Research progress on mechanization of soybean-corn belt composite planting

In order to fully leverage the advantages of soybean-corn strip compound three-dimensional planting technology, ensure the safety of grain and oil in China, and solve the contradiction of crop land competition, the research on supporting compound cultivation mechanization has become the primary link. This article starts from typical multi planting modes in China and summarizes the characteristics of soybean-corn matching cultivation machinery under inter regional intercropping technology. Around the stages of land preparation, stubble cleaning, fertilization, seeding, sowing depth, and seeding with cultivation machinery, the working principles of comparative cultivation machinery technology are elaborated. It is found that there are still problems in actual production, such as straw congestion, uncoordinated fertilization displacement and position, large coefficient of variation of sowing depth, and uneven seeding and implantation. A series of paths for improving soybean-corn composite cultivation machinery, including light disturbance, low consumption and clean stubble, prescription layered fertilization, variable control of seed and fertilizer electric drive, multi-sensor intelligent shaping seeding, and stable seed implantation, are proposed from the perspective of integration of agricultural machinery and agronomy, so as to promote green and efficient development.