CN112704071A - Weeding composition and herbicide for cotton field and corn field - Google Patents
Weeding composition and herbicide for cotton field and corn field Download PDFInfo
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- CN112704071A CN112704071A CN202011607398.7A CN202011607398A CN112704071A CN 112704071 A CN112704071 A CN 112704071A CN 202011607398 A CN202011607398 A CN 202011607398A CN 112704071 A CN112704071 A CN 112704071A
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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
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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<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
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Abstract
The invention relates to the technical field of pesticides, and particularly relates to a weeding composition for cotton fields and corn fields and a herbicide. The weeding composition comprises, by weight, 0.1-90 parts of pendimethalin and 0.1-90 parts of fluometuron. The pendimethalin and the fluometuron have obvious synergistic effect on the control of weeds in cotton fields and corn fields through a plurality of different action modes, are obviously superior to the effects of pendimethalin single-dose, fluometuron single-dose, pendimethalin-diuron and other preparations, can effectively improve the control of the weeds in the cotton fields and the corn fields while effectively reducing the dosage of different preparations such as pendimethalin and the like, delay the resistance of the pendimethalin and the fluometuron to the weeds, reduce the production cost, and are a novel, high-efficiency, low-toxicity and low-residue cotton and corn herbicide composition.
Description
Technical Field
The invention relates to the technical field of pesticides, and particularly relates to a weeding composition for cotton fields and corn fields and a herbicide.
Background
Cotton is an important multipurpose economic crop, can be made into fabrics of various specifications, and can also be used for extracting edible oil by a certain process, so that the cotton plays an important role in the agricultural and economic patterns of China. Cotton field weed and cotton compete for nutrients in land, diseases and insect pests are spread, production cost is increased, annual loss is 14% -16%, and cotton yield and quality are reduced seriously; corn is the main grain and forage crop in China, and the sowing area of the corn accounts for 1/4 of the total area of the grain crop in China. The occurrence and harm of weeds have obvious influence on the yield of the corn and the planting benefit of the corn.
Broad-leaved weeds and gramineous weeds are commonly harmed in cotton fields and corn fields in China, wherein the weeds such as crab grass, black nightshade, redroot amaranth, purslane, eleusine indica, goosefoots and the like are widely distributed and have the greatest harm, and the requirement of chemical weeding in the cotton fields and the corn fields is difficult to meet by using a certain herbicide singly.
Pendimethalin (pendimethalin) and dinitroaniline herbicides mainly inhibit mitosis and differentiation of cells and destroy nuclear division, and pendimethalin is considered as a nuclear poison, is one of herbicides widely applied to cotton fields and corn fields, has good control effect on common gramineous weeds such as crabgrass, goosegrass and green bristlegrass in the cotton fields and the corn fields, but has unsatisfactory control effect on broadleaf weeds such as amaranthus retroflexus, purslane and gooseberries, and is easy to cause resistance after being used for many years.
Fluometuron (fluometuron), chemical name: 1, 1-dimethyl-3- (3-trifluoromethylphenyl) urea belongs to a substituted urea selective herbicide, has an action mechanism of mainly inhibiting Hill reaction in plant photosynthesis, is used for preventing and killing annual gramineous weeds and broad leaved weeds in fields such as cotton, sugarcane and the like, is not widely applied to fields such as cotton and corn, and is worthy of research and application.
At present, no report of a cotton and corn weeding composition consisting of fluometuron and pendimethalin exists.
Disclosure of Invention
In view of the above, the present invention provides a herbicidal composition and herbicide for cotton and corn fields. The effective components of the herbicide composition for cotton and corn comprise pendimethalin and fluometuron, and the herbicide composition has obvious synergistic effect on the control of weeds in cotton fields and corn fields.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a weeding composition for cotton fields and corn fields, which comprises, by weight, 0.1-90 parts of pendimethalin and 0.1-90 parts of fluometuron.
Preferably, the weeding composition comprises 1-50 parts of pendimethalin and 1-60 parts of fluometuron by weight.
Preferably, the weeding composition comprises 5-50 parts of pendimethalin and 10-55 parts of fluometuron by weight.
More preferably, the herbicidal composition consists of, in parts by weight, pendimethalin 20 parts and fluroxypyr 30.3 parts.
