshelter facilities provided at ...
    • Optimising runoff to basin ratios for maize production with in-field rainwater harvesting 

      Tesfuhuney, Weldemichael Abraha (University of the Free State, 2012-01)
      Food production in semi-arid areas principally depends on the availability of water. Consequently, improving rainwater productivity and modifying the available energy for unproductive water losses is an important and ...
    • Response of pearl millet to water stress during vegetable growth 

      Tfwala, Cinisani Mfan'Fikile (University of the Free State, 2010-05)
      Pearl millet (Pennisetum glaucum [L.] R. Br.) is a drought tolerant cereal crop planted mainly in arid and semi-arid regions of the world. Water stress still remains one of the challenges facing agriculture. Crops face ...
    • Soil surface evaporation studies on the Glen/Bonheim ecotope 

      Nhlabatsi, Nhlonipho Nhlanhla (University of the Free State, 2010-11)
      The biggest challenge in semi-arid areas is finding ways of reducing the major unproductive water loss: evaporation from the soil surface. A large number of subsistence farmers east of Bloemfontein, in and around Thaba’Nchu ...
    • A three month stream flow forecast for water management in the upper Olifants catchment 

      Phahlane, Mmotong Obed (University of the Free State, 2007-11)
      English: A Climate Predictability Tool was used to evaluate the relationship between sea-surface temperatures and stream flow at different lead-times in the upper Olifants catchment in Mpumalanga, South Africa. Four ...
    • Verfyning en verbetering van 'n donsige skimmel waarskuwingsmodel vir die Wes-Kaap 

      Haasbroek, Pieter Daniel (University of the Free State, 2006-11)
      English : Downy Mildew (Plasmopara viticola) is known as one of the most important vineyard diseases in the Western Cape, because it has the capability to develop and spread very fast, and so cause large crop losses in ...