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CN108371181A - A kind of rice terrace post-emergence complex weedicide - Google Patents

A kind of rice terrace post-emergence complex weedicide Download PDF

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Publication number
CN108371181A
CN108371181A CN201810093062.XA CN201810093062A CN108371181A CN 108371181 A CN108371181 A CN 108371181A CN 201810093062 A CN201810093062 A CN 201810093062A CN 108371181 A CN108371181 A CN 108371181A
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China
Prior art keywords
propanil
benthiocarb
clomazone
complex weedicide
weeds
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CN201810093062.XA
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Chinese (zh)
Inventor
贾增坡
关学文
梁克印
詹美红
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Anhui Fengle Agrochemical Co Ltd
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Anhui Fengle Agrochemical Co Ltd
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Priority to CN201810093062.XA priority Critical patent/CN108371181A/en
Publication of CN108371181A publication Critical patent/CN108371181A/en
Pending legal-status Critical Current

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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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
    • 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
    • A01N25/02—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 containing liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • 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
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring

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  • Life Sciences & Earth Sciences (AREA)
  • 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)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a kind of rice terrace post-emergence complex weedicide, effective ingredient is propanil, benthiocarb He clomazone, and the propanil, benthiocarb are He the mass ratio of clomazone is 1~30：10‑50：1‑10.Complex weedicide significant effect of the present invention, compared with propanil, benthiocarb, clomazone single doses, dosage is low, it is at low cost, expand herbicide controlling spectrum, is significantly improved to the preventive effect of the single, double cotyledon weeds in field, fresh weight preventive effect, comprehensive fresh weight preventive effect, to field crops safety, quick-acting is apparent.Dispenser can prevent and kill off the weeds in crop entire breeding time, and, noresidue friendly to environment is highly safe to second stubble crop.It is a kind of current comparatively ideal herbicide for rice terrace cauline leaf process.

Description

A kind of rice terrace post-emergence complex weedicide
Technical field
The present invention relates to pesticide field, more particularly to a kind of rice terrace herbicide after seedling.
Background technology
Propanil (N-3,4- dichlorophenyl propanamide), is the highly selective contact killing type herbicide of amides, is mainly used for seedling Field or live streaming field, are the specific drugs for preventing and kill off barnyard grass, it can also be used to other a variety of grass family and broadleaf weed are prevented and kill off, such as duck tongue Grass, Chinese celery, lady's-grass, green bristlegrass etc..Propanil hardly transporting in plant is only worked in medicament contact site.It Mechanism of action is various, not only breaks up the photosynthesis of plant, but also inhibits respiration and oxygen public affairs phosphorylation, Interfering nucleic acid is synthesized with protein.To make the physiological function of sensitive plant be affected, accelerate its dehydration, gradually it is dried-up, It is last dead.Innocuous substance is resolved into rapidly since propanil is hydrolyzed enzyme in rice body, and rice is to the degradation capability of propanil It is 20 times bigger than barnyard grass, so to rice safety.So be currently widely used for rice terrace and dryland paddy prevent and kill off barnyard grass, Monochoria vaginalis, The weeds such as angustifolia arrowhead herb, lady's-grass, moleplant seed, lamb's-quarters, amaranth, acalypha copperleaf, purslane, knotweed.
Benthiocarb (lignocaine bamic acid-S- (4- chlorobenzyls) ester) is insoluble in water, is soluble in organic solvent.It is a kind of Uptake and translocation selective herbicide is mainly absorbed by weeds root and young shoot, makees processing soil treatment agent use, to rice safety, There is excellent control effect to barnyard grass.It is suitable for rice, wheat, soybean, peanut, corn, vegetable fields and orchard etc. prevent and kill off barnyard grass, Needle spikesedge herb, difformed galingale herb, moleplant seed, lady's-grass, yard grass, green bristlegrass, cyperus iria, HERBA PORTULACAE, amur foxtail etc..
