CN102027910B - Herbicidal composition containing diflufenican and dicamba and application thereof - Google Patents
Herbicidal composition containing diflufenican and dicamba and application thereof Download PDFInfo
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- CN102027910B CN102027910B CN 200910036123 CN200910036123A CN102027910B CN 102027910 B CN102027910 B CN 102027910B CN 200910036123 CN200910036123 CN 200910036123 CN 200910036123 A CN200910036123 A CN 200910036123A CN 102027910 B CN102027910 B CN 102027910B
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Abstract
The invention belongs to the field of pesticides, and discloses a herbicidal composition containing diflufenican and dicamba and application thereof. The herbicidal composition comprises the diflufenican and the dicamba serving as main active ingredients, a mass ratio of the diflufenican to the dicamba is 1-65:1-80, and the diflufenican and the dicamba account for 5 to 85 percent of total mass ofthe herbicidal composition. The herbicidal composition can be used for preparing herbicides for controlling seedling weeds in barley fields and wheat fields, and has an obvious effect when used for preparing herbicides for controlling gramineous weeds and broadleaf weeds in the barley fields and the wheat fields. Compared with single-component herbicides, the herbicidal composition delays the weed resistance, has broad herbicidal spectrums and acts for a long time on the premise of improving herbicide effect, and is safe for barleys, wheat and afterculture crops.
Description
Technical field
The invention belongs to pesticide field, relate to a kind of Herbicidal combinations, be specifically related to a kind of Herbicidal combinations and application thereof that contains Diflufenican and dicamba.
Background technology
Diflufenican (diflufenican) has another name called diflufenican, chemical name: 2,4-, two chloro-2-(α, α, α-trichlorine fluorine m-phenoxy)-3-pyridine anilide, belong to the pyridines weed killer herbicide, and its structural representation is as follows:
Diflufenican belongs to the carotenoid biosynthesis inhibitor, can cause Destruction of Chlorophyll and cell rupture, makes plant dead, is the selectivity cornfield herbicidal of wide spectrum, in the soil longevity of residure longer, be applicable to before barley, the wheat paddock bud or weeding behind the bud.To impose on autumn sowing Wheat and barley field before 125～250g/ha bud or behind the bud, prevent and kill off grass family and broad leaved weed, especially clearvers, Veronica and violet weeds.But because the price of Diflufenican is higher, the unit are use cost is large, and it is restricted in the use.
Dicamba (dicamba) has another name called Dicamba, chemical name: 3,6-, two chloro-O-Anisic Acids, belong to the weed killer herbicide that benzoic acid is, and its structural representation is as follows:
Dicamba has interior suction conduction.Spraying was very fast by the leaf of weeds, stem, root absorption after this medicine was used for seedling; conduct up and down by phloem and xylem; medicament focuses mostly at meristematic tissue and the vigorous position of metabolic activity; hinder the normal activity of plant hormone; thereby make its death, life in 1 year and perennial broadleaf weed are had remarkable preventive effect.Can carry out soon the metabolism decomposition behind the gramineous plants such as wheat, the wheat absorption medicament and make it to lose efficacy, therefore the stronger pesticide resistance of performance.But, because it can only prevent and kill off the part broad leaved weed, and to grassy weed without preventive effect, and the part broad leaved weed is serious to its resistance, therefore, it has significant limitation on using.
Cornfield herbicidal is limit by crop safety at present, the herbicide spectrum is also limited, be used alone the weed killer herbicide single dose and can not control completely effectively the generation of wheat weeds, moreover some weed killer herbicide is because water-soluble large or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all easily causes this season crop or succession crop of dispenser.
Summary of the invention:
The objective of the invention is to overcome the above-mentioned deficiency of prior art, a kind of Herbicidal combinations that contains Diflufenican and dicamba is provided.
Another object of the present invention provides this Herbicidal combinations and prevents and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
A kind of Herbicidal combinations that contains Diflufenican and dicamba, it is characterized in that this Herbicidal combinations is take Diflufenican and dicamba as main active ingredient, wherein the mass ratio of Diflufenican and dicamba is 1～65: 1～80, and the mass ratio of preferred Diflufenican and dicamba is 1～50: 3～70.
In Herbicidal combinations of the present invention, the two gross mass percentage composition in Herbicidal combinations of Diflufenican and dicamba is 5～85%, and preferred gross mass percentage composition is 15～75%.
