CN105145552B - Production method and application of herbicide drift control assistant - Google Patents
Production method and application of herbicide drift control assistant Download PDFInfo
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- CN105145552B CN105145552B CN201510676590.4A CN201510676590A CN105145552B CN 105145552 B CN105145552 B CN 105145552B CN 201510676590 A CN201510676590 A CN 201510676590A CN 105145552 B CN105145552 B CN 105145552B
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Abstract
The invention provides a production method and application of a herbicide drift control assistant, belonging to the field of pesticides. According to the invention, the fog drop drift of a herbicide is controlled by increasing the solution viscosity and specific gravity to change the characteristics of a pesticide solution during spraying, thereby relieving the hazards to sensitive crops in other adjacent plots caused by herbicide drift and also ensuring the control effect of the herbicide to weeds. The production method provided by the invention comprises the following steps: (1) uniformly mixing polyacrylamide, sodium dodecyl benzene sulfonate and inert auxiliary substances; (2) putting the mixture into a ball mill for milling and sieving; and (3) controlling the temperature of deionized water at 25-30 DEG C, and adding the mixture treated in the step (2) at a flow rate of 2-5kg/s while stirring. The application of the herbicide drift control assistant is as follows: 4.5-8.5kg of the herbicide drift control assistant is used for per hectare of weed, and 300kg of water is uniformly mixed with the herbicide for spraying. According to the invention, the fog drop drift of a herbicide is controlled by increasing the solution viscosity and specific gravity to change the characteristics of a pesticide solution during spraying, thereby relieving the hazards to sensitive crops in other adjacent plots caused by herbicide drift.
Description
Technical field
The invention belongs to pesticide field；Specifically related to a kind of herbicide drift control assistant production method and application.
Background technology
Herbicide is for preventing and treating the preparation for endangering injurious weed in agriculture and forestry plant growth course.The side of application one of herbicide
Face can prevent and treat Weed infestation, the yield of increase crops in agricultural production, on the other hand due in herbicide applications
Some adverse environment conditions and the characteristics of medicament itself, often result in droplet during herbicide is sprayed drift to the wind it is neighbouring
Sensitive crop field and cause the generation to sensitive crop poisoning phenomenon.The current research both at home and abroad to herbicide drift is mainly concentrated
At five aspects：(1) influence factor of herbicide drift is produced；(2) herbicide drift causes sensitive crop poisoning and its sensitivity
The measure of crop physiology reaction；(3) model for being used for predicting herbicide drift is set up；(4) removed using remote sensing technology monitoring
The generation of careless agent drift poisoning and the extent of injury；(5) technical measures of drift are reduced, shower nozzle, the auxiliary of pesticide drift is such as reduced
Air-stream spraying technology and electrostatic Spraying technique.Poisoning of the herbicide drift to neighbouring sensitive crop has become in the range of our times
Generally existing and practical problem urgently to be resolved hurrily during pesticides application.It is reported that, only 2008 in Mississippi, America just
Oryza sativa L., 18% Semen Tritici aestivi, 9% Semen sojae atricolor and 5% Cotton Gossypii for having 38% is subjected to the sweet phosphine float of mist droplet harm of careless herbicide.Although drift
Pesticide droplet be sublethal dose, but can grievous injury adjacent to plot normal growth sensitive crop, it is quick so as to cause
The Severe Reduction of sense crop.The pesticide used in a large number in production, such as 2,4-D butyl esters, Mediben, trefanocide, clomazones and standing grain
Careless top grade, can, wind-force too little because of droplet be too big, the reason such as position of the shower nozzle apart from ground causes mist during spray
The drift of drop, causes the serious harm to closely sensitive crop.Float of mist droplet during agricultural production Pesticides are sprayed is received
Various factors affects, such as wind speed, temperature, humidity environmental factorss, the dosage form of pesticide, the nozzle of spraying apparatus and its generation droplet
Size, wherein the wind speed during Pesticide use and spraying apparatus nozzle spray droplet volume size be affect pesticide float
The principal element of shifting.In agricultural production, because the generation of disease, worm, crop smothering often has ageing, and wind speed is uncontrollable
The natural cause of system, therefore, the nozzle of apparatus of spraying spray the size of droplet become affect one of pesticide drift it is mostly important
Controllable parameter.Bode L.E. et al. researchs show：What is caused the serious drift of pesticide and produce poisoning is all less than 150 μm
Little droplet.Little droplet has effect unique in the prevention and control of plant diseases, pest control, and its adhesion property very well, covers uniform, but is easy to float
Move, big droplet, such as fogdrop diameter are more than 200 μm, although be less prone to drift in, but in the tack meeting on harmful organism surface
Become poor, do not reach the preferable prevention effect to harmful organism.Therefore, by the method for droplet size in increase spray process,
From being worthless for the prevention effect angle of harmful organism.Using suitable spray adjuvantses, agriculture during by changing spraying
Drug solns characteristic then can both ensure prevention effect of the herbicide to weeds realizing controlling the drift of little droplet herbicide, again may be used
Mitigate and the harm of plot sensitive crop is closed on to other because what herbicide drift was caused, so that the application of herbicide is more pacified
Entirely, effectively.As in recent years Chinese herbicide, using the gradually increase of total consumption, added the Agent spraying machine of Chinese herbicide and removed
Falling behind relatively for careless agent formulation technology level, herbicide drift is solved to sensitive crop using the agent of herbicide drift control
Drug injury problem become pressing issues in agricultural production, the agent of herbicide drift control also will be in China and world wide
With wide using value.
