CN105475320A - Compound weed killer - Google Patents
Compound weed killer Download PDFInfo
- Publication number
- CN105475320A CN105475320A CN201510981177.9A CN201510981177A CN105475320A CN 105475320 A CN105475320 A CN 105475320A CN 201510981177 A CN201510981177 A CN 201510981177A CN 105475320 A CN105475320 A CN 105475320A
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- CN
- China
- Prior art keywords
- azimsulfuron
- bentazone
- weeds
- weed killer
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of pesticides, and discloses a compound weed killer. The compound weed killer is characterized by containing two kinds of active ingredients, including azimsulfuron and bentazone. The composition is efficient, low-toxicity and broad-spectrum, and is safe and free of phytotoxicity to crops.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to the complex weedicide of azimsulfuron and bentazone.
Background technology
Azimsulfuron (Azimsulfuron) molecular formula is C
13h
16n
10o
5s, the same with other sulfonylurea herbicide, it is the inhibitor of acetolactate synthestase (ALS), the metabolite without activity of weeding is resolved into rapidly in paddy rice body, weeds are then absorbed by root and leaf, conduct in weeds plant body, namely weeds stop growing, leaf look chlorisis, then withered.Effectively can prevent and kill off barnyard grass, northern water hair flower, difformed galingale herb, toothcup, pondweed, weeds such as flower Lin, Europe rhizoma alismatis etc.Structural formula is as follows:
Bentazone (bentazone) is contact killing type optionally herbicide after seedling, for cauline leaf process in seedling stage, is worked by blade contact.Dry land uses, and is first transmitted to inhibited photosynthesis in chloroplast by blade face infiltration.Paddy field uses, and not only by blade face infiltration but also by root absorption, is transmitted to cauline leaf, strongly hinders weeds photosynthesis and water metabolism, causes nutrition hungry, physiological function is lacked of proper care and lethal.Active ingredient is detoxified to the weak glycoconjugates metabolism of activity in tolerable crop body, and to crop safety, after dispenser, 6 ~ 18 weeks bentazones can be decomposed by the microorganisms in soil.Be mainly used in preventing and kill off cereal crop, cotton, peanut, soybean, sweet potato, tea place, careless pasture, rape and pea Tanaka sedge family and broad leaved weed, invalid to grassy weed, to flat bar rattan grass, Herba Cyperi Glomerati, cyperus iria, difformed galingale herb, needle spikesedge herb, firefly Lin, Monochoria vaginalis, mexicana, water starwort, dragon's tongue, cyperus iria L. rhizoma scirpi, angustifolia arrowhead herb, pondweed, clearvers, shepherd's purse, field thistle, Siberian cocklebur, the rhizome of nutgrass flatsedge, acalypha copperleaf, lamb's-quarters, thorn amaranth and branch amaranth, hold back broad leaved weed and the nutgrass flatsedges etc. such as blue dish, grass of meadow rue, kitchen garden effectively.
Thought by our long-term field efficacy experiment, using with between some weed killer herbicide can overcome or alleviate chemical injury of crops.Meanwhile, because various weed killer herbicide is because of the difference of its chemical composition, physicochemical property, herbicide scope is also different.Some weed killer herbicide herbicide scope is narrower, but has unique action effect; The herbicidal spectrum of some weed killer herbicide is very wide, can prevent and treat the multiple weeds in field simultaneously.Field trial shows, Long-Time Service single herbicide not only easily produces resistance and poisoning, also can cause larger impact to soil environment.The composite of weed killer herbicide is widely regarded as one of important measures of weed killer herbicide reasonable employment, can reduce the generation of resistance after composite, reduces weed killer herbicide to the poisoning of economic crops, reduces the impact on soil, thus increase economic efficiency.Therefore we by azimsulfuron and bentazone two kinds of active ingredients composite, to reaching above-mentioned effect.
Summary of the invention
The object of the invention is to the shortcoming for prior art, the herbicidal composition that a kind of herbicidal effect is good, quick-acting is high, the lasting period is long, consumption is few is provided, to reducing peasant's dispenser cost, increasing economic efficiency.Be specifically related to the complex weedicide of azimsulfuron and bentazone.
Utilize above-mentioned complex weedicide, be equipped with the known auxiliary agent of those skilled in that art, with the known method of those skilled in that art, can be made into suspending agent.
In above-mentioned complex weedicide, the weight ratio of azimsulfuron and bentazone is 1:5-1:50.
