双季早稻的烂秧现象,是水稻生产中的一个重要问题。近几年来,由于各方面的重视研究及总结农民经验,对于防止烂秧取得了很大的成绩。但是直到目前为止,在不同的地方、不同的年度里,仍然存在着不同程度的烂秧现象。因此,对于培育壮秧和防止烂秧问题的研究,仍然具有特殊意义。至于烂秧发生后的挽救方法,近几年来虽看见过一些有关这方面的报导,但未见有比较系统的研究。在 Double season early rice rot seedling phenomenon is an important issue in rice production. In recent years, due to the importance of research and summary of peasant experience in all aspects, great achievements have been made in preventing rotten seedlings. But so far, different places and different years, there are still varying degrees of rotting phenomenon. Therefore, the study on cultivating strong seedlings and preventing rotting seedlings still has special significance. As for the method of saving after the occurrence of rotten seedlings, although some reports on this have been seen in recent years, no systematic study has been found. in