阅读说明：本技术 一种椰子油助剂及其制备方法和应用 (Coconut oil auxiliary agent and preparation method and application thereof ) 是由 于朋 张利辉 于 2020-06-23 设计创作，主要内容包括：本发明公开一种椰子油助剂及其制备方法和应用,所述椰子油助剂原料包括：椰子油25-35份,正己醇45-50份,吐温-80 5-15份,SP-80 1-5份,助乳化剂1-15份；制备方法包括将吐温-80和SP-80在正己醇中进行复配得水相,再向所得水相中加入助乳化剂搅拌混合,加入椰子油在温水中搅拌以充分混合,冷却后得到椰子油助剂。4％烟嘧磺隆75mL以及用水量的0.5％的椰子油助剂对玉米田杂草的株数防效和鲜重防效分别为91.28％和99.54％。(The invention discloses a coconut oil auxiliary agent and a preparation method and application thereof, wherein the coconut oil auxiliary agent comprises the following raw materials: 25-35 parts of coconut oil, 45-50 parts of n-hexanol, 15-15 parts of tween-805, 5-5 parts of SP-801 and 1-15 parts of a coemulsifier; the preparation method comprises compounding tween-80 and SP-80 in n-hexanol to obtain water phase, adding co-emulsifier into the water phase, stirring, adding coconut oil, stirring in warm water to mix thoroughly, and cooling to obtain coconut oil adjuvant. 75mL of 4 percent nicosulfuron and 0.5 percent of coconut oil auxiliary agent of water consumption respectively account for 91.28 percent of plant number control effect and 99.54 percent of fresh weight control effect on weeds in a corn field.)

1. The coconut oil additive is characterized by comprising the following raw materials in parts by mass:

25-35 parts of coconut oil, namely,

45-50 parts of n-hexanol,

tween-805-15 in certain weight proportion,

SP-801-5 parts of a mixture of (A),

1-15 parts of auxiliary emulsifier.

2. The coconut oil co-agent of claim 1 wherein the co-emulsifier comprises an anti-freeze agent, a defoamer.

3. The coconut oil adjuvant of claim 1 wherein the coconut oil adjuvant is a cream.

4. A method of preparing a coconut oil co-agent as claimed in any one of claims 1 to 3 comprising the steps of:

compounding tween-80 and SP-80 in n-hexanol to obtain water phase, adding co-emulsifier into the water phase, stirring, adding coconut oil, stirring in warm water to mix thoroughly, and cooling to obtain coconut oil adjuvant.

5. The method of preparing the coconut oil adjuvant according to claim 4, characterized in that the warm water temperature is 30-40 ℃.

6. Use of a coconut oil co-agent according to any one of claims 1-3 for weed control.

7. Use of the coconut oil adjuvant according to claim 6 for weed control, characterized by its synergistic activity against herbicides.

8. The use of the coconut oil adjuvant in the control of weeds according to claim 7, characterized by having synergistic activity against nicosulfuron against weeds in corn fields.

9. The application of the coconut oil auxiliary agent in the aspect of weed control according to claim 8 is characterized in that the coconut oil auxiliary agent with the dosage of 4% nicosulfuron of 75mL and the water quantity of 0.5% is diluted by adding 30kg of water and sprayed according to the mass fraction.

Technical Field

The invention relates to the technical field of agricultural plants, and particularly relates to a coconut oil auxiliary agent and a preparation method and application thereof.

Background

The herbicide is widely used for agriculture, forestry and animal husbandry production, environmental and household sanitation, pest and disease control, industrial product mildew and moth prevention and the like. In order to seek the effect, the herbicide is used in a large amount, and the problems of phytotoxicity, drug resistance, herbicide residue and the like occur. In order to control the amount of herbicide used, the department of agriculture proposes a "double reduction" policy.

One of the methods of controlling the amount of herbicide used may be to use an agricultural builder. The development of the agricultural synergistic additive is probably divided into three times: surfactant type auxiliary agents and mineral oil type auxiliary agents, organic silicon auxiliary agents and vegetable oil type auxiliary agents; the development is towards the direction of environmental protection and high efficiency.

