小麦倒伏以后,茎、叶重叠,通风不良,湿度增加,光合作用减弱,呼吸作用增强,根茎折断损伤严重,影响养分向穗部输送,严重的基部腐烂。倒伏的麦子,瘪、病粒增加,不仅产量降低,而且品质下降。小麦倒伏减产10％～50％,倒伏的时间愈早,对产量的影响就愈大。因此防止倒伏是小麦高产栽培中的一项重要措施。 After the lodging of wheat, stems and leaves overlap, poor ventilation, increased humidity, reduced photosynthesis, increased respiration, rhizomes severely damaged, affecting nutrients to spike, severe basal decay. Lost wheat, deflated, increased grain, not only reduce production, but also decline in quality. The lodging yield of wheat is reduced by 10% ~ 50%. The earlier the lodging time, the greater the impact on the yield. Preventing lodging is therefore an important measure in high-yield wheat cultivation.