| http://www.w3.org/ns/prov#value | - they retain their nutrients and carbons, which are held mainly by the charcoal.This suggests that adding biochar could help other regions of the world with acidic soils to increase agricultural yields.Plus, Lehmann said, biochar could help reduce the amount of greenhouse gas emissions released into the atmosphere from the burning of wild lands to create new farm fields. (Learn how greenhouse gas e
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