CN112088891A - Weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl - Google Patents
Weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl Download PDFInfo
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- CN112088891A CN112088891A CN202011152552.6A CN202011152552A CN112088891A CN 112088891 A CN112088891 A CN 112088891A CN 202011152552 A CN202011152552 A CN 202011152552A CN 112088891 A CN112088891 A CN 112088891A
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- Prior art keywords
- pyriminobac
- pretilachlor
- methyl
- oxaziclomefone
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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
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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
- A01N37/22—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 the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
Abstract
The invention provides a weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl, active ingredients comprise oxaziclomefone, pretilachlor and pyriminobac-methyl, and the mass ratio of the oxaziclomefone, the pretilachlor and the pyriminobac-methyl is 1-15:1-50: 1-15. The weeding composition can be used for preventing and removing annual weeds in the paddy field and has obvious synergistic effect.
Description
Technical Field
The invention belongs to the field of herbicides, and particularly relates to a weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl and application thereof.
Background
The oxaziclomefone is a systemic conduction type paddy field herbicide, and has the advantages of low usage amount of active ingredients, long suitable pesticide application period, good diffusivity, long lasting period and higher selection safety on paddy rice. Can effectively prevent and kill various annual weeds such as barnyard grass, moleplant seed, snakehead intestine, stranguria, edible tulip, monochoria vaginalis, amaranthus aurita, chickweed, cyperus heterophyllus and the like. Pretilachlor is a herbicide for paddy fields, can be absorbed by hypocotyls, mesocotyl and coleoptiles of plants, is slightly absorbed by roots, and directly interferes with the synthesis of proteins in weeds. And has indirect effects on photosynthesis and respiration. The damaged weed seedlings are twisted, the primary leaves are difficult to stretch out, the color of the leaves is dark green, and the growth is stopped until the seedlings die. Is suitable for preventing and controlling annual weeds in direct-seeding paddy fields. The pyriminobac-methyl is a pyrimidine systemic conduction selective herbicide, inhibits the synthesis of acetolactate synthase to hinder the biosynthesis of amino acid, stops the division of plant cells until death, and can prevent and control barnyard grass in paddy fields.
Pesticide registration number PD20200762 discloses 38% pretilachlor-pyriminobac-methyl dispersible oil suspending agent, and the two components are mixed to achieve a good control effect on annual weeds in rice direct seeding fields.
CN201710284574 discloses a herbicide composition containing oxaziclomefone and propisochlor. The herbicide composition has synergistic effect, expands the weed control spectrum, and prevents and removes gramineous, cyperaceous and broadleaf weeds in the paddy field by one-time application.
CN201510348647 discloses an oxaziclomefone-containing weeding composition and application thereof, wherein the composition consists of a first active ingredient oxaziclomefone, a second active ingredient pretilachlor or butachlor and an auxiliary agent, and the weight ratio of the first active ingredient to the second active ingredient is (0.1-100) to (10-150).
CN201510491298 discloses a pesticide composition containing pyriminobac-methyl, oxaziclomefone and sulfonylurea herbicide, wherein the mass ratio of the pyriminobac-methyl, the oxaziclomefone and the sulfonylurea herbicide is 1-20: 1-30: 1-50.
CN201410469385 discloses a paddy field weeding composition, which comprises two effective ingredients: the composition comprises an effective component a and an effective component b, wherein the effective component a is pyriminobac-methyl, the effective component b is one of oxadiazon, oxaziclomefone and oxadiargyl, and the weight part ratio of the effective component a to the effective component b is 1: 20-20: 1, the weight percentage of the sum of the two effective components in the composition is 1-90%.
According to the previous investigation of the prior art, no literature report related to compounding of oxaziclomefone, pretilachlor and pyriminobac-methyl exists in the prior art. In addition, as known in the art, the single use of the composition for a long time easily causes the drug resistance of weeds, pollutes the environment, and the research and development of a synergistic composition which can improve the weeding effect and reduce the application dosage of active ingredients is the key point of the research and development of a plurality of pesticide companies in China.
Disclosure of Invention
The weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl and the application thereof have an obvious synergistic effect. The specific technical scheme is as follows:
a weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl is characterized in that the mass ratio of the oxaziclomefone, the pretilachlor and the pyriminobac-methyl is 1-15:1-50: 1-15. Preferably, the mass ratio of oxaziclomefone to pretilachlor to pyriminobac-methyl is 1-4:20-40: 1-4; preferably 2:35: 3.
The weeding composition disclosed by the invention has the advantages that the mass percentage of the active ingredients is 5-85%; the preferable mass percentage of the active ingredients is 10-60%.
