CN106259397A - A kind of Herbicidal composition for rice field - Google Patents
A kind of Herbicidal composition for rice field Download PDFInfo
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- CN106259397A CN106259397A CN201510238654.2A CN201510238654A CN106259397A CN 106259397 A CN106259397 A CN 106259397A CN 201510238654 A CN201510238654 A CN 201510238654A CN 106259397 A CN106259397 A CN 106259397A
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- penoxsuam
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Abstract
A kind of Herbicidal composition for rice field, by weeding effective ingredient (a), (b), (c) combination, remaining is the most acceptable adjuvant.Compositions improves herbicidal effect, expands weed control spectrum.
Description
Technical field
The present invention relates to pesticide combination and application thereof, be effective ingredient (a), (b), (c) combination, prevent and treat for rice terrace annual grassy weeds.
Background technology
Protection crops are to continue produced problem in agricultural from growth, the dysgenic weed infestation of yield.For helping against this problem, the researcher of synthesis chemical field has prepared chemicals and the chemicals preparation of multiple this obnoxious growth of effective control.The most eurypalynous chemical herbicide discloses the most in the literature, and a large amount of chemical herbicides use in business.
In some cases, have shown that compared with being administered alone, weeding effective ingredient is the most more effectively, described in Colby method evaluation herbicide mode of application (NY/T 1155.7-2006) evaluation criterion, " synergism " is two or more factor interactions so that effect is than effective, poor, the addition desired by response based on each single administration respectively upon combination.The present invention is based on the discovery that show beyond thought synergistic function during (a), (b), (c) combined administration of its single herbicidal efficacy known.
Forming the herbicides compounds of cooperative compositions of the present invention is each independent known on the impact of plant growing in this area.
Penoxsuam (penoxsulam), chemical name: 2-(2,2-difluoro ethoxy)-N-(5,8-dimethoxy (1,2,4) triazole-(1,5-C) pyrimidine-2-base)-6-trifluoromethyl-benzene sulfanilamide, belonging to pyrimidine sulfonyl aminated compounds, via grass cutting blade, sheath portion or root absorption, conduction is to separate living tissue, suppression acetolactate synthestase (ALS), weed growth is caused to stop, yellow, then dead.
Metribuzin (oxaziclomefone), chemical name: 2-[(4,6-dimethoxypyridin-2-base) oxygen]-6-[1-(N-methoxyimino) ethyl] essence of Niobe, belongs to organic heterocyclic class, it is inner sucting conduction type herbicide for paddy field, mainly by root and the stem and leaf basal sink of weeds.Leaves and stems chlorosis after weeds contact medicament, stop growing, until withered.
Bensulfuron-methyl (bensulfuron -methyl); chemical name: α-{ [(4; 6-dimethoxypyridin-α-yl) amino carbonyl amino] sulfonvlmethvl } essence of Niobe; belong to sulfonyl urea compound; there is inner sucting conduction type effect; absorb each portion of weeds that transfers to, hindered aminoacid, lysine, the biosynthesis of isoleucine for weeds root and blade, stop division and the growth of cell.Susceptible weeds GF is obstructed, tender tissue too early turn to be yellow suppression leaf portion growth, hinder root growth and downright bad.
Pyrazosulfuron (pyrazosulfuron -ethyl), chemical name: 5-(4,6-dimethoxypyridin base-2-carbamyl sulfonamides)-1-methylpyrazole base-4-Ethyl formate, belong to sulfonyl urea compound, there is inner sucting conduction type effect, absorb each portion of weeds that transfers to, hindered aminoacid, lysine, the biosynthesis of isoleucine for weeds root and blade, stop division and the growth of cell.Susceptible weeds GF is obstructed, tender tissue too early turn to be yellow suppression leaf portion growth, hinder root growth and downright bad.
Halosulfuronmethyl (halosulfuron-methrl); chemical name: 3-(4; 6-dimethoxypyridin-2-base)-1-(1-methyl-3-chloro-4-methoxy formoxyl pyrazoles-5-base) sulfonylureas; belong to sulfonyl urea compound; there is inner sucting conduction type effect; absorb each portion of weeds that transfers to, hindered aminoacid, lysine, the biosynthesis of isoleucine for weeds root and blade, stop division and the growth of cell.Susceptible weeds GF is obstructed, tender tissue too early turn to be yellow suppression leaf portion growth, hinder root growth and downright bad.
