First the scrub or mallee roller was invented, which flattened the stumps and other vegetation, after which it would all be burnt and crops sown. The technique became known as "mullenising", as the invention of the device  was attributed to a farmer called Mullen.
The introduction of the scrub or mallee roller led to the development of a technique called "mullenising", where the device's creation was attributed to a farmer named Mullen. This method involved clearing the land, burning it, and then sowing crops.