Oct 11, 2013 What Is The Deep Liquid Flow Hydroponics Technology, Which Features It
What is the deep liquid flow hydroponics technology, which features it?
Deep Flow Technology (DFT) is a hydroponics technique in which the roots of plants grow in deeper and more fluid layers. Planting tank in full bloom about 5-10 cm and sometimes even more deep nutrient solution, the crop root placed in which, while the intermittent use of water pumps make nutrient solution circulating fluid flow to supplement the nutrient solution of oxygen and nutrient solution nutrient More uniform. Deep liquid flow hydroponic facilities by the planting tank, planting net or planting plate, storage tank, circulatory system and other components. It is the earliest development can be carried out crop production of soilless cultivation techniques. In the course of its development, the world has done a lot of improvement, is an effective and practical, competitive hydroponic production types. It is widely used in Japan and has a larger usable area in Guangdong Province. It can produce tomato, cucumber, chili, chayou, loofah, melon and watermelon, as well as cabbage, Chinese cabbage, lettuce, Onions and other leafy vegetables, is more suitable for China's current national conditions, especially for the southern tropical and subtropical climate characteristics of hydroponic type. (1) the liquid layer of nutrient solution is deeper, the root extension is deeper liquid layer, each plant occupies more liquid, therefore, nutrient solution concentration, dissolved oxygen, pH, temperature and moisture content Are not prone to drastic changes in the root system provides a more stable growth environment. (2) plants suspended in the nutrient solution level, so that the root of the plant leaves the surface, and the roots can reach out of the nutrient solution, the root neck is immersed in the nutrient solution will decay and cause plant death , It should be done hanging plant work. (3) nutrient solution to flow. In order to increase the dissolved oxygen in the nutrient solution and eliminate the local accumulation of harmful metabolites in the root surface, eliminate the difference between the nutrient solution and the nutrient solution in the root surface and the root, so that nutrients can be sent to the root table in time to meet the needs of plants.