Nutrient Film Technique

In this hydroponics growing system, plants are placed in a tray or gutter separate from the nutrient reservoir. One end of the tray is lower than the other, to encourage the flow of water.

A pump delivers a steady flow of water at one end, creating a constant stream of nutrient solution in the bottom of the tray. In order to make sure the water flowing through the bottom of the tray is nice and even, a layer of absorbent material (called capillary mat) is placed in the bottom.

NFT is another method that is both easy for the homemade hydroponics do-it-yourselfer and also a good choice for organic hydroponics growing systems. Once again the parts, the design, and the function are all simple. once again, there are no drip or spray emitters to clog.

There is one thing to consider, however. You must start with plants that have a root system large enough to hang down into the flowing nutrient solution. Your other option would be to top feed the plants with a drip system until their roots are large enough.

It doesn't matter what type of media you start your plants in. Once they are in place in the system, the roots will be growing right in the water! This system, when the proper hydroponics feeding tips are followed, works very nicely.