CN106665629A - Compound herbicide used before direct sowing of field seedlings on dry paddy field - Google Patents
Compound herbicide used before direct sowing of field seedlings on dry paddy field Download PDFInfo
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- CN106665629A CN106665629A CN201611100352.XA CN201611100352A CN106665629A CN 106665629 A CN106665629 A CN 106665629A CN 201611100352 A CN201611100352 A CN 201611100352A CN 106665629 A CN106665629 A CN 106665629A
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- pyrazosulfuron
- butralin
- clomazone
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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
- 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
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a compound herbicide used before direct sowing of field seedlings on a dry paddy field. The compound herbicide comprises active ingredients of butralin, clomazone, and pyrazosulfuron-ethyl, wherein the mass ratio of the butralin to the clomazone to the pyrazosulfuron-ethyl is (10-70):(1-10):(0.1-10). The compound herbicide disclosed by the invention is significant in effect, and compared with a single agent of the butralin, the clomazone, and the pyrazosulfuron-ethyl, the compound herbicide is low in dosage and low in cost, extends the weed control spectrum, obviously improves the control effect, the green weight control effect and the comprehensive green weight control effect on field monocotyledon and dicotyledon weeds, and is obvious in safety and fast-acting property for field crops. One application of the compound herbicide can control the weeds in the whole growth period of crops, and the compound herbicide is environment-friendly, has no residue, and is highly safe for next-stubble crops. The compound herbicide is a relatively ideal herbicide for seal treatment before direct sowing of seedlings on the dry paddy field at present.
Description
Technical field
The present invention relates to pesticide field, more particularly to a kind of direct-sowing dry paddy field before seedling complex weedicide.
Background technology
Oryza sativa L. is not only the topmost cereal crops of China, is also one of world's staple food crop, and no matter Oryza sativa L. is planted
Area and yield, all rank first in China cereal crops.The rice field of all rice workspaces of China, always has a large amount of weeds to send out
It is raw, wherein medium crop smothering area accounts for more than the 46% of total cultivated area, serious injured area more than 11.5%, thus per annual loss
Lose more than 200 hundred million kilograms of grain.
With the development of agricultural cience and farming techniques, the popularization and application of chemical herbicide as saving of labor, save time, it is cost-effective
One of strong well stimulation.At present the use ratio of herbicide for paddy field nearly reaches 100%, and its dosage is very big.Mesh
Before, rice herbicide kind is more, wherein pretilachlor, butachlor, two chloroquines of grassy weed are prevented and kill off in representative having
Quinoline acid, benthiocarb and prevent and kill off bensulfuron-methyl, pyrazosulfuron of broad leaved weed and sedge weed etc..These herbicides are substantially bud
Front closing herbicide, the weeds effect to having emerged is undesirable, and prevents and kill off the medicament of annual grassy weeds to rice terrace after seedling
Species is also few.
Butralin (chemical name be N- sec-butyl -4- tertiary butyl -2,6- dinitroanilines) for soil before selectivity bud at
Reason agent, its effect is similar to trefanocide, and medicament is entered after plant, mainly suppresses merismatic cell division, so as to suppress
Weed bud and young root grow.Butralin can be used as plant growth regulator, control tobacco axillary bud growth, and it is applied to greatly
Prevent and kill off in the crop fields such as bean, Cotton Gossypii, Oryza sativa L., Semen Maydiss, Helianthi, Rhizoma Solani tuber osi, Semen arachidis hypogaeae, Citrullus vulgariss, Radix Betae, Caulis Sacchari sinensis and vegetable barnyard grass,
1 year raw monocotyledon weed such as Herba Eleusines Indicae, Herba Digitariae, Herba Setariae Viridis and part broadleaf weed；Soybean Field Semen Cuscutae is also had preferably
Preventive effect.Butralin can also be used to control the grass growth of Nicotiana tabacum L. axil.Have at present and used in direct-sowing dry paddy field, to rice direct seeding field
Monocotyledon weed and part broadleaf weed preventive effect are obvious.
