CN101617684A - Herbicide composition containing nicosulfuron and clopyralid - Google Patents
Herbicide composition containing nicosulfuron and clopyralid Download PDFInfo
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- CN101617684A CN101617684A CN200810017169A CN200810017169A CN101617684A CN 101617684 A CN101617684 A CN 101617684A CN 200810017169 A CN200810017169 A CN 200810017169A CN 200810017169 A CN200810017169 A CN 200810017169A CN 101617684 A CN101617684 A CN 101617684A
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- clopyralid
- nicosulfuron
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Abstract
The invention relates to a herbicide composition containing nicosulfuron and clopyralid, which uses the nicosulfuron and the clopyralid as main active ingredients, wherein the weight ratio of the nicosulfuron to the clopyralid is between 1:30 and 30:1. The herbicide composition has the advantages of low toxicity, weak allergenicity, few damages to human and livestock, broad herbicide controlling spectrum and remarkable weed control strengthening effect and is suitable for preventing and controlling various weeds in fields of various crops, particularly corn fields.
Description
[technical field]
The invention belongs to the pesticide herbicide field, particularly a kind of herbicidal composition that contains nicosulfuron and clopyralid.
[background technology]
The corn field herbicide after seedling mainly is nicosulfuron (other titles: Yu Nongle at present; chemical name: 1-(4; 6-dimethyl oxygen yl pyrimidines-2-yl)-3-(3-dimethylamino formylpyridine-2-base sulphonyl) urea or 2-(4; 6-dimethoxypyridin-2-base amino carbonyl amino sulfonyl)-N; the N-dimethyl nicotinamide); by the former industry of Japanese stone company Development and Production, cost is very high on market.Nicosulfuron is the inner sucting conduction type weed killer herbicide, can by the activity of acetate lactic acid synzyme in the inhibition plant corpus, and then be stoped cell division by stem leaves of plants and root absorption and conduction rapidly, and sensitive plant is stopped growing.Nicosulfuron can be prevented and kill off behind the corn field seedling
The wealthy industry weeds of annual and perennial standing grain herbaceous weed and part, but poor to the unifacial leaf behind the corn field seedling and most of broad leaved weed preventive effect.
Clopyralid (commercial goods, produce for Shangyu, Zhejiang city Austria holds in the palm chemical industry Co., Ltd again) be synthetic hormone class weed killer herbicide, mainly absorb,, be accumulated in growing point through phloem and xylem conduction by cauline leaf, make plant produce excessive ribonucleic acid, impel meristematic tissue excessively to break up, root, stem and leaf growth deformity, nutrient consumption is excessive, vascular bundle transporting function is obstructed, and causes weeds death.Clopyralid can conduct to root through xylem, thereby can thoroughly kill the perennial weed of dark root.In the sensitive plant body, clopyralid causes typical steroids reaction.Broad leaved plant stem distortion, curling; Cup-shaped, the shrunk of blade; Root and aerial growth are suppressed, thereby cause death.
[summary of the invention]
Technical problem to be solved by this invention provides a kind of to unifacial leaf behind the corn field seedling and the good herbicidal composition that contains nicosulfuron and clopyralid of broad leaved weed preventive effect, with remedy nicosulfuron after to the corn field seedling unifacial leaf and the shortcoming of most of broad leaved weed preventive effect differences.
The present invention contains the herbicidal composition of nicosulfuron and clopyralid, it is characterized in that its active component is the binary mixture that clopyralid and nicosulfuron are formed, by quality than nicosulfuron: clopyralid is 1: 30～30: 1.
The mechanism of action difference of two kinds of active ingredients of herbicidal composition of the present invention is killed grass spectrum difference.Synergy has mutually enlarged herbicidal spectrum between them, and the resistance of weeds reduces, to succession crop safety.
The preferred mass ratio of nicosulfuron and clopyralid is 4: 1, and the quality percentage composition of active component in Herbicidal combinations is 4～70%, is preferably 5%.
The present composition can be processed into conventional formulation such as A oil suspending agent (OF), B wetting powder (WP), C water dispersible granules (WG), D granula (GR) or E tablet (TA) according to preparation production method conventional on the Pesticide Science.The preferred dosage form of the present invention is oil suspending agent and wetting powder.Therefore the present invention relates to various preparations of above-mentioned herbicidal activity composition and preparation method thereof further.
