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Starting a Worm Farm (aka vermicomposting or vermiculture)

Summary

Worms are present in all soil that has sufficient organic matter. A healthy soil should have at least ten earthworms in every square foot. Earthworms play an important role in the soil ecosystem. They are an essential part of healthy fertile soil. They are able to take organic material such as vegetable food waste, leaves, grass clipping etc. and produce organic humus in the form of castings. These castings have five times the nitrogen, six times the phosphorus, and ten times the potassium of most potting soils you would buy at a garden center.