excited about some surfacing ideas on the production and use of charcoal as a
soil amendment and fertilizer.
long lasting carbon is found in soils. Some of this is simply charcoal,
presumably from forest and grass fires and has been there for centuries.
black soils have been found in the Amazon.
This soil was possibly man made.
Some scientists suggest it was deliberately produced by a variation of
slash and burn agriculture. These
soils are said to remain highly productive long after their formation.