In another embodiment provided by the present invention, the composition consists of 50 parts by weight of pendimethalin and 10 parts by weight of fluroxypyr.
In another embodiment provided by the present invention, the composition consists of, by weight, 5 parts pendimethalin and 55 parts fluridone.
The invention also provides the application of the herbicide composition in preparing herbicides for cotton fields and corn fields.
Preferably, the herbicide composition of the invention is applied for a period of time in which the cotton boll opening rate is more than 40%.
Preferably, the herbicide composition of the present invention is applied for a period of time in which the cotton boll opening rate is 40% to 50%.
The invention provides a herbicide, which comprises the weeding composition and an agriculturally and pharmaceutically acceptable auxiliary agent.
Preferably, the herbicide is in the form of an aqueous suspension, an aqueous dispersion granule or a dispersible oil suspension.
The dosage form is not limited thereto, and those skilled in the art will recognize dosage forms as falling within the scope of the present invention.
Preferably, the components of the aqueous suspension agent in percentage by weight are as follows: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 5-15% of dimethyl sulfoxide, 2-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water which is complemented to 100%;
the preparation method of the water suspending agent comprises the following steps: diluting fluometuron with dimethyl sulfoxide, adding pendimethalin to obtain a mixed solution, adding a dispersing agent, an antifreezing agent and a wetting agent, grinding, mixing with a thickening agent and water, and uniformly shearing at a high speed.
Preferably, the components of the aqueous suspension agent in percentage by weight are as follows: 1-50% of pendimethalin, 1-60% of fluometuron, 7-12% of dimethyl sulfoxide, 2-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water which are complemented to 100%.
More preferably, the aqueous suspension comprises the following components in percentage by weight: 10-30% of pendimethalin, 20-40% of fluometuron, 8-10% of dimethyl sulfoxide, 2-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water which are complemented to 100%.
Preferably, the water dispersible granule comprises the following components in percentage by weight: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 2-10% of dimethyl sulfoxide, 2-9% of dispersant, 3-16% of wetting agent, 1-6% of disintegrating agent and the balance of filler to 100%;
the preparation method comprises the following steps: diluting fluometuron with dimethyl sulfoxide, adding pendimethalin to obtain a mixed solution, adding a dispersing agent, a wetting agent, a disintegrating agent and a filler, and granulating after jet milling.
Preferably, the water dispersible granule comprises the following components in percentage by weight: 20-90% of pendimethalin, 1-50% of fluometuron, 2-8% of dimethyl sulfoxide, 2-9% of dispersant, 3-16% of wetting agent, 1-6% of disintegrating agent and the balance of filler to 100%.
More preferably, the water dispersible granule comprises the following components in percentage by weight: 30-70% of pendimethalin, 1-20% of fluometuron, 4-6% of dimethyl sulfoxide, 2-9% of dispersant, 3-16% of wetting agent, 1-6% of disintegrating agent and the balance of filler to 100%.
Preferably, the dispersible oil suspension type comprises the following components in percentage by weight: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 1-12% of stabilizer, 2-9% of dispersant, 1-3% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and vegetable oil for supplementing to 100%;
the preparation method comprises the following steps: mixing pendimethalin, fluometuron, a stabilizer, a dispersant, an emulsifier, a thickener, a defoamer, an antifreeze and vegetable oil, shearing at a high speed, dispersing, and sanding.
Preferably, the dispersible oil suspension type has the following components in weight percent: 1-50% of pendimethalin, 10-90% of fluometuron, 1-12% of stabilizer, 2-9% of dispersant, 1-3% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and the balance of vegetable oil to 100%.
More preferably, the dispersible oil suspension type composition is as follows in weight percent: 1-20% of pendimethalin, 30-70% of fluometuron, 1-12% of stabilizer, 2-9% of dispersant, 1-3% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and the balance of vegetable oil to 100%.
