You should be seeing mycelium in your soil every year when you pull those plants out of the ground, Sometimes my friends will have mushrooms growing out of the top of there soil thru the straw mulch they use on the top. The Rhizopogon Vilocillus, Rhizopogon Luteolus, Rhizopogon Amylopogon and others is responsible for that and is not included in Microbe charge. It's not just about adding a product either, you need to keep that shit alive. If you are using that and feeding high phosphorous your killing whats in the soil even excess N can cause problems for the microbes. The Idea of regeneration farming is that you are taking the atmospheric gases and sunlight and your plant uses that to feed these microbes which do all kinds of things. Like fix nitrogen in the soil, build up humic acid, break down nutrients and protect the plant from invasive pathogens.