CN106359397A - Weeding composition and application thereof - Google Patents
Weeding composition and application thereof Download PDFInfo
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- CN106359397A CN106359397A CN201510443234.8A CN201510443234A CN106359397A CN 106359397 A CN106359397 A CN 106359397A CN 201510443234 A CN201510443234 A CN 201510443234A CN 106359397 A CN106359397 A CN 106359397A
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Abstract
The invention discloses a weeding composition and an application thereof, and relates to the technical field of pesticide compounding. The weeding composition contains an effective component A which is fluorochloridone and an effective component B which is prometryn, and a weight ratio of the component A to the component B is 1:12-4:1. Compared with single doses, the weeding composition has the advantages of drug effect improvement, weed resistance delaying, broad weeding spectrum, long persistent period, and high safety to umbelliferous medicinal plants and later crops. The weeding composition can be applied to umbelliferous medicinal plant planting fields in order to control grassy weeds and broad leaf weeds.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations and its application, particularly relate to Herbicidal combinations and its application that a kind of effective ingredient contains fluorochloridone and prometryn, belong to technical field of pesticide combination.
Background technology
Living standard with people improves constantly, and health care consciousness constantly strengthens, the continuous discovery of the new medicinal function of medicinal plants, and medicinal plants demand is also sharply increasing, and cultivated area expands rapidly.But, medicinal plants are planted the difficult problem of field weeding and are not resolved so far, and Weed infestation makes Chinese crude drug be difficult to meet demand of fine quality, that amount is big it more difficult to keep up with the changeable rhythm of medical market.
Further investigation reveals that, in medicinal plants main cultivation area, peasant household's annual weeding 3-4 time, for Herba Sonchi Arvensis, field thistle generating region, the weeding cycle is 1 month.There is a problem of that artificial weeding is difficult in medicinal plants artificial culture weeding process, most of medicinal plants, seed is little, and growth potential is weak, and the growthform of stem is special, sowing specification is special, thus leading to artificial weeding to be difficult.And during chemical weed control, there is also a lot of problems, not yet develop the special chemical herbicide of medicinal plants in the world, and medicinal plants major part species belongs to " weeds " category, so the weeds prevented and kill off in medicinal plants ground using chemical herbicide are also very difficult.
Fluorochloridone (fluorochloridone), chemical name: (3rs, 4rs, 3rs, 4rs) -3- chloro- 4- chloromethyl -1- (methyl between α, α, α-trifluoro) -2-Pyrrolidone (ratio 3:1), molecular formula: c12h10cl2f3No, molecular weight: 312.1, shown in its structure such as formula ().This product belongs to pyrrolidinone compounds herbicide, is carotenogenesis inhibitor.Be usually used in Semen Tritici aestivi and potato fields prevent and kill off broad leaved weed and grassy weed, to descurainia sophia (l.) webb ex prantl, Herba Capsellae, Herba stellariae mediae, Herba Setariae Viridis, Herba Digitariae preventive effect preferably, to leading a cow, rye grass, Triticum tauschii preventive effect poor.
Prometryn (prometryn), chemical name is 4,6- bis-isopropylamine base -2- methyl mercapto -1,3,5-triazines, molecular formula: c10h19n5S, molecular weight 241.36, shown in its structure such as formula ().Prometryn is the dual-purpose selectivity s-triazine herbicide in floods and droughts ground, has Uptake and translocation effect, also can penetrate into plant from stem and leaf from root absorption, transport to inhibited photosynthesis in green blade, weeds chlorosis dries up dead.It is applied to the crops such as Oryza sativa L., Semen Tritici aestivi, Semen sojae atricolor, Cotton Gossypii, Caulis Sacchari sinensis, fruit tree, vegetable, prevent and kill off annual broadleaf weed, dogstail, dried tuber and some perennial weeds, such as Herba Digitariae, Herba Setariae Viridis, barnyard grass, Herba monochoriae vaginaliss, Herba Clinopodii Polycephali, amur foxtail etc. and perennial Herba potamogetonis distincti, fescue etc..
There is different degrees of defect in the herbicide kind containing single-activity component on control of weeds, such as after continuous administration, weeds easily develop immunity to drugs, and weed control spectrum narrows, the problems such as cause environmental pollution.
