CN105580810A - Herbicide composition containing halauxifen-methyl and diflufenican - Google Patents
Herbicide composition containing halauxifen-methyl and diflufenican Download PDFInfo
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- CN105580810A CN105580810A CN201610145994.5A CN201610145994A CN105580810A CN 105580810 A CN105580810 A CN 105580810A CN 201610145994 A CN201610145994 A CN 201610145994A CN 105580810 A CN105580810 A CN 105580810A
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- diflufenican
- fluorine chloropyridine
- chloropyridine ester
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
Abstract
The invention belongs to the technical field of farm chemical herbicides, and particularly relates to a herbicide composition containing halauxifen-methyl and diflufenican. The herbicide composition is suitable for wheat fields. The weight ratio of the active ingredient halauxifen-methyl to the active ingredient diflufenican ranges from 1:1.6 to 1:100. According to the herbicide composition, the weed control spectrum is broadened, the control effect is enhanced, the situation that the herbicide resistance of weeds can be rapidly generated when weed control is performed with a single herbicide is avoided, generation of the herbicide resistance of weeds is retarded, the dosage is reduced, the use cost is lowered, and environmental pollution is relieved.
Description
Technical field
The invention belongs to pesticide herbicide technical field, the one that is specifically related to be applicable to wheat paddock contains fluorine chloropyridine esterHerbicidal composition with diflufenican.
Background technology
Wheat is one of China's staple food crop, and its cultivated area and total output are only second to paddy rice, national cultivated areaReach more than 3,000 ten thousand hectares, approximately 4.5 hundred million mu, account for the 22%-30% of national cultivated area, be about the 20%-of cereal crops sown area27%, approximately 100,000,000 tons of wheat total outputs, reach the 22%(Wu Ming honor of total output of grain etc., and 2013, agricultural chemicals). Wheat is that China is mainCommodity food and strategic reserves grain kind, in grain-production, circulation and consumption, there is critical role, development Wheat Production to meState's national economic development and people's lives are significant. According to national weeds reconnaissance information, China's wheat weeds kindHave kind more than 200, crop smothering area accounts for the more than 30% of wheat planting area, and loss accounts for 15% of wheat total output. Therefore wheatlandControl of weeds is one of important process of wheat planting.
Herbicide is the conventional measure of current wheat weeds control, to promoting wheat yield to improve and saving planting cost toolThere is important effect. But long-term, the large scale application of herbicide, there is Weed Resistance, kind in farmland weed chemical controlGroup's succession and drug injury problem are on the rise, and have a strong impact on the high yield of wheat and safety (Wei Youhai, the Hubei of good harvest and succession cropAgricultural sciences, 2011.4). At present, in wheatland there are some drawbacks in conventional medicament. As phonetic in sulfonylurea herbicide tribenuron-methyl, benzylThe grand consumption of sulphur is too high, and late use meeting causes poisoning to succession crop peanut, soybean with mistake. Phenoxy carboxylic acid herbicides 2,4-drips fourthEster, mcpa sodium consumption are too high and use and improperly easily cause chemical injury of crops to produce drift can to produce near dicotyledonous cropsCrude drug evil.
Long-term use single herbicide to prevent and kill off can to cause susceptible weeds quantity to decline, insensitive or malignant weed quantitativelyRise, cause that weed community changes. In the winter wheat producing region of the single use of herbicide, wheat weeds group has occurred seriousChange, the malignant weed that the multiple herbicides such as clearvers, wartwort, grandmother's sodium, shepherd's purse are all difficult to control increases year by year, and serious shadowThe results of wheat crop output are rung.
