CN102342286A - Weeding composition - Google Patents
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- CN102342286A CN102342286A CN2011103668321A CN201110366832A CN102342286A CN 102342286 A CN102342286 A CN 102342286A CN 2011103668321 A CN2011103668321 A CN 2011103668321A CN 201110366832 A CN201110366832 A CN 201110366832A CN 102342286 A CN102342286 A CN 102342286A
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- penoxsuam
- herbicidal combinations
- pendimethalin
- trefanocide
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Abstract
The invention relates to a weeding composition, relating to the technical field of plant protection compositions, which can be used for resisting harmful plants, such as harmful plants in crop plants, and contains compositions of pendimethalin or trifluralin and penoxsulam as active ingredients. The weeding composition is characterized by containing the active ingredients, namely pendimethalin or trifluralin and penoxsulam. The weight ratio of the pendimethalin to the penoxsulam is 100:1 to 1:100. The weight ratio of the trifluralin to the penoxsulam is 100:1 to 1:100. The mass percentage content of the pendimethalin and the penoxsulam in the composition is 2-80%, preferably 5-60%. The mass percentage content of the trifluralin and the penoxsulam in the composition is 2-80%, preferably 5-60%. The weeding composition is used for preventing and curing weeds in useful crops and weeds in cotton fields.
Description
Technical field
Herbicidal combinations of the present invention relates to the plant protection composition technical field, and said plant protection composition can be used for resisting noxious plant, for example the noxious plant in the crop plants.It composition that comprises Pendimethalin or trefanocide and penoxsuam is as active substance.
Background technology
Cotton is China's main economic crops, and effectively controlling the cotton field weeds is one of important measures that improve output of cotton and quality.The weeds in cotton field are of a great variety, win honour for, strive fertilizer with crop, strive water, but bursting mulch film also is the key factor that causes crop yield loss.
Pendimethalin belongs to dinitroaniline herbicide.Pendimethalin is to have gathered the selective herbicide of cell division inhibitor effect through suppressing microtubule.Pendimethalin is a kind of outstanding dry crop selective herbicide, can be widely used in various crop field weedings such as corn, soybean, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables.Pendimethalin is used to prevent and kill off annual gramineous weed, part broad leaved weed and nutgrass flatsedge.Pendimethalin is better than broad leaved weed to the preventive effect of grassy weed, to the perennial weed weak effect.The chemical name of Pendimethalin is N-(1-ethyl propyl)-3,4-dimethyl-2, and the 6-dinitroaniline, and its structure can be expressed as:
Trefanocide belongs to dinitroaniline herbicide.Trefanocide is a processing soil treatment agent before the selectivity bud, and mainly coleoptile and the plumular axis through weeds absorbs.Invalid to the weeds of being unearthed.Broad leaved weed to grass family and part small-sized seed is effective, and the lasting period is long.Trefanocide is applicable to cotton, soybean, rape, peanut, potato, winter wheat, barley, sunflower, carrot, sugarcane, tomato, eggplant, capsicum, cabbage, cauliflower, celery and orchard, mulberry field, crop such as melon, is used to prevent and kill off annual gramineae and broad-leaved section weeds such as barnyard grass grass, lady's-grass, eleusine indica, moleplant seed, eragrostis cilianensisLink, amaranth, lamb's-quarters, kitchen garden, chickweed.The chemical name of trefanocide is: 2, and 6-dinitro-N, N-di-4-5-trifluoromethylaniline.And its structure can be expressed as:
Penoxsuam is a translocated herbicide, absorbs through cauline leaf, young shoot and root system, and amine can be adsorbed rapidly by soil.Conduct to meristematic tissue through xylem and phloem, suppress plant strain growth, make the growing point chlorosis, handle back 7-14d terminal bud and redden, necrosis, 2-4 week plant is dead; This agent is strong inhibitor of acetolactate synthetase, and medicament appears slower, needs the certain hour weeds just dead gradually.Penoxsuam is the rice field broad-spectrum herbicide, can effectively prevent and kill off barnyard grass grass, moleplant seed and annual sedge weed, and effective to numerous broad leaved weeds, gives birth to different stamen flower, carp intestines, sesbania, ring flower, Monochoria vaginalis etc. like the natural pond.The chemical name of penoxsuam be 2-(2,2-difluoro ethoxy)-N-(5,8-dimethoxy (1,2,4) triazole-(1,5-C) pyrimidine-2-base)-6-trifluoromethyl-benzene sulfanilamide (SN).And its structure can be expressed as:
Mostly the weed killer herbicide that use in the cotton field is soil processing herbicide; Be main mainly with Pendimethalin, trefanocide, Acetochlor; Along with the long-time continuous of weed killer herbicides such as Pendimethalin is used; Its weeds that develop immunity to drugs are increased year by year; And because weed killer herbicides such as Pendimethalin are to the selectivity of weeds; Cause susceptible weeds quantity to descend, and the rising of quantity such as insensitive weeds black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops, cause that obvious variation has taken place weed community.
The purpose of this research is that to solve present cotton field soil processing herbicide single, and herbicidal effect descends, and the problem that increases the weight of year by year of weeds pesticide resistance and weed community succession.Therefore need a kind of new cotton field weed killer herbicide of exploitation, can improve and kill careless effect, delay weeds and develop immunity to drugs.
A kind of method of possible improvement herbicide application characteristic can be that other materials of active substance and one or more are combined.Yet for the various active material was used in combination, it is much that the incompatible and biological incompatible phenomenon of physics takes place, for example reaction between mix preparation instability, active substance decomposition or the active substance.
Summary of the invention
The present invention seeks to provides a kind of Herbicidal combinations to above-mentioned weak point; It is a kind of Herbicidal combinations that is used for the cotton field; Contain Pendimethalin or trefanocide and penoxsuam, be used for efficient, economic, the safe herbicidal composition of cotton field controlling weeds.
The discovery that the present invention is surprised, combine the insensitive weeds black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops etc. to the cotton field of Pendimethalin or trefanocide and penoxsuam have particularly advantageous action characteristic, can improve preventive effect, delaying drug resistance.
Herbicidal combinations of the present invention takes following technical scheme to realize:
A kind of Herbicidal combinations contains active ingredient Pendimethalin or trefanocide and penoxsuam, and wherein the weight ratio of Pendimethalin or trefanocide and penoxsuam is 1:100 to 100:1, preferred 1:50 to 50:1, more preferably 1:20 to 20:1.
In the said Herbicidal combinations, the quality percentage composition that Pendimethalin or trefanocide and penoxsuam account in the Herbicidal combinations is 2%-80%, preferred 5%-60%.
Said Herbicidal combinations formulation is wetting powder, water dispersible granules, coated granule, suspending agent, aqueous emulsion, microcapsule formulations, missible oil, granule.
Described Herbicidal combinations is used for preventing and treating the weeds of useful crop.
Described Herbicidal combinations is used to prevent and treat cotton Tanaka's weeds.
Described Herbicidal combinations is used to prevent and treat weeds such as cotton Tanaka's black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops.
Specific embodiments
In agricultural management, the weeds that the cover crop antagonism suppresses plant growth are problems of constantly reappearing with other plant.It is single to the objective of the invention is to solve present cotton field processing soil treatment agent, and herbicidal effect descends, and the problem that increases the weight of year by year of weeds pesticide resistance and weed community succession.The complex preparation of research uses before cotton is broadcast preceding or broadcasts the back seedling, can prevent and kill off weeds such as most of unifacial leaves and broadleaf weed, particularly black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops simultaneously.
The present invention seeks to provides a kind of Herbicidal combinations to above-mentioned cotton field Herbicid resistant problem.Herbicidal combinations of the present invention contains Pendimethalin or trefanocide and penoxsuam, its objective is in order to improve herbicidal effect, reduces the weeds pesticide resistance, particularly reduces the pesticide resistance of weeds such as black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops.
A kind of Herbicidal combinations of the present invention; Contain active ingredient Pendimethalin or trefanocide and penoxsuam; Wherein the weight ratio of Pendimethalin or trefanocide and penoxsuam is 1:100 to 100:1, preferred 1:50 to 50:1, more preferably 1:20 to 20:1.
In the said Herbicidal combinations, the quality percentage composition that Pendimethalin or trefanocide and penoxsuam account in the Herbicidal combinations is 2%-80%, preferred 5%-60%.
In practice, composition of the present invention is known or be used for the different auxiliary agent of industry and the preparaton of carrier is used as comprising in the industry.Therefore composition of the present invention can be configured to granule (and; Compatibly; As the particle of stabilisation, as described below), as granular water-dispersible agent; As missible oil; As powder or pulvis, but as flowable, as solution; As suspending agent or emulsion, or as controlled release forms such as micro-capsule.These preparatons can comprise 0.5% to 95% or more active component.The character that depends on preparaton, application equipment and plant to be controlled for the optimised quantity of any given compound.
Wetting powder be in water or other liquid in the finely divided particle that is easy to disperse.Said particle comprises the active component that is retained in the solid matrix.Typical solid matrix comprises carclazyte, and kaolin, tripoli and other are easy to wetting organic or inoganic solids.Wetting powder comprises about 5% to about 95% active component usually and adds a spot of wetting agent, dispersant or emulsifier.
Missible oil be in water or other liquid in dispersible homogeneous liquid composition and can be fully perhaps can also comprise liquid-carrier forms said liquid-carrier such as water, dimethyl sulfoxide (DMSO) with the liquid or solid emulsifier by reactive compound; N-Methyl pyrrolidone, ethylene glycol, polypropylene glycol; Paraffin, aromatic hydrocarbons; Aliphatic hydrocarbon, olive oil; Castor oil, linseed oil, tung oil; Sesame oil, corn oil, peanut oil; Cottonseed oil; Soybean oil, rapeseed oil and cupu oil, fatty acid ester; Ketone such as cyclohexanone; The 2-heptanone, isophorone and 4-hydroxy-4-methyl-2 pentanone and alcohols such as methyl alcohol; Cyclohexanol, decyl alcohol and oxolane alcohol.In use, these concentrates are dispersed in water or other liquid also usually as spray application to pending zone.The amount of active component can concentrate about 0.5% to about 95% scope.
Particle assembling preparation comprises extrudate and relative thick particle and the common zone that is applied to needs inhibition plant without dilution.The typical carrier that is used for granular formulations comprises fertilizer; Sand; Bleaching earth; Attapulgite clay; Bentonite; Imvite; Vermiculite; Perlite; Calcium carbonate; Brick; Float stone; Pyrophyllite; Kaolin; Dolomite; Plaster; Wood powder; Levigate corncob; Levigate peanut shell; Sugar; Sodium chloride; Sodium sulphate; Sodium silicate; Boratex; Magnesia; Mica; Iron oxide; Zinc oxide; Titanium oxide; Antimony oxide; Ice crystal; Gypsum; Diatomite; Calcium sulphate maybe can be with the organic or inorganic material of reactive compound coating with other adsorption activity compounds.Particularly suitable is the fertiliser granulates carrier.The graininess preparaton comprises about 5% to about 25% active component usually.Adhesive such as dextrin, glue or synthetic resin.Compatibly, said graininess preparaton can be the composition of stabilisation, and it comprises at least a granule shape matrix material and comprises at least a Pendimethalin or trefanocide and penoxsuam.Said granular base material can be one of above-mentioned typical carrier and/or can be for example urea/formaldehyde fertilizer, urea, potassium chloride, ammonium compounds, phosphorus compound, sulphur, similar nutrient for plants and trace element and other mixtures or composition of fertilizer.Pendimethalin or trefanocide and penoxsuam can spread all over granule equably or can after granule forms, soak into through spraying or be adsorbed on the particulate substrate.
Pulvis is the free mobility mixture of active component and the thin solid that looses, said thin solid such as the talcum of loosing, and clay, flour and other act as the organic and inoganic solids of dispersant and carrier.
Microcapsules typically is droplet or the particle that is encapsulated in the active substance in the inertia porous shell, and it allows entrapped material to be discharged in the surrounding environment with in check speed.Through the droplet sealed typically diameter be about 1 to 50 micron.Entrapped liquid typically constitute capsules weight about 50% to 95% and except that reactive compound, can also comprise solvent.The micro-capsule granula normally has the porous particle of the perforated membrane in sealing particle aperture, and active component is retained in the particle hole with liquid form.Granule typically diameter at 1 millimeter to 1 centimetre, preferably in 1 to 2 millimeter scope.Granule through extrude, reunion or air prilling form or formation naturally.The instance of such material is vermiculite, sintered clay, kaolin, attapulgite clay, sawdust and graininess carbon, shell or membrane material comprise natural or synthetic rubber, fibrous material, SB, polyacrylonitrile, polyacrylate, chrysanthemum ester, polyamide, polyureas, polyurethane and starch xanthate.
Suspending agent can be made up of the moisture or non-aqueous suspension of the insoluble active ingredient solid particle that segments.Suspending agent can prepare through ball milling or pearl mill active ingredient and optional one or more dispersants in suitable medium, produces a kind of fine grain compound suspending agent.In composition, one or more wetting agents can be comprised,, also suspension reagent can be comprised in order to reduce the speed of particles settling.In addition, active ingredient can be dry grinded, and is added to then in the water that contains mentioned reagent, produces desired end product.
In the preparation process for preparation, adding suitable surface active cpd is to have good emulsifying, dispersion and wetting nonionic, cation and anion surfactant and surfactant mixture thereof.Commonly used has: polyethoxy alcohol; Polyethoxy alkylphenol, polyethoxy fatty acid esters of sorbitan, sulfonyl succinic acid dialkyl ester; The alkyl sodium sulfate ester; Alkylbenzenesulfonate, organosiloxane, N; N-dialkyl group taurate; Lignosulfonates, naphthalenesulfonate formaldehyde condensation compound, polycarboxylate and polyoxyethylene/polyoxypropylene block copolymers.The conventional surfactant that uses also is applicable to preparation Herbicidal mixture of the present invention in the preparation processing engineering.If use, these reagent comprise 0.1% to 15% of preparaton weight usually.
Also add an amount of thickener accordingly in order to increase toughness in the aqueous liquid preparation, xanthans for example, Magnesiumaluminumsilicate etc.The concentration of thickener generally accounts for the 0.02-2% of preparation total amount.
In preparation of the present invention, can also add the reduction water slurry, the material of aqueous emulsion fusing point, that is can prevent the material (antifreeze) that preparation freezes at low temperatures.The normally water-soluble salt of this type material is suitable for reducing the water chill point of aqua among the present invention or emulsion, for example sodium chloride, potassium chloride, ammonium chloride, ammonium nitrate, sodium nitrate and their mixture.Water miscible glycol also is suitable, for example ethylene glycol, propane diols, diethylene glycol (DEG), glycerine and their mixture.The working concentration of this salt and glycol in each case, is the 0.5%-10% of complete aqueous compositions weight.
Though the commercially available prod is formulated into concentrate, the end user generally can use the preparation of dilution.Composition also can comprise for example for example silicone oil, preservative, viscosity modifier, adhesive, tackifier of vegetable oil or epoxidized vegetable oil (epoxidation cocoa butter, rapeseed oil or soya-bean oil), defoamer of other additives such as stabilizing agent, also has fertilizer or other active components.
Composition of the present invention can be controlled important weeds on a large amount of agronomy; Comprise unifacial leaf and broadleaf weed, like knotgrass, setaria, Europe sinapsis alba genus, Solanum, barnyard grass grass, false jowar, Rottboellia exaltata genus, Cyperus, abutilon, chrysanthemum harvest spp, Xanthium, Amaranthus, sweet potato genus, Bedstraw, Viola and Veronica.The present composition is specially adapted to prevent and treat the weeds present compositions such as black nightshade in the cotton field, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops.The crop of useful plants will also be understood that to be to comprise the crop that obtains weed killer herbicide or classes of herbicides are had tolerance because of the breeding of routine or gene engineering method.
Consumption can change on a large scale, depends on the crop that composition is used, with composition of the present invention through before the seedling or postemergence application in the location of needs control, be used to control the undesired plants growth.Therefore, in one embodiment, composition of the present invention is used with the preemergence application method.In further embodiment, Herbicidal combinations of the present invention is used with the postemergence application method.
The amount of application of composition of the present invention depends on the particular type of weeds to be controlled, degree and the time and the application process of needs control.Usually, the amount of application that composition of the present invention can 0.001kg/ha to 5.0kg/ha is used, based on the total amount meter of the active component in the composition (Pendimethalin or trefanocide and penoxsuam).The amount of application of about 0.001kg/ha to 3.0kg/ha is preferred, and the amount of application of about 0.01kg/ha to 1.0kg/ha is particularly preferred.The consumption that attention is used in following embodiment is the greenhouse consumption and is lower than those that are applied to big Tanaka usually, because herbicidal effect is exaggerated under such condition.
Said compound of the present invention can while or sequential application.If give in succession, can any order in the time interval that is fit to, give said composition, for example within the time that gives first kind of composition and the time that gives last a kind of composition, be no more than 24 hours.Compatibly, all components gave in several hours time period, as 1 hour.If give said composition simultaneously, can be respectively or mix thing or the preformulation mixture of some composition of mixing as the preformulation mixture of all components or conduct and residual components bucket gives as bucket.In one embodiment, mixture of the present invention or composition can be that seed treatment is applied to crop at the plantation previous crops.
These preparatons can be applied to the zone that needs control through conventional method.The composition of pulvis and liquid for example can be used through working power agent, broom and manual sprayer and the injecting type agent of dusting of dusting.Said preparaton also can be used with pulvis or spraying or through wire rope core dispenser method by aircraft.In order to change or to control positive seeds germinated or unearthed growth of seedlings, can be with pulvis and liquid preparation with soil surface down to the depth profile of not a half inch at soil or through spraying or spray and only be applied to soil surface.Said preparation agents also can be used through adding in the irrigation water.This allows said preparation agents to be penetrated in the soil with irrigation water.The dust composition, particulate composition or the liquid adjustments that are applied to soil surface can pass through usual manner such as the farming of disk facility, and rake operation or married operation are distributed to below the soil surface.
The present invention wherein needing can be used for weeds control in any case.The present invention is particularly suitable for Selective Control weeds such as cotton Tanaka's black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops.Apply or soak into fertiliser granulates on Pendimethalin or the mixture of trefanocide and penoxsuam be particularly advantageous.
The present invention provides the Pendimethalin that comprises herbicidally effective amount and the combination of penoxsuam." weed killer herbicide " expression control or change the compound of plant growing that this paper uses belongs to.Term " " expression can produce amount or the such combination of compounds amount that suppresses or change so a kind of compound of effect to the growth of plant to herbicidally effective amount.Control or change effect and comprise and deviating to what all were grown naturally, for example: cause death, delay, burn leaf, albefaction, dwarfing etc.For example not killed plant normally short and follow and bloom that to be destroyed be noncompetitive.Belong to all physical pieces that " plant " is meant plant, comprise seed, seedling, treelet, root, stem tuber, stalk, leaf and fruit.
Following embodiment only is used to the purpose explained, and said embodiment is intended to must represent and be not intended to limit by any way the present invention as the experiment of all enforcements.Those skilled in the art know, and in the weeding experiment, a large amount of uppity factors can influence single result of experiment and make them not pay attention to.For example said result can depend on environmental factor and change, especially the pH of the quantity of illumination and the water yield, soil types, soil, temperature and humidity.Also have the degree of depth of plantation, the amount of application of single and composite weedicide.The result can change between crop sequences in the crop species scope.
Embodiment
Embodiment 1:11% Pendimethalin+penoxsuam oil-suspending agent
Pendimethalin 10%
Penoxsuam 1%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Xanthans 1%
Bentonite 1%
Soybean oil complements to 100%
Each component such as active component, dispersant, wetting agent and water is even according to the mixed of prescription, after grinding and/or high speed shear, obtain 11% Pendimethalin+penoxsuam oil-suspending agent.
Embodiment 2 22% Pendimethalins+penoxsuam wetting powder
Pendimethalin 2%
Penoxsuam 20%
Lauryl sodium sulfate 2%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
Ratio composition in prescription such as active component, various auxiliary agent and filler is mixed, after ultrafine crusher is pulverized, promptly obtain 22% Pendimethalin+penoxsuam wetting powder.
Embodiment 3 2% Pendimethalins+penoxsuam aqueous emulsion
Pendimethalin 1%
Penoxsuam 1%
N-Methyl pyrrolidone 15%
Calcium dodecyl benzene sulfonate 5%
The newborn 600# 5% of farming
Water complements to 100%
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase; With water-soluble component and the mixed water that gets of water; Under high-speed stirred, oil phase is mixed with water, make 2% Pendimethalin+penoxsuam aqueous emulsion.
Embodiment 4 60% Pendimethalins+penoxsuam water dispersible granules
Pendimethalin 40%
Penoxsuam 20%
Sodium lignin sulfonate 4%
Lauryl sodium sulfate 5%
Urea 5%
Kaolin complements to 100%
Active component, dispersant, wetting agent, disintegrant and filler is even by the mixed of prescription, become wetting powder through comminution by gas stream, add a certain amount of water extrusion again and make material.After dry screened, obtain 60% Pendimethalin+penoxsuam water dispersible granules.
Embodiment 5 51% trefanocide+penoxsuam suspending agent
Trefanocide 50%
Penoxsuam 1%
Methyl naphthalene sulfonate formaldehyde condensate 10%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Each component such as active component, dispersant, wetting agent and water is even by the mixed of prescription, after grinding and/or high speed shear, obtain 51% trefanocide+penoxsuam suspending agent.
Embodiment 6 51% Pendimethalins+penoxsuam suspending agent
Pendimethalin 1%
Penoxsuam 50%
Methyl naphthalene sulfonate formaldehyde condensate 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Each component such as active component, dispersant, wetting agent and water is even by the mixed of prescription, after grinding and/or high speed shear, obtain 51% Pendimethalin+penoxsuam suspending agent.
Embodiment 7 30.3% Pendimethalins+penoxsuam wetting powder
Pendimethalin 30%
Penoxsuam 0.3%
Lauryl sodium sulfate 10%
Sodium lignin sulfonate 5%
White carbon 10%
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 8 10.1% trefanocide+penoxsuam missible oil
Trefanocide 0.1%
Penoxsuam 10%
Dimethyl sulfoxide (DMSO) 10%
Ethoxylated nonylphenol 6%
Calcium dodecyl benzene sulfonate 4%
Solvesso200 complements to 100%
Former medicine behind the complete solvent, is added surfactant, and promptly gets missible oil through stirring in solvent.
Embodiment 9 80% Pendimethalins+penoxsuam wetting powder
Pendimethalin 60%
Penoxsuam 20%
Lauryl sodium sulfate 3%
Sodium lignin sulfonate 3%
White carbon 5%
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 10 45% Pendimethalins+penoxsuam aqueous emulsion
Oil phase:
Pendimethalin 30%
Penoxsuam 15%
Methyl oleate 38%
Polystyrene 3.7%
Water:
Xanthans 0.07%
The sodium salt 1% of the naphthalene sulfonic acids-formaldehyde condensation products of sulfonation
Bactericide 0.2%
Water complements to 100%
Pendimethalin and penoxsuam are dissolved in the methyl oleate, add polystyrene and obtain oil phase; Component according in the prescription mixes and obtains water; Under agitation oil phase is added water and obtain aqueous emulsion.
Embodiment 11 21% Pendimethalins+penoxsuam wetting powder
Pendimethalin 20%
Penoxsuam 1%
Sodium lignin sulfonate 4%
NaLS 2%
The silicic acid 1% of high degree of dispersion
Kaolin complements to 100%
Said components is mixed in proportion, and grind, pulverize, be prepared into wetting powder.
Embodiment 12 21% Pendimethalins+penoxsuam coated granule
Pendimethalin 1%
Penoxsuam 20%
Polyethylene glycol 3%
The silicic acid 1% of high degree of dispersion
Calcium carbonate complements to 100%
In blender, levigate active component evenly is applied to by on the wetting carrier of polyethylene glycol.Can obtain dustless coated granule in this way.
Embodiment 13 45% trefanocide+penoxsuam is extruded granule
Trefanocide 20%
Penoxsuam 25%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 2%
Kaolin complements to 100%
Active component is mixed with auxiliary agent and grind the mixture water-wet.This mixture is extruded, dry in air flow then.
Embodiment 14 32% trefanocide+penoxsuam suspending agent
Trefanocide 30%
Penoxsuam 2%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Soybean oil complements to 100%
Above-mentioned each component is mixed in proportion, and, be prepared into suspending agent through sand milling.
Embodiment 15 35% Pendimethalins+penoxsuam ZC
Atlox?4913 4%
Citric acid 0.05%
Catalyzer 0.1%
Water 13%
Pendimethalin 30%
PAPI 1.35%
Solvesso?200 10%
Atlox4913 16%
Dispersant LFH 0.3%
Defoamer 0.16%
Urea 8.4%
Penoxsuam 5%
Water complements to 100%
With PAPI, the oil phase that Pendimethalin and Solvesso 100 form adds and contains in the aqueous solution of Atlox4913, forms emulsion.Heat then and be incubated under 50oC and added catalyst reaction 2 hours.Obtain the microcapsules of Pendimethalin after the cooling.
Atlox 4913, dispersant LFH, and defoamer, urea, penoxsuam and water mix in proportion, and through sand milling, are prepared into suspending agent.
The microcapsules of the Pendimethalin that obtains is added in the aqueous suspension agent of penoxsuam, and stirring obtains 30% Pendimethalin+5% penoxsuam ZC.
Embodiment 16 25% Pendimethalins+penoxsuam SE
Pendimethalin 10%
Penoxsuam 15%
Solvesso?200 30%
Ethoxylated castor oil 4%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Soybean oil complements to 100%
Pendimethalin is dissolved among the Solvesso 200, adds ethoxylated castor oil, obtain the missible oil of Pendimethalin;
With penoxsuam, fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium, above-mentioned each component mixes in proportion, and through sand milling, is prepared into suspending agent.
The oil phase that will contain Pendimethalin joins in the suspending agent that contains penoxsuam, obtains suspended emulsion.
Embodiment 17 43% trefanocide+penoxsuam ZC
Atlox?4913 4%
Citric acid 0.05%
Catalyzer 0.1%
Water 13%
Trefanocide 33%
PAPI 1.35%
Solvesso?200 10%
Atlox4913 16%
Dispersant LFH 0.3%
Defoamer 0.16%
Urea 8.4%
Penoxsuam 10%
Water complements to 100%
With PAPI, the oil phase that trefanocide and Solvesso 100 form adds and contains in the aqueous solution of Atlox4913, forms emulsion.Heat then and be incubated under 50oC and added catalyst reaction 2 hours.Obtain the microcapsules of trefanocide after the cooling.
Atlox 4913, dispersant LFH, and defoamer, urea, penoxsuam and water mix in proportion, and through sand milling, are prepared into suspending agent.
The microcapsules of the trefanocide that obtains is added in the aqueous suspension agent of penoxsuam, and stirring obtains 33% trefanocide+10% penoxsuam ZC.
Embodiment 18 25% trefanocide+penoxsuam SE
Trefanocide 10%
Penoxsuam 15%
Solvesso?200 30%
Ethoxylated castor oil 4%
Fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium 10%
MODIFIED LIGNOSULPHONATE 5%
Xanthans 1%
Bentonite 1%
Glycerine 5%
Water complements to 100%
Trefanocide is dissolved among the Solvesso 200, adds ethoxylated castor oil, obtain the missible oil of trefanocide;
With penoxsuam, fatty alcohol-polyoxyethylene ether sulfosuccinic acid monoesters disodium, above-mentioned each component mixes in proportion, and through sand milling, is prepared into suspending agent.
The oil phase that will contain trefanocide joins in the suspending agent that contains penoxsuam, obtains suspended emulsion.
The field examination
The pre-treatment of greenhouse pot culture Fa – bud
The sandy loam of soil for preparation used in experiment, and the activity of weeding experiment uses basin alms bowl diameter to be 9.5cm.
Experiment was handled before the greenhouse pot culture method was carried out bud.Carrying out the soil surface spraying one day after in sowing handles; The soup of handling is preparation and the single agent 33% pendimethalin missible oil (Jiangsu Feng Shan group) of embodiment 1-18; 480g/L trifluralin ec (Jiangsu Feng Shan group), 25g/L penoxsuam oil-suspending agent (the safe standing grain in Shanghai group). the dosage of thin up for needing.
After the basin alms bowl of handling leaves standstill 1 day, put into the greenhouse, regularly water the activity of weeding of each repetition of ocular estimate observed and recorded compound after 14-21 days.
With the activity of weeding of hazard of plant symptom (inhibition, deformity, yellow, albefaction) performance degree range estimation compound, 0 expression does not have herbicidal effect or to crop safety, weeds or crop are killed in 100% expression fully.Activity of weeding and crop safety ocular estimate evaluation criterion are seen table 1, and the biological activity determination experiment target of selection is seen table 2.
Table 1 activity of weeding and crop safety ocular estimate evaluation criterion
The weeds kind of table 2 biological activity determination experiment usefulness
The greenhouse pot culture experimental result is seen table 3
Experiment is treated to:
Embodiment 1-18,25ml/ mu
1: 33% pendimethalin missible oil of single agent, 100ml/ mu
Single agent 2: 480g/L trifluralin ec 100ml/ mu
Single agent 3:25g/L penoxsuam oil-suspending agent 100ml/ mu
Blank: CK
Experimental result shows: the Herbicidal combinations that contains Pendimethalin or trefanocide and penoxsuam according to the present invention shows the preventive effect more than 90% to supplying to try weeds under 25ml/ mu dosage; Single agent with Pendimethalin; Single agent of trefanocide; Single agent of penoxsuam is compared, and shows the high activity of weeding to specific weeds.And said composition can optionally be controlled the weeds object under recommended dose, simultaneously to target crop safety.
Activity of weeding is measured the result before the bud of table 3 composition and single agent
The greenhouse pot culture method is carried out-the seedling post processing
Experiment was handled after the greenhouse pot culture method was carried out seedling.After emerging; The cauline leaf of careful processing weeds seedling; The soup of handling is preparation and the single agent 33% pendimethalin missible oil (Jiangsu Feng Shan group) of embodiment 1-18; 480g/L trifluralin ec (Jiangsu Feng Shan group), 25g/L penoxsuam oil-suspending agent (the safe standing grain in Shanghai group). the dosage of thin up for needing.
Activity of weeding and crop safety ocular estimate evaluation criterion are seen table 1, and the biological activity determination experiment target of selection is seen table 2.
The greenhouse pot culture experimental result is seen table 4
Experiment is treated to:
Embodiment 1-18,25ml/ mu
1: 33% pendimethalin missible oil of single agent 100ml/ mu
Single agent 2: 480g/L trifluralin ec 100ml/ mu
Single agent 3:25g/L penoxsuam oil-suspending agent 100ml/ mu
Blank: CK
Experimental result shows: the Herbicidal combinations that contains the happy spirit of two the Sino-Japanese Wars or trefanocide and penoxsuam according to the present invention shows the preventive effect more than 85% to supplying to try weeds under 25ml/ mu dosage; Single agent with Pendimethalin; Single agent of trefanocide; Single agent of penoxsuam is compared, and shows the high activity of weeding to specific weeds.And said composition can optionally be controlled the weeds object under recommended dose, simultaneously to target crop safety.
Activity of weeding is measured the result behind the bud of table 4 composition and single agent
Claims (16)
1. a Herbicidal combinations is characterized in that: contain active ingredient Pendimethalin or trefanocide and penoxsuam.
