1. Technical aeration technique is old. The air by the blower or air. The oxygen in the water is very similar to the aeration control fish. This technique is the circulation of water or aqueous solution.2. Technical water circulation. This technique is similar to techniques of air, but principle is different. Providing oxygen into the water on water circulation or nutrient solution plants.3. Technical ligament ft (Nutrient, Flow Technique NFT) is a technique with water or solution circulation. The principle that the roots of plants must be immersed in trough flat, with the tilt of 1 - 3 and water or solvent plant nutrient flows through a thin layer plate In accordance with the time limit. To root to the moisture and oxygen is appropriate.4. Technical spraying root techniques with water circulation. Plant roots not immersed in water or solution but raised up in the cabinet plant as a darkroom and maintain moisture with spray from the nozzle placed periodically.5. Technical plant to feed the animals. A technique of crop to feed such as corn, wheat, sorghum is grown in the plant has to control the environment. The water or nutrient solution circulating water plants by injection atomization spray over the pickup or the water drops.
การแปล กรุณารอสักครู่..
