CN106172461A - A kind of Herbicidal composition for rice field - Google Patents
A kind of Herbicidal composition for rice field Download PDFInfo
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- CN106172461A CN106172461A CN201610555475.6A CN201610555475A CN106172461A CN 106172461 A CN106172461 A CN 106172461A CN 201610555475 A CN201610555475 A CN 201610555475A CN 106172461 A CN106172461 A CN 106172461A
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- China
- Prior art keywords
- oxadiargyl
- orthosulfamuron
- herbicidal combinations
- prometryn
- effective ingredient
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
Abstract
The present invention relates to a kind of Herbicidal composition for rice field and application thereof.Herbicidal combinations of the present invention contains orthosulfamuron, Oxadiargyl and three kinds of effective ingredient of prometryn, and effective ingredient mass ratio is 1:0.6 ~ 2.4:5 ~ 20, and three kinds of effective ingredient mass percent summation in the composition is 2 ~ 75%.Herbicidal combinations of the present invention, for the single dose or binary built compositions of equally effective composition, potentiation is obvious, and effectively expands weed control spectrum, reduces effective ingredient consumption simultaneously, improves the safety to crop.Herbicidal combinations of the present invention is applicable to prevent and kill off the most of grass family of rice terrace, broadleaved herb and sedge weed, particularly than more serious Herba Spirodelae, the tender chlorella of water etc., occurrence injury in the rice terrace of some areas is had good preventive effect, and Oryza sativa L. is showed safety.
Description
Technical field
The present invention relates to a kind of Herbicidal composition for rice field and application thereof.Especially a kind of by orthosulfamuron, Oxadiargyl
Carry out, with three kinds of effective ingredient of prometryn, the Herbicidal combinations that compounds, belong to technical field of pesticide.
Background technology
Orthosulfamuron (Orthosulfamuron), chemical name 1-(4,6-dimethoxypyridin-2-base)-3-[2-(dimethyl
Carbamoyl) phenylsulfamoyl] urea, a kind of sulfonylurea herbicide, can be through weeds leaf, root absorption, by the second of weeds
Acyl lactic acid synzyme (ALS), stops the synthesis of plant branched-chain amino acid, thus stops the synthesis of weeds protein, make weeds thin
Born of the same parents divide stopping, and last weeds are withered.Can be used for rice terrace and prevent and kill off barnyard grass, dried tuber and part broad leaved weed.
Oxadiargyl (Oxadiargyl), chemical name 5-tertiary butyl-3-(2,4-bis-chloro-5-(propargyl oxygen) phenyl)-1,
3,4-diazole-2-(3H)-one, are the one novel oxadiazoles nitrogen heterocyclic ring class weedings of Rhone-Poulenc Company's exploitation
Agent, mainly through plumelet, seedling and root absorption, by be accumulated in grow vigorous position and suppress proporphyrinogen oxidase activity and
Play herbicide effect.Can be used for Oryza sativa L., Rhizoma Solani tuber osi, Helianthi, vegetable, Radix Betae, orchard etc. and prevent and kill off annual gramineae, Cyperaceae
With broadleaved herb and part perennial weeds.
Prometryn (prometryn), chemical name 2-methyl mercapto-4, double (the isopropylamino)-1,3,5-triazines of 6-, a kind of three nitrogen
Inhale selective herbicide in benzene class, can absorb through root and stem and leaf and conduct.Best to the Weed-control effect just sprouted.It is applicable to water
Rice, Cotton Gossypii, Semen sojae atricolor, wheat and barley, Semen arachidis hypogaeae, Helianthi, Rhizoma Solani tuber osi, fruit tree, vegetable fields prevent and kill off barnyard grass, Herba Digitariae, Semen Euphorbiae, Herba Setariae Viridis,
Annual gramineae and the broadleaved herbs such as Herba Amaranthi tricoloris, knotweed, Herba chenopodii, amur foxtail.
