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21 February 2024 | Story Leonie Bolleurs | Photo SUPPLIED
Bridging Knowledge Cultures
A group of academics from the University of the Free State (UFS) and the North-West University (NWU) contributed to a chapter in the book Bridging Knowledge Cultures in Rural Health Education, which was recently launched during an online event.

The Directorate of Community Engagement at the University of the Free State (UFS) celebrated the publication of a chapter in the book, Bridging Knowledge Cultures. This transformative book was edited by Walter Lepore, Budd Hall, and Rajesh Tandon, Unesco co-chairs of the Unesco Chair in Community Based Research and Social Responsibility in Higher Education.

Chapter 10 of the book – ‘Bridging Knowledge Cultures in Rural Health Education’ – was contributed by a group of academics from the UFS and the North-West University (NWU). The UFS contributors included Dr Karen Venter, Head of Service-Learning in the Directorate of Community Engagement; Alfi Moolman, former coordinator in the same department; and Dr René Walter Botha, Coordinator for Community Based Education and Rural Health in the Faculty of Health Sciences. From the NWU, the contributors included Prof Lesley Wood, Extraordinary Professor in Community-Based Educational Research; Beatrix (Bibi) Bouwman, Director for Sustainability and Community Impact; and Prof Hendri Coetzee, Extraordinary Associate Professor in the North-West University’s COMPRES research unit.

Identify knowledge differences/gaps

According to Dr Venter, the study conducted in the Xhariep District was considered a unique context for an in-depth exploration of participants’ subjective experiences to identify knowledge differences/gaps, and recommendations to bridge them. She states, “The aim of the initiative was to improve health outcomes by establishing lifestyle groups to enable the sharing of health information among participants and thereby encourage sustainable, accountable lifestyle practices.” 

Three questions derived from the case study were discussed during the launch: Who has the right to create knowledge? Who decides if knowledge is valid? And who will have access to the knowledge?

Other case studies included in the book also explored the dynamics of equitable research partnerships, providing practical recommendations to overcome obstacles and forge effective collaboration between academia and diverse communities.

Embrace the richness of diverse perspectives

Dr Venter believes that the launch event inspired the next generation of researchers and professionals to embrace the richness of diverse perspectives and knowledge cultures.

To access the rest of the case studies, including those from Indonesia, Malaysia, and India, you can download the book here. Access the discussion on YouTube here.

Parallel to the book, a guide was launched: Bridging Knowledge Cultures: A Guide for Community Practitioners and Community Organisations. You can access a copy here.

News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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