CN112335660A - Topramezone and fluroxypyr weeding composition - Google Patents
Topramezone and fluroxypyr weeding composition Download PDFInfo
- Publication number
- CN112335660A CN112335660A CN202011206606.2A CN202011206606A CN112335660A CN 112335660 A CN112335660 A CN 112335660A CN 202011206606 A CN202011206606 A CN 202011206606A CN 112335660 A CN112335660 A CN 112335660A
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- CN
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- Prior art keywords
- fluroxypyr
- clethodim
- weeds
- weeding composition
- mass ratio
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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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/18—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with sulfur as the ring hetero atom
-
- 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
Abstract
The invention discloses a weeding composition of clethodim and fluroxypyr, wherein the effective components of the weeding composition are clethodim and fluroxypyr; the mass ratio of the clethodim to the fluroxypyr is 2.5-20: 21 to 50. The weeding composition can prevent and remove gramineous weeds and broadleaf weeds simultaneously by one-time application, has the effects of expanding a weed control spectrum and synergizing, is high in safety, reduces the application frequency and the application cost by compounding, can control the weed population transition, reduces the drug resistance of the weeds, maintains the agricultural ecological balance and protects the environment, and therefore the compounding of the gramineous weeds and the broadleaf weeds is worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a herbicide composition containing clethodim and fluroxypyr.
Background
The clethodim is an ACCase inhibitor, is quickly absorbed and transferred by plants after being applied to leaf surfaces, is transferred to a growing point at phloem to inhibit the growth of new buds, and weeds lose green firstly and then change color and die up, and are completely die up within 2-3 weeks generally. The herbicide is mainly used for preventing and removing gramineous weeds such as barnyard grass, cymbopogon flexuosus, large crabgrass, moleplant seed, green bristlegrass, cudweed and the like in a rice field, and is safe for direct sowing of rice and transplanting of rice; but the control effect on broad-leaved weeds and sedge weeds is not ideal.
Fluroxypyr is a pyridyloxyacetic acid herbicide, has a systemic conduction effect, is used after seedling, and is quickly absorbed by plants after being applied, so that sensitive plants have the reaction of typical hormone herbicides, and the plants are deformed, twisted and withered finally. The temperature has no influence on the final effect of weeding, but influences the speed of the drug effect, generally, the drug effect is slow to play at low temperature, so that the plants can stop growing after being poisoned, but do not die immediately; plants die quickly after the temperature rises. The leaching in soil is not obvious, most of the leaching solution is distributed in a surface soil layer of 0-10 cm, under the aerobic condition, the leaching solution is quickly degraded into non-toxic substances such as 2-pyridinol and the like under the action of soil microorganisms, the half-life period in soil is short, and the influence on next-stubble crops cannot be caused. The herbicide has a wide application period on cereal crops, and can be used for preventing and killing broad-leaved weeds such as cleavers, convolvulus, capsella bursa-pastoris, chickweed, amaranthus curlicutus, purslane and the like in wheat, barley, corn, grapes, orchards, pastures, forests and the like.
The herbicide composition can expand a weed control spectrum by compounding the amicarbazone and the fluroxypyr, can prevent and kill gramineous weeds and broadleaf weeds simultaneously by one-time application, and has obvious synergistic effect; and the compound is high in safety, the using dosage is reduced, the drug use frequency is reduced, the drug application cost is reduced, the weed population migration can be controlled, the drug resistance of weeds is reduced, the agricultural ecological balance is maintained, and the environment is protected, so that the compound of the two is worthy of popularization.
Disclosure of Invention
The invention aims to provide a herbicide composition containing clethodim and fluroxypyr, which has remarkable synergistic effect and wide weed control spectrum.
The purpose of the invention can be realized by the following technical scheme:
a weeding composition containing clethodim and fluroxypyr, the effective components of the weeding composition are clethodim and fluroxypyr; the mass ratio of the clethodim to the fluroxypyr is 2.5-20: 21 to 50.
In a further scheme, the mass ratio of the clethodim to the fluroxypyr is 6-14: 21-50.
In a further scheme, the mass ratio of the effective components to the mass of the weeding composition is 23.5-70%.
In a further scheme, the dosage form of the weeding composition is missible oil, dispersible oil suspending agent, aqueous emulsion or wettable powder.
In a further scheme, the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise a solvent, an emulsifier, a preservative, a dispersing agent, an antifreezing agent, a wetting agent and a thickening agent.
The invention also aims to provide application of the weeding composition to control barnyard grass, wherein the mass ratio of the clethodim to the fluroxypyr is 2.5: 40-50, 6-14:21-50 or 20: 21-40.
