CN111134130A - Weeding composition and application thereof - Google Patents
Weeding composition and application thereof Download PDFInfo
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- CN111134130A CN111134130A CN202010064544.XA CN202010064544A CN111134130A CN 111134130 A CN111134130 A CN 111134130A CN 202010064544 A CN202010064544 A CN 202010064544A CN 111134130 A CN111134130 A CN 111134130A
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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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- 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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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Abstract
The invention belongs to the technical field of pesticide herbicides, and discloses a weeding composition and application thereof. The weeding composition comprises three effective components of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl in a mass ratio of (2-50) to (0.1-10): (0.1-10). Compared with the traditional single-agent or binary compound pesticide composition, the weeding composition provided by the invention combines and compounds three active ingredients with different action mechanisms, namely diuron, haloxyfop-R-methyl and fluroxypyr-meptyl, so that the components have obvious synergistic interaction effect, the weed control effect is greatly improved, the weed control spectrum is enlarged, the drug effect is quickly exerted, the lasting period is long, the generation of drug resistance of weeds is effectively reduced, the drug cost and the drug application frequency are reduced, and the weeding composition is safer and more efficient.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a weeding composition and application thereof.
Background
Diuron, the english name N- (3,4-Dichlorophenyl) -N ', N' -dimethylurea, the chemical name N- (3,4-Dichlorophenyl) -N ', N' -dimethylurea. It is a substituted urea herbicide with systemic and conductive action and certain contact killing action. After the medicament is absorbed by the root system or the leaves of the plant, photosynthesis is inhibited, so that the leaves are green, the leaf tips and the edges are faded, and the plants die due to lack of nutrition. The herbicide composition is mainly used for preventing and killing annual gramineous weeds and certain broadleaf weeds such as Echinochloa crusgalli, crab grass, green bristlegrass, amaranthus, cyperus rotundus and chenopodium album in crops such as cotton, soybeans, tomatoes, tobaccos, strawberries, grapes, orchards, rubber gardens and the like.
Haloxyfop-P-methyl, structure C16H13ClF3NO4The chemical name is: 2- [4- (3-chloro-5-trifluoromethyl-2-pyridinyloxy) phenoxy]Propionic acid or 2- [4- (5-trifluoromethyl-3-chloro-pyridin-2-yloxy) phenoxy]Methyl propionate. It belongs to aryloxy phenoxy propionic acid herbicide, after being applied, it can be quickly absorbed by the leaves of gramineous weeds and conducted to the whole plant to inhibit the growth of plant meristem, so as to kill weeds. Not only has long lasting period, has good preventing and removing effect on annual and perennial grassy weeds from the seedling stage to the tillering stage and the heading stage, but also can play a role under the conditions of low temperature and drought.
FLUROXYPYR meptyl ester, english name FLUROXYPYR, chemical name: ((4-amino-3, 5-dichloro-6-fluoro-2-pyridyl) oxy) acetic acid 1-methyl-heptyl ester. It is a systemic conductive post-emergence herbicide, which can be quickly absorbed by plants after being applied, so that sensitive plants can have the reaction of typical hormone herbicides and have malformed and distorted plants. Temperature, although not affecting the final herbicidal effect, affects the rate of onset of action of the herbicide. Generally, the pesticide effect is slowly exerted at low temperature, so that the plants can stop growing but not immediately die after being poisoned, and the plants die quickly after the temperature rises; the half-life period in soil is short, and the influence on next-crop broadleaf crops can not be generated.
