怎样利用有限水源,提高单井灌溉效率,扩大稻田面积,是我国缺水的“三北”地区一季粳稻生产中急需解决的问题.北镇县窟窿台乡利用水(育苗插秧)旱(水稻旱种)稻搭配,在不增加水源情况下,种 How to make use of limited water resources, improve single-well irrigation efficiency and expand the area of ​​paddy fields is an urgent problem to be solved in the first season of japonica rice production in the “Three Norths” region, where water shortage is not available in our country. For instance, water (seedling transplanting) Seed) Rice with, without increasing the water case, species