CN110786338A - Herbicidal composition and use thereof - Google Patents
Herbicidal composition and use thereof Download PDFInfo
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- CN110786338A CN110786338A CN201910075735.3A CN201910075735A CN110786338A CN 110786338 A CN110786338 A CN 110786338A CN 201910075735 A CN201910075735 A CN 201910075735A CN 110786338 A CN110786338 A CN 110786338A
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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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
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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 discloses a weeding composition and application thereof. The weeding composition comprises an active ingredient A and an active ingredient B. Wherein the active component A is glufosinate-ammonium and the active component B is haloxyfop-R-methyl. The weight ratio of the active component A to the active component B is (1-80): 80-1. The herbicidal composition can be used for controlling grassy weeds, broadleaf weeds and sedge weeds. Through the compounding of various active ingredients, the pesticide effect is fast, the weed control spectrum is expanded, and the environmental compatibility is improved.
Description
Technical Field
The invention relates to a weeding composition, in particular to a weeding composition containing glufosinate-ammonium and application thereof in agriculture.
Background
Glufosinate (Glufosinate) is a highly efficient, broad-spectrum, low-toxicity, non-selective (biocidal) organophosphorus herbicide with partial systemic action. Can be used for preventing and killing annual and perennial dicotyledonous and gramineous weeds. Glufosinate has two enantiomers, L-and D-form, L-form glufosinate, i.e., glufosinate-ammonium, which has twice the herbicidal activity of racemic glufosinate-ammonium.
The chemical name of the refined glufosinate-ammonium is 4- [ hydroxy (methyl) phosphonyl]L-homoalanine, readily soluble in water, poorly soluble in organic solvents, stable to light, melting point 214-216 ℃ and the formula: c5H12NO4P; molecular weight: 181.1, respectively; the structural formula is as follows:
the glufosinate-ammonium belongs to a non-conductive contact herbicide, and is used for preventing and controlling weeds by inhibiting glutamine synthetase, so that the metabolic disturbance of nitrogen in a plant body and the cumulative poisoning of nitrogen are caused, the synthesis and photosynthesis of chloroplast are hindered, and finally the plant is dead. The refined glufosinate-ammonium has the advantages of low toxicity, high safety, wide weeding spectrum, high activity, high weeding speed and the like. In addition, the refined glufosinate-ammonium has good water solubility and is convenient to process and mix for use.
Haloxyfop-P-methyl is a heterocyclic oxy phenoxy propionic acid herbicide with the chemical structural formula as follows:
haloxyfop-R-methyl is a selective systemic herbicide, can inhibit plant acetyl coenzyme A carboxylase (ACCase), and can be selectively used for preventing and killing various gramineous weeds in various crops.
However, long-term use of glufosinate-ammonium or haloxyfop-R-methyl single agent can easily cause drug resistance, so that the dosage is increased, the environmental influence is increased, the prevention and treatment effect is reduced, and the medication cost is increased.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a herbicidal composition, which comprises glufosinate-ammonium as one of the active ingredients, and is compounded with haloxyfop-R-methyl to achieve the purposes of reducing the dosage of agricultural active ingredients, improving the control effect, prolonging the lasting period, having little influence on the environment, delaying the drug resistance, and expanding the control range.
According to one aspect, the invention provides a weeding composition, which comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium, the active ingredient B comprises haloxyfop-R-methyl, and the weight ratio of the active ingredient A to the active ingredient B is 1: 80-80: 1.
The weight percentage of the active ingredient A and the active ingredient B is 0.5-30% based on the total weight of the weeding composition.
According to a specific embodiment, the effective amount of the herbicidal composition is 0.5 to 100g (a.i.)/ha.
According to another embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl and 3-20% of composite surfactant.
According to a specific embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 1-15% of alkyl glycoside surfactant, 2-5% of fatty alcohol polyglycol ether sulfate and the balance of water.
According to another embodiment, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 0.5-3% of alkyl glycoside, 17-19.5% of alcohol ether carboxylate surfactant and the balance of water.
Preferably, the active ingredient B also comprises one or more of quizalofop-p-ethyl, clethodim, glyphosate, 2-methyl-4-chloro, dicamba, penoxsulam, metamifop, bispyribac, saflufenacil, fluroxypyr and triclopyr.
The weeding composition also comprises one or more auxiliary agents of filler, penetrant, binder, stabilizer, safener and synergist.