The third invention aims to provide the application of the weeding composition in preventing and killing cleavers and amaranthus retroflexus, wherein the mass ratio of the cleaverone to the fluroxypyr is 2.5: 40-50,6-14: 21-50 or 20: 21-29.
The active components in the weeding composition are the clethodim and the fluroxypyr, the using amount of the active components depends on the respective application amount when the weeding composition is used alone, the combination ratio of the clethodim and the fluroxypyr and the synergistic degree of the fluroxypyr, the weeding composition especially protects 2.5-20% of the active component of the clethodim and 21-50% of the active component of the fluroxypyr, and the active components are prepared into missible oil, a dispersible oil suspending agent, a suspending agent, an emulsion in water and wettable powder by adding auxiliary materials such as a solvent, an emulsifier, a preservative, a dispersant, an antifreezing agent, a wetting agent and a thickening agent.
The emulsifier is one or more of alkylphenol polyoxyethylene, triphenylethylene polyoxyethylene, benzyl phenol polyoxyethylene, phenethyl phenol polyoxyethylene, fatty alcohol polyoxyethylene, phenethyl phenol polyoxyethylene polyoxypropylene, fatty amine polyoxyethylene, castor oil polyoxyethylene, calcium dodecyl benzene sulfonate and styryl phenyl polyoxyethylene.
The antiseptic is one or more of cason, benzoic acid, sorbic acid, propionic acid, dehydroacetic acid, nipagin, sulfite, pyrohydrochloric acid, and sodium lactate.
The dispersing agent is one or more of alkylphenol polyoxyethylene ether formaldehyde condensate, ammonium sulfate, naphthalenesulfonate formaldehyde condensate, p-methoxy fatty amido benzenesulfonic acid, calcium lignosulfonate, polycarboxylate, alkylphenol polyoxyethylene ether sulfate, methylene dinaphthalene sodium sulfonate, calcium alkyl benzene sulfonate, fatty acid ester sulfate, alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether.
The antifreezing agent is one or more of calcium chloride, methanol, ethanol, ethylene glycol, propylene glycol and glycerol.
The wetting agent is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium butyl naphthalene sulfonate, sodium alkyl sulfonate, tea seed powder, Chinese honeylocust fruit powder and soapberry powder.
The thickening agent is one or more of polyvinyl acetate, organic bentonite, xanthan gum, gelatin, gum arabic, magnesium aluminum silicate, phenolic resin, hydroxymethyl cellulose and sodium alginate.
The carrier is divided into a solid carrier and a solvent, wherein the solid carrier is one or more of organic bentonite, white carbon black, kaolin, light calcium carbonate, sodium sulfate, ammonium sulfate, diatomite, starch, argil and the like; the solvent is one or more of deionized water, methyl oleate, toluene, xylene, chlorobenzene, solvent oil, alpha-methylnaphthalene, turpentine, dichloromethane, chloroform, methanol, ethanol, glycerol, ethylene glycol, butanol, isoamyl alcohol, propylene glycol, cyclohexanone, isophorone, acetophenone, ethyl acetate, propyl acetate, butyl acetate, N-Dimethylformamide (DMF), dimethyl sulfoxide (DMSO), No. 150 solvent oil, cellosolve and the like, and the solvent can be used alone or in combination.
The above various adjuvants or carriers are commercially available.
The weeding composition is mainly used for annual weeds in paddy fields and wheat fields, has a special effect on barnyard grass, and has a good inhibition effect on gramineous weeds and broadleaf weeds such as crabgrass, green bristlegrass, cuckoo, cleavers, purslane, black nightshade, weasel flower, amaranth retroflexus, dayflower, Thalathus, descurainia sophia and the like. Namely, the herbicide can simultaneously prevent and kill gramineous weeds and broadleaf weeds by one-time application, and has obvious synergistic effect. The herbicide has the characteristics of high herbicidal activity, wide herbicidal spectrum and convenient use, is safe to crops, belongs to an environment-friendly herbicide, has obvious synergistic effect by compounding the herbicide and the herbicide, reduces the using dosage by compounding, has high safety, reduces the times of using the herbicide and the application cost, can control the weed population transition, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment, so the compound of the herbicide and the herbicide is worthy of popularization.
Detailed Description
The invention is further illustrated below in the specific examples of several different dosage forms. The invention is by no means limited to these examples. All percentages in the formulation are by weight.
Firstly, formulation example of a dosage form:
example 1, 23.5% emulsifiable concentrate:
the preparation method comprises the following steps: the raw materials are put into a reaction kettle according to the proportion, stirred and mixed, then settled, sampled and analyzed to be qualified, and the product is obtained.
