CN106665611A - Postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for millet seedling - Google Patents
Postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for millet seedling Download PDFInfo
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- CN106665611A CN106665611A CN201611100415.1A CN201611100415A CN106665611A CN 106665611 A CN106665611 A CN 106665611A CN 201611100415 A CN201611100415 A CN 201611100415A CN 106665611 A CN106665611 A CN 106665611A
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- florasulam
- chlorine
- millet
- garagard
- monooctyl ester
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—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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- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
-
- 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
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
Abstract
The invention discloses a postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for a millet seedling. Active components of the weeding composition are ternary effective components of the 2-methyl-4-chloro-phenoxyacetic acid isooctyl, the florasulam and the terbuthylazine, wherein the weight ratio of the 2-methyl-4-chloro-phenoxyacetic acid isooctyl to the florasulam to the terbuthylazine is (0.1 to 70):(0.1 to 70):(0.1 to 80). The weeding composition disclosed by the invention can be used for preventing and killing annual gramineous weeds of a millet field, broadleaf weeds and cyperus rotundus, and has the advantages of remarkable weeding effect, obvious synergism and no influence on succeeding crops; in addition, by one-time pesticide application, weeds within the whole growth period can be prevented and killed; the weeding composition is an ideal weedicide.
Description
Technical field
The present invention relates to pesticide herbicide technical field, and in particular to a kind of different monooctyl ester of the chlorine containing 2 first 4, florasulam and
The millet postemergence weed control compositionss of Garagard.
Technical background
Millet, i.e. foxtail millet.Big terraneous crops are varied, but are referred to as " grain rice ", it is seen that paddy is in agricultural
The weight in status.Millet grinds the Semen setariae for, and has brought up the ancient Chinese nation.Millet because rich in proteins, vitamin B2, nicotinic acid,
The nutritions such as calcium, ferrum, by the pro-gaze of more and more people.According to《Compendium of Materia Medica》Record：" support kidney qi, removes spleen pathogenic heat in the stomach, benefit
Gas.Chen Zhe：Hardship, trembles with fear.Control gastric heat to quench one's thirst, diuresis." cure mainly：Dysentery, except spleen pathogenic heat in the stomach, diuresis, can be controlled with support kidney qi.Mill
Can detoxify into powder, only cholera.Do the edible qi-restoratives that can whet the appetite of medicated porridge.Not only there is health effect：The bodies such as suitable the old and the children
Weakling nourishes.With eat often Semen setariae can also blood pressure lowering, prevent and treat dyspepsia, brain-strengthening of enriching blood, it is sleeping the effects such as.Can also mitigate
Wrinkle, mottle, pigmentation, there is beauty.
Millet abnormal smells from the patient is salty, be slightly cold, nontoxic.In China, the existing long history in 7000 of cultivation of paddy.But blemish in an otherwise perfect thing
That paddy is always a kind of nice low-yielding crop, per mu yield only it is a hundred or so come jin.Through the unremitting effort of several generations scientist, utilize
The new varieties that crossbreeding technology is cultivated, in October, 2010 confused flour beetle has been up to 843 kilograms in Shanxi Province.
At present, millet herbicide is of less types, wherein prevent and kill off the representative kind of millet field weed have monosulfmeturon,
2,4-D butyl esters and prometryn etc..Other herbicide great majority are unsafe to millet.
It is sulfonamidess superelevation effective herbicide that florasulam is one kind, and for wheat paddock broad leaved weed is prevented and kill off.Weed control spectrum
Extensively, the most of broad leaved weeds of wheatland can be prevented and kill off, including the difficult anti-weeds such as Herba Galii Teneri, corn gromwell, and to being most difficult to what is prevented and kill off in wheatland
Herba Euphorbiae Helioscopiae has extraordinary inhibitory action.Inner-adsorption conduction-type herbicide, can conduct to weeds Herb, thus herbicide is thoroughly, will not
Recurrence.Efficacy stability at low temperature, even still ensuring that stable drug effect at 2 DEG C.There is presently no for preventing and treating millet field
The report of broad leaved weed.