Clomazone (2- (2- chlorobenzyls) -4,4- dimethyl isoxazole -3- ketone) is removed before organic heterocyclic class selectivity seedling Careless agent, suitable for prevent and kill off soybean, peanut, seeding corn and other crops field annual gramineous weed and broad leaved weed.Its lasting period is long, A drug, drug effect is up to crop entire breeding time；Administration time is flexible, cauline leaf after soil closing seedling before seedling.Control object:Barnyard grass Grass, green bristlegrass, lady's-grass, setaria glauca, eleusine indica, black nightshade, elscholtiza, water spine pin, purslane, piemarker, flowerofanhour root or herb, lamb's-quarters, small lamb's-quarters, The annual gramineaes such as penny cress, willow leaf thorn smartweed, pale persicaria, dayflower, dilute Xian of hair, bur beggar-ticks, beggar-ticks, Siberian cocklebur, artemisiifolia And broad leaved weed.There is stronger inhibiting effect to perennial field thistle, setose thistle, sowthistle, meadow pine etc..
Invention content
To solve the above problems, the present invention provides a kind of built herbicide for rice field, resistance barnyard grass, a thousand pieces of gold can be solved The problems such as son, broad leaved weed carp intestines, false loosestrife, mexicana, Procumbent Falsepimpernel, Monochoria vaginalis, dayflower, short arrowhead.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
A kind of rice post-emergence complex weedicide, effective ingredient are propanil, benthiocarb and clomazone, the propanil and standing grain The mass ratio of careless pellet, clomazones is 1-30：10-50：1-10.
Further scheme, the propanil, benthiocarb are He the mass ratio of clomazone is 10-30：28-32：3-7.
Further scheme, the propanil, benthiocarb are He the mass ratio of clomazone is 20：30：5.
Further scheme, the quality of the effective ingredient are the 1-80% of the complex weedicide gross mass.
The dosage form of further scheme, the complex weedicide is dispersible oil-suspending agent, wettable powder, water-dispersible grain Agent, aqueous emulsion, suspending agent, suspension emulsion, aqua or missible oil.
Further scheme, the dispersible oil-suspending agent are made of by mass percentage following component：Propanil 1-30%, Benthiocarb 10-50%, clomazones 1-10%, polyoxygenated Asia alkene 8%, castor oil polyoxyethylene ether 9%, dodecyl benzene sulfonic acid Salt 2%, methylated vegetable oil complements to 100%.Above-mentioned each component is by being sufficiently mixed allotment, ball mill grinding, adjustment, packing To suspending agent.
Propanil benthiocarb clomazone complex weedicide provided by the invention, with propanil missible oil, benthiocarb missible oil, different The loose each single dose of missible oil of Evil grass is compared, and is not only reduced dosage and pesticide residue, is also improved to the single, double cotyledon weeds of rice terrace Preventive effect, fresh weight preventive effect, comprehensive fresh weight preventive effect；It is with obvious effects to rice terrace resistant weed and to field crops safety.Separately Outside, a dispenser can prevent and kill off the weeds in crop entire breeding time, and second stubble crop height is pacified in, noresidue friendly to environment Entirely.It is a kind of current comparatively ideal herbicide for rice terrace cauline leaf process.
Specific implementation mode
The invention discloses a kind of rice terrace herbicide after seedling, those skilled in the art can use for reference present disclosure, suitably Modified technique parameter is realized.In particular, it should be pointed out that all similar substitutions and modifications are for a person skilled in the art It will be apparent that they are considered as being included in the present invention.The method of the present invention and application are carried out by preferred embodiment Description, related personnel obviously can not depart from the content of present invention, in spirit and scope to method described herein and application into Row change is suitably changed and is combined, to realize and apply the technology of the present invention.