Preferably, the wetting agent is one or more of Terspense 4896, sodium dodecyl sulfate, Morwet EFW, sodium dodecyl benzene sulfonate, butyl naphthalene sulfonic acid and fatty alcohol-polyoxyethylene ether;
preferably, the dispersing agent is one or more of Morwet D-425, sodium lignosulfonate, Terspense 2500, fatty alcohol-polyoxyethylene ether, dispersing agent NNO, naphthalenesulfonate and polycarboxylate dispersing agent;
preferably, the disintegrating agent is one or more of inorganic salt, sodium carboxymethylcellulose and bentonite;
preferably, the inorganic salt in the disintegrant is sodium sulfate, and other inorganic salt species are also within the scope of the present invention.
Preferably, the filler is one or more of kaolin, diatomite, bentonite and pottery clay;
preferably, the antifreezing agent is one or more of ethylene glycol, glycerol, propylene glycol and glycerol;
preferably, the thickening agent is one or more of xanthan gum, magnesium aluminum silicate, polyethylene glycol, carboxymethyl cellulose and carboxyethyl cellulose;
preferably, the stabilizer is one or more of epichlorohydrin, epoxidized soybean oil and sodium benzoate;
preferably, the emulsifier is one or two of YUS-110 emulsifier and methyl oleate;
in the present invention, in addition to the YUS-110 emulsifier, the methyl oleate emulsifier, other emulsifiers suitable for use with vegetable oils are also within the scope of the present invention.
Preferably, the defoaming agent is one or two of silicone oil and silicone compound.
The invention provides a weeding composition and a herbicide for cotton fields and corn fields. The weeding composition comprises, by weight, 0.1-90 parts of pendimethalin and 0.1-90 parts of fluometuron. Compared with the prior art, the invention has the following beneficial effects:
1) the effective components of the cotton and corn herbicide composition comprise pendimethalin and fluometuron, wherein the pendimethalin is a nuclear poison, the fluometuron mainly inhibits the Hill reaction in plant photosynthesis, different components are compounded, the control effect on weeds in cotton fields and corn fields through various different action modes has obvious synergistic action, the control effect is obviously superior to the control effects of pendimethalin single-dose, fluometuron single-dose, pendimethalin and diuron and the like, the control effect on the weeds in the cotton fields and the corn fields can be effectively improved while the dosage of different agents such as the pendimethalin and the like is effectively reduced, the resistance of the pendimethalin and the fluometuron on the weeds is simultaneously delayed, the production cost can be reduced, and the composition is a novel, efficient, low-toxicity and low-residue cotton and corn herbicide composition.
2) Aqueous suspensions have several advantages, such as: firstly, water is used as a matrix, can be quickly dispersed into water, is environment-friendly and safe to use, and has low cost; ② has no flash point, safe storage and transportation and high bioavailability.
3) Water dispersible granules have various advantages, such as: firstly, the paint does not contain organic solvent, and is safe to operators and environment; secondly, the product has no dust in the processes of packaging, storing and using, and the harm of the dust to human bodies is reduced; the preparation has good fluidity, no adhesion, no caking and no wall adhesion, and can be recycled after being packaged; high content of effective components.
4) Oil suspensions have a number of advantages, such as: the diluting carrier is environment-friendly oil, and has good adhesiveness, good spreadability and strong rain wash resistance.
5) The preparation method of the herbicide composition for cotton and corn is simple and convenient, and is suitable for industrial production.
Detailed Description
The invention discloses a weeding composition for cotton fields and corn fields and a herbicide, and the technical personnel in the field can use the contents to reference the contents and appropriately improve the technological parameters to realize the weeding. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The raw material medicines or the auxiliary agents used in the weeding composition and the herbicide for cotton fields and corn fields can be purchased from the market.
The invention is further illustrated by the following examples:
example 1: 50.3% aqueous suspension
The formula (weight ratio) is as follows: 20% of pendimethalin, 30.3% of fluometuron, 10% of dimethyl sulfoxide, 10% of a dispersing agent NNO, 4% of fatty alcohol-polyoxyethylene ether, 2% of ethylene glycol, 1% of xanthan gum and the balance of water to 100%.
The preparation method comprises the following steps: the method comprises the steps of firstly diluting the fluometuron by using dimethyl sulfoxide, then adding pendimethalin to prepare a mixed solution, then adding an auxiliary dispersing agent NNO, glycol and fatty alcohol-polyoxyethylene ether, grinding, mixing with xanthan gum and water, and uniformly shearing at a high speed to obtain the water suspension preparation.
