CN1043402C - Herbicide tablets or capsules for paddy field application by throwing them into water - Google Patents
Herbicide tablets or capsules for paddy field application by throwing them into water Download PDFInfo
- Publication number
- CN1043402C CN1043402C CN90107614A CN90107614A CN1043402C CN 1043402 C CN1043402 C CN 1043402C CN 90107614 A CN90107614 A CN 90107614A CN 90107614 A CN90107614 A CN 90107614A CN 1043402 C CN1043402 C CN 1043402C
- Authority
- CN
- China
- Prior art keywords
- tablet
- capsule
- water
- paddy field
- herbicidal composition
- 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.)
- Expired - Lifetime
Links
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- 238000010813 internal standard method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Chemical compound CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 235000011044 succinic acid Nutrition 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 125000002769 thiazolinyl group Chemical group 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
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
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
-
- 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
- A01N25/08—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 solids as carriers or diluents
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicinal Preparation (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The invention provides a weed-controlling tablet or capsule containing a sulfonylurea herbicidal component, a surfactant, a foaming agent and a binder in amounts to enable the dissolution of whole components in the water of a paddy field and simply throwing the tablet or capsule into a paddy field.
Description
The present invention relates to control the weeding tablet or the capsule that are easy to use of paddy field weed, and relate to the simple and easy method of using this class weeding tablet or capsule.
The method of control paddy field weed in the past, especially in the control method for weed in paddy field paddy rice initial planting and mid-term, general employing is scattered has granule or the fine granule that herbicidal composition makes with fine powder solid carrier and other auxiliary agent, perhaps adopt wetting powder to dilute the method for using then with a large amount of water.In addition, can mention a kind of method that does not adopt the fine powder solid carrier, wherein herbicidal composition is dissolved in the organic solvent emulsion to be applied, perhaps having the suspending concentrate of the broken herbicidal composition of fine powder, and disperse and be suspended in the water after use.
Yet, particulate application agent, fine granule or wettable powder, the operator must be on foot around this weed killer herbicide of paddy field application by throwing them, for example: common per 10 ares of particles of using 3 to 4 kilograms, carry the heavy dispenser or the particulate dispersion device that contain weed killer herbicide, perhaps will be with large-sized cantilever style shower nozzle (being called the Niagara fire hose) from ridge to scattering equably between the paddy field.
So, the carrying of weed killer herbicide and scatter not only painstaking but also usually the paddy rice seedling is caused infringement and harm their growth.Use missible oil or suspending concentrate, the weight of weed killer herbicide can be reduced to a certain degree, and like this, large-scale dispenser may not need, but it still needs the container with the weed killer herbicide that can spray predetermined quantity.In addition, in order to scatter weed killer herbicide equably, the operator still needs to use on foot around paddy field.
The objective of the invention is to overcome this class shortcoming of conventional method, and a kind of straightforward procedure of using weed killer herbicide that need not with special-purpose dispenser is provided.
So, the invention provides a kind of weeding tablet or capsule of paddy field application by throwing them, the quantity that it is included in paddy field application by throwing them all is dissolved in sulfonylurea herbicidal composition, surfactant, blowing agent and the binding agent of the quantity in the water in field basically.This tablet or capsule can comprise other herbicide components of the quantity that all is dissolved in basically in the water in field.
In addition, the invention provides a kind of method of controlling paddy field weed, it comprises that above-mentioned tablet or capsule are applied to the paddy field of irrigation with per 10 ares from 10 to 200 parts of tablets or capsule and per 10 ares of gross weights from 200 to 1500 gram tablets or capsule, and water in field all dissolves and disperse the herbicide components of this quantity basically.
Below, the present invention will describe in detail by preferred object lesson.
In the present invention; the regulation of " all being dissolved in the quantity of water in field in the quantity of paddy field application by throwing them basically " that is used for sulfonylurea herbicidal composition or other herbicidal composition is as follows: there is not any substantial toxicity in the herbicidal effect that the herbicidal composition of the suitable quantity of employing provides to the paddy rice seedling; that is: the actual quantity of the herbicidal composition of using; suppose the quantity that all is dissolved in the water in field; the concentration of the herbicidal constituents in water in field is not more than herbicidal composition 25 ℃ of solvability in water.
The specific example of sulfonylurea herbicidal composition comprises:
N-[(4; 6-dimethoxypyridin-2-yl) amino carbonyl]-3-methyl-5-(2-chloro-22-difluoroethoxy-4-isothiazole sulfonamide (being designated hereinafter simply as A-1); methyl-α-(4; 6-dimethoxypyridin-2-base-carbamoyl sulfamoyl)-neighbour-methyl benzoic acid (salt) ester (being designated hereinafter simply as A-2); N-[(4; 6-dimethoxypyridin-2-yl) amino carbonyl]-4-ethoxy carboxyl-1-methyl-2-pyrazoles sulfonamide (being designated hereinafter simply as A-3); N-(2-chlorine imidazoles [1.2-a] pyridin-3-yl-sulfonyl)-N '-(4; 6-dimethoxy-2-pyridine radicals) urea (being designated hereinafter simply as A-4) and 3-(4.6-dimethoxy-1; 3,5-triazine-2-yl)-and 1-[2-(2-methoxy ethoxy) phenyl sulfonyl] urea (is designated hereinafter simply as: A-5)
Described other herbicidal composition comprises triazines, such as:
Two (the ethylamino)-sym-triazines (being designated hereinafter simply as B-1) of 2-methyl sulphur-4.6-and 2-methyl sulphur-4-ethylamino-6-(1.2-dimethyl propyl amino)-sym-triazine (being designated hereinafter simply as B-2); Quinoline carboxylic acid, such as: 3,7-two chloro-8-Quinoline Carboxylic Acids (being designated hereinafter simply as B-3); The N-anilide, such as: 2-chloro-2 ', 6 '-diethyl-N-(the 2-third oxygen ethyl) antifebrin (being designated hereinafter simply as B-4), N-[2 '-(3 '-methoxyl group)-thenyl]-N-chloracetyl-2,6-dimethyl anilide (being designated hereinafter simply as B-5) and 2 ', 6 '-diethyl-N-[(2-is suitable-butoxy) and methyl]-2-chloroacetanilide (being designated hereinafter simply as B-6); And S.S.-dimethyl-2-difluoromethyl-4-(2-methyl-propyl)-6-(trifluoromethyl)-3.5-pyridine dithiocarboxylic esters (being designated hereinafter simply as B-7).
