CN111296454B - Herbicide composition for cotton field, preparation, application and application method thereof - Google Patents
Herbicide composition for cotton field, preparation, application and application method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/26—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/20—N-Aryl derivatives thereof
Abstract
The invention provides a herbicide composition for cotton fields, a preparation, an application and an application method thereof, and relates to the technical field of herbicides. The herbicide composition preparation provided by the invention has the advantages that the herbicide A and the herbicide B are mutually synergistic, after the herbicide composition preparation is applied to cotton fields, the weed control effect is high, the weed control spectrum is wide, the safety is good, the selectivity coefficient between cotton and weeds is obviously higher than that of a single herbicide, the yield increase effect is obvious, the resistance generation of the single herbicide is favorably delayed, the cost is low, and the popularization is easy.
Description
Technical Field
The invention relates to the technical field of herbicides, in particular to a herbicide composition for cotton fields, and a preparation, application and application method thereof.
Background
Cotton belongs to the genus of cotton of the family Malvaceae and is an important source of raw materials for commercial crops and textile fibers in the world. Factors influencing the yield and quality of cotton are various, and weeds are one of the factors restricting the sustainable development of cotton. The area proportion of the cotton field weed is as high as 56 percent, and the yield loss of 14 to 16 percent of cotton is caused each year. Weed hazards include: compete with cotton for light, water, fertilizer and space; host transfer and pest and disease damage spreading; greatly increasing the physical and chemical cost (fertilizer and labor input) of cotton planting; increase irrigation costs; reducing the cotton yield and the cotton fiber quality. Therefore, weeding in cotton fields is an important measure for ensuring high quality and high yield of cotton.
Chemical weeding is an important component of a modern cotton cultivation system and has an irreplaceable effect in weed control in cotton fields. Cotton belongs to dicotyledonous crops, is sensitive to various herbicides, has smaller herbicide variety selection space, stricter use technical requirements, narrower weed control spectrum and lower safety, and is difficult to prevent and remove the malignant weeds such as black nightshade and reed in a cotton field, so the development of the herbicide for effectively controlling the malignant weeds in the cotton field is urgently needed.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a herbicide composition for cotton fields, which has good safety, wide weed control spectrum and high weed control effect and can prevent and kill off malignant weeds such as black nightshade, reed and the like.
The herbicide composition for cotton fields comprises a herbicide A and a herbicide B, wherein the herbicide A is fluazifop-butyl, and the herbicide B is selected from at least one of a long-chain fatty acid synthesis inhibitor, a microtubule assembly inhibitor, a mitosis inhibitor, a lipid synthesis inhibitor, a photosynthetic system IIA site inhibitor and a fatty acid sulfatase inhibitor;
wherein the long-chain fatty acid synthesis inhibitor is selected from at least one of flufenacet, alachlor, butachlor and propachlor;
the microtubule assembly inhibitor is selected from at least one of butralin, dinotefuran, ethambucol, prodiamine and chlorthal;
the mitotic inhibitor is selected from chlorpropham;
the lipid synthesis inhibitor is selected from trichloroacetic acid;
the photosynthetic system IIA site inhibitor is selected from cyanazine and/or oxazolone;
the fatty acid sulfatase inhibitor is selected from cinmethylin.
Further, the mass ratio of the fluazifop-butyl to the herbicide B is 0.01-100:1, preferably 0.01-50:1, more preferably 0.01 to 20:1, most preferably 0.01 to 10: 1.
further, the herbicide B is flufenacet, and the mass ratio of the fluazifop-butyl to the flufenacet is 0.01-20:1, preferably 0.1-10:1, and more preferably 0.4-4: 1.
Further, the herbicide B is prodiamine, and the mass ratio of the fluazifop to the prodiamine is 0.01-20:1, preferably 0.1-10:1, and more preferably 0.2-2: 1.
Further, in the herbicide composition for cotton fields, the sum of the mass of the fluazifop and the herbicide B accounts for 0.1 to 99 percent of the mass of the fluazifop-containing herbicide composition, and preferably accounts for 5 to 80 percent of the mass of the fluazifop-containing herbicide composition; more preferably 20-80%; preferably, the carrier is a solid or a liquid.
Furthermore, the herbicide composition for cotton fields also comprises an auxiliary agent and/or a carrier, wherein the auxiliary agent and/or the carrier account for 1-99.9% of the herbicide composition for cotton fields by mass, preferably 1-80% of the herbicide composition for cotton fields by mass, and more preferably 20-80% of the herbicide composition for cotton fields by mass.
Further, the auxiliary agent comprises at least one of a surfactant, a thickening agent, an organic solvent, an antifreezing agent, a defoaming agent, a preservative and water;
preferably, the surfactant includes at least one of a wetting agent, a dispersing agent, and an emulsifying agent.
The invention also aims to provide a herbicide composition preparation which is mainly prepared from the herbicide composition for cotton fields;
preferably, the dosage form of the herbicide composition preparation is suspending agent, suspoemulsion, missible oil, wettable powder, water dispersible granule, emulsion in water, microemulsion or granule.
The invention also aims to provide the application of the herbicide composition or the herbicide composition preparation for cotton fields in controlling the weeds in the cotton fields;
preferably, the weeds include at least one of grassy weeds (wild oat, club grass, ryegrass, blue grass, aloes, alopecurus, japanese alopecurus, damascena, lolium multiflorum, crabgrass, eleusine indica, setaria viridis, barnyard grass, reed, stephania japonica, hispid hyssop, broomcorn millet), major broadleaf weeds (sowthistle wormwood, chickweed, cleavers, capsella, speedwell, bidens, alfalfa, rumex acetosa, rumex japonicus, vetch, amaranthus retroflexuosa, purslane, acalypha australis, chenopodium abutilon, nightshade, chenopodium glaucum, eclipta, sesbania trifoliata, polygonum perfoliatum, siberian cocklebur, morning glory, sow thistle) and cyperus 42 weeds.
Further, the cotton field weeds comprise at least one of black nightshade, chenopodium album, purslane, amaranthus retroflexus, barnyard grass, and reed.
The fourth object of the present invention is to provide a method for applying the above herbicide composition or herbicide composition preparation for cotton fields to be applied to soil before emergence of weeds.
The herbicide composition for cotton fields provided by the invention has the advantages that the herbicide A and the herbicide B are mutually synergistic, after the herbicide composition is applied to cotton fields, the weed control effect is high, the weed control spectrum is wide, the herbicide composition has a good control effect on common weeds in 42 cotton fields, and can efficiently control the malignant weeds such as black nightshade, chenopodium album, purslane, amaranthus retroflexus and reed in the cotton fields. In addition, the herbicide composition provided by the invention has good safety to cotton, the selectivity coefficient between cotton and weeds is obviously higher than that of a single herbicide, the yield increase effect is obvious, the resistance of the single herbicide is favorably delayed, the cost is low, and the popularization is easy.
