CN1031776C - Herbicide for paddy fields - Google Patents
Herbicide for paddy fields Download PDFInfo
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- CN1031776C CN1031776C CN86106679A CN86106679A CN1031776C CN 1031776 C CN1031776 C CN 1031776C CN 86106679 A CN86106679 A CN 86106679A CN 86106679 A CN86106679 A CN 86106679A CN 1031776 C CN1031776 C CN 1031776C
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- 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
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- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Dispersion Chemistry (AREA)
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Abstract
A herbicide for paddy field containing a fine particulate slightly water-soluble herbicidal active component, having <=10mum particle diameter in a stable suspended state, having 180-500cP viscosity (20 deg.C), >=4.0cm/sec initial water surface diffusion rate (20 deg.C) and 23.0-32.0 dynes/cm surface tension (25 deg.C). The herbicide is capable of rapidly extending on the surface of paddy field, uniformly dispersing agricultural chemical active components in water, uniformly adsorbing on the soil surface and forming a stable treating layer. The above-mentioned herbicide is produced by pulverizing and mixing active components in the presence of a surfactant, water-soluble high polymer, flocculation inhibitor, etc., using water as a solvent and dispersing the resultant mixture as ultrafine particles by vigorous stirring.
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 fine-grained form.
Agricultural has various prescription with chemicals, wherein based on particle, wettable powder and emulsion.Used herbicides for use in paddy then major part is a graininess.Why the latter generally uses, and its reason is that they do not need Special Equipment, just can apply with hand.Yet particle may not be best prescription form, because its production cost height, executes and removes irregularly, and needs high dose.On the other hand, this prescription of wettable powder makes 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 wettable 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 and to make its emulsification and dispersion in the big water gaging of its impouring.The electronic atomizers spray of rare emulsion that is produced.As wettable 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, the oil droplet in interior 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 just more evenly and promptly is distributed in the water surface.It just settles down later, and is inhaled into and invests 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 is easy to be dispersed on the water surface.That is to say that it is very simple and easy to apply this emulsion operation.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.This has just 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, and absorption is at soil surface then.The inventor has carried out a series of researchs, the active component of herbicide effect 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 still 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 a kind of herbicides for use in paddy that can be suspended in the water is arranged, it can be as the above, just can be dispersed in the water surface equably after directly imposing on the water surface, then owing to 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 the water slurry 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 inhomogeneous and chemical injury.In addition, needn't dilute the water slurry that just can use with big water gaging for a kind of, then it also should have suitable flowability again, can conveniently and apply (viscosity of usually emulsion is just 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 droplet-like applies.And common water slurry (flowable prescription) is never considered its scalability.Scalability is a kind of new notion, discusses in the present invention for the first time.
Have found that only when the water slurry prescription had some specific chemistry and physical property, above-mentioned technical problem just can solve.
The inventor has carried out big quantity research to the water slurry prescription with such character, has found the water slurry 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, produce significant weeds control effect.The present invention finishes on the basis of this discovery.
According to the present invention, for the rice field provides a kind of water slurry weed killer herbicide that contains low aqueous solubility activity of weeding component, described active component exists with the particle diameter that is in the stable suspersion state fine-grained form less than 10 microns.The flowability of this weed killer herbicide is shown 180 to 500 centipoises (20 ℃ the time) with viscosity gauge, its physical property, initial water surface spreading rate is expressed as more than or equal to 4.0 cels (temperature is 20 ℃), and surface tension is 23.0-32.0 dynes per centimeter (temperature is 25 ℃).
