农药类型很多,其施用方法也各不相同,如果施用不当,极易引起药害或防治无效。下面介绍几种不同剂型的农药的特点和使用方法:一、粉剂。粉剂不易溶于水,一般不能加水喷雾,低浓度的粉剂供喷粉用,高浓度的粉剂用作配制毒土、毒饵、拌种和土壤处理等。粉剂使用方便,工效高,宜在早晚 There are many types of pesticides, and their application methods are also different. If they are not properly applied, they can easily cause injury or prevention and cure. The following describes the characteristics of several different types of pesticides and methods of use: First, the powder. Powder is not soluble in water, generally can not add water spray, low concentration of powder for dusting, high concentration of powder for the preparation of poison soil, bait, seed dressing and soil treatment. Powder easy to use, high efficiency, should be sooner or later