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 lately 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 that expensive, it’s very user friendly, and it may be easily adapted to match 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. 世博 NFT Many hydroponics growers think that solution cultures are the sole true type of hydroponics. They say that whenever growers add solid growth mediums, they are adding nutrients to the plants in exactly the same way soil does. NFT on the other 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 disseminate across a flat surface at a level 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 should be placed close together to be able to enable the nutrients to more readily cling to the roots. The submersion pump will constantly recycle the water back in the system. And as the water will be constantly recycled, you will have to closely monitor the nutrient levels in the water.
The NFT technique does have several potential drawbacks which have to be addressed. For example the nutrients essential for the plants can cause damage to the submersion pump. If the submersion pump fails, or when there is an electric failure, your plants will not be getting the nutrients they need to survive. A comparatively short disruption in the pump can lead to accomplish failure in your plants.