CN101379998A - Compound herbicide for efficiently preventing and curing paddy field weed and use thereof - Google Patents
Compound herbicide for efficiently preventing and curing paddy field weed and use thereof Download PDFInfo
- Publication number
- CN101379998A CN101379998A CNA2008101551913A CN200810155191A CN101379998A CN 101379998 A CN101379998 A CN 101379998A CN A2008101551913 A CNA2008101551913 A CN A2008101551913A CN 200810155191 A CN200810155191 A CN 200810155191A CN 101379998 A CN101379998 A CN 101379998A
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- paddy field
- penoxsuam
- complex weedicide
- quinolinic acid
- field weed
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Abstract
The invention discloses a compounded weedicide used for controlling weed of rice paddy field with high efficiency and the application thereof; the optimum period for using the compounded weedicide is from the period of paddy rice seedling with two leaves and one core to the period before heading stage of paddy rice and five leaves of cockspur grass, so that the compounded weedicide is safe, and has little influence on the environment. The compounded weedicide of the invention contains the active ingredients of Penoxsulam and quinclorac which have the weight mixture ratio of 1:1-1:50.
Description
Technical field
The present invention relates to a kind of weed killer herbicide and application thereof,, belong to technical field of pesticide more specifically to a kind of complex weedicide and application thereof that is used for the high-efficiency prevention and control paddy field weed.
Background technology
The barnyard grass grass is an annual weed, with seminal propagation, in the rice field, all there is distribution in farmland such as cotton field, corn field, is the important weeds in China farmland.Because its fertility is strong, low to a lot of herbicide sensitives, again because it often sprouts grass with sowing of crops such as paddy or Honda sowing, and flowering fruit bearing stage is consistent with the paddy rice fringe phase, and is synchronous with the growth of paddy rice, so awkward cutting weeds.Along with the reform of China's rice cropping system, the further expansion of water direct seeding, direct-sowing dry rice cropping area, crop smothering becomes the most serious problem, damaging range increases just year by year, the extent of injury increases the weight of just year by year, and serious field piece takes place can have no harvest, and particularly barnyard grass grass and moleplant seed are more outstanding.According to this production reality, need a kind of complex weedicide that can effectively administer paddy field weed of development in a hurry.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art and problem, a kind of complex weedicide that is used for the high-efficiency prevention and control paddy field weed is provided.
The present invention simultaneously also provides the application on control barnyard grass grass of this complex weedicide.
The present invention is achieved by the following technical solutions:
The complex weedicide that is used for the high-efficiency prevention and control paddy field weed of the present invention, its active ingredient that comprises is penoxsuam and dichloro quinolinic acid, wherein the weight proportion of penoxsuam and dichloro quinolinic acid is 1:1～1:50.
The complex weedicide that is used for the high-efficiency prevention and control paddy field weed of the present invention, the weight proportion that its further technical scheme is penoxsuam and dichloro quinolinic acid is 1:2.5～1:40.
When preparing the complex weedicide that is used for the high-efficiency prevention and control paddy field weed of the present invention, the carrier and the additive (as emulsifier, dispersant, stabilizing agent, bleeding agent) that can add convention amount mix, and make wetting powder, colloidal suspending agent, microemulsion, water dispersion granule or granule by common method.
The percentage by weight that is used for complex weedicide its each composition when making wetting powder of high-efficiency prevention and control paddy field weed of the present invention is: penoxsuam 1～20%, dichloro quinolinic acid 1～50%, pesticide wettable auxiliary agent 5～15%, surplus are kaolin; The percentage by weight that further again technical scheme is its each composition is: penoxsuam 1～16%, dichloro quinolinic acid 1～40%, pesticide wettable auxiliary agent 5～15%, surplus are kaolin.
The application of complex weedicide on control barnyard grass grass and Eclipta prostrata that is used for the high-efficiency prevention and control paddy field weed of the present invention.