It is to improve preventive effect that herbicide rationally compounds, and expands weed control spectrum, delays the speed of shift of weed community, reduces the single pollution using the resistance risk bringing, mitigating to environment of pesticide, reduces use cost and a kind of effective ways reducing herbicide residue.
Content of the invention
The technical problem to be solved in the present invention is that a kind of herbicidal effect of offer is good, drug cost is low, broad weed-killing spectrum, the significant Herbicidal combinations of prevention effect to weeds.
For solving above-mentioned technical problem, the present invention provides technical scheme as follows:
Herbicidal combinations of the present invention, comprise effective ingredient a and b, and wherein, effective ingredient a is fluorochloridone, and effective ingredient b is prometryn, and the weight of described effective ingredient a and effective ingredient b ratio is for 1:12～4:1；Further weight ratio is for 1:6～2:1.
In Herbicidal combinations of the present invention in addition to effective ingredient, also include receptible auxiliary element in pesticide.Receptible auxiliary element in pesticide, there is the component of Beneficial Effect including not playing with fluorochloridone, prometryn generation chemical action or the drug effect to the present invention, the auxiliary agent such as conventional use of dispersant, diffusant, defoamer, wetting agent, disintegrating agent, excipient etc. such as in pesticide.
According to different using needs or applying environment condition, Herbicidal combinations of the present invention are arbitrary dosage form in pesticide.As corresponding cream, microemulsion, aqueous emulsion, wettable powder, suspending agent, water dispersible granules etc. can be made.
Herbicidal combinations of the present invention can be provided with finished product preparation form, i.e. in Herbicidal combinations, each material is blended, or the composition of Herbicidal combinations can also be provided with unit dose form, directly directly mixed in bucket or tank using front, be then diluted to required concentration.
The method that Herbicidal combinations of the present invention are applied to controlling weeds, its weight ratio described above scope (1:12～4:1, particularly 1:6～2:1) apply each active component fluorochloridone and prometryn, it can be applied after being mixed in proportion, apply in proportion simultaneously or apply successively in proportion.Herbicidal combinations of the present invention, carry out cauline leaf process after weeds emerge.
Herbicidal combinations of the present invention, can be used for preparing the pesticidal preparations of controlling weeds.It is particularly useful for making and prevents and treats the pesticidal preparations that medicinal plants plant field weed, especially the preventing and treating broad leaved weed of 1-10 leaf phase and/or the pesticidal preparations of grass tree weeds.
Medicinal plants plantation field of the present invention is preferably Carrot family medicinal plants plantation field, particularly to safety such as Radix Bupleuri, Radix Angelicae Sinensis, the Radix Angelicae Dahuricae, Radix Saposhnikoviae, Radix Angelicae Pubescentiss, Radix Peucedani, Rhizoma Chuanxiong, Radix Glehniaes.
Herbicidal combinations of the present invention can be used for medicinal plants plantation Tanaka and prevent and kill off broad leaved weed, dried tuber, grass tree weeds, and its effect is substantially better than fluorochloridone or prometryn single dose, has preferable application prospect and promotional value.
The present invention pass through different mechanism of action, two kinds of active components of different model of action compounding, there is synergistic function, pesticide dosage can be reduced, reduce use cost.
It is an advantage of the invention that it will be evident that being mainly manifested in:
1. Herbicidal combinations of the present invention, no any antagonism between each composition, potentiation is notable；
2. Herbicidal combinations compare with being used alone single active ingredient, expand weed control spectrum, and herbicidal effect is more preferable；
3. Herbicidal combinations can prevent and kill off 1-10 leaf phase broad leaved weed or grass tree weeds, can shorten the weeding quick-acting phase, extends the lasting period, and a dispenser can save Ji Wucao from damage；
4. low toxicity, to people, bird, poultry and beneficial organism safety, is conducive to environmental conservation and keeps ecological balance；
5. easy and simple to handle, compound synergic can reduce the usage amount of each single dose, low cost, easily promotes.
Specific embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, will be described in detail with specific embodiment below, but the present invention will be limited to absolutely not these examples.Described below is only the preferable embodiment of the present invention, only in order to explain the present invention, therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included within the scope of the present invention.Therefore, the protection domain of patent of the present invention should be defined by claims.
