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Weeding composition for cotton field

A herbicidal composition and cotton technology, applied in the field of pesticides, can solve problems such as no herbicides found, poor weed control effect, impact on cotton yield, etc., and achieve the effects of low cost, little environmental pollution, and low residues

Inactive Publication Date: 2009-12-09
HEFEI XINGYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the main weeds in cotton fields: purslane, iron amaranth, retroverted amaranthus, etc., pendimethalin, acetochlor, trifluralin, etc. are mainly used for control at present. They mainly control gramineous weeds and some broad-leaved weeds, but the control effect on purslane, iron amaranth, retroflexus and other weeds is very poor
From this point of view, the main weeds in cotton fields are broad-leaved weeds, and most of the control of weeds in cotton fields currently uses gramineous herbicides, and no herbicides for the control of broad-leaved weeds in cotton fields have been found. This defect has a great impact on the yield of cotton

Method used

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  • Weeding composition for cotton field

Examples

Experimental program
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Effect test

Embodiment 1

[0010] Example 1. The weight ratio and preparation method of each component of 17% pyrimethoxazine·quizalofop-p-ethyl emulsifiable concentrate: take 7kg of pyrimethoxazine, 10kg of quizalofop-p-ethyl, 8kg of DMSO, 5kg of methanol, 10kg of 8220, xylene 60kg. Add xylene, DMSO and methanol into the reaction kettle in turn, add sulfamethoxazole after stirring, stir, add quizalofop-p-ethyl after being completely dissolved, stir, add emulsifier 8220 after being completely dissolved, and stir to obtain 17 % Syringomyelt · quizalofop emulsifiable concentrate.

Embodiment 2

[0011] Embodiment 2. Each component weight ratio and preparation method of 20% pyrimethox-fen-carboxyfen emulsifiable concentrate: take 8kg of sulfamethoxazole, 12kg of carboxyfenflufen, 10kg of DMSO, 5kg of methanol, 8221 10kg, xylene 55kg.

[0012] The preparation method is the same as in Example 1.

Embodiment 3

[0013] Example 3. The weight ratio and preparation method of each component of 45% sulfentrazone and clethodim oil suspension agent: take 14kg of sulfamethoxazole, 31kg of clethodim, 2kg of white carbon black, 3517 8kg, oleic acid Methyl ester 45kg. After mixing the above-mentioned components, wet pulverization was used to make the average particle diameter be 5 μm or less to obtain a 45% sulfentrazone and clethodim oil suspension.

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PUM

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Abstract

The invention discloses a weeding composition for a cotton field. The weeding composition is prepared by combining a pyrithiobac weedicide as an active ingredients and any one of a quizalofop-ethyl weedicide, a haloxyfop-P-methyl weedicide, a clethodim weedicide and a fluazifop-P-butyl weedicide; and the weight ratio of two materials is 1:20-20:1. The composition can be made into missible oil, oil deflocculant and the like according to a well-known method. The weeding composition has the characteristics of high-efficient weeding effect, wide weeding spectrum, little use amount, low residue, safety to crop, low cost, small environmental pollution, little use amount, convenient use and the like.

Description

Technical field: [0001] The invention relates to a herbicidal composition for cotton fields, belonging to the technical field of pesticides. Background technique: [0002] Cotton is one of the main economic crops in my country, and effective control and weed control in cotton fields is one of the main methods to improve cotton yield. For the main weeds in cotton fields: purslane, amaranth, amaranth, etc., pendimethalin, acetochlor, trifluralin, etc. are currently used for control, which mainly control grass weeds and some However, the control effect on weeds such as purslane, iron amaranth, and amaranth is very poor. From this point of view, the main weeds in cotton fields are broad-leaved weeds. At present, most of the weeds in cotton fields are controlled by grass herbicides, and no herbicides have been found to control broad-leaved weeds in cotton fields. This defect has a great impact on the yield of cotton. In order to increase the cotton yield of cotton farmers, the...

Claims

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Application Information

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IPC IPC(8): A01N43/60A01N43/54A01N43/40A01N41/12A01P13/00
Inventor 赵邦斌丁云好姚海波王龙方江升
Owner HEFEI XINGYU CHEM
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