CN107079909A - Herbicidal composition and its application - Google Patents
Herbicidal composition and its application Download PDFInfo
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- CN107079909A CN107079909A CN201710429796.6A CN201710429796A CN107079909A CN 107079909 A CN107079909 A CN 107079909A CN 201710429796 A CN201710429796 A CN 201710429796A CN 107079909 A CN107079909 A CN 107079909A
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- herbicidal
- furans sulphur
- isopropyl methoxalamine
- sulphur humulone
- 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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/08—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
- A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
- A01M21/043—Apparatus for destruction by steam, chemicals, burning, or electricity by chemicals
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Toxicology (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to pesticide field, and in particular to a kind of herbicidal composition and its application, and the herbicidal composition includes active ingredient isopropyl methoxalamine and furans sulphur humulone.The present invention compounds both on the basis of single herbicide isopropyl methoxalamine and furans sulphur humulone for paddy land weed, and single herbicide is improved so that the reduction of herbicide cost, raising weeding convenient and efficient, degradable to Crop securify.The present invention have the Herbicidal combinations that necessarily match the herbicidal effect of paddy land weed is significantly better than it is single before compounding use, with significant synergy, the development for weeding agricultural chemicals is significant.
Description
Technical field
The invention belongs to herbicide field, and in particular to a kind of binary complex type herbicidal composition and its application.
Background technology
Isopropyl methoxalamine, the chloro- 6- second of English name metolachlor, CAS accession number 178961-20-1, chemical name 2-
Base-N- (2- methoxyl group -1- Methylethyls) acetyl-o- replaces aniline, is a kind of efficiently, before the selective bud of low toxicity, low-residual to remove
Careless agent, it is adaptable to soil treatment before dry crop broadcasts rear before seedling or transplanted, can prevent and kill off annual gramineous weed, part dicotyledonous
Weeds and annual sedge weed, such as barnyard grass, lady's-grass, Brachiaria Griseb, eleusine indica, green bristlegrass, difformed galingale herb, cyperus iria, shepherd's purse
Dish, amaranth, dayflower and knotweed etc..S-metolachlor is the S active isomers of isopropyl methoxalamine, therefore the also known as isopropyl methoxalamines of S mono-.
Furans sulphur humulone, also known as special chaff ester ketone, exploitation code name AVH-301, English common name tefuryltrione, CAS are stepped on
Record 473278-76-1, chemical name 2- { the chloro- 4- mesyls -3- of 2- [(RS)-tetrahydrofuran -2- ylmethoxymethyls] benzene
Formoxyl } thiacyclohexane -1,3- diketone is Bayer, northern Xinghua is learned and the benzoylcyclohexan diones of Zennoh joint developments are removed
Careless agent, broad weed-killing spectrum can prevent and kill off paddy field the worst weeds.Furans sulphur humulone is sour dual oxide enzyme (HPPD) suppression of 4- medical midbodies of para (ortho)-hydroxybenzoic acetone
Preparation, is mainly used in paddy rice, cereal field and prevents and kill off before annual and perennial broadleaf weed, bud to can be used after bud.
In recent years, with the extensive use of all kinds of herbicides, the chemical herbicide phenomenon that certain single variety is used for a long time is big
Amount is present, and this has resulted in weeds increasingly stronger drug resistance and the resistance to the action of a drug so that the reduction of weeding scope, herbicidal effect weaken,
The herbicide effect time shortens, and to Pesticide use, person has a negative impact.For example, as ALS, ACCase, IPPO, steroids suppress
The extensive use of the herbicide of the types such as agent, many weeds resistance universal to which creating.It is a kind of for resistance weed
Solution is exactly that existing herbicide is compounded.But, the phase interaction between herbicide and between herbicide and crop
With being sufficiently complex.Lu Xiangyang et al. is write articles (see " short of money between herbicide in view of the antagonism of herbicide and synergistic effect
The trend of anti-effect and synergistic effect-studied in the past " (《Agricultural chemicals collected translation》The second phase in 1999)), and point out：" herbicide exists
There may be interaction before into plant and after entrance plant, the result of this interaction is probably that synergy is made
With, it is also possible to antagonism or summation action.... some researchs show that some factors can influence the phase interaction of herbicide
Use mode.This includes the permeability of herbicide, the metabolism in plant, to the Competition of site of action acceptor, removes
Affinity interaction and repulsive interaction between careless agent, or even genotype and the dosage of herbicide dependent on plant.These knots
Fruit highlights the Special complex that between the mechanism of action of herbicide, herbicide or they have between plant.... want
It is empirically each mixed to various floristic action characteristics to judge, science or reality are reached using this data
Purpose, is unpractical ".Author is according to statistics, and " in 479 examples, antagonism is 322, accounts for 67%, increasing
Effect act as 157, accounts for 33% ".The reason for antagonism between herbicide is probably：(1) biochemical antagonism, i.e. one kind are removed
Careless agent reduces the amount or chance (2) competitive antagonism that another herbicide reaches site of action, i.e., two kinds herbicide competitions
Same site of action (3) physiology antagonism, i.e., the bioactivity of two kinds herbicides has the chemical antagonism of negative function (4),
The i.e. two kinds mutual chemically reactives of herbicide.In addition, author also indicates that, " the different two class herbicide antagonisms effect of mechanism of action
Trend it is bigger "；", there is the probability of synergistic effect more in the more different classes of herbicide mixture of same category of herbicide mixture
Height, the probability for antagonism occur is low ".
