Glufosinate-Carfentrazone Herbicide Ratios for Selective Weed Control
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Solution Overview
Problem
Existing herbicides face issues such as insufficient herbicidal activity, narrow spectrum of control, low selectivity and compatibility with plantation crops, inadequate initial activity, and short duration of action, which can lead to unwanted damage and reduced harvest yields.
Innovation Solution
A combination of glufosinate, particularly L-glufosinate, and carfentrazone-ethyl in specific ratios, where the weight ratio of glufosinate is at least 40 to 1000 times higher than carfentrazone-ethyl, enhancing herbicidal activity and compatibility with plantation crops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing herbicides are used individually, then application is simple, but herbicidal activity is insufficient and spectrum of control is narrow
Solution Approach 1:
The patent combines glufosinate and carfentrazone-ethyl into a single herbicide composition to achieve synergistic herbicidal effects. This merging of two different herbicide modes of action broadens the spectrum of control and enhances overall herbicidal activity while maintaining practical application simplicity.
Solution Approach 2:
The invention creates a composite herbicide formulation containing both glufosinate and carfentrazone-ethyl in specific ratios. This composite approach leverages the different mechanisms of action of each herbicide to achieve superior weed control compared to individual herbicides, resolving the contradiction between simplicity and effectiveness.
2Productivity
If herbicide application rate is increased to improve initial activity, then initial herbicidal activity increases, but damage to plantation crops increases
Solution Approach 1:
The patent optimizes the concentration ratio of glufosinate to carfentrazone-ethyl in the herbicide composition. By carefully controlling these parameters, the formulation achieves high initial herbicidal activity against weeds while maintaining selectivity that protects plantation crops from damage, resolving the contradiction between effectiveness and safety.
3Duration of action of stationary object
If single herbicide is used to maintain selectivity, then compatibility with plantation crops is maintained, but duration of action is short
Solution Approach 1:
The combination of glufosinate and carfentrazone-ethyl provides both extended duration of action and maintained selectivity. The synergistic interaction between the two herbicides ensures long-lasting weed control while the specific formulation ratios preserve compatibility with plantation crops, resolving the contradiction between duration and selectivity.
Data Source
AI summary
The present invention relates to specific herbicide combinations comprising (i) L-glufosinate and/or salts thereof and (ii) carfentrazone-ethyl in specific ratios, and to compositions comprising said herbicide combinations in these ratios. The present invention further relates to a method of producing said specific herbicide combinations and compositions comprising said specific herbicide combinations. The present invention also relates to the use of said specific herbicide combinations and compositions comprising said specific herbicide combinations in the field of agriculture, for controlling harmful plants or undesired plant growth, as well as to corresponding methods.