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nutrient film technique

21 years ago

can anyone gimme some information about this technique.

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Comments (2)

DRKboss
21 years ago
Try the book
"The ABC of NFT"
by
Dr. Allen Cooper.

He invented it.
baci
21 years ago
ÂUntil you get CooperÂs bookÂ

The slope & flow rate is supposed to be important with NFT systems so the roots can absorb the nutrients.

The slope should be about 3 inches per 100 ft.

http://www.oznet.ksu.edu/library/HORT2/MF1169.PDF

Nutrient flow should be 2-3 liters per minute.

http://www.agnet.org/library/article/eb329.html

The ends of the channels also need to be well drained or organisms can grow in them.

You will also need to watch your nutrient temperature & monitor &/or protect your plants from algae. Your desired nutrient temperature will depend on what you are growing.

NFT is not a difficult system. I am growing strawberries in an NFT system, & although their entire root system is not exposed to the stream & I do not have my flow & angle correct yet, they are doing very well. Some sites suggest placing streams at different levels along the NFT gulley to increase oxygenation, but I have a well aerated tank instead.
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