When it is found that the field after application of the pesticide is compared with the field without application of the crop, if the crop has yellowing, stem and leaf spots, growth stagnation, plant wilting, or abnormal symptoms such as malformation, it is necessary to analyze the phytotoxicity. The reason is to take appropriate remedial measures in a timely manner. The commonly used rescue measures are as follows:
1. Strengthen field management: For fields with seed damage or light damage to seedlings, it is necessary to strengthen field water and fertilizer management, properly supplement nitrogen fertilizer, and promote early seedling emergence. If the plant grows in the middle and late stages, it is necessary to carry out cultivating loose soil or artificial soil in time. Appropriate application of phosphorus and potassium fertilizer to promote root development and improve the recovery capacity of the crop itself. For example, after the medicinal damage caused by chloromeron, the wheat seedlings can be traced to human excrement or external fertilizer to promote the growth of the plants.
2, replanting or destroying: For the seeds or seedlings that are seriously damaged, it is necessary to timely check the seedlings for replanting or transplanting. If the seedlings are severely broken, take the method of destroying the seeds.
3. If it is soil treatment, or spraying pesticides caused by excessive pesticides or misuse of pesticides, immediately take measures to save water or drain to dilute pesticides and reduce phytotoxicity.
4, spray safety agent: spray safety agent, suitable for crop phytotoxicity caused by liquid pesticide spray. When the symptoms of phytotoxicity have just appeared, spray a proper amount of a safener that can reduce the toxicity of pesticides to crops and protect crops. If it is caused by misuse or excessive use of organophosphorus, inulin, carbamic acid, etc., it may be sprayed with 0.5% to 1.0% of alkaline substances such as lime water and soapy water. For detoxification, it is best to spray an alkaline fertilizer solution such as ammonium bicarbonate, which not only has a certain detoxification effect, but also has the effect of external fertilization to promote plant growth and development.
5, snorting hormone remedy: For the herbicides, plant growth regulators that inhibit or interfere with the gibberellin synthesis in plants, spraying gibberellin, chlorpyrifos or tianfengsu after the drug can alleviate the process of phytotoxicity.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
1. Strengthen field management: For fields with seed damage or light damage to seedlings, it is necessary to strengthen field water and fertilizer management, properly supplement nitrogen fertilizer, and promote early seedling emergence. If the plant grows in the middle and late stages, it is necessary to carry out cultivating loose soil or artificial soil in time. Appropriate application of phosphorus and potassium fertilizer to promote root development and improve the recovery capacity of the crop itself. For example, after the medicinal damage caused by chloromeron, the wheat seedlings can be traced to human excrement or external fertilizer to promote the growth of the plants.
2, replanting or destroying: For the seeds or seedlings that are seriously damaged, it is necessary to timely check the seedlings for replanting or transplanting. If the seedlings are severely broken, take the method of destroying the seeds.
3. If it is soil treatment, or spraying pesticides caused by excessive pesticides or misuse of pesticides, immediately take measures to save water or drain to dilute pesticides and reduce phytotoxicity.
4, spray safety agent: spray safety agent, suitable for crop phytotoxicity caused by liquid pesticide spray. When the symptoms of phytotoxicity have just appeared, spray a proper amount of a safener that can reduce the toxicity of pesticides to crops and protect crops. If it is caused by misuse or excessive use of organophosphorus, inulin, carbamic acid, etc., it may be sprayed with 0.5% to 1.0% of alkaline substances such as lime water and soapy water. For detoxification, it is best to spray an alkaline fertilizer solution such as ammonium bicarbonate, which not only has a certain detoxification effect, but also has the effect of external fertilization to promote plant growth and development.
5, snorting hormone remedy: For the herbicides, plant growth regulators that inhibit or interfere with the gibberellin synthesis in plants, spraying gibberellin, chlorpyrifos or tianfengsu after the drug can alleviate the process of phytotoxicity.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
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