Now details are as follows with preparation of the present invention and wherein each kind of composition:
A, oil-suspending agent (OF) are the high dispersive that forms in non-water system dispersion medium of active component, stable suspension system.Oil-suspending agent of the present invention is made up of active component, vegetable oil and/or mineral oils solvent, emulsifier, wetting agent, dispersant, and wherein wetting agent and dispersant can require to select to add or do not add according to preparation, also can only add wherein a kind of.Wherein the plant oil solvent can be soya-bean oil, cottonseed oil, palm oil, cocoa butter, rapeseed oil, Semen Ricini oil, turpentine oil, enriching vegetable oil, sunflower wet goods; Mineral oil can be the senior aliphatic hydrocarbon wet goods of paraffin series oil, methyl naphthalene.Emulsifier can be the compound of one or more anion and non-ionic surface active agent, also can be the compound of one or more anion surfactants, also can be the compound of one or more non-ionic surface active agents.Non-ionic surface active agent such as alkylphenol polyoxyethylene class, benzylphenol polyethenoxy ether class, benzylbiphenyl phenol polyethenoxy polyoxypropylene ethers, phenethyl phenol polyethenoxy ether and similar kind, fatty alcohol-polyoxyethylene ether and analog, fatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc.Anion surfactant such as alkylbenzenesulfonate, alkyl benzene sulfonate calcium salt, alkyl sulfonic acid alkylnaphthalene sulfonate, aliphatic alcohol sulfate, alkyl phosphate and similar kind thereof, polyoxyethylene carboxylate phosphate, alkylphenol polyoxyethylene phosphate and similar kind etc.The non-ionic surface active agent in the emulsifier and the part by weight of anion surfactant are 1～10: 1, and preferred proportion is 2～8: 1, and wetting agent such as lauryl sodium sulfate, JFC etc., dispersant have sodium lignin sulfonate, NNO etc.In preparation, the weight ratio of active component is 4～70%, the weight ratio of emulsifier is 1～20%, the weight ratio of wetting agent is 0.1%～15%, the weight ratio of dispersant is 0.1～15%, and when wetting agent and dispersant used simultaneously, the weight ratio of wetting agent was 0.1%～10%, the weight ratio of dispersant is 0.1～10%, and surplus is an oil.
B, wetting powder (WP) are active component evenly to be mixed with solid carrier, dispersant, wetting agent etc. after comminution by gas stream and produce preparation.Described solid carrier: can be the natural minerals class, as silica gel, silicate, talcum, kaolin, lime stone, potter's clay, dolomite, diatomite; Also can be synthetic vectors class, for example white carbon, precipitated calcium carbonate.Dispersant: as lignosulfonates, naphthalene sulfonic acid-formaldehyde condensation product (comprising dispersant NNO) and alkylphenol polyoxyethylene, formaldehyde condensation products sulphate.Wetting agent has lauryl sodium sulfate, JFC etc.In preparation, the content of active component is 4～70%, and the weight ratio of dispersant is 0.1～15%, and the weight ratio of wetting agent is 0.1～15%, and surplus is a solid carrier.
It is with active component, wetting agent, dispersant, adhesive and disintegrant that C, water dispersible granules (WG) are dry suspending agent (DF) again, forms by the mixing granulation with water.Be used for active component of the present invention, its weight ratio is 4～70%; Be used for wetting agent of the present invention and can be among sodium alkyl sulfate, the sodium alkyl benzene sulfonate plasma type surfactant one or more, its weight ratio is 0.1～15%; Be used for disintegrant of the present invention and can be among starch and derivative, alginic acid and salt and the clay etc. one or more, consumption is 0.1～20%; Be used for formaldehyde condensation products and one or more materials among the polycarboxylic acid surfactant, consumption 2～35% usually that dispersant of the present invention and adhesive are lignosulfonates, alkylbenzenesulfonate, alkylnaphthalene sulfonate.
