Biochar: Miracle or Gimmick?
...s. I’m always skeptical of what I call the “notions and potions” school of gardening. Every few years there is some new substance touted as the secret to a lush vegetable garden. One such substance is biochar, a kind of charcoal used as a soil amendment. The University of Minnesota Extension service is in the midst of a four year study to test the use of biochar in vegetable gardens. Preliminary results (which you can read here) show benefit for s...
