CN103190414B - Herbicide composition containing topramezone and MCPA - Google Patents

Herbicide composition containing topramezone and MCPA Download PDF

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CN103190414B
CN103190414B CN201210003816.0A CN201210003816A CN103190414B CN 103190414 B CN103190414 B CN 103190414B CN 201210003816 A CN201210003816 A CN 201210003816A CN 103190414 B CN103190414 B CN 103190414B
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methoxone
weeds
azoles humulone
benzene azoles
weed
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CN103190414A (en
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黄延昌
徐家俊
吴艳芳
李凤
徐磊
任静
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SHANDONG ZHONGHE CHEMICAL Co.,Ltd.
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Shandong Binnong Technology Co Ltd
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Abstract

The invention relates to a herbicide composition for controlling farmland weeds, and a use thereof, and concretely relates to a binary herbicide composition used for controlling corn field grassy weeds, broadleaf weeds and Sedge weeds and treating topramezone and MCPA as active components. The topramezone: MCPA weight ratio of the composition is 1:200-2:3, and the composition can be processed to prepare any preparation form allowable in agriculture. The herbicide composition has a more substantial synergistic effect than the individual application of the above two components when the herbicide composition is used for controlling the corn field weeds, and has the advantages of weed control spectrum enlargement, control cost reduction, weed resistance generation alleviation, and good safety to crops.

Description

The herbicidal composition that contains benzene azoles humulone and methoxone
Technical field
The present invention relates to a kind of for preventing and kill off the herbicidal composition of farmland weed, be specifically related to a kind ofly for preventing and kill off the weed killer herbicide of corn field grassy weed, broad leaved weed and sedge weed, it is the binary herbicidal composition take benzene azoles humulone and methoxone as active component.
Background technology
Corn is important cereal crops, is also important forage crop.In recent years, along with the development of the industries such as livestock breeding, food processing, wine-making industry and biodiesel, the market demand of corn constantly increases.China is the country that has throughout the year corn growth, and North gets Heilongjiang Province,, to Hainan Province, there is corn planting in south, and 2010 Annual planting areas reach 3,000 ten thousand hectares, are only second to paddy rice, wheat planting area.Along with the continuous expansion of maize sown area, nonirrigated farmland crop smothering also day by day expands, in recent years, Chemical Weeding in Maize Field has become the important technical links of guaranteeing corn safety in production, but because drug of choice is incorrect or operation technique is not in place, control efficiency is undesirable or produce the phenomenon such as poisoning and occur repeatedly.Thereby medicinal herb grower just need to select a kind of high activity, herbicide wide ranges and the weed killer herbicide to plant height safety.
Benzene azoles humulone is benzoylpyrazole herbicides, cauline leaf processing after seedling, absorb by root, seedling and leaf, in plant Xiang Ding, be transmitted to meristematic tissue to base, suppress p-hydroxyl oxygen phenylacetone acid esters dual oxide enzyme (4-HPPL), suppress plastoquinone and indirectly suppress the biosynthesis of carotenoid, making chloroplast synthesize suppressed and dysfunction.Chlorophyllous oxidative degradation causes the susceptible weeds albefaction of germinateing, and follows growth inhibition, and under photosynthesis, its symptom of being injured is like chlorotic necrosis, and bleaching symptom, plant death in 14 days appear in responsive target weeds after processing in 2~5 days.Its broad weed-killing spectrum, prevents and kill off corn field annual gramineous weed and broad leaved weed effective, and the lasting period is long, normally uses crop safety.
Methoxone is in phenoxy acetic acid class selectivity, to inhale conduction hormone herbicide, can destroy the conducting tissue of dicotyledon, weed growth be grown and be interfered, cauline leaf distortion, basal part of stem expands chap or cracking, and weeds are subject to occur hormone-type poisoning symptom after medicine.