With reference to embodiment, the present invention is further explained：
Embodiment 1 prepares the dispersible oil-suspending agent of complex weedicide of the present invention
The 65% dispersible oil-suspending agent of propanil benthiocarb clomazone, 65% refers to propanil, benthiocarb Yu Yi Evil grass Loose three kinds of active components account for the percentage of gross weight.Take 30kg propanil, 28kg benthiocarbs, 7kg clomazones, 8kg polyoxygenateds Asia alkene, 9kg/ castor oil polyoxyethylene ethers, 2kg dodecyl benzene sulfonates, methylated vegetable oil complement to 100kg.By being sufficiently mixed Allotment ball mill grinding, adjusts, is packaged to be dispersible oil-suspending agent.
Embodiment 2 prepares the wettable powder of complex weedicide of the present invention
60% propanil benthiocarb clomazone wettable powder takes 25kg propanil, 29kg benthiocarbs, 6kg Yi Evil grass Pine, 4kg dispersants NNO, 3kg wetting agent K12,4kg White Carbon black, precipitated calcium carbonate complement to 100kg.It is adequately mixed, air-flow It crushes, mixing, obtains wettable powder.
Embodiment 3：Prepare the suspending agent of complex weedicide of the present invention
55% propanil benthiocarb clomazone suspending agent, takes 20kg propanil, 30kg benthiocarbs, 5kg clomazones.Breast Agent 1601#15%, wetting agent LS 5%, dispersant SOPA-270 4%, bentonite 3%, xanthans 0.1%, organosilicon disappears Infusion 0.4%, glycerine 5%, deionized water complements to 100%.
Embodiment 4：Prepare the water dispersible granules of complex weedicide of the present invention
50% propanil benthiocarb clomazone water dispersible granules take 15kg propanil, 31kg benthiocarbs, 4kg Yi Evil grass Pine, D-425 6kg, EFW2kg, ammonium sulfate 5kg, polyethylene glycol 1kg, kaolin supply 100%, are adequately mixed, air-flow powder Broken, mixing is granulated, dry and screening, obtains dispersible granule.
Embodiment 5：Prepare the missible oil of complex weedicide of the present invention
45% propanil benthiocarb clomazone missible oil, takes 10kg propanil, 32kg benthiocarbs, 3kg clomazones, dense breast No. 33 4%, dodecyl benzene sulfonate 6%, dimethylbenzene complements to 100%.
Embodiment 6：Toxicity Determination
Test objective：Under greenhouse experiment, using pot-culture method, research propanil, benthiocarb, clomazone ternary builts Herbicidal effect, and using the mixed contact type of action of both the co-toxicity coefficient method of Sun Yunpei evaluations different proportion, for experiment Test basis is provided.
Experimental condition：For trying weeds, barnyard grass, moleplant seed, broad leaved weed carp intestines, false loosestrife, mexicana, Procumbent Falsepimpernel, duck tongue Grass, dayflower, short arrowhead etc., (upper one year, field harvested seed, and germination percentage is 85% or more).It is carried out in illumination cultivation room, 15-25 DEG C of temperature.
Application method：It is handled in the weeds 3-4 leaf phases.
98% propanil active compound of reagent agent (Anhui Feng Le agrochemical Co., Ltd laboratory provides)；95% benthiocarb active compound (Anhui Fengle Agricultural Co., Ltd's offer)；95% clomazone active compound (Anhui Fengle Agricultural Co., Ltd's offer)
Quantitative active compound is weighed using balance, dilutes required concentration.
Experimental design
The synergy of propanil, benthiocarb
Propanil, benthiocarb single dose and 5 propanil and benthiocarb mixture preparation are set into 5 dosage respectively, separately set blank control, Each test process is repeated 4 times.
Treatment agent dosage refers to table 1
1 test process of table and test level (effective ingredient consumption)
It is post-processed for rice seedlings, using power spraye, fills Fan spray head, the spraying of simulation crop field, spray value is 40 public Pound/acre.
Spraying time and number：It tests and carries out reagent spray processing, dispenser 1 time within 15th in September in 2016.
