CN102027960A - Herbicidal composition containing picloram and isoproturon and application thereof - Google Patents
Herbicidal composition containing picloram and isoproturon and application thereof Download PDFInfo
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- CN102027960A CN102027960A CN2009100361973A CN200910036197A CN102027960A CN 102027960 A CN102027960 A CN 102027960A CN 2009100361973 A CN2009100361973 A CN 2009100361973A CN 200910036197 A CN200910036197 A CN 200910036197A CN 102027960 A CN102027960 A CN 102027960A
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- isoproturon
- picloram
- herbicidal combinations
- herbicidal composition
- herbicidal
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Abstract
The invention discloses a herbicidal composition containing picloram and isoproturon and application thereof. The herbicidal composition takes picloram and isoproturon as main active ingredients, wherein the mass ratio of the picloram to the isoproturon is 1-50:1-50. The herbicidal composition can be used for preparing a herbicide for controlling post-emergence weeds in wheat fields. Compared with a single-component herbicide, the herbicidal composition delays weed resistance, has a broad herbicidal spectrum and acts for a long time on the premise of enhancing herbicide effect, is safe for wheat and succeeding crops and has a remarkable effect when particularly used for controlling gramineous and broad-leaf weeds in wheat fields.
Description
Technical field
The invention belongs to technical field of pesticide, especially the weed killer herbicide field relates to the binary built agent of a kind of isoproturon and picloram.This Herbicidal combinations composition can be applicable to wheat, corn postemergence weed control.
Background technology
Wheat is the staple food crop of China, it is reported that annual national wheat all has crop smothering in various degree, if not weeding of field can make its underproduction more than 50%.In order to reduce the economic loss that crop smothering causes, reduce labor intensity, also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
In recent years, along with increasing and the extensive popularization of chemical control technology in agricultural production of weed killer herbicide kind, chemical weed control has been widely used in each period of wheat growth.Because the different regions climate characteristic is different with planting habit, its sowing and the time of cultivating there are differences, but basic chemical weed control mode is identical, and what need consideration mainly is factors such as temperature, soil property, kind and farming custom.The choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, cultivate cost but also can reduce, reach the purpose of volume increase.
Picloram (picloram), chemical name: 4-amino-3,5,6-trichloropyridine carboxylic acid, its chemical formula is: C
6H
3Cl
3N
2O
2
Picloram is a kind of interior suction, selective herbicide, has plant growth regulation.Mainly act on metabolism of nucleic acid, and make chloroplast structure and other organelle developmental deformities, interferencing protein is synthetic, acts on meristematic tissue activity etc., causes plant death at last.Be mainly used in wheatland, cornfield weeding, harmful to most of broad leaf crops.But picloram is invalid to grassy weed, and, during crop rotation, consider of the influence of residual picloram to broad leaf crop (beans, vegetables, cotton, tobacco etc.), therefore, be subjected to certain limitation in the use.
Isoproturon (isoproturon), a kind of substituted urea class selective herbicide, chemical name: 3-(4-isopropyl phenyl)-1, the 1-dimethyl urea, its chemical formula is: C
12H
18N
2O.
Isoproturon is the inhibitor that the photosynthesis electronics transmits, belong to substituted urea class selectivity seedling before, herbicide after seedling, also have systemic activity.Medicament mainly absorbs through weeds root and cauline leaf, upwards is transmitted to leaf with moisture in conduit, and many distributions blade tip and leaf margin play a role in green cell, disturb photosynthetic carrying out.Be used for barley, wheat, cotton, peanut, corn, paddy rice, legume crop Tanaka and prevent and kill off annual weed, as: amur foxtail, lady's-grass, wild oat, lamb's-quarters, annual bluegrass etc.But the isoproturon herbicidal spectrum is narrower, and is relatively poor to part broad leaved weed preventive effect, therefore, generally do not use separately, but and other herbicide mixtures.
The wheat paddock weed killer herbicide is limit by crop safety at present, it is also limited to kill the grass spectrum, be used alone the agent of weed killer herbicide list and can not control the generation of wheat paddock weeds completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily this season crop or succession crop of dispenser.Therefore, the present invention selects to kill grass spectrum difference, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the picloram of pluses and minuses complementation and isoproturon uses, so both enlarged and killed the grass spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations that contains picloram and isoproturon.
