CN111226975A - Gibberellin-containing mikania micrantha control agent and application thereof - Google Patents
Gibberellin-containing mikania micrantha control agent and application thereof Download PDFInfo
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- CN111226975A CN111226975A CN202010190866.9A CN202010190866A CN111226975A CN 111226975 A CN111226975 A CN 111226975A CN 202010190866 A CN202010190866 A CN 202010190866A CN 111226975 A CN111226975 A CN 111226975A
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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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
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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
- A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
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Abstract
The invention discloses a gibberellin-containing pesticide for preventing and removing mikania micrantha and application thereof, and relates to the field of invasive plant prevention and control. The effective components in the medicament are glyphosate, glufosinate-ammonium and gibberellin; the mass ratio of the glyphosate to the glufosinate to the gibberellin is 100: 55: 1.125 to 9. The invention utilizes the physiological regulation effect of gibberellin on plants to improve the conductivity of herbicides glyphosate and glufosinate in the plants, so that the compounding of the glyphosate and the glufosinate has obvious synergistic effect, the use amount and the spraying times of the herbicide are reduced, reliable guarantee is provided for effectively removing mikania micrantha in large-area mikania micrantha invasion fields, and good economic benefit and ecological benefit are achieved. The method is simple and convenient to operate, is suitable for large-area popularization and application in mikania micrantha invasion areas, accelerates prevention and removal of the mikania micrantha, and promotes recovery and healthy development of an ecological system of the invasion areas.
Description
Technical Field
The invention relates to the field of invasive plant prevention and control, in particular to a gibberellin-containing mikania micrantha prevention and control agent and application thereof, and specifically relates to a composition using glyphosate, glufosinate-ammonium and gibberellin to improve the mikania micrantha prevention and control effect and reduce the dosage of a herbicide.
Background
Mikania micrantha (Mikania micrantha Kunth), also called Eupatorium parviflorum or Eupatorium parviflorum, is a perennial herbaceous vine of Eupatorium in Compositae, has been widely spread in native middle and south America to tropical regions of Asia, and is one of the most harmful weeds. Mikania micrantha likes fertile and moist soil, is easier to grow under the condition of sufficient illumination, strives for sunlight by climbing, winding and covering adjacent plants, consumes a large amount of water and nutrients in the soil, threatens the growth of the adjacent plants, and obviously reduces the stability of a natural ecosystem of an invasive site. Therefore, the inhibition of the diffusion and spread of the mikania micrantha is of great significance for reducing the invasion hazard of the mikania micrantha and protecting the ecological safety of China.
At present, the prevention and treatment methods of mikania micrantha mainly comprise the following steps: (1) physical control: cleaning mikania micrantha by using a manual cleaning method; (2) chemical control: chemical herbicides such as glyphosate and atrazine are used for preventing and killing mikania micrantha; (3) biological control: controlling mikania micrantha by using natural enemy insects such as red spider mites, brilliant supple and graceful precious butterflies and the like, field dodder or pathogenic bacteria to inhibit the growth of the mikania micrantha; (4) community reconstruction: in places with serious harm to mikania micrantha, local broad-leaved trees are planted at proper time after the mikania micrantha is removed, and suitable plants with strong resistance to growth, arbor and shrub grasses are planted to reduce the occurrence area of the mikania micrantha. Wherein the physical prevention and treatment is difficult to eradicate and easy to relapse; chemical control easily pollutes the ecological environment; the biological control cost is high and the time is long; community reconstruction is most beneficial to an ecosystem of a mikania micrantha invasion place, but the community reconstruction is high in cost and complex in operation, and meanwhile, requirements on technical level and knowledge level are high, and large-scale popularization and application of the method are limited.
The glyphosate is the largest global use amount, is a non-selective and biocidal herbicide with broad spectrum, high efficiency and low toxicity, and is very effective for preventing and killing perennial rooted weeds. Glyphosate is absorbed by stems and leaves and then transferred to various parts of plants, and can prevent and kill monocotyledons, dicotyledons, annual and perennial plants, herbaceous plants, shrubs and other plants of more than 40 families. But the long-term and large-scale use of the herbicide results in that the resistance or tolerance of weeds to the herbicide is obviously enhanced. Glyphosate has presented significant challenges and pressure in recent years.
