Nutrient Film Technique (NFT)

nutrient film technique (nft)

The Nutrient Film Technique (NFT) is a hydroponic system, in which the plants sit in a grow tube (slightly slanted) and a small amount of water runs over the roots, at set intervals. This water is pumped up from the reservoir and will run back down into the tank, before being pumped back up again.

More info on the NFT system 

greenhouse