# Secrets of the Soil: New Solutions for Restoring Our Planet by Peter Tompkins and Christopher Bird

Explores scientific and mystical developments that renew and enhance the soil, among them rock dust fertilizer, biodynamic agriculture, and other highly unusual fertilizers.

## Details

- **Price:** 29.95 USD
- **Vendor:** The Josephine Porter Institute
- **Tags:** book

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.95 USD | In stock |

## Images

- Secrets of the Soil by Peter Tompkins and Christopher Bird
- Secrets of the Soil 422-page substantial paperback, three-quarter front view

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> Source: [The Josephine Porter Institute](https://www.jpibiodynamics.org/products/secrets-soil-solution-restoring-planet)
> Updated: 2026-09-01