Hydroponic vegetable growth control system

The utility model discloses a hydroponic vegetable growth control system, which belongs to the technical field of vegetable hydroponics and comprises a culture box body, a culture tank is slidably connected in the culture box body through a lifting component, an air inlet component is arranged at the bottom of the culture tank, a filter plate is detachably mounted in the culture tank, and the filter plate is connected with the lifting component. A culture plate is slidably connected into the culture box body, a plurality of placement grooves are formed in the top of the culture plate, and the depths of the placement grooves in the vertical direction are different. According to the device, the air inlet assembly is arranged, the transmission gear drives the cam to rotate through the connecting shaft, the cam is matched with the spring and the telescopic rod to drive the extrusion plate to do reciprocating motion, the extrusion plate periodically extrudes the air bag, and the air bag discharges external air int