CN104886076A - Weeding composition for paddy fields - Google Patents
Weeding composition for paddy fields Download PDFInfo
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- CN104886076A CN104886076A CN201510338246.4A CN201510338246A CN104886076A CN 104886076 A CN104886076 A CN 104886076A CN 201510338246 A CN201510338246 A CN 201510338246A CN 104886076 A CN104886076 A CN 104886076A
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- evil humulone
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Abstract
The invention discloses weeding composition for paddy fields. The composition comprises an active ingredient a, an active ingredient b and a proper pesticide adjuvant, wherein the active ingredient a is tembotrione, and the active ingredient b is one of oxadiazon and oxadiargyl; the mass part ratio of the active ingredient a to the active ingredient b is 1:30-30:1, and the sum of the mass of the active ingredient a and the active ingredient b accounts for 5%-8% of the mass percentage of the weeding composition; according to application requirements, dosage forms of suspensions, oil suspensions, water dispersible granules, wettable powder and the like can be prepared from the composition, the composition can be used for preventing and killing off paddy field annual weeds, especially those taking barnyard grass, sagittaria pygmaea and Scirpus juncoides Roxb as dominant weeds, control effects are obviously better than those of various single dosages, the dosage is decreased, and the drug resistance of the weeds is delayed.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of Herbicidal composition for rice field, be applicable to prevent and kill off paddy field annual weed, especially with the paddy field annual weed that barnyard grass (Echinochloa crusgalli), short arrowhead (Sagittaria pygmaea), firefly Lin (Scirpus juncoides) are advantage weeds.
Background technology
Ring sulphur ketone (Tembotrione), it is a kind of three ketones selective herbicide, effectively can prevent and treat main broadleaved herb and some grassy weeds, as piemarker, three-coloured amaranth, lamb's-quarters, knotweed, barnyard grass, lady's-grass etc. have good control efficiency, can be used for cauline leaf process after Seal treatment and bud before bud.
Evil humulone (oxadiazon), for preventing and kill off multiple annual unifacial leaf and broadleaf weed, is mainly used in paddy field weed-killer, is absorbed and is worked, can play good removing activity by weeds young shoot and cauline leaf under the condition having light.Particularly responsive to budding period weeds, when weeds one germinate, the growth of bud scale is just suppressed, and its tissue rots rapidly, and weeds are dead; Along with weeds growth drug effect declines, substantially invalid to the weeds grown up.Barnyard grass, moleplant seed, ditch millet, difformed galingale herb, Monochoria vaginalis, mexicana, globe daisy alkali grass, Sagittaria pygmaea etc. are prevented and kill off for rice field.Third alkynes Evil humulone (oxadiargyl) is the one novel oxadiazole nitrogen-containing hetero lopps weed killer herbicide of Rhone-Poulenc Company's exploitation, prevents and kill off broad leaved weed before being mainly used in the seedlings such as paddy rice, potato, sunflower, vegetables, beet, orchard.
By test, we have found that ring sulphur Tong Yu Evil humulone or Bing Que Evil humulone are to barnyard grass (Echinochloa crusgalli, ECHCR), Paspalum distichum (Paspalum paspaloides, PASPA), moleplant seed (Leptochloa chinensis, LEPCH), nit grass (Leptochloa panicea, LEPPA), wild water chestnut (Heleocharis plantagineiformis, HELPL), short arrowhead (Sagittaria pygmaea, SAGPY), arrowhead (Sagittaria trifolia, SAGTR) dayflower (Commelina communis, COMCO), Monochoria korsakowii (Monochoria korsakowii, MONKO), Scirpus tabernaemontani (Scirpus validus, SCIVA), Herba Cyperi Glomerati (Juncellus serotinus, JUNSE), cyperus iria (Cyperus iria, CYPIR), triquetrousc murdannia herb (Murdannia triquetra, MURTR), rhizoma alismatis (Alisma plantago-aquatica, ALIPL), firefly Lin firefly Lin (Scirpus juncoides, SCIJU) has synergistic function.
