Dear Paul
Do you know if the char has been characterised well, or is it from the smoky stacks you described earlier? Thanks Crispin ++++++ Frank, Rice hulls biochar makes as excellent soil amendment, as numerous test have shown. Yields on rice, water spinach and other plants have increased roughly 3-fold in the trials that were done in Vietnam and Cambodia. If it is not the best biochar, I would be truly exciting to find something better. Paul Olivier
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