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Spray herbicides to clean
Two-thirds of the seedlings were killed after the farmer, Long Xiaosheng, sprayed dimethoate on the seedlings of the early rice to be inserted. The author's on-site inspection showed that his family's seedlings were killed by herbicides. It turned out that a few days before applying pesticides to seedlings, Long Xiaosheng sprayed Roundup herbicides with sprayers. After the spraying, he did not clean the sprayer. The Gunda herbicide solution remaining in the sprayer was sprayed on the seedlings, causing the seedlings to be killed. It is understood that similar phenomena have occurred in various places. Therefore, peasant friends should pay attention to it. At the moment, weeding with chemical herbicides such as Roundup, Glyphosate, GaiSuoNeng and WeiBa in the countryside is a lot. After spraying these herbicides, the sprayer is used to spray other pesticides to prevent and control rice diseases and insects without cleaning. The residual herbicide solution in the sprayer will cause phytotoxicity to the seedlings. The sprayer can be cleaned by the following method. The cleaning method is to use hot alkaline water at 60°C (no alkaline detergent available) for 2 to 3 hours. During the soaking process, the conduit, spray bar, and showerhead should be filled with lotion. Shake every 10 minutes. After the lotion is poured out, rinse it again with clean water so that the sprayer, nozzle, and conduit are flushed with liquid, and rinse it repeatedly 2 or 3 times.