The present inventor conducts in-depth research ring sulphur Tong, Evil humulone or Bing Que Evil humulone mixture, find that ring sulphur Tong, Evil humulone or Bing Que Evil humulone mixture have Synergistic to respond to target weeds, especially to ring sulphur Tong Yu Evil humulone or Bing Que Evil humulone is composite that barnyard grass (Echinochloa crusgalli, ECHCR), short arrowhead (Sagittaria pygmaea), firefly Lin (Scirpus juncoides) are had to significant Synergistic and respond.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting are good and the lasting period is long, are conducive to the Herbicidal combinations of the weeds comprehensive regulation.
Another object of the present invention is to provide and is used for preventing and kill off farmland weed by this Herbicidal combinations, is particularly useful for preventing and kill off paddy field annual weed.
Technical solution of the present invention: for achieving the above object, the invention provides a kind of Herbicidal composition for rice field, comprises active ingredient a, active ingredient b and suitable insecticides adjuvant; Active ingredient a is ring sulphur ketone, the one in active ingredient b Xuan Zi Evil humulone or Bing Que Evil humulone; The ratio of quality and the number of copies of active ingredient a and active ingredient b is the mass percent of 1:30 ~ 30:1, active ingredient a and active ingredient b quality summation in Herbicidal combinations is 5% ~ 80%.
The auxiliary agent used in Herbicidal combinations provided by the invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to recipe requirements, are determined through simple test.
Herbicidal combinations provided by the invention can be prepared into by known method the multiple application forms being applicable to agriculturally using, reasonable formulation has suspending agent, oil-suspending agent, water dispersible granules, wetting powder etc., the production technology of various application forms all belongs to existing known technology, does not repeat them here
Described suspending agent formulation by weight percentage consists of: ring sulphur ketone 0.1 ~ 40% ， Evil humulone or Bing Que Evil humulone 0.1 ~ 40%, dispersant 0.01 ~ 17%, wetting agent 0.01-17%, thickener 0.01 ~ 3%, deionized water carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, after sand milling in high speed shear dispersion, sand mill, form high dispersive, stable suspension system in water-medium, the suspending agent of obtained corresponding weight percentage.
Described oil-suspending agent formulation by weight percentage consists of: ring sulphur ketone 0.1 ~ 40% ， Evil humulone or Bing Que Evil humulone 0.1 ~ 40%, dispersant 0.02 ~ 14%, wetting agent 0.02-13%, thickener 0.02 ~ 3%, liquid-carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, after sand milling in high speed shear dispersion, sand mill, form high dispersive, stable suspension system in oil system medium, the oil-suspending agent of obtained corresponding weight percentage.
Described dosage form of water dispersible granule by weight percentage consists of: ring sulphur ketone 0.1 ~ 80% ， Evil humulone or Bing Que Evil humulone 0.1 ~ 80%, dispersant 0.01 ~ 12%, wetting agent 0.2 ~ 15%, disintegrant 0.1 ~ 11%, solid carrier complements to 100%.Concrete production stage is: active ingredient and other auxiliary agent are mixed, and pulverizes with micro jet, through mediating, then adding in fluidized-bed granulation dryer and carrying out granulation, drying, screening, the water dispersible granules of obtained corresponding weight percentage.
Described wettable powder formulation by weight percentage consists of: ring sulphur ketone 0.1 ~ 80% ， Evil humulone or Bing Que Evil humulone 0.1 ~ 80%, dispersant 0.2 ~ 15%, wetting agent 0.1 ~ 10%, solid carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, again through air-flow crushing after mechanical crushing, mix, the wetting powder of obtained corresponding weight percentage.
Described defoamer can be one or more in silicone compound, epoxidized soybean oil, methyl alcohol, silicone oil etc.
Described antifreezing agent can be one or more in glycerine, propane diols, diethylene glycol (DEG), urea etc.
Described wetting agent can be one or more in lauryl sodium sulfate, neopelex, sodium butylnaphthalenesulfonate, sodium alkyl sulfonate, the withered powder of tea, spaonin powder, soapberry powder etc.
Described dispersant can be alkylphenol polyoxyethylene formaldehyde condensation products, naphthalenesulfonate formaldehyde condensation compound, to one or more in methoxyl group fatty acyl anilinesulfonic acid, lignosulfonates, polycarboxylate, alkylphenol polyoxyethylene sulphate, alkyl benzene sulfonate calcium salt, fatty acid ester sulphate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether etc.
