Ignoring the labor costs, the organic methods only use more energy if you completely ignore the chemical energy harvested from natural gas to produce artificial fertilizer. It is just taking a shortcut of using chemical energy directly as a reagent, rather than burning the fuel and using that energy to create the same reagents from electricity. But at the end of the day, you still pulled natural gas out of the ground and released it on the surface of the planet the same as burning it. Using an organic fertilizer however would just be recycling energy that was already on the earth's surface rather than letting it rot away uselessly.
All that said, our current practices and facilities cannot recycle or produce enough non-fossil fuel fertilizer to support or agricultural practices.
In order to produce fertilizer renewably in an artificial way, ie draw it from the air and water in a chemical facility, we need to increase our energy usage in making fertilizer 10x or more over. Which essentially means we need near the current entire world's worth of energy production produced again, renewably, for the sole production of fertilizer.
All that said, our current practices and facilities cannot recycle or produce enough non-fossil fuel fertilizer to support or agricultural practices.
In order to produce fertilizer renewably in an artificial way, ie draw it from the air and water in a chemical facility, we need to increase our energy usage in making fertilizer 10x or more over. Which essentially means we need near the current entire world's worth of energy production produced again, renewably, for the sole production of fertilizer.