CN104585210A - Weeding composition - Google Patents
Weeding composition Download PDFInfo
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- CN104585210A CN104585210A CN201410835989.8A CN201410835989A CN104585210A CN 104585210 A CN104585210 A CN 104585210A CN 201410835989 A CN201410835989 A CN 201410835989A CN 104585210 A CN104585210 A CN 104585210A
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- halosulfuronmethyl
- sulfometuron methyl
- promazine sulfometuron
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Abstract
The invention belongs to the technical field of pesticides, and relates to a weeding composition. The composition is characterized by comprising propyrisulfuron and halosulfuron-methyl two active ingredients. The composition can be used for preparing water dispersible granules and suspending agents and enlarging the weeding spectrum, is remarkable in weeding effect and long in durability, does not have remarkable cross-resistance with existing ingredients, and has a remarkable synergetic effect.
Description
Technical field
The invention belongs to pesticide field, relate to the Herbicidal combinations of promazine Sulfometuron Methyl and halosulfuronmethyl specifically.
Background technology
Promazine Sulfometuron Methyl is by the pyrimidine radicals sulfonylurea selectivity broad-spectrum herbicide of SUMITOMO CHEMICAL chemistry exploitation, although identical with the mechanism of action of other sulfonylurea herbicides, for acetolactate synthestase (ALS) inhibitor, but the weeds of its antagonism sulfonylurea herbicide have good preventive effect, there is residual effect effect, be mainly used in paddy field and prevent and kill off multiple annual gramineae and broad leaved weed.This weed killer herbicide consumption is low, to rice safety, but poor to the preventive effect of part sedge weed as needle spikesedge herb, difformed galingale herb, flat stalk Fischer grass etc.
Halosulfuronmethyl belongs to sulfonylurea herbicide; chemical name: 3-(4; 6-dimethoxypyridin-2-base)-1-(1-methyl-3-chloro-4-methoxy formoxyl pyrazoles-5-base) sulfonylureas; be mainly used in preventing and kill off wheat, corn, paddy rice, sugarcane, lawn etc. and prevent and kill off broad leaved weed and nutgrass flatsedge, as Siberian cocklebur, datura, Amaranthus retroflexus, kitchen garden, flowerofanhour root or herb, knotweed, black nightshade, the rhizome of nutgrass flatsedge etc.
Paddy rice is main cereal crop, and rice is the staple food grain of the population in the world 1/3rd, almost accounts for 2/3rds of its food.China's Rice Production is with a long history, distributional region is wide, and growing area spans cool temperate zone, middle temperate zone, warm temperate zone, five climatic zones in subtropics and the torrid zone from north to south, is eating rice production state the biggest in the world, sowing area occupies the second in the world, and gross yield ranks first in the world.Rice has very important status in production, the stable yields of paddy rice, increases production and has important strategic importance to the grain security of China.Along with the establishing in large scale of paddy rice, the concern being increasingly subject to people of weeds in rice field.According to FAO (Food and Agriculture Organization of the United Nation), about 250 kinds, the weeds of whole world harm staple food crop, become the key factor affecting crop yield.Processing mode at present for weeds has weeding by machine and chemical herbicide weeding, use chemical herbicide not only can save large quantities of labour, raise labour productivity, and weeds are removed between the seedling making common mechanical be difficult to remove, make mechanization perfect further, traditional tillage and cultivation method is also improved.Therefore, the investigation and application of chemical herbicide is more and more subject to people's attention.At present, it is necessary for researching and developing novel, efficient chemical weed killer herbicide.
Summary of the invention
The object of the invention is to the shortcoming for prior art, the Herbicidal combinations that a kind of herbicidal effect is good, broad weed-killing spectrum, security performance are high, production-increasing function is remarkable, dispenser is convenient, toxicity is low is provided.
Above-mentioned Herbicidal combinations, the weight ratio of promazine Sulfometuron Methyl and halosulfuronmethyl is 1:60 ~ 60:1.
Above-mentioned Herbicidal combinations, is mainly used in water prevention rice field annual gramineous weed, broad leaved weed and sedge weed.
Utilize above-mentioned Herbicidal combinations, be equipped with the known auxiliary agent of those skilled in that art, formulation of the present invention can be made with the known method of those skilled in that art.Its formulation that can process is water dispersible granules, suspending agent.
