Move beyond NPK to understand the extraordinary biological community in healthy soil — and how to feed and foster it.
Commercial mycorrhizal inoculants are widely sold — but do they work? Review of the evidence, when they help, when they're wasted money, and how to support native populations.
A teaspoon of healthy soil contains a billion bacteria, miles of fungal hyphae, and thousands of other organisms. Learn what they do and how to feed them.
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