CN102771507A - Glyphosate/2,4-D aqueous solution and application in preventing and treating Mikania micrantha thereof - Google Patents
Glyphosate/2,4-D aqueous solution and application in preventing and treating Mikania micrantha thereof Download PDFInfo
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Abstract
The invention discloses a glyphosate/2,4-D ((2,4-dichlorophenyloxy)acetic acid) aqueous solution and an application in preventing and treating Mikania micrantha thereof. The glyphosate/2,4-D aqueous solution comprises 2,4-D weeding compound, glyphosate weeding compound, emulsifier, water and ethanol. Compared with other preparations, the aqueous solution is processed easily, and has the characteristics of low phytotoxicity, low toxicity, easy dilution, safe and convenient use, and excellent biological effect. Meanwhile, the glyphosate/2,4-D aqueous solution weeding compound is provided with significant synergistic effect, the co-toxicity coefficient is higher than 174.49, the synergistic effect is significant, and the function of completely preventing and treating Mikania micrantha is realized when the dose is higher than the 2000ga.i.hm<-2> recommended dose; compared with other weeding agents for preventing and treating Mikania micrantha, the weeding agent provided by the invention has the advantages of low dose and low cost.
Description
Technical field
The present invention relates to the weed killer herbicide field, be specifically related to a kind of glyphosate/2, the purposes of 4-D aqua and control Mikania micrantha thereof.
Background technology
Mikania micrantha (Mikania micrantha) is the perennial liane of the false Eupatorium of composite family, originates in Central and South America, has been distributed widely in Southeast Asia at present, and late 1980s is imported the Guangdong Coastal area into, forms serious harm in Delta of the Pearl River area at present.
Chemical control is one of main method of control Mikania micrantha, and as far back as nineteen sixty-eight, Dutta etc. have just carried out the research of Mikania micrantha chemical control.Ipor and Price have also carried out the further investigation of a series of Mikania micrantha chemical controls subsequently, and inquire into Mikania micrantha the absorption of weed killer herbicide and transportation are in vivo distributed.In recent years, carried out the medicament screening for preventing and kill off of Mikania micrantha, the effective herbicide kind that has of summarizing the control Mikania micrantha has glyphosate, 2,4-D class, sulfometuron-methyl (70% Sulfometuron Methyl), gloomy Thailand (25% hexazinone) etc.Discover that glyphosate can only kill the Mikania micrantha acrial part, undesirable to the preventive effect of its root.Go out little clean (18%2, the 4-D microemulsion) Mikania micrantha is had fabulous preventive effect, at 311 g a.i.hm
-2Using dosage under the preventive effect of Mikania micrantha is reached more than 95%, but price is higher relatively.The sulfometuron-methyl pedo relict phase is long, can destroy ecological environment of soil, is prone to doing the deposits yields poisoning.Gloomy Thailand is that woods is used weed killer herbicide, can be in the forest land, ground such as wasteland or highway limit use, can not be in the field or limit, pool, irrigation canals and ditches limit large tracts of land promote the use of.So filtering out economical and effective and environmentally safe weed killer herbicide is the emphasis of chemical control Mikania micrantha.
Rationally being mixed of weed killer herbicide can enlarge grass spectrum extremely, improves herbicidal effect, increases the safety to crop, and the minimizing poisoning prolongs the weeding lasting period, reduces the medication number of times, reduces the dispenser cost.The weed killer herbicide key component that is mixed is the effect of confirming behind the herbicide mixture, and confirms best medication ratio and dosage.
Glyphosate is inner sucting conduction type, wide spectrum go out living type, noresidue herbicide after seedling; Absorption through leaf and stem; Conduct to each one of plant corpus, very effective to perennial and the annual and biennial grass family of dark root, sedge family and broad leaved weed, can not be used for soil treatment.Be mainly used in orchard, mulberry field, tea place, rubber plantation, cane field, vegetable garden, ridge etc., and weeding before the no-tillage field sowing such as rape.2; 4-D inhales the conduction hormone herbicide in the benzene oxycarboxylic acid selectivity, have than in strong and inhale conductivity, when low concentration, can suppress growth and development of plants; Cause occurring deformity; Even dead, cauline leaf is handled behind the seedling of being everlasting, and is mainly used in the weeds of gramineous crops such as preventing and kill off wheat, barley, corn, millet, Chinese sorghum.
