Weeding composition containing fenoxsulfone and application of weeding composition

A technology of sulfamethoxazole and herbicidal composition, applied in the field of pesticides, can solve problems such as poor control effect of perennial weeds, and achieve the effects of excellent herbicidal effect, good synergy, and reduction of the dosage of chemicals

Active Publication Date: 2020-07-28
JIANGSU REPONT PESTICIDE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem of poor control effect on perennial weeds in the prior art, providing a herbicidal composition containing carfentrazone and its application

Method used

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  • Weeding composition containing fenoxsulfone and application of weeding composition
  • Weeding composition containing fenoxsulfone and application of weeding composition
  • Weeding composition containing fenoxsulfone and application of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、39

[0025] (embodiment 1, 39% emulsifiable concentrate)

[0026] 39% Mefenoxazone · Pretilachlor EC: 1% Mefenoxazone, 38% Pretilachlor, 12% Promethazine, Emulsifier Di-Seconyl Maleate Sulfonate Sodium 5%, Emulsifier 3% phenylethylphenol polyoxyethylene ether, sec-butyl acetate 15%, solvent naphtha 150# make up to 100% (above contents are mass percentages, the same below).

[0027] 39% fenoxazone-butachlor EC: 1% fensulfentrazone, 38% butachlor, 12% fenzachlor, 5% emulsifier di-octyl maleate sulfonate sodium, Emulsifier 3% phenylethylphenol polyoxyethylene ether, 15% sec-butyl acetate, 150# mineral spirits make up to 100%.

[0028] The preparation method is as follows: put all the weighed materials into the batching kettle, stir and dissolve until completely transparent to obtain emulsifiable concentrate, and transfer to the storage tank for filling after passing the test.

Embodiment 2、30

[0029] (embodiment 2, 30% water dispersible granule)

[0030] 30% Mefenoxazone·Pretilachlor Water Dispersible Granules: Mefenoxazone 0.77%, Pretilachlor 29.23%, Metrafenpyr 9.7%, Wetting agent alkyl succinate sulfonate 5%, dispersant naphthalene sulfonate 4%, dispersant alkylphenol polyoxyethylene ether phosphate 4%, disintegrant sodium sulfate 4%, white carbon black 5%, diatomaceous earth make up to 100%.

[0031] 30% carfentrazone-butachlor water dispersible granule: 0.77% carfentrazone, 29.23% butachlor, 9.7% mefenpyr-ethyl, wetting agent alkyl succinate sulfonate 5%, dispersant naphthalene sulfonate 4%, dispersant alkylphenol polyoxyethylene ether phosphate 4%, disintegrant sodium sulfate 4%, white carbon black 5%, diatomaceous earth make up to 100%.

[0032] Preparation method: After mixing all the weighed materials evenly, pulverize them with an airflow mill, mix evenly again, then add a certain amount of water to knead the mixture, extrude and granulate, and obtain wat...

Embodiment 3、15

[0033] (embodiment 3, 15% water emulsion)

[0034] 15% sulfoxazone-pretilachlor aqueous emulsion: 0.38% sulfoxazone, 14.62% pretilachlor, 4.9% promethazine, 10% solvent xylene, 6% solvent cyclohexanone, emulsifier ten Dialkyl sodium sulfate 5%, emulsifier sorbitan ester 4%, antifreeze agent propylene glycol 5%, water to make up to 100%.

[0035]15% sulfoxazone-butachlor emulsion in water: 0.38% sulfoxazone, 14.62% butachlor, 4.9% promethazine, 10% solvent xylene, 6% solvent cyclohexanone, emulsifier ten Dialkyl sodium sulfate 5%, emulsifier sorbitan ester 4%, antifreeze agent propylene glycol 5%, water to make up to 100%.

[0036] Preparation method: After fully dissolving the weighed carfentrazone and pretilachlor, or the mefenoxazone and butachlor in a solvent, put in an emulsifier and stir well to form an oil phase; add the antifreeze agent into water to dissolve, A water phase is formed; the water phase is slowly added to the oil phase and sheared with a high-speed shear...

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Abstract

The invention discloses a weeding composition containing fenoxsulfone. The weeding composition comprises the following active ingredients: fenoxsulfone and pretilachlor, or fenoxsulfone and butachlor.The weeding composition disclosed by the invention can be used for effectively preventing and removing various annual and perennial weeds at one time, has very high selectivity on rice and barnyard grass, and shows a special effect on weeds such as barnyard grass, moleplant seeds, digitaria sanguinalis, monochoria, eleocharis yokoscensis, Cizao (a kind of alga) and scirpus juncoides which are difficult to remove in a paddy field. The weeding composition disclosed by the invention has a good synergistic effect, the application effect of the weeding composition is obviously superior to the sumof theoretical effects of the single agents, a super-superposition effect is obtained, and the harm of dominant weeds can be better controlled; in addition, the weeding composition reduces the use amount of chemicals, is reduced use cost and environmental pollution, and has improved safety to crops.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a herbicidal composition containing carfentrazone and its application. Background technique [0002] Rice is one of the main crops in our country. For a long time, barnyardgrass, syringa, and three-edge grass (including Japanese sedge, flat stalk, and three-edge grass, etc.) have been the three major harmful weeds in rice fields; in addition, some Due to the long-term and continuous use of pyrazosulfuron-methyl, bensulfuron-methyl and other pesticides in the area, the damage of the more serious malignant weeds Azalea and heteromorphic sedges has been gradually reduced, but the perennial wild arrowhead, Alisma and annual The hazards of Yujiuhua, duck tongue grass, wild water chestnuts, and Moshang vegetables are aggravated. There are also weeds such as Yinglin, Acupuncture, and cattle felt in the rice fields. [0003] The use of a single herbicide has a limited co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N37/26A01N37/22A01P13/00
CPCA01N37/22A01N37/26A01N43/80
Inventor 步康明胡兴华胡俊柳文宁白浩
Owner JIANGSU REPONT PESTICIDE FACTORY
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