CN106719731A - A kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine - Google Patents

A kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine Download PDF

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CN106719731A
CN106719731A CN201611180631.1A CN201611180631A CN106719731A CN 106719731 A CN106719731 A CN 106719731A CN 201611180631 A CN201611180631 A CN 201611180631A CN 106719731 A CN106719731 A CN 106719731A
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soybean
fomesafen
clethodim
cloransulammethyl
weeds
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龚国斌
陈克付
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Anhui Fengle Agrochemical Co Ltd
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Anhui Fengle Agrochemical Co Ltd
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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
    • 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
    • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • A01N35/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen
    • A01N35/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen containing a carbon-to-nitrogen double bond
    • 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
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/04—Sulfonic acids; Derivatives thereof
    • A01N41/06—Sulfonic acid amides

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The present invention provides a kind of soybean postemergence weed control composition of chloro-ester sulphur grass amine, and the active ingredient of the Herbicidal combinations is fomesafen, cloransulammethyl and clethodim, and the weight ratio of the fomesafen, cloransulammethyl and clethodim is 0.1 80：0.1‑80:0.1‑80.Herbicidal combinations of the present invention can prevent and kill off Soybean Field annual gramineous weed and can prevent and kill off broad leaved weed and nutgrass flatsedge again, herbicidal effect significantly, has significant synergies, and a dispenser can prevent and kill off the weeds in crop whole breeding time, it is a kind of preferable herbicide on succession crop without influence.

Description

A kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine
Technical field
The present invention relates to pesticide herbicide technical field, and in particular to a kind of soybean postemergence weed control group of chloro-ester sulphur grass amine Compound.
Technical background
Soybean is one of the important cereal crops of China and oil crops, and soybean is the most frequently used to be made various bean product, squeeze Soya-bean oil, make soy sauce and extract protein, bean dregs or wear into the soybean of meal and be also commonly used for poultry and livestock feed.The nutritive value of soybean It is very high, it is referred to as " king in beans ", " meat of Tanaka ", the cow's milk of green " " etc., it is most to receive nutrition in hundreds of natural foods It is edible that family praises highly.Also there is dietary function：1st, immunity of organism is strengthened.The soybean that 500 grams of function is containing protein equivalent to 1000 Gram lean meat or 1500 grams of eggs or 6000 milliliters of protein contents of milk, while also contain various amino acid needed by human, Important trophism is played to human tissue cell, immune function of human body can be improved；2nd, vascular sclerosis is prevented.In soya bean Lecithin can remove the cholesterol being attached on vascular wall, prevent vascular sclerosis, prevention of cardiovascular disease, cardioprotection.In soybean Lecithin also there is the effect for preventing accumulating excessive fat in liver, so as to effectively prevent and treat the fat caused by obesity Liver；3rd, skeleton development is promoted.Contain several mineral materials in soybean, supplement calcium prevents from, because of the osteoporosis that calcium deficiency causes, promoting Skeleton development, the bone growth to children, old man is extremely advantageous.4th, admittance stool.The Soluble Fiber contained in soybean, both may be used Defaecation, can reduce cholesterol again；5. resistance to iron deficiency anaemia.Not only content is more for iron in soya bean, and is easily absorbed by human body, right Hypoferric anemia has certain curative effect；6th, hypoglycemic.Containing a kind of material for pressing down pancreatin in soybean, there is therapeutic effect to diabetes.Greatly Saponin contained by beans has obvious effect for reducing blood fat, meanwhile, increased weight can be suppressed, reduce lipid content and fat in serum, liver Fat content；7th, anti-oxidant and anti-aging effects.Soyasaponins turns ammonia to caused by doxorubicin SAIT, aspartic acid The rising of enzyme can be resisted significantly, have notable protecting effect to caused by doxorubicin dead mouse.
In soybean culture, weeds are the key factors for influenceing soybean yields and quality.Weeds can be divided three classes：It is annual Grassy weed, annual broadleaf weed and perennial weeds.Wherein common main weeds species has：
Annual gramineous weed mainly has barnyard grass, green bristlegrass, setaria glauca, wild broomcorn millet, lady's-grass, wild oat etc..
