Got Dirt? The Art of Building Soil

edible Cape Cod
By Michelle Koch | July 13, 2009

Like Wallace, Eastham farmer Bob Wells amends his soil heavily with mulch and compost, but his unique twist is to add some biochar. Biochar is a solid charcoal made from plant material that is pyrolized, or burned in a nearly oxygen-free process until it’s reduced to pieces of what is nearly pure carbon. Wells crushes the biochar chunks, “usually by running them over with my tractor,” he says, and then stirs it into his compost before side-dressing his plants.
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