CN112335669A - Weeding composition containing oxaziclomefone and clethodim - Google Patents
Weeding composition containing oxaziclomefone and clethodim Download PDFInfo
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- CN112335669A CN112335669A CN202011180089.6A CN202011180089A CN112335669A CN 112335669 A CN112335669 A CN 112335669A CN 202011180089 A CN202011180089 A CN 202011180089A CN 112335669 A CN112335669 A CN 112335669A
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- oxaziclomefone
- clethodim
- weeding composition
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- weeding
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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
- A01N43/86—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 six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a weeding composition containing oxaziclomefone and clethodim, wherein the active ingredients of the weeding composition are clethodim and oxaziclomefone; the mass ratio of the oxaziclomefone to the clethodim is 8-30: 7.5-40. The weeding composition has a synergistic effect, is mainly used for gramineae of rice fields, nutgrass flatsedge, some broadleaf weeds and the like, and has a special effect on barnyard grass and moleplant seed. The compound can reduce the dosage, has high safety, reduces the times of drug administration, reduces the cost of drug application, can control the weed population migration, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment, so the compound of the two is worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a weeding composition containing oxaziclomefone and clethodim.
Background
Oxaziclomefone, the English name of which is oxaziclomefone, the CAS accession number of 153197-14-9, is a systemic conductive organic heterocyclic paddy field herbicide, and is absorbed by roots, stems, leaves and roots of weeds, and then the growth of target plant cells is inhibited by a weeding action mechanism different from that of other herbicides, so that stems and leaves are green and stop growing until withered. According to the biochemical test, the action mechanisms of the oxaziclomefone and the known herbicide such as respiration resistance, photosynthesis resistance, DNA biochemical synthesis resistance, RNAhemimiclook biochemical synthesis resistance, protein biochemical synthesis resistance, lipid biochemical synthesis resistance, fatty acid synthetase resistance, ACC enzyme resistance, amino acid biochemical synthesis resistance, asparagine synthetase resistance and the like are inconsistent, and the oxaziclomefone and the known herbicide are a novel action mechanism. The oxaziclomefone can effectively prevent and kill barnyard grass weeds and part of cyperaceae weeds resistant to acetolactate synthase inhibitor herbicides, and the excellent performance of the oxaziclomefone can provide more choices for preventing and killing the weeds in the paddy field.
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.
Although both oxaziclomefone and amicarbazone can prevent and kill weeds in paddy fields, the single components have low comprehensive preventing and killing effect on the total weeds in the paddy fields due to the fact that the oxaziclomefone and the amicarbazone can generate drug resistance in the using process, the resistance range is enlarged year by year, and the control effect is reduced year by year, and the aim of weeding cannot be achieved.
According to the application, the oxaziclomefone and the clethodim are compounded, so that the weed control spectrum can be expanded, and the synergistic effect between the oxaziclomefone and the clethodim is obvious; the compound can reduce the dosage, has high safety, reduces the times of drug administration, reduces the cost of drug application, can control the weed population migration, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment, so the compound of the two is worthy of popularization.
Disclosure of Invention
The invention aims to provide a weeding composition containing oxaziclomefone and clethodim, 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 oxaziclomefone and clethodim comprises the effective components of oxaziclomefone and clethodim; the mass ratio of the oxaziclomefone to the clethodim is 8-30: 7.5-40.
In a further scheme, the mass ratio of oxaziclomefone to clethodim is (15-20): 7.5-40.
In a further scheme, the mass of the effective component accounts for 15.5-70% of the total mass of the weeding composition.
In a further scheme, the dosage form of the weeding composition is suspending agent, missible oil, dispersible oil suspending agent, microemulsion and wettable powder.
In a further scheme, the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise a solvent, an emulsifier, a dispersant, an antifreezing agent, a wetting agent, a thickening agent and a preservative.
The invention also aims to provide application of the weeding composition in preventing and killing digitaria sanguinalis, wherein the mass ratio of oxaziclomefone to clethodim is 8: 40, 15-20: 7.5-40 or 30: 7.5.
the second invention aims to provide application of the weeding composition in controlling moleplant seed, wherein the mass ratio of oxaziclomefone to clethodim is (15-20): 7.5-40 or 30: 7.5-20.
The third invention aims to provide the application of the weeding composition in preventing and killing barnyard grass, wherein the mass ratio of the oxaziclomefone to the clethodim is 8: 30-40, 15-20: 7.5-40 or 30: 7.5-20.
The active components in the weeding composition are oxaziclomefone and clethodim, the dosage of the active components depends on the respective application amount when the weeding composition is used alone, the combination ratio of the oxaziclomefone and the clethodim and the synergistic degree of the oxaziclomefone and the clethodim, the weeding composition especially protects 8-30% of an active component A and 7.5-40% of an active component B of the weeding composition, and auxiliary materials including a solvent, an emulsifier, a dispersing agent, an antifreezing agent, a wetting agent, a thickening agent, a preservative and the like are added to prepare a suspending agent, missible oil, a dispersible oil suspending.
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 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 antiseptic is one or more of cason, benzoic acid, sorbic acid, propionic acid, dehydroacetic acid, nipagin, sulfite, pyrohydrochloric acid, and sodium lactate.
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.
According to the application, the oxaziclomefone and the clethodim are compounded, so that the weed control spectrum can be expanded, and the synergistic effect between the oxaziclomefone and the clethodim is obvious; and the compound can reduce the dosage, has high safety, reduces the times of drug administration, reduces the cost of drug application, can control the weed population transition, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment.
