- UPSpace Home
- →
- Natural and Agricultural Sciences
- →
- Browsing Natural and Agricultural Sciences by Supervisor
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing Natural and Agricultural Sciences by Supervisor "Van der Laan, Michael"
Now showing items 1-12 of 12
-
(University of Pretoria, 2017)This study was conducted to better understand the usefulness of water footprint (WF) information for vegetable crops produced on a water-stressed aquifer in South Africa. Different methodologies were investigated in a ...
-
(University of Pretoria, 2018)The cessation of mining activities and concurrent abandonment of mines in many South African mining areas has left the state with the responsibility of caring for and rehabilitating ownerless mines, which are prone to ...
-
(University of Pretoria, 2017)This study estimated the total volumetric water footprint (WF) of two vegetable crops, a root vegetable crop (carrot) and a leafy vegetable crop (Swiss chard) grown in Gauteng Province, South Africa. South Africa is a water ...
-
(University of Pretoria, 2017)Nitrogen (N) plays a vital role in plant metabolic processes, and may cause severe economic losses in crop production if deficient. When agricultural composts are used to counteract soil impoverishment and supply crop ...
-
(University of Pretoria, 2018)Over the last decade, Africa has been targeted by large-scale agricultural investments (LAIs) in the global rush for agricultural land and resources. This potential land use change has generated multifaceted and controversial ...
-
(University of Pretoria, 2017)Nitrogen (N) leaching is one of the important pathways that leads to water pollution, and previous studies have highlighted the difficulty in measuring it. The purpose of this study was to evaluate different techniques ...
-
(University of Pretoria, 2017)The most accurate way of quantifying water use or evapotranspiration (ET) is achieved through direct physical measurements. Therefore, quantifying water use of sweet potato using the eddy covariance (EC) system which is ...
-
(University of Pretoria, 2018)Maize and sugarcane production has been threatened by declining soil quality due to long-term unsustainable management practices, which have increased the reliance on inorganic fertilization. This study reports on long-term ...
-
(University of Pretoria, 2016)Sugarcane is a high-biomass producing crop and often requires substantial amounts of nitrogen (N) fertiliser to achieve optimal yields. Nitrogen fertiliser represents a significant input cost for the sugar industry. This ...
-
(University of Pretoria, 2020-02)The average rice (Oryza sativa L.) farmer in sub-Saharan Africa (SSA) harvests less than 1.5 t ha-1 of grain yield in uplands production systems, while the yield potential is substantially higher. There are large yield ...
-
(University of Pretoria, 2022)This study examined the climatic-landscape-hydrological interactions in a catchment facing landscape fragmentation, agricultural intensification, and increased climatic risks. The study took a holistic approach by examining ...
-
(University of Pretoria, 2019-11)Water and nutrient management has a direct impact on yield, input-use efficiencies of crops, and is crucial to the ecological sustainability of production. Moreover, water-use efficiency (WUE) and nutrient-use efficiency ...
Now showing items 1-12 of 12