CN100479659C - Herbicide - Google Patents
Herbicide Download PDFInfo
- Publication number
- CN100479659C CN100479659C CNB2006101043527A CN200610104352A CN100479659C CN 100479659 C CN100479659 C CN 100479659C CN B2006101043527 A CNB2006101043527 A CN B2006101043527A CN 200610104352 A CN200610104352 A CN 200610104352A CN 100479659 C CN100479659 C CN 100479659C
- Authority
- CN
- China
- Prior art keywords
- killer herbicide
- nicosulfuron
- brominal
- weed killer
- weeds
- 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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- 239000005586 Nicosulfuron Substances 0.000 claims abstract description 33
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a herbicide, which consists of nicosulfuron and bromoxynil. The two agents account for 1-85% of the total weight of the agents, so that the components have a synergistic effect, most of monocotyledonous and dicotyledonous weeds in a corn field can be prevented and removed at one time, and the weeds in the whole growth period of corn can be controlled by one-time application.
Description
Technical field
The invention belongs to agriculture weeding chemicals technical field, relate in particular to a kind of compound weed killer herbicide that mainly is applicable to weeding between corn, wheat paddock.
Background technology
The chemical name of nicosulfuron (Nicosulfuron) is (2-(4,6. dimethoxypyridin-2-base carbamyl aminosulfonyl)-N, a N-dimethyl nicotinamide).It is a kind of inner sucting conduction type weed killer herbicide, can be absorbed and conduct rapidly by stem leaves of plants and root, by suppressing the activity of acetolactate synthestase in the plant corpus, stop the synthetic and then prevention cell division of branched-chain amino acid achievement propylhomoserin, leucine and isoleucine, sensitive plant is stopped growing. be mainly used in the corn field postemergence weed control, prevent and kill off annual broadleaf weeds such as annual gramineous weeds such as barnyard grass grass, green foxtail, eleusine indica, annual bluegrass, lady's-grass and kitchen garden, chickweed, nutgrass flatsedge, shepherd's purse Lay, Amaranthus retroflexus, long column knotweed, climbing groundsel, green garden.
The chemical name of Brominal (Bromoxnil) is 3,5 one two bromo-4 hydroxy-phenylformonitriles.Cauline leaf was handled the contact killing type weed killer herbicide after Brominal was widely used as the selectivity seedling abroad with the form of its caprylate, sodium salt or sylvite.It is that a kind of selectivity cauline leaf is handled the contact killing type weed killer herbicide, is mainly absorbed by blade, by suppressing photosynthetic each process, makes necrosis rapidly.Can prevent and kill off broad leaved weeds such as piemarker, Siberian cocklebur, amaranth, black nightshade, Siberian cocklebur, salsola collina, corn gromwell, field bindweed, corn-bind in wheat, the corn field effectively, to gramineous crop safety, all noresidues in crop cauline leaf and grain, in the vegetative period that plant growth is grown, use, from first and second sheet leaf zoon of cereal plant to the end a slice leaf zoon to the end a slice leaf grow all and can use, but as all medications of 2 to 8 leaf phases of corn.
Nicosulfuron, two kinds of weed killer herbicides of Brominal are to use separately respectively preventing and kill off on the corn field weed in the existing technology, and range of application has certain limitation, and effect is general; In addition, use single agent for a long time separately, weeds are prone to resistance, and weed community also can change.For executing corn field weeds such as grass, black nightshade because of knotweed, amaranth, field artificial, that the malignant weed dominant population is become in natural selection in recent years, and the preventive effect of elder weed is very poor.
Summary of the invention
The purpose of this invention is to provide the compound weed killer herbicide that has synergistic function between a kind of each active ingredient and malignant weed dominant population and elder weed are had excellent preventive effect.
The technical solution adopted in the present invention is as follows:
A kind of weed killer herbicide is characterized in that this weed killer herbicide is is wetting powder, suspending agent or water dispersible granules, the soluble powder that active ingredient is made with nicosulfuron, Brominal.
In this weed killer herbicide active ingredient, the weight percentage of nicosulfuron and Brominal is: nicosulfuron 1～100: Brominal 1～100, this active ingredient accounts for 2～85% of total formulation weight amount.
