Universities, research agencies like the CSIRO and (Australian) state government departments are always looking for solutions but anything they find is gonna take a while to filter through. Biggest change in recent practices that I know of involve reducing the overuse of fertilisers/pesticides and protecting the waterways from contamination.
Edit: Permaculture/organic/etc farming practices are also starting to get a bigger foothold in the industry but I don’t see the big producers adopting them anytime soon.