小麦精播技术推广为啥困难从１９８９年起，正定县就开始推广小麦半精量机播技术。实践证明，在同样的品种、水肥、管理条件下。确实能够增产。但近两年在推广小麦精播技术中却步履艰难。分析其原因主要有以下几点：（１）宣传力度不够小麦是分蘖作物，多年的大播量（２２... Difficult to promote wheat precision broadcast technology Since 1989, Zhengding County, wheat began to promote semi-precision machine-sowing technology. Practice has proved that under the same variety, water and fertilizer, management conditions. Can indeed increase production. However, in the past two years, it has struggled to promote wheat precision broadcasting technology. Analysis of the main reasons are the following: (1) propaganda is not enough wheat is a tiller crop, years of seeding (22 ...