In rice terrace, Herba Spirodelae, the tender chlorella of water occur in some areas large area, the growth of serious harm Oryza sativa L..First Herba Spirodelae,
The tender chlorella growth of water is on water layer surface, rice field, and reproduction speed is quite fast, and this just makes the water temperature in rice on honda and mud temperature
Reduce, thus affect the temperature requirement of paddy growth.Herba Spirodelae, the tender chlorella of water at surface, rice field amount reproduction and cover simultaneously,
The gas exchange of strong influence rice root again, permeability is the best easily causes Achlya spp, rotten and sheath rot disease etc.
Physiological disturbance.And Herba Spirodelae, water tender chlorella amount reproduction, compete nutrition with Oryza sativa L., the life of Oryza sativa L. will certainly be had a strong impact on
Long growth, and ultimately result in the decline of rice yield and quality.
Generally can the most effectively prevent and kill off Herba Spirodelae according to practical effect feedback prometryn single dose, but it is to phase in Lemna
The preventive effects such as the more difficult resistance green grass or young crops duckweed prevented and kill off and duckweed can be significantly reduced.And be used alone a kind of herbicide and there is weed control spectrum
Narrow, integrated control effect is undesirable, dosage is higher, and weeds are easier to produce the problem such as resistance.
Chinese patent CN 103960268A " a kind of containing Oxadiargyl and the herbicidal composition of orthosulfamuron " discloses
A kind of herbicidal composition, its active component is Oxadiargyl and orthosulfamuron, and weight ratio is 5:1～1:3.Can be the most anti-
Harness the river the weeds such as rice field Herba monochoriae vaginalis, barnyard grass and Herba Cyperi Difformis, but it is not directed to prevent rice terrace Herba Spirodelae, the tender chlorella of water
Control.
Inventor is in tackling key problem rice terrace Herba Spirodelae (particularly resistance green grass or young crops duckweed and duckweed), water tender chlorella control technology relevant problem mistake
Finding in journey, orthosulfamuron, Oxadiargyl and three kinds of effective ingredient of prometryn are compounding, and its mechanism of action is different, the most right
Annual gramineae, Cyperaceae and the broad leaved weeds such as barnyard grass, Herba monochoriae vaginalis and the Herba Cyperi Difformis generally occurred in rice terrace have very well
Preventive effect, occurrence injury in the rice terrace of some areas is had good preventive effect than more serious Herba Spirodelae, the tender chlorella of water simultaneously, and
And it is the safest to Oryza sativa L. under certain proportioning and using dosage.
Have not yet to see and be related to the relevant of orthosulfamuron, Oxadiargyl and three kinds of effective ingredient complex weedicides of prometryn
Report.
Herbicidal combination composition formula containing orthosulfamuron, Oxadiargyl and three kinds of effective ingredient of prometryn is sieved by the present inventor
Choosing and use technology thereof are furtherd investigate, and through lot of experiments, complete the present invention.This Herbicidal combinations can effectively solve the problem that mesh
The field rotating medicine dosage that front preventing and treating paddy field weed is faced is big, and herbicide access times are many, and pesticide residues are serious, and weeds are more difficult
Thoroughly prevent and kill off and easily produce the problems such as resistance.
Summary of the invention
It is an object of the invention to, not enough for prior art, it is provided that one has obvious synergistic function, Oryza sativa L. is pacified
Entirely, weeds spectrum is wide, and low-residual, low cost, the effective ingredient that can effectively delay herbicide resistance to produce is orthosulfamuron, propine
The Herbicidal composition for rice field that oxadiazon and prometryn compound.
Realizing the technical solution adopted in the present invention is: Herbicidal combinations of the present invention is with orthosulfamuron, Oxadiargyl and flutters
Grass is effective ingredient only, and the mass ratio of described orthosulfamuron, Oxadiargyl and prometryn is 1:0.6～2.4:5～20.
The weight of described orthosulfamuron, Oxadiargyl and prometryn accounts for the 2～75% of Herbicidal combinations gross mass.
Described auxiliary agent includes wetting agent, dispersant, disintegrating agent, binding agent, emulsifying agent, thickening agent, synergist, preservative and fills out
Material or carrier etc..
