近几年,有些农户播前没有精选种子,因而对一次播好种、拿全苗,实现“两高一优”有一定影响。种子没有精选的原因:一是在备耕中“细”字做得不够,基础措施不当,小看种子的精选作用,有的怕麻烦马虎而过。二是对种子精选技术没有掌握。由此所致,造成一些地块苗儿不全、不壮,结果造成粮食减产。 In recent years, some farmers did not select the seeds before sowing, and thus broadcast a good seed, take the whole seedlings and achieve “two high and one excellent” to a certain extent. The reason for the lack of selection of seeds: First, in preparation for cultivation, the characters of “fine” are not done enough. The basic measures are not properly taken care of, and the selective effect of the seeds is overlooked. Second, there is no grasp of seed selection techniques. As a result, resulting in some plots of seedlings incomplete, not strong, resulting in food production.