CN104855391A - Post-emergence herbicide containing bispyribac-sodium and ipfencarbazone used for rice - Google Patents
Post-emergence herbicide containing bispyribac-sodium and ipfencarbazone used for rice Download PDFInfo
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- CN104855391A CN104855391A CN201510268130.8A CN201510268130A CN104855391A CN 104855391 A CN104855391 A CN 104855391A CN 201510268130 A CN201510268130 A CN 201510268130A CN 104855391 A CN104855391 A CN 104855391A
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Abstract
The invention provides post-emergence herbicide containing bispyribac-sodium and ipfencarbazone used for rice. The post-emergence herbicide is characterized in that active ingredients of the post-emergence herbicide composition comprise bispyribac-sodium and ipfencarbazone in the weight ratio being 1: (0.1-80). The compound herbicide can control annual gramineous weeds such as caper euphorbia seeds, barnyard grass and the like as well as cyperaceous weeds and broadleaf weeds in a rice field, has a prominent synergism effect, has no influence on succeeding crops and is ideal.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of paddy rice herbicide after seedling containing two careless ether and triazole acyl grass amine.
Background technology
Paddy rice is not only the main cereal crops of China, one of Ye Shi world staple food crop, and nearly half population is all food with rice in the world.The cultivated area of paddy rice and output, all rank first in China cereal crops and produce throughout each continent except the South Pole, China's rice growing area accounts for 1/4 of national cereal crops, and every year about more than 3,500 ten thousand hectares, output then accounts for over half.The rice field of all rice workspaces of China, always has a large amount of weeds to occur, and wherein medium crop smothering area accounts for more than 46% of total cultivated area, and serious injured area, more than 11.5%, causes annual grain loss up to more than 200 hundred million kilograms therefrom.Therefore, in order to improve rice yield, the usage ratio of domestic water herbicides for use in paddy almost reaches 100%, and its dosage is very large.
Along with the development of agricultural cience and farming techniques, chemical herbicide apply as saving of labor, save time, one of cost-effective strong well stimulation.At present, rice herbicide kind is more, and wherein representative have the third careless amine, butachlor, dichloro quinolinic acid, the benthiocarb of preventing and kill off grassy weed and prevent and kill off the bensulfuron-methyl, pyrazosulfuron etc. of broad leaved weed and sedge weed.But along with the extensive use of weed killer herbicide, Weed Resistance problem is on the rise.
Two careless ether belongs to pyrimidinylthiobenzoate herbicides, is highly active acetolactate synthestase (ALS) inhibitor, can be absorbed very soon, and conduct to whole plant after dispenser by the cauline leaf of weeds, suppresses the growth of plant meristematic tissue, thus kills weeds.There is the feature efficient, wide spectrum, consumption are extremely low.It effectively can prevent and kill off barnyard grass in paddy field and other grassy weeds, doublely control most of broad leaved weed, some sedge weeds and the barnyard grass to other weed killer herbicide generation resistance, as: barnyard grass, Paspalum distichum, rice Leersia Sw, lady's-grass, agrostis stolonifera, amur foxtail, northeast Tian Mao, wolf tail grass, abnormity nutgrass flatsedge, sunshine, wooden dipper stroked grass, cyperus iria, firefly Lin, Japanese grass, flat stalk grass, Monochoria vaginalis, Monochoria korsakowii, wild arrowhead, rhizoma alismatis, pondweed, pipewort, needle spikesedge herb, mexicana, Procumbent Falsepimpernel, triquetrousc murdannia herb, alternanthera philoxeroides, most weeds that flower Lin waits paddy field common.
Triazole acyl grass amine is the triazolineone weed killer herbicide developed by Japanese Hokko Chemical Industry Co., Ltd., its mechanism of action is proporphyrinogen oxidase inhibitor, causing cell membrane disruption by suppressing proporphyrinogen oxidase in chlcrophyll biosynthesis process, making blade withered, dead rapidly.All can use before bud, after bud, be mainly used in preventing and kill off paddy field grassy weed, sedge weed and part broad leaved weed.
Summary of the invention
The object of this invention is to provide one and can prevent and kill off grassy weed, sedge weed and broad leaved weed can be prevented and kill off again, and respond well paddy rice post-emergence complex weedicide.
In order to realize foregoing invention object, the invention provides following technical scheme:
Contain a paddy rice herbicide after seedling for two careless ether and triazole acyl grass amine, it is characterized in that: the active ingredient of described paddy rice herbicide after seedling is two careless ether and the careless amine of triazole acyl, and the weight ratio of described two careless ether, triazole acyl grass amine is 1:0.1 ~ 80.
