Agronomist Wayne Smith has been behind some of the biggest shifts in Australian broadacre farming. In this episode, he joins Bill to unpack how no-till, better rotations, improved nutrition and smarter agronomy lifted WA cropping from two-tonne wheat to the high-yield systems farmers run today.

Wayne shares the breakthroughs that changed everything from zinc, copper and molybdenum diagnostics to the early disc-seeder revolution, stubble retention, deep roots and the move toward earlier sowing. He also reflects on the cultural resistance of the 80s and 90s, the “yeah-but” years, and the mindset shifts that helped WA growers become global leaders in no-till cropping.

A clear, honest and practical conversation for growers, agronomists and anyone wanting to understand why Australia’s grain yields have risen so dramatically.