So they rediscovered orchards?
Growing food under a forest canopy with plenty of pruning, which creates healthy soil and less/no need for fertilizers. It's an effort to mimic a forest ecosystem and let things grow in their natural way (livestock is another aspect).
I guess if we get into something more mixed then that they haven't really rediscovered orchards, they've rediscovered permaculture!
I've mowed, raked, and baled a fair amount of hay over the years. This involves driving tractors and trucks around in fields pulling easily damaged implements in precise circles. Doing so in the presence of lots of mature trees seems a daunting task...