Benzene azoles humulone activity is high, and consumption is low, uses optimum period wide after seedling, uses flexibly, and broad weed-killing spectrum, can prevent and kill off annual gramineous weed and broad leaved weed, undesirable to sedge weed preventive effect, and cost is high while using separately, is unfavorable for spread; Methoxone is prevented and kill off multiple annual and perennial broadleaf weed for granule cereal, paddy rice, corn, pea, lawn etc., also can prevent and kill off the sedge weeds such as the rhizome of nutgrass flatsedge, but bad to grassy weed effect, invalid to barnyard grass.Therefore, benzene azoles humulone, methoxone need be carried out to rational mixture, to reach the object of synergy, reduction consumption and cost, expansion herbicide spectrum.
Summary of the invention
Technical problem to be solved by this invention is, a kind of technical scheme of corn field compound herbicide composition is provided, and makes it can prevent and kill off grassy weed and can prevent and kill off again broad leaved weed and sedge weed, and can reduce medicament usage amount and to corn safety.
The technical solution used in the present invention is, a kind of corn field compound herbicide composition, it is characterized in that described active ingredient is benzene azoles humulone (Topramezone), chemical name is: [3-(4,5-dihydro-3-isoxazolyl)-4-sulfonyloxy methyl-2-methylbenzene] (5-hydroxyl-1-methyl isophthalic acid H-pyrazoles-4-yl) ketone, structural formula is:
Figure BDA0000129343930000021
And methoxone (MCPA), chemical name is (4-chloro-2-methyl phenoxy group) acetic acid, structural formula is:
Figure BDA0000129343930000022
The two weight ratio is benzene azoles humulone: methoxone=1: 200~2: 3, be preferably 1: 125~1: 3, and be more preferably 1: 19; Weight percentage in herbicidal composition is 0.5~90%.Surplus is one or more in the upper acceptable insecticides adjuvant of the agriculturals such as carrier, solvent, emulsifier, wetting agent, dispersant, thickener, defoamer, antifreezing agent.
Need or applying environment according to different uses, herbicidal composition of the present invention can, by conventional at present pesticide producing mode, be prepared into any formulation allowing in multi-form agricultural, and herbicidal composition most preferred dosage form of the present invention is wetting powder.
In described insecticides adjuvant, carrier can be one or more in white carbon, kaolin, diatomite, bentonite, precipitated calcium carbonate, gypsum, attapulgite, soluble starch, urea, amine fertilizer, glucose, maltose, sucrose, citric acid, natrium carbonicum calcinatum, Carbon Dioxide hydrogen potassium, anhydrous sodium sulfate, anhydrous sodium bicarbonate, Anhydrous potassium carbonate, or other this area common carrier.
In described insecticides adjuvant, solvent can be one or more in water, benzene,toluene,xylene, methyl alcohol, ethanol, isopropyl alcohol, butanols, cyclohexanone, cyclohexanol, oxolane, tetrahydrofurfuryl alcohol, carrene, chloroform, dimethyl formamide, dioxane, 1-METHYLPYRROLIDONE, ethyl acetate, acetone, butanone, ether, epoxidized soybean oil, plant soybean oil, liquid wax, lubricating oil.
In described insecticides adjuvant, emulsifier can be phenethyl phenol polyethenoxy polyethenoxy ether, styryl fluosite PULLRONIC F68 block type polyethers, aliphatic acid polyethenoxy ether, dibenzyl xenyl APEO, glyceryl monolaurate APEO, styrylphenol polyoxyethylene ether, ethoxy castor oil APEO, alkyl phenol polyoxyethylene polyoxypropylene ether, secondary octyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether, aliphatic alcohol polyoxyethylene sulfonate, polyoxyethylene alkylphenol formaldehyde condensation products, dodecyl sodium sulfonate calcium, decyl alcohol polyoxyethylene ether sulfosuccinic acid sodium, alkylphenol polyoxyethylene succinate monoester sulfonate, alkylphenol-polyethenoxy phosphate, alkylphenol polyoxyethylene sulfosuccinates, one or more in fatty acid polyethylene glycol ester.
In described insecticides adjuvant, dispersant can be one or more in alkylnaphthalene sulfonate, polycarboxylate, sodium lignin sulfonate, sodium metnylene bis-naphthalene sulfonate, calcium lignosulfonate, Sodium Polyacrylate, alkyl naphthalene sulfonic acid condensation polymer sodium salt, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products.