From the solvability water with to the viewpoint of the effects of rice and weeds, triazines and quinoline carboxylic acid are preferable.
With regard to above-mentioned sulfonylurea herbicidal composition, for example: herbicidal composition (A-2) the actual amount in rice cultivation initial stage to mid-term be generally per 10 ares for from 5 to 7.5 grams.In this case, suppose to irrigate the depth of water and be 5 centimetres the degree of depth, the concentration in paddy field will be for from 0.1 to 0.15ppm (actual dosage), and A-2 is 8ppm 25 ℃ solvability.So A-2 is in the scope of sulfonylurea herbicidal constituents of the present invention.On the other hand; nearest reality is as the example of the herbicidal composition of herbicide for paddy field; as 4-(2; 4-dichloro-benzoyl base)-1.3-dimethyl-5-phenacyl oxygen pyrazoles (being designated hereinafter simply as pyrazoxyfen) the actual amount in rice planting initial stage to mid-term be generally per 10 ares from 180 to 300 grams, and its concentration in the water in field of irrigating 5 centimetres of the depth of waters will be for from 3.6 to 6ppm (actual doses).And pyrazoles oxygen benzene is 0.9ppm 25 ℃ solvability.Therefore, pyrazoxyfen is not in the scope of herbicidal composition of the present invention.In this respect, compare with pyrazoxyfen and in tablet or capsule, to contain a spot of weed killer herbicide A-2 composition and to be easy to preparation, moreover, when the product of this preparation is applied to the rice field, owing to its high being easy to of solvability dissolved and spread widely, it will disperse equably thus.And pyrazoxyfen solubilizing poorly and be difficult to disperse, it will fall to the bottom of paddy rice water in field with solid state.
As conferring herbicide composition of the present invention or the hydrophilic surfactant of binding agent, comprise for example anion surfactant, such as: dodecyl sodium sulfate, dialkyl group succinic acid sulfonate, dialkyl group amber sodium sulfonate, lauryl sodium sulfate, higher alcohol sulfate, sodium lignin sulfonate, polyoxyethylene alkylaryl ether sulphate, sodium formaldehyde condensation products, dinaphthyl methane sulfonate, alkylaryl sulfonates, sodium alklyarylsulfonate and Negel; With non-ionic surface active agent such as polyoxyethylene nonylplenyl ether; polyoxyethylene oleoyl ether; polyoxyethylene oleate; polyoxyethylene alkylaryl ether; polyoxyethylene alkyl ether; the polyoxyethylene sorbitan monolaurate; polyoxyethylene fatty acid ester; polyoxyethylene styrene phenyl ether; dehydrated sorbitol mono-fatty acid ester; sorbitan monolaurate; sorbitan monostearate; NOFABLE SO-992; sorbitan hexadecane acid esters; acetenyl ethylene glycol and two glyceryl borate monostearates.These surfactants can be separately or are used with the mixture of two kinds or multiple different cultivars.In addition, anion and non-ionic surface active agent can use with a kind of mixture.
Further, have found that when some surfactant is applied to tablet of the present invention or capsule formula, as the decomposition of the sulfonylurea compound of main herbicidal composition with controlled.The special surfactant of this class is a kind of free from 1 to tens oxyalkylene group such as oxyethylene group in structure or propylene oxide group and comprise other a kind of form, as an example, as above-mentioned polyoxyethylene thiazolinyl aryl ether sulphate and polyoxyethylene nonylplenyl ether.In addition, even can adopt the surfactant that contains oxyalkylene group to combine and in a scope, do not quicken the sulfonylurea herbicidal composition and decompose with other surfactant.
Blowing agent in the present invention is the composition of acidic materials and alkaline matter, and they can react generation gas in the presence of water.This acidic materials itself can show acidity or show in being dissolved in water the time acid.As an example, it comprises such as organic acids such as citric acid, tartaric acid, oxalic acid, succinic acid, maleic acid, phthalic acid, fumaric acid and adipic acids; Such as: acid salt such as sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate (ADP) and broken potassium hydrogen phthalate and such as alum salt such as arcanite and ammonium alums.Alkaline matter for example comprises such as carbonate such as sodium carbonate, potash, calcium carbonate, magnesium carbonate and aluminium carbonates; Such as: acid carbonates such as sodium bicarbonate and saleratus; And such as: percarbonate such as SODIUM PERCARBONATE.
Binding agent in the present invention be used for structural constituent particle bonding and preferentially for water miscible.As an example, it can be carboxymethyl cellulose or its salt, dextrin, polyethylene glycol, polyvinyl alcohol, polyolefin diols, lignosulfonates, gum Arabic, gelatinized corn starch, other kind of starch or sugar.Further, the binding agent among the present invention can not be binding agent and can present attachment function person during at adhesive structure composition particle usually.As this class binding agent, as an example, can mention a kind of acidic materials such as stearic acid, succinic acid, adipic acid or phosphoric acid, or its esters; Or a kind of alkaline matter such as sodium carbonate or sodium bicarbonate.
Similar above-mentioned surfactant, in binding agent, some has the decomposition of control sulfonylurea.Compound as this class binding agent has free oxyalkylene group in structure, can mention such as polyethylene glycol, polyvinyl alcohol, polyolefin diols.Yet, even can adopt this class binding agent not quicken the decomposition of sulfonylurea compound within the specific limits.
Surfactant, blowing agent and selection of binder depend on the type of herbicidal composition and the bond properties of whole preparations.In fact, suitable combination need determine on the basis by trial and error procedure.
Weeding tablet or the capsule that is applied to paddy field of the present invention comprises sulfonylurea composition, surfactant, blowing agent and binding agent, and further can comprise other herbicidal composition.As an example; they comprise from 0.1 to 20 part of weight, preferably from 1 to 10 part of weight, more preferably from the surfactant of 1 to 5 part of weight, from 1 to 800 part of weight, preferably from 5 to 100 parts of weight, more preferably from the blowing agent of 5 to 25 parts of weight and from 0.1 to 20 part of weight, preferably from 0.2 to 10 part of weight, more preferably from the adhesive of 0.4 to 1.5 part of weight above-mentioned sulfonylurea composition to 1 part of weight.In addition; described other herbicidal composition can be bonded to the sulfonylurea herbicidal composition to 1 part of weight with the quantity from 0.5 to 100 part of weight; and in this case; surfactant, blowing agent and binding agent can be above-mentioned illustrated identical scope to the ratio of whole herbicidal compositions.Certainly, this ratio is as surpassing the scope of the above-mentioned covering of the present invention, as long as but obtain required effect
Tablet of the present invention or capsule can contain solid carrier and other agricultural adjuvant is added in the mentioned component.Further, they can at random contain the herbicidal composition that is different from above-mentioned herbicidal composition of the present invention, bactericide, insecticide, plant growth regulator or fertilizer element be not as long as damage dissolubility and the dispersiveness of herbicidal composition of the present invention in water basically.
