1. Strengthen the management of damaged and light plots. Timely cultivator plan should be used to re-apply available fertilizers, promote root development and leaf growth, and timely apply foliar 0.2% potassium dihydrogen phosphate to improve the plant's own recovery capacity. Foliar spray fertilization Po, high Mei Shi and other leaf fertilizer.
2. Replanting Seedlings and seedlings that suffered heavy damage should be checked for seedlings or transplanted seedlings in time. When seedlings are severely ridged and broken, they must be destroyed. Pre-destruction of residual drug hazards, such as changing soil, irrigation, using acidic or alkaline fertilizers, or changing crops that are not likely to produce phytotoxicity.
3, washing the plots of excessive spraying and misuse of pesticides, water washing and drainage can be used to reduce the hazards. Dryland crops are rapidly sprayed with the clean water on the victim crops, and more water is sprayed on the severe areas to dilute and flush out the pesticides.
4, spray safety agent Some substances have the effect of resisting a certain kind of pesticides, can reduce the toxicity of the sprayed pesticides, reduce the degree of plant damage. For phytotoxicity caused by copper sulfate, lime water with a concentration of 0.5% to 1% may be sprayed to detoxify. Due to the excessive use of organophosphorus and pyrethroid pesticides, it can be sprayed with alkaline substances such as lime water, detergent powder, soapy water, etc. from the surface of the leaves, or sprayed with ammonium bicarbonate solution. This will not only eliminate pesticide poisoning, but also provide the crop with nitrogen nutrition and promote growth and development. Spraying the safener must be appropriate, and if the concentration is too high, it will aggravate the damage.
5, growth promoters such as spray dildosonine, 2,4? D, paclobutrazol, etc. occurred phytotoxicity, can be sprayed in acres of high US 75 ml, fertilizer treasure 100 ml, watered 30 kg foliar spray.