The chemical name of clomazone is 2- (2- chlorobenzyls) -4,4- dimethyl isoxazole quinoline -3- ketone, is selectivity
Herbicide before seedling stage, it is absorbed by the root of plant, plumelet, and transporting upwards, Jing xylem diffuses to leaf portion, suppresses sensitive plant
The synthesis of chlorophyll and carotene, and form white Seedling so as to it is dead in a short time.The lasting period of clomazone is long, it is adaptable to big
The crops such as bean, Caulis Sacchari sinensis, Rhizoma Solani tuber osi, Semen arachidis hypogaeae, Nicotiana tabacum L., Oryza sativa L., Brassica campestris L, for preventing and kill off barnyard grass, Herba Setariae Viridis, Herba Digitariae, setaria glauca, cattle
Muscle grass, Herba Solani Nigri, Herba Moslae, water spine pin, Herba Portulacae, Herba Abutili, Herba hibisci trioni, Herba chenopodii, little Herba chenopodii, Thalaspi arvense L., willow leaf thorn smartweed, pale persicaria,
Annual gramineae and the broad leaved weeds such as Herba Commelinae, Mao Herba Siegesbeckiae, wolf tail grass, Herba Bidentis Bipinnatae, Herba Xanthii, artemisiifolia, in addition, to perennial
Field thistle, Radix Cirsii Japonici, Herba Sonchi Arvensis, Herba Equiseti Arvinsiss etc. have stronger inhibitory action.
The chemical name of pyrazosulfuron is 5- (4,6- dimethoxypyridin base -2- carbamoylamino sulphur -1- methyl pyrroles
Azoles -4- carboxylic acids (ethyl ester), belongs to sulfonylurea herbicide, is selective inner-adsorption conduction-type herbicide, is mainly inhaled by root system
Receive, shift rapidly in weeds plant body, Developing restraint, weeds are gradually dead.And efficacy stability, safe, the lasting period
25-35 days.Annual and perennial broadleaf weed and sedge weed are prevented and kill off suitable for rice seedling bed, live field, transplant field,
Such as different in nature dried tuber, Herba Cyperi Glomerati, firefly Lin, Herba monochoriae vaginaliss, Herba Oenanthes Javanicae, mexicana, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.), Herba potamogetonis distincti, blue or green duckweed, Eclipta prostrata.To barnyard grass, a thousand pieces of gold
Son is invalid.Because Oryza sativa L. can decompose the medicament, therefore it has little to no effect to paddy growth.
The content of the invention
To solve the above problems, the present invention provides a kind of rice direct-sowing dry field before seedling complex weedicide, can solve the problem that resistance horse
The problems such as Tang, barnyard grass, Herba Setariae Viridis, Herba Eleusines Indicae.
A kind of direct-sowing dry paddy field before seedling complex weedicide, its active ingredient be butralin, clomazones, pyrazosulfuron,
The butralin, clomazones, the mass ratio of pyrazosulfuron are 10~70：1-10:0.1~10.
Further scheme, the butralin, clomazones, the mass ratio of pyrazosulfuron are 34~58：2.8~3.8:0.2
~1.2.
Further scheme, the butralin, clomazones, the mass ratio of pyrazosulfuron are 46:3.2:0.8.
The weight/mass percentage composition of the active ingredient is the 1~80% of the complex weedicide.
The complex weedicide is suspending agent, wettable powder, water dispersible granules, aqueous emulsion, suspension emulsion, water preparation or breast
Oil.
Further scheme, the suspending agent is made up of following component by quality amount percentage ratio：It is butralin 10-60%, different
Evil grass pine 1-5%, pyrazosulfuron 0.1-1%, polyoxygenated Asia alkene 8%, castor oil polyoxyethylene ether 9%, DBSA
Salt 2%, methylated vegetable oil complements to 100%.
