Three achievements in rapeseed direct seeders and windrowers pass appraisal
Recently, 3 achievements in rapeseed direct seeders and windrowers led by the research team of the College of Engineering at Huazhong Agricultural University passed appraisal by the Hubei Provincial Department of Science and Technology. Luo Xiwen, academician of the Chinese Academy of Engineering and professor at South China Agricultural University, and Chen Xuegeng, academician of the Chinese Academy of Engineering and researcher at the Xinjiang Academy of Agricultural Reclamation Sciences, served as chairman and vice-chairman of the appraisal committee respectively. Zhu Ming, president of the Chinese Academy of Agricultural Engineering Research and Design, and Wang Hanzhong, director of the Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, attended the appraisal meeting. After appraisal, the expert panel concluded that all 3 technologies are at the international advanced level, with some at the international leading level. Experts said that China is a major rapeseed-growing country, yet the level of rapeseed mechanization remains low, and the mechanized sowing level of wheat in the middle and lower reaches of the Yangtze River is 37%, far below the national average of 87%. After the promotion and application of the 3 achievements, rapeseed (including wheat) planting will take a solid step forward on the road to full mechanization.
The short-distance precision seed-metering technology for rapeseed and the precision seeding technology for both rapeseed and wheat have reached the international leading level.
The head of the research and development team introduced that the 2BFL-6 central centralized centrifugal rapeseed precision combined direct seeder, powered by a medium-sized tractor, integrates and innovates multiple technologies including precision seeding of rapeseed, traction combined furrow opening, rotary tillage and stubble cleaning, soil covering and pressing, and active drive of the seed and fertilizer device, achieving combined precision seeding operations for rapeseed. The overall research achievement is at the international advanced level, among which the branch-valve multi-stage splitting technology fills a domestic gap, and the central centralized centrifugal rapeseed seed-metering technology is at the international leading level.
The 4SY-1.8 rapeseed windrower, powered by a high-clearance Dongfanghong 400H or above tractor, is a rapeseed windrower developed with integrated combined conveying technology for both lateral and longitudinal conveying and full hydraulic power drive. The technical performance indicators and operation quality of this achievement meet the requirements of rapeseed windrowing, and it is suitable for segmented harvesting operations of rapeseed under different planting methods, different varieties and different regions, among which the combined conveying technology of the windrower is at the international leading level.
The 2BYM-6/8 rapeseed and wheat combined direct seeder, powered by a large or medium-sized tractor, integrates and innovates multiple technologies including single-grain precision seeding of rapeseed, precision drilling of wheat, traction combined furrow opening, rotary tillage and stubble cleaning, soil covering and pressing, profiling drive, closed-loop weed control, and variable-rate seeding, achieving combined precision seeding operations for both rapeseed and wheat with one machine. It is suitable for rapeseed and wheat sowing in rice-rapeseed and rice-wheat rotation planting areas, among which the short-distance precision seed-metering technology for rapeseed and the precision seeding technology for both rapeseed and wheat have reached the international leading level.