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Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof

A herbicidal composition and dicamba technology, applied in the field of pesticides, can solve the problems that herbicides cannot completely and effectively control weeds in wheat fields, affect the use of dicamba, and have limited herbicidal spectrum, achieving important ecological and environmental significance , Prolong the application period and expand the effect of weeding spectrum

Inactive Publication Date: 2012-10-03
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the extensive use of dicamba, many weeds have gradually developed resistance to it, seriously affecting the use of dicamba
[0004] At present, herbicides in wheat fields are limited by the safety of crops, and the herbicide spectrum is also limited. Using one herbicide alone cannot completely and effectively control the occurrence of weeds in wheat fields. developed resistance to it, seriously affecting its use

Method used

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  • Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof
  • Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof
  • Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 10% 2,4-D dicamba dimethylamine saline solution

[0027] 2,4-D 5%, Dicamba 5%, Dimethylamine 1.0%, Stabilizer Sodium Casein 0.9%, in a partially deionized water reactor, stir and heat up at 75°C for 2.1h, cool down to 35°C, add Efficacy agent fatty alcohol polyoxyethylene ether 2.0%, antifreeze ethanol 1.0%, silicone defoamer 0.03%, add ionized water to 100%, and prepare 10% 2,4-D dicamba dimethylamine saline agent.

Embodiment 2

[0028] Example 2 50% 2,4-D dicamba dimethylamine saline solution

[0029] 2,4-D 38%, dicamba 12%, dimethylamine 6.0%, stabilizer EDTA disodium 2.0%, and some deionized water in a reaction kettle, stir and heat up at 85°C for 1.0h, then cool down to 50°C ℃, add synergist alkylphenol polyoxyethylene ether 5.%, fatty alcohol polyoxyethylene ether 4.0%, antifreeze agent ethylene glycol 7.5%, C8-C10 fatty alcohol defoamer 0.08%, add ionized water to 100%, and 50% 2,4-D·Dicamba Dimethylamine Saline Solution was prepared.

Embodiment 3

[0030] Example 3 50% 2,4-D Dicamba Sodium Saline

[0031] 2,4-D 25%, Dicamba 25%, Sodium Hydroxide 8.0%, Stabilizer EDTA 1.0%, Partially deionized water in a reactor, stir and heat up at 55°C for 1.8h, cool down to 32°C, Add synergist fatty amine polyoxyethylene ether 6.9%, antifreeze agent glycerin 3.7%, Cl0-C 20 saturated fatty acids (such as capric acid) and amide defoamer 0.03%, silicone oil 0.03%, add ionized water to 100%, prepared 50% 2,4-D·Dicamba sodium saline solution.

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Abstract

The invention discloses a herbicidal composition containing 2,4-D and florasulam, which consists of active ingredients and adjuvants, and the active ingredients are 2,4-D and florasulam. The invention also discloses a preparation method and application of the herbicidal composition. The invention chooses 2,4-D and florasulam with different herbicidal spectra to complement defects with advantages, consequently, the efficacy is remarkably enhanced, the herbicidal spectrum is broadened, the optimum period of herbicide application is prolonged, the dosage of the herbicide is reduced, the economic cost is saved, the dosage of each applied active substance is greatly reduced, in particular, the reduction of the dosage of florasulam can lead to the great reduction of the residual agent in the environment, the occurrence and development of herbicide resistance can be retarded as well, and therefore the invention is highly significant in terms of ecology and environment protection.

Description

technical field [0001] The invention relates to a herbicidal composition containing 2,4-D and dicamba, a preparation method and application of the herbicidal composition, and belongs to the technical field of pesticides. Background technique [0002] 2,4-D (2,4-D), molecular formula: C 8 h 6 Cl 2 o 3 , chemical name: 2,4-dichlorophenoxyacetic acid. 2,4-D is a phenoxycarboxylic acid selective systemic conduction hormone herbicide, which has strong systemic conductance and can inhibit plant growth and development at low concentrations, causing deformities and even death. It is mainly used for The post-emergence stem and leaf treatment has different effects on the synthesis of nucleic acid and protein, so that the growth point stops growing, the young leaves cannot be stretched, and the normal progress of photosynthesis is inhibited. The chemical agent transmitted to the lower part of the plant promotes abnormal cell division and root tip swelling , loss of absorption capa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N39/04A01N37/40A01P13/00
Inventor 孙国庆侯永生吴勇李遵亮李志清许立卫沈婕刘元强刘强袁良国孙国冉陈琦宋吉奎
Owner SHANDONG WEIFANG RAINBOW CHEM
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