Mechanical fertilizing device

The utility model relates to the technical field of mechanical fertilization devices, and discloses a mechanical fertilization device which comprises a vehicle bottom, a liquid fertilizer box is arranged on the upper surface of the vehicle bottom, and a liquid fertilizer valve, a liquid fertilizer device, a water inlet valve, a valve ball, a liquid leakage pipe, a fertilizer seat and a heating pipe are inserted into one side of the liquid fertilizer box. According to the utility model, the structure is reasonable, the liquid fertilizer box is connected with the liquid fertilizer device switch liquid fertilizer valve, liquid fertilizer is sprayed, the water inlet valve is connected with the liquid fertilizer box, the water inlet valve injects water into the liquid fertilizer box, the water is injected into the liquid fertilizer box, so that the valve ball blocks the liquid leakage pipe, and the water is prevented from entering the fertilizer seat to wet and damage the dry fertilizer; the fertilizer seat is con