Fertilizer stirrer for melon and fruit planting and stirring method

The invention discloses a fertilizer stirrer for melon and fruit planting and a stirring method, and belongs to the technical field of melon and fruit planting. In order to solve the problems of single stirring direction and uneven stirring in different areas, a guide groove is formed in a lifting ring, the guide groove is slidably formed in an auxiliary assembly, stirring blades are arranged on the outer side of a rotating rod, and a motor works to drive a lifting block to horizontally ascend and descend in the direction of the auxiliary assembly and a lead screw. A rotating gear is arranged in a gear groove, gear teeth of the rotating gear are meshed with a rack, a rotating rod ascends along with movement of a lifting block and a lifting ring, the rotating gear is driven by the rack to rotate in the ascending process, and the fertilizer in different height space positions in the stirring barrel can be fully stirred through stirring blades; the four stirring blades in different directions can automatically r