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硫酸铜在农业方面的应用
硫酸铜在农业方面的应用
Application of Copper Sulfate in Agriculture
硫酸铜水溶液有强力的杀菌作用,可以用于杀灭真菌。与石灰水混合后生成波尔多液,用于控制柠檬、葡萄、苹果等作物上的真菌,配制波尔多液,硫酸铜和生石灰(最好是块状新鲜石灰)比例一般是1:1或1:2不等,水的用量亦由不同作物、不同病害以及季节气温等因素来决定。配制时最好用“两液法”,即先将硫酸铜和生石灰分别跟所需半量水混合,然后同时倒入另一容器中,不断搅拌,便得天蓝色的胶状液。波尔多液要现配现用,因放置过久,胶状离子会逐渐变大下沉而降低药效。
Copper sulfate aqueous solution has strong bactericidal effect and can be used to kill fungi. Bordeaux liquid is produced by mixing with limewater to control fungi on crops such as lemon, grape and apple. Bordeaux liquid is prepared. The proportion of copper sulfate and lime (preferably lump fresh lime) is generally 1:1 or 1:2. The amount of water is also determined by factors such as different crops, different diseases and seasonal temperature. When preparing, it is better to use "two-liquid method", that is, first mix copper sulfate and quicklime with half of the required water, then pour them into another container at the same time, stirring constantly, and then get sky-blue gelatinous liquid. Bordeaux liquid should be ready to use, because it is too long, colloidal ions will gradually become larger and sink, and reduce the efficacy.
稀溶液用于水族馆中灭菌以及去除蜗牛。

Dilute solutions are used to sterilize aquariums and remove snails.

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