Florida citrus farmers test on-site biochar production to cut burning and boost soil health

On a warm morning in Polk County, heavy equipment hummed through rows of citrus as a mobile carbonizer known as a “Tigercat” converted trees and grove debris into biochar — a porous, charcoal-like material that project leaders say could help hold water and nutrients in sandy Florida soils, reduce greenhouse emissions from burning, and even filter polluted water.