Late rice strips, bands and other non-uniformity are not strong. This is due to the excessive application of the herbicide quinclorac in the heading stage.
The rice leaves with a box-like heart and leaves. This is due to the use of dry soil herbicides such as flupirtine or quizalofop-p-ethyl for use in rice, and there are obvious signs of agricultural operations.
Rice leaves have significant burn spots. Around the field ridges, sometimes the old leaves of the seedlings have a lot of burn spots, and rough spots look like lesions caused by infectious diseases. In fact, they are phytotoxicity of herbicides. This is the use of the contact-killing herbicide, killing fields When the grass floats, it is moved to the seedling leaves.
Medicine harms prevention:
Clean utensils. In particular, sprayers that spray herbicides before they are sprayed with buds must be washed with organic solvents such as detergents to ensure that they do not contain unsafe chemicals.
Manage pesticides well. When distributors provide different pesticides at the same time, they should be packaged in different categories so that farmers can easily identify them. Farmers are also required to effectively classify pesticides for home purchases. If they are not literate, they can use effective and effective markers, selective non-selective herbicides, Insecticides, plant growth regulators, etc. are classified and stored to reduce the risk of using the wrong drugs.
If phytotoxicity has occurred, effective measures can be taken to reduce the phytotoxicity. Hormone herbicides can cause harm by spraying lime, ash, and activated carbon. Contact poison herbicides caused by injury, can spray gibberellin, application of quick-acting fertilizer, quicklime or plant ash to reduce injury. The damage caused by soil treatment agents can be plowed and watered to rinse the soil to reduce herbicide residues in the soil. For lands that have suffered less damage, field management can be strengthened, intensive cultivation can be performed to make the plants grow robustly, and the ability to resist phytotoxicity can be enhanced.
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