Diflufenican, CAS 83164-33-4; English name Diflufenican; English synonym dff, Kwarc,Couger, Brodal, Canyon, Legato, JAVELIN, FENICAN, B38544, FR1078; Chinese synonym pyrrole fluorine grassAmine, 2, the chloro-2-of 4-bis-(Α, Α, Α-trichlorine fluorine m-phenoxy)-3-pyridine anilide, 2', fluoro-[2-(the 3-fluoroform of 4'-bis-Phenoxyl)]-3-pyridine anilide, 2 ', 4 '-bis-fluoro-2-(α, α, α-methyl fluoride m-phenoxy)-3-pyridine anilide;CBNumber is CB4370925. Diflufenican is a kind of acetamide-group herbicides, before and after weeds germinate, uses and can show shape at soilBecome the medicine soil layer of anti-leaching, keep active whole growth period crop. When weed germination is by medicine soil layer young shoot or the equal energy of root systemAbsorb medicament, Diflufenican has the carotenoid of inhibition biosynthesis effect, carotenoid in the weeds plant of absorption medicamentContent declines, and causes chlorophyll destroyed, membranolysis, and weeds show as young shoot decolouring or white, and last whole strain is wiltedDead. Dead speed is relevant with light intensity, and light intensity is fast, slow a little less than light. Diflufenican is morning before winter wheat bud and after budPhase uses wheat growth safety. If use before bud, barley and rye slight sensitive, but as large in continued when dispenser before budRain, the especially rainfall of bud phase, can cause crop leaf temporarily to decolour, but generally can recover. Winter wheat, than spring wheat safety, is sowed in springOn cereal, after bud, use than using safety before bud early stage. As Rubiaceae (clearvers, Rubia tinctrum), Scrophulariaceae (Veronica), violetDish section (pansy), Amaranthaceae (three-coloured amaranth), Caryophyllaceae (chickweed), Labiatae (yellow weasel hemp nettle), Malvaceae and polygonaceae plant. PhaseInstead, to some genus of Umbelliferae (carrot) and composite family, nearly unavailable.
Fluorine chloropyridine ester, English common name halauxifen-methyl. The Dow Agrosciences, LLC. was April 10 in 2014Day is obtained the former medicine of 93% fluorine chloropyridine ester and registers temporarily, and registration card number is LS20140138, the micro-poison of toxicity. Fluorine chloropyridine ester(Halauxifen-methyl) be a kind of pyridine carboxylic acid class herbicide. Fluorine chloropyridine ester is virtue in synthetic auxin class herbicideFirst product in the new chemical type of yl pyridines acid. It has simulated the effect of high dose plant growth regulator, causes specificThe overstimulation of auxin regulatory gene, disturb multiple growth courses of sensitive plant. Fluorine chloropyridine ester is for broad-leaved after budWeeds control. The herbicide that contains fluorine chloropyridine ester can be by preventing and kill off partial resistance weeds, for example clearvers, chickweed and cannabisWeeds carry out resistance management. In addition, fluorine chloropyridine ester can be by microorganism fast degradation in environment, for succeeding crop plantation is carriedFor larger flexibility. Amaranthus retroflexus, piemarker, yellow clever nutgrass flatsedge are had to good preventive effect.
Along with the development of Development of China's Urbanization, rural laborer transfers to cities and towns in a large number, and concentration of landholdings degree improves, wheatField weed control is more and more stronger to the dependence of herbicide. Efficiently, low toxicity, low-residual, succession crop harm is little is current weedingThe important directions of agent research and development.
The deficiency existing in actual application in order to make up above each single dose, the inventor furthers investigate,Unexpected discovery on a large amount of formula indoor screenings and the basis of field control effectiveness test, herbicidal composition of the present invention is necessarily being joinedThan composite in scope, weeds of wheat is had to good prevention effect, the preventive effect showing and activity level exceed each groupThe stack dividing, has unforeseeable synergistic function, has solved above two herbicides in herbicide spectrum, preventive effect and securityThe limitation existing, has reached the object that expands herbicide spectrum, raising preventive effect, raising security, can meet current agricultural to removingThe demand of grass agent.
Summary of the invention
The object of the invention is to the defect for current wheat paddock herbicide, a kind of broad weed-killing spectrum, herbicidal effect are providedGet well, use safety, be conducive to the herbicidal composition of the weeds of wheat comprehensive regulation.
The present invention has adopted following technical scheme:
The present invention relates to a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican.
Technical solution of the present invention, is characterized in that: the part by weight model of active ingredient fluorine chloropyridine ester and diflufenicanEnclose for 1:1.16 is to 1:100.
The another kind of preferred scheme of the present invention, is characterized in that: the weight of active ingredient fluorine chloropyridine ester and diflufenicanAmount proportion is that 1:3.1 is to 1:100.
The another kind of preferred scheme of the present invention, is characterized in that: the weight of active ingredient fluorine chloropyridine ester and diflufenicanAmount proportion is that 1:6.25 is to 1:100.
