目前,我国农药的剂型种类还比较少,生产和使用的大多是适合于喷雾的剂型,其中以乳油和可湿性粉剂为主;悬浮剂也有相当产量。从药效上分析,这三种剂型是有些差别的。第一,杀虫剂的乳油效力要显著高于悬浮剂和可湿性粉剂,同一种农药有效成分以选用乳油为好。叶面喷雾用的杀菌剂, At present, pesticide formulations in China are still relatively few, most of the production and use are suitable for spray formulations, including emulsifiable concentrates and wettable powders; suspending agents have considerable yield. From the pharmacodynamic analysis, these three formulations are somewhat different. First, the effectiveness of insecticides EC significantly higher than the suspending agent and WP, ​​the same pesticide active ingredients to choose EC as well. Fungicides used for foliar spray,