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Weeding composition containing halosulfuron-methyl and clopyralid and application thereof

A technology of clopyralid and clopyrazosulfuron-methyl, which is applied in the field of pesticides, can solve the problems of herbicide damage to millet and the lack of herbicides, and achieve high safety, high control effect, and the effect of expanding the herbicide spectrum

Active Publication Date: 2022-03-01
INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, chemical weeding is the most economical and effective means of weed control in farmland, but most herbicides are likely to cause phytotoxicity to millet, and there are few herbicides in corn fields and corn fields; There is no report on the herbicidal combination of chlorpyrazosulfuron-methyl and clopyralid compounded and applied to millet fields and corn fields for weeding

Method used

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  • Weeding composition containing halosulfuron-methyl and clopyralid and application thereof
  • Weeding composition containing halosulfuron-methyl and clopyralid and application thereof
  • Weeding composition containing halosulfuron-methyl and clopyralid and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: 5% clopyrazosulfuron-clopyralid water dispersible granules (5:5)

[0022] In the herbicidal composition containing clopyrazosulfuron-methyl and clopyralid, the mass percentage content of each component is: clopyrazosulfuron-methyl 2.5%, clopyralid 2.5%, alkyl sodium sulfate 2%, p-methyl Oxygen fatty acid amidobenzenesulfonate sodium 5%, attapulgite to make up the balance.

[0023] The process steps are as follows: mix the original drug, additives and fillers according to the mass ratio, and then pulverize with a jet mill to obtain mother powder, mix with water, disperse evenly with a homogeneous disperser, extrude and granulate, and dry in a fluidized bed 1. Water-dispersible granules can be produced after granules are screened, and the finished products are finished after passing the test.

[0024] Alkyl sodium sulfate is used as an anionic surface penetrant to enhance the spread and adhesion of the medicinal solution on the plant surface, and significantly...

Embodiment 2

[0025] Example 2: 95% clopyrazosulfuron-clopyralid water dispersible granules (2:8)

[0026] In the herbicidal composition containing clopyrazosulfuron-methyl and clopyralid, the mass percentage content of each component is: clopyrazosulfuron-methyl 19%, clopyralid 76%, alkyl sodium 1%, p-formazine Oxygen fatty acid amidobenzene sulfonate sodium 1%, attapulgite to make up the balance.

[0027] The process steps are as follows: mix the original drug, additives and fillers according to the mass ratio, and then pulverize with a jet mill to obtain mother powder, mix with water, disperse evenly with a homogeneous disperser, extrude and granulate, and dry in a fluidized bed 1. Water-dispersible granules can be produced after granules are screened, and the finished products are finished after passing the test.

Embodiment 3

[0028] Example 3: 30% clopyrazosulfuron-clopyralid water dispersible granules (1:5)

[0029] In the herbicidal composition containing clopyrazosulfuron-methyl and clopyralid, the mass percent content of each component is: clopyrazosulfuron-methyl 5%, clopyralid 25%, calcium alkylbenzene sulfonate 5%, Sodium polycarboxylate 10%, kaolin to make up the balance.

[0030] The process steps are as follows: mix the original drug, additives and fillers according to the mass ratio, and then pulverize with a jet mill to obtain mother powder, mix with water, disperse evenly with a homogeneous disperser, extrude and granulate, and dry in a fluidized bed 1. Water-dispersible granules can be produced after granules are screened, and the finished products are finished after passing the test.

[0031] Calcium alkylbenzene sulfonate is used as an emulsifier and surfactant, which also makes the dosage form easier to make.

[0032] As a dispersant, sodium polycarboxylate is less sensitive to i...

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Abstract

The invention discloses a weeding composition containing halosulfuron-methyl and clopyralid and application of the weeding composition, and relates to the technical field of pesticides, the weeding composition comprises effective components of halosulfuron-methyl and clopyralid, the mass part ratio of halosulfuron-methyl to clopyralid is (1-5): (5-25), the halosulfuron-methyl and clopyralid account for 5%-95% of the total mass of the composition, and the balance is water. The composition can be prepared into a water dispersible granule or a dispersible oil suspending agent, the composition is applied to prevention and treatment of harmful plants in crops, the composition is applied to prevention and treatment of harmful plants in millet fields and corn fields, the synergistic effect is obvious after the halosulfuron-methyl and the clopyralid are compounded, and the composition can be applied to prevention and treatment of harmful plants in the millet fields and the corn fields. The weeding composition shows an obvious combined synergistic effect on common weeds in millet fields, expands the weed control spectrum, and has a relatively high control effect on common weeds in millet fields and corn fields.

Description

Technical field [0001] The present invention relates to the technical field of pesticides, and in particular to a herbicidal composition containing chlorpyrazosulfuron and clopyralid and its application. Background technique [0002] Millet and corn are important food crops in my country. They have a long history of cultivation and are of great significance to ensuring my country's food security. [0003] At present, the herbicides widely used in the treatment of stems and leaves in millet fields are 2,4-D-butyl ester, sodium dimethyl tetrachloride, isooctyl cloflufenate, etc. However, these herbicides have safety concerns on millet during use. Low, easy to drift, causing phytotoxicity to sensitive plants, narrow herbicidal spectrum, and difficult to clean spray equipment. The commonly used herbicide in corn fields is nicosulfuron, which is easy to cause phytotoxicity to corn and has poor control effect on some broad-leaf weeds. [0004] The English common name of chlorpyr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/40A01P13/00A01G13/00
CPCA01N47/36A01N43/40A01G13/00
Inventor 李秉华王贵启刘小民许贤赵铂锤
Owner INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI
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