Urban Agriculture is a movement towards growing and raising more food within densely populated areas of major cities. Today, about 15% of the world’s food is now grown in urban areas. Since space is limited in big cities, you may have noticed city gardens sprouting up in smaller spaces (like rooftops or apartment balconies).
This is an article by the organization Denver Urban Gardens about how to start one's own vermicompost system. It describes the benefits of using worms and worm castings in gardening, and also goes into detail as to how to maintain the health of your worms, the microbes, etc.
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