CN111226959A - Composition for controlling and transplanting barnyard grass weeds in paddy field by using pyraclonil and butachlor and application of composition - Google Patents
Composition for controlling and transplanting barnyard grass weeds in paddy field by using pyraclonil and butachlor and application of composition Download PDFInfo
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- CN111226959A CN111226959A CN202010199319.7A CN202010199319A CN111226959A CN 111226959 A CN111226959 A CN 111226959A CN 202010199319 A CN202010199319 A CN 202010199319A CN 111226959 A CN111226959 A CN 111226959A
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- butachlor
- pyraclonil
- weeds
- barnyard grass
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- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 title claims abstract description 53
- IHHMUBRVTJMLQO-UHFFFAOYSA-N Pyraclonil Chemical compound C#CCN(C)C1=C(C#N)C=NN1C1=NN(CCCC2)C2=C1Cl IHHMUBRVTJMLQO-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 241000192043 Echinochloa Species 0.000 title claims abstract 10
- 240000007594 Oryza sativa Species 0.000 claims abstract description 27
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 27
- 235000009566 rice Nutrition 0.000 claims abstract description 27
- 241000196324 Embryophyta Species 0.000 claims abstract description 26
- 230000003405 preventing effect Effects 0.000 claims abstract description 9
- 241000234646 Cyperaceae Species 0.000 claims abstract description 3
- 238000001228 spectrum Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 5
- 238000009472 formulation Methods 0.000 claims description 2
- 231100000674 Phytotoxicity Toxicity 0.000 claims 1
- 239000002671 adjuvant Substances 0.000 claims 1
- 239000004009 herbicide Substances 0.000 abstract description 19
- 230000002363 herbicidal effect Effects 0.000 abstract description 17
- 239000000126 substance Substances 0.000 abstract description 4
- 206010059866 Drug resistance Diseases 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 1
- 241000894007 species Species 0.000 abstract 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 31
- 238000005507 spraying Methods 0.000 description 11
- 230000005764 inhibitory process Effects 0.000 description 9
- 239000003814 drug Substances 0.000 description 6
- 238000009331 sowing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000009533 lab test Methods 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000011076 safety test Methods 0.000 description 4
- 240000002582 Oryza sativa Indica Group Species 0.000 description 3
- 240000008467 Oryza sativa Japonica Group Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 244000025670 Eleusine indica Species 0.000 description 2
- 235000014716 Eleusine indica Nutrition 0.000 description 2
- 108020001991 Protoporphyrinogen Oxidase Proteins 0.000 description 2
- 102000005135 Protoporphyrinogen oxidase Human genes 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000001647 drug administration Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000003359 percent control normalization Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 235000001602 Digitaria X umfolozi Nutrition 0.000 description 1
- 235000017898 Digitaria ciliaris Nutrition 0.000 description 1
- 235000005476 Digitaria cruciata Nutrition 0.000 description 1
- 235000006830 Digitaria didactyla Nutrition 0.000 description 1
- 235000005804 Digitaria eriantha ssp. eriantha Nutrition 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 244000190906 Echinochloa crusgalli var. mitis Species 0.000 description 1
- 241001553700 Euphorbia lathyris Species 0.000 description 1
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 240000003915 Lophatherum gracile Species 0.000 description 1
- 240000000178 Monochoria vaginalis Species 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- -1 aryloxy phenoxy propionate Chemical compound 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
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Classifications
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- 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
- A01N37/26—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 containing the group; Thio analogues thereof
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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 composition for controlling and transplanting barnyard grass weeds in a rice field by using pyraclonil and butachlor and application thereof. The herbicide composition can effectively prevent and kill gramineous weeds in transplanted paddy fields with barnyard grass as dominant species, and is safe to rice; the dosage can be obviously reduced, the application times can be reduced, and the chemical prevention and control cost in the field can be reduced; the generation and reoccurrence of the drug resistance of the weeds are delayed; can control part of broadleaf weeds and cyperaceae weeds, expand the weed control spectrum of the herbicide and the like. Pyraclonil and butachlor are a feasible herbicide composition for preventing and killing gramineous weeds in transplanted paddy fields at present.
Description
Technical Field
The invention belongs to the technical field of plant protection, and relates to a herbicide composition taking pyraclonil and butachlor as effective components, which is used for preventing and killing barnyard weeds in transplanted paddy fields.
Background
China has a long history of rice cultivation, and at least 7000 years of history are available today. More than 50% of the population in China takes rice as staple food, and the rice consumption is very large every year. Meanwhile, the planting area and the production of rice in China are in the world leading level, the annual sowing area is about 3000 hectares, which is only lower than that of the second place in India, more than 2 hundred million tons of rice are produced annually, and the first place in the world is in 113 rice planting countries all over the world.
