That was my point. What we see today in conventional farming is just what your grandfathers did "on steroids". We've become really good at farming, so the depletion happens significantly faster.
For every product that leaves the farm, it takes something from the ground. Some can be amended with legume plants, but minerals will deplete at some point - adding them yearly is responsible farming.
For every product that leaves the farm, it takes something from the ground. Some can be amended with legume plants, but minerals will deplete at some point - adding them yearly is responsible farming.