CN111466380A - Mixed preparation containing butachlor, simetryn and oxadiargyl - Google Patents

Mixed preparation containing butachlor, simetryn and oxadiargyl Download PDF

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Publication number
CN111466380A
CN111466380A CN202010510422.9A CN202010510422A CN111466380A CN 111466380 A CN111466380 A CN 111466380A CN 202010510422 A CN202010510422 A CN 202010510422A CN 111466380 A CN111466380 A CN 111466380A
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Prior art keywords
butachlor
simetryn
oxadiargyl
composition
weeds
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Inventor
李祝
朱德涛
李玉洁
曾姓策
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Anhui Yuanjing Crop Protection Co ltd
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Anhui Yuanjing Crop Protection Co ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N37/00Biocides, 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
    • A01N37/18Biocides, 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
    • A01N37/26Biocides, 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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/661,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
    • A01N43/681,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
    • A01N43/70Diamino—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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72Biocides, 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
    • A01N43/82Biocides, 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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  • 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 relates to a weeding composition, and active ingredients of the weeding composition comprise butachlor, simetryn and oxadiargyl. The weeding composition is safe to rice, and can effectively prevent and kill various gramineae and broadleaf weeds in the paddy field. The weight ratio of the active ingredients is 1-100:1-100:1-100, preferably 1-10:1-10: 1-50, more preferably 1-10:1-10: 20-50. The herbicidal composition of the present invention can be formulated into agriculturally acceptable formulations such as emulsifiable concentrates, water dispersible granules, wettable powders, dusts, granules, suspensions, dispersible oil suspensions and macrogranules according to methods known to those skilled in the art. The herbicidal composition of the present invention is preferably in the form of a dispersible oil suspension. The composition is used for preventing and killing gramineous, broadleaf and sedge weeds in transplanted paddy fields, direct-seeding paddy rice seedling fields and seedling-throwing paddy fields.

Description

Mixed preparation containing butachlor, simetryn and oxadiargyl
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a ternary weeding composition and application thereof.
Background
The weeds in the rice field are one of the important factors influencing the rice yield, and the application of the herbicide, particularly the mixed herbicide, for preventing and killing the weeds in the rice field is an important technical measure. Meanwhile, when weeds in the rice field occur, the weed phase is complex, grassy weeds, broadleaf weeds and sedge weeds are mixed under most conditions, and the single-variety herbicide is difficult to prevent and control all the weeds in the rice field.
In the prior art, a great deal of research is carried out on the development of mixing agents, for example, CN104585204A discloses a compound preparation of pyrazosulfuron-ethyl, oxyfluorfen and oxadiargyl for preventing and killing barnyard grass, monochoria vaginalis and cyperus heterophyllus. CN104430460A discloses pyrazosulfuron-ethyl, clomazone and butachlor oil suspension agent for preventing and killing barnyard grass, large crabgrass, monochoria vaginalis and eclipta prostrata in paddy fields. CN107396928A discloses that a herbicide composition of butachlor, oxyfluorfen and simetryn has good control effect on most of weeds in transplanted paddy fields such as barnyard grass, moleplant seeds and cyperus heterophyllus in transplanted paddy fields. Due to the particularities of the action of herbicides, safety to crops is a major consideration in herbicide applications. In addition, the similar herbicides or the same compound preparation can cause succession of weed communities in the paddy field after being used for a long time, so as to induce the generation of resistant weeds.
The invention provides a safe and efficient broad-spectrum herbicide for paddy fields, which aims to effectively prevent and kill gramineous and broadleaf weeds in the paddy fields and respond to the 'reduction and synergism' call of pesticides in Ministry of agriculture.
Disclosure of Invention
The invention provides a weeding composition, and active ingredients of the weeding composition comprise butachlor, simetryn and oxadiargyl. The weeding composition is safe to rice, and can effectively prevent and kill various gramineae and broadleaf weeds in the paddy field.
The weeding composition is preferably a ternary weeding composition, and the active ingredients are butachlor, simetryn and oxadiargyl.
The weight percentage of the active ingredients in the weeding composition is 1-90%, and preferably 10-90%.
The ternary weeding composition comprises 1-90 wt% of butachlor, 1-90 wt% of simetryn and 1-90 wt% of oxadiargyl.
The weight ratio of active ingredients in the ternary weeding composition is 1-100:1-100:1-100, preferably 1-10:1-10: 1-50, more preferably 1-10:1-10: 20-50.