In described insecticides adjuvant, wetting agent is selected from one or more in Negel, lauryl sodium sulfate, Teepol, neopelex, fatty alcohol polyglycol ether sulphate, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products, alkylnaphthalene sulfonate.
Thickener in described insecticides adjuvant can be xanthans, polyvinyl alcohol, sodium alginate, diatomite, starch, kaolin or organobentonite etc., can also be other conventional thickeners of this area.
Antifreezing agent in described insecticides adjuvant can be propane diols, ethylene glycol, glycerine or urea etc., can also be other conventional antifreezing agents of this area.
Herbicidal combinations of the present invention is mainly used in management of weeds in corn field, as lady's-grass, barnyard grass, green foxtail, eleusine indica, wild millet, hill wolf tail, difformed galingale herb, cyperus iria, kitchen garden, knotweed, lamb's-quarters, Siberian cocklebur, black nightshade, sandbur, Thorn-Apple, broadcast ma wormwood artemisia, shepherd's purse, from stamen shepherd's purse, wartwort, Amaranthus retroflexus, acalypha copperleaf, meadow pine, field thistle, piemarker, field bindweed, alternanthera philoxeroides etc., but be not limited to above-mentioned weeds.
The present invention possesses following beneficial effect:
Herbicidal composition provided by the invention, in certain ratio range, its synergy shows obvious synergistic effect, the herbicidal effect of composition is significantly improved than single dose, reduced pesticide cost and the adverse effect to ecotope, it applies huge Social benefit and economic benefit.
This herbicidal composition adopts methoxone and benzene azoles humulone mixture to use, this two components mechanism of action difference, so there is wider herbicide spectrum and more excellent synergy control efficiency, benzene azoles humulone has made up the methoxone shortcoming low to grassy weed preventive effect, only need a drug just can effectively prevent and kill off corn field grassy weed, broad leaved weed and sedge weed, when use to corn growth safety, also can delay or overcome the drug-fast generation of corn field weed, be conducive to agricultural synthesis and administer.
Embodiment
Embodiment is by the following examples described in further detail foregoing of the present invention again, but this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following example.Without departing from the idea case in the present invention described above, various replacements or the change made according to ordinary skill knowledge and customary means, all should comprise within the scope of the invention.
FORMULATION EXAMPLE 1:
Take 2% benzene azoles humulone, 43% methoxone, 3% neopelex, 6% lignosulfonates, 3% carboxymethyl cellulose, kaolin and add to 100% weight portion.The frequent regulation of above-mentioned raw materials, for the i.e. front mixing of method, air-flow crushing, the rear mixing of wetting powder, obtains described 45% benzene azoles humulone methoxone wetting powder.
FORMULATION EXAMPLE 2:
Take 4% benzene azoles humulone, 76% methoxone, 5% Negel formaldehyde condensation products, 3% alkylphenol-polyethenoxy ichthyodin, 5% white carbon, diatomite and add to 100% weight portion.The frequent regulation of above-mentioned raw materials, for the i.e. front mixing of method, air-flow crushing, the rear mixing of wetting powder, obtains described 80% benzene azoles humulone methoxone wetting powder.
FORMULATION EXAMPLE 3:
Take 15% benzene azoles humulone, 45% methoxone, 5% alkylphenol polyoxyethylene phosphate, 3% alkylsulfonate, 2% ethylene glycol, anhydrous sodium sulfate and add to 100% weight portion.The frequent regulation of above-mentioned raw materials is that high speed shear is disperseed, sand milling is pulverized, is in harmonious proportion for the method for suspending agent, obtains described 60% benzene azoles humulone methoxone suspending agent.
FORMULATION EXAMPLE 4:
Take 2% benzene azoles humulone, 18% methoxone, 3%TERSPERSE4894,2%TERSPERSE2500,3%TERSPERSE2425,3% white carbon, 5% ethylene glycol, soybean oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making described 20% benzene azoles humulone methoxone oil suspending agent after sand mill sand milling.