At present, Shanggezhilu Biosciences Co., Ltd., Shaanxi's identified patent applications CN201310083527.0 patent
In disclose the wheat paddock compounding patent of the different monooctyl ester of the chlorine of 2 first 4 and florasulam effective ingredient；Agriculture heart crop science and technology in Shaanxi is limited
Disclose a kind of containing florasulam, fluroxypyr and 2 first 4 in the patent of the CN201310040708.5 of company's application
The wheat paddock compounding patent of the different monooctyl ester of chlorine.The two effective patents are not all mentioned can be used in millet field.
Although millet and Semen Tritici aestivi are all gramineous crop, but both sensitivitys to herbicide have very big difference
Not, the usable herbicide on Semen Tritici aestivi, great majority all can not be used on millet.
And Garagard is triazine herbicide, for preventing and kill off most of weeds, apply before bud, also optionally prevent and kill off Citrus chachiensis Hort.
Fructus Citri tangerinae, Semen Maydiss and vineyard weeds.Mainly by the root absorption of plant, for preventing and kill off most of weeds.Apply before bud, in sorghum field
1.2~1.8kga.i./ha of consumption；Also mandarin orange, Semen Maydiss and vineyard weeds are optionally prevented and kill off.Also not used for millet field
Report.
The content of the invention
It is an object of the invention to provide one kind can prevent and kill off grassy weed, broad leaved weed and dried tuber can be prevented and kill off again, and imitate
Really good millet post-emergence complex weedicide, and to when the complex weedicide of stubble and succession crop safety.
In order to realize foregoing invention purpose, the present invention provides technical scheme below：
A kind of millet postemergence weed control compositionss for containing the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard, the weeding group
The active ingredient of compound is the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard, and the weight ratio of the Garagard is 0.1-70：
0.1-70:0.1-80。
Preferably, the weight ratio of the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard is 15-40：0.8-0.2：15-
40。
It is further preferred that the weight ratio of the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard is 20：0.6：20.
The quality sum of the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard accounts for Herbicidal combinations gross mass
0.5~85%.
The dosage form of the Herbicidal combinations is suspending agent, suspension emulsion, cream, microemulsion, aqueous emulsion, wettable powder or water
Dispersible granule.
The synergy after mixture is evaluated with the co-toxicity coefficient method of Sun Yunpei, the different monooctyl ester of the chlorine of 2 first 4, double fluorine sulphurs is as a result shown
Three kinds of active component of careless amine and Garagard press 15-40：0.8-0.2：The co-toxicity coefficient of 15-40 ratios compounding is significantly greater than 120, reaches
To notable potentiation, illustrate the different monooctyl ester of the chlorine of 2 first 4, three kinds of active component of florasulam and Garagard to annual single Shuangzi
Leaf weeds and dried tuber have significant synergies.
The test of the Security test of millet is shown, three kinds of activity of the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard into
Divide compounding cauline leaf process, suppress the ED of Growth of Millet 10%10=2989.8855, suppress the ED of weed growth 90%90=
575.3134, selectivity factor=2989.8855/575.3134=5.20>2, it is believed that the medicament has an obvious selectivity, 2
The different monooctyl ester of the chlorine of first 4, three kinds of active component of florasulam and Garagard have good safety to millet.
The Herbicidal combinations of the present invention were shown by the field control effectiveness test of 2 years, in the leaf phase of millet 3~5, weeds 2-5 leaves
The phase is not waited, millet has no symptom of chemical damage from dispenser to period of maturation, to millet safety.The preventive effect 60 gram/acre of weeds reaches for 10 days
More than 75.3%, reach more than 90.5% within 30 days, with the increase of dosage, preventive effect is remarkably reinforced, and in millet field, 80 grams/acre are
Good herbicidal effect is can reach, is compared with one of which effective ingredient is used alone, expand weed control spectrum, it is miscellaneous to grass family
Grass, broad leaved weed and dried tuber have obvious potentiation.Dispenser can control the weeds in the whole trophophase of crop, no
Only herbicidal effect is notable, and environmentally friendly, on second stubble crop without impact.
