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1应用情况吉林省德惠市实施保护性耕作示范仅4年。2009年在边岗乡的双城村,示范了20hm2(300亩);2010年在边岗乡、大青嘴镇等5个乡镇进行了300hm2(4500亩)的示范推广;2011年扩大到全市16个乡镇、50个村示范推广,面积0.5万hm2(7.5万亩),效果非常显著;2012年全市保护性耕作作业面积近1.5万hm2(22万亩)。到2015年,德惠市计划实施面积要达到6万hm2(90万亩),占玉米播种面积的40%。2技术模式及技术内容德惠市玉米保护性耕作主要采用3种模式,宽窄行倒茬交替休闲平作、均匀行倒沟垄交替休闲平作和留高茬原垄浅旋灭茬免耕播种。
1 Application Dehui City, Jilin Province, the implementation of conservation tillage demonstration only 4 years. In 2009, a demonstration of 20hm2 (300 mu) was carried out in Shuangcheng Village of Biangang Township. In 2010, 300hm2 (4500 mu) demonstration and extension was carried out in 5 townships such as Benggang Township and Daqingzizui. In 2011, it was expanded to 16 A township, 50 villages demonstration and extension, an area of 5000 hectares (75000 acres), the effect is very significant; 2012, the city’s protective farming area of nearly 15000 hm2 (220000 acres). By 2015, Dehui plans to reach 60,000 hm2 (90 million mu) of land, accounting for 40% of the sown area of corn. 2 technical models and technical content Dehui maize conservation tillage mainly used three kinds of patterns, alternating wide and narrow row of casual Pingzhuo, even row ditch ridge alternate leisure flat and stay high stubble original ridge shallow rotation stubble no-tillage sowing.