Quantitative fertilization device for oilseed rape

The utility model discloses a quantitative fertilizing device for rape. The quantitative fertilizing device comprises a base, the crushing mechanism comprises a crushing box fixedly connected to the top end of the base, and a crushing part is rotationally connected into the crushing box; the material mixing mechanism comprises a water tank, a stirring box and a stirring part, and the stirring part is rotationally connected into the stirring box; the water tank and the stirring tank are fixedly connected to the top end of the base and communicate with each other; the stirring box is located under the crushing box and communicates with the crushing box. The water sprinkling part is fixedly connected to the bottom end of the base; the flow speed control mechanism comprises a vertical pipe, a plugging block and an adjusting part, the two ends of the vertical pipe are fixedly connected with the stirring box and the watering part respectively, the stirring box and the watering part are communicated through the vert