CN104855394A - Post-emergence herbicide composition containing topramezone and used for corn - Google Patents
Post-emergence herbicide composition containing topramezone and used for corn Download PDFInfo
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Abstract
The invention discloses post-emergence herbicide composition containing topramezone and used for corn. Active ingredients of the herbicide composition comprise topramezone and pethoxamid in the weight ratio being (0.1-70): (0.1-80) and further comprise atrazine, and the weight ratio of topramezone to pethoxamid to atrazine is (0.1-70): (0.1-80): (0.1-80). The herbicide composition can control annual gramineous weeds in a corn field, can control broadleaf weeds and nutgrass flatsedge and has a remarkable weed control effect and a prominent synergism effect; besides, the herbicide composition can control weeds in the whole growth period of crops after one-time application, has no influence on succeeding crops and is ideal herbicide.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of Weeding composition applied in post-emergence period of corn containing benzene azoles humulone.
Technical background
Corn is the important cereal crops of China, is also important forage crop.In recent years, along with the development of the industries such as livestock breeding, food processing, wine-making industry and biodiesel, the market demand of corn constantly increases.Within 2012, China's maize sown area reaches 3994.9 ten thousand hectares, is only second to paddy rice, becomes second largest long-term cropping, and also has the trend increased.The weeds of corn field occur general, of a great variety, and occur serious at Huang-Huai-Hai summer corn crop smothering, 82% ~ 96% of crop smothering occurring area Zhan Gai district cultivated area, wherein medium above hazard area reaches 64 ~ 66%.Maize at Seedling Stage is the most serious by crop smothering, little in the impact of corn growth middle and later periods weeds on output.When Maize Seedling is by Weed infestation, plant is short and small, bar spire yellow, causes middle and later periods corn growth bad, Severe Reduction.
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.The chemical control of corn field weed mostly after broadcasting before seedling and after seedling early stage two critical periods carry out, ordinary maize herbicide after seedling is before the corn 2 leaf phase, and 6 leaf after date medications are dangerous.At present, corn herbicide kind is more, and the wherein representative kind of Control Weeds in Maize Field that has has nicosulfuron and mesotrione.But nicosulfuron has poisoning to some corn variety, mesotrione is good to corn safety, but is not very desirable to grassy weed effect.
The maximum advantage of benzene azoles humulone (bud is defended) is exactly safety, and it has good selectivity to the corn of the overwhelming majority, comprises ordinary maize, Sweety and waxy corn, pop corn; And can use by whole growth period after maize seedling.In addition, bud is defended most of annual corn field common weed, and especially grassy weed, has good preventive effect; Bud is defended and is added atrazine, and dead careless speed is accelerated, and within 2-4 days, weeds obviously occur alphosis, and in 2 weeks, weeds are thoroughly dead, to the large grass in corn dispenser evening phase, and dayflower, the malignant weeds such as acalypha copperleaf have better control efficiency.3rd advantage is that the lasting period is long, and bud defends mixed atrazine, and the control grass phase can reach more than 35 days; It has the wider operating period than conventional herbicide after seedling, can allow the situations such as peasant household emerges in more suitable weeds, farming season time dispenser.Have well mixed compatible with atrazine etc.But because the atrazine lasting period is long, harmful to late stubble sensitive crop wheat, soybean, paddy rice etc., the lasting period reaches 2-3 month.
Benzene azoles humulone and atrazine, if atrazine consumption is excessive, have herbicide carryover to second stubble crop.If dosage is too small, do not have synergistic effect again.
Pethoxamid is a kind of selective herbicide, for preventing and kill off corn and Soybean Field grass family and broad leaved weed.Pethoxamid is cell division inhibitor.This product is systemic herbicide, absorbed by root and tender shoots, general before bud or after bud in early days for preventing and kill off the grassy weeds such as the barnyard grass of corn and Soybean Field, lady's-grass and geniculate bristlegrass herb or root, and the broad leaved weed such as Amaranthus retroflexus, lamb's-quarters, formulation rate is 1.0 ~ 2.4kg/hm2.Also complex preparation can be used, to improve the preventive effect to broad leaved weed.
Summary of the invention
The object of this invention is to provide one and can prevent and kill off grassy weed, broad leaved weed and nutgrass flatsedge can be prevented and kill off again, and respond well Weeding composition applied in post-emergence period of corn, and the complex weedicide to succession crop safety.