Preferably, the weight ratio of described two careless ether and triazole acyl grass amine is 1:4 ~ 15.
More preferably, the weight ratio of described two careless ether and triazole acyl grass amine is 1:8.
More preferably, also containing safener diethylamino ethanol caproate, its quality accounts for the 0.01%-0.1% of described paddy rice herbicide after seedling gross mass.
The quality of described two careless ether and triazole acyl grass amine and account for 0.1 ~ 85% of described paddy rice herbicide after seedling gross mass.
The formulation of described paddy rice herbicide after seedling is for dispersibling oil-suspending agent, granule, wetting powder, water dispersible granules, missible oil, aqueous emulsion or microemulsion.
The synergy after mixture is evaluated by the co-toxicity coefficient method of Sun Yunpei, the two careless ether of result display, triazole acyl grass amine are obviously greater than 120 in the co-toxicity coefficient that 1:4 ~ 15 ratio is composite, reach remarkable synergistic effect, illustrate that the careless amine of two careless ether, triazole acyl all has synergistic effect in 1:4 ~ 15 ratio mixture, wherein, it is maximum that two careless ether, triazole acyl grass amine presses the effect of 1:8 effect compound synergic, all has significant synergies to annual single broadleaf weed and nutgrass flatsedge.
Show the Security test test of paddy rice, the composite cauline leaf process of two careless ether triazole acyl grass amine, tries to achieve the ED suppressing paddy growth 10% by DPS software
10=1125.6415, suppress the ED of weed growth 90%
90=184.3783, selectivity factor is 1125.6415/184.3783=6.11>2, thinks that this medicament has obvious selectivity, and two careless ether triazole acyl grass amine has good safety to paddy rice.
Complex weedicide of the present invention is shown by the field control effectiveness test of 2 years, and in the paddy rice 3 leaf phase to period of seedling establishment, weeds 1-5 leaf does not wait the phase, and paddy rice has no symptom of chemical damage from dispenser to maturing stage, to rice safety.The preventive effect of weeds reaches more than 80% in 10 days, within 30 days, reaches more than 90%, along with the increase of dosage, preventive effect obviously strengthens, and a dispenser can control the weeds in crop whole vegetative period, and not only herbicidal effect is remarkable, and environmentally friendly, on second stubble crop without impact.
Compared with prior art, complex weedicide of the present invention can prevent and kill off grassy weed, can prevent and kill off broad leaved weed and nutgrass flatsedge again, to rice safety, and on succession crop without impact, has a good application prospect.
Embodiment
The invention discloses a kind of paddy rice herbicide after seedling comprising two careless ether and triazole acyl grass amine two kinds of active components, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention and application are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope methods and applications as herein described are changed or suitably change with combination, realize and apply the technology of the present invention.
Below in conjunction with embodiment, set forth the present invention further:
The two careless ether triazole acyl grass amine wetting powder (two careless ether: triazole acyl grass amine=1:4) of embodiment 1:60%
Get the two careless ether of 12kg, 48kg triazole acyl grass amine, 4kg dispersant NNO, 3kg wetting agent K12,4kg White Carbon black, 0.08kg diethylamino ethanol caproate, precipitated calcium carbonate complements to 100kg.Through fully mixing, air-flow crushing, mixing, obtain wetting powder.
The two careless ether triazole acyl grass amine missible oil (two careless ether: triazole acyl grass amine=1:6) of embodiment 2:28%
Get the two careless ether of 4kg, 24kg triazole acyl grass amine, emulsifier 10kg, solvent complement to 100kg.Through abundant mixing preparation, obtain missible oil.
The two careless ether triazole acyl grass amine of embodiment 3:18% dispersibles oil-suspending agent (two careless ether: triazole acyl grass amine=1:8)
Get the two careless ether of 2kg, 16kg triazole acyl grass amine, 8kg Pluronic125 (polyoxyethylene polyoxypropylene blocked copolymer), 0.01kg diethylamino ethanol caproate, methylated vegetable oil complements to 100kg.Through abundant mixing preparation, ball mill grinding, adjust, be packaged to be oil-suspending agent.
