Hydroponics expert James McCaskill believes hydroponic gardening is well suited for urban gardeners because plants may be grown without soil, wherever you like. Plants are placed in a growing bed filled with gravel that fits on top of a trough or reservoir; a pump circulates water and nutrients. The grow bed and reservoir are connected by a hose, with a loop to prevent backwash, which would burn out the pump. A float valve shuts off the flow of water, preventing overflow. Filters prevent small particles from damaging the pump motor. A cover plate covers the front access chamber, and a timer regulates the system. Plants for hydroponic gardens should be purchased at a hydroponics suppliers or grown from seed in sterilized grow blocks. Plant them directly in the gravel-filled grow bed by scooping away the gravel and burying the grow block.
RESOURCES :
The Hydroponic Society of America
Home Harvest Garden Supply Online
Hydroponic Gardening: The Magic of Modern Hydroponics for the Home Gardener
Model: 0880071761
Author: Raymond Bridwell
April 1990
Beginning Hydroponics: Soilless Gardening: A Beginner's Guide
Model: 0894717413
Author: Richard E. Nicholls
May 1990
Running Press
Philadelphia, PA 19104
Phone: 215-877-1733
Fax: 800-453-2884
Email: support@runningpress.com
Hydroponic Home Food Gardens
Model: 0880071788
Author: Howard M. Resh
May 1990
Running Press
Philadelphia, PA 19104
Phone: 215-877-1733
Fax: 800-453-2884
Email: support@runningpress.com
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