CN111165509A - Composition and method for preventing and removing non-cultivated land weeds - Google Patents
Composition and method for preventing and removing non-cultivated land weeds Download PDFInfo
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- CN111165509A CN111165509A CN202010041067.5A CN202010041067A CN111165509A CN 111165509 A CN111165509 A CN 111165509A CN 202010041067 A CN202010041067 A CN 202010041067A CN 111165509 A CN111165509 A CN 111165509A
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- glyphosate
- composition
- weeds
- triclopyr
- glufosinate
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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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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a weeding composition for preventing and removing weeds in non-cultivated land. In particular to a weeding composition containing glyphosate or salt thereof, triclopyr or salt thereof and glufosinate or salt thereof. The weight-to-weight ratio of the active ingredients in the composition is selected from 10-100:1-50:1-50, preferably 10-80:1-30:1-30, more preferably 10-60:1-20:1-20, especially 13-53:1-11: 1-11. The sum of the contents of the active ingredients is 1 to 99 percent of the total weight of the composition, and preferably 10 to 95 percent. The composition can be prepared into a suspending agent, a water dispersible granule, an aqueous emulsion, a microemulsion or an emulsifiable concentrate type, in particular to wettable powder, which is suitable for agricultural production. The composition is used for preventing and killing uncultivated land weeds, in particular crabgrass, cyperus rotundus, erigeron breviscapus, amaranthus retroflexus, cockspur grass, picrass, cudweed and piemarker.
Description
Technical Field
The invention belongs to the technical field of pesticide compounding, and simultaneously relates to a specific formulation processing technology, and a use and a method for preventing and removing non-cultivated land weeds.
Background
Glyphosate, the english common name Glyphosate, a non-selective herbicide, acts in a way that blocks the activity of 5-enolpyruvylshikimate-3-phosphonate (EPSP) salt synthase.
Glufosinate, a generic name in english, 4- [ hydroxy (methyl) phosphonyl ] -D, L-homoalanine, prevents glutamine synthesis by inhibiting GS synthesis, causes nitrogen metabolism disorder and ammonium ion accumulation, plant photosynthesis cannot be normally performed, and finally, plants die. The herbicide composition is mainly used for preventing and killing annual and perennial grassy weeds such as goosegrass crabgrass and the like, broad leaf weeds and cyperaceae weeds in orchard vineyards and non-cultivated lands.
Triclopyr, the english common name Triclopyr, an organic heterocyclic selective systemic herbicide, by acting on nucleic acid metabolism, can effectively control broadleaf weeds, but is not effective against grassy and sedge weeds.
Among a plurality of herbicides, glyphosate is a variety with slow weed resistance, and the herbicide resistance is not caused after the herbicide is used for 20 years, but since glyphosate-resistant crops are widely popularized, the no-tillage area is enlarged, the application condition of the herbicide is greatly changed, the glyphosate is used for many times every year, and the treatment for many times before sowing and after emergence of seedlings causes the selective pressure to be greatly enhanced, the development of glyphosate-resistant or tolerant weeds is promoted, and the resistance of weeds to glyphosate becomes a problem increasingly. Meanwhile, in the application of glyphosate, researchers find that the glyphosate removing effect is poor for part of perennial malignant weeds.
Disclosure of Invention
In order to solve the problems, the inventor of the present application found through previous research that the combination of glufosinate-ammonium or its salt, triclopyr or its salt (especially butoxyethyl triclopyr) and glyphosate or its salt has a good effect of preventing and killing malignant weeds in non-cultivated land.
On the other hand, the inventor screens out a series of auxiliary agents through a large number of tests, and prepares a preparation with excellent performance by combining a specific auxiliary agent and a specific process, so that the marketing requirement of the product is met.
In another aspect of the present application, a method of controlling non-cultivated land weeds is provided.
The technical scheme adopted by the application is as follows:
a weeding composition containing glyphosate comprises glyphosate, triclopyr butoxyethyl ester and glufosinate in a weight ratio range of 10-100:1-50:1-50, preferably 10-80:1-30:1-30, further preferably 10-60:1-20:1-20, and especially 13-53:1-11: 1-11. The sum of the contents of the active ingredients is 1 to 99 percent of the total weight of the composition, and preferably 10 to 95 percent.
