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Root's lettuce always under water for hydroponic
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Posted by kilimats (My Page) on Sat, Feb 16, 08 at 16:16
| In this video explaining how hydroponic lettuce are cultivate, we see that the roots of the lettuce is always under water, how does the roots breath ?
http://www.dailymotion.com/relevance/search/hydroponie/video/x2eypv_comment-cest-fait-laitue-hydroponiq_tech
i am confused
ps: they don't use bubble air because the water is calm |
Follow-Up Postings:
RE: Root's lettuce always under water for hydroponic
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| Likely the diffusers are producing very small bubbles. You don't see any turbulence but be assured they are aerating! Smaller you can get the bubbles, better oxygen saturation in the water. |
RE: Root's lettuce always under water for hydroponic
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| thank you for your explanation it make sense now! |
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