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Herbicide composition and preparation thereof

A herbicidal composition and a technology for the composition, applied in the field of pesticides, can solve problems such as inability to completely effectively control weeds, difficulty in corn production, and achieve good control effect, improved control effect, and the effect of expanding herbicidal spectrum.

Inactive Publication Date: 2009-10-28
孙永吉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The post-emergence herbicides used in corn fields, sulfomesulfuron and atrazine alone cannot completely and effectively control the occurrence of weeds in corn fields, which brings great difficulties to corn production. Looking for an ideal post-emergence weeding in corn fields It is of great significance to the high and stable yield of corn

Method used

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  • Herbicide composition and preparation thereof
  • Herbicide composition and preparation thereof
  • Herbicide composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Preparation of rimsulfuron-atrazine wettable powder

[0062] Parts by weight of each component

[0063] 95% rimsulfuron-methyl 2.0

[0064] 97% Atrazine 30.0

[0065] Sodium Lauryl Sulfate 1.5

[0066] Sodium lignosulfonate 2.0

[0067] NNO0.5

[0068] White carbon black 3.0

[0069] Diatomaceous earth 60.0

[0070] Put various materials into the coulter mixer in turn, mix evenly, and then pulverize with a jet mill until the particle size of the active ingredient is less than 45 μm.

Embodiment 2

[0072] Rimisulfuron-atrazine suspension concentrate:

[0073] Parts by weight of each component

[0074] 95% rimsulfuron-methyl 0.5

[0075] 97% Atrazine 20.1

[0076] Silicone defoamer 0.1

[0077] Calcium dodecylbenzenesulfonate 15.0

[0078] HYJ xanthan gum 0.2

[0079] Ethylene glycol 5.0

[0080] Salad oil 59.1

[0081] The various components are mixed together, stirred for 15 minutes, sheared for 15 minutes, and kept at 30°C in a sand mill for more than 150 minutes until the particle size of the active ingredient is less than 3 μm.

Embodiment 3

[0083] Preparation of rimsulfuron-atrazine water dispersible granules

[0084] Parts by weight of each component

[0085] 95% rimsulfuron-methyl 4.2

[0086] 97% Atrazine 61.8

[0087] Sodium Lauryl Sulfate 2.0

[0088] WG4 2.0

[0089] Polyvinyl alcohol 1.0

[0090] White carbon black 3.0

[0091] Diatomaceous earth 26.0

[0092] Mix the components in the formula evenly in a coulter mixer, and pulverize them into powder through an ultra-fine jet mill to obtain a fine powder of 800 mesh to 1000 mesh, and add the aqueous solution of the fine powder and the binder to the mixer and mix. Uniformity, granulation by extruding granulator, drying at 50°C-100°C at low temperature to obtain the water-dispersible granule of the pesticide.

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Abstract

The invention pertains to the field of pesticide, in particular to a herbicide composition containing rimsulfuron and atrazine and a preparation thereof. The herbicide composition is characterized by containing two ingredients of A and B, wherein A is the rimsulfuron and B is the atrazine; the portions of A and B by weight are respectively: 0.1 to 90 portions of rimsulfuron and 5 to 90 portions of atrazine. The herbicide composition has good effect for preventing and killing off annual poaceae, broadleaf weeds and part of perennial weeds in corn fields, as well as obvious synergy, and simultaneously enlarges the herbicide controlling spectrum.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicide composition containing rimsulfuron-methyl and atrazine and a preparation thereof. Background technique [0002] [0003] The Chinese common name of formula I compound is rimsulfuron, English common name: rimsulfuron, chemical name: 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylthio-2 -pyridylthio)urea. The appearance of the original drug is colorless crystals, the melting point is 176-178°C, and the vapor pressure is 1.5×10 -6 Pa (25°C), density 0784 (25°C), solubility: water (25°C) <10mg / L (unbuffered), 7.3g / L (buffered, pH7). [0004] [0005] The Chinese common name of the compound of formula II is atrazine, the English common name: atrazine, the chemical name: 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine, and the pure product is none Color powder, melting point 175.8°C, vapor pressure 3.85×10 -2 mPa (25°C), relative density 1.23, solubility ...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/70A01P13/00
Inventor 孙永吉孙一惠张荣宝刘微
Owner 孙永吉
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