Pendimethalin is a selective pre bud dinitroaniline soil treatment herbicide. The pure product is odorless orange yellow crystal and is easily soluble in chlorinated hydrocarbon and aromatic hydrocarbon solvents. Stable to acid and alkali. The appearance of 33% shitianbu EC is orange yellow transparent liquid. It is stable under acidic and alkaline conditions. It is a low toxicity herbicide with no irritating effect on skin and eyes, high toxicity to fish and aquatic organisms, low toxicity to bees and birds, and no “three causing” effect on animals within the test dose. Pendimethalin is a contact killing soil sealing agent, which mainly inhibits the division of meristem cells and does not affect the germination of weed seeds, but plays a role after the drug is absorbed by buds, stems and roots during the germination of weed seeds. The absorption site of dicotyledons is hypocotyls and monocotyledons is buds. The symptoms of injury are the inhibition of the growth of buds and secondary roots. The drug has a wide spectrum of killing weeds and has a good control effect on a variety of annual weeds. Pendimethalin has a wide range of weeding in production. It is suitable for potatoes, rice, cotton, corn, tobacco, peanuts, vegetables (Chinese cabbage, spinach, carrot, garlic, onion, etc.) and orchard crops, and can prevent and control annual gramineous and broad-leaved weeds such as maltang, Dogtail grass, barnyard grass, purslane, quinoa, etc. The control effect on gramineous weeds is better than broad-leaved weeds, and the effect on perennial weeds is poor. Pendimethalin has good binding to soil. After application, it is usually quickly adsorbed by the topsoil to form a closed drug layer. After germination, the weed seeds in the drug layer are killed when they contact the drug; Weed seeds under the drug layer are easy to be killed when they absorb drugs when passing through the drug layer after germination.
For potato: when the northern potato is cultivated, the soil covered by the machine shall not be less than 3cm for soil sealing treatment. Generally, 33% pendimethalin missible oil per mu is 150 ~ 200 ml.
For paddy fields: southern rice area is usually used for spraying adorable rice seeds before germination, and soil closure treatment. Generally, 330 g / L pendimethalin missible oil is used per mu, 150 ~ 200 ml.
For soybean and peanut fields: for spring soybean and spring flower, use 200 ~ 300 ml of 33% missible oil per mu, 15 ~ 20 kg of water, apply medicine, mix soil after land preparation, and then sow. Summer soybean, summer peanut, 33% missible oil of 150~200 milliliters per mu, water 15~20 kg, 1~2 days after seeding topsoil spray, spraying too late, easy to cause phytotoxicity.
Post time: Nov-24-2021