Example 2, 31.5% suspending agent
The preparation method comprises the following steps: the components are mixed and fed according to the proportion, stirred for 20 minutes and mixed evenly. Placing the mixture into a colloid mill for primary sanding and controlling the temperature by opening an air source, then placing the mixture into the sand mill for sanding for 2.5 to 3.0 hours, and then placing the mixture into a high-speed homogenizing, shearing and stirring machine for 10 minutes to obtain uniform liquid.
Example 3, 35% dispersible oil suspension
The preparation method comprises the following steps: the raw materials are fed according to the proportion, stirred for half an hour and uniformly mixed. Open the valve and get into the colloid mill and sand, get into the sand mill sanding, open circulating water control temperature, according to the product characteristic, select different temperatures, sand for 2.5 hours. After sanding, the mixture is evenly mixed by high-shear homogenizing and stirring for half an hour to obtain even liquid.
Example 4, 54% aqueous emulsion:
the preparation method comprises the following steps: firstly, feeding raw medicines, an emulsifier and a solvent according to a ratio, and uniformly mixing the raw medicines, the emulsifier and the solvent after high-speed shearing and stirring for 15 minutes; then the antifreeze and water are added according to the proportion and mixed evenly, and all the ingredients are mixed evenly at high speed and sheared. Mixing for half an hour, settling at normal temperature, filtering, and removing impurities and floccule to obtain uniform liquid.
Example 5, 70% wettable powder:
the preparation method comprises the following steps: the components are added into a mixing kettle according to the formula and are uniformly mixed, and the components are uniformly mixed again after passing through two processes of a jet mill and an ultrafine mill, so that the wettable powder can be prepared.
Secondly, indoor biological activity determination:
the rationality of the formulation is verified by the indoor biological activity assay of the composition herbicide of clethodim and fluroxypyr on annual weeds.
The test method comprises the following steps: a greenhouse potting method is adopted, quantitative weeds (100 plants per pot) are sown in pots, the pots are covered with fine soil with the thickness of 0.5-1 cm and then are placed in a greenhouse for culturing, when the weeds grow to 2cm after emerging, stem and leaf spraying treatment is carried out, the treatment is repeated for 4 times, and treatment without a medicament is set as a control. And (4) culturing the treated test material in a greenhouse, and regularly observing the growth condition of the target weeds. After the test treatment for 20 days, weighing the fresh weight of the overground part of weeds.
The investigation method adopts an absolute value investigation method, firstly investigates the fresh weight of the residual weeds in each pot, and then calculates the fresh weight control effect of each treatment according to the following formula: e is (C-T)/C is multiplied by 100 percent, wherein E is the actual control effect, C is the fresh weight of the control weed, and T is the fresh weight of the treated weed.
The combination of the two was evaluated for the type of action on weeds by the Gowing method. The theoretical control effect of the mixed herbicide is calculated according to the following formula: e0＝X+Y(100-X)/100
In the formula: x is the fresh weight control effect on weeds when the dosage of the clethodim is P;
y is the fresh weight control effect on weeds when the using amount of fluroxypyr is Q;
E0is a theoretical prevention effect.
Table 1: combined virulence for Echinochloa crusgalli (spraying)
As can be seen from Table 1 above, when the clethodim (A) and the fluroxypyr (B) are compounded, A + B is the E-E of the barnyard grass0A value between 8.44 and 15.73, wherein A: b is 2.5: 40-50, 6-14:21-50 or 20:21-40, E-E0Both are more than 10, which shows that the clethodim (A) and the fluroxypyr (B) have synergistic effect under the condition of the mixture ratio.
Table 2: combined virulence of herbicidal compositions against cleavers (nebulization)
As can be seen from the above table 2, when the clethodim (A) and the fluroxypyr (B) are compounded, A + B is opposite to E-E of cleavers0A value between 7.95 and 15.96, wherein A: b is 2.5: 40-50,6-14: 21-50 or 20:21 to 29, E-E0Both are more than 10, and the clethodim (A) and the fluroxypyr (B) have synergistic effect under the condition of the mixture ratio.
Table 3: combined virulence of herbicide combinations on Amaranthus retroflexus (spraying)
As can be seen from Table 3 above, when clethodim (A) and fluroxypyr (B) are complexed, A + B is the E-E of Amaranthus retroflexus0A value between 7.65 and 16.03, wherein A: b is 2.5: 40-50,6-14: 21-50 or 20:21 to 29, E-E0Both are more than 10, which shows that the clethodim (A) and the fluroxypyr (B) have synergistic effect under the condition of the mixture ratio.
