CN102027963B - Herbicidal composition containing diflufenzopyr and mesotrione and application thereof - Google Patents
Herbicidal composition containing diflufenzopyr and mesotrione and application thereof Download PDFInfo
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- CN102027963B CN102027963B CN 200910036129 CN200910036129A CN102027963B CN 102027963 B CN102027963 B CN 102027963B CN 200910036129 CN200910036129 CN 200910036129 CN 200910036129 A CN200910036129 A CN 200910036129A CN 102027963 B CN102027963 B CN 102027963B
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Abstract
The invention belongs to the field of pesticides, and discloses a herbicidal composition containing diflufenzopyr and mesotrione and application thereof. In the herbicidal composition, diflufenzopyr and mesotrione are taken as main active ingredients in the mass ratio of 1-80:1-60, and accounts for 10 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition provided by the invention can be applied to the preparation of herbicides for controlling post-emergence weeds in corn fields, and particularly has a remarkable effect when applied to the preparation of herbicides for controlling various gramineous and broadleaf weeds in the corn fields. Compared with a single-component herbicide, the herbicidal composition has lower dosage, postpones the resistance of the weeds, has a wide weeding spectrum and acts for a long time on the premise of improving herbicide effects, and is safe for corns and afterculture crops.
Description
Technical field
The invention belongs to pesticide field, relate to a kind of corn field postemergence weed control composition, be specifically related to a kind of Herbicidal combinations and application thereof that contains diflufenzopyr and nitre sulphur humulone.
Background technology
Corn is important crops, also is important forage crop, is described as " king of feed ", and in recent years, along with the development of livestock breeding, food processing and wine-making industry, market demand constantly increases.China is corn major country of production in the world, and national annual cultivated area reaches 2,140 ten thousand hm at present
2, account for 18.9% of cereal crops cultivated area, be only second to paddy rice and wheat, occupy the 3rd.Divide spring sowing, summer sowing, northern spring sowing corn district, based on northeast 3 provinces, the Inner Mongol and Ningxia, cultivated area is stabilized in more than 650 ten thousand hectares, accounts for the whole nation about 36%; More than 2,700 ten thousand tons of gross outputs account for about 40% of the whole nation.The Yellow River and Huai He River sea plain summer sowing corn district, based on Shandong and Henan, about more than 600 ten thousand hectares of cultivated area accounts for the whole nation 32%, and about 2,200 ten thousand tons of gross output accounts for the whole nation about 34%.
It is reported that national corn has 1/2 area to be subjected in various degree crop smothering approximately, serious crop smothering area is about 10～20%, if not weeding of field can make the corn underproduction more than 50%.The weeds of corn field are taken place general, and are of a great variety.According to national weeds findings of the survey, whole nation corn field weed has 22 sections, 38 belong to, 43 kinds, as barnyard grass grass, lady's-grass, eleusine indica, moleplant seed, green foxtail, india lovegrass, wild oat, lamb's-quarters, knotweed, amaranth, piemarker, salsola collina, field bindweed, lettuce Mai Lay, field thistle, Siberian cocklebur, Acalypha-austratis-L, Ageratum conyzoides etc.; Wherein, main weeds has lady's-grass, barnyard grass grass, green foxtail, eleusine indica, Amaranthus retroflexus, kitchen garden, acalypha copperleaf, lamb's-quarters, Siberian cocklebur, the rhizome of nutgrass flatsedge etc.Corn is subjected to crop smothering the most serious seedling stage, the corn growth middle and later periods weeds little to the influence of output.When seedling stage, corn was subjected to weed encroachment, plant was short and small, stalk spire Huang, caused the middle and later periods corn growth bad, the serious underproduction.Corn field weed vitality is extremely vigorous, and some seeds are embedded in the soil 20 years and still can germinate, as the rhizome of nutgrass flatsedge, lamb's-quarters, knotweed, kitchen garden, japanese bearbind etc.General weeds have ripe early, irregular, characteristics such as segmentation is emerged, be unfavorable for control, and a lot of weeds can wake up from death, perennial weed was especially shone 3 days in the field manually pulling out the back as kitchen garden, met rain and still can recover growth.In addition, weeds also have surprising fertility, and the solid number of most weeds is several times of crop, hundred times even up to ten thousand times.According to investigations, a strain lady's-grass has 220,000 seeds approximately, and as seen how strong its fertility have.The corn field weed growth rapidly, amount of growth is big, strive water with corn, strive fertilizer, strive the space, bigger to corn seedling growth harm, cause that seedling is thin, a little less than the seedling, influence output and reach 10-50%, 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.
