CN113243386A - Binary compound combined rice herbicide containing orthosulfamuron - Google Patents
Binary compound combined rice herbicide containing orthosulfamuron Download PDFInfo
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- CN113243386A CN113243386A CN202110311509.8A CN202110311509A CN113243386A CN 113243386 A CN113243386 A CN 113243386A CN 202110311509 A CN202110311509 A CN 202110311509A CN 113243386 A CN113243386 A CN 113243386A
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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
-
- 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
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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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)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a binary compound combined rice herbicide containing orthosulfamuron, which mainly comprises effective components A and B, wherein the effective component A is orthosulfamuron, the effective component B is one of methoxone dimethylamine salt and methoxone isooctyl ester, and the weight part ratio of the effective component A to the effective component B is 1-20: 10-60, the herbicide is one of dispersible oil suspending agent, water dispersible granule and suspending agent, the herbicide for rice field prepared by the invention has better control effect on barnyard grass, annual broadleaf weeds and nutgrass flatsedge in rice transplanting field, can effectively prevent and kill off weeds such as barnyard grass, edible tulip, sedum lineare, potamogeton indica, monochoria vaginalis, arthrodia, rhizoma alismatis and the like, and has wide weed control spectrum, long lasting period and high safety on rice growth.
Description
Technical Field
The invention belongs to the technical field of rice herbicides, and particularly relates to a binary complex combined rice herbicide containing orthosulfamuron and a preparation method thereof.
Background
The pyriminosulfuron is also named 1- (4, 6-dimethoxypyrimidine-2-yl) -3- [2- (dimethylcarbamyl) phenylamino sulfonyl ] urea, belongs to sulfonylurea herbicides, inhibits the synthesis of plant branched chain amino acid by inhibiting acetolactate synthase of weeds, thereby inhibiting the synthesis of weed proteins, stopping the cell division of weeds and finally killing the weeds.
The methoxone dimethylamine salt is absorbed by the stems and leaves of the weeds, and inhibits the nucleic acid metabolism and the protein synthesis at the top of the weeds, so that the growth points stop growing, and the young leaves cannot stretch until the photosynthesis can not be normally carried out; the medicament is conducted to the lower part of the plant, so that the synthesis of nucleic acid and protein of the stem tissue of the plant is increased, the abnormal division of cells is promoted, the root tip is expanded and loses the absorption capacity, the stem is twisted and deformed, the sieve tube is blocked, the phloem is damaged, and the transportation of organic matters is blocked, so that the normal living capacity of the plant is damaged.
Chemical weeding is one of the major means of controlling weeds in agriculture. In recent years, a number of weeds have become resistant to pesticides due to the large area of single use of some herbicide species. Meanwhile, the weed phase is complex when the weeds occur, various weeds such as gramineous weeds, broad-leaved weeds and nutgrass flatsedge are mixed, and the weeds in the farmland can not be solved by using a single variety of herbicide, so that the defects and the limitation of a certain aspect can be shown. .
The existing herbicide is mostly wettable powder and suspending agent, the wettable powder is easy to generate dust, and the dust is easy to float in the air and be inhaled by workers or fall on the skin surface of the workers in the using process, so that the health of the workers is damaged, the suspending agent is inconvenient to package and transport, and the defects of easy generation of sediment, caking, poor fluidity, wall sticking and the like in storage are overcome.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a binary compound combined rice herbicide containing orthosulfamuron, so as to solve the problems of small weed control spectrum, low time efficiency, insufficient dosage form safety and inconvenience in transportation in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: .
A binary compound combined rice herbicide containing orthosulfamuron mainly comprises active ingredients A and B, wherein the active ingredient A is orthosulfamuron, the active ingredient B is one of methoxone dimethylamine salt and methoxone isooctyl ester, and the weight part ratio of the active ingredients A to the active ingredients B is 1-20: 10-60.
The herbicide is one of dispersible oil suspending agent, water dispersible granule and suspending agent.
The herbicide is in the form of water dispersible granules which mainly comprise an effective component A, an effective component B, an auxiliary agent and a carrier.
The auxiliary agent comprises a wetting agent, a dispersing agent, a stabilizing agent and a binder, and a separating agent is also added into the auxiliary agent.
The separant is a titanium dioxide separant.
The total parts of the water dispersible granules are 1000 parts, the effective component A is 10-200 parts, the effective component B is 100-600 parts, the wetting agent is 10-50 parts, the dispersing agent is 5-25 parts, the isolating agent is 15-90 parts, the stabilizing agent is 10-50 parts, the binder is 5-30 parts, and the rest parts are filled with the carrier.