The weeding composition is used for gramineous weeds in paddy fields, also comprises sedge, some broadleaf weeds and the like, and has special effects on barnyard grass and moleplant seed; in addition, the pesticide composition has good control effects on rice barnyard grass, chickweed, sedge with abnormal shape, bidens tripartita, scirpus planiculmis, eclipta prostrata, digitaria sanguinea, green bristlegrass, bodhi, stranguria, monochoria vaginalis, rabdosia japonica and the like. The weeding composition has good selectivity on transplanted rice, quick effect before the onset until the onset, and lasting period of more than 30 d; and is safe to rice, and belongs to an environment-friendly herbicide.
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, 15.5% suspending agent:
the preparation method comprises the following steps: mixing the components according to the proportion, feeding, stirring for 20 minutes and uniformly mixing; placing the mixture into a colloid mill for primary sanding, controlling the temperature by opening an air source, sanding the mixture in the sand mill for 2.5 to 3.0 hours, and then performing high-speed homogenizing, shearing and stirring for 10 minutes; a homogeneous liquid is obtained.
Example 2, 22.5% 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 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; opening a valve, entering a colloid mill for primary sanding, entering a sand mill for sanding, opening circulating water, controlling the temperature, selecting different temperatures according to the characteristics of a product, and sanding for 2.5 hours; then homogenizing and stirring for half an hour under high shear to obtain uniform liquid.
Example 4, 40% microemulsion:
the preparation method comprises the following steps: the components are added into a high-speed shearing machine according to the proportion, the components are uniformly mixed under the action of high-speed shearing, and the average grain diameter of the components reaches the national standard to prepare the microemulsion.
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 formula is verified by measuring the indoor biological activity of the oxaziclomefone and clethodim composition herbicide on the weeds in the paddy field.
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: when the dosage of the oxaziclomefone is P, the fresh weight control effect on weeds is achieved;
y is the fresh weight control effect on the weeds when the dosage of the clethodim is Q;
E0is a theoretical prevention effect.
Table 1: combined virulence of herbicide combinations on crab grass (spraying)
As can be seen from Table 1 above, oxaziclomefone (A) and clethodim (B)) When in composition, A + B is to E-E of hairy crabgrass0A value between 7.98 and 15.57, wherein A: b is 8: 40, 15-20: 7.5-40 or 30: 7.5, E-E0Both are more than 10, which indicates that the oxaziclomefone (A) and the clethodim (B) have synergistic effect under the condition of the mixture ratio.
Table 2: combined virulence of herbicide compositions on Euphorbia lathyris (spray method)
As can be seen from Table 2 above, when oxaziclomefone (A) and clethodim (B) are compounded, E-E of A + B pairs of caper euphorbia seeds0A value between 7.23 and 14.53, wherein A: b is 15-20: 7.5-40 or 30: 7.5-20, E-E0Both are more than 10, which indicates that the oxaziclomefone (A) and the clethodim (B) have synergistic effect under the condition of the mixture ratio.
Table 3: combined virulence effects of herbicidal compositions on bald barnyard grass (spray method)
As can be seen from Table 3 above, when oxaziclomefone (A) and clethodim (B) are compounded, A + B is the E-E of barnyard grass0A value between 6.55 and 15.99, wherein A: b is 8: 30-40, 15-20: 7.5-40 or 30: 7.5-20, E-E0Both are more than 10, which indicates that the oxaziclomefone (A) and the clethodim (B) have synergistic effect under the condition of the mixture ratio.
Third, the embodiment of the drug effect:
test crops and subjects: the crop to be tested was a paddy field, and the test object was a gramineous weed mainly composed of barnyard grass and the like.
Table 4: test result of pesticide effect of oxaziclomefone and clethodim composition in preventing and killing weeds in paddy field
The test results in table 4 show that the comprehensive control effects of 22.5% oxaziclomefone-cycloxydim emulsifiable concentrate (15: 7.5), 35% oxaziclomefone-cycloxydim dispersible oil suspending agent (15: 20) and 40% oxaziclomefone-cycloxydim microemulsion (20: 20) are all over 90%, wherein the control effect of the 40% oxaziclomefone-cycloxydim microemulsion is optimal, and the comprehensive control effect on annual weeds in paddy fields is 95.06%. Therefore, the oxaziclomefone and clethodim composition with the three proportions has obvious synergistic effect, can improve the control effect and expand the weed control spectrum.
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 (8)
1. A weeding composition containing oxaziclomefone and clethodim is characterized in that: the active ingredients of the weeding composition are oxaziclomefone and clethodim; the mass ratio of the oxaziclomefone to the clethodim is 8-30: 7.5-40.
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the oxaziclomefone to the clethodim is 15-20: 7.5-40.
3. A herbicidal composition according to claim 1, characterized in that: the mass of the effective components accounts for 15.5-70% of the total mass of the weeding composition.
4. A herbicidal composition according to claim 1, characterized in that: the formulation of the weeding composition is suspending agent, missible oil, microemulsion 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 dispersing agent, an antifreezing agent, a wetting agent, a thickening agent and a preservative.
6. The use of a herbicidal composition according to claim 1 for control of large crabgrass, characterized in that: the mass ratio of the oxaziclomefone to the clethodim is 8: 40, 15-20: 7.5-40 or 30: 7.5.
7. use of a herbicidal composition according to claim 1 on Euphorbia lathyris, characterized in that: the mass ratio of the oxaziclomefone to the clethodim is 15-20: 7.5-40 or 30: 7.5-20.
8. Use of a herbicidal composition according to claim 1 in barnyard grass, wherein: the mass ratio of the oxaziclomefone to the clethodim is 8: 30-40, 15-20: 7.5-40 or 30: 7.5-20.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040146A (en) * | 2021-04-01 | 2021-06-29 | 美丰农业科技(上海)有限公司 | Weeding composition containing propanil and clethodim |
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