Described disintegrant can be one or more in sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, Ac-Di-Sol, PVPP, shitosan, sodium alginate sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc.
Described thickener can be one or more in polyvinyl acetate, xanthans, gelatin, gum Arabic, aluminium-magnesium silicate, phenolic resins, CMC, sodium alginate etc.
Described solid carrier can be one or more in precipitated calcium carbonate, potter's clay, kaolin, diatomite, bentonite, white carbon, clay, attapulgite, talcum powder, quartz sand etc.
Described liquid-carrier can be one or more in exquisite soybean oil, corn oil, rapeseed oil, turpentine oil, methyl oleate, cocoa butter, palm wet goods.
Described deionized water is industrialization deionized water.
The frequency of administration of the present composition and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Binary combination of the present invention (i.e. ring Huang Tong Evil humulone or Bing Que Evil humulone) expands herbicide spectrum, and composition has Synergistic response to target, and preventing and kill off of paddy field weed provides excellent fix, has positive effect to the weeds comprehensive regulation.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Evaluate weed killer herbicide associated form (NY/T 1155.7-2006) according to Gowing method, its formula is as follows:
In formula:
X be ring sulphur ketone alone with certain dosage time fresh weight inhibition to target weeds;
Y Wei Evil humulone or Bing Que Evil humulone alone with certain dosage time fresh weight inhibition to target weeds;
E
0for when ring sulphur Tong, Evil humulone or Bing Que Evil humulone two kinds of pharmacy mix to the theoretical value of target weeds fresh weight inhibition or desired value;
E be ring sulphur Tong, Evil humulone or Bing Que Evil humulone two kinds of pharmacy mix time to target weeds fresh weight inhibition be contrast measured value or observation.
Evaluation criterion: as E ﹣ E
0during > 10%, be expressed as synergistic function; As ﹣ 10%≤E ﹣ E
0when≤10%, show as collaborative summation action; As E ﹣ E
0during < ﹣ 10%, show as joint action of antagonism.
Embodiment 1: ring sulphur Tong, Evil humulone or Bing Que Evil humulone and composite to barnyard grass (Echinochloa crusgalli, ECHCR), short arrowhead (Sagittaria pygmaea, SAGPY), firefly Lin (Scirpus juncoides, SCIJU) Toxicity Determination test.
15 days ring sulphur ketone after table 1, medicine, Bing Que Evil humulone and composite in greenhouse the bud phase ECHCR, SAGPY, SCIJU control result.
Weed killer herbicide associated form is evaluated according to Colby method, table 1 data show, ring sulphur ketone, Bing Que Evil humulone binary combination are to barnyard grass (Echinochloa crusgalli, ECHCR), short arrowhead (Sagittaria pygmaea, SAGPY), firefly Lin (Scirpus juncoides, SCIJU) synergistic effect is remarkable, E-E
0value is all greater than 20%.
15 days ring sulphur Tong, Evil humulones and composite to bud phase barnyard grass (Echinochloa crusgalli in greenhouse after table 2, medicine, ECHCR), short arrowhead (Sagittaria pygmaea, SAGPY), the control result of firefly Lin (Scirpus juncoides, SCIJU).
Weed killer herbicide associated form is evaluated according to Colby method, table 2 data show, ring sulphur Tong, Evil humulone binary combination is to barnyard grass (Echinochloa crusgalli, ECHCR), short arrowhead (Sagittaria pygmaea, SAGPY), firefly Lin (Scirpus juncoides, SCIJU) synergistic effect is remarkable, E-E
0value is all greater than 20%.
Embodiment 2:(ring Huang Tong Evil humulone water dispersible granules).
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the ring sulphur ketone Evil humulone water dispersible granules of corresponding percentage by weight.
Embodiment 3:(ring sulphur ketone Bing Que Evil humulone water dispersible granules).
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the ring sulphur ketone third alkynes Evil humulone water dispersible granules of corresponding percentage by weight.
Embodiment 4:(ring Huang Tong Evil humulone wetting powder).
