CN86106679A - Herbicide for rice field - Google Patents
Herbicide for rice field Download PDFInfo
- Publication number
- CN86106679A CN86106679A CN86106679.0A CN86106679A CN86106679A CN 86106679 A CN86106679 A CN 86106679A CN 86106679 A CN86106679 A CN 86106679A CN 86106679 A CN86106679 A CN 86106679A
- Authority
- CN
- China
- Prior art keywords
- water
- herbicide
- rice field
- weed killer
- killer herbicide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000004009 herbicide Substances 0.000 title claims abstract description 69
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 45
- 235000007164 Oryza sativa Nutrition 0.000 title claims description 31
- 235000009566 rice Nutrition 0.000 title claims description 31
- 240000007594 Oryza sativa Species 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 10
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 claims description 28
- 239000007900 aqueous suspension Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000003892 spreading Methods 0.000 claims description 8
- 238000009333 weeding Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000007865 diluting Methods 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 29
- 239000000839 emulsion Substances 0.000 description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- -1 polypropylene Polymers 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 229920003169 water-soluble polymer Polymers 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 230000002744 anti-aggregatory effect Effects 0.000 description 3
- 235000013877 carbamide Nutrition 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 230000009969 flowable effect Effects 0.000 description 3
- XITQUSLLOSKDTB-UHFFFAOYSA-N nitrofen Chemical compound C1=CC([N+](=O)[O-])=CC=C1OC1=CC=C(Cl)C=C1Cl XITQUSLLOSKDTB-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004563 wettable powder Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- YLPGTOIOYRQOHV-UHFFFAOYSA-N Pretilachlor Chemical compound CCCOCCN(C(=O)CCl)C1=C(CC)C=CC=C1CC YLPGTOIOYRQOHV-UHFFFAOYSA-N 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 235000013772 propylene glycol Nutrition 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000005484 Bifenox Substances 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ODXJKQWXZQUCEO-UHFFFAOYSA-N C1(=CC=CC=C1)C(C(=O)NOC1=CC=CC2=CC=CC=C12)C Chemical compound C1(=CC=CC=C1)C(C(=O)NOC1=CC=CC2=CC=CC=C12)C ODXJKQWXZQUCEO-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DXXVCXKMSWHGTF-UHFFFAOYSA-N Chlomethoxyfen Chemical compound C1=C([N+]([O-])=O)C(OC)=CC(OC=2C(=CC(Cl)=CC=2)Cl)=C1 DXXVCXKMSWHGTF-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- SUSRORUBZHMPCO-UHFFFAOYSA-N MC-4379 Chemical compound C1=C([N+]([O-])=O)C(C(=O)OC)=CC(OC=2C(=CC(Cl)=CC=2)Cl)=C1 SUSRORUBZHMPCO-UHFFFAOYSA-N 0.000 description 1
- CHNUNORXWHYHNE-UHFFFAOYSA-N Oxadiazon Chemical compound C1=C(Cl)C(OC(C)C)=CC(N2C(OC(=N2)C(C)(C)C)=O)=C1Cl CHNUNORXWHYHNE-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- ZUQAPLKKNAQJAU-UHFFFAOYSA-N acetylenediol Chemical compound OC#CO ZUQAPLKKNAQJAU-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000000680 avirulence Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- WZDDLAZXUYIVMU-UHFFFAOYSA-N bromobutide Chemical compound CC(C)(C)C(Br)C(=O)NC(C)(C)C1=CC=CC=C1 WZDDLAZXUYIVMU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- XQNAUQUKWRBODG-UHFFFAOYSA-N chlornitrofen Chemical compound C1=CC([N+](=O)[O-])=CC=C1OC1=C(Cl)C=C(Cl)C=C1Cl XQNAUQUKWRBODG-UHFFFAOYSA-N 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229940071826 hydroxyethyl cellulose Drugs 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 229940071676 hydroxypropylcellulose Drugs 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- DEDOPGXGGQYYMW-UHFFFAOYSA-N molinate Chemical compound CCSC(=O)N1CCCCCC1 DEDOPGXGGQYYMW-UHFFFAOYSA-N 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- ASRAWSBMDXVNLX-UHFFFAOYSA-N pyrazolynate Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(=O)C=1C(C)=NN(C)C=1OS(=O)(=O)C1=CC=C(C)C=C1 ASRAWSBMDXVNLX-UHFFFAOYSA-N 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- MGLWZSOBALDPEK-UHFFFAOYSA-N simetryn Chemical compound CCNC1=NC(NCC)=NC(SC)=N1 MGLWZSOBALDPEK-UHFFFAOYSA-N 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Plant Pathology (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a herbicide for paddy fields, in particular to a water-suspended herbicide for paddy fields. Wherein the herbicidally active component is stably suspended in water in the form of ground particles having a particle size of less than 10 microns, the suspension having a viscosity of 180℃ and 500 centipoises (20 ℃) and an initial water surface spread rate of 4.0 cm/sec (20 ℃) and a surface tension of 23.0 to 32.0 dynes/cm (25 ℃). The herbicide is applied without diluting with a large amount of water or special equipment, and the container for holding the herbicide is shaken by hand, so that the herbicide required for a unit area of the paddy field is small in volume.
