[Manglano]

Too many variables. I would say, grow the most-energy dense, least land & water intensive crops possible. For the US my understanding is that that would probably entail GM corn, tepiary beans, and squash, on rotation or with companion planting, no till, dryland farming as much as possible.

But then there are economies of luxury and scale, people like fruit, and meat, and spices, and stuff which can't be grown nearby. People cultivate the jackfruit instead of maize, Brazil's trying to extirpate a "jackfruit infestation," and olive trees are sometimes considered "weeds" in Australia.

The Neolithic Revolution is bonkers, basically.

I'm not an experienced farmer, everyone's land is different, and just today I learned that there are parts of the world where bushland edibles are so plentiful that the locals see no reason to farm at all. So perhaps I should shut up now :)