北方寒地玉米制种综合配套技术是在玉米制种基本技术基础上,进行技术创新,并与其他多项辅助技术有机结合而形成的。宁安农场通过该项技术的应用,突破了北方寒带玉米制种无霜期短、积温不足的瓶颈,解决了常规玉米制种方法存在的三大难题,所生产的玉米种 North winter maize seed production comprehensive supporting technology is based on the basic technology of maize seed production, technological innovation, and with a number of other supporting technologies formed by organic combination. Through the application of this technology, Ning’an Farm has broken through the bottleneck of short frost-free period and insufficient accumulated temperature in the cold-blooming maize in the north and solved the three major problems in conventional seed production methods. The maize varieties