Different agriculture the effective elements of the medicines are compounded and makes pesticide, be a kind of effective and quick way developed and develop novel pesticide at present and prevent and treat agriculturally resistance.After the pestsides synthesis of different cultivars, typically exhibit a large amount of three kinds of type of action: summation action, potentiation and antagonism.The good formula of compound synergic, can significantly improve actual prevention effect, expand weed control spectrum, reducing the usage amount of pesticide, thus contributing to delaying drug-fast generation speed, being the important means of integrated control.
The present composition is with fluorochloridone for a kind of effective ingredient (a), prometryn is that another effective ingredient (b) forms binary built, combine between them and there is to control of weeds obvious synergistic function, and be not only two kinds of pharmacy effects simple superposition, this can be clearly understood that from following test result.
(1) Toxicity Determination test
Assay method: indoor pot method, Herba Digitariae, Herba Setariae Viridis, Herba stellariae mediae, Herba chenopodii six leaf wholeheartedly when carry out cauline leaf process with spray tower.After medicine, 30d measures fresh weight inhibition, calculates ed90Value, co-toxicity coefficient.Relatively fluorochloridone or prometryn single dose, and both compounding after activity of weeding, determine optimum proportioning scope.
Evaluate two-spot herbicide mode of application with the abundant co-toxicity coefficient method of Sun Yun, formula is as follows:
In formula:
Ati mixture surveys toxicity index；
The ed of s standard agent50/90；
The ed of m mixture50/90；
Tti=a × pa+b×pb
In formula:
Tti mixture theoretical toxicity index；
A a medicament toxicity index；
B b medicament toxicity index；
paPercentage composition in mixture for a medicament；
pbPercentage composition in mixture for the b medicament；
In formula:
Ctc co-toxicity coefficient；
Ati mixture surveys toxicity index；
Tti mixture theoretical toxicity index.
Criterion: ctc ＞ 120 is potentiation；Ctc ＜ 80 is antagonism；80 ＜ ctc ＜ 120 are summation action.
Table 1 Toxicity Determination tests (one)
Table 2 Toxicity Determination tests (two)
Table 3 Toxicity Determination tests (three)
Table 4 Toxicity Determination tests (four)
Toxicity Determination result table 1～4 shows, in the range of a:b weight is than 1:12～4:1, after fluorochloridone is compounded with prometryn, has obvious synergistic function；Particularly, than in the range of for 1:6～2:1, synergistic effect is more notable for a:b weight.The drug effect of the present invention is significantly better than respective single dose routine tests effect, and can expand weed control spectrum.
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, will be described in detail with specific embodiment below, but the present invention will be limited to absolutely not these examples.Described below is only the preferable embodiment of the present invention, only in order to explain the present invention, therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included within the scope of the present invention.Therefore, the protection domain of patent of the present invention should be defined by claims.
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, in the range of weight is than 1:12-4:1, builds the embodiment that fluorochloridone is compounded with prometryn, be described in detail, but the present invention is limited to absolutely not these examples.
All features disclosed in this specification, or disclosed all methods or during step, in addition to mutually exclusive feature and/or step, all can combine by any way.Any feature disclosed in this specification, unless specifically stated otherwise, all can be replaced by other alternative features that are equivalent or having similar purpose.I.e., unless specifically stated otherwise, each feature is a series of equivalent or one of similar characteristics example.
The Herbicidal combinations of the present invention can be prepared into any one dosage form of suitable agricultural use with known method, and reasonable dosage form is wettable powder, aqueous emulsion, microemulsion, suspending agent, water dispersible granules, cream.In all formula, percentage ratio is all weight percentage.The processing technique of the various dosage form of the present composition is prior art, can be varied from according to different situations.
With reference to embodiment, present invention is described further.
Embodiment 1:39% fluorochloridone prometryn wettable powder (1:12)
Preparation method: by above-mentioned formula, effective ingredient fluorochloridone, prometryn and auxiliary agent, filler are mixed, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, you can make corresponding Wettable pesticide powder.
Embodiment 2:40% fluorochloridone prometryn wettable powder (1:9)
Preparation method: by above-mentioned formula, effective ingredient fluorochloridone, prometryn and auxiliary agent, filler are mixed, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, you can make corresponding Wettable pesticide powder.
