Regenerative agriculture is another means with which to restore the land without pesticides or herbicides, with the additional benefit of sequestering nitrogen.
no tillage
diverse cover crops
in-farm fertility (no external nutrients)
no pesticides or synthetic fertilizers
multiple crop rotations
In other words, Regenerative agricultural is indistinguishable from Permaculture as a cultivation method.
I'm sure if we tried we could find ways to distinguish between what various people mean when they talk about "regenerative agriculture" or "Permaculture", but would it be a profitable use of our time?