The Nutrient Film Technique (NFT) is a hydroponic growing method where a thin film of nutrient-rich water flows over the roots of plants. This technique allows for efficient nutrient absorption while providing adequate oxygen to the roots, promoting healthy plant growth. NFT systems typically use sloped channels to facilitate the flow of water, ensuring that the roots receive a consistent supply of nutrients.
In NFT systems, plants are usually supported in net pots or trays, allowing their roots to dangle into the nutrient film. This method is popular for growing leafy greens and herbs, as it maximizes space and minimizes water usage compared to traditional soil gardening.