Dr Henry Hopp
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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