PPO-Glufosinate Herbicidal Composition for Synergistic Weed Control
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Solution Overview
Problem
Existing herbicides, particularly those inhibiting protoporphyrinogen oxidase (PPO), do not exhibit a remarkably excellent synergistic effect when combined with glufosinate at specific weight ratios, limiting their weed control efficacy.
Innovation Solution
A herbicidal composition comprising specific PPO-inhibiting herbicides such as flumioxazin, flumiclorac-pentyl, lactofen, carfentrazone-ethyl, sulfentrazone, tiafenacil, trifludimoxazin, or a compound represented by formula (I), combined with glufosinate or its salts, at a weight ratio of 1:150 to 1:700, for enhanced weed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PPO-inhibiting herbicides are combined with glufosinate at conventional ratios, then herbicidal activity is enhanced, but the synergistic effect is not remarkable
Solution Approach 1:
The patent applies parameter changes by optimizing the weight ratio of PPO-inhibiting herbicide to glufosinate within the specific range of 1:50 to 1:500. This precise parameter adjustment transforms the herbicidal composition from showing moderate enhancement to exhibiting remarkable synergistic effect, directly resolving the contradiction between reliable herbicidal control and synergistic efficiency.
2Adaptability or versatility
If a broad spectrum of PPO-inhibiting herbicides is used, then adaptability to different weeds is improved, but the synergistic effect with glufosinate remains limited
Solution Approach 1:
The patent applies universality by demonstrating that the optimized composition works effectively across multiple PPO-inhibiting herbicide types (flumioxazin, flumiclorac-pentyl, lactofen, carfentrazone-ethyl, sulfentrazone, tiafenacil, trifludimoxazin, and compound of formula (I)) while maintaining remarkable synergistic effect with glufosinate. This multi-functional approach allows broad weed spectrum control without compromising synergistic reliability.
Data Source
AI summary
Provided are a herbicidal composition having excellent control effect on weeds and a method for controlling weeds. The herbicidal composition comprising one or more PPO-inhibiting herbicides selected from the group consisting of flumioxazin, flumiclorac-pentyl, lactofen, carfentrazone-ethyl, sulfentrazone, tiafenacil, trifludimoxazin, and a compound represented by the following formula (I):wherein X represents CH or a nitrogen atom, and Z represents CH or a nitrogen atom, and glufosinate or a salt thereof, wherein a weight ratio of the PPO-inhibiting herbicide to the glufosinate or a salt thereof is 1:150 to 1:700.