The another kind of preferred scheme of the present invention, is characterized in that: the weight of active ingredient fluorine chloropyridine ester and diflufenicanAmount ratio is 1:10 or 1:20,1:40,1:80.
The present invention relates to a kind of herbicidal composition preparation, this herbicidal composition preparation is aqueous suspension agent, missible oil, wettableProperty pulvis, granule or water dispersible granules, it is acceptable that herbicidal composition preparation is included on agricultural chemicals, and one or more are selected fromThe auxiliary agent of wetting agent, emulsifying agent, dispersant, thickener, antifreezing agent, disintegrant, binding agent, defoamer, carrier or filler.
The present invention relates to the purposes of described Herbicidal combinations in control weeds of wheat, described weeds of wheat isBroadcast the weeds such as ma wormwood artemisia, clearvers, shepherd's purse, Wang grass, bromegrass, amur foxtail, hard grass.
Herbicidal composition of the present invention, except two kinds of active ingredients, can also add carrier, emulsifying agent dispersant, wettingThe upper auxiliary agent allowing of the agricultural such as agent, disintegrant, thickener, adhesive, is processed into according to the method for well known to a person skilled in the artThe multiple formulation of the applicable agricultural uses such as water dispersible granules, missible oil, wettable powder, granule.
Emulsifying agent is the compound of one or more anion, non-ionic surface active agent, non-ionic surface active agent asFatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc., anion surfactantAs calcium dodecyl benzene sulfonate, neopelex etc., it can be one or more composition wherein. DisperseAgent can be selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, APES, DBSAOne or more in sodium, alkyl polyoxyethylene ether sulfonate or in alkylphenol-polyethenoxy base ether formaldehyde condensation products; Wetting agentCan be selected from naphthalene sulfonate, lauryl sodium sulfate, Teepol, AEO, Nonyl phenoOne or more in ether, sorbitan fatty acid ester polyoxyethylene ether, alkylsulfonate; Disintegrant can be selected from sulfuric acidAmmonium, urea, starch and derivative thereof, low-substituted hydroxypropyl cellulose, polyvinylpyrrolidone, sodium alginate, calcium chloride, chlorinationOne or more in sodium, magnesium chloride, aluminium chloride; Adhesive can be selected from hydroxyethylcellulose, soluble starch, poly-second twoAlcohol, methylcellulose, polycarboxylic acid and water-soluble high-molecular compound sodium carboxymethylcellulose, polyvinyl alcohol, paraffin, gypsum,One or more in hydroxypropyl methylcellulose, polyacrylamide; Carrier can be selected from white carbon, kaolin, bentonite, lightIn matter calcium carbonate, gypsum, attapulgite, urea, sucrose, diatomite, bentonite, ammonium sulfate, urea, potassium dihydrogen phosphate, potter's clayOne or more.
Beneficial effect:
1. expand the herbicide spectrum of knowing clearly. It is all better that fluorine chloropyridine ester is broadcast ma wormwood artemisia, clearvers, shepherd's purse effect to broad leaved weed, to standing grain thisSection's Za Cao Wang grass is invalid; Diflufenican is all better to broadcasting ma wormwood artemisia, shepherd's purse, Wang grass effect, and clearvers is also had to certain effect;Both all have broadcasting the wheat weeds in field such as ma wormwood artemisia, clearvers, shepherd's purse, Wang grass by complex preparation fluorine chloropyridine ester diflufenicanWell effect.
2. strengthened preventive effect. After two kinds of mixture of herbicides, interaction type is addition and has synergistic effect, preventive effectStrengthen, more effective than alone.
3. avoid use single herbicide to prevent and kill off and can cause Weed Resistance to occur fast, delayed sending out of herbicide resistanceRaw.
4. reduce dosage, reduce use cost, alleviate environmental pollution.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be further described, but the present invention should not be construed as and is confined to theseEmbodiment.
