CN110178848A - A kind of propanil metamifop azoles humulone administers resistance barnyard grass composition and its application - Google Patents
A kind of propanil metamifop azoles humulone administers resistance barnyard grass composition and its application Download PDFInfo
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- CN110178848A CN110178848A CN201910617448.0A CN201910617448A CN110178848A CN 110178848 A CN110178848 A CN 110178848A CN 201910617448 A CN201910617448 A CN 201910617448A CN 110178848 A CN110178848 A CN 110178848A
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- propanil
- metamifop
- barnyard grass
- azoles humulone
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- 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
- A01N43/74—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 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
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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)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of propanil, metamifop and azoles humulones to administer resistance barnyard grass composition and its application, the herbicidal composition, it can effectively solve the problem that using anti-penoxsuam barnyard grass as sociales direct sowing of rice field weed, expand herbicide degrass spectrum, while to rice safety；The dosage that can be significantly reduced reduces times for spraying, reduces field chemical control cost；Delay the generation of resistance weed and occur again, is that one kind prevents and kill off the feasible herbicidal composition of direct sowing of rice field weed at present.
Description
Technical field
The invention belongs to technical field of plant protection, be related to it is a kind of with propanil, metamifop and azoles humulone be effectively at
The herbicidal composition divided, for preventing the direct sowing of rice field weed divided by anti-penoxsuam barnyard grass for sociales.
Background technique
Rice in China sowing face accounts for the 1/4 of national cereal crops, and yield then accounts for more than half.For important cereal crops；
In addition to edible caryopsis, can starch processed, make wine, vinegar processed, rice bran can refine sugar, extracts oil, extract furfural, for industry and pharmaceutical；Rice straw
For good feed and paper making raw material and braided material, rice sprout and rice root can hyoscines.Nearly half population in the world, including it is almost whole
The population in a East Asia and Southeast Asia is all food with rice.
Paddy field weed seriously affects the yield and quality of rice, especially with Echinochloa Weed infestation most serious, such as barnyard grass
(Echinochloa crus-galli), without awns barnyard grass (E.crus-galli var.mitis), hard bran barnyard grass (E.glarescens)
Deng among these again with the harm most serious of barnyard grass.For a long time, control barnyard grass relies primarily on chemical herbicide and is prevented and kill off, because of its tool
Have the advantages that time saving and energy saving, profitable.But chemical herbicide, which is used for a long time, is easy to cause barnyard grass to develop drug resistance, especially active
Herbicide high, target site is single, such as acetolactate synthestase (Acetolactate synthase, ALS) inhibitor class
Penoxsuam played important function in terms of preventing and treating paddy field weed since it puts goods on the market.But when with using
Between increase, the practical effect of controlling in the field of penoxsuam is begun to decline.The main rice region in China gradually begins with barnyard grass to penoxsulam
Amine generates the report of resistance, so how effectively preventing and kill off the Echinochloa weeds of paddy field and solving its drug resistance is that we have to face
Pair problem.
Propanil is acetamide-group herbicides, its mechanism of action be it is various, not only break up the photosynthesis of plant, and
Also inhibit respiration and the phosphorylation of oxygen public affairs, interfering nucleic acid is synthesized with protein.It is that highly selective contact killing type removes
Careless agent, propanil are encountered after soil decomposes and are failed, only preferably make cauline leaf process agent, be mainly used for paddy field and prevent and kill off barnyard grass, can also prevent and treat
Monochoria vaginalis, water purslane and dryland paddy prevent and kill off herba digitariae, the seedling weeds such as herba setariae viridis, wild amaranth.
Metamifop is aromatic oxygen-phenoxy group propionates class herbicide, which belongs to acetyl-CoA carboxylase
(ACCase) inhibitor can conduct rapidly entire plant after being absorbed by the leaf of weeds gramineous, accumulate in mitogenetic group of plant
It knits, inhibits the activity of acetyl-CoA carboxylase in plant, fatty acid biosynthesis block is caused to cause yellowing leaf, final herbicide
Weeds.It is very safe to rice unlike similar herbicide, can effectively prevent and kill off barnyard grass, semen euphorbiae, herba digitariae and herba eleusines indicae
Main gramineae weed in equal rice fields, it is invalid to broadleaf weeds.
Azoles humulone is triazolineone herbicide, which belongs to proporphyrinogen oxidase (PPO) inhibitor, that is, pass through leaf
It is green element biosynthetic process in proporphyrinogen oxidase activity and cause cell membrane disruption, quickly dry the leaves and die.The medicine
Agent is very fast to the lethal speed of weeds, and 2-4d weeds are death after general application, be generally used for preventing and kill off paddy field broadleaf weeds and
Sedge weed.
Summary of the invention
It is an object of the invention to anti-miscellaneous divided by the rice direct seeding field that anti-penoxsuam barnyard grass is sociales by composition
Grass.
Above-mentioned purpose that the invention is realized by the following technical scheme:
Herbicidal composition, main component is propanil, metamifop and azoles humulone, for preventing and kill off paddy field resistance barnyard grass
Grass, other annual gramineous weeds, broadleaf weeds and sedge weed.
Medicament application method: after 3.5 leaf of direct-sowing dry rice, it is spraying that cauline leaf is carried out to grass
Compared with existing paddy field Common Herbicides, this herbicidal composition is had the advantage that
(1) the gramineae weeds synergistic effect such as antagonism barnyard grass is significant, and preventive effect is significantly better than when single dose is administered alone
Preventive effect.
(2) dosage can be significantly reduced, reduce field chemical control cost.
(3) herbicide resistance can be delayed to generate and occur again.
(4) simultaneous to control part broadleaf weeds and Cyperaceae, expand herbicide degrass spectrum, reduce times for spraying, reduce labour at
This.
Specific embodiment
(1) propanil, metamifop and azoles humulone composition match screening test-laboratory test:
Laboratory experiment is in August, 2018 in October, -2018, in Agricultural University Of Nanjing's herbicide virulence and drug resistance laboratory
It is carried out in greenhouse.
Reagent agent: propanil；Metamifop；Azoles humulone
For trying weeds: barnyard grass (anti-penoxsuam barnyard grass, hereinafter referred to as resistance barnyard grass, ED50Value is 65.90g a.i./hm2, phase
Antagonism multiple is 42.79, and resistance mechanism is target resistance, and target site is alanine -205- valine mutation, seed in
Pick up from the double East Village barnyard grasses 1 in Xuancheng City, Anhui Province, high bridge town, Xuanzhou District in October, 2012)；
Sweet wine intestines (seed picks up from Jiangsu Province, the rice field Zhuan Qiao field side, Yangzhou Jiangdu in September, 2018).
Laboratory test process
1. propanil, metamifop and the proportion screening test drug dose setting of azoles humulone composition
1.1 each single dose settings are as follows:
Propanil (A): 0 (A0), 125 (A1), 250 (A2), 500 (A3), 1000 (A4) g a.i./hm2；
Metamifop (B): 0 (B0), 15 (B1), 30 (B2), 60 (B3), 120 (B4) g a.i./hm2；
Azoles humulone (C): 0 (C0), 3.125 (C1), 6.25 (C2), 12.5 (C3), 25 (C4) g a.i./hm2。
1.2 propanil, metamifop and the proportion screening test drug dose setting of azoles humulone composition are as shown in table 1:
Table is arranged in 1 propanil of table, metamifop and azoles humulone composition proportion screening reagent amount
2.2. propanil, metamifop and azoles humulone composition match screening test process
About 3/4 soil (pH value 5.59, the content of organic matter are packed into 7cm × 7cm × 7cm square plastic feed basin alms bowl
1.4%), plastic tub alms bowl absorbs water to soil moisture saturation from bottom, sows the weed seed of breaking dormancy, every basin sowing respectively
The seed of 25 mature and plumps, surface cover 0.5cm shallow soil layer, after be placed in greenhouse culture (temperature: 25 ± 5 DEG C of daytime, evening
Upper 15 ± 5 DEG C, periodicity of illumination: 10L/14D).After weeds emergence is neat, every basin final singling to 15 plants, continue culture to weeds 3~
Then 4 leaf phases surveyed spray tower (Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture's production, 3WPSH-500D type, disk diameter with raw
50cm, main axis speed 6r/min, spray head aperture 0.3mm, atomisation pressure 0.3MPa, 100 μm of fogdrop diameter, capacity of sprinkler
90mL/min) carry out cauline leaf spraying treatment.Greenhouse is put back to after processing to continue to cultivate, and measurement overground part fresh weight and calculates suppression at 21 days
Rate processed.4 repetitions are arranged in every processing.