Annual broadleaf weed mainly have lamb's-quarters (grey dish), Siberian cocklebur, Amaranthus retroflexus, black nightshade (black star), bog marshcress herb, acalypha copperleaf, Elscholtiza (wild perillaseed), water spine pin, wolf tail grass (ghost fork), willow leaf thorn smartweed, pale persicaria, dayflower (orchid dish), piemarker, chickweed, Purslane, salsola collina, Semen Cuscutae etc..
Perennial weeds：It is main to have meadow pine (section bone grass), sowthistle, field thistle (field thistle), setose thistle (cottonsedge-like thistle herb), reed Deng.
Soybean weedses have generation since sowing to early August.Wherein from sowing to 5 the end of month, early spring weeds are dominant Gesture, it is then dominant with annual late spring weeds since early June.Dayflower, wolf tail grass, pale persicaria, Siberian cocklebur, dragon in recent years The broad leaved weeds such as certain herbaceous plants with big flowers, bog marshcress herb, piemarker, sowthistle, field thistle, setose thistle gradually instead of the grass such as barnyard grass, wild oat, green bristlegrass Section weeds；Wherein field thistle, sowthistle, dayflower are referred to as " three dishes ", as the difficult point that soybean weedses are prevented and kill off.
Clethodim, English name:Clethodim, chemical name：(E) -2- [1- (3- chloroallyloxyaminos imino group) third Base] -5- [2- (ethylmercapto group) propyl group] -3- hydroxy cyclohexylphenyl -2- ketenes.Clethodim is foliar herbicide, is a kind of highly effective and safe, height The ACCase inhibitor of selectivity, has special efficacy, to dicotyledonous crops for most of annual and perennial grassy weed Safety.
Fomesafen, English name:Fomesafen, chemical name：(2- chloro- α, α, α-three is fluoro- to toluene oxygen for 5- Base)-N- mesyl -2- nitrobenzamides；It is mainly used in weeding after the bud of beans field, has special efficacy to preventing and kill off broad leaved weed, its work With principle absorbed by leaf portion, destroy photosynthesis.Medicament also has fine activity in soil.The compound leaf of soybean after seedling 1~3, The leaf phase of weeds 2~5, with 25% 9~20mL/100m2 of aqua, weeds cauline leaf is sprayed to water.Before seedling dispenser is better than under this dosage Pre-sowing application, has the disadvantage to have soybean certain poisoning, but recovers quickly, and soybean is not likely to produce using rear before seedling dispenser is broadcast Poisoning.
Cloransulammethyl, English name:The chloro- 2- of 3- [(fluoro- [1,2,4] triazol [5,1-c] pyrimidines of 5- ethyoxyls -7- - 2- yls) sulfonamido] methyl benzoate, it is mainly used in the spraying of Soybean Field cauline leaf and prevents and kill off broad leaved weed.Medicament through grass cutting blade, Root uptake and accumulation suppresses acetolactate synthestase (ALS) in growing point, influences the synthesis of protein, make weeds stop growing and It is dead.Cloransulammethyl has preferable preventive effect to early soybean field broad leaved weed dayflower, smartweed, artemisiifolia, to bitter dish, lettuce Mai Dish has stronger inhibitory action.
Through the one hundred magnitude patent network retrieval for rising patent network, SOOPAT, patent, China Patent No. is 201010525918.X's Disclose fomesafen and clethodim soybean field herbicide in patent, but the complex weedicide to " three dishes " field thistle, dayflower, Sowthistle, effect is bad.The patent No. CN201410500331.1 of Nanjing Huazhou Pharmaceutical Co., Ltd.'s application discloses a kind of bag Include the mixed herbicide and preparation method of cloransulammethyl and clethodim.But the complex weedicide easily produces poisoning to soybean.
The content of the invention
It is an object of the invention to provide a kind of Soybean Field postemergence weed control composition of chloro-ester sulphur grass amine, it can prevent and kill off standing grain Undergraduate course weeds, can prevent and kill off broad leaved weed and nutgrass flatsedge, and the compound herbicide for soybean seedlings for working well again, and to when stubble and after stubble The complex weedicide of crop safety.
In order to realize foregoing invention purpose, the present invention provides following technical scheme：
A kind of soybean postemergence weed control composition of chloro-ester sulphur grass amine, the active ingredient of the Herbicidal combinations is fluorine sulfanilamide (SN) Careless ether, cloransulammethyl and clethodim, the weight ratio of the clethodim is 0.1-80：0.1-80:0.1-80.