The butralin clomazone pyrazosulfuron suspending agent that the present invention is provided, with butralin cream, clomazones breast
Oil, pyrazosulfuron wettable powder are compared, and reduce dosage, reduce residual, improve cotyledon single, double to direct-sowing dry paddy field
The preventive effect of weeds, fresh weight preventive effect, comprehensive fresh weight preventive effect, to field crops safety, to Oryza sativa L. rice direct-sowing dry field resistant weed
Effect is obvious.
Specific embodiment
The invention discloses a kind of direct-sowing dry paddy field herbicide before seedling stage, those skilled in the art can use for reference interior herein
Hold, be suitably modified technological parameter realization.Specifically, all similar replacements and change are to those skilled in the art
For be it will be apparent that they are considered as being included in the present invention.The method of the present invention and application have passed through preferably enforcement
Example is described, related personnel substantially can in without departing from present invention, spirit and scope to method described herein and
Using be modified or suitably change with combining realizing and apply the technology of the present invention.
With reference to embodiment, the present invention is expanded on further：
Embodiment 1：Prepare 50% butralin clomazone pyrazosulfuron and dispersible oil-suspending agent
Take 46kg butralins, 3.2kg clomazones, 0.8kg pyrazosulfurons, 8kg polyoxygenated Asia alkene, 9kg/ Oleum Ricini polyoxies
Vinyl Ether, 2kg dodecyl benzene sulfonates, methylated vegetable oil complements to 100kg.Through being sufficiently mixed allotment, ball mill pulverizing,
Adjustment, it is packaged to be and dispersibles oil-suspending agent.
Embodiment 2：54% butralin clomazone pyrazosulfuron water dispersible granule
Take 52kg butralins, 1.5kg clomazones, 0.5kg pyrazosulfurons, D-425 6kg, EFW2kg, ammonium sulfate 5kg,
Polyethylene Glycol 1kg, Kaolin supply 100%, be adequately mixed, comminution by gas stream, mixing, pelletize, drying and screening, obtain dispersible granule
Agent
Embodiment 3：Prepare 59% butralin clomazone pyrazosulfuron wettable powder
Take 58kg butralins, 0.5kg clomazones, 0.5kg pyrazosulfurons, 4kg dispersant NNO, 3kg wetting agent K12,
4kg White Carbon blacks, precipitated calcium carbonate complements to 100kg.Be adequately mixed, comminution by gas stream, mixing, obtain wettable powder.
Embodiment 4：Prepare 44% butralin clomazone pyrazosulfuron wettable powder
Take 40kg butralins, 3.6kg clomazones, 0.4kg pyrazosulfurons, emulsifying agent 1601#15%, wetting agent LS
5%, dispersant SOPA-270 4%, bentonite 3%, xanthan gum 0.1%, organic silicon defoamer 0.4%, glycerol 5%, go from
Sub- water complements to 100%.
Embodiment 5：Prepare 42% butralin clomazone pyrazosulfuron wettable powder
Take 34kg butralins, 4.5kg clomazones, 3.5kg pyrazosulfurons, dense newborn 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 butralin, clomazones, pyrazosulfuron ternary
The herbicidal effect of compounding, and the co-toxicity coefficient method using Sun Yunpei evaluates the mixed contact type of action of both different proportions, is
Test provides test basis.
Experimental condition：For trying weeds, Herba Digitariae, barnyard grass, Herba Setariae Viridis, Herba Eleusines Indicae etc., broadleaf weed master have Herba Solani Nigri, Herba Moslae,
Water spine pin, Herba Portulacae, Herba Abutili, Herba hibisci trioni, Herba chenopodii, little Herba chenopodii, Thalaspi arvense L., willow leaf thorn smartweed, pale persicaria, Herba Commelinae, Mao Herba Siegesbeckiae, wolf
Bar grass, Herba Bidentis Bipinnatae, Herba Xanthii, artemisiifolia etc., (field harvesting upper one year seed, germination percentage is more than 85%).
Carry out in illumination cultivation room, temperature 25-33 DEG C
Application method：Rear before seedling soil treatment is broadcast in weeds.
