CN107593724A - A kind of direct-sowing dry paddy field soil closes herbicide - Google Patents
A kind of direct-sowing dry paddy field soil closes herbicide Download PDFInfo
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- CN107593724A CN107593724A CN201710896128.4A CN201710896128A CN107593724A CN 107593724 A CN107593724 A CN 107593724A CN 201710896128 A CN201710896128 A CN 201710896128A CN 107593724 A CN107593724 A CN 107593724A
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- herbicide
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- paddy field
- butralin
- prometryn
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Abstract
A kind of direct-sowing dry paddy field soil closing herbicide belongs to agrochemical;The agent mainly includes 4 kinds of butachlor, prometryn, Evil humulones and butralin active ingredients, and active ingredient mass ratio is 2~40: 1~15: 1~15: 1~9%, and the mass percent summation of 4 kinds of active ingredients in the composition is 5%~79%;This herbicide significantly improves relative to the single dose of equally effective composition, binary built agent or ternary built agent synergistic effect, and can effectively expand herbicide controlling spectrum, has both reduced the dosage of single active ingredient, has improved the security to rice again;It is wide available for grassy weed, broad leaved weedses and Sha He sections weeds, the applicability prevented and kill off in direct-sowing dry paddy field.
Description
Technical field
The invention belongs to agrochemical technical field, relates generally to one and is used for direct-sowing dry paddy field soil closing herbicide.
Background technology
In the last few years, influenceed by factors such as labor shortage and water resources shortages, direct sowing on dry paddy field as a kind of light letter,
The tillage method of water saving is favored by many peasants.But for a long time, China's rice always with rice transplanting cultivate based on plant technology,
The weeding technique and Herbicidal composition of existing rice terrace are more based on rice transplanting is cultivated.And direct sowing on dry paddy field is by rice paddy seed
The planting type in crop field after non-irrigated site preparation is directly seeded in, does not establish water layer, the generating capacity of weeds in field and complicated journey after broadcasting immediately
Degree is far above rice transplanting field, rice and careless synchronous growth, easily forms crop smothering, it has also become hinders direct sowing on dry paddy field cultivation agronomic technique to promote
Using and realize high yield, stable yields principal element.Preventing and kill off farmland weed generally has two kinds of change prosecutor methods:First, soil closing removes
Grass, i.e., after planting, dispenser before emergence, by suppressing suppressing weed seed germination or killing the weeds seed bud weeding sprouted;Second, stem
Leaf handles weeding, i.e., kills the weeds after emergence by destroying the physiological mechanism of weed growth.Soil closes the good energy of herbicidal effect
Crop smothering is effectively prevented, mitigates the pressure of after seedling cauline leaf process weeding.At present, the dry crop such as corn and soybean has special
Soil closing herbicide, and direct-sowing dry paddy field still lacks shaping, efficient soil closing herbicide.Therefore, develop special
Soil closing herbicide is the effective technology means for preventing and kill off Weed infestation between direct-sowing dry paddy field, and can promote light letter,
The direct sowing on dry paddy field technology of water saving enters a new developing stage.
At present, it is existing to can be used for direct-sowing dry paddy field soil closing herbicidal composition, such as Chinese patent CN
106665629《A kind of direct-sowing dry paddy field before seedling complex weedicide》Disclose a kind of effective ingredient for butralin, clomazones,
Pyrazosulfuron herbicidal composition, butralin, clomazones, the mass ratio of pyrazosulfuron are 10~70: 1~10: 0.1~10,
The preventive effect of single, double cotyledon weeds, fresh weight preventive effect, comprehensive fresh weight preventive effect in direct-sowing dry paddy field are significantly improved.It is Chinese special
Sharp CN 1202314A《The preparation of herbicide for rice seedling bed》It is 1% herbicide butachlor and 0.2% to disclose a kind of effective ingredient
Herbicide Prometryn weedicide agent composition, to the herbicide rate of the grass in seedbed and broad leaved weed up to 98%~100%.China
Patent CN 103766355B《A kind of live special herbicidal methods of floods and droughts》It is 60% butachlor to disclose a kind of active ingredient
250ml+48% butralins 400ml+50% kills barnyard grass king's 50g+ MCPA,MCP,methoxone sodium 50g+33% and applies the live field of floods and droughts that 100ml is mended in field
Herbicidal scheme is closed, is 88.7% to the total preventive effect of weeds in field, barnyard grass preventive effect is 91.1%, and lady's-grass preventive effect is 79.2%.