The herbicidal composition of the present invention can be formulated into agriculturally acceptable formulations such as emulsifiable concentrates, water dispersible granules, wettable powders, dusts, granules, suspensions, dispersible oil suspensions and macrogranules according to methods known to those skilled in the art.
The preferable preparation formulation of the weeding composition is water dispersible granules, wettable powder, suspending agent and dispersible oil suspending agent.
The herbicidal composition of the present invention is more preferably in the form of a dispersible oil suspension.
The invention also aims to provide the application of the composition in preventing and killing gramineous, broadleaf and sedge weeds in transplanted paddy fields, direct-seeded rice seedling fields and seedling-thrown rice fields.
The invention has the following beneficial effects:
1. the weeding composition is safe to rice, has high weeding activity, can effectively prevent and remove various weeds by one-time application, and has long lasting period. The application times are reduced, and the invisible damage to the rice is reduced.
2. The weeding composition of the invention has obvious synergistic control effect on barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis, and is obviously superior to a single agent, a corresponding binary composition or other ternary compositions.
3. The dispersible oil suspending agent disclosed by the invention is good in stability, excellent in low-temperature stability and heat storage stability and excellent in resuspension.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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.
Indoor toxicity test experiment
1. Purpose of the experiment
The biological activities of butachlor, simetryn and oxadiargyl on barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis are measured by adopting a stem-leaf spraying method, the combined action type of the mixing of the butachlor, the simetryn and the oxadiargyl is evaluated by adopting a Colby method, and scientific basis is provided for reasonable mixing of the butachlor, the simetryn and the oxadiargyl and proportion selection in production.
2. Materials and methods
2.1 test Agents
95% butachlor (florasulam) technical product provided by Anhui long-range crop protection company Limited;
95% of simetryn (mesotrione-methyl) technical product, provided by Anhui long-range crop protection Co.Ltd;
98% clodinafop-propargyl technical, provided by Anhui Jing crop protection, Inc.
2.2 test materials
Barnyard grass [ Echinochloa crusgalli (L.) Beauv ] collected in the field of the laboratory of the department of biological testing of the company and stored;
semen Euphorbiae [ L epichloroa chinensis (L.) Nees ] collected and stored in the field of the laboratory of the department of biological testing of the company;
arrowhead petiolus Sagittaria pygmaea Miq: collecting and storing seeds in the field of a laboratory of the Ministry of health and measurement of the company;
monochoria vaginalis (burm.f.) c.presl ]: the laboratory of the Ministry of health and survey of the company collects seeds and stores the seeds.
The test material adopted in the test shows high resistance to simetryn through preliminary tests.
2.3 test methods
2.3.1 test treatment design
(1) Butachlor 600g (a.i.)/hm2
(2) Butachlor 900g (a.i.)/hm2
(3) Butachlor 1200g (a.i.)/hm2
(4) Butachlor 1500g (a.i.)/hm2
(5) Butachlor 1800g (a.i.)/hm2
(6) Simetryn 140g (a.i.)/hm2
(7) Simetryn 200g (a.i.)/hm2
(8) Simetryn 260g (a.i.)/hm2
(9) Simetryn 320g (a.i.)/hm2
(10) Simetryn 380g (a.i.)/hm2
(11) Oxadiargyl 60g (a.i.)/hm2
(12) Oxadiargyl 80g (a.i.)/hm2
(13) Oxadiargyl 100g (a.i.)/hm2
(14) Oxadiargyl 120g (a.i.)/hm2
(15) Oxadiargyl 140g (a.i.)/hm2
(16) 600g of butachlor, 380g of simetryn, 140g (a.i.)/hm of oxadiargyl2
(17) 900g of butachlor, 320g of simetryn, 120g (a.i.)/hm of oxadiargyl2
(18) 1200g of butachlor, 260g of simetryn, 100g (a.i.)/hm of oxadiargyl2
(19) Butachlor 1500g, simetryn 200g, oxadiargyl 80g (a.i.)/hm2
(20) 1800g of butachlor, 140g of simetryn, 60g (a.i.)/hm of oxadiargyl2
(21)CK
Note: since the test material showed a higher resistance to simetryn, when the simetryn series of concentrations was set, the concentration was intentionally increased, and the final concentration was set on the basis of a preliminary experiment.