Embodiment 1 prepares fluorine chloropyridine ester (1g) and diflufenican (12.5g) aqueous suspension agent
The former medicine of 96% fluorine chloropyridine ester (halauxifen-methyl), the former medicine of 93% diflufenican (diflufenican) are joinedAqueous suspension agent processed. Take respectively quantitative fluorine chloropyridine ester, the former medicine of diflufenican with electronic balance, first add emulsifier specialAfter dissolving, then add the DMF of 2 times to dissolving completely, be diluted to 1% water with 0.1% the Tween-80 aqueous solutionSuspending agent is for subsequent use. Be prepared into active ingredient fluorine chloropyridine ester (1g) and the composite aqueous suspension agent of diflufenican (12.5g), can supply1ha uses.
Embodiment 2 prepares fluorine chloropyridine ester (1g) and the composite aqueous suspension agent of diflufenican (25g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 3 prepares fluorine chloropyridine ester (1g) and the composite aqueous suspension agent of diflufenican (50g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 4 prepares fluorine chloropyridine ester (1g) and the composite aqueous suspension agent of diflufenican (100g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester diflufenican and is prepared.
Embodiment 5 prepares fluorine chloropyridine ester (2g) and the composite aqueous suspension agent of diflufenican (12.5g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 6 prepares fluorine chloropyridine ester (2g) and the composite aqueous suspension agent of diflufenican (25g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 7 prepares fluorine chloropyridine ester (2g) and the composite aqueous suspension agent of diflufenican (50g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 8 prepares fluorine chloropyridine ester (2g) and the composite aqueous suspension agent of diflufenican (100g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 9 prepares fluorine chloropyridine ester (4g) and the composite aqueous suspension agent of diflufenican (12.5g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 10 prepares fluorine chloropyridine ester (4g) and the composite aqueous suspension agent of diflufenican (25g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 11 prepares fluorine chloropyridine ester (4g) and the composite aqueous suspension agent of diflufenican (50g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 12 prepares fluorine chloropyridine ester (4g) and the composite aqueous suspension agent of diflufenican (100g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 13 prepares fluorine chloropyridine ester (8g) and the composite aqueous suspension agent of diflufenican (12.5g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 14 prepares fluorine chloropyridine ester (8g) and the composite aqueous suspension agent of diflufenican (25g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 15 prepares fluorine chloropyridine ester (8g) and the composite aqueous suspension agent of diflufenican (50g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 16 prepares (fluorine chloropyridine ester 8g) and the composite aqueous suspension agent of diflufenican (100g)
Formulation method, with embodiment 1, takes the former medicine of fluorine chloropyridine ester and diflufenican and is prepared.
Embodiment 1750% fluorine chloropyridine ester diflufenican (halauxifen-methyl+diflufenican) EC(1:10 missible oil)
Take the quantitative former medicine of 96% fluorine chloropyridine ester (halauxifen-methyl), 93% pyrrole fluorine acyl grass according to 1:10 proportioningThe former medicine of amine (diflufenican), adds active component, emulsifying agent and auxiliary agent in mixing kettle successively in the ratio of formula, stirsEvenly, make 50% fluorine chloropyridine ester diflufenican missible oil
Embodiment 1850% fluorine chloropyridine ester diflufenican (halauxifen-methyl+diflufenican) EC(1:20 missible oil)
Preparation method is with implementing 17, and proportioning is 1:20.
Embodiment 1950% fluorine chloropyridine ester diflufenican (halauxifen-methyl+diflufenican) EC(1:40 missible oil)
Preparation method is with implementing 17, and proportioning is 1:40.
Embodiment 2050% fluorine chloropyridine ester diflufenican (halauxifen-methyl+diflufenican) EC(1:80 missible oil)
Preparation method is with implementing 17, and proportioning is 1:80.
Embodiment 21 laboratory experiments
1) experimental condition
For examination weeds for broadcast ma wormwood artemisia (Descurainiasophia (L.) webb), clearvers (GaliumaparinaL.),Amur foxtail (AlopecurusaequalisSobl..), Wang grass (Beckmanniasyzigachne (Steud.)Fernald). In the glasshouse that has heating installation, test the cultivation of material, temperature 15-25 DEG C, natural lighting. Will be quantitativelyBroadcast ma wormwood artemisia, clearvers, amur foxtail, Wang grass seed be sowed in the plastic tub that diameter is 9cm, weeds earthing 1-2mm, puts into dressHave in the enamel tray of water, allow water infiltrate gradually, wait water to be seeped into be transferred to phjytotron after soil table stand-by.
