A compound herbicide, its preparation method and application

By combining herbicides, the sensitivity of crops such as sorghum and sunflower to existing herbicides has been solved, achieving effective weed control on a variety of crops and environmentally friendly weed control, thus promoting sustainable agricultural development.

CN117322426BActive Publication Date: 2026-05-26JILIN ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN ACAD OF AGRI SCI
Filing Date
2023-09-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Crops such as sorghum and sunflower are sensitive to most herbicides and are prone to phytotoxicity. Existing herbicides are limited in variety and harmful to the environment. There is a need to develop new herbicides to replace atrazine, broaden the spectrum of weed control, and reduce the amount of herbicide used.

Method used

Compound herbicides, including combinations of metolachlor, nicosulfuron, and propyzoxystrobin or propyzoxystrobin, are optimized through different mass ratios and formulations for weed control in sorghum, sunflower, corn, potato, and rice fields. By combining the action mechanism of amide herbicides, the weed control spectrum is broadened and the residual period is reduced.

Benefits of technology

It has achieved effective weed control in sorghum, sunflower, corn, potato and rice fields, expanded the spectrum of weed control, reduced the amount of pesticides used, reduced the impact on the environment, and promoted the sustainable development of agriculture.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a compound herbicide, its preparation method, and its application, relating to the field of pesticide technology. The compound herbicide provided by this invention combines metolachlor or butachlor, nicosulfuron, and propyzoxystrobin or propyzoxystrobin. Through extensive experiments, the inventors discovered that these herbicides, with their different mechanisms of action and weed-killing spectra, not only have a synergistic effect when combined, but also broaden the weed-killing spectrum. Furthermore, all three have short residual periods, do not affect subsequent crops, and facilitate crop rotation. Under different formulations, it can be used in sorghum fields, sunflower fields, corn fields, potato fields, rice fields, etc., adding new agents and options for weed control, reducing pesticide application rates, and promoting sustainable agricultural development.
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