21d after medication, weeds fresh weight in each basin of investigation records, the joint after three kinds of composite reagents are evaluated with Cobly method press down
Grass effect, the fresh weight for first calculating separately out single dose propanil, metamifop, azoles humulone and compounding agent antagonism barnyard grass and sweet wine intestines inhibit
Rate, then calculates corresponding survival rate, then by the actual measurement fresh weight survival rate of single dose propanil, metamifop and azoles humulone into
And obtain the theoretical fresh weight survival rate of compounding, theoretical fresh weight survival rate is evaluated into joint compared with compounding surveys fresh weight survival rate
The type of suppression grass effect, the calculation formula of theoretical fresh weight survival rate are as follows:
E1=XYZ/10000
Theoretical fresh weight survival rate after E1 is herbicide propanil in formula, metamifop is compounded with azoles humulone, X is herbicide
Fresh weight survival rate when propanil is applied alone, Y are fresh weight survival rate when herbicide metamifop is applied alone, and Z is herbicide azoles humulone
Fresh weight survival rate when being applied alone.If the actual measurement fresh weight survival rate after E is propanil, metamifop is compounded with azoles humulone, then work as E1-
It is synergistic effect when E value > 10, is antagonism when E1-E value < -10, is added work when E1-E value is located at -10%~10%
With.
Laboratory experiment result is as shown in the table:
2 propanil antagonism barnyard grass of table, sweet wine intestines fresh weight inhibition rate and survival rate
3 metamifop antagonism barnyard grass of table, sweet wine intestines fresh weight inhibition rate and survival rate
4 azoles humulone antagonism barnyard grass of table, sweet wine intestines fresh weight inhibition rate and survival rate
Propanil, metamifop and the azoles humulone composition antagonism barnyard grass of 5 different ratio of table, sweet wine intestines synergy evaluation
Table 5 is it is found that the propanil of different ratio, metamifop and azoles humulone composition antagonism barnyard grass, sweet wine intestines synergy
It is more obvious.These dosage of preventive effect under to(for) resistance barnyard grass, sweet wine intestines is 90% or more.This shows when propanil dosage is in 250-
1000g a.i./hm2, metamifop dosage is in 60-120g a.i./hm2, azoles humulone dosage is in 6.25-25g a.i./hm2
It is best for preventing and kill off field resistance barnyard grass, sweet wine intestines compounding effect in range.
(2) propanil, metamifop and azoles humulone composition are to live streaming water in field rice safety experiment-laboratory experiment:
Laboratory experiment is tested in August, 2018 in October, 2018 in Agricultural University Of Nanjing's herbicide virulence and drug resistance
It is carried out in Room.
Reagent agent: propanil, metamifop, azoles humulone
For studying object: long-grained nonglutinous rice (two excellent 669)；Japonica rice (force fortune round-grained rice 32)
Laboratory experiment process
1. propanil, metamifop and azoles humulone composition are arranged the safety dosage of live streaming water in field rice as follows:
Composition is arranged the safety testing drug dose of rice as follows:
Propanil metamifop azoles humulone: A0B0C0, A1B1C1, A2B2C2, A3B3C3, A4B4C4.