Described wetting agent is aliphatic alcohol sulfate, fatty alcohol-polyoxyethylene ether, polyoxyethylenated alcohol sodium sulfate, polyoxy second
Alkene-polyoxypropylene block polymer, benzene sulfonamide acid alkali metal salt, dialkyl succinylsuccinate sulfonated ester, lignosulfonates, alkyl
One or more in phenol polyethenoxy ether, alkylphenol polyoxyethylene formaldehyde condensation products, Saponin.
Described dispersant is lignosulfonates, alkylbenzenesulfonate, alkylphenol polyoxyethylene, alkylnaphthalene sulfonate, N-first
Base fatty acyl group-taurate, alkylphenol polyoxyethylene formaldehyde condensation products, aralkyl benzene sulfonate, alkyl naphthalene sulfonic acid formaldehyde
One or several in condensation substance sodium salt, aralkyl naphthalene sulfonic acid-formaldehyde condensation product sodium salt, polycarboxylate, aliphatic amine polyoxyethylene ether
Kind.
Described disintegrating agent is one or more in ammonium sulfate, sodium chloride, carbamide, starch or starch derivatives.
Described binding agent is Polyethylene Glycol, sodium polyacrylate, polyox-yethylene-polyoxypropylene block copolymer, xanthan gum or dextrin
In one or more.
Described emulsifying agent is castor oil polyoxyethylene ether, alkylphenol polyoxyethylene phosphate ester, phenyl phenol polyoxyethylene ether, benzene second
One or more in alkenyl benzene phenol polyethenoxy ether, fatty alcohol-polyoxyethylene ether, alkylbenzene naphthenic acid salt.
Described thickening agent is xanthan gum, gelatin, arabic gum, guar gum, sodium alginate, Carboxymethyl cellulose sodium, polyvinyl alcohol, gathers
One or more in acrylamide, meteorological white carbon, sulphuric acid magnalium, kieselguhr, organic spray profit soil.
Described synergist is the one or several in poly-trisiloxanes, fatty alcohol-polyoxyethylene ether, succinic acid di-isooctyl sulfonate
Kind.
Described preservative is one or more in sodium benzoate, Kazon.
Described carrier or filler are Kaolin, kieselguhr, attapulgite, bentonite, clay, potter's clay, Talcum, white carbon, lightweight
One or more in calcium carbonate, flour, wood powder, corncob powder, ammonium sulfate, sodium sulfate.
The dosage form of Herbicidal combinations of the present invention, can be processed into granule, wettable powder, water dispersible granules, granula subtilis, effervescent tablet
The dosage form that the applicable agricultural production such as agent uses.
Herbicidal combinations of the present invention, broad weed-killing spectrum, herbicidal effect is notable, especially to occurrence injury ratio in the rice terrace of some areas
More serious Herba Spirodelae, the tender chlorella of water have good preventive effect.Crop Oryza sativa L. is showed safety simultaneously.And due to each effective ingredient
Action site in plant is different with model of action, therefore according to existing resistance generation theory of development, weeding of the present invention
Generation and the development of herbicide resistance can effectively be avoided, delay or be controlled to compositions.
Detailed description of the invention
In order to make those skilled in the art be better understood from the essence of the present invention, come the present invention below in conjunction with specific embodiment
It is further described, but does not limit the invention to these detailed description of the invention.One skilled in the art would recognize that
All alternatives, improvement project and the equivalents potentially included in present invention encompasses Claims scope.
In embodiments below, effective ingredient all uses 98% orthosulfamuron TC, 96% Oxadiargyl TC and 95% prometryn
TC, each component percentages is weight percent content.
Example of formulations 1: 50% orthosulfamuron. Oxadiargyl. prometryn wettable powder
By former for orthosulfamuron medicine 4 kilograms, the former medicine of Oxadiargyl 6 kilograms, the former medicine of prometryn 40 kilograms, wetting agent dodecyl
Through comminution by gas stream after mix homogeneously in 1.5 kilograms of sodium sulfate, dispersant NNO 7 kilograms, fine particle calcium carbonate 41.5 kilograms input mixing kettle
Obtain wettable powder.
