CN105580808B - A kind of herbicidal composition containing fluorine chloropyridine ester and topramezone - Google Patents
A kind of herbicidal composition containing fluorine chloropyridine ester and topramezone Download PDFInfo
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- CN105580808B CN105580808B CN201610145965.9A CN201610145965A CN105580808B CN 105580808 B CN105580808 B CN 105580808B CN 201610145965 A CN201610145965 A CN 201610145965A CN 105580808 B CN105580808 B CN 105580808B
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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
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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
- A01N43/80—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 one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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Abstract
The invention belongs to pesticide herbicide technical fields, and in particular to be suitable for a kind of herbicidal composition containing fluorine chloropyridine ester and topramezone of corn field.Active ingredient fluorine chloropyridine ester and the weight ratio of topramezone ranging from 1：0.6 to 1：40.The present invention expands herbicide controlling spectrum, enhances preventive effect, and avoiding to prevent and kill off using single herbicide can cause Weed Resistance quickly to occur, and delays the generation of herbicide resistance, reduces dosage, reduces use cost, mitigates environmental pollution.
Description
Technical field
The invention belongs to pesticide herbicide technical fields, and in particular to one kind suitable for corn field contains fluorine chloropyridine ester
With the herbicidal composition of topramezone.
Background technology
Corn is one of China's Three major grain crops, while being also important feed and the raw material of industry.China's jade in 2004
Rice cultivated area is up to 25,580,000 hm2, the 2nd, the world is occupied, but per unit area yield is 5154kg/hm2, the U.S. Jin Zhan, Israel, New Zealand etc.
50% or so of country.Weed infestation be influence crop yield one of principal element, the annual crop smothering area of China's corn field there are about
6670000 hm2, the underproduction up to 10% or more, even No kernels or seeds are gathered, as in a year of scarcity for the serious field of crop smothering [Wei Shouhui etc., plant protection journal, the 33rd
Rolled up for the 2nd phase].
The 1980s, the survey showed that, and corn field weed group is mainly by lady's-grass, barnyard grass, lamb's-quarters, Amaranthus retroflexus, ox
The weeds such as muscle grass form.Under the long term of chemical herbicide, very big change has occurred in structure of community in recent years, and the northeast spring is beautiful
The extent of injury of the weeds such as rice area dayflower, sowthistle, meadow pine constantly rises, and gradually develops into field main weeds, and North China
Summer corn area difficulty cut weeds the dominance of acalypha copperleaf, piemarker in field significantly improve [Wei Shouhui etc., plant protection journal, the 33rd
Rolled up for the 2nd phase].The weeds that Huang-Huai-Hai mainly occurs have piemarker（Abutilon theophrasti M.）, purslane（Portulaca
oleracea L.）, eleusine indica（Eleusine indica L.）, barnyard grass（Echinochloa oryzicola V.）.In the Yellow River and Huai He River
Extra large summer corn crop smothering occurs seriously, and the 82%~96% of the areas crop smothering occurring area Zhan Gai cultivated area, wherein the medium above harm
Area is up to 64~66%.
Herbicide is the common measure of current control of weeds, has weight to promoting corn yield to improve and saving planting cost
The effect wanted.But long-term, the large scale application of herbicide, there are Weed Resistance, populations to drill for farmland weed chemical control
It is on the rise for drug injury problem, seriously affects the safety of the high yield and good harvest and succession crop of corn.The variation of field grass phase
Need the dosage for increasing conventional herbicide kind that could maintain certain preventive effect, but with the increasing of herbicide dosage, to environment
The pollution getting worse of generation, and Agricultural biodiversity can be destroyed and lead to generation [Wei Shouhui etc., the plant of herbicide resistance
Object protects journal, the 2nd phase of volume 33].
