How to safely use herbicides in rice fields

(agricultural Wealth Network) how to safely use herbicides in rice field production to avoid drug damage, we should grasp the following points:

Choose the appropriate herbicide. Different herbicides should be selected in direct seeding field, seedling throwing field, transplanting field, seedling stage, tillering stage and other different growth stages. The use methods and requirements of each herbicide are different, such as some must have water layer, some can not have water layer, the specific operation should strictly follow the product instructions.

Master the appropriate period and dosage of medication. Weed seeds are sensitive to drugs when they germinate and just emerge, which is the best time to use drugs. Under the condition of ensuring the safety of rice, we should use medicine as soon as possible, and pay attention to avoid the sensitive periods such as young panicle formation and flowering stage, which are prone to drug damage. Use the medicine in strict accordance with the product instructions, and overdose is prohibited, otherwise it will cause drug damage.

Improve the level of pesticide application. In the process of spraying, it is necessary to achieve uniform spray, advocate fine spray, implement fan spray, reduce the phenomenon of leakage and re-spraying, and do not spray when blowing, so as to prevent herbicide damage caused by herbicide drift. After application, the equipment should be cleaned in time so that there is no herbicide residue. Promote the use of new application equipment to reduce the phenomenon of "running, running, dripping and leakage". It is best to spray herbicides with separate instruments.

Remedy the drug damage in time. Sulfonylurea herbicides such as bensulfuron-methyl are the most harmful herbicides and the most harmful herbicides in recent years. Safety application should be strengthened in production. Those who are lightly injured should be sprayed with brucellin lactone immediately to enhance the stress resistance of crops and strengthen fertilizer and water management at the same time. For serious victims, it is necessary to contact the technical department in time, pickle the soil, turn over deeply, and plant crops that are not sensitive to this kind of herbicides.

Phenoxy carboxylic acid herbicides such as 2-methyl-4-chlorine can be recovered in a short time by strengthening fertilizer and water management, spraying foliar fertilizer and regulating with hormones such as sodium sulfite and brassinolide. For the plots with heavy drug damage, deep turning and irrigation should be made in time, and crops that are not sensitive to this kind of herbicides should be replanted.

Paraquat and other bipyridine herbicides and glyphosate and other organophosphorus herbicides are insecticidal herbicides, which are prohibited to be used in the growing season of rice. When controlling weeds on the field bank, it is necessary to prevent drift from harming the seedlings. If only part of the leaves of the damaged seedlings have brown spots and the heart leaves are not dead, the loss of some leaves can be compensated by strengthening fertilizer and water management; for most of the leaves and heart leaves and the basic death of grain seedlings, crops should be replanted in time.