At present, there are some isopropyl methoxalamines to have the report compounded with other active components, also have furans sulphur humulone with
The report that other active components are compounded, but the herbicidal composition that both active components are compounded does not appear in the newspapers
Road.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of good preventive effect, drug effect length, broad weed-killing spectrum, apply
Consumption is few, to crop safety and can solve the Herbicidal combinations of drug resistance and resistance problem, said composition composition constitute it is simple, and
And there is therebetween the effect of Synergistic, prevention effect can be effectively improved.
To achieve these goals, present invention employs following technical scheme：A kind of binary herbicidal composition, with isopropyl
Alachlor, furans sulphur humulone are active component, and the weight ratio of the two is 1：0.1~5, preferred weight ratio 1：0.2~4, further
It is preferred that weight ratio be 1:0.5~3 or 1:0.6~3,1:0.7~1.5.At least 90% is smart isopropyl in the isopropyl methoxalamine
Alachlor, preferably at least 95% is S-metolachlor.
Described Herbicidal combinations, consider the mixed synergistic effect of two kinds of active components, herbicidal effect and it is economical into
Sheet, preferably isopropyl methoxalamine：The weight of furans sulphur humulone compares 1：0.9~1.1, it is particularly 1:1, in the isopropyl methoxalamine at least
90% is S-metolachlor.Consider synergy type, herbicidal effect and the financial cost of two kinds of pharmacy mix, recommend
Furans sulphur humulone：The optimum proportioning of S-metolachlor is 1:1.Because：1. furans sulphur humulone：S-metolachlor is matched
For 1:When 1, it is mutually improved and acts on stronger, co-toxicity coefficient is high, is conducive to carrying out weed control.2. the valency of current furans sulphur humulone
Lattice are higher, are more than 20 times of S-metolachlor, reduce the consumption of furans sulphur humulone, can reach preferably preventing and treating effect
Really, it can reduce farmer's burdens again, create social value.From the point of view of the selection result, furans sulphur humulone：S-metolachlor 1:1
Cost performance is highest.3. S-metolachlor active compound is oily liquids, and furans sulphur humulone is pulverulent solids.1:1 ratio
Most beneficial for formulations of pesticide stability is carried out, be conducive to live process operation.
Described herbicidal composition may further include safener C.The safener is in following compound
It is one or more：C1：Isoxadifen；C2：Cyclopropyl-sulfonylamide (cyprosulfamide)；C3：Mefenpyrdiethyl；C4：Removing toxic substances
Quinoline；C5：Gibberellic acid；C6：Xie Cao oxazoles (furilazole)；C7：N- (2-2 methoxybenzoyls base) -4- [(methylamino carbonyls
Base) amino] benzsulfamide.The consumption of safener is to ensure drug safety as principle.Those skilled in the art can be according to application
Be actually needed, specifically select and determine corresponding ratio.