Compared with prior art, Herbicidal combinations of the present invention can prevent and kill off grassy weed, can prevent and kill off broad-leaved again miscellaneous
Grass and dried tuber, to millet safety, and on succession crop without impact, have a good application prospect.
Specific embodiment
The invention discloses a kind of contain the different monooctyl ester of the chlorine of 2 first 4, the millet Seedling of three kinds of active component of florasulam and Garagard
Herbicidal combinations afterwards, those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.Specifically
, all similar replacements and change it is apparent to those skilled in the art, they are considered as being included in
The present invention.The product of the present invention and application have been described by preferred embodiment, related personnel substantially can without departing from
Present invention, spirit and scope are interior to be modified to method described herein and application or suitably changes with combining to realize
With apply the technology of the present invention.
With reference to embodiment, the present invention is expanded on further：
Embodiment 1：The different monooctyl ester florasulam Garagard of the chlorine of 36%2 first 4 dispersibles oil-suspending agent, and (chlorine of 2 first 4 is different pungent
Ester：Florasulam：Garagard=15：0.6：20.4)
The different monooctyl ester of the chlorine of 15kg2 first 4 is taken, 0.6kg florasulams, 20.4kg Garagards, 8kg dispersants-block polyether is non-
Ionic surface active agent (Pluronic125), 5kg wetting agent-Propylene Glycol, 0.5kg disintegrating agents-xanthan gum, 1kg binding agents-
Methylated vegetable oil, carrier soybean oil 49.5kg.Through being sufficiently mixed allotment, ball mill pulverizing, adjusting, be packaged to be and dispersible oil
Suspending agent.
Embodiment 2：Different monooctyl ester florasulam Garagard suspending agent (the different monooctyl ester of the chlorine of 2 first 4 of the chlorine of 45%2 first 4：Double fluorine
Sulphur grass amine：Garagard=20：0.2:24.8)
Take the different monooctyl ester of the chlorine of 20kg2 first 4,0.2kg florasulams, 24.8kg the Garagards, (dispersion of 8kg sodium lignin sulfonates
Agent), 5kg fatty alcohol-polyoxyethylene ether (wetting agent), 1kg xanthan gum (thickening agent), 2kg Polyethylene oxide polyoxy propanol amidogen ethers (disappear
Infusion), 5kg ethylene glycol (antifreezing agent), carrier water 34kg.Through being sufficiently mixed allotment, ball mill pulverizing, adjust, be packaged to be it is outstanding
Floating agent.
Embodiment 3：Different monooctyl ester florasulam Garagard water dispersible granules (the different monooctyl ester of the chlorine of 2 first 4 of the chlorine of 56%2 first 4：
Florasulam：Garagard=25：0.4:30.6)
Take the different monooctyl ester of the chlorine of 25kg2 first 4,0.4kg florasulams, 30.6kg Garagards, 7kg dispersants-naphthalene sulfonate first
The mixture (EFW) of aldehyde condensate (D-425), 5kg wetting agent-alkylnaphthalene sulfonate and anion wetting agent, 5kg disintegrates
Agent-ammonium sulfate, 2kg binding agents-polyvinyl alcohol (PVA), carrier Kaolin 25kg.Be adequately mixed, comminution by gas stream, mixing,
Pelletize, drying and screening obtain water dispersible granules.
Embodiment 4：Different monooctyl ester florasulam Garagard water dispersible granules (the different monooctyl ester of the chlorine of 2 first 4 of the chlorine of 75%2 first 4：
Florasulam：Garagard=34.4：0.6:40)
Take the different monooctyl ester of the chlorine of 34.4kg2 first 4,0.6kg florasulams, 40kg Garagards, 7kg dispersants-naphthalene sulfonate first
The mixture (EFW) of aldehyde condensate (D-425), 5kg wetting agent-alkylnaphthalene sulfonate and anion wetting agent, 5kg disintegrates
Agent-ammonium sulfate, 2kg binding agents-polyvinyl alcohol (PVA), carrier Kaolin 6kg.It is adequately mixed, comminution by gas stream, mixes, makes
Grain, dry and screening obtain water dispersible granules.