Example of formulations 2: 75% orthosulfamuron. Oxadiargyl. prometryn water dispersible granules
By former for orthosulfamuron medicine 6 kilograms, the former medicine of Oxadiargyl 12 kilograms, the former medicine of prometryn 57 kilograms, wetting agent EFW 2,000
Gram, dispersant polycarboxylate WG7 7 kilograms, glucose 5 kilograms, Kaolin 11 kilograms put in mixing kettle air-flow after mix homogeneously
Pulverizing obtains powder, then add water kneading pelletize and drying obtain water dispersible granules.
Example of formulations 3:5% orthosulfamuron. Oxadiargyl. prometryn granule
By former for orthosulfamuron medicine 0.3 kilogram, the former medicine of Oxadiargyl 0.7 kilogram, the former medicine of prometryn 4 kilograms, wetting agent EFW 1
Kilogram, dispersant NNO 4 kilograms, adhesive C MC0.5 kilogram, Kaolin 89.5 kilograms put in mixing kettle gas after mix homogeneously
Stream pulverizing obtain powder, then add water kneading pelletize and drying obtain granule.
Example of formulations 4:24% orthosulfamuron. Oxadiargyl. prometryn granula subtilis
Former for orthosulfamuron medicine 2 kilograms, the former medicine of Oxadiargyl 2 kilograms, the former medicine of prometryn 20 kilograms, wetting agent are pulled open powder 1
Kilogram, pulverize that to obtain powder stand-by after dispersant NNO 4 kilograms, 41 kilograms of mix homogeneously of Kaolin, perlite 20 kilograms addition
Mixing kettle adds in whipping process liquid paraffin 10 kilograms adsorb, after adsorbing 30 minutes, add the powder that above-mentioned steps obtains
Agent carries out mixing and absorption, obtains granula subtilis after adsorbing 30 minutes.
Example of formulations 5:3% orthosulfamuron. Oxadiargyl. prometryn effervescent tablet
By former for orthosulfamuron medicine 0.2 kilogram, the former medicine of Oxadiargyl 0.5 kilogram, the former medicine of prometryn 2.3 kilograms, wetting agent fat
Fat polyoxyethylenated alcohol 2 kilograms, sodium bicarbonate 15 kilograms, 18 kilograms of tartaric acid, 12 kilograms of sodium sulfate, Kaolin 50 kilograms mixing
After uniformly, comminution by gas stream obtains powder, then carries out tabletting and obtains effervescent tablet.
Raw survey embodiment 1
Orthosulfamuron, Oxadiargyl and prometryn single dose and the compounding indoor biological active determination test continuous to duckweed and water
For examination target: duckweed and water silk floss be field gather, sieve and wash select later robust growth and growing way basically identical
Plant, is respectively placed in the plastic culture case of 32*45*24, and in greenhouse, unified cultivation is bred.
Reagent agent: 98% orthosulfamuron TC, 96% Oxadiargyl TC and 95% prometryn TC.
Test medicine and preparation: weigh a certain amount of former medicine, select suitable organic solvent to dissolve and be made into mother solution, by arranging dosage
Test dose is become to process with the distilled water diluting containing 0.1% tween 80.
Test single dose and dosage are arranged: orthosulfamuron (numbering A): 30,52.5 and 75ga.i/hm2 (numbering respectively A1～
A3)；Oxadiargyl (numbering B): 48,72 and 95ga.i/hm2 (numbering is respectively B1～B3)；Prometryn (numbering C): 300,
600 and 900ga.i/hm2 (numbering is respectively C1～C3)；
Test medicine is mixed and proportioning: orthosulfamuron (numbering A1～A3) Oxadiargyl (numbering B1～B3) and flutter grass
Only (numbering C1～C3), each dosage is compounded into 27 complex treatments respectively.
With reference to " pesticide indoor biological chemical assay test rule herbicide the 9th part: herbicide for paddy field active determination test
Stem and leaf nebulization, NY/T 1155.9-2008 " and " pesticide indoor biological chemical assay test rule herbicide the 7th part: mixture
Synergy measures, NY/T 1155.7-2006 " carry out test process.Often process and set 4 repetitions, separately set blank.Process
Rear routine observation duckweed and the reaction symptom of water silk floss.
