NFT stands for nutrient film technique. It is probably the most popular
method of hydroponic growing. Its popularity is thanks to its
combination of ‘can’t go wrong’ simplicity and great results. NFT grown
plants typically produce 3 to 4x greater yield than those grown in soil.
In NFT nutrients are added to water and this solution is contained in a
tank. Plants sit on a grow tray above the tank and the nutrient solution
is pumped up to the grow tray and constantly flows over the roots of
your plants, constantly giving your plants the nutrients they need.
Whatever the plants don’t need drains into a tank ready to be passed
over the roots again.
The nutrient solution flows over the roots as a thin ‘film’ at only
1-3mm deep. The flow is quite slow, just fast enough so that the water
is in constant motion.
The only growing medium used is the rockwool that you started the plant
in.
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