D, granula (GR) are loose granule shape product, have active component, carrier and auxiliary agent to make.In the granula of the present invention, auxiliary agent has dispersant, adhesive, helps disintegrant, adsorbent, stabilizing agent etc.Dispersant comprises the alkyl naphthalene sulfonate, as Nekal BX, draw back powder AC etc., comprises two naphthalene sulfonate condensation products, as dispersant N, and dispersant NNO etc.Adhesive mainly contains starch, gum Arabic, sodium silicate, gypsum, polyvinyl alcohol, paraffin, pitch etc.Helping disintegrant mainly is some inorganic electrolytes, as sulphur ammonium, calcium chloride, sodium chloride, magnesium chloride, aluminium chloride etc.The representative kind of adsorbent is a white carbon, and diatomite, attapulgite, calcium carbonate etc. also can be made adsorbent in addition.Stabilizing agent is an anti-decomposition agent, and ester class, alcohols, organic acid, organic bases decompose agricultural chemicals all certain inhibitory action.
E, tablet (TA) and effervescent tablet are Formulation, and tablet of the present invention also has inserts, adsorbent, adhesive, lubricant, disintegrant etc. except that active component.Adhesive mainly contains starch, gum Arabic, sodium silicate, gypsum, polyvinyl alcohol, paraffin, pitch etc.Helping disintegrant mainly is some inorganic electrolytes, as sulphur ammonium, calcium chloride, sodium chloride, magnesium chloride, aluminium chloride etc.Filler that adds in the tablet and adsorbent mainly contain white carbon, diatomite, attapulgite, bentonite, talcum powder, gypsum, sulphate etc.
Administration form is according to the applicable pattern of conventional formulation; In all cases, must guarantee that their dispersion is trickle as much as possible and even.
Herbicidal combinations of the present invention is mainly used in management of weeds in the corn field, as lady's-grass, eleusine indica, green foxtail, acalypha copperleaf, kitchen garden etc., but does not limit to and above-mentioned weeds.
[beneficial effect]
1. broad weed-killing spectrum.Can be widely used in the land for growing field crops management of weeds, as lady's-grass, eleusine indica, green foxtail, acalypha copperleaf, kitchen garden, lamb's-quarters etc.
2. to the crop safety height.Herbicidal combinations toxicity of the present invention is low, and weak sensitization is low to the toxicity of crop, people and animals, useful natural enemy.Can be under the situation that does not injure crop, the management of weeds of safety.
3. weed control efficacy is remarkable.
[embodiment]
The present invention describes with the following example, but does not limit the present invention.
[example of formulations] 1:
5% nicosulfuron clopyralid oil-suspending agent (active component account for preparation gross mass 5%)
Take by weighing active component, add above-mentioned auxiliary element, through the ball milling sand milling to the active ingredient particle diameter less than 3um, promptly get described oil suspending agent.
[example of formulations] 2:
20% nicosulfuron clopyralid oil-suspending agent (active component account for preparation gross mass 20%)
Take by weighing active component, add above-mentioned auxiliary element, through the ball milling sand milling to the active ingredient particle diameter less than 3um, promptly get described oil suspending agent.
[example of formulations] 3:
40% nicosulfuron clopyralid oil-suspending agent (active component account for preparation gross mass 40%)
Take by weighing active component, add above-mentioned auxiliary element, through the ball milling sand milling to the active ingredient particle diameter less than 3um, promptly get described oil suspending agent.
[example of formulations] 4:
60% nicosulfuron clopyralid oil-suspending agent (active component account for preparation gross mass 60%)
Take by weighing active component, add above-mentioned auxiliary element, through the ball milling sand milling to the active ingredient particle diameter less than 3um, promptly get described oil suspending agent.
[example of formulations] 5:
50% nicosulfuron clopyralid wetting powder (active component account for preparation gross mass 5%)
Take by weighing active component, add above-mentioned auxiliary element, promptly get described pulvis after through comminution by gas stream each component being mixed.
[example of formulations] 6:70% nicosulfuron clopyralid granule (active component account for preparation gross mass 5%)
Take by weighing active component, add above-mentioned auxiliary element, after through comminution by gas stream each component being mixed, again mixture is promptly got described water dispersible granules through the comminutor granulation.
