Vegetable field herbicide composition and preparation method and use of water emulsion thereof

Abstract

The invention discloses a vegetable field herbicide composition and a preparation method and use of a water emulsion thereof. The water emulsion consists of the following components based on weight measurement ratio: 20 to 30g / mL of butachlor, 8 to 12g / mL of pendimethalin, 3 to 6g / mL of solvent, 3 to 5g / mL of emulsifier, 6 to 7g / mL of dispersing agent, 0.1 to 0.5g / mL of defoaming agent, and the balance of water. The water emulsion is prepared by the following steps: firstly dissolving the butachlor and the pendimethalin into a solvent; then adding the emulsifier and the dispersing agent and mixing into a uniform and transparent oil phase; mixing the water and the defoaming agent to form a uniform water phase; and shearing the oil phase in a high-shear dispersing mixer, simultaneously adding the water phase into the oil phase, and mixing uniformly to obtain the water emulsion of the vegetable field herbicide composition. The water emulsion of the vegetable field herbicide composition has the advantages of advanced and environment-friendly formulation, scientific and rigorous formula, functions of synergism and insecticidal spectrum extension, specialty in controlling weeds in Cruciferae vegetable fields, low harm to human body, livestock and plants, and safety for environment.

Description

technical field [0001] The invention belongs to the fields of phytochemical protection and pesticide formulation processing, and in particular relates to a vegetable field herbicide composition containing Butachlor and Pendimethalin and a preparation method of a new formulation water emulsion. Background technique [0002] Chemical weeding has become an indispensable and important measure in modern agricultural production because of its labor-saving, time-saving, fast weeding speed, and high efficiency. Due to the fertile soil and sufficient fertilizer and water in farmland, especially vegetable fields, weed damage is very serious. At present, there is a lack of herbicide products with good control effect and high safety in production. The use of a single species of herbicide cannot control many kinds of weeds, and has the disadvantage of a narrow herbicidal spectrum. Mixed use of herbicides can not only expand the range of herbicides, enhance the efficacy, but also reduce t...

AI Technical Summary

Problems solved by technology

At present, the dosage form of most pesticide products in my country is emulsifiable concentrate, and herbicides are no exception. For example, the single agent of the above two herbicides uses a large amount of xylene and toluene as solvents in the emulsifiable concentrate preparation, so it is flammable and volatile, polluting the environment, Harmful to human health, so more and more attention has been paid to research on new formulations of pesticides that do not use or use less harmful solvents