Weeding composition containing pyroxasulfone and quinclorac and application of weeding composition

A technology of quinclorac and herbicidal compositions is applied in the field of pesticides to achieve the effects of prolonging service life, reducing labor intensity, and expanding herbicidal spectrum and application range

Inactive Publication Date: 2019-06-07
SHANDONG DEHAO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the combination of metazazone and quinclorac, as well as its joint action type, herbicidal spectrum, herbicidal effect and crop safety.

Method used

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  • Weeding composition containing pyroxasulfone and quinclorac and application of weeding composition
  • Weeding composition containing pyroxasulfone and quinclorac and application of weeding composition
  • Weeding composition containing pyroxasulfone and quinclorac and application of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 A kind of herbicidal composition wettable powder containing pyrazoxazole and quinclorac

[0033] The active ingredients are metazafen-sulfone and quinclorac, the weight ratio of metazafen-sulfone and quinclorac is 1:1, and the weight percentage of the active ingredients in the herbicidal composition is 50%.

[0034] The preparation method is: sequentially put 250 grams of pyrazafen, 250 grams of quinclorac, 298 grams of white carbon black, 160 grams of 2-naphthalenesulfonate formaldehyde condensate, and 42 grams of sodium lauryl sulfate into the mixer In, stirring for 30 minutes to make the material mix evenly, then pass through the flow mill, the material fineness D90≤15 microns, and then mix and stir the material in the mixer again, to obtain the available compound containing metazazone sulfone and quinclorac Wet powder.

Embodiment 2

[0035] Embodiment 2 A kind of herbicidal composition wettable powder containing metazazol sulfone and quinclorac

[0036] The active ingredients are metazafen and quinclorac, the weight ratio of metazafen and quinclorac is 1:20, and the weight percentage of the active ingredients in the herbicidal composition is 44%.

[0037] The preparation method is: successively put 20 grams of pyrazafen, 420 grams of quinclorac, 50 grams of NNO, 65 grams of sodium lignosulfonate, 130 grams of white carbon black, and 315 grams of kaolin into the mixer, and stir for 30 minutes to make The materials are mixed evenly, and then passed through the jet mill to make the fineness of the materials D90≤15 microns. Then, the materials are mixed and stirred again in the mixer to obtain the wettable powder containing metazazone sulfone and quinclorac.

Embodiment 3

[0038] Embodiment 3 A kind of herbicidal composition effervescent agent containing metazafen sulfone and quinclorac

[0039] The active ingredients are metazafen and quinclorac, the weight ratio of metazafen and quinclorac is 4:5, and the weight percentage of the active ingredients in the herbicidal composition is 18%.

[0040] The preparation method is: sequentially mix 80 grams of pyrazafen, 100 grams of quinclorac, 60 grams of sodium lauryl sulfate, 40 grams of sodium lignosulfonate, 230 grams of citric acid, 240 grams of sodium bicarbonate, and 200 grams of kaolin Put it into the mixer, stir for 30 minutes to make the material mix evenly, then pass through the jet mill, and the material fineness is 325 mesh sieve. Add 100 ml of ethanol solution of 10% polyvinyl alcohol prepared in advance, carry out wet granulation and sizing, pass through a 20-mesh sieve, put the granules that meet the standards in a tray, and dry them in a hot air oven at 45°C for 2 hours After drying, ad...

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PUM

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Abstract

The invention discloses a weeding composition containing pyroxasulfone and quinclorac. The active ingredients of the weeding composition are pyroxasulfone and quinclorac. The weight ratio of pyroxasulfone to quincloric is (1-100):(1-100). The weeding composition can be used in maize, rice, wheat, sorghum, lawn and other crop fields and can control most annual grasses and broad-leaved weeds, including barnyard grass, eleusine indica, crabgrass, green bristlegrass, Eleocharis yokoscensis, acalypha australis, portulaca oleracea, descurainia sophia, Capsella bursa-pastoris, ammannia arenaria, Scirpus juncoides and the like which are resistant to sulfonylurea herbicides.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicidal composition containing metazafen-sulfone and quinclorac and application thereof. Background technique [0002] Pyroxasulfone, the Chinese chemical name is 5-(difluoroethoxy)-1-methyl-3-trifluoromethylpyrazole-4-methyl-4,5-2H-5,5 -Dimethyl-1,2-oxazol-3-sulfone, or 3-(5-difluoroethoxy-1-methyl-3-trifluoromethylpyrazole-4-thiasulfone)- 4,5-2H-5,5-Dimethyl-1,2-oxazole. Molecular formula is C 12 h 14 f 5 N 3 o 4 S, relative molecular weight 391.3. The appearance of the original drug is white crystal, the melting point is 129-130°C, the solubility in water is 3.49mg / L (20°C, pH7), and the vapor pressure is 2×10 -6 Pa (25°C), its structural formula is: [0003] [0004] Metraxazole sulfone is a new pre-emergence herbicide developed by Japan Combination Chemical Industry Co., Ltd. and Anyuan Chemical Industry Co., Ltd. that can be used for grass and broad-leav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N43/42A01P13/00
Inventor 王铭孙冬张彩赵守明李宏元谢印贤王慧君王子谦
Owner SHANDONG DEHAO CHEM
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