Glufosinate is a phosphonic acid non-selective conduction type herbicide and can inhibit glutamine synthetase in plant nitrogen metabolic pathways, so that metabolism of plants is interfered, and the plants die. Glufosinate-ammonium has the characteristics of broad spectrum, low toxicity, high activity, good environmental compatibility and the like, and the speed of playing the active action is superior to that of glyphosate and is slower than that of paraquat. At present, the herbicide is a non-selective herbicide coexisting with glyphosate and paraquat, and has a wide application prospect. Many weeds are sensitive to glufosinate and can be used as a substitute for glyphosate in areas where glyphosate is resistant.
Gibberellins are a plant growth hormone widely found in plants and are diterpene compounds. Gibberellin can promote the elongation of stems and accelerate the elongation and division of cells; meanwhile, gibberellin also has the physiological effects of promoting seed germination, promoting fruit growth, delaying fruit senescence, preventing organ abscission and the like. Gibberellins are widely used in agricultural production practices.
In view of the defects of the existing mikania micrantha control method, a control method which can effectively inhibit the growth of wild mikania micrantha and has the advantages of low cost, strong operability and quick response is designed and researched, and the method has very important practical significance for ecological management of the area damaged by invasion of mikania micrantha.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide a gibberellin-containing mikania micrantha control agent. The herbicide can promote weeds to quickly absorb the herbicide by utilizing the physiological regulation effect of the plant growth regulator on plants, thereby achieving the effects of reducing the use dosage and improving the pesticide effect, effectively controlling the weeds and slowing down the emergence of resistant weeds.
Another object of the present invention is to provide a method for accelerating the death of mikania micrantha using the above agent. The method can effectively prevent and control the diffusion and spread of the mikania micrantha, is suitable for preventing and controlling the invasion field of the mikania micrantha, is simple and convenient to operate, has low technical level requirement, reduces the dosage and the use times of the medicament, further reduces the cost, and is suitable for large-scale popularization and application.
The purpose of the invention is realized by the following technical scheme:
a gibberellin-containing pesticide for preventing and killing Mikania micrantha comprises glyphosate, glufosinate-ammonium and gibberellin as main active ingredients;
preferably, the mass ratio of the glyphosate to the glufosinate to the gibberellin is 100: 55: 1.125-9; more preferably 100: 55: 4.5 to 9.
The dosage of the active ingredient glyphosate in the gibberellin-containing mikania micrantha control agent is 600g/hm2。
The glyphosate comprises N- (phosphonomethyl) glycine and organic salt or inorganic salt derivatives thereof, such as glyphosate amine salt, glyphosate potassium salt, glyphosate isopropylamine salt and the like.
Preferably, the gibberellin-containing pesticide for preventing and killing mikania micrantha further comprises an auxiliary agent.
The auxiliary agent comprises one or more of a filler, a dispersing agent, an emulsifying agent, a wetting agent and a solvent.
Preferably, the filler comprises one or more of bentonite, kaolin, pottery clay, diatomite, ammonium sulfate and light calcium carbonate.
The dispersing agent comprises one or more of alkyl naphthalene sulfonate, sodium salt of naphthalene sulfonic acid formaldehyde condensate, calcium salt of alkyl benzene sulfonic acid, alkyl phenol polyoxyethylene ether formaldehyde condensate sulfate and lignosulfonate.
The emulsifier comprises one or a combination of more of triphenylethyl phenol polyoxyethylene ether phosphate, nonylphenol polyoxyethylene ether and agricultural emulsion 2201 #.
The wetting agent comprises one or more of dioctyl sodium sulfosuccinate, sodium dodecyl benzene sulfonate, alkali metal salts and amine salts of alkylbenzene sulfonate, sodium lauryl ether sulfate, alkylbenzene sulfonate and alkylphenol polyoxyethylene ether.
The solvent comprises one or more of water, ethanol, xylene and toluene.
