Market demand for corn harvest
At present, the national corn machine broadcast level reaches 60%, while the machine harvest level is only 6.8%. The machine harvest level has become the bottleneck restricting the whole process of corn mechanization. Corn harvesting and straw treatment have become the most arduous manual labor for farmers in the northern region. According to the statistics of relevant departments, artificial harvesting (including picking and cutting and transporting straw) requires at least 5 working days/mu. According to 30 yuan / working day, the harvest cost of corn is at least 150 yuan / mu. Many local farmers burned corn stalks, causing serious environmental pollution.