In order to realize foregoing invention object, the invention provides following technical scheme:
The active ingredient of described Herbicidal combinations comprises benzene azoles humulone and pethoxamid, and the weight ratio of described benzene azoles humulone and pethoxamid is 0.1-70:0.1-80.
Further scheme, the active ingredient of described Herbicidal combinations also comprises atrazine, and the weight ratio of described benzene azoles humulone, pethoxamid and atrazine is 0.1-70:0.1-80:0.1-80.
As preferably, the weight ratio of benzene azoles humulone, pethoxamid and atrazine is 1.2 ~ 2:15 ~ 40:15 ~ 40.
More preferably, the weight ratio of benzene azoles humulone, pethoxamid and atrazine is 2:30:20-35.
On the other hand, the invention provides benzene azoles humulone in biological described Herbicidal combinations, pethoxamid and atrazine three kinds of active components quality and for described Herbicidal combinations gross mass 0.5 ~ 85%.
As preferably, in Herbicidal combinations of the present invention, after benzene azoles humulone, pethoxamid two kinds of active components or benzene azoles humulone, pethoxamid and atrazine three kinds of active components are composite according to above-mentioned weight ratio, can be made into the formulations of pesticide such as dispersibling oil-suspending agent, suspending agent, suspension emulsion, wetting powder or water dispersible granules.
The synergy after mixture is evaluated by the co-toxicity coefficient method of Sun Yunpei, result display benzene azoles humulone and pethoxamid two kinds of active ingredients press 1.2:40, 1.4:30, 1.6:25, 1.8:20, 2:15 mixture, and benzene azoles humulone, pethoxamid and atrazine three kinds of active components press 1.2:35:15, 1.4:30:20, 1.6:25:25, 1.8:20:30, the composite co-toxicity coefficient of 2:15:40 ratio is obviously all greater than 120, reach remarkable synergistic effect, illustrate that benzene azoles humulone and pethoxamid two kinds of active ingredients are by 1.2 ~ 2:15 ~ 40 mixture and benzene azoles humulone, pethoxamid and atrazine three kinds of active components comparatively suitable in 1.2 ~ 2:15 ~ 40:15 ~ 40 ratio mixture, annual single broadleaf weed and nutgrass flatsedge are had significant synergies.
The Security test test of corn is shown that the composite cauline leaf process of benzene azoles humulone, pethoxamid and atrazine three kinds of active components suppresses the ED of corn growth 10%
10=3351.03, suppress the ED of weed growth 90%
90=575.31, selectivity factor is selectivity factor=3351.03/575.31=5.82>2, thinks that this medicament has obvious selectivity, and benzene azoles humulone, pethoxamid and atrazine three kinds of active components have good safety to corn.
Herbicidal combinations of the present invention is shown by the field control effectiveness test of 2 years, and in corn 3 ~ 5 leaf phase, weeds 2-5 leaf does not wait the phase, and corn has no symptom of chemical damage from dispenser to maturing stage, to corn safety.The preventive effect of weeds reaches more than 75.3% in 10 days, within 30 days, reach more than 90.5%, and along with the increase of dosage, preventive effect obviously strengthens, good herbicidal effect can be reached corn field 100 milliliters/mu, with be used alone wherein a kind of active ingredient and compare, expand herbicide spectrum, to 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.And little to the pollution of environment, to people, animal, birds and beneficial organism safety, be 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, is the desirable complex weedicide of current control efficiency.
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 corn safety, and on succession crop without impact, has a good application prospect.
Embodiment
The invention discloses a kind of Weeding composition applied in post-emergence period of corn comprising benzene azoles humulone, pethoxamid two kinds of active ingredients or comprise benzene azoles humulone, pethoxamid and atrazine three 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:
Embodiment 1:16.2% benzene azoles humulone pethoxamid dispersibles oil-suspending agent (benzene azoles humulone: pethoxamid=1.2:15)
Get 1.2kg benzene azoles humulone, 15kg pethoxamid, 8kg Pluronic125,5kg propane diols, 8kg xanthans, 1kg methylated vegetable oil, water complements to 100kg.Through abundant mixing preparation, ball mill grinding, adjust, be packaged to be and dispersible oil-suspending agent.
Embodiment 2:16.8% benzene azoles humulone pethoxamid suspending agent (benzene azoles humulone: pethoxamid=1.8:15)
Get 1.8kg benzene azoles humulone, 15kg pethoxamid, 8kg sodium lignin sulfonate, 5kg aliphatic alcohol polyethenoxy, 1kg xanthans, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ether, 5kg ethylene glycol, water complements to 100kg.Through abundant mixing preparation, ball mill grinding, adjust, be packaged to be suspending agent.
