湿害是指长期阴雨,土壤水分过多,造成根系缺氧,破坏了作物正常生理机能,根系活力减弱,生长发育受阻、产量锐减。我省东部地区小麦湿害较为突出,它已成为夺取小麦高产稳产的主要障碍。据研究,小麦湿害主要有三个时期,一个是苗期受湿害,次生根减少,初生根伸展受抑 Moisture refers to the long-term overcast and rainy, excessive soil moisture, resulting in root hypoxia, undermining the normal physiological function of crops, root activity weakened, growth and development blocked, the output dropped sharply. The wheat wet injury in the eastern part of our province is more prominent, which has become the major obstacle to the high and stable yield of wheat. According to the research, there are three main periods of wheat damaging, one is the wet seedling, the secondary root is reduced, the primary root stretch is inhibited