CN111184016A

CN111184016A - Herbicide composition

Info

Publication number: CN111184016A
Application number: CN201911334431.0A
Authority: CN
Inventors: 杜传玉; 赵明鑫; 周德伟; 蒋玉山
Original assignee: Suihua Heilongjiang Province Nongken Morning Biological Agent Co Ltd
Current assignee: Suihua Heilongjiang Province Nongken Morning Biological Agent Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-05-22

Abstract

The invention belongs to the technical field of pesticides, and particularly discloses a herbicide composition, which comprises the effective components of nicosulfuron, tembotrione and terbuthylazine, wherein the weight ratio of the nicosulfuron to the tembotrione to the terbuthylazine is 1-30: 1-30. The herbicide composition has very obvious synergistic effect on weeding in corn fields, has small dosage, has little residue on corn field crops, is green and environment-friendly, and fully reflects the national requirements of pesticide reduction application, safety, green and environment protection.

Description

Herbicide composition

Technical Field

The invention belongs to the technical field of pesticides, and particularly relates to a herbicide composition.

Background

The weeds in the corn field are common and various, when the corns in the seedling stage are damaged by the weeds, the plants are short and small, the stems and leaves are yellow, the poor growth of the corns in the middle and later stages is caused, and the yield is reduced seriously, so the chemical control of the weeds in the corn field is carried out in two key stages of pre-emergence and early-emergence after sowing. The tembotrione is mainly used for preventing and controlling various gramineous weeds and broadleaf weeds in a corn field, but has poor prevention effect on part of gramineous weeds and broadleaf weeds, so that the single use of the tembotrione cannot well prevent and control the weeds in the corn field.

Disclosure of Invention

The invention aims to provide a herbicide composition with an expanded control range, good control effect and less residue.

A herbicide composition contains nicosulfuron, tembotrione and terbuthylazine as effective components.

The weight ratio of the nicosulfuron to the temozolone to the terbuthylazine is 1-30: 1-30.

The weight ratio of the nicosulfuron to the temozolone to the terbuthylazine is 1-10: 1-15: 1-30.

Wherein, in the herbicide composition, the active ingredients account for 1 to 60 percent of the total weight of the composition.

The dosage form of the herbicide composition is a suspending agent, a dispersible oil suspending agent, wettable powder or a water dispersible granule.

The weight ratio of each component in the suspending agent of the herbicide composition is as follows: 1-60% of nicosulfuron, tembotrione and terbuthylazine, 3-9% of a dispersant, 0.2-3% of a thickening agent, 1-3% of an antifreezing agent, 1-3% of a wetting agent and the balance of water.

Wherein, the dispersing agent of the herbicide composition is at least one selected from polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylbenzene sulfonic acid calcium salt, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ester or glycerin fatty acid ester polyoxyethylene ether;

the thickening agent is at least one of xanthan gum, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose, methyl cellulose, carboxyethyl cellulose, Arabic gum, sodium polyacrylate, white carbon black, magnesium aluminum silicate or organic bentonite;

the antifreezing agent is at least one of ethylene glycol, glycerol, polyethylene glycol, urea or sorbitol;

the wetting agent is at least one of sodium dodecyl sulfate, calcium dodecyl benzene sulfonate, alkyl naphthalene sulfonate, polyoxyethylene triphenyl ethylene phenyl phosphate, Chinese honeylocust fruit powder, silkworm excrement or soapberry powder.

The weight ratio of each component in the dispersible oil suspending agent of the herbicide composition is as follows: 1-60% of nicosulfuron, tembotrione and terbuthylazine, 7-15% of emulsifier, 3-9% of dispersant, 0.2-3% of thickener and the balance of solvent.

The emulsifier of the herbicide composition is at least one of calcium dodecyl benzene sulfonate, phenethyl phenol polyoxyethylene ether, polysorbate, sorbitan fatty acid ester, phenethyl phenol polyoxypropylene ether, alkylphenol polyoxyethylene ether formaldehyde condensate, fatty alcohol polyoxyethylene ether, tributyl phenol polyoxyethylene ether or phenethyl phenol polyoxyethylene ether formaldehyde condensate;

the dispersing agent is selected from at least one of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, calcium alkylbenzene sulfonate, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ester or glycerin fatty acid ester polyoxyethylene ether;

the solvent is at least one of corn oil, soybean oil, rapeseed oil or methyl oleate.

The invention has the beneficial effects that:

the herbicide composition has very obvious synergistic effect on weeding in corn fields, has less dosage, has less residue on crops in the corn fields, is green and environment-friendly, and fully reflects the national requirements of pesticide reduction application, safety, green and environment protection.

Detailed Description

The following examples are provided to further illustrate the embodiments of the present invention and are not intended to limit the scope of the present invention.

The starting materials used in the following examples are all commercially available.

