| I am curious about biochar. When you say that it makes soils very fertile, what exactly does that mean? Fertility might mean high generally in nutrients or high in certain nutrients or high in organic materials that release nutrients as they decompose. What is the situation with biochar? I imagine that the large surface area of the charcoal material perhaps lets it cling to certain nutrients that might otherwise leach out of the soil. If so, as I queried, which nutrients? I also imagine that the carbonaceous material that comprises biochar is very different from what we call "organic matter." It's mostly elemental carbon. As such, it would not readily feed soil microorganisms or confer any of the other many benefits of organic materials in the soil. I am curious as to your thoughts and any facts about biochar. Lee Reich, PhD Books by Lee Reich: A Northeast Gardener's Year The Pruning Book Weedless Gardening Uncommon Fruits for Every Garden Landscaping with Fruit On Mar 29, 2009, at 10:48 AM, Justin West wrote:
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