The main effective components, wetting agent, dispersant, separant, stabilizer, binder and carrier are mixed uniformly, then pulverized by air flow to specified fineness, added with water, stirred, granulated, dried and sieved to obtain the herbicide, wherein the granulation method is one of disc granulation, fluidized bed granulation and extrusion granulation.
An application of a binary compound combined rice herbicide containing orthosulfamuron in preventing and removing annual weeds in rice transplanting fields.
Compared with the prior art, the invention provides a binary compound combined rice herbicide containing orthosulfamuron, which has the following beneficial effects:
1. the invention has better control effect on barnyard grass, annual broadleaf weeds and nutgrass flatsedge in the rice transplanting field, can effectively prevent and kill off the weeds such as barnyard grass, edible tulip, monochoria japonica, eyeweed, monochoria vaginalis, arthroncus, rhizoma alismatis and the like, and has wide weed control spectrum, long lasting period and high safety on rice growth.
2. The herbicide is prepared into water dispersible granules, the main effective components, the wetting agent, the dispersing agent, the isolating agent, the stabilizing agent, the binding agent, the filler or the carrier are uniformly mixed, then the mixture is crushed to the specified fineness by airflow, and then the mixture is stirred and granulated by adding water, and finally the herbicide is obtained by drying and sieving.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1: the composition comprises, by weight, 10 parts of orthosulfamuron, 600 parts of methoxone dimethylamine salt, 10 parts of wetting agent, 5 parts of dispersing agent, 15 parts of isolating agent, 10 parts of stabilizing agent and 5 parts of binding agent, wherein the rest parts are filled with 1000 parts of filler or carrier;
example 2: 60 parts of orthosulfamuron, 500 parts of methoxone isooctyl ester, 20 parts of wetting agent, 10 parts of dispersing agent, 30 parts of isolating agent, 20 parts of stabilizing agent and 10 parts of binding agent, wherein the rest parts are filled with 1000 parts of filler or carrier;
example 3: 90 parts of orthosulfamuron, 400 parts of methoxone dimethylamine salt, 30 parts of wetting agent, 15 parts of dispersing agent, 45 parts of isolating agent, 30 parts of stabilizing agent and 15 parts of binding agent, wherein the rest parts are filled with 1000 parts of filler or carrier;
example 4: 120 parts of orthosulfamuron, 300 parts of MCPA, 40 parts of wetting agent, 20 parts of dispersing agent, 60 parts of isolating agent, 40 parts of stabilizing agent and 20 parts of bonding agent, wherein the rest parts are filled with 1000 parts of filler or carrier;
example 5: 200 parts of orthosulfamuron, 100 parts of methoxone dimethylamine salt, 50 parts of wetting agent, 25 parts of dispersing agent, 90 parts of isolating agent, 50 parts of stabilizing agent and 30 parts of bonding agent, wherein the rest parts are filled with 1000 parts of filler or carrier;
comparative example 1: clear water;
comparative example 2: 200 parts of orthosulfamuron;
comparative example 3: 600 parts of dimethyl tetrachlorodimethylamine salt;
comparative example 4: 600 parts of methoxone isooctyl ester.
Test experiment 1
1. Laboratory apparatus
A controllable illumination incubator; POTTER precision laboratory spray tower; electronic balance (sensory 0.1 mg); a micropipette gun, and the like.
2. Experimental procedure
(1) Representative sensitive weed seeds of barnyard grass and nutgrass flatsedge are selected according to a single-agent herbicide controlling spectrum and cultured until 1 leaf and 1 heart are reserved. Treating the stems and leaves of the weeds with the selected numbers, placing the treated stems and leaves in an illumination incubator for 7 days at room temperature, calculating the control effect (fresh weight), then calculating the medium-concentration inhibition EC50 (95% confidence limit) by using a least square method, and calculating the cotoxicity coefficient (CTC) by using a Sun Yunpei method; the co-toxicity coefficient (CTC) is more than or equal to 120 and shows a synergistic effect; the co-toxicity coefficient (CTC) is less than or equal to 80, and the antagonism is shown; 80 < co-toxicity coefficient (CTC) < 120 showed additive effects.
The virulence index (ATI) was measured as (standard agent EC 50/test agent EC50) × 100.
Theoretical virulence index (TTI) ═ virulence index of a x percent a in the mixture) + (virulence index of B x percent B in the mixture.
Co-toxicity coefficient (CTC) × 100 [ measured toxicity index (ATI) of the mixture)/Theoretical Toxicity Index (TTI) of the mixture ].
