In Australia, there's a far greater yield benefit to be gained from farmers buying a deep-ripper/mulboard plough(break the hard pan and allow root growth), swit

In Australia, there's a far greater yield benefit to be gained from farmers buying a deep-ripper/mulboard plough(break the hard pan and allow root growth), switching to CTF(prevent a hard pan from happening again), switch to a no/minimum till system, spreading lime(correct soil pH) and maybe spreading clay (mitigate soil erosion). All of these practises are also "low-tech". You'd want to use VR maps to spread your lime[0], and possibly clay (although it's fair easier to pick out soil erosion by eye as opposed to varying pH), so it's probably not needed. Once you've sorted out the fundamentals, then it makes sense to start more precision ag. There's no point trying to grow a 5t crop when your roots can't even get down to the soil moisture. [0] Example VR lime maps, pick Lime from the available layers - https://hectare.ag/nooka https://hectare.ag/nooka