May 13, 2010

Biochar: a partner to compost


Take a look at what could be the future of growing food.

Few people know how difficult it is to grow food in rainforests.  All that biodiversity on the surface is based on topsoil that is very thin.  How thin?  2 inches, and that disappears after 2 years of "slash and burn" growing.

So how did civilization spring up in the amazon? Biochar.  Excess wood, animal bones, and manure was burned in covered "kilns" that converted into a specific charcoal, biochar.

Today it is becoming much easier and sustainable to produce biochar from simple things like excess wooden building materials that would normally head to the dumpster.

How does it work in growing food?  Biochar sequesters carbon (helping lower carbon emissions), and is a porous structure (like a pumice stone) that allows for a lot more water and nutrients to become lodged in the charcoal, preventing it from being washed away.

So make sure to add some water and compost to the biochar so it can become enriched, then set it in your soil to boost your yield!