1.We have more than 60years experiece in producing straw chopper 2.It can chop of crops such as corn,cotton,sorghum,etc 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 ...