Diflufenzopyr (diflufenzopyr), have another name called fluorine pyrrole acyl grass amine, ((4-(3 for 1-for chemical name: 2-, 5-difluorophenyl) semicarbazone) nicotinic acid ethyl), it is a kind of amino carbamide herbicides, be mainly used in the corn postemergence weed control, its broad weed-killing spectrum can be prevented and kill off multiple broad leaved weed and and undergraduate course weeds effectively.It is reported that the weeding of diflufenzopyr is general to be better than present used corn field herbicide.It has resistant weed or weeds such as Bermuda grass, Veronica that special efficacy is arranged to nitre sulphur humulone.But diflufenzopyr is produced less at home, and price is higher, and the unit are use cost is big, it is sold with usage amount all be restricted.
Nitre sulphur humulone (Mesotrione); it is logical to have another name called mesotrione, Meath; a kind of three ketones weed killer herbicide; chemical name: 2-(4-mesyl-2-nitro benzoyl) cyclohexane-1, the 3-diketone belongs to before the selectivity inner sucting conduction type maize seedling and herbicide after seedling; it can suppress the biosynthesis of carotenoid; it is dead that weeds are occurred after the albefaction, and it can be by the leaf of plant and root absorption, the transmission downwards to the top.Nitre sulphur humulone can effectively be prevented and kill off broadleaf weeds such as corn field dayflower, piemarker, knotweed, acalypha copperleaf, lamb's-quarters, Amaranthus retroflexus, monocotyledon weeds such as lady's-grass, barnyard grass grass, green foxtail is also had certain effect of preventing and kill off, to corn safety.Under normal crop rotation, to succession crop such as wheat class, rape, potato, beet safety.But nitre sulphur humulone is relatively poor to the control efficiency of grassy weed, and unit are use cost height, makes it in use be subjected to considerable restraint.
Corn field 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 corn field weed 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.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations that contains diflufenzopyr and nitre sulphur humulone.
Another object of the present invention provides the application of this Herbicidal combinations in the weed killer herbicide of preparation control of maize field weed.
A kind of Herbicidal combinations that contains diflufenzopyr and nitre sulphur humulone is characterized in that this Herbicidal combinations is main active ingredient with diflufenzopyr and nitre sulphur humulone, and the mass ratio of diflufenzopyr and nitre sulphur humulone is 1～80: 1～60.The mass ratio of preferred diflufenzopyr and nitre sulphur humulone is 15～60: 5～40.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of diflufenzopyr and nitre sulphur humulone is 10～85%, and the preferred mass percentage composition is 20～75%.
In the binary built preparation of diflufenzopyr of the present invention and nitre sulphur humulone, except active ingredients such as diflufenzopyr and nitre sulphur humulone, 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 oil-suspending agent, do outstanding agent, water dispersion granule, wetting powder etc.
Herbicidal combinations of the present invention can be after the corn field seedling is prevented and kill off in preparation be used in the weed killer herbicides of weeds, particularly uses to have remarkable result in the weed killer herbicides of various grassy weeds and broad leaved weed in the corn field is prevented and kill off in preparation.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.The weeding mechanism of diflufenzopyr is to suppress the plain transfer of weed growth, and nitre sulphur humulone is to suppress the carotenoid biosynthesis.That is to say that Herbicidal combinations of the present invention can kill weeds by two kinds of different approaches, can greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Diflufenzopyr and nitre sulphur humulone all are the broad spectrum weeding agent, after both mix, herbicidal spectrum is wideer, and, because nitre sulphur humulone has the preceding activity of weeding of bud, makes this combinations of herbicides when preventing and kill off the weeds of being unearthed, and the weeds of being unearthed that soon germinate are had certain activity, suppress the unearthed growth of weeds, prolonged the lasting period of medicament.
3, safe.Herbicidal combinations of the present invention is applied to the corn field postemergence weed control, and it can prevent and kill off various grass family and broad leaved weed in the corn field, under the prerequisite that has improved drug effect, has avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Embodiment
Embodiment 1
Diflufenzopyr 20%, nitre sulphur humulone 10%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 5%, thickener 2%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% suspending agent.
Embodiment 2
Diflufenzopyr 19%, nitre sulphur humulone 6%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, dodecyl sodium sulfate 4%, 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
Diflufenzopyr 35%, nitre sulphur humulone 40%, 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
Diflufenzopyr 35%, nitre sulphur humulone 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 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
Diflufenzopyr 1%, nitre sulphur humulone 24%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 5%, thickener 2%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% oil-suspending agent.
Embodiment 6
Diflufenzopyr 24%, nitre sulphur humulone 1%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 5%, thickener 2%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 25% oil-suspending agent.
Embodiment 7
Diflufenzopyr 60%, nitre sulphur humulone 15%, 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 8
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure it to the co-toxicity coefficient of corn field common weed dayflower.
Test method: the seed of quantitative dayflower is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat dayflower 3～6 leaves during the phase, do the composition spray processing of spraying in crawler type.Handle in the greenhouse, back and continue to cultivate, each handles preventive effect to weeds routine observation, and each weeds fresh weight after handling of weighing behind the 30d is pressed the method for nineteen sixty propositions such as Sun Yunpei, 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 determination of activity 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 re-compounded binary herbicides among the embodiment 1～4.