The composition can be prepared into a suspending agent, a water dispersible granule, an aqueous emulsion, a microemulsion or an emulsifiable agent type suitable for agricultural production. The dosage form may be formulated according to dosage form processing techniques known to those skilled in the art by screening for a variety of adjuvants appropriate to the dosage form. Although the inventor expresses that the preparation is prepared into corresponding dosage forms according to the dosage form processing technology known by the technical personnel in the field, the technical personnel in the field know that the preparation of a preparation with stable performance and outstanding drug effect is extremely difficult. The screening of the auxiliary agent is not only simple as that of the physicochemical property of the raw pesticide. The following additives are obtained by the inventor through the analysis of the physicochemical properties of the active ingredients of the herbicide and the combination of the formulation processing theory and the formulation processing experience for many years.
Optional additives for preparing the water dispersible granule comprise: wetting dispersants such as sodium dodecylbenzenesulfonate, lignosulfonate, alkylnaphthalenesulfonate or naphthalenesulfonate formaldehyde condensate; disintegrants such as ammonium sulphate, polyvinylpyrrolidone, starch or bentonite; binders such as polyethylene glycol, polyvinyl alcohol, sodium carboxymethylcellulose or sucrose; the filler is selected from bentonite, diatomaceous earth, kaolin, white carbon black, light calcium, talcum powder or attapulgite.
Optional adjuvants for the formulation of suspending agents include: dispersants such as naphthalene sulfonate formaldehyde condensate, lignosulfonate, alkylnaphthalene sulfonate (dispersant NNO) or TERSPERSE 2020 (alkyl naphthalene sulfonate, available from henseme, usa); emulsifiers such as Nongru 700# (common name: alkylphenol formaldehyde resin polyoxyethylene ether), Nongru 2201, span-60 # (common name: sorbitan stearate), Tween-60 # (common name: polyoxyethylene sorbitan stearate), Nongru 1601# (common name: triphenylethylphenol polyoxypropylene polyoxyethylene block polymer), or TERSPERSE4894 (available from Hensmei corporation, USA); wetting agents such as alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate, alkylsulfate, alkylsulfonate, naphthalenesulfonate or TERSPERSE 2500 (available from henseme, usa); thickeners such as xanthan gum, polyvinyl alcohol, organic bentonite or magnesium aluminum silicate; preservatives such as benzoic acid or sodium benzoate; stabilizers such as epoxidized soybean oil, epichlorohydrin or triphenyl phosphate; defoaming agents such as silicone-based defoaming agents; antifreezes such as ethylene glycol, propylene glycol, glycerol, urea or inorganic salts; the water is deionized water.
Optional additives for preparing the aqueous emulsion comprise: emulsifiers such as nonylphenol polyoxyethylene (EO 10) ether phosphate, tristyrylphenol polyoxyethylene ether phosphate, Nongru No. 700 (common name: alkylphenol formaldehyde resin polyoxyethylene ether), Nongru No. 2201, span-60 (common name: sorbitan stearate), Tween-60 (common name: polyoxyethylene sorbitan stearate), TX-10 (common name: octylphenol polyoxyethylene (10) ether), Nongru 1601 (common name: tristyrylphenol polyoxypropylene polyoxyethylene block polymer), Nongru No. 600, or Nongru No. 400; solvents such as xylene, toluene, cyclohexanone or mineral spirits (trade names: S-150, S-180, S-200); stabilizers such as triphenyl phosphite, epichlorohydrin or epoxidized soybean oil; an antifreezing agent: ethylene glycol, propylene glycol, glycerin, urea, or inorganic salts; thickeners such as xanthan gum, polyvinyl alcohol, bentonite or magnesium aluminum silicate; preservatives such as benzoic acid or sodium benzoate; the water is deionized water.
Optional adjuvants for the formulation of microemulsions include: the emulsifier is selected from calcium dodecylbenzene sulfonate (Nongru 500#), Nongru 700#, Nongru 2201, span-60 #, Tween 60#, TX-10, Nongru 1601 (common name: phenethylphenol polyoxyethylene polyoxypropylene ether), Nongru 600# or Nongru 400 #; the solvent is selected from cyclohexanone, N-methyl pyrrolidone or solvent oil (trade name: S-150, S-180, S-200); the stabilizer is selected from triphenyl phosphite or epichlorohydrin; the water is deionized water.
