Herbicidal Composition Ratios for Weed Control Without Crop Damage
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Solution Overview
Problem
Existing herbicide combinations often fail to effectively control undesired plants while promoting the growth of useful plants, as they may weaken each other or cause damage to the useful plants.
Innovation Solution
A method involving the application of tiafenacil and at least one herbicidal compound from group A (S-metolachlor, metribuzin, pyroxasulfone, pethoxamid, tri-allate, or dimethenamid-P) in specific weight ratios, applied to areas with undesired plants or useful plants, to enhance herbicidal effects and promote growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing herbicide combinations are used to control undesired plants, then herbicidal effects are achieved, but the ingredients weaken each other and cause damage to useful plants
Solution Approach 1:
The patent applies parameter changes by optimizing the concentration ratio of tiafenacil to flumioxazin within the range of 1:0.8 to 1:1000. This specific parameter range resolves the technical contradiction by achieving effective herbicidal control while minimizing damage to useful plants, as the optimized ratio prevents ingredient weakening and reduces harmful effects on crops.
Solution Approach 2:
The patent uses composite materials by combining tiafenacil and flumioxazin in a specific ratio to create a herbicidal composition. This composite approach resolves the contradiction by synergistically combining the two herbicides to enhance effectiveness against undesired plants while reducing individual doses and minimizing damage to useful plants compared to using either herbicide alone.
2Reliability
If higher doses of herbicides are applied to ensure control of undesired plants, then herbicidal effects are improved, but damage to useful plants increases
Solution Approach 1:
The patent applies parameter changes by establishing the optimal concentration ratio range of tiafenacil to flumioxazin (1:0.8 to 1:1000). This parameter optimization allows achieving reliable control of undesired plants while minimizing damage to useful plants, as the balanced ratio prevents overdose effects and reduces harmful impacts on crops.
Solution Approach 2:
The patent uses an intermediary approach by introducing flumioxazin as a complementary herbicide that works synergistically with tiafenacil. This intermediary substance enhances the overall herbicidal effect, allowing reduction of individual herbicide doses while maintaining effective control of undesired plants and reducing damage to useful plants.
3Ease of operation
If single herbicide is used to simplify application, then ease of operation is improved, but herbicidal effectiveness is insufficient
Solution Approach 1:
The patent applies merging by combining tiafenacil and flumioxazin into a single herbicidal composition with a specific ratio range (1:0.8 to 1:1000). This combination maintains ease of operation as a single application while significantly improving herbicidal effectiveness against undesired plants, resolving the contradiction between simplicity and effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves effective control of undesired plants and promotes the growth of useful plants, reducing the dose of each ingredient and maintaining long-lasting herbicidal effects despite environmental factors.
Implementation Method 1
tiafenacil...a herbicidal compound which inhibits photosystem II of a plant
Data Source
AI summary
To provide a method for controlling undesired plants and promoting growth of useful plants, and a composition.A method for controlling undesired plants and promoting growth of useful plants, which comprises applying an effective amount of tiafenacil (a1) and an effective amount of at least one herbicidal compound (a2) selected from the compound group A described in the specification, to the undesired plants, to a place where the undesired plants grow, or to a place where the useful plants are cultivated.