The contrast medicament:
10% nitre sulphur humulone suspending agent (just reaching earlier), 20% diflufenzopyr WG (commercially available).
For studying thing: corn
Maize 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:
Corn field advantage weeds such as lady's-grass, green foxtail, Ya Zhi grass, little lamb's-quarters, willow leaf knotweed.
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.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) and 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)
| Handle medicament | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 10 | 94 | 91 | 92 |
| Embodiment 2 | 10 | 89 | 94 | 91 |
| Embodiment 3 | 10 | 93 | 92 | 93 |
| Embodiment 4 | 10 | 90 | 92 | 92 |
| 10% nitre sulphur humulone suspending agent | 10 | 70 | 85 | 80 |
| 20% diflufenzopyr WG | 20 | 85 | 83 | 84 |
Table 3 field control effectiveness test result (40d behind the medicine)
| Handle medicament | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 10 | 92 | 90 | 91 |
| Embodiment 2 | 10 | 87 | 92 | 90 |
| Embodiment 3 | 10 | 90 | 88 | 88 |
| Embodiment 4 | 10 | 88 | 90 | 90 |
| 10% nitre sulphur humulone suspending agent | 10 | 60 | 75 | 66 |
| 20% diflufenzopyr WG | 20 | 75 | 70 | 74 |
Consumption in table 2 and the table 3 all refers to the consumption of active ingredient in each preparation.
As can be seen, the present invention has significant preventive effect to grassy weed 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 corn of handling in the residential quarter grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of corn.
Claims (12)
1. Herbicidal combinations that contains diflufenzopyr and nitre sulphur humulone, it is characterized in that this Herbicidal combinations is main active ingredient with diflufenzopyr and nitre sulphur humulone, preparation by the following method: diflufenzopyr 20%, nitre sulphur humulone 10%, calcium dodecyl benzene sulfonate 4%, alkylphenol polyoxyethylene 5%, thickener 2%, solvent naphtha supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% suspending agent.
2. Herbicidal combinations that contains diflufenzopyr and nitre sulphur humulone, it is characterized in that this Herbicidal combinations is main active ingredient with diflufenzopyr and nitre sulphur humulone, preparation by the following method: diflufenzopyr 19%, nitre sulphur humulone 6%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 5%, dodecyl sodium sulfate 4%, 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 diflufenzopyr and nitre sulphur humulone, it is characterized in that this Herbicidal combinations is main active ingredient with diflufenzopyr and nitre sulphur humulone, preparation by the following method: diflufenzopyr 35%, nitre sulphur humulone 40%, 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 diflufenzopyr and nitre sulphur humulone, it is characterized in that this Herbicidal combinations is main active ingredient with diflufenzopyr and nitre sulphur humulone, preparation by the following method: diflufenzopyr 35%, nitre sulphur humulone 15%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 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. the application in the weed killer herbicide of the described Herbicidal combinations of claim 1 weeds after the corn field seedling is prevented and kill off in preparation.
6. the application in the weed killer herbicide of the described Herbicidal combinations of claim 2 weeds after the corn field seedling is prevented and kill off in preparation.
7. the application in the weed killer herbicide of the described Herbicidal combinations of claim 3 weeds after the corn field seedling is prevented and kill off in preparation.
8. the application in the weed killer herbicide of the described Herbicidal combinations of claim 4 weeds after the corn field seedling is prevented and kill off in preparation.
9. the application in the weed killer herbicide of the described Herbicidal combinations of claim 1 various grassy weeds and broad leaved weed after the corn field seedling is prevented and kill off in preparation.
10. the application in the weed killer herbicide of the described Herbicidal combinations of claim 2 various grassy weeds and broad leaved weed after the corn field seedling is prevented and kill off in preparation.
11. the application in the weed killer herbicide of the described Herbicidal combinations of claim 3 various grassy weeds and broad leaved weed after the corn field seedling is prevented and kill off in preparation.
12. the application in the weed killer herbicide of the described Herbicidal combinations of claim 4 various grassy weeds and broad leaved weed after the corn field seedling is prevented and kill off in preparation.
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| CN102919229B (en) * | 2012-11-26 | 2014-04-16 | 联保作物科技有限公司 | Herbicide composition |
| CN103960254B (en) * | 2014-04-08 | 2016-05-18 | 广东中迅农科股份有限公司 | A kind of Herbicidal combinations that contains mesotrione |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1596649A (en) * | 2004-08-25 | 2005-03-23 | 马韵升 | Herbicide composition containing methyl sulcotrione |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1596649A (en) * | 2004-08-25 | 2005-03-23 | 马韵升 | Herbicide composition containing methyl sulcotrione |
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