Embodiment 5：Different monooctyl ester florasulam Garagard wettable powder (the different monooctyl ester of the chlorine of 2 first 4 of the chlorine of 55%2 first 4：
Florasulam：Garagard=39.2：0.8:15)
Take the different monooctyl ester of the chlorine of 39.2kg2 first 4,0.8kg florasulams, 15kg Garagards, 4kg dispersant NNO, 3kg moistenings
Agent K12,4kg White Carbon black, precipitated calcium carbonate complements to 100kg.Be adequately mixed, comminution by gas stream, mixing, obtain wettable powder
Agent.
Embodiment 6：Different monooctyl ester florasulam Garagard WG (the different monooctyl esters of the chlorine of 2 first 4 of the chlorine of 40.6%2 first 4：Double fluorine sulphurs
Careless amine：Garagard=20：0.6:20)
Take the different monooctyl ester of the chlorine of 20kg2 first 4,0.6kg florasulams, 20kg Garagards, 7kg dispersants-naphthalene sulphonate formaldehyde
The mixture (EFW) of condensation substance (D-425), 5kg wetting agent-alkylnaphthalene sulfonate and anion wetting agent, 5kg disintegrating agents-
Ammonium sulfate, 2kg binding agents-polyvinyl alcohol (PVA), carrier Kaolin 40.4kg.It is adequately mixed, comminution by gas stream, mixes, makes
Grain, dry and screening obtain water dispersible granules.
Embodiment 7：The different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard cauline leaf process synergy toxicity determine examination
Test report
Under greenhouse experiment, using pot-culture method, the different monooctyl ester of the research chlorine of 2 first 4, florasulam and Garagard ternary
The herbicidal effect of compounding, 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 2
The rational mixture of the different monooctyl ester of the chlorine of first 4, florasulam and Garagard provides scientific basis.
For studying thing millet variety：Open confused flour beetle 10
For trying weeds Herba Digitariae (Digitaria sanguinalis (Linn.) Scop.), Herba Setariae Viridis (Setaria
Viridis (L.) Beauv.), Herba Acalyphae (Acalypha australis L.), Herba chenopodii (Chenopodium albumL.) is special-shaped
Dried tuber (Cyperus difformis L.) (field harvesting upper one year seed, germination percentage is more than 85%).
The different monooctyl ester active compound (Huifeng Agricultural Chemistry Co., Ltd., Jiangsu) of the chlorine of 92%2 first of reagent agent 4；98% florasulam
Active compound (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.)；97% Garagard active compound (moistens Feng Huagong in Shandong Weifang
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 desired concn by warm 80 aqueous solutions.
The synergy of the different monooctyl ester of the chlorine of 2 first 4 and florasulam：
By the different monooctyl ester of the different monooctyl ester of the chlorine of 2 first 4, florasulam single dose and 5 chlorine of 2 first 4 and florasulam mixture preparation point
5 dosage are not set, blank is separately set, each test process is repeated 4 times.Treatment agent dosage refers to table 1.
The test process of table 1 and test level (consumption ga.i./667 ㎡)
The optimal mixture of the different monooctyl ester of the chlorine of 2 first 4 and florasulam and the synergy of Garagard
The different monooctyl ester florasulam mixture of the chlorine of 2 first 4, Garagard single dose and 5 mixture preparations are set into respectively 5 dosage,
Blank is separately set, each test process is repeated 4 times.Treatment agent dosage refers to table 2.
The test process of table 2 and test level (concentration ga.i./667 ㎡)
In the leaf phase of millet 3, weeds 2-4 leaf phase stem and leaf spraying treatments.Test was carried out at reagent spray on June 5th, 2015
Reason, dispenser 1 time.The damage symptoms of itemized record millet and weeds after dispenser, 20d after medicine carries 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 rate of the medicament effective ingredient (toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
With the different monooctyl ester of the chlorine of 2 first 4, Garagard as standard agent in test.