In the binary built preparation of Diflufenican of the present invention and dicamba, except the active ingredients such as Diflufenican 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 suspending agent, do outstanding agent, water dispersion granule, wetting powder etc.
Herbicidal combinations of the present invention can be used in the weed killer herbicides of wheat paddock, barley field weeds is prevented and kill off in preparation, particularly in the weed killer herbicide of grassy weed and broad leaved weed in wheat paddock, the barley field is prevented and kill off in preparation, use and have remarkable result, especially can improve the preventive effect to perennial weed.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.But selection herbicide spectrum of the present invention is different, uses after two kinds of suitable decrements of weed killer herbicide of the Diflufenican of pluses and minuses complementation and dicamba, kills weeds so that Weed Resistance produces Speed Reduction by two kinds of different mechanism, greatly improves the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide, and the lasting period is long.Diflufenican is the broad spectrum weeding agent, and it all has good preventive effect to grass family and broad leaved weed, and dicamba is the weed killer herbicide of preventing and kill off broad leaved weed, and it has good preventive effect to perennial broadleaf weed.After both mix, can improve the preventive effect to perennial broadleaf weed, and, because Diflufenican and dicamba have the front activity of weeding of bud, so that this combinations of herbicides is when preventing and kill off the weeds of being unearthed, to being about to the unearthed weeds of germination certain activity is arranged, suppressed the unearthed growth of weeds, prolonged the lasting period of medicament.
3, safe.Herbicidal composition of the present invention, be applied to before wheat, the barley seedling or postemergence weed control, it can prevent and kill off various grassy weeds and broad leaved weed in wheat, the barley field, under the prerequisite that has improved drug effect, wheat, barley and succession crop is all had very high safety.
Embodiment
Embodiment 1
Diflufenican 47%, dicamba 3%, NNO 6%, dodecyl sodium sulfate 4%, thickener 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% suspending agent.
Embodiment 2
Diflufenican 10%, dicamba 15%, NNO 8%, alkylphenol polyoxyethylene 7%, sodium lignin sulfonate supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% the outstanding agent of doing.
Embodiment 3
Diflufenican 50%, dicamba 25%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Diflufenican 30%, dicamba 20%, NNO 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% wetting powder.
Embodiment 5
Diflufenican 5%, dicamba 70%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 6
Diflufenican 1%, dicamba 19%, NNO 6%, dodecyl sodium sulfate 4%, xanthans 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 20% suspending agent.
Embodiment 7
1), toxicity determination test
Utilize the preparation among the embodiment 1～4, measure it to the co-toxicity coefficient of wheat paddock common weed amur foxtail.
Test method: the seed of quantitative amur foxtail is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat amur foxtail 3～6 leaves during the phase, do the composition spray processing of spraying in crawler type.Continuation cultivation in the greenhouse after processing, routine observation is respectively processed the preventive effect to weeds, the weeds fresh weight behind the 30d after each processing of weighing, the method for proposition is calculated its toxicity regression curve and co-toxicity coefficient by nineteen sixties such as Sun Yunpei.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.
Table 1 toxicity determination test result
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 re-compounded binary herbicides among the embodiment 1～4.
The contrast medicament:
50% Diflufenican suspending agent (commercially available), 48% dicamba aqueous solution (commercially available).
For studying thing: wheat
Wheat seedling grows fine, and robust plant is without other damage by disease and insect.
Prevent and kill off object: the wheatland field advantage weeds such as amur foxtail, wild oat, clearvers, Veronica.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid evenly sprayed application to accomplish there is not drain spray in the experimental plot, the phenomenon of many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to behind medicine, observe the condition of production of crop in 1～15d, to investigate medicament whether crop be had poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine), table 3 (40d behind the medicine), medicament the results are shown in Table 4 to the security survey of crop.
