The concentration of irrigation liquid is regulated by manual flux adjusting valve in order to fulfill the proportion fertilizing of water-saving micro-irrigation & drip irrigation system.

• 灌溉液浓度通过标有流量示值的手动流量调节阀进行调节,从而实现节水灌溉微滴灌系统灌溉过程的比例施肥控制。