进入冬季会经常出现阴、冷、风、雾、雨、雪等灾害性天气,影响棚菜生产,处置不当即造成重大损失。为此,下面介绍一下灾害性天气来临前、来临时和过境后的应急处理措施。1.低温来临前早预防①降低管理温度,实行低温炼苗,提高蔬菜抗寒能力。②喷施抗冻药剂,提高植株抗寒性。降温幅度较大时,可用医用维生素B1、B6和酰胺、青霉素等药剂 Into the winter will often appear Yin, cold, wind, fog, rain, snow and other disastrous weather, affecting greenhouse production, improper disposal that caused significant losses. To this end, the following describes the disaster before the advent of weather and the post-border emergency response measures. 1. Pre-low-temperature prevention ① reduce the management temperature, the implementation of low temperature hardening, improve the ability of vegetables cold. ② spray antifreeze agents to improve plant cold resistance. When the cooling rate is larger, available medical vitamin B1, B6 and amide, penicillin and other agents