Embodiment 3:14% fluorochloridone prometryn aqueous emulsion (1:6)
Preparation: prometryn, fluorochloridone and solvent, surfactant are mixed, mix homogeneously obtains oil phase in a kettle., by soft water, 1,2- propylene glycol, sodium benzoate, xanthan gum shear agitation uniformly obtain aqueous phase, under high speed shear, oil phase is poured into shear-mixed in aqueous phase uniform, make its mean diameter below 5 microns, that is, obtain product.
Embodiment 4:12% fluorochloridone prometryn microemulsion (1:3)
Preparation: prometryn, fluorochloridone are mixed homogeneously in a kettle. with dodecyl sodium sulfonate ammonium, castor oil polyoxyethylene ether, n- methyl pyrrolidone, isopropanol and obtains oil phase, under agitation soft water is added in oil phase, mix homogeneously obtains product.
Embodiment 5:10% fluorochloridone prometryn cream (1:1)
Preparation: any of the above composition is added in reactor, mix homogeneously obtains product.
Embodiment 6:30% fluorochloridone prometryn water dispersible granules (2:1)
Preparation method: by above-mentioned formula, effective ingredient fluorochloridone, prometryn and auxiliary agent, filler are mixed, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, add water through pelletize, and dry, you can make corresponding water dispersible granules.
Embodiment 7:32% fluorochloridone prometryn suspending agent (3:1)
Preparation method: by above-mentioned formula, effective ingredient fluorochloridone, prometryn and auxiliary agent, water are mixed, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so as to mean diameter is below 5 microns, you can make corresponding suspension pesticide.
Embodiment 8:30% fluorochloridone prometryn suspending agent (4:1)
Preparation method: by above-mentioned formula, effective ingredient fluorochloridone, prometryn and auxiliary agent, water are mixed, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so as to mean diameter is below 5 microns, you can make corresponding suspension pesticide.
(2) the pesticidal preparations field control effectiveness test one of previous embodiment preparation
Reagent agent: the re-compounded binary herbicide in embodiment 1～8.
Comparison medicament: 10% fluorochloridone ec, 50% prometryn wp single dose.
Prevent and kill off object: barnyard grass, Herba Eleusines Indicae, Herba Portulacae, Amaranthus retroflexus.
Test method: each cell 20m2, it is repeated 4 times, random district's groups arrangement.Good various medicaments of precise, and after being watered dilution, using knapsack sprayer, carry out even spraying, not drain spray, respray.
After off-test, after medicine, 5d, 10d, 20d, 30d, 45d observe weeds death condition respectively, and take 1 square meter to carry out weeds mortality survey at random from each cell, calculate preventive effect.
Table 5 field control effectiveness test (one)
Result of the test shows as shown in table 5, after fluorochloridone is compounded by the present invention with prometryn, after medicine, 30d preventive effect is compared with respective single dose, expand preventing and treating grass spectrum, to weeds particularly barnyard grass, Herba Eleusines Indicae, Herba Portulacae, Amaranthus retroflexus preventive effect be all significantly improved, and the preventive effect of complex preparation all be better than comparison single dose medicament.Therefore, in the range of a:b weight is than 1:12～4:1, particularly a:b weight is than in the range of for 1:6～2:1, after fluorochloridone is compounded with prometryn, there is obvious synergistic function, the drug effect of the present invention is significantly better than respective single dose routine tests effect, and can expand weed control spectrum.
(3) the pesticidal preparations field control effectiveness test two (safety) of previous embodiment preparation
Reagent agent: 8 kinds of complex weedicides in embodiment 1-8.
For studying thing: the Carrot family medicinal plants such as the Radix Angelicae Dahuricae, Radix Bupleuri, Radix Angelicae Sinensis, Radix Angelicae Pubescentiss, Radix Saposhnikoviae, Rhizoma Chuanxiong, Radix Glehniae.
Dispenser period: plant 6-15 leaf phase.
Test method: according to the area of experimental plot, the good each medicament of precise, after being watered dilution, using knapsack sprayer, carry out even spraying.The special Fan spray head of sprinkler selection weeding, sprayed in the afternoon selecting fine day calm.During spraying, medicinal liquid is uniformly sprayed application in experimental plot, accomplish not respray, drain spray.Observe the growing state of plant in 1～60d after the medicine, observe whether plant has poisoning.