Description
The present invention relates to the weed killer herbicide that a kind of rice field is used, particularly be suspended in the active component in the water and a kind of herbicides for use in paddy of being mixed with, therefore do not need to dilute and just it can be sprayed into the rice field with big water gaging with the segmentation particulate forms.
Agricultural has various prescription with chemicals, wherein based on particulate, wettable powder and emulsion.Used herbicides for use in paddy then major part is an acinous.Why the latter generally uses, and its reason is that they do not need Special Equipment, just can apply with hand.Yet particulate may not be best prescription form, because its production cost height, executes and removes irregularly, and needs high dose.On the other hand, but this prescription of wet powder make by active component, diatomite (or other mineral matters) and surfactant are ground and mix.During use, need be suspended in the big water gaging, spray with form of suspension then.And dilution and sprinkling need a vat and a power spraye respectively.Therefore but wet powder seldom is used as the weed killer herbicide in rice field.
Emulsion is a kind ofly to be dissolved in organic solvent and the prescription made by active component and emulsifier.During use, need with in the big water gaging of its impouring so that its emulsification and disperse.The electronic atomizers spray of rare emulsion that is produced.But as wet powder, emulsion also seldom is used as the weed killer herbicide in rice field.Disclosed a kind of emulsion that needn't dilute with water just can spray into the rice field in the Japanese patent publication 26641/1981.When this emulsion was sprayed into the rice field, interior middle oil droplet just was dispersed on the water surface of rice field, so the active component in the oil droplet also is distributed in the water surface.The active component that can play herbicide effect so more evenly and promptly is distributed in the water surface.It just settles down later, and is inhaled into soil surface, thereby has prevented germination and the growth of weeds.The preceding emulsion of use need not emulsification again and is suspended in the water; And just can apply as long as with hand container is shaken the back.The emulsion that sprays into is easy to be dispersed on the water surface.That is to say that applying of this emulsion only need change the MIN work of expense.Although emulsion has above-mentioned these characteristics, shortcoming is that active component must be dissolved in the organic solvent that constitutes this kind emulsion to heavens.Here it is has limited the active component that can be used for this emulsion.In addition, as the organic solvent of emulsion solvent because of its inflammability, smell and irritating reason, not necessarily meet the requirements from the security standpoint of people and livestock.
