CN1237877C - Synergistic herbicidal composition - Google Patents
Synergistic herbicidal composition Download PDFInfo
- Publication number
- CN1237877C CN1237877C CN 98808804 CN98808804A CN1237877C CN 1237877 C CN1237877 C CN 1237877C CN 98808804 CN98808804 CN 98808804 CN 98808804 A CN98808804 A CN 98808804A CN 1237877 C CN1237877 C CN 1237877C
- Authority
- CN
- China
- Prior art keywords
- molinate
- oxyfluorfen
- weeds
- weed killer
- kinds
- 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 - Fee Related
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/16—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof the nitrogen atom being part of a heterocyclic ring
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Control of weeds in a rice crop is obtained by applying to the crop, the weeds, or the locus of either, a herbicidal composition containing molinate and oxyfluorfen in a weight ratio of from about 500:1 to about 30:1.
Description
Background of invention and prior art
The present invention relates to Synergistic herbicide compositions, especially for the composition of preventing and kill off the weeds in the rice crops.
Molinate (S-ethyl six hydrogen-1H-azatropylidene-1-carbothioic acid ester) is a kind of thiocarbamate herbicide, is used for preventing and kill off the weeds of rice crops for many years always, and product is sold titled with ORDRAM trade mark usually.Molinate can be different formulation and concentration before plantation, before the flood irrigation or use after the flood irrigation, to prevent and kill off the weeds in the various rice crops, formulation rate generally is about 500 to about 11000g/ha.Yet, as for many agricultural chemicals, if can realize that preventing and kill off of weeds is even more ideal with the molinate of low formulation rate.So also can less influence environment and/or contact the workman of this product.
Find surprisingly that now more a spot of weed killer herbicide Oxyfluorfen and molinate combination can produce synergistic effect, therefore, make that using molinate a small amount of and/or amount of application can obtain equal weed control efficacy.
Oxyfluorfen, promptly 2-chloro-1-(3-ethyoxyl-4-nitrophenoxy)-4-(trifluoromethylbenzene) is a kind of diphenyl ether weed killer herbicide, mainly sells with trade mark GOAL .Oxyfluorfen is sold mainly as the weed killer herbicide in fruit tree, nut and vegetables and cotton field.Oxyfluorfen is not used in the weeds of preventing and kill off in the rice crops usually, often causes unacceptable injury to rice because can prevent and kill off the formulation rate of the weeds in the rice crops.Yet, the weeds that also on a small scale are used for preventing and kill off rice crops at Chinese Oxyfluorfen.But, according to the present invention, be used in combination with Oxyfluorfen and the molinate that rice crops is not produced basically the amount of poisoning, especially with lack than conventional amount of application or low molinate when being used in combination, can produce synergistic effect, the result uses the weed control efficacy that all can obtain in the good rice crops before the flood irrigation or after the flood irrigation.
Summary of the invention
The present invention includes a kind of Herbicidal combinations and a kind of method for weed of preventing and kill off in the rice crops.
On the one hand, the present invention relates to contain the Synergistic herbicide compositions of molinate and Oxyfluorfen.
Second aspect, it comprises a kind of Synergistic herbicide compositions that contains molinate and Oxyfluorfen, both weight ratios were respectively about 500: 1 to about 30: 1.
On the other hand, the present invention includes a kind of method for weed of preventing and kill off in the rice crops, this method comprises that the synergistic composition that will contain molinate and Oxyfluorfen is applied to described crop, described weeds or they separately or the place of common growth, and preferred weight ratio was respectively about 500: 1 to about 30: 1.
Detailed Description Of The Invention
The present invention relates to use the Herbicidal combinations of molinate and Oxyfluorfen to prevent and kill off weeds in the rice crops.Within the scope of the present invention, prove that said composition has synergistic effect, can obtain when two kinds of weed killer herbicides use separately under similar environment preventing and kill off the unexpected effect of identical weeds.
According to the present invention, in the presence of paddy rice, handle crop, weeds or they separately or the place management of weeds of common growth with the weed killer herbicide molinate of herbicidally effective amount and Synergistic oxyfluofen composition.In general, we find when two kinds of weed killer herbicide weight ratios be respectively about 500: 1 to about 30: 1, when being preferably about 250: 1 to about 40: 1, this mixing is proved to be has synergistic effect.Yet the applicant finds, the synergistic effect between the two of molinate and Oxyfluorfen is not confined to two kinds of herbicidal compositions in these weight ratio scopes, because may have synergistic effect under other weight ratio condition yet.
