The NFT (Nutrient Film Technique) used to be popular among commercial and smaller scale amateur upcoming nft or amateur hydroponic prop. Its use has reduced among commercial prop in recent years mainly because new hydroponic techniques exist today that are better fitted to large-scale farming.
Amateur hydroponic prop however still use NFT often. It’s not that expensive, it’s very easy to use, and it can be easily modified to suit many different plant types.
The NFT is one kind of solution culture in hydroponics. Solution culture hydroponics involves the growing of plants without growth medium and without soil. Many hydroponics prop believe that solution cultures are the only true form of hydroponics. They say anytime prop add solid growth mediums, they are adding nutrients to the plants just as soil does. NFT on the other hand, treats the plants only with source of nourishment solutions served by the prop and delivered to the plants root system via water.
NFT Hydroponics Systems work by generating a constant water flow at the plants’ root systems which are stopped in a bath tub. The slow moving water solution is spread out across an appartment surface at a depth of approximately 1 to 3 in .. This low solution depth is constantly maintained to manufacture a source of nourishment film over the plant roots.
When setting up your own NFT system you will need a low, flat-bottomed bath tub and a submersion pump which keeps the water flowing over the plant roots. The plants should be placed close together in order to enable the nutrients to more readily cling to the roots. The submersion pump will constantly delete the water back into the machine. And because the water is being constantly recycled, you will need to closely monitor the source of nourishment levels in the water.
The NFT technique does have a few potential drawbacks which need to be addressed. As an example the nutrients required for the plants can affect the submersion pump. If the submersion pump fails, or if there is a power failure, your plants will not be getting the nutrients they need to survive. A relatively short trouble in the pump can lead to complete failure in your plants.