EXPERIMENTAL DESIGN
The Pdibutalin of reagent agent 95% (Shandong Binnong Technology Co., Ltd.)；95% clomazone active compound (An Huifeng
Happy agrochemical Co., Ltd), 97% pyrazosulfuron active compound (Jiangsu Chang Long agrochemical company limited).
Quantitative active compound is weighed using balance, desired concn is diluted.
EXPERIMENTAL DESIGN：
The synergy of clomazone and pyrazosulfuron
Clomazone, pyrazosulfuron single dose and 5 Ge clomazones and pyrazosulfuron mixture preparation are set into respectively 5 dosage,
Blank is separately set, each test process is repeated 4 times.
Treatment agent dosage refers to table 1
The test process of table 1 and test level (effective ingredient consumption)
The synergy of the optimal mixture of clomazone, pyrazosulfuron and butralin
Clomazone pyrazosulfuron mixture, butralin single dose and 5 mixture preparations are set into respectively 5 dosage, sky is separately set
White control, each test process are repeated 4 times.
Treatment agent dosage refers to the test process of table 2 and test level (effective ingredient consumption)
The test process of table 2 and test level
Application method
For direct sowing on dry paddy field before seedling sealing treatment, using power sprayer, Fan spray head, the spraying of simulation land for growing field crops, spray are filled
Dose is 40 kgs/acre.
Spraying time and number of times：Test carried out reagent spray process, dispenser 1 time on May 10th, 2015.
Itemized record weeds emerge situation after dispenser, 20 days after medicine, carry out fresh weight measurement, and compare with control treatment, count
Calculate fresh weight preventive effect.
Synergy assay method
Synergy type of the result of the test 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, mixture 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=∑ the percentage rate of the medicament effective ingredient (toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
Butralin is standard agent in test.
Criterion：Co-toxicity coefficient ＜ 80 is antagonism, is summation action between 80-120, and ＞ 120 is potentiation work
With.
The single dose fresh weight preventive effect of table 3 is investigated
Fresh weight preventive effect is four repetition meansigma methodss in table.
Two pharmacy mix see the table below 4 to the indoor virulence of single, double cotyledon weeds and synergy：
The mixed indoor virulence of the clomazone of table 4, pyrazosulfuron and synergy
As can be seen from the above table, process (C), (D), (E), (F), the co-toxicity coefficient of (G) be respectively 144.52,194.56,
200.28th, 157.95,159.68,120 are all higher than, with potentiation, wherein the co-toxicity coefficient of (E) is maximum, and it is 200.28, reach
To notable potentiation.
Conclusion (of pressure testing), understands that , clomazones, pyrazosulfuron press 3.2 by test:0.8 ratio mixture is more suitable, to one
Year, there is raw weeds notable synergistic to act on.
Clomazone pyrazosulfuron presses 3.2:0.8 mixture see the table below with the synergy of butralin.
Table 5：The clomazone pyrazosulfuron fresh weight preventive effect to weeds mixed with butralin
Fresh weight is four repetition meansigma methodss in table.
Indoor virulence and synergy of the pharmacy mix of table 6 three to single, double cotyledon weeds
As can be seen from the above table, process (C), (D), (E), (F), the co-toxicity coefficient of (G) be respectively 140.7,188.58,
272.75th, 163.58,161.15,120 are all higher than, with potentiation, wherein the co-toxicity coefficient of (E) is maximum, and it is 272.75, reach
To notable potentiation.
Understand that butralin clomazone presses 46 with pyrazosulfuron by test:4 mixtures are more suitable, and co-toxicity coefficient is most
Greatly, there is notable synergistic to act on annual single, double cotyledon weeds.
Embodiment 7：Field control effectiveness test
Dispenser place：Wuxi City, Jiangsu Province Xishan District Donggang City town Lu Zhuan villages direct-sowing dry paddy field, front stubble is Winter paddy field.Test
Ground fertility uniformity, physical features is flat.Soil sand clay partially, middle fertility, humidity is moderate.Sowing town rice 99, Rice In Drought Rice Nursery is straight
Broadcasting the owner of farmland wants annual monocotyledon weed to have Herba Digitariae, barnyard grass, Herba Setariae Viridis, Herba Eleusines Indicae etc., broadleaf weed master have Herba Solani Nigri, Herba Moslae,
Water spine pin, Herba Portulacae, Herba Abutili etc., are evenly distributed.
