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How to do phytotoxicity in cotton
In the process of growth and development of cotton, due to many types of pests and weeds, it is necessary to repeatedly and repeatedly carry out chemical control; once improper application, it is easy to cause damage to cotton, lightly affect the growth and development, severe plant abnormalities even death. The remedial measures after the occurrence of phytotoxicity in cotton are: Rinse. Most chemical agents are not washable. If they are found to be improperly treated, they can be immediately filled with water to spray on the stems and leaves repeatedly to flush out the remaining pesticides on the surface of the cotton plant. This will reduce the risk of injury. When flushing, the pressure of the sprayer Foot, the amount of water sprayed is greater. For the phytotoxicity caused by the cotton field and some herbicides that are applied with soil, the soil can be immediately irrigated and the residual pesticides poured into the deep layer of the soil. 2. Make up fat. Generally, it can reduce the harm caused by symptoms such as leaf spot, leaf edge scorch, and plant yellowing, etc., adding fertilizing material or foliar spray of green wind 95, Gaomeishi, plant power 2003, Tianda 2116, etc. Degree of damage. For example, if 2,4-dbutyl ester appears in the cotton seedlings, an appropriate amount of available nitrogen fertilizer can be traced to promote the development of leaves and leaves, so that the cotton plants can return to normal growth and development as soon as possible. 3. Chemical control. For some phytotoxicity caused by herbicides and plant growth regulators, plant growth regulators can be sprayed in a targeted manner and reversed after the phytotoxicity. If the cotton seedlings are damaged by 2,4-d, then spraying with 30-50ppm gibberellin solution will obviously promote the growth of the plants; if the cotton is damaged by Chlormequat, spray the "920" solution. Relieve phytotoxicity. 4. Thin tube. After the occurrence of phytotoxicity in cotton, prompt removal of chlorotic and metamorphosed foliage can reduce the penetration and transmission of pesticides in the plant; timely cultivating loose soil and appropriate application of phosphorus and potassium fertilizer can promote root development and increase the resistance of cotton plants. .