Self-propelled water and fertilizer integrated precise fertilization device

The invention relates to the technical field of fertilization, and particularly provides a self-propelled water and fertilizer integrated precise fertilization device, which comprises a walking mechanism; the water storage tank is arranged on the walking mechanism; the fertilizer stirring barrel is arranged on the walking mechanism; the water-fertilizer mixing pump is arranged on the walking mechanism, the water storage tank and the fertilizer stirring barrel are respectively connected to a liquid inlet pipe of the water-fertilizer mixing pump, and proportional valves are further arranged on connecting pipes between the water storage tank and the water-fertilizer mixing pump and between the fertilizer stirring barrel and the water-fertilizer mixing pump to control liquid inlet flow; the spraying unit is arranged on the walking mechanism, and a liquid outlet pipe of the water and fertilizer mixing pump is connected to the spraying unit; compared with a traditional water and fertilizer integrated fertilization