The vegetable oil type auxiliary agent is a spraying auxiliary agent which takes natural vegetable oil as a raw material, has good biodegradability and wide application range to the environment, can be used as a formula auxiliary agent to be added into pesticide products, and is a spraying auxiliary agent with the greatest development prospect. Compared with common mineral oil, nonionic surfactant, liquid fertilizer and the like, the vegetable oil type auxiliary agent has good safety, drought resistance, high temperature resistance, more obvious drug effect increase and more environmental protection. The vegetable oil auxiliary agents on the market are fewer in types compared with other auxiliary agents, so that a larger development space is provided for the vegetable oil spraying auxiliary agents. Coconut oil can be used as the main body of the vegetable oil synergistic agent, and the prior coconut oil synergistic agent utilizes xylene as a solvent. Xylene is an organic solvent with a large use amount in the production of herbicides in China at present, belongs to aromatic hydrocarbon substances, has strong toxicity and is a substance with potential risks to human beings and the environment. The dosage of dimethylbenzene is not more than 10% proposed in the list of forbidden herbicides and adjuvants (draft of comments), and the content of dimethylbenzene in the existing adjuvants is far more than 10%. Therefore, a more environmentally friendly solvent is required.

Disclosure of Invention

In order to solve the technical problems, the invention provides a coconut oil auxiliary agent and a preparation method and application thereof, wherein n-hexanol is used for replacing dimethylbenzene as a solvent of the coconut oil auxiliary agent, so that the coconut oil auxiliary agent is more environment-friendly.

The invention provides a coconut oil auxiliary agent which comprises the following raw materials in parts by weight:

25-35 parts of coconut oil, namely,

45-50 parts of n-hexanol,

tween-805-15 in certain weight proportion,

SP-801-5 parts of a mixture of (A),

1-15 parts of auxiliary emulsifier.

Preferably, the coemulsifier comprises an antifreeze agent and a defoaming agent.

Preferably, the coconut oil auxiliary agent is missible oil.

The invention also provides a preparation method of the coconut oil auxiliary agent, which comprises the following steps:

compounding tween-80 and SP-80 in n-hexanol to obtain water phase, adding co-emulsifier into the water phase, stirring, adding coconut oil, stirring in warm water to mix thoroughly, and cooling to obtain coconut oil adjuvant.

Preferably, the warm water temperature is 30-40 ℃.

The invention also provides application of the coconut oil auxiliary agent in weed control.

Preferably, the application in the aspect of synergistic activity for preventing and killing weeds of the herbicide.

Preferably, the herbicide has synergistic activity for preventing and killing weeds in corn fields by nicosulfuron.

Preferably, the dosage per mu is 75mL of 4 percent nicosulfuron and coconut oil auxiliary agent accounting for 0.5 percent of water consumption by mass fraction, and 30kg of water is added for dilution and spraying.

Compared with the prior art, the invention has the following beneficial effects:

(1) the xylene is used in a large amount in pesticides, so that the harm to the environment, people and livestock is caused, and the use amount of the xylene needs to be reduced; n-hexanol is less toxic than xylene and is not a carcinogen; after being compounded with coconut oil, the synergistic effect on the herbicide is superior to that of dimethylbenzene;

(2) the coconut oil auxiliary agent prepared by taking n-hexanol as a solvent can obviously reduce the surface tension of the liquid medicine, so that the wetting and attaching capacities of the liquid medicine on the weed leaves are also improved; the increase of the expanding diameter of the liquid medicine on the target plant leaves can increase the coverage area of the liquid medicine on the surfaces of the weeds and promote the absorption and the penetration of the herbicide. The coconut oil auxiliary agent prepared by taking the n-hexanol as the solvent has stronger spreadability and creates conditions for the absorption and permeation of the nicosulfuron on the leaves.

(3) The coconut oil auxiliary agent prepared by the invention does not contain substances harmful to the environment and crops, so that the coconut oil auxiliary agent is safe to target crops; the control effect of 100mL of 4% nicosulfuron on the number of corn field weeds and the fresh weight control effect of the nicosulfuron on the corn field weeds are 87.5% and 88.56%, respectively, while the control effect of 75mL of 4% nicosulfuron per mu plus 0.5% of coconut oil adjuvant (CN108124858A) on the number of corn field weeds and the fresh weight control effect of 89.25% and 92.03%, respectively (the difference between the experimental data of the invention and the data in CN108124858A is caused by different factors in various aspects such as illumination conditions, climate and operating conditions under different experimental time conditions), and the control effect of 75mL of 4% nicosulfuron per mu plus 0.5% of water consumption on the number of corn field weeds and the fresh weight control effect of the coconut oil adjuvant of the invention are 91.28% and 99.54%, respectively.

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.

It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.