(2) Number 1: spraying a herbicide which comprises 10 parts of orthosulfamuron, 600 parts of methoxone dimethylamine salt, 10 parts of wetting agent, 5 parts of dispersing agent, 15 parts of isolating agent, 10 parts of stabilizing agent and 5 parts of binding agent;
number 2: spraying herbicide comprising 60 parts of orthosulfamuron, 500 parts of methoxone isooctyl ester, 20 parts of wetting agent, 10 parts of dispersing agent, 30 parts of isolating agent, 20 parts of stabilizing agent and 10 parts of binder;
pair number 3: the paddy field is sprayed with herbicide comprising 90 parts of orthosulfamuron, 400 parts of methoxone dimethylamine salt, 30 parts of wetting agent, 15 parts of dispersing agent, 45 parts of separant, 30 parts of stabilizer and 15 parts of binder;
number 4: spraying herbicide comprising orthosulfamuron 120 parts, isooctyl methoxone 300 parts, wetting agent 40 parts, dispersing agent 20 parts, isolating agent 60 parts, stabilizer 40 parts and adhesive 20 parts,
number 5: spraying herbicide comprising orthosulfamuron 200 parts, methoxone salt 100 parts, wetting agent 50 parts, dispersing agent 25 parts, isolating agent 90 parts, stabilizer 50 parts and adhesive 30 parts;
number 6: spraying clear water;
number 7: spraying 200 parts of herbicide containing orthosulfamuron;
number 8: spraying 600 parts of herbicide by using methoxone dimethylamine salt;
number 9: 600 parts of herbicide are sprayed with the methoxone isooctyl ester.
3. Results of the experiment (as shown in tables 1-2)
| Experimental group | EC | ATI | TTI | CTC |
| Number 1 | 2.65 | 18.78 | 14.89 | 127.98 |
| Number 2 | 1.75 | 28.67 | 22.98 | 134.67 |
| Number 3 | 1.37 | 36.84 | 29.57 | 123.52 |
| Number 4 | 0.71 | 71.09 | 53.07 | 133.78 |
| Number 5 | 0.41 | 119.56 | 73.20 | 144.89 |
| Number 6 | / | / | / | / |
| Number 7 | 0.49 | 100 | / | / |
| Number 8 | 7.45 | 5.09 | / | / |
| Number 9 | 7.40 | 5.01 | / | / |
TABLE 1 test data for barnyard grass control
| Experimental group | EC | ATI | TTI | CTC |
| Number 1 | 1.65 | 29.78 | 19.59 | 135.76 |
| Number 2 | 0.75 | 48.56 | 24.08 | 151.33 |
| Number 3 | 1.59 | 70.98 | 32.54 | 167.50 |
| Number 4 | 0.48 | 108.78 | 67.87 | 175.94 |
| Number 5 | 0.33 | 122.79 | 81.29 | 169.32 |
| Number 6 | / | / | / | / |
| Number 7 | 0.36 | 100 | / | / |
| Number 8 | 4.34 | 8.79 | / | / |
| Number 9 | 4.37 | 8.81 | / | / |
TABLE 2 control of Cyperus rotundus L.data
Test experiment 2
1. Laboratory site
Experiments are carried out on rice transplanting fields with basically the same growth conditions.
2. Experimental procedure
(1) Numbering the paddy fields 1-8 respectively, and applying the herbicide in the germination period of the weeds in the fields and in the 1-2 leaf period of the weeds;
(2) spraying herbicide with the amount of orthosulfamuron being 10 parts, the amount of methoxone dimethylamine salt being 600 parts, the amount of wetting agent being 10 parts, the amount of dispersing agent being 5 parts, the amount of separant being 15 parts, the amount of stabilizer being 10 parts and the amount of binder being 5 parts to the paddy field with the number 1;
spraying herbicide with 60 parts of orthosulfamuron, 500 parts of methoxone isooctyl ester, 20 parts of wetting agent, 10 parts of dispersing agent, 30 parts of separant, 20 parts of stabilizer and 10 parts of binder to the paddy field with the number 2;
spraying herbicide with the amount of 90 parts of orthosulfamuron, 400 parts of methoxone dimethylamine salt, 30 parts of wetting agent, 15 parts of dispersing agent, 45 parts of separant, 30 parts of stabilizer and 15 parts of binder to the paddy field with the number 3;
spraying herbicide comprising pyriminosulfuron 120 parts, isooctyl methoxone 300 parts, wetting agent 40 parts, dispersant 20 parts, isolating agent 60 parts, stabilizer 40 parts and adhesive 20 parts to paddy field No. 4,
spraying herbicide with the amount of 200 parts of orthosulfamuron, 100 parts of methoxone dimethylamine salt, 50 parts of wetting agent, 25 parts of dispersing agent, 90 parts of separant, 50 parts of stabilizer and 30 parts of binder to the paddy field with the number 5;
spraying clear water to the paddy field with the number 6;
spraying 200 parts of herbicide containing orthosulfamuron to the paddy field with the number 7;
spraying 600 parts of herbicide by using the methoxone dimethylamine salt to the paddy field with the number 8;
600 parts of herbicide prepared by spraying methoxone isooctyl ester on the paddy field with the number 9
Three identical sets of experiments were set for each number to calculate the mean, and the mean of the weed control was calculated for each number after 7, 14 and 21 days, respectively.
