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This book explains briefly what biochar is, how to make it, and how to use it, with compost, to improve soil fertility.

Written and illustrated for MissionAssist, based on information from the public domain but also with help and encouragement from Jim Ellis-Jones and Paul Harding of Tropical Agriculture Association International
This edition published in the United Kingdom in 2025 by MissionAssist
Copyright © 2025 MissionAssist