The hydroponic system is a method of cultivation that uses no natural soil during the seed propagation period.In this period, need fixed irrigation nutrient solution, prevent disease caused by frequent soil use and salt accumulation. Meet the needs of plants for minerals,water, air and other conditions. The base material can be recycled. Hydroponics has the characteristics of water
saving, fertilizer saving, laboratory, etc. or saving, as well as big harvest and superior quality.