Can also be for example various to carry according to the difference of formulation, including various auxiliary agent of weedicide in the herbicidal composition
Body/solvent and surfactant etc., so that the various formulations of pesticide are made.The carrier include water, benzene, dimethylbenzene, toluene, octanol and
Dichloromethane, hexane, dimethylformamide, methanol, dichloroethanes, diatomite, thiamines, macroelement fertilizer etc..Other auxiliary agents
It may include emulsifying agent, dispersant, bleeding agent or wetting agent, it can be anionic or non-ionic.The example that can be mentioned that
It is salt, oxirane and the aliphatic alcohol of polyacrylic acid or (is particularly alkyl with aliphatic acid or with aliphatic amine and fortified phenol
Phenol or aryl phenol) polymer, sulfosuccinate, the phosphoric acid of taurine derivatives (particularly taurine alkane fat) and alcohol
Phosphate, alkylsulfonate, alkylaryl sulfonates, alkyl sulfate, the lauryl ether sulphur of the phenol of ester or multi-hydroxy ethyl
Hydrochlorate lignosulfonates, the salt of phenolsulfonic acid or naphthalene sulfonic acids, aliphatic alcohol sulfate, and sulphation 16-, 17-and ten
Eight alkanols and sulphated fatty alcohol glycol ether, in addition with condensation product, the polyoxy second of naphthalene or naphthalene sulfonic acids and phenol and formaldehyde
Alkene octyl phenyl ether, ethoxylated isooctyl-phenol, octyl phenol or nonyl phenol, alkyl phenyl polyglycol ether, tributyl phenyl gather
Glycol ether, three stearyl phenyl polyglycol ethers, alkyl aryl polyether alcohol, alcohol and fatty alcohol/ethylene oxide condensation product, ethoxy
Base castor oil, polyoxyethylene alkyl ether, ethoxylation polyoxypropylene, laruyl alcohol polyglycol ether acetal, sorbitol ester, lignin
Sulfite waste liquor, and protein, albuminate, polysaccharide (such as methylcellulose), Hydrophobic Modified Starch, polyvinyl alcohol,
Polycarboxylate, poly-alkoxyl compound, polyvinylamine, polyvinylpyrrolidone and its copolymer.At least need a kind of surface-active
Agent is present, and to be conducive to dispersing and dissolving (or suspend) of the active component in water, and is conducive to enabling them to correctly being applied to
Plant.Above-mentioned composition can also contain various other components, such as protecting colloid, adhesive, thickener, thixotropic agent, stabilizer,
Chelating agent, dyestuff, colouring agent and polymer.
The present invention composition can by user using it is preceding through dilute or directly use.It, which is prepared, to be added by common
Work method prepare, i.e., after active material is mixed with liquid flux or solid carrier, add surfactant such as dispersant, surely
Determine the one or more in agent, wetting agent, adhesive, defoamer etc..By active compound (active component) in above-mentioned formula, safener,
Solvent, emulsifying agent are added in mother liquor modulation kettle, homogeneous oil phase are made, by the well mixed injection product such as deionized water, antifreeze
It is well mixed that the transparent or semitransparent liquor product of the present composition is made through high-speed stirred in modulation kettle；Or adsorbed
(or grinding) is crushed, the fillers such as diatomite, surfactant, safener are uniformly mixed, present composition solid formulation is made
Type product such as wettable powder, granule, meet peasant household's demand of different geographical.In brief, composition of the invention can be with
Mixed with conventional use of solid in the formula of prior art and liquid additive.The specific preparation of the Herbicidal combinations is can
Scattered oil-suspending agent, aqueous suspension agent, suspension emulsion, missible oil, water dispersible granules (dry suspending agent), aqueous emulsion, microemulsion, wettable powder
Agent, granule, floating granula.The weight of the active component accounts for the 1-60% of total amount.
Suspension emulsion (SE) is one of highly important formulation in modern, with efficiently, being compatible with the environment property is good, use
Conveniently, safely the characteristics of.Suspension emulsion, is helped by the water insoluble active ingredient of solid phase and liquid phase by dispersant, emulsifying agent etc.