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-AI type is made by Toshiba System Co., Ltd) down, and its used rotor is No. 2,30 rev/mins of rotating speeds.And surface tension Wilhelmy ' s tensiometer is measured (for example CBVP-P tensiometer of being made by Kyowa Kaimen Kagaru Co., Ltd).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.After leaving standstill 20 minutes, be that the cylindrical vessel that 7 centimetres, 1.8 centimetres of the degree of depth, the polypropylene materials that weigh 7 grams are made is placed on square groove water surface center gently with a diameter that 35 grammes per square metre things are housed.From 5 millimeters height more than the water surface weed killer herbicide that is suspended in the water is dropped in positions from 1 centimetre on polypropylene containers wall at leisure with 1 milliliter of pipette, be subjected to the effect of weed killer herbicide expansion force and move 30 centimetres of required times with stopwatch mensuration polypropylene containers then, the survey time can calculate spreading rate by institute.Particle diameter distributes with extinction type particle size analyzer (for example SA-CP2-20 type of being made by Shi-madzu Seisakusho Co., Ltd).
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 fine-grained 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, sand-grass are grand, chlomethoxynil, Machete, the third careless amine, pyrazolate, nitrofen, bifenox, Mo 9 granular, naproanilide, ordram, symetryne and bromobutide (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 particulate of poorly water-soluble; The latter helps weed killer herbicide to expand on the water surface, and makes surface tension reach 23.0～32.0 dynes per centimeter.The combination that also can adopt two kinds of non-ionic surface active agents is 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 used nonionic surface active agent comprises that (hydrophilic lipophilic balance (HLB) is 13-16 to polyoxyethylene nonyl phenyl ester, cloud point is more than 50 ℃) (Nonipol#95-#200 for example, Sanyo Kasei Kagyo Co., Ltd product), (molecular weight of polyoxypropylene ethylene glycol is greater than 1750 for polyoxyethylene-polyoxypropylene ethylene glycol, wherein polyoxyethylene weight is greater than 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 0.5-3.0% (percentage by weight in the unit volume); And the preferable consumption of non-ionic surface active agent is 0.5-5.0% (percentage by weight in the unit volume).The character of used active component is depended in the selection of surfactant.Excessive anion surfactant will cause that the active component particulate assembles; And excessive non-ionic surface active agent can't further improve its 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 centipoises (at 25 ℃).CMC Daisel 1150 (product of Daisel Kagaku Kogyo Co., Ltd) is an example wherein.It is key factors that the viscosity of afore mentioned rules should have the viscosity of 180-500 centipoises for weed killer herbicide of the present invention.Even carboxymethyl cellulose content less than 1%, also can make this decentralized system stable.Water-soluble polymer is not directly to be added in the prescription, just mixes prescription after should be with it soluble in water.For avoiding water-soluble polymer to form undissolved, this is very important.
Can mix some adjuvants 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, aluminium hydrosilicate [or naturally occurring clay mineral, as U.S.'s atlapulgite (attapulgite) and bentonite].The Attagel 150 (Engelhardt Co., Ltd product) or the Kunigel VA (Kunimine Kogyo Co., Ltd product) that add 0.3-2.5% (weight) can produce good result.Propane diols or ethylene glycol are 4.0～8.0% (weight) as the addition of antifreezing agent; Addition as 35% formalin of preservative is 0.3-1.0% (weight); And be 0.1-0.5% (weight) as the addition of the antifreeze E-20 (Kao soap Co., Ltd product) of defoaming agent.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 a 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, Ku-nigelVA10 gram, propane diols 22.5 grams, anti-foam E-20 is 1 gram, 35% formalin, 1.5 grams.Use wet milk Dyno-Mill (extraordinary model of KDL then, make by WillyA.Backofen AG Maschinenfabrik Basel) premix is levigate, concrete operations are as follows: the flow with about 100 ml/min is sent premix into one 0.6 liter attrition mill, and the latter is equipped with bead 800 grams of 0.75-1.00 mm dias as grinding medium.In the Herbicidal composition that makes thus, it is as follows that the particle diameter of suspension particulate distributes: 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%, less than 0.5 micron account for 20%.The viscosity of this Herbicidal composition is 420 centipoises (20 ℃), and surface tension is 25.2 dynes per centimeter (25 ℃), 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 of 375 grams, 0.4% weight concentration, 51 gram Lonsters, 110 gram sand-grasses are grand, 10 gram Kunigel VA, 10 gram Sunmorin OT 1,15 gram Newpol PE-68,22.5 the gram propane diols, 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 initial water 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 restrain the third careless amine, CMCDaisel 1150 aqueous solution of 362 grams, 0.8% weight concentration, 10 gram Kunigel VA, 15 gram Newpol PE-64,7.5 gram Surfinol 104,22.5 the gram propane diols, 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.Prepared 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 initial water 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 water slurry weed killer herbicide.The active component of listed various prescriptions wherein, particle diameter is 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 deployment conditions in water.