Weeds emergence situation is recorded after dispenser in detail, 20 days after medicine, carries out fresh weight measurement, and compared with control treatment, meter Fresh weight preventive effect is calculated, is shown in Table 2.
Synergy assay method
Synergy type of the test result with the co-toxicity coefficient method evaluation of Sun Yunpei after mixed.
According to SUN, Y-P (Sun Yunpei) method calculates its actual toxicity index, mixtures theoretical toxicity index, co-toxicity coefficient.With Log concentration is X, and prevention and control of weeds niqueMin is Y, seeks regression equation.
Actual toxicity index=standard agent LD50The LD of/mixture50×100
Theoretical toxicity index=∑ (percentage of the medicament active ingredient of the toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
Propanil is standard agent in experiment.
Criterion：Co-toxicity coefficient ＜ 80 is antagonism, is summation action between 80-120, and ＞ 120 makees for synergy With.
Table 2：Single dose fresh weight preventive effect is investigated
Fresh weight is four repetition average values in table.
Two pharmacy mix see the table below 3 to the indoor virulence of single, double cotyledon weeds and synergy
Table 3：Indoor virulence and synergy
As can be seen from the above table, handle (C), (D), (E), (F), (G) co-toxicity coefficient be respectively 159.39,224.99, 276.17,202.81,204.15,120 are all higher than, there is synergistic effect, wherein the co-toxicity coefficient of (E) is maximum, is 276.47, reaches To notable synergistic effect.
Conclusion (of pressure testing), by experiment it is found that propanil, benthiocarb press 20:30 ratio mixtures are more suitable, to annual grassy weeds With notable synergistic effect.
The synergy of propanil, benthiocarb mixture Yu clomazones
Propanil benthiocarb mixture, clomazones single dose and 5 mixture preparations are set into 5 dosage respectively, separately set blank pair According to each test process is repeated 4 times.Treatment agent dosage refers to table 4.
Table 4：Test process and test level (effective ingredient consumption)
Application method
Fan spray head, the spraying of simulation crop field, spray value are filled using power spraye for cauline leaf process after rice terrace seedling It is 40 kgs/acre.
Spraying time and number：It tests and carries out reagent spray processing, dispenser 1 time within 15th in September in 2016.
It records intoxication conditions after dispenser in detail, 20 days after medicine, carries out fresh weight measurement, and compared with control treatment, calculate fresh Weight preventive effect.
The synergy of the best mixture Yu clomazones of propanil benthiocarb
Table 5：The propanil benthiocarb fresh weight preventive effect to weeds mixed Yu clomazone
Fresh weight is four repetition average values in table.
Table 6：Indoor virulence and synergy of three pharmacy mix to single, double cotyledon weeds
As can be seen from the above table, handle (C), (D), (E), (F), (G) co-toxicity coefficient be respectively 215.77,242.24, 284.14,158.79,131.67,120 are all higher than, there is synergistic effect, wherein the co-toxicity coefficient of (E) is maximum, is 284.14, reaches To notable synergistic effect.
20 are pressed by propanil benthiocarb clomazone known to experiment：30:5 mixtures are more suitable, and co-toxicity coefficient is maximum, There is notable synergistic effect to annual single, double cotyledon weeds.
7 field control effectiveness test of embodiment
Dispenser place：Nanchang City, Jiangxi Province creates the area's townshiies Tie He rice terrace, and preceding stubble is idle field.Experimental field fertility uniform one It causes, topography is flat.Soil sand clay, middle fertility, humidity partially is moderate.Hunan early 45 is sowed, rice terrace wants annual unifacial leaf Weeds have barnyard grass, moleplant seed, trip grass, Paspalum distichum etc., and broadleaf weed master has Monochoria vaginalis, carp intestines, false loosestrife, mexicana, footpath between fields Serve, dayflower, Monochoria vaginalis equal distribution it is uniform.
Spraying time：The 4 leaf phase after rice seedlings, specific time are morning dispenser on May 20 in 2017.
Dispenser condition：Fine day on the day of dispenser, 10 DEG C~19 DEG C of temperature.