In view of the above, therefore a kind of effective prescription with weed killer herbicide should possess following characteristic from the desirable new rice field of safety and energy-conservation viewpoint: contain a kind of active component that is insoluble in water the prescription; Prescription is a kind of liquid with good fluidity; Prescription needn't just can spray to the rice field with big water gaging dilution; After the sprinkling, prescription is dispersed in the water surface rapidly, thereby its activity component is evenly dispersed in the water, is adsorbed on soil surface then.The active component that the inventor carried out a series of researchs, enable weeding is dispersed in the water with higher concentration, to attempt to reach above-mentioned target.By the way, the component of poorly water-soluble is suspended with higher concentration and be dispersed in the water and the prescription that forms is called flowable prescription.This prescription generally uses at US and European, has replaced wettable powder and emulsion.Yet as wettable powder and emulsion, flowable prescription must the big water gaging of impouring in so that suspend and disperse, and the solution that is produced needs spray with power spraye.But, use a kind of aqueous suspension shape prescription that contains the higher concentration active component, and don't fail all the time to realize through a large amount of water-reducible ways.If there is a kind of herbicides for use in paddy of aqueous suspension shape can be as the above, just can be dispersed in the water surface equably after directly applying the water surface, then because its advantage, it will be a kind of very useful weed killer herbicide.That is the used weed killer herbicide volume in unit are rice field is very little; Do not need special equipment when using, it is also few to change the work that takes; And it was both nonflammable, again avirulence.Yet, with regard to aqueous suspension shape prescription, in fact be difficult to obtain such performance.The density of water slurry is generally greater than 1.0, and the density of emulsion that contains organic solvent is less than 1.0, because the former density height, so often in water, settle down immediately after using, rather than be dispersed on the water surface.Cause thus and apply uneven and the chemistry injury.In addition, needn't dilute the water slurry that just can use with big water gaging for a kind of, then it should have suitable flowability, can conveniently and apply (viscosity of usually emulsion is very low) equably.The preferable consumption of water slurry is that per 10 acres (1000 square metres) rice fields only are 500 to 1000 milliliters (content that depend on active component).So little consumption can be saved the labour when using.Desire to make so little consumption to play a role effectively, should be able on the water surface, expand rapidly with the water slurry that the droplet shape applies.And common water slurry (flowable prescription) is never considered its scalability, and this is a kind of new notion, discusses in the present invention for the first time.
Have found that only above-mentioned technical problem just can solve when aqueous suspension shape prescription has specific chemistry and physical property.
The inventor has carried out big quantity research to the aqueous suspension shape prescription with such character, has found the aqueous suspension shape prescription that a kind of new control weeds in paddy field is used finally, and this prescription needn't not need special-purpose sprayer just can use with big water gaging dilution yet; Promptly be dispersed in the water surface after applying immediately, and produce significant weeds control effect.The present invention finishes on the basic carbon of this discovery.
According to the present invention, then for the rice field provides a kind of aqueous suspension shape weed killer herbicide that contains low aqueous solubility activity of weeding component, described active component exists through the grated particle form less than 10 microns with the grain that is in the stable suspersion state.The flowability of this weed killer herbicide is if represent then to be 180 to 500 centipoises (20 ℃ the time) with viscosity, and is respectively more than or equal to 4.0 cels (temperature is 20 ℃) and 23.0-32.0 dynes per centimeter (temperature is 25 ℃) with the physical property that initial surface spreading rate and surface tension are represented.
The physical property of weed killer herbicide of the present invention adopts usually used method to measure.Its medium viscosity ties up to 20 ℃ and measures with Bu Shi rotational viscometers (for example Vismetron, VS-A I type is made by Toshiba System Co., Ltd) down, and used rotor is No. 2,30 rev/mins of rotating speeds.And surface tension is measured (for example CBVP-P tensiometer of being made by Kyowa Kaimen Kagaru Co., Ltd) with Wilhelmy ' s tensiometer.Initial water surface spreading rate is measured as follows: long and wide to be 1 meter, the degree of depth be in 10 centimetres the square shallow slot of polyvinyl chloride at one, with running water be charged to 5 centimetres dark, placing after 10 minutes, is that the circle letter that 7 centimetres, 1.8 centimetres of the degree of depth, the polypropylene materials that weigh 7 grams are made describes that device is placed on square groove water surface center gently with a diameter that 35 grammes per square metre things are housed.1 milliliter of pipette drops in the agent of a water suspension herbicidal from 1 centimetre of distant place of polypropylene containers at leisure from 5 millimeters height more than the water surface, measure the poly-third polyene container with stopwatch then and be subjected to the effect of weed killer herbicide expansion force and move 30 centimetres of required times, the survey time can calculate spreading rate by institute.Grain is through distributing with the antetype grain instrument (for example SA-CP2-20 type of being made by Shimadzu Seisakusho Co., Ltd) by analysis that disappears.
