CN108174865A - The Herbicidal combinations and its application of a kind of Glufosinate-ammoniumpesticideng and mesotrione - Google Patents
The Herbicidal combinations and its application of a kind of Glufosinate-ammoniumpesticideng and mesotrione Download PDFInfo
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- CN108174865A CN108174865A CN201711167784.7A CN201711167784A CN108174865A CN 108174865 A CN108174865 A CN 108174865A CN 201711167784 A CN201711167784 A CN 201711167784A CN 108174865 A CN108174865 A CN 108174865A
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- glufosinate
- ammonium
- herbicidal combinations
- mesotrione
- herbicidal
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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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
-
- 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
- A01N41/10—Sulfones; Sulfoxides
Abstract
The invention discloses the Herbicidal combinations and its application of a kind of Glufosinate-ammoniumpesticideng and mesotrione, for the Herbicidal combinations using glufosinate-ammonium and mesotrione as principle active component, the mass ratio of glufosinate-ammonium and mesotrione is 1：60~60：1.Herbicidal combinations of the present invention can be used for corn field postemergence weed control, particularly have remarkable result for preventing and kill off grass family and broad leaved weed in corn field.Herbicidal combinations of the present invention under the premise of drug effect is improved, delay Weed Resistance compared to single agent, and herbicidal spectrum is wide, and the lasting period is long, and all have safety to corn and succession crop.
Description
Technical field
The invention belongs to technical field of pesticide, especially herbicide field, and in particular to a kind of Glufosinate-ammoniumpesticideng and methyl sulphur
The binary built Herbicidal combinations of humulone, the Herbicidal combinations can be applied to corn field postemergence weed control.
Background technology
Glufosinate-ammonium (Glufosinate-ammonium).Chemical name：4- [hydroxyl (methyl) phosphono] high third ammonia of-DL-
Acid, structural formula are：
Glufosinate-ammonium also known as glufosinate are a kind of organophosphorus herbicides of non-selective foliage-spray, and 1979 by federal moral
State's Hoechst (Hoechst) chemical company synthesizes exploitation first.The herbicide effect mechanism of glufosinate-ammonium is tool after being absorbed by blade
Have part systemic action, can from blade base to end-transfer, shifted to other positions of plant it is less, to not unearthed young shoot and
Seed is harmless.Ammonium metabolism sinks into disorder in a short time after administration in plant, and strong cytotoxic agent ammonium ion is in plant
Interior accumulation；Make dunsiekte and dead.Photosynthesis is also heavily suppressed simultaneously, in yellow-white after aggrieved plant chlorosis, 2~5
Start withered and yellow die after it.It loses activity after contact soil, cauline leaf is sprayed after only preferably making seedling.
Glufosinate-ammonium is mainly used for orchard, vineyard, potato fields, nursery, forest, pasture, ornamental shrub and no-tillage goes out
Nature herbiciding prevents and kill off annual and perennial grassy weed, such as amur foxtail, wild oat, lady's-grass, barnyard grass, green bristlegrass, precocity
Standing grain, quackgrass, Bermuda grass, bent grass, reed, fescue grass etc..Also lamb's-quarters, amaranth, knotweed, shepherd's purse, black nightshade, chickweed, purslane, pig can be prevented and kill off
The broad leaved weeds such as calamity, sonchus oleraceus, creeping thistle, field bindweed, dandelion are brought disaster to, also have certain effect to nutgrass flatsedge and pteridophyte.
Mesotrione (Mesotrione), chemical name：2- [4- (sulfonyloxy methyl) -2- nitrobenzenes] -1,3- ring amines
Ketone, structural formula：
Mesotrione is before a kind of novel selective inner sucting conduction type maize seedling and herbicide after seedling, in fact HPPD
Effective inhibitor of (4- hydroxyphenyl pyravate dual oxides enzyme), can inhibit the biosynthesis of carotenoid, weeds occur white
It is dead after change, it can be absorbed by the leaf of plant and root, to top transmission downwards.Can effectively prevent and kill off corn field dayflower, piemarker, knotweed,
The broadleaf weeds such as acalypha copperleaf, lamb's-quarters, Amaranthus retroflexus also have the monocotyledon weeds such as lady's-grass, green bristlegrass, barnyard grass and certain prevent and kill off work
With to corn and succession crop safety.