Solid carrier can be fine powder such as kaolin, talcum powder, potter's clay, bentonite or the fine-powdered silica of mineral; A kind of mineral salt such as anhydrous sodium sulfate, or organic substance is as the urea element.Described other agricultural adjuvant comprises a kind of solvent commonly used, anti-decomposition agent, toxicity depressant, dispersion stabilizer, disintegrant and a kind of in drying prescription.Their quantity does not usually limit.Yet usually solid carrier be to be from the ratio of 0.1 to 20 part of weight to the entire quantity of tablet or capsule from 0.1 to 50 part of weight and described other agricultural adjuvant.
Tablet of the present invention or capsule usually can be by the following method or its similar method easily prepare.At herbicidal composition is the situation of solid, usually grinds it in advance improving its dissolubility and dispersiveness in water, and its is formed has particle size is preferably 1～100 μ m from 1 to 200 μ m fine grained.As the method for producing tablet, as an example, usually herbicidal composition is mixed simultaneously with surfactant, blowing agent and binding agent, the component arbitrarily that perhaps is pre-mixed is mixed with remaining component, to obtain the homogeneous mixture of all components, pulverize then this mixture to particle size from 1 to 200 μ m and with pelleter with the mixture of this pulverizing of usual method compression forming to obtain tablet.Herein, solid carrier or other agricultural conditioning agent are right when adopting, and they can evenly mix in advance and be ground into wetting powder with herbicidal composition and surfactant, mix with blowing agent and binding agent then.The method of this production tablet suitably effect and being easy to of conversion weed killer herbicide is considered the change of filling a prescription.Tablet can form different shape and size, as an example, is plate-like, avette tabular curved (angle) tabular, rod shape, spherical or oval spherical, depends on pelleter or produces their method.The shape of tablet does not influence its herbicidal effect basically.So they can have Any shape, size and weight.Yet from Herbicidal composition and the effect of using, they have plate-like and have from 1 to 5 cm diameter, 0.2 to 3 centimetre of thickness and heavy 1 to 150 gram for preferable.As an example, the production method of capsule of the present invention can comprise mixed herbicide composition equably, surfactant, blowing agent and binding agent, if desired, add solid carrier or other agricultural adjuvant, mix equably and pulverize it, the mixture pelleting of pulverizing is formed the particle that has from the particle size of 1 μ m to 1.5mm, grain packing is gone in the capsule of water soluble dyes or gel system, perhaps the mixture of above-mentioned pulverizing need not selected grain and be filled in the capsule, these capsules can have identical shape of above-mentioned tablet or spherical or ellipticity and can have virtually any size and weight.Yet, having 1 to 10 centimetre of 1 to 5 cm diameter, length, the ellipticity that weighs 1 to 150 gram is preferable.Further, capsule of the present invention comprises with water-soluble film such as the mixture or the wetting powder of water-soluble cellulose or the above-mentioned pulverizing of gel encapsulation, and need not be filled in the capsule, and these additional preparations are as described above.
When being applied to paddy field, tablet of the present invention or capsule contact with water and produce gas, enter in the water in field so herbicidal composition will easily flow out, because the effect of surfactant, this herbicidal composition easily spreads and disperses in the water inlet.So, when tablet of the present invention or capsule are applied to paddy field, herbicidal composition entire quantity basically can easily dissolve and be dispersed in the water in field, and herbicidal composition can be dispersed in the water in field equably, for example, several hours in 25 hours, weeds can be controlled equably and paddy rice are not had reaction.
Use from 10 to 200 tablets or capsules for per 10 ares with weeds in tablet of the present invention or the capsule control paddy field, or from the tablet or the capsule of 200 to 1500 gram gross weights.If depart from this quantitative range basically, from herbicidal effect or toxicity or from using the viewpoint of the required basic work of operation, this is unnecessary.Preferable application process does not usually limit, because this depends on the preparation method or the size of tablet or capsule, the perhaps type of herbicidal composition, surfactant, blowing agent, binding agent and other additive and ratio.Yet, can use 5 to 150 gram herbicidal compositions and be quantity for per 10 ares from 0.05 to 15 gram divided by each tablet or capsule, draw per 10 ares and use this class tablet or capsule is 10 to 100.So this class tablet or capsule can be per 10 to 100 meters
2Use 1 tablet or capsule.Thereby the respective regions that this tablet or capsule can be put between ridge and the rice field is used, and can oversimplify and using conveniently than traditional weed killer herbicide so use.
In paddy field in the situation of weeds by the control of tablet of the present invention or capsule, when the initial stage of planting at paddy rice to mid-term, promptly Bo Zhong rice after rice seedlings were transplanted 5 to 15 days or during behind the rice growing of directly sowing 10 to 20 days, use, can obtain optimum efficiency.Yet tablet and capsule can not used during other of problem as long as herbicidal effect and toxicity do not taken place.Further, tablet of the present invention or capsule can at first dissolve or be dispersed in the water of suitable quantity, then this solution or dispersion liquid are applied to the rice field to obtain the required effect of herbicidal effect and toxicity aspect.
Below, the present invention will elaborate by specific embodiment.Yet, should be appreciated that these embodiment and do not mean that restriction the present invention.In following embodiment, " umber " is " parts by weight "
The preparation of expandable mixtures:
With 42.4 parts of succinic acid (succinic acid), 5.2 (Dai-ichiKogyo Sciyaku Co., Ltd makes part carboxymethyl cellulose, trade name is Ccllogen P R), 31.4 parts of sodium bicarbonate and 21.0 parts of sodium carbonate mix equably and obtain expandable mixtures A by microspecimen grinder [thin river industry (strain) is made, and trade name is the AP-S type] micronizing.