Aspect the chemical control Mikania micrantha, Zhang Fudou etc. (number of patent application: 201010275608.7) and Huang Zhirong etc. 200910193070.2) etc. (number of patent application: more than ten patent all has and relates to, and filters out some effective herbicides compounds.But these herbicides compounds have stronger environment residual a bit, and some price is higher.
Application number is that 200910019581.2 one Chinese patent application discloses a kind of glyphosate 2, and 4-D water-soluble granular formulation (an open day 2010.4.7) includes following materials of weight proportions: glyphosate class herbicides compounds 30～70%; 2,4-D class herbicides compounds 10～50%; Auxiliary agent 5～15%; Filler 0～50%.Use as common weed killer herbicide.
Summary of the invention
The objective of the invention is to provides a kind of glyphosate class herbicides compounds and 2, mixed thing glyphosate/2 of 4-D class herbicides compounds, 4-D aqua to deficiencies such as granular herbicidal agent cost in the prior art are high, preparation technology is loaded down with trivial details, herbicidal effect is not remarkable.
Another object of the present invention provides above-mentioned glyphosate/2, the application of 4-D aqua aspect the control Mikania micrantha.
The present invention realizes above-mentioned purpose through following technical scheme:
A kind of glyphosate/2, the 4-D aqua is by 2,4-D class herbicides compounds, glyphosate class herbicides compounds, emulsifier, second alcohol and water are formed.
As a kind of preferred version, above-mentioned glyphosate/2 in the 4-D aqua, in the quality percentage composition, consist of 2,4-D class herbicides compounds 2.9～20%, glyphosate class herbicides compounds 9.7～27%, emulsifier 10%, and water 14%～17%, surplus are ethanol.More preferably scheme wherein is 2,4-D class herbicides compounds 3.4～10.2%, glyphosate class herbicides compounds 19.6～26.6%, emulsifier 10%, and water 14%～17%, surplus are ethanol.
As a kind of preferred version, above-mentioned glyphosate/2, said 2 in the 4-D aqua, 4-D class herbicides compounds is preferably 2,4-D sodium salt, 2,4-D ammonium salt, 2,4-D dimethylamine salt or 2,4-D isopropyl amine salt.
As a kind of preferred version, above-mentioned glyphosate/2, in the 4-D aqua, said glyphosate class herbicides compounds is preferably sodium glyphosate, glyphosate potassium, ammonium glyphosate or glyphosate isopropyl amine salt.
As a kind of preferred version; Above-mentioned glyphosate/2; In the 4-D aqua, emulsifier is preferably the compound of anion acid ester surfactant and nonionic fatty acid polyglycol fluoroacetic acid ether surface active agent, can directly buy the commercial goods; Like emulsifier GY-ZJ6, agricultural chemical Co., Ltd produces by Beijing Guang Yuan benefit.
Above-mentioned any one glyphosate/2, the application of 4-D aqua aspect the control Mikania micrantha.
Compared with prior art, the present invention has following beneficial effect:
(1) glyphosate of the present invention/2, the 4-D aqua has significant synergies, and safe, efficient, economic advantage.Simultaneously, aqua also belongs to environmentally friendly preparation, has that low poisoning, toxicity are little, an easily dilutable, characteristics such as safe in utilization and convenient, and has good biological effect.
(2) Mikania micrantha there is good preventive effect, at 2000 g a.i.hm
-2(a.i.hm
-2: the per hectare effective dose) can reach the thorough effect that prevents and treats Mikania micrantha more than the RD.
(3) the significant synergistic effect that has been mixed of glyphosate and 2,4-D class herbicides compounds, co-toxicity coefficient is more than 174.49, and synergy is obvious.
(4) compare with other weed killer herbicides of preventing and kill off Mikania micrantha, the consumption of medicament of the present invention is few, and cost is low.
Embodiment
A kind of glyphosate 2 that is used to prevent and treat Mikania micrantha of the present invention, the 4-D aqua is explained with following several specific embodiments, but protection scope of the present invention is not limited thereto.Each reagent percentage is the quality percentage composition among the embodiment, and except that doing specified otherwise, other are this area normal experiment reagent and method.
Embodiment 1
5.19% 2; The former medicine of 4-D; 3.2% dimethylamine agueous solution (the dimethylamine mass percentage concentration is 30% in the solution), 38.3% the glyphosate isopropyl amine salt aqueous solution (mass percentage concentration of glyphosate isopropyl amine salt is 62% in the aqueous solution), 10% emulsifier GY-ZJ6; Add ethanol and mend to 100%, wherein emulsifier GY-ZJ6 is that the agricultural chemical Co., Ltd of Beijing Guang Yuan benefit produces.2,4-D and dimethylamine elder generation salify (2,4-D diformazan ammonium salt) is reacted into and adds the glyphosate isopropyl amine salt aqueous solution again behind the clear solution, adds small amount of ethanol and mix, and adds emulsifier GY-ZJ6 at last, supplies 100% with ethanol.