Carried out ploughing 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.After applying, handle with formation plate in the rice field again.Apply preceding and apply after one hour and three hours, optional local water samplings in 5 places (flooding the water in rice field) are three times on the rice field, and analyze with gas chromatography (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.
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.
Carried out ploughing 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, and in each zone, (N=15, P=15 K=10), have also applied weed killer herbicide to apply 300 gram particle shape compound fertilizers.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.
The listed weed killer herbicide of table 1 (example 1 is to example 3) is adopted in this test.Some weed killer herbicides of contrast usefulness are as follows: commodity Lonster emulsion (Ronstar), Lonster+sand-grass is swelled particulate (Soy-alon), Lonster+the contain third careless amine emulsion of 8% (weight) Lonster, 8% (weight) third careless amine, 15% (weight) surfactant and 69% (weight) 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.
Data clearly illustrate that in the above-mentioned table, and all physical propertys meet the weed killer herbicide of the present invention's regulation, and its weeding ratio is parity with or superiority over common milkiness shape or granular herbicide, and do 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 distribution performance of the weed killer herbicide initial extension rate representation of measuring as stated above.Distribution by concentration in mensuration herbicidal effect and rice field or the tank is that susceptible of proof absorption of weed killer herbicide on soil surface is well-proportioned.
The district (Lonster) of table 1 (A) through finally stirring
| Used weed killer herbicide | Per 10 acres consumption, gram (in active component) | * 1 herbicidal effect | The chemistry injury |
| 105 " 106 " 107 " 108 " 109 " 110, Lonster emulsion sample 101 " 102 " 103 " 104 " | 60 " " " " " " " " " " | 10 10 10 10 10 7.5 9.5 8 7 10 8.5 | 1 0 0 0 0 0.5 0.5 0.5 1 0 0.5 |
Table 1 (B)
#1 propane diols
#335% formalin
#2 antifoaming agent E-20
Table 1 (B) is continuous
Table 1 (B) is continuous
#1 propane diols
#335% formalin
#2 antifoaming agent E-20
#4 glycan
Table 2A
The district (Lonster+third careless amine) of table 2B through finally stirring
| Weed killer herbicide | Per 10 acres consumption (gram) (in active component) | * 2 herbicidal effects | The chemistry injury |
| Careless amine sample 201 samples of Lonster emulsion+third 202 samples 203 samples 204 samples 205 | 40＋60 40＋40 40＋40 40＋40 40＋40 40＋40 | 10 10 10 8 8.5 8 | 1 0 0 1 1 1 |
Table 3A
| Specimen coding | Leave the concentration (mg/litre) at different distance place, center | ||
| 20 centimetres | 30 lis are come | 40 centimetres | |
| 103 | 3.24 | 3.09 | 2.73 |
| 104 | 3.13 | 3.54 | 4.08 |
| 106 | 3.36 | 4.60 | 3.81 |
| Emulsion (control sample) | 4.18 | 5.36 | 1.94 |
The district (Lonster+tolyl toluene ethyl carbamide) of table 3B through finally stirring
| Weed killer herbicide | Per 10 acres consumption (gram) (in active component) | * 3 herbicidal effects | The chemistry injury |
| (Lonster+tolyl toluene ethyl carbamide) sample 301 " 302 " 303 " 304 " 305 " 306 " 307 " 308 | 45＋150 45＋100 " " " " " " " | 9.5 10 9.5 8 8 7 10 7.5 10 | 0.5 0 0 0.5 0.5 1 0 1 0 |
Table 4 is the district's (Lonster) through finally stirring not