In above-mentioned preparation embodiment 1, in the mixture before micronizing, evenly mix 0.5 part of dyestuff (Edible Blue No.1, Tokyo changes into (strain) and makes), prepare foamable mixture B with same method in the above-mentioned embodiment of preparation 1
The preparation of the tablet of tablet A to P and contrast (a) to (g):
Example of formulations 1
0.46 part of herbicidal composition A-1 and 3.34 parts of another herbicidal composition B-3 are ground to form the degree of particle diameter from 5 to 10 μ m in advance in advance in mortar, with 3.8 parts contain 50% Empilan NP and 50% thin silica powder [Dikssol W-92, the first industrial pharmacy (strain) is made] mixture, and 92.4 parts of above-mentioned foamable mixture A mix, and the product that obtains pulverizing by microspecimen grinder (aforesaid) micronizing.With the 48.2 gram crushed materials that obtain thus, with tablet press machine in 150 to 160 kilograms per centimeter
2Compression moulding obtains the tablet A (48.0 gram) of 5 centimetres of diameters, 1.6 centimetres of thickness under the pressure.
Example of formulations 2
Except adding 2% dyestuff (Edible Blue No.1 of above-mentioned example of formulations 1 gross weight in the mixture before pulverizing, as described above) outside, with the identical method of above-mentioned example of formulations 1, this 38.6 gram crushed material is obtained the tablet B (38.4 restrain) of 5 centimetres of diameters, 1.3 centimetres of thickness with tablet press machine compression moulding.
Example of formulations 3
With the same procedure of above-mentioned example of formulations 1,10.7 gram crushed materials are obtained the tablet C of 2.5 centimetres of diameters, thickness 0.8 centimetre (10.5 gram) with tablet agent compression moulding.
Example of formulations 4
Wettable powder with 37.9 parts comprises: 102 parts of herbicidal composition A-1,8.8 part another herbicidal composition B-3,3.0 part polyoxyethylene alkylaryl ether acid hydrochlorate (Sorpol5039, east nation's chemical industry (strain) is made), 2.0 part naphthalenesulfonic acid-formaldehyde condensate (Laveli FAN, first worker comes pharmacy (strain) manufacturing), 6 parts thin silica powder (Carplex, Shionogi.Co.Ltd. make) and the crushed material of 79.0 parts of kaolin and sericite mixture, and 62.1 parts of above-mentioned foamable mixture A, 10.7 gram crushed materials are obtained having the tablet D (10.5 gram) of 0.8 centimetre of 2.5 centimetres of diameters and thickness with the same method of above-mentioned example of formulations 1 by tablet press machine compression moulding.
Example of formulations 5
Tablet E has 5 centimetres of diameters and thickness 1.6 centimetres (48.0 grams) makes with same method with the gram of 48.2 in the above-mentioned example of formulations 4 crushed material.
Example of formulations 6
With 0.52 part of herbicidal composition A-2,3.3 parts of another herbicidal constituents B-3,3.85 part Dikssol W-92 (as mentioned above) and 92.3 parts of above-mentioned expandable mixtures A restrain the tablet F (48.0 gram) that the crushed material compression mouldings obtain 5 centimetres of diameters, 1.6 centimetres of thickness with above-mentioned example of formulations 1 identical method with 48.2.
Example of formulations 7
3 8.5 parts of wettable powder comprise 1.35 parts of weed killer herbicide composition A-2,8.65 part another weeding composition B-3,3.0 parts of Sorpol 5039 (aforesaid), 2.0 parts of Lavelin F AN (aforesaid), 79.0 parts of sericites of 6.0 parts of Carplex (aforesaid) (aforesaid) are with 61.47 parts of above-mentioned expandable mixtures A, with the identical method of above-mentioned example of formulations 1,48.2 these crushed material compression mouldings of gram are obtained the tablet G (48.0 gram) of 5 centimetres of diameters, 1.6 centimetres of thickness.
Example of formulations 8
With 0.455 part of herbicidal composition A-1,3.34 parts of another herbicidal composition B-3,1.53 parts of other weed killer herbicide composition B-1,5.33 parts of Dikssol W-92 (aforesaid) and 89.36 parts of above-mentioned mixture A that foam, with the identical method of above-mentioned example of formulations 1, this 48.2 gram crushed material compression moulding is obtained the tablet G of 5 centimetres of diameters, thickness 1.6 centimetres (48.0 grams).
Example of formulations 9
53.19 part wettable powder comprises: 0.85 part of weed killer herbicide composition A-1,6.27 parts of another herbicidal composition B-2,2.87 parts of other herbicidal composition B-1,79.0 parts of sericites of 2.0 parts of Lavelin FAN of 3.0 parts of Sorpol5039 (aforesaid) (aforesaid) (aforesaid) and 46.81 parts of above-mentioned foamable mixtures obtain 48.2 gram crushed material compression mouldings with example of formulations 1 identical method the tablet I (48.0 gram) of 5 centimetres of diameters, 1.6 centimetres of thickness.
Except 38.08 parts of above-mentioned mixture A that foam, same procedure with above-mentioned example of formulations 2, with 30.96 parts of pyrazoxyfens and 30.96 parts of Dikssol W-92 (aforesaid) mixing and pulverizing, 38.6 these crushed materials of gram are obtained the contrast tablet A (38.4 gram) of 5 centimetres of diameters, 1.6 centimetres of thickness by tablet press machine compression moulding.
Example of formulations 10 to 14 and Comparative formulation embodiment 2 to 4:
0.2 part of weed killer herbicide composition A-3 and 3.3 parts of another weed killer herbicide composition B-3 are used mortar precomminution.Again with 3.5 parts of tables 1 in surfactant, 88.0 parts of above-mentioned foamable mixture B and 5 parts of magnesia of explanation mix and pulverize once more and obtain crushed material.With 4.05 the gram these crushed materials by tablet press machine in 150 to 160 kilograms per centimeter
2Pressure under, compression moulding obtained the tablet (4.0 gram) of 2 centimetres of diameters, 0.8 centimetre of thickness in 2 minutes.
