I've been listening & taking notes from Master Organic Gardeners for over 20 years. They will tell you that the first thing when you use an organic program is to take that PH tester & all that NPK shit, and toss it away. For millions of years, Mother Nature has balanced out the soil. All that PH shit started with that Chemical Shit. After WW 2, the Military had all that fucking gun powder left over, they started using it for fertilize, not caring if the shit killed the microbial life in the soil, they still don't care. Anyway, that when the NPK shit begin, which is only 3 of 1,000 different things a plant needs, and the Chems fucked the PH up. Study all there is on dirtdoctors.com, and the experts will open your eyes for you, as they did me. And yes, the microbes, earthworms, fungi & bacteria, working in unisons will balance out your soil. Good Question.