Dispersible oil suspending agent and preparation method thereof

Abstract

The invention discloses a dispersible oil suspending agent. The dispersible oil suspending agent comprises, by mass, 15-30% of pretilachlor, 3-6% of allylene oxadiazon, 1-3% of pyrazosulfuron-ethyl, 1-8% of dispersing agents, 5-15% of emulsifiers, 0.5-5% of wetting agents, 0.5-5% of thickeners, 0.5-8% of stabilizers, 0.2-2% of defoamers, 0.1-2% of pH regulators and the balance oil-base solvent. The dispersible oil suspending agent has the advantages that the dispersible oil suspending agent has low toxin on human, livestock and beneficial organisms, toxicity of effective components to chemical application persons can be reduced effectively, phytotoxicity of chemicals to target crops can be lowered, prevention effect of herbicide products on weeds and safety of the herbicide products on the crops are improved, and the dispersible oil suspending agent is a low-carbon, environment friendly and safe dosage form.

Description

technical field [0001] The invention belongs to the technical field of pesticides and relates to a herbicide product, in particular to a dispersible oil suspension and a preparation method thereof. Background technique [0002] Pretilachlor, chemical name: 2-chloro-N-(1-methyl-2-methoxyethyl)-N-(2-ethyl-6-methylphenyl)acetamide. It is a special herbicide for paddy fields with high selectivity. It is safe to rice and has a wide spectrum of weed control. It is suitable for controlling barnyardgrass, bald barnyardgrass, daughter, goosegrass, cow felt, Alisma narrow leaves, water amaranth, special-shaped sedge, broken rice sedge, clove Polygonum, bermudagrass and other annual grasses and broad-leaved rice weeds. Is a cell division inhibitor. It is usually used 3-5 days before transplanting. [0003] Oxadiargyl, CAS No.: 39807–15–3; Chemical name: 5-tert-butyl-3-(2,4-dichloro-5-(prop-2-ynyloxy) Phenyl)-1,3,4-oxadiazol-2(3H)-one), is a new type of oxadiazole nitrogen-contain...

AI Technical Summary

Problems solved by technology

[0005] At present, a single herbicide is limited by the safety selection of crop varieties. At the same time, the herbicide spectrum is not complete when used alone, and the occurrence of weeds in paddy fields cannot be completely and effectively controlled. Moreover, the weed resistance of a single herbicide is also serious.

Some herbicides are sensitive to different varieties of rice, or the field duration is too short, the dosage is too large, or the application is uneven, which may easily cause residual toxicity to the current crop or subsequent crops.

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