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Pioneering greenhouse gas research in South African rainfed agriculture

09 February 2024 | Story EDZANI NEPHALELA | Photo SUPPLIED

Dr Jerry Dlamini, lecturer and researcher specialising in agronomy within the Department of Soil, Crop, and Climate Sciences at the University of the Free State (UFS), is at the forefront of pioneering research in this field.

Greenhouse gas emissions represent a significant global concern, driving climate change on a massive scale. This concern is particularly pronounced in rainfed agriculture, where understanding and addressing these emissions are crucial for ensuring sustainable agricultural practices.

In South Africa, rainfed agriculture is vital in food production, contributing substantially to the nation's agricultural output. However, this sector also stands as a notable contributor to greenhouse gas emissions, primarily through activities such as livestock farming, fertiliser use, and changes in land use.

Dr Jerry Dlamini, a distinguished lecturer and researcher specialising in agronomy within the Department of Soil, Crop, and Climate Sciences at the University of the Free State (UFS), is leading pioneering research in this field. His current project, @CROPGas on X, funded by the European Joint Programme (EPJ), with a budget of R22 million, focuses on investigating the impact of various conservation agriculture interventions on greenhouse gas emissions, primarily targeting nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2).

This two-year project, which commenced in December 2022 and concludes in December 2024, is a collaborative effort between European and African universities and institutions, including Rothamsted Research (UK), University College Dublin (Ireland), University of Nottingham (UK), University of Poznan (Poland), British Geological Surveys (BGS), University of Zambia (Zambia), University of Zimbabwe, and Lilongwe University of Agriculture and Natural Resources (Malawi).

Dr Dlamini’s preliminary findings from the UFS Kenilworth Experimental Farm indicate that climate-smart agriculture interventions, such as legume rotation and no-till practices, have the potential to reduce the intensity of greenhouse gas emissions, particularly highly radiative gases like N2O.

“This is a significant finding,” Dr Dlamini noted, “as N2O has a global warming potential 100 times greater than CO2 over a 100-year horizon, meaning its impact on ozone depletion persists far longer despite being emitted in smaller quantities.”

Looking ahead, Dr Dlamini advocates for increased research efforts to quantify greenhouse gas emissions from South African croplands. He emphasises the importance of field-based measurements, akin to methodologies employed by other nations, to enhance the accuracy and effectiveness of South Africa's greenhouse gas inventories submitted annually to the United Nations Framework Convention on Climate Change (UNFCCC) and to devise effective mitigation strategies.

News Archive

TEDxUFS conference - the highlight of the university’s innovative calendar

2015-08-11

Mmusi Maimane, leader of the Democratic Alliance with co-organisers of TEDxUFS Bonginkosi Leeuw and Lerothodi Molete after his inspirational talk at the event.
Photo: Curtis Nhlamulo Mashimbye

This year’s TEDxUFS speaker lineup persuaded the audience unanimously to question the nature of reality. The Albert Wessels Auditorium on the Bloemfontein Campus was packed with about 200 attendees on Saturday 1 August 2015.

Speakers shared a multiplicity of profound theories and inquisitions, challenging society in general to think out of the box. Melody Mentz, Gil Oved, Ricardo Peach, Pamela Nomvete, Pepe Marais, Mmusi Maimane, Brian Kally, Pieter Geldenhuys, Philippa Tumubweinee, Gareth Cliff, and Angelo Mockie took on to the stage to tackle multidisciplinary concepts as part of the broad ‘Ask Why’ theme.

Innovation mouthpieces share their worldview

Pieter Geldenhuys, the internationally-renowned futurist and Director of the Institute for Technology Strategy, and Innovation proposed that we change our mindsets by neglecting predictability. “We need to look at different models to understand the world around us,” he said. He challenged the linear and familiar ways humans make sense of the universe.

Speaking to the dire need for transformation, Philippa Tumubweinee suggested that university spaces merge with the communities they serve in terms of policies, social atmosphere, and physical structure. Tumubweinee is a senior Lecturer at the Department of Architecture at our university, and co-Founder and Director of Izuba In Africa architects.

“Only we can give permission to be intimidated; so don’t give in,” said Brian Kally, the CEO of Arrow Logistics (Pty) Ltd. Kally underscored the power of believing in our individual ideas.

Guidelines from TEDxUFS organisers

Bonginkosi Leeuw: “If you take your brainchild and implement it, and make it a reality, that’s when you can achieve great things, not before that.”

Lerothodi Molete: “You should ask questions; the moment you ask the question you will understand more.”

Real-time social media feedback

These are some of the comments audience members published on Twitter at the event:

IG: mispertanzy ?@MiesperTanzy Aug 1

A huge shout-out to @TEDxUFS for hosting such a great conference!The team has really made the event an unmissable one on the UFS calendar.

Celebrabitur? ?@HatsuMphatsoe Aug 1

Proximity that allows us to experience our broader society. Truly engaged by Philippa Tumbweinee's talk! @TEDxUFS

TEDxJohannesburg ?@TEDxJoburg Aug 1

A big shoutout to @TEDxUFS from for a fantastic event. Wish we were there.

RicardoPeach ?@ricardopeach Aug 1

Africa is rich with potential #TEDXUFS @MmusiMaimane Yes!

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