The herbicide composition preparation provided by the invention has the advantages that the mutual synergistic effect of the herbicide A and the herbicide B is realized, after the herbicide composition preparation is applied to cotton fields, the weed control effect is high, the weed control spectrum is wide, the herbicide composition preparation has a good control effect on common weeds in 42 cotton fields, and the weed control composition preparation can be used for efficiently controlling the malignant weeds such as black nightshade, chenopodium album, purslane, amaranthus retroflexus and reed in the cotton fields. In addition, the herbicide composition preparation provided by the invention has good safety to cotton, the selectivity coefficient between cotton and weeds is obviously higher than that of a single herbicide, the yield increase effect is obvious, the resistance of the single herbicide is favorably delayed, the cost is low, and the herbicide composition preparation is easy to popularize.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The chemical herbicide is used as an important component of a modern cotton cultivation system and has irreplaceable effect in preventing and removing weeds in cotton fields. However, cotton belongs to dicotyledon crops, is sensitive to various herbicides, has small herbicide variety selection space and has strict use technical requirements.
Chenchen blaze et al reported that trifluralin remains in the soil and causes phytotoxicity in long-term use (chen blaze et al. several herbicides against weeds in cotton fields and safety efficacy tests [ J ] pesticide science and management, 2007,28(12): 34-35).
The Yan Cui Qin et al report that the compound preparation of the acetochlor and the prometryn has wide weed control spectrum and moderate persistent effect; but the safety to the growth of cotton seedlings is poor, the inhibition effect can be generated, and the grown plants are short; if the humidity is continuously high, the phytotoxicity is more serious (Scisseria arborvitae, etc., acetochlor and prometryn suspending agent have weeding effect and safety evaluation in cotton fields [ J ]. Hebei agricultural science, 2008,12(5):33-35, 53).
The jade cinnabar et al report that the soil treatment agents alachlor, acetochlor and metolachlor have poor safety to cotton under the recommended dosage, and pendimethalin also has a certain inhibiting effect on the plant height of cotton (jade cinnabar et al, the field control effect of several cotton field herbicides and the safety thereof to cotton are measured [ J ] pesticide, 2006,45(4): 270-.
The major soil-treating and foliage-treating herbicides in cotton fields have been reported by Lihuanhuan et al, and there have been mentioned the problem of limitation of herbicidal spectrum and the problem of susceptibility to phytotoxicity of trifluralin, acetochlor, prometryn, pyrithiobac, trifloxysulfuron to cotton (Lihuanhuan et al. cotton field chemical herbicidal status and countermeasure [ J ]. China cotton.2019, 46(5):1-7, 10).
In view of the problems of the prior art, according to a first aspect of the present invention, there is provided a herbicide composition for cotton fields, comprising a herbicide a which is fluazifop and a herbicide B which is at least one selected from the group consisting of a long-chain fatty acid synthesis inhibitor, a microtubule assembly inhibitor, a mitosis inhibitor, a lipid synthesis inhibitor, a photosystem IIA site inhibitor and a fatty acid sulfatase inhibitor.
The expression "at least one" means that the herbicide B is selected from any one or a mixture of any two or more of long-chain fatty acid synthesis inhibitors, microtubule assembly inhibitors, lipid synthesis inhibitors, photosynthetic system IIA site inhibitors and fatty acid sulfatase inhibitors.
The herbicide composition for cotton fields provided by the invention has the advantages that the herbicide A and the herbicide B are mutually synergistic, after the herbicide composition is applied to cotton fields, the safety is good, the weed control spectrum is wide, the weed control effect is high, and the malignant weeds such as black nightshade and reed can be effectively prevented and removed.
In the present invention, the long-chain fatty acid synthesis inhibitor is at least one selected from Flufenacet (CAS 142459-58-3), Alachlor (Alachlor, CAS 15972-60-8), Butachlor (Butachlor, CAS 23184-66-9), Propachlor (CAS 1918-16-7).
The above-mentioned "at least one" means that the long-chain fatty acid synthesis inhibitor is selected from any one or a mixture of any two of flufenacet, alachlor, butachlor and propachlor.
In the present invention, the microtubule assembly inhibitor is at least one selected from Butralin (CAS 33629-47-9), dinotefuran (Dinitramine,29091-05-2), Ethalfluralin (CAS 55283-68-6), Prodiamine (CAS 29091-21-2), dichlorvos (DCPA ═ chlorethal-dimethyl, CAS 1861-32-1).
The above-mentioned "at least one" means that the microtubule assembly inhibitor is selected from any one or a mixture of any two or more of butralin, dinotefuran, flutolanil, and dichlorvos.
In the present invention, the mitotic inhibitor is selected from Chlorpropham (Chloropropham, CAS 101-21-3).
In the present invention, the lipid synthesis inhibitor is selected from Trichloroacetic acid (Trichloroacetic acid TCA, CAS 76-03-9).
In the invention, the photosynthetic system IIA site inhibitor is selected from Cyanazine (CAS 21725-46-2) and/or oxazolon (Dimefuron, CAS 34205-21-5);
in the present invention, the fatty acid sulfatase inhibitor is selected from cycloheptane (Cinmethylin, CAS 87818-31-3).
In a preferred embodiment of the invention, the mass ratio of the fluazifop-butyl to the herbicide B is 0.01 to 100: 1.
Typically, but not limitatively, the mass ratio of the fluazifop and the herbicide B is, for example, 0.01:1, 0.02:1, 0.05:1, 0.08:1, 0.1:1, 0.2:1, 0.5:1, 0.8:1, 1:1, 2:1, 3:1, 4:1, 5:1, 8:1, 10:1, 20:1, 100:1, 50:1, 80:1 or 100: 1.
In a further preferred embodiment of the present invention, when the mass ratio of the fluazifop-butyl to the herbicide B is 0.01 to 50:1, the synergistic effect of the fluazifop-butyl and the herbicide is better, and the noxious weeds such as black nightshade and reed in cotton fields can be effectively prevented and killed.
In a further preferred embodiment of the present invention, the synergistic effect of the fluazifop and the herbicide B is more significant when the mass ratio of the two is 0.01 to 10: 1.
In one embodiment of the present invention, the herbicide composition for cotton fields provided by the present invention can also be applied in combination with one or more herbicides to control a wider range of undesirable vegetation. When used in combination with other herbicides, it may be formulated with the other herbicides or applied sequentially with the other herbicides.
In a preferred embodiment of the invention, when the herbicide B is flufenacet, the fluazifop-butyl and the flufenacet have a synergistic effect when the mass ratio of the fluazifop-butyl to the flufenacet is 0.01-20: 1.
Typically, but not limitatively, the mass ratio of fluazinam and flufenacet is, for example, 0.01: 1. 0.05:1, 0.1:1, 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 2:1, 3:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 20: 1.
When the mass ratio of the fluazifop-butyl to the flufenacet is 0.1-10:1, the synergistic effect of the fluazifop-butyl and the flufenacet is more obvious, and particularly when the mass ratio of the fluazifop-butyl to the flufenacet is 0.4-4:1, the synergistic effect of the fluazifop-butyl and the flufenacet is better.
In a preferred embodiment of the invention, when the herbicide B is prodiamine, the mass ratio of the fluazinone to the prodiamine is 0.01-20:1, and the two have synergistic effect.
Typically, but not limitatively, the mass ratio of fluazinam to prodiamine is, for example, 0.01: 1. 0.05:1, 0.1:1, 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 2:1, 3:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 20: 1.