Use said composition in the rice field under different time, Different Ways of Planting and will produce synergistic effect or unexpected weed control efficacy.For management of weeds, said composition can be before plantation, the plantation back but before flood irrigation behind (before the flood irrigation, behind the seedling) or the rice crops seedling and after the flood irrigation (after the flood irrigation, behind the seedling) use, can on Direct-seeding Rice or transplanting rice, use.
For using composition, do not require that these two kinds of weed killer herbicides of molinate and Oxyfluorfen must use with the form of physical mixed, perhaps even necessity is not asked at the same time and is used.No matter when they use, as long as these two kinds of weed killer herbicides are present in simultaneously in the rice field and just can produce the combination synergistic effect.Therefore, can use the physical composition of these two kinds of weed killer herbicides, also can a kind ofly use earlier than another kind.For example; one of these two kinds of weed killer herbicides even can before paddy rice plantation, use with sustained release formulation such as microencapsulated formulation; and another kind is used with the liquid or solid formulation of routine subsequently; as long as when second kind of herbicide application; the weed killer herbicide of using earlier also is present in the soil, and the weight ratio of the weed killer herbicide of performance drug effect gets final product in disclosed by the invention and claimed scope.
Therefore, not only one of these two kinds of weed killer herbicides can the liquid or solid form be used, but also can produce the product mix of the liquid or solid form that contains these two kinds of weed killer herbicides.Typical liquid preparation comprises emulsion, suspending agent (comprising the suspending agent that contains microcapsules), solution, missible oil and the preparation that can flow.The form that solid product comprises has granule, wetting powder, water-dispersible solid product (comprising the water dispersible granule that contains the microencapsulation agricultural chemicals) or pulvis.Two types of other compositions that generally also can comprise except that active weedicide of composition are as solvent, wetting agent, suspension aids, anti-caking agent, dispersant, emulsifier, antifreezing agent, defoamer and other additives.
Any or both can be prepared into known various forms of sustained release compositions in these two kinds of weed killer herbicides.Such composition can make active ingredient relatively slowly or sustained release in environment, comprise as capsule, microcapsule formulations and various forms of sustained release granula.
According to the present invention, product mix or composition can multiple different physical form contain this two kinds of weed killer herbicides.In some cases, product mix can be by the product of having bought on market that contains these two kinds of active weedicides, as contain the missible oil of these two kinds of weed killer herbicides, carry out simple physics and mix (" jar mix ") and produce, as long as the active ingredient of these two kinds of products is compatible relatively.Another kind method is, can make and sell a kind of packaging bag, and whole packaging bag contains these two kinds of weed killer herbicides that are contained in the container separately, but packaging together, is commonly referred to as " two packed ".Two packed Herbicidal combinations that are particularly suitable for mentioning here, because wherein the amount of molinate is more much bigger than the amount of Oxyfluorfen basically, therefore can produce such integral product packing, it comprises bulk container that contains molinate weed killer herbicide product and the small container that contains Oxyfluorfen weed killer herbicide product.
Moreover, also can produce previously prepared (" premix ") and contain this two kinds of herbicidal compositions.Molinate is a liquid, and the solid Oxyfluorfen dissolves in a lot of organic solvents.For this reason, it seems that fluid composition is as the preferred often formulation of the product that contains these two kinds of weed killer herbicides.Typical fluid composition comprises the missible oil that contains these two kinds of weed killer herbicides, or each contains a kind of two-phase emulsion (or microemulsion) of weed killer herbicide mutually.
Yet in fact these two kinds of weed killer herbicides also promptly overflow with solid pharmaceutical preparation at present and steep the granule sale, thus also can produce the solid product that contains these two kinds of weed killer herbicides similarly, as overflowing the stain granule.Similarly, also can prepare other solid pharmaceutical preparation, as wetting powder or pulvis.
In addition, utilize appropriate ingredients and condition, can prepare the microencapsulation product equally, wherein one or both weed killer herbicides are wrapped in the microcapsules, described microencapsulation product can liquid form (being capsule suspension) or solid form (i.e. the water dispersible granule of producing by dry micro-capsule suspension) sale.One type of liquid form can be micro-capsule suspension, wherein a kind of weed killer herbicide is wrapped in the capsule, and another kind is present in the continuous liquid phase with non-encapsulated form.Another kind of type is the suspending agent that contains encapsulated molinate of difference and Oxyfluorfen.The type that can contain the preparation of these two kinds of weed killer herbicides or composition is not confined to those that this enumerates, and the preparation of other type those skilled in the art will find apparent that.