The preferred weight percentage composition of nicosulfuron and Brominal is respectively in this weed killer herbicide active ingredient: nicosulfuron 1～80%, and Brominal 1～80%, this active ingredient accounts for 2～85% of total formulation weight amount.
The weight percent proportioning that the raw material of the wetting powder of described this weed killer herbicide is formed is as follows:
Nicosulfuron 1～80%
Brominal 1～80%
Auxiliary agent 4～18%
(adjuvant) filler surplus
The weight percent proportioning that the raw material of the suspending agent of described this weed killer herbicide is formed is as follows:
Nicosulfuron 1～80%
Brominal 1～80%
Auxiliary agent 2～16%
Water surplus
The weight percent proportioning that the raw material of the water dispersible granules of described this weed killer herbicide is formed is as follows:
Nicosulfuron 1～80%
Brominal 1～80%
Auxiliary agent 4～15%
Filler or filler surplus
The weight percent proportioning that the raw material of the soluble powder of described this weed killer herbicide is formed is as follows:
Nicosulfuron 1～80%
Brominal 1～80%
Auxiliary agent 4～10%
Filler or filler surplus
Described Brominal can be caprylate, sodium salt or the sylvite of Brominal.
Described auxiliary agent can be wetting agent, dispersant, suspending agent, thickener, interleaving agent, defoamer, disintegrant; Filler or filler comprise: talcum, pyrophyllite, kaolin, bentonite, diatomite, attapulgite, potter's clay etc.
With nicosulfuron and Brominal is that this weed killer herbicide that active ingredient carries out obtaining after composite is the inner sucting conduction type weed killer herbicide, these two kinds of active ingredients can absorb and conduction rapidly by stem leaves of plants and root, by suppressing the activity of acetolactate synthestase in the plant corpus, and suppress a series of physiology and biochemical pathway in the factor affecting weeds bodies such as photosynthesis and protein synthesis, sensitive plant is stopped growing.This weed killer herbicide after composite has enlarged and has killed the grass spectrum, especially more weak weeds of Brominal, nicosulfuron list agent herbicidal effect such as multitude etc. is had good preventive and therapeutic effect.The inventor thinks that the composite weed killer herbicide of the present invention has good herbicidal effect and the bigger grass that kills is composed, nicosulfuron and Brominal have synergistic function, and have and tag and the double effect of interior suction, reducing the herbicide effect spectrum that has enlarged nicosulfuron and Brominal agricultural chemicals under the prerequisite of using active drug composition consumption.When special weight ratio between the two is 1:1-15, weeds there is good preventive effect, comprehensive herbicidal effect reaches more than 95%, this weed killer herbicide kill the simple addition of herbicidal effect that careless effect is not only two kinds of effective ingredients, and in recent years because of artificial, natural selection and become the malignant weeds such as black nightshade, field bindweed, knotweed, Siberian cocklebur, amaranth of malignant weed dominant population, and the weeds of elder weed, difficult control have outstanding effect; It also can delay the generation of weeds pesticide resistance, and having overcome the long-term weeds resistance of using single agent to bring separately increases degradation defective under the integrated control effect of population differentiation, drug effect.
The active ingredient of weed killer herbicide provided by the invention can utilize prior art to make multi-form preparations such as comprising wetting powder, suspending agent, water dispersible granules or soluble powder.Can support by nicosulfuron, Brominal and solid carrier being mixed together grind as wetting powder.Employed carrier should not react with nicosulfuron and Brominal in the preparation, can select silica gel, silica, silicate, talcum, kaolin, diatomite, flour, bark powder, wood powder, shuck powder, cellulose powder or the like for use.And the employed dispersant of liquid preparation class can be aromatic sulphonic acid and its esters, naphthalene sulfonic acids for example also can be iso-octyl, octyl group or nonyl phenol, alkylphenol or tributyl phenyl polyglycol ether, fatty alcohol ethylene oxide condensate of fatty acid, alkyl aromatic sulfonic acid, fatty alcohol ether and cigarette thereof, sulfonated ethylene octylphenol ether, ethyoxyl alkylization or the like.Auxiliary agent can be divided into according to prior art according to different processing formulations: wetting agent, dispersant, suspending agent, thickener, interleaving agent, defoamer, disintegrant.
Different preparation provided by the invention can be according to different application targets, by existing techniques in realizing spraying, atomizing, dust, spread fertilizer over the fields or sprinkle and heterogeneity such as water and use.The dispersion effect of this weed killer herbicide is good more during use, and its weeding ratio is high more.