The ginger is an important economic crop, contains rich nutrient substances, and is widely applied to the fields of food, seasoning, medicine and health care and the like. The unique environment of the ginger field is extremely beneficial to the growth of weeds, and once the weeds are not prevented and controlled in time, the water, nutrients, illumination and space required by the daily growth of the ginger are damaged, and the yield and the quality of the ginger are seriously influenced. At present, the weeds in the ginger field are mainly removed by a chemical method, but with the long-term use of a single herbicide in a large amount, more and more weeds generate drug resistance, so that the dosage is increased, the prevention effect is reduced, the duration is shortened, the environment sustainable development is not facilitated, and the application frequency and the labor cost are increased invisibly; meanwhile, when weeds occur, the weed phase is complex, various types of weeds such as gramineous weeds and broadleaf weeds are mixed, the use of a single compound herbicide can show certain defects and limitations, and the effect is not ideal. Therefore, how to reasonably screen and compound different pesticide varieties and formulas so as to effectively improve the control effect of the diseases, the pests and the weeds, reduce the dosage, reduce the cost and delay the generation of drug resistance of the diseases, the pests and the weeds is the key point of the research in the production field of the ginger fields.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a safe and effective weeding composition with reasonable components and low drug cost, which not only has better control effect on various grassy weeds and broadleaf weeds, but also has positive effects on the aspects of retarding the resistance of the weeds, reducing the dosage of the drugs and the like, and particularly has obvious effect on the aspect of controlling the weeds in the ginger field.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a weeding composition comprises the following effective components of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl in a mass ratio of (2-50) to (0.1-10): (0.1-10).
Preferably, the mass ratio of the effective components of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl is (15-35) to (1-5): (1-5).
The herbicidal composition of the present invention further contains adjuvants conventionally used in pesticide preparations for the preparation of various suitable formulations for agricultural use.
Specifically, the auxiliary agent comprises one or more of a solvent, a dispersing agent, a wetting agent, a disintegrating agent, an emulsifying agent, a thickening agent, a stabilizing agent and a carrier.
Specifically, the solvent is selected from one or more of butanol, propylene glycol, glycerol, polyethylene glycol, cyclohexanone, pyrrolidone, solvent oil, dimethylformamide, nitrogen methyl pyrrolidone, coconut fatty acid methyl ester, methyl oleate, methyl esterified vegetable oil, ethyl acetate, methyl phthalate and dibutyl phthalate.
Specifically, the dispersing agent is selected from one or more of sodium lignosulfonate, calcium lignosulfonate, sodium polyacrylate, methylene dinaphthalene sulfonate, alkyl amino taurate, methylene dinaphthalene sulfonate formaldehyde condensate, carboxymethyl cellulose, sodium tripolyphosphate and alkyl naphthalene sulfonate polycondensate.
Specifically, the wetting agent is selected from one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium alkyl naphthalene sulfonate, fatty alcohol polyglycol ether sulfate, fatty alcohol-polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, alkyl naphthalene formaldehyde condensate, wetting penetrant F, nekal BX, Chinese honeylocust fruit powder and soapberry powder.
Specifically, the disintegrating agent is selected from one or more of bentonite, urea and ammonium sulfate.
Specifically, the emulsifier is selected from one or more of agricultural milk 500#, agricultural milk 600#, agricultural milk 700#, castor oil polyoxyethylene ether, fatty acid polyoxyethylene ether, polyoxyethylene fatty alcohol ether, ethoxylated castor oil, polymethyl acrylate, fatty acid polyglycol ester, glyceryl trilaurate polyoxyethylene ether, phenethyl phenol polyoxypropylene ether, phenethyl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether and alkylphenol polyoxyethylene ether.
Specifically, the thickener is one or more selected from xanthan gum, polyvinyl alcohol, sodium alginate and magnesium aluminum silicate.
Specifically, the stabilizer is one or more selected from BH-2, 6-di-tert-butyl-4-methylphenol, butyl hydroxy anisole and epichlorohydrin.
Specifically, the carrier is selected from one or more of kaolin, diatomite, bentonite, attapulgite, white carbon black, starch and light calcium carbonate.
Preferably, the proper dosage form of the weeding composition is wettable powder, water dispersible granules, dispersible oil suspending agent and water suspending agent.
Preferably, the wettable powder comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 5 to 15 percent of dispersant, 5 to 10 percent of wetting agent and the balance of carrier to 100 percent.