FORMULATION EXAMPLE 5:
Take 5% benzene azoles humulone, 30% methoxone, 4% triphen ethyl-phenol polyoxy ethyl ether, 1% alkyl phenol polyoxy ethyl ether, 0.2% xanthans, methyl oleate and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, after pulverizing, be in harmonious proportion, makes described 35% benzene azoles humulone methoxone oil suspending agent with sand mill sand milling.
The raw embodiment that surveys:
Control Weeds in Maize Field indoor pharmacodynamic test I:
In order to prevent and treat corn field grassy weed, broad leaved weed and the sedge weed in agricultural production, inventor has carried out Toxicity Determination research with benzene azoles humulone and two kinds of compositions of methoxone, concrete grammar is: indoor pot method is carried out cauline leaf processing, and test is with reference to " farm-chemical indoor determination test rule weed killer herbicide the 4th part ".
1, reagent agent
30% benzene azoles humulone suspending agent;
20% methoxone aqua
2, for examination weeds
Lady's-grass; Barnyard grass; Amaranthus retroflexus; Kitchen garden; The rhizome of nutgrass flatsedge
3, experimental scheme
18 processing are established in this test altogether, wherein benzene azoles humulone establish 0.5,1,3,4 dosage processing of 4g/ mu, methoxone establishes 6,12,57,75,100,6 dosage processing of 125g/ mu, the two mixedly sets up 0.5+100,1+125,1+75,3+57,4+75,4+12,7 dosage ratio processing of 4+6g/ mu separately benzene azoles humulone and methoxone, separately establish 1 clear water contrast, amount to 18 processing, repeat 4 times.
4, test method
The cultivation of target weeds adopts potted plant cultivation, by 11 × 12cm plastic basin, by do not use the soil of adopting back in the corn field of weed killer herbicide air-dry, fill basin after sieving, quantitatively to 4/5 of dry ground place in basin, soil pH value 7.0, the content of organic matter 1.2%.Adopt basin alms bowl bottom infiltrating irrigation mode, make soil completely moistening.After the lady's-grass that last year, field gathered, barnyard grass, Amaranthus retroflexus, kitchen garden seed are soaked, the even program request of each approximately 60/basin is at soil surface, blinding 0.5~1cm, the rhizome of nutgrass flatsedge takes subterraneous root and is placed in basin in field, blinding 4~5cm, be placed in cellar culture in greenhouse, in cultivation process with the moisturizing of basin alms bowl bottom infiltrating irrigation mode, to keep ground moistening.After weeds emerge, it is 50 strains that every to lady's-grass, barnyard grass and Amaranthus retroflexus basin number of weeds is determined to strain, and the every basin of kitchen garden is determined strain 8 strains, and the every basin of the rhizome of nutgrass flatsedge is determined strain 5 strains, puts in spray tower and sprays medicine in 3~5 leaf phases of weeds, continues to be placed in greenhouse and cultivate and observe after dispenser.
5, weeds investigation and analytical method
After dispenser, periodical visual inspection is observed growth conditions, poisoning symptom and the poisoning degree of weeds, records symptom of chemical damage.After medicine 14 days, cut off survival weeds seedling along soil surface with blade, weigh weeds fresh weight with analytical balance, draw fresh weight preventive effect E, adopt formula (1) to calculate theoretical fresh weight preventive effect E 0, with the check of Gowing method, evaluate the two mixed synergy type to weeds.
E 0=X+Y-(X*Y/100)..........................................(1)
In formula:
X---fresh weight preventive effect when weed killer herbicide A consumption is P;
Y---fresh weight preventive effect when weed killer herbicide B consumption is Q;
E---weed killer herbicide A and weed killer herbicide B be mixed actual fresh weight preventive effect in proportion;
E 0---weed killer herbicide A and weed killer herbicide B be mixed theoretical fresh weight preventive effect in proportion.
E-E 0> 10% is synergistic effect; E-E 0<-10% is antagonism; E-E 0it between ± 10%, is summation action.
