不同的耕作方式和施氮量对辽北地区玉米产量的影响研究

Study on the Effect of Different Tillage and Nitrogen Application on Maize Yield in Northern Liaoning Province

本研究针对辽北地区玉米生产中传统垄作和施氮方式所带来的问题,以郑单958为试验对象,通过设置灭茬平作与传统垄作两种耕作模式处理,3个施氮水平,研究对比两种耕作方式和不同施氮水平对玉米产量及生长发育的影响,结果表明:灭茬平作栽培方式下比传统垄作出苗早1 d,生育天数长1~2 d。平作的耕作方式相比垄作能获得较好的产量,缓控释肥的方式要比一次性施肥能获得较好的产量。

This study aimed at the area of northern Liaoning corn production in the process of traditional mode and nitrogen,taking Zhengdan 985 as the test object,by setting the stubble the culture and traditional two cropping pattern processing,three nitrogen levels,study compared two kinds of farming methods and different nitrogen levels on the maize yield and the influence of growth and development,the results show that the stubble culture cultivation mode under the condition of 1 day earlier than traditional locations,birth number 1~2 days long.Compared with ridge tillage method,flat tillage method can get better yield and slow and controlled release fertilizer method can get better yield than single fertilization method.