Preferably, the water dispersible granule comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 5 to 15 percent of dispersant, 5 to 10 percent of wetting agent, 1 to 10 percent of disintegrant and the balance of carrier to 100 percent.
Preferably, the dispersible oil suspending agent comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 1 to 30 percent of thickening agent, 1 to 30 percent of emulsifying agent, 0.1 to 30 percent of dispersing agent, 0.1 to 30 percent of stabilizing agent and organic solvent which are complemented to 100 percent.
Preferably, the aqueous suspension comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 5 to 10 percent of wetting agent, 1 to 10 percent of dispersing agent, 1 to 5 percent of thickening agent and deionized water to make up to 100 percent.
Furthermore, the weeding composition is applied to the prevention and control of weeds in ginger fields.
Compared with the prior art, the invention has the advantages that:
1. the weeding composition provided by the invention combines and uses three active ingredients of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl with different action mechanisms, fully utilizes and combines the advantages of each effective cost, and the active ingredients have mutual synergistic action, so that the weeding effect is greatly improved, the weed control spectrum is expanded, the duration is prolonged, the generation of weed drug resistance is reduced, the purpose of preventing and killing various weeds by one-time application is achieved, and the weeding composition is not only suitable for preventing and killing annual weeds of various crops such as non-cultivated land, cotton, corn, soybean, tomato, tobacco, strawberry, grape, orchard and rubber garden, but also is particularly suitable for preventing and killing annual weeds of complex weed communities in ginger fields.
2. Compared with the traditional single-dose or binary compound weeding composition preparation, the weeding composition provided by the invention shows an obvious synergistic effect, and not only is the dosage and the frequency of the active ingredients greatly reduced while the weeding effect is ensured, but also the application cost is more favorably reduced, the adverse effect of pesticide on the ecological environment is also reduced, and the safety is higher.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 137% Difuron, haloxyfop-R-methyl, Fluroxypyr wettable powder
Taking 35 g of diuron, 1 g of haloxyfop-methyl, 1 g of fluroxypyr-meptyl, 10 g of sodium lignin sulfonate, 8 g of alkyl naphthalene sulfonate and kaolin to complement to 100 g; the components are uniformly mixed, mechanically crushed and then crushed by air flow to obtain the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl wettable powder with the mass percentage of 37 percent.
Example 231% wettable powder of diuron, haloxyfop-R-fluroxypyr
Taking 20 g of diuron, 1 g of haloxyfop-methyl, 10 g of fluroxypyr-meptyl, 10 g of sodium polyacrylate, 10 g of sodium dodecyl sulfate and kaolin to complement to 100 g; the components are uniformly mixed, mechanically crushed and then crushed by air flow to obtain the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl wettable powder with the mass percentage of 31 percent.
Example 310% Difuron, haloxyfop-R, fluroxypyr meptyl wettable powder
Taking 8 g of diuron, 1 g of haloxyfop-methyl, 1 g of fluroxypyr-meptyl, 5 g of sodium polyacrylate, 5 g of sodium dodecyl sulfate and diatomite to complement to 100 g; the components are uniformly mixed, mechanically crushed and then crushed by air flow to obtain the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl wettable powder with the mass percentage of 10 percent.
Example 426% diuron haloxyfop-R-fluroxypyr meptyl water dispersible granules
15 g of diuron, 1 g of haloxyfop-methyl, 10 g of fluroxypyr-meptyl, 6 g of methylene dinaphthalene sulfonate, 8 g of fatty alcohol-polyvinyl ether, 8 g of urea and diatomite are taken to be complemented to 100 g; the components are mixed and crushed, then a small amount of water is added for extrusion granulation, and the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl water dispersible granules with the mass percentage of 26 percent are obtained after drying.
