CN102027924A - Herbicidal composition containing picloram and dicamba - Google Patents
Herbicidal composition containing picloram and dicamba Download PDFInfo
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- CN102027924A CN102027924A CN2009100362001A CN200910036200A CN102027924A CN 102027924 A CN102027924 A CN 102027924A CN 2009100362001 A CN2009100362001 A CN 2009100362001A CN 200910036200 A CN200910036200 A CN 200910036200A CN 102027924 A CN102027924 A CN 102027924A
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- dicamba
- picloram
- herbicidal combinations
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Abstract
The invention discloses a herbicidal composition containing picloram and dicamba, which is characterized in that the herbicidal composition takes picloram and dicamba as the main active ingredients, wherein the mass ratio of picloram to dicamba is (1-80):(1-80). Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the wheat and the aftercrops on the premise of improving the drug effect. The herbicidal composition can be used for preparing the herbicides for postemergence weed control in the wheat fields, especially the herbicides for controlling various broadleaf weeds in the wheat fields.
Description
Technical field
The invention belongs to technical field of pesticide, weed killer herbicide field especially relates to the binary built composition of a kind of picloram and dicamba.This Herbicidal combinations can be applicable to the wheat 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-2-carboxylic acid, its chemical formula is: C
6H
3Cl
3N
2O
2Structural formula is:
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 cornfield herbicidal, 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.
Dicamba (dicamba), a kind of benzoic acid herbicide, chemical name: 3,6-two chloro-O-Anisic Acids, its structural formula is:
Dicamba is a selectivity inner sucting conduction type herbicide after seedling, and annual and perennial broadleaf weed are had remarkable preventive effect.Safer to gramineous crops such as wheat, corns.Be used to prevent and kill off pig seedling grass, corn-bind, lamb's-quarters, ox chickweed, common vetch, descurainia sophia (l.) webb ex prantl, Siberian cocklebur, Bao Shuocao, field bindweed, meadow pine, carp intestines etc.Be used for spraying behind the seedling, can be very fast by the leaf of weeds, stem, root absorption, conduct up and down by phloem and xylem, focus mostly at meristematic tissue and the vigorous position of metabolic activity, hinder the normal activity of plant hormone, make its death.Ban use of before wheat three leaves and behind the jointing.Can carry out the metabolism decomposition after gramineous plants absorbs very soon and make it to lose efficacy, show stronger pesticide resistance, so safer to gramineous crops such as wheat, corns.But along with a large amount of uses of dicamba, a lot of weeds have produced resistance to it successively, have had a strong impact on the use of dicamba.
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 dicamba 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 dicamba.
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 dicamba, this Herbicidal combinations is main active ingredient with picloram and dicamba, the mass ratio of picloram and dicamba is 1～80: 1～80.The mass ratio of preferred picloram and dicamba is 1～40: 1～30, and most preferably the mass ratio of picloram and dicamba is 1～20: 1～20.Active ingredient of the present invention all is present in the composition with the synergy effective dose.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of picloram and dicamba is 1～85%, and the preferred mass percentage composition is 20～75%, and most preferably the quality percentage composition is 50～75%.
In the binary built preparation of picloram of the present invention and dicamba, except active ingredients such as picloram and dicamba, 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 aqua, wetting powder, soluble powder, water dispersion granule, soluble liquid etc.Use and spray after said composition can adopt known method to dilute.
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 in the wheat paddock postemergence weed control, particularly uses in the various broad leaved weeds to have remarkable result in preventing and kill off wheat paddock.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.Picloram and dicamba all are Herbicidal combinations behind the inner sucting conduction type bud, that is to say, Herbicidal combinations of the present invention can kill weeds by the conduction of plant leaf and root, can greatly improve the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide.Picloram and dicamba are all mainly prevented and kill off broad leaved weed, and after both mixed, herbicidal spectrum was wideer.
3, delay the weeds resistance.Because weeds easily produce resistance to dicamba, and contain picloram in the Herbicidal combinations of the present invention, make medicament can prevent effectively weeds except anti-dicamba in addition, having reduced the pesticide resistance of weeds, prolonged the service life of medicament.
4, 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 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 broad leaved weed in the wheat paddock is prevented and kill off in preparation.
Embodiment
Embodiment 1
Picloram 5%, dicamba 15%, NP-10 phosphate 4%, polyoxyethylene polyoxypropylene be embedding thing 5% altogether, alkyl phenol formaldehyde resin polyoxyethylene ether 2%, water complements to 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 20% aqua.
Embodiment 2
Picloram 60%, dicamba 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 8%, alkylphenol polyoxyethylene 7%, sodium lignin sulfonate supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 70% soluble powder.
Embodiment 3
Picloram 15%, dicamba 60%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, ammonium sulfate 5%, polyvinyl alcohol 2%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Picloram 60%, dicamba 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 70% wetting powder.
Embodiment 5
Picloram 24%, dicamba 1%, alkylphenol polyoxyethylene 6%, dodecyl sodium sulfate 5%, DMF to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 25% wettable liquor.
Embodiment 6
Picloram 1%, dicamba 59%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, kaolin to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 60% wetting powder.
Embodiment 7
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:
48% dicamba aqua (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:
Conical silene herb,, broad leaved weed such as salsola collina, corn gromwell, field bindweed.
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 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 dicamba is characterized in that this Herbicidal combinations is main active ingredient with picloram and dicamba, and wherein, the mass ratio of picloram and dicamba is 1～80: 1～80.
2. the Herbicidal combinations that contains picloram and dicamba according to claim 1 is characterized in that the mass ratio of picloram and dicamba is 1～40: 1～30 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 dicamba 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 dicamba 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 dicamba.
6. according to the Herbicidal combinations described in the claim 5, it is characterized in that described formulation is aqua, wetting powder, soluble powder, water dispersion granule or soluble liquid.
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 application in the weed killer herbicide of the various broad leaved weeds of wheat paddock in preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036200 CN102027924B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing picloram and dicamba |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036200 CN102027924B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing picloram and dicamba |
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|---|---|
| CN102027924A true CN102027924A (en) | 2011-04-27 |
| CN102027924B CN102027924B (en) | 2013-01-23 |
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| CN 200910036200 Active CN102027924B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing picloram and dicamba |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621114A (en) * | 2013-11-15 | 2015-05-20 | 南京华洲药业有限公司 | Mixed herbicide containing aminopyralid and dicamba |
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 200910036200 patent/CN102027924B/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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621114A (en) * | 2013-11-15 | 2015-05-20 | 南京华洲药业有限公司 | Mixed herbicide containing aminopyralid and dicamba |
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| CN102027924B (en) | 2013-01-23 |
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