Weeds in paddy fields seriously affect the yield and quality of rice, and in particular, barnyard grass weeds, such as barnyard grass (Echinochloa crus-galli), barnyard grass (E.crus-galli var. mitis), palea barnyard grass (E.glarescens), and the like, are the most serious. For a long time, the control of barnyard grass mainly depends on chemical herbicide to prevent and kill off, and has the advantages of time and labor saving, good benefit and the like. But the long-term use of the chemical herbicide can easily cause drug resistance, the actual prevention effect in the field is reduced, the times of using the herbicide are more, and the dosage is larger. Therefore, it is a problem to be faced with how to effectively control barnyard grass weeds in paddy fields and reduce the amount of the barnyard grass used.
Pyraclonil belongs to protoporphyrinogen oxidase (PPO) inhibitors, is a contact herbicide, is brown and withered due to yellow leaf, necrosis, withering or drying dehydration after being absorbed by the roots and basal parts of weeds, has outstanding control effect on annual weeds such as barnyard grass, Chinese iris, felt of cattle, monochoria vaginalis and arthroncus, and has poor control effect on weeds such as lophatherum gracile and bud.
Butachlor is an aryloxy phenoxy propionate herbicide, belongs to an ACCase inhibitor, can inhibit the synthesis of plant fatty acid, can well prevent and kill off most annual gramineous weeds, and can inhibit the growth of sensitive varieties after being applied for 3 to 5 days after the herbicide, wherein the foliar of the sensitive varieties is faded green. Different from most of the herbicides, butachlor is safe for rice, can effectively prevent and kill main weeds in paddy fields, such as barnyard grass, moleplant seeds, crab grass and goosegrass, and is mainly used for weeding in transplanted and direct-seeded paddy fields.
Disclosure of Invention
The invention aims to prevent and kill barnyard grass weeds in transplanted paddy fields by using the herbicide composition.
The invention realizes the aim through the following technical scheme:
the herbicide composition has the main components of pyraclonil and butachlor and is used in preventing and killing barnyard grass weed in transplanted rice field.
The medicament using method comprises the following steps: and (3) applying the pesticide 5-7 days after the rice is transplanted, spraying or throwing the pesticide, and keeping a shallow water layer of 2 cm in a paddy field.
Compared with the existing common herbicide for paddy fields, the herbicide composition has the following advantages:
(1) has obvious synergistic effect on grassy weeds such as barnyard grass and the like, and has obviously better preventing and removing effect than the preventing effect when single agent is applied independently.
(2) Can obviously reduce the dosage, reduce the dosage frequency and reduce the chemical preventing and removing cost in the field.
(3) Can delay the generation and reoccurrence of drug resistance of weeds.
(4) Can control part of broadleaf weeds and cyperaceae weeds, and expand the weed control spectrum of the herbicide.
Drawings
FIG. 1 shows ED inhibition of barnyard grass by pyraclonil + butachlor composition90And (3) an isobologram, wherein a coordinate point on the curve, which is farthest away from a theoretical isobologram line segment, is the optimal proportion of the pyraclonil and butachlor composition for preventing and killing barnyard grass.
Detailed Description
(I) composition proportion screening test of pyraclonil and butachlor-laboratory test:
the laboratory tests were carried out in 2019, months 7-8, in a sunlight greenhouse.
Reagent to be tested: pyraclonil; butachlor
The tested weeds: barnyard grass (collected in 10 months of 2018 from Qiyanqianjin Xixiu district, Anshun, Guizhou province).
Laboratory test procedure
1. Dose setting of medicament for screening test of proportion of composition of pyraclonil and butachlor
1.1 Each single dose setting is as follows:
pyraclonil (a): 0(A0), 10.13(A1), 20.25(A2), 40.5(A3), 81(A4), 162(A5) g a.i./hm2；
Butachlor (B): 0(B0), 25(B1), 50(B2), 100(B3), 200(B4), 400(B5) g a.i./hm2。
1.2 the formulation of pyraclonil and butachlor composition screening test medicament dose settings are shown in table 1:
TABLE 1 Diazachlor and butachlor composition proportioning screening dosage setting table
2. Screening test process for proportion of pyraclonil and butachlor composition
7 months and 7 days in 2019, barnyard grass is sown, organic soil without herbicide is filled into a plastic cup with the specification of 7 multiplied by 7cm, the pH value is 6.7, the organic matter content is 1.4 percent, and water is added until the organic soil is saturated. Selecting barnyard grass seeds with plump seeds, sowing 20 seeds in each plastic cup, covering a layer of fine soil on the seeds, adding water until the seeds are saturated, and culturing in a greenhouse. After 48h, the sown barnyard grass was soil-treated by spraying, and an equal amount of clear water was sprayed as a control, and each treatment was repeated 4 times. The spraying adopts a 3WP-2000 model walking type biological measurement spraying tower produced by Nanjing agricultural mechanization research institute of agricultural department, the rotation speed of a main shaft is 96mm/r, the spraying height is 300mm, the effective spraying amplitude of a spray head is 350mm, the flow rate of the spray head is 390mL/min, the walking distance is 1340mm, the volume of a liquid medicine is 20mL, and the device is placed in a greenhouse for growth (the temperature is 27 ℃ in the daytime and 22 ℃ at night).
