Maximum Yield USA 2014 February | Page 102

Analyzing nft Indoor horticulturists are now able to choose from a number of different hydroponic systems. Each system has its own advantages and disadvantages, but all aim to produce the same result: accelerated, healthy plant growth. A close examination of a hydroponic system is a great way for growers to determine if that particular system is a good fit for their personal goals and physical space/environment. By dissecting all the components that make up a nutrient film technique (NFT) hydroponic system, growers can not only gain knowledge about the way this system functions but also if, and when, NFT is a practical system for their gardening needs. The NFT Hydroponic System The idea behind an NFT system is to supply the plant’s roots with a continuous flow of nutrient solution through a series of trays or gutters. Some NFT systems are comprised of a single tray or gutter while others are made up of a series of each. To create a film of nutrient solution, these systems use a pump to deliver nutrients from a reservoir to the tray or gutter located at the highest point in the system. The trays or gutters are position