Nicotinamide Herbicide Composition for Selective Weed Control
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Solution Overview
Problem
Existing herbicides, including those with N-(tetrazol-5-yl)arylcarboxamide compounds, suffer from high treatment doses and lack selectivity for crops like wheat and corn, and do not effectively control various weed species.
Innovation Solution
A novel nicotinamide compound represented by Chemical Formula 1, or its agrochemically acceptable salts, is developed for use in herbicide compositions, exhibiting selective herbicidal activity against grassy weeds, sedge weeds, and broadleaf weeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing herbicides (N-(tetrazol-5-yl)arylcarboxamide compounds) are used for weed control, then herbicidal activity is achieved, but high treatment doses are required and crop selectivity is poor
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of existing herbicides - specifically introducing a nicotinamide core with tetrazole or triazole substituents at the 3-position and various arylcarboxamide groups. This structural parameter change results in compounds that achieve effective weed control at lower treatment doses while maintaining selectivity for cereal crops like wheat and corn, directly resolving the contradiction between treatment dose and crop selectivity
2Adaptability or versatility
If existing herbicides are used to control weed species, then some herbicidal activity is achieved, but various weed species are not effectively controlled
Solution Approach 1:
The patent implements universality by designing nicotinamide compounds with multiple functional groups (tetrazole/triazole at 3-position, various arylcarboxamide substituents) that enable the single compound to effectively control diverse weed species including grassy weeds, broadleaf weeds, and sedge weeds. This multi-functional design allows broad spectrum activity while maintaining reliable herbicidal efficacy across different weed types
Data Source
AI summary
The present invention relates to a novel nicotinamide compound, a method for preparing the same, and a herbicide comprising the compound. The compound of the present invention is useful as a herbicide for foliar treatment or soil treatment because it has high safety for wheat or corn and has excellent herbicidal activity against grassy weeds, sedge weeds or broadleaf weeds.