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the ring Huang Tong Evil humulone wetting powder of corresponding percentage by weight.
Embodiment 5:(ring sulphur ketone Bing Que Evil humulone wetting powder).
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the ring sulphur ketone propine wetting powder of corresponding percentage by weight.
Embodiment 6:(ring Huang Tong Evil humulone suspending agent).
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the ring Huang Tong Evil humulone suspending agent of corresponding percentage by weight.
Embodiment 7:(ring sulphur ketone Bing Que Evil humulone suspending agent).
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the ring sulphur ketone Bing Que Evil humulone suspending agent of corresponding percentage by weight.
Embodiment 8:(ring Huang Tong Evil humulone oil-suspending agent).
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, namely can be made into the ring sulphur ketone Evil humulone oil-suspending agent of the good corresponding percentage by weight of flowing to property after emulsification.
Embodiment 9:(ring sulphur ketone Bing Que Evil humulone oil-suspending agent).
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, namely can be made into the ring sulphur ketone third alkynes Evil humulone oil-suspending agent of the good corresponding percentage by weight of flowing to property after emulsification.
Embodiment 10: prevent and kill off transplant field paddy rice annual weed field control effectiveness test.
Test site is positioned at peaceful town, Panjin City Panshan County, Liaoning Province, transplant field paddy rice annual weed includes but are not limited to firefly Lin (Scirpus juncoides, SCIJU), alternanthera philoxeroides (Alternanthera philoxeroides, ALTPH), barnyard grass (Echinochloa crusgalli, ECHCR), short arrowhead (Sagittaria pygmaea, SAGPY).
Table 3, prevent and kill off transplant field annual weed field control effectiveness test result.
Embodiment 11: prevent and kill off rice seedling throwing field annual weed field control effectiveness test.
Test site is positioned at Zhong Kai district of Huizhou City Chen Jiang town paddy rice, seedling throwing field annual weed includes but are not limited to moleplant seed (Leptochloa chinensis, LEPCH), Paspalum distichum (Paspalum paspaloides, PASPA), nit grass (Leptochloa panicea, LEPPA), cyperus iria (Cyperus iria, CYPIR).
Table 4, prevent and kill off seedling throwing field annual weed field control effectiveness test result.
In sum, the present invention adopts ring sulphur ketone and Bing Que Evil humulone (Huo Evil humulone) mixture combination Herbicidal combinations, synergistic function is shown to paddy field annual weed, be applicable to prevent and kill off paddy field annual weed, especially with the paddy field annual weed that barnyard grass (Echinochloa crusgalli), short arrowhead (Sagittaria pygmaea), firefly Lin (Scirpus juncoides) are advantage weeds, control efficiency is obviously better than each single dose, reduce dosage, delay herbicide resistance.
Claims (3)
1. a Herbicidal composition for rice field, is characterized in that: comprise active ingredient a, active ingredient b and suitable insecticides adjuvant; Active ingredient a is ring sulphur ketone, the one in active ingredient b Xuan Zi Evil humulone or Bing Que Evil humulone; The ratio of quality and the number of copies of active ingredient a and active ingredient b is the mass percent of 1:30 ~ 30:1, active ingredient a and active ingredient b quality summation in Herbicidal combinations is 5% ~ 80%.
2. a kind of Herbicidal composition for rice field as requested described in 1, is characterized in that: its formulation is the one in suspending agent, oil-suspending agent, water dispersible granules, wetting powder.
3. a kind of Herbicidal composition for rice field as requested described in 1 is preventing and kill off the application in paddy field annual weed barnyard grass, short arrowhead, firefly Lin.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104186502A (en) * | 2014-08-14 | 2014-12-10 | 广东中迅农科股份有限公司 | Herbicide composition containing oxadiazon and penoxsulam |
| CN113951260A (en) * | 2021-11-10 | 2022-01-21 | 安徽喜田生物科技有限公司 | Weeding composition containing propanil and tembotrione |
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| CN113951260A (en) * | 2021-11-10 | 2022-01-21 | 安徽喜田生物科技有限公司 | Weeding composition containing propanil and tembotrione |
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| CN104886076B (en) | 2018-12-28 |
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