In a further preferred embodiment of the invention, the synergistic effect of the fluazifop-butyl and the prodiamine is more remarkable when the mass ratio of the fluazifop-butyl to the prodiamine is 0.1-10:1, and particularly the synergistic effect of the fluazifop-butyl and the prodiamine is more preferable when the mass ratio of the fluazifop-butyl to the prodiamine is 0.2-2: 1.
In the preferred embodiment of the present invention, when the herbicide composition for cotton fields of the present invention is used, the active ingredient may be used as it is, or a composition containing the desired active ingredient may be formulated, or the active ingredients may be formulated separately and mixed. When administered, the active ingredients of the present application may be administered separately or simultaneously.
In a preferred embodiment of the present invention, in the herbicide composition for cotton fields, the sum of the mass of flonicamid and herbicide B is 0.1 to 99% of the herbicide composition for cotton fields.
In a preferred embodiment of the present invention, the herbicide composition for cotton fields may further contain other substances such as adjuvants and carriers, and when the sum of the mass of the fluazifop-ketone and the herbicide B is 0.1 to 99% of the weight of the herbicide composition for cotton fields, an excellent weed control effect can be achieved.
Typically, but not limitatively, the sum of the mass of fluazifop and herbicide B represents, for example, 0.1%, 0.2%, 0.5%, 0.8%, 1%, 2%, 3%, 5%, 8%, 10%, 12%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 80%, 85%, 90% or 99% of the mass of the herbicide in the cotton field.
In a further preferred embodiment of the present invention, the herbicide composition for cotton fields has a better weed control effect when the sum of the masses of the fluazifop and the herbicide B accounts for 5 to 80% of the herbicide composition for cotton fields, and particularly has a better weed control effect when the sum of the masses of the fluazifop and the herbicide B accounts for 20 to 80% of the herbicide composition for cotton fields.
In a preferred embodiment of the invention, the herbicide composition for cotton fields further comprises an adjuvant and/or a carrier, wherein the adjuvant and/or the carrier accounts for 1-99.9% of the weight of the herbicide composition for cotton fields.
The above "and/or" means that the herbicide composition for cotton fields comprises the active ingredients of the fluazifop-butyl and the herbicide B, and can comprise an auxiliary agent, a carrier and both the auxiliary agent and the carrier.
In a preferred embodiment of the invention, the mass of adjuvant and/or carrier in the herbicide composition for cotton fields represents, for example, 1%, 2%, 3%, 5%, 8%, 10%, 12%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 80%, 85%, 90%, 99% or 99.9% by mass.
In a further preferred embodiment of the present invention, the herbicidal composition for cotton fields is more effective in controlling weeds when the adjuvant and/or carrier is present in an amount of 1 to 80% by mass of the herbicidal composition for cotton fields, and particularly when the adjuvant and/or carrier is present in an amount of 20 to 80% by mass of the herbicidal composition for cotton fields.
In a preferred embodiment of the invention, the carrier is a solid or a liquid.
In a preferred embodiment of the present invention, the auxiliary is selected from at least one of a surfactant, a thickener, an organic solvent, an antifreeze, an antifoaming agent, a preservative, and water.
In a further preferred embodiment of the present invention, the surfactant comprises at least one of a wetting agent, a dispersing agent and an emulsifying agent.
In a preferred embodiment of the invention, the liquid carrier may be an organic solvent or water or a mixture of both.
In a preferred embodiment of the present invention, the organic solvent includes aromatic hydrocarbon compounds (e.g., mineral spirits), paraffins (e.g., petroleum fractions), alcohols (e.g., carbitol, tetrahydrofurfuryl alcohol), ketones (e.g., isophorone), amides (e.g., N-dimethylacetamide), esters (e.g., fatty acid methyl ester), heterocycles (e.g., N-butylpyrrolidone), and the like.
In a preferred embodiment of the present invention, the solid carrier is natural mineral (such as kaolin, talc, bentonite, and diatomaceous earth), plant-derived carrier (such as corn starch), synthetic carrier (such as white carbon), inorganic salt (such as ammonium sulfate, magnesium sulfate, and sodium sulfate), etc.
In a preferred embodiment of the invention, the surfactant may be an emulsifier, wetting agent or dispersing agent of ionic or non-ionic type. For example, one or more of calcium alkyl benzene sulfonate, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene ether, aralkyl phenol polyoxyethylene ether, sodium alkyl sulfate, sodium alkyl benzene sulfonate, alkyl naphthalene sulfonate, sodium/calcium lignosulfonate, polycarboxylate, phosphate, and the like;
the thickener can be natural polymer such as xanthan gum, arabic gum, polysaccharide derivative, etc., or synthetic such as polyvinyl alcohol, sodium carboxymethylcellulose, etc.;
the antifreeze can be one or more of polyalcohol (such as ethylene glycol, propylene glycol, and glycerol), urea, calcium chloride, etc.;
the defoaming agent can be one or more of organic silicon, fatty alcohol, polyether, mineral oil and the like;
the antiseptic may be 1, 2-benzisothiazolin-3-one (BIT), 5-chloro-2-methyl-4-isothiazolin-3-one (CIT), 2-methyl-4-isothiazolin-3-one (MIT), etc.;
in a preferred embodiment of the present invention, a dye, a stabilizer, etc. may also be added to the herbicide composition formulation as needed.
In a preferred embodiment of the present invention, the coloring agent may be an azo pigment, titanium oxide, or iron oxide.
According to a second aspect of the present invention, there is provided a herbicide composition formulation prepared from the herbicide composition for cotton fields provided by the first aspect of the present invention.
The herbicide composition preparation provided by the invention has the advantages that the herbicide A and the herbicide B are mutually synergistic, after the herbicide composition preparation is applied to cotton fields, the safety is good, the weed control spectrum is wide, the weed control effect is high, and the malignant weeds such as black nightshade and reed can be effectively prevented and removed.
In a preferred embodiment of the present invention, the formulation of the herbicide composition is a suspension, a suspoemulsion, an emulsifiable concentrate, a wettable powder, a water dispersible granule, an aqueous emulsion, a microemulsion, or a granule.
According to a third aspect of the present invention, there is provided the use of the above herbicide composition for cotton fields for controlling weeds in cotton fields.
In a preferred embodiment of the present invention, the weeds include at least one of not limited to grassy weeds (wild oat, pseudostellaria root, ryegrass, blue grass, foxtail, japanese foxtail, large-ear foxtail, lolium multiflorum, crabgrass, goosegrass, green bristlegrass, barnyard grass, reed, stephania japonica, hispid arthraxonotus, bran millet), major broadleaf weeds (flimsy wormwood, chickweed, cleaverse, capsella, speedwell, bidens, alfalfa, rumex sorrel, rumex japonicus, vetch, portulaca oleracea, acalypha australis, chenopodium glaucoides, abutilon, nightshade, chenopodium album, eclipta prostrata, meadowrue, ricepaper, sesbania indica, xanthium sibirica, oyster, agaric ear, pharbitis, sow thistle) and cyperaceae weeds cyperus rotundus 42 weeds.