2.3.2 test of the Activity of Agents on Echinochloa crusgalli
Preparing liquid medicine according to the designed treatment dosage of 2.3.1, and preparing mother liquor of each medicament, namely respectively weighing 2.1053g of 95% butachlor technical product, 0.6316g of 95% simetryn technical product and 0.2041g of 98% oxadiargyl technical product in a volumetric flask by using a ten-thousandth electronic balance, respectively dissolving the butachlor technical product, the simetryn technical product and the oxadiargyl technical product with 5ml of acetone and water, and then fixing the volume to 100ml, so as to respectively obtain 20.0 g/L butachlor mother liquor, 6.0 g/L simetryn mother liquor and 2.0 g/L oxadiargyl mother liquor, wherein the preparation method is repeated for four times for standby treatment, and the specific preparation method is shown in table 1.
TABLE 1 preparation method of butachlor, simetryn, oxadiargyl each treatment agent (0.25 m)2Dosage of (2)
Figure DEST_PATH_IMAGE001
The barnyard grass seeds (a, i, soaking) are dibbled on the cross section area of 0.25m filled with soil after accelerating m buds per hour2The soil is covered, and then the moisture is preserved in a bottom irrigation mode until the growth reaches 3 leaves and 1 heart stage. Spraying the liquid medicine by a POTTER precision laboratory spray tower, wherein the spraying amount is 50ml per treatment, keeping the soil moist after the liquid medicine is sprayed, and setting a clear water blank control. Repeating the treatment for 4 times, weighing the fresh weight of the overground part of each treated barnyard grass 21 days after the application, calculating the survival rate of each treatment relative to a control, and evaluating the combined action type of the three mixed parts on the barnyard grass by using a Colby method. The actual control effect of the mixed herbicide is calculated according to the following formula:
E0=A×B×C×…N/100(N-1)(this test is a ternary formulation, so E0=A×B×C/10000)
In the formula:
a is the survival rate of group a relative to control obtained with herbicide 1 alone treatment;
b is the survival rate of group B relative to control obtained with herbicide 2 treatment alone;
c is the survival rate of group C relative to control obtained with herbicide 3 alone treatment;
n is the number of the mixed herbicide varieties;
E0theoretical survival (percent) for herbicide 1+ herbicide 2+ herbicide 3;
e is the actual survival rate (percentage) of the mixed herbicide.
E0-E>10% of the composition is synergistic effect; e0-E<-10% is antagonism; E-E0Values within. + -. 10% of theory are additive effects.
2.3.3 Activity test of Agents on Euphorbiae Lathyridis semen
After soaking seeds of the moleplant seed, accelerating germination and dibbling the seeds on a section area of 0.25m filled with soil2The rest of the parts in the basin are 2.3.2.
2.3.4 Activity assay of Agents on Arrowia Arrowiana
After the seeds of the short arrowhead are soaked, the seeds are germinated and dibbled on the soil-filled cross section area of 0.25m2The rest of the parts in the basin are 2.3.2.
2.3.5 Activity test of Agents on Ottelia communis
After soaking seeds of the monochoria vaginalis, accelerating germination and dibbling on a section area of 0.25m filled with soil2The rest of the parts in the basin are 2.3.2.
3. Results and analysis
As can be seen from the data in tables 2 to 5, 5 mixed agents of butachlor, simetryn and oxadiargyl with different compounding ratios are used for E of barnyard grass0E values of 6.08%, 11.51%, 10.58%, 16.74% and 14.29% respectively show certain synergistic effect; for semen Euphorbiae E0E values are respectively 8.49%, 9.46%, 11.86%, 16.48% and 15.56%, and a certain synergistic effect is shown; for short arrowhead E0E values are respectively 12.94%, 13.49%, 18.62%, 15.23% and 21.31%, and a certain synergistic effect is shown; for herba Monochorii E0E values of 4.11%, 4.74%, 11.21%, 14.33% and 8.86% respectively show certain synergistic effect. The mixing of butachlor, simetryn and oxadiargyl has synergistic control effect on barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis.
3.1 Combined action of the admixtures on barnyard grass
TABLE 2 formulation screening of butachlor, simetryn and oxadiargyl for barnyard grass (post-drug 21d)
Figure DEST_PATH_IMAGE002
Figure DEST_PATH_IMAGE003
3.2 Combined action of the combination on Euphorbiae Lathyridis semen
TABLE 3 formulation screening of a Compound Pachira Japonica with butachlor, simetryn and oxadiargyl (post-drug 21d)
Figure DEST_PATH_IMAGE004
3.3 Combined Effect of the combination on Arrowia Arrowiana
TABLE 4 formulation screening of butachlor, simetryn and oxadiargyl paired tussilago (post-drug 21d)
Figure DEST_PATH_IMAGE005
Figure DEST_PATH_IMAGE006
3.4 Combined action of the combination on Ottelia communis
TABLE 5 formulation screening of butachlor, simetryn and oxadiargyl Compound Pakistrodon halys (post-drug 21d)
Figure DEST_PATH_IMAGE007
Figure DEST_PATH_IMAGE008
4 conclusion
Butachlor has high activity on monochoria vaginalis and certain activity on barnyard grass, moleplant seed and rhizoma pleionis; the simetryn has certain activity on barnyard grass, rhizoma pleionis and herba monochoriae vaginalis within the range of experimental dosage, and has undesirable effect on moleplant seed; the oxadiargyl has certain activity on barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis within the range of the tested dosage. After the butachlor, the simetryn and the oxadiargyl are mixed, the synergistic effect on the barnyard grass, the moleplant seed, the rhizoma pleionis and the monochoria vaginalis is realized to a certain extent. Therefore, the three components are mixed to prevent and control annual weeds in the rice transplanting field.