Topramezone is first benzene methyl pyrazolone herbicide, is p-hydroxybenzene pyruvic acid (HPP) ester dual oxide enzyme（4-
HPPD）Inhibitor, to glyphosate tolerant, triazines, acetolactate synthestase（ALS）Inhibitor and acetyl-CoA carboxylase
（ACCase）The weeds of inhibitor have good preventive effect, are wide spectrum herbicide after seedling, and it is annual effectively to prevent and kill off corn field
Grass family and broad leaved weed, high dose have sedge weed certain inhibiting effect.It is found by BASF AG and is developed.Benzene
The general entitled topramezone of ISO of azoles humulone, chemical name：4-[3-（4,5- dihydro-isoxazole -3- bases）- 2- methyl -4-
Methyl sulphonyl] -1- methyl -5- hydroxyl -1H- pyrazoles.Test code number：BAS670, BAS67000H, CAS registration numbers：210631-
68-8.Cauline leaf process is absorbed by root and seedling, leaf after seedling, in plant Xiang Ding, separate living tissue is transmitted to base, inhibit to hydroxyl
Base phenylacetone acid esters dual oxide enzyme（4-HPPD）, inhibit the biosynthesis of carotenoid indirectly, interfere the synthesis of chloroplaset
And function leads to the susceptible weeds albefaction of germination, the tissue necrosis of chlorosis due to the oxidative degradation of chlorophyll.Topramezone can
Prevent grass family and broad leaved weed.Under the dosage of 63g/ha, the rate of preventing and kill off of piemarker, wild amaranth, Siberian cocklebur, faber bristlegrass herb is reached
100%, to corn without poisoning.
Fluorine chloropyridine ester, English common name halauxifen-methyl.The Dow Agrosciences, LLC. was April 10 in 2014
Day obtains 93% fluorine chloropyridine ester active compound and registers temporarily, registration card number LS20140138, the micro- poison of toxicity.Fluorine chloropyridine ester
(Halauxifen-methyl) it is a kind of pyridine carboxylic acid class herbicide.Fluorine chloropyridine ester is fragrant in synthetic auxin class herbicide
First product in the new chemical type of yl pyridines acid.It simulates the effect of high dose plant growth regulator, causes specific
Auxin adjust gene overstimulation, interfere multiple growth courses of sensitive plant.Fluorine chloropyridine ester is used for broad-leaved after bud
Weeds control.Herbicide containing fluorine chloropyridine ester can be by preventing and kill off partial resistance weeds, such as clearvers, chickweed and cannabis
Weeds carry out resistance management.In addition, fluorine chloropyridine ester can be carried by microorganism fast degradation in the environment for succeeding crop plantation
For larger flexibility.There is preferable preventive effect to Amaranthus retroflexus, piemarker, yellow clever nutgrass flatsedge.
With the development of Development of China's Urbanization, rural laborer is largely transferred to cities and towns, and concentration of landholdings degree improves, corn
Field weed prevention is more and more stronger to the dependence of herbicide.Efficiently, low toxicity, low-residual, small succession crop harm are current weedings
The important directions of agent research and development.
Existing insufficient in actual application in order to make up above each single dose, the present inventor furthers investigate,
It is had been surprisingly found that on the basis of a large amount of formula indoor screening and field control effectiveness test, herbicidal composition of the invention is centainly being matched
Than being compounded in range, there is excellent control effect, the preventive effect shown and activity level to exceed each group corn field weed
The superposition divided has unexpected synergistic function, solves above two herbicide in herbicide controlling spectrum, preventive effect and safety
Existing limitation has achieved the purpose that expand herbicide controlling spectrum, has improved preventive effect, improves safety, can meet current agricultural to removing
The demand of careless agent.
Invention content
It is an object of the invention to the defect for current corn field herbicide, a kind of broad weed-killing spectrum, herbicidal effect are provided
It is good, safe to use, be conducive to the herbicidal composition of corn field weed comprehensive treatment.
Present invention employs following technical solutions：
The present invention relates to a kind of herbicidal composition containing fluorine chloropyridine ester and topramezone.
Technical solution of the present invention, it is characterised in that：The weight ratio range of active ingredient fluorine chloropyridine ester and topramezone
It is 1:0.6 to 1:40.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and topramezone
Proportional region is 1:1.25 to 1:20.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and topramezone
Proportional region is 1:5 to 1:10.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and topramezone
Ratio is 1:5 or 1:7.5、1:10.
The present invention relates to a kind of herbicidal composition preparation, which is missible oil, aqueous suspension agent, oil hang
The dosage forms pesticide-acceptable such as floating agent, wettable powder, granule, missible oil or water dispersible granules, herbicidal composition preparation
Be included in it is pesticide-acceptable, it is one or more selected from wetting agent, emulsifier, dispersant, thickener, antifreezing agent, disintegrant,
The auxiliary agent of binder, antifoaming agent, carrier or filler.
The present invention relates to purposes of the Herbicidal combinations in preventing corn field weed, the corn field weed is
The weeds such as Amaranthus retroflexus, purslane, piemarker, acalypha copperleaf, lady's-grass, eleusine indica, barnyard grass, green bristlegrass, setariafaberi, yellow clever nutgrass flatsedge.