The fresh weight of the barnyard grass in each plastic box is investigated and recorded after 30 days of medication, the combined weed suppression effect of the pyraclonil and the butachlor is evaluated by an equivalent line method, and the inhibition rate of the single dose of the pyraclonil, the butachlor and the combination of the doses of the pyraclonil and the butachlor on the fresh weight of the barnyard grass is calculated respectively.
Fresh weight inhibition ratio (% control fresh weight-treated fresh weight)/control fresh weight × 100
Then DPS software is used for carrying out professional statistics to obtain the 90 percent dosage (namely ED) of the single agent of the pyraclonil and the butachlor for inhibiting the barnyard grass90Value), ED of cloacan inhibition by the corresponding pyraclonil at each dose treatment of butachlor90Values, and ED of butachlor inhibiting barnyard grass corresponding to each dose treatment of pyraclonil90The value is obtained. The dose of the pyraclonil is used as an abscissa and the dose of the butachlor is used as an ordinate, and ED of two single-dose barnyard grass is marked on a coordinate graph90The coordinate points of the values are connected in parallel to form a line segment, and the line segment is used as the theoretical mixed application of the two herbicides of the pyraclonil and the butachlorThe equivalent line of (a). The ED of pyraclonil at each butachlor dose and butachlor dose is then plotted in a graph90Value composition of the coordinate points, ED of butachlor at each dose of pyraclonil and at each dose of pyraclonil90And (4) simulating a curve by using coordinate points formed by the values. If these coordinate points are below the theoretical equivalent line, the effect is synergistic, above that the antagonism is obtained, and the addition is obtained when the coordinate points are close to the theoretical equivalent line. Finding out the coordinate point on the curve which is farthest away from the theoretical equivalent line segment, namely the optimal proportion of the pyraclonil and butachlor composition for preventing and killing barnyard grass.
The results of the laboratory tests are shown in the following table:
TABLE 2 fresh weight inhibition of Echinochloate and butachlor compositions on barnyard grass (%)
As can be seen from Table 2 and the accompanying drawings of the specification, both the pyraclonil and the butachlor have high activity on the barnyard grass, and the combination of the pyraclonil and the butachlor has a synergistic effect on the barnyard grass. As can be seen from the fresh weight inhibition effect of the composition of the pyraclonil and the butachlor with different proportions in the table 2, the dose of the pyraclonil is 162g a.i./hm2The dosage of the butachlor is 400g a.i./hm2When the fresh weight inhibition rate of the barnyard grass is close to or reaches 100 percent, while the composition of the pyraclonil and the butachlor in the attached drawings of the specification can inhibit the barnyard grass ED90As can be seen from the isobologram, the optimum ratio of the pyraclonil and butachlor for controlling the barnyard grass is 1: 1.25 according to the evaluation of the isobologram method.
Safety test of (di) pyraclonil and butachlor composition on paddy field rice
The indoor experiments were carried out in the sunlight greenhouse from 8 months in 2019 to 9 months in 2019.
Reagent to be tested: butachlor; pyraclonil
Test work: japonica rice (Huai rice No. 5); indica rice (Hanyou 73)
Laboratory experiment process
1. Safety test agent dose setting of pyraclonil and butachlor composition for directly sowing paddy rice
The safety test of the composition on rice the dose settings of the agents are as follows:
pyraclonil + butachlor: 0+0, 10.13+25, 20.25+50, 40.5+100, 81+200, 162+400g a.i./hm2
3. Safety test process of pyraclonil and butachlor composition for directly sowing paddy field rice
Organic soil without herbicide is filled into a plastic cup with the specification of 7 multiplied by 7cm, the pH value is 6.7, and the organic matter content is 1.4%. Selecting rice seeds with full seeds, sowing 10 seeds in each plastic cup, covering a layer of fine soil on the seeds in the plastic cups for sowing the rice, adding water until the seeds are saturated, and culturing in a greenhouse. After 48h, the sown rice was soil-treated by spraying, and an equal amount of clear water was sprayed as a control, and each treatment was repeated 4 times. The spraying adopts a 3WP-2000 model walking type biological measurement spraying tower produced by Nanjing agricultural mechanization research institute of agricultural department, the rotation speed of a main shaft is 96mm/r, the spraying height is 300mm, the effective spraying amplitude of a spray head is 350mm, the flow rate of the spray head is 390mL/min, the walking distance is 1340mm, the volume of a liquid medicine is 20mL, and the device is placed in a greenhouse for growth (the temperature is 27 ℃ in the daytime and 22 ℃ at night).