Aqueous suspension shape prescription of the present invention adopts the preparation of following method basically: the activity of weeding component that will be insoluble in water grinds in water with surfactant, water-soluble polymer and anti-aggregating agent prepared therefrom and mixes; Perhaps adopting to force to stir makes said components be dispersed in the water with the grated particle form.
The activity of weeding component that the present invention can use is not particularly limited, as long as it can tackle the weeds in rice field effectively, and is insoluble in water (less than 0.1%).Typical example is as follows: Lonster, field phenyltoluene ethyl carbamide, chlomethoxynil, Machete, Bai Laituoleqi (pretilachor), pyrazoles salt (pyrazolate) nitrofen (nitrofen bifenox), chlorine nitrofen (chlornitrofen), naphthoxy Phenylpropionamide, ordram, symetryne and bromine fourth thing (bromobutide).
Above-mentioned activity of weeding component can be prepared separately, and use mutually also can combine.The content of active component is 5～60% in a given prescription, depends on the dosage size.
Surfactant preferably should be the combination of a kind of anionic and a kind of nonionic.The former is dispersed in the water active component of the poorly water-soluble of wearing into particulate; The latter helps weed killer herbicide to expand on the water surface and makes surface tension reach 23.0～32.0 dynes per centimeter.Also can adopt the combination of two kinds of non-ionic surface surface-active agents such as wetting agent and dispersant.
Usually used anion surfactant is dialkyl group-sulfo group-sodium succinate (for example Sunmorin OT-70, the product of Sanyo Kasei Kogyo Co., Ltd).Usually all nonionic surface active agent comprise polyoxyethylene nonyl phenyl ester (hydrophilic lipophilic balance (HLB) is 13-16, and cloud point is more than 50 ℃) (Nonipol for example
#95-
#200, Sanyo Kasei Kagyo Co., Ltd product), (wherein the molecular weight of polyoxypropylene ethylene glycol is greater than 1750 for polyoxyethylene one polyoxypropylene ethylene glycol, and polyoxyethylene weight accounts for 40%) (Newpol PE-64 for example, 68,74,75 and 78, Sanyo KaseiKogyo Co., Ltd) and acetylenediol (for example Surfinol 104, be air products and chemical reagent Co., Ltd produce).
The preferable consumption of anion surfactant is a percentage by weight in the 0.5-0.3%(unit volume); And the preferable consumption of non-ionic surface active agent is a percentage by weight in the 0.5-5.0%(unit volume).The character of used active component is depended in the selection of surfactant.Excessive anion surfactant will cause the particles of active components gathering that grinds; And excessive non-ionic surface active agent can't further improve autgmentability.
The present invention is general, and used water-soluble polymer is a carboxymethyl cellulose.Other examples that can use are semi synthetic polymers, as hydroxy propyl cellulose and hydroxy ethyl cellulose glycan.After preferable carboxymethyl cellulose was water-soluble, its 1% viscosity in aqueous solution was 200-300 centipoise (at 25 ℃).The product of CMC Daisel 1150(Daisel Kagaku Kogyo Co., Ltd) is an example wherein.It is a key factor that the viscosity of afore mentioned rules should have the viscosity of 180-500 centipoise for weed killer herbicide of the present invention.Even carboxymethyl cellulose content also can the stable dispersion system less than 1%.Water-soluble polymer is not directly to be added in the prescription, and should just mix prescription after soluble in water.Importantly to avoid water-soluble polymer to form undissolved.