Embodiment 2
8.6% 2; The former medicine of 4-D, 5.3% dimethylamine agueous solution (the dimethylamine mass percentage concentration is 30%), 31.7% the glyphosate isopropyl amine salt aqueous solution (mass percentage concentration of glyphosate isopropyl amine salt is 62% in the aqueous solution); 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.Mixed method is with embodiment 1.
Embodiment 3
12.8% 2; The former medicine of 4-D, 7.9% dimethylamine agueous solution (the dimethylamine mass percentage concentration is 30%), 23.6% the glyphosate isopropyl amine salt aqueous solution (mass percentage concentration of glyphosate isopropyl amine salt is 62%); 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.Mixed method is with embodiment 1.
Embodiment 4
2.9% 2; The former medicine of 4-D, 1.8% dimethylamine agueous solution (the dimethylamine mass percentage concentration is 30%), 42.8% the glyphosate isopropyl amine salt aqueous solution (mass percentage concentration of glyphosate isopropyl amine salt is 62%); 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.Mixed method is with embodiment 1.
Embodiment 5
17.12% 2; The former medicine of 4-D, 10.6% dimethylamine agueous solution (the dimethylamine mass percentage concentration is 30%), 15.7% the glyphosate isopropyl amine salt aqueous solution (mass percentage concentration of glyphosate isopropyl amine salt is 62%); 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.Mixed method is with embodiment 1.
Embodiment 6
10.88% 2, the former liquid medicine solution of 4-D sodium salt (2, the former medicine mass percentage concentration of 4-D sodium salt is 95%), 20.69% the sodium glyphosate aqueous solution (mass percentage concentration of sodium glyphosate is 95%), 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.
Embodiment 7
16.4% 2, the former liquid medicine solution of 4-D ammonium salt (2, the former medicine mass percentage concentration of 4-D ammonium salt is 95%), 15.39% ammonium glyphosate saline solution (mass percentage concentration of ammonium glyphosate is 95%), 10% emulsifier GY-ZJ6 adds ethanol and mends to 100%.
Embodiment 8
Present embodiment is glyphosate/2 of embodiment 1 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material:
Mikania micrantha (Mikania micrantha) is plucked in the Agricultural University Of South China campus, and the Mikania micrantha of peak of growing season is cut into little; Every little is left an internode; Be planted in the circular flowerpot of bore 8.5 cm, high 7.5 cm, one of every basin plantation keeps earth moistening.
The medicament preparation:
With the geometric ratio reduction dosage is set: single agent glyphosate isopropyl amine salt 153.75,307.5,615,1230,2460 g a.i.hm
-2Totally 5 processing; Single agent 2,4-D diformazan ammonium salt 80.5,161,322,644,1288 g a.i.hm
-2Totally 5 processing; Glyphosate/2,4-D aqua 181,362,724,1448,2896 g a.i.hm
-2Totally 5 processing.Other establishes the contrast that is treated to that does not contain medicament.
Test method:
Adopt the greenhouse pot culture method, the cauline leaf spraying that when Mikania micrantha grows to the 1m left and right sides, respectively is provided with under the dosage is handled.Sprayer unit is the 3WT-II type full-automatic spray tower of spraying, long-pending 0.097 m of spray powder
2, amount of liquid medicine 20mL.Other establishes blank, and each is handled 4 times and repeats.The overground part fresh weight of 28d weighing Mikania micrantha is tried to achieve the fresh weight inhibiting rate behind medicine.Adopt dosage logarithm-probability value straight-line method then, calculate the ED of overground part preventive effect
50Value is estimated two kinds of weed killer herbicide interaction relationships by Sun&Johnson method (the abundant co-toxicity coefficient method of Sun Yun).
According to survey data, calculate the overground part fresh weight inhibiting rate that each is handled by formula (1), unit is percentage (%).
In the formula:
RBe the fresh weight inhibiting rate;
X 0Be the control treatment fresh weight;
X 1Be the chemicals treatment fresh weight.
By formula co-toxicity coefficient is calculated in (2), (3), estimates the synergy type.