Corn field herbicide is limited by crop safety at present, and herbicide controlling spectrum is also limited, and a kind of herbicide single dose is used alone
Cannot completely effectively control the generation of corn field weed, furthermore some herbicides due to the water-soluble big or field lasting period too
It grows, dosage is excessive or the uneven residual hazard all be easy to causeing to this season crop or succession crop of dispenser.Inventor is through research
It was found that the synergistic complex of herbicide be expand weed control spectrum and improve preventive effect effective measures, so far it is not yet found that
Close the Herbicidal combinations of glufosinate-ammonium and mesotrione compounding.
Invention content
The object of the present invention is to provide a kind of Glufosinate-ammoniumpesticidengs and the Herbicidal combinations of mesotrione.
It is a further object of the present invention to provide application of the Herbicidal combinations in cornfield weeding.
The purpose of the present invention is achieved through the following technical solutions：
The Herbicidal combinations of a kind of Glufosinate-ammoniumpesticideng and mesotrione, the Herbicidal combinations are with glufosinate-ammonium and mesotrione
For principle active component, the mass ratio of glufosinate-ammonium and mesotrione is 1：60~60：1.It is preferred that glufosinate-ammonium and mesotrione
Mass ratio be 1：20~40：1, most preferably 1：30~40：1.In some preferred technical solutions：Glufosinate-ammonium and methyl
Sulphur humulone can be 34：1、29：1、59：1、12：1、60：1、50：1、40：1、20：1、10：1、5：1、1：1、1：5、1：10、1：
20、1：30、1：50、1：It is selected in 60 these ratios.
This compound weeding composition can contain only active constituent glufosinate-ammonium and mesotrione, also can be when using or preparing
Other components are added in into active constituent, the effective ingredient in the Pesticidal combination can be present in composition with enhancing effective amount
In.
In Herbicidal combinations, the mass percentage of both glufosinate-ammonium and mesotrione in Herbicidal combinations is
1%~80%, preferred mass percentage composition is 10%~65%.
In the glufosinate-ammonium of the present invention and the binary built composition of mesotrione, in addition to glufosinate-ammonium and mesotrione etc.
Outside active ingredient, the conventional surfactants allowed on pesticidal preparations, thickener, solvent or solid packing etc. can also be added and helped
Agent is configured to any one dosage form allowed on pesticide.It is preferred that it is processed into missible oil, suspending agent, aqueous emulsion, microemulsion, water-dispersible grain
Agent, wettable powder etc..
Herbicidal combinations of the present invention can be applied in corn field postemergence weed control, the standing grain particularly in corn field is prevented and kill off
Being applied in undergraduate course and broad leaved weed has remarkable result.
Present invention selection can herbicide controlling spectrum it is different, two kinds of herbicides of glufosinate-ammonium and mesotrione of advantage and disadvantage complementation suitably subtract
Mixture use is made into after amount, both expands herbicide controlling spectrum in this way, hence it is evident that improves herbicidal effect, also avoids generating this season crop
Poisoning and the possibility that residual hazard is generated to succession crop.
The Herbicidal combinations of the present invention have the following advantages：
1st, activity of weeding is high.The Herbicidal combinations of the present invention can kill weeds by two kinds of different mechanism so that weeds
Resistance generates speed and reduces, and greatlys improve the removing activity of herbicide.
2nd, herbicidal spectrum is wide, and the lasting period is long.After the two mixing, it can improve and a variety of grassy weeds and broad leaved weed are prevented
It controls.
3rd, delay Weed Resistance.Herbicidal combinations of the present invention reduce resistance of the weeds to medicament, and carry by binary built
The preventive effect of high antagonism weeds, so as to extend the service life of medicament.
4th, it is safe.Since its dosage is under control, make medicament under the premise of drug effect is improved, to jade
The safety of rice and succession crop is also improved.
The Herbicidal combinations of the present invention, applied to corn field postemergence weed control, can prevent and kill off various grass family in corn field
And broad leaved weed, under the premise of drug effect is improved, all there is safety to corn and succession crop.
