Dicamba aqueous solution

Abstract

The invention relates to a Dicamba herbicide, in particular relating to a Dicamba aqueous solution and a preparation method thereof. The Dicamba aqueous solution comprises the following components in percentage by weight: 10-55% of Dicamba, 0.1-20% of rhamnolipid, 25-35% of a fourth component and the balance of water, wherein the fourth component is one or more of dimethylamine, isopropamide or sodium hydroxide. The preparation method comprises the following steps: after evenly mixing and stirring the Dicamba, the fourth component and water in proportion; then adding the rhamnolipid; and stirring to obtain the Dicamba aqueous solution. A biological surfactant is adopted by the Dicamba aqueous solution, so that the Dicamba aqueous solution is safer and more environmentally-friendly, and the production cost is lowered; after the Dicamba aqueous solution is applied, the weeding effect is ideal, and the Dicamba aqueous solution has the advantages of wide weed killing spectrum, small dosage for each acre and prolonged quality guarantee period.

Description

A kind of dicamba water agent technical field The invention relates to a dicamba herbicide, in particular to a dicamba water solution and a preparation method thereof. Background technique The chemical name of dicamba is 3,6-dichloro-2-methoxybenzoic acid, which is a benzoic acid herbicide. Poaceae plants can quickly metabolize and decompose the drug after absorbing it to make it ineffective, so they show strong drug resistance. It is relatively safe for grass crops such as wheat, corn, millet, and rice. Dicamba disappears after being decomposed by microorganisms in the soil quickly. Generally, broad-leaved weeds will appear deformed and curly within 24 hours after use, and die within 15-20 days. Dicamba herbicides often contain synergistic chemical surfactants. However, the selected chemical surfactants either interact with dicamba, which increases the viscosity of the herbicidal formulation, or are generally incompatible with dicamba solutions. High viscosity liqui...

AI Technical Summary

Problems solved by technology

CN02135323.9 discloses a herbicidal preparation prepared by mixing dicamba and its salt with nicosulfuron in proportion and adding an adjuvant or carrier. However, the main components of the herbicidal preparation include nicosulfuron in addition to dicamba, Nicosulfuron is a systemic herbicide preparation, and the production cost of the new herbicide preparation by mixing the two herbicide preparations is relatively high and its herbicidal effect is average

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