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波尔多液是防治果树病害的一种常用杀菌剂,由于不同的果树对石灰及铜元素的敏感程度不同,因而必须配成相应的药液浓度,才能
Bordeaux mixture is a common fungicide for preventing and curing fruit tree diseases. Since different fruit trees have different sensitivity to lime and copper, they must be dosed with the corresponding liquid concentration