1, cleaning prevention method
Immediately after spraying the herbicide in the wheat field, rinse the sprayer with clean water and wash the sprayer several times before spraying other pesticides to prevent the damage caused by the herbicide residue.
2, water spray cleaning method
If found in time, immediately spray clean water for cleaning, spray once every morning and evening, even spray 3-4 days, can effectively control the development of phytotoxicity, reduce the damage caused by phytotoxicity.
3, cultivating loose soil method
Carrying out cultivating loose soil, breaking soil compaction, enhancing soil permeability, promoting beneficial microbial activities, accelerating the decomposition of soil nutrients, enhancing the absorption capacity of roots for nutrients and water, allowing plants to resume growth and development as soon as possible, and reducing losses caused by phytotoxicity.
4, hormone relief method
After the occurrence of phytotoxicity, timely spray Qibao (Nine-O2) hormonal plant growth regulators to alleviate the degree of phytotoxicity and promote growth. The general spray concentration is 40ppm solution.
5, fertilizer and seedling method
After the occurrence of phytotoxicity, the growth and development of the plant is hindered, and nutrient supplementation should be given in time. First, foliar spray fertilizer can spray 500 times of dry land dragon or 600-800 times of Huimanfeng to quickly replenish nutrients; secondly, soil topdressing can apply 5-6 kg of urea per acre to promote plant growth. Reduce the degree of phytotoxicity.
More pesticide knowledge , please pay attention to China Pesticide Network
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