Example 527% diuron haloxyfop-R-fluroxypyr meptyl water dispersible granule
Taking 9 g of diuron, 9 g of haloxyfop-R-methyl, 9 g of fluroxypyr-meptyl, 8 g of carboxymethyl cellulose, 8 g of fatty alcohol-polyvinyl ether, 8 g of ammonium sulfate and bentonite, and supplementing to 100 g; the components are mixed and crushed, then a small amount of water is added for extrusion granulation, and the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl water dispersible granules with the mass percentage of 27 percent are obtained after drying.
Example 645% diuron haloxyfop-R-fluroxypyr meptyl water dispersible granules
Taking 30 g of diuron, 5 g of haloxyfop-R-methyl, 10 g of fluroxypyr-meptyl, 10 g of sodium tripolyphosphate, 8 g of alkyl naphthalene formaldehyde condensate, 8 g of ammonium sulfate and bentonite to complement to 100 g; the components are mixed and crushed, then a small amount of water is added for extrusion granulation, and the mixture is dried to obtain the diuron, haloxyfop-R-methyl and fluroxypyr-meptyl water dispersible granule with the mass percentage of 45%.
Example 753% diuron, haloxyfop-R-haloxyfop-ethyl fluroxypyr dispersible oil suspension
Taking 40 g of diuron, 8 g of haloxyfop-methyl, 5 g of fluroxypyr-meptyl, 3 g of xanthan gum, 10 g of fatty acid polyoxyethylene ether, 8 g of calcium lignosulphonate, 5 g of BH-2, 6-di-tert-butyl-4-4 methyl phenol and methyl oleate for complement to 100%; 53 percent of diuron, high-efficiency haloxyfop and fluroxypyr-meptyl dispersible oil suspending agent is prepared according to a conventional preparation method.
Example 870% diuron, haloxyfop-R-fluroxypyr meptyl dispersible oil suspension
Taking 50 g of diuron, 10 g of haloxyfop-methyl, 10 g of fluroxypyr-meptyl, 1 g of xanthan gum, 5 g of fatty acid polyoxyethylene ether, 6 g of calcium lignosulphonate, 3 g of BH-2, 6-di-tert-butyl-4-4 methyl phenol and methyl oleate for complement to 100%; the diuron high-efficiency haloxyfop-R-fluroxypyr dispersible oil suspending agent with the mass percentage of 70 percent is prepared according to the conventional preparation method.
Example 93% diuron, haloxyfop-R-methyl, fluroxypyr meptyl aqueous suspension
2 g of diuron, 0.5 g of high-efficiency haloxyfop-methyl, 0.5 g of fluroxypyr-meptyl, 5 g of alkyl naphthalene formaldehyde condensate, 7 g of alkyl amino taurate, 4 g of xanthan gum and deionized water are taken to complement to 100 g; the components are uniformly mixed, then the mixture is added into a sand mill for grinding, and the ground mixture is sieved by a 200-mesh sieve, so that the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl water suspending agent with the mass percentage of 3% is obtained.
Example 1062% Disulfuron-haloxyfop-R-fluroxypyr-meptyl aqueous suspension
Taking 45 g of diuron, 10 g of haloxyfop-methyl, 7 g of fluroxypyr-meptyl, 10 g of saponin powder, 7 g of sodium tripolyphosphate, 2 g of sodium alginate and deionized water to complement to 100 g; the components are uniformly mixed, then the mixture is added into a sand mill for grinding, and the ground mixture is sieved by a 200-mesh sieve, so that the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl water suspending agent with the mass percentage of 62% is obtained.
