Mother Earth News, Feb/Mar 2009, has an article on Biochar. The technique they describe is not one I've seen before, and it looks easy.
Make Biochar — this Ancient Technique Will Improve Your Soil
Charcoal made from brush can increase your soil’s fertility and help slow climate change.
February/March 2009 By Barbara Pleasant
http://www.motherearthnews.com/Organic-Gardening/Make-Biochar-To-Improve-Your-Soil.aspx
Many of you might remember I wrote an article on Biochar last October, and here's the link for those who missed it.
Biochar: Good for your garden AND your carbon footprint!
http://davesgarden.com/guides/articles/view/1669/
I'm going to cross-post this on the Composting Forum, too...
More on Biochar...
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