Uniformly and stably suspended in water uphanging of being formed in the fine liquid pearl form of solia particle and emulsification respectively in the presence of agent
Floating dispersion.In addition to herbicide active ingredient, the formula composition of suspension emulsion includes：Dispersant, wetting agent, other adjuvants
(suspending agent, antifreezing agent, defoamer, preservative, stabilizer etc.).The surfactant used in suspension emulsion typically can select system
The emulsifying agent and dispersant used in standby SC and EW formulations.Conventional emulsifying agent has alkylbenzenesulfonate, alkylphenol-polyethenoxy
Ethers, styryl phenol polyethenoxy ethers, polyol fatty acid ester and its polyoxyethylene addition product etc.Non-/anion compounding
Thing application is also very universal.Conventional dispersant has lignosulfonates, alkylnaphthalene sulfonate formaldehyde condensation products, alkylaryl to gather
Oxygen vinethene and its phosphate or salt and Pluronic PE 6800 etc..The thickener that suspension emulsion is used also can select in processing SC
Thickener typesSuch as xanthans, bentonite, silica, Magnesiumaluminumsilicate, can typically obtain better effects.The present invention
The preparation method of furans sulphur humulone and S-metolachlor suspension emulsion：Active ingredient furans sulphur humulone and S-metolachlor is former
Medicine is well mixed with dispersant, emulsifying agent, solvent, wetting agent, thickener, stabilizer, water, clipped scattered 20~30 minutes, and 3
Level, which is sanded to 90% particle diameter, is less than 3 μm, obtains furans sulphur humulone of the present invention and S-metolachlor suspension emulsion.Preferred scheme is
In suspension emulsion, active component isopropyl methoxalamine and furans sulphur humulone respectively account for the 8-12% of gross weight.
The composition of the present invention can be applied to be applied to weeds on pending plant leaf blade by the method for spraying, special
It is not on the weed infestation being harmful on plant growth or the surface that easily invasion influences.Or spread fertilizer over the fields in earth's surface or shallow soil layer,
Weeds root system can be fully absorbed, or be dissolved in water layer by weeds fully medicine.
Compared with prior art, beneficial effects of the present invention are embodied in：Compounded by furans sulphur humulone and isopropyl methoxalamine,
Prevention effect to weeds is significantly better than single using effect before compounding, with obvious synergistic effect, can not only expand and kill
Grass spectrum and amount of application is few, weeding is faster more longlasting, and to crop safety, confrontation ALS, ACCase, IPPO, steroids inhibitor
The weeds of herbicide are efficient, with good application prospect.
Embodiment
Material, reagent used etc., unless otherwise specified, are commercially obtained in the following example.
The present invention is described in detail below by specific embodiment." % " of the present invention is weight percent
Than " part " number is parts by weight.
The different ratio activity of weeding experiment mixed with furans sulphur humulone of the S-metolachlor of embodiment 1
Dissolve furans sulphur humulone and S-metolachlor active compound using proper amount of acetone, then using 0.1% Tween 80 water
Solution dilutes, and configures single dose mother liquor, is matched after being diluted according to experimental design, standby.
S-metolachlor (numbering A) is chosen respectively：300th, (numbering is respectively A1 to 375,450,525 and 600g ai/ha
~A5)；Furans sulphur humulone (numbering B)：450th, 525,600,750 and 900g ai/ha (numbering is respectively B1~B5), each dosage
Mixture is that 25 compounding formation, 25 embodiments are handled respectively.
From direct seading rice field main weeds barnyard grass (Echinochloa crusgalli) and moleplant seed (Leptochloa
Chinensis it is) experiment target.Prior year direct seading rice field is collected in for examination weed seed.
The experiment special soil that experiment soil is collected for non-medication plot.Bore 15cm, depth 10cm flowerpots are taken, soil is filled to 3/
4 height.Treat that soil suctions moisture, quantitatively sowing barnyard grass, each 50 of moleplant seed seed respectively per basin, after planting, cover 0.5~
The mixed husky fine earths of 1.0cm, are placed in greenhouse, from bottom, water suction keeps ground moistening, 25 DEG C of greenhouse temperature~35 DEG C, air humidity
More than 50%, after standing 24 hours, carry out soil spraying treatment before bud.
This experiment uses and carries out soil spraying treatment before bud to barnyard grass and moleplant seed under greenhouse pot culture method, each dosage.Spraying
The full-automatic spray towers of 3WPSH-500E that device is produced by Nanjing agriculture mechanical investigations, operating pressure 0.2MPa.Often processing sets 4
Secondary repetition, separately sets blank control.Handle in rearmounted greenhouse and grow, periodically with bottom-irrigating mode moisturizing, keep ground moistening.Place
Plant reaction symptom is regularly observed after reason, and, per basin weeds number of emerging, actual survival rate is calculated in investigation in 15 days after medicine.
