Herbicidal Composition Reducing Crop Injury via Low-Ratio PPO Inhibitor
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Solution Overview
Problem
Dicamba and its salts are used for weed control but often cause crop injury, and existing herbicidal compositions with PPO inhibitors do not effectively manage this issue at low weight ratios.
Innovation Solution
A herbicidal composition combining dicamba or its salt with a PPO inhibitor at a weight ratio of less than 1/2,000, specifically using saflufenacil, trifludimoxazin, flumioxazin, or other PPO inhibitors, applied to weeds or soil to reduce crop injury while effectively controlling weeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dicamba or its salts are used for weed control, then weed control effectiveness is improved, but crop injury increases
Solution Approach 1:
The patent introduces a PPO inhibitor as an intermediary substance that mediates between dicamba's weed control effectiveness and its harmful crop injury effects. The PPO inhibitor is combined with dicamba or its salts in a specific weight ratio (less than 1/2,000) to create a herbicidal composition that reduces crop injury while maintaining weed control effectiveness, thereby acting as a protective intermediary that modifies the overall effect profile of the herbicidal treatment
2Object-affected harmful factors
If a PPO inhibitor is combined with dicamba or its salt, then crop injury is reduced, but the complexity of the composition increases
Solution Approach 1:
The patent applies parameter changes by precisely controlling the weight ratio of PPO inhibitor to dicamba or its salt (less than 1/2,000, preferably from 1/2,000,000 to 1/2,000). This parameter optimization allows the composition to achieve reduced crop injury while maintaining practical simplicity in formulation and application, balancing the benefits of combination therapy with the need for ease of use
Data Source
AI summary
Provided is a herbicidal composition comprising a PPO inhibitor and dicamba or its salt, wherein the weight ratio of the PPO inhibitor to dicamba or its salt is less than 1/2,000. The herbicidal composition can effectively control weeds with reduced crop injury.