阅读说明：本技术 一种除草剂增效组合物、悬乳剂、制备工艺及用途 (synergistic herbicide composition, suspoemulsion, preparation process and use ) 是由 吴承骏 张子翱 罗中华 包月娥 于 2019-10-19 设计创作，主要内容包括：本发明涉及农药的技术领域,公开了一种除草剂增效组合物,包括苯嘧磺草胺、精草铵膦和高效氟吡甲禾灵。对田间的草本杂草和阔叶杂草的防效表现出协同增效的作用,克服了单剂防治杂草的局限性,实现一次用药就能够去除田间杂草的效果。(The invention relates to the technical field of pesticides, and discloses a herbicide synergistic composition which comprises saflufenacil, glufosinate-ammonium and haloxyfop-methyl.)

1. synergistic herbicide composition, which is characterized by comprising saflufenacil, glufosinate-ammonium and haloxyfop-methyl.

2. The synergistic herbicide composition as claimed in claim 1, wherein the weight ratio of saflufenacil to glufosinate-ammonium to haloxyfop-methyl is (2-6): (30-90): (1-5).

3. The synergistic herbicide compositions as claimed in claim 1 or 2, wherein the synergistic herbicide compositions are in the form of suspoemulsion, dispersible oil suspension, or water dispersible granule.

4, suspoemulsions containing the synergistic herbicide composition of claim 1 or 2, characterized in that the suspoemulsions comprise, by weight, 48-56 parts of water, 30 parts of glufosinate-ammonium, 1-2.5 parts of haloxyfop-R-methyl, 2-6 parts of cyclohexanone, 3-6 parts of an emulsifier, 1-2 parts of saflufenacil, 3-4 parts of a dispersant, 0.6-1.1 parts of a thickener and 1 part of a preservative.

5. The process for preparing suspoemulsions containing the synergistic herbicidal compositions as claimed in claim 1 or 2, according to claim 4, which comprises the steps of:

s1: firstly, preparing 30 parts by weight of refined glufosinate-ammonium into a refined glufosinate-ammonium aqueous solution for later use by using 48-56 parts by weight of water;

s2: 1-2.5 parts of haloxyfop-R-methyl by weight is dissolved by cyclohexanone;

s3: adding 3-6 parts by weight of an emulsifier into S2, and stirring to completely dissolve the emulsifier;

s4: adding the refined glufosinate-ammonium aqueous solution prepared in the step S1 to the liquid treated in the step S3, and stirring while adding the refined glufosinate-ammonium aqueous solution; after the addition of the refined glufosinate-ammonium aqueous solution is finished, continuously stirring the mixture until the phase inversion state is achieved;

s5: subjecting the liquid after the treatment of S4 to high shear for 30 min;

s6: adding the following substances in parts by weight into the liquid after the S5 treatment: 1-2 parts of saflufenacil, 3-4 parts of a dispersing agent, 0.6-1.1 parts of a thickening agent and 1 part of a preservative, and continuously shearing for 30min after the addition is finished;

s7: sanding the liquid treated by the S6 to ensure that the particle size D90 in the liquid is less than 5 um;

the suspension emulsion is prepared by the 7 steps.

6. The process for preparing suspoemulsions containing the synergistic herbicide compositions as claimed in claim 1 or 2, according to claim 5, wherein the S6 further comprises 1 part by weight of a wetting agent.

7. Use of kinds of herbicide synergistic compositions as claimed in claim 1 for controlling weeds.

Technical Field

The invention relates to the technical field of pesticides, in particular to herbicide synergistic compositions, suspoemulsion, a preparation process and application.

Background

In recent years, new compounds for pesticide development are required to be high, the requirement on high pesticide effect, high safety and high selectivity is required, the problem of can be solved by reasonably compounding and using the existing compounds under the condition of long time and huge cost, and the compounds can be divided into organic pesticides, inorganic pesticides, plant pesticides and microbial pesticides according to raw material sources.

Saflufenacil, other names: babaijin, the molecular formula is: c₁₇H₁₇ClF₄N₄O₅S, chemical name: n' - [ 2-chloro-4-fluoro-5- (3-methyl-2, 6-dioxo-4 (trifluoromethyl) -3, 6-dihydro-1 (2H) -pyrimidine) benzoyl]Saflufenacil is biocidal herbicides, is protoporphyrinogen oxidase (PPO) inhibitor, is easily absorbed by roots, buds and leaves, is conducted through xylem, has quick killing effect and rapid degradation of soil residue, and can effectively control various broadleaf weeds on more than 30 crops such as corn, sorghum, rice, soybean, fruit trees and the like, including weeds resistant to glyphosate and ALS inhibitors, such as chenopodium quinoa, horseweed herb, russia thistle, amaranthus palmeri, ragweed and the like.

The chemical formula of the refined glufosinate-ammonium is C₅H₁₂NO₄P has a formula weight of 181.27 and a chemical name of 4- [ hydroxy (methyl) phosphono group]L-homoalanine is L-type glufosinate-ammonium, is easy to dissolve in water, is not easy to dissolve in an organic solvent, is stable to light, has a melting point of 214-216 ℃, and is high-efficiency, low-toxicity and non-selective contact-killing type phosphoric acid herbicides.

haloxyfop-R-methyl, other names: high-efficient grass covering can, the molecular formula: c₁₅H₁₁ClF₃NO₄The chemical name is: 2- [4- (3-chloro-5-trifluoromethyl-2-pyridinyloxy) phenoxy]The high-efficiency haloxyfop-methyl is kinds of selective herbicides, the pesticide effect can be quickly absorbed by leaves of gramineous weeds and conducted to the whole plant to inhibit the growth of plant meristems, thereby killing the weeds.