Optionally, the formulation of the herbicidal composition is selected from the group consisting of wettable powders, dusts, granules, suspensions, microemulsions, aqueous emulsions, oil suspensions, aqueous suspensions, colloidal agents and emulsifiable concentrates.
According to another aspect of the present invention, the present invention also provides use of the herbicidal composition for controlling weeds.
The weeding composition contains glufosinate-ammonium, and has the following advantages by being matched with haloxyfop-R-methyl and optionally the composite surfactant:
the high efficiency and excellent water solubility of the refined glufosinate-ammonium are fully utilized, so that the use dosage of the pesticide preparation is reduced, and the use amount of an organic solvent is reduced;
the selectivity of the high-efficiency haloxyfop-methyl is utilized to enhance the selectivity of gramineous weeds, broadleaf weeds and cyperaceae weeds;
the physical bonding effect among the glufosinate-ammonium, the haloxyfop-R-methyl and the composite surfactant is utilized, so that the contact time of a pesticide preparation on the surface of a plant is prolonged, and the contact area is increased, so that the herbicidal activity of the glufosinate-ammonium and the haloxyfop-R-methyl is more fully exerted, the herbicidal activity of the compound herbicidal composition is further improved, the use amount of pesticides is reduced, the influence on crops is reduced, and the pollution to the environment is reduced.
Therefore, compared with the glufosinate-ammonium and the haloxyfop-R-methyl which are used independently, the weeding composition has more remarkable synergistic effect. In particular, the herbicidal composition according to the present invention is particularly suitable for controlling annual or perennial grassy weeds and broadleaf weeds, such as goosegrass, eclipta, green bristlegrass, large crabgrass, cyperus rotundus, and the like.
Detailed Description
The weeding composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium, and the active ingredient B comprises haloxyfop-p-methyl and one or more of quizalofop-p-ethyl, clethodim, glyphosate, 2-methyl-4-chloro, dicamba, penoxsulam, metamifop, bispyribac-sodium, saflufenacil, fluroxypyr and triclopyr.
Wherein the weight ratio of the active component A to the active component B can be 1: 80-80: 1, preferably 1: 60-60: 1, more preferably 1: 50-50: 1, most preferably 1: 30-30: 1, 1: 4-4: 1, for example, 1:25, 1:20, 1:15, 1:10, 1:5, 1:1, 5:1, 10:1, 15:1, 20:1, 25: 1.
When the active ingredient B comprises other active ingredients except haloxyfop-R-methyl, two of the above listed optional active ingredients are preferably included, and the relative proportion of the two active ingredients can be 4: 1-1: 4, preferably 3.5: 1-1: 3.5, more preferably 1:1
The weeding composition also comprises a composite surfactant. The herbicidal composition comprising, based on the total weight of the herbicidal composition: 5-20% (preferably 5-15%, more preferably 5-10%, for example 7.5%) of glufosinate-ammonium, 2-6% (preferably 2-5%, more preferably 2-4%, for example 2.5%, 3%) of haloxyfop-R-methyl, and 3-20% (preferably 4-15%, more preferably 7-12%, for example 8%, 10%) of composite surfactant. For example, the composite surfactant may be a combination of an alkyl glycoside surfactant and a fatty alcohol polyglycol ether sulfate in a weight ratio of 3:1 to 1:3 (e.g., 2:1 to 1:2, preferably 1.5:1, more preferably 1:1), or a combination of an alkyl glycoside surfactant and an alcohol ether carboxylate surfactant in a weight ratio of 6:1 to 1:40 (e.g., 4:1 to 1:30, preferably 2:1 to 1:15, more preferably 1: 10).
The alkyl glycoside may be, for example, a C8-C12 alkyl glycoside, and may be, for example, dodecyl glycoside.
The fatty alcohol polyglycol ether sulfate may be, for example, sodium fatty alcohol polyglycol ether sulfate.
The alcohol ether carboxylate surfactant may be, for example, sodium C8-C12 alkyl alcohol ether carboxylate.
Preferably, the above herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 1-15% of alkyl glycoside surfactant, 2-5% of fatty alcohol polyglycol ether sulfate and the balance of water.
Optionally, the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 0.5-3% of alkyl glycoside surfactant, 17-19.5% of alcohol ether carboxylate surfactant and the balance of water.
Preferably, the herbicidal composition of the present invention may further comprise 1 to 5% by weight of an organic solvent, preferably 1.5 to 3.5%, e.g. 2%, 2.5%.
The organic solvent is selected from ethanol, methanol, N-dimethylformamide, dimethyl sulfoxide, and cyclohexanone.
Furthermore, the weeding composition can also comprise one or more auxiliary agents of filler, penetrant, binder, stabilizer, safener, synergist and disintegrant.
The filler used in the present invention may be selected from kaolin, bentonite, white carbon black, light calcium carbonate.
In the weeding composition, the glufosinate-ammonium molecular structure contains carboxyl, hydroxyl, amino and phosphonyl, and the haloxyfop-R-methyl contains acyl and halogen groups-Cl and-F, so that the active ingredient and the composite surfactant, namely a plurality of alcoholic hydroxyl groups in alkyl glycoside, a plurality of ether bonds and carboxyl groups in fatty alcohol polyglycol ether sulfate or alcohol ether carboxylate can form a three-dimensional net hydrogen bond structure, and the surface activity of the composite surfactant has a small contact angle on the surface of a plant, so that the composite surfactant can be better contacted with the surface of the plant, and the contact time is prolonged. Because the glufosinate-ammonium, the high-efficiency haloxyfop-methyl, the alkyl glycoside, the fatty alcohol polyglycol ether sulfate or the alcohol ether carboxylate have excellent water solubility and biodegradability, the salt can be quickly absorbed by plants, thereby realizing the quick and high-efficiency weeding effect.
The percentage of the active ingredient is 0.5 to 30%, preferably 1 to 25%, more preferably 2.5 to 20%, such as 5%, 7%, 10%, 15%, 20%, 23%, etc., based on the total weight of the herbicidal composition.
The dosage form of the weeding composition is selected from wettable powder, granules, suspending agents, micro-emulsions, aqueous emulsions, oil suspending agents, aqueous suspending agents, colloidal agents and missible oil.
The herbicidal composition is used in an effective amount of 0.5 to 100g (a.i.)/ha, preferably 1 to 80g (a.i.)/ha, 5 to 68g (a.i.)/ha, more preferably 15 to 50g (a.i.)/ha, more preferably 20 to 45g (a.i.)/ha, for example 25g (a.i.)/ha, 30g (a.i.)/ha, 40g (a.i.)/ha.
The herbicidal compositions according to the present invention may be provided in the form of a finished formulation, i.e. the ingredients of the composition have been mixed, or the ingredients of the composition may be provided in a single dose, mixed directly in a tank or tank prior to use and then diluted to the desired concentration.
The weeding composition can be used for preventing and controlling weeds in cultivated land and non-cultivated land by compounding the glufosinate-ammonium and the haloxyfop-R-methyl. Especially against grassy weeds, with significantly better selectivity at significantly lower doses.
Furthermore, the combination of the glufosinate-ammonium, the haloxyfop-R-methyl and the specific composite surfactant improves the contact characteristic of the liquid drops of the medicine and the surface of the plant, thereby prolonging the contact time of the liquid drops of the plant and enlarging the contact area. Therefore, the combination of glufosinate-ammonium, haloxyfop-R-methyl and the composite surfactant further improves the weeding efficiency of the weeding composition.
Specific examples will be listed below to representatively illustrate embodiments of the present invention.
The composition takes glufosinate-ammonium as an active ingredient (A), and haloxyfop-R-methyl and/or other herbicide active agents as an active ingredient (B) to form binary or multi-element compounding, and the combination of the two components has obvious synergistic effect on weed control.
Indoor toxicity test
The determination method comprises the following steps: in the indoor potting method, barnyard grass, goosegrass herb, nutgrass flatsedge and chenopodium album are subjected to stem leaf treatment by using a spray tower. Fresh weight inhibition was determined 15 days after dosingRate control and ED calculation50Value and co-toxicity coefficient, and the herbicidal activity of the agent is evaluated.
The method for evaluating the binary herbicide combined action mode by using the Sunpeiyun co-toxicity coefficient method has the following formula:
in the formula:
ATI-measured toxicity index of mixed agent;
S-ED 50/90 for standard agents;
M-ED 50/90 in admixture;
TTI＝A×PA+B×PB
in the formula:
TTI-theoretical virulence index of the mixture;
A-A agent virulence index;
B-B agent virulence index;
the percentage content of the PA-A medicament in the mixture;
the percentage content of the PB-B medicament in the mixture;
in the formula:
CTC-co-toxicity coefficient;
ATI-measured toxicity index of mixed agent;
TTI-theoretical virulence index of the mixture.
And (3) judging standard: CTC > 120 is synergistic; CTC less than 80 is antagonistic; 80 < CTC < 120 is additive.
Examples
Example 1 glufosinate-ammonium + haloxyfop-R-methyl
Indoor toxicity test
The compounded agents of glufosinate-ammonium and haloxyfop-R-methyl were tested according to the above indoor toxicity test, and the co-toxicity coefficient was calculated according to the grand Pepper's co-toxicity coefficient method, and the results are shown in Table 1.
TABLE 1 toxicity test results of the combination of glufosinate-ammonium and haloxyfop-R-methyl on the fresh weight of goosegrass
As can be seen from the toxicity test results of the glufosinate-ammonium and haloxyfop-R-methyl compounded reagent according to the embodiment 1 shown in the table 1, when the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl compounded reagent is within the range of 1: 80-80: 1, the two binary compounded reagents both have a cotoxicity coefficient of more than 120, namely, the compounded reagents have a remarkable synergistic effect. When the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl is 90:1, 1:90, 1:100 or 100:1, the cotoxicity coefficients are respectively 77.6, 108.7, 105.7 and 61.1, and are all less than 120, so that the glufosinate-ammonium and the haloxyfop-R-methyl in the ratio have no synergistic effect.
(II) field herbicide efficacy test
Reagents according to the compositions shown in table 2 were prepared into pesticide formulations and applied within the test area to evaluate the efficacy of these pesticide formulations.
The test method comprises the following steps: accurately weighing each medicament according to the area of a test area, diluting with water, and uniformly spraying by using a knapsack sprayer. The spray head is a special fan-shaped spray head for weeding, and the spray head is sprayed in the afternoon without wind in sunny days. When spraying, the liquid medicine is uniformly sprayed into a test cell, so that the repeated spraying and the missing spraying are avoided.
After the test is finished, the weed death condition is observed at 20 days after the drug is applied, 1 square meter is randomly selected from each plot for weed mortality investigation, and the control effect is calculated. The results are shown in Table 3.
TABLE 2 composition of the formulations and comparative formulations (one)
Note: the parts by weight of the ingredients are listed in the table above.
TABLE 3 field efficacy test (I)
As shown in tables 2 and 3, the test results show that after the glufosinate-ammonium, the haloxyfop-R-methyl, the dodecyl glucoside and the octanol sodium glycol ether sulfate are compounded, the control efficiency is improved after 20 days of application compared with respective single agents and compound preparations lacking one of the components, and the control effects on weeds, particularly the control effects on eleusine indica and setaria viridis are obviously improved. More specifically, referring to the preparation 2 and the comparative preparations 3 and 4, when only one of glufosinate-ammonium and haloxyfop-R-methyl is taken as an active ingredient, the weeding effect is obviously lower than that of a compound preparation of the two. Referring again to the preparations 5 and 6, the herbicidal effects of the preparations 5 and 6 are significantly higher than those of the above-mentioned glufosinate-ammonium and haloxyfop-R-methyl single agent. Referring to the comparative preparations 5 and 6, when the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl is beyond the range of 1: 80-80: 1, the weeding effect is low.
TABLE 4 composition of the formulation and comparative formulation (two)
Note: the parts by weight of the ingredients are listed in the table above.
TABLE 5 field test of efficacy
As shown in tables 4 and 5, the test results show that after the glufosinate-ammonium, the haloxyfop-R-methyl, the dodecyl glucoside and the sodium dodecyl alcohol ether carboxylate are compounded, the control efficiency is improved, and the control effect on weeds is obviously improved. More specifically, referring to formulation 7 and comparative formulations 9 and 10, when the weight ratio of the components in the complex surfactant is out of the range of 6:1 to 1:40, the herbicidal effect is low.
TABLE 6 composition of formulation and comparative formulation (III)
Note: the parts by weight of the ingredients are listed in the table above.