Example 2: 60% water dispersible granule
The formula (weight ratio) is as follows: 50% of pendimethalin, 10% of fluometuron, 5% of dimethyl sulfoxide, 8% of sodium dodecyl sulfate, 5% of SP-2836 polycarboxylate dispersant, 2% of sodium sulfate, 10% of kaolin and the balance of diatomite to 100%.
The preparation method comprises the following steps: firstly, diluting the fluometuron by using dimethyl sulfoxide, then adding pendimethalin to prepare a mixed solution, then adding an auxiliary agent, crushing by using an airflow crusher, and then granulating to obtain the water dispersible granule.
Example 3: 60% dispersible oil suspension
The formula (weight ratio) is as follows: 5% of pendimethalin, 55% of fluometuron, 10% of sodium lignosulfonate, 12% of YUS-110 emulsifier, 3% of ethylene glycol, 1% of xanthan gum, 2% of epoxidized soybean oil, 1% of silicone oil and the balance of vegetable oil (soybean oil) to 100%.
The preparation method comprises the following steps: weighing pendimethalin and fluometuron into a container, adding an auxiliary agent, mixing, shearing and dispersing at a high speed, then sanding by a sand mill, and filtering to obtain the dispersible oil suspending agent.
Test example: field test
1. Reagent for testing
The test agents were the cotton and corn herbicide compositions of examples 1-3 of the present invention (test groups 1-3), 50% fluometuron SC (control group 1, 50% aqueous suspension, preparation method and adjuvant as in example 1), 330g/L pendimethalin emulsifiable concentrate (Pasf-Dougen Co., Ltd., control group 2), and 42% pendimethalin diuron (2: 1) SC (Kyowa agrichemical Co., Ltd., Zhangye, control group 3).
2. Design of experiments
This trialThe test arrangement is carried out in 2 different regions, the pesticide application device is a knapsack manual sprayer for Singapore and the spraying amount per mu is 600 L.hm-2And (5) liquid medicine. The specific outline of the test is as follows:
henan Anyang: the test arrangement is in the test farm of cotton research institute of Chinese academy of agricultural sciences, the cotton variety is Zhongmiao 79, the sowing is carried out in 24 days 4 months in 2020, and the sowing quantity is 666.7m per each22.0 kg; row spacing of 0.80m, plant spacing of 0.25m, and planting density of 5.5 ten thousand plants per hm-2The cotton growth and field management are uniform. The medicine is applied 1 time in 25 days of 4 months in 2020.
Henan Anyang: the test is arranged on a test farm of cotton institute of Chinese academy of agricultural sciences, the corn variety is Shanghai 605, the sowing is carried out in 6 months and 17 days in 2020, and the sowing amount is 666.7m per each22.0 kg; row spacing of 0.40m, plant spacing of 0.30m, and planting density of 6.6 ten thousand plants per hm-2The corn growth and field management are uniform. The medicine is applied 1 time in 17 days 6 months in 2020.
Xinjiang Utun: the test is arranged in southern Xinjiang test base of cotton institute in Qutun, Xinluzao No. 71, sowing in 2020, 4 months and 12 days, covering with mulching film, and planting density is 22.5 ten thousand.hm-2The row spacing (0.25+0.50+0.25) m, the plant spacing (0.095 m) and the cotton growth and field management are uniform and consistent. The medicine is applied 1 time at 12 days 4 months in 2020.
Xinjiang Utun: the test is arranged in the test base of southern Xinjiang Utun, the corn variety is northern agricultural silage 208, the sowing is carried out in 2020, 4 months and 25 days, and the sowing quantity is 666.7m per corn22.5 kg; row spacing of 0.40m, plant spacing of 0.30m, and planting density of 6.6 ten thousand plants per hm-2The corn growth and field management are uniform. The medicine is applied 1 time in 25 days of 4 months in 2020.
3. Survey content
The investigation time is 2 times of investigation 30 days after the medicine and 45 days after the medicine; the weed investigation adopts a random sampling method, 4 samples are randomly selected in each plot, each sample is 0.5m multiplied by 0.5m, and the 1m is counted2. The species and the quantity of the weeds are respectively investigated 30 days after the application and 45 days after the application, and the fresh weight of the overground part of the weeds is weighed while the control effect of the weeds is investigated 45 days after the application.
