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Herbicidal composition containing propyrisulfuron, pretilachlor and penoxsulam

A technology of promasulfuron-methyl and penoxsulam, which is applied in the field of pesticides, can solve the problems of no relevant reports on the compounding of promethazone-methyl and penoxsulam, and achieve the expansion of the herbicidal spectrum Effect

Inactive Publication Date: 2015-08-12
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Compounding of promasulfuron-methyl, pretilachlor and penoxsulam No related reports

Method used

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  • Herbicidal composition containing propyrisulfuron, pretilachlor and penoxsulam
  • Herbicidal composition containing propyrisulfuron, pretilachlor and penoxsulam
  • Herbicidal composition containing propyrisulfuron, pretilachlor and penoxsulam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Promasulfuron-methyl, pretilachlor, penoxsulam and their compounds Echinochloa crusgalli, Leersia hexandra, Murdannia triquetra, Scirpus validus) and Cyperus difformis indoor toxicity test.

[0017] According to the Colby method to evaluate the combination of herbicides (NY / T 1155.7-2006), the formula is as follows:

[0018] E 0 = A × B × C × . . . N 100 ( n - 1 )

[0019] In the formula:

[0020] A is the fresh weight inhibitory rate of promethazone-methyl to the target weeds when a certain dose is used alone;

[0021] B is the fresh weight inhibition rate of target weeds when pretilachlor is use...

Embodiment 2

[0046] Example 2: 55% promasulfuron-methyl-pretilachlor-pentoxsulam wettable powder.

[0047]

[0048] The above-mentioned materials are mixed uniformly, crushed mechanically and then crushed by air flow, and mixed uniformly to obtain 55% promasulfuron-pretilachlor-pentoxsulam wettable powder.

Embodiment 3

[0049] Example 3: 24% promasulfuron-methyl-pretilachlor-pentoxsulam dispersible oil suspension concentrate.

[0050]

[0051] Put the above materials (except organic bentonite) into the reaction kettle mixer together, stir for 2 hours, open the feed valve at the bottom of the kettle, inject the materials into the multi-stage sand mill for grinding, and the fineness of the ground materials is 98% through 1- After 5um, the material is discharged, and the material is put into a high-shear emulsification kettle together with the pre-dissolved organic bentonite. After emulsification, it can be made into 24% promasulfuron-pretilachlor with good flowability and corresponding weight percentage · Penoxsulam dispersible oil suspension concentrate.

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PUM

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Abstract

The invention relates to a herbicidal composition containing propyrisulfuron, pretilachlor and penoxsulam, which comprises the active ingredients of propyrisulfuron, pretilachlor and penoxsulam. The herbicidal composition provided by the invention has synergy against weeds in a paddy field, can expand a single dose weed control spectrum and reduce the risk of weed resistance, and is suitable for controlling the annual weeds in the paddy rice.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic herbicidal composition with promethazone-methyl, pretilachlor and penoxsulam as active ingredients, which is mainly suitable for controlling annual weeds in paddy fields. Background technique [0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in paddy fields, the grass phases are complex, and grasses, sedges, and broad-leaved weeds are mixed, and the use of a single compound herbicide will show some defects and defects. Limitations, can not completely solve the weeds in farmland. The combination of different types of compound herbicides can expand the herbicidal spectrum, improve the actual effect, delay weed resistance, and save time and labor. [0003] Propyrisulfuron, chemical name: 1-(2-chloro-6-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N37/22A01N43/90
Inventor 陈佛祥王礼文朱刚吴泽伟张志伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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