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Weeding composition containing sulfentrazone and metribuzin and application thereof

A herbicidal composition and technology of sulfentrazone, applied in the field of pesticides, can solve the problems of increased environmental pressure, long residual effect period, increased cost, etc., and achieve the effects of reduced dosage, high efficacy and easy implementation

Inactive Publication Date: 2014-10-29
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A single dose of mecitrione and sulfentrazone can be used to control annual broad-leaved weeds in soybean and corn fields, but with the increase of the application period, there are weed resistance, narrow herbicidal spectrum, large dosage, and residual effect. Shortcomings such as a long period of time not only increase the cost, but also increase the pressure on the environment

Method used

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  • Weeding composition containing sulfentrazone and metribuzin and application thereof
  • Weeding composition containing sulfentrazone and metribuzin and application thereof
  • Weeding composition containing sulfentrazone and metribuzin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 80% Sulfentrazone Metrizone Water Dispersible Granules

[0047] Sulfentrazone 32%, metrizone 48%, dispersant polycarboxylate sodium salt 3%, polyoxyethylene-polyoxypropylene block copolymer 1%, wetting agent a-olefin sulfonate sodium 1.25%, fat Amide N-methyl taurine sodium salt 1.25%, disintegrant urea 2.5%, sodium sulfate 2.5%, talcum powder make up 100%. After the mixture is fully mixed and uniform, carry out ultrafine airflow pulverization to obtain a 750-mesh fine powder, and then add an appropriate amount of water to the kneader to knead the resulting fine powder, and then granulate it through an extrusion granulator. Dry at ℃ to obtain 80% sulfentrazone-metrizone water-dispersible granules.

Embodiment 2

[0048] Example 2 60% Sulfentrazone Mezitrione Water Dispersible Granules

[0049] Sulfentrazone 24%, metrizone 36%, dispersant polycarboxylate sodium salt 3%, polyoxyethylene-polyoxypropylene block copolymer 1%, wetting agent a-olefin sulfonate sodium 1.25%, fat Amide N-methyl taurine sodium salt 1.25%, disintegrant urea 2.5%, sodium sulfate 2.5%, talcum powder make up 100%. After the mixture is fully mixed and uniform, carry out ultrafine airflow pulverization to obtain a 750-mesh fine powder, and then add an appropriate amount of water to the kneader to knead the resulting fine powder, and then granulate it through an extrusion granulator. Dry at ℃ to obtain 60% sulfentrazone-metrizone water-dispersible granules.

Embodiment 3

[0050] Example 3 50% Sulfentrazone Metrizone Water Dispersible Granules

[0051] Sulfentrazone 5%, metrizone 45%, dispersant polycarboxylate sodium salt 3%, polyoxyethylene-polyoxypropylene block copolymer 1%, wetting agent a-olefin sulfonate sodium 1.25%, fat Amide N-methyl taurine sodium salt 1.25%, disintegrant urea 2.5%, sodium sulfate 2.5%, talcum powder make up 100%. After the mixture is fully mixed and uniform, carry out ultrafine airflow pulverization to obtain a 750-mesh fine powder, and then add an appropriate amount of water to the kneader to knead the resulting fine powder, and then granulate it through an extrusion granulator. Dry at ℃ to obtain 50% sulfentrazone-mecitrione water-dispersible granules.

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Abstract

The invention discloses a weeding composition containing sulfentrazone and metribuzin and application thereof. The composition takes sulfentrazone and metribuzin as active ingredients, comprises auxiliary materials and can be prepared into water dispersible granules, a suspending agent or wettable powder. The weeding composition disclosed by the invention can be used for effectively controlling annual broad leaf weeds including amaranth, xanthium sibiricum, chenopodium album, setaria viridis, digitaria sanguinalis and the like and parts of grassy weeds in soybean fields and corn fields, and the control effect of the weeding composition is obviously higher than that of single sulfentrazone or single metribuzin. Otherwise, according to the composition, the pesticide effect is improved, the dosage is reduced, the economic cost is saved, the application dosage of each active substance is greatly reduced, residues of chemicals in the environment are reduced, the drug resistance of weeds can be postponed and the service life of the chemicals is prolonged; therefore, the weeding composition has important ecological significances and environmental protection significances.

Description

technical field [0001] The invention relates to a compound herbicidal composition and its application, in particular to a herbicidal composition containing sulfentrazone and metrizone and its application, and belongs to the technical field of pesticides. Background technique [0002] Sulfentrazone, English common name: Sulfentrazone, chemical name: N-(2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo -1H-1,2,4-triazol-1-yl)phenyl)methanesulfonamide. Sulfentrazone is a tan solid with a melting point of 121-123°C, a vapor pressure of 1.3×10-4 MPa (25°C), a specific gravity of 1.21g / ml (20°C), and a solubility in water of 0.11 (pH 6), 0.78 ( pH 7), 16 (pH 7.5) (mg / g, 25°C). Sulfentrazone is a protoporphyrinogen oxidase inhibitor. By inhibiting protoporphyrinogen oxidase, excess protoporphyrin IX is produced in plant cells. The cell membrane, sac membrane, etc. are ruptured, the lysate in the cell leaks out, and the cell dries up and dies. Sulfentrazone can be used...

Claims

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Application Information

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IPC IPC(8): A01N43/707A01P13/00A01N43/653
Inventor 孙国庆侯永生吴勇路雪林张爱喜黄效鹏杨启文刘朋杨晓楠王芬
Owner SHANDONG WEIFANG RAINBOW CHEM
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