Therefore, Herbicidal combinations of the present invention can be applied in the herbicide for corn field postemergence weed control is prepared,
Particularly applied in the herbicide of grass family and broad leaved weed in preparation for preventing and kill off in corn field.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The fixed present invention, all protection models that under the concept thereof of the present invention simple modifications of preparation method of the present invention are belonged to the present invention
Within enclosing.
Percentage is mass percent in all formulas of following embodiment.The processing work of the various preparations of the present composition
Skill is the prior art, can be varied from according to different situations.
First, dosage form prepares embodiment
Embodiment 1：35% glufosinate-ammonium mesotrione missible oil (34：1)
Glufosinate-ammonium 34%, mesotrione 1%, alkyl phenol polyoxyethylene ether 4%, phenethyl phenol polyethenoxy ether 15%,
Dimethylbenzene complements to 100%, and the missible oil that mass percentage is 35% is configured to according to conventional formulation method.
Embodiment 2：30% glufosinate-ammonium mesotrione suspending agent (29：1)
Glufosinate-ammonium 29%, mesotrione 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus are water, according to conventional preparation side
Method is configured to the suspending agent that mass percentage is 30%.
Embodiment 3：60% glufosinate-ammonium mesotrione water dispersible granule (59：1)
Glufosinate-ammonium 59%, mesotrione 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol
2%, kaolin complements to 100%, and the water dispersible granules that mass percentage is 60% are configured to according to conventional formulation method
(WDG)。
Embodiment 4：65% glufosinate-ammonium mesotrione wettable powder (12：1)
Glufosinate-ammonium 60%, mesotrione 5%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4% are high
Ridge soil complements to 100%, and the wettable powder (WP) that mass percentage is 65% is configured to according to conventional formulation method.
Embodiment 5：61% glufosinate-ammonium mesotrione missible oil (60：1)
Glufosinate-ammonium 60%, mesotrione 1%, alkyl phenol polyoxyethylene ether 4%, phenethyl phenol polyethenoxy ether 15%,
Dimethylbenzene complements to 100%, and the missible oil that mass percentage is 61% is configured to according to conventional formulation method.
Embodiment 6：61% glufosinate-ammonium mesotrione missible oil (1：60)
Glufosinate-ammonium 1%, mesotrione 60%, alkyl phenol polyoxyethylene ether 4%, phenethyl phenol polyethenoxy ether 15%,
Dimethylbenzene complements to 100%, and the missible oil that mass percentage is 61% is configured to according to conventional formulation method.
Embodiment 7：51% glufosinate-ammonium mesotrione suspending agent (50：1)
Glufosinate-ammonium 50%, mesotrione 1%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus are water, according to conventional preparation side
Method is configured to the suspending agent that mass percentage is 51%.
Embodiment 8：51% glufosinate-ammonium mesotrione suspending agent (1：50)
Glufosinate-ammonium 1%, mesotrione 50%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, surplus are water, according to conventional preparation side
Method is configured to the suspending agent that mass percentage is 51%.
Embodiment 9：31% glufosinate-ammonium mesotrione water dispersible granule (1：30)
Glufosinate-ammonium 1%, mesotrione 30%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol
2%, kaolin complements to 100%, and the water dispersible granules that mass percentage is 31% are configured to according to conventional formulation method.
Embodiment 10：41% glufosinate-ammonium mesotrione water dispersible granule (40：1)
Glufosinate-ammonium 40%, mesotrione 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol
2%, kaolin complements to 100%, and the water dispersible granules that mass percentage is 41% are configured to according to conventional formulation method.
Embodiment 11：42% glufosinate-ammonium mesotrione wettable powder (20：1)
Glufosinate-ammonium 40%, mesotrione 2%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4% are high
Ridge soil complements to 100%, and the wettable powder that mass percentage is 42% is configured to according to conventional formulation method.
Embodiment 12：21% glufosinate-ammonium mesotrione wettable powder (1：20)
Glufosinate-ammonium 1%, mesotrione 20%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4% are high
Ridge soil complements to 100%, and the wettable powder that mass percentage is 21% is configured to according to conventional formulation method.