Second, preparation examples
Other names, structural formulas and basic physicochemical parameters of the effective components of butachlor, simetryn and oxadiargyl in the product are as follows:
a) oxadiargyl
ISO common name: oxadiargyl
CIPAC digital code number: 604
CAS accession number: 39807-15-3
Chemical name: 5-tert-butyl-3- [ (2, 4-dichloro-5-propargyloxy) phenyl ] -1,3, 4-oxadiazol-2 (3H) -one of the formula:
Figure BDA0002525773050000072
experimental formula (II): c15H14Cl2N2O3
Relative molecular mass (in 2011 international relative atomic mass): 341.2
And (3) biological activity: weeding
Melting Point (. degree. C.): 131
Vapor pressure (25 ℃ C.) 2.5 × 10-5Pa
Solubility (20 ℃, g/L) water 3.7 × 10-4(ii) a Acetone 250, acetonitrile 94.6, dichloromethane > 500, ethyl acetate 126.1, methanol 14.7, n-heptane 0.9, n-octanol 3.5, toluene 77.6.
Stability: is stable to heat (15d, 54 ℃), light and water. pH4, 5, 7 is hydrolytically stable, DT507.3(pH 9).
b) Xicao jing
ISO common name: simetryn
CIPAC digital code number: 179
CAS accession number: 1014-70-6
Chemical name: 2-methylthio-4, 6-bis (ethylamino) -1,3, 5-triazine
Structural formula (xvi):
Figure BDA0002525773050000081
experimental formula (II): c8H15N5S,
Relative molecular mass (in 2011 international relative atomic mass): 213.3,
and (3) biological activity: the weeding agent is used for weeding the weeds,
melting Point (. degree. C.): 82 to 83 of the amount of the organic solvent,
boiling point (. degree. C.): 337,
vapor pressure (20 ℃ C.) 9.5 × 10-5Pa,
Solubility (20 ℃, g/L) of 0.4 percent of water, 380 percent of methanol, 400 percent of acetone, 300 percent of toluene, 4 percent of n-hexane, 160 percent of n-octanol,
stability: the product is stored at normal temperature for 2 years, the content of effective components is basically unchanged, and the product is easy to decompose under strong acid, strong alkali and high temperature.
c) Butachlor
ISO common name: butachlor
CIPAC digital code number: 354
CAS accession number: 23184-66-9
Chemical name of N- (2, 6-diethylphenyl) -N-butoxymethyl-chloroacetamide
Structural formula (xvi):
Figure BDA0002525773050000082
experimental formula (II): c17H26ClNO2
Relative molecular mass (in 2011 international relative atomic mass): 311.9
And (3) biological activity: weeding
Melting point: -0.55 deg.C
Vapor pressure (20 ℃ C.): 2.4 × 10-4Pa
Solubility (20 deg.C, g/L), water 0.02, and organic solvent such as diethyl ether, acetone, ethanol, hexane, chloroform, etc.,
stability: stabilizing the ultraviolet light; beginning to decompose at 165 ℃; the residual time in the soil is 42-70 d.
Dispersible oil suspensions are exemplified:
formulation composition
78% butyl/west-propyl-oxanone dispersible oil suspending agent
Figure BDA0002525773050000083
Figure BDA0002525773050000091
The specific preparation method is improved by referring to the preparation process for preparing the dispersible oil suspending agent in the field.
Third, field drug effect test
Field efficacy test for preventing and removing transplanted paddy weeds
The inventor carries out a test of 78% butyl-western-propyl-oxanone dispersible oil suspending agent on weeds in a paddy field in a paddy transplanting field of Changsha city in Hunan province on 5-17 th of 2019.
The field weed community mainly comprises barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis, the distribution is uniform, and the leaf age of the weeds is in the 2-4 leaf stage.