Spraying time：Rear before seedling is broadcast in direct sowing on dry paddy field, the concrete time is the morning dispenser of June 10 in 2015.
Dispenser condition：Dispenser same day fine day, 26 DEG C~35 DEG C of temperature.
Dispenser dosage and mode：Formulation rate 108ml/667m2, medicinal liquid is using the preparation of two step dilution methods.Medical instruments using workers and peasants-
16 knapsack sprayers, fill fan shower nozzle, and artificial even spraying, water consumption is 40kg/667m2。
Test group：It is divided into oil-suspending agent test group, cream test group, wettable powder test group；Wherein, oil-suspending agent examination
Test in group according to 108ml/667m2The dose spray embodiment of the present invention 1 in obtained contain 50% butralin clomazone
Pyrazosulfuron dispersibles oil-suspending agent, and cream test group is according to milliliter/mu of 48% butralin cream 150,48% clomazone
EC25ml/667m2, 10% pyrazosulfuron amine Wp20g/667m2Dose spray (commercially available).
Blank control group：Clear water is sprayed according to equal consumption.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group are accounted 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 20d investigates weeds number of emerging, calculates strain preventive effect, and 45d calculates strain preventive effect and fresh weight preventive effect, each is recorded respectively
Test group and blank control group cell number of emerging (strain/m2), calculate Weed-control effect (%)；After dispenser 45d, extract weeds weigh it is fresh
Weight (g/m2), calculate fresh weight preventive effect (%).
The herbicidal effect of each test group is shown in Table
The each dosage form herbicidal effect of the butralin clomazone pyrazosulfuron of table 7
As seen from the above table, after dispenser 20d, the embodiment of the present invention 1 is obtained phonetic containing 50% butralin clomazone pyrrole
Sulphur is grand to dispersible oil-suspending agent to the sealing effect of single, double cotyledon weeds more than 95%, containing 48% butralin EC to single, double
The sealing effect of cotyledon weeds is respectively the sealing effect point in 79.6%, 50%, 48% clomazone to single, double cotyledon weeds
Not Wei 74.1%, 58.3%, 10% pyrazosulfuron wettable powder is invalid to monocotyledon weed, and broadleaf weed sealing effect is
50%.Compared with each single dose, the preventive effect to weeds is not only increased, while weed control spectrum is have also been enlarged, with pole significant difference (P
＜ 0.01).
After dispenser 45d, the embodiment of the present invention 1 is obtained to dispersible oil containing 50% butralin clomazone pyrazosulfuron
Suspending agent to the preventive effect of single, double cotyledon weeds more than 95%, imitate by the closing to single, double cotyledon weeds containing 48% butralin EC
Fruit is respectively the sealing effect of single, double cotyledon weeds is respectively in 81.5%, 58.3%, 48% clomazone cream
61.1%th, 47.2%, 10% pyrazosulfuron wettable powder is invalid to monocotyledon weed, and broadleaf weed sealing effect is
75.0%.Compared with each single dose, the preventive effect to weeds is not only increased, while weed control spectrum is have also been enlarged, with pole significant difference
(P ＜ 0.01).
Dispenser 45d is extracted and weigh after weeds fresh weight, and the embodiment of the present invention 1 is obtained to contain 50% butralin clomazone
It is 100% that pyrazosulfuron dispersibles oil-suspending agent to the fresh weight preventive effect of single, double cotyledon weeds, containing 48% butralin EC to single, double
More than 70%, 48% clomazone cream is to the fresh weight preventive effect of single, double cotyledon weeds 50% for the fresh weight preventive effect of cotyledon weeds
More than, 10% pyrazosulfuron wettable powder is more than 75% to the fresh weight preventive effect of broadleaf weed, compared with each single dose, not only
The fresh weight preventive effect to weeds is improve, while weed control spectrum is have also been enlarged, with pole significant difference (P ＜ 0.01).