Table 2 field control effectiveness test result (20d behind the medicine)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 95 | 94 | 94a |
| Embodiment 2 | 4 | 97 | 92 | 91b |
| Embodiment 3 | 4 | 95 | 90 | 94a |
| Embodiment 4 | 4 | 96 | 91 | 93a |
| 50% Diflufenican suspending agent | 20 | 87 | 86 | 86c |
| 48% dicamba aqueous solution | 4 | - | 80 | 49d |
Table 3 field control effectiveness test result (40d behind the medicine)
| Treatment agent | Consumption (ga.i/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 96 | 95 | 95a |
| Embodiment 2 | 4 | 98 | 93 | 92b |
| Embodiment 3 | 4 | 96 | 91 | 95a |
| Embodiment 4 | 4 | 97 | 92 | 94a |
| 50% Diflufenican suspending agent | 20 | 88 | 87 | 87c |
| 48% dicamba aqueous solution | 4 | - | 81 | 50d |
Consumption in table 2 and the table 3 all refers to the consumption of active ingredient in each preparation.
Can find out from table 2 and table 3, the present invention has significant preventive effect to grassy weed and broad leaved weed, 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 processing in the residential quarter grows fine, and has no any medicine spot, illustrates that various medicaments are to the equal safety of wheat.
Claims (12)
1. Herbicidal combinations that contains Diflufenican and dicamba is characterized in that this Herbicidal combinations take Diflufenican and dicamba as main active ingredient, and prepares by the following method:
Diflufenican 47%, dicamba 3%, NNO 6%, dodecyl sodium sulfate 4%, thickener 2%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% suspending agent.
2. Herbicidal combinations that contains Diflufenican and dicamba is characterized in that this Herbicidal combinations take Diflufenican and dicamba as main active ingredient, and prepares by the following method:
Diflufenican 10%, dicamba 15%, NNO 8%, alkylphenol polyoxyethylene 7%, sodium lignin sulfonate supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% the outstanding agent of doing.
3. Herbicidal combinations that contains Diflufenican and dicamba is characterized in that this Herbicidal combinations take Diflufenican and dicamba as main active ingredient, and prepares by the following method:
Diflufenican 50%, dicamba 25%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersion granule.
4. Herbicidal combinations that contains Diflufenican and dicamba is characterized in that this Herbicidal combinations take Diflufenican and dicamba as main active ingredient, and prepares by the following method:
Diflufenican 30%, dicamba 20%, NNO 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% wetting powder.
5. Herbicidal combinations claimed in claim 1 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
6. Herbicidal combinations claimed in claim 2 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
7. Herbicidal combinations claimed in claim 3 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
8. Herbicidal combinations claimed in claim 4 is prevented and kill off application in the weed killer herbicides of wheat paddock, barley field weeds in preparation.
9. Herbicidal combinations claimed in claim 1 is prevented and kill off application in the weed killer herbicide of grass family and broad leaved weed in wheat paddock, the barley field in preparation.
10. Herbicidal combinations claimed in claim 2 is prevented and kill off application in the weed killer herbicide of grass family and broad leaved weed in wheat paddock, the barley field in preparation.
11. Herbicidal combinations claimed in claim 3 is prevented and kill off application in the weed killer herbicide of grass family and broad leaved weed in wheat paddock, the barley field in preparation.
12. Herbicidal combinations claimed in claim 4 is prevented and kill off application in the weed killer herbicide of grass family and broad leaved weed in wheat paddock, the barley field in preparation.
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| CN 200910036123 CN102027910B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and dicamba and application thereof |
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| CN 200910036123 CN102027910B (en) | 2009-09-28 | 2009-09-28 | Herbicidal composition containing diflufenican and dicamba and application thereof |
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| CN102027910A CN102027910A (en) | 2011-04-27 |
| CN102027910B true CN102027910B (en) | 2013-09-18 |
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| CN107787975A (en) * | 2016-08-30 | 2018-03-13 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and cinidon-ethyl |
| CN107771803A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and dimethenamid |
| CN107771800A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and flampropMmethyl |
| CN107771824A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and isoxaflutole |
| CN107787972A (en) * | 2016-08-30 | 2018-03-13 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and flampropMisopropyl |
| CN107787970A (en) * | 2016-08-30 | 2018-03-13 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and ethobenzanid |
| CN107771823A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing Mediben and isoxaben |
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| WO2003024227A2 (en) * | 2001-09-20 | 2003-03-27 | Syngenta Participations Ag | Herbicidal composition |
| DE10209478A1 (en) * | 2002-03-05 | 2003-09-18 | Bayer Cropscience Gmbh | Herbicide combinations with special sulfonylureas |
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