Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
11 May 2021 | Story Leonie Bolleurs | Photo Supplied
Dr Hlami Ngwenya believes that the UFS has a key role to play in Africa.

Dr Hlami Ngwenya, Lecturer in the Department of Sustainable Food Systems and Development at the University of the Free State (UFS), describes herself as a social scientist and global citizen – having worked in more than 50 countries, with more than 30 years of experience. 

She is equipping students to make a difference in their communities, whether it is here in South Africa, or in other countries in Africa where they reside and beyond. Dr Ngwenya joined the UFS in 2015, teaching the Advanced Diploma on Extension for Sustainability and the Master’s Programme on Sustainable Agriculture and Extension: Theory and Practice. 

Investing in farmers’ human capital globally

She has made major contributions to the field with her research work. In 2020, she contributed a chapter on ‘Food and Agriculture’ in the United Nations Development Programme (UNDP) report on COVID-19 Rapid Emergency Needs Assessment for the most vulnerable groups. In addition, she was part of a global study titled, Investing in farmers: Agriculture Human Capital Investment (AHCI) strategies, conducted in partnership with the International Food Policy Research Institute (IFPRI) and the Food and Agriculture Organisation (FAO Investment Centre).  

The latter study was conducted in nine countries in Africa, Asia, and Latin America. The aim was to improve the understanding of AHCI. The study also provides lessons learned from successful AHCI models around the world, with recommendations and guidelines for future investment that enhances the human capital of agricultural producers.

This year, she is working on a research paper titled, Demystifying facilitation of systemic change and the role of agriculture extension towards sustainable development and resilient food systems: analytical, conceptual and theoretical underpinnings.

Her input is also valued by paramount bodies in the industry, such as the Global Forum for Rural Advisory Services (GFRAS). Dr Ngwenya is a member of the GFRAS Consortium for Education and Training, and she is playing a significant role in terms of agricultural extension and advisory services at a global level. 

Global tool with local relevance 

She is also one of the faces behind the globally developed New Extensionist Learning Kit. Commonly known as NELK, this GFRAS product was created as a tool to augment and equip agricultural extension personnel with the functional skills relevant to managing the complexities of agricultural innovation and food systems. 

The UFS Department of Sustainable Food Systems and Development is one of the leading institutions globally that has adopted and adapted NELK as part of its curriculum. The South African Society for Agricultural Extension (SASAE) has also adopted the kit to contribute towards the continuous professional development of extension personnel. 

On the African continent, Dr Ngwenya has been a resource person for the African Forum for Agricultural Advisory Services (AFAAS) and supported the development of agricultural extension and advisory services fora at regional and national levels. 

Here on home soil, she continues to be involved with SASAE, supporting them in facilitating their strategic planning processes and professionalisation activities.

Spreading her wings beyond extension 

Beyond her active involvement in the agricultural extension field, Dr Ngwenya is a role player in other areas of agriculture globally. This includes agricultural policy, agricultural research, as well as agricultural education.  She brings all this knowledge and skills to benefit her students and the university. 

In her lifetime, she has had the opportunity to moderate more than 300 multi-stakeholder engagements, including strategic planning sessions, organisational development, team building, training, and conferences. These include high-level policy dialogues at United Nations level, the African Union Commission, and other continental and regional level organisations. 

Humbleness is empowering 

Although she had the chance to travel the world and engage at the highest level, she believes that it is important to be humble. She makes an effort to respect and cherish people for who they are, their cultures, and different systems. 

“One of the most valuable lessons I have learnt through engaging in many African countries, is that there is not necessarily co-relation between a country’s strong economy and human capital.” Despite the socio-political challenges that many countries go through (including ours), there are many genuine, hard-working, and intelligent people out there,” she says. 

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept