CN107279158A - A kind of Herbicidal composition for paddy fields and its floating particle preparation being made - Google Patents
A kind of Herbicidal composition for paddy fields and its floating particle preparation being made Download PDFInfo
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- CN107279158A CN107279158A CN201710307739.0A CN201710307739A CN107279158A CN 107279158 A CN107279158 A CN 107279158A CN 201710307739 A CN201710307739 A CN 201710307739A CN 107279158 A CN107279158 A CN 107279158A
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- cyhalofop
- penoxsuam
- butyl
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- 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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
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- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to technical field of pesticide preparations, the floating particle preparation for specifically disclosing a kind of Herbicidal composition for paddy fields and its being made.Herbicidal combinations penoxsuam and cyhalofop-butyl composition of the present invention, the penoxsuam is 1 with cyhalofop-butyl compound weight ratio:20‑20:1.Herbicidal combinations and its preparation of the present invention are used as active ingredient using penoxsuam and cyhalofop-butyl class compound compounding, the two has complementary advantages, synergy, delay the generation of herbicide resistance, there is synergistic effect to weeds in paddy field simultaneously, greatly reduce dosage and times for spraying, have the advantages that it is safe efficient, environmentally friendly and easy to use, in the preventing and treating that can be widely applied for rice field crop smothering.
Description
Technical field
The invention belongs to technical field of pesticide preparations, particularly relate to a kind of Herbicidal composition for paddy fields and its be made
Floating particle preparation.
Background technology
Paddy rice is annual gramineae plant, is produced throughout each continent in addition to the South Pole.Paddy rice is not only China most
Staple food crop, is also one of world's staple food crop.About 1.45 hundred million hectares of whole world Monitoring of Paddy Rice Plant Area.China paddy rice
Sown area accounts for the 1/4 of national cereal crops.No matter cultivated area or yield, paddy rice all tops the list in China cereal crops
Position.But, always there is different degrees of crop smothering in the rice field of all rice workspaces of China.Wherein, medium crop smothering area accounts for water
More than the 46% of the total cultivated area of rice, serious crop smothering area is more than 11.5%, and these weeds are at war with every respect with paddy rice,
Paddy rice is caused harm, thus annual more than 200 hundred million kilograms of grain of loss.Therefore, domestic rice field widely uses herbicide, it is to avoid water
Rice underproduction because of weeds.
But, due to using the change of a certain class herbicide and wheatland cropping system, new varieties in rice terrace for a long time
Introduce so that obvious change occurs for weed community, and paddy field weed is propagated rapidly and constantly spread, and some herbicides are
It is found to generate resistance, particularly sulfonyl urea compound herbicide.And broad leaved weed such as angustifolia arrowhead herb, rhizoma alismatis, Monochoria vaginalis, rain
The weeds in paddy field fertility such as flower is strong long, and diffusion velocity is fast, harm weight, it has also become the malignant weed of rice terrace kainogenesis in recent years,
Cause Severe Reduction of Rice.In recent years, angustifolia arrowhead herb, rhizoma alismatis, Monochoria vaginalis, Monochoria korsakowii etc. are to sulfonylurea（Especially bensulfuron-methyl,
Pyrazosulfuron）The anti-drug resistance of herbicide constantly strengthens, the sealing effect of broad leaved weed is declined rapidly, and the sulfonylurea is removed
Careless agent can not have been met the need for rice terrace prevents and kill off broad leaved weed.Therefore a kind of efficient preventing and treating weeds in paddy field of research and development is needed
Herbicide, the increasingly serious Weed infestation to tackle.
The content of the invention
In view of this, it is an object of the present invention to provide a kind of Herbicidal composition for paddy fields and its floating particle system being made
Agent so that Herbicidal composition for paddy fields of the present invention can be miscellaneous to grassy weed, broad leaved weed and Cyperaceae in rice terrace
The preventing and treating of grass has synergistic effect.
To realize the purpose of the present invention, the present invention is adopted the following technical scheme that：
A kind of Herbicidal composition for paddy fields, it is made up of penoxsuam and cyhalofop-butyl, the penoxsuam and cyhalofop-butyl
Weight ratio be 1:20-20:1.
Herbicidal composition for paddy fields of the present invention can be made into a variety of formulation of herbicide, by the rice field that weight percentage is 1-90%
Auxiliary material composition is subjected on Herbicidal combinations and pesticidal preparations.Preferably, the percentage composition of the Herbicidal composition for paddy fields is
10-85%.Auxiliary material of the present invention includes wetting agent, dispersant, disintegrant, adhesive, thickener, emulsifying agent, solvent, filled out
Material and water etc..
Specifically, the formulation of herbicide can be wettable powder or water dispersible granules etc..In wettable powder, rice
The weight percentage of field weeding composition is 20-80%.In water dispersible granules, the weight percentage of Herbicidal combinations is
15-85%.Wettable powder is to use pesticide original medicine, inert filler and a certain amount of auxiliary agent, is adequately mixed in proportion after crushing,
Reach the formulation of certain particle size.From in shape, and pulvis indistinction, but be due to add wetting agent, dispersant etc.
Auxiliary agent, can be readily wetted by water after being added in water, disperse, forming suspension, sprayable administration.Water dispersible granules be also known as dry flowable,
Water hangs property granule, and certain auxiliary agent and carrier is added by pesticide original medicine, and size-reduced, granulation, dry, screening are made.Enter after water,
Automatic disintegration, is dispersed into suspension.It is the novel form grown up on the basis of wettable powder and suspending agent, and it has
Good dispersion, good fluidity, suspensibility height, good stability, non-dusting, it is easy to use the features such as, production method has spraying
Granulation, suspension type granulation, extruder grain, high intensity mixing granulation, fluidized bed prilling etc..
Wherein, preferably, the invention also discloses a kind of floating particle preparation for paddy field weeding, it is by above-mentioned
Acceptable auxiliary material composition on Herbicidal composition for paddy fields and pesticidal preparations, the Herbicidal composition for paddy fields accounts for floating particle preparation
Percentage by weight is 10-72%.Said preparation is present in the form of floating particle agent.Floating particle agent is by pesticide original medicine, helped
The granular preparation that agent and the size-reduced granulation of carrier are processed.It is excellent that granule has good directionality, non-dusting, public hazards small etc.
Point.Prilling process has infusion process, coating method, kneading method, fluidized bed prilling method, spray granulation, rotation comminution granulation etc..
It is described in the currently preferred technical scheme for preparing floating particle agent, wettable powder or water dispersible granules
Auxiliary material include wetting agent, dispersant, disintegrant, filler（Carrier）Etc. component.
Wherein, preferably, wetting agent of the present invention is selected from alkyl sulfate, alkylbenzenesulfonate, alkyl sulfonic acid
Salt, alkylnaphthalene sulfonate, pull open powder, moistening penetrant t, sorbitan fatty acid ester APEO, alkyl naphthalene formaldehyde contracting
Compound, Morwet EFW, SP-2845W.
Dispersant of the present invention may be selected from lignosulfonates, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl
Amido taurate, polycarboxylate, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, carboxymethyl cellulose, sodium tripolyphosphate, alkyl
Naphthalene sulphonate, Morwet D-425, SP-2836.
Disintegrant of the present invention be selected from urea, sodium carboxymethylcellulose, ammonium sulfate, sodium sulphate, silica gel, bentonite,
PEG、SF-04、SHX。
Filler of the present invention is selected from kaolin, bentonite, clay, diatomite, white carbon, precipitated calcium carbonate, concave convex rod
Soil.
Penoxsuam is translocated herbicide, through cauline leaf, young shoot and Root Absorption, is conducted by xylem and bast
To separate living tissue, suppress plant strain growth, make growing point chlorosis, 7 ~ 14d terminal buds redden after processing, necrosis, plant is dead within 2 ~ 4 weeks；
This agent is strong inhibitor of acetolactate synthetase, and medicament is presented slower, needs certain time weeds just gradually dead.Penoxsuam
Direct-sowing dry field, direct-sowing rice, rice seedling bed and rice transplanting, rice transplanting cultivation field suitable for paddy rice.Consumption is 15 ~ 30g a.i./hm2.
Before direct-sowing dry Tian Yuya or after pouring water, water direct seeding seedling is applied in after seedling early stage；Then 5 ~ 7d dispensers after rice transplanting are cultivated in rice transplanting.Dispenser
Mode can use spraying or mix native processing.Penoxsuam be rice field broad-spectrum herbicide, can effectively prevent and kill off barnyard grass (including to enemy
Barnyard grass, dichloro quinolinic acid and anti-acetyl-CoA carboxylase have the barnyard grass of resistance), moleplant seed and annual sedge weed, it is and right
Effectively, different stamen flower (Heteranthera limosa), carp intestines (Eclipta prostrata), field are given birth in such as natural pond to numerous broad leaved weeds
Cyanines (Sesbania exaltata), ring flower (Commelina diffusa), Monochoria vaginalis (Monochoria vaginalis)
Deng.Lasting period is up to 30~60 days, and a drug can control full season Weed infestation substantially.Meanwhile, it can also prevent and kill off rice field moderate resistance
Bensulfuron-methyl weeds, and there is residual activity to many broad-leaveds and sedge weed and barnyard grass etc., it is current herbicide for rice field
Middle herbicide controlling spectrum most wide kind.The action target of sulfonyl urea compound herbicide is branched-chain amino acid synthesis in catalysis plant
The acetolactate synthestase of first step reaction（ALS or AHAS）, the enzyme suppressed by sulfonyl urea compound, branched-chain amino acid
Biosynthesis be obstructed, will cause protein synthesize stopping, making DNA and the essential material of other mitosis synthesis
It is destroyed, cause the growth of plant roots, stem, leaf to be suppressed, so that plant growth is badly damaged until dead.
