推广一个水稻新品种要经过几年时间,掌握新品种的特性,也要有个熟悉的过程。只有掌握良种良法,才能充分发挥良种的增产潜力。因此,对当地应用的良种进行提纯复壮不仅是水稻种子工作的重要任务之一,也是促进大面积增产的有效措施。水稻片选就是一种简便的提纯复壮方法,群众容易掌握,见效快。稻种混杂不太严重的地区,只要经一年片选,稻种纯度就会有很大改观。 After a few years to promote a new variety of rice, to master the characteristics of new varieties, but also have a familiar process. Only by grasping the good law can we give full play to the yield potential of the improved seed. Therefore, the purification and rejuvenation of locally-applied elite is not only one of the important tasks of rice seed work, but also an effective measure to promote large-scale production. Rice chip selection is a simple method of purification and rejuvenation, the masses easy to grasp, quick. In areas where the rice varieties are less mixed, the purity of the rice varieties will greatly change as long as one year’s selection is made.