The S-metolachlor of table 1 different ratio activity of weeding mixed with furans sulphur humulone
As seen from the data in Table 1, S-metolachlor and furans sulphur humulone are alone to barnyard grass and the strain number preventive effect one of moleplant seed
As, 300~600g of S-metolachlor ai/ha are respectively 49.4%~79.5% He to the strain number preventive effect of barnyard grass and moleplant seed
32.1%~70.4%, furans sulphur 450~900g of humulone ai/ha are respectively 15.7% to the strain number preventive effect of barnyard grass and moleplant seed
~33.1% and 34.6%~50.6%.S-metolachlor and the mixed preventive effect to barnyard grass and moleplant seed of furans sulphur humulone have compared with
Big raising, each strain number preventive effect that barnyard grass and moleplant seed are compared for trial is respectively 72.3%~100% and 67.9%~
100%.
The S-metolachlor of embodiment 2 is mixed with furans sulphur humulone different ratio real to the synergy type for trying target
Test
The reasonability of two kinds of herbicide synergy types and proportioning is evaluated with Gowing methods.
E strain numbers preventive effect (%)=(control weeds strain number-processing weeds strain number) * 100/ control weeds strain number
E0=X+Y-XY/100
In formula：
X represents the Weed-control effect of herbicide A when consumption is P；
Y represents the Weed-control effect of herbicide B when consumption is Q；
E0Represent the theoretical Weed-control effect of herbicide A+B when consumption is P+Q；
E represents the actual Weed-control effect of each processing.
Work as E-E0>It is synergistic effect when 10%, works as E-E0<It is antagonism when -10%, works as E-E0Between ± 10%
When be addition.
The S-metolachlor of the table 2 synergy type checking to for trying target mixed with furans sulphur humulone different ratio
Different ratio processing is examined to the Herbicide activity data Gowing methods for examination weed moleplant seed, barnyard grass, E-E0
More than 10%, it is synergistic effect than handling to barnyard grass and the synergy type of moleplant seed to show all confession trials of two medicaments.
The S-metolachlor of the different ratio of embodiment 3 is mixed with furans sulphur humulone to nutgrass flatsedge and the herbicidal effect of lady's-grass
According to the identical method of embodiment 1, the S-metolachlor for preparing different ratio is formed with furans sulphur humulone mixture
25 kinds of complex herbicidal compositions, test it to other common weed nutgrass flatsedges of rice terrace and the herbicidal effect of lady's-grass, and according to
The method of embodiment 2 is tested to the type of its synergy.
Test result shows that the herbicidal composition of different ratio is to the Herbicide activity data for examination weeds nutgrass flatsedge, lady's-grass
Examined with Gowing methods, E-E0Different degrees of is more than 10%, and E-E is matched individually0Value is more than 20%.
As a result show, for examination two medicaments by the proportioning of the present invention it is mixed after can improve activity of weeding, expand herbicide controlling spectrum.
All proportioning processing of two medicaments are synergy to the synergy type of rice field common weed moleplant seed, barnyard grass, nutgrass flatsedge, lady's-grass
Effect.
The furans sulphur humulone S-metolachlor suspension emulsion preparating example of embodiment 4
Formulation：Suspension emulsion
Chemical name and proportioning：The S-metolachlor of 10% furans sulphur humulone+10%
Formula table：
Add A material well mixed after B material are sheared 30 minutes, the weight proportion 2 of A material and B material：8, then be sanded three hour a left side
The right side.
The field control effectiveness test of embodiment 5
Test objective：Clear and definite 20% furans sulphur humulone S-metolachlor suspension emulsion (10%+10%) prevents and kill off live water
The effect of weeds in paddy field, suitable dosage and its security to paddy growth.
Crop and the selection of cultivar：Direct seading rice, kind：Its excellent China accounts for.
Experimental plot place：Changsha County in Hunan province, main weeds have barnyard grass (Echinochloa crusgalli), moleplant seed
(Leptochloa chinensis), water amaranth (Ammannia baccifera), difformed galingale herb (Cyperus
difformis).Experimental plot weeding control effect is substantially uniform.
Cultivation condition：The rice growing phase is on June 12nd, 2016, application rate 7.5kg/667m2。
Other conditions：Experimental plot area about 3500m2, preceding crop is to turn over after rape, harvest.Preceding crop field is used
10.8% high lid EC 32.4g a.i./hm2Controlling Weeds in Rape Fields field annual gramineous weed.
