Green - An environmentalist community

Doubtful. Industrial agriculture is applying the same nutrients, but to the dirt. A large portion doesn't make it to the roots, and instead gets swept up and runs off into the water system.

Versus hydroponics, where the nutrients are added directly to the water which is applied directly to the roots and cycles back through the system repeatedly.

If the soil grows plants can be grown without fertilizer, you might have a point. But we have historically low topsoil, and most of it is less good quality. To continue with traditional/industrial agriculture, we need to start implementing regenerative practices, and that would take decades of active management across the entire sector to make a big enough impact.