Is there scientific research showing increased
plant growth with applications of biochar?
Yes. Studies in both tropical and temperate climates have
demonstrated biochar’s ability to increase plant growth,
reduce leaching of nutrients, increase water retention,
and increase microbial activity. In a study done on a
Colombian Oxisol (a soil type also found extensively in
Hawai‘i), total above-ground plant biomass increased by
189 percent when biochar was applied at a rate of 23.2
tons per hectar