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.
It is understood that a large number of rural young and middle-aged laborers in the puffed food packaging machine are now turning to non-agricultural industries. It is difficult to meet the requirements of seed rushing and rushing in the busy season. Accelerating the development of corn harvest mechanization is imminent. China has also increased subsidies for corn harvesting machinery.
In the development of corn harvester products, the single-row knapsack corn combine harvester will be gradually eliminated. Multi-row (3~4) knapsack corn harvester will be the preferred model in recent years. The self-propelled corn combine harvester is the future. Mainstream models will occupy the mainstream market after 3 to 5 years.
The current mainstream model is a 4-line machine, and the granule packing machine will develop to a large-scale, specialized and intelligent model of more than 6 lines. In some suitable areas, the self-propelled direct threshing corn combine harvester is the ultimate development direction.