Table 1
| Embodiment | Sample | Surfactant |
| Example of formulations 10 | Tablet J | Sorbitan monolaurate (Sorgengo supports the garden by first industry (strain)) |
| Example of formulations 11 | Tablet K | NOFABLE SO-992 (Sorgengo is made by first industry (strain)) |
| Example of formulations 12 | Tablet L | Sorbitan single-hard ester acid ester (Sorgen 50, made by first industry (strain)) |
| Example of formulations 13 | Tablet M | Sodium lignin sulfonate (Sorpol 9047K is made by Toho chemical industry Co., Ltd.) |
| Example of formulations 14 | Tablet N | Naphthalene sulfonic acids condensation product (Runox 1000c is made by Toho chemical industry Co., Ltd.) |
| The example of | The tablet (b) of contrast | Polyoxyethylene sorbitan monolaurate (Sorgen TW-20) is made by first industry (strain)) |
| The example of | The tablet (c) of contrast | Polyoxyethylene alkylaryl ether sulphate (Sorpol 5039 is made by Toho chemical industry Co., Ltd.) |
| The example of formulations 4 of contrast | The tablet (d) of contrast | The hot phenyl ether of polyoxyethylene (Noigem EA92 is made by first industry (strain)) |
Example of formulations 15
With 0.21 part of weed killer herbicide composition A-3,3.32 parts of another weeding composition B-3,3.54 parts of Sorgen 90 (aforesaid), 5.00 parts of magnesia, 0.44 part of dyestuff (EdibleBlue No.1 is aforesaid) and 87.49 parts of above-mentioned foamable mixture A mix and by minute sample grinder fine powder broken (as described above) to obtain crushed material.Restrain these crushed materials by pelleter in 150 to 160 kilograms per centimeter with above-mentioned 4.05
2Compression moulding obtained 2 centimetres of diameters, 0.8 centimetre of tablet of thickness (4.0 gram) in 2 minutes under the pressure.
Example of formulations 16
Except replace the Sorgen 90 (aforesaid) in the example of formulations 15 with Sorgen 50 (aforesaid), prepare the tablet (4.0 gram) of 2 centimetres of diameters, 0.8 centimetre of thickness with example of formulations 15 identical methods.
Example of formulations 17
(01 part of other herbicidal composition B-7 pulverizes in mortar in advance, mixes the above-mentioned mixture B and pulverizing to obtain crushed material in mortar once more of foaming of 4.66 parts of Sorgen 50 (as described above), 5.00 parts of magnesia and 85.68 parts again with 0.22 part of herbicidal composition A-3,3.43 parts of another herbicidal composition B-3 and 1..
Under the pressure of 4.05 these crushed materials of gram by pelleter in 150 to 160 kilograms per centimeter, compression moulding obtained the tablet (4.0 gram) of 2 centimetres of diameters, 0.8 centimetre of thickness in 2 minutes.
Example of formulations 18
Except replace with 2.90 parts of herbicidal composition B-5 in above-mentioned example of formulations 17 other herbicidal composition B-7, replace 4.66 parts of Sorgen 50 (as described above) and, prepare the tablet (4.0 restrain) of 2 centimetres of diameters, 0.8 centimetre of thickness with the identical method of above-mentioned example of formulations 17 with 6.55 parts with 85.88 parts of above-mentioned foamable mixture B of 81.90 parts of replacements.
Example of formulations 19
Except replacing other the weeding composition B-7 described in the above-mentioned example of formulations 17 to replace 4.66 parts of Sorgen 50 (aforesaid) with 5.21 parts of other herbicidal composition B-6 and replacing 85.68 parts of above-mentioned foamable mixtures with 77.28 parts, prepare the tablet (4.0 restrain) of 2 centimetres of diameters, 0.8 centimetre of thickness with example of formulations 17 identical methods with 8.86 parts.
In the accompanying drawings:
Fig. 1 is the round pond of cement system, and center, circle pond is the cylinder of 0.5 meter radius, and some W-1 is point, the some W-1 to W-3 of tablet entry, X-1 to X-3, and Y-1 to Y-3 and Z-1 to Z-3 are the point of sampling.
Fig. 2 shows a paddy field, and wherein W-1 to C-3 is the point of tablet entry, and W-1, X and Y get the point of water in field sample.
Fig. 3 shows a paddy field, and wherein W-1, W-2 and W-3 are the point of tablet entry, and some X is kind of the point of the living nutgrass flatsedge of plantation (Cyperus serotinus Rottb).
The test region line that Fig. 4 limits for the wood frame with 1 meter * 4 meters * 20 centimetres (height) sizes, its mid point W is the point of tablet entry, and X and Y get the point of water in field.
Experimental example 1 (dispersivity test-I)
The cylinder that has 0.5 meter of a radius at the center, pond of cement system injects the water of 5 centimetres of degree of depth in as the round pond of the radius 3.5 meters (Fig. 1) of barrier.As shown in Figure 1, use the tablet of above-mentioned example of formulations preparation at a W-1, W-1 point decentre is 0.75 meter.Through 4 hours,, and check the dispersion situation of herbicidal composition after using at 0.75 meter of decentre, 1.75 meters or 2.75 meters water samplings.Its result is higher than in the following table 2.
Tablet (a) herbicidal composition herbicidal composition herbicidal composition pyrazoxyfen (ppm) A-1 A-3W-1 0.0754 0.588 0.0225W-2 0.0729 0.559 0.0746W-3 0.0767 0.545 of the pilot region tablet B contrast of table 2 sample point pilot region of the present invention contrast do not detect X-1 0.0783 0.572 0.1222X-2 0.0751 0.565 0.1116X-3 0.0745 0.547 0.1305Y-1 0.0812 0.571 and do not detect Y-2 0.0799 0.559 and do not detect Y-3 0.0785 0.550 and do not detect Z-1 0.0742 0.568 and do not detect Z-2 0.0761 0.560 0.0193Z-3 0.0734 0.557 0.0395 notes: after tablet is used 4 hours, pilot region according to the present invention was observed in W-1 point nothing
The precipitation of tablet, and a large amount of precipitations is observed in the W-1 point in the comparative trial zone.
Show that as above-mentioned result of the test in the comparative trial zone, the pyrazoxyfen herbicidal composition is difficult to even dispersion, and each herbicidal composition A-1 of the present invention and A-3 are evenly dispersed.
Experimental example 2 (dispersivity test-II)
The paddy field of cultivating is divided into 8 meters * 6 meters one pilot region, water is directed into 3 to 6 centimetres of degree of depth.From cultivating back 9 days, the tablet of putting the above-mentioned example of formulations preparation of a slice at each pilot region enters (on the W-1 point in Fig. 2) in the water.After spending 24 hours, get the water in field sample and check the dispersion situation of herbicidal composition in a W-1, X and Y.In addition, observe many interference in the rice field such as straw fragment and weeds fragment.
