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Acetochlor and prometryn containing weeding composition and preparation method and application thereof

A herbicidal composition, a technology of acetochlor, applied in the field of pesticides, can solve the problems of difficulty in manual removal, uneven application, poor control effect, etc., and achieve the effects of reducing the amount of drugs used, reducing drug residues, and being convenient to operate.

Active Publication Date: 2016-07-13
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, most of the registered products of acetochlor and promethazone in rice fields are wettable powders. In rice transplanting fields, poisonous soil is mainly applied, which is labor-intensive, uneven application, and poor control effect. Difficulty in manual removal

Method used

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  • Acetochlor and prometryn containing weeding composition and preparation method and application thereof
  • Acetochlor and prometryn containing weeding composition and preparation method and application thereof
  • Acetochlor and prometryn containing weeding composition and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 130

[0037] Embodiment 130% acetochlor prometon effervescent tablet

[0038] Formula: 15% acetochlor, 15% promethazine, 2% dispersant maleic acid-acrylic acid copolymer salt, 3% sodium naphtholsulfonic acid formaldehyde condensate, 1% wetting agent sodium tetradecyl sulfate , sodium alkylnaphthalene sulfonate 1%, disintegrant citric acid 14%, sodium bicarbonate 16%, filler white carbon black 20%, cornstarch supplement 100%.

[0039] The preparation method is as follows: after fully mixing half of the total mass of acetochlor, promethazone, dispersant, wetting agent and filler with the acid source of the disintegrating agent, carry out ultra-micro airflow pulverization to obtain a 750-mesh fine powder, and then The resulting fine powder is kneaded by adding an appropriate amount of water (3-5% by weight of the material) in a kneader, and granulated by a swing granulator to obtain granules of about 20 meshes. The granules are dried at 60°C and set aside; After fully mixing with the ...

Embodiment 230

[0040] Embodiment 230% acetochlor prometon effervescent tablet

[0041] The formulation and preparation method of the effervescent tablet are the same as in Example 1, except that the weight of the effervescent tablet is 1.0 g.

Embodiment 330

[0042] Embodiment 330% acetochlor prometon effervescent tablet

[0043] The formulation and preparation method of the effervescent tablet are the same as in Example 1, except that the weight of the effervescent tablet is 2.0 g.

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Abstract

The invention discloses an acetochlor and prometryn containing weeding composition and a preparation method and application thereof.The composition comprises effective components including acetochlor and prometryn in a mass ratio of 1-50:1-50.The weeding composition can be used for prevention and control of weeds in transplanted rice fields, and control effects of the weeding composition are evidently higher than those of the acetochlor or the prometryn.The weeding composition can be made into effervescent tablets, and accordingly labor intensity in application is greatly relieved, and time saving and labor saving are realized; in addition, the weeding composition can be spread more uniformly to achieve excellent weeding effects, and drifting of the weeding composition is avoided, so that safety of surrounding sensitive crops is guaranteed.

Description

technical field [0001] The invention relates to a herbicidal composition containing acetochlor and protractor, and also relates to an effervescent tablet of the herbicidal composition containing acetochlor and promethazin, a preparation method and application thereof, and belongs to the technical field of pesticides. Background technique [0002] Acetochlor, English common name: acetochlor, chemical name: 2'-ethyl-6'-methyl-N-(ethoxymethyl)-2-chloroacetanilide. The appearance of acetochlor is blue-purple oil, which can be dissolved in a variety of organic solvents. It is a selective pre-emergent herbicide that can be absorbed by plant sprouts. It must be applied before weeds emerge. Monocotyledonous plants absorb through the bud sheath. Dicotyledonous plants absorb and conduct through the hypocotyl, and the active ingredients interfere with nucleic acid metabolism and protein synthesis in the plant to stop the growth of young shoots and roots. Acetochlor has high activity a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/70A01N37/26A01N25/34A01P13/00
CPCA01N25/34A01N37/26A01N43/70A01N2300/00
Inventor 孙国庆侯永生吴勇刘杰赵保臣
Owner SHANDONG WEIFANG RAINBOW CHEM
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