Promazine Sulfometuron Methyl (propyrisulfuron); chemical name: 1-(2-chloro-6-propyl imidazole also [1; 2-b] pyridazine-3-sulfonyl)-3-(4; 6-dimethoxypyridin-2-base) urea; belong to sulfonyl urea compound, there is inner sucting conduction type effect, absorb for weeds root and blade and transfer to each portion of weeds; hindered aminoacid, lysine, the biosynthesis of isoleucine, stop division and the growth of cell.Susceptible weeds GF is obstructed, tender tissue too early turn to be yellow suppression leaf portion growth, hinder root growth and downright bad.
Penoxsuam, metribuzin, bensulfuron-methyl, pyrazosulfuron, halosulfuronmethyl, the combination of promazine Sulfometuron Methyl are conducted in-depth research by the present invention, on the basis of substantial amounts of test, find by (a) penoxsuam, (b) metribuzin, (c) bensulfuron-methyl, pyrazosulfuron, halosulfuronmethyl, promazine Sulfometuron Methyl any one be combined, rice terrace annual grassy weeds is showed synergistic function, can be effectively improved the actual prevention effect to rice terrace annual grassy weeds, expanding prevention is composed.After further study, the present invention is completed.
Summary of the invention
It is an object of the invention to solve the deficiency during single compound uses, it is provided that a kind of synergistic function, the compositions of broad weed-killing spectrum.
It is another object of the present invention to the pesticidal preparations that compositions is prepared as according to known dosage form manufacturing technique technology be can be used directly, may be directly applied to the preventing and treating of rice terrace annual grassy weeds.
Technical scheme: for achieving the above object, the present invention provides a kind of compositions, by effective ingredient (a), (b), (c) combination.
(a) described in scheme selected from penoxsuam (penoxsulam), (b) selected from metribuzin (oxaziclomefone), (c) selected from bensulfuron-methyl (bensulfuron
methyl), pyrazosulfuron (Pyrazosulfuron -ethyl), halosulfuronmethyl (halosulfuron -methyl), promazine Sulfometuron Methyl (propyrisulfuron) any one.
Described in scheme, (a), (b), (c) portfolio ratio are 1～20:1～20:1～20.
Compositions described in scheme (a) in terms of gross weight accounts for 0.01～30%, and (b) accounts for 0.01～30%, and (c) accounts for 0.01～30%, and remaining is the most acceptable adjuvant.
Compositions described in scheme is prevented and treated for rice terrace annual grassy weeds.
The production technology of the various application forms of compositions all belongs to existing known technology, does not repeats them here.
Frequency of administration and the amount of application of the present composition have small variations with crops, weeds, weather condition change, can reach, by using suitable dosage, the purpose effectively prevented and treated.
Compared with prior art, the compositions that the present invention provides has the advantages that:
1, synergistic function, compares single use and significantly improves weed control effect；
2, expand weed control spectrum, prevent and treat the annual grassy weeds such as barnyard grass, Semen Euphorbiae, Herba Cyperi Difformis, Herba monochoriae vaginalis simultaneously, make up the single use deficiency to part weeds weak effect；
3, each compound herbicide mechanism of action is different, overcomes long-term single use easily to produce the shortcoming of resistance, extends the service life of compound, the comprehensive control important in inhibiting to Weed Resistance；
4, reduce compound amount, reduce material and use, alleviate compound to environmental injury；
5, production technology is simple, easy to use, reduces single processing, circulation cost.
Detailed description of the invention
In order to be more fully understood that the essence of the present invention; below in conjunction with embodiment, present disclosure is described further; but limitation of the present invention can not be considered as; the following stated is only used for explaining the present invention; for the amendment made without departing from present invention spirit and principle, replace or improve, belong to the scope of protection of present invention.
In the following example, effective ingredient percentage composition is folding hundred content.
Embodiment 1 synergism embodiment.
The built-in quantitative soil of polypots at high 6cm, diameter 9cm, to sow in polypots for examination target weed seed 15～20, it is placed on temperature indoor cultivation after the thick fine earth of lid 0.5～1cm, spraying treatment is carried out when weeds length is germinateed, every alms bowl spraying liquid 1mL, often process and be repeated 4 times, and set the process without medicament as compareing.Trying material after process and be placed in temperature indoor cultivation, the growing state of routine observation target weeds. test weighs aerial parts weeds fresh weight after processing 20d, evaluates the medicament toxicity action to target weeds with target fresh weight inhibition.
