Galleries Gardening Tools and materials Gardener with biochar Gardener with biochar Gardener with a scoop of biochar pellet made from herbs using pyrolysis that can be used as a soil amendment or to make Terra Preta. License License this image from Alamy Keywords biochar biomass black carbon carbon capture charcoal fine-grained high-carbon pellets pyccs pyrogenic carbon pyrolysis scoop terra preta More from this shoot Gardener with biochar