Embodiment 13：33% glufosinate-ammonium mesotrione aqueous emulsion (1：10)
Glufosinate-ammonium 3%, mesotrione 30%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, 200# solvent naphthas 20%, water complements to 100%, according to normal
The formulation method of rule is configured to the aqueous emulsion that mass percentage is 33%.
Embodiment 14：33% glufosinate-ammonium mesotrione aqueous emulsion (10：1)
Glufosinate-ammonium 30%, mesotrione 3%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, 200# solvent naphthas 20%, water complements to 100%, according to normal
The formulation method of rule is configured to the aqueous emulsion that mass percentage is 33%.
Embodiment 15：30% glufosinate-ammonium mesotrione microemulsion (5：1)
Glufosinate-ammonium 25%, mesotrione 5%, methyl naphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether
3%th, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, water complements to 100%, matches according to conventional formulation method
The microemulsion that mass percentage is 30% is made.
Embodiment 16：60% glufosinate-ammonium mesotrione wettable powder (1：5)
Glufosinate-ammonium 10%, mesotrione 50%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4% are high
Ridge soil complements to 100%, and the wettable powder that mass percentage is 60% is configured to according to conventional formulation method.
Embodiment 17：10% glufosinate-ammonium mesotrione wettable powder (1：1)
Glufosinate-ammonium 5%, mesotrione 5%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4%, kaolinite
Soil complements to 100%, and the wettable powder that mass percentage is 10% is configured to according to conventional formulation method.
2nd, drug effect verification test
1), toxicity determination test
According to active ingredient glufosinate-ammonium：Mesotrione quality proportioning is：34：1、29：1、59：1、12：1、60：1、50：
1、40：1、20：1、10：1、5：1、1：1、1：5、1：10、1：20、1：30、1：50、1：60 are tested, and measure it to corn field
The co-toxicity coefficient of common weed knotweed.
Test method：The seed of quantitative knotweed is seeded in the disposable paper cup of 9cm respectively, 10~15 are sowed in every glass
Grain seed, cultivates in illumination box, when 3~6 leaf phase of knotweed, spraying treatment is carried out on crawler type crops sprayer.Place
Continue to cultivate in greenhouse after reason, respectively processing to the preventive effects of weeds, weighs that each treated that weeds are fresh to routine observation after 30d
Weight, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is more than 100, shows that two kinds of active principles have synergistic effect,
Co-toxicity coefficient is more than 120, shows that two kinds of active principles have notable synergistic effect, and co-toxicity coefficient is less than 100, shows two kinds effectively
Substance has antagonism.Measurement result is as shown in table 1.
1 toxicity measurement result of table
As it can be seen from table 1 glufosinate-ammonium significantly improves the herbicidal effect of knotweed with mesotrione compounding, illustrate that the two is multiple
Pairing prevents and kill off knotweed and has significant synergies.Especially the proportioning of glufosinate-ammonium and mesotrione is 1：30~40：Between 1,
Co-toxicity coefficient after two kinds of active principle compoundings is optimal, illustrates that the present invention has apparent synergistic effect.
2), field control effectiveness test.
Reagent agent：
Glufosinate-ammonium prepared by embodiment 1~17 and the re-compounded binary herbicide of mesotrione different ratio.
Comparison medicament：
30% glufosinate-ammonium AS (commercially available), 70% mesotrione water dispersible granule (commercially available).
For studying object：Corn
Maize seedling grows fine, robust plant, without other pest and disease damages.
Control object：
The weeds such as dayflower, amur foxtail, barnyard grass, piemarker, knotweed, purslane.
Test method：
According to the area of experimental plot, good various medicaments of precise, and after being watered dilution, using knapsack sprayer,
Carry out even spraying, the dedicated Fan spray head of sprinkler selection herbicide.During spraying, it should be noted that it is small that liquid is uniformly sprayed application to experiment
Qu Zhong accomplishes no drain spray, the phenomenon that spraying more.
20d, 40d observe weeds death condition, and the activity of weeding of more various medicaments after medicine respectively after experiment.This
Outside, the condition of production (dosage is the dosage of active ingredient per acre) of crop is also observed in 1~15d after medicine, to investigate
Whether medicament has poisoning to crop.