Test medicine：20% furans sulphur humulone S-metolachlor suspension emulsion (being prepared according to embodiment 4)
Comparison medicament：25% furans sulphur humulone suspending agent；960 g/l of S-metolachlor alachlor EC, first just up to (Soviet Union
State) crop protection Co., Ltd；10% a thousand pieces of gold EC, The Dow Agrosciences, LLC..
Table 3-1 reagent agent experimental designs
The random district's groups arrangement of cell.Trial zone surrounding sets protection row.Plot area：20m2；Number of repetition：4.
5~10 days even sprayings after rice growing, keep field moisture state in 3 days after dispenser.Spraying tool adds to be new
The HD400 knapsack sprayers of Po Li agricultures private limited partnership production.After dispenser date is on June 19th, 2016 i.e. rice growing
7 days, spraying times were once.
Prevent and treat disease pest and non-target weeds medicament data：Rice growing season uses EC80ml/ mus of 40% favour snout moth's larva, 70% gold medal rice
Rich WP70g/ mus, 2% leaf does not roll up EC45ml/ mus and 25% and flies WP20g/ mus of preventing and treating rice pests of electricity.
Turn thunder shower weather, 32 DEG C of maximum temperature, 23 DEG C of minimum temperature, 3~4 grades of wind-force on the day of dispenser for the moon.Before dispenser
10 days 23.4 DEG C of average maximums, average 19.7 DEG C of minimum temperature.3rd, 10 it rains after dispenser, rainfall is 8.3 Hes
5.9mm, 10 days 28.6 DEG C of average maximums after dispenser, average 22.8 DEG C of minimum temperature.10 days extreme maximum temperatures after dispenser
32 DEG C, the 1st day is appeared in after medicine, and 22 DEG C of extreme minimum temperature appears in after medicine the 3rd day.
Field management data：Applied 15 pounds/acre of urea on July 22, August applies 20 pounds/acre of urea on the 12nd.Do not make during experiment
Other herbicides are used, pest control is twice.15 days after dispenser, carry out artificial weeding twice within 30 days, manually pull out in cell and own
Weeds.
Weedy rices：15 days after dispenser, remaining weeds strain number is investigated respectively within 30 days, 45 days, calculate strain number preventive effect；After dispenser
Remaining weeds fresh weight is determined while 45 days investigation remaining weeds strain numbers, strain number preventive effect and fresh weight preventive effect is calculated.October 16 is right
Paddy rice theory surveys production.
Grab sample counting method is taken in items investigation, i.e., take 4 points per cell, each point 0.25m2, point species calculating
The fresh weight of remaining weeds strain number or weeds aerial part in sample prescription.
After planting 22 days, every square metre of check plot there are about 79 plants of barnyard grass, 40 plants of moleplant seed, 59 plants of water amaranth, difformed galingale herb
59 plants.
Drug effect computational methods：Preventive effect (%)=[(CK-PT)/CK] × 100
In formula：CK is check plot weeds strain number or fresh weight, and PT is the remaining weeds strain number in applying area or fresh weight.
7 after dispenser, observe paddy growth situations 15,30 days three times.According to GB/T17980.40-2000, observation post administration is applied
Paddy growth situation, if any poisoning, then records paddy rice strain number in poisoning situation, and observation unit's area, plant height, divides in detail
The indexs such as tiller number, determine theoretical yield during rice harvesting.To other biotic influences：Each confession amount of reagent pair is irregularly observed after dispenser
The influence of non-target organism.
As a result with analysis
Table 3-2 prevents and kill off direct seading rice field weed effect (%) --- after dispenser15 days
Table 3-3 prevents and kill off direct seading rice field weed effect (%) --- after dispenser30 days
Table 3-4-1 prevents and kill off direct seading rice field weed effect (%) --- after dispenser45 days
Table 3-4-2 is prevented and kill off after direct seading rice field weed effect (%)-dispenser 45 days
Test data SPSS (Statistics Package for Social Science) for Windows11.5
Statistical software carries out variance analysis.
15 days seedling qualities are investigated result and shown after range estimation and medicine after dispenser, 20% furans sulphur humulone S-metolachlor
288~384g of SC a.i./hm2Processing for examination rice varieties " the excellent China in day accounts for " to growing safety, 480~960g a.i./hm2Place
Manage to being had a certain impact for examination paddy growth, be embodied in plant height dwarfing, tiller number reduction, the mitigation of overground part fresh weight,
It restore normal growth within 20 days or so after medicine.
