At Houston's farm, leaf-shaped sensors track the level of moisture on thousands of heads of lettuce.
General manager of Agriculture, Shaun Heidrich, said the system gives him "a digital map of conditions across the whole farm, allowing us to forecast, predict and plan in a way we’ve never been able to before".
"We’ll be able to make more accurate decisions around irrigation, pest control and harvesting," he said. (Source: Sense-T/University of Tasmania)