余松烈院士首创的小麦精播技术,自20世纪70年代发韧,至90年代达到推广顶峰。这项技术年增产小麦几十亿千克,并创出731千克的单产,为当时国内最高水平。董庆裕副教授在余松烈院士指导下发明的小麦宽幅精播机,自2006年开始推广,目前推广到省内各粮食生产重点县,并在江苏、河南、安徽、甘肃等 Academician Yu Songlian pioneered the technology of wheat precision broadcast, since the 20th century, 70 years toughening to the 90’s to promote the peak. This technology has yielded billions of kilograms of wheat and created a yield of 731 kilograms, the highest level in the country at the time. The wide-angle precision sowing machine invented by Associate Professor Dong Qingyu under the guidance of academician Yu Songlian has been popularized since 2006 and is now being promoted to key counties for food production in the province and has been widely applied in Jiangsu, Henan, Anhui and Gansu provinces