The invention has the beneficial technical effects that:
compared with a single agent, the herbicide can obtain better control effect under the condition of reducing the dosage of the corresponding single agent, and has obvious synergistic effect on the non-cultivated malignant weeds.
The prepared wettable powder has stable property and good pesticide effect, and meets the safety requirement of pesticide preparation in field application.
Detailed Description
Indoor bioassay
1. Test agent and test material
95% glyphosate (glyphosate) raw drug provided by Anhui distant view crop protection Co., Ltd;
99% butoxyethyl triclopyr (triclopyr-butyl) technical, available from Anhui prospective crop protection, Inc.;
95% glufosinate-ammonium technical, provided by Anhui Jing crop protection, Inc.
Large crabgrass [ Echinochloacrusgalli (L.). Beauv. ]: collecting seeds in the fields of Anhui long-run crop protection Limited company and storing the seeds;
cyperus rotundus [ Leptochloa chinensis (L.) Nees ]: collecting seeds in the fields of Anhui long-run crop protection Limited company and storing the seeds;
erigeron breviscapus [ Monochoriapauciflora (Bl.) Kunth ]: collecting seeds in the fields of Anhui long-run crop protection Limited company and storing the seeds;
amaranthus retroflexus [ Cyperus difformis L ]: seeds are collected and stored in the fields of Anhui long-run crop protection Limited.
2. Test method
2.1 design of test treatment
(1) Glyphosate 260g (a.i.)/hm2
(2) Glyphosate 460g (a.i.)/hm2
(3) Glyphosate 660g (a.i.)/hm2
(4) Glyphosate 860g (a.i.)/hm2
(5) Glyphosate 1060g (a.i.)/hm2
(6) Triclopyr butoxyethyl ester 20g (a.i.)/hm2
(7) Triclopyr butoxyethyl ester 70g (a.i.)/hm2
(8) Triclopyr butoxyethyl ester 120g (a.i.)/hm2
(9) Triclopyr butoxyethyl ester 170g (a.i.)/hm2
(10) Triclopyr butoxyethyl ester 220g (a.i.)/hm2
(11) Glufosinate-ammonium 20g (a.i.)/hm2
(12) Glufosinate-ammonium 70g (a.i.)/hm2
(13) Glufosinate-ammonium 120g (a.i.)/hm2
(14) Glufosinate-ammonium 170g (a.i.)/hm2
(15) Glufosinate-ammonium 220g (a.i.)/hm2
(16) Glyphosate 260g + butoxyethyl triclopyr 220g + glufosinate 220g (a.i.)/hm2
(17) Glyphosate 460g + butoxyethyl triclopyr 170g + glufosinate 170g (a.i.)/hm2
(18) Glyphosate 660g + butoxyethyl triclopyr 120g + glufosinate-ammonium 120g (a.i.)/hm2
(19) 860g of glyphosate, 70g of butoxyethyl triclopyr and 70g (a.i.)/hm of glufosinate2
(20) Glyphosate 1060g + butoxyethyl triclopyr 20g + glufosinate 20g (a.i.)/hm2
(21)CK
2.2 Activity test of Agents on crab
Preparing liquid medicine according to the designed treatment dosage of 2.1, and preparing mother liquor of each medicament: 0.8421g of 95% glyphosate technical, 0.1515g of 99% triclopyr butoxyethyl ester technical and 0.1579g of 95% glufosinate technical are respectively weighed in a volumetric flask by a ten-thousandth electronic balance, and the glyphosate technical is dissolved by a plant-derived high-efficiency assistant SDP and then is added with 0.5% Tween 80 aqueous solution to be constant volume to 100ml, so as to obtain 8000mg/L glyphosate mother solution; dissolving triclopyr butoxyethyl ester raw drug and glufosinate raw drug with 5ml of acetone and water respectively, and fixing the volume to 100ml to obtain 1500mg/L triclopyr butoxyethyl ester mother liquor and 1500mg/L glufosinate mother liquor respectively for later use. Each treatment was repeated four times, and the specific formulation was shown in Table 1.