| Weed killer herbicide | Per 10 acres consumption (gram) (in active component) | Herbicidal effect | The chemistry injury |
| 105 " 106 " 107 " 108 " 109 " 110, Lonster emulsion sample 101 " 102 " 103 " 104 " | 60 " " " " " " " " " " | 9.5 9.5 10 10 10 6 9.5 8 7 9.5 8 | 1.5 0 0 0 0.5 1.5 0.5 0.5 1.5 0 15 |
Table 5 is the district's (careless amine of Lonster+third) through finally stirring not
| Weed killer herbicide | Per 10 acres consumption (gram) (in active component) | * 2 herbicidal effects | The chemistry injury |
| Careless amine sample 201 samples of Lonster emulsion+third 202 samples 203 samples 204 samples 205 | 40＋60 40＋40 40＋40 40＋40 40＋40 40＋40 | 9.5 10 10 7 7.5 7.5 | 1.5 0.5 0.5 1.5 1.5 1.5 |
Table 6 is the district's (Lonster+tolyl toluene ethyl carbamide) through finally stirring not
| Weed killer herbicide | Per 10 acres consumption (gram) (in active component) | * 2 herbicidal effects | The chemistry injury |
| Lonster breast+tolyl toluene ethyl carbamide sample 301 samples 302 samples 303 samples 304 samples 305 samples 306 samples 307 samples 308 | 45＋150 45＋100 45＋100 45＋100 45＋100 45＋100 45＋100 45＋100 45＋100 | 9 9 10 7 6.5 7 9.5 6.5 9 | 1 0 0 1 1 1 0 1.5 0.5 |
Claims (2)
1. aqueous suspension shape weed killer herbicide that the rice field is used wherein plays the active component of paddy field weeding effect, stably is suspended in the water with the grated particle form of particle diameter less than 10 microns, and its solvability is less than 0.1% (weight per volume); The viscosity of suspension is 180-500 centipoises (20 ℃), and initial water surface spreading rate is greater than or equal to 4.0 cels (20 ℃), and surface tension is 23.0-32.0 dynes per centimeter (25 ℃); It is characterized in that this suspension is that the mixture that gives that will be made up of following material grinds and makes:
Active component: 5-60% (weight per volume);
Anion surfactant: 0.5-3.0% (weight per volume);
Non-ionic surface active agent: 0.5-5.0% (weight per volume);
Water-soluble polymer: 0.2-1%
Polymerization inhibitor: 0.3-2.5% (weight);
Antifreezing agent: 4-8% (weight);
Preservative: 0.3-1% (weight);
Antifoaming agent: 0.1-0.5% (weight);
All the other: be water.
2. aqueous suspension shape weed killer herbicide as claimed in claim 1 is characterized in that the active component that wherein plays herbicide effect comprises: Lonster, and sand-grass is grand, chlomethoxynil, Machete, the third careless amine, pyrazolate, nitrofen, Mo 9 granular, naproanilide, bifenox, ordram, symetryne and bromobutide, above-mentioned active component can be used separately, also can mix use mutually.
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 CN86106679A (en) | 1987-04-08 |
| CN1031776C true 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) |
Families Citing this family (12)
| 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 |
| 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 |
| EP1790229A1 (en) * | 2005-11-25 | 2007-05-30 | Bayer CropScience AG | Aqueous suspension-concentrates of oxadiazole herbicides |
| 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 |
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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
Also Published As
| Publication number | Publication date |
|---|---|
| EG17981A (en) | 1991-08-30 |
| KR870003688A (en) | 1987-05-04 |
| PH23177A (en) | 1989-05-19 |
| CN86106679A (en) | 1987-04-08 |
| JPS6287501A (en) | 1987-04-22 |
| OA08427A (en) | 1988-06-30 |
| KR950002844B1 (en) | 1995-03-27 |
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