Egon Zunckel and his sons, Tyson and Carl, have been implementing conservation agriculture practices, especially no-till, on their farm’s commercial mixed grains operation since 1996. Yet they continue researching and experimenting with ways to improve on the delicate balancing act of increasing crop yields profitably while using natural resources, such as water, ever more sustainably.
The Zunckels’ 2 150ha farm, Rustenburg, lies 15km north-west of Bergville in KwaZulu-Natal. The family produces irrigated winter wheat on about 120ha in rotation with both irrigated and dryland summer crops, typically comprising two-thirds yellow maize and one-third soya bean.
South Africa’s largest wheat-producing region, the Western Cape, receives the bulk of its annual rainfall in autumn and winter, the growing season. By contrast, most of Rustenburg’s 50-year average annual rainfall of 850mm falls in…