The advantage that the present invention has: one, undertaken composite by two kinds of weed killer herbicides, in certain ratio range, its synergy shows obvious synergistic effect, and the herbicidal effect of composition is significantly improved than single dose.Two, two kinds of weed killer herbicides are carried out composite, although the mechanism of action of these two kinds of components is identical, the resistance problem that energy customer service single dose causes.Three, there is wider herbicide spectrum and more excellent synergy control efficiency, halosulfuronmethyl compensate for the promazine Sulfometuron Methyl shortcoming low to sedge weed preventive effect, only need a drug just effectively can prevent and kill off rice field grass family, broad-leaved section and sedge weed, to paddy growth safety during use, the all right drug-fast generation of customer service rice weed, is conducive to agricultural synthesis and administers.
Embodiment
First applicant carries out Herbicidal Testing Trials, to evaluate the composite herbicidal effect of two kinds of compositions to promazine Sulfometuron Methyl and halosulfuronmethyl two kinds of active ingredients under room temperature condition of pot.Barnyard grass, Monochoria vaginalis, the rhizome of nutgrass flatsedge are paddy field common weed, more difficult anti-.According to the herbicidal spectrum of two kinds of active ingredients, life is surveyed object and is decided to be barnyard grass, Monochoria vaginalis, the rhizome of nutgrass flatsedge by us, and concrete performance is as follows:
Test medicine solution: the former medicine of halosulfuronmethyl and the former medicine of 95% promazine Sulfometuron Methyl that accurately take constant weight 95%, dissolve with the methyl alcohol of ten times, add in the clear water containing 0.1% Tween 80 emulsifier, be 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, Monochoria vaginalis and the rhizome of nutgrass flatsedge, 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) daylight 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
E in formula
0be to the theoretical preventive effect that weeds suppress after two kinds of active ingredient mixtures, E is to the actual measurement preventive effect that weeds suppress after two kinds of active ingredient mixtures, X is that promazine Sulfometuron Methyl is at this dose to the preventive effect of target weeds, Y is that halosulfuronmethyl 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, is synergistic effect when C is greater than 10%, be antagonism when being less than 10%, be addition between ± 10% time.
Table 1 promazine Sulfometuron Methyl and halosulfuronmethyl different ratio survey result of the test to the raw of barnyard grass activity of weeding
Table 2 promazine Sulfometuron Methyl and halosulfuronmethyl different ratio survey result of the test to the raw of the activity of weeding of Monochoria vaginalis
As can be seen from Table 1, promazine Sulfometuron Methyl and halosulfuronmethyl composite after, fine to the preventive effect of barnyard grass, after two kinds of compositions are composite, have significant synergistic effect, synergy coefficient (C) is all greater than 10%.Synergistic effect after two kinds of active ingredients are composite is remarkable.
As can be seen from Table 2, promazine Sulfometuron Methyl and halosulfuronmethyl composite after, have significant synergistic effect to Monochoria vaginalis, synergy coefficient (C) is all greater than 10%.Synergistic effect after two kinds of active ingredients are composite is remarkable.
Table 3 promazine Sulfometuron Methyl and halosulfuronmethyl different ratio survey result of the test to the raw of the activity of weeding of the rhizome of nutgrass flatsedge
As can be seen from Table 3, halosulfuronmethyl and promazine Sulfometuron Methyl composite after, fine to the preventive effect of the rhizome of nutgrass flatsedge, synergy coefficient (C) is all greater than 10%.Synergistic effect after two kinds of active ingredients are composite is remarkable.
Above-mentioned 3 groups of raw tests are tested data and are shown, compared with the effect of single medicament, by promazine Sulfometuron Methyl and halosulfuronmethyl composite after, good synergistic effect is had to the preventive effect of barnyard grass, Monochoria vaginalis, the rhizome of nutgrass flatsedge, after two kinds of composite reagents, solve the problem that the preventive effect of single medicament to a certain class weeds is bad, all have good control efficiency to the weeds of paddy field frequent species.
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 buy.Formulation examples is as follows:
Embodiment one: 36.6% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent
Embodiment two: 31% promazine Sulfometuron Methyl halosulfuronmethyl water dispersible granules
Embodiment three: 11% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent
Embodiment four: 12% promazine Sulfometuron Methyl halosulfuronmethyl water dispersible granules
Embodiment five: 20% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent
Embodiment six: 18% promazine Sulfometuron Methyl halosulfuronmethyl water dispersible granules
Embodiment seven: 5.5% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent
Embodiment eight: 31% promazine Sulfometuron Methyl halosulfuronmethyl water dispersible granules
Embodiment nine: 30.5% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent
Select above embodiment, carry out the field control effectiveness test of water prevention weeds in paddy field, for verifying the effect of embodiment control rice weed, contrasting with promazine Sulfometuron Methyl single dose and halosulfuronmethyl single dose simultaneously, determining the control efficiency of each embodiment.
