Serving the earth and environmental sciences, commercial agriculture and process industries. Since then, continuous efforts to establish common strategies and methodologies have been made. Test Methods for the Examination of Composting and Compost - Scientifically based laboratory manual that addresses all major composting parameters, from air capacity to pathogens to zinc. Includes test methods and sample preparation protocols for the analysis of all compost types, including MSW, yard waste, and biosolids composts. The National Soil Tilth Laboratory - USDA organization with mission to develop, evaluate, and promote management practices that enhance surface and ground water quality while conserving soil and water resources.
Site has software, selected publications, staff directory, and information on current research.
The Worldwide Soil Jumpstation - Resources on soil, soil science, and soil management. Huge list of links. Intended for agriculture and horticulture. The soil survey program helps people understand soils and their response to a variety of natural and human influences. Website contains useful information on conservation techniques for farmland and rural and suburban communities.