Preferably, the weight ratio of the fomesafen, cloransulammethyl and clethodim is 12-24：1.6-0.4：2-10. It is further preferred that the weight ratio of the fomesafen, cloransulammethyl and clethodim is 16：1.2：6.
The quality of the fomesafen, cloransulammethyl and clethodim and account for the 0.3 of the Herbicidal combinations gross mass ~85%.
The formulation of the Herbicidal combinations is suspending agent, suspension emulsion, missible oil, microemulsion, aqueous emulsion, wettable powder or water The formulations of pesticide such as dispersible granule.
The synergy after mixture is evaluated with the co-toxicity coefficient method of Sun Yunpei, fomesafen, chlorine ester sulphur grass is as a result shown Three kinds of active components of amine and clethodim press 12-24：1.6-0.4：The co-toxicity coefficient of 2-10 ratios compounding is significantly greater than 120, reaches Notable synergistic effect, illustrates fomesafen, three kinds of active components of cloransulammethyl and clethodim to grassy weed and broad-leaved Weeds and nutgrass flatsedge have significant synergies.
The experiment of the Security test of soybean is shown, fomesafen, three kinds of active components of cloransulammethyl and clethodim Compounding cauline leaf process, suppress the ED of soybean growth 10%10=1329.4485, suppress the ED of weed growth 90%90= 333.6818, selectivity factor=1329.4485/333.6818=3.98>2, it is believed that the medicament has obvious selectivity, fluorine Sulfanilamide (SN) grass ether, three kinds of active components of cloransulammethyl and clethodim have good security to soybean.
Herbicidal combinations of the invention were shown by the field control effectiveness test of 2 years, in the compound leaf phase of soybean 2~3, weeds 2-5 Leaf does not wait the phase, and soybean has no symptom of chemical damage from dispenser to maturity period, to soybean safety.80 milliliter/mu of preventive effect of weeds reaches for 10 days To more than 75.6%, more than 90.5% is reached within 30 days, with the increase of dosage, preventive effect is remarkably reinforced, in the milli of Soybean Field 100 Liter/mu is that can reach good herbicidal effect, is compared with one of which active ingredient is used alone, and herbicide controlling spectrum is expanded, to standing grain Undergraduate course weeds, broad leaved weed and nutgrass flatsedge have obvious synergistic effect.Dispenser can be controlled in crop whole growth period Weeds, not only herbicidal effect is notable, and environmentally friendly, on second stubble crop without influence.
Compared with prior art, Herbicidal combinations of the present invention can prevent and kill off grassy weed, and it is miscellaneous to prevent and kill off broad-leaved again Grass and nutgrass flatsedge, to soybean safety, and on succession crop without influence, have a good application prospect.
Specific embodiment
The invention discloses a kind of soybean after seedling containing fomesafen, three kinds of active components of cloransulammethyl and clethodim Herbicidal combinations, those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.In particular It is that all similar replacements and change are apparent to those skilled in the art, they are considered as being included in this Invention.Product of the invention and application are described by preferred embodiment, and related personnel can substantially not depart from this Method described herein and application be modified in the content of the invention, spirit and scope or suitably change with combining realizing and Using the technology of the present invention.
With reference to embodiment, the present invention is expanded on further：
Embodiment 1：17% fomesafen cloransulammethyl clethodim dispersibles oil-suspending agent (fomesafen： Cloransulammethyl：Clethodim=12：0.6：4.4)
Take 12kg fomesafens, 0.6kg cloransulammethyls, 4.4kg clethodims, 8kg dispersants-block polyether it is non-from Sub- surfactant (Pluronic125), 5kg wetting agents-propane diols, 0.5kg disintegrants-xanthans, 1kg binding agents-first Esterified vegetable oil, carrier soybean oil 49.5kg.By being sufficiently mixed allotment, ball mill grinding, adjusting, be packaged to be that to dispersible oil outstanding Floating agent.
Embodiment 2：31% fomesafen cloransulammethyl clethodim EC (fomesafen：Cloransulammethyl： Clethodim=24：0.4:6.6)
Take 24kg fomesafens, 0.4kg cloransulammethyls, 6.6kg clethodims, emulsifying agent-APES 5.0%, emulsifying agent-dodecyl sodium sulfate 5.0%, solvent-low naphthalene solvent naphtha complements to 100.It is adequately mixed, stirs, i.e., Can obtain homogeneous missible oil.