Investigation method: 14 days range estimation target damage symptoms and growth inhibited situation after medicine, target uses filter paper after draining away the water
Suck residual moisture, and calculate fresh weight, evaluate the medicament virulence to target with fresh weight inhibition.
Fresh weight inhibition (%)=comparison fresh weight-process fresh weight/comparison fresh weight * 100.
Synergy evaluation methodology: evaluate herbicide mode of application (NY/T1155.7-2006), examination by Colby method
Test and the results are shown in Table 1.In table, E0 is the mixed rear theoretical preventive effect of a, b, c；E is the actual measurement preventive effect after A, B, C use with；As E-E0 ＞ 10%
Time, after mixture is described, medicament produces potentiation；As E-E0 ＜-10%, after mixture is described, medicament produces antagonism；And work as
The value of E-E0 is between ± 10% time, and after mixture is described, medicament produces summation action.
Table 1: orthosulfamuron, Oxadiargyl and prometryn single dose and the compounding indoor virulence test result continuous to duckweed and water
From the indoor virulence test result of table 1, orthosulfamuron, Oxadiargyl and prometryn are in test ratio range
Respectively process and duckweed is all produced Synergistic or positive summation action.
From the indoor virulence test result of table 1, orthosulfamuron, Oxadiargyl and prometryn are in test ratio range
Each process all produces synergistic function to water silk floss.Raw survey embodiment 2
Orthosulfamuron, Oxadiargyl and prometryn single dose and the compounding indoor biological active determination test to chlorella
For examination target: chlorella field gathers, and is respectively placed in the plastic culture case of 32*45*24, the unified cultivation breeding in greenhouse.
Reagent agent: 98% orthosulfamuron TC, 96% Oxadiargyl TC and 95% prometryn TC.
Test single dose and dosage are arranged: orthosulfamuron (numbering A): 30,52.5 and 75ga.i/hm2 (numbering respectively A1～
A3)；Oxadiargyl (numbering B): 48,72 and 95ga.i/hm2 (numbering is respectively B1～B3)；Prometryn (numbering C): 300,
600 and 900ga.i/hm2 (numbering is respectively C1～C3)；
Test medicine is used with and proportioning: orthosulfamuron (numbering A1～A3) Oxadiargyl (numbering B1～B3) and prometryn
(numbering C1～C3), each dosage is compounded into 27 complex treatments respectively.
With reference to " pesticide indoor biological chemical assay test rule herbicide the 10th part: photosynthetic suppressive herbicidal activity measures
Test pellet algae method, NY/T 1155.10-2011 " and " pesticide indoor biological chemical assay test rule herbicide the 7th part:
Mixture synergy measures, NY/T 1155.7-2006 " carry out test process.Often process and set 4 repetitions, separately set blank.
Investigation method: measure 25 DEG C, continues 5000Lx illumination, and 100r/min rotates concussion and cultivates 4d, calculates and measures culture fluid
Light absorption value at 680nm, calculates chlorella suppression ratio, and evaluates the medicament virulence to target with this.
Suppression ratio (%)=(comparison light absorption value-process light absorption value)/comparison light absorption value * 100.
Synergy evaluation methodology: evaluate herbicide mode of application (NY/T1155.7-2006), test knot by Colby method
Fruit is shown in Table 2.In table, E0 is the mixed rear theoretical preventive effect of a, b, c；E is the actual measurement preventive effect after A, B, C use with；As E-E0 ＞ 10%,
After mixture is described, medicament produces potentiation；As E-E0 ＜-10%, after mixture is described, medicament produces antagonism；And work as E-
The value of E0 is between ± 10% time, and after mixture is described, medicament produces summation action.
Table 2: orthosulfamuron, Oxadiargyl and prometryn single dose and the compounding indoor virulence test result to chlorella
From the indoor virulence test result of table 1, orthosulfamuron, Oxadiargyl and prometryn are in test ratio range
Respectively process the synergistic function that chlorella is all produced highly significant.