The weeding composition is mixed with common auxiliary materials on pesticides to prepare any preparation suitable for agriculture. The preferable preparation is dispersible oil suspending agent, missible oil, water dispersible granule, wettable powder, suspending agent and microemulsion.
The weeding composition provided by the invention is used for preventing and removing weeds in paddy fields. Preferably the weeds are annual grassy, broadleaf and sedge weeds.
Compared with the prior art, the invention has the following beneficial effects:
the oxaziclomefone, pretilachlor and pyriminobac-methyl compound composition has a synergistic combined effect on barnyard grass. The synergistic effect is shown when the mass ratio of the oxaziclomefone to the pretilachlor to the pyriminobac-methyl is 0.5-2:10-20: 0.5-2. The oxaziclomefone, pretilachlor and pyriminobac-methyl compound composition has different combined effects on the cyperus heterophyllus. The synergistic effect is shown when the mass ratio of oxaziclomefone to pretilachlor to pyriminobac-methyl is 0.8:6:1.2 and the mass ratio of 0.8:14: 1.2; the other proportion is additive effect.
Detailed Description
The invention will be better understood from the following examples. However, those skilled in the art will readily appreciate that the description of the embodiments is illustrative only and should not be taken as limiting the invention as described in detail in the claims
Example 1: indoor determination of oxaziclomefone, pretilachlor and pyriminobac-methyl compounded pair barnyard grass
The tested weeds: and (4) collecting barnyard grass, collecting mature seeds in the field, carrying out laboratory culture, and preserving after desensitization treatment.
Reagent to be tested: oxaziclomefone technical, pretilachlor technical and pyriminobac-methyl technical; is commercially available.
The test method comprises the following steps: accurately weighing the test medicament, and dissolving a small amount of acetone to prepare high-concentration mother liquor. When in application, Tween-80 aqueous solution with mass fraction of 0.1% is respectively diluted into the required dosage for test, and Tween-80 aqueous solution with mass fraction of 0.1% without medicament is used as blank control.
A greenhouse potting method is adopted. The soil for the test is special soil for the test collected from the land without medicine. Filling soil special for the test into a flowerpot; the flowerpot is placed in a basin for containing water, and soil is kept moist by adopting an infiltrating irrigation mode at the bottom of the basin. Sowing a certain amount of barnyard grass seeds in a flowerpot, and covering soil for 1cm after sowing. And (5) performing soil spraying treatment 24h after sowing according to the experimental design dosage (a spraying system adopts a TEEJET-9503EVS fan-shaped spray head, the spraying pressure is 275kPa, the liquid spraying amount is 450L/hm2, and the distance between the spray head and the plant is 50 cm). The experiment was repeated 3 times. After the test material is treated, the test material is placed in a greenhouse to be managed according to a conventional method, the fresh weight of the overground part of each treated weed is weighed 21 days after the treatment, and the fresh weight inhibition percentage is calculated. The combined effect of the herbicidal compositions was evaluated using the Gowing method. The actually measured fresh weight inhibition rate after compounding is represented by E. When the content of E-E0 is more than 10 percent, the synergistic effect is achieved, the content of E-E0 < -10 percent is antagonistic effect, and the content of E-E0 is additive effect between-10 percent and 10 percent.
And (4) analyzing results: the oxaziclomefone, pretilachlor and pyriminobac-methyl compound composition has a synergistic combined effect on barnyard grass. The synergistic effect is shown when the mass ratio of the oxaziclomefone to the pretilachlor to the pyriminobac-methyl is 0.5-2:10-20: 0.5-2.
TABLE 1 indoor determination of oxaziclomefone, pretilachlor and pyriminobac-methyl compounded composition on barnyard grass
Example 2: indoor determination of oxaziclomefone, pretilachlor and pyriminobac compound special-shaped sedge
The tested weeds: collecting mature seeds in the field, carrying out laboratory culture, and preserving after desensitization treatment.
Test agents and test methods: reference is made to example 1.
And (4) analyzing results: the oxaziclomefone, pretilachlor and pyriminobac-methyl compound composition has different combined effects on the cyperus heterophyllus. The synergistic effect is shown when the mass ratio of oxaziclomefone to pretilachlor to pyriminobac-methyl is 0.8:6:1.2 and the mass ratio of 0.8:14: 1.2; the other proportion is additive effect.
Table 2 indoor determination results of oxaziclomefone, pretilachlor and pyriminobac-methyl compound on cyperus heterophylla
EXAMPLE 3 formulation
40% oxaziclomefone pretilachlor pyriminobac-methyl dispersible oil suspending agent
2% of oxaziclomefone, 35% of pretilachlor, 3% of pyriminobac-methyl, 5% of castor oil polyoxyethylene ether, 3% of sodium dodecyl benzene sulfonate, 2% of organic bentonite, 2% of glycerol and the balance of vegetable oil to 100%.
