Three-row corn harvesting header integrating straw picking, chopping and rubbing

In order to solve the problems that straw generated after corn harvesting operation is directly returned to the field and is difficult to decompose, the corrosion period is long, the environment is polluted by incineration and other modes, and the like, the invention discloses a three-row corn harvesting header integrating straw picking, chopping and rubbing, which comprises a harvesting device (A), a straw processing system (B), a power system (C), a header bracket (D) and an auger conveying mechanism (E). According to the method, the operation links are simplified, intermediate steps are omitted, the time cost is reduced, meanwhile, the operation efficiency is improved, and the situation that the field environment is polluted due to slow decomposition of straw directly returned to the field is avoided; the structure is compact, the size is small, and the trafficability of mountainous and hilly areas is improved; straw falling into a field can be directly picked up in the operation process, the secondary tre