2. propanil, metamifop and azoles humulone composition are to live streaming water in field rice safety experiment process
The composite soil that clay fertilizer ratio is 2: 1 is got out, composite soil pH is 6.1, and the content of organic matter is 1.4% and from being not used
Herbicide is to be packed into the composite soil in the porose small plastic box of 7 × 7 × 7cm and bottom in specification, and bottom Jia Shui absorbs water to soil
Saturation.Full rice paddy seed is selected, is sowed by each small plastic box 15 standards, one layer of fine earth is covered after finishing, is then set
It is grown in heliogreenhouse, temperature setting is 27 DEG C of illumination, 22 DEG C dark, periodicity of illumination 12: 12h (D: L).To rice seedling
After neat, final singling is carried out to it, every basin final singling is to 10 plants.Continue to cultivate after final singling, to paddy growth to 3-4 leaf phase, carries out stem
Leaf spraying treatment.It is surveyed by spraying using the 3WP-2000 type walking of Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture's production is raw by spraying
Tower, main axis speed 96mm/r, spray height 300mm, spray head effective spraying swath 350mm, capacity of sprinkler 390mL/min, walking
Distance 1340mm, medicine liquid volume 30mL.Continue to be put into heliogreenhouse after processing to grow.
21 days after medication, investigation records respectively handles rice fresh weight, and the difference analyzed between various dose with DPS software is aobvious
The selectivity index of work property and calculation composition is combined by the two aspects to evaluate propanil, metamifop and azoles humulone
Safety of the object to rice.
Fresh weight inhibition rate %=(control fresh weight-processing fresh weight)/control fresh weight × 100
The calculation formula of selectivity index are as follows:
Selectivity index (Z)=crop ED10The ED of/weeds90
21 days safety evaluatios to japonica rice after 6 medicine of table
Note: * is the horizontal significance of difference of Duncan duncan's new multiple range method 0.05
21 days safety evaluatios to long-grained nonglutinous rice after 7 medicine of table
Note: * is the horizontal significance of difference of Duncan duncan's new multiple range method 0.05
The selectivity index of 8 propanil of table, metamifop and azoles humulone composition to rice
From table 6, table 7 as can be seen that test of significance is carried out by DPS software, with propanil, metamifop and azoles grass
The increase of one compositions dosage does not increase the inhibiting effect of rice fresh weight significantly, the mean fresh respectively handled with compare
Mean fresh between be not present the significance of difference, from table 8 to find out, propanil, metamifop and azoles humulone composition are to Xian
Rice and japonica rice selectivity index (Z) are respectively 7.62 and 30.01, are greater than 4.Therefore, by propanil, metamifop, azoles humulone group
From the point of view of object is closed to safety evaluatio and the selectivity index evaluation of rice fresh weight, propanil, metamifop and azoles humulone composition
It is safe to paddy growth.
Claims (7)
1. a kind of propanil, metamifop and azoles humulone administer resistance barnyard grass composition and its application, it is characterised in that can prevent and kill off
Using anti-penoxsuam barnyard grass as the direct sowing of rice field weed of sociales.
2. according to claim 1, propanil, metamifop and azoles humulone are administered resistance barnyard grass composition and are matched in suitable dosage
Than under, antagonism barnyard grass and sweet wine intestines preventive effect are 90% or more.
3. according to claim 1, propanil, metamifop and azoles humulone administer resistance barnyard grass composition in experimental setup dosage
Under to rice safety, no phytotoxicity generates.
4. according to claim 1, administering resistance barnyard grass compared to using propanil, metamifop for single dose with azoles humulone and combining
Object can expand degrass spectrum, gramineae weed, broadleaf weeds and Cyperaceae is simultaneous controls.
5. according to claim 1, when propanil dosage is in 250-1000g a.i./hm2, metamifop dosage is in 60-120g
a.i./hm2, azoles humulone dosage is in 6.25-25g a.i./hm2In range, i.e. propanil: metamifop: azoles humulone is in 250-
It is best for preventing and kill off the anti-penoxsuam barnyard grass in field, sweet wine intestines effect when 1000: 60-120: 6.25-25.
6. propanil, metamifop and azoles humulone are that the auxiliary agent allowed on effective component and pesticide is configured to any one dosage form.
7. application according to claim 1, it is characterised in that propanil, metamifop are administered resistance barnyard grass with azoles humulone and combined
The application method of object is cauline leaf spraying treatment.
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Application publication date: 20190830 |