The two careless ether triazole acyl grass amine water dispersible granules (two careless ether: triazole acyl grass amine=1:10) of embodiment 4:78%
Get the two careless ether of 7kg, 70kg triazole acyl grass amine, 5kg D-425 (naphthalenesulfonate formaldehyde condensation compound), 2kg alkylnaphthalene sulfonate, 1kg polyethylene glycol, 0.1kg diethylamino ethanol caproate, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
The two careless ether triazole acyl grass amine granule (two careless ether: triazole acyl grass amine=1:12) of embodiment 5:78%
Get the two careless ether of 6kg, 72kg triazole acyl grass amine, 4kg dispersant NNO, 3kg wetting agent K12,4kg White Carbon black, 0.08kg diethylamino ethanol caproate, precipitated calcium carbonate complements to 100kg.Through fully mixing, air-flow crushing, granulation, obtain granule.
The two careless ether triazole acyl grass amine water dispersible granules (two careless ether: triazole acyl grass amine=1:15) of embodiment 6:80%
Get the two careless ether of 5kg, 75kg triazole acyl grass amine, 7kg D-425 (naphthalenesulfonate formaldehyde condensation compound), 5kg EFW (alkylnaphthalene sulfonate), 5kg ammonium sulfate, 2kg polyethylene glycol, 0.01kg diethylamino ethanol caproate, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
Embodiment 7: two careless ether and triazole acyl grass amine cauline leaf process synergy toxicity measure
Under greenhouse experiment, adopt pot-culture method, the herbicidal effect of the two careless ether of research, triazole acyl grass amine binary built, and the synergy type after using with both co-toxicity coefficient method evaluations different proportion of Sun Yunpei, for the rational mixture of two careless ether and triazole acyl grass amine provides scientific basis.
For studying thing rice varieties: Feng Liangyou
To gather seed for examination weed moleplant seed (Leptochloachinensis (L.) Nees), barnyard grass (Echinochloa crusgalli (L.) Beauv.), short arrowhead (Sagittaria pygmaea), Monochoria vaginalis (Monochoria vaginalis (Burm.f.) Presl), difformed galingale herb (Cyperus difformis L.) field upper one year, germination rate is more than 85%).
Reagent agent 97% pair of former medicine of careless ether (Lv Ba chemical inc, Shandong); The 95% triazole acyl grass former medicine of amine (Anhui Fengle Agricultural Co., Ltd provides for oneself).Take quantitative former medicine with electronic balance, add appropriate emulsifier, with acetone solution, finally with the POLYSORBATE 80 aqueous solution of 0.1%, above-mentioned former medicine is diluted to desired concn.
Two careless ether, triazole acyl grass amine single dose and 5 two careless ethers and triazole acyl grass amine mixture preparation are established 5 dosage respectively, and described ratio is the active component weight ratio of two careless ether and triazole acyl grass amine.Separately establish blank, each test process repetition 4 times.Treatment agent dosage refers to table 1.
Table 1 tests process and test level (concentration ga.i./kg)
In paddy rice 3 leaf phase, weeds 2-4 leaf phase cauline leaf spraying process 1 time.Record the damage symptoms of paddy rice and weeds after dispenser in detail, 20d after medicine, carries out fresh weight measurement, and compared with control treatment, calculates fresh weight preventive effect.
The co-toxicity coefficient method evaluation of result of the test Sun Yunpei use with after synergy type.Its actual toxicity index, mixture theoretical toxicity index, co-toxicity coefficient is calculated according to SUN, Y-P (Sun Yunpei) method.Take log concentration as X, damage by disease and insect preventive effect probit value is Y, asks regression equation.
Actual toxicity index=standard agent LD
50the LD of/mixture
50× 100
Theoretical toxicity index=∑ (percentage of this medicament active ingredient of the toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
In test with two careless ether for standard agent.
Criterion: co-toxicity coefficient <80 is antagonism, be summation action between 80-120, >120 is synergistic effect.
The synergy of two careless ether and triazole acyl grass amine is shown in Table 2:
After table 2 pair careless ether and triazole acyl grass amine mixture medicine, 20d is to the fresh weight preventive effect of weeds
In table, control efficiency is the mean value of four data.
As shown in Table 2: medicament is to the toxic action situation of weeds and preventive effect.By its respective virulence regression equation, LD of formulae discovery
50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.List in table 3.
Table 3: two careless ether and triazole acyl grass amine mixture are to the synergy of weeds
From test, the co-toxicity coefficient of process C, D, E, F, G is respectively: 130.93,156.41,246.22,202.13,163.45, the co-toxicity coefficient of each process is all greater than 120, there is synergistic effect, the co-toxicity coefficient particularly processing E is maximum, reach 246.22, have significant synergies.Illustrate that the careless amine of two careless ether, triazole acyl has significant synergies to annual dicotyledonous weeds and nutgrass flatsedge in 1:4 ~ 15 ratio mixture.