Embodiment 3:42% benzene azoles humulone pethoxamid water dispersible granules (benzene azoles humulone: pethoxamid=2:40)
Get 2kg benzene azoles humulone, 40kg pethoxamid, 7kg D-425,5kg EFW, 5kg ammonium sulfate, 2kg polyethylene glycol, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
Embodiment 4:17% benzene azoles humulone pethoxamid wetting powder (benzene azoles humulone: pethoxamid=2:15)
Get 2kg benzene azoles humulone, 15kg pethoxamid, 4kg dispersant NNO, 3kg wetting agent K12,4kg White Carbon black, precipitated calcium carbonate complements to 100kg.Through fully mixing, air-flow crushing, mixing, obtain wetting powder.
Embodiment 5:42% benzene azoles humulone pethoxamid atrazine dispersibles oil-suspending agent (benzene azoles humulone: pethoxamid: atrazine=2:20:20)
Get 2kg benzene azoles humulone, 20kg pethoxamid, 20kg atrazine, 8kg Pluronic125,5kg propane diols, 8kg xanthans, 1kg methylated vegetable oil, water complements to 100kg.Through abundant mixing preparation, ball mill grinding, adjust, be packaged to be and dispersible oil-suspending agent.
Embodiment 6:36.8% benzene azoles humulone pethoxamid atrazine suspending agent (benzene azoles humulone: pethoxamid: atrazine=1.8:15:20)
Get 1.8kg benzene azoles humulone, 15kg pethoxamid, 20kg atrazine, 8kg sodium lignin sulfonate, 5kg aliphatic alcohol polyethenoxy, 1kg xanthans, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ether, 5kg ethylene glycol, water complements to 100kg.Through abundant mixing preparation, ball mill grinding, adjust, be packaged to be suspending agent.
Embodiment 7:61.5% benzene azoles humulone pethoxamid atrazine water dispersible granule (benzene azoles humulone: pethoxamid: atrazine=1.5:40:20)
Get 1.5kg benzene azoles humulone, 40kg pethoxamid, 20kg atrazine, 7kg D-425,5kg EFW, 5kg ammonium sulfate, 2kg polyethylene glycol, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
Embodiment 8:71.2% benzene azoles humulone pethoxamid atrazine water dispersible granule (benzene azoles humulone: pethoxamid: atrazine=1.2:30:40)
Get 1.2kg benzene azoles humulone, 30kg pethoxamid, 40kg atrazine, 7kg D-425,5kg EFW, 5kg ammonium sulfate, 2kg polyethylene glycol, kaolin supplies 100%, obtains water dispersible granules through fully mixing, air-flow crushing, mixing, granulation, drying and screening.
Embodiment 9:32% benzene azoles humulone pethoxamid atrazine wetting powder (benzene azoles humulone: pethoxamid: atrazine=2:15:15)
Get 2kg benzene azoles humulone, 15kg pethoxamid, 15kg atrazine, 4kg dispersant NNO, 3kg wetting agent K12,4kg White Carbon black, precipitated calcium carbonate complements to 100kg.Through fully mixing, air-flow crushing, mixing, obtain wetting powder.
Embodiment 10: benzene azoles humulone, pethoxamid or benzene azoles humulone, pethoxamid and atrazine cauline leaf process synergy toxicity determination test
Under greenhouse experiment, adopt pot-culture method, the herbicidal effect of research benzene azoles humulone, pethoxamid two yuan composite or benzene azoles humulone, pethoxamid and atrazine ternary built, and the synergy type after using with the co-toxicity coefficient method evaluation three different proportion of Sun Yunpei, for the rational mixture of benzene azoles humulone, pethoxamid and atrazine provides scientific basis.
For studying thing: corn variety: tuck in single No. 2
For examination weeds: lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green foxtail (Setariaviridis (L.) Beauv.), acalypha copperleaf (Acalypha australis L.), lamb's-quarters (Chenopodium album L.), difformed galingale herb (Cyperus difformis L.) (upper one year gathered seed in field, and germination rate is more than 85%).