TABLE 7 field test of efficacy (III)
As shown in tables 6 and 7, the test results show that, when formulation 2 is compared with comparative formulation 11, even if glufosinate and haloxyfop-R-methyl are compounded as in comparative formulation 11, the control efficiency is far inferior to that of formulation 2 at the same effective dosage of 5g (a.i.)/ha. Referring to comparative formulations 12 and 13, when glufosinate and haloxyfop-R-methyl were so formulated with other surfactants, the herbicidal effect was also lower than that of formulation 2.
Example 2 ternary compounding of glufosinate-ammonium, haloxyfop-R-methyl and quizalofop-p-ethyl
The compounded agents of glufosinate-ammonium, haloxyfop-p-methyl and quizalofop-p-ethyl were tested according to the above indoor toxicity test, and the cotoxicity coefficient was calculated according to the granddaun cotoxicity coefficient method, and the results are shown in table 8 below.
TABLE 8 toxicity test results of compounding glufosinate-ammonium, haloxyfop-R-methyl and quizalofop-p-ethyl on fresh weight of Cyperus rotundus
As can be seen from the toxicity test results of the glufosinate-ammonium, haloxyfop-R-methyl and quizalofop-p-ethyl compound reagents shown in the table 8, when the weight ratio of the glufosinate-ammonium, the haloxyfop-R-methyl and the quizalofop-p-ethyl is within the range of 1:40: 40-80: 0.5:0.5, the three ternary compound reagents have a cotoxicity coefficient larger than 120, namely the compound reagents have an obvious synergistic effect. When the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl and the quizalofop-p-ethyl is 90:0.5:0.5, 1:45:45 or 100:0.5:0.5, the cotoxicity coefficients are respectively 23.8, 35.4 and 17.1, and are all less than 120, so that the glufosinate-ammonium, the haloxyfop-R-methyl and the quizalofop-p-ethyl in the ratio have no synergistic effect.
Example 3 ternary compounding of glufosinate-ammonium, haloxyfop-R-methyl and 2-methyl-4-chloro
The combination of glufosinate-ammonium, haloxyfop-R-methyl and 2-methyl-4-chloro was tested according to the above indoor toxicity test, and the co-toxicity coefficient was calculated according to the granddaun co-toxicity coefficient method, and the results are shown in table 9 below.
TABLE 9 toxicity test results of compounding of glufosinate-ammonium, haloxyfop-R-methyl and 2-methyl-4-chloro to green grass fresh weight
As can be seen from the toxicity test results of the glufosinate-ammonium, haloxyfop-R-methyl and 2-methyl-4-chloro compound reagent shown in the table 9, when the weight ratio of the glufosinate-ammonium, the haloxyfop-R-methyl and the 2-methyl-4-chloro compound reagent to the haloxyfop-methyl and the 2-methyl-4-chloro compound reagent is within the range of 1:40: 40-80: 0.5:0.5, the three compound reagents all have a co-toxicity coefficient greater than 120, namely the compound reagents all have an obvious synergistic effect. When the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl and the 2-methyl-4-chloro is 90:0.5:0.5, 1:45:45 or 100:0.5:0.5, the cotoxicity coefficients are respectively 34.5, 44.4 and 20.6 which are all less than 120, so that the glufosinate-ammonium, the haloxyfop-R-methyl and the 2-methyl-4-chloro in the ratio have no synergistic effect.
Example 4 ternary compounding of glufosinate-ammonium, haloxyfop-R-methyl and triclopyr
The combination of glufosinate-ammonium, haloxyfop-R-methyl and triclopyr was tested according to the above-described indoor toxicity test and the cotoxicity coefficient was calculated according to the granddaun cotoxicity coefficient method, and the results are shown in table 10 below.
TABLE 10 toxicity test results of the combination of glufosinate-ammonium, haloxyfop-R-methyl and triclopyr on fresh weight of snakehead
As can be seen from the toxicity test results of the compound reagents of glufosinate-ammonium, haloxyfop-R-methyl and triclopyr shown in the table 10, when the weight ratio of the three is in the range of 1:40: 40-80: 0.5:0.5, the three compound reagents of glufosinate-ammonium, haloxyfop-R-methyl and triclopyr have a co-toxicity coefficient of more than 120, namely the compound reagents have obvious synergistic effect. When the weight ratio of the glufosinate-ammonium to the haloxyfop-R-methyl and the triclopyr is 90:0.5:0.5, 1:45:45 or 100:0.5:0.5, the cotoxicity coefficients are respectively 24.7, 41.9 and 19.6 which are all less than 120, so that the glufosinate-ammonium, the haloxyfop-R-methyl and the triclopyr in the ratio have no synergistic effect.
