Herbicide compound specially used for removing polygonum perfoliatum

A herbicide and compound technology, applied in the field of pesticides, can solve the problems of short residual period, poor herbicidal effect and large residual amount.

Inactive Publication Date: 2015-11-18
ANHUI JINSHUIYUAN ECOLOGICAL AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, herbicide residues in the soil affect the persistence of herbicides and the safety of the environment
From the aspect of weed control, herbicides should have a certain residual period. If the residual period is too short, the weeding effect will not be good, but if the residual period is too long, it will cause phytotoxicity to the recommended crops.
However, from an environmental point of view, the shorter the residual period of herbicides, the better. Herbicides are too stable, not easy to degrade, and have a large amount of residues in the environment, which will cause environmental pollution.

Method used

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  • Herbicide compound specially used for removing polygonum perfoliatum
  • Herbicide compound specially used for removing polygonum perfoliatum
  • Herbicide compound specially used for removing polygonum perfoliatum

Examples

Experimental program
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Effect test

preparation example Construction

[0034] The preparation method of the mixture of octylphenol polyoxyethylene ether sulfonate and linear sodium alkylbenzene sulfonate includes:

[0035] The first step is the chlorination of octylphenol polyoxyethylene ether;

[0036] The second step is the sulfonation of chlorinated octylphenol polyoxyethylene ether

[0037] In the third step, octylphenol polyoxyethylene ether sulfonate and linear alkylbenzene sulfonate are mixed according to (4-6):1.

[0038] The first step is further specifically adding octylphenol polyoxyethylene ether (OP-4) and pyridine at a molar ratio of 1:1 into the reaction vessel, and adding thionyl chloride and chlorine dropwise under a constant temperature water bath. The molar ratio of sulfoxide to octylphenol polyoxyethylene ether is 1.5:1, and the reaction is stirred at 70℃~80℃ for 2h to synthesize and obtain chlorooctylphenol polyoxyethylene ether.

[0039] The second step is further specifically adding chlorooctylphenol polyoxyethylene ether to water, ...

Embodiment 1

[0049] Example 1 Mixture of octylphenol polyoxyethylene ether sulfonate and linear sodium alkylbenzene sulfonate

[0050] Mix 10mol of octylphenol polyoxyethylene ether (OP-4) and 10mol of pyridine into the reaction vessel, add 15mol of thionyl chloride dropwise under the condition of constant temperature water bath, stir and react at 80℃ for 2h to synthesize chlorooctane Phenol polyoxyethylene ether, take the obtained 7.5mol chlorooctylphenol polyoxyethylene ether and add it to water, the mass ratio of chlorooctylphenol polyoxyethylene ether to water is 1:1.5, and then add 5mol sulfonating agent Sodium sulfite (Na 2 SO 3 ), placed in an autoclave, and reacted for 8 hours at 150°C under vigorous stirring to obtain a light yellow viscous substance. Dissolve the crude product with a mixture of isopropanol and water in a volume ratio of 2:1, and then extract with petroleum ether , To remove unreacted raw materials and other oil-soluble impurities, separate the lower layer by vacuum ...

Embodiment 2

[0051] Example 2 Microemulsion 1

[0052] Quinclorac, 30 g of penoxsulam, 45 g of mefenacet, 10 g of mefenacet, 15 g of surfactant prepared in Example 1, 250 g of emulsifier alkyl naphthalene sulfonate, and 150 g of cosolvent ethanol , 40g of antifreeze formamide and 30g of synergist butadiene were put into the reactor, stirred evenly and completely dissolved, slowly added 800g of water, and continued to mix and stir for 2h to obtain a microemulsion.

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Abstract

The invention provides a herbicide compound specially used for removing polygonum perfoliatum. The raw materials of the herbicide compound comprise effective active ingredients and a surfactant, wherein the effective active ingredients comprise quinclorac, penoxsulam, imazapic and mefenacet. The herbicide compound provided by the invention has the excellent effect on removing the polygonum perfoliatum weed and is safe, efficient, good in drug degradation effect, and fewer in residue.

Description

Technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicide compound used in blueberry fields for removing cat's paw spines. Background technique [0002] Cat's claw is the whole plant of Polygonaceae. Its nature and taste are sour and bitter, flat, beneficial to water swelling, clearing away heat, promoting blood circulation, and detoxifying. It mainly treats edema, jaundice, diarrhea, malaria, dysentery, whooping cough, diarrhea, erysipelas, scrofula, eczema, and scabies. Cat's claw is the root tuber of the buttercup plant Ranunculus. Its nature and flavor are sweet, pungent and warm. It has the effect of reducing swelling and cutting malaria. It is mainly used to treat scrofula, tuberculosis, malaria and other diseases; it is clinically used to treat lung cancer in modern times. In blueberry plantations, there are often cat's claws competing with blueberries for fertilizer and water, and it is also easy to spread diseases a...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01N43/90A01N25/04A01N25/30A01P13/00A01N43/78A01N43/50A01N43/42
Inventor秦赤杨春香
OwnerANHUI JINSHUIYUAN ECOLOGICAL AGRI