Herbicidal composition of the present invention can also add carrier, emulsifier, dispersant, wetting in addition to two kinds of active ingredient
The auxiliary agent that agent, disintegrant, thickener, adhesive etc. agriculturally allow, according to well known to a person skilled in the art methods to be processed into
A variety of dosage forms of the suitable agricultural use such as water dispersible granules, oil-suspending agent, wettable powder, granule.
Emulsifier is the compound of one or more anion, nonionic surfactant, and nonionic surfactant is such as
Fatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc., anion surfactant
Such as calcium dodecyl benzene sulfonate, neopelex can be one such or two or more composition.Dispersion
Agent can be selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, alkyl phenol polyoxyethylene ether, dodecyl benzene sulfonic acid
It is one or more in sodium, alkyl polyoxyethylene ether sulfonate or in alkylphenol-polyethenoxy base ether formaldehyde condensation products；Wetting agent
Naphthalene sulfonate, lauryl sodium sulfate, Teepol, fatty alcohol polyoxyethylene ether, Nonyl pheno can be selected from
It is one or more in ether, sorbitan fatty acid ester polyoxyethylene ether, alkylsulfonate；Disintegrant can be selected from sulfuric acid
Ammonium, urea, starch and its derivative, low-substituted hydroxypropyl cellulose, polyvinylpyrrolidone, sodium alginate, calcium chloride, chlorination
It is one or more in sodium, magnesium chloride, aluminium chloride；Adhesive can be selected from hydroxyethyl cellulose, soluble starch, poly- second two
Alcohol, methylcellulose, polycarboxylic acid and water-soluble high-molecular compound sodium carboxymethylcellulose, polyvinyl alcohol, paraffin, gypsum,
It is one or more in hydroxypropyl methyl cellulose, polyacrylamide；Carrier can be selected from white carbon, kaolin, bentonite, light
In matter calcium carbonate, gypsum, attapulgite, urea, sucrose, diatomite, bentonite, ammonium sulfate, urea, potassium dihydrogen phosphate, clay
It is one or more.
Advantageous effect：
1. having expanded herbicide controlling spectrum.Fluorine chloropyridine ester has good effect to corn field weed piemarker, also has to purslane
Certain preventive effect is invalid to gramineous weeds sativa, barnyard grass；Topramezone has good effect to purslane, barnyard grass, to piemarker
Fiber crops, lady's-grass effect are also preferable.Fluorine chloropyridine ester has complementary advantages after being compounded with topramezone, to piemarker, purslane, lady's-grass, barnyard grass
Equal corns weeds in field has good effect,
2. enhancing preventive effect.Interaction type is addition and has synergistic effect, preventive effect after two kinds of mixture of herbicides
Enhancing is better than effect is applied alone.
Weed Resistance can be caused quickly to occur 3. avoiding and being prevented and kill off using single herbicide, delay the hair of herbicide resistance
It is raw.
4. reducing dosage, use cost is reduced, mitigates environmental pollution.
Specific implementation mode
The present invention will be further described With reference to embodiment, but the present invention should not be interpreted as limited to these
Embodiment.
Embodiment 1 prepares fluorine chloropyridine ester（1g）And topramezone（5g）Aqueous suspension agent
96% fluorine chloropyridine ester（halauxifen-methyl）Active compound, 91% topramezone（topramezone）Active compound is matched
Aqueous suspension agent processed.It weighs quantitative fluorine chloropyridine ester, topramezone active compound respectively with electronic balance, it is molten that emulsifier special is first added
It is outstanding to be diluted to 1% water to being completely dissolved with 0.1% Tween-80 aqueous solution for Xie Hou, the n,N-Dimethylformamide for adding 2 times
Floating agent is spare.It is prepared into active ingredient fluorine chloropyridine ester（1g）And topramezone（5g）Compound aqueous suspension agent.
Embodiment 2 prepares fluorine chloropyridine ester（1g）And topramezone（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 3 prepares fluorine chloropyridine ester（1g）And topramezone（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 4 prepares fluorine chloropyridine ester（1g）And topramezone（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester topramezone active compound and is prepared with embodiment 1.
Embodiment 5 prepares fluorine chloropyridine ester（2g）And topramezone（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 6 prepares fluorine chloropyridine ester（2g）And topramezone（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 7 prepares fluorine chloropyridine ester（2g）And topramezone（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 8 prepares fluorine chloropyridine ester（2g）And topramezone（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 9 prepares fluorine chloropyridine ester（4g）And topramezone（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 10 prepares fluorine chloropyridine ester（4g）And topramezone（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 11 prepares fluorine chloropyridine ester（4g）And topramezone（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 12 prepares fluorine chloropyridine ester（4g）And topramezone（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 13 prepares fluorine chloropyridine ester（8g）And topramezone（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 14 prepares fluorine chloropyridine ester（8g）And topramezone（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
Embodiment 15 prepares fluorine chloropyridine ester（8g）And topramezone（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
It is prepared by embodiment 16（Fluorine chloropyridine ester 8g）And topramezone（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by topramezone active compound with embodiment 1.
17 15% fluorine chloropyridine ester topramezone of embodiment（halauxifen-methyl +topramezone）SC（1:
5 suspending agents）
According to 1:5 proportionings weigh quantitative fluorine chloropyridine ester and topramezone active compound crushes sieving, add dispersant,
Then thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
18 15% fluorine chloropyridine ester topramezone of embodiment（halauxifen-methyl +topramezone）SC（1:
7.5 suspending agent）
According to 1:7.5 proportionings weigh quantitative fluorine chloropyridine ester and topramezone active compound crushes sieving, addition dispersion
Then agent, thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
19 15% fluorine chloropyridine ester topramezone of embodiment（halauxifen-methyl +topramezone）SC（1:
10 suspending agents）
According to 1:10 proportionings weigh quantitative fluorine chloropyridine ester and topramezone active compound crushes sieving, addition dispersion
Then agent, thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
20 laboratory experiment of embodiment
1）Experimental condition
It is piemarker for examination weeds（Abutilon theophrasti M.）, purslane（Portulaca oleracea
L.）, lady's-grass（Digitaria sanguinalis (L.) Scop.）, barnyard grass（Echinochloa oryzicola V.）.
The culture of experiment examination material, 25-35 DEG C of temperature, natural lighting are carried out in glasshouse.Quantitative grass seed is sowed at a diameter of 9
In the plastic tub of cm, weeds earthing 1-2 mm are put into the enamel tray equipped with water, water are allowed gradually to penetrate into, after waiting water to be seeped into native table
It is for use to be transferred to glasshouse.
In addition to 1-2 days after spray cannot water, the periodically moisturizing in a manner of the infiltrating irrigation of bottom, to keep soil moisture.
2）Experimental design
Reagent agent is 96% fluorine chloropyridine ester（halauxifen-methyl）Active compound, 91% topramezone
（topramezone）Aqueous suspension agent in active compound and embodiment 1~16.
Dosage is arranged, and fluorine chloropyridine ester sets 1,2,4,8 ga.i./ha, topramezone sets 5,10,20,40ga.i./ha, fluorine
Chloropyridine ester and topramezone active compound compound aqueous suspension agent dosage according to the numerical value in embodiment 1~16.
It is tested in lady's-grass, 1 heart stage of 2 leaf of barnyard grass Tang；The piemarker 2-5 leaf phases；The processing of purslane 4-6 leaf phase cauline leaf even sprayings.
Sprinkling system, Fan spray head, in conjunction with sprinkler pressure, flow etc., by practical spray face are automatically controlled using ASS-4 types
Product（1.1 m2）Spray 50 mL liquids（Equivalent 30 kg of mu water consumption）, the speed of service has been debugged, pending plastic tub is equal
It is even to be arranged on spraying platform, even spraying processing.0.4 KPa of atomisation pressure, Fan spray head flow 800mL/min.Extremely by low amounts
A large amount sprays successively.Often processing is repeated 4 times.
3）Test result calculates
With synergy type of the Gowing methods evaluation after mixed.
Gowing law theory preventive effect calculating formulas are：
E0=X+Y ×（100-X）÷100
X, Y are respectively the anti-valid value of actual measurement of two single doses in formula（%）, E is the anti-valid value of actual measurement that different ratio is used with（%）,
E0For theoretical anti-valid value（%）.As E- E0Between -10~10 when for addition, E- E0>It is synergistic effect when 10, E- E0<-
It is antagonism when 10.
1 fluorine chloropyridine ester of table and topramezone mixture synergy indoor measurement
As shown in Table 1, fluorine chloropyridine ester has good effect to corn field weed piemarker, also has to purslane certain anti-
Effect is invalid to gramineous weeds sativa, barnyard grass；Topramezone has good effect to purslane, barnyard grass, to piemarker, lady's-grass
Effect is also preferable.