The auxiliary agent has the main effect of assisting the herbicide composition to be prepared into different application formulations, including wettable powder, water dispersible granules, soluble powder, soluble granules, water aqua, emulsion in water, microemulsion and the like. Therefore, the adjuvant of the present invention is not limited to the above-mentioned species, and other auxiliary components and the control agents consisting of glyphosate, glufosinate-ammonium and gibberellin described in the present invention are also included in the scope of the present invention without departing from the concept of the present invention.
The gibberellin-containing mikania micrantha control agent can be processed and prepared into any one of formulations allowed in pesticides according to methods known by the technical personnel in the field, and the formulations include but are not limited to wettable powder, water dispersible granules, soluble powder, soluble granules, aqueous solutions, aqueous emulsions, microemulsions and the like.
The method for inhibiting the growth of mikania micrantha by using the gibberellin-containing agent for preventing and removing mikania micrantha comprises the following steps:
in the vigorous growth period of 5-9 months or the flowering period of 11-12 months, the gibberellin-containing mikania micrantha preventing and removing agent is applied to mikania micrantha, clear water is added for use, the mikania micrantha is applied to mikania micrantha plants 2 times per month, the spraying time is 14-15 days apart for 2 times, if rainy days occur, the mikania micrantha needs to be applied again, and the method is suitable for non-cultivated land areas where the mikania micrantha explodes in a large area.
The gibberellin-containing mikania micrantha control agent is characterized in that the use amount of active ingredients in the gibberellin-containing mikania micrantha control agent is 936.75-984 g/hm2Preferably 957-984 g/hm2Adding water to 600-675L/hm2。
In order to better achieve the aim of the invention, the method also comprises the following steps:
after the pesticide is sprayed to a mikania micrantha invasion field, a dead mikania micrantha plant is manually removed in time, and a properly growing arbor and shrub plant or dominant crops are planted to prevent the occurrence of the mikania micrantha in a large area again.
The following points need to be noted in the operation process of the invention: (1) the gibberellin dosage is low, and the accuracy (which can be moderately higher) needs to be paid attention to when the dosage (unit g) is calculated, so that errors are avoided; (2) in the spraying process, the medicines are required to be sprayed to the leaves and stems of the mikania micrantha plants, and the medicines are prevented from being sprayed to the soil below the mikania micrantha plants as far as possible, so that the soil pollution is avoided.
Compared with the prior art, the invention has the following advantages and effects:
(1) according to the invention, by compounding the plant growth regulator (gibberellin) with the herbicide glyphosate and glufosinate, the plant growth regulator has the transportation and conduction effects of regulating substances, promotes weeds to rapidly absorb the herbicide, improves the weeding effect of the herbicide, shortens the acting time, remarkably reduces the using amount and spraying times of the herbicide, and effectively reduces the harm of mikania micrantha to an invasive field. After the mikania micrantha is treated by the method, the competitiveness, the diffusion capacity and the hazard of the mikania micrantha are obviously reduced, the mikania micrantha is thoroughly prevented and removed, the biological diversity recovery and the increase of a local ecological system are facilitated, the healthy development of the ecological system is promoted, a reliable guarantee is provided for effectively removing the hazards of the mikania micrantha in a large-area mikania micrantha invasion field, and the economic benefit and the ecological benefit are good.
(2) The invention mainly adopts a state-approved safe and environment-friendly preparation form, namely an aqueous solution, is environment-friendly and does not contain organic solvents with large pollution; the herbicide composition has the advantages of wide herbicide controlling spectrum, long acting time, reduced dosage and times of administration, and less environmental pollution.
(3) The method can be matched with physical prevention and community improvement in a mikania micrantha prevention and treatment method and used as pretreatment to reduce the workload of manual mechanical removal.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The 41% glyphosate isopropylamine aqueous solution used in the examples (30% glyphosate content as the active ingredient), the 20% glufosinate aqueous solution and the 40% gibberellin water-soluble granules are all conventional commercial products.