Embodiment 8: the composite cauline leaf process of two careless ether triazole acyl grass amine is tested the Security test of paddy rice
Under greenhouse experiment, adopt pot-culture method, study two careless ether, the process of triazole acyl grass amine binary built cauline leaf to the safety of paddy rice, for the rational mixture of two careless ether and triazole acyl grass amine provides scientific basis.
For studying thing rice varieties: Feng Liangyou
To gather seed for examination weed moleplant seed (Leptochloachinensis (L.) Nees), barnyard grass (Echinochloa crusgalli (L.) Beauv.), short arrowhead (Sagittaria pygmaea), Monochoria vaginalis (Monochoria vaginalis (Burm.f.) Presl), difformed galingale herb (Cyperus difformis L.) field upper one year, germination rate is more than 85%).
Reagent agent 97% pair of former medicine of careless ether (Lv Ba chemical inc, Shandong); The 95% triazole acyl grass former medicine of amine (Anhui Fengle Agricultural Co., Ltd provides for oneself).Take quantitative former medicine with electronic balance, add appropriate emulsifier, with acetone solution, finally with the POLYSORBATE 80 aqueous solution of 0.1%, above-mentioned former medicine is diluted to desired concn.
In paddy rice 3 leaf phase, weeds 2-4 leaf phase cauline leaf spraying process 1 time.After dispenser, investigate each process paddy rice with or without symptom of chemical damage, if having, record symptom of chemical damage, grade in detail, after medicine 20 days, measure each process paddy rice fresh weight, calculate fresh weight inhibition, with the safety of clear and definite test medicine to paddy rice.
The damage symptoms (as growth inhibition, chlorosis, deformity etc.) of detailed record weeds after dispenser, after medicine 20 days, weighs each process weeds acrial part fresh weight, the fresh weight preventive effect of calculating weeds.
Regression analysis is carried out, dosage ED when calculating correlation coefficient and suppress crop 10% by the probability value of DPS software to the logarithm value of drug dose and paddy rice fresh weight inhibition
10, and suppress weeds 90%ED
90, obtain selectivity index.
Selectivity index=ED
10/ ED
90
The process of two careless ether triazole acyls grass amine cauline leaf to the safety evaluatio standard of paddy rice in table 4, within after dispenser 3 days, observe, high dose 4 times process 1200mg/kg process indivedual paddy rice lobus cardiacus of 60% pair that embodiment 1 is prepared careless ether triazole acyl grass amine wetting powder has slight jaundice, growth is subject to slight suppression, and other concentration process paddy growth is normal; 7-12 days after dispenser, low concentration process paddy rice growing way is normal, and paddy rice also slowly recovers in 1200mg/kg process.After dispenser 20 days 60% couple of careless ether triazole acyl grass amine WG to the inhibitory action of paddy rice in table 5.
Table 4: activity of weeding and crop safety ocular estimate evaluation criterion
The two careless ether triazole acyl grass amine WP of table 5:60% is to the inhibitory action of paddy rice
The two careless ether triazole acyl grass amine WP of table 6:60% is to the fresh weight preventive effect of weeds
This medicament is to the toxic action situation of weeds and preventive effect as shown in Table 6, by formulae discovery its each virulence regression equation, LD
50, list in table 7.
Table 7: virulence regression equation and LD
50
| Process | Regression equation | Correlation coefficient | LD 50 | 95% confidence interval |
| A | Y＝0.7954+2.4214x | 0.9951 | 54.5057 | 48.5151～61.2359 |
As shown in Table 7: the LD of 60% couple of careless ether triazole acyl grass amine WG
50for: 54.5057,95% confidence interval is 48.5151-61.2359.
By table 5, table 6, tried to achieve the ED suppressing paddy growth 10% by DPS software
10=1125.6415, suppress the ED of weed growth 90%
90=184.3783, selectivity factor is 1125.6415/184.3783=6.11>2, thinks that this medicament has obvious selectivity, with high dose process and times amount process paddy growth normal.
