Weeding preparation and application thereof

A preparation and dispersant technology, which is applied in the field of 2--N-methylbenzenesulfonamide) ethyl acetate herbicide preparation and herbicide composition for paddy fields, can solve the problem of large environmental pollution and the biological activity of herbicide active components Problems such as unsatisfactory performance and high cost

Active Publication Date: 2021-09-14
SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the use of herbicides at the present stage is usually two ways, one way is: first dissolve the active ingredient with an organic solvent (such as acetone) (the content of acetone in the total solution is not more than 10%), and then use 0.1% The Tween 80 aqueous solution is prepared into a solution of the requ

Method used

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  • Weeding preparation and application thereof
  • Weeding preparation and application thereof
  • Weeding preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、75

[0041] The preparation of embodiment 1,75% compound A wettable powder

[0042]According to the formulation requirements, 75 parts of compound A, 1.5 parts of Morwet EFW, 4 parts of Supragil MNS / 90, 4 parts of sodium salt of alkylnaphthalenesulfonic acid polycondensate, 3 parts of alkylnaphthalenesulfonate formaldehyde condensate, 5 parts of white carbon Black and diatomaceous earth are supplemented to 100% and fully mixed, and pulverized by an ultrafine pulverizer to obtain a 75% compound A wettable powder. Measurement results of physical properties: active component content, 75.2%; fineness (through 45μm standard sieve) 99.5%; suspension rate, 92.9%; wetting time, 30s; thermal storage (54±2°C / 14d): content, 74.5 %, fineness (through 45 μm standard sieve) 98.1%; suspension rate, 90.5%; wetting time, 35s.

Embodiment 2、35

[0043] The preparation of embodiment 2,35% compound A wettable powder

[0044] According to the formulation requirements, 35 parts of compound A, 2 parts of sodium lauryl sulfate, 4 parts of Supragil MNS / 90, 3 parts of polycarboxylate dispersant GY-D02, 4 parts of sodium methylene naphthalene sulfonate, 4 parts Sodium lignosulfonate, 5 parts of white carbon black, and diatomaceous earth are added to 100% and mixed thoroughly, and pulverized by an ultrafine pulverizer to obtain a 35% compound A wettable powder. Measurement results of physical properties: active component content, 35.1%; fineness (through 45μm standard sieve) 99.8%; suspension rate, 95.3%; wetting time, 15s; thermal storage (54±2°C / 14d): active component Content, 34.6%; fineness (through 45μm standard sieve) 99.1%; suspension rate, 92.5%; wetting time, 15s.

Embodiment 3、60

[0045] The preparation of embodiment 3,60% compound A wettable powder

[0046] According to the formulation requirements, add 60 parts of compound A, 2 parts of wetting agent TENSIOFIX BCZ, 4 parts of dispersant SK-24, 5 parts of polycarboxylate dispersant GY-D02, 5 parts of white carbon black, diatomaceous earth to 100 % fully mixed, after being pulverized by an ultrafine pulverizer, 60% compound A wettable powder was obtained. Measurement results of physical properties: active component content, 60.3%; fineness (through 45μm standard sieve) 99.7%; suspension rate, 93.1%; wetting time, 20s; thermal storage (54±2°C / 14d): active component Content, 59.5%; fineness (through 45μm standard sieve) 98.2%; suspension rate, 91.1%; wetting time, 20s.

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Abstract

The invention belongs to the field of herbicides, and relates to an ethyl 2-(2-chloro-5-(3-chloro-5-trifluoromethylpyridine-2-yl)-N-methylbenzenesulfonamide)acetate weeding preparation and a use method thereof. The active component of the weeding preparation is a compound with the structure shown in the specification, and the active component is mixed with at least one carrier and at least one surfactant to prepare powder, wettable powder, granules, water dispersible granules, emulsifiable powder (granules), effervescent granules, effervescent tablets, microcapsule granules, slow-release granules or medical fertilizers. In any case, the selection of the type of the preparation depends on the physical, chemical and biological properties of the active ingredient. The preparation variety provided by the invention can more efficiently prevent and remove broadleaf weeds, grassy weeds and nutgrass flatsedge in paddy fields.

Description

technical field [0001] The invention belongs to the technical field of agricultural herbicides, and relates to a herbicide composition for paddy fields, specifically 2-(2-chloro-5-(3-chloro-5-trifluoromethylpyridin-2-yl)- N-methylbenzenesulfonamide) ethyl acetate herbicidal formulations and methods of use thereof. Background technique [0002] Rice is an important food crop with a wide range of planting areas. A new herbicidal compound 2-(2-chloro-5-(3-chloro-5-trifluoromethylpyridin-2-yl)-N-methylbenzenesulfonamide)acetic acid developed by Shenyang Sinochem Pesticide Chemical Research and Development Co., Ltd. Ethyl ester (Patent No.: CN 102464611 A, CN103003240 A, WO2012059050 A1) has extremely high herbicidal activity and can effectively control barnyardgrass, velvetleaf, snakehead, foxtail, zinnia, cocklebur, yujiuhua in paddy fields The results of the indoor and field efficacy of weeds such as , duck tongue, and sagittaria show that the compound may have application p...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01P13/00
CPCA01N43/40Y02P60/20
Inventor 丑靖宇张国生关爱莹刘长令
Owner SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD
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