The phytotoxicity can be generally divided into two categories: acute phytotoxicity and chronic phytotoxicity: First, acute phytotoxicity. The phytotoxicity occurs quickly and the symptoms are obvious. Generally, the spots appear on the leaves, the focus, the withering, the spots appear on the leaves, deformed, become smaller, the fruit is fruited, not strong, the petals are scorched, fallen, and buds; the plants grow sluggish, even the whole plant death. The second is chronic phytotoxicity. The symptoms are not obvious and it is not easy to judge in a short time. It is generally characterized by slow photosynthesis, dysplasia, tarnishing of leaves, delayed flowering, small and small flowers, pale flowers, and easy to fall flowers, which are very similar to the symptoms of nutrient deficiency. First aid measures are as follows:
If the sprayed water rinse method is sprayed with the wrong medicine, it should be sprayed with a large amount of water to wash the plants immediately; if the wrong soil treatment agent is used, it can be rescued by alternate methods of irrigation and drainage, and the quick-acting fertilizer can be applied after washing to promote the recovery of the damaged plants. .
Neutralization and mitigation method If the medicine is wrong, it is found to be more timely, and it can be neutralized by water after being washed by the scientific and technical personnel who understand the pharmacology. That is, the phytotoxicity of acidic pesticides can be neutralized by alkaline pesticides.
Spraying remedy for broad-leaved flower plants, after the use of metformin herbicide, the leaves are whitened, 50% humic acid granules can be used, first dissolved with a little water, then 500 times liquid is sprayed, and sprayed one by one. After 3-5 days, the leaves gradually recover their functions.
The fusion detoxification method, such as spraying copper sulphate, can be sprayed with a concentration of 1% to 5% of lime to hydrolyze. It can be replanted for the lack of seedlings and strengthen management.
If the sprayed water rinse method is sprayed with the wrong medicine, it should be sprayed with a large amount of water to wash the plants immediately; if the wrong soil treatment agent is used, it can be rescued by alternate methods of irrigation and drainage, and the quick-acting fertilizer can be applied after washing to promote the recovery of the damaged plants. .
Neutralization and mitigation method If the medicine is wrong, it is found to be more timely, and it can be neutralized by water after being washed by the scientific and technical personnel who understand the pharmacology. That is, the phytotoxicity of acidic pesticides can be neutralized by alkaline pesticides.
Spraying remedy for broad-leaved flower plants, after the use of metformin herbicide, the leaves are whitened, 50% humic acid granules can be used, first dissolved with a little water, then 500 times liquid is sprayed, and sprayed one by one. After 3-5 days, the leaves gradually recover their functions.
The fusion detoxification method, such as spraying copper sulphate, can be sprayed with a concentration of 1% to 5% of lime to hydrolyze. It can be replanted for the lack of seedlings and strengthen management.
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