Third, the embodiment of the drug effect:
test crops and subjects: the tested crop is a wheat field, and the tested object has gramineous weeds and broadleaf weeds.
The test results in Table 4 show that the comprehensive control effects of 27% of clethodim-fluroxypyr suspending agent (6: 21), 35% of clethodim-fluroxypyr dispersible oil suspending agent (6: 29) and 54% of clethodim-fluroxypyr aqueous emulsion (14: 40) are all more than 90%, wherein the control effect of 41% of clethodim-fluroxypyr dispersible oil suspending agent is optimal, and the comprehensive control effect on weeds in paddy fields and wheat fields is 96.44%. Therefore, the composition of the clethodim and the fluroxypyr in the three proportions has obvious synergistic effect, can improve the control effect and expand the weed control spectrum.
Table 4: results of drug effect test of composition of topramezone and fluroxypyr for preventing and killing weeds in wheat fields
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications can be made to the embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (7)
1. A herbicide composition containing clethodim and fluroxypyr is characterized in that: the effective components of the weeding composition are clethodim and fluroxypyr; the mass ratio of the clethodim to the fluroxypyr is 2.5-20: 21 to 50.
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the clethodim to the fluroxypyr is 6-14:21 to 50.
3. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the effective components to the mass of the weeding composition is 23.5-70%.
4. A herbicidal composition according to claim 1, characterized in that: the formulation of the weeding composition is missible oil, dispersible oil suspending agent, aqueous emulsion or wettable powder.
5. A herbicidal composition according to claim 1, characterized in that: the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise a solvent, an emulsifier, a preservative, a dispersing agent, an antifreezing agent, a wetting agent and a thickening agent.
6. Use of the herbicidal composition as claimed in claim 1 for controlling barnyard grass, characterized in that: the mass ratio of the clethodim to the fluroxypyr is 2.5: 40-50, 6-14:21-50 or 20: 21-40.
7. The application of the herbicidal composition as claimed in claim 1 in the control of cleavers and amaranthus retroflexus is characterized in that: the mass ratio of the clethodim to the fluroxypyr is 2.5: 40-50,6-14: 21-50 or 20: 21-29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206606.2A CN112335660A (en) | 2020-11-03 | 2020-11-03 | Topramezone and fluroxypyr weeding composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206606.2A CN112335660A (en) | 2020-11-03 | 2020-11-03 | Topramezone and fluroxypyr weeding composition |
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| CN112335660A true CN112335660A (en) | 2021-02-09 |
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| CN202011206606.2A Pending CN112335660A (en) | 2020-11-03 | 2020-11-03 | Topramezone and fluroxypyr weeding composition |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1492405A1 (en) * | 2002-04-03 | 2005-01-05 | Syngenta Participations AG | Herbicidal composition comprising phenylpropynyloxypyridine compounds |
| CN102724876A (en) * | 2009-10-28 | 2012-10-10 | 陶氏益农公司 | Synergistic herbicidal composition containing fluroxypyr and cyhalofop, metamifop or profoxydim |
-
2020
- 2020-11-03 CN CN202011206606.2A patent/CN112335660A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1492405A1 (en) * | 2002-04-03 | 2005-01-05 | Syngenta Participations AG | Herbicidal composition comprising phenylpropynyloxypyridine compounds |
| CN102724876A (en) * | 2009-10-28 | 2012-10-10 | 陶氏益农公司 | Synergistic herbicidal composition containing fluroxypyr and cyhalofop, metamifop or profoxydim |
| CN104285972A (en) * | 2009-10-28 | 2015-01-21 | 陶氏益农公司 | Synergistic herbicidal composition containing fluroxypyr and cyhalofop, metamifop or profoxydim |
| CN104351183A (en) * | 2009-10-28 | 2015-02-18 | 陶氏益农公司 | Synergistic herbicidal composition containing fluroxypyr and cyhalofop, metamifop or profoxydim |
| AU2010315503B2 (en) * | 2009-10-28 | 2015-08-13 | Dow Agrosciences Llc | Synergistic herbicidal composition containing fluroxypyr and cyhalofop, metamifop or profoxydim |
| CN106106455A (en) * | 2009-10-28 | 2016-11-16 | 陶氏益农公司 | Comprise fluroxypyr and cyhalofop-butyl, * azoles acyl grass amine or the synergistic herbicidal compositions of clefoxidim |
Non-Patent Citations (1)
| Title |
|---|
| 中国农业百科全书总编辑委员会农药卷编辑委员会: "《中国农业百科全书 农药卷》", 31 October 1993 * |
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