Above-mentioned complex weedicide is mainly used in annual gramineous weed in water prevention rice field and broad leaved weed.
The advantage that above-mentioned complex weedicide has and beneficial effect: 1. weeding scope is wide, can well water prevention rice field annual gramineae and broad leaved weed; 2. complex preparation is to rice safety; 3. two kinds of active ingredients composite after, compared with two kinds of single doses, there is synergistic effect.
Embodiment
In order to verify azimsulfuron and bentazone two kinds of active ingredients are composite can good synergistic effect, first applicant tests under room temperature condition of pot, measures herbicidal effect after two kinds of active ingredient different proportion mixtures, evaluates its synergy.
Test selects grassy weed barnyard grass, broad leaved weed Monochoria vaginalis as target weeds.
Test medicine solution: the bentazone raw pesticide accurately taking the former medicine of constant weight 95% azimsulfuron and 95%, dissolves with appropriate methyl alcohol, adds in the clear water containing 0.1% Tween 80 emulsifier, is stirred to evenly, the solution containing certain active ingredient.Placebo solution: the water adding the Tween 80 emulsifier of 0.1% with isodose methyl alcohol.
Test method is as follows:
After adopting the inspection of gowing method mixed, medicament is to the activity of barnyard grass and Monochoria vaginalis, at the soil of the polypots amount of setting of high 7cm, diameter 10cm, 20, the seed for examination weeds is evenly sowed in polypots, the thin sand and soil that lid 0.5-1cm is thick, be placed on room temperature (about 20 DEG C) to cultivate, the above-mentioned former drug solns prepared carries out composite and is diluted to the liquid of finite concentration gradient, until weed growth to carrying out cauline leaf spraying process during the 3-5 leaf phase, every alms bowl spraying liquid 1ml, each process 4 repetition, uses blank solution to compare.After process, test material is placed in room temperature and cultivates, the growing state of routine observation weeds, within 21 days, estimates damage symptoms and the growth inhibition situation of target weeds afterwards, weighs strain fresh weight, calculate fresh weight inhibition (%).
Evaluation of effect method, evaluate weed killer herbicide mode of application according to gowing method, its formula is as follows:
E
0(％)＝X+Y×(100-X)/100
C＝E-E
0
In formula, E is to the actual measurement preventive effect that weeds suppress after two kinds of active ingredient mixtures, E
0be to the theoretical preventive effect that weeds suppress after two kinds of active ingredient mixtures, X is that azimsulfuron is at this dose to the preventive effect of target weeds, Y is that bentazone is at this dose to the preventive effect of target weeds, C is the synergy coefficient of mixture preparation, in order to evaluate the synergy of two kinds of active ingredients, be synergistic effect when C is greater than 10%, be antagonism when being less than 10%, be addition ± 10% time.
Table 1 azimsulfuron and bentazone different ratio survey result of the test to the raw of the activity of weeding of barnyard grass
Upper table can be found out, composite between two kinds of active ingredients, and synergy coefficient (C) is all greater than 12, has obvious synergistic effect to the preventive effect of barnyard grass.
Table 2 azimsulfuron and bentazone different ratio survey result of the test to the raw of the activity of weeding of Monochoria vaginalis
Upper table can be found out, composite between two kinds of active ingredients, and synergy coefficient (C) is all greater than 13, has good synergistic effect to the preventive effect of Monochoria vaginalis.
Above-mentioned experimental data can be found out, by azimsulfuron and bentazone composite, and use compared with single medicament, have good synergistic effect, the annual gramineae common for paddy field and broad leaved weed have good control efficiency.
