1.4Q series straw chopper is driven by 100-120hp tractor 2.It can chop of stalks such as corn,cotton,sorghum 3.Delivered timel 4Q straw chopper4Q series straw and stem chopper is driven by 22-72.5kw tractor for integral mounted operation,it can chop of crops such as corn sorghum,cotton and wheat ect,erecting or lying in the field and the choppered straws can be spread uniformly,so it is the ideal ...