In a preferred embodiment of the invention, the cotton field weeds comprise at least one of black nightshade, chenopodium album, purslane, amaranthus retroflexus, barnyard grass and reed.
The above-mentioned "at least one kind" means that the weeds in cotton field may be any one of Solanum nigrum, Chenopodium album, Portulaca oleracea, Amaranthus retroflexus, Echinochloa crusgalli and Phragmites communis, or a mixture of any two or more kinds of the above-mentioned weeds.
According to a fourth aspect of the present invention, there is provided the use of the above herbicide composition formulation for the control of cotton weeds.
In a preferred embodiment of the present invention, the species of the cotton field weeds are the same as those in the third aspect, and thus, the description thereof is omitted.
According to a fifth aspect of the present invention, there is provided a method of applying a herbicide composition for cotton fields, which herbicide composition is applied to soil before emergence of weeds.
The herbicide composition for cotton fields provided by the invention is simple in application method and convenient for large-scale application in cotton fields.
According to a sixth aspect of the present invention, there is provided a method of application of a formulation of a herbicide composition for application to soil prior to emergence of weeds.
The herbicide composition preparation provided by the invention is simple in application method and convenient for large-scale application in cotton fields.
In a preferred embodiment of the present invention, the above-mentioned herbicide composition or herbicide composition preparation for cotton fields can be applied simultaneously or in batches for controlling cotton field weeds, comprising mixing the effective amounts of the components in a ratio and then applying, simultaneously in a ratio or sequentially in a ratio.
The technical solution provided by the present invention is further described below with reference to examples and comparative examples.
Method and standard for measuring herbicidal activity
1. Bioassay test methods:
refer to soil spraying method of agricultural Ministry ' test criteria for indoor biological determination of pesticides ' NY/T1155.3-2006 '.
Preparing liquid medicine:
raw materials: accurately weighing herbicide raw materials with a certain mass, dissolving the herbicide raw materials with DMF (dimethyl formamide), adding clear water containing 0.1% Tween 80 emulsifier, and stirring uniformly to prepare a solution with a certain concentration for later use.
Preparation: the preparation is directly weighed and is treated after being diluted by water.
2. Evaluation standard of weeding activity by visual inspection method
Visual herbicidal activity of the agents was visually observed in the degree of plant damage symptoms (inhibition, malformation, yellowing, whitening), 0 for no herbicidal effect, 100% for complete weed killing, and visual evaluation criteria are shown in table 1.
TABLE 1 evaluation criteria of herbicidal Activity by visual inspection
(II) evaluation of Combined action of herbicide composition for Cotton field
To further understand the type of combined action of herbicidal compositions for cotton fields on weeds, the applicant conducted laboratory tests on herbicidal compositions for cotton fields. The herbicidal activity of the fluazifop-butyl composition is compared with that of a single agent according to different proportions by a greenhouse pot activity determination test.
Test targets: barnyard grass (Echinochloa crusgalli), reed (Phragmitis australis), Amaranthus retroflexus and Solanum nigrum (Solanum nigrum), wherein the weed seeds are collected in the field and stored indoors.
Adopting a greenhouse potting treatment method, filling quantitative soil in a plastic pot, scattering 15-20 weed seeds to be tested to the soil surface, covering with fine soil for 0.5-1 cm, culturing in a greenhouse, and performing soil spraying treatment after 24 hours. Each treatment was repeated 4 times, with no drug treatment as a control. After treatment, the mixture is placed in a greenhouse for culture, the growth condition of the target weeds is observed regularly, and the comprehensive weeding activity is measured 30 days after treatment.
The combined action type of the composition for the cotton field is evaluated by a Gowing method, which is a herbicide mixed combined action type evaluation method proposed in 1960. The method comprises the specific steps of firstly measuring the control effect of a single agent and a mixed agent on target weeds, calculating the theoretical control effect of the mixed agent through the actual measurement control effect of the single agent, and then comparing the theoretical control effect with the actual measurement control effect of the mixed agent to evaluate the combined action type.
The blending effect calculation formula of the Gowing method is as follows: e0X + Y-XY/100, wherein X represents the weed control effect of herbicide a at an amount of P; y represents the weed control effect of the herbicide B when the dosage is Q; e0Represents the theoretical control effect of the herbicide (A + B) when the dosage of the herbicide is (P + Q). According to the Gowing method, when E-E0>When the content is 10 percent, the mixed herbicide generates a synergistic effect; when E-E0<When the content is-10%, the mixed herbicide generates antagonism; when E-E0When the value is +/-10%, the additive effect of the mixed herbicide is generated, and in the formula, E represents the actually measured control effect% of each treatment.
The pre-emergence herbicidal activity results of the mixed use of various herbicides on barnyard grass, reed, amaranthus retroflexus and solanum nigrumThe results of tables 2-6 show that the weed control effect of the mixed herbicides is higher than that of the two single herbicides, and the herbicidal activity is improved. The results of evaluation of the combined action of the herbicide compositions for cotton fields show that the ratio of the partial distribution of the herbicide compositions for cotton fields to the actual control effect (E) of the weeds to be tested is greater than the theoretical control effect (E)0) And E-E0The value is more than 10%, the combined action type of mixing is synergistic action, the few mixture ratios are additive action, and no antagonistic action occurs.
As can be seen from Table 7, when the actual control effect of the herbicide composition for cotton fields prepared by mixing the fluazifop-butyl and the trifluralin is basically lower than the theoretical control effect, the main combined action of the two in combination is antagonistic action or additive action, and no synergistic action exists.
TABLE 2 evaluation of the type of combined action of a combination of fluazinone and flufenacet compositions
Remarking: the control data in the table are percentage values.
TABLE 3 evaluation of the type of combined action of the compositions fluazinam and prodiamine
Remarking: the control data in the table are percentage values.
TABLE 4 evaluation of the type of combined action of the compositions fluazinone and chlorpropham
Remarking: the control data in the table are percentage values.
TABLE 5 evaluation of the type of joint action of the combination of fluazinone and cyanazine
Remarking: the control data in the table are percentage values.
TABLE 6 evaluation of the type of combined action of the combination of fluazinone and cinmethylin
Remarking: the control data in the table are percentage values.
TABLE 7 evaluation of the type of combined action of the compositions fluazinone and trifluralin
Remarking: the control data in the table are percentage values.
(III) herbicide composition preparation and efficacy measurement
1. Formulation examples and comparative examples settings
The contents in all examples and comparative examples are mass percent contents.
Example 145% Fluazinone-flufenacet suspension
| Components | Composition of% | Remarks for note |
| Fluazinone | 20 | Active ingredient |
| Flufenacet | 25 | Active ingredient |
| surfom D Polynapthyl Formaldehyde sodium salt | 2 | Wetting agent, available from Oxiteno |
| Atlox 4913 polycarboxylate copolymer | 5 | Dispersant from Croda |
| Borresperse NA calcium lignosulfonate | 3 | Dispersant, available from Borregaard |
| Propylene glycol | 5 | Antifreezing agent |
| Magnesium aluminum silicate | 1 | Thickening agent |
| Xanthan gum | 0.1 | Thickening agent |
| BIT | 0.1 | Preservative |
| Water (W) | Complement 100 | Solvent(s) |
The effective components, the wetting agent, the dispersing agent, the antifreezing agent, the thickening agent, the preservative, the water and the like are weighed according to the formula, stirred at a high speed and dispersed uniformly, and then crushed to an average particle size of less than 3 mu m by a sand mill to obtain the 45 percent suspending agent of the fluazinone and the flufenacet.