Cyhalofop-butyl belongs to aryloxyphenoxypropionic class herbicide.Rice terrace selective herbicide, can only make cauline leaf process,
Bud pre-treatment is invalid, mainly prevents and kill off barnyard grass, the grassy weed such as moleplant seed.During cyhalofop-butyl is fragrant phenoxy phenoxy propionic acid herbicide
The only kind to paddy rice with tight security, is also uptake and translocation herbicide as such other kind.By plant
The blade and leaf sheath of body absorb, bast conduction, accumulate the meristem zone in plant, resist acetyl-CoA carboxylase
（ACCase）, make aliphatic acid synthesis stopping, the growth division of cell can not be normally carried out, the destruction of the structure containing fat such as membranous system, most
After cause Plant death.Weeds Mortality Ratio is absorbed into from cyhalofop-butyl slower, generally require 1-3 weeks.Weeds are after administration
Symptom it is as follows：The tender shoots atrophy of four leaf stage, causes death.The old leaf of two leaf stage is changed very little, and keeps green.Paddy rice（Transplant
With it is live）, there is excellent selectivity to paddy rice etc., selectivity is based on different accretion rates, in paddy rice body, cyhalofop-butyl
It can be degraded quickly as to two inactive acid-state of acetyl-CoA carboxylase, thus there is the security of height to paddy rice.Because of it
Degraded in soil and in typical paddy field water rapid, therefore to succession crop safety.It is mainly used in preventing and kill off important grass family miscellaneous
Grass.Cyhalofop-butyl is efficient to moleplant seed, there is certain preventive effect to low age barnyard grass, can also prevent and kill off, lady's-grass, Paspalum distichum, green bristlegrass,
Eleusine indica, amur foxtail etc..It is invalid to sedge weed and broad leaved weed.
Each active component is due to composition, structure, the difference of physicochemical property after different herbicidal activity component mixing so that each
Synergy between active component is typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly
Effect is cooperated between different material, its effect produced is more than the sum total of each composition effect；And summation action is exactly it
The effect of generation is equal to the sum total of each composition effect；When antagonism refers to that two kinds of materials act on living organism, a kind of thing
Matter disturbs the effect of another material, or the effect of interfering with an opponent each other, the phenomenon for declining general effect.
The present invention is according to Sun Yunpei（Sun Y-P）Method, calculates co-toxicity coefficient and evaluates penoxsuam and cyhalofop-butyl respectively
Weight ratio is 1:10-20:Co-toxicity coefficient is all higher than 120 when 1, shows being used in mixed way with notable synergistic effect for the two.Therefore,
The present invention provides the Herbicidal combinations in preventing and treating rice field grassy weed, sedge weed and broadleaf weed herbicide is prepared
Application.
The field control effectiveness test result of Herbicidal composition for paddy fields of the present invention is shown：In less than two single premises for applying dose
Under, significantly improve preventive effect.As can be seen here, the Herbicidal composition for paddy fields and its preparation that the present invention is provided greatly reduce dosage
And times for spraying, have the advantages that safe efficient, environmentally friendly, and delayed the generation of herbicide resistance.
From above technical scheme, Herbicidal composition for paddy fields and its preparation of the present invention are with penoxsuam and cyanogen fluorine
Careless ester compounding delays the generation of herbicide resistance, while miscellaneous to rice field as active ingredient, the two mutual supplement with each other's advantages, synergy
Grass has synergistic effect, greatly reduces dosage and times for spraying, has the advantages that safe efficient, environmentally friendly, can answer extensively
In preventing and treating for rice field crop smothering.
Embodiment
The embodiment of the invention discloses a kind of Herbicidal composition for paddy fields and its preparation.Those skilled in the art can use for reference this
Literary content, is suitably modified technological parameter realization.In particular, all similar replacements and change are to art technology
It is it will be apparent that they are considered as being included in the present invention for personnel.The product and method of the present invention is by preferable
Embodiment is described, and related personnel substantially can be not departing from present invention, in spirit and scope to production as described herein
Product are modified or suitably change is with combining, to realize and apply the technology of the present invention.