6, result of the test: see Table I
Table I-1 benzene azoles humulone and methoxone and mixture thereof the herbicide effect to lady's-grass
Figure BDA0000129343930000051
Can find out from Table I-1, benzene azoles humulone is obviously good compared with methoxone to the preventive effect of lady's-grass, increase with amount of application, the two preventive effect is corresponding improve all, in the time that the two ratio is between 1: 200~2: 3, mixed after actual preventive effect to lady's-grass and the difference of theoretical preventive effect be greater than 10%, preventive effect is synergistic effect, wherein, in the time that the two ratio is 1: 19, its synergistic effect is the most obvious.
Table I-2 benzene azoles humulone and methoxone and mixture thereof the herbicide effect to Amaranthus retroflexus
Can find out from Table I-2, methoxone is good compared with benzene azoles humulone to the preventive effect of Amaranthus retroflexus, increase with amount of application, the two preventive effect is corresponding improve all, in the time that the two ratio is between 1: 200~2: 3, mixed after actual preventive effect to Amaranthus retroflexus and the difference of theoretical preventive effect be greater than 10%, preventive effect is synergistic effect, wherein, in the time that the two ratio is 1: 19, its synergistic effect is the most obvious.
Table I-3 benzene azoles humulone and methoxone and mixture thereof the herbicide effect to the rhizome of nutgrass flatsedge
Figure BDA0000129343930000071
Can find out from Table I-3, methoxone is good compared with benzene azoles humulone to the preventive effect of the rhizome of nutgrass flatsedge, increase with amount of application, the two preventive effect is corresponding improve all, in the time that the two ratio is between 1: 200~2: 3, mixed after actual preventive effect to the rhizome of nutgrass flatsedge and the difference of theoretical preventive effect be greater than 10%, preventive effect is synergistic effect, wherein, in the time that the two ratio is 1: 19, its synergistic effect is the most obvious.
Indoor biometrics test shows, when 30% benzene azoles humulone suspending agent is mixed with different proportionings from 20% methoxone aqua, corn field common weed is shown to good preventive effect.In the time that the two ratio is between 1: 200~2: 3, preventive effect reaches 61.76~98.69%, the preventive effect (2.15~78.53%) while all use separately higher than the two.Actual preventive effect after mixed is all greater than 10% with the difference of the theoretical preventive effect drawing by Gowing method, and preventive effect is synergistic effect, and wherein, in the time that the two ratio is 1: 19, its synergistic effect is the most obvious.
Control Weeds in Maize Field field control effectiveness test II:
1, test is processed
(1) 30% benzene azoles humulone suspending agent 6g/ mu;
(2) 20% methoxone aqua 160g/ mus;
(3) 80% benzene azoles humulone methoxone wetting powder (1: 19) 8g/ mus;
(4) 80% benzene azoles humulone methoxone wetting powder (1: 19) 10g/ mus;
(5) clear water processing
5 processing are established in test, repeat for 4 times, process community for totally 20,20 square metres of every processing community areas, and random district group is arranged.(3), (4) benzene azoles humulone methoxone wetting powder (Shandong Binnong Technology Co., Ltd.'s production) is reagent agent, 30% benzene azoles humulone suspending agent and 20% methoxone aqua are contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has lady's-grass, barnyard grass, Amaranthus retroflexus, kitchen garden, the rhizome of nutgrass flatsedge etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation corn, evaluates the safety of reagent agent to corn.
(2) herbicidal effect: every community is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculate weeds strain preventive effect.
(3) result of the test
Safety: dispenser " Invest, Then Investigate ", chemicals treatment district corn plant height, Ye Se and blank district are basically identical, show that reagent agent (3), (4) benzene azoles humulone methoxone are all to corn safety.
Herbicidal effect: see Table II.