Criterion：Co-toxicity coefficient<80 is antagonism, is summation action between 80-120,>120 are potentiation work
With.
Florasulam is as shown in table 3 below with the synergy of Garagard：
The different monooctyl ester of the chlorine of 32 first of table 4 and florasulam mixture, fresh weight preventive effects of the 20d to weeds after medicine
Prevention effect is the meansigma methodss of four data in table.
As shown in Table 3：Toxic action situation and preventive effect of the medicament to weeds.Its respective toxicity regression is calculated by formula
Equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 4.
Table 4：The different monooctyl ester of the chlorine of 2 first 4 and synergy of the florasulam mixture to weeds
| Process | Regression equation | Correlation coefficient | LD50 | Actual toxicity index | Theoretical toxicity index | Coefficient of synergism |
| A | Y=1.7655x+2.6231 | 0.9957 | 22.1972 | 100 | / | / |
| B | Y=1.4295x+5.3431 | 0.9963 | 0.5754 | 3857.70 | / | / |
| C | Y=1.9053x+3.6010 | 0.9973 | 5.4231 | 409.31 | 441.61 | 92.69 |
| D | Y=1.9388x+3.6327 | 0.9982 | 5.0726 | 437.59 | 290.27 | 150.75 |
| E | Y=1.9624x+3.6689 | 0.9982 | 4.7679 | 465.56 | 209.45 | 222.28 |
| F | Y=1.6876x+3.4786 | 0.9995 | 7.9707 | 278.48 | 149.44 | 186.35 |
| G | Y=1.6402x+3.3728 | 0.9986 | 9.8185 | 226.08 | 118.69 | 190.48 |
From test, the co-toxicity coefficient for processing C, D, E, F, G is respectively：92.69、150.75、222.28、186.35、
190.48, wherein the co-toxicity coefficient for processing D, E, F, G is more than 120, with potentiation, particularly process the co-toxicity coefficient of E most
Greatly 222.28, with notable potentiation.
By test, the different monooctyl ester of the chlorine of 2 first 4 presses 15-40 with florasulam：0.8-0.2 ratios mixture has potentiation
Effect, wherein, the different monooctyl ester of the chlorine of 2 first 4 presses 20 with florasulam：0.6 ratio mixture is the most suitable, dicotyledonous to annual list miscellaneous
Grass has significant synergies.
The different monooctyl ester of the chlorine of 2 first 4 is as shown in table 5 below with the synergy of Garagard with the optimal mixture of florasulam：
The different monooctyl ester florasulam of the chlorine of 52 first of the table 4 fresh weight preventive effect to weeds mixed with Garagard
Prevention effect is the meansigma methodss of four data in table.
As shown in Table 5：Toxic action situation and preventive effect of the medicament to weeds.Its respective toxicity regression is calculated by formula
Equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 6.
Table 6：Indoor virulence and connection of the florasulam Garagard mixed ratio different from the different monooctyl ester of the chlorine of 2 first 4 to weeds
Cooperation is used
| Process | Regression equation | Correlation coefficient | LD50 | Actual toxicity index | Theoretical toxicity index | Coefficient of synergism |
| A | Y=1.9624x+3.6689 | 0.9982 | 4.7679 | 269.03 | / | / |
| B | Y=2.0687x+2.7076 | 0.9946 | 12.8271 | 100 | / | / |
| C | Y=1.6775x+3.6696 | 0.9949 | 6.2095 | 206.57 | 135.41 | 152.55 |
| D | Y=1.7310x+3.8191 | 0.9979 | 4.8107 | 266.64 | 157.83 | 168.94 |
| E | Y=1.9718x+3.9178 | 0.9979 | 3.5387 | 362.48 | 185.76 | 195.13 |
| F | Y=1.7282x+3.8991 | 0.9947 | 4.3349 | 295.90 | 212.55 | 139.22 |
| G | Y=1.7424x+3.7800 | 0.9975 | 5.0140 | 255.83 | 227.40 | 112.50 |
From test, the co-toxicity coefficient for processing C, D, E, F, G is respectively：152.55、168.94、195.13、139.22、
112.50, co-toxicity coefficient is all higher than 80, and with addition or potentiation, the wherein co-toxicity coefficient of C, D, E, F is more than 120, has
The co-toxicity coefficient of potentiation, particularly E is maximum, reaches notable potentiation.
