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Triclopyr and diuron-based composite herbicide for sugarcane

A technology of clopyroxyacetic acid and compound herbicides, applied in the direction of herbicides and algicides, chemicals for biological control, applications, etc., can solve the problems of herbicide aging, high drug resistance, and high cost of sugarcane weeding , to achieve the effects of improving the effect, slowing down drug resistance, and reducing the effective dose of pesticides

Inactive Publication Date: 2021-06-25
合肥巨卓农业技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a compound herbicide for sugarcane based on triclopyr and diuron, to solve the problems of aging herbicides for sugarcane, high drug resistance, and high cost of weeding sugarcane

Method used

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  • Triclopyr and diuron-based composite herbicide for sugarcane

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Effect test

Embodiment 1

[0024] A compound herbicide for sugarcane based on clopyroxyacetic acid and diuron, the dosage form of the herbicide is a dispersible suspension concentrate, including the following raw materials in percentage by weight: 20% clopyroxyacetic acid, 15% diuron , 3% additives, the balance is propanol.

[0025] Wherein, the auxiliary agent is a mixture of amphiphilic chitosan, sodium carboxymethyl cellulose, epoxidized soybean oil and propanol with an installation mass ratio of 1.5:15:0.5:0.5.

[0026] Wherein, the preparation method of amphiphilic chitosan comprises the following steps:

[0027] Step A: dissolve chitosan in 1% acetic acid aqueous solution, filter out insolubles, add sodium hydroxide to the dissolved filtrate under stirring, obtain a white precipitate, filter; soak the filter cake in distilled water, and adjust the pH of the solution with hydrochloric acid to 7, filter; wash with distilled water several times, then precipitate with acetone, filter, and dry the fil...

Embodiment 2

[0032] A kind of compound herbicide for sugarcane based on clopyroxyacetic acid and diuron, the dosage form of this herbicide is suspension concentrate, comprises the raw material of following percentage by weight: 30% clopyroxyacetic acid, 10% diuron, 6 % additives, the balance is deionized water.

[0033] Wherein, the auxiliary agent is amphiphilic chitosan, sodium carboxymethyl cellulose, epoxidized soybean oil and propanol in a mass ratio of 1:1:1:1.

[0034] Wherein, the preparation method of amphiphilic chitosan comprises the following steps:

[0035] Step A: dissolve chitosan in 1% acetic acid aqueous solution, filter out insolubles, add sodium hydroxide to the dissolved filtrate under stirring, obtain a white precipitate, filter; soak the filter cake in distilled water, and adjust the pH of the solution with hydrochloric acid to 7, filter; wash with distilled water several times, then precipitate with acetone, filter, and dry the filter cake in a vacuum oven at 50°C f...

Embodiment 3

[0040] A compound herbicide for sugarcane based on clopyroxyacetic acid and diuron, the formulation wettable powder of the herbicide includes the following raw materials in percentage by weight: 40% clopyroxyacetic acid, 25% diuron, 8 % auxiliary agent, the balance is the mixture of starch and light calcium carbonate mixed according to the mass ratio of 1:1.

[0041] Wherein, the auxiliary agent is a mixture of amphiphilic chitosan, sodium carboxymethyl cellulose, epoxidized soybean oil and propanol in a mass ratio of 1:1:1:1.

[0042] Wherein, the preparation method of amphiphilic chitosan comprises the following steps:

[0043] Step A: dissolve chitosan in 1% acetic acid aqueous solution, filter out insolubles, add sodium hydroxide to the dissolved filtrate under stirring, obtain a white precipitate, filter; soak the filter cake in distilled water, and adjust the pH of the solution with hydrochloric acid to 7, filter; wash with distilled water several times, then precipitat...

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Abstract

The invention discloses a triclopyr and diuron-based composite herbicide for sugarcane, wherein the composite herbicide comprises the following raw materials in percentage by weight: 1 to 60% of trichlopyr, 1 to 30% of diuron, 3 to 8% of an additive and the balance being a carrier; and the dosage form of the triclopyr and diuron-based compound herbicide for the sugarcane is one of a dispersible suspending agent, a suspending agent, wettable powder and water dispersible granules. Carboxylation modification and alkylation modification are carried out on chitosan to obtain an amphiphilic chitosan surfactant, the amphiphilic chitosan surfactant can be effectively adsorbed on the surfaces of pesticide particles, and the amphiphilic chitosan can be well dispersed in water, so that the dispersibility of a pesticide is improved, and the acting effect of the pesticide is favorably improved; the chitosan is wide in source, biodegradable and good in environmental protection performance; and meanwhile, a compounding technology is utilized, generation of drug resistance is slowed down, and the weeding spectrum of the herbicide is widened.

Description

technical field [0001] The invention belongs to the technical field of pesticide processing, in particular to a compound herbicide for sugarcane based on triclopyr and diuron. Background technique [0002] Sugarcane is the economic crop with the largest planting area in Guangxi, with an annual planting area of ​​about 180 million mu, mainly distributed in the central, southern and southwestern parts of Guangxi, and the planting time is generally concentrated in winter and spring. At this time, the temperature is low and there is little rain. Film mulching can play a very good role in increasing temperature and preserving moisture, and effectively improving the emergence rate of sugarcane. However, the high temperature and high humidity environment under the film is also conducive to the growth of weeds. If the control is not timely, it will be serious. Affect the growth of sugarcane, resulting in reduced sugarcane production. Therefore, before covering the plastic film, the...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N47/30A01P13/00
CPCA01N43/40A01N47/30
Inventor 刘言合陈琦
Owner 合肥巨卓农业技术开发有限公司
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