Calculate weeds suppression ratio formula as follows:
Suppression ratio (%)
×100。
Evaluating herbicide associated form (NY/T 1155.7-2006) according to Colby method, its formula is as follows:
E0?。
In formula:
A is (a) with certain dosage fresh weight inhibition to target weeds time alone；
B is (b) with certain dosage fresh weight inhibition to target weeds time alone；
C is (c) with certain dosage fresh weight inhibition to target weeds time alone；
N is the herbicide kind number being used in mixed way；
E0For theoretical value to target weeds fresh weight inhibition when (a), (b), (c) three kinds of pharmacy mix；
It is the measured value of comparison to target weeds fresh weight inhibition when E is (a), (b), (c) three kinds of pharmacy mix.
Evaluation criterion: work as E0During E ＞ 10%, it is expressed as synergistic function；As 10%≤E0During E≤10%, show as collaborative summation action；Work as E0During E ＜ 10%, show as joint action of antagonism.
Be can be seen that by table 1, table 2, table 3 and table 4 toxicity test result, penoxsuam metribuzin bensulfuron-methyl combines, penoxsuam metribuzin pyrazosulfuron combines, penoxsuam metribuzin halosulfuronmethyl combines, and penoxsuam metribuzin promazine Sulfometuron Methyl combines barnyard grass, Semen Euphorbiae, Herba Cyperi Difformis, Herba monochoriae vaginalis E0-E(%) value more than 10%, show as synergistic function.
Table 1 penoxsuam, metribuzin, bensulfuron-methyl and combinations thereof to barnyard grass (Echinochloa crusgalli ) toxicity test.
Table 2 penoxsuam, metribuzin, pyrazosulfuron and combinations thereof to Semen Euphorbiae (Leptochloachinensis) toxicity test.
Table 3 penoxsuam, metribuzin, halosulfuronmethyl and combinations thereof to Herba Cyperi Difformis (Cyperus difformis) toxicity test.
Table 4 penoxsuam, metribuzin, piperazine pyrazosulfuron and combinations thereof to Herba monochoriae vaginalis (Monochoria vaginalis) toxicity test.
Embodiment 2 composite preparation process example.
2% penoxsuam 3% metribuzin 5% bensulfuron-methyl wettable powder: penoxsuam 2%, metribuzin 2%, bensulfuron-methyl 5%, pull open powder 4%, K-12 3%, sodium butylnaphthalenesulfonate 5%, sodium lignin sulfonate 5%, sodium methylene bis-naphthalene sulfonate 2%, Kaolin supplies 100%.Above-mentioned formula is weighed in proportion, mix homogeneously, after comminution by gas stream after mechanical activation comminution, mix homogeneously, can be prepared by 2% penoxsuam 3% metribuzin 5% bensulfuron-methyl wettable powder.
4% penoxsuam 4% metribuzin 2% pyrazosulfuron suspending agent: penoxsuam 4%, metribuzin 4%, pyrazosulfuron 2%, Oleate 4%, sodium alginate 0.8%, NP-4 3%, propylene glycol 3%, azone 2%, Pyrusussuriensis sodium alkoxide 0.3%, organosilicon 5%, xanthan gum 0.2%, deionized water complements to 100%.Above-mentioned formula is weighed in proportion, mix homogeneously, pulverize in advance, add in sand mill and grind, clipped, can be prepared by 4% penoxsuam 4% metribuzin 2% pyrazosulfuron suspending agent.
2% penoxsuam 4% metribuzin 4% halosulfuronmethyl dispersibles oil-suspending agent: penoxsuam 2%, metribuzin 4%, halosulfuronmethyl 4%, 602# 3%, organosilicon 3%, sodium lignin sulfonate 3%, phosphate ester 3%, white carbon 2%, organobentonite 1%, dodecyl sodium sulfonate calcium salt 4%, soybean oil to 100%.Above-mentioned formula is weighed in proportion (except organobentonite) and joins in reactor mixer together, stir 2 hours, open bottom pan feeding valve, material is injected in stage sand grinding machine and grind, put in high-shear emulsifying still together with the organobentonite dissolved in advance again and shear, can be prepared by 2% penoxsuam 4% metribuzin 4% halosulfuronmethyl and dispersible oil-suspending agent.
5% penoxsuam 5% metribuzin 20% piperazine pyrazosulfuron water dispersible granule: penoxsuam 5%, metribuzin 5%, piperazine pyrazosulfuron 20%, K-12 5%, glucose 4%, white sugar 0.5%, carbamide 3%, anhydrous calcium chloride 0.3%, fine particle calcium carbonate to 100%.Above-mentioned formula is weighed in proportion mix homogeneously in addition cone-type mixer; pulverize through jet mill; mix through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into extruder grain in Squeezinggranulator, through being dried, sieving after pelletize, can be prepared by 5% penoxsuam 5% metribuzin 20% piperazine pyrazosulfuron water dispersible granule.