Inventor verifies that above-mentioned several Herbicidal combinations are primarily present following defect by long term test:(1) by right
Several specific proportionings are tested disclosed in above-mentioned several Herbicidal combinations, find it to rice Leersia Sw, rice barnyard grass, water barnyard grass, duck tongue
It is important in grass and the direct-sowing dry paddy field such as difformed galingale herb to endanger weeds and play good prevention effect.(2) soil after dispenser
Water content and temperature disclose above-mentioned several Herbicidal combinations formulation and very big difference be present in the preventive effect of dry direct-seeding rice field weed.Example
Such as, butralin+clomazone+pyrazosulfuron compound herbicide needs just play embodiment when soil moisture content is more than 80%
Described in preventive effect.
The content of the invention
The purpose of the present invention is aiming at the above-mentioned problems of the prior art, there is provided a kind of synergistic function is good, kills
Grass spectrum is wide and efficiently, by soil environment condition is influenceed the small and dry seeded rice field special-purpose soil closing high to Security of rice and removed
Careless agent, reach the medicament closing Herbicidal technical barrier for solving direct-sowing dry paddy field, be the big of direct sowing on dry paddy field agronomic technique
Area popularization and application provide the purpose of technological movement.
The object of the present invention is achieved like this:A kind of direct-sowing dry paddy field soil closes herbicide, the herbicide master
To include 4 kinds of butachlor, Evil humulones, prometryn and butralin active ingredients, the butachlor, prometryn, Evil humulones and Zhong Ding
The mass ratio of spirit is 2~40: 1~15: 1~15: 1~9;Butachlor, Evil humulones, prometryn and the butralin are in herbicide
Mass percent summation be 5%~79%.
Butachlor chemical name is chloro- 2 ', the 6 '-diethyl acetanils of N- (fourth oxygen methyl)-a-, is selected for amide-type
Property Uptake and translocation herbicide, can be used with seedling stage before bud.After the young shoot of weeds absorbs, by suppressing and destroying egg in weeds body
White enzymatic synthesis, the formation of protein is influenceed, suppress weed bud and young root normal growth and development, so that weeds are dead.Viscous
Used on loam and the higher soil of the content of organic matter, medicament can be absorbed by soil colloid, be not easy to be leached, and the special efficacy phase is up to 30
~60d.Annual nutgrass flatsedge and part annual gramineous weed and broad leaved weed can be prevented and kill off, as barnyard grass, lady's-grass grass, green bristlegrass,
The annual gramineous weeds such as fescue, Monochoria vaginalis, Drilgrass, special-shaped sand-grass and some broadleaf weeds.
Prometryn chemical name is double (the isopropylamino) -1,3,5-triazines of 2- methyl mercaptos -4,6-, is that grass is absorbed in selectivity
Agent.By photosynthetical system II using D1 albumen as action target, suppress the photosynthesis of plant and play a role, mainly pass through root
It is absorbed into plant and conducts, can absorb and conduct through root and leaf, broad weed-killing spectrum, is applied before bud after bud.Prometryn
It is water-soluble relatively low, it can be adsorbed after dispenser by soil clay particle in 0-5cm table soil, form medicine layer, contacted when weed germination is unearthed
Medicament, 20~70d of lasting period, the lasting period in nonirrigated farmland are grown compared with paddy field, and the lasting period in clay is longer.The weeds just sprouted are prevented
Best, broad weed-killing spectrum is imitated, annual gramineous weed and broad leaved weed can be prevented and kill off.Prometryn be applied to cotton, soybean, wheat class,
Rice terrace etc. prevents and kill off the annual unifacial leaf such as barnyard grass, lady's-grass, moleplant seed, purslane, amur foxtail and broadleaf weed.
Evil humulones chemical name is the 5- tert-butyl groups -3- (2,4- bis- chloro- 5- o-phenyl-isopropyls) -1,3,4- oxadiazoline -2-
Ketone, before being contact bud, post-emergence herbicide.It is branched chain amino acid synthetic inhibitor, by blocking primary amino acid figured silk fabrics ammonia
The biosynthesis of acid and isoleucine, so as to prevent cell division and plant growth.For prevent and kill off a variety of annual unifacial leaves and
Broadleaf weed, be mainly used in rice field prevent and kill off barnyard grass, moleplant seed, ditch millet, difformed galingale herb, Monochoria vaginalis, mexicana, globe daisy alkali grass,
Sagittaria pygmaea etc..Soil treatment, floods and droughts field use can be made, mainly absorbed by weed bud and cauline leaf to work, there is light
Under the conditions of can play good removing activity.As weeds growth drug effect declines, and the weeds to having grown up are substantially invalid.
