4IR and Water-smart Agriculture in Southern Africa: A Watch List of Key Technological Advances

The policy brief examines how 4IR technologies—specifically biotechnology, precision agriculture, and controlled-environment agriculture—can enhance water-smart farming in Southern Africa. It highlights the potential of CRISPR for drought-resistant crops, the use of remote sensing and AI for small-scale farmer decision-making, and the promise of vertical farming to bypass climatic limitations, while noting challenges related to energy efficiency and regulatory frameworks.

• Gene-editing technologies, specifically CRISPR, offer a faster, cheaper, and more accessible alternative to transgenic modification for developing drought-resistant cultivars and breeds, as they do not introduce foreign genes and are less controlled by a few large companies.
• Precision agriculture utilizing geospatial technologies, such as drones and satellites, allows for the detection of crop stress and the monitoring of soil moisture and nitrogen, which can be communicated to small-scale farmers via basic interfaces like SMS or USSD.
• Advances in connectivity, such as low-power wide-area networks (LPWAN) and satellite broadband, are addressing the cost and energy barriers that previously hindered the adoption of IoT and sensor networks for rural small-scale farmers.
• Controlled-environment agriculture, including vertical farming and hydroponics, can eliminate seasonal and climatic constraints on farming, though it is currently limited to niche crops and remains energy-intensive.
• The integration of AI and advanced data science is enabling new financial products for climate risk management, such as weather index insurance and risk pooling mechanisms like the Africa Risk Capacity (ARC).

APA

DU PREEZ, M.-L. (2020). 4IR and Water-smart Agriculture in Southern Africa: A Watch List of Key Technological Advances. South African Institute of International Affairs. https://saiia.org.za/wp-content/uploads/2020/09/Policy-Insights-91-du-Preez.pdf

Chicago

DU PREEZ, MARI-LISE. 4IR and Water-smart Agriculture in Southern Africa: A Watch List of Key Technological Advances. South African Institute of International Affairs, 2020. https://saiia.org.za/wp-content/uploads/2020/09/Policy-Insights-91-du-Preez.pdf.

Wikipedia

{{cite report |last1=DU PREEZ |first1=MARI-LISE |title=4IR and Water-smart Agriculture in Southern Africa: A Watch List of Key Technological Advances |publisher=South African Institute of International Affairs |date=August 2020 |url=https://saiia.org.za/wp-content/uploads/2020/09/Policy-Insights-91-du-Preez.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{dupreez20204ir, author = {DU PREEZ, MARI-LISE}, title = {{4IR and Water-smart Agriculture in Southern Africa: A Watch List of Key Technological Advances}}, institution = {South African Institute of International Affairs}, year = {2020}, month = aug, url = {https://saiia.org.za/wp-content/uploads/2020/09/Policy-Insights-91-du-Preez.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }