CN108990996A - A kind of herbicidal composition containing sulfentrazone and florasulam - Google Patents
A kind of herbicidal composition containing sulfentrazone and florasulam Download PDFInfo
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- CN108990996A CN108990996A CN201811111596.7A CN201811111596A CN108990996A CN 108990996 A CN108990996 A CN 108990996A CN 201811111596 A CN201811111596 A CN 201811111596A CN 108990996 A CN108990996 A CN 108990996A
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- florasulam
- sulfentrazone
- herbicidal composition
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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
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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Abstract
The invention belongs to pesticide herbicide technical fields, provide a kind of herbicidal composition containing sulfentrazone and florasulam, and sulfentrazone and florasulam weight ratio range are 240:1-3.75:1.Weeds Descurainia sophia, shepherd's purse, Veronica, the corn gromwell that herbicidal composition provided by the invention is used to prevent and kill off wheat paddock have good synergistic effect or addition.The present invention expands degrass spectrum, enhances preventive effect, quick-acting and lasting effect effective supplement, and avoiding to be prevented and kill off using single herbicide will lead to Weed Resistance and quickly 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 a kind of removing containing sulfentrazone and florasulam
Careless agent composition.
Background technique
Wheat is one of China's Three major grain crops, and cultivated area and total output are only second to rice, national cultivated area
Up to more than 3,000 ten thousand hectares, about 4.5 hundred million mu, the 22%-30% of national cultivated area, the about 20%- of cereal crops sown area are accounted for
27%, about 100,000,000 tons of wheat total output, reach 22%(Wu Ming honor of total output of grain etc., 2013, pesticide).Wheat is that China is main
Commodity food and strategic reserves grain kind, in grain-production, circulation and consumption have critical role, develop Wheat Production to me
State's national economic development and people's lives are of great significance.
But the weeds of wheat paddock have great threat to Wheat Production.According to national weeds reconnaissance information, China wheat
Field weed type has more than 200 kinds, and crop smothering area accounts for 30% or more of wheat planting area, and loss accounts for about wheat total output
15%.Therefore wheat weeds prevention and treatment is one of important process of wheat planting.
Herbicide is the common measure of current wheat weeds prevention and treatment, promotion wheat yield is improved and saved planting cost tool
There is important role.But herbicide it is long-term, be widely applied, make farmland weed chemical control there are Weed Resistance,
Population succession and drug injury problem are on the rise, and seriously affect high yield and safety (Wei Youhai, the lake of good harvest and succession crop of wheat
Northern agricultural sciences, 2011.4).Long-time service single herbicide, which is prevented and kill off, will lead to the decline of susceptible weeds quantity, insensitive or evil
Property weeds quantity rise, cause weed community to change, seriously affected the harvest of wheat crop yield.
Sulfentrazone, English name Sulfentrazone, alias N- (2,4-Dichloro-5- (4-
(difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl)
Methanesulfonamide, name of product N- (2,4- bis- chloro- 5- (4- difluoromethyl -4,5- dihydro -3- methyl -5- oxos -
1H-1,2,4- triazol-1-yls) phenyl) Methanesulfomide, molecular formula C11H10Cl2F2N4O3S, molecular weight 387.19, CAS accession number
122836-35-5.Belong to low toxicity herbicide.Raw medicine rat acute LD50 > 2855 mg/kg, Acute inhalation LC504.14
Mg/litre, the medicine is irritating to lagophthalmos to rabbit skin minimal irritation, to fish low toxicity.Belong to proporphyrinogen oxidase inhibitor.It is logical
Inhibition proporphyrinogen oxidase is crossed, makes to generate excessive protoporphyrin IX in plant cell, the latter is photosensitizer, causes to generate into the cell
Active oxygen eventually leads to cell membrane, the rupture such as vesicular membrane, the exudation of cell Dissolve things inside, death of drying up.Soil half-life period 110-280
It, cauline leaf process, soil treatment.It leads a cow suitable for the Tanakas such as corn, sorghum, soybean, peanut prevention and treatment, is Amaranthus retroflexus, Chenopodiaceae, graceful
Top sieve, herba digitariae, herba setariae viridis, Siberian cocklebur, herba eleusines indicae, rhizome of nutgrass flatsedge etc. 1 year raw broadleaf weeds, gramineae weed and nutgrass flatsedge etc..
Florasulam (florasulam) is developed by Dow agricultural sciences (Dow Agroscience) company
Triazolopyrimidine sulfonamides herbicide.Chemical name: 2 ', 6 '-two fluoro- 5- methoxyl group -8- fluorine [1,2,4] triazol [1,5-
C] pyrimidine -2- sulfonanilide；2',6'-difluoro-5-methoxy-8-fluoro[1,2,4]triazo-lo[1,5-c]
Pyrimidine-2-Sulfonanilide；CAS accession number: [145701-23-1].Florasulam is typical acetolactic acid
Synzyme (ALS) inhibitor is caused by inhibiting the intracorporal ALS enzymatic activity of plant to prevent the biosynthesis of branched-chain amino acid
The synthesis of protein is destroyed, so that the mitosis of plant cell be made to stop at S phase (DNA synthesize phase) and the G2 in Gl stage
The M phase in stage disturbs the synthesis of DNA, therefore cell cannot complete mitosis, so make its ontology growth stop and it is dead
It dies, ultimately causes Plant death.Florasulam is inner-adsorption conduction-type herbicide, can be absorbed by plant leaf blade and root system, is being divided
It accumulates in raw tissue and keeps plant gradually dead.Typical poisoning symptom are as follows: leaf chlorosis, albefaction or purpling, shortened internodes, top
Bud is dead, and final complete stool is dead.The herbicide has the advantages of bioactivity high broad weed-killing spectrum, due to its action target ALS enzyme
It is not related to humans and animals, therefore this kind of herbicide has very high safety to humans and animals.Florasulam is mainly used for seedling
Rear defence except winter wheat field broadleaf weeds such as clearvers, herba stellariae mediae, Polygonum weeds, compositae weeds etc., usage amount be only 3-10g effectively at
Part/hectare [mu dosage is 0.2-0.67g(a.i)].Florasulam is that stem and leaf treatment after seedling is prevented and kill off the wide spectrum of broadleaf weeds and removed
Careless chaste tree, per hectare dosage 5g can effectively prevent and kill off China pink material, madder material, Convolvulaceae, Malvaceae, knotweed, and field is important miscellaneous
Careless such as herba stellariae mediae, clearvers, black nightshade, volume stem smartweed are very sensitive to its.The pig calamity of plant height 20cm can be prevented and kill off with the dosage of 5g/hm2
Calamity, 2.5g can prevent and kill off the herba stellariae mediae of 6 leaf periods, and 5g can prevent and treat (Zhang Meifeng etc., the present such as herba stellariae mediae and the german chamomile in fertility advanced stage completely
Day pesticide, 2011/7).Song Guochun etc. the study found that half-life period of the florasulam in wheat plant is respectively 2.0-5.8d,
82% or more 14d resolution after medicine.The half-life period of florasulam in the soil is 5.5-9.6d, and 21d clears up 80% or more (mountain after medicine
Eastern agricultural sciences, 06 phase in 2015).Shandong Agricultural University recent studies have found that, Wheat Cultivars are to the resistance to of florasulam
Pharmacological property differs greatly (Liu Gang, pesticide market information, 2012/18 phase), and when use should be noted that.
Exploitation new product herbicide is expensive, the period is long, and in contrast, exploitation is efficient, less toxic, low-residual with research
With investing, small, the lead time is short with mixture for compounding.Reasonable chemical herbicide compounding or mixture, which have, expands degrass spectrum, improves
Control efficiency extends application period, reduces dosage, reduce phytotoxicity risk, reduce residual, delay weeds drug resistance and drug resistance
Generation and development the advantages that, so selecting suitable mixture of herbicides or mixture is solve the above problems maximally efficient and warp
One of method of Ji；However because the mechanism of action is complicated between mixed pesticide, after combination whether shadow of the synergy by many factors
It rings, only dependence experimental result is verified, and can not be expected.
Summary of the invention
To solve the deficiency in the prior art, the weeding containing sulfentrazone and florasulam that the present invention provides a kind of
Agent composition.
The present invention is achieved by the following technical solutions:
A kind of herbicidal composition containing sulfentrazone and florasulam, sulfentrazone and florasulam weight ratio model
It encloses for 240:1-3.75:1.
Preferably, the sulfentrazone and florasulam weight ratio range are 120:1-15:1.
It is furthermore preferred that the sulfentrazone and florasulam weight ratio range are 60:1-15:1.
It is furthermore preferred that the sulfentrazone and florasulam weight ratio range are 50:1-20:1.
It is furthermore preferred that the sulfentrazone and florasulam weight ratio range are 50:1,40:1,30:1,20:1.
It is furthermore preferred that the sulfentrazone and florasulam weight ratio range are 240:1,120:1,60:1,10:1,
7.5:1。
The herbicidal composition preparation is missible oil, aqueous suspension agent, oil-suspending agent, wettable powder, granule or water
The acceptable dosage form of the pesticides such as dispersible granule.
The herbicidal composition is used to prevent and kill off weeds Descurainia sophia, shepherd's purse, Veronica, the corn gromwell of wheat paddock.
The beneficial effects of the present invention are:
1. expanding degrass spectrum, quick-acting and lasting effect obtain effective supplement.Weeds after sulfentrazone is compounded with florasulam
It prevents and kill off spectrum to have complementary advantages, has good effect to wheat paddock broadleaf weeds, and quick-acting and lasting effect are excellent.
2. enhancing preventive effect.Interaction type is addition and has increasing after first sulfentrazone is compounded with florasulam
Effect effect, preventive effect enhancing are better than effect is applied alone.
3. avoiding to be prevented and kill off using single herbicide will lead to Weed Resistance and quickly occur, delay the hair of herbicide resistance
It is raw.
4. reducing dosage, use cost is reduced, mitigates environmental pollution.
Specific embodiment
The present invention will be further described With reference to embodiment, but the present invention should not be interpreted as limited to these
Embodiment.
1 sulfentrazone of embodiment, florasulam configure aqueous suspension agent
Reagent agent is 91% sulfentrazone raw medicine, 92% florasulam raw medicine.Weigh quantitative first respectively with electronic balance
Sulphur grass amine, florasulam raw medicine after emulsifier special dissolution is first added, add 2 times of n,N-Dimethylformamide to complete
It is spare to be diluted to 1% mother liquor with 0.1% Tween-80 aqueous solution for fully dissolved.Sulfentrazone, florasulam ratio are shown in Table 1.
1 sulfentrazone of table, florasulam compound proportion
| Sulfentrazone | Florasulam |
| 45 | 1.5 |
| 45 | 3 |
| 45 | 6 |
| 45 | 12 |
| 90 | 1.5 |
| 90 | 3 |
| 90 | 6 |
| 90 | 12 |
| 180 | 1.5 |
| 180 | 3 |
| 180 | 6 |
| 180 | 12 |
| 360 | 1.5 |
| 360 | 3 |
| 360 | 6 |
| 360 | 12 |
2 sulfentrazone of embodiment, florasulam configure suspending agent
40% sulfentrazone suspending agent is measured, 50g/L florasulam suspending agent is blended into the double fluorine sulphur grass of 10% methyl tribenuron-methyl
Amine suspending agent, sulfentrazone: florasulam ratio is 20:1,30:1,40:1,50:1.
The screening of 3 laboratory experiment of embodiment
No.1 experimental condition
It is Descurainia sophia, shepherd's purse, Veronica and corn gromwell for examination weeds.The training of test test material is carried out in the glasshouse for having heating
It supports, 15-25 DEG C of temperature, natural lighting.It is 9 cm that quantitative Descurainia sophia, shepherd's purse, Veronica and corn gromwell seed, which are sowed at diameter,
Plastic tub in, weeds earthing 1-2 mm is put into the enamel tray equipped with water, water is allowed gradually to penetrate into, after waiting water to be seeped into native table turn
It is stand-by to move into phjytotron.
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.
No.2 experimental design
Complex weedicide is configured according to method in embodiment 1, sulfentrazone sets 45,90,180,360 ga.i./ha, double fluorine sulphur grass
Amine sets 1.5,3,6,12ga.i./ha.Each medicament various dose uses to obtain different mixed dosage with two-by-two.
It tests in the processing of Descurainia sophia, shepherd's purse, Veronica and corn gromwell 3-5 leaf phase cauline leaf even spraying.
Sprinkling system, Fan spray head, in conjunction with sprinkler pressure, flow etc., by practical spray face are automatically controlled using ASS-4 type
Product (1.1 m2) sprays 50 mL medical fluids (equivalent 30 L of mu water consumption), has debugged the speed of service, and plastic tub to be processed is uniform
It is arranged on spraying platform, even spraying processing.0.4 MPa of atomisation pressure, Fan spray head flow 800mL/min.It is supreme by low amounts
Amount successively sprays.Every processing is repeated 4 times.
No.3 test result calculates
With synergy type of the Gowing method evaluation after mixed.
Gowing law theory preventive effect calculating formula are as follows:
X, Y are respectively the anti-valid value of actual measurement (%) of two single doses in formula, and E is the anti-valid value of actual measurement (%) that different ratio is used with, and E0 is
Theoretical anti-valid value (%).It is short of money when being synergistic effect, E- E0<-5 when being addition, E- E0>5 when E- E0 is between -5-5
Anti- effect.
2 sulfentrazone of table and florasulam mixture synergy indoor measurement (Gowing method)
Test result shows that sulfentrazone has a good effect to wheat paddock broadleaf weeds Veronica, corn gromwell, at higher dosage
Manage also preferable to Descurainia sophia, shepherd's purse effect, the pharmacy effect speed is fast, after application the 2nd day weeds hop to it is withered die, disadvantage
It is that the lower processing latter portions weeds of dosage can turn green part restoration ecosystem；Another medicament florasulam mode of action is just
For good and sulfentrazone on the contrary, speed of action is slower, weeds yellow inhibits growth after 5 days after application, but the medicament lasting effect is good, right
Descurainia sophia, shepherd's purse, corn gromwell effect are fine, slightly lower to Veronica.
The experimental results showed that sulfentrazone and florasulam mixture cooperate with Descurainia sophia, in sulfentrazone and double
Penoxsulam mixture is 120:1,60:1,30:1, and 15:1 shows as synergistic effect, other ratios show as addition, do not have
There is antagonism.
The experimental results showed that sulfentrazone and florasulam mixture cooperate with shepherd's purse, in sulfentrazone and double fluorine
Sulphur grass amine mixture is 240:1, and 60:1,30:1 show as synergistic effect, other ratios show as addition, antagonism do not occur
Effect.
The experimental results showed that sulfentrazone and florasulam mixture cooperate with Veronica, in sulfentrazone and double
Penoxsulam mixture is 30:1, and 7.5:1 shows as synergistic effect, other ratios show as addition, antagonism work do not occur
With.
The experimental results showed that sulfentrazone and florasulam mixture cooperate with corn gromwell, in sulfentrazone and double
Penoxsulam mixture is 15:1, and 7.5:1 shows as synergistic effect, other ratios show as addition, antagonism work do not occur
With.
Sulfentrazone has complementary advantages after compounding with florasulam, and quick-acting and lasting effect are excellent, to Descurainia sophia, shepherd's purse,
Veronica and corn gromwell have good effect, and compounding effect belongs to synergistic effect or addition.
Recommend sulfentrazone 180-360g a.i./ha and florasulam 6-12g a.i./ha compounding, i.e. sulfentrazone:
Florasulam is 15-60:1.
The measurement of 4 field efficacy of embodiment
No.1 experimental condition
The selection of No.1.1 crop and cultivar
Winter wheat, kind are sowing in Jimai on October 7th, 22,2017, per acre 30 kilograms of application rate, line-spacing 30cm, the wide 4.3m of furrow.
The selection of No.1.2 subjects weeds
Descurainia sophia, shepherd's purse, clearvers etc..There are also the big fringe amur foxtails of a small amount of gramineae weed.
No.1.3 cultivation condition
Test wheat paddock is located at the Jinan City, Shandong Province Licheng District Huashan village Zhen Sujia.It is experimental field loam, the content of organic matter exists
1.3% or so, pH value 7.2.Experimental plot weeding control effect is uniform, so not applying other herbicides during entire test；When application not
See disease pest, in addition apply N P and K (ratio 15-15-15) compound fertilizer 80kg when winter wheat sowing per acre, 2018 years 4
Urea 20kg is applied per acre when moon watering on the 1st.The wheat florescence is prevented and treated powdery mildew 2 times with triadimefon+potassium dihydrogen phosphate；Wheat earing stage
It sprays and carrys out good fortune spirit prevention and treatment winter wheat aphid twice.
It is smooth to test topography, management is consistent, and it is preferable that fertility and water pour condition, respectively on October 7th, 2017 after planting and
On December 9th, 2017, on April 1st, 2018, respectively watering was primary.
Experimental field preceding stubble maize planting, herbicide used are nicosulfuron and atrazine.
No.2 experimental design
No.2.1 test medicine
The suspending agent configured using embodiment 2.
No.2.2 application method
Spraying instrument is noncomparable advanced knapsack sprayer, tests each processing by per hectare and is watered 450 liters of even sprayings.In
The processing of winter wheat field annual grassy weeds 3-5 leaf phase cauline leaf even spraying.
No.2.3 spraying time and number
It tests and is carried out on March 14th, 2018, application is primary altogether.Wheat is in and turns green initial stage when application, grows fine；Field is miscellaneous
The careless 3-5 leaf phase, based on Descurainia sophia, shepherd's purse, clearvers, a small amount of big fringe amur foxtail.
No.2.4 drug effect calculation method
Calculation formula:
No.3 experimental result
3 10% methyl tribenuron-methyl florasulam suspending agent of table is applied to the measurement of wheat paddock field efficacy and (adjusts within 30 days after application
It looks into)
Test result shows that 40% sulfentrazone suspending agent is preferable to Descurainia sophia, shepherd's purse, clearvers effect, early period effect most
It is excellent, but later period small part weeds have and turn green, and effect is declined slightly, and later period fresh weight preventive effect is slightly below strain preventive effect；The bis- fluorine sulphur grass of 50g/L
Amine suspending agent is strong to the weeds inhibiting effect such as Descurainia sophia, and anaphase effect is good；The double fluorine sulphur grass of 10% sulfentrazone of the two compound preparation
Amine suspending agent integrates two single dose advantages, and quick-acting and lasting effect are fine, equal to test field weed Descurainia sophia, shepherd's purse, clearvers
There is good effect, 4 proportions are better than two single doses.
It tests while also found, the grass family that 40% sulfentrazone suspending agent is applied alone and compound preparation is a small amount of to experimental plot
The big fringe amur foxtail of weeds also has preferable effect.Another comparison medicament florasulam is invalid to big fringe amur foxtail.
10% sulfentrazone florasulam suspending agent is safe to wheat.
The above is only the preferred embodiment of this patent, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the art of this patent principle, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as the protection scope of this patent.
Claims (8)
1. a kind of herbicidal composition containing sulfentrazone and florasulam, it is characterised in that: sulfentrazone and double fluorine sulphurs
Careless amine weight ratio range is 240:1-3.75:1.
2. a kind of herbicidal composition containing sulfentrazone and florasulam according to claim 1, feature exist
In: the sulfentrazone and florasulam weight ratio range be 120:1-15:1.
3. a kind of herbicidal composition containing sulfentrazone and florasulam according to claim 2, feature exist
In: the sulfentrazone and florasulam weight ratio range be 60:1-15:1.
4. a kind of herbicidal composition containing sulfentrazone and florasulam according to claim 3, feature exist
In: the sulfentrazone and florasulam weight ratio range be 50:1-20:1.
5. a kind of herbicidal composition containing sulfentrazone and florasulam according to claim 4, feature exist
In: the sulfentrazone and florasulam weight ratio range be 50:1,40:1,30:1,20:1.
6. a kind of herbicidal composition containing sulfentrazone and florasulam according to claim 1, feature exist
In: the sulfentrazone and florasulam weight ratio range be 240:1,120:1,60:1,10:1,7.5:1.
7. a kind of herbicidal composition containing sulfentrazone and florasulam, feature described in -6 according to claim 1
Be: the herbicidal composition preparation is missible oil, aqueous suspension agent, oil-suspending agent, wettable powder, granule or water dispersion
The acceptable dosage form of the pesticides such as granula.
8. a kind of herbicidal composition containing sulfentrazone and florasulam, feature described in -6 according to claim 1
Be: the herbicidal composition is used to prevent and kill off weeds Descurainia sophia, shepherd's purse, Veronica, the corn gromwell of wheat paddock.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
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Application publication date: 20181214 |