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NFT system - plants lanky growth

Posted by gregnicolson none (My Page) on
Fri, Aug 15, 14 at 4:22

Hi all,
Looking for some help on a NFT system I have made. Its an indoor system, pump running 24/7. There are two sides, one against a wall, the other against the window, both have 4 levels and drain back to one reservoir. There are flourescent (single) tubes above each row (skywhite bulbs). Some of the lettuce against the window is quite 'lanky' with large internodes. It loks to me like low light issues, but am no sure. Also the window receives about 2 hours of direct afternoon sun, and an associated steep increase in air temperature. Problems seems worse against the window where there is more natural light, this is confusing me...


Follow-Up Postings:

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RE: NFT system - plants lanky growth

The window...note chard on the bottom is doing great...


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RE: NFT system - plants lanky growth -wall

Corriander, furthest from natural light on the wall side...seems to be fine...


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RE: NFT system - plants lanky growth

I tried the same , and found out that my twin fluoro grow lights were insufficient , and my plants grew very lanky.


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RE: NFT system - plants lanky growth

Thanks Robert, did you overcome the problem? Add more lights?


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RE: NFT system - plants lanky growth

I must confess I cheated and took them outside under the roof eaves and they took off.
I now raise all my seedlings under these lights indoors very successfully.
There must be others who can give more accurate information on the correct lighting, as I now grow outside under my deck which still gives sunlight but protects from rain


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RE: NFT system - plants lanky growth

Thanks Robert, did you overcome the problem? Add more lights?


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RE: NFT system - plants lanky growth

Thanks Robert, did you overcome the problem? Add more lights?


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