L-glufosinate and 2,4-D Choline Salt Synergy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current herbicides, such as glufosinate and 2,4-D, have limitations in activity and target specificity, requiring improved combinations for effective broadleaf and grassy weed control without harming desirable plants, especially in pre- and post-emergence crops, and facing challenges with resistant weed varieties.
Innovation Solution
A synergistic combination of L-glufosinate or its salt and a choline salt of 2,4-D is developed, which can be applied pre- or post-emergence, providing efficient weed control by combining L-glufosinate's inhibition of glutamine synthetase with 2,4-D's systemic action, offering enhanced efficacy against a wide spectrum of weeds, including resistant varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If glufosinate is used as a non-selective herbicide, then broad spectrum weed control is achieved, but crop damage occurs and selective control is lost
Solution Approach 1:
The patent segments the herbicide spectrum into selective and non-selective components by combining glufosinate (non-selective) with 2,4-D (selective), allowing targeted control of specific weed types while preserving crop safety
Solution Approach 2:
The patent merges glufosinate and 2,4-D into a combination product that integrates the broad-spectrum capability of glufosinate with the selective control of 2,4-D, achieving both versatility and crop safety simultaneously
2Object-affected harmful factors
If 2,4-D is used for selective broadleaf weed control, then crop safety is maintained, but grassy weed control is insufficient
Solution Approach 1:
The patent combines 2,4-D's selective broadleaf control with glufosinate's grassy weed efficacy, creating a dual-mode herbicide system that maintains crop safety while expanding control capability to include grassy weeds
3Productivity
If herbicide combinations are used to enhance activity, then weed control efficacy is improved, but formulation selection complexity increases
Solution Approach 1:
The patent creates a universal formulation that can be applied across multiple crop types and weed scenarios, eliminating the need for separate formulations for different applications and simplifying selection while maintaining high efficacy
4Reliability
If glufosinate is applied at high rates to control resistant weeds, then resistant variety control is improved, but chemical usage and cost increase
Solution Approach 1:
The patent merges glufosinate with 2,4-D in a synergistic combination that enhances the effectiveness of each component, allowing reduced chemical usage while maintaining control efficacy over resistant weeds through enhanced biological activity rather than increased dosage
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 combination demonstrates synergistic effects, providing effective control of both monocotyledonous and dicotyledonous weeds with reduced chemical usage, effective against resistant varieties, and showing improved weed control compared to individual herbicides, as evidenced by greenhouse trials using Colby's equation.
Implementation Method 1
The herbicidally active L-isomer of glufosinate is a structural analogue of glutamate and, therefore, is a competitive inhibitor of the enzyme glutamine synthetase (GS) of bacteria and plants
Implementation Method 2
The herbicide kills weeds by disrupting plant hormone responses. It is a systemic herbicide which selectively kills most broadleaf weeds by causing uncontrolled growth in them
Data Source
AI summary
Herbicidal combinations and compositions generally include L-glufosinate or a salt thereof, and a choline salt of 2,4-D. Also disclosed are methods of controlling weeds using the same.