Example 221% Fluazinone-alachlor emulsifiable concentrate
| Components | Composition of% | Remarks for note |
| Fluazinone | 7 | Active ingredient |
| Alachlor | 14 | Active ingredient |
| Nongru 500# dodecyl benzene sulfonic acidCalcium carbonate | 4 | Emulsifier |
| Agricultural emulsion 600# styrylphenol polyoxyethylene ether | 5 | Emulsifier |
| Cyclohexanone | 35 | Solvent(s) |
| Solvesso 150 solvent oil | Complement 100 | Solvent from Exxon Mobil |
The effective components, the emulsifier, the solvent and the like are weighed according to the formula and stirred and dissolved to be uniform and transparent liquid, and then the 21 percent of the flumetsulam-alachlor missible oil is obtained.
Example 325% Fluazinone-butachlor emulsifiable concentrate
The effective components, the emulsifier, the solvent and the like are weighed according to the formula and stirred and dissolved to be uniform and transparent liquid, and the 25 percent of the flumetsulam-butachlor emulsifiable oil is obtained.
Example 475% wettable fluazinone-propachlor powder
| Components | Composition of% | Remarks to note |
| Fluazinone | 30 | Active ingredient |
| Chlorpyrifos | 45 | Active ingredient |
| Sodium dodecyl sulfate | 2 | Wetting agent |
| Sodium Ufoxane 3A lignosulfonate | 3 | Dispersant, available from Borregaard |
| Kaolin clay | Complement 100 | Filler material |
The active ingredients, the wetting agent, the dispersing agent and the filler are weighed according to the formula, evenly mixed and then crushed by an airflow crushing system to obtain the 75 percent fluazinone-thamnazinam wettable powder with the average grain diameter of less than 5 mu m.
Example 524% Fluazinone Sebutralin suspoemulsion
| Components | Composition of% | Remarks for note |
| Fluazinone | 6 | Active ingredient |
| Butralin | 18 | Active ingredient |
| SOPROPHOR 3D33 polyoxyethylene ether phosphates | 3 | Wetting agent, available from solvay |
| Morwet D-425 naphthalene sulfonate | 4 | Dispersants from Akzo Nobel |
| Phenylsulfonat CAL calcium dodecylbenzene sulfonate calcium | 3 | Emulsifiers, commercially available from Clariant |
| Emulsogen EL360 castor oil polyoxyethylene ether | 4 | Emulsifiers, commercially available from Clariant |
| Ethylan NS-500LQ nonionic emulsifier | 4 | Emulsifiers, commercially available from Clariant |
| Propylene glycol | 3 | Antifreezing agent |
| Magnesium aluminum silicate | 1 | Thickening agent |
| Xanthan gum | 0.1 | Thickening agent |
| BIT | 0.05 | Preservative |
| Solvesso 150 solvent oil | 30 | Solvent from Exxon Mobil |
| sag 1572 Silicone antifoam agent | 0.2 | Defoaming agent |
| Water (W) | Complement 100 | Solvent(s) |
Weighing fluazifop-butyl, SOPROPHOR 3D33, Morwet D-425, magnesium aluminum silicate, a defoaming agent and water according to the formula, stirring at a high speed, sanding to obtain an aqueous suspension A with the average particle size of below 3 mu m, weighing butralin, phenyl sulfonat CAL, Emulsogen EL360, Ethylan NS-500LQ and Solvesso 150 according to the formula, stirring uniformly to obtain an oil phase B, adding the oil phase B into the aqueous suspension A under stirring, adding xanthan gum and BIT, and shearing at a high speed to obtain the 24% fluazifop-butralin suspension emulsion with the average particle size of below 3 mu m.
Example 660% Fluazinone/Dilutamide Water dispersible granules
| Components | Composition of% | Remarks for note |
| Fluazinone | 15 | Active ingredient |
| Dilleamine | 45 | Active ingredient |
| Multiwet MO-85P dioctyl sodium sulfosuccinate | 3 | Wetting agent from Croda |
| Morwet D-425 naphthalene sulfonate | 4 | Dispersants from Akzo Nobel |
| Corn starch | 2 | Filler material |
| Kaolin clay | Complement 100 | Filler material |
The effective components, the wetting agent, the dispersing agent and the filler are weighed according to the formula, evenly mixed, crushed by an airflow crushing system to have the average particle size of below 5 mu m, the obtained mixture is added with 10 parts of water in a kneader and kneaded for 5 minutes, the obtained kneaded mixture is granulated by a granulator, and then dried and sieved to obtain the 60 percent fluazinone-tylamine water dispersible granule.
Example 724% Fluazinone Fluben Ethan emulsifiable concentrate
| Components | Composition of% | Remarks for note |
| Fluazinone | 6 | Active ingredient |
| Fluoroxylen B | 18 | Active ingredient |
| Phenylsulfonat CAL calcium dodecylbenzene sulfonate calcium | 4 | Emulsifiers, commercially available from Clariant |
| Emulsogen TS 160 tristyryl polyoxyethylene ether | 6 | Emulsifiers, commercially available from Clariant |
| Xylene | 10 | Solvent(s) |
| Ethylene glycol monobutyl ether | Complement 100 | Solvent(s) |
The active ingredients, the emulsifier, the solvent and the like are weighed according to the formula and stirred and dissolved to be uniform and transparent liquid, and the 24 percent flumetsulam-ethylbutenafield missible oil is obtained.
Example 840% Fluazinone-Amfluralin suspension
| Components | Composition of% | Remarks to note |
| Fluazinone | 12 | Active ingredient |
| Amoflalin | 28 | Active ingredient |
| FS-3000 phosphoric acid salt | 2 | Wetting agent, purchased from bamboo |
| Morwet D-425 naphthalene sulfonate | 4 | Dispersants from Akzo Nobel |
| Reax 907 sodium lignosulfonate | 3 | Dispersant from MeadWestvaco |
| Ethylene glycol | 5 | Antifreezing agent |
| Magnesium aluminium silicate | 1 | Thickening agent |
| Xanthan gum | 0.1 | Thickening agent |
| BIT | 0.1 | Preservative |
| Sag 630 silicones | 0.3 | Defoaming agent |
| Water (W) | Complement 100 | Solvent(s) |
The effective components, wetting agent, dispersant, antifreezing agent, thickener, preservative, defoaming agent, water, etc. are weighed according to the above formula, stirred at high speed and dispersed uniformly, and then crushed by a sand mill to have an average particle size of less than 3 μm to obtain 40% of the fluazinone-prodiamine suspending agent.