Test agents and dosages: 78% butyl-ceteroxone dispersible oil suspension agent, 40g a.i./mu, 80g a.i./mu, 120g a.i./mu.
Control agents: 6 percent of butachlor, oxyfluorfen and simetryn (2% + 2% + 2%) emulsifiable concentrate, 80g of a.i./mu,
66% pyrazosulfuron-ethyl clomazone butachlor (1% + 10% + 55%) dispersible oil suspending agent, 80g a.i./mu,
28% butachlor pyrazosulfuron-ethyl (1.4% + 26.6%) wettable powder, 40g a.i./mu,
60 percent of butachlor missible oil, 60g of a.i./mu,
30 percent oxadiargyl wettable powder, 6.0g a.i./mu,
10% of simetryn wettable powder, 20g a.i./mu.
And the clear water treatment was set as a blank Control (CK), for 10 treatments in total. Each treatment was repeated 4 times for a total of 40 cells. The area of each cell is about 30m2And the small zones are arranged randomly, and are ridged and isolated to prevent serial irrigation and flood irrigation. The application is carried out in a conventional manner. The weed control effect is investigated 14 days and 30 days after the pesticide application, and the fresh weight control effect is investigated 30 days at the same time. After the application, the phytotoxicity condition of the rice is continuously observed, and the rice yield of each cell is measured in the harvest period.
TABLE 6 dispersible oil suspension agent of 78% butyl, acerolone 14 days after drug administration for preventing and removing weeds in rice transplanting field (average plant control%)
Figure BDA0002525773050000092
TABLE 7 dispersible oil suspension agent of 78% butyl, acerolone 30 days after drug application for preventing and removing weeds in rice transplanting field (average plant control%)
Figure BDA0002525773050000101
TABLE 8 dispersible oil suspension agent containing 78% butyl, western-propyl-oxanone at 30 days after application for preventing and killing weeds in rice transplanting field (fresh weight preventing effect%)
Figure BDA0002525773050000102
The test result shows that: the average plant control effect of 78% butyl-western-propyl-oxanone dispersible oil suspending agent on barnyard grass, moleplant seed, short arrowhead and monochoria vaginalis 14 days after being applied with 40g a.i./mu of dosage is basically higher than 90%, is obviously higher than that of a control medicament 6% butyl-ethoxyxi EC and 66% pyritinoid OD, and is also obviously higher than that of a corresponding binary composition and a single agent. Namely, 30 days after the drug administration, the ternary composition of the invention can still basically maintain more than 90 percent of drug effect. The fresh weight control effect of the pesticide is basically higher than 90 percent in 30 days after the pesticide is applied, and is obviously higher than that of a control pesticide, which shows that the pesticide has better lasting period and obvious synergistic effect when being used in a field after being mixed. The prolonging of the lasting period means that the subsequent pesticide application can be reduced, and the aim of reducing the dosage and improving the efficiency is achieved.
No obvious phytotoxicity is found in the whole growth period.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A weeding composition containing butachlor is characterized in that active ingredients comprise butachlor, simetryn and oxadiargyl, and the weight ratio of butachlor, simetryn and oxadiargyl is 1-100: 1-100.
2. A herbicidal composition according to claim 1, characterized in that the weight ratio of butachlor, simetryn and oxadiargyl is preferably 1-10:1-10: 1-50, more preferably 1-10:1-10: 20-50.
3. A herbicidal composition according to claim 1, characterized in that the active ingredient is present in an amount of 1% to 90% by weight, preferably 10% to 90% by weight.
4. The herbicidal composition as claimed in claim 1, wherein the composition is in the form of aqueous solution, suspension, suspoemulsion, dispersible oil suspension, wettable powder, water dispersible granule, microcapsule suspension-suspension.
5. A herbicidal composition according to claim 1, wherein the composition is in the form of a dispersible oil suspension.
6. Use of the herbicidal composition according to claim 1 for controlling grassy, broadleaf and sedge weeds in transplanted paddy fields, direct-seeded rice seedling fields and transplanted paddy fields.
CN202010510422.9A 2020-06-05 2020-06-05 Mixed preparation containing butachlor, simetryn and oxadiargyl Pending CN111466380A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112075440A (en) * 2020-10-20 2020-12-15 安徽润农腾辉生物科技有限公司 Weeding composition containing oxadiargyl, anilofos and cilantro
CN112772647A (en) * 2021-01-26 2021-05-11 江苏润丰致远作物科技有限公司 Production formula of butachlor and 2, 4-D isooctyl ester herbicide composition

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