农户在长期用药过程中形成了一些习惯做法,但这些做法往往不妥当。笔者在这里提出来,希望能够引起大家的注意。 1.任意加大用水量 在使用农药时,有人认为配制农药水剂时,加大用水量可以使农药喷洒得更加均匀、周到,防效会更好。这种观点是片面的。因为过多地加水,使农药的浓度变得很低, Farmers have formed some customary practices in the long-term use of medicines, but these practices are often not appropriate. The author put forward here, hoping to arouse everyone’s attention. 1. Any increase in water consumption In the use of pesticides, some people think that when the preparation of pesticides, increasing the amount of water can make pesticides spray more uniform, thoughtful, control effect will be better. This view is one-sided. Because too much water, so that the concentration of pesticides become very low,