Example 980% Fluazinone-Dichloraz Water dispersible granules
| Components | Composition of% | Remarks for note |
| Fluazinone | 25 | Active ingredient |
| Chlorthal | 55 | Active ingredient |
| Sodium dodecyl sulfate | 2 | Wetting agent |
| Morwet D-425 naphthalene sulfonate | 4 | Dispersants from Akzo Nobel |
| Corn starch | 2 | Filler material |
| Bentonite clay | Complement 100 | Filler material |
Weighing the effective components, the wetting agent, the dispersing agent and the filler according to the formula, uniformly mixing, then crushing by an airflow crushing system to obtain particles with the average particle size of below 5 microns, adding 10 parts of water into the obtained mixture in a kneader, kneading for 5 minutes, granulating the obtained kneaded mixture by a granulator, and then drying and sieving to obtain the 80% fluazinone-dichlorvos water dispersible granule.
Example 1024% Fluazinone-chlorpropham Missible oil
| Components | Composition of% | Remarks for note |
| Fluazinone | 4 | Active ingredient |
| Chlorpropham | 20 | Active ingredient |
| Phenylsulfonat CAL calcium dodecylbenzene sulfonate calcium | 4 | Emulsifiers, commercially available from Clariant |
| Emulsogen EL360 castor oil polyoxyethylene ether | 5 | Emulsifiers, commercially available from Clariant |
| Genapol X060 fatty alcohol polyoxyethylene ether | 5 | Emulsifiers, commercially available from Clariant |
| Xylene | 20 | Solvent(s) |
| Solvesso 150 solvent oil | Complement 100 | Solvent from Exxon Mobil |
The effective components, the emulsifier, the solvent and the like are weighed according to the formula and stirred and dissolved to be uniform and transparent liquid, and the 24 percent of the flumetsulam-chlorpropham missible oil is obtained.
Example 1180% Fluazinone-trichloroacetic acid wettable powder
| Components | Composition of% | Remarks for note |
| Fluazinone | 20 | Active ingredient |
| Trichloroacetic acid | 60 | Active ingredient |
| Sodium dodecyl sulfate | 2 | Wetting agent |
| Geropon T-36 polycarboxylate | 3 | Dispersant from Solvay |
| Kaolin clay | Complement 100 | Filler material |
Weighing the fluazifop-butyl, the wetting agent, the dispersing agent and the filler according to the formula, uniformly mixing, crushing by an airflow crushing system to obtain the powder with the average particle size of below 5 mu m, and then mixing the powder with trichloroacetic acid to obtain the 80% fluazifop-butyl trichloroacetic acid wettable powder.
Example 1254% Fluazinone-Cyanine suspension
Weighing the effective components, the wetting agent, the dispersing agent, the antifreezing agent, the thickening agent, the preservative, the water and the like according to the formula, stirring at a high speed for uniform dispersion, and then crushing by a sand mill until the average particle size is less than 3 mu m to obtain the 54 percent suspending agent of the fluazinone and the cyanazine.
Example 1345% Fluazinone-oxazolon suspension
| Components | Composition of% | Remarks for note |
| Fluazinone | 40 | Active ingredient |
| Oxazolon | 5 | Active ingredient |
| Ethylan 324 block copolymer | 3 | Wetting agents from Akzo Nobel |
| Agrilan 788 polyacrylic acid copolymer | 3 | Dispersants from Akzo Nobel |
| Ethylene glycol | 4 | Antifreezing agent |
| Magnesium aluminium silicate | 1.0 | Thickening agent |
| Xanthan gum | 0.1 | Thickening agent |
| BIT | 0.1 | Preservative agent |
| Water (W) | Complement 100 | Solvent(s) |
The effective components, wetting agent, dispersant, antifreezing agent, thickener, preservative, water and the like are weighed according to the formula, stirred at high speed and dispersed uniformly, and then crushed to the average particle size of less than 3 mu m by a sand mill to obtain the 45 percent suspending agent of the fluazinone and the oxazolon.
Example 1436% Fluazinone-cycloheptane Ether suspoemulsion
Weighing the fluridone, the ethyalan 324, the Morwet D-425, the antifoaming agent and the water according to the formula, stirring at a high speed, sanding to obtain an aqueous suspension A with the average particle size of below 3 mu m, weighing the cinmethylin, the Dispersogen LFS, the Genapol X080 and the Solvesso 150 according to the formula, stirring uniformly to obtain an oil phase B, adding the oil phase B into the aqueous suspension A under stirring, adding the xanthan gum and the BIT, and shearing at a high speed to obtain the 36 percent fluridone-cycloheptanetheron suspension emulsion with the average particle size of below 3 mu m.
Example 1539% Fluazinone, flufenacet, cyanazine suspension
| Components | Composition of% | Remarks for note |
| Fluazinone | 4 | Active ingredient |
| Flufenacet | 5 | Active ingredient |
| Cyanazine | 30 | Active ingredient |
| Ethylan 324 block copolymer | 3 | Wetting agents from Akzo Nobel |
| Agrilan 788 polyacrylic acid copolymer | 3 | Dispersants from Akzo Nobel |
| Borresperse NA calcium lignosulfonate | 3 | Dispersant, available from Borregaard |
| Propylene glycol | 5 | Antifreezing agent |
| Magnesium aluminum silicate | 1 | Thickening agent |
| Arabic gum | 0.2 | Thickening agent |
| BIT | 0.1 | Preservative |
| Water (W) | Complement 100 | Solvent(s) |
The effective components, wetting agent, dispersant, antifreezing agent, thickener, preservative, water and the like are weighed according to the formula, stirred at high speed and dispersed uniformly, and then crushed to the average particle size of less than 3 mu m by a sand mill to obtain the 39 percent suspending agent of the fluazinone, the flufenacet and the cyanazine.
Example 1638% Fluazinone, flufenacet, oxazolon suspension
| Components | Composition of% | Remarks for note |
| Fluazinone | 16 | Active ingredient |
| Flufenacet | 20 | Active ingredient |
| Oxazolon | 2 | Active ingredient |
| FS-3000 phosphoric acid salt | 2 | Wetting agent, purchased from bamboo |
| Agrilan 788 polyacrylic acid copolymer | 3 | Dispersants from Akzo Nobel |
| Reax 907 sodium lignosulfonate | 3 | Dispersants from MeadWestvaco |
| Ethylene glycol | 5 | Antifreezing agent |
| Magnesium aluminum silicate | 1 | Thickening agent |
| Xanthan gum | 0.1 | Thickening agent |
| BIT | 0.1 | Preservative |
| Water (W) | Complement 100 | Solvent(s) |
The active ingredients, the wetting agent, the dispersing agent, the antifreezing agent, the thickening agent, the preservative, the water and the like are weighed according to the formula, stirred at a high speed and dispersed uniformly, and then crushed to an average particle size of less than 3 mu m by a sand mill to obtain the 38 percent suspending agent of the fluazifop-butyl, the flufenacet and the oxazolon.