The cultivation of test material is carried out, temperature 25-35 DEG C in illumination cultivation room.Choosing diameter is 15cm, and be highly the vinyon basin alms bowl of 15cm, the permeable hole of 1cm diameter is beaten in the bottom of basin alms bowl.Permeable hole double-layer filter paper covers, and the loam that in alms bowl, loading prepares to sterilize in advance, to alms bowl height 10cm place, soaks into soil with clear water from bottom.During test, often kind of weed seed 30-40 grain is evenly put into basin, earthing 0.5cm, the required moisture of growth between weeds culture period, should be supplemented.
Reagent agent: the 97% former medicine of benzene azoles humulone (BASF European Co., Ltd); The former medicine of 95% pethoxamid (Anhui Fengle Agricultural Co., Ltd provides for oneself); The former medicine of 92% atrazine (Xuanhua Agriculture Chemicals Co., Ltd., Hebei).
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.
Benzene azoles humulone, pethoxamid single dose and 5 benzene azoles humulones and pethoxamid mixture preparation are established 5 dosage respectively, separately establishes 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)
Benzene azoles humulone pethoxamid mixture, atrazine single dose and 5 mixture preparations are established 5 dosage respectively, separately establishes blank, each test process repetition 4 times.Treatment agent dosage refers to table 2.
Table 2 tests process and test level (concentration ga.i./kg)
Process in corn 3 leaf phase, the spraying of weeds 2-4 leaf phase cauline leaf according to the dosage of medicament each in upper table 1,2 respectively.Record the damage symptoms of corn 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 benzene azoles humulone, atrazine for standard agent.
Criterion: co-toxicity coefficient <80 is antagonism, be summation action between 80-120, >120 is synergistic effect.
Benzene azoles humulone and the fresh weight preventive effect of pethoxamid mixture to weeds as shown in table 3:
After table 3 benzene azoles humulone and pethoxamid 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 3: 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 4.
Table 4: benzene azoles humulone and pethoxamid mixture are to the synergy of weeds
From test, the co-toxicity coefficient of process C, D, E, F, G is respectively: 190.69,203.97,217.43,181.00,147.43, co-toxicity coefficient is all greater than 120, there is synergistic effect, the co-toxicity coefficient particularly processing E is 217.43 to the maximum, there is remarkable synergistic effect, annual single broadleaf weed and nutgrass flatsedge are had significant synergies.
Benzene azoles humulone pethoxamid fresh weight preventive effect to weeds mixed with atrazine is as shown in table 5:
Table 5 benzene azoles humulone pethoxamid fresh weight preventive effect to weeds mixed with atrazine
In table, control efficiency is the mean value of four data.
As shown in Table 5: 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 6.
Table 6: benzene azoles humulone atrazine mixed ratio different from pethoxamid is to the indoor virulence of weeds and synergy
From test, the co-toxicity coefficient of process D, E, F, G, H is respectively: 124.24,147.69,175.54,175.49,173.22, co-toxicity coefficient is all greater than 120, reach synergistic effect, wherein the co-toxicity coefficient of F, G, H is close, reach more than 170, annual single broadleaf weed is had significant synergies.
Embodiment 11: the process of benzene azoles humulone pethoxamid atrazine cauline leaf is to the safety indoor measurement test report of corn
Under greenhouse experiment, adopt pot-culture method, study benzene azoles humulone, pethoxamid and the process of atrazine ternary built cauline leaf to the safety of corn, for the rational mixture of benzene azoles humulone, pethoxamid and atrazine provides scientific basis.
In corn 3 leaf phase, weeds 2-4 leaf phase cauline leaf spraying process, after dispenser, investigate each process corn with or without symptom of chemical damage, if have, record symptom of chemical damage, grade in detail, after medicine 20 days, measure each process corn fresh weight, calculate fresh weight inhibition, with the safety of clear and definite test medicine to corn.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 corn fresh weight inhibition
10, and suppress weeds 90%ED
90, obtain selectivity index.
Selectivity index=ED
10/ ED
90
Within after dispenser 5 days, observe, with 36.8% benzene azoles humulone pethoxamid atrazine suspending agent high concentration 4000mg/kg processing section corn lobus cardiacus albefaction of embodiment 6, plant height is normal, and the normal and blank process of low concentration process corn growing way is not significantly distinguished.
Table 7 activity of weeding and crop safety ocular estimate evaluation criterion
Table 8 36.8% benzene azoles humulone pethoxamid green bristlegrass suspending agent is to the inhibitory action of corn
Table 9 36.8% benzene azoles humulone pethoxamid green bristlegrass suspending agent is to the fresh weight preventive effect of weeds
As shown in Table 9: this medicament to the toxic action situation of weeds and preventive effect, by formulae discovery its each virulence regression equation, LD
50, list in table 10.
