Worms are important for anyone who does composting or wishes to have better soil for farm or garden. There are over 3,000 species of earthworms in the world, but only a very few that are important in the tillable soils of this country. Some common ones are discussed in this e-handbook. You'll learn facts about earthworms, the effects they have on soil nutrients and crop yields and how to build an earthworm population. 34 pages.

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