By above-mentioned test, the different monooctyl ester of the chlorine of 2 first 4, three kinds of active component of florasulam and Garagard are by weight
For 15-40：0.8-0.2：15-40 is compounded, and annual single broadleaf weed is had significant synergies.Wherein 2 first 4
The different monooctyl ester of chlorine, florasulam and Garagard are with 20：0.6：The co-toxicity coefficient of 20 part by weight compounding is maximum, and herbicidal effect is most
It is good.
Embodiment 8：The different monooctyl ester florasulam Garagard cauline leaf process of the chlorine of 2 first 4 in the safety room of millet to surveying
Determine test report
Under greenhouse experiment, using pot-culture method, the different monooctyl ester of the research chlorine of 2 first 4, florasulam and Garagard ternary
Safety of the compounding cauline leaf process to millet, the rational mixture for the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard provides section
Learn foundation.
For studying thing millet variety：Open confused flour beetle 10
For trying weeds Herba Digitariae (Digitaria sanguinalis (Linn.) Scop.), Herba Setariae Viridis (Setaria
Viridis (L.) Beauv.), concave head amaranth (Amaranthus ascendens Loisel.), Herba chenopodii (Chenopodium album
L.) (field harvesting upper one year seed, germination percentage is more than 85%).
The different monooctyl ester active compound (Huifeng Agricultural Chemistry Co., Ltd., Jiangsu) of the chlorine of 92%2 first of reagent agent 4；98% florasulam
Active compound (Jiangsu Agricultural Hormone Engineering Technology Research Centre Co., Ltd.)；97% Garagard active compound (moistens Feng Huagong in Shandong Weifang
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 desired concn by warm 80 aqueous solutions.
In the leaf phase of millet 3, the dispenser of weeds 2-4 leaf phase stem and leaf spraying treatments 1 time.After dispenser, investigate each process millet whether there is
Symptom of chemical damage, itemized record symptom of chemical damage, grade if having 20 days after medicine, measure each process millet fresh weight, calculate fresh weight and suppress
Rate, with safety of the clear and definite test medicine to millet.After dispenser simultaneously itemized record weeds damage symptoms (as growth inhibited,
Chlorosis, deformity etc.), 20 days after medicine, each process weeds aerial partss fresh weight is weighed, calculate the fresh weight preventive effect of weeds.
Regression analyses are carried out to the logarithm value of drug dose and the niqueMin of millet fresh weight inhibition with DPS softwares, is calculated
Dosage ED when correlation coefficient and suppression crop 10%10, and suppress weeds 90%ED90, obtain selectivity index.
Selectivity index=ED10/ED90
Observe within 5 days after dispenser, with the different monooctyl ester florasulam Garagard WG of the chlorine of 40.6%2 first 4 prepared by embodiment 6
High concentration 4060mg/kg (4 times of recommended dose high dose) process part millet lobus cardiacus albefaction, plant height is normal, recommended dose
And its again amount processes millet growing way normally, with blank process without significantly difference.
The activity of weeding of table 7 and crop safety ocular estimate evaluation criterion
Inhibitory action of different monooctyl ester florasulam green bristlegrass WG of the chlorine of 8 40.6%2 first of table 4 to millet
Fresh weight preventive effect of different monooctyl ester florasulam green bristlegrass WG of the chlorine of 9 40.6%2 first of table 4 to weeds
As shown in Table 9：Toxic action situation and preventive effect of the medicament to weeds, by formula its each toxicity regression is calculated
Equation, LD50, it is listed in table 10.
Table 10：Virulence regression equation and LD50
| Process | Regression equation | Correlation coefficient | LD50 | 95% confidence interval |
| A | Y=-1.2503+2.7290x | 0.9974 | 195.1217 | 179.5167-212.0831 |
As shown in Table 10：The LD of different monooctyl ester florasulam green bristlegrass WG of the chlorine of 42%2 first 450For：195.1217,95% puts
It is 179.5167-212.0831 that letter is interval.
