One hectar of land has to feed around six people ... with organic fertilizers you can't do that
There are cases of people growing 71 pounds of potatos by accident:
71 Pounds Of Potatoes By ACCIDENT!https://www.youtube.com/watch?v=Zs1lKDvyBDYI'm not certain how easy or difficult it would be to grow food for 6 people on 1 hectare of land, which is approximately 2.4 acres. I've never tried it.
Organic fertilizers have feedstock, production and transportation restrictions in contrast to chemical fertilizer.
The amount of cow manure that can be generated is restricted by the amount of grass and cows on hand. Transportation issues. While chemical fertilizers have no limits on production.
Organic fertilizer production could be scaled upward but it would take time.
There are already many transitioning to off grid permaculture living. To be effective, it could require people moving to rural areas where they have more space and land. Maybe the state could donate land to be developed into farmland on a volunteer basis. With sponsors pitching in to provide equipment and other necessities.