Three times the survey showed that, 20% furans sulphur humulone S-metolachlor SC288~960g a.i./hm2To straight
Broadcasting barnyard grass in paddy field, moleplant seed, water amaranth and difformed galingale herb has good preventive effect, and more than 45 days lasting period, a drug can base
The harm of weeds in this solution direct seading rice whole breeding time.October 16 surveyed to paddy rice theory and produced, 20% furans sulphur humulone
S-metolachlor 288~960g of SE a.i./hm2Handle the amount of increase in production handled compared with blank control be respectively 66.1%,
70.0%th, 54.1%, 51.5%, 45.1%.
Consider from efficient, economic, safe and environment-friendly angle, it is believed that, 20% furans sulphur humulone essence isopropyl first grass
The Optimum that amine SE prevents and kill off the south of the lower reaches of the Yangtze River direct seading rice field weed is 288~384g a.i./hm2, i.e., commodity consumption 60~
80ml/667m2.The key for making good use of 20% furans sulphur humulone S-metolachlor SE is that even spraying and holding field are moistened,
Spraying time should be rested in after rice growing 5~10 days.
The herbicidal effect of the antagonism weeds of embodiment 6
Hunan area large area since the nineties prevents and kill off barnyard grass in paddy field using dichloro quinolinic acid, bispyribac-sodium, so far
There are 20 year.The dichloro quinolinic acid of peasant household's reaction in recent years, penoxsuam are declining year by year to the preventive effect of barnyard grass.From
We detect barnyard grass in paddy field on Yuanjiang, Nan County, Hanshou and other places to dichloro quinolinic acid, bispyribac-sodium, penoxsuam etc. within 2013
Kill barnyard grass agent and produce serious resistance.Barnyard grass in paddy field is serious in above-mentioned area harm, in order to find it is safe and efficient remove barnyard grass agent, I
Begun through from 2014 indoor measurement carry out primary dcreening operation, then the effective herbicide kind of the antagonism barnyard grass of primary dcreening operation is moved to
Field plot trial, filters out the preferable medicament of antagonism barnyard grass.
Experiment is located at Changsha County village of the Temple of the Dragon King, 1.2 mu of testing ground area, for examination paddy rice in live, water on April 5th, 2016
Rice application rate is 7.5 thousand grams/acre, and will uniform sowing is in each cell after resistance barnyard grass presprouting of seeds, application rate is 8 grams/small
Area.Other management are consistent with large area.
Test medicine
20% furans sulphur humulone S-metolachlor suspension emulsion (10%+10%)
40% 5 fluorine butachlor suspension emulsion The Dow Agrosciences, LLC. produces, purchased in market
The dispersible oil-suspending agent The Dow Agrosciences, LLC. production of 60 g/l of five fluorine cyhalofop-butyl, it is purchased in market
The dispersible oil-suspending agent The Dow Agrosciences, LLC. of 25 g/l of penoxsuams, it is purchased in market
The Japanese Kumiai Chemical Industry Co., Ltd.'s production of 100 g/l of bispyribac-sodium suspending agents, it is purchased in market
10% Fu Meishi companies of metamifop missible oil Jiangsu Province Suzhou produce, purchased in market
Table 4-1 reagent agent experimental designs
Plot area：22m2Number of repetition：3 times.Cell is arranged：
| A | G | C | E | F | B | D |
| B | E | A | F | D | G | C |
| C | D | G | B | A | E | F |
1-2 days backwater after draining before spray-on process dispenser, medicine, medicine, it is to avoid flood rice shoot lobus cardiacus, keep shoaling layer 5-7 days.Apply
Medicine apparatus：Back carried hand compression sprayer.Dispenser on April 28 is once；Per hectare sprays 450 liters of amount of liquid medicine.Crop and target
Growth period：Rice shoot 2-3 leaf phases, barnyard grass 2-3 leaf phases, moleplant seed 1-3 leaf phases.Do not killed during experiment using other herbicides and desinsection
Microbial inoculum.
Investigate, investigate 2 times altogether respectively at 20d, 40d after medicine.Using 5 points of samplings of diagonal, every 0.25 ㎡ of investigation, difference
All kinds of weeds strain numbers are counted, weeds of being chosen after last investigation cut off its underground part, claim its overground part fresh weight.Estimate rice seedling leaf color
And growing way, record symptom of chemical damage and grade.
