The NFT (Nutrient Film Technique) was once commonly used among commercial and smaller scale hobbyist or amateur hydroponic growers. Its use has diminished among commercial growers in recent years for the reason that new hydroponic techniques exist today which are better suited to large-scale farming.
Amateur hydroponic growers however still use NFT often. It’s not too expensive, it’s very easy to use, and it could be easily adapted to suit many different plant types.
The NFT is one sort of solution culture in hydroponics. Solution culture hydroponics involves the growing of plants without growth medium and without soil. 世博 NFT Many hydroponics growers genuinely believe that solution cultures are the only true kind of hydroponics. They say that whenever growers add solid growth mediums, they are adding nutrients to the plants in the exact same way soil does. NFT on the other hand, treats the plants only with nutrient solutions prepared by the growers and sent to the plants root system via water.
NFT Hydroponics Systems work by generating a continuing water flow at the plants’ root systems which are suspended in a tub. The slow moving water solution is disseminate across a flat surface at a degree of approximately 1 to 3 inches. This shallow solution depth is consistently maintained to produce a nutrient film over the plant roots.
When setting up your own NFT system you will need a shallow, flat-bottomed tub and a submersion pump which will keep the water flowing over the plant roots. The plants must be placed close together in order to enable the nutrients to more readily cling to the roots. The submersion pump will constantly recycle the water back into the system. And since the water has been constantly recycled, you should closely monitor the nutrient levels in the water.
The NFT technique does have a couple of potential drawbacks which must be addressed. For example the nutrients necessary for the plants can cause damage to the submersion pump. If the submersion pump fails, or if there is an electrical failure, your plants will not be having the nutrients they have to survive. A somewhat short disruption in the pump can lead to perform failure in your plants.