Beneficial effect of the present invention is, two kinds of components of this weed killer herbicide have synergistic function, inhale and the two kinds of effects of tagging in having sensitive plant, its herbicidal spectrum is wide, herbicidal effect good, nicosulfuron, the more weak weeds of Brominal list agent herbicidal effect had good control efficiency, particularly for executing wheat, corn field and sorghum field weeds such as grass, black nightshade because of knotweed, amaranth, field artificial, that the malignant weed dominant population is become in natural selection in recent years, and elder weed has excellent preventive effect.This weed killer herbicide also has the removing activity height, medicament active ingredient absorbs fast, take effect rapidly, medicament utilization rate of active components height, the advantage that the effective ingredient consumption reduces, medicament has reduced the unit are dosing, reduced harmful effect, be low toxicity, low-residual, pollution-free pesticide, met current green non-pollution agricultural product production demand environment.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and application examples.
Embodiment 1 presses column weight amount percentage and gets raw material:
Nicosulfuron 15%
Brominal 41%
Draw back powder (alkylnaphthalene sulfonate) 15%
Carboxymethyl cellulose 5%
Dispersing agent NNO (two naphthalene sulfonic acid-formaldehyde condensation product) 10%
Precipitated calcium carbonate 14%
Above-mentioned each component is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 2 presses column weight amount percentage and gets raw material:
Nicosulfuron 14%
Brominal 51%
Polyaryl phenol polyoxy ethyl ether phosphate alkylamine salt 4%
(wetting dispersing agent)
Sodium Benzoate 0.05%
Propane diols 8.0%
Veegum (thickener) 0.5%
Defoamer 1-768 0.1%
Water 22.35%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 3 presses column weight amount percentage and gets raw material:
Nicosulfuron 15%
Brominal 60%
Lignocellulose sodium 10%
Lauryl sodium sulfate 5.0%
Diatomite 10.0%
Above-mentioned each component is mixed in proportion, carry out emulsification and disperse, obtain water dispersible granules.
Embodiment 4 presses column weight amount percentage and gets raw material:
Nicosulfuron 5.7%
Brominal 79.3%
White carbon black 11.0%
Other auxiliary agent 4.0%
Contain: surfactant: lignosulfonates
Dispersant: alkylsulfonate
Stabilizing agent: fatty alcohol
Above-mentioned each component is mixed into homogeneous phase gets soluble powder
Embodiment 5 presses column weight amount percentage and gets raw material:
Nicosulfuron 76.5%
Brominal 7.5%
Precipitated calcium carbonate 11.0%
Lignin derivative 1.0%
Alkylsulfonate 2.0%
Fatty alcohol 1.0%
Above-mentioned each component is mixed into homogeneous phase gets soluble powder.
The suspending agent of the weed killer herbicide of application examples 1 Application Example 2 preparations is prevented and kill off the summer corn weeds in field.Profile test is as follows:
1. test site is in Jiangsu Hui Feng agricultural science and technology company test pseudo-ginseng number district and ten No. three districts, and preceding stubble is wheat;
2. corn is in artificial program request on June 2nd, 2005, corn variety: Yedan No.13.
3. meteorology and soil information: 14.8 ℃ of the minimum air temperatures, 4 of rain days in 10 days after the dispenser, rainfall 40.9mm; The soil texture is a viscosity, middle fertility, pH value 7.1.
4. spraying time June 23, corn was 3 leaf phases during dispenser, and annual weed mostly is the 2-4 phase greatly.
5 treatment regions are established in test, and a check plot, each sub-district are 2.6m * 3.8m.The corn field of summer weeds are prevented and kill off in the Herbicidal suspension agent of Application Example 2 preparations, and preventive effect and time relation to different weeds under the different amounts condition see Table 1.
Table 1 different amounts weed killer herbicide is to the preventive effect of various weeds after 25 days
Conclusion: composite by nicosulfuron and Brominal as can be seen from Table 1, its overall preventive effect reaches 94.6%, 95.7%, 98.4% respectively, apparently higher than 92.6% and 90.5% of nicosulfuron and the overall preventive effect of Brominal list agent.
The weed killer herbicide that makes with example 2 is prevented and kill off the experiment of corn field of summer weeds in ten No. three districts, the experimental condition of dispenser after 60 days and the results are shown in Table 2.
