[andscoop]

I think these numbers are from the more traditional way of farming.

At least one practitioner of regenerative agriculture, Gabe Brown, uses super dense grazing and frequent movement of the cattle to actually restore his soil health.

http://brownsranch.us/grazing/

If this sort of stuff interest you, I highly suggest his book, Dirt To Soil. It’s a light read with a lot of great information on regen ag.