The application discloses a
crop root stubble crushing device for root stubble of a variable-direction
disc cutter combined with a magnetic type
spray tower, which comprises an outer shell body, the front part of the outer shell body is provided with a triangular connecting frame, a ground stubble
cutting mechanism is arranged in the outer shell body, and a ground root cleaning mechanism is arranged outside the outer shell body; the ground stubble
cutting mechanism comprises a first support, a second support, a motor, a
disc cutter and a camera, and the ground root cleaning mechanism comprises a magnetic type double-layer spray
pyramid and a deep scarifier; the camera is used for observing the ground stubble, the angle of the cutter is changed in parallel and perpendicular to the stubble according to the actual situation, efficient variable-angle stubble
cutting is realized, and the crushing effect is improved; the shape of the magnetic type double-layer spray
pyramid is designed based on the distribution characteristics of the ground roots, the frequency of soil turning and soil entering is reduced, the soil disturbance is reduced, the surface soil is not damaged during the operation of the shallow soil layer, the soil preservation effect is good, the
drug is used for accelerating the
decomposition rate of the roots, and the residual roots in the soil are cleaned.