Development of 2BF-9 Wheat Seeder

In order to meet agricultural production needs of Chaoyang City, Liaoning Province, a wheat seeder has been designed, which could complete trenching, fertilization, sowing, and soil covering operations in one go．Field test results showed that sowing depth was 40 mm, row spacing was 120 mm, seedling width was 70 mm, and efficiency was 0.43 hm²/h．Its innovation was that sprocket was limited by sprocket positioning plate, and rear and front trencher frames were staggered on rear crossbeam．Its advantage was bandwidth of seedlings, simple structure and convenient adjustment．