许多地方葡萄栽培密度大,田间通风透气不畅,特别是一些采用田沟贮水栽培的果园,葡萄根系发育不良,夏季遇连续暴雨易发生气灼病,造成葡萄根系死亡、果皮青斑、凹陷变褐,果粒脱落。如果连雨后突晴,叶片蒸发量突然加大,则可导致葡萄 In many places, the viticulture density is high, and the fields are not ventilated and breathable. In particular, some orchards with water storage in fields and ditches are poorly developed in the root system of the grapes. In summer, the plants suffer from gas burns due to continuous heavy rain, resulting in death of grape roots, Brown, fruit fall off. If even clear after the rain, the sudden increase in leaf evaporation, can lead to grapes