Biological Examples 1: prevent and kill off the corn field weed field control effectiveness test
1, test is handled
The phonetic clopyralid oil suspending agent of (1) 5% cigarette (4: 1) 40ml/ mu
The phonetic clopyralid oil suspending agents of (2) 5% cigarettes (4: 1) 60ml/ mu
The phonetic clopyralid oil suspending agents of (3) 5% cigarettes (4: 1) 80ml/ mu
The phonetic clopyralid oil suspending agents of (4) 5% cigarettes (4: 1) 100ml/ mu
(5) 4% nicosulfuron suspending agent 67ml/ mus
(6) 75% clopyralid water dispersible granules 15g/ mus
(7) clear water contrast
7 processing are established in test, and 4 repetitions are handled sub-districts, every processing sub-district area 20m for totally 28
2, district's group is arranged at random.(Co., Ltd of Shandong Binnong Technology Co., Ltd. produces the phonetic clopyralid oil suspending agent of 5% cigarette, product of the present invention) is reagent agent, 4% nicosulfuron suspending agent and 75% clopyralid water dispersible granules are the contrast medicament, and establishing not dispenser spray clear water is blank (CK).In the corn 2-3 leaf phase, convert 30 kilograms in water for every mu, adopt 552 third type sprayers (0.7mm aperture) even spraying.The field main weeds has lady's-grass, barnyard grass grass, eleusine indica, kitchen garden, Amaranthus retroflexus, acalypha copperleaf etc.
2, pilot project and method
(1) safety: after the dispenser, the situation of growing of investigation corn is estimated the safety of reagent agent to corn.
(2) herbicidal effect: every sub-district is got 4 points at random, 1/4 square metre of every some investigation, and after the dispenser 15 days, each investigation in 30 days was once write down weeds kind and strain number respectively, calculates weeds strain preventive effect.After the last investigation, collect 4 weeds in the sub-district, claim that its bright grass is heavy, calculate the heavy preventive effect of bright grass.
(3) experimental result
1. safety: the dispenser " Invest, Then Investigate ", chemicals treatment district corn plant height, Ye Se and blank district basically identical show that the phonetic clopyralid oil suspending agent of reagent agent 5% cigarette is to corn safety.
2. herbicidal effect
Result of the test sees Table I
From Table I as can be seen the phonetic clopyralid oil suspending agent of 5% cigarette to prevent and kill off corn weeds effect better.After the dispenser 15 days, the phonetic clopyralid oil suspending agent of 5% cigarette mu with 80, the 100ml herbicidal effect is best, weeds strain preventive effect is 91.4-95.9%, is higher than the preventive effect (60.3%) that contrast medicament 4% nicosulfuron suspending agent mu is used 15g/ mu with the preventive effect (84.6%) and the 75% clopyralid water dispersible granules mu of 67ml/ mu.After the dispenser 30 days, the phonetic clopyralid oil suspending agent of 5% cigarette mu with 60,80 and the 100ml herbicidal effect better, weeds strain preventive effect is 93.8-99.6%, the fresh weight preventive effect is 92.7-98.4%, be better than contrasting medicament 4% nicosulfuron suspending agent and 75% clopyralid water dispersible granules (it is 89.2% and 90.3% that preventive effect is counted in the weeds strain, and the fresh weight preventive effect is 84% and 91.3%).It is above-mentioned that to show that synergistic effect is compared in the phonetic clopyralid oil suspending agent of 5% cigarette and single agent obvious.
Annotate: the phonetic clopyralid oil suspending agent of medicament A:5% cigarette in the Table I
Medicament B:4% nicosulfuron suspending agent
Medicament C:75% clopyralid water dispersible granules
Biological Examples 2: prevent and kill off the corn field weed field control effectiveness test
1, test is handled
(1) 2% nicosulfuron clopyralid oil suspending agent (1: 1) 200ml/ mu
(2) 31% nicosulfuron clopyralid oil suspending agent (30: 1) 40ml/ mus
(3) 4% nicosulfuron suspending agent 67ml/ mus
(4) 75% clopyralid water dispersible granules 15g/ mus
(5) clear water contrast
5 processing are established in test, and 4 repetitions are handled sub-districts for totally 20,20 square metres of every processing sub-district areas, and district's group is arranged at random.(1)～(2) nicosulfuron clopyralid oil suspending agent (production of Co., Ltd of Shandong Binnong Technology Co., Ltd.) is a reagent agent, and 4% nicosulfuron suspending agent and 75% clopyralid water dispersible granules are the contrast medicament, and establishing not dispenser spray clear water is blank.In 1～3 leaf phase of corn, every mu of 3～5 leaf phase of weeds are converted 30 kilograms in water, even spraying.The field main weeds has: lady's-grass, barnyard grass grass, eleusine indica, kitchen garden, Amaranthus retroflexus, acalypha copperleaf etc.
2, pilot project and method
(1) safety: after the dispenser, the situation of growing of investigation corn is estimated the safety of reagent agent to corn.