As shown in Table 1, piemarker effect is increased after fluorine chloropyridine ester and topramezone compounding, E-E0 values are just, to show as
Addition.Weight ratio is 1：E-E0 values are up to 5.1 when 10, and followed by weight ratio is 1：E-E0 values are 5 when 5, again
Be weight ratio be 1:E-E0 values are 4.5 when 2.5.Weight ratio is 1:0.6 to 1：E-E0 values are just to show as adding in 40 ranges
At effect, in weight ratio range 1:1.25 to 1:E-E0 values are larger between 20, in weight ratio range 1:5 to 1:Between 10
E-E0 values are very big.
As shown in Table 1, purslane effect is increased after fluorine chloropyridine ester and topramezone compounding, E-E0 values are just performance
For addition or synergistic effect.Weight ratio is 1：E-E0 values are up to 10.2 when 5, and followed by weight ratio is 1：E- when 10
E0 values be 10.1, be again weight ratio be 1：E-E0 values are 9.1 when 2.5.Weight ratio is 1:0.6 to 1:E-E0 in 40 ranges
Value is just to show as addition or synergistic effect, and weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, weight
Proportional region is 1:5 to 1:E-E0 values are very big between 10.
As shown in Table 1, lady's-grass effect is increased after fluorine chloropyridine ester and topramezone compounding, E-E0 values are just, to show as
Addition or synergy.Weight ratio is 1：E-E0 values are up to 10.1 when 10, and followed by weight ratio is 1:E-E0 values are when 5
10, be again weight ratio be 1:E-E0 values are 9.6 when 2.5.Weight ratio is 1:0.6 to 1:E-E0 values are positive table in 40 ranges
It is now addition, weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is 1:5 to 1:10
Between E-E0 values it is very big.
As shown in Table 1, barnyard grass effect is increased after fluorine chloropyridine ester and topramezone compounding, E-E0 values are just, to show as
Addition.Weight ratio is 1：E-E0 values are up to 5.8 when 5, and followed by weight ratio is 1：E-E0 values are 5.2 when 10, then
It is secondary be weight ratio be 1：E-E0 values are 5 when 1.25.Weight ratio is 1:0.6 to 1:E-E0 values are just to show as adding in 40 ranges
At effect, weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is 1:5 to 1:E- between 10
E0 values are very big.
In conclusion fluorine chloropyridine ester has complementary advantages after being compounded with topramezone, it is equal to piemarker, purslane, lady's-grass, barnyard grass
There are good effect, compounding effect to belong to addition or synergistic effect.
21 field control effect of embodiment measures
1. experimental condition
1）The selection of crop and cultivar
Corn variety is beautiful jade 9 and iron 900, and interlacing intersects plantation, plantation on June 17th, 2015, corn seeding row
Away from 75cm, spacing in the rows 21cm, application rate adds up to about 3.5kg.
2）The selection of subjects weeds
Amaranthus retroflexus（Abutilon theophrasti M.）, purslane（Portulaca oleracea L.）, lady's-grass
（Digitaria sanguinalis (L.) Scop.）, barnyard grass（Echinochloa oryzicola V.）Deng.
3）Cultivation condition
Experiment corn field is located at the progress of the Dezhou City Shandong Province towns the Jiao Miao villages Liu Nan of the townshiies Liu Qiao.Experimental field 50 mu of corn area,
Experimental field periphery crop is also corn.It is experimental field loam, middle fertility, pH value 7.5, the content of organic matter 1.7%.Corn seeding
Apply U.S.'s methyl diammonium and the total 50kg of composite fertilizer of the U.S. per acre simultaneously（Two kinds of fertilizer press 1：1.5 using）, in addition at the beginning of August per acre
Using urea 30kg.
Milpa topography is flat, and broad irrigation on June 18 is primary after corn seeding, and July 5, full field watering was primary.
Experimental field preceding stubble plants wheat, and herbicide used is liked for wheat.
2. experimental design
1）Test medicine
7.5g/L fluorine chloropyridine esters（halauxifen-methyl）EC, 30% topramezone（topramezone）SC, 15%
Fluorine chloropyridine ester topramezone（halauxifen-methyl +topramezone）SC（Fluorine chloropyridine ester：Topramezone is distinguished
It is 1：5、1:7.5、1:10）, i.e. embodiment 17-20 preparations.
2）Application method
Spraying instrument is noncomparable advanced knapsack sprayer, tests each processing and is watered 450 liters of even sprayings by per hectare.
In the processing of 2~5 leaf phase of corn field annual grassy weeds cauline leaf even spraying.