TABLE 1 preparation methods (0.25 m) of glyphosate, butoxyethyl triclopyr and glufosinate2Dosage of (2)
Sowing seeds of the large crabgrass to 0.25m of cross section area filled with soil after soaking seeds and accelerating germination2The soil is covered, and then the moisture is preserved in a bottom irrigation mode until the growth reaches 3 leaves and 1 heart stage. Spraying the liquid medicine by a POTTER precision laboratory spray tower, wherein the spraying amount is 50ml per treatment, keeping the soil moist after the liquid medicine is sprayed, and setting a clear water blank control. Repeating the treatment for 4 times, weighing the fresh weight of the overground part of each treated crab grass 21 days after the application, calculating the percentage of inhibition of growth of the overground part of each treated crab grass (fresh weight control effect), and evaluating the combined action type of the combination of the three on the crab grass by using a Colby method. The theoretical survival rate of the mixed herbicide is calculated according to the following formula:
E0＝A×B×C×…N/100(N-1)(this test is a ternary formulation, so E0＝A×B×C/10000)
In the formula:
a is the survival rate of weeds when the herbicide 1 is used alone;
b is the survival rate of the weeds when the herbicide 2 is used alone;
c is the survival rate of the weeds when the herbicide 3 is used alone;
n is the number of the mixed herbicide varieties;
E1the fresh weight control effect obtained by using the herbicide is obtained, E is the fresh weight survival rate obtained by using the herbicide, and E is 100-E1；
E0-E>10% of the composition is synergistic effect; e0-E<-10% is antagonism; e0Values of E between. + -. 10% are additive effects.
2.3 Activity test of the Agents on Cyperus rotundus
After soaking seeds of cyperus rotundus L, accelerating germination and dibbling on the cross section area of soil filled with the seeds of cyperus rotundus L of 0.25m2The rest of the parts in the basin are 2.3.2.
2.4 Activity test of the Agents on erigeron breviscapus
After the erigeron breviscapus seeds are soaked, the erigeron breviscapus seeds are germinated and dibbled on the soil with the cross section of 0.25m2The rest of the parts in the basin are 2.3.2.
2.5 Activity test of Agents on Amaranthus retroflexus
After the Amaranthus retroflexus seeds are soaked, accelerating germination and dibbling on the cross section area of 0.25m filled with soil2The rest of the parts in the basin are 2.3.2.
3 results and analysis
3.1 Combined action of the combination on crab and Tang
TABLE 2 evaluation of the indoor efficacy of Glyphosate, butoxyethyl triclopyr and glufosinate in combination with crab grass (post-drug 21d)
3.2 Combined action of the combination on Cyperus rotundus
TABLE 3 indoor efficacy evaluation of Glyphosate, butoxyethyl triclopyr and glufosinate in combination with Cyperus rotundus (post-drug 21d)
3.3 Combined Effect of the combination on erigeron breviscapus
TABLE 4 indoor efficacy evaluation of Glyphosate, butoxyethyl triclopyr and glufosinate-ammonium for erigeron breviscapus (21 d post-drug)
3.4 Combined Effect of the combination on Amaranthus retroflexus
TABLE 5 indoor efficacy evaluation of glyphosate, triclopyr butoxyethyl ester and glufosinate in combination with Amaranthus retroflexus (post-drug 21d)
4 conclusions and suggestions
As can be seen from the data in tables 2-5, the E of the mixture of 5 glyphosate, butoxyethyl triclopyr and glufosinate-ammonium with different compounding ratios to crab grass, cyperus rotundus, horseweed herb and Amaranthus retroflexus0-E are all greater than 10%. The combined action of the glyphosate, the butoxyethyl triclopyr and the glufosinate on the 4 weeds is shown to be synergistic.
The production cost, the weeding effect and the safety of peripheral crops are comprehensively considered, and the ratio of the active ingredients of the glyphosate, the butoxyethyl triclopyr and the glufosinate is 66: 12: 12 (55: 10: 10) are compounded.
(II) formulation examples
An exemplary formulation: preparation of 75% glyphosate-triclopyr butoxyethyl ester-glufosinate wettable powder
578.9Kg of measured glyphosate technical, 105.3Kg of 95% butoxyethyl triclopyr technical, 105.3Kg of 95% glufosinate technical, auxiliary agents (50 Kg of sodium dodecyl benzene sulfonate, 40Kg of sodium naphthalene sulfonate formaldehyde condensation compound, 30Kg of ammonium sulfate and 20Kg of polyethylene glycol) and 70.5Kg of filler are mixed by a mixer, crushed by an airflow crusher, mixed again with diatomite after reaching the standard requirement, separated by cyclone, packaged and warehoused after being detected to be qualified.
