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Topic: soil
Definition:

  • the state of being covered with unclean things the part of the earth's surface consisting of humus and disintegrated rock material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)
  • "the land had never been plowed"
  • "good agricultural soil" the geographical area under the jurisdiction of a sovereign state
  • "American troops were stationed on Japanese soil" make soiled, filthy, or dirty
  • "don't soil your clothes when you play outside!"

    Related tag cloud:

  • water
  • environment
  • plants
  • garden
  • environmental
  • gardening
  • agriculture
  • compost
  • fertilizer
  • organic
  • landscaping
  • groundwater
  • flowers
  • plant
  • engineering
  • horticulture
  • geotechnical
  • trees
  • conservation
  • testing
  • remediation
    • Resources:

    Soil Association
    Campaigning for organic food and farming and sustainable forestry. Site includes extensive document library covering organic issues.
    http://www.soilassociation.org/

    Soil Science Society of America
    Aims to advance the discipline and practice of soil science.
    http://www.soils.org/

    Soil and Water Conservation Society
    A non-profit, scientific and educational organization of professional conservationists.
    http://www.swcs.org/

    Soil Science
    Publishes primary research reports and critical reviews of basic and applied soil science. Fully searchable abstracts from past and current volumes plus one full text article per issue. Manuscript preparation and submission instructions. Advertising rates and subscription information.
    http://www.soilsci.com/

    DiscoverySchool
    Offers educational resources for students and teachers. Includes educational games, a directory of homework help sites, lesson plans, and a free clipart gallery.
    http://school.discovery.com/

    ScienceDirect
    Research papers published on the net , subscription required for some sections.
    http://www.sciencedirect.com