Summary result of the test shows, butralin clomazone pyrazosulfuron oil-suspending agent and butralin cream,
Clomazone, pyrazosulfuron are compared, and the preventive effect, fresh weight preventive effect to weeds in field is improved, to field crops safety.
Embodiment 8
Dispenser place：Liu Xin towns Chen Tong village of Xuzhou City of Jiangsu Province brass hill area direct-sowing dry paddy field, front stubble is wheat paddock.Test
Ground fertility uniformity, physical features is flat.Soil sandy loam, middle fertility, humidity is moderate.Sowing Oryza sativa L. (Zheng's drought 6), Rice In Drought Rice Nursery
The annual monocotyledon weed in live field mainly has Herba Digitariae, barnyard grass, Herba Setariae Viridis etc., broadleaf weed, main Herba Solani Nigri, fragrant Herba Portulacae,
Herba Abutili, Herba chenopodii, little Herba chenopodii, Herba Commelinae, Herba Xanthii etc., are evenly distributed.
Spraying time：Rear before seedling is broadcast in direct-sowing dry paddy field, the concrete time is the morning dispenser of June 3 in 2016.
Dispenser condition：Dispenser same day fine day, 27 DEG C~34 DEG C of temperature.
Dispenser dosage and mode：Formulation rate 108ml/667m2, medicinal liquid is using the preparation of two step dilution methods.Medical instruments are using sharp agriculture
Electronic knapsack sprayer, fills fan shower nozzle, and artificial even spraying, water consumption is 40kg/667m2。
Test group：It is divided into suspending agent test group, cream, cream test group, wettable powder test group；Wherein, suspending agent
According to 108ml/667m in test group2The dose spray embodiment of the present invention 4 in obtained to contain 44% butralin Yi Evil careless
Loose pyrazosulfuron suspending agent, cream test group according to cream test group according to milliliter/mu of 48% butralin cream 150,48%
Clomazone EC25ml/667m2, 10% pyrazosulfuron amine Wp20g/667m2Dose spray (commercially available).
Blank control group：Clear water is sprayed according to equal consumption.
Test method：Each test group and blank control group are repeated 4 times, and each test group and blank control group are accounted 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 20d investigates weeds number of emerging, calculates strain preventive effect, and 45d calculates strain preventive effect and fresh weight preventive effect, each is recorded respectively
Test group and blank control group cell number of emerging (strain/m2), calculate Weed-control effect (%)；After dispenser 45d, extract weeds weigh it is fresh
Weight (g/m2), calculate fresh weight preventive effect (%).
The herbicidal effect of each test group is shown in Table.
The each dosage form herbicidal effect of the butralin clomazone pyrazosulfuron of table 8
As can be known from the above table, after dispenser 20d, the phonetic sulphur of 44% butralin clomazone pyrrole obtained in the embodiment of the present invention 4
Grand suspending agent more than 90%, compared with single dose, improves the preventive effect to weeds to the preventive effect of single, double cotyledon weeds, expands
Big weed control spectrum, with pole significant difference (P ＜ 0.01)；The embodiment of the present invention 4 is obtained careless containing 44% butralin Yi Evil
Loose pyrazosulfuron suspending agent more than 90%, compared with single dose, is improve to weeds to the preventive effect of single, double cotyledon weeds
Preventive effect, weed control spectrum is expanded, with pole significant difference (P ＜ 0.01)；After dispenser 45d, obtained in the embodiment of the present invention 2,3,5
Butralin clomazone pyrazosulfuron more than 90%, compared with single dose, is improved to the preventive effect of single, double cotyledon weeds
Preventive effect to weeds, expands weed control spectrum, with pole significant difference (P ＜ 0.01).
