nóng yè / shàng / yǒu shí / yòng / liú suān tóng / pèi zhì / bō ěr duō yè / yòng yú / fáng zhì / bìng hài

农业上有时用硫酸铜配制波尔多液，用于防治病害。

In agriculture, copper sulfate is sometimes used to prepare Bordeaux mixture for disease control.