Embodiment 3 composition for preventing and controlling transplanted rice field annual grassy weeds field efficacy.
Use age: after rice transplanting 6 days.
Using method: compositions mixes 8 kg urea and spreads fertilizer over the fields, keeps 3-5CM water layer 7 days after spreading fertilizer over the fields.
Investigation method: after medicine 20 days, uses 5 point samplings investigation each process weeds fresh weights.
nullAs can be seen from Table 4，2% penoxsuam 3% metribuzin 5% bensulfuron-methyl wettable powder prevention effect 91.70～95.04%，4% penoxsuam 4% metribuzin 2% pyrazosulfuron suspending agent prevention effect 92.29～95.83%，2% penoxsuam 4% metribuzin 4% halosulfuronmethyl dispersibles oil-suspending agent prevention effect 93.83～96.25%，5% penoxsuam 5% metribuzin 20% piperazine pyrazosulfuron water dispersible granule prevention effect 93.43～95.97%，Composition for preventing and controlling effect is substantially better than 22% penoxsuam suspending agent，30% metribuzin suspending agent，10% bensulfuron-methyl wettable powder，75% halosulfuronmethyl water dispersible granules，33% piperazine pyrazosulfuron water dispersible granule，Improve actual preventing and treating effect to want，Make up single use not sufficiently effective to some weeds，In use do not find Oryza sativa L. is produced harmful effect simultaneously.
20 days preventing and treating transplanted rice field annual grassy weeds effects after table 5 compositions medicine.
Claims (4)
1. a Herbicidal composition for rice field, it is characterized in that: by weeding effective ingredient (a), (b), (c) combination, a (), (b), (c) portfolio ratio are 1～20:1～20:1～20, (a) selected from penoxsuam (penoxsulam), (b) selected from metribuzin (oxaziclomefone), (c) selected from bensulfuron-methyl (bensulfuron methyl), pyrazosulfuron (Pyrazosulfuron -ethyl), halosulfuronmethyl (halosulfuron -methyl), promazine Sulfometuron Methyl (propyrisulfuron) any one.
Herbicidal composition for rice field the most according to claim 1, it is characterized in that: in terms of composition total weight, (a) accounts for 0.01～30%, b () accounts for 0.01～30%, (c) accounts for 0.01～30%, and remaining is the most acceptable adjuvant.
Herbicidal composition for rice field the most according to claim 1, it is characterised in that: the dosage form manufacturing technique of described compositions all belongs to existing known technology, including wettable powder, suspending agent, dispersibles oil-suspending agent, water dispersant one of which.
Herbicidal composition for rice field the most according to claim 1, it is characterised in that: Herbicidal combinations for rice terrace annual grassy weeds prevent and treat, especially barnyard grass (Echinochloa crusgalli ), Semen Euphorbiae (Leptochloachinensis), Herba Cyperi Difformis (Cyperus difformis), Herba monochoriae vaginalis (Monochoria vaginalis).
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| CN201510238654.2A CN106259397A (en) | 2015-05-12 | 2015-05-12 | A kind of Herbicidal composition for rice field |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106719760A (en) * | 2017-01-22 | 2017-05-31 | 江苏省苏科农化有限责任公司 | Herbicidal composition for rice field and its application |
| CN107027797A (en) * | 2017-05-22 | 2017-08-11 | 安徽蓝田农业开发有限公司 | A kind of herbicidal composition of Han oxaziclomefones and halosulfuronmethyl |
| CN107047591A (en) * | 2017-01-26 | 2017-08-18 | 安徽蓝田农业开发有限公司 | A kind of herbicidal composition of Han oxaziclomefones and promazine Sulfometuron Methyl |
| CN112088890A (en) * | 2020-10-22 | 2020-12-18 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing oxaziclomefone, bensulfuron methyl and penoxsulam |
-
2015
- 2015-05-12 CN CN201510238654.2A patent/CN106259397A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106719760A (en) * | 2017-01-22 | 2017-05-31 | 江苏省苏科农化有限责任公司 | Herbicidal composition for rice field and its application |
| CN107047591A (en) * | 2017-01-26 | 2017-08-18 | 安徽蓝田农业开发有限公司 | A kind of herbicidal composition of Han oxaziclomefones and promazine Sulfometuron Methyl |
| CN107027797A (en) * | 2017-05-22 | 2017-08-11 | 安徽蓝田农业开发有限公司 | A kind of herbicidal composition of Han oxaziclomefones and halosulfuronmethyl |
| CN112088890A (en) * | 2020-10-22 | 2020-12-18 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing oxaziclomefone, bensulfuron methyl and penoxsulam |
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