Example 1770% Fluazinone, Amafluoralin, cyanazine Water dispersible granules
| Components | Composition of% | Remarks for note |
| Fluazinone | 6 | Active ingredient |
| Amoflalin | 14 | Active ingredient |
| Cyanazine | 50 | Active ingredient |
| Multiwet MO-85P dioctyl sodium sulfosuccinate | 3 | Wetting agent from Croda |
| Borresperse CA calcium lignosulfonate | 5 | Dispersant, available from Borregaard |
| SOAP L | 0.2 | Antifoams from BASF |
| Corn starch | 2 | Filler material |
| Kaolin clay | Complement 100 | Filler material |
Weighing the effective components, the wetting agent, the dispersing agent, the defoaming agent and the filler according to the formula, uniformly mixing, then crushing by an airflow crushing system to obtain particles with the average particle size of below 5 microns, adding 10 parts of water into the obtained mixture in a kneading machine, kneading for 5 minutes, granulating the obtained kneaded mixture by a granulator, and then drying and screening to obtain the 70% water dispersible granule of fluazinone, prodiamine and cyanazine.
Example 1852% wettable powder of fluazinone, prodiamine, oxazolone
| Components | Composition of% | Remarks to note |
| Fluazinone | 15 | Active ingredient |
| Amoflalin | 35 | Active ingredient |
| Oxazolon | 2 | Active ingredient |
| Morwet IP isopropyl naphthalene sulfonate | 2 | Wetting agents from Akzo Nobel |
| Reax 907 sodium lignosulfonate | 3 | Dispersants from MeadWestvaco |
| SOAP L | 0.2 | Antifoams from BASF |
| Kaolin clay | Complement 100 | Filler |
Weighing the fluazifop-butyl, the wetting agent, the dispersing agent and the filler according to the formula, uniformly mixing, crushing by an airflow crushing system to obtain the powder with the average particle size of below 5 mu m, and then mixing the powder with the prodiamine and the oxazolone to obtain the 52 percent wettable powder of the fluazifop-butyl, the prodiamine and the oxazolone.
Comparative example 150% Fluazinone-trifluralin herbicide composition Water dispersible granule
Weighing the effective components, the wetting agent, the dispersing agent, the defoaming agent and the filler according to the formula, uniformly mixing, then crushing by an airflow crushing system to obtain particles with the average particle size of less than 5 microns, kneading the obtained mixture in a kneader for 5 minutes by adding 10 parts of water, granulating the obtained kneaded mixture by a granulator, and then drying and screening to obtain the 50% fluazinone-trifluralin water dispersible granules.
Comparative example 234% flumioxazin pendimethalin emulsifiable concentrate: representative soil treatment agent for cotton field: mirabilitum, produced by Shandong science and technology GmbH.
2. Evaluation of drug efficacy of formulation examples and comparative examples
The herbicide composition preparations prepared in examples 1 to 18 and the herbicide composition preparations provided in comparative examples 1 to 2 were subjected to indoor herbicidal activity, cotton safety, cotton and cotton field weed selectivity and weed control spectrum tests, and field tests for weed control were performed in cotton fields to confirm the cotton safety and weed control effects of the preparations, and the test results are as follows.
2.1 herbicidal Activity test
The weeds to be tested were sown evenly into pots with an inner diameter of 9cm and cultivated in a greenhouse. After 24h, the agent was sprayed on an automatic spraying device. Repeating the treatment for 3 times, standing for 4-5 h after the treatment, and transferring into a greenhouse for conventional culture. The results of the herbicidal activity test of each weed were investigated 30 days after application by visual inspection, and the results of the herbicidal activity test of each treatment on the main broad-leaved weeds, namely, Solanum nigrum, Portulaca oleracea, Amaranthus retroflexus, Chenopodium album, and the grassy weeds, Echinochloa crusgalli and Phragmites communis, in the cotton field are shown in Table 8. The herbicidal activity of the herbicide composition preparation treatment provided by the examples 1-18 on the tested weeds is 85.7-100%, the herbicidal activity is high, and the activity and the herbicidal spectrum of the weeds are obviously higher than those of the single-agent treatment and the comparative examples 1-2 treatment.
TABLE 8 results of the test for determining herbicidal Activity of examples, comparative examples and control Agents-30 days after application
2.2 Selectivity test
The target crops of cotton and sensitive weeds of barnyard grass, black nightshade and amaranthus retroflexus are selected as test targets. And performing soil spraying treatment 24h after sowing. After treatment, plant reaction symptoms are observed regularly, and after 30 days, the fresh weight of the overground parts of the weeds and the cotton is weighed, and the inhibition rate is calculated. Dose-activity regression analysis using DPS statistical analysis software to determine the ED of each treatment on cotton10Value and ED on weeds90The value is obtained. ED from the target crop10ED of value versus sensitive target90The ratio of values calculates the selectivity coefficient of the agent between cotton and weeds. The larger the selectivity coefficient is, the better the application prospect of the medicament is.
As can be seen from tables 9 and 10, the herbicidal composition formulations provided in examples 1 and 8 exhibited high activity against weeds and good safety against cotton. Compared with a single agent, the activity of the composition treatment on weeds is obviously higher than that of the single agent treatment. Therefore, the effect of improving the weed control effect by the composition treatment is obvious.
The selectivity test data show that the selectivity coefficient between the cotton and the weeds in example 1 is 4.2-8.9, the selectivity coefficient between the cotton and the weeds in example 8 is 3.4-5.9, and the selectivity coefficients are all larger than 2. Therefore, the series of compositions have high selectivity between cotton and weeds and good application prospect. In addition, compared with a single dose, the selectivity of the composition is remarkably higher than that of a control single dose of flufenacet and prodiamine, and the selectivity of the composition on cotton and grassy weeds is also remarkably higher than that of a control single dose of fluazinone.
TABLE 9 Selectivity test results of a combination of fluazinone and flufenacet
TABLE 10 Selectivity test results for a combination of fluazinone and prodiamine
2.3 herbicidal spectra test
Grass weeds (wild oat, clavatum, ryegrass, bluegrass, alopecurus, lolium multiflorum, crabgrass, eleusine indica, setaria viridis, barnyard grass, reed, stephania japonica, hispid arthrocera, and switchgrass), main broadleaf weeds (sowthistle wormwood, chickweed, cleavers, shepherd's purse, speedwell, bidens, alfalfa, rumex japonicus, vetch, amaranthus retroflexuosus, purslane, acalypha australis, chenopodium glaucum, chingma abutilon, chenopodium glaucum, eclipta, cuckoo's-head, eclipta alba, polygonum perfoliata, schizophragma, polygonum perfoliatum, morum perfoliatum, and cyperus rotundus in grass) and 42 weeds in the family cyperus rotundus are taken as targets for weed testing, and the 42 weeds are uniformly sowed in pots with the internal diameter of 9cm and cultured in a greenhouse. After 24h, the agent was sprayed on an automatic spraying device. Repeating the treatment for 3 times, standing for 4-5 hours after the treatment, and transferring into a greenhouse for conventional culture. The results of the herbicidal activity test of each weed were investigated 30 days after application by visual inspection (see table 1), and the average herbicidal activity of each treatment on grasses, broadleaf weeds and sedges was calculated, and the average activity of each treatment on grasses, broadleaf weeds and sedges by single-dose and mixed-dose treatments of fluazinone, flufenacet and prodiamine is shown in table 11. The average herbicidal activity of the composition against grassy weeds, broadleaf weeds and cyperaceae weeds is significantly higher than that of the single-agent and comparative examples 1-2. Therefore, the composition has obvious effects of expanding the weed control spectrum and improving the weeding activity.