Embodiment 3：35% fomesafen cloransulammethyl clethodim water dispersible granules (fomesafen：Chlorine ester Sulphur grass amine：Clethodim=24：1:10)
Take 24kg fomesafens, 1kg cloransulammethyls, 10kg clethodims, 7kg dispersants-naphthalene sulphonate formaldehyde condensation The mixture (EFW) of thing (D-425), 5kg wetting agents-alkylnaphthalene sulfonate and anion wetting agent, 5kg disintegrants-sulfuric acid Ammonium, 2kg binding agents-polyvinyl alcohol (PVA), carrier kaolin 25kg.Be adequately mixed, air-flow crushing, mixing, granulation, drying And screening obtains water dispersible granules.
Embodiment 4：63.2% fomesafen cloransulammethyl clethodim water dispersible granules (fomesafen：Chlorine Ester sulphur grass amine：Clethodim=40：3.2:20=20:1.6:10)
Take 40kg fomesafens, 3.2kg cloransulammethyls, 20kg clethodims, 7kg dispersants-naphthalene sulphonate formaldehyde contracting The mixture (EFW) of compound (D-425), 5kg wetting agents-alkylnaphthalene sulfonate and anion wetting agent, 5kg disintegrants-sulphur Sour ammonium, 2kg binding agents-polyvinyl alcohol (PVA), carrier kaolin 17.8kg.Be adequately mixed, air-flow crushing, mixing, granulation, Dry and screening obtains water dispersible granules.
Embodiment 5：55% fomesafen cloransulammethyl clethodim wettable powder (fomesafen：Chlorine ester Sulphur grass amine：Clethodim=19.2：0.8:7)
Take 19.2kg fomesafens, 0.8kg cloransulammethyls, 7kg clethodims, 4kg dispersants NNO, 3kg wetting agent K12,4kg White Carbon black, precipitated calcium carbonate complement to 100kg.Be adequately mixed, air-flow crushing, mixing, obtain wettable powder.
Embodiment 6：23.2% fomesafen cloransulammethyl clethodim dispersibles oil-suspending agent (fluorine sulfanilamide (SN) grass Ether：Cloransulammethyl：Clethodim=16：1.2:6)
Take 16kg fomesafens, 1.2kg cloransulammethyls, 6kg clethodims, 8kg dispersants-block polyether nonionic Surfactant (Pluronic125), 5kg wetting agents-propane diols, 0.5kg disintegrants-xanthans, 1kg binding agents-methyl esters Change vegetable oil, carrier soybean oil 62.3kg.By being sufficiently mixed allotment, ball mill grinding, adjusting, be packaged to be and dispersible oily suspension Agent.
Embodiment 7：Fomesafen, cloransulammethyl and clethodim cauline leaf process synergy toxicity determination test Report
Under greenhouse experiment, using pot-culture method, research fomesafen, cloransulammethyl and clethodim ternary are multiple The herbicidal effect matched somebody with somebody, and the synergy type after three's different proportion is used with is evaluated with the co-toxicity coefficient method of Sun Yunpei, it is fluorine The rational mixture of sulfanilamide (SN) grass ether, cloransulammethyl and clethodim provides scientific basis.
For studying thing soybean varieties：Dragon selects No. 1
For examination weeds lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green bristlegrass (Setaria Viridis (L.) Beauv.), acalypha copperleaf (Acalypha australis L.), dayflower (Commelina communis), Lamb's-quarters (Chenopodium album L.), sowthistle (Sonchus brachyotus DC.) difformed galingale herb (Cyperus Difformis L.) (field harvesting upper one year seed, germination percentage is more than 85%).
The fomesafen active compound (Jiangsu Changqing Agricultural Chemistry Co., Ltd.) of reagent agent 95%；98% cloransulammethyl Active compound (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.)；95% clethodim technical pesticide (Jiangsu Qi Zhou green chemical industries Limited company).
Weigh quantitative active compound with electronic balance, add appropriate emulsifying agent, with acetone solution, finally with 0.1% soil Above-mentioned active compound is diluted to required concentration by warm 80 aqueous solution.
The synergy of fomesafen and cloransulammethyl
Fomesafen, cloransulammethyl single dose and 5 fomesafens and cloransulammethyl mixture preparation are set 5 respectively Individual dosage, separately sets blank, and each test process is repeated 4 times.Treatment agent dosage refers to table 1.