Example 112.2% diuron haloxyfop-R-fluroxypyr meptyl aqueous suspension
2 g of diuron, 0.1 g of haloxyfop-methyl, 0.1 g of fluroxypyr-meptyl, 10 g of nekal, 3 g of calcium lignosulphonate, 2 g of sodium alginate and deionized water are taken to complement to 100 g; the components are uniformly mixed, then the mixture is added into a sand mill for grinding, and the ground mixture is sieved by a 200-mesh sieve, so that the diuron, efficient haloxyfop-methyl and fluroxypyr-meptyl water suspending agent with the mass percentage of 2.2 percent is obtained. EXAMPLE 12 pharmacodynamic test of pharmaceutical formulation of herbicidal composition
The herbicidal composition agents obtained in examples 1 to 11 were subjected to a pharmacodynamic test using 63% diuron suspension as control 1, 108 g/haloxyfop-methyl-enhanced emulsifiable concentrate as control 2, and 50% fluroxypyr-meptyl-dispersible suspension as control 3.
(1) The combined effect of the drugs to be tested on the weeds in each group is as follows:
the synergistic effect of the weeding composition provided by the invention is evaluated by adopting a co-toxicity coefficient method: solving a regression equation by using the natural logarithm of the concentration (X) of the composition medicament and the growth inhibition percentage or fresh weight inhibition percentage (Y) of the composition medicament to the target weeds, and calculating the EC of the composition medicament to the weeds50Value or EC90And (4) obtaining the co-toxicity coefficient. The combined action effect of the compounded weeding composition medicament on weeds is evaluated by the co-toxicity coefficient>120 is expressed as synergistic effect, the co-toxicity coefficient is expressed as additive effect between 80 and 120, and the co-toxicity coefficient<80 is shown as antagonistic.
The co-toxicity coefficient calculation formula adopted in the embodiment is as follows:
co-toxicity coefficient (CTC) 100/(EC)Mixing of×PDiuron (D)/ECDiuron (D)+ECMixing of×PHigh-efficiency haloxyfop-methyl/ECHigh-efficiency haloxyfop-methyl+ECMixing of×PFluroxypyr meptyl ester/ECFluroxypyr meptyl ester)
In the formula: EC mixed as herbicide composition medicament50Values (for purslane, crab grass, green bristlegrass, the same below); pDiuron (D)Is the weight proportion of diuron in the effective components of the herbicide composition; pHigh-efficiency haloxyfop-methylThe haloxyfop-R-methyl accounts for the weight proportion of the effective components of the herbicide composition; pFluroxypyr meptyl esterThe fluroxypyr meptyl ester accounts for the weight proportion of the effective components of the weeding composition medicament; EC (EC)Diuron (D)EC of diuron50A value; EC (EC)High-efficiency haloxyfop-methylEC for haloxyfop-R-methyl50Value, ECFluroxypyr meptyl esterEC for fluroxypyr meptyl ester50The value is obtained. EC of each group50The values and co-toxicity coefficients are shown in Table 1.
Table 1 shows the EC of each group of drugs to be tested50Value and co-toxicity coefficient.
As shown in the test results in Table 1, in the herbicidal composition containing diuron, haloxyfop-R-methyl and fluroxypyr-meptyl, the mass ratio of the active ingredients of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl is (2-50): 0.1-10): (0.1-10), the cotoxicity coefficients of the composition are far more than 120, which shows that the diuron, the haloxyfop-R-methyl and the fluroxypyr-meptyl are compounded to generate obvious synergistic effect.
(2) The control effect of each group of medicaments to be tested on the stem and leaf treatment of various weeds
The test is carried out in a certain ginger field opened in Henan, each group is treated for 4 times, and the treatment area is 20m2(ii) a The diuron-fluroxypyr with the mass ratio of 3:1 is addedIsooctyl ester compound drug as control group 4; in addition, a high-efficiency haloxyfop-methyl and fluroxypyr-meptyl compound preparation with the mass ratio of 1:4 is set as a control group 5, the application modes of the to-be-detected medicines provided in examples 1 to 11 and the control groups 1 to 5 are ginger 3-5 leaf periods and weed 2-5 leaf periods, directional stem leaf spraying is carried out, the statistical control results are carried out 15 days and 30 days after application, and the test treatment, the application amount and the control effect are shown in table 2.