According to Tables 1 and 2 orthosulfamuron, Oxadiargyl and prometryn single dose and compounding to duckweed, the tender chlorella of water
Indoor virulence test result, it is known that orthosulfamuron, Oxadiargyl and the reasonability of prometryn ternary built Herbicidal combinations
And feasibility.
Application Example 1:
Orthosulfamuron, Oxadiargyl and prometryn ternary built Herbicidal combinations prevent and kill off the paddy field weed test of pesticide effectiveness
Test medicine:
(1) embodiment 1: 50% orthosulfamuron. Oxadiargyl. prometryn (4:6:40) wettable powder
(2) embodiment 2:75% orthosulfamuron. Oxadiargyl. prometryn (6:12:57) water dispersible granules
(3) embodiment 3:5% orthosulfamuron. Oxadiargyl. prometryn (0.3:0.7:4.0) granule
(4) embodiment 4:24% orthosulfamuron. Oxadiargyl. prometryn (2:2:20) granula subtilis
(5) embodiment 5:3% orthosulfamuron. Oxadiargyl. prometryn (0.2:0.5:2.3) effervescent tablet
(6) comparison medicament 1:50% orthosulfamuron water dispersible granules
(7) comparison medicament 2: 80% Oxadiargyl wettable powder
(8) comparison medicament 3:50% prometryn wettable powder
Trial crops and object: sample rice varieties is yellow China, the Oryza sativa L. 3-4 leaf phase, field main weeds have duckweed and barnyard grass,
Herba monochoriae vaginalis, cyperus iria and Paspalum distichum etc..
Test method: each test processes and sets 4 repetitions, 36 process community altogether, often process community 20m2, and random district group is arranged
Row.Set artificial weeding and clear water control treatment simultaneously.Each medicament is converted fine earth by test dose every mu and is uniformly spread fertilizer over the fields.At experimental investigation
Managing latter 15 days weeds strain preventive effects and 30 days weeds fresh weight preventive effects, result of the test is shown in Table 3 and table 4.
Preventive effect (%)=(comparison weeds strain number or fresh weight-process weeds strain number or fresh weight)/comparison weeds strain number or fresh weight * 100.
According to observing paddy growth situation during test, find that test medicine (embodiment 1～embodiment 5) is equal without notable to Oryza sativa L.
Poisoning produces.
Table 3: 15 days each test medicines strain preventive effect to weeds in field after dispenser
Table 4: 30 days each test medicines fresh weight preventive effect to weeds in field after dispenser
By the field control effectiveness test result of table 3 and table 4, find that embodiment 1～embodiment 5 press above-mentioned recommended dose dispenser, to water
Herba Spirodelae duckweed in rice field and the preventive effect of barnyard grass, Herba monochoriae vaginalis, Paspalum distichum and cyperus iria are all more than 90%, and it is right to be significantly higher than
According to medicament, integrated control effect highly significant.Process of the test does not all find that test medicine (embodiment 1～embodiment 5) is to Oryza sativa L. simultaneously
Notable poisoning is had to produce.Application Example 2:
Test medicine is with Application Example 1 trial crops and object: sample rice varieties is pine round-grained rice 20, after rice transplanting 20 days, field
Main weeds has water silk floss, chlorella and barnyard grass, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.), Herba Scirpi Tabernaemontani etc..
Test method: each test processes and sets 4 repetitions, experimental plot 20m2, random district group arranges.Set simultaneously artificial weeding and
Clear water control treatment.Each medicament is converted fine earth by test dose every mu and is uniformly spread fertilizer over the fields.Experimental investigation processes latter 15 days weeds strain preventive effects
With 30 days weeds fresh weight preventive effects, result of the test was shown in Table 5 and table 6.
