Terra Preta de Indio
Biochar Soil Management
Content: J. Lehmann
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Biochar - Visual Impressions

Experimental fields in the Llanos of Colombia, showing maize growth with 0, 8 and 20 t/ha (from left to right) biochar dry matter applied two years before the photo was taken (Photo: J. Lehmann).

Experimental fields in Upstate New York after application of biochar (Photo: C. Hyland)

Experimental fields with different rates of biochar applied to a Colombian savanna soil
(Photo: J. Major).

Unraveling the secret why biochar is so effective,- the lab at Brookhaven National Laboratories.