The method of weed killer herbicide control direct seading rice field weed of the present invention is: behind rice shoot 2 leaves 1 heart, convert 450～600 kilograms of thick mists of spray of water according to the effective dose of 4～50 grams of complex weedicide total amount in the per hectare.
The method of weed killer herbicide of the present invention control control transplanting rice field weed is: behind rice transplanting 7～20 days, convert 450～600 kilograms of thick mists of spray of water or mix 450 kilograms～600 kilograms moistening fine earths and spread fertilizer over the fields according to the effective dose of 4～50 grams of complex weedicide in the per hectare.
The invention has the beneficial effects as follows:
The penoxsuam that the present invention utilizes is to belong to sulfonylurea herbicide, and medicine is by grass cutting blade, stem and root absorption, is transmitted to meristem zone through xylem and phloem and has an effect.Penoxsuam has cauline leaf concurrently and handles and the closed soil treatment effect, and weeds stop growing very soon after penoxsuam is handled, 2-4 days growing points fade after the medication, sometimes vein reddens, after the medication 7-14 days stem apexs and leaf bud begin withered downright bad, 2-4 week weeds death after the medication.The dead speed of weeds is relevant with the savings of branched-chain amino acid in the body.The branched-chain amino acid reserves are little in the immature weeds body, and are dead very fast; Plant and grass age bigger weeds dead slow, the adverse environment condition drug effect performance speed that can slow down.Active component in the penoxsuam is rapid at the paddy rice vivo degradation, 1 leaf phase was arrived gather in the crops preceding rice safety.The research data report is arranged, after planting carry out closed soil treatment, weeds are also had good preventive effect with the rice outstanding person in Direct-seeding Rice, and to rice safety.The dichloro quinolinic acid that the present invention utilizes is hormone-type quinoline carboxylic acid weed killer herbicide, can be absorbed by rudiment barnyard grass grass seed root and blade, can promote the biosynthesis of ethene effectively, cause the accumulation of a large amount of abscisic acids, cause that pore dwindles, water evaporates reduces, carbon dioxide absorption reduces, barnyard grass grass decreased growth.The present invention has utilized penoxsuam to the broad spectrum activity of paddy field weed with to the wholesomeness of barnyard grass grass, has remedied dichloro quinolinic acid and has killed the narrower defective of grass spectrum, has also increased the safety to paddy rice, overcomes the resistance of barnyard grass grass to dichloro quinolinic acid; Simultaneously, penoxsuam is to lasting periods of weeds is long but the drug effect onset is slower, and dichloro quinolinic acid then onset is very fast but the lasting period is shorter, with both composite uses, makes and the characteristic complementation of these two kinds of medicaments has reduced cost simultaneously.This invention medicament administration time is wide, product of the present invention use optimum period for use the paddy rice heading from rice seedling 2 leaves 1 heart before always, careless 5 leaves of barnyard grass are before the phase, to rice safety.
Embodiment
Embodiment
Complex weedicide of the present invention and as follows to the indoor measurement of barnyard grass grass and Eclipta prostrata activity:
The former medicinal acetone of penoxsuam and dichloro quinolinic acid is dissolved into 2000 μ g/ml mother liquors respectively, and adds 10% Tween-80 (making emulsifier and spreader uses).With the sample of penoxsuam and dichloroquinoline acid mother liquor preparation penoxsuam and dichloro quinolinic acid different proportion, penoxsuam in the sample: the ratio of dichloro quinolinic acid was respectively 1: 2.5,1: 5,1: 10,1: 20,1: 40 simultaneously.Spray-on process is to measure penoxsuam and dichloro quinolinic acid and composite sample thereof the activity to barnyard grass in paddy field after adopting seedling.To be sowed in the test basin alms bowl by 50 seeds of every alms bowl with the barnyard grass grass seed that clear water soaked 24 hours, barnyard grass grass 3 leaves fixed 40 strains of every alms bowl during the phase by the time, the medicament that dilution is good evenly is sprayed onto on the barnyard grass grass plant with laryngeal spray; To be sowed in the test basin alms bowl by 30 seeds of every alms bowl with the Eclipta prostrata seed that clear water soaked 24 hours simultaneously, by the time fixed 20 strains of every alms bowl during 2～4 true leaves of Eclipta prostrata, the medicament that dilution is good evenly is sprayed onto on the Eclipta prostrata plant with laryngeal spray, evenly thoughtfully is as the criterion to spray, and test repeats 4 times.