The production process comprises the following steps:
1. feeding according to the principle of liquid first and solid second
2. Stirring, premixing, stirring for about 1h to fully mix the materials, wherein the step is a key control point.
3. After fully mixing, starting the jet mill to crush, adding diatomite and mixing again after meeting the standard requirement, and performing cyclone separation.
4. And then detecting, and detecting each index according to enterprise standards.
5. Analyzing and detecting qualified subpackage, unqualified reworking for reworking
6. The materials are qualified in the warehouse entry through the measurement and detection, and the materials are required to be reworked for packaging or stirred and mixed again when the materials are unqualified
7. The key points are analysis monitoring points, sampling analysis is needed, the qualified product enters the next procedure, and the unqualified product is reworked.
Project index control of 75% glyphosate-triclopyr butoxyethyl ester-glufosinate wettable powder
(III) field efficacy test
The field efficacy test control object for controlling the total weeds in the non-cultivated land by 75 percent of glyphosate, triclopyr, butoxyethyl ester and glufosinate WP comprises the following components: non-cultivated land weeds, samples were counted, barnyard grass (Echinochloa crusgalli), oryza sativa (Setaria viridis), Pachyrhizus equiseti (Field Muskmelon), and Abutilon theophrasti (Abutilon theophrasti).
Reagent to be tested:
application method and water consumption (liter/hectare):
during the period of application, during the vigorous growth of weeds, the stem leaves are evenly sprayed by a knapsack manual sprayer, and the water consumption is 600 liters per hectare. The control effect of the plants is investigated 14 days after the pesticide is applied, the control effect and fresh weight control effect of the plants are investigated 28 days after the pesticide is applied, and the total control effect on the weeds is calculated by investigating barnyard grass, oryza sativa, cuckoo and piemarker.
And (3) test results:
therefore, compared with a single agent, the ternary combination of glyphosate, triclopyr and glufosinate can also obviously improve the weeding activity under the condition of reducing the dosage of the corresponding active ingredients, and obtains an unexpected control effect.
Claims (8)
1. A herbicidal composition comprising glyphosate for use in combating uncultivated weeds, said composition comprising: the active ingredients comprise A, B and C, wherein A is glyphosate or its salt, B is triclopyr or its salt, and C is glufosinate or its salt.
2. A herbicidal composition according to claim 1, characterized in that: b is triclopyr butoxyethyl ester.
3. A herbicidal composition according to claim 1 or 2, characterized in that: A. b, C is selected from 10-100:1-50:1-50, preferably 10-80:1-30:1-30, more preferably 10-60:1-20:1-20, especially 13-53:1-11: 1-11.
4. A herbicidal composition according to any one of claims 1 to 3, characterized in that: the weight percentage content of the active ingredients ranges from 1% to 99%, preferably from 10% to 95%.
5. A herbicidal composition according to claim 4, characterized in that: the herbicidal composition may be formulated into any agriculturally acceptable dosage form.
6. A herbicidal composition according to claim 5, characterized in that: the preparation is wettable powder.
7. Use of the herbicidal composition according to any one of claims 1 to 6 for combating uncultivated weeds.
8. The use according to claim 7, wherein the weeds are crabgrass, cyperus rotundus, erigeron breviscapus, cockspur grass, picrasma oryza sativa, cuckoo louse and piemarker.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022101618A1 (en) * | 2020-11-11 | 2022-05-19 | UPL Corporation Limited | A method of controlling herbicide resistant weeds |
| CN114903047A (en) * | 2021-02-10 | 2022-08-16 | 四川利尔作物科学有限公司 | Weeding composition containing photosystem II inhibitor and synthetic hormone compound and application thereof |
| WO2023067621A1 (en) * | 2021-10-18 | 2023-04-27 | Upl Limited | An agrochemical combination |
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| CN102027988A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Synergistic herbicide composition comprising triclopyr and glufosinate and application thereof |
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| WO2022101618A1 (en) * | 2020-11-11 | 2022-05-19 | UPL Corporation Limited | A method of controlling herbicide resistant weeds |
| CN114903047A (en) * | 2021-02-10 | 2022-08-16 | 四川利尔作物科学有限公司 | Weeding composition containing photosystem II inhibitor and synthetic hormone compound and application thereof |
| WO2023067621A1 (en) * | 2021-10-18 | 2023-04-27 | Upl Limited | An agrochemical combination |
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