Within 1-2 days, can not watering after spray medicine, regularly with the moisturizing of bottom infiltrating irrigation mode, to keep soil moisture.
2) experimental design
Reagent agent is the former medicine of 96% fluorine chloropyridine ester (halauxifen-methyl), 93% diflufenican(diflufenican) aqueous suspension agent in former medicine and embodiment 1～16.
Dosage arranges, and fluorine chloropyridine ester establishes 1,2,4,8ga.i./ha, diflufenican establishes 12.5,25,50,100ga.i./ha, the former medicine of fluorine chloropyridine ester and diflufenican composite aqueous suspension agent using dosage is according in embodiment 1～16Numerical value.
Test Yu Wang grass, 21 heart stages of leaf of amur foxtail; Broadcast the ma wormwood artemisia 3-5 leaf phase; Clearvers 1-2 takes turns compound leaf phase cauline leaf even sprayingProcess.
Adopt ASS-4 type automatically to control sprinkling system, Fan spray head, in conjunction with sprinkler pressure, flow etc., by actual spray powderLong-pending (1.1m2) spray 50mL liquid (amounting to a mu water consumption 30kg), debug the speed of service, by equal pending plastic tubEven being arranged on spraying platform, even spraying processing. Atomisation pressure 0.4KPa, Fan spray head flow 800mL/min. By low amount extremelyA large amount sprays successively. Every processing repeats 4 times.
3) result of the test is calculated
Synergy type after mixed with the evaluation of Gowing method.
Gowing law theory preventive effect calculating formula is:
E0=X＋Y×（100－X）÷100
In formula, X, Y are respectively the actual measurement preventive effect value (%) of two single doses, and E is the mixed actual measurement preventive effect values (%) of different proportionings, E0ForTheoretical preventive effect value (%). Work as E-E0Be addition, E-E between-10～10 o'clock0> 10 o'clock be synergistic effect, E-E0<-10 o'clockFor antagonism.
Table 1 fluorine chloropyridine ester and diflufenican mixture synergy indoor measurement
As shown in Table 1, fluorine chloropyridine ester to wheat paddock broad leaved weed broadcast ma wormwood artemisia, clearvers has good effect, assorted to grass familyGrass amur foxtail, Wang grass is invalid; Diflufenican to broadcasting ma wormwood artemisia, amur foxtail, Wang grass all has good effect, to clearvers effect slightlyBe worse than other weeds.
As shown in Table 1, fluorine chloropyridine ester and diflufenican are composite rear to broadcasting the increase of ma wormwood artemisia effect, and E-E0 value, for just, is shownIt is now addition. When part by weight is 1:12.5, E-E0 value is up to 3.3, be secondly part by weight while being 1:25 E-E0 value be3.1, be again part by weight while being 1:3.1 E-E0 value be 2.8. Part by weight at 1:1.6 to E-E0 value within the scope of 1:100 for justShow as addition, part by weight scope is that 1:3.1 is larger to E-E0 value between 1:100, and part by weight scope is 1:6.25Very large to E-E0 value between 1:100.
As shown in Table 1, fluorine chloropyridine ester and diflufenican are composite rear to the increase of clearvers effect, and E-E0 value, for just, is shownBe now addition or synergistic effect. When part by weight is 1:6.25, E-E0 value is up to 10.1, is secondly that part by weight is 1:Within 12.5 o'clock, E-E0 value is 6, be again part by weight while being 1:3.1 E-E0 value be 4. Part by weight arrives within the scope of 1:100 at 1:1.6E-E0 value is for just showing as addition or synergistic effect, and part by weight scope is that 1:3.1 is larger to E-E0 value between 1:100,Part by weight scope is that 1:6.25 is very large to E-E0 value between 1:100.
As shown in Table 1, fluorine chloropyridine ester and diflufenican are composite rear to the increase of amur foxtail effect, and E-E0 value, for just, is shownIt is now addition. When part by weight is 1:12.5, E-E0 value is up to 9.2, be secondly part by weight while being 1:25 E-E0 value be5.5, be again part by weight while being 1:6.25 E-E0 value be 5.4. Part by weight at 1:1.6 to E-E0 value within the scope of 1:100 isJust showing as addition, part by weight scope is that 1:3.1 is larger to E-E0 value between 1:100, and part by weight scope is 1:Between 6.25 to 1:100, E-E0 value is very large. .
