Make it long and 2 A 4 chlorine control wheat field weeds, the high temperature requirements are not high?

US Dow AgroScience made it 20g/L fluoproxil EC as fluopoxetine preparation. The temperature after application had an effect on the herbicidal properties of the two herbicides, fluoxetine and 2A and 4Ch, and the high temperature was conducive to the exertion of efficacy. The temperature was low and the weeding performance was slow. It is generally required that the average daily temperature be maintained above 10°C during application and after application to ensure weed control.

Tip: Both fluopyracetic acid and 2A 4 chlorine can be used at low temperatures. After chlorofluoropyrrolidone was applied normally during the cold period, although the symptoms of weed poisoning appeared slowly, the weeds would still die soon after the temperature increased, basically without affecting the control effect; Tribenuron was applied during the low temperature period. In the case of fluoxetine, the addition of 2A and 4C could accelerate the rate of weed death. When the minimum temperature is lower than 2°C, do not apply these two drugs in general. Otherwise, the growth of wheat seedlings may be adverse.

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