Another object of the present invention provides this Herbicidal combinations is used for the weed killer herbicide of wheat paddock weeding in preparation application.
A kind of Herbicidal combinations that contains picloram and isoproturon is characterized in that this Herbicidal combinations is main active ingredient with picloram and isoproturon, and wherein, the mass ratio of picloram and isoproturon is 1～50: 1～50.The mass ratio of preferred picloram and isoproturon is 1～30: 1～40.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of picloram and isoproturon is 1～85%, and the preferred mass percentage composition is 20～75%.Active ingredient of the present invention all is present in the composition with the synergy effective dose.
In the binary built preparation of picloram of the present invention and isoproturon, except active ingredients such as picloram and isoproturon, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations and be mixed with any one formulation that allows on the agricultural chemicals.Preferably be processed into wetting powder, soluble powder, missible oil, suspending agent, water dispersion granule.Can adopt when using and conventional method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc. for use, and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can singly be used or mixing and usefulness, also can add other auxiliary material that allows on the pesticidal preparations.
" % " of the present invention is weight percentage.
Herbicidal combinations of the present invention can be used for the wheat paddock postemergence weed control, particularly uses in various grass family and the broad leaved weed to have remarkable result in preventing and kill off wheat paddock.
Herbicidal composition of the present invention has the following advantages:
1, activity of weeding height.Picloram is interior suction selective herbicide, and isoproturon is light and effect electron transfer inhibitor, that is to say that herbicidal composition of the present invention can kill weeds by two kinds of different modes, can greatly improve the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide.Picloram is mainly prevented and kill off broad leaved weed, and isoproturon is mainly prevented and kill off grassy weed and part broad leaved weed.Both can either prevent and kill off living broad leaved weed after mixing, and can prevent and kill off grassy weed again, and herbicidal spectrum is wideer.
3, safe.Because the use content of various active ingredients has reduced, and makes medicament under the prerequisite that has improved drug effect, its safety to wheat, corn and succession crop also is improved.
Therefore, Herbicidal combinations of the present invention can be used in the weed killer herbicide of preparation wheat paddock postemergence weed control, particularly uses in the weed killer herbicide of grass family and broad leaved weed in the wheat paddock is prevented and kill off in preparation.
Embodiment
Embodiment 1
Isoproturon 9g, picloram 12g, alkylphenol polyoxyethylene 14g, phenethyl phenol polyethenoxy ether 15g, dimethylbenzene be to 100g, and being mixed with the quality percentage composition according to the formulation method of routine is 21% missible oil.
Embodiment 2
Isoproturon 14g, picloram 16g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, silicone oil 0.2g, surplus is a water, above raw material is prepared the method for suspending agent routinely, and being mixed with the quality percentage composition according to the formulation method of routine is 30% suspending agent.
Embodiment 3
Isoproturon 60g, picloram 15g, lauryl sodium sulfate 5 gram, ammonium sulfate 3g, polyvinyl alcohol 2g, kaolin 30g, the method that above raw material is pressed water dispersion granule, being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Isoproturon 5g, picloram 60g, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6g, wooden sodium iodate 5g, kaolin be to 100g, and being mixed with the quality percentage composition according to the formulation method of routine is 65% wetting powder.
Embodiment 5
Isoproturon 19g, picloram 1g, methyl naphthalene sulfonate formaldehyde condensate 6g, polyoxyethylene nonylphenol ether 3g, aluminium-magnesium silicate 0.5g, ethylene glycol 7g, tributyl phosphate 2g, silicone oil 0.2g, surplus is a water, above raw material is prepared the method for suspending agent routinely, and being mixed with the quality percentage composition according to the formulation method of routine is 20% suspending agent.
Embodiment 6
Isoproturon 1g, picloram 39g, neopelex 10g, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6g, sodium lignin sulfonate be to 100g, and being mixed with the quality percentage composition according to the formulation method of routine is 40% soluble powder.