Butralin chemical name is N- sec-butyl -4- tertiary butyl -2,6- dinitroanilines, is soil treatment before selective bud
Agent, mainly by suppressing the cell division of separate living tissue, so as to suppress weed bud and young root growth.Butralin can make plant life
Long conditioning agent uses, control tobacco axillary bud growth, it is applied to soybean, cotton, rice, seeding corn and other crops Tanaka prevent and kill off barnyard grass,
1 year raw monocotyledon weed and part broadleaf weed such as eleusine indica, lady's-grass, green bristlegrass.To rice direct seeding field monocotyledon weed and
Part broadleaf weed preventive effect is obvious.
Limited based on existing various direct-sowing dry paddy field closing herbicides by crop safety, herbicide controlling spectrum is also limited, single
The generation of weeds in direct sowing on dry paddy field solely can not be completely effectively controlled using a kind of one-pack type herbicide.At the same time, weeding
Agent dosage is excessive or uneven also easily cause of dispenser produces unacceptable toxicity to this season crop or succession crop.The present invention
Make full use of butachlor, prometryn, Evil humulones and butralin different in physicochemical property and the mechanism of action, corresponding herbicide ability,
Herbicide mechanism and herbicide controlling spectrum also have very big difference.Different herbicidal compositions are reasonably compounded, and can both expand herbicide controlling spectrum,
The weeds that difficult to some comparisons can be prevented and kill off play preferable preventive effect.
It is contemplated that the defects of overcoming existing herbicidal composition to exist, efficiently solves direct-sowing dry paddy field soil envelope
Close weeding technique.The composition that the present invention is applied in direct sowing of rice Tanaka generates astoundingly soil closing herbicidal effect,
Composition show each be used alone than each active ingredient, binary built is applied in combination or ternary built is applied in combination
The substantially higher herbicidal effect of herbicidal effect synthesis, there is obvious synergistic function.
Direct-sowing dry paddy field soil provided by the invention closes herbicide beneficial effect:
1st, there is the danger killed weeds effect, can effectively prevent and kill off dry seeded rice field all kinds weeds of broad spectrum activity
Evil, the defects of when compensate for single use and limitation.
2nd, there is very strong selectivity, the emergence and after seedling growth after dispenser to dry direct-seeding rice do not produce suppression, poisoning etc.
Negative effect.
3rd, good herbicidal effect can be played under different soils moisture condition and temperature conditionss, sealing effect is by dispenser
Soil water content and temperature influence smaller afterwards.
4th, significant cooperative compensating, promotion, synergistic effect are shown in certain ratio range, herbicidal effect is than single
Agent significantly improves, and reduces applications of pesticide amount and spraying times, and synergy, the effect of drop originally protrude, and its application can produce huge
Economic benefit, social benefit and ecological benefits.
Embodiment
It is described in more detail with reference to the specific embodiment of technical solution of the present invention.All hundred in embodiment
Ratio is divided to be weight percentage.
A kind of direct-sowing dry paddy field soil closes herbicide, and the herbicide mainly includes butachlor, Evil humulones, prometryn
With 4 kinds of active ingredients of butralin, the mass ratio of the butachlor, prometryn, Evil humulones and butralin for 2~40: 1~15: 1~
15: 1~9;The butachlor, Evil humulones, the mass percent summation of prometryn and butralin in herbicide be 5%~
79%.The herbicide can be processed into wettable powder, oil-suspending agent, suspending agent, water dispersible granules, granule formulation, wherein
Most preferred dosage form be suspending agent and wettable powder.The herbicide be used to preventing and kill off grassy weed in direct-sowing dry paddy field,
Broad leaved weed and Sha He sections weeds.
Embodiment 1:53% the third Cao An Evil humulone prometryn butralin missible oil suspending agents, wherein butachlor 30%,
It is benzene ethylbenzene phenol polyethenoxy ether 5% in prometryn 10%, Evil humulones 4%, butralin 9%, pesticidal preparations auxiliary ingredients, wooden
Plain sodium sulfonate 8%, epoxidized soybean oil 5%, organobentonite 5%, add exquisite soybean oil to 100%.
Embodiment 2:52% the third Cao An Evil humulone prometryn Butralin wettable powders, wherein butachlor 25%,
Evil humulones 6%, prometryn 12%, butralin 9%, lauryl sodium sulfate 2%, dibutyl naphthalene sulphur in pesticidal preparations auxiliary ingredients
Sour sodium 3%, calcium lignosulfonate 5%, bentonite 10%, adds kaolin to 100%.
Biological detection 1:
In order to verify the present invention to the preventive effect of dry direct-seeding rice field weed, in 2015~2017 years, continuous 3 years in different soil
Dry seeded rice field soil closing Herbicidal Testing Trials are carried out under earth environmental condition, test medicine is as follows:
(1) embodiment 1:Butachlor 30%, the, Evil humulones 4% of prometryn 10% and the suspending agent of butralin 9%.
