Water and fertilizer integrated quantitative topdressing device

The utility model discloses a water and fertilizer integrated quantitative topdressing device which comprises a vehicle frame, a support and a pushing piece, the pushing piece is arranged at one end of the vehicle frame and connected with the vehicle frame, the support is arranged at the top of the vehicle frame and connected with the vehicle frame, a storage tank is arranged at the top of the support and connected with the support, and the top of the storage tank is connected with the support. A water storage tank, a connecting pipe and a water inlet hopper are further installed on the frame, the water storage tank is connected with the frame, and the water storage tank is located on one side of a bottom support of the storage tank. Irrigation water and fertilizer are independently stored through the water storage tank and the storage tank, quantitative fertilizer only needs to be conveyed into the discharging pipe under the action of the quantitative assembly in the irrigation process, and then the irrigati