Experimental technique: the HERBICIDE TEST of 20% promazine Sulfometuron Methyl halosulfuronmethyl suspending agent and other preparation water prevention barnyard grass in paddy field, Monochoria vaginalis and the rhizome of nutgrass flatsedge.Experiment place is farm, Hulin City, Heilongjiang Province 854, time is on May 24th, 2014, paddy rice is 3-4 leaf phase Direct-seeding Rice, the weeds 2-3 leaf phase, test medicine is all prepared according to above-mentioned example and is used 5% promazine Sulfometuron Methyl suspending agent and 10% halosulfuronmethyl water dispersible granules to contrast, test totally ten two process, each process three repetition, 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.Record the synoptic data on the dispenser same day and a week thereafter, specific as follows:
Table 4 duration of test meteorological data
Respondent is the barnyard grass in field, Monochoria vaginalis, the rhizome of nutgrass flatsedge two kinds of weeds, and visual test medicament occurs without poisoning paddy rice.
Preventive effect calculates according to the following equation:
The test of pesticide effectiveness of table 5 promazine Sulfometuron Methyl and halosulfuronmethyl different ratio control rice weed
Passable as apparent from above-mentioned data, promazine Sulfometuron Methyl and halosulfuronmethyl composite after, to three kinds of weeds preventive effect of 15 days, 30 days all more than 85%, there is very significant synergistic effect.Meanwhile, after two kinds of compositions are composite, complex preparation all has good preventive effect for grass family and broad leaved weed and nutgrass flatsedge, relative to single dose, expands herbicidal spectrum.
As can be seen from field test data, promazine Sulfometuron Methyl and the composite rear herbicidal effect to weeds in field of halosulfuronmethyl two kinds of compositions are far above the herbicidal effect of two kinds of single doses, composite rear synergistic effect significantly, expand herbicidal spectrum, reduce the spraying times of peasant thus reduce the amount of labour of peasant, increase economic efficiency.
Claims (2)
1. a Herbicidal combinations, is characterized in that: active component is made up of promazine Sulfometuron Methyl and halosulfuronmethyl, and the weight ratio of described promazine Sulfometuron Methyl and halosulfuronmethyl is 1:60 ~ 60:1.
2. composition according to claim 1, is characterized in that: make water dispersible granules, suspending agent by active component and auxiliary material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835989.8A CN104585210A (en) | 2014-12-26 | 2014-12-26 | Weeding composition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410835989.8A CN104585210A (en) | 2014-12-26 | 2014-12-26 | Weeding composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106489975A (en) * | 2015-09-07 | 2017-03-15 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN106577712A (en) * | 2015-10-16 | 2017-04-26 | 江苏龙灯化学有限公司 | Weeding composition |
| CN106689166A (en) * | 2015-11-16 | 2017-05-24 | 江苏龙灯化学有限公司 | Weeding composition containing halosulfuron-methyl and propyrisulfuron |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010209061A (en) * | 2009-02-13 | 2010-09-24 | Nippon Nohyaku Co Ltd | Herbicide composition and method for using the same |
| CN103271066A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Herbicidal composition |
| CN103271065A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Weeding composition |
-
2014
- 2014-12-26 CN CN201410835989.8A patent/CN104585210A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010209061A (en) * | 2009-02-13 | 2010-09-24 | Nippon Nohyaku Co Ltd | Herbicide composition and method for using the same |
| CN103271066A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Herbicidal composition |
| CN103271065A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Weeding composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106489975A (en) * | 2015-09-07 | 2017-03-15 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN106577712A (en) * | 2015-10-16 | 2017-04-26 | 江苏龙灯化学有限公司 | Weeding composition |
| CN106689166A (en) * | 2015-11-16 | 2017-05-24 | 江苏龙灯化学有限公司 | Weeding composition containing halosulfuron-methyl and propyrisulfuron |
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Address after: 102488, Beijing, Fangshan District Star Street, No. 1 hospital green sail, No. 16, building 8 Applicant after: Beijing Yanhua Yongle Biotechnology Co., Ltd. Address before: 102488 No. 8, Liangxiang, Beijing, Fangshan District Applicant before: Beijing Yanhua Yongle Biotechnology Co., Ltd. |
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Application publication date: 20150506 |