(2) embodiment 2:Butachlor 25%, the, Evil humulones 6% of prometryn 12% and the wettable powder of butralin 9%.
(3) 1 is compareed:Butachlor 30%, the suspending agent of 10% He Evil humulones of prometryn 4%.
(4) 2 are compareed:Butachlor 30%, prometryn 10% and the suspending agent of butralin 9%.
(5) 3 are compareed:The, Evil humulones 4% of butachlor 30% and the suspending agent of butralin 9%.
(6) 4 are compareed:The, Evil humulones 4% of prometryn 10% and the suspending agent of butralin 10%.
(7) 5 are compareed:Butachlor 30%, the suspending agent of prometryn 10%.
(8) 6 are compareed:The suspending agent of 30%, Evil humulones of butachlor 4%.
(9) 7 are compareed:Butachlor 30%, the suspending agent of butralin 9%.
(10) 8 are compareed:The suspending agent of butachlor 40%.
(11) 9 are compareed:The wettable powder of prometryn 40%.
(12) 10 are compareed:The suspending agent of Evil humulones 12%.
(13) 11 are compareed:The suspending agent of butralin 40%.
Three annual result of the tests show that the third careless amine Evil humulone prometryns butralin is multiple to dry direct-seeding rice field weed
It is demonstrated by prominent prevention effect.Total preventive effect of its suspending agent is 93.8%, is 95.5% to grassy weed preventive effect, to Sha's standing grain
The imitation of section weeds is 91.2%, and it is 93.1% that broad leaved weedses, which are imitated,.The test data table of 3 years shows as pretilachlor
Evil humulone prometryn butralins occupy the first to the preventive effect of dry seeded rice field all kinds weeds, notable or extremely notable
Higher than other single doses, insecticide combination scheme.This shows the complementary effect of herbicidal spectrum after pretilachlor, Evil humulones, prometryn, butralin combination
Fruit is notable, can efficiently control dry direct-seeding rice field weed.
Strain of each test medicines of 15d to weeds in field is imitated after the dispenser of table 1
Biological detection 2:
While preventive effect of the checking present invention to dry direct-seeding rice field weed, investigated within continuous 3 years in 2015~2017 years
Implement the influence that 1 pair of dry direct-seeding rice is emerged and after seedling grows of grinning in the present invention, and there is provided the sky for not applying soil closing herbicide
White control.As a result show, the annual of emergence rate 3 of blank control is 62.3%, the third careless amine Evil humulone prometryns Zhong Ding
The annual of emergence rate 3 of clever compound drug closing weeding is 61.9%, Seal treatment with compare between the not notable (P of emergence rate difference
> 0.05).In addition, also indicated that to after seedling seedling quality and growing process investigation result, handle with compare between difference it is not notable.
This shows that the present invention can efficiently control dry direct-seeding rice field weed, also have higher security to dry direct-seeding rice.
Claims (3)
1. a kind of direct-sowing dry paddy field soil closes herbicide, it is characterised in that:The herbicide mainly includes butachlor, Evil grass
4 kinds of ketone, prometryn and butralin active ingredients, the mass ratio of the butachlor, prometryn, Evil humulones and butralin is 2~40:
1~15: 1~15: 1~9;The butachlor, Evil humulones, the mass percent summation of prometryn and butralin in herbicide are
5%~79%.
2. direct-sowing dry paddy field soil according to claim 1 closes herbicide, it is characterised in that:The herbicide can add
Work into wettable powder, oil-suspending agent, suspending agent, water dispersible granules, granule formulation, most preferred dosage form therein be suspending agent and
Wettable powder.
3. direct-sowing dry paddy field soil according to claim 1 closes herbicide, it is characterised in that:The herbicide is used for
Prevent and kill off grassy weed, broad leaved weed and the Sha He sections weeds in direct-sowing dry paddy field.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109645015A (en) * | 2019-02-13 | 2019-04-19 | 丁前展 | A kind of rice closing herbicidal composition and its application |
CN112205402A (en) * | 2020-11-24 | 2021-01-12 | 安徽苏昆化工科技有限公司 | Weeding composition containing butralin, clomazone and butachlor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109645015A (en) * | 2019-02-13 | 2019-04-19 | 丁前展 | A kind of rice closing herbicidal composition and its application |
CN112205402A (en) * | 2020-11-24 | 2021-01-12 | 安徽苏昆化工科技有限公司 | Weeding composition containing butralin, clomazone and butachlor |
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