The first embodiment is as follows: prevention and removal effect of different combinations of glyphosate, glufosinate-ammonium and gibberellin on growth vigorous period of mikania micrantha
A41% glyphosate isopropylamine aqueous solution, a 20% glufosinate aqueous solution and a 40% gibberellin water-soluble granule are respectively prepared into different herbicide agents according to the formula shown in the table 1, and then the herbicide agents are mixed with water to 600-675L. The treated group 1 with clear water was used as a control group (see table 1).
Selecting 2 sections of the older and sturdy mikania micrantha branches, cutting the branches into one section, planting the sections in a flowerpot with the diameter of 11.5cm and the height of 10cm, planting the sections in one pot, and supplying the sections for testing when the stem length of the mikania micrantha plant is 130-150 cm (namely the vigorous growth period).
The spraying method is adopted. Uniformly spraying stem leaves of mikania micrantha by using a quantitative sprayer, wherein the spraying amount is 600-675L/hm2Each of 20 pots of mikania micrantha was treated and the test was run in 3 replicates with clear water treatment as a control. The mikania micrantha plants were applied 2 times per month, with the spraying time being 15 days apart for 2 times. After 30 days, the number of surviving mikania micrantha plants was investigated.
The control effect (%) is [ ((number of plants in pot before treatment with drug-number of remaining plants in pot after treatment with drug)/number of plants in pot before treatment with drug) -x 100.
TABLE 1 formulation and application dosage for different combinations of glyphosate, glufosinate and gibberellin
The effect of the glyphosate, glufosinate-ammonium and gibberellin mixed with different combinations on controlling mikania micrantha is shown in the table 2. After 30 days of application, the control group is treated with clear water (treatment 1) to prevent and remove mikania micrantha; the control effects of spraying glyphosate (treatment 2) and glufosinate (treatment 3) on mikania micrantha are 61.7% and 58.3% respectively; the preventing and removing effect of spraying glyphosate and glufosinate (treatment 8) mikania micrantha is 85.0%; after the glyphosate or glufosinate-ammonium and the gibberellin are mixed, the preventing and removing effects on mikania micrantha are remarkably enhanced compared with the treatment 4 (73.3%), the treatment 5 (71.7%), the treatment 6 (81.7%), the treatment 7 (83.3%), the treatment 2 (61.7%) and the treatment 3 (58.3%), and the gibberellin can respectively enhance the weeding effects of the glyphosate and the glufosinate-ammonium; after the glyphosate, the glufosinate-ammonium and the gibberellin are mixed, the preventing and removing effects on the mikania micrantha by the treatment 9, the treatment 10, the treatment 11 and the treatment 12 are respectively 95.0%, 96.7%, 100% and 100%, and the results show that the preventing and removing effects on the mikania micrantha are better than the preventing and removing effects on the mikania micrantha by singly spraying the glyphosate, the glufosinate-ammonium, the glyphosate + the gibberellin, the glyphosate + the glufosinate-ammonium and the glufosinate-ammonium + the gibberellin after the glyphosate, the glufosinate-ammonium and. The herbicide (glyphosate and glufosinate) and the plant growth regulator (gibberellin) are mixed, so that the drug effects of the herbicide glyphosate and glufosinate are improved, the use amount of the herbicide is reduced, meanwhile, the Mikania micrantha has good prevention and removal effects, and the ecological harm of the Mikania micrantha to an invasive land can be effectively reduced.
Table 2 shows the control effect of different combinations of glyphosate, glufosinate-ammonium and gibberellin on the growth of mikania micrantha in the vigorous growth stage
Note: values are averages, with lower case and upper case letters indicating differences of 0.05 significance, 0.01 very significant levels, respectively.
The second embodiment: prevention and removal effect of different combinations of glyphosate, glufosinate-ammonium and gibberellin on flowering period of mikania micrantha
A41% glyphosate isopropylamine aqueous solution, a 20% glufosinate aqueous solution and a 40% gibberellin water-soluble granule are respectively prepared into different herbicide agents according to the formula shown in the table 1, and then the herbicide agents are mixed with water to 600-675L. The treated group 1 with clear water was used as a control group (see table 1).