The test process of table 1 and test level (consumption g a.i./667 ㎡)
Fomesafen cloransulammethyl mixture, clethodim single dose and 5 mixture preparations are set into 5 dosage respectively, separately If blank, each test process is repeated 4 times.Treatment agent dosage refers to table 2.
The test process of table 2 and test level (concentration g a.i./667 ㎡)
In the leaf phase of soybean 3, weeds 2-4 leaf phase cauline leaf spraying treatments.Test was carried out at reagent spray on June 5th, 2015 Reason, dispenser 1 time.The damage symptoms of record soybean and weeds, 20d after medicine in detail after dispenser, carry out fresh weight measurement, and with compare place Reason compares, and calculates fresh weight preventive effect.
Synergy type of the result of the test with the co-toxicity coefficient method evaluation of Sun Yunpei after mixed.According to SUN, Y-P (Sun Yun It is abundant) method calculates its actual toxicity index, mixture theoretical toxicity index, co-toxicity coefficient.With log concentration as X, pest and disease damage preventive effect machine Rate value is Y, seeks regression equation.
Actual toxicity index=standard agent LD50The LD of/mixture50×100
Theoretical toxicity index=∑ the percentage of the medicament active ingredient (toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
With fomesafen, clethodim as standard agent in experiment.The synergy of fomesafen and cloransulammethyl With fomesafen as standard agent；Both optimum proportioning and clethodim compoundings, with clethodim as standard agent.
Criterion：Co-toxicity coefficient<80 is antagonism, is summation action between 80-120,>120 make for synergy With.
Fomesafen is as shown in table 3 below with the synergy of cloransulammethyl：
The fomesafen of table 3 and cloransulammethyl mixture, fresh weight preventive effects of the 20d to weeds after medicine
Prevention effect is four average values of data in table.
The toxic action situation and preventive effect of fomesafen, cloransulammethyl and Mixed Pharmacy to weeds as shown in Table 3.It is logical Cross formula and calculate its respective virulence regression equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 4。
Table 4：Fomesafen and synergy of the cloransulammethyl mixture to weeds
Treatment Regression equation Coefficient correlation LD50 Actual toxicity index Theoretical toxicity index Coefficient of synergism
A Y=1.7655x+3.1546 0.9957 11.0986 100 / /
B Y=1.4295x+4.7342 0.9963 1.5345 723.27 / /
C Y=1.8464x+3.7335 0.9962 4.8519 228.75 224.65 101.83
D Y=1.9388x+3.8206 0.9982 4.0581 273.49 173.33 157.79
E Y=1.9624x+3.8590 0.9982 3.8143 290.97 143.48 202.79
F Y=1.8464x+3.7629 0.9962 4.6772 237.29 123.97 191.41
G Y=1.8246x+3.6988 0.9955 5.1657 214.85 110.22 194.93
From experiment, the co-toxicity coefficient for processing C, D, E, F, G is respectively：101.83、157.79、202.79、191.41、 194.93, wherein, the co-toxicity coefficient of D, E, F, G presses 12-24 more than 120, i.e. fomesafen and cloransulammethyl：1.6-0.4 Ratio mixture has synergistic effect.Wherein, fomesafen presses 16 with cloransulammethyl：1.2 ratio mixtures are the most suitable, to wealthy Leaf weeds and nutgrass flatsedge have significant synergies.
Fomesafen cloransulammethyl is as shown in table 5 below with the synergy of clethodim：
The fomesafen cloransulammethyl of the table 5 fresh weight preventive effect to weeds mixed with clethodim
Prevention effect is four average values of data in table.
As shown in Table 5：Toxic action situation and preventive effect of each medicament to weeds.Its respective virulence is calculated by formula to return Return equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 6.
Table 6：Indoor virulence and joint of the cloransulammethyl clethodim mixed ratio different from fomesafen to weeds Effect
Treatment Regression equation Coefficient correlation LD50 Actual toxicity index Theoretical toxicity index Coefficient of synergism
A Y=1.9624x+3.8590 0.9982 3.8143 109.56 / /
B Y=1.2298x+4.2362 0.9922 4.1790 100 / /
C Y=1.6775x+4.3842 0.9949 2.3285 179.47 105.44 170.21
D Y=1.7310x+4.5564 0.9979 1.8040 231.65 106.26 218.00
E Y=1.9718x+4.7577 0.9979 1.3270 314.92 107.09 294.07
F Y=1.7282x+4.6353 0.9947 1.6256 257.07 107.91 238.23
G Y=1.7424x+4.5222 0.9975 1.8803 222.25 108.74 204.39
From experiment, the co-toxicity coefficient for processing C, D, E, F, G is respectively：170.21、218.00、294.07、238.23、 204.39, co-toxicity coefficient is all higher than 120, and the co-toxicity coefficient with synergistic effect, particularly E is maximum, reaches notable synergistic effect.
