近期,趟强寒潮自北向南侵袭我国中东部地区,将对柑橘生产造成不同程度雪害、冻雨、霜冻等低温危害。为积极应对不利天气,减少损失,农业部果树专家指导组研究提出技术指导意见如下。一、干旱果园冻前灌水土壤保持适度的湿润状态,有利于柑橘根系的生理活动。同时水的热容量大,可以吸收贮藏热量,在遭遇低温时,能减缓土壤和近地面空气温度的下降。冻前灌水可增加 Recently, the intense cold wave from north to south hit the central and eastern regions of China, will cause different degrees of citrus production snow damage, freezing rain, frost and other low-temperature damage. In order to actively cope with unfavorable weather and reduce losses, the Guidance Group of Fruit Tree Experts of the Ministry of Agriculture proposed the technical guidance as follows. First, dry orchards before freezing soil water to maintain a modest state of wetting is conducive to citrus root physiological activities. At the same time the heat capacity of water, can absorb the heat of storage, in the face of low temperatures, can slow down the soil and near-surface air temperature drop. Pre-freezing irrigation can increase