NFT system - plants lanky growth

gregnicolsonAugust 15, 2014

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...

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gregnicolson

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

    Bookmark   August 15, 2014 at 4:32AM
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gregnicolson

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

    Bookmark   August 15, 2014 at 4:34AM
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robert_1943

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

    Bookmark   August 15, 2014 at 7:16PM
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gregnicolson

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

    Bookmark   August 16, 2014 at 1:31PM
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robert_1943

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

    Bookmark   August 17, 2014 at 3:35AM
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gregnicolson

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

    Bookmark   August 17, 2014 at 11:43AM
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gregnicolson

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

    Bookmark   August 17, 2014 at 11:55AM
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