30 days after the application of the composition, the fresh weight of each treated rice is recorded by investigation, the DPS software is used for analyzing the significance of the difference between different dosages and calculating the selectivity index of the composition, and the safety of the composition of the pyraclonil and the butachlor on the rice is evaluated by the two aspects.
Fresh weight inhibition ratio (% control fresh weight-treated fresh weight)/control fresh weight × 100
The selectivity index is calculated as:
selectivity index (Z) versus ED for crop plants10ED of weeds90
TABLE 3 evaluation of safety of japonica rice 30 days after drug administration
Note: significance of difference at 0.05 level of Duncan New Complex Difference method
TABLE 4 evaluation of safety of indica rice 30 days after drug administration
Note: significance of difference at 0.05 level of Duncan New Complex Difference method
TABLE 5 Selectivity index of pyraclonil and butachlor compositions for rice
As can be seen from tables 3 and 4, the significant test performed by the DPS software shows no significant increase in the inhibition effect on the fresh weight of rice with the increase in the dose of the composition of pyraclonil and butachlor, and there is no significant difference between the average fresh weight of each treatment and the average fresh weight of the control, and as can be seen from table 5, the composition of pyraclonil and butachlor has a selectivity index for japonica rice of 14.52 and a selectivity index for indica rice of 7.54, which is greater than 4. Therefore, the composition of pyraclonil and butachlor is safe for rice growth in view of safety evaluation and selectivity index evaluation of the composition of pyraclonil and butachlor on fresh weight of rice.
Claims (7)
1. A composition of pyraclonil and butachlor for controlling the weeds in barnyard grass in transplanted paddy field and its application are disclosed, which features that the weeds in paddy field can be controlled.
2. The composition of claim 1, wherein the composition of pyraclonil and butachlor for controlling and transplanting barnyard grass weeds in the paddy field has a control effect on barnyard grass of more than 90% in a proper dosage ratio.
3. The composition of claim 1, wherein the composition of pyraclonil and butachlor for controlling and transplanting barnyard grass weeds in paddy fields is safe for paddy rice and has no phytotoxicity under the experimental setting dosage.
4. According to the claim 1, compared with the single-dose application, the composition for controlling the barnyard grass weeds in the transplanted paddy field by using the pyraclonil and the butachlor can expand the weed control spectrum and control the gramineous weeds, the broadleaf weeds and the cyperaceae weeds.
5. The composition according to claim 1, wherein the dose of the pyraclonil is 40.5-162 g a.i./hm2The dosage of the butachlor is 50-200g a.i./hm2Within the range of 1: 1.25, the pyraclonil and butachlor have the best effect on preventing and killing barnyard grass in fields.
6. The composition of pyraclonil and butachlor for controlling and transplanting barnyard grass weeds in paddy fields as claimed in claim 1, wherein the composition is prepared from pyraclonil and butachlor as effective components and any one of the formulations of the composition and the agriculturally acceptable adjuvants.
7. The use as claimed in claim 1, characterised in that the method of use of the composition of pyraclonil with butachlor for the treatment of barnyard weeds in transplanted paddy fields is a soil spray treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010199319.7A CN111226959A (en) | 2020-03-16 | 2020-03-16 | Composition for controlling and transplanting barnyard grass weeds in paddy field by using pyraclonil and butachlor and application of composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010199319.7A CN111226959A (en) | 2020-03-16 | 2020-03-16 | Composition for controlling and transplanting barnyard grass weeds in paddy field by using pyraclonil and butachlor and application of composition |
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| CN111226959A true CN111226959A (en) | 2020-06-05 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255750A (en) * | 2014-09-10 | 2015-01-07 | 广东中迅农科股份有限公司 | Herbicide composition containing pyraclonil and pretilachlor |
| CN105901005A (en) * | 2016-05-16 | 2016-08-31 | 河北博嘉农业有限公司 | Weeding composition containing pyraclonil |
| CN106857575A (en) * | 2017-02-27 | 2017-06-20 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing pyraclonil and butachlor |
-
2020
- 2020-03-16 CN CN202010199319.7A patent/CN111226959A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255750A (en) * | 2014-09-10 | 2015-01-07 | 广东中迅农科股份有限公司 | Herbicide composition containing pyraclonil and pretilachlor |
| CN105901005A (en) * | 2016-05-16 | 2016-08-31 | 河北博嘉农业有限公司 | Weeding composition containing pyraclonil |
| CN106857575A (en) * | 2017-02-27 | 2017-06-20 | 南京华洲药业有限公司 | A kind of Herbicidal combinations and its application containing pyraclonil and butachlor |
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Application publication date: 20200605 |