How to grow hydroponic spring onions

Here is step-by-step description of growing green onions in a floating raft hydroponic setup:

How To Grow hydroponic spring onion (Scallion) - (Photo Tutorial) http://buff.ly/1fN2zMC

Related reading:

http://www.hydroponics101.com/sw_tips_GreenOnions.php
http://homeguides.sfgate.com/grow-green-onions-using-hydroponics-28877.html

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