Can mix adjuvant in the weed killer herbicide of the present invention, as anti-aggregating agent prepared therefrom, antifreezing agent, preservative and defoaming agent.For instance, anti-aggregating agent prepared therefrom comprises hydrated magnesium silicate, the sour aluminium of pound [or naturally occurring clay mineral, as U.S.'s atlapulgite (attapulgite) and bentonite].Add 0.3-2.5%(weight) Attgel 150(Engelhardt Co., Ltd product) or Kunigel VA(Kunimine Kogyo Co., Ltd product) can produce good result.Third rare ethylene glycol or the rare ethylene glycol of second are 4.0～8.0%(weight as the addition of antifreezing agent); Addition as 35% formalin of preservative is a 0.3-1.0%(weight); And as the antifreeze E-20(Kao soap Co., Ltd product of defoaming agent) addition be 0.1-0.5%(weight).These adjuvants play stabilization to weed killer herbicide of the present invention.
Present invention is described referring now to following example, and these examples only are used to illustrate the present invention, rather than its scope is limited.
Example 1
Use domestic mixer with following batch mixes about 30 seconds, to prepare premix: CMC Daisel 1150 aqueous solution 390 grams of 0.8% weight concentration, Lonster 68 grams, Newpol PE-64 is 15 grams, Sunmorin OT-70 is 15 grams, Kunigel VA10 gram, third rare ethylene glycol 22.5 grams, anti-foam E-20 is 1 gram, and 35% formalin, 1.5 grams.Use the extraordinary model of wet milk Dyno-Mill(KDL then, make by WillyA.Backofen AG Maschinenfabrik Basel) premix is levigate, concrete operations are as follows: premix is sent into one 0.6 liter attrition mill with the flow of about 100 ml/min, the latter is equipped with bead 800 gram of 0.75-1.00 mm dia, with as grinding medium.In the Herbicidal composition that makes thus, the suspension grated particle the grain as follows through distributing: the particle less than 8.0 microns accounts for 95%, less than 5 microns account for 90%, less than 2.0 microns account for 75%, less than 1.0 microns account for 50%, and less than 0.5 micron account for 20%.The viscosity of this Herbicidal composition is 420 centipoises (20 ℃ time), surface tension 25.2 dynes per centimeter (25 ℃ time), and initial water surface spreading rate is 4.8 cels (20 ℃).
Example 2
Use domestic mixer with following batch mixes about 2 minutes, to prepare premix: CMC Daisel 1150 aqueous solution 375 grams of 0.4% weight concentration, 51 gram Lonsters, 110 gram tolyl toluene ethyl carbamides, 10 gram Kunigel VA, 10 gram Sunmorin OT-70,15 gram Newpol PE-68,22.5 the gram propyleneglycoles, the anti-foam E-20 of 1 gram, and the formalin of 1 gram 35%.By example 1 described method that premix is levigate then.The viscosity of the Herbicidal composition that makes thus is 330 centipoises (20 ℃), surface tension 24.9 dynes per centimeter (25 ℃), and the initial surface spreading rate is 4.5 cels (20 ℃)
Example 3
Use domestic mixer with following batch mixes about 2 minutes, to prepare premix: 43 gram Lonsters, 46.2 gram dregs of rice Lai Tuoleqi (pretilachor), CMC Daisel 1150 aqueous solution 362 grams of 0.8% weight concentration, 10 gram Kunigel VA, 15 gram Newpol PE-64,7.5 gram Surfinol 104,22.5 the gram propyleneglycoles, the anti-foam E-20 of 1 gram, and 35% formalin of 1.5 grams.By example 1 described method that premix is levigate then.Obtained thus Herbicidal composition is the complex system of a kind of suspension and milkiness shape, and its viscosity is 243 centipoises (20 ℃), surface tension 30.7 dynes per centimeter (25 ℃), and the initial surface spreading rate is 4.3 cels (20 ℃).
Table 1 is listed the various prescriptions (comprising the foregoing description) and the physical property thereof of aqueous suspension shape weed killer herbicide.Wherein the active component grain of listed various prescriptions is through all less than 10 microns.
Table 1 explanation:
Can notice from table 1, be numbered 105,107,108,110,203,204,205,303,304,305 and 307 sample, its viscosity, initial water surface spreading rate and surface tension do not meet the numerical value of the present invention's regulation.
Test 1
In this test, No. 104 samples are applied in the paddy field, to observe its extended mode in water.