Dispenser dosage and mode：Formulation rate .150ml/667m2, liquid is using the preparation of two step dilution methods.Medical instruments use work - 16 knapsack sprayer of agriculture fills fan type nozzle, artificial even spraying, water consumption 40kg/667m2。
Test group：It is divided into oil-suspending agent test group, wettable powder test group, aqua test group；Wherein, oil-suspending agent tries It tests in group according to 150ml/667m2The dose spray embodiment of the present invention 1 in obtained contain 65% propanil benthiocarb Yi Evil The careless dispersible oil-suspending agent of pine, missible oil test group is according to 300 grams/acre of 34% propanil missible oil, 50% benthiocarb missible oil 200ml/ 667m2, 48% clomazone missible oil 20ml/667m2
Blank control group：Clear water is sprayed according to same dosage.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group account for respectively With experimental plot plot area 30m2, cell random alignment.Before dispenser, in the cell of each test group and blank control group, with Machine takes at 4 points；Dispenser 10d investigates weeds number of emerging, calculates strain preventive effect, and 30d calculates strain preventive effect and fresh weight preventive effect, records respectively each Test group and the number of emerging (strain/m of blank control group cell2), calculate Weed-control effect (%)；After dispenser 30d, extraction weeds weigh fresh Weight (g/m2), calculate fresh weight preventive effect (%).
The herbicidal effect of each test group is shown in Table 7
7 each dosage form herbicidal effect of propanil benthiocarb clomazone of table
As seen from the above table, after dispenser 10d, 65% propanil benthiocarb clomazone can made from the embodiment of the present invention 1 Disperse oil-suspending agent to the sealing effect of single, double cotyledon weeds 95% or more, and 34% propanil missible oil is miscellaneous to single, double cotyledon The preventive effect of grass is in 50% or so, 50% benthiocarb missible oil to the preventive effect 70% or so of monocotyledon weed, 48% Yi Evil Careless pine is 40% or so to single, double cotyledon Weed-control effect.So complex weedicide of the present invention not only increases compared with each single dose To the preventive effect of weeds, while herbicide controlling spectrum has also been enlarged, there is pole significant difference (P ＜ 0.01).
After dispenser 30d, the 65% dispersible oil-suspending agent of propanil benthiocarb clomazone made from the embodiment of the present invention 1 To the sealing effects of single, double cotyledon weeds 95% or more, and 34% propanil missible oil is to the preventive effect of single, double cotyledon weeds In 65% or so, 50% benthiocarb to the preventive effect 80% or so of monocotyledon weed, 48% clomazone EC is to single, double cotyledon Weed-control effect is 50% or so.Compared with each single dose, complex weedicide of the present invention not only increases the preventive effect to weeds, while Herbicide controlling spectrum is expanded, there is pole significant difference (P ＜ 0.01).
Dispenser 30d weighs fresh weight after extracting weeds, and 65% propanil benthiocarb Yi Evil are careless made from the embodiment of the present invention 1 The dispersible oil-suspending agent of pine is 100% to the fresh weight preventive effect of single, double cotyledon weeds, and 34% propanil is to single, double cotyledon weeds Fresh weight preventive effect is in 65% or so, 50% benthiocarb to the fresh weight preventive effect of monocotyledon weed in 80% or so, 48% clomazone pair The single, double miscellaneous fresh weight preventive effect of cotyledon is 50% or so.Compared with each single dose, complex weedicide of the present invention is not only increased to weeds Fresh weight preventive effect, while herbicide controlling spectrum has also been enlarged, there is pole significant difference (P ＜ 0.01).
In summary test result shows the dispersible oil-suspending agent oil-suspending agent of propanil benthiocarb clomazone and enemy The dispersible oil-suspending agent single dose of barnyard grass benthiocarb is compared, and is improved to preventive effect, the fresh weight preventive effect of weeds in field, to field crops Safety.