Table 5: 15 days each test medicines strain preventive effect to weeds in field after dispenser
Table 6: 30 days each test medicines fresh weight preventive effect to weeds in field after dispenser
By the field control effectiveness test result of table 5 and table 6, find that embodiment 1～embodiment 5 press above-mentioned recommended dose dispenser, to water
The preventive effect of water silk floss, chlorella and barnyard grass, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.) and Herba Scirpi Tabernaemontani in rice field is all remarkably higher than comparison medicament, and integrated control effect is the most aobvious
Write.Process of the test does not all find that Oryza sativa L. is had notable poisoning to produce by test medicine (embodiment 1～embodiment 5) simultaneously.
As can be seen here, this ternary built weeding group being made up of orthosulfamuron, Oxadiargyl and prometryn three effective ingredient
Compound, the herbicidal effect of more single medicament significantly improves, and shows fabulous potentiation, miscellaneous to grassy weed, broad-leaved section
Grass and sedge weed are respectively provided with preferable prevention effect, have widened weed control spectrum, particularly tender green to Herba Spirodelae in rice terrace, water
Algae has good preventive effect.
Medicament usage amount can be effectively reduced, while reducing peasant's drug cost, reduce the impact on environment.
Herbicidal combinations of the present invention, easy to use, it is worth in agriculturally popularization and application.
Although the present invention is described in detail the most with a general description of the specific embodiments, but in the present invention
On the basis of, can to make further modification or improvement.This will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (7)
1. a Herbicidal composition for rice field, it is characterised in that: have containing orthosulfamuron, Oxadiargyl and prometryn three kinds
Effect composition, effective ingredient mass ratio is 1:0.6 ~ 2.4:5 ~ 20.
Herbicidal combinations the most according to claim 1, it is characterised in that: orthosulfamuron, Oxadiargyl and prometryn
Three kinds of effective ingredient mass percent summation in the composition is 2 ~ 75%；Surplus is the most acceptable insecticides adjuvant, load
Body and filler etc..
3. according to the Herbicidal combinations described in claim 1 and 2, it is characterised in that: granule, wettable powder can be processed into
The dosage forms such as agent, water dispersible granules, granula subtilis, effervescent tablet.
Herbicidal combinations the most according to claim 3, it is characterised in that: described conventional pesticide auxiliary agent is lived selected from pesticide surface
The mixture of one or more arbitrary proportions in property agent, emulsifying agent, dispersant etc..
Herbicidal combinations the most according to claim 4, it is characterised in that: described carrier or filler are selected from Kaolin, diatom
The mixture of one or more arbitrary proportions in soil, fine particle calcium carbonate, white carbon etc..
6. according to the Herbicidal combinations described in claim 1 ~ 5, it is characterised in that: it is applicable to prevent and kill off the most of standing grain of rice terrace originally
Annual and the part perennial weeds such as section, broadleaved herb and sedge weed.
Herbicidal combinations the most according to claim 6, it is characterised in that: described paddy field weed is that Herba Spirodelae, water are tender green
Algae.
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| CN107950544A (en) * | 2017-10-23 | 2018-04-24 | 浙江天丰生物科学有限公司 | A kind of Herbicidal combinations |
| CN109997884A (en) * | 2019-04-09 | 2019-07-12 | 东北农业大学 | A method of it is continuous using biostatic agent control rice field water |
| CN114668020A (en) * | 2020-12-24 | 2022-06-28 | 宁波三江益农化学有限公司 | Algae control composition |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107006494A (en) * | 2017-02-09 | 2017-08-04 | 浙江天丰生物科学有限公司 | Rice field Herbicidal combinations |
| CN107950544A (en) * | 2017-10-23 | 2018-04-24 | 浙江天丰生物科学有限公司 | A kind of Herbicidal combinations |
| CN109997884A (en) * | 2019-04-09 | 2019-07-12 | 东北农业大学 | A method of it is continuous using biostatic agent control rice field water |
| CN109997884B (en) * | 2019-04-09 | 2021-01-19 | 东北农业大学 | Method for controlling paddy field spirogyra by using biological inhibitor |
| CN114668020A (en) * | 2020-12-24 | 2022-06-28 | 宁波三江益农化学有限公司 | Algae control composition |
| CN114668020B (en) * | 2020-12-24 | 2024-03-12 | 宁波三江益农化学有限公司 | Algae control composition |
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Application publication date: 20161207 |