Herbicide of the present invention has wider herbicide controlling spectrum, including grassy weed, sedge weed and broad leaved weed, such as barnyard grass
Grass, nutgrass flatsedge, difformed galingale herb, buttercup, moleplant seed, annual bluegrass, lady's-grass, green bristlegrass, nutgrass flatsedge, Monochoria korsakowii, angustifolia arrowhead herb, water chestnut, eye
It is dish, knotweed, mexicana, beggar-ticks, chickweed, rhizoma alismatis, needle spikesedge herb, Chinese celery, Japan's Fischer grass, flat bar scirpus triqueter, Procumbent Falsepimpernel, eleusine indica, wealthy
Leaf Brachiaria Griseb.Asiatic plantain, three-coloured amaranth, piemarker, black nightshade have good preventive effect.Herbicidal combinations of the present invention can be used for rice field resistance one
Year raw and perennial harmful plants growth, has very wide herbicide controlling spectrum, grassy weed, the Cyperaceae that can prevent and kill off rice terrace are miscellaneous
Grass, broad leaved weed.Cyperaceae Herba Cyperi Glomerati, difformed galingale herb, cyperus iria, miliary fimbristylis herb, the rhizome of nutgrass flatsedge, kyllinga brevifolia, fescue, firefly
The weeds such as Lin, flat stalk Fischer grass, Japan's Fischer grass.The herbicide can also prevent and kill off the short arrowhead of direct seading rice Tanaka, moleplant seed, barnyard grass,
The weeds such as Monochoria korsakowii, mexicana, rhizoma alismatis, chickweed, knotweed and Chinese celery.
When each active component of the invention is co-administered, there is superior super addition.The activity of conjugate, which is higher than, to be applied
The expection summation of each herbicidal activity.Synergy causes utilization rate reduction, prevents and treats broad leaved weed, the grass family of more wide range
Weeds and sedge, herbicide effect work faster, the duration it is longer, by applying only once or several times to noxious plant
Preventing and treating more preferably and the administration phase that can widen.Above-mentioned property and advantage are for putting into practice control of weeds to keep being not present in rice field
Undesired competitive plant, so as to ensure that rice yield level is necessary from quality and number of angle.It is just described
For property, these states of the art of new Herbicidal combination significantly beyond this area.
The present invention is expanded on further with reference to embodiment.
Embodiment 1：10% penoxsuam cyhalofop-butyl floating particle agent
1 part of penoxsuam, 9 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, floatability bead 25
Part, 5 parts of organoclay, talcum powder：Complement to 100 parts.
Above-mentioned each active ingredient and raw material are sufficiently mixed, then granulates, dry, sieving obtains floating particle agent.
Embodiment 2：30% penoxsuam cyhalofop-butyl floating particle agent
20 parts of penoxsuam, 10 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, floatability bead
25 parts, 5 parts of organoclay, talcum powder：Complement to 100 parts.
Above-mentioned each active ingredient and raw material are sufficiently mixed, then granulates, dry, sieving obtains floating particle agent.
Embodiment 3：70% penoxsuam cyhalofop-butyl floating particle agent
40 parts of penoxsuam, 30 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, floatability bead
25 parts, 5 parts of organoclay, talcum powder：Complement to 100 parts.
Above-mentioned each active ingredient and raw material are sufficiently mixed, then granulates, dry, sieving obtains floating particle agent.
Embodiment 4：12% penoxsuam cyhalofop-butyl floating particle agent
2 parts of penoxsuam, 10 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, floatability bead
25 parts, 5 parts of organoclay, talcum powder：Complement to 100 parts.
Above-mentioned each active ingredient and raw material are sufficiently mixed, then granulates, dry, sieving obtains floating particle agent.
Embodiment 5：33% penoxsuam cyhalofop-butyl floating particle agent
3 parts of penoxsuam, 30 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, floatability bead 25
Part, 5 parts of organoclay, talcum powder：Complement to 100 parts.
Above-mentioned each active ingredient and raw material are sufficiently mixed, then granulates, dry, sieving obtains floating particle agent.
Embodiment 6：21% penoxsuam cyhalofop-butyl wettable powder
20 parts of penoxsuam, 1 part of cyhalofop-butyl, 3 parts of penetrant t of moistening, 7 parts of calcium lignosulfonate, precipitated calcium carbonate 69
Part.
Above-mentioned each active ingredient and raw material are sufficiently mixed, air-flow crushing obtains wettable powder.