Can illustrate by following examples with molinate and Oxyfluorfen mixture management of weeds.
Embodiment 1 present embodiment prove molinate and Oxyfluorfen mixture after flood irrigation/effect of management of weeds when using on the rice crops of transplanting behind the seedling.Grow into the 2-4 leaf phase separately in the soil of rice outside the test bucket.Soil in the test bucket is poured water and is harrowed even (stirring) up to mixing.Then with shoot transplanting equipment to the soil that mixes.Grow in weeds (2 leaf phase) or the soil outside bucket, be transplanted to then in the bucket or in the soil that directly in testing bucket, mixes and grow.The generally injection by chemicals after the flood irrigation or spread fertilizer over the fields and carry out using of weed killer herbicide.Indicate the molinate of content and Oxyfluorfen mixture in the greenhouse with the listed amount of application of table 1 (the gram numerical table of using one or both weed killer herbicides with per hectare shows), after flood irrigation postemergence application to comprise rice (Koshikan kind) and barnyard grass grass (
Echinochloa crusgalliECHCG), and difformed galingale herb (
Cyperus difformisCYPDI) and Monochoria vaginalis (
Monochoria vaginalisMOOVA) on the test level land.Rice crops was in for 3 leaf phases during dispenser, and the barnyard grass grass was 2 leaf phases, and other two kinds of weeds are in 2 leaf phases and 3 leaves between the phase.Result of the test is face table 1 (relatively to represent the percentage of weed control or poisoning with the contrast level land that does not have to handle) as follows.
Table 1
| Compound | Molinate amount of application (g/ha) | Oxyfluorfen amount of application (g/ha) | Poisoning % | Prevent and kill off % | |||
| Rice 7 days | Rice 28 days | ECHCG | MOOVA | CYPDI | |||
| Molinate | 726 | 0 | 0 | 1 | 4 | 0 | |
| 969 | 0 | 0 | 69 | 4 | 29 | ||
| 1453 | 1 | 0 | 51 | 0 | 38 | ||
| Oxyfluorfen | 3 | 1 | 0 | 0 | 24 | 8 | |
| 6 | 1 | 0 | 0 | 35 | 14 | ||
| 13 | 0 | 0 | 35 | 38 | 23 | ||
| 25 | 3 | 0 | 100 | 50 | 30 | ||
| Molinate/Oxyfluorfen | 726 | 3 | 1 | 0 | 99 | 23 | 10 |
| 969 | 3 | 4 | 0 | 100 | 26 | 44 | |
| 1453 | 3 | 1 | 0 | 100 | 19 | 44 | |
| Molinate/Oxyfluorfen | 726 | 6 | 3 | 0 | 100 | 34 | 30 |
| 969 | 6 | 4 | 1 | 100 | 34 | 54 | |
| 1453 | 6 | 1 | 0 | 100 | 49 | 64 | |
| Molinate/Oxyfluorfen | 726 | 13 | 1 | 0 | 100 | 45 | 29 |
| 969 | 13 | 0 | 3 | 100 | 43 | 55 | |
| 1453 | 13 | 1 | 0 | 100 | 44 | 66 | |
| Molinate/Oxyfluorfen | 726 | 25 | 5 | 0 | 100 | 63 | 55 |
| 969 | 25 | 1 | 0 | 100 | 59 | 88 | |
| 1453 | 25 | 1 | 0 | 100 | 61 | 96 | |
From the above embodiments, can draw following some:
1, the molinate spraying with 726g/ha does not have effect to preventing and kill off the barnyard grass grass.Yet when the Oxyfluorfen that only adds 3g/ha (itself does not have preventive effect yet), preventive effect promptly reaches 99%.Under high amount of application condition, molinate is prevented and kill off the barnyard grass grass separately certain effect.Yet, when only adding the Oxyfluorfen of 3-6g/ha, can obtain barnyard grass grass preventive effect completely.
2, do not obtain unexpected effect on the Monochoria vaginalis preventing and kill off, and obtain unexpected effect when only under the high amount of application of Oxyfluorfen (25g/ha), preventing and kill off difformed galingale herb.Yet the composition of these high amounts of application still within the scope of the present invention.
3, in some tests, the molinate in scope of the present invention and the composition of Oxyfluorfen do not demonstrate synergistic effect, outside this it is as expected, because synergistic effect can not all show to all possible herbicidal composition or to all weeds in given scope usually.
Claims (4)
1. Herbicidal combinations that comprises molinate and Oxyfluorfen, wherein the weight ratio of molinate and Oxyfluorfen is 500: 1 to 30: 1.