Embodiment 8
Dispenser place：Liuan City, Anhui Province Shucheng County Baima villages Dang Lixu, preceding stubble are wheat paddock.Experimental field fertility uniform one It causes, topography is flat.Soil sandy loam, middle fertility, humidity are moderate.Sow rice (town rice 18), the annual list of rice direct seeding field Cotyledon weeds mainly have barnyard grass, moleplant seed etc., broadleaf weed, main mexicana, Procumbent Falsepimpernel, false loosestrife, dayflower, duck tongue Grass, triquetrousc murdannia herb etc., are evenly distributed.
Spraying time：In the rice direct seeding field 4-5 leaf phases, the specific time is morning dispenser on June 25 in 2017.
Dispenser condition：Fine day on the day of dispenser, 27 DEG C~34 DEG C of temperature.
Dispenser dosage and mode：Formulation rate 150ml/667m2, liquid is using the preparation of two step dilution methods.Medical instruments are using sharp agriculture Electronic knapsack sprayer fills fan type nozzle, artificial even spraying, water consumption 40kg/667m2。
Test group：It is divided into suspending agent test group, missible oil, missible oil test group, wettable powder test group；Wherein, suspending agent According to 150ml/667m in test group2The dose spray embodiment of the present invention 3 in it is obtained different containing 55% propanil benthiocarb The loose suspending agent of Evil grass, missible oil test group is according to missible oil test group according to 34% 300 grams/667m of propanil2, 50% benthiocarb EC200ml/667m2(commercially available).48% clomazone EC20ml/667m2
Blank control group：Clear water is sprayed according to same dosage.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group account for respectively With experimental plot plot area 35m2, cell random alignment.Before dispenser, in the cell of each test group and blank control group, with Machine takes at 4 points；Dispenser 10d investigates weeds number of emerging, calculates strain preventive effect, and 30d calculates strain preventive effect and fresh weight preventive effect, records respectively each Test group and the number of emerging (strain/m of blank control group cell2), calculate Weed-control effect (%)；After dispenser 30d, extraction weeds weigh fresh Weight (g/m2), calculate fresh weight preventive effect (%).
The herbicidal effect of each test group is shown in Table 8.
8 each dosage form herbicidal effect of propanil benthiocarb clomazone of table
As can be known from the above table, after dispenser 10d, 55% propanil benthiocarb clomazone made from the embodiment of the present invention 3 is outstanding Floating agent is to the preventive effect of single, double cotyledon weeds 95% or more.Compared with single dose, complex weedicide of the present invention is improved to miscellaneous The preventive effect of grass, expands herbicide controlling spectrum, has pole significant difference (P ＜ 0.01)；The embodiment of the present invention 3 is obtained to contain 55% propanil Benthiocarb suspending agent, 95% or more, compared with single dose, improves and prevents weeds to the preventive effect of single, double cotyledon weeds Effect, expands herbicide controlling spectrum, has pole significant difference (P ＜ 0.01)；After dispenser 30d, the enemy obtained of the embodiment of the present invention 2,4,5 Barnyard grass benthiocarb clomazone 90% or more, compared with single dose, improves to miscellaneous the preventive effect of single, double cotyledon weeds The preventive effect of grass, expands herbicide controlling spectrum, has pole significant difference (P ＜ 0.01).
Dispenser 30d, which is extracted, weighs fresh weight after weeds, propanil benthiocarb clomazone made from the embodiment of the present invention 1,3 Suspending agent weighs fresh weight effect 95% or more to pulling out for single, double cotyledon weeds, compared with single dose, improves and prevents weeds Effect, expands herbicide controlling spectrum, has pole significant difference (P ＜ 0.01).
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (6)

1. a kind of rice post-emergence complex weedicide, it is characterised in that：Its effective ingredient is propanil, benthiocarb He clomazone, institute The mass ratio for stating propanil, benthiocarb He clomazone is 1-30：10-50：1-10.