By table 2, table 3, can be in the hope of the ED of suppression Growth of Millet 10% by DPS softwares10=2989.8855, suppress miscellaneous
The ED of grass growth 90%90=575.3134, selectivity factor=2989.8855/575.3134=5.20>2, it is believed that the medicament tool
There is obvious selectivity, to millet safety.
Embodiment 9：Complex weedicide field control effectiveness test of the present invention
Complex weedicide of the present invention was shown by the field control effectiveness test of 2 years, in the leaf phase of millet 3~5, weeds 1~5
Leaf does not wait the phase, different monooctyl ester florasulam green bristlegrass WG (20%2 of the chlorine of 40.6%2 first 4 prepared using embodiments of the invention 6
The different Garagard of the florasulam of monooctyl ester+0.6%+20% of the chlorine of first 4) 80,100,120,200 grams/acre of dosage, be watered 40 kilograms/
Mu is sprayed, 10,30 days and period of maturation range estimation millet safety 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, millet has no symptom of chemical damage from dispenser to period of maturation, to millet safety.80 grams/acre of the preventive effect of weeds
More than 75.3% is reached within 10 days, more than 90.5% is reached within 30 days, with the increase of dosage, preventive effect is remarkably reinforced, in millet field
100 grams/acre can reach good herbicidal effect, compare with one of which effective ingredient is used alone, and expand weed control spectrum, right
Grassy weed, broad leaved weed and dried tuber have obvious potentiation.Dispenser can be controlled in the whole trophophase of crop
Weeds, not only herbicidal effect is significantly, and environmentally friendly, and on second stubble crop without impact, the pollution to environment is little, to people,
Poultry, birds and beneficial organism safety, are conducive to keeping ecological balance.In addition, the herbicide of the present invention is processed using physical method,
Simple production process, three-waste free discharge in production process, has no adverse effects to ecological environment.It is that current prevention effect is preferably multiple
With herbicide.
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. a kind of millet postemergence weed control compositionss for containing the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard, it is characterised in that：Institute
The active ingredient for stating Herbicidal combinations is the different monooctyl ester of the chlorine of 2 first 4, florasulam and Garagard, the different monooctyl ester of the chlorine of 2 first 4, double fluorine
The weight ratio of sulphur grass amine and Garagard is 0.1-70：0.1-70:0.1-80.
2. millet postemergence weed control compositionss according to claim 1, it is characterised in that：The different monooctyl ester of the chlorine of 2 first 4, double fluorine
The weight ratio of sulphur grass amine and Garagard is 15-40：0.8-0.2：15-40.
3. millet postemergence weed control compositionss according to claim 2, it is characterised in that：The different monooctyl ester of the chlorine of 2 first 4, double fluorine
The weight ratio of sulphur grass amine and Garagard is 20：0.6：20.
4. millet postemergence weed control compositionss according to claim 1, it is characterised in that：The different monooctyl ester of the chlorine of 2 first 4, double fluorine
The quality sum of sulphur grass amine and Garagard accounts for the 0.5~85% of the Herbicidal combinations gross mass.
5. millet postemergence weed control compositionss according to claim 1, it is characterised in that：The dosage form of the Herbicidal combinations is
Suspending agent, suspension emulsion, cream, microemulsion, aqueous emulsion, wettable powder or water dispersible granules.
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| CN201611100415.1A CN106665611A (en) | 2016-12-03 | 2016-12-03 | Postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for millet seedling |
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| CN201611100415.1A CN106665611A (en) | 2016-12-03 | 2016-12-03 | Postemergence weeding composition containing 2-methyl-4-chloro-phenoxyacetic acid isooctyl, florasulam and terbuthylazine for millet seedling |
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| CN1311998A (en) * | 2001-03-28 | 2001-09-12 | 北京市农林科学院植物保护环境保护研究所 | Herbicide composition for millet and sorghum field |
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