Herbicidal Composition Synergy for Broad-Spectrum Weed Control
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Solution Overview
Problem
Existing weed control methods using herbicides often lack the necessary efficacy to effectively manage a wide variety of weeds in agricultural fields.
Innovation Solution
A herbicidal composition comprising a specific combination of herbicides, including flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, fomesafen, and dicamba N,N-bis-(3-aminopropyl)methylamine salt, either alone or in combination with glyphosate, applied in specific weight ratios to achieve enhanced weed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single herbicide is used for weed control, then the application is simple, but the control effect on diverse weeds is insufficient
Solution Approach 1:
The patent combines multiple herbicides with different modes of action and spectral ranges into a single composition. Specifically, it merges a HPPD inhibitor (flumioxazin) with a auxin-type herbicide (dicamba N,N-bis-(3-aminopropyl)methylamine salt), and optionally with glyphosate, to create a synergistic formulation that controls both grassy and broadleaf weeds effectively while maintaining simple application procedures.
2Reliability
If multiple herbicides are combined to control diverse weeds, then the control effect improves, but the composition complexity increases
Solution Approach 1:
The patent creates a composite herbidal composition by formulating specific combinations of herbicides with defined weight ratios. The composition integrates flumioxazin (0.01-5% by weight), dicamba N,N-bis-(3-aminopropyl)methylamine salt (0.01-10% by weight), and optionally glyphosate (0.1-20% by weight), along with adjuvants and carriers, to achieve synergistic effects while managing formulation complexity through standardized composition ranges.
Solution Approach 2:
The patent optimizes the composition by specifying precise parameter ranges for each herbicide component. The weight ratios are carefully controlled: flumioxazin at 0.01-5%, dicamba N,N-bis-(3-aminopropyl)methylamine salt at 0.01-10%, and glyphosate at 0.1-20% when included. These parameter specifications ensure effective weed control while maintaining manageable formulation complexity.
3Adaptability or versatility
If a broad-spectrum herbicide combination is used, then the spectrum of controlled weeds expands, but the risk of crop damage increases
Solution Approach 1:
The patent applies local quality by targeting specific weed types with herbicides having selective modes of action. The HPPD inhibitor (flumioxazin) primarily affects broadleaf weeds through pigment disruption, while the auxin-type herbicide (dicamba N,N-bis-(3-aminopropyl)methylamine salt) targets specific broadleaf species through growth regulation. This selective targeting expands weed spectrum coverage while minimizing off-target crop damage through mechanism-based specificity.
Data Source
AI summary
To provide a technology for controlling weeds and the like. A herbicidal composition comprising at least one compound selected from Group A, and dicamba N,N-bis-(3-aminopropyl)methylamine salt has a weed control effect:Group A:a group consisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, fomesafen and a compound represented by the formula (I):