Ploughed earlier, stir and smooth in a test rice field (27 acres), and centimetre dark with water logging to 4.After one day, No. 104 samples of 1370 grams that are contained in the bottle are applied the rice field with the spacing every 4 meters.When applying, the workman in the rice field while walking with hand moving bottle.Then, handle with formation plate in the rice field again.Apply preceding and apply after one hour and two hours, optional local water samplings in 5 places (flooding the water in rice field) are three times on the rice field, and with gc analysis (ECD).The result is as shown in table 2.
Table 2 explanation
Can notice from table 2, be dispersed on the rice field quickly and evenly after weed killer herbicide of the present invention applies.
Really test 2
This test is rapidly even in order to the active component expansion of checking weed killer herbicide of the present invention.
A diameter is 1 meter, and the circle letter that dark 15 centimetres polyvinyl chloride is made describes in the device and fill with running water, until 3 centimetres dark, placed then 20 minutes.Then continuously 0.9 gram weed killer herbicide is splashed into water surface center from 2 centimetres of eminences more than the water surface.Drip off back 20 minutes, putting into an internal diameter at leisure at any part of dried up center 20,30 and 40 centimeters is 6 centimetres, and high 10 centimetres glass circle letter is with water sampling.Sample is analyzed with gas chromatography [FID] by common mode.Gained the results are shown in table 3.
Table 3 explanation
As can be seen from Table 3, be dispersed in the water surface quickly and evenly after weed killer herbicide of the present invention splashes into.
Test 3
Effect and the chemistry injury of this test in order to estimate weed killer herbicide of the present invention.
Ploughed earlier, stir and smooth in a test rice field, and centimetre dark with water logging to 4.Yet with plate the rice field being divided into some length of sides is 3 meters square area, in each district, apply 300 gram particle shape compound fertilizers (N=15, P=15, K=10).Then finally stirred in one group of zone, and another group is not carried out, to understand the influence of finally stirring herbicidal effect and chemistry injury.Rice field after above-mentioned processing 2 days, rice transplanting by hand.After the rice transplanting 20 days, observe herbicidal effect and chemistry injury.
This test is adopted table 1(example 1 to example 3) listed weed killer herbicide.The weed killer herbicide of contrast usefulness is as follows: commodity Lonster emulsion (Ronstar), Lonster+tolyl toluene ethyl carbamide particulate (Soyalon), Lonster+contain 8%(weight) Lonster, 8%(weight) Bai Laituoleqi (pretilachlor) 15%(weight) surfactant and 69%(weight) Bai Laituoleqi (pretilachlor) emulsion of organic solvent.
Through the zone of finally stirring, it the results are shown in table 1 to table 3; And the results are shown in table 4 and table 5 without the zone of finally stirring.
Above table clearly illustrates that all physical propertys meet the weed killer herbicide of the present invention's regulation, and then its weeding ratio is parity with or superiority over common milkiness shape or granular herbicide, and does not have the chemistry injury.In addition, the good herbicidal effect that is produced with finally whether stir irrelevant.
Weed killer herbicide of the present invention need not with big water gaging dilution as long as just can apply to the rice field with the hand moving container that fills weed killer herbicide simply.And can apply by the suitable dropper that is arranged on the tractor of advancing in the rice field.After applying with said method, weed killer herbicide of the present invention can be dispersed in the water surface rapidly.Continue after, active component settles down in water, and is adsorbed on soil surface, forms the soil that one deck stable treated is crossed.The scalability of the weed killer herbicide initial extension rate representation of measuring as stated above.Can determine the evenly degree of absorption of soil surface by CONCENTRATION DISTRIBUTION in mensuration herbicidal effect and rice field or the tank.
