Topdressing device for astragalus mongholicus planting

The invention relates to the technical field of topdressing devices, and discloses a topdressing device for astragalus membranaceus planting, which comprises a bottom plate, a fertilizer storage box is fixedly mounted at the top of the bottom plate, a cavity is formed in the fertilizer storage box, a hinge is fixedly mounted at the top of the fertilizer storage box, a box cover is fixedly mounted at the other end of the hinge, and a handle is fixedly connected to the top of the box cover. According to the topdressing device for astragalus membranaceus planting, through the arrangement of a first fixing ring, a leakage groove and a pesticide discharging opening, when the topdressing device is used, a sleeve and a movable plate move downwards, a second piston arranged on the surface of a movable rod is separated from a second circular groove, a first piston enters a first circular groove, and the first circular groove is blocked, so that fertilizer in a fertilizer storage box stops entering a through groove; th