Dispenser 45d is extracted and weigh after weeds fresh weight, the phonetic sulphur of butralin clomazone pyrrole obtained in the embodiment of the present invention 4
Grand suspending agent weighs fresh weight effect more than 90% to pulling out for single, double cotyledon weeds, compared with single dose, improves to weeds
Preventive effect, expands weed control spectrum, with pole significant difference (P ＜ 0.01).
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of direct-sowing dry paddy field before seedling complex weedicide, it is characterised in that：Its active ingredient be butralin, clomazones,
Pyrazosulfuron, the butralin, clomazones, the mass ratio of pyrazosulfuron are 10~70：1-10:0.1~10.
2. complex weedicide according to claim 1, it is characterised in that：The butralin, clomazones, pyrazosulfuron
Mass ratio is 34~58：2.8~3.8:0.2~1.2.
3. complex weedicide according to claim 2, it is characterised in that：The butralin, clomazones, pyrazosulfuron
Mass ratio is 46:3.2:0.8.
4. the complex weedicide according to claim 1,2 or 3, it is characterised in that：The quality percentage of the active ingredient contains
Measure as the 1~80% of the complex weedicide.
5. the complex weedicide according to any one of claim 1-3, it is characterised in that：The complex weedicide is suspension
Agent, wettable powder, water dispersible granules, aqueous emulsion, suspension emulsion, water preparation or cream.
6. complex weedicide according to claim 5, it is characterised in that：The suspending agent is by quality amount by following component
Percentage ratio is constituted：Butralin 10-60%, clomazone 1-5%, pyrazosulfuron 0.1-1%, polyoxygenated Asia alkene 8%, Oleum Ricini polyoxy second
Alkene ether 9%, dodecyl benzene sulfonate 2%, methylated vegetable oil complements to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100352.XA CN106665629A (en) | 2016-12-03 | 2016-12-03 | Compound herbicide used before direct sowing of field seedlings on dry paddy field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100352.XA CN106665629A (en) | 2016-12-03 | 2016-12-03 | Compound herbicide used before direct sowing of field seedlings on dry paddy field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106665629A true CN106665629A (en) | 2017-05-17 |
Family
ID=58867381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611100352.XA Pending CN106665629A (en) | 2016-12-03 | 2016-12-03 | Compound herbicide used before direct sowing of field seedlings on dry paddy field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106665629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107372562A (en) * | 2017-08-07 | 2017-11-24 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of pendimethalin, clomazones and pyrazosulfuron |
| CN112205402A (en) * | 2020-11-24 | 2021-01-12 | 安徽苏昆化工科技有限公司 | Weeding composition containing butralin, clomazone and butachlor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069507A (en) * | 2007-06-07 | 2007-11-14 | 江西盾牌化工有限责任公司 | Weeding composition and preparating method |
| CN102177907A (en) * | 2011-03-22 | 2011-09-14 | 钱永康 | Herbicide |
| CN102428942A (en) * | 2011-11-22 | 2012-05-02 | 山东先达农化股份有限公司 | Paddy field herbicide mixture |
| CN103503901A (en) * | 2013-09-26 | 2014-01-15 | 江志鑫 | Novel herbicide |
-
2016
- 2016-12-03 CN CN201611100352.XA patent/CN106665629A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069507A (en) * | 2007-06-07 | 2007-11-14 | 江西盾牌化工有限责任公司 | Weeding composition and preparating method |
| CN102177907A (en) * | 2011-03-22 | 2011-09-14 | 钱永康 | Herbicide |
| CN102428942A (en) * | 2011-11-22 | 2012-05-02 | 山东先达农化股份有限公司 | Paddy field herbicide mixture |
| CN103503901A (en) * | 2013-09-26 | 2014-01-15 | 江志鑫 | Novel herbicide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107372562A (en) * | 2017-08-07 | 2017-11-24 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of pendimethalin, clomazones and pyrazosulfuron |
| CN112205402A (en) * | 2020-11-24 | 2021-01-12 | 安徽苏昆化工科技有限公司 | Weeding composition containing butralin, clomazone and butachlor |
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