Audrey Lewis wrote:Thanks for your follow-up on the corn, S Bengi. How do you go about turning dried corn into bio-char? Do you just put it in a pile and burn it, then spread it out over the field?
Eric Hanson wrote:Biochar is some interesting stuff and while you might be able to make use of it, it may be difficult on the timescale you are talking about. Biochar is made (or at least starts with) by burning wood in the absence of oxygen. You end up with a little carbon skeleton of whatever you put into the "fire." You can make charcoal by burning in a pit and then covering up, but this is a dirty, smokey and really inefficient process. In order to make biochar efficiently you will need a kiln. Eric