Table 6 field control effectiveness test (safety)
The result of the test of table 6 shows, after the present invention adopts fluorochloridone to compound with prometryn, whole safety to the Carrot family medicinal plants such as the Radix Angelicae Dahuricae, Radix Bupleuri, Radix Angelicae Sinensis, Radix Angelicae Pubescentiss, Radix Saposhnikoviae, Rhizoma Chuanxiong, Radix Glehniae.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, on the premise of without departing from principle of the present invention; some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of Herbicidal combinations are it is characterised in that comprise effective ingredient a and effective ingredient b,
Wherein, effective ingredient a is fluorochloridone, and effective ingredient b is prometryn, described effective ingredient a
With the weight of effective ingredient b than for 1:12～4:1.
2. Herbicidal combinations according to claim 1 are it is characterised in that described effective ingredient
The weight of a and effective ingredient b is than for 1:6～2:1.
3. Herbicidal combinations according to claim 1 and 2 are it is characterised in that described weeding
Pesticidal preparations auxiliary element is also contained, to make the dosage form being suitable for agriculturally using in compositionss.
4. Herbicidal combinations according to claim 3 are it is characterised in that described pesticidal preparations
Auxiliary element is in solvent, wetting agent, emulsifying agent, dispersant, stabilizer, antifreezing agent or filler
One or more.
5. Herbicidal combinations according to claim 3 are it is characterised in that described Herbicidal combinations
Dosage form be cream, microemulsion, aqueous emulsion, wettable powder, suspending agent or water dispersible granules.
6. the application of the arbitrary described Herbicidal combinations of claim 1 to 5 is it is characterised in that use
Pesticidal preparations in preparation controlling weeds.
7. the application of Herbicidal combinations according to claim 6 is it is characterised in that be used for making
Standby medicinal plants of preventing and treating plant the broad leaved weed of Tanaka's 1-10 leaf phase and the pesticidal preparations of grassy weed.
8. the application of Herbicidal combinations according to claim 7 is it is characterised in that described medicine
It is Carrot family medicinal plants plantation field with plant growing field.
9. the application of Herbicidal combinations according to claim 8, wherein said Carrot family
Medicinal plants are Radix Bupleuri, Radix Angelicae Sinensis, the Radix Angelicae Dahuricae, Radix Saposhnikoviae, Radix Angelicae Pubescentiss, Radix Peucedani, Rhizoma Chuanxiong or Radix Glehniae.
10. the method that the arbitrary described Herbicidal combinations of claim 1 to 5 are applied to controlling weeds,
It is characterized in that, active component with above-mentioned weight than applying, it applies after being mixed in proportion, by than
Example is applied simultaneously or is applied successively in proportion.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108378042A (en) * | 2018-05-15 | 2018-08-10 | 陕西上格之路生物科学有限公司 | A kind of Herbicidal combinations containing fluridone and prometryn |
| CN108966970A (en) * | 2017-11-15 | 2018-12-11 | 合力科技股份有限公司 | A method of prevention and treatment arid area farmland weed |
| CN108967428A (en) * | 2017-11-15 | 2018-12-11 | 迈克斯(如东)化工有限公司 | A kind of herbicidal composition of the inhibitor containing PDS and its application |
| CN111387197A (en) * | 2020-05-20 | 2020-07-10 | 山东潍坊润丰化工股份有限公司 | Prometryn water dispersible granule and preparation method thereof |
| WO2023233367A1 (en) * | 2022-06-03 | 2023-12-07 | Adama Agan Ltd. | Herbicidal mixtures for crop protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108966970A (en) * | 2017-11-15 | 2018-12-11 | 合力科技股份有限公司 | A method of prevention and treatment arid area farmland weed |
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| CN111387197A (en) * | 2020-05-20 | 2020-07-10 | 山东潍坊润丰化工股份有限公司 | Prometryn water dispersible granule and preparation method thereof |
| CN111387197B (en) * | 2020-05-20 | 2022-03-29 | 山东潍坊润丰化工股份有限公司 | Prometryn water dispersible granule and preparation method thereof |
| WO2023233367A1 (en) * | 2022-06-03 | 2023-12-07 | Adama Agan Ltd. | Herbicidal mixtures for crop protection |
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Application publication date: 20170201 |