What Is NFT Hydroponics?
NFT hydroponics is a method of soil-less cultivation where plant roots are suspended above a stream of continuously flowing nutrient solution that provides them with all the water, nutrients, and oxygen they need to sustain rapid, healthy plant growth.
The term “nutrient film” refers to the ideal situation of having a constant shallow stream of nutrient solution passing over the roots. This ensures that only the bottom part of the root mass will be submerged in the nutrient solution, while the upper part is left exposed to the humid environment created inside the growing chamber, thus providing the roots with an abundant supply of oxygen.
Providing plenty of oxygen to plant roots is one of the key concepts behind hydroponics. While plants need carbon dioxide for photosynthesis, their roots need oxygen to facilitate the absorption of nutrients. And when their roots have greater access to oxygen, plants grow faster.