3. The implementation steps are as follows:
a. applying the pesticide in the seedling emergence stage of the field weeds.
b. When the paddy field adopts unmanned aerial vehicle to spout and apply the herbicide, mix more than 5 liters of water per mu, evenly spout the application of medicine, pour mu dosage into the unmanned aerial vehicle medicine case, the staff carries out the operation to the paddy field through controlling unmanned aerial vehicle.
c. Keeping the water layer in the field for 3-5 cm during pesticide application, keeping the water for 5-7 days after pesticide application, and only irrigating without discharging to avoid the water layer submerging rice seedling core leaves, and then recovering normal field management.
4. Results of the experiment
TABLE 3 test data for rice transplanting field
Test experiments 1 and 2 lead to the conclusion
As shown in tables 1 to 3, the control effect of the compounded combined rice herbicide disclosed by the invention on weeds is obviously improved, the lasting time is long, the phytotoxicity rate is low, and experimental results are compared to show that the control effect of the herbicide prepared from orthosulfamuron and dipentamethylenetetramine or orthosulfamuron and MCPA is better than that of a single component, particularly the compounding ratio of the orthosulfamuron to MCPA or the MCPA to MCPA is 1-20: the control effect is increased most obviously by 20-60 percent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A binary compound combined type rice herbicide containing orthosulfamuron is characterized in that: the herbicide mainly comprises effective components A and B, wherein the effective component A is orthosulfamuron, the effective component B is one of methoxone dimethylamine salt and methoxone isooctyl ester, and the weight part ratio of the effective component A to the effective component B is 1-20: 10-60.
2. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 1, which is characterized in that: the herbicide is one of dispersible oil suspending agent, water dispersible granule and suspending agent.
3. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 1, which is characterized in that: the herbicide is in the form of water dispersible granules which mainly comprise an effective component A, an effective component B, an auxiliary agent and a carrier.
4. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 3, which is characterized in that: the auxiliary agent comprises a wetting agent, a dispersing agent, a stabilizing agent and a binder, and a release agent is also added into the auxiliary agent.
5. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 4, which is characterized in that: the separant is a titanium dioxide separant.
6. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 4, which is characterized in that: the total parts of the water dispersible granules are 1000 parts, the effective component A is 10-200 parts, the effective component B is 100-600 parts, the wetting agent is 10-50 parts, the dispersing agent is 5-25 parts, the isolating agent is 15-90 parts, the stabilizing agent is 10-50 parts, the binder is 5-30 parts, and the rest parts are filled with the carrier.
7. The binary compound combined type rice herbicide containing orthosulfamuron according to claim 5, which is characterized in that: the main effective components, wetting agent, dispersant, separant, stabilizer, binder and carrier are mixed uniformly, then pulverized by air flow to specified fineness, added with water and stirred, granulated, finally dried and sieved to obtain the herbicide, wherein the granulation method is one of disc granulation, fluidized bed granulation and extrusion granulation.
8. The application of the binary compound combined type rice herbicide containing orthosulfamuron in claim 1 in preventing and removing annual weeds in transplanted rice fields.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110311509.8A CN113243386A (en) | 2021-03-24 | 2021-03-24 | Binary compound combined rice herbicide containing orthosulfamuron |
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| CN202110311509.8A CN113243386A (en) | 2021-03-24 | 2021-03-24 | Binary compound combined rice herbicide containing orthosulfamuron |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578046A (en) * | 2006-12-11 | 2009-11-11 | 伊萨格罗股份公司 | Herbicidal compositions |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578046A (en) * | 2006-12-11 | 2009-11-11 | 伊萨格罗股份公司 | Herbicidal compositions |
| CN103636667A (en) * | 2006-12-11 | 2014-03-19 | Isem有限责任公司 | Herbicidal compositions |
Non-Patent Citations (1)
| Title |
|---|
| 徐汉虹: "《植物化学保护学》", 30 September 2007 * |
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