Selecting and cutting each 2 nodes of the older and sturdy mikania micrantha branches into one node, planting the nodes in flowerpots with the diameter of 11.5cm and the height of 10cm, and planting the nodes in one strain in each pot for testing during the flowering period of the mikania micrantha.
The spraying method is adopted. Uniformly spraying stem leaves of mikania micrantha by using a quantitative sprayer, wherein the spraying amount is 600-675L/hm2Each of 25 pots of mikania micrantha was treated and the test was run in 3 replicates with clear water treatment as a control. The mikania micrantha plants were applied 2 times per month, with the spraying time being 15 days apart for 2 times. After 30 days, the number of surviving mikania micrantha plants was investigated.
The control effect (%) is [ ((number of plants in pot before treatment with drug-number of remaining plants in pot after treatment with drug)/number of plants in pot before treatment with drug) -x 100.
The effect of the glyphosate, glufosinate-ammonium and gibberellin mixed with different combinations on controlling mikania micrantha is shown in a table 3. After 30 days of application, the control group is treated with clear water (treatment 1) to prevent and remove mikania micrantha; the control effects of spraying glyphosate (treatment 2) and glufosinate (treatment 3) on mikania micrantha are 53.3% and 49.3% respectively; the control effect of spraying glyphosate and glufosinate (treatment 8) mikania micrantha is 81.3%; after the glyphosate or glufosinate-ammonium and the gibberellin are mixed, the treatment 4 (70.7%), the treatment 5 (66.7%), the treatment 6 (84.0%), the treatment 7 (82.7%) and the treatment 2 (53.3%) and the treatment 3 (49.3%) obviously enhance the control effect on mikania micrantha, and the gibberellin can respectively enhance the weeding effect of the glyphosate and the glufosinate-ammonium; after the glyphosate, the glufosinate-ammonium and the gibberellin are mixed, the preventing and removing effects on the mikania micrantha by the treatment 9, the treatment 10, the treatment 11 and the treatment 12 are respectively 94.7%, 96.0%, 98.7% and 100%, and the results show that the preventing and removing effects on the mikania micrantha are better than the preventing and removing effects on the mikania micrantha by singly spraying the glyphosate, the glufosinate-ammonium, the glyphosate + the gibberellin, the glyphosate + the glufosinate-ammonium and the glufosinate-ammonium + the gibberellin after the glyphosate, the glufosinate-ammonium and. The herbicide (glyphosate and glufosinate) and the plant growth regulator (gibberellin) are mixed, so that the drug effects of the herbicide glyphosate and glufosinate are improved, the use amount of the herbicide is reduced, meanwhile, the Mikania micrantha has a good prevention and removal effect, and the ecological harm of the Mikania micrantha to an invasive land can be effectively reduced.
TABLE 3 controlling effect of different combinations of glyphosate, glufosinate-ammonium and gibberellin on the flowering period of mikania micrantha
Note: values are averages, with lower case and upper case letters indicating differences of 0.05 significance, 0.01 very significant levels, respectively.
Therefore, the scheme of the invention has the following advantages and effects:
1. the method can effectively inhibit the invasion of the mikania micrantha and enhance the prevention and removal effect on the mikania micrantha, improves the conductivity of herbicides glyphosate and glufosinate in plants by utilizing the physiological regulation effect of gibberellin serving as a plant growth regulator on the plants, thereby achieving the purposes of reducing the dosage of the herbicide and reducing the spraying times of the herbicide, improving the drug effect of the herbicide, providing a theoretical basis for screening effective medicaments for controlling the mikania micrantha, providing reliable guarantee for effectively removing the mikania micrantha and promoting the ecological restoration and the healthy development of the mikania micrantha invasion place as soon as possible.
2. Improving the preventing and removing effect of mikania micrantha. The preventing and removing method can quickly prevent and remove the mikania micrantha in a short time and reduce the harm degree of the mikania micrantha.
3. The use amount and the spraying frequency of the herbicide are reduced. The preventing and removing method of the invention can obviously improve the preventing and removing effect on mikania micrantha and reduce the dosage of herbicide by mixing glyphosate, glufosinate-ammonium and gibberellin.
