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20世纪90年代中期以来,烟台市粮食种植模式发生较大变化,“冬小麦+套种夏玉米”方式逐渐被“冬小麦+直播夏玉米”方式所代替。夏玉米播种时如果土壤墒情不足,一般采取麦收后先机械直播,后浇“蒙头水”引苗出土。在玉米生长季节,又经常发生阶段性干旱,也要靠浇水来满足生长需求。随着农业水源日趋亏缺,玉米浇水难问题日益突出。为解决这一难题,烟台市农技部门总结生产实践中农民经验创造,经过试验示范,研究总结出麦收后开沟单粒
Since the mid 90s of the 20th century, the pattern of grain cultivation in Yantai has undergone great changes. The mode of “winter wheat + intercropping summer corn” has been gradually replaced by “winter wheat + live summer corn”. Summer corn sowing soil moisture if not enough, the general take wheat after the first mechanical live broadcast, after pouring “Mengtou water ” cited Miao unearthed. In the maize growing season, there are frequent staged drought, but also by watering to meet the growth needs. With the growing shortage of agricultural water sources, the problem of watering corn is becoming increasingly prominent. To solve this problem, Yantai Agricultural Technology Department concluded the production experience of farmers to create, after a pilot demonstration, the study concluded that after harvesting wheat harvesting single grain