Embodiment 7
Isoproturon 3g, picloram 3g, neopelex 16g, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 17g, sodium lignin sulfonate be to 100g, and being mixed with the quality percentage composition according to the formulation method of routine is 6% soluble powder.
Embodiment 8
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient farmland common weed lamb's-quarters.
Test method: the seed of quantitative lamb's-quarters is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat that lamb's-quarters 3～6 leaves during the phase, do the processing of spraying on the composition spray in crawler type.Handle continuation cultivation in the greenhouse, back, routine observation is respectively handled the preventive effect to weeds, and the weeds fresh weight behind the 30d after each processing of weighing is pressed the abundant method of Sun Yun (nineteen sixty proposition), calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Measurement result is as shown in table 1.
The indoor active determination test result of table 1
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite illustrates that all greater than 100 the present invention has obvious synergistic effect.
2, field control effectiveness test.
Reagent agent:
4 kinds of binary built Herbicidal combinations among the embodiment 1～4.
The contrast medicament:
50% isoproturon wetting powder (commercially available), 24% picloram aqua (commercially available).
For studying thing: wheat
Wheat seedling was 3～5 leaf phases, grew fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Weeds such as lady's-grass, green foxtail, three-coloured amaranth, lamb's-quarters.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the Fan spray head of weed killer herbicide special use for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments (consumption be every mu the consumption of active ingredient).In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop be had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine)
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
As can be seen, the present invention has significant preventive effect to grass family and broad leaved weed from table 2 and table 3, and synergy is remarkable, and the lasting period is long.
Table 4 medicament is to the security survey result of crop
Each wheat seedling of handling in the sub-district grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of wheat.
Claims (8)
1. a Herbicidal combinations that contains picloram and isoproturon is characterized in that this Herbicidal combinations is main active ingredient with picloram and isoproturon, and wherein, the mass ratio of picloram and isoproturon is 1～50: 1～50.
2. the Herbicidal combinations that contains picloram and isoproturon according to claim 1 is characterized in that the mass ratio of picloram and isoproturon is 1～30: 1～40 in this Herbicidal combinations.
3. according to the Herbicidal combinations described in the claim 1～2, it is characterized in that the two quality percentage composition in Herbicidal combinations of picloram and isoproturon is 1～85%.
4. according to the Herbicidal combinations described in the claim 3, it is characterized in that the two quality percentage composition in Herbicidal combinations of picloram and isoproturon is 20～75%.
5. according to the Herbicidal combinations described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with picloram and isoproturon.
6. according to the Herbicidal combinations described in the claim 5, it is characterized in that described formulation is wetting powder, soluble powder, missible oil, suspending agent or water dispersion granule.
7. the described Herbicidal combinations of claim 1 is used for the application of the weed killer herbicide of wheat paddock postemergence weed control in preparation.
8. application according to claim 7 is characterized in that described Herbicidal combinations is used for preventing and kill off herbicide applications in wheat paddock grass family and the broad leaved weed in preparation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036197 CN102027960B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing picloram and isoproturon and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036197 CN102027960B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing picloram and isoproturon and application thereof |
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|---|---|
| CN102027960A true CN102027960A (en) | 2011-04-27 |
| CN102027960B CN102027960B (en) | 2013-01-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| CN1589101A (en) * | 2001-09-21 | 2005-03-02 | 拜尔农作物科学股份公司 | Herbicides containing substituted thien-3-yl-sulfonylamino(thio)carbonyl-triazolin(thi)one compound |
| CN1960634A (en) * | 2004-03-10 | 2007-05-09 | 孟山都技术公司 | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
-
2009
- 2009-09-28 CN CN 200910036197 patent/CN102027960B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487789A (en) * | 1999-11-17 | 2004-04-07 | Selective herbicides based upon 2,6-disubstituted pyridine derivatives | |
| CN1589101A (en) * | 2001-09-21 | 2005-03-02 | 拜尔农作物科学股份公司 | Herbicides containing substituted thien-3-yl-sulfonylamino(thio)carbonyl-triazolin(thi)one compound |
| CN1960634A (en) * | 2004-03-10 | 2007-05-09 | 孟山都技术公司 | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
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| CN102027960B (en) | 2013-01-23 |
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