The longer I looked at this whole soil equation, the more I realized that it's just simply best if you tried to mimic the way the plant has been growing for the past several million years. The microbes already have this specialization. Worms produce the world's best plant food. The microbes and the worms provide the plants best defense against pathogens and insect predation.
In fact, my latest goal is to use all local soil amendments. I live in Michigan, and I'm building a large raised bed vegetable area on a couple acres. This will all be built from local amendments. Local mineral powder, local compost, local plants for teas. No guano from Indonesia, Not even Crabshell, No greensand.