Embodiment 6: this field control effectiveness test
Complex weedicide of the present invention is shown by the field control effectiveness test of 2 years, the rice striking root phase before the winter, weeds 1-5 leaf does not wait the phase, 18% pair that utilizes the embodiment of the present invention 3 to prepare careless ether triazole acyl grass amine (2% pair of careless ether+16% triazole acyl grass amine) dispersibles oil-suspending agent (OF) dosage 80,100,120,200 milliliters/mu, be watered 40 kgs/acre to spray, 20,60 days and maturing stage range estimation Security of rice and Weed-control effect, 20, within 60 days, survey all preventive effects, result is as following table:
By range estimation, paddy rice has no symptom of chemical damage from dispenser to maturing stage, to rice safety.18% couple of careless ether triazole acyl grass amine OF, 80 milliliters of/mu preventive effects to weeds, within 10 days, reach more than 80%, within 30 days, reach more than 90%, along with the increase of dosage, preventive effect obviously strengthens, and can have good herbicidal effect paddy field 80 milliliters/mu to weeds, and is used alone wherein a kind of active ingredient and compares, expand herbicide spectrum, to grassy weed, broad leaved weed and nutgrass flatsedge, there is obvious synergistic effect.A dispenser can control the weeds in crop whole vegetative period, and not only herbicidal effect is remarkable, and environmentally friendly, on second stubble crop without impact, little to the pollution of environment, to people, animal, birds and beneficial organism safety, is conducive to keeping ecological balance.In addition, weed killer herbicide of the present invention adopts physical method processing, and production technology is simple, and three-waste free discharge in production process, has no adverse effects to ecotope.It is the desirable complex weedicide of current control efficiency.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. contain a paddy rice herbicide after seedling for two careless ether and triazole acyl grass amine, it is characterized in that: the active ingredient of described paddy rice herbicide after seedling is two careless ether and the careless amine of triazole acyl, and the weight ratio of described two careless ether, triazole acyl grass amine is 1:0.1 ~ 80.
2. paddy rice herbicide after seedling according to claim 1, is characterized in that: the weight ratio of described two careless ether and triazole acyl grass amine is 1:4 ~ 15.
3. paddy rice herbicide after seedling according to claim 2, is characterized in that: the weight ratio of described two careless ether and triazole acyl grass amine is 1:8.
4. the paddy rice herbicide after seedling according to any one of claim 1-3, is characterized in that: also containing safener diethylamino ethanol caproate, its quality accounts for the 0.01%-0.1% of described paddy rice herbicide after seedling gross mass.
5. paddy rice herbicide after seedling according to claim 1, is characterized in that: the quality of described two careless ether and triazole acyl grass amine and account for 0.1 ~ 85% of described paddy rice herbicide after seedling gross mass.
6. paddy rice herbicide after seedling according to claim 1, is characterized in that: the formulation of described paddy rice herbicide after seedling is for dispersibling oil-suspending agent, granule, wetting powder, water dispersible granules, missible oil, aqueous emulsion or microemulsion.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106982845A (en) * | 2017-05-19 | 2017-07-28 | 北京科发伟业农药技术中心 | A kind of Herbicidal combinations containing the Evil humulones of ring penta and three azole amides |
| CN108849957A (en) * | 2018-08-24 | 2018-11-23 | 安徽丰乐农化有限责任公司 | A kind of rice post-emergence complex weedicide containing three azole amides and benthiocarb |
| CN110839648A (en) * | 2018-08-21 | 2020-02-28 | 燕化永乐（乐亭）生物科技有限公司 | Weeding composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013114A (en) * | 2007-07-05 | 2009-01-22 | Hokko Chem Ind Co Ltd | Herbicide for paddy field and herbicidal method of paddy field |
| CN104430465A (en) * | 2014-11-18 | 2015-03-25 | 山东滨农科技有限公司 | Herbicide composition containing clefoxidim |
-
2015
- 2015-05-24 CN CN201510268130.8A patent/CN104855391A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013114A (en) * | 2007-07-05 | 2009-01-22 | Hokko Chem Ind Co Ltd | Herbicide for paddy field and herbicidal method of paddy field |
| CN104430465A (en) * | 2014-11-18 | 2015-03-25 | 山东滨农科技有限公司 | Herbicide composition containing clefoxidim |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106982845A (en) * | 2017-05-19 | 2017-07-28 | 北京科发伟业农药技术中心 | A kind of Herbicidal combinations containing the Evil humulones of ring penta and three azole amides |
| CN110839648A (en) * | 2018-08-21 | 2020-02-28 | 燕化永乐（乐亭）生物科技有限公司 | Weeding composition |
| CN108849957A (en) * | 2018-08-24 | 2018-11-23 | 安徽丰乐农化有限责任公司 | A kind of rice post-emergence complex weedicide containing three azole amides and benthiocarb |
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