(2) herbicidal effect: every sub-district is got 4 points at random, investigates 1/4 square metre at every, and each investigation in 30 days is once write down weeds kind and strain number respectively after the dispenser, calculates weeds strain preventive effect, and claims it bright careless heavy, calculates bright grass and weighs preventive effect.
(3) result of the test
1. safety: the dispenser " Invest, Then Investigate ", chemicals treatment district corn plant height, Ye Se and blank district basically identical show that reagent agent (1)～(2) nicosulfuron clopyralid oil suspending agent is all to corn safety.
2. herbicidal effect
Result of the test sees Table II
By Table II as can be known the nicosulfuron clopyralid oil suspending agent of different proportionings to the good preventive effect of annual common weed, to weeds strain preventive effect between 84.6～85.9%, to weeds fresh weight preventive effect between 83.1%～84.3%, effectively the control of maize field weed has guaranteed that the growth of corn is not subjected to weed encroachment.And composite dose of preventive effect is higher than the preventive effect of each single agent, and this shows that nicosulfuron and clopyralid are composite has an obvious synergistic effect.
More than two test examples explanation, the composite best proportioning (4: 1) of nicosulfuron and clopyralid is remarkable to annual gramineaes such as the common lady's-grass of corn field, barnyard grass grass, eleusine indica, kitchen garden, lamb's-quarters, acalypha copperleaf and broad leaved weed preventive effect, weeds strain preventive effect and fresh weight preventive effect are all about 90%, lasting period is more than one month, basic controlling the crop smothering of corn whole growth phase.And at nicosulfuron: in clopyralid=1: 30～30: 1 scope, annual gramineae and the broad leaved weed common to corn field all have good preventive effect.
Though above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (6)
1, a kind of herbicidal composition that contains nicosulfuron and clopyralid is characterized in that its active component is the binary mixture that clopyralid and nicosulfuron are formed, by quality than nicosulfuron: clopyralid is 1: 30～30: 1.
2, herbicidal composition according to claim 1, the mass ratio that it is characterized in that nicosulfuron and clopyralid is 4: 1.
3, herbicidal composition according to claim 1 is characterized in that the mass percent of active component in herbicidal composition is 4～70%.
4, herbicidal composition according to claim 3 is characterized in that the mass percent of active component in herbicidal composition is 5%.
5, herbicidal composition according to claim 1 is characterized in that being oil suspending agent, wetting powder, water dispersible granules, granula or tablet.
6, herbicidal composition according to claim 5 is characterized in that being oil suspending agent.
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| CN200810017169A CN101617684A (en) | 2008-07-02 | 2008-07-02 | Herbicide composition containing nicosulfuron and clopyralid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027981A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing nicosulfuron and clopyralid and application thereof |
| CN104585203A (en) * | 2014-12-16 | 2015-05-06 | 广东中迅农科股份有限公司 | Post-emergence herbicide composition used in corn fields |
| CN106332894A (en) * | 2016-08-23 | 2017-01-18 | 安徽久易农业股份有限公司 | Nicosulfuron-containing cornfield herbicide composition |
| CN110583706A (en) * | 2019-10-15 | 2019-12-20 | 安徽省益农化工有限公司 | Dry suspending agent containing nicosulfuron and preparation method thereof |
| CN113925054A (en) * | 2021-11-22 | 2022-01-14 | 浙江中山化工集团股份有限公司 | Herbicide composition of mesotrione and application thereof |
-
2008
- 2008-07-02 CN CN200810017169A patent/CN101617684A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027981A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicidal composition containing nicosulfuron and clopyralid and application thereof |
| CN104585203A (en) * | 2014-12-16 | 2015-05-06 | 广东中迅农科股份有限公司 | Post-emergence herbicide composition used in corn fields |
| CN106332894A (en) * | 2016-08-23 | 2017-01-18 | 安徽久易农业股份有限公司 | Nicosulfuron-containing cornfield herbicide composition |
| CN110583706A (en) * | 2019-10-15 | 2019-12-20 | 安徽省益农化工有限公司 | Dry suspending agent containing nicosulfuron and preparation method thereof |
| CN113925054A (en) * | 2021-11-22 | 2022-01-14 | 浙江中山化工集团股份有限公司 | Herbicide composition of mesotrione and application thereof |
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Application publication date: 20100106 |