（2）
The ratio (%) of toxicity index * B in mixture of ratio (the %)+B of toxicity index * A of the theoretical toxicity index=A of mixture in mixture
Co-toxicity coefficient is a summation action during near 100 (between 80～120), and being significantly less than at 80 o'clock is antagonism, is synergistic effect during obviously greater than 100 (more than 120).
Test data adopts Excel and DPS6.5 software to analyze, and utilizes dose-response to return and carries out the preventive effect analysis, and test data is carried out statistical analysis.
Result of the test:
Result of the test is as shown in table 1:
Table 1 glyphosate 2, the 4-D aqua is to Mikania micrantha toxicity test result
| Medicament | Regression equation (y=) | Correlation coefficient (r) | ED 50(g a.i.·hm -2) | Co-toxicity coefficient |
| Glyphosate | y = 0.9909x + 1.9264 | 0.9793 | 1264.23 | / |
| 2,4-D | y = 1.0994x + 2.0966 | 0.9985 | 434.68 | / |
| Glyphosate/2, the 4-D aqua | y = 1.3146x + 1.5345 | 0.9517 | 432.68 | 209.65 |
Can know that by table the coefficient of spending together of the medicament of embodiment 1 gained is 209.65, obviously greater than 100 (more than 120), has significant synergies.
Embodiment 9
Present embodiment is the glyphosate 2 of embodiment 2 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8.
Result of the test
Result of the test is as shown in table 2:
Table 2 glyphosate 2, the 4-D aqua is to Mikania micrantha toxicity test result
| Medicament | Regression equation (y=) | Correlation coefficient (r) | ED 50(g a.i.·hm -2) | Co-toxicity coefficient |
| Glyphosate | y = 0.9909x + 1.9264 | 0.9793 | 1264.23 | / |
| 2,4-D | y = 1.0994x + 2.0966 | 0.9985 | 434.68 | / |
| Glyphosate/2, the 4-D aqua | y = 1.4528x + 1.2748 | 0.9815 | 366.57 | 210.10 |
Can know that by table the coefficient of spending together of the medicament of embodiment 1 gained is 210.10, obviously greater than 100 (more than 120), has significant synergies.
Embodiment 10
Present embodiment is the glyphosate 2 of embodiment 3 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8.
Result of the test:
Result of the test is as shown in table 3:
Table 3 glyphosate/2, the 4-D aqua is to Mikania micrantha toxicity test result
| Medicament | Regression equation (y=) | Correlation coefficient (r) | ED 50(g a.i.·hm -2) | Co-toxicity coefficient |
| Glyphosate | y = 0.9909x + 1.9264 | 0.9793 | 1264.23 | / |
| 2,4-D | y = 1.0994x + 2.0966 | 0.9985 | 434.68 | / |
| Glyphosate/2, the 4-D aqua | y = 1.4643x + 1.2425 | 0.9810 | 368.19 | 174.49 |
Can know that by table the coefficient of spending together of the medicament of embodiment 1 gained is 174.49, obviously greater than 100 (more than 120), has significant synergies.
Embodiment 11
Present embodiment is glyphosate/2 of embodiment 4 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8.
Result of the test
Result of the test is as shown in table 4:
Table 4 glyphosate/2, the 4-D aqua is to Mikania micrantha toxicity test result
| Medicament | Regression equation (y=) | Correlation coefficient (r) | ED 50(g a.i.·hm -2) | Co-toxicity coefficient |
| Glyphosate | y = 0.9909x + 1.9264 | 0.9793 | 1264.23 | / |
| 2,4-D | y = 1.0994x + 2.0966 | 0.9985 | 434.68 | / |
| Glyphosate/2, the 4-D aqua | y = 1.1198x + 2.1002 | 0.9996 | 388.66 | 266.80 |
Can know that by table the coefficient of spending together of the medicament of embodiment 1 gained is 266.80, obviously greater than 100 (more than 120), has significant synergies.
Embodiment 12
Present embodiment is glyphosate/2 of embodiment 5 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8.
Result of the test:
Result of the test is as shown in table 5:
Table 5 glyphosate/2, the 4-D aqua is to Mikania micrantha toxicity test result
| Medicament | Regression equation (y=) | Correlation coefficient (r) | ED 50(g a.i.·hm -2) | Co-toxicity coefficient |
| Glyphosate | y = 0.9909x + 1.9264 | 0.9793 | 1264.23 | / |
| 2,4-D | y = 1.0994x + 2.0966 | 0.9985 | 434.68 | / |
| Glyphosate/2, the 4-D aqua | y = 1.1877x + 2.0754 | 0.9998 | 290.01 | 190.02 |
Can know that by table the coefficient of spending together of the medicament of embodiment 1 gained is 190.02, obviously greater than 100 (more than 120), has significant synergies.