30 days various weed control efficacies after Table II medicine
Figure BDA0000129343930000081
Note: (1) 30% benzene azoles humulone suspending agent
(2) 20% methoxone aquas
(3) 80% benzene azoles humulone methoxone wetting powders (1: 19)
(4) 80% benzene azoles humulone methoxone wetting powders (1: 19)
(5) clear water processing
From Table II, the benzene azoles humulone methoxone wetting powder that two proportionings are 1: 19 is respectively 97.01% and 97.82% to corn field common weed strain preventive effect, all be better than contrasting medicament 30% benzene azoles humulone suspending agent and 20% methoxone aqua (weeds strain preventive effect is respectively 83.66% and 54.40%), and to corn safety, lasting period is greater than one month, substantially can control the corn field crop smothering in whole vegetative period.
Control Weeds in Maize Field field control effectiveness test III:
1, test is processed
(1) 5% benzene azoles humulone methoxone wetting powder (1: 19) 160g/ mu
(2) 80% benzene azoles humulone methoxone wetting powder (1: 19) 10g/ mus
(3) 90% benzene azoles humulone methoxone wetting powder (1: 19) 9g/ mus
3 processing are established in test, repeat for 4 times, process community for totally 12,20 square metres of every processing community areas, and random district group is arranged.(1)~(3) benzene azoles humulone methoxone wetting powder (Shandong Binnong Technology Co., Ltd.'s production) is reagent agent, and every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has lady's-grass, barnyard grass, Amaranthus retroflexus, kitchen garden, the rhizome of nutgrass flatsedge etc.
2, pilot project and method
Herbicidal effect: every community is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculate weeds strain preventive effect.
Result of the test: herbicidal effect is shown in Table III.
30 days various weed control efficacies after Table III medicine
Figure BDA0000129343930000091
Note: (1) 10% benzene azoles humulone methoxone wetting powder (1: 19)
(2) 80% benzene azoles humulone methoxone wetting powders (1: 19)
(3) 90% benzene azoles humulone methoxone wetting powders (1: 19)
From Table III, in the time that the weight ratio of benzene azoles humulone and methoxone is 1: 19, the benzene azoles humulone methoxone wetting powder of different content to common weed strain preventive effect all more than 90%, while showing that benzene azoles humulone and methoxone weight ratio are optimal proportion, the herbicidal composition of different activities component content all has significant preventive effect to weeds.
The raw result of the test of surveying shows, after benzene azoles humulone and methoxone are composite, two active component ratios are between 1: 200~2: 3, weight percentage in herbicidal composition is in 0.5~90% scope, compared with single dose separately, preventive effect to weeds is significantly improved, and has reached the object of simultaneously preventing and kill off grassy weed, broad leaved weed and sedge weed.

Claims (6)

1. a corn field herbicide composition, is characterized in that this compound herbicide composition contains benzene azoles humulone and two kinds of active components of methoxone and usual auxiliaries, and wherein the weight ratio of benzene azoles humulone and methoxone is 1:200-2:3.
2. herbicidal composition according to claim 1, the weight ratio that it is characterized in that active component benzene azoles humulone and methoxone is 1:125-1:3.
3. according to the herbicidal composition described in claim 1 and 2, it is characterized in that the mass percent of active component in herbicidal composition is 0.5-90%.
4. herbicidal composition according to claim 1, is characterized in that described usual auxiliaries comprises several in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, defoamer, antifreezing agent, disintegrant, binding agent, carrier, deionized water.
5. herbicidal composition according to claim 1, can be mixed with the upper any formulation allowing of agricultural while it is characterized in that described composition practical application.
6. according to the herbicidal composition described in claim 1-5, it is characterized in that for Control Weeds in Maize Field.
CN201210003816.0A 2012-01-08 2012-01-08 Herbicide composition containing topramezone and MCPA Active CN103190414B (en)

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CN104106584A (en) * 2014-01-26 2014-10-22 山东先达农化股份有限公司 Cornfield compounded herbicide composition
CN105557708B (en) * 2014-10-16 2018-05-15 江苏龙灯化学有限公司 A kind of Herbicidal combinations
CN105494363B (en) * 2014-10-16 2018-07-17 江苏龙灯化学有限公司 A kind of Herbicidal combinations
CN105475298B (en) * 2015-12-21 2018-08-03 南京华洲药业有限公司 A kind of mixed herbicide and its application including topramezone and dimethyl tetrachloride

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