The strain number of with medicament processing and control treatment calculates the control efficiency of medicament:
Control efficiency %=[(control treatment strain number-chemicals treatment strain number)/control treatment strain number] * 100
The synergy that is mixed: adopt the Gowing method to estimate penoxsuam and the synergy type of dichloro quinolinic acid mixture and the reasonability of proportioning.
Theoretical preventive effect % (the E0)=X+Y of mixture-(X * Y/100)
In the formula: X---the weeds preventive effect of weed killer herbicide A consumption when P;
Y---the weeds preventive effect of weed killer herbicide B consumption when Q;
Actual preventive effect after mixture actual measurement preventive effect % (E)=weed killer herbicide A and weed killer herbicide B use with in proportion.
E-E0〉10% for synergistic effect; E-E0＜-10% is an antagonism; The E-E0 value is summation action between ± 10%.
Result of the test such as table 1 and table 2.
Table 1: penoxsuam and dichloro quinolinic acid and mixture thereof are to the careless effect of killing of barnyard grass grass
Table 2: penoxsuam and dichloro quinolinic acid and mixture thereof are to the careless effect of killing of Eclipta prostrata
Data show in table 1 and the table 2, and penoxsuam and dichloro quinolinic acid are mixed barnyard grass in paddy field and Eclipta prostrata are had synergistic effect; Penoxsuam and dichloro quinolinic acid be with 1: 2.5～1: 40 when being mixed, and the E-E0 value of barnyard grass grass and Eclipta prostrata all between ± 10%, is illustrated that this penoxsuam and dichloro quinolinic acid are mixed and have summation action.
Application Example 1: complex weedicide control direct sowing rice field weeds of the present invention and control efficiency
Table 3:40% penoxsuam dichloro quinolinic acid WP is to the control efficiency of water direct seeding weeds in paddy field
The spraying time of embodiment is that spraying time is June 10 in the table 3.Contain penoxsulam 4%, dichloro quinolinic acid 36%, wetting agent 10%, K12 (lauryl sodium sulfate) 2% among used 40% penoxsulam and the dichloro quinolinic acid WP, all the other are kaolin.Converting the water yield is the 450L/ hectare, the spray mist.Contrast numeral in the hurdle and be strain or gram/square metre, *: these data are the tiller number of barnyard grass grass.
Application Example 2: weed killer herbicide control transplanting rice weed of the present invention and control efficiency
The control efficiency of table 4 40% penoxsuam and dichloro quinolinic acid WP transplanting rice weed
The spraying time of embodiment is June 24 in the table 4.Contain penoxsulam 4%, dichloro quinolinic acid 36%, wetting agent 10%, K12 (lauryl sodium sulfate) 2% among used 40% penoxsulam and the dichloro quinolinic acid WP, all the other are kaolin.Converting the water yield is the 450L/ hectare, the spray mist.Contrast numeral in the hurdle and be strain or gram/square metre, *: these data are the tiller number of barnyard grass grass.
Claims (7)
1, a kind of complex weedicide that is used for the high-efficiency prevention and control paddy field weed is characterized in that: its active ingredient that comprises is penoxsuam and dichloro quinolinic acid, and wherein the weight proportion of penoxsuam and dichloro quinolinic acid is 1:1～1:50.
2, the complex weedicide that is used for the high-efficiency prevention and control paddy field weed according to claim 1, the weight proportion that it is characterized in that penoxsuam and dichloro quinolinic acid is 1:2.5～1:40.