The content of the invention
It is an object of the present invention to provide a kind of agent of herbicide damage biologic detoxication and its production method and application.The present invention passes through
Increase when solution viscosity and proportion change spraying the pesticide solution characteristic to realize controlling the float of mist droplet of herbicide, mitigate herbicide
What drift was caused closes on the harm of plot sensitive crop to other, while ensureing prevention effect of the herbicide to weeds.
Herbicide drift control assistant production method is carried out in the steps below in the present invention：
Step one, by 370～400kg polyacrylamides, 200～220kg dodecylbenzene sodium sulfonate and 430～450kg
Inertia auxiliary substance mix homogeneously；
Step 2 and then the mixture for obtaining step one are placed in grinding in ball grinder, cross 500 mesh sieves；
Step 3, by 700kg deionized waters temperature control at 25～30 DEG C, then while stirring with 2～5kg/ second flow velocitys
Mixture 300kg after adding step 2 to process, obtains herbicide drift control assistant.
Inertia auxiliary substance described in step one is kieselguhr, and its effect is the volume for expanding product, is easy to enter aborning
Row application.
Above-mentioned herbicide drift control assistant application is per hectare herbicide 4.5～8.5kg of drift control assistant, is watered
300kg sprays after uniformly mixing with herbicide.
The dodecylbenzene sodium sulfonate that the present invention is used can increase the dissolubility of polyacrylamide；And also increase herbicide
Tack of the droplet in blade surface after spraying；The weight for increasing droplet in addition reduces droplet drift distance.
The present invention realizes controlling herbicide by the pesticide solution characteristic when increase solution viscosity and proportion change spraying
Float of mist droplet, mitigate that herbicide drift causes closes on the harm of plot sensitive crop to other.
Specific embodiment
Specific embodiment one：A kind of herbicide drift control assistant production method is in the steps below in present embodiment
Carry out
Step 1：The cold-water-soluble polyacrylamide of 370kg/ tons, 200kg/ tons dodecylbenzene sodium sulfonate and 430kg/
The inertia auxiliary substance of ton uniformly mixes.
Step 2：The mixture that step 1 is obtained is in grinding in ball grinder, and mix homogeneously again, and it is 500 mesh to cross fineness
Sieve.
The purpose of grinding is to improve fineness of the particles, increases dispersion in aqueous.The purpose sieved is bulky grain
Filter, it is ensured that the homogeneity of fineness.
Step 3：700kg/ ton deionized water temperature controls are added in reactor at 25～30 DEG C, then with 2kg/ second flow velocitys
The stand-by mixture 300kg/ tons for adding step 2 to prepare in reactor, side edged high-speed stirred is made 300g/L herbicides and is floatd
Move control auxiliary agent.
Test one：
Table 1 is visible：Droplet drift distance is maximum when polyacrylamide 300kg/ tons solution is sprayed, can cause herbicide to compared with
The murder by poisoning of distant place sensitive crop.When polyacrylamide 370kg/ tons, 400kg/ tons and 450kg/ tons solution are sprayed droplet drift away from
From less, and without significant difference between three, it is considered to which production cost is most preferably to match somebody with somebody with the ratio of polyacrylamide 370～400kg/ tons
Than.Although the polyvinyl alcohol of different proportion also has control action, weeding after polyvinyl alcohol application to herbicide drift distance
Agent drift distance is substantially remote than polyacrylamide, causes big to the hazard area of sensitive crop after herbicide drift.Therefore, removing
Polyacrylamide is applied to be optimum formula in careless agent drift control assistant production.
Impact of the polyacrylamide of the different proportion of table 1 to droplet drift distance
Note：As a result it is the measurement result under wind speed 4m/s, lower case represents the significance of difference under 5% level.
Test two：
The as shown by data of table 2：Dodecylbenzene sodium sulfonate can dramatically increase the dissolubility of polyacrylamide, wherein 425kg/
Polyacrylamide dissolubility difference is not notable under ton, three consumptions of 450kg/ tons and 475kg/ tons.Additionally, DBSA
Sodium can dramatically increase droplet weight, and droplet weight is without notable wherein under 200kg/ tons, three consumptions of 220kg/ tons and 240kg/ tons
Difference.Therefore, effect and production cost are considered in production, is optimal with dodecylbenzene sodium sulfonate 200～220kg/ tons
Addition.
Impact of the different proportion dodecylbenzene sodium sulfonate of table 2 to polyacrylamide dissolubility and droplet weight
Test three：
Per hectare application herbicide drift control assistant 4.5-8.5kg, is watered after 300kg uniformly mixes with herbicide and sprays
Mist.Under the conditions of wind speed is 4m/s, to controlling glyphosate He clomazone floats to corn field serves highly significant control effect
Really.
