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农药制剂的“三性”指其喷雾液的湿润性、悬浮性和乳化性,它们是可湿性粉剂和乳剂的主要质量指标。“三性”的好坏直接关系到药液的喷雾质量和防治效果。因此在大田喷雾之前,有必要先进行小量试配及检查,以便发现问题及早采取措施。 1.湿润性。用水配制喷雾液都应进行湿润性的检查。如果湿润性能好,药液易在作物及被防治生物的表面湿润和展着,减少药液流失,提高防治效果。湿润性的检查方法是:把配好的喷雾液放在盆中,摘取几片准备喷药的作物叶片(注意叶片应干并不要刮
The “nature” of pesticide formulations refers to the wetting, suspending and emulsifying properties of their spray liquors, which are the major quality indicators for wettable powders and emulsions. The nature of the “three sexes” is directly related to the spray quality of the liquid medicine and the prevention and control effect. Therefore, before spraying in the field, it is necessary to carry out a small amount of test and inspection in order to find out the problems and take early measures. Wetting Water spray solution should be wetting inspection. If the wetting performance is good, the liquid is easily wetted and displayed on the surface of the crops and the organisms to be controlled, so as to reduce liquid loss and improve the control effect. Humidity of the inspection method is: with a good spray solution on the pot, remove a few pieces of crop leaves ready for spraying (note that the leaves should be dry and do not scratch