The NFT (Nutrient Film Technique) used to be commonly used among commercial and smaller scale hobbyist or amateur hydroponic growers. Its use has diminished among commercial growers in recent years mainly because new hydroponic techniques exist today that are better suited to large-scale farming.
Amateur hydroponic growers however still use NFT often. It’s not too expensive, it’s very simple to use, and it may be easily adapted to accommodate numerous 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 believe that solution cultures are the only real true type of hydroponics. They say that after growers add solid growth mediums, they are adding nutrients to the plants in exactly the same way soil does. NFT on another hand, treats the plants only with nutrient solutions prepared by the growers and brought 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 spread out across a flat surface at a degree of approximately 1 to 3 inches. This shallow solution depth is constantly maintained to make a nutrient film over the plant roots.
When creating your own personal 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 to the system. And as the water has been constantly recycled, you will need to closely monitor the nutrient levels in the water.
The NFT technique has a couple of potential drawbacks which have to be addressed. Including the nutrients required for the plants can cause injury to the submersion pump. If the submersion pump fails, or if there is an electrical failure, your plants will not be getting the nutrients they have to survive. A comparatively short disruption in the pump can lead to accomplish failure in your plants.