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Composite herbicide containing pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl, and application thereof

A technology of high-efficiency haloxyfop-pyl and compound herbicide, applied in the direction of herbicide and algicide, application, biocide, etc., can solve the problem of incomplete and effective control of weeds in cotton fields, limited safety, and herbicide Spectrum is limited and other issues, to achieve the effect of reduced speed, high safety, wide spectrum of weeding

Inactive Publication Date: 2014-12-03
河南中天恒信生物化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] At present, herbicides in cotton fields are limited by the safety of crops, and the herbicide spectrum is also limited. Using a herbicide alone can no longer completely and effectively control the occurrence of weeds in cotton fields.

Method used

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  • Composite herbicide containing pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl, and application thereof
  • Composite herbicide containing pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl, and application thereof
  • Composite herbicide containing pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: compound herbicide and dispersible oil suspension concentrate thereof

[0050] 1. Raw materials (mass percentage): 25% of pyrizachlor, 15% of fluroxazone, 10% of beta-haloxyfop, 3% of sodium lignosulfonate, 5% of alkylphenol polyoxyethylene ether sulfate , 5% organic ammonium salt, 3% organic bentonite, and methyl oleate to make up to 100%.

[0051] 2. Preparation method: Mix the above-mentioned components evenly and grind them in a sand mill for 4 hours to form a coarse dispersion, and then undergo wet ultrafine grinding to make the average particle size less than 5 μm to obtain the required 50% Pyrizachlor, fluroxazone, and high-efficiency fluroxyfop dispersible oil suspension concentrate products.

Embodiment 2-4

[0052] Embodiment 2-4: compound herbicide and dispersible oil suspension concentrate thereof

[0053] The composition suspending agent of following different content can be prepared by the similar method of embodiment 1, and its raw material is as follows:

[0054]

experiment example 1

[0055] Experimental example 1, indoor activity determination test

[0056] Utilizing the preparation in the examples and the example 1 (abbreviated as control group 1) in CN201110351772.6 (publication number is CN102334496A), 3% triflusulfuron-methyl+5% pyrifluzal+5% quizalofop-ethyl +8% high-efficiency haloxyfop, and its co-toxicity coefficient to the common Cyperaceae weed Cyperus syringae in cotton fields was determined.

[0057] The seeds to be tested were first soaked in warm water at 40°C to accelerate germination, and sowed after the seeds turned white. Sow the pretreated Cyperus cyperi seeds evenly on the soil surface, cover the soil with 0.5cm, and move them into the greenhouse for routine cultivation after sowing. Use the bottom of the pot to fill the water by infiltrating irrigation to make the soil completely moist. Cultivate in the greenhouse for 10 hours, thinn the seedlings and set the plants 10 days after sowing, so that the density of weeds is 20 plants / pot, ...

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Abstract

The invention relates to a composite herbicide containing pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl, and application of the composite herbicide. The composite herbicide comprises the following components: pyrithiobac-sodium, fluorochloridone and haloxyfop-R-methyl. The application of the composite herbicide in weeding after seedlings in a cotton field, especially the application in preventing and removing various gramineous weeds and broadleaf weeds in the cotton field, has a significant effect. According to the herbicide, compared with single dosage, the weed resistance is delayed under the premise of improving the pesticide effect, a weed control spectrum is expanded, both the gramineous weeds and the broadleaf weeds are removed, the lasting period is long, and the composite herbicide has reliable safety on cotton and afterreap crop.

Description

technical field [0001] The invention relates to the field of herbicides, in particular to a compound herbicide containing pyrizachlor, fluromidone and high-efficiency haloxyfop-pyl and an application thereof. Background technique [0002] Pyrithiobac-sodium, molecular formula C 13 h 10 C l N 2 NaO 4 S, chemical name: pyrimthiocarb-in; 2-chloro-6-(4,6-dimethoxypyrimidin-2-ylthio)sodium benzoate; 2-chloro-6-(4,6-dimethoxy Pyrimidin-2-ylthio)benzoic acid sodium salt. [0003] Structural formula: [0004] [0005] The safety of pyrimethicarb to cotton is based on its rapid degradation in the cotton plant. Control objects: annual and perennial grass weeds and most broadleaf weeds. It has a very good control effect on well-known difficult weeds such as morning glory, cocklebur, japonica, azurite, velvetleaf, and Arabian sorghum. The dosage of active ingredients registered in China is 2.3-7.0 grams per mu, which can be used for soil and stem and leaf treatment. Now it ...

Claims

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Application Information

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IPC IPC(8): A01N43/54A01P13/00A01N43/36A01N43/40
Inventor 吴宏博虎彪金莎莎
Owner 河南中天恒信生物化学科技有限公司
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