Difference between straw crusher and stubble cutter: Straw crusher mainly rotates and cuts the material at high speed through the motor-driven blade; while stubble cutter mainly rotates and cuts the stubble cutter through the tractor's rear power output, which drives the stubble cutter. Number and shape of blades: straw crusher has more number of blades to achieve more efficient crushing; while stubble machine has a relatively small number of blades, but the shape of the blades is more special, which can be better adapted to different types and sizes of root stubble.