2. complex weedicide according to claim 1, it is characterised in that：The matter of the propanil, benthiocarb He clomazone Amount is than being 10-30：28-32：3-7.
3. complex weedicide according to claim 2, it is characterised in that：The matter of the propanil, benthiocarb He clomazone Amount is than being 20：30：5.
4. complex weedicide according to claim 1,2 or 3, it is characterised in that：The quality of the effective ingredient is described The 1-80% of complex weedicide gross mass.
5. according to claim 1-3 any one of them complex weedicides, it is characterised in that：The dosage form of the complex weedicide is Dispersible oil-suspending agent, wettable powder, water dispersible granules, aqueous emulsion, suspending agent, suspension emulsion, aqua or missible oil.
6. complex weedicide according to claim 5, it is characterised in that：The dispersible oil-suspending agent is by following component It forms by mass percentage：Propanil 1-30%, benthiocarb 10-50%, clomazones 1-10%, polyoxygenated Asia alkene 8%, castor oil polyoxy Vinethene 9%, dodecyl benzene sulfonate 2%, methylated vegetable oil complements to 100%.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109169656A (en) * 2018-08-24 2019-01-11 安徽丰乐农化有限责任公司 A kind of rice post-emergence complex weedicide containing propanil
CN112753704A (en) * 2020-12-31 2021-05-07 河北威远生物化工有限公司 Novel suspending agent containing benthia grass and propanil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102265891A (en) * 2010-06-03 2011-12-07 南京华洲药业有限公司 Mixed herbicide containing bentazone, acifluorfen and molinate, and application thereof
CN102265861A (en) * 2010-06-03 2011-12-07 南京华洲药业有限公司 Mixed herbicide containing bentazone, cyhalofop-butyl and propanil and application thereof
CN103960253A (en) * 2013-01-25 2014-08-06 山东先达农化股份有限公司 Paddy field weed killer composition containing propanil and clomazone
CN105724390A (en) * 2016-04-28 2016-07-06 青岛清原抗性杂草防治有限公司 Rice field herbicide composition and application thereof
CN106172452A (en) * 2016-07-19 2016-12-07 安徽省银山药业有限公司 A kind of Oryza sativa L. post-emergence complex weedicide containing molinate and cyhalofop-butyl
CN106577689A (en) * 2016-10-31 2017-04-26 浙江天丰生物科学有限公司 Ternary compound paddy field weeding composition
CN107347888A (en) * 2017-07-24 2017-11-17 安徽丰乐农化有限责任公司 A kind of rice terrace post-emergence complex weedicide

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102265891A (en) * 2010-06-03 2011-12-07 南京华洲药业有限公司 Mixed herbicide containing bentazone, acifluorfen and molinate, and application thereof
CN102265861A (en) * 2010-06-03 2011-12-07 南京华洲药业有限公司 Mixed herbicide containing bentazone, cyhalofop-butyl and propanil and application thereof
CN103960253A (en) * 2013-01-25 2014-08-06 山东先达农化股份有限公司 Paddy field weed killer composition containing propanil and clomazone
CN105724390A (en) * 2016-04-28 2016-07-06 青岛清原抗性杂草防治有限公司 Rice field herbicide composition and application thereof
CN106172452A (en) * 2016-07-19 2016-12-07 安徽省银山药业有限公司 A kind of Oryza sativa L. post-emergence complex weedicide containing molinate and cyhalofop-butyl
CN106577689A (en) * 2016-10-31 2017-04-26 浙江天丰生物科学有限公司 Ternary compound paddy field weeding composition
CN107347888A (en) * 2017-07-24 2017-11-17 安徽丰乐农化有限责任公司 A kind of rice terrace post-emergence complex weedicide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109169656A (en) * 2018-08-24 2019-01-11 安徽丰乐农化有限责任公司 A kind of rice post-emergence complex weedicide containing propanil
CN112753704A (en) * 2020-12-31 2021-05-07 河北威远生物化工有限公司 Novel suspending agent containing benthia grass and propanil

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