Dear Avinash,
You can go through the following books:
1. Hydroponic Food Production by Howard M. Resh, Woodbridge Press Publishing Company, Santa Barbara, CA 93160.
2. A Guide for the Hydroponic & Soilless Culture Grower by J. Benton Jones, Jr., Timber Press, POB 1631, Beaverton OR 97075.
or u can visit the website:
http://www.comhydro.com
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himangshu