2. Herbicidal combinations according to claim 1 is characterized in that: contain active ingredient Pendimethalin and penoxsuam.
3. Herbicidal combinations according to claim 1 is characterized in that: contain active ingredient trefanocide and penoxsuam.
4. Herbicidal combinations according to claim 1 and 2 is characterized in that: the weight proportion of said Pendimethalin and penoxsuam is 100:1 to 1:100.
5. Herbicidal combinations according to claim 4 is characterized in that: the weight proportion of said Pendimethalin and penoxsuam is 50:1 to 1:50.
6. Herbicidal combinations according to claim 4 is characterized in that: the weight proportion of said Pendimethalin and penoxsuam is 1:20 to 20:1.
7. according to claim 1 or 3 described Herbicidal combinations, it is characterized in that: the weight proportion of said trefanocide and penoxsuam is 1:100 to 100:1.
8. Herbicidal combinations according to claim 7 is characterized in that: the weight proportion of said trefanocide and penoxsuam is 1:50 to 50:1.
9. Herbicidal combinations according to claim 7 is characterized in that: the weight proportion of said trefanocide and penoxsuam is 1:20 to 20:1.
10. according to the top described Herbicidal combinations of any one claim, it is characterized in that: the quality percentage composition that said Pendimethalin and penoxsuam account in the composition is 2-80%, preferred 5-60%.
11. the described Herbicidal combinations of any one claim according to top is characterized in that: the quality percentage composition that said trefanocide and penoxsuam account in the composition is 2-80%, preferred 5-60%.
12. according to the described Herbicidal combinations of top any one claim, it is characterized in that: said combination dosage form is water dispersible granules, missible oil, wetting powder, suspending agent, coated granule, extrudes granule, microcapsules, suspending agent, aqueous emulsion.
13., wherein described composition is flooded, adsorbs or is coated on the fertiliser granulates according to the described Herbicidal combinations of top any one claim.
14., be used for preventing and treating the weeds of useful crop according to the described Herbicidal combinations of top any one claim.
15., be used to prevent and treat cotton Tanaka's weeds according to the described Herbicidal combinations of top any one claim.
16., be used to prevent and treat cotton Tanaka's black nightshade, oak-leaved goosefeet, barnyard grass grass, acalypha copperleaf, Tong fiber crops weeds according to the described a kind of Herbicidal combinations of top any one claim.
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| CN105875618A (en) * | 2016-04-19 | 2016-08-24 | 泰安市农业科学研究院 | Synergistic weeding composition containing dicarfentrazone-ethyl and dinitraniline type compounds |
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| CN110612980A (en) * | 2019-09-27 | 2019-12-27 | 吉林省白城市农业科学院(吉林省向日葵研究所) | Method for preventing and controlling field weeds of castor-oil plants |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2723493A1 (en) * | 2011-06-24 | 2014-04-30 | Dow AgroSciences LLC | Synergistic herbicidal composition containing penoxsulam and pendimethalin |
| EP2723493A4 (en) * | 2011-06-24 | 2014-11-12 | Dow Agrosciences Llc | Synergistic herbicidal composition containing penoxsulam and pendimethalin |
| EP2723493B1 (en) | 2011-06-24 | 2017-06-14 | Dow AgroSciences LLC | Synergistic herbicidal composition containing penoxsulam and pendimethalin |
| EP2723493B2 (en) † | 2011-06-24 | 2020-03-18 | Dow AgroSciences LLC | Synergistic herbicidal composition containing penoxsulam and pendimethalin |
| CN103058766A (en) * | 2012-12-29 | 2013-04-24 | 广东中迅农科股份有限公司 | Weeding fertilizer granules of penoxsulam and preparation method thereof |
| CN108430219A (en) * | 2016-01-21 | 2018-08-21 | Upl 有限公司 | Improved herbicidal formulations |
| KR20180101490A (en) * | 2016-01-21 | 2018-09-12 | 유피엘 리미티드 | Improved herbicide formulation |
| EP3405031A1 (en) | 2016-01-21 | 2018-11-28 | UPL Limited | An improved herbicidal formulation |
| CN105875618A (en) * | 2016-04-19 | 2016-08-24 | 泰安市农业科学研究院 | Synergistic weeding composition containing dicarfentrazone-ethyl and dinitraniline type compounds |
| CN110612980A (en) * | 2019-09-27 | 2019-12-27 | 吉林省白城市农业科学院(吉林省向日葵研究所) | Method for preventing and controlling field weeds of castor-oil plants |
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| CN102342286B (en) | 2014-06-11 |
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