Table 10: virulence regression equation and LD
50
| Process | Regression equation | Correlation coefficient | LD <sub>50</sub> | 95% confidence interval |
| A | Y＝-0.5556+2.5902x | 0.9980 | 139.6038 | 121.1858～158.2047 |
As shown in Table 10: the LD of 36.8% benzene azoles humulone pethoxamid green bristlegrass suspending agent
50for: 139.6038,95% confidence interval is 121.1858-158.2047.
By table 8, table 9, can in the hope of suppressing the ED of corn growth 10% by DPS software
10=3351.03, suppress the ED of weed growth 90%
90=575.31, selectivity factor=3351.03/575.31=5.82>2, think that 6.8% benzene azoles humulone pethoxamid green bristlegrass suspending agent cauline leaf process high concentration process can cause corn albefaction to corn, other concentration process corn growth is normal, this medicament has obvious selectivity, to crop safety.
Embodiment 12: complex weedicide field control effectiveness test of the present invention
Complex weedicide of the present invention is shown by the field control effectiveness test of 2 years, in corn 3 ~ 5 leaf phase, weeds 1 ~ 5 leaf does not wait the phase, 42% benzene azoles humulone pethoxamid green bristlegrass of the embodiment of the present invention 5 is utilized to dispersible the dosage 80,100,120,200 milliliters/mu of oil-suspending agent (2% benzene azoles humulone+20% pethoxamid+20% atrazine), be watered 40 kgs/acre to spray, 10,30 days and maturing stage range estimation corn safety and Weed-control effect, within 10,30 days, survey all preventive effects, result is as following table:
By range estimation, corn has no symptom of chemical damage from dispenser to maturing stage, to corn safety.The preventive effect 80 milliliters/mu of weeds reaches more than 75.3% in 10 days, within 30 days, reach more than 90.5%, along with the increase of dosage, preventive effect obviously strengthens, good herbicidal effect can be reached corn field 100 milliliters/mu, with be used alone wherein a kind of active ingredient and compare, expand herbicide spectrum, to 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., containing a Weeding composition applied in post-emergence period of corn for benzene azoles humulone, it is characterized in that: the active ingredient of described Herbicidal combinations comprises benzene azoles humulone and pethoxamid, the weight ratio of described benzene azoles humulone and pethoxamid is 0.1-70:0.1-80.
2. Herbicidal combinations according to claim 1, is characterized in that: the active ingredient of described Herbicidal combinations also comprises atrazine, and the weight ratio of described benzene azoles humulone, pethoxamid and atrazine is 0.1-70:0.1-80:0.1-80.
3. Herbicidal combinations according to claim 2, is characterized in that: the weight ratio of described benzene azoles humulone, pethoxamid and atrazine is 1.2 ~ 2:15 ~ 40:15 ~ 40.
4. Herbicidal combinations according to claim 4, is characterized in that: the weight ratio of described benzene azoles humulone, pethoxamid and atrazine is 2:30:20-35.
5. Herbicidal combinations according to claim 2, is characterized in that: the quality of described benzene azoles humulone, pethoxamid and atrazine and be 0.5 ~ 85% of described Herbicidal combinations gross mass.
6. the Herbicidal combinations according to any one of claim 1-5, is characterized in that: the formulation of described Herbicidal combinations is for dispersibling oil-suspending agent, suspending agent, suspension emulsion, wetting powder or water dispersible granules.
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| CN105409999A (en) * | 2015-12-24 | 2016-03-23 | 安徽美兰农业发展股份有限公司 | Topramezone, nicosulfuron and atrazine compounded dispersible oil-based suspension agent and preparation method thereof |
| CN111202075A (en) * | 2020-03-02 | 2020-05-29 | 广西化工研究院有限公司 | Herbicide composition suitable for corn field and sugarcane field and preparation thereof |
| CN111202075B (en) * | 2020-03-02 | 2021-12-03 | 广西化工研究院有限公司 | Herbicide composition suitable for corn field and sugarcane field and preparation thereof |
| CN112493248A (en) * | 2020-11-17 | 2021-03-16 | 京博农化科技有限公司 | Weeding composition containing topramezone, clopyralid and bentazone |
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| CN104855394B (en) | 2017-06-13 |
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