4. Formula for calculation
The plant control effect 30 days after the drug administration and 45 days after the drug administration is calculated according to the formula (1), and the fresh weight control effect 45 days after the drug administration is calculated according to the formula (2):
5. test results
As can be seen from Table 1, the following 6 treatments were sprayed to achieve a certain control effect on the weeds in cotton fields in Anyang, Henan. Wherein the effective component dosage of the invention in the embodiment 1 is the sum of the effective component dosages of the comparison 1 and the comparison 2, the theoretical plant control effect of the embodiment 1 after the application for 30 days is 73.9 percent, and the theoretical plant control effect and the fresh weight control effect of the embodiment 1 after the application for 45 days are 63.4 percent and 56.3 percent respectively; in example 1, the plant control effect 30 days after the application is 100.0%, and the plant control effect and the fresh weight control effect 45 days after the application are 100.0% and 100.0% respectively. In example 1, the plant control effect 30 days after the drug, the plant control effect 45 days after the drug and the fresh weight control effect are all greater than the corresponding theoretical drug effects.
As can be seen from Table 2, the following 6 treatments were sprayed to achieve a certain control effect on the corn weeds in Henan Antang. Wherein the effective component dosage of the invention in the embodiment 1 is the sum of the effective component dosages of the comparison 1 and the comparison 2, the theoretical plant control effect of the embodiment 1 after the application for 30 days is 80.1 percent, and the theoretical plant control effect and the fresh weight control effect of the embodiment 1 after the application for 45 days are 65.5 percent and 69.7 percent respectively; in example 1, the plant control effect 30 days after the drug administration is 98.4%, and the plant control effect 45 days after the drug administration and the fresh weight control effect are 94.3% and 96.1%, respectively. In example 1, the plant control effect 30 days after the drug, the plant control effect 45 days after the drug and the fresh weight control effect are all greater than the corresponding theoretical drug effects.
As can be seen from Table 3, the following 6 treatments were applied to control weeds in the cotton field at Qutun, Xinjiang. Wherein the effective component dosage of the invention in the embodiment 1 is the sum of the effective component dosages of the comparison 1 and the comparison 2, the theoretical plant control effect of the embodiment 1 after the application for 30 days is 80.7 percent, and the theoretical plant control effect and the fresh weight control effect of the embodiment 1 after the application for 45 days are 63.8 percent and 64.5 percent respectively; in example 1, the plant control effect 30 days after the application is 96.9%, and the plant control effect and the fresh weight control effect 45 days after the application are 95.0% and 98.2%, respectively. In example 1, the plant control effect 30 days after the drug, the plant control effect 45 days after the drug and the fresh weight control effect are all greater than the corresponding theoretical drug effects.
As can be seen from Table 4, the following 6 treatments were applied to control corn weeds at Qutun, Xinjiang. Wherein the effective component dosage of the invention in the embodiment 1 is the sum of the effective component dosages of the comparison 1 and the comparison 2, the theoretical plant control effect of the embodiment 1 after the application for 30 days is 84.7 percent, and the theoretical plant control effect and the fresh weight control effect of the embodiment 1 after the application for 45 days are 68.9 percent and 69.8 percent respectively; in example 1, the plant control effect 30 days after the drug administration is 97.3%, and the plant control effect and the fresh weight control effect 45 days after the drug administration are 93.8% and 96.4%, respectively. In example 1, the plant control effect 30 days after the drug, the plant control effect 45 days after the drug and the fresh weight control effect are all greater than the corresponding theoretical drug effects.
In a word, the combination of the fluometuron and the pendimethalin medicament has obvious synergistic effect.
TABLE 1 control effect of the herbicides on Hainan cotton field weeds in Henan province
TABLE 2 control of weeds in Henan Antang corn field by herbicides
TABLE 3 control of weeds in Kunston cotton field in Xinjiang by the herbicides
TABLE 4 control of weeds in the field of Xinjiang KunTun corn by the herbicides
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The weeding composition is characterized by comprising 0.1-90 parts by weight of pendimethalin and 0.1-90 parts by weight of fluometuron.
