波尔多液是一种应用十分广泛的保护性无机铜杀菌剂,进入7、8月份以后,正是大量使用的季节。实践证明,要提高波尔多液的防病效果,应注意以下十方面的问题: 一、必须选用质量好的硫酸铜和生石灰作原料,以确保波尔多液的配制质量。二、配制时应将所需水量分成两等份,将硫酸铜和生石灰分别在两个容器中化开,并滤去残渣,待两 Bordeaux mixture is a widely used protective inorganic copper fungicide, into July and August, it is the season of extensive use. Practice has proved that to improve Bordeaux mixture disease prevention effect, should pay attention to the following ten aspects: First, you must choose good quality copper sulfate and quicklime as raw materials to ensure the quality of Bordeaux mixture preparation. Second, the preparation of the required amount of water should be divided into two equal parts, the copper sulfate and quicklime were opened in two containers, and filtered to remove residue, to be two