I.e. fomesafen, three kinds of active components of cloransulammethyl and clethodim are 12-24 by weight：1.6-0.4：2- 10 are compounded, and annual single broadleaf weed is had significant synergies.Wherein fomesafen, cloransulammethyl and Clethodim with:16：1.2：The co-toxicity coefficient of 6 part by weight compounding is maximum, and herbicidal effect is best.
Embodiment 8：Security indoor measurement of the fomesafen cloransulammethyl clethodim cauline leaf process to soybean Test report
Under greenhouse experiment, using pot-culture method, research fomesafen, cloransulammethyl and clethodim ternary are multiple With cauline leaf process to the security of soybean, for the rational mixture of fomesafen, cloransulammethyl and clethodim provide science according to According to.
For studying thing soybean varieties：Dragon selects No. 1
For examination weeds lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green bristlegrass (Setaria Viridis (L.) Beauv.), acalypha copperleaf (Acalypha australis L.), dayflower (Commelina communis), Lamb's-quarters (Chenopodium album L.), sowthistle (Sonchus brachyotus DC.) difformed galingale herb (Cyperus Difformis L.) (field harvesting upper one year seed, germination percentage is more than 85%).
The fomesafen active compound (Jiangsu Changqing Agricultural Chemistry Co., Ltd.) of reagent agent 95%；98% cloransulammethyl Active compound (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.)；95% clethodim technical pesticide (Jiangsu Qi Zhou green chemical industries Limited company).
Weigh quantitative active compound with electronic balance, add appropriate emulsifying agent, with acetone solution, finally with 0.1% soil Above-mentioned active compound is diluted to required concentration by warm 80 aqueous solution.
In the leaf phase of soybean 3, the dispenser of weeds 2-4 leaf phase cauline leaf spraying treatments 1 time.After dispenser, investigate each processed soybeans whether there is Symptom of chemical damage, records symptom of chemical damage, grade in detail if having, and 20 days after medicine, measures each processed soybeans fresh weight, calculates fresh weight and suppresses Rate, with clear and definite test medicine to the security of soybean.After dispenser simultaneously in detail record weeds damage symptoms (such as growth inhibition, Chlorosis, deformity etc.), in 20 days after medicine, each treatment weeds aerial part fresh weight is weighed, calculate the fresh weight preventive effect of weeds.
Regression analysis is carried out to the logarithm value of drug dose and the niqueMin of soybean fresh weight inhibition with DPS softwares, is calculated Dosage ED when coefficient correlation and suppression crop 10%10, and suppress weeds 90%ED90, obtain selectivity index.
Selectivity index=ED10/ED90
Observe within 5 days after dispenser, the 23.2% fomesafen cloransulammethyl clethodim OD's prepared with embodiment 6 High concentration 2320mg/kg (4 times of recommended dose high dose) process part soybean leaves are burnt spot, and lobus cardiacus is normal, and plant height is just Often, recommended dose and its amount processed soybeans growing way is normal again, does not distinguish significantly with blank treatment.
The activity of weeding of table 7 and crop safety ocular estimate evaluation criterion
Inhibitory action of the fomesafen cloransulammethyl clethodim OD of table 8 23.2% to soybean
Fresh weight preventive effects of the fomesafen cloransulammethyl clethodim OD of table 9 23.2% to weeds
As shown in Table 9：The medicament calculates its each toxicity regression to the toxic action situation and preventive effect of weeds by formula Equation, LD50, it is listed in table 10.
Table 10：Virulence regression equation and LD50
Treatment Regression equation Coefficient correlation LD50 95% confidential interval
A Y=-0.6047+2.7290x 0.9974 113.1706 104.1197~123.0082
As shown in Table 10：The LD of 23.2% fomesafen cloransulammethyl clethodim OD50For：113.1706, 95% confidential interval is 104.1197-123.0082.