Table 3 pilot region No. tablet type water sampling point herbicidal composition (ppm)
A-1 B-3 A-2 1 tablet A X 0.0365 0.4098
W-1 0.0623 0.5408
Y 0.0494 0.5272 2 tablet E X do not detect 0.0449
W-1 0.0453 0.4578
Y 0.0492 0.4538 3 tablet F X 0.5171 0.0991
W-1 0.5188 0.1093
Y 0.5022 0.1226 4 tablet G X 0.3357 0.0326
W-1 0.5246 0.0689
Y 0.5579 0.0674 5 tablet H X 0.0439 0.4115
W-1 0.0427 0.4122
Y 0.0508 0.4296 6 tablet I X 0.0653 0.4832
W-1 0.0474 0.4632
Y 0.0533 0.4617 7 particle A X 0.0198 0.2617
W-1 0.0377 0.3964
Y does not detect 0.0978 8 particle B X 0.0468 0.4076
W-1 0.0467 0.4064
Y 0.0420 0.4263
Annotate: in regional No.5 to 6, herbicidal composition B-1 does not analyze, particle A and B
Preparation, and the pilot region No.1 that corresponds to tablet respectively in a conventional manner
With 2 and pilot region No.5 and 6.
At least equal or exceed comparative trial zone No.7 and 8 from above-mentioned result of the test proof at pilot region No.1,2,5 and 6 herbicidal composition A-1 and the dispersiveness of B-3.This shows that this herbicidal composition can be evenly dispersed fully when only using with the tablet input.
Experimental example 3 (weeding test-1)
June 7, at paddy field through dilatory tractor-ploughing, and used granular fertilizer (N-P-K=14-10-13) with 20 fens jin/10 are as base manure.Poured water June 12, after two days, cultivate this paddy field with tractor.June 16, the rice seedlings (kind: Nihonbare) transplant of two leaf ages that will in case, cultivate with rice transplanter.
June 20, the pilot region with two series of 3.5 meters * 3 meters of plastics tablet is set.Next day, in the end of each test region with the germination stem tuber of the living nutgrass flatsedge of ratio kind plantation of every district three stem tubers.Other weeds spontaneously derive, thereby represent the weeds of growth basically.The depth of water is adjusted to 5 to 7 centimetres level,, a tablet of above-mentioned each example of formulations is put into the center of pilot region with June 26.In the comparative trial zone, will by conventional method preparation corresponding to the uniform particles of above-mentioned tablet use.Its dosage: in herbicidal composition A-1 situation is 0.45 gram/are, and is 3 gram/ares in herbicidal composition B-3 situation.The leaf order of weeds when using weed killer herbicide, for example: barnyard grass (barnyardgrass) (Echinchloa oryzicola Vasing) is 1.5 to 1.8 leaf ages and common rush bulrush (Scirpus juncoides Roxb), Monochoria (monochoria) (nonochoria Vaginalis (Bu RM fil.) Presi), Vandellia false pimpernel (Lindernia Pyxidaria Linn) and the living nutgrass flatsedge of woods (Cypcrus serotinus Rottb), is 1.5 to 2 leaf ages.Behind the herbicide application the 45th day, the growth of detect by an unaided eye rice and weeds, and by its growth inhibition ratio of following standard evaluation it the results are shown in table 4.
Growth inhibition ratio:
5-100％
t-96-99％
5--91-95％
5-4-85-90％
4-5-81-84％
4-70-80％
Table 4 growth inhibition ratio
| Weed killer herbicide | BA | BU | MO | FS | FP | Toxicity |
| Tablet C pilot region tablet D of the present invention | t*t 5 t | 5 5 5 5 | 5-4 4-5 5-4 5-4 | 5 5-4 4-5 5-4 | 5 5 5 5 | The avirulence avirulence |
| The examination particle of contrast is tested the zone | t*t | 5 5 | t* 5-4 | 5 5-4 | 5 5 | Avirulence |
Annotate: * shows that weeds are removed fully, but regrowth a little.
BA: barnyard grass
BU: common rush
MO: Monochoria
FS: the living nutgrass flatsedge of woods
FP: Vandellia
Prove from above-mentioned result of the test, can obtain only by rice not being had the herbicidal effect that any toxicity is equal to the comparative trial zone with tablet form.
Experimental example 4 (weeding test-II)
July 17, in the paddy field with dilatory tractor-ploughing, poured into water July 21.Next day, cultivate this rice field with tractor, and paddy field is divided into 8 meters * 6 meters pilot region with plastic sheet.July 24, place the point of Fig. 3 * locate with the germination stem tuber of the living nutgrass flatsedge of ratio kind plantation of every regional 24 stem tubers.Barnyard grass (Barnyardgrass) and Monochoria (monochoria) are spontaneously grown.July 31, with the depth adjustment to 3 of water level to 6 centimetres, and the position that the tablet for preparing in each example of formulations is placed W-1 or W-2 and the W-3 of Fig. 3 with the ratio in 1 or 2 in each zone, the leaf age of each weeds when using weed killer herbicide, for example: barnyard grass (barnyardgrass) and Monochoria (monochoria) are 2 leaf ages of 1.5 to 2 leaf ages, the living nutgrass flatsedge of woods.Use behind the weed killer herbicide after the 30th day, with method test vector generation for testing IC inhibiting rate identical in the experimental example 3, what obtain the results are shown in table 5.
Table 5 growth inhibition ratio weed killer herbicide herbicidal composition is used 1 and is used 2
Dosage (g/a) BA MO FS BA MO FS tablet A A-1 0.45 55555 5-4
B-3 3 tablet E A-1 0.45 55 5-4 55 5-4
B-3 3 tablet F A-2 0.51 555555
B-3 3 tablet G A-2 0.51 555555
B-3 3 tablet H.A-1 0.45
B-3 3 5 5 5 5 5 5
B-1 1.5 tablet I A-1 0.45
B-3 3 5 5 5 5 5 5
B-1 1.5 notes particle A and B (referring to the explanation of table 3) are to all barnyard grasses, Monochoria and woods
Living nutgrass flatsedge shows 100% growth inhibition ratio.BA: barnyard grass (E chinochloa oryzicola Vasing) MO: Monochoria (Monochoria Vaginalis (B U RM.fil.)