As shown in Table 1, the composite Hou Dui of fluorine chloropyridine ester and diflufenican Wang grass effect increases, and E-E0 value, for just, showsFor addition. When part by weight is 1:6.25, E-E0 value is up to 7.5, be secondly part by weight while being 1:12.5 E-E0 value be5.6, be again part by weight while being 1:25 E-E0 value be 5.1. Part by weight at 1:1.6 to E-E0 value within the scope of 1:100 for justShow as addition, part by weight scope is that 1:3.1 is larger to E-E0 value between 1:100, and part by weight scope is 1:6.25Very large to E-E0 value between 1:100.
In sum, the composite rear mutual supplement with each other's advantages of fluorine chloropyridine ester and diflufenican, to broadcast ma wormwood artemisia, clearvers, amur foxtail,Wang grass all has good effect, and composite effect belongs to addition or synergistic effect.
Embodiment 22 field control effects are measured
1. experimental condition
1) selection of crop and cultivar
Wheat breed is Jimai sowing on October 9th, 22,2014, sows 15 kilograms for every mu, and line-spacing is 18cm.
2) selection of subjects weeds
Broadcast ma wormwood artemisia (Descurainiasophia (L.) webb), clearvers (GaliumaparinaL.), shepherd's purse(Capsellabursa-pastoris), Wang grass (Beckmanniasyzigachne (Steud.) Fernald) etc.
3) cultivation condition
Test wheat paddock is located at the Xia Jia of the office village, Xu Jia building, Tai’an, Shandong Province to carry out, 50 mu of testing ground areas, crop aroundFor wheat. Be experimental field loam, the content of organic matter 1.8%, pH value 7.15, uses 50 kilograms of composite fertilizers of formula fertilizer when wheat cultivation,Jointing stage is executed 10 kilograms of urea. Soil moisture content RH(% when dispenser) be 50 left and right.
Test physical features is smooth, and management is consistent, and it is better that fertility and water water condition. Experimental field water 2 times. Before surviving the winter, water the water of surviving the winter(at the beginning of 11 months), irrigate in grouting time after wheat fallen flowers (mid-May).
Stubble maize planting experimental field, herbicide used is mesotrione and atrazine.
2. experimental design
1) test medicine
7.5g/L fluorine chloropyridine ester (halauxifen-methyl) EC, 50% diflufenican (diflufenican) WDG, 50%Fluorine chloropyridine ester diflufenican (halauxifen-methyl+diflufenican) EC(fluorine chloropyridine ester: pyrrole fluorine acyl grassAmine is respectively 1:10,1:20,1:40,1:80), i.e. embodiment 17-20 preparation.
2) using method
Spraying apparatus is noncomparable senior knapsack sprayer, tests each processing and is watered 450 liters of even spraying by per hectare. Yu MaiThe cauline leaf even spraying processing of 2～5 leaf phase of field annual grassy weeds.
3) spraying time and number of times
Tested on March 19th, 2015 and carry out, dispenser once altogether. When dispenser, wheat, in period of seedling establishment, grows fine; Weeds in field2～5 leaf phases, to broadcast ma wormwood artemisia, clearvers, shepherd's purse, Wang grass as main.
3. drug effect computational methods
Computing formula:
Prevention effect (%)=(weeds stubble number after the number of weeds-treatment region medicine of check plot) number of weeds × 100, ÷ check plot
Fresh weight preventive effect (%)=(the fresh careless weight of the fresh careless weight-treatment region in blank district) fresh careless weight × 100, ÷ blank district
Table 250% fluorine chloropyridine ester diflufenican EC is applied to wheat paddock field effect measuring (investigation in 30 days after dispenser)
As shown in Table 2, it is all better that 7.5g/L fluorine chloropyridine ester EC broadcasts ma wormwood artemisia, clearvers, shepherd's purse effect to broad leaved weed, to standing grain thisSection's Za Cao Wang grass is invalid; 50% diflufenican WDG is all better to broadcasting ma wormwood artemisia, shepherd's purse, Wang grass effect, and clearvers is also had necessarilyEffect; The each proportioning of both complex preparation 50% fluorine chloropyridine ester diflufenican EC is to broadcasting ma wormwood artemisia, clearvers, shepherd's purse, Wang grassAll there is good effect.