By table 2, table 3,10% ED can be grown in the hope of suppression soybean by DPS softwares10=1329.4485, suppress miscellaneous The ED of grass growth 90%90=333.6818, selectivity factor=1329.4485/333.6818=3.98>2, it is believed that the medicament has There is obvious selectivity, to soybean safety.
Embodiment 9：Field control effectiveness test
Complex weedicide of the present invention was shown by the field control effectiveness test of 2 years, in the leaf phase of soybean 3~5, weeds 1~5 Leaf does not wait the phase, the 23.2% fomesafen cloransulammethyl clethodim OD (16% prepared using embodiments of the invention 6 The clethodim of the cloransulammethyl of fomesafen+1.2%+6%) milliliter/mu of dosage 80,100,120,200, be watered 40 kilograms/ Mu is sprayed, 10,30 days and maturity period range estimation soybean security and Weed-control effect, all preventive effects is surveyed within 10,30 days, as a result such as following table：
Note：Data are strain number in blank control group in table, and other each processing datas are preventive effect (%)
By range estimation, soybean has no symptom of chemical damage from dispenser to maturity period, to soybean safety.80 milliliters of the preventive effect of weeds/ Mu reaches more than 75.6% for 10 days, reaches more than 90.5% within 30 days, and with the increase of dosage, preventive effect is remarkably reinforced, in soybean Milliliter/mu of field 100 can reach good herbicidal effect, compare with one of which active ingredient is used alone, and expand herbicide Spectrum, has obvious synergistic effect to grassy weed, broad leaved weed and nutgrass flatsedge.Dispenser can control crop entirely to grow Weeds in phase, not only herbicidal effect is notable, and environmentally friendly, and on second stubble crop without influence, the pollution to environment is small, right People, animal, birds and beneficial organism safety, are conducive to keeping ecological balance.In addition, herbicide of the invention is added using physical method Work, simple production process, three-waste free discharge in production process has no adverse effects to ecological environment.It is preferable current prevention effect Complex weedicide.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (5)

1. the soybean postemergence weed control composition of a kind of chloro-ester sulphur grass amine, it is characterised in that：The Herbicidal combinations activity into Part is fomesafen, cloransulammethyl and clethodim, and the weight ratio of the fomesafen, cloransulammethyl and clethodim is 0.1-80：0.1-80:0.1-80.
2. soybean postemergence weed control composition according to claim 1, it is characterised in that：The fomesafen, chlorine ester sulphur The weight ratio of careless amine and clethodim is 12-24：1.6-0.4：2-10.
3. soybean postemergence weed control composition according to claim 2, it is characterised in that：The fomesafen, chlorine ester sulphur The weight ratio of careless amine and clethodim is 16：1.2：6.
4. soybean postemergence weed control composition according to claim 1, it is characterised in that：The fomesafen, chlorine ester sulphur The quality of careless amine and clethodim and account for the 0.3~85% of the Herbicidal combinations gross mass.
5. soybean postemergence weed control composition according to claim 1, it is characterised in that：The formulation of the Herbicidal combinations is Suspending agent, suspension emulsion, missible oil, microemulsion, aqueous emulsion, wettable powder or water dispersible granules.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859224A1 (en) * 1998-12-21 1999-05-06 Novartis Ag Synergistic herbicidal composition for selective weed control
CN101971804A (en) * 2010-11-01 2011-02-16 张瑜 Fomesafen and clethodim weedicide for soybean fields
CN102986688A (en) * 2012-12-20 2013-03-27 联保作物科技有限公司 Soybean field weeding composition and preparation thereof
CN104351216B (en) * 2014-09-25 2016-05-04 南京华洲药业有限公司 A kind of mixed herbicide and preparation method who comprises cloransulammethyl and clethodim

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859224A1 (en) * 1998-12-21 1999-05-06 Novartis Ag Synergistic herbicidal composition for selective weed control
CN101971804A (en) * 2010-11-01 2011-02-16 张瑜 Fomesafen and clethodim weedicide for soybean fields
CN102986688A (en) * 2012-12-20 2013-03-27 联保作物科技有限公司 Soybean field weeding composition and preparation thereof
CN104351216B (en) * 2014-09-25 2016-05-04 南京华洲药业有限公司 A kind of mixed herbicide and preparation method who comprises cloransulammethyl and clethodim

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Application publication date: 20170531