Plant extract allelopathy testing device and testing method

The invention relates to the technical field of allelopathy testing devices, and discloses an allelopathy testing device which comprises a storage box, the bottom of the storage box is fixedly connected with ground feet, the front and back of the outer wall of the storage box are both fixedly connected with motors, and the output ends of the two motors are both fixedly connected with threaded columns. The ends, away from the motor, of the two threaded columns are rotationally connected with the storage box through bearings, threads are controlled to rotate through rotation of the motor, then the spraying mechanism is driven to move, the position of the spraying mechanism in the equipment is controlled, and operation of workers is facilitated. The pipelines for spraying allelochemicals and water of the equipment are arranged to be movable, the spraying range is guaranteed, meanwhile, the number of the pipelines is reduced to the maximum extent, the complexity of the pipelines is avoided, too many pipelines do