3, the complex weedicide that is used for the high-efficiency prevention and control paddy field weed according to claim 1 and 2 is characterized in that: also contain the carrier and the additive of convention amount, described carrier and additive comprise emulsifier, dispersant, stabilizing agent, bleeding agent.
4, the complex weedicide that is used for the high-efficiency prevention and control paddy field weed according to claim 3, the formulation that it is characterized in that described complex weedicide is wetting powder, colloidal suspending agent, microemulsion, water dispersion granule or granule.
5, the complex weedicide that is used for the high-efficiency prevention and control paddy field weed according to claim 4, it is characterized in that described this composite wetting powder that kills weed killer herbicide, the percentage by weight of its each composition is: penoxsuam 1～20%, dichloro quinolinic acid 1～50%, pesticide wettable auxiliary agent 5～15%, surplus are kaolin.
6, the complex weedicide that is used for the high-efficiency prevention and control paddy field weed according to claim 5, it is characterized in that described this composite wetting powder that kills weed killer herbicide, the percentage by weight of its each composition is: penoxsuam 1～16%, dichloro quinolinic acid 1～40%, pesticide wettable auxiliary agent 5～15%, surplus are kaolin.
7, a kind of as the arbitrary described application of complex weedicide on control barnyard grass grass and Eclipta prostrata that is used for the high-efficiency prevention and control paddy field weed of claim 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101551913A CN101379998A (en) | 2008-10-16 | 2008-10-16 | Compound herbicide for efficiently preventing and curing paddy field weed and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101551913A CN101379998A (en) | 2008-10-16 | 2008-10-16 | Compound herbicide for efficiently preventing and curing paddy field weed and use thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101379998A true CN101379998A (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101551913A Pending CN101379998A (en) | 2008-10-16 | 2008-10-16 | Compound herbicide for efficiently preventing and curing paddy field weed and use thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822258A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Weeding composition |
| CN101861868A (en) * | 2010-06-22 | 2010-10-20 | 惠州市中迅化工有限公司 | Pesticide compound containing penoxsulam and quinclorac and application thereof |
| CN101926340A (en) * | 2010-09-13 | 2010-12-29 | 尹小根 | Herbicidal composition containing flumetsulam and quinclorac |
| CN105248436A (en) * | 2015-11-02 | 2016-01-20 | 安徽美兰农业发展股份有限公司 | Dispersible oil suspending agent of quinclorac, cyhalofop-butyl and penoxsulam composite herbicide and preparation method of dispersible oil suspending agent |
| CN105557713A (en) * | 2015-12-24 | 2016-05-11 | 安徽美兰农业发展股份有限公司 | Quinclorac and penoxsulam compound suspending agent and preparation method thereof |
| CN107494573A (en) * | 2017-08-07 | 2017-12-22 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of penoxsuam, dichloro quinolinic acid and pyrazosulfuron |
-
2008
- 2008-10-16 CN CNA2008101551913A patent/CN101379998A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822258A (en) * | 2010-05-18 | 2010-09-08 | 东莞市瑞德丰生物科技有限公司 | Weeding composition |
| CN101861868A (en) * | 2010-06-22 | 2010-10-20 | 惠州市中迅化工有限公司 | Pesticide compound containing penoxsulam and quinclorac and application thereof |
| CN101926340A (en) * | 2010-09-13 | 2010-12-29 | 尹小根 | Herbicidal composition containing flumetsulam and quinclorac |
| CN105248436A (en) * | 2015-11-02 | 2016-01-20 | 安徽美兰农业发展股份有限公司 | Dispersible oil suspending agent of quinclorac, cyhalofop-butyl and penoxsulam composite herbicide and preparation method of dispersible oil suspending agent |
| CN105557713A (en) * | 2015-12-24 | 2016-05-11 | 安徽美兰农业发展股份有限公司 | Quinclorac and penoxsulam compound suspending agent and preparation method thereof |
| CN107494573A (en) * | 2017-08-07 | 2017-12-22 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of penoxsuam, dichloro quinolinic acid and pyrazosulfuron |
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Application publication date: 20090311 |