4. Is beneficial to promoting the ecological restoration and the healthy development of the ecological system of the mikania micrantha invasion place as soon as possible.
5. The method is simple and convenient to operate, is suitable for being popularized and applied in large areas of mikania micrantha invasion areas, can become a standardized method for mikania micrantha prevention and control, accelerates the prevention and control of mikania micrantha, and promotes the healthy development of ecological systems of the invasion areas.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A gibberellin-containing mikania micrantha control agent is characterized in that: the main effective components of the medicament are glyphosate, glufosinate-ammonium and gibberellin.
2. The gibberellin-containing mikania micrantha-controlling agent according to claim 1, wherein:
the mass ratio of the glyphosate to the glufosinate to the gibberellin is 100: 55: 1.125 to 9.
3. The gibberellin-containing mikania micrantha-controlling agent according to claim 2, wherein:
the mass ratio of the glyphosate to the glufosinate to the gibberellin is 100: 55: 4.5 to 9.
4. The gibberellin-containing mikania micrantha-controlling agent according to any one of claims 1 to 3, wherein: the dosage of the active ingredient glyphosate in the gibberellin-containing mikania micrantha control agent is 600g/hm2。
5. The gibberellin-containing mikania micrantha-controlling agent according to any one of claims 1 to 3, wherein: the gibberellin-containing pesticide for preventing and killing mikania micrantha also comprises an auxiliary agent, and is prepared into a pesticide allowable preparation formulation.
6. The gibberellin-containing mikania micrantha-controlling agent according to claim 5, wherein:
the auxiliary agent comprises one or more of a filler, a dispersing agent, an emulsifying agent, a wetting agent and a solvent.
7. The gibberellin-containing mikania micrantha-controlling agent according to claim 6, wherein:
the filler comprises one or more of bentonite, kaolin, argil, clay, diatomite, ammonium sulfate and light calcium carbonate;
the dispersing agent comprises one or a combination of more of alkyl naphthalene sulfonate, sodium salt of naphthalene sulfonic acid formaldehyde condensate, calcium salt of alkyl benzene sulfonic acid, alkyl phenol polyoxyethylene ether formaldehyde condensate sulfate and lignosulfonate;
the emulsifier comprises one or a combination of more of triphenylethyl phenol polyoxyethylene ether phosphate, nonylphenol polyoxyethylene ether and agricultural emulsion 2201 #;
the wetting agent comprises dioctyl sodium sulfosuccinate, sodium dodecyl benzene sulfonate, alkali metal salts and amine salts of alkyl benzene sulfonate, sodium lauryl ether sulfate, alkyl benzene sulfonate and one or more of alkylphenol polyoxyethylene ether;
the solvent comprises one or more of water, ethanol, xylene and toluene.
8. A method for inhibiting the growth of mikania micrantha by using the gibberellin-containing agent for controlling mikania micrantha according to any one of claims 1 to 7, comprising the steps of:
in the vigorous growth period of 5-9 months or the flowering period of 11-12 months, the gibberellin-containing mikania micrantha control agent is applied to mikania micrantha, clear water is added for use, the mikania micrantha plant is applied for 2 times per month, the spraying time is 14-15 days apart for 2 times, and the mikania micrantha needs to be applied again in rainy days, so that the method is suitable for non-cultivated areas where the mikania micrantha explodes in a large area.
9. The method of claim 8, further comprising the steps of:
after the mikania micrantha invasion field is sprayed with the chemical, the dead mikania micrantha plants are manually removed in time, and properly growing arbor and shrub plants or dominant crops are planted, so that the large area of the mikania micrantha is prevented from generating again.
10. The method according to claim 8 or 9, characterized in that:
the gibberellin-containing mikania micrantha control agent is characterized in that the use amount of active ingredients in the gibberellin-containing mikania micrantha control agent is 936.75-984 g/hm2Adding water to 600-675L/hm2。
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| CN113068710A (en) * | 2021-03-12 | 2021-07-06 | 深圳小洲生态环境有限公司 | Composition for preventing and treating mikania micrantha and application thereof |
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| CN111226975B (en) | 2021-03-26 |
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