Biochar
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Biochar is a form of charcoal, sometimes modified, that is intended for organic use, as in soil. It is the lightweight black remnants remaining after the pyrolysis of biomass, consisting of carbon and
A pile of biochar
Biochar mixture ready for soil application
Artisanal biochar production in a Kon-tiki kiln
Smallholder biochar production with fruit-orchard prunings
Terra preta
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Terra preta, also known as Amazonian dark earth or Indian black earth, is a type of very dark, fertile anthropogenic soil found in the Amazon Basin. In Portuguese its full name is terra preta do índio
Biochar
…biomass with soil) in pits or trenches. It is not known if they intentionally used biochar to enhance soil productivity. European settlers called it terra preta de Indio. Following observations and experiments, one research team working in French Guiana hypothesized that the Amazonian earthworm Pontoscolex corethrurus…
Homemade terra preta, with charcoal pieces indicated by white arrows
Manantenina bushfire