Embodiment 13
Present embodiment is glyphosate/2 of embodiment 4 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8, and result is similar with embodiment 9 result of the tests, has significant synergies.
Embodiment 14
Present embodiment is glyphosate/2 of embodiment 5 gained, and the test of giving birth to of 4-D aqua is tested and the result, and purpose is test glyphosate/2, the synergistic effect of 4-D aqua:
Test material, medicament configuration, test method are with embodiment 8, and result is similar with embodiment 10 result of the tests, has significant synergies.
Embodiment 15
Present embodiment is glyphosate/2 of embodiment 1 gained, and the quality testing test and the result of 4-D aqua, purpose are test glyphosate/2, the stability of 4-D aqua:
Result of the test:
Result of the test is as shown in table 6:
Table 6 glyphosate/2,4-D aqua quality testing result
| Test item | Testing result |
| Outward appearance | Colourless transparent liquid |
| Dilution stability (100 times) | Qualified (clear solution) |
| pH(1%) | 7.9 |
| Low-temperature stability | Qualified |
| Heat storage stability | Qualified |
Embodiment 16
Present embodiment is the glyphosate 2 of embodiment 2 gained, and the quality testing test and the result of 4-D aqua, purpose are test glyphosate/2, the stability of 4-D aqua:
Result of the test:
Result of the test is as shown in table 7:
Table 7 glyphosate/2,4-D aqua quality testing result
| Test item | Testing result |
| Outward appearance | Colourless transparent liquid |
| Dilution stability (100 times) | Qualified (clear solution) |
| pH(1%) | 8.2 |
| Low-temperature stability | Qualified |
| Heat storage stability | Qualified |
Embodiment 17
Present embodiment is the glyphosate 2 of embodiment 3 gained, and the quality testing test and the result of 4-D aqua, purpose are test glyphosate/2, the stability of 4-D aqua:
Result of the test:
Result of the test is as shown in table 8:
Table 8 glyphosate/2,4-D aqua quality testing result
| Test item | Testing result |
| Outward appearance | Colourless transparent liquid |
| Dilution stability (100 times) | Qualified (clear solution) |
| pH(1%) | 8.7 |
| Low-temperature stability | Qualified |
| Heat storage stability | Qualified |
Although preceding text to practical implementation method afford of the present invention detailed description explanation; But should be noted that; We can design according to the present invention carry out various equivalent modifications to above-mentioned implementation method; When the function that it produced does not exceed spiritual that specification contains yet, all within protection scope of the present invention.
Claims (6)
1. glyphosate/2, the 4-D aqua is characterized in that by 2,4-D class herbicides compounds, glyphosate class herbicides compounds, emulsification, water and ethanol are formed.
2. according to the said glyphosate of claim 1/2, the 4-D aqua is characterized in that consisting of 2 in the quality percentage composition, 4-D class herbicides compounds 2.9～20%, glyphosate class herbicides compounds 9.7～27%, emulsifier 10%, and water 14%～17%, surplus are ethanol.
3. according to the said glyphosate of claim 1/2, the 4-D aqua is characterized in that saidly 2, and 4-D class herbicides compounds is 2,4-D sodium salt, 2,4-D ammonium salt, 2,4-D dimethylamine salt or 2,4-D isopropyl amine salt.
4. according to the said glyphosate of claim 1/2, the 4-D aqua is characterized in that said glyphosate class herbicides compounds is sodium glyphosate, glyphosate potassium, ammonium glyphosate or glyphosate isopropyl amine salt.
5. according to the said glyphosate of claim 1/2, the 4-D aqua is characterized in that said emulsifier is the compound of anion acid ester surfactant and nonionic fatty acid polyglycol fluoroacetic acid ether surface active agent.
6. the arbitrary said glyphosate of claim 1～5/2, the application of 4-D aqua aspect the control Mikania micrantha.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107616187A (en) * | 2017-11-13 | 2018-01-23 | 江苏好收成韦恩农化股份有限公司 | A kind of Herbicidal combinations containing glyphosate |
| CN110250198A (en) * | 2019-06-19 | 2019-09-20 | 浙江金帆达生化股份有限公司 | A kind of glyphosate salt compounding 2-methyl-4-chloropheeffervescent or 2, aqua auxiliary agent of 4-D salt and preparation method thereof |
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|---|---|
| CN102771507B (en) | 2014-05-28 |
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