Gilman, veteran vegetable grower and policy director for the Northeast Organic Farming Association (NOFA), explains principles of soil fertility and weed management in organic farming in this guide which is part of an eight volume series (available individually and as a set) developed for farmers, homesteaders, and experienced gardeners transitioning to organic methods. Coverage includes soil habitat, sustaining fertility, the soil foodweb, crop nutrient availability and depletion, weed control strategies, ecological weed control, and weeding with machines. This edition is revised and updated from the editions published by the Northeast Organic Farming Association in 2000, 2001, and 2002. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)