2. according to the Herbicidal combinations of claim 1, wherein said weight ratio is 250: 1 to 40: 1.
3. the method for a management of weeds in the presence of rice crops is included in the composition according to claim 1 of using herbicidally effective amount on described crop, described weeds or described crop and/or the described weed growth place.
4. the method for a management of weeds in the presence of rice crops, be included in use on described crop, described weeds or described crop and/or the described weed growth place herbicidally effective amount according to claim 2 composition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92278597A | 1997-09-03 | 1997-09-03 | |
| US08/922,785 | 1997-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1269700A CN1269700A (en) | 2000-10-11 |
| CN1237877C true CN1237877C (en) | 2006-01-25 |
Family
ID=25447576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98808804 Expired - Fee Related CN1237877C (en) | 1997-09-03 | 1998-08-27 | Synergistic herbicidal composition |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1009234A1 (en) |
| JP (1) | JP2001514196A (en) |
| KR (1) | KR100511847B1 (en) |
| CN (1) | CN1237877C (en) |
| AU (1) | AU753747B2 (en) |
| BR (1) | BR9811439B1 (en) |
| EA (1) | EA002152B1 (en) |
| MY (1) | MY116605A (en) |
| WO (1) | WO1999011131A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL137723A0 (en) * | 1998-04-07 | 2001-10-31 | Zeneca Ltd | Synergistic herbicidal combination |
| CN102599163B (en) * | 2011-12-20 | 2014-01-22 | 青岛瀚生生物科技股份有限公司 | Compound herbicide |
| CN103609578B (en) * | 2013-10-18 | 2015-05-20 | 广西三晶化工科技有限公司 | Herbicide composition containing buthiuron and oxyfluorfen |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573643B2 (en) * | 1973-08-17 | 1982-01-22 | ||
| JPS51128431A (en) * | 1975-04-28 | 1976-11-09 | Mitsui Toatsu Chem Inc | A herbicide composition for paddy fields |
| JPS5459331A (en) * | 1977-10-20 | 1979-05-12 | Asahi Chem Ind Co Ltd | Herbicidal composition for paddy rice field |
| JPS55162702A (en) * | 1979-06-06 | 1980-12-18 | Sumitomo Chem Co Ltd | Herbicide |
| JPS5632404A (en) * | 1979-08-28 | 1981-04-01 | Yashima Chem Ind Co Ltd | Herbicide for paddy rice field |
| JPS5879908A (en) * | 1981-11-09 | 1983-05-13 | Mitsui Toatsu Chem Inc | Mixed herbicide |
| JPS5916807A (en) * | 1982-07-20 | 1984-01-28 | Asahi Chem Ind Co Ltd | Herbicidal composition for paddy field |
| JP2808013B2 (en) * | 1989-05-23 | 1998-10-08 | クミアイ化学工業株式会社 | Complex suspension herbicide |
-
1998
- 1998-08-27 EP EP98940400A patent/EP1009234A1/en not_active Withdrawn
- 1998-08-27 EA EA200000276A patent/EA002152B1/en not_active IP Right Cessation
- 1998-08-27 CN CN 98808804 patent/CN1237877C/en not_active Expired - Fee Related
- 1998-08-27 WO PCT/GB1998/002574 patent/WO1999011131A1/en active IP Right Grant
- 1998-08-27 KR KR10-2000-7001855A patent/KR100511847B1/en not_active IP Right Cessation
- 1998-08-27 BR BRPI9811439-5A patent/BR9811439B1/en not_active IP Right Cessation
- 1998-08-27 JP JP2000508248A patent/JP2001514196A/en not_active Ceased
- 1998-08-27 AU AU88733/98A patent/AU753747B2/en not_active Ceased
- 1998-09-02 MY MYPI9804009 patent/MY116605A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1269700A (en) | 2000-10-11 |
| MY116605A (en) | 2004-02-28 |
| WO1999011131A1 (en) | 1999-03-11 |
| AU753747B2 (en) | 2002-10-24 |
| EA200000276A1 (en) | 2000-08-28 |
| KR100511847B1 (en) | 2005-09-02 |
| EP1009234A1 (en) | 2000-06-21 |
| JP2001514196A (en) | 2001-09-11 |
| AU8873398A (en) | 1999-03-22 |
| KR20010023226A (en) | 2001-03-26 |
| EA002152B1 (en) | 2001-12-24 |
| BR9811439B1 (en) | 2010-07-13 |
| BR9811439A (en) | 2000-08-22 |
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Granted publication date: 20060125 Termination date: 20130827 |