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Terra Preta's Own Slash-and-Char Technology: A Laboratory Look
in IfEnergy, on September 24, 2006
Terra Preta soils are produced when charcoal is produced using the soil. The traditional way of making charcoal from wood involves high-intensity (nearly) anaerobic fires. Wood is piled neatly into rows in a hole dug from the earth. It is set aflame and is covered with other materials to k...