Presi) ES: the living nutgrass flatsedge of woods (Cyperus serotinus Rottb).
Experimental example 5 (test over time of herbicidal composition)
Employing is according to the tablet J to N of above-mentioned example of formulations preparation and two samples of contrast tablet (b) and each tablet (d), and in them one is as standard specimen and another is sealed in the bag of sealing and be placed in 54 ℃ the thermostatic container and preserve seven heaven-made acceleration storage tests.
To above-mentioned standard specimen and after harsh environmental test sample take a sample respectively, by the content of internal standard method, by following formula tentative calculation (resolution ratio) over time with the active component of chromatogram quantitative analysis of the liquid phase in sample:
R: the content S of active component in standard specimen: the content of the active component after the harsh and unforgiving environments test in sample.It the results are shown in the table 6.
Prove from The above results, sulphonyl phenylurea herbicidal composition with the surfactant that does not contain polyoxyethylene group than stable with the surfactant that contains polyoxyethylene group.
Experimental example 6 (dispersivity test):
Pilot region has 1 meter * 4 meters * wood frame of 20 centimetres (height), and evenly places paddy field soil in the bottom of each pilot region.Then, introduce water, and with the soil ploughing and weeding, regulate the degree of depth to 5 centimetre of water then.As shown in Figure 4, end (some W) at minor face is located, tablet O or P are put into each pilot region, through the predetermined cycle (3.5 hours, 1 day 2 days, 4 days and 6 days), get the water in field sample and get the water in field sample in central part (0 point * be in 2 meters, end), investigate the dispersion situation of herbicidal composition thus at the place, end of another minor face (some Y) apart from each minor face.It the results are shown in the table 7.
The composition sampling quantity of table 6 sample analysis quickens content (mg) the tablet J A-3 495.8 1.3040 before the storage test
B-3 502.1 19.2 tablet K A-3 480.2 1.2197
B-3 472.2 13.080 tablet L A-3 484.3 1.3803
B-3 465.7 13.3516 tablet M A-3 481.1 0.943
B-3 474.1 10.43 tablets 1 A-3 498.5 1.012
B-3 489.3 11.401
The content (mg) that continuous table 6 quickens after the storage test quickens the preceding content (%) of storage test
1.3396 0.263
19.4 3.83
1.1750 0.254
13.478 2.77
1.3426 0.285
13.694 2.867
0.867 0.196
10.796 2.20
0.952 0.203
11.219 2.33
Content (%) behind continued 6 accelerated storage tests is (%) 0.270-2.7 3.80 0.8 0.245 3.5 2.85-2.9 0.277 2.8 2.941-2.6 0.180 8.2 2.28-3.6 0.191 5.9 2.29 1.7 over time
The composition sampling amount of continuous table 6 sample analysis quickens storage test and quickens storage test
Content (mg) contrast tablet (b) A-3 471.8 1.973 0.4163 behind the preceding content (mg)
B-3 484.2 13.654 13.269 contrast tablet (c) A-3 488.4 1.031 0.6965
B-3 505.3 12.43 12.358 contrast tablet (d) A-3 478.8 1.010 0.1186
B-3 463.6 13.445 13.974
Continuous table 6 quickens to store examination and quickens to store examination over time, (%) test preceding content, (%) content after testing, (%) 0.253 0.0882 65.12.82,2.74 2.80.211,0.143 32.22.46,2.45 0.40.211,0.025 88.22.9 3.0-3.4
Table 7 herbicidal composition
3.5 sample water intaking sampling point B-3 A-3 B-3 A-3 B-3 A-3 tablet O X 0.87 0.053 0.77 0.051 0.65 0.043 after 2 days after 1 day after hour
Y 0.03 0.003 0.08 0.004 0.16 0.010 tablet P X 0.63 0.048 0.58 0.044 0.55 0.040
Y 0.40 0.027 0.44 0.033 0.44 0.032
Continuous table 7 B-3 A-3 B-3 A-3 0.49 0.036 0.47 0.025 0.46 0.021 0.44 0.021 0.45 0.029 0.42 0.028 0.44 0.023 0.40 0.021 after 6 days after 4 days
Claims (11)
1. the weed killer herbicide tablet or the capsule of a paddy field application by throwing them; the quantity that it is characterized in that being included in paddy field application by throwing them all is dissolved in the sulfonylurea herbicide components of the quantity in the paddy rice water in field basically; surfactant; blowing agent and binding agent; its part by weight is 1: 0.1～20: 1～800～0.1～20, and wherein said blowing agent is that a kind of acidic materials and a kind of alkaline matter react the gas composition that produces when water exists.
2. tablet as claimed in claim 1 or capsule, the quantity that it is characterized in that being included in paddy field application by throwing them all are dissolved in other herbicide components of quantity in the paddy rice water in field basically.
3. tablet as claimed in claim 1 or capsule; it is characterized in that described sulfonylurea is at least aly to be selected from following group and to comprise: N-[(4; 6-dimethoxypyridin-2-yl) amino carbonyl]-3-methyl-5-(2-chloro-2; the 2-difluoroethoxy)-4-isothiazole sulfonamide; methyl-α-(4; 6-dimethoxypyridin-2-base-carbamoyl sulfamoyl)-neighbour-tolyl formic acid (salt) ester; N[(4; 6-dimethoxypyridin-2-yl) amino carbonyl]-4-carbethoxyl group-1-methyl-2-pyrazoles sulfonamide; N-(2-chlorine imidazoles [1.2-a] pyridin-3-yl-sulfonyl)-N '-(4; 6-dimethoxy-2-pyridine radicals) urea and 3-(4; 6-dimethoxy-1; 3,5-triazine-2-yl)-1-[2-(2-methoxy ethoxy) phenyl sulfonyl) urea.
4. tablet as claimed in claim 2 or capsule, it is characterized in that described other weed killer herbicide component is at least a following group that is selected from, comprise: 2-methyl sulphur-4, two (the ethylamino)-sym-triazines of 6-, 2-methyl sulphur-4-ethylamino-6-(1,2-dimethyl propyl amino)-sym-triazine, 3,7-two chloro-8-quinoline carbonyl acids, 2-chloro-2 ', 6 '-diethyl-N-(the 2-third oxygen ethyl) antifebrin, N[2 '-(3 '-methoxyl group)-thenyl]-N-chloracetyl 2,6-dimethyl anilide, 2 ', 6 '-diethyl-N[(2-is suitable-butoxy) and methyl-2-chloroacetanilide and S, S-dimethyl-2-difluoromethyl-4-(2-methyl-propyl)-6-(trifluoromethyl)-3,5-pyridine dithiocarboxylic esters.