The embodiment of the present invention preparation Herbicidal Testing Trials effect see the table below 2 (20d after medicine) and table 3 (40d after medicine)
2 field control effectiveness test result of table (20d after medicine)
3 field control effectiveness test result of table (40d after medicine)
From table 2 and table 3 as can be seen that glufosinate-ammonium has expansion herbicidal spectrum with mesotrione compounding and improves activity of weeding
Effect, and extend the lasting period of medicament.Broad leaved weed and grassy weed can be effectively prevented and kill off, preventive effect is better than single dose
Preventive effect, both illustrate that compounding has significant synergistic effect to the preventive effect of broad leaved weed in corn field and grassy weed.
4 medicament of table is to the security survey result of crop
Corn in each processing cell grows fine, and has no any medicine spot, illustrates that various medicaments are safe to corn.
Claims (9)
1. the Herbicidal combinations of a kind of Glufosinate-ammoniumpesticideng and mesotrione, it is characterised in that the Herbicidal combinations are with glufosinate-ammonium and first
Base sulphur humulone is principle active component, wherein, the mass ratio of glufosinate-ammonium and mesotrione is 1：60~60：1.
2. Herbicidal combinations according to claim 1, it is characterised in that glufosinate-ammonium and methyl sulphur grass in the Herbicidal combinations
The mass ratio of ketone is 1：20~40：1.
3. Herbicidal combinations according to claim 2, it is characterised in that glufosinate-ammonium and methyl sulphur grass in the Herbicidal combinations
The mass ratio of ketone is 1：30~40：1.
4. according to the Herbicidal combinations described in claim 1,2 or 3, it is characterised in that both glufosinate-ammonium and mesotrione except
Mass percentage in careless composition is 1%~80%.
5. Herbicidal combinations according to claim 4, it is characterised in that both glufosinate-ammonium and mesotrione are in weeding group
It is 10%~65% to close the mass percentage in object.
6. Herbicidal combinations according to claim 1, it is characterised in that the Herbicidal combinations are with glufosinate-ammonium and methyl sulphur grass
Ketone is configured to any one dosage form for the auxiliary agent allowed on principle active component and pesticide.
7. Herbicidal combinations according to claim 6, it is characterised in that the dosage form for missible oil, suspending agent, aqueous emulsion,
Microemulsion, water dispersible granules or wettable powder.
8. application of the Herbicidal combinations described in claim 1 in corn field postemergence weed control.
9. application according to claim 1, it is characterised in that Herbicidal combinations grass family in corn field is prevented and kill off
With the application in broad leaved weed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711167784.7A CN108174865A (en) | 2017-11-21 | 2017-11-21 | The Herbicidal combinations and its application of a kind of Glufosinate-ammoniumpesticideng and mesotrione |
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| CN201711167784.7A CN108174865A (en) | 2017-11-21 | 2017-11-21 | The Herbicidal combinations and its application of a kind of Glufosinate-ammoniumpesticideng and mesotrione |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022190129A1 (en) * | 2021-03-09 | 2022-09-15 | Willowood Chemicals Private Limited | Herbicidal compositions comprising of phosphonic acid compound |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116626A1 (en) * | 1990-05-26 | 1991-11-28 | Hoechst Ag | New herbicidal compsn. esp. for use in fruit crops - contains one or more phosphinyl-butanoic acid cpds. and 3,5-di:chloro:benzamide deriv. |
| CN1315832A (en) * | 1998-08-13 | 2001-10-03 | 阿温提斯作物科学有限公司 | Herbicidal composition for tolerant or resistant rice crops |
-
2017
- 2017-11-21 CN CN201711167784.7A patent/CN108174865A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116626A1 (en) * | 1990-05-26 | 1991-11-28 | Hoechst Ag | New herbicidal compsn. esp. for use in fruit crops - contains one or more phosphinyl-butanoic acid cpds. and 3,5-di:chloro:benzamide deriv. |
| CN1315832A (en) * | 1998-08-13 | 2001-10-03 | 阿温提斯作物科学有限公司 | Herbicidal composition for tolerant or resistant rice crops |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022190129A1 (en) * | 2021-03-09 | 2022-09-15 | Willowood Chemicals Private Limited | Herbicidal compositions comprising of phosphonic acid compound |
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