It is necessary to carefully observe the growth of the crop within 3 days after the application of the pesticide , especially the use of some herbicides, plant growth regulators and phoxim, and the gluten-free field. If phytotoxicity is found, emergency measures should be taken as soon as possible to reduce the damage caused by the phytotoxicity.
1. If the spray is neutralized and the phytotoxicity is caused by acidic pesticides, some quicklime or ash may be applied. If the phytotoxicity is strong, it can also be sprayed with 1c/o bleaching powder. For the phytotoxicity caused by alkaline pesticides, amino acid fertilizers such as ammonium sulfate may be added. Regardless of the phytotoxicity, foliar application of 0.1c/o--0.3c/o potassium dihydrogen phosphate solution, or 0.3c/o urea solution plus 0.2c/o potassium dihydrogen phosphate mixed spray can significantly reduce the damage caused by the phytotoxicity.
Second, spray water leaching such as foliar and plant spray caused by phytotoxicity, found in a timely manner, can quickly use a large amount of water to spray the affected foliage, repeated spraying 2-3 times, and cultivating loose soil to promote root development to enhance crop recovery ability.
Third, drainage irrigation to remedy the phytotoxicity caused by some herbicides, proper drainage can reduce the degree of phytotoxicity. For example, if the phytotoxicity caused by chlorpyrifos is used, the field water should be replaced immediately in the initial stage, and intermittent irrigation and drainage measures can be used to alleviate or mitigate the phytotoxicity.
Fourth, fertilization to remedy the symptoms of foliar plaque, leaf edge coke or plant yellowing, spray planting plant growth regulators such as Cui Miao, Yunda 120, can also increase the application of fertilizer to promote plant growth and recovery.
5. Spraying Hormone Remedy For herbicides that inhibit or interfere with plant growth, after phytotoxicity, hormonal and other hormonal plant growth regulators can be sprayed to alleviate the degree of phytotoxicity. After the crop has caused phytotoxicity, comprehensive remedial measures should be taken according to the type of pesticide and the degree of crop damage, in order to reduce the harm more effectively.
6. The phytotoxicity caused by scientific drug crops is often irreversible, and the remedies are also relatively passive. It is extremely important to select the pesticide variety in advance, and strictly control the method of use and concentration. This is the root of preventing the occurrence of phytotoxicity.
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