5. tablet as claimed in claim 1 or 2 or capsule is characterized in that described surfactant is at least a following group that is selected from, and comprises anion surfactant or non-ionic surface active agent.
6. tablet as claimed in claim 1 or 2 or capsule is characterized in that described binding agent is water miscible and has the binding agent of ability that bonding constitutes the particle of component.
7. tablet as claimed in claim 1 or 2 or capsule, it is characterized in that described tablet or capsule be shaped as plate-like, avette tabular, bent angle is tabular, rod shape, spherical or oval spherical.
8. tablet as claimed in claim 1 or 2 or capsule, it is characterized in that having plate-like tablet diameter from 1 to 5 centimetre with and thickness from 0.2 to 3 centimetre and have weight from 1 to 150 gram.
9. tablet as claimed in claim 1 or 2 or capsule is characterized in that the spherical capsule of described ellipse has from 1 to 5 centimetre diameter with from 1 to 10 centimetre length and from 1 to 150 weight that restrains.
10. method of controlling paddy field weed, its feature comprises and will be applied to the paddy field of irrigation with per 10 ares, 10 to 200 parts tablets or capsule and per 10 ares with the gross weights from 200 to 500 gram tablets or capsule as the tablet of claim 1 regulation or capsule, and water in field all dissolves and disperse the weed killer herbicide component of this quantity basically.
11. capsule according to claim 1, it comprises the mixture of the pulverizing of (ⅰ) water-soluble film and weed killer herbicide component, surfactant, blowing agent and binding agent, or (ⅱ) particle of the mixture of water-soluble film and pulverizing, wherein the particle of the mixture of mixture of Fen Suiing or pulverizing is sealed by water-soluble film.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23254989 | 1989-09-07 | ||
| JP232549/1989 | 1989-09-07 | ||
| JP34037589 | 1989-12-28 | ||
| JP340375/89 | 1989-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049951A CN1049951A (en) | 1991-03-20 |
| CN1043402C true CN1043402C (en) | 1999-05-19 |
Family
ID=26530519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90107614A Expired - Lifetime CN1043402C (en) | 1989-09-07 | 1990-09-07 | Herbicide tablets or capsules for paddy field application by throwing them into water |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2980959B2 (en) |
| KR (1) | KR0142564B1 (en) |
| CN (1) | CN1043402C (en) |
| ES (1) | ES2033181B1 (en) |
| IT (1) | IT1243717B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2980960B2 (en) * | 1989-09-07 | 1999-11-22 | 石原産業株式会社 | Tablets or capsules for paddy weeding |
| JPH05163102A (en) * | 1991-12-12 | 1993-06-29 | Mikasa Kagaku Kogyo Kk | Agricultural chemical for paddy field and its production |
| WO1997003558A1 (en) * | 1995-07-21 | 1997-02-06 | Nissan Chemical Industries, Ltd. | Solid preparation for paddy field and method for the application thereof |
| US6218336B1 (en) | 1999-10-26 | 2001-04-17 | Applied Carbochemicals | Enhanced herbicides |
| KR100404302B1 (en) * | 2000-11-07 | 2003-11-01 | (주)화신파우워 | An automatic remote operating apparatus and control circuit of lockout switch |
| JP2007238386A (en) * | 2006-03-09 | 2007-09-20 | Phyto Chrome:Kk | Foaming fertilizer formulation |
| WO2023146100A1 (en) * | 2022-01-27 | 2023-08-03 | 주식회사 농사직설 | Immediate-release agrochemical formulation |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146816B1 (en) * | 1966-02-23 | 1976-12-11 | ||
| JPS5248181B2 (en) * | 1972-05-08 | 1977-12-08 | ||
| JPS61134301A (en) * | 1984-12-04 | 1986-06-21 | Mitsubishi Chem Ind Ltd | Herbicide composition |
| JPH0688997B2 (en) * | 1986-02-07 | 1994-11-09 | 石原産業株式会社 | Sulfonamide compounds and salts thereof, herbicidal compositions containing them, and methods for producing the same |
| JPH0784366B2 (en) * | 1987-04-20 | 1995-09-13 | 石原産業株式会社 | Herbicidal composition |
| ES2011844A6 (en) * | 1987-08-07 | 1990-02-16 | Du Pont | Control of weeds in rice - with substd. n-carbamoyl- benzene sulphonamide(s) and their mixts. with known herbicides |
| JP2924071B2 (en) * | 1989-04-18 | 1999-07-26 | 住友化学工業株式会社 | Paddy herbicide |
| GB9016783D0 (en) * | 1989-09-01 | 1990-09-12 | Ici Plc | Agrochemical compositions |
| JP2980960B2 (en) * | 1989-09-07 | 1999-11-22 | 石原産業株式会社 | Tablets or capsules for paddy weeding |
-
1990
- 1990-09-03 ES ES9002307A patent/ES2033181B1/en not_active Expired - Fee Related
- 1990-09-05 JP JP2235039A patent/JP2980959B2/en not_active Expired - Lifetime
- 1990-09-05 IT IT02138290A patent/IT1243717B/en active IP Right Grant
- 1990-09-06 KR KR1019900014061A patent/KR0142564B1/en not_active IP Right Cessation
- 1990-09-07 CN CN90107614A patent/CN1043402C/en not_active Expired - Lifetime
Non-Patent Citations (3)
| Title |
|---|
| 农药化学 1985.1.1 徐圣煦编 * |
| 农药化学 1985.1.1 徐圣煦编;植物化学保护 1983.5.1 华南农学院主编 * |
| 植物化学保护 1983.5.1 华南农学院主编 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2033181A1 (en) | 1993-03-01 |
| KR910005758A (en) | 1991-04-27 |
| CN1049951A (en) | 1991-03-20 |
| IT9021382A1 (en) | 1992-03-05 |
| ES2033181B1 (en) | 1994-04-01 |
| IT1243717B (en) | 1994-06-21 |
| JP2980959B2 (en) | 1999-11-22 |
| KR0142564B1 (en) | 1998-07-01 |
| IT9021382A0 (en) | 1990-09-05 |
| JPH03223203A (en) | 1991-10-02 |
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