The use of herbicides in the low temperature period is not conducive to the exertion of the drug effect, and the lethality to weeds is low. Therefore, it is necessary to have reasonable methods and measures to improve the efficacy of the herbicides at low temperature. Xiaobian summarizes the following three points for you:
First, grasp the concentration of application.
Accurate water consumption, suitable pesticide concentration can improve the herbicidal effect to ensure uniform application and prevent phytotoxicity, so as to improve the herbicidal effect.
Second, choose the right weather and weather is important for the use of herbicides; low temperature and windy weather, is not conducive to the herbicide efficacy, only to apply during the winter, it is difficult to kill weeds, especially with isoproturon Herbicides, when used at low temperatures, may cause freezing damage to wheat seedlings. It should be applied to the time when the temperature of the sunny day is relatively high. At this time, the physiological metabolism of the weeds is relatively strong, which is beneficial to the conduction of the drug in the body, and the herbicidal effect is good.
Third, the addition of nitrogen fertilizer to improve the efficacy of the addition of nitrogen fertilizer can significantly improve the effectiveness of control. The mechanism of action is that urea and other fertilizers can reduce the tension and pH of the herbicide liquid surface and enhance adhesion.
I hope that Xiaobian's method can solve your problems and increase crop yield!
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