Example 1

Consists of the following components: 10kg of nicosulfuron, 10kg of tembotrione, 10kg of terbuthylazine, 3kg of phenethyl phenol polyoxyethylene ether, 2kg of xanthan gum, 1kg of ethylene glycol, 1kg of sodium dodecyl sulfate and the balance of water to 100 kg.

The preparation method comprises the following steps: the components are mixed evenly and then are sanded in a sand mill until the grain diameter is below 5mm, and the suspending preparation of the herbicide is prepared.

Example 2

Consists of the following components: 10kg of nicosulfuron, 15kg of tembotrione, 30kg of terbuthylazine, 9kg of phenethyl phenol polyoxyethylene ether, 3kg of xanthan gum, 3kg of ethylene glycol, 3kg of sodium dodecyl sulfate and the balance of water to 100 kg.

Example 3

Consists of the following components: 6kg of nicosulfuron, 13kg of tembotrione, 22kg of terbuthylazine, 10kg of calcium dodecyl benzene sulfonate, 6kg of phenethyl phenol polyoxyethylene ether, 2.5kg of xanthan gum and enough to 100kg of methyl oleate.

The preparation method comprises the following steps: the raw materials are evenly mixed and ground in a sand mill until the grain diameter of 95 percent of the materials is below 5um, and then the dispersible oil suspension preparation of the herbicide is obtained.

Test example 1, field efficacy test.

Reagent to be tested: the herbicides prepared in examples 1 to 3.

And (3) trial crop: corn (corn)

Control target: weeds in corn fields.

The test method comprises the following steps: various medicaments are accurately weighed according to the area of a test cell, diluted by water and uniformly sprayed by a sprayer.

After the test, weed death was observed at 20d and 40d after the application, respectively, and the herbicidal activities of the respective agents were compared.

TABLE 1 field test results of efficacy (post-dose 20d)

Treatment agent	Dosage (g/mu)	Cyperaceae controlling effect/%)	Gramineae control efficacy/%)	Broad leaf weed control/%	Total prevention/%
						Example 1	16	88	85	87	86
Example 2	12	94	93	95	94
						Example 3	12	89	90	92	91

TABLE 2 field efficacy test results (post-drug 40d)

Treatment agent	Dosage (g/mu)	Cyperaceae controlling effect/%)	Gramineae control efficacy/%)	Broad leaf weed control/%	Total prevention/%
						Example 1	16	87	85	88	86
Example 2	12	94	94	95	94
						Example 3	12	90	91	92	91

As can be seen from tables 1 and 2, the herbicide composition has obvious control effect on gramineous weeds, cyperaceae weeds and broadleaf weeds, has obvious synergism and long lasting period.

Claims

1. A herbicidal composition characterized by: the active ingredients comprise nicosulfuron, tembotrione and terbuthylazine.

2. The herbicidal composition of claim 1, wherein: the weight ratio of the nicosulfuron to the temozolone to the terbuthylazine is 1-30: 1-30.

3. A herbicidal composition according to claim 2, characterized in that: the weight ratio of the nicosulfuron to the temozolone to the terbuthylazine is 1-10: 1-15: 1-30.

4. A herbicidal composition according to any one of claims 1 to 3, characterized in that: the active ingredients in the herbicide account for 1 to 60 percent of the total weight of the whole composition.

5. The herbicidal composition of claim 4, wherein: the dosage form of the herbicide is a suspending agent, a dispersible oil suspending agent, wettable powder or water dispersible granules.

6. A herbicidal composition according to claim 5, characterized in that: the suspending agent comprises the following components in percentage by weight: 1-60% of nicosulfuron, tembotrione and terbuthylazine, 3-9% of a dispersant, 0.2-3% of a thickening agent, 1-3% of an antifreezing agent, 1-3% of a wetting agent and the balance of water.

7. The herbicidal composition of claim 6, wherein: the dispersing agent is selected from at least one of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylbenzene sulfonate calcium salt, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ester or glycerin fatty acid ester polyoxyethylene ether;

8. A herbicidal composition according to claim 5, characterized in that: the weight ratio of each component in the dispersible oil suspending agent is as follows: 1-60% of nicosulfuron, tembotrione and terbuthylazine, 7-15% of emulsifier, 3-9% of dispersant, 0.2-3% of thickener and the balance of solvent.

9. The herbicidal composition of claim 8, wherein: the emulsifier is at least one of calcium dodecyl benzene sulfonate, phenethyl phenol polyoxyethylene ether, polysorbate, sorbitan fatty acid ester, phenethyl phenol polyoxypropylene ether, alkylphenol polyoxyethylene ether formaldehyde condensate, fatty alcohol polyoxyethylene ether, tributyl phenol polyoxyethylene ether or phenethyl phenol polyoxyethylene ether formaldehyde condensate;

the dispersing agent is selected from at least one of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylbenzene sulfonate calcium salt, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ester or glycerin fatty acid ester polyoxyethylene ether;