Be not added with the process of herbicide drift control assistant, glyphosate He clomazone drift distance respectively reach 16m and
24m, plus the process of herbicide drift control assistant, glyphosate He clomazone drift distance only 8m, and significantly improve
State preventive effect of two kinds of herbicides to weeds.The process of glyphosate He clomazone addition herbicide drift control assistant, away from
Poisoning at the 8m of dispenser center is only 15% and 20%, and the poisoning compared with being not added with herbicide drift control assistant and processing is significantly reduced
(being shown in Table 3).Prove that herbicide drift control assistant is used in mixed way in herbicide sprays with herbicide, can be with effective control weeding
The drift of agent, herbicide drift is reduced to closing on the harm of plot sensitive crop Semen Maydiss, while herbicide can also be effectively improved
Prevention effect to weeds.
The application effect of the herbicide drift control agent of table 3
Note：The significance of difference under the level of lowercase letter 5%.
Claims (5)
1. a kind of herbicide drift control assistant production method, it is characterised in that herbicide drift control assistant production method be by
What following step was carried out：
Step one, by 370～400kg polyacrylamides, 200～220kg dodecylbenzene sodium sulfonate and 430～450kg inertia
Auxiliary substance mix homogeneously；
Step 2 and then the mixture for obtaining step one are placed in grinding in ball grinder, cross 500 mesh sieves；
Step 3, by 700kg deionized waters temperature control at 25 ~ 30 DEG C, then while stirring with 2～5kg/ seconds flow velocity add walk
Mixture 300kg after rapid two process, obtains herbicide drift control assistant.
2. a kind of herbicide drift control assistant production method according to claim 1, it is characterised in that lazy described in step one
Property auxiliary substance be kieselguhr.
3. a kind of herbicide drift control assistant production method according to claim 1, it is characterised in that stir in step 3
Speed is 120 revolutions per seconds.
4. a kind of herbicide drift control assistant production method according to claim 1, it is characterised in that flow velocity in step 3
For the 2kg/ seconds.
5. as claimed in claim 1 a kind of herbicide drift control assistant of herbicide drift control assistant production method production should
With being per hectare herbicide 4.5 ~ 8.5kg of drift control assistant, it is watered after 300kg uniformly mixes with herbicide and sprays.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510676590.4A CN105145552B (en) | 2015-10-13 | 2015-10-13 | Production method and application of herbicide drift control assistant |
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| CN201510676590.4A CN105145552B (en) | 2015-10-13 | 2015-10-13 | Production method and application of herbicide drift control assistant |
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| CN105145552A CN105145552A (en) | 2015-12-16 |
| CN105145552B true CN105145552B (en) | 2017-05-03 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371662A (en) * | 2008-10-21 | 2009-02-25 | 上海工程技术大学 | Atrazine herbicidal composition containing pesticide builder |
| CN103141474A (en) * | 2013-03-25 | 2013-06-12 | 东北农业大学 | Drift control assistant of pesticide |
| CN103717078A (en) * | 2010-12-10 | 2014-04-09 | 阿克佐诺贝尔化学国际公司 | Viscoelastic surfactant as drift control agent in pesticide formulations |
| US20150045224A1 (en) * | 2011-06-23 | 2015-02-12 | AgQuam LLC | Drift Reduction Compositions for Agricultural Use |
| WO2015018870A1 (en) * | 2013-08-09 | 2015-02-12 | Lamberti Spa | Agrochemical formulations with improved drift control |
| CN104684386A (en) * | 2012-09-11 | 2015-06-03 | 维泰尔澳大利亚有限公司 | Effervescent tablet for spray drift reduction and method of use |
| CN104996418A (en) * | 2015-07-10 | 2015-10-28 | 广州方中化工有限公司 | Synergist in water-based pesticide and preparation method for synergist |
-
2015
- 2015-10-13 CN CN201510676590.4A patent/CN105145552B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371662A (en) * | 2008-10-21 | 2009-02-25 | 上海工程技术大学 | Atrazine herbicidal composition containing pesticide builder |
| CN103717078A (en) * | 2010-12-10 | 2014-04-09 | 阿克佐诺贝尔化学国际公司 | Viscoelastic surfactant as drift control agent in pesticide formulations |
| US20150045224A1 (en) * | 2011-06-23 | 2015-02-12 | AgQuam LLC | Drift Reduction Compositions for Agricultural Use |
| CN104684386A (en) * | 2012-09-11 | 2015-06-03 | 维泰尔澳大利亚有限公司 | Effervescent tablet for spray drift reduction and method of use |
| CN103141474A (en) * | 2013-03-25 | 2013-06-12 | 东北农业大学 | Drift control assistant of pesticide |
| WO2015018870A1 (en) * | 2013-08-09 | 2015-02-12 | Lamberti Spa | Agrochemical formulations with improved drift control |
| CN104996418A (en) * | 2015-07-10 | 2015-10-28 | 广州方中化工有限公司 | Synergist in water-based pesticide and preparation method for synergist |
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| CN105145552A (en) | 2015-12-16 |
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Granted publication date: 20170503 Termination date: 20201013 |