3）Spraying time and number
It tests and is carried out on July 4th, 2015, dispenser is primary altogether.The corn 4-5 leaf phases, grow fine when dispenser；Weeds 2-5
Ye Qi, based on Amaranthus retroflexus, purslane, lady's-grass, barnyard grass.
3. drug effect computational methods
Calculation formula：
Control effect (%)=(weeds stubble number after the check plot number of weeds-treatment region medicine) check plots ÷ number of weeds ×
100
Fresh weight preventive effect (%)=(blank district fresh grass weight-treatment region fresh grass weight) ÷ blank district fresh grass weight
×100
2 15% fluorine chloropyridine ester topramezone SC of table is applied to corn field field efficacy and measures and (investigate within 30 days after dispenser)
As shown in Table 2,7.5g/L fluorine chloropyridine ester EC is excellent to Amaranthus retroflexus effect, has certain preventive effect to purslane, to standing grain
Undergraduate course weeds lady's-grass, barnyard grass are invalid；30% topramezone SC is excellent to Amaranthus retroflexus, barnyard grass effect, to purslane, lady's-grass effect
Preferably；15% fluorine chloropyridine ester topramezone SC of the two complex preparation, which respectively matches comparison Amaranthus retroflexus, purslane, lady's-grass, barnyard grass, to be had
Good effect.15% fluorine chloropyridine ester topramezone SC (1:10) preventive effect is best, and total strain preventive effect reaches 96%, fresh weight preventive effect
Reach 98.3%., followed by 15% fluorine chloropyridine ester topramezone SC (1:7.5).
By range estimation, herbicide damage, 15% fluorine chloropyridine ester topramezone SC is not observed in field experiment
To corn safety.
Compared with one of which active ingredient is used alone, present invention compounding expands herbicide controlling spectrum, and a dispenser can be controlled
Weeds in fabrication entire growth period, not only herbicidal effect is notable, but also environmentally friendly, right on second stubble crop without influence
The pollution of environment is small, to people, animal, birds and beneficial organism safety, is conducive to keep ecological balance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement and combination can also be made, these are improved and combination is also answered
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of herbicidal composition containing fluorine chloropyridine ester and topramezone, it is characterised in that：Active ingredient fluorine chloropyridine
Ester and the weight ratio of topramezone are 1:5 or 1:7.5、1:10.
2. the herbicidal composition according to claim 1 containing fluorine chloropyridine ester and topramezone, which is characterized in that institute
The dosage form for stating herbicidal composition is missible oil, aqueous suspension agent, oil-suspending agent, wettable powder, granule or water dispersible granules, is removed
Be included in careless agent composition it is pesticide-acceptable, it is one or more selected from wetting agent, it is emulsifier, dispersant, thickener, anti-
Freeze agent, disintegrant, binder, antifoaming agent, carrier or filler auxiliary agent.
3. the herbicidal composition according to claim 2 containing fluorine chloropyridine ester and topramezone is miscellaneous in prevention corn field
Purposes in grass, the corn field weed are Amaranthus retroflexus, purslane, piemarker, acalypha copperleaf, lady's-grass, eleusine indica, barnyard grass, dog tail
Grass, setariafaberi, yellow clever nutgrass flatsedge.
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| CN201610145965.9A CN105580808B (en) | 2016-03-15 | 2016-03-15 | A kind of herbicidal composition containing fluorine chloropyridine ester and topramezone |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2771375C2 (en) * | 2017-08-10 | 2022-05-04 | ДАУ АГРОСАЙЕНСИЗ ЭлЭлСи | Herbicide compositions containing 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or its derivative and tembotrione and/or topramezone |
| CN107980783A (en) * | 2017-12-08 | 2018-05-04 | 北京科发伟业农药技术中心 | The Herbicidal combinations of flumetsulam containing benzene and fluorine chloropyridine ester |
| CN115363036A (en) * | 2021-05-20 | 2022-11-22 | 四川利尔作物科学有限公司 | Herbicide composition containing topramezone and application thereof |
| CN115720900B (en) * | 2022-12-30 | 2024-08-06 | 农心作物科技股份有限公司 | Ternary weeding composition containing topramezone |
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| 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 |
| CN103503884A (en) * | 2013-10-12 | 2014-01-15 | 河北省农林科学院粮油作物研究所 | Topramezone*clopyralid composite corn field herbicide |
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| 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 |
| CN103503884A (en) * | 2013-10-12 | 2014-01-15 | 河北省农林科学院粮油作物研究所 | Topramezone*clopyralid composite corn field herbicide |
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