Test of field weeding effect
Formulations were prepared according to the compositions shown in table 11, and field herbicidal efficacy tests were carried out with reference to the method of example 1, and the results are shown in table 12.
TABLE 11 composition of the formulations and comparative formulations (IV)
Note: the parts by weight of the ingredients are listed in the table above.
TABLE 12 field test of efficacy (IV)
As shown in tables 11 and 12, test results show that after the glufosinate-ammonium, the haloxyfop-R-methyl, the quizalofop-p-ethyl or the 2-methyl-4-chloro or the triclopyr, the dodecyl glycoside and the octanol sodium polyoxyethylene ether sulfate or the dodecyl glycoside and the sodium dodecyl alcohol ether carboxylate are compounded, the prevention effect is obvious after 20 days of application, mutual support effect is realized, and obvious synergistic effect is realized.
Claims (10)
1. The weeding composition is characterized by comprising an active ingredient A and an active ingredient B, wherein the active ingredient A is glufosinate-ammonium, the active ingredient B comprises haloxyfop-R-methyl, and the weight ratio of the active ingredient A to the active ingredient B is 1: 80-80: 1.
2. A herbicidal composition according to claim 1, wherein the weight percentage of active ingredient a and active ingredient B is 0.5 to 30% based on the total weight of the herbicidal composition.
3. A herbicidal composition according to claim 1 or 2, wherein the effective amount of the herbicidal composition is from 0.5 to 100g (a.i.)/ha.
4. A herbicidal composition according to claim 1 or 2, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl and 3-20% of composite surfactant.
5. The herbicidal composition of claim 4, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 1-15% of alkyl glycoside surfactant, 2-5% of fatty alcohol polyglycol ether sulfate and the balance of water.
6. The herbicidal composition of claim 4, wherein the herbicidal composition comprises, based on the total weight of the herbicidal composition: 5-20% of glufosinate-ammonium, 2-6% of haloxyfop-R-methyl, 0.5-3% of alkyl glycoside surfactant, 17-19.5% of alcohol ether carboxylate surfactant and the balance of water.
7. A herbicidal composition according to claim 1 or 2, wherein the active ingredient B further comprises one or more of quizalofop-p-ethyl, clethodim, glyphosate, 2-methyl-4-chloro, dicamba, penoxsulam, metamifop, bispyribac-sodium, saflufenacil, fluroxypyr, triclopyr.
8. A herbicidal composition according to claim 1 or 2, wherein the herbicidal composition further comprises one or more adjuvants selected from fillers, penetrants, binders, stabilizers, safeners, synergists.
9. The herbicidal composition according to claim 1 or 2, wherein the formulation of the herbicidal composition is selected from the group consisting of wettable powders, dusts, granules, suspensions, microemulsions, aqueous emulsions, oil suspensions, aqueous suspensions, colloids and emulsifiable concentrates.
10. Use of the herbicidal composition according to any one of claims 1 to 9 for controlling weeds.
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| CN113016453A (en) * | 2021-03-03 | 2021-06-25 | 浙江东郁广陈果业有限公司 | Apple nursery weeding method |
| CN114617132A (en) * | 2022-04-20 | 2022-06-14 | 浙江新安化工集团股份有限公司 | Weeding composition, herbicide and preparation method |
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| WO2018055583A1 (en) * | 2016-09-26 | 2018-03-29 | Upl Limited | A process of controlling weeds |
| CN108064878A (en) * | 2016-11-10 | 2018-05-25 | 四川利尔作物科学有限公司 | Herbicidal combinations and its application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018055583A1 (en) * | 2016-09-26 | 2018-03-29 | Upl Limited | A process of controlling weeds |
| CN108064878A (en) * | 2016-11-10 | 2018-05-25 | 四川利尔作物科学有限公司 | Herbicidal combinations and its application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016453A (en) * | 2021-03-03 | 2021-06-25 | 浙江东郁广陈果业有限公司 | Apple nursery weeding method |
| CN114617132A (en) * | 2022-04-20 | 2022-06-14 | 浙江新安化工集团股份有限公司 | Weeding composition, herbicide and preparation method |
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