磷化钙产生磷化氢气体杀虫,是近年来防治仓庫害虫上推广的一种新药剂,目前来源較多,有土法生产的,有广西、重庆等地的产品等。纯度各不相同,如什邡土法生产的纯度有的8%,有的10%或20%。广西生产的有24%,25%的。由于用于实仓杀虫时间短,用药量沒有一个統一的規定,就我們来說,还刚开始使用,尚在摸素阶段,兼之纯度不一,用药量差別很大,如掌握不好,对效果影响也很大,为了使各粮站在推广使用磷化钙杀虫时,选用适当的用药量,达到杀治仓庫害虫的目的,特算出各种不同纯度的 Calcium phosphide produces phosphine gas insecticide, which is a new agent for preventing and controlling warehouse pests in recent years. At present, there are more sources and there are products from Guangxi Province and Chongqing Municipality. Purity varies, even if the purity of native soil production method 8%, and some 10% or 20%. Guangxi produces 24%, 25%. Due to the short time for real-time insecticide, drug dosage is not a uniform requirement, for us, has just begun to use, is still in the prime stage, and the purity varies, the dosage varies widely, such as poor grasp, The effect is also a great impact, in order to make each grain station in promoting the use of calcium phosphide insecticide, the choice of the appropriate dosage, to kill the purpose of killing pests, especially count the different purity