However, when the herbicide is used for controlling weeds in fields, the herbicide has low plant control effect and fresh weight control effect on the weeds when the herbicide is used singly, so that the weed control effect in the fields is poor when the herbicide is used singly.

Disclosure of Invention

The purpose of the invention is to provide synergistic composition of herbicides, which has a synergistic effect on the control of herbaceous weeds and broadleaf weeds in the field, overcomes the limitation of single-agent weed control, and realizes the effect of removing weeds in the field after times of application.

The technical purpose of the invention is realized by the following technical scheme:

synergistic herbicide composition including saflufenacil, glufosinate-ammonium and haloxyfop-methyl.

By adopting the technical scheme, the synergistic effect is shown on the control effect of the herbaceous weeds and the broadleaf weeds in the field, the limitation of single-agent weed control is overcome, and the effect of removing the weeds in the field after times of application is realized.

As a further improvement of , the weight ratio of the saflufenacil to the glufosinate-ammonium and the haloxyfop-R-methyl is (2-6): (30-90): 1-5).

As a further improvement of , the synergistic herbicide composition is in the form of suspension emulsion, dispersible oil suspension, or water dispersible granule.

By adopting the technical scheme, the universality of the herbicide synergistic composition can be enhanced by arranging the herbicide synergistic composition into various formulations.

The invention also aims to provide suspoemulsions containing the herbicide synergistic composition, so that operators are safer in use.

The technical purpose of the invention is realized by the following technical scheme:

suspoemulsion containing the herbicide synergistic composition comprises, by weight, 48-56 parts of water, 30 parts of glufosinate-ammonium, 1-2.5 parts of haloxyfop-R-methyl, 2-6 parts of cyclohexanone, 3-6 parts of an emulsifier, 1-2 parts of saflufenacil, 3-4 parts of a dispersant, 0.6-1.1 parts of a thickener and 1 part of a preservative.

By preparing the suspending emulsion, the pollution and the toxicity of organic solvents and dust in pesticide emulsifiable solution and wettable powder to the environment and operators are avoided; meanwhile, the incompatibility of the barrel mixing is avoided, the efficiency is improved, and the irritation and toxicity to the skin and eyes are reduced.

The invention also aims to provide a preparation process of suspoemulsions containing the herbicide synergistic composition.

The technical purpose of the invention is realized by the following technical scheme:

A process for preparing suspoemulsion containing the synergistic herbicide composition includes the following steps:

s1: firstly, preparing 30 parts by weight of refined glufosinate-ammonium into a refined glufosinate-ammonium aqueous solution for later use by using 48-56 parts by weight of water;

s2: 1-2.5 parts of haloxyfop-R-methyl by weight is dissolved by cyclohexanone;

s3: adding 3-6 parts by weight of an emulsifier into S2, and stirring to completely dissolve the emulsifier;

s4: adding the refined glufosinate-ammonium aqueous solution prepared in the step S1 to the liquid treated in the step S3, and stirring while adding the refined glufosinate-ammonium aqueous solution; after the addition of the refined glufosinate-ammonium aqueous solution is finished, continuously stirring the mixture until the phase inversion state is achieved;

s5: subjecting the liquid after the treatment of S4 to high shear for 30 min;

s6: adding the following substances in parts by weight into the liquid after the S5 treatment: 1-2 parts of saflufenacil, 3-4 parts of a dispersing agent, 0.6-1.1 parts of a thickening agent and 1 part of a preservative, and continuously shearing for 30min after the addition is finished;

s7: sanding the liquid treated by the S6 to ensure that the particle size D90 in the liquid is less than 5 um;

the suspension emulsion is prepared by the 7 steps.

By adopting the technical scheme, the haloxyfop-R-methyl is poor in water solubility, so that the haloxyfop-R-methyl is dissolved by using cyclohexanone to prepare an oil phase, and the emulsifier is added into the oil phase, meanwhile, the glufosinate-ammonium is prepared into a glufosinate-ammonium aqueous solution to serve as an aqueous phase, then the aqueous phase is added into the oil phase, and the continuous stirring is carried out, so that the oil phase and the aqueous phase form an emulsion under the action of the emulsifier. Finally, the saflufenacil, the dispersant, the thickener, the wetting agent and the preservative are all added into the emulsion, and the shearing is continued. By the preparation method, the prepared suspension emulsion can not be turbid.

As a further improvement of , the S6 further comprises 1 part by weight of a wetting agent.

The fourth object of the present invention is to provide the use of the above-mentioned herbicide synergistic composition for controlling weeds.

In conclusion, the invention has the advantages and beneficial effects that:

1. by compounding three substances, namely saflufenacil, glufosinate-ammonium and haloxyfop-R-methyl, the synergistic effect is shown on the control effect of herbaceous weeds and broadleaf weeds in the field, the limitation of controlling the weeds by using a single agent is overcome, and the effect of removing the weeds in the field by using times of medicines is realized;

2. by the preparation method, the prepared suspension emulsion can not be turbid and has stronger stability.

Drawings

FIG. 1 is a process flow diagram of the preparation of 1 suspoemulsions containing synergistic combinations of herbicides in example 1;

FIG. 2 is a process flow diagram of a process for preparing the dispersible oil-suspension concentrate of example 3 containing a herbicidal synergistic composition;

FIG. 3 is a process flow chart of a preparation process of the water dispersible granule containing the herbicide synergistic composition of example 5 .

Detailed Description

The present invention is described in further detail with reference to the attached figures.

The synergistic herbicide composition is prepared from saflufenacil, glufosinate-ammonium and haloxyfop-methyl.