Embodiment 7：40% penoxsuam cyhalofop-butyl wettable powder
30 parts of penoxsuam, 10 parts of cyhalofop-butyl, 3 parts of K12,6 parts of carboxymethyl cellulose, 51 parts of kaolin.
Above-mentioned each active ingredient and raw material are sufficiently mixed, air-flow crushing obtains wettable powder.
Embodiment 8：15% penoxsuam cyhalofop-butyl water-dispersible granule
5 parts of penoxsuam, 10 parts of cyhalofop-butyl, 3 parts of Nekal BX, 6 parts of Dispersant MF, 1 part of urea, 75 parts of white carbon.
Above-mentioned each active ingredient and raw material are sufficiently mixed, crushed, mediates, granulate, is dried, screening obtains moisture
Shot agent.
Embodiment 9：45% penoxsuam cyhalofop-butyl water-dispersible granule
30 parts of penoxsuam, 15 parts of cyhalofop-butyl, 2 parts of Morwet D-425,4 parts of Morwet EFW, 49 parts of kaolin.
Above-mentioned each active ingredient and raw material are sufficiently mixed, crushed, mediates, granulate, is dried, screening obtains moisture
Shot agent.
Embodiment 10：75% penoxsuam cyhalofop-butyl water-dispersible granule
55 parts of penoxsuam, 20 parts of cyhalofop-butyl, 3 parts of SP-2836,6 parts of SP-2845W, 16 parts of precipitated calcium carbonate.
Above-mentioned each active ingredient and raw material are sufficiently mixed, crushed, mediates, granulate, is dried, screening obtains moisture
Shot agent.
Application test：Toxicity Determination is tested
In order to further appreciate that the synergy of penoxsuam and cyhalofop-butyl mixture to weeds, tests below is carried out to five fluorine
The mixture of sulphur grass amine and cyhalofop-butyl herbicide has carried out recipe determination.Test method：Series proportioning is set according to mixture purpose,
Each proportioning sets 5-7 concentration gradient.Weeds are cultivated standby to the 2-3 leaf phases.After the weeds cauline leaf process for the number of finishing, meter
Preventive effect is calculated, concentration EC in suppressing then is calculated with least square method50（95% confidential interval）, then poison is altogether with the abundant method calculating of Sun Yun
Number（CTC）.
Survey toxicity index（ATI）=（Standard agent EC50/ reagent agents EC50）×100
Theoretical toxicity index（TTI）=（A percentage composition in A toxicity index × mixture）+（B in B toxicity index × mixture
Percentage composition）
Co-toxicity coefficient（CTC）=[mixture surveys virulence coefficient（ATI）/ mixture theory virulence coefficient（TTI）]×100
Co-toxicity coefficient（CTC）>=120 show as synergistic effect；Co-toxicity coefficient（CTC）≤ 80 show as antagonism；80<It is malicious altogether
Coefficient（CTC）<120 show as summation action.
Testing result is shown in Table 1.
The synergy of the penoxsuam of table 1 and cyhalofop-butyl to grassy weed, sedge weed and broad leaved weed is surveyed
It is fixed
From the field control effectiveness test of table 1, it is less than the premise of single amount of application in each effective ingredient consumption of herbicide of the present invention
Under, grassy weed is significantly improved with the preventive effect and integrated control effect of, sedge weed and broad leaved weed, this and indoor virulence
Determination test result is consistent, with obvious synergistic effect.
The penoxsuam of table 2 and cyhalofop-butyl different dosage forms are prevented grassy weed, sedge weed and broad leaved weed
Effect
From the field control effectiveness test of table 2, Herbicidal composition for paddy fields of the present invention is in the case of active ingredient identical, different dosage forms
Different with the preventive effect and integrated control effect of broad leaved weed with, sedge weed to grassy weed, the preventive effect of floating particle agent is more
It is high.
Embodiment is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that being led for this technology
For the those of ordinary skill in domain, under the premise without departing from the principles of the invention, can also to the present invention carry out it is some improvement and
Modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (2)
1. a kind of Herbicidal composition for paddy fields, it is characterised in that be made up of penoxsuam and cyhalofop-butyl, the penoxsuam
Weight ratio with cyhalofop-butyl is 1:20-20:1.
2. a kind of floating particle preparation for paddy field weeding, it is characterised in that combined by the paddy field weeding described in claim 1
Acceptable auxiliary material is constituted on thing and pesticidal preparations, and the percentage by weight that the Herbicidal composition for paddy fields accounts for floating particle preparation is
10-72%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110999909A (en) * | 2020-01-16 | 2020-04-14 | 河南邦君农业科技有限公司 | Efficient paddy field weeding composition |
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