Fertilizer supplementing device for corn planting

The fertilizer supplementing device for corn planting comprises a base, a water tank is fixedly installed on the upper surface of the base, and a communicating pipe is arranged at the bottom of one side of the water tank; according to the water supply device for corn cultivation, through the arrangement of the transmission assembly, a servo motor is started during use, a pesticide is put in from a pesticide inlet, the servo motor drives a third rotating shaft to rotate, then a second rotating shaft is driven to rotate through transmission connection of a transmission belt and a rotating wheel, and the second rotating shaft drives a stirring roller to rotate, so that the pesticide and water in a water tank are stirred; by arranging a second rotating shaft, during use, a first rotating shaft is driven to rotate through transmission connection of a transmission belt and a rotating wheel, then a first gear rotates, the first gear drives a second gear to rotate, the rotating wheel is driven to rotate through a rot