2. The herbicidal composition as claimed in claim 1, wherein the herbicidal composition comprises pendimethalin 1 to 50 parts by weight and fluroxypyr 1 to 60 parts by weight.
3. The herbicidal composition as claimed in claim 1, wherein the herbicidal composition comprises pendimethalin 5 to 50 parts by weight and fluroxypyr 10 to 55 parts by weight.
4. A herbicidal composition according to claim 1, characterized in that it consists of, in parts by weight, pendimethalin 20 parts and fluroxypyr 30.3 parts.
5. A herbicide, comprising the herbicidal composition of any one of claims 1 to 4 and an agriculturally pharmaceutically acceptable adjuvant.
6. The herbicide formulation of claim 5, wherein said herbicide is in a form selected from the group consisting of an aqueous suspension, an aqueous dispersible granule, and a dispersible oil suspension.
7. A herbicide formulation, as claimed in claim 6, characterized in that said aqueous suspension concentrate has the following composition, in weight percent: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 5-15% of dimethyl sulfoxide, 2-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water which is complemented to 100%;
the preparation method of the water suspending agent comprises the following steps: diluting fluometuron with dimethyl sulfoxide, adding pendimethalin to obtain a mixed solution, adding a dispersing agent, an antifreezing agent and a wetting agent, grinding, mixing with a thickening agent and water, and shearing and uniformly mixing.
8. A herbicide formulation, as claimed in claim 6, wherein the composition of the water dispersible granule is as follows, in weight percent: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 2-10% of dimethyl sulfoxide, 2-9% of dispersant, 3-16% of wetting agent, 1-6% of disintegrating agent and the balance of filler to 100%;
the preparation method comprises the following steps: diluting fluometuron with dimethyl sulfoxide, adding pendimethalin to obtain a mixed solution, adding a dispersing agent, a wetting agent, a disintegrating agent and a filler, and granulating after jet milling.
9. A herbicide formulation, as claimed in claim 6, characterized in that said dispersible oil-suspension formulation consists of, in percentages by weight: 0.1-90% of pendimethalin, 0.1-90% of fluometuron, 1-12% of stabilizer, 2-9% of dispersant, 1-3% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and vegetable oil for supplementing to 100%;
the preparation method comprises the following steps: mixing pendimethalin, fluometuron, a stabilizer, a dispersant, an emulsifier, a thickener, a defoamer, an antifreeze and vegetable oil, shearing and dispersing, and sanding.
10. A herbicide formulation as claimed in any one of claims 6 to 9, wherein said wetting agent is one or more of Terspense 4896, sodium lauryl sulphate, Morwet EFW, sodium dodecylbenzene sulphonate, butyl naphthalene sulphonic acid, fatty alcohol polyoxyethylene ether;
the dispersing agent is one or more of Morwet D-425, sodium lignosulfonate, Terspense 2500, fatty alcohol-polyoxyethylene ether, dispersing agent NNO, naphthalenesulfonate and polycarboxylate dispersing agent;
the disintegrating agent is one or more of inorganic salt, sodium carboxymethylcellulose and bentonite;
the filler is one or more of kaolin, diatomite, bentonite and argil;
the antifreezing agent is one or more of ethylene glycol, glycerol, propylene glycol and glycerol;
the thickening agent is one or more of xanthan gum, magnesium aluminum silicate, polyethylene glycol, carboxymethyl cellulose and carboxyethyl cellulose;
the stabilizer is one or more of epichlorohydrin, epoxidized soybean oil and sodium benzoate;
the emulsifier is one or two of YUS-110 emulsifier and methyl oleate;
the defoaming agent is one or two of silicone oil and silicone compounds.
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| CN202011607398.7A CN112704071A (en) | 2020-12-30 | 2020-12-30 | Weeding composition and herbicide for cotton field and corn field |
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| CN202011607398.7A CN112704071A (en) | 2020-12-30 | 2020-12-30 | Weeding composition and herbicide for cotton field and corn field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115812732A (en) * | 2022-12-07 | 2023-03-21 | 中国农业科学院棉花研究所 | Herbicidal composition containing trifluralin and diuron and herbicide |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115812732A (en) * | 2022-12-07 | 2023-03-21 | 中国农业科学院棉花研究所 | Herbicidal composition containing trifluralin and diuron and herbicide |
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