Below by way of instantiation in order to further describe the present invention, but the present invention is absolutely not only only limitted to these embodiments following.In formula, percentage is all weight percentage, and the former medicine used and auxiliary agent are other producers and provide.Formulation examples is as follows:
Embodiment 112% azimsulfuron bentazone suspending agent
Embodiment 210% azimsulfuron bentazone suspending agent
Embodiment 322% azimsulfuron bentazone suspending agent
Embodiment 432% azimsulfuron bentazone suspending agent
Embodiment 538% azimsulfuron bentazone suspending agent
Embodiment 652.5% azimsulfuron bentazone suspending agent
Embodiment 731% azimsulfuron bentazone suspending agent
Embodiment 841% azimsulfuron bentazone suspending agent
Embodiment 925.5% azimsulfuron bentazone suspending agent
Above embodiment is selected to carry out the field control effectiveness test of water prevention weeds in paddy field, the effect of annual gramineous weed and broad leaved weed in checking formula water prevention rice field, simultaneously by comparing with bentazone single dose with azimsulfuron, determine composite after synergistic effect, be specifically implemented as follows:
SC) and the test of different agents water prevention herbicides for use in paddy experiment: azimsulfuron bentazone suspending agent (English formulation abbreviation:.Test site is Lingshui county of Hainan Province, time is on March 1st, 2014, field paddy rice is the 7-8 leaf phase, the weeds 3-4 leaf phase, test medicine is all prepared according to above-mentioned example and is used (the English formulation abbreviation: SC), 40% bentazone aqua (abridge: AS) contrast, test totally four process, each process three repetition by English formulation of 2% azimsulfuron suspending agent, community randomized arrangement, plot area 100m
2.Carry out the spraying of cauline leaf, after medicine 15 days and within 30 days, observe the strain preventive effect of each medicament respectively.The record dispenser synoptic data of a week, specific as follows:
Table 3 duration of test meteorological data
Respondent is barnyard grass and the Monochoria vaginalis in field, and visual test medicament occurs without poisoning field paddy rice.Preventive effect calculates according to the following equation:
Result of the test is as following table:
The test of pesticide effectiveness of table 4 azimsulfuron bentazone SC and different agents water prevention weeds in paddy field
Above-mentioned data can obviously be found out, azimsulfuron and bentazone composite after, all embodiments are to the preventive effect of barnyard grass and Monochoria vaginalis all more than 88%, and compared to two kinds of single doses, complex preparation wants high a lot of to two kinds of Weed-control effect, after medicine, the preventive effect of 30 days is compared with the preventive effect of 15 days, all improve, visible complex preparation extends the lasting period, all remarkable to the preventive effect of grassy weed and broad leaved weed, in this test scope of medication, to rice safety.
As can be seen from test data, after two kinds of active ingredients are composite, to the herbicidal effect of the weeds in field herbicidal effect far above two kinds of single doses, can drug effect be increased after composite, extend the lasting period of preparation, expand herbicide spectrum, thus reduce the amount of labour of peasant, increase economic efficiency.
Claims (2)
1. a complex weedicide, is characterized in that: active component is made up of azimsulfuron and bentazone, and the weight ratio of described azimsulfuron and bentazone is 1:5 ~ 1:50.
2. complex weedicide according to claim 1, is characterized in that: be made up of active component and auxiliary material and dispersible oil-suspending agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981177.9A CN105475320A (en) | 2015-12-23 | 2015-12-23 | Compound weed killer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981177.9A CN105475320A (en) | 2015-12-23 | 2015-12-23 | Compound weed killer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105475320A true CN105475320A (en) | 2016-04-13 |
Family
ID=55662901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510981177.9A Pending CN105475320A (en) | 2015-12-23 | 2015-12-23 | Compound weed killer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105475320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115380911A (en) * | 2022-08-19 | 2022-11-25 | 广州华苑园林股份有限公司 | Mikania micrantha herbicide and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059074A (en) * | 1990-08-23 | 1992-03-04 | 纳幕尔杜邦公司 | The Herbicidal combinations that is used for paddy field |
| JP2005239635A (en) * | 2004-02-26 | 2005-09-08 | Nissan Chem Ind Ltd | Weeding method in paddy rice cultivation by direct sowing on dry rice field |
| CN104519740A (en) * | 2012-01-12 | 2015-04-15 | 陶氏益农公司 | Herbicidal compositions containing bentazon and ALS inhibitor and ACCase inhibitor |
-
2015
- 2015-12-23 CN CN201510981177.9A patent/CN105475320A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059074A (en) * | 1990-08-23 | 1992-03-04 | 纳幕尔杜邦公司 | The Herbicidal combinations that is used for paddy field |
| JP2005239635A (en) * | 2004-02-26 | 2005-09-08 | Nissan Chem Ind Ltd | Weeding method in paddy rice cultivation by direct sowing on dry rice field |
| CN104519740A (en) * | 2012-01-12 | 2015-04-15 | 陶氏益农公司 | Herbicidal compositions containing bentazon and ALS inhibitor and ACCase inhibitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115380911A (en) * | 2022-08-19 | 2022-11-25 | 广州华苑园林股份有限公司 | Mikania micrantha herbicide and preparation method and application thereof |
| CN115380911B (en) * | 2022-08-19 | 2023-09-19 | 广州华苑园林股份有限公司 | Mikania micrantha control agent and preparation method and application thereof |
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Application publication date: 20160413 |
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