Claims (1)
- A kind of rice field water suspension herbicidal agent that contains the activity of weeding component that is insoluble in water, wherein said active component exists with the little 10 microns grated particle form of particle diameter that is in the stable suspersion state, the viscosity of described weed killer herbicide is 180-500 centipoise (20 ℃), initial water surface spreading rate is more than or equal to 4.0 cels (20 ℃), and surface tension is 23.0-32.0 dynes per centimeter (25 ℃).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224905A JPS6287501A (en) | 1985-10-11 | 1985-10-11 | Herbicide for paddy field |
| JP60-224905 | 1985-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86106679A true CN86106679A (en) | 1987-04-08 |
| CN1031776C CN1031776C (en) | 1996-05-15 |
Family
ID=16820992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86106679A Expired - Lifetime CN1031776C (en) | 1985-10-11 | 1986-10-10 | Herbicide for paddy fields |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS6287501A (en) |
| KR (1) | KR950002844B1 (en) |
| CN (1) | CN1031776C (en) |
| EG (1) | EG17981A (en) |
| OA (1) | OA08427A (en) |
| PH (1) | PH23177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034203C (en) * | 1988-08-18 | 1997-03-12 | 粟贵武 | Prodn. of pesticide for use in rice field-membrane form |
| CN101316511B (en) * | 2005-11-25 | 2013-06-05 | 拜尔作物科学股份公司 | Aqueous suspension-concentrates of oxadiazole herbicides |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043502C (en) * | 1989-09-28 | 1999-06-02 | 石原产业株式会社 | Expandible herbicidal aqueous suspension concentrate |
| JP2546200B2 (en) * | 1991-02-20 | 1996-10-23 | 東ソー株式会社 | Aqueous suspension formulation and spraying method for weeding before paddy field |
| US5496845A (en) * | 1994-05-25 | 1996-03-05 | American Cyanamid Co. | Suspension concentrate compositions of arylpyrrole insecticidal and acaricidal agents |
| JP3538522B2 (en) * | 1997-05-09 | 2004-06-14 | 北興化学工業株式会社 | Aqueous suspension preparation package and spraying method thereof |
| JP4561941B2 (en) * | 1999-08-04 | 2010-10-13 | 日産化学工業株式会社 | Suspension composition and spraying method |
| ES2294128T3 (en) * | 2001-04-27 | 2008-04-01 | Ishihara Sangyo Kaisha, Ltd. | METHOD TO PREVENT THE CONSOLIDATION OF A CHEMICAL AGRICULTURAL ACTIVE INGREDIENT. |
| JP2003012404A (en) * | 2001-04-27 | 2003-01-15 | Ishihara Sangyo Kaisha Ltd | Method for preventing agrochemical active ingredient from solidifying |
| CN105475300A (en) * | 2015-12-24 | 2016-04-13 | 安徽美兰农业发展股份有限公司 | Compound missible oil containing oxadiazon and simetryne and preparation method thereof |
| JP2021054749A (en) * | 2019-09-30 | 2021-04-08 | 第一工業製薬株式会社 | Granular agrochemical composition and agrochemical pack material |
| WO2023090433A1 (en) * | 2021-11-22 | 2023-05-25 | バイエルクロップサイエンス株式会社 | Agrochemical composition, information processing device, and computer program |
-
1985
- 1985-10-11 JP JP60224905A patent/JPS6287501A/en active Pending
-
1986
- 1986-10-09 EG EG637/86A patent/EG17981A/en active
- 1986-10-10 OA OA58975A patent/OA08427A/en unknown
- 1986-10-10 KR KR1019860008455A patent/KR950002844B1/en not_active IP Right Cessation
- 1986-10-10 PH PH34346A patent/PH23177A/en unknown
- 1986-10-10 CN CN86106679A patent/CN1031776C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034203C (en) * | 1988-08-18 | 1997-03-12 | 粟贵武 | Prodn. of pesticide for use in rice field-membrane form |
| CN101316511B (en) * | 2005-11-25 | 2013-06-05 | 拜尔作物科学股份公司 | Aqueous suspension-concentrates of oxadiazole herbicides |
Also Published As
| Publication number | Publication date |
|---|---|
| EG17981A (en) | 1991-08-30 |
| KR870003688A (en) | 1987-05-04 |
| PH23177A (en) | 1989-05-19 |
| JPS6287501A (en) | 1987-04-22 |
| OA08427A (en) | 1988-06-30 |
| CN1031776C (en) | 1996-05-15 |
| KR950002844B1 (en) | 1995-03-27 |
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