First aid method for crop injury

When pesticides are used to control pests and weeds, due to improper application techniques, high concentrations, misuse, poor quality pesticides, etc. Therefore, according to the nature of pesticides and the extent of injury, the following “six laws” must be adopted for first aid. 1. Spraying pesticides and spraying pesticides caused phytotoxicity on the plants and leaves. It was discovered early, the victims were light, the agents did not infiltrate into the plants, and the affected plants could be quickly sprayed with fresh water or 0.5% lime water and sprayed repeatedly 3-4 times. Wash off part of the drug solution and accelerate the decomposition of the drug, and in combination with fertilizing loose soil, restore crop growth. 2. Irrigation and detoxification The phytotoxicity caused by some herbicides and some poisonous soils can be treated by drainage and irrigation or by serial irrigation, which can reduce the degree of injury. If dwarfism caused by the herbicide is used, irrigation and virus washing should be performed immediately after the initial period. Afterwards, the gap irrigation and chase-speed effect fertilizer can greatly reduce the degree of injury. 3. Supplementation and promotion of seedlings due to drug spraying leaves plant leaves, leaf edge scorch or plant yellowing and Other symptoms of injury, can be combined with cultivator loose soil, Mushi urea 5-6 kg, and appropriate application of phosphorus and potassium fertilizer, increase plant nutrition, promote The development of the root system allows the plants to quickly restore their vitality. The effect of reducing the degree of injury is quite obvious. 4. Spraying hormones can relieve regulators and herbicides used to suppress and interfere with crop growth. After the occurrence of phytotoxicity, they can spray hormone-like plant growth regulators to ease the extent of injury. For example, rapeseed, peanuts, etc. are heavily inhibited by paclobutrazol, which seriously affects growth. Spraying 0.05% of the “920” solution can be properly applied, and good results can be obtained. 5. In addition, pesticides with strong systemic absorptivity are used in the phytotoxicity part. Perfusion, injection, bandaging and other methods are often used on fruit trees. If phytotoxicity occurs due to high concentration, the branches that are heavily damaged should be quickly removed. , leaving no medicine segment to prevent the medicine from continuing to be transported and infiltrated, and promptly irrigating it to prevent the phytotoxicity from continuing to expand. 6. The ploughing and replanting injury is serious and most of the plants die. The first drying of the plots, the washing of the crops, and the subsequent ploughing, so that the residual pesticides in the soil have no effect, the crops are replanted. If localized phytotoxicity occurs, first flush with water, partially cultivating and reseeding and planting, planting seedlings after surviving, and apply a quick-release fertilizer to make the latter crop catch up with the previous crop and achieve balanced growth.

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