The prevention effect calculation formula is as follows:
plant control effect (%) - (number of control zone weed plants-number of treated zone weed plants)/number of control zone weed plants × 100
Table 2 shows the application rates and control effects of the drugs to be tested in each group of the ginger field weed stem and leaf treatment.
The test results in table 2 show that the herbicidal composition prepared by compounding the fluroxypyr-meptyl, the haloxyfop-R and the diuron has better control effect on weeds such as crab grass, green bristlegrass and purslane in ginger fields compared with a single-dose or binary compound herbicide, has obvious difference (P <0.05) and obvious synergistic effect, and simultaneously, the influence on ginger seedlings is observed in the test dose range, so that the crops grow normally, the plants are not phytotoxicity and abnormal phenomena are found, and the ginger is safe.
In conclusion, the weeding composition provided by the invention is compounded by diuron, haloxyfop-R-methyl and fluroxypyr-meptyl, so that the synergistic effect is achieved, the weed control spectrum is expanded, the weeds with strong drug resistance can be effectively controlled, the drug effect duration is long, no adverse effect is caused on the environmental safety, and the weeding composition can be used for controlling the weeds in the fields, especially the weeds in the ginger fields.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A weeding composition is characterized by comprising the following effective components of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl in a mass ratio of (2-50) to (0.1-10): (0.1-10).
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the active ingredients of diuron, haloxyfop-R-methyl and fluroxypyr-meptyl is (15-35) to (1-5): (1-5).
3. A herbicidal composition as claimed in claim 1 or 2, characterized in that: the herbicidal composition also contains adjuvants conventionally used in pesticide formulations to prepare various suitable dosage forms suitable for agricultural use.
4. A herbicidal composition according to claim 3, characterized in that: the auxiliary agent comprises one or more of a solvent, a dispersing agent, a wetting agent, a disintegrating agent, an emulsifying agent, a thickening agent, a stabilizing agent and a carrier.
5. A herbicidal composition according to claim 3, characterized in that: the dosage form of the weeding composition is wettable powder, water dispersible granules, dispersible oil suspending agent and water suspending agent.
6. A herbicidal composition according to claim 5, characterized in that: the wettable powder comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 5 to 15 percent of dispersant, 5 to 10 percent of wetting agent and the balance of carrier to 100 percent.
7. A herbicidal composition according to claim 5, characterized in that: the water dispersible granule comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 5 to 15 percent of dispersant, 5 to 10 percent of wetting agent, 1 to 10 percent of disintegrant and the balance of carrier to 100 percent.
8. A herbicidal composition according to claim 5, characterized in that: the dispersible oil suspending agent comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 1 to 30 percent of thickening agent, 1 to 30 percent of emulsifying agent, 0.1 to 30 percent of dispersing agent, 0.1 to 30 percent of stabilizing agent and organic solvent which are complemented to 100 percent.
9. A herbicidal composition according to claim 5, characterized in that: the suspending agent comprises the following components in percentage by mass: 2 to 50 percent of diuron, 0.1 to 10 percent of haloxyfop-methyl, 0.1 to 10 percent of fluroxypyr-meptyl, 1 to 10 percent of wetting agent, 0.1 to 10 percent of dispersing agent, 0.1 to 2 percent of thickening agent and deionized water to complement to 100 percent.
10. Use of a herbicidal composition as claimed in any one of claims 1 to 9 for controlling weeds in ginger fields.
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| CN102318632A (en) * | 2011-07-18 | 2012-01-18 | 广西田园生化股份有限公司 | Synergistic weeding composition containing fluroxypyr |
| CN105873437A (en) * | 2013-09-26 | 2016-08-17 | 巴斯夫农业化学品有限公司 | Method for controlling weeds in sugar cane plantations |
| CN109463241A (en) * | 2018-11-20 | 2019-03-15 | 大理现代农业科技有限公司 | A kind of control method of garlic field malignant weed water peanut |
| CN109805020A (en) * | 2019-03-05 | 2019-05-28 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and its preparation |
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Application publication date: 20200512 |