Table 2 different amounts weed killer herbicide is to the preventive effect of various weeds after 60 days
Annotate: weeds strain number system refers to that weeds still can long lobus cardiacus number or tiller number
Conclusion: as can be seen from Table 2 after after the dispenser 60 days, by nicosulfuron and the composite weed killer herbicide of Brominal, its overall preventive effect is respectively 81.0%, 81.3%, 83.9%, will be apparently higher than apparently higher than 76.4% and 73.1% of nicosulfuron and the overall preventive effect of Brominal list agent, illustrate that its lasting period relatively is longer than its single agent separately by the prepared weed killer herbicide of example 2.
The weed killer herbicide that application examples 2 usefulness examples 3 make carries out field weeding test to summer corn, and simultaneously the rate of growth of corn is compared test.Basic overview is tested with application examples 1 by No. 21 in Jiangsu Hui Feng agricultural science and technology company experimental field districts of test site.
6 treatment regions are established in test, and 4 repetitions are established in each processing, add up to 24 sub-districts, and each sub-district is 5.2m * 6.7m.During harvest corn (September 5) survey it corn yield increasing influence be the results are shown in Table 3
Table 3 weed killer herbicide influences result's contrast to corn yield increasing
Conclusion: as can be seen from Table 3, by nicosulfuron and the composite weed killer herbicide of Brominal, comparatively obvious for the corn yield increasing effect, under handled dosage, rate of growth after both are composite is respectively 8.85%, 10.28%, 11.84%, apparently higher than the rate of growth of nicosulfuron and the agent of Brominal list.
In the present invention, if no special instructions, then various additives are defined as follows among the present invention:
1, auxiliary agent: claiming pesticide adjuvant again, is the general name of other adminiclies except that pesticide original medicine of use in pesticidal preparations processing and the application.It is the auxiliary substance that is used for improving agricultural chemicals physicochemical property and serviceability.In general, the inanimate object activity of pesticide adjuvant own, but can strengthen the control efficiency of agricultural chemicals.
2, filler: filler claims filler again, is for regulating or improving the physical form of medicament and the solid matter of physics and chemistry behavior required adding in solid formulation processing.Itself does not have drug effect, mainly former medicine is played diluting effect, so that take a walk a spot of medicament on a large scale or to former medicine suction-operated, so that mechanical crushing.
3, carrier: the inert substance of load or dilution agricultural chemicals in the pesticidal preparations.Their structure is special, has bigger specific surface area, and absorption property is strong.
4, the relation of dispersant and auxiliary agent: auxiliary agent is divided into according to use is different: surfactant, emulsifier, dispersant, wetting agent, bleeding agent, solvent and cosolvent, carrier.Therefore, dispersant belongs to a kind of of auxiliary agent.
Because some fillers, carrier, the auxiliary agent that use among the present invention are the commercially available prod, and be comparatively common on the market, all belongs to prior art, so its source and preparation method no longer are provided.
Claims (1)
1, a kind of weed killer herbicide is characterized in that this weed killer herbicide is is active ingredient with nicosulfuron and Brominal, and wherein, nicosulfuron: the weight ratio of Brominal is 1:1-15, and this active ingredient accounts for the 2-85% of weed killer herbicide gross weight.2, according to the weed killer herbicide of claim 1, wherein, this weed killer herbicide is wetting powder, suspending agent, water dispersible granules or soluble powder.
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|---|---|---|---|---|
| CN1399886A (en) * | 2001-07-30 | 2003-03-05 | 江苏辉丰农化股份有限公司 | Herbicide |
| WO2005077178A2 (en) * | 2004-02-16 | 2005-08-25 | Syngenta Participations Ag | Herbicidal composition |
| JP4230301B2 (en) * | 2003-07-24 | 2009-02-25 | アルパイン株式会社 | Audio correction device |
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| CN1399886A (en) * | 2001-07-30 | 2003-03-05 | 江苏辉丰农化股份有限公司 | Herbicide |
| JP4230301B2 (en) * | 2003-07-24 | 2009-02-25 | アルパイン株式会社 | Audio correction device |
| WO2005077178A2 (en) * | 2004-02-16 | 2005-08-25 | Syngenta Participations Ag | Herbicidal composition |
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