Nutrient Film Technique (NFT) Hydroponic System For commercial growing, where high effectiveness is expected, nutrient film technique is most widely used these days. In the systems of this type plants grow in shallow channels, where the solution, enriched with nutrients, is circulated constantly all the day round. It is important to ensure shallow depth of circulating liquid, so that the plants’ roots receive enough oxygen as well.

Nutrient film technique or NFT can be used to grow a wide variety of vegetables, such as tomatoes and lettuce, and decorative plants as well. It is important to choose the proper trough for your NFT hydroponics system. This choice depends on the type of the plants, which are to be grown. In most cases 4 inches troughs are suitable, but if you plant to grow plants with large and extensive roots, it is reasonable to use larger troughs in order to prevent obstructions in nutrient flow and roots rotting. In commercial growing, troughs of larger sizes are commonly used.

Aeroponics Systems

Aeroponics exerts to mimic the natural environmental conditions, sometimes observed in Hawaii, where it is possible to see orchids growing in the trees thanks to the high level of humidity. This way of plants growing features much moisture and oxygen around the roots and in the grow room, which if arranged wisely promotes rich crops. 

The method ensures plants growing with the roots suspended in the air. They are continuously sprayed with high pressure sprayers, which task is to mist the plants roots with the tiny drops or particles of the nutrient solution. The latter contains high levels of oxygen due to the constant circulation.

Being the newest and the most miraculous way of growing plants, aeroponics systems is investigated and developed by NASA.