50% fluorine chloropyridine ester diflufenican EC (1:20) preventive effect is best, and total strain preventive effect reaches 95.7%, fresh weight preventive effectReach 97.2%. , be secondly 50% fluorine chloropyridine ester diflufenican EC (1:40).
By range estimation, in field experiment, do not observe herbicide damage 50% fluorine chloropyridine ester diflufenican EC occursTo wheat safety.
With wherein a kind of active ingredient comparison of independent use, the composite herbicide spectrum that expanded of the present invention, a dispenser can be controlledWeeds in fabrication whole growth period, not only herbicidal effect is remarkable, and environmentally friendly, without impact, right on second stubble cropThe pollution of environment is little, to people, animal, birds and beneficial organism safety, is conducive to keep ecological balance.
The above is only the preferred embodiment of the present invention, it should be pointed out that the ordinary skill people for the artMember, under the premise without departing from the principles of the invention, can also make some improvement and combination, and these improvement and combination also shouldBe considered as protection scope of the present invention.
Claims (6)
1. a herbicidal composition that contains fluorine chloropyridine ester and diflufenican, is characterized in that: active ingredient fluorine chlorine pyrroleThe part by weight scope of pyridine ester and diflufenican is that 1:1.6 is to 1:100.
2. a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican according to claim 1, its featureBe: the part by weight scope of active ingredient fluorine chloropyridine ester and diflufenican is that 1:3.1 is to 1:100.
3. a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican according to claim 2, its featureBe: the part by weight scope of active ingredient fluorine chloropyridine ester and diflufenican is that 1:6.25 is to 1:100.
4. a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican according to claim 3, its featureBe: the part by weight of active ingredient fluorine chloropyridine ester and diflufenican is 1:10 or 1:20,1:40,1:80.
5. according to a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican described in claim 1-4, its spyLevy and be, described herbicidal composition preparation is aqueous suspension agent, missible oil, wettable powder, granule or water dispersible granules, removesGrass agent composite preparation is included on agricultural chemicals acceptable, one or more be selected from wetting agent, emulsifying agent, dispersant, thickener,The auxiliary agent of antifreezing agent, disintegrant, binding agent, defoamer, carrier or filler.
6. a kind of herbicidal composition that contains fluorine chloropyridine ester and diflufenican according to claim 5, its featureBe, the purposes of described Herbicidal combinations preparation in control weeds of wheat, described weeds of wheat is to broadcast ma wormwood artemisia, pigThe weeds such as calamity calamity, shepherd's purse, Wang grass, bromegrass, amur foxtail, hard grass.
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| CN201610145994.5A CN105580810A (en) | 2016-03-15 | 2016-03-15 | Herbicide composition containing halauxifen-methyl and diflufenican |
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| CN201610145994.5A CN105580810A (en) | 2016-03-15 | 2016-03-15 | Herbicide composition containing halauxifen-methyl and diflufenican |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258919A (en) * | 2021-12-31 | 2022-04-01 | 王剑英 | Weeding composition |
| EP3987932A1 (en) * | 2020-10-26 | 2022-04-27 | Adama Agan Ltd. | Herbicidal combinations |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102326551A (en) * | 2011-07-11 | 2012-01-25 | 陕西美邦农药有限公司 | Weeding composition containing diflufenican |
| CN102342277A (en) * | 2011-07-25 | 2012-02-08 | 陕西美邦农药有限公司 | Herbicidal composition containing diflufenican and bromoxynil |
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2016
- 2016-03-15 CN CN201610145994.5A patent/CN105580810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102326551A (en) * | 2011-07-11 | 2012-01-25 | 陕西美邦农药有限公司 | Weeding composition containing diflufenican |
| CN102342277A (en) * | 2011-07-25 | 2012-02-08 | 陕西美邦农药有限公司 | Herbicidal composition containing diflufenican and bromoxynil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3987932A1 (en) * | 2020-10-26 | 2022-04-27 | Adama Agan Ltd. | Herbicidal combinations |
| CN114258919A (en) * | 2021-12-31 | 2022-04-01 | 王剑英 | Weeding composition |
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