TABLE 11 herbicidal composition formulation greenhouse herbicidal spectra test results
2.4 field test
Referring to the field efficacy test method of GB-T17980.128-2004 pesticide field efficacy test criterion (II) herbicide control cotton field weed, test cells are arranged in unidirectional random blocks, and the area of each cell is 20m24 repeats. The test field grass phase mainly comprises black nightshade, barnyard grass, amaranthus retroflexus and chenopodium album, and is uniformly distributed. The herbicide compositions prepared in examples 1 and 8 and the control agents 1 and 2 were sprayed to the soil about 1 week before cotton sowing, and the amount of the sprayed soil (mixed with water) was 60L/mu. Recording the soil type, meteorological data, insect control, disease prevention and other field management conditions of the test field. After the pesticide is applied, whether the cotton of the target crop has the phytotoxicity or not is regularly observed, phytotoxicity symptoms, grades and recovery conditions are recorded, the yield of the cotton is measured during harvesting, and the yield increase rate of the pesticide treatment is investigated. Meanwhile, the weed damage performance is regularly observed, and the plant control effects of various weeds and total grass are investigated when the drug effect is fully exerted. Total grass control and yield were analyzed for variance using DPS software to confirm significant differences between treatments (significant differences are indicated by different letters).
The field test result shows that the composition for preventing and treating farmland weeds can effectively prevent and treat the weeds such as black nightshade, chenopodium album, barnyard grass, amaranthus retroflexus and the like, the total weed control effect of the composition treatment is obviously higher than that of each single-dose control, and the weed control spectrum is expanded or the weed control effect is obviously improved. The cotton safety result shows that the treatment of the composition has no visible negative effect on the emergence and growth of cotton, the cotton emergence rate and plant height are basically consistent with those of a blank control and are obviously higher than those of conventional control agents 1 and 2 in a cotton field, the boll forming number and yield are higher than those of the blank control, the cotton yield in a treatment area of the composition is obviously higher than those of a single agent control, the conventional control agent and the blank control treatment in the cotton field, and the yield increasing effect is obvious. Therefore, the composition has better safety to cotton and the yield is obviously higher than that of a conventional cotton field control medicament.
TABLE 12 field test results of fluridone compositions-prevention of weed plants%
Remarking: in the table, the different letters abcd represent the significance of the variance analysis (P ═ 0.05)
TABLE 13 field test results for fluridone compositions-Cotton safety
Remarking: in the table, the different letters abcd represent the significance of the variance analysis (P ═ 0.05)
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. A herbicide composition for cotton fields is characterized by comprising fluazifop-butyl and prodiamine;
the mass ratio of the fluazifop-butyl to the prodiamine is 0.1-10: 1.
2. The herbicide composition for cotton fields as claimed in claim 1, wherein the mass ratio of said fluridone to said prodiamine is 0.2-2: 1.
3. The herbicide composition for cotton fields as claimed in claim 1 or 2, wherein the sum of the masses of said fluridone and said prodiamine is 0.1-99% of the weight of said herbicide composition for cotton fields.
4. The herbicide composition as claimed in claim 3, wherein the sum of the masses of the fluazifop and the prodiamine is 5-80% of the weight of the herbicide composition.
5. The herbicide composition as claimed in claim 3, wherein the sum of the masses of the fluazifop and the prodiamine is 20-80% of the weight of the herbicide composition.
6. The cotton field herbicide composition as claimed in claim 3, further comprising an adjuvant and/or a carrier, wherein the adjuvant and/or the carrier is 1-99.9% by weight of the cotton field herbicide composition.
7. The herbicide composition as claimed in claim 6, wherein the adjuvant and/or the carrier is present in an amount of 1 to 80% by weight based on the weight of the herbicide composition.
8. The herbicide composition as claimed in claim 6, wherein the amount of the adjuvant and/or the carrier is 20-80% by weight of the herbicide composition.
9. A herbicide composition for use in cotton fields as claimed in claim 6, wherein said carrier is solid or liquid.
10. The herbicide composition as set forth in claim 6, wherein said adjuvant comprises at least one of a surfactant, a thickener, an organic solvent, an antifreeze, an antifoaming agent, a preservative and water.
11. A herbicide composition for cotton fields as set forth in claim 10, wherein said surfactant comprises at least one of a wetting agent, a dispersing agent and an emulsifying agent.
12. A herbicide composition preparation which is prepared mainly from the herbicide composition for cotton fields as defined in any one of claims 1 to 11.
13. A herbicidal composition formulation as claimed in claim 12, wherein said herbicidal composition formulation is in the form of a suspension, a suspoemulsion, an emulsifiable concentrate, a wettable powder, a water dispersible granule, an aqueous emulsion, a microemulsion or a granule.
14. Use of the herbicide composition for cotton fields as set forth in any one of claims 1 to 11 or the herbicide composition formulation as set forth in claim 12 or 13 for controlling weeds in cotton fields.
15. The use of claim 14, wherein the cotton field weeds comprise at least one of black nightshade, chenopodium album, purslane, redroot pigweed, barnyard grass, and reed grass.
16. The method of application of the herbicide composition for cotton field as set forth in any one of claims 1 to 11 or the herbicide composition preparation as set forth in claim 12 or 13, characterized in that the herbicide composition for cotton field as set forth in any one of claims 1 to 11 or the herbicide composition preparation as set forth in claim 12 or 13 is applied to soil before emergence of weeds.
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|---|---|---|---|---|
| GB1560476A (en) * | 1975-10-16 | 1980-02-06 | Lilly Co Eli | Herbicidal compositions |
| US6890886B2 (en) * | 2000-05-17 | 2005-05-10 | General Electric Company | Agricultural compositions employing organosiloxanes containing polyhydric groups |
| CN109938030A (en) * | 2019-01-29 | 2019-06-28 | 江苏瑞邦农药厂有限公司 | A kind of fluridone complex weedicide and preparation method thereof |
| CN111657289A (en) * | 2020-06-05 | 2020-09-15 | 合力科技股份有限公司 | Special herbicide composition for flowers and preparation, application and control method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560476A (en) * | 1975-10-16 | 1980-02-06 | Lilly Co Eli | Herbicidal compositions |
| US6890886B2 (en) * | 2000-05-17 | 2005-05-10 | General Electric Company | Agricultural compositions employing organosiloxanes containing polyhydric groups |
| CN109938030A (en) * | 2019-01-29 | 2019-06-28 | 江苏瑞邦农药厂有限公司 | A kind of fluridone complex weedicide and preparation method thereof |
| CN111657289A (en) * | 2020-06-05 | 2020-09-15 | 合力科技股份有限公司 | Special herbicide composition for flowers and preparation, application and control method thereof |
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| Title |
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| Fluridone Carryover to Rotational Crops Following Application to Cotton, Charles;W. Cahoon et al;《The Journal of Cotton Science》;20151231;第19卷(第3期);631-640 * |
| RN 63797-11-5;ACS;《STN REGISTRY》;19841116;全文 * |
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