Drug effect computational methods：
Preventive effect (%)=[(CK-PT)/CK] × 100
The careless number (or fresh weight) of PT- treatment regions remaining；
The careless number (or fresh weight) of CK- blank districts work.
The the 20th and 40 day investigation poisoning situation, is investigated 2 times altogether after medicine.
As a result with analysis
20 days after table 4-2 medicines
40 days after table 4-3 medicines
Statistical methods for experiment：Deng Kenshi multiple range tests (DMRT).
Result of the test shows：20% furans sulphur humulone S-metolachlor suspension emulsion not only antagonism barnyard grass preventive effect
More than 90%, and to moleplant seed preventive effect significantly, to total careless preventive effect more than 95%.Treatment agent C antagonism barnyard grass preventive effects
Although not good enough to other Weed-control effects more than 90% yet.
Claims (10)
1. a kind of binary Herbicidal combinations, it is characterised in that including herbicidal active component isopropyl methoxalamine and furans sulphur humulone, two
The weight ratio of person is 1：0.1~5.
2. Herbicidal combinations according to claim 1, it is characterised in that active component isopropyl methoxalamine and furans sulphur humulone
Weight compare 1：0.2~4, at least 90% is S-metolachlor in the isopropyl methoxalamine.
3. Herbicidal combinations according to claim 2, it is characterised in that active component isopropyl methoxalamine and furans sulphur humulone
Weight compare 1：0.5~3.
4. herbicidal composition according to claim 3, it is characterised in that active component isopropyl methoxalamine and furans sulphur grass
The weight of ketone compares 1：0.7~3.
5. herbicidal composition according to claim 1, it is characterised in that active component isopropyl methoxalamine and furans sulphur grass
The weight of ketone compares 1：0.9~1.1, at least 90% is S-metolachlor in the isopropyl methoxalamine.
6. herbicidal composition according to claim 5, it is characterised in that also include safety in the Herbicidal combinations
Agent, one or more of the safener in following compound：C1：Isoxadifen；C2：Cyclopropyl-sulfonylamide；C3：Pyrazoles
Cloquitocet_mexyl；C4：Cloquintocetmexyl；C5：Gibberellic acid；C6：Xie Cao oxazoles；C7：N- (2-2 methoxybenzoyls base) -4- [(methylaminos
Carbonyl) amino] benzsulfamide.
7. herbicidal composition according to claim 1, it is characterised in that the formulation of the Herbicidal combinations is dispersible
Oil-suspending agent, aqueous suspension agent, suspension emulsion, missible oil, water dispersible granules (dry suspending agent), aqueous emulsion, microemulsion, wettable powder,
Granule, floating granula, the weight of the active component account for the 1-60% of total amount.
8. herbicidal composition according to claim 7, it is characterised in that the Herbicidal combinations are suspension emulsion, activity
Composition isopropyl methoxalamine and furans sulphur humulone respectively account for the 8-12% of gross weight.
9. application of the herbicidal composition in terms of rice field resistant weed is prevented and kill off described in claim 1.
10. application of the herbicidal composition in terms of rice field resistant weed is prevented and kill off described in claim 1, the resistant weed is
Refer to barnyard grass.
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| CN101999355A (en) * | 2010-12-07 | 2011-04-06 | 北京颖新泰康国际贸易有限公司 | Herbicide composite, preparation and application thereof |
| CN102715186A (en) * | 2012-06-15 | 2012-10-10 | 王学权 | Synergistic weeding composition |
| CN106035331A (en) * | 2016-06-24 | 2016-10-26 | 青岛清原抗性杂草防治有限公司 | Furan sulcotrione-containing compound weeding composition |
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2017
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| CN101999355A (en) * | 2010-12-07 | 2011-04-06 | 北京颖新泰康国际贸易有限公司 | Herbicide composite, preparation and application thereof |
| CN102715186A (en) * | 2012-06-15 | 2012-10-10 | 王学权 | Synergistic weeding composition |
| CN106035331A (en) * | 2016-06-24 | 2016-10-26 | 青岛清原抗性杂草防治有限公司 | Furan sulcotrione-containing compound weeding composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109362730A (en) * | 2018-12-26 | 2019-02-22 | 北京颖泰嘉和生物科技股份有限公司 | A kind of herbicidal composition and its application |
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