38% oxaziclomefone-pretilachlor-pyriminobac-methyl wettable powder
4% of oxaziclomefone, 30% of pretilachlor, 4% of pyriminobac-methyl, 5% of polycarboxylate, 4% of NNO, 3% of calcium lignosulphonate, 4% of white carbon black and the balance of kaolin to 100%.
54% oxaziclomefone-pretilachlor-pyriminobac-methyl water dispersible granule
4.5% of oxaziclomefone, 45% of pretilachlor, 4.5% of pyriminobac-methyl, 3% of polycarboxylate, 4% of sodium dodecyl benzene sulfonate, 2% of calcium lignosulfonate, 3% of urea, 4% of sodium carboxymethylcellulose and the balance of kaolin accounting for 100%.
Example 4 measurement of the Compound field drug Effect of oxaziclomefone, pretilachlor and pyriminobac-methyl
And (3) test crops: weeds in rice fields: barnyard grass, moleplant seed, dayflower and cyperus heterophyllus.
The application method comprises the following steps: setting 5 medicament treatments, 1 blank control and repeating for 3 times; the area per cell was 20m2, and the random arrangement was made. And (4) carrying out soil spraying treatment by adopting a sprayer. And (5) investigating the weed fresh weight control effect 21d after the application.
And (4) analyzing results: the oxaziclomefone, pretilachlor and pyriminobac-methyl compound composition is used for treating weeds in rice fields: barnyard grass, moleplant seed, commelina communis and cyperus heterophyllus have good control effect.
Table 2 herbicidal Effect of the compounded preparations on paddy field
Remarking: 5% oxaziclomefone-pyriminobac-methyl dispersible oil suspending agent and 35% pretilachlor dispersible oil suspending agent.
The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that modifications may be made without departing from the invention as claimed in the invention and these modifications are within the scope of the invention.
Claims (8)
1. A weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl is characterized in that the mass ratio of the oxaziclomefone, the pretilachlor and the pyriminobac-methyl is 1-15:1-50: 1-15.
2. The weeding composition according to claim 1, wherein the mass ratio of oxaziclomefone, pretilachlor and pyriminobac-methyl is 1-4:20-40: 1-4; preferably 2:35: 3.
3. A herbicidal composition according to any one of claims 1 to 2, characterized in that the active ingredient is present in an amount of 5 to 85% by weight.
4. A herbicidal composition according to claim 3, characterized in that the active ingredient is present in an amount of 10-60% by weight.
5. A herbicidal composition according to claim 3, characterized in that it is mixed with agrochemically customary auxiliaries and is prepared in any formulation suitable for agricultural use.
6. A herbicidal composition according to claim 5, wherein said formulation is a dispersible oil suspension, emulsifiable concentrate, water dispersible granule, wettable powder, suspension, microemulsion.
7. Use of the herbicidal composition according to any one of claims 1 to 6 for controlling weeds in paddy fields.
8. Use of a herbicidal composition according to claim 7, characterized in that the weeds are annual grassy, broadleaf and sedge weeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152552.6A CN112088891A (en) | 2020-10-26 | 2020-10-26 | Weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152552.6A CN112088891A (en) | 2020-10-26 | 2020-10-26 | Weeding composition containing oxaziclomefone, pretilachlor and pyriminobac-methyl |
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| CN112088891A true CN112088891A (en) | 2020-12-18 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104304269A (en) * | 2014-09-15 | 2015-01-28 | 广东中迅农科股份有限公司 | Herbicidal composition for paddy field |
| CN104920389A (en) * | 2015-06-24 | 2015-09-23 | 陕西上格之路生物科学有限公司 | Weeding composite comprising oxaziclomefone |
| CN105265441A (en) * | 2015-11-04 | 2016-01-27 | 广东中迅农科股份有限公司 | Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor |
-
2020
- 2020-10-26 CN CN202011152552.6A patent/CN112088891A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104304269A (en) * | 2014-09-15 | 2015-01-28 | 广东中迅农科股份有限公司 | Herbicidal composition for paddy field |
| CN104920389A (en) * | 2015-06-24 | 2015-09-23 | 陕西上格之路生物科学有限公司 | Weeding composite comprising oxaziclomefone |
| CN105265441A (en) * | 2015-11-04 | 2016-01-27 | 广东中迅农科股份有限公司 | Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor |
Non-Patent Citations (1)
| Title |
|---|
| 王莹等: ""38%丙草胺•嘧草醚可分散油悬浮剂对水稻直播田一年生杂草的田间防效"", 《世界农药》 * |
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