CN114747583B - Plant growth inhibitor composition and application thereof - Google Patents
Plant growth inhibitor composition and application thereof Download PDFInfo
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- CN114747583B CN114747583B CN202210552820.6A CN202210552820A CN114747583B CN 114747583 B CN114747583 B CN 114747583B CN 202210552820 A CN202210552820 A CN 202210552820A CN 114747583 B CN114747583 B CN 114747583B
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- plant growth
- agent
- cultivated land
- growth inhibitor
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- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 239000002373 plant growth inhibitor Substances 0.000 title claims abstract description 38
- PWVXXGRKLHYWKM-UHFFFAOYSA-N 5-[2-(benzenesulfonyl)ethyl]-3-[(1-methylpyrrolidin-2-yl)methyl]-1h-indole Chemical compound CN1CCCC1CC(C1=C2)=CNC1=CC=C2CCS(=O)(=O)C1=CC=CC=C1 PWVXXGRKLHYWKM-UHFFFAOYSA-N 0.000 claims abstract description 15
- RMOGWMIKYWRTKW-UONOGXRCSA-N (S,S)-paclobutrazol Chemical compound C([C@@H]([C@@H](O)C(C)(C)C)N1N=CN=C1)C1=CC=C(Cl)C=C1 RMOGWMIKYWRTKW-UONOGXRCSA-N 0.000 claims abstract description 13
- 239000005985 Paclobutrazol Substances 0.000 claims abstract description 13
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000004009 herbicide Substances 0.000 claims abstract description 11
- 230000002363 herbicidal effect Effects 0.000 claims abstract description 10
- -1 tri-nitrogen benzene Chemical compound 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000003112 inhibitor Substances 0.000 claims description 17
- MXWJVTOOROXGIU-UHFFFAOYSA-N atrazine Chemical group CCNC1=NC(Cl)=NC(NC(C)C)=N1 MXWJVTOOROXGIU-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000005591 Pendimethalin Substances 0.000 claims description 12
- CHIFOSRWCNZCFN-UHFFFAOYSA-N pendimethalin Chemical group CCC(CC)NC1=C([N+]([O-])=O)C=C(C)C(C)=C1[N+]([O-])=O CHIFOSRWCNZCFN-UHFFFAOYSA-N 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
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- 239000000080 wetting agent Substances 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 6
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
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- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
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- 239000002671 adjuvant Substances 0.000 claims description 2
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- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 description 1
- 239000003448 gibberellin Substances 0.000 description 1
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- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Landscapes
- 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)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a plant growth inhibitor composition and application thereof. The plant growth inhibitor composition comprises the following raw materials in parts by weight: 10-40 parts of paclobutrazol, 2-10 parts of chlormequat chloride, 5-15 parts of aniline components and 10-30 parts of tri-nitrogen benzene components. The composition provided by the invention belongs to a broad-spectrum systemic conduction type plant growth inhibitor, can effectively inhibit the growth of weeds in non-cultivated land occasions and keep the weeds in a still fresh green and alive state, has the advantages of quick response, wide weed spectrum of action, certain sealing effect and long lasting period; the defect that the growth inhibition effect cannot be achieved by simply using the herbicide at a low concentration, and the weed withers and dies due to the high concentration, so that the greening landscape is affected is overcome, the technical defect in the field of weed growth inhibition in the existing non-cultivated land occasions is overcome, and the use selection of the non-cultivated land weed growth inhibitor is increased.
Description
Technical Field
The invention belongs to the technical field of plant growth regulation and control, and particularly relates to a plant growth inhibitor composition and application thereof.
Background
In non-cultivated land occasions such as railways, highways, electric power, photovoltaics, storage, factories and the like, compared with agricultural occasions, weeds are rarely interfered, so that the weeds are mixed and irrigated to be wantonly and tall, when the height and the density are up to a certain level, the production operation safety can be seriously influenced, and inconvenience is brought to daily maintenance work. For example, shielding railway signal lamps and highway warning signs, and threatening driving safety; blocking the photovoltaic panel from forming a 'hot spot effect', affecting the power generation efficiency; the electric power channel is occupied, and the maintenance workers are prevented from entering the site for maintenance construction and the like. In order to control the overgrowth of these weeds in these non-cultivated fields, there are two treatments currently in common use:
First, mowing manually or mechanically. The related field operation and maintenance departments organize a large amount of manpower and material resources for manual cutting and manual pulling or mowing by using a mower to control the weed growth every year, and the mode is effective at time, but takes labor and time, and is extremely strong in weed impurity irrigation growth capacity, so that the weed grows overly quickly; forming the situation that weeds are repeatedly started and living and staying in place. In summer with sufficient sunlight and abundant rainwater, and in addition, a large amount of unsealed weed seeds in the soil germinate, so that weeds can continue to grow fully after manual weeding, the weeds are more dense, the weeds can grow to tens of centimeters in a month, and the variety of the weeds can even reach more than one meter, so that the situation is a 'weed' is formed. And in non-cultivated land occasions with long mileage and wide area, such as railways, highways, photovoltaic power stations and the like, the manual mowing is not busy at all, the labor intensity of repeated mowers is high, the working efficiency is low, and the labor cost is higher.
And secondly, adopting herbicide to carry out chemical weeding (such as glyphosate and the like). In recent years, environmental departments and units pay more and more attention to the functions of water and soil protection, greening and conservation of green plants, and weeds are not hopefully killed thoroughly, so that the weeds wither and turn yellow or become a 'light plate ground' state. The herbicide is limited by the type and technology of the product and the drug resistance of weeds, so that the ideal prevention and control effect is often difficult to achieve; or the weeds and the branches wither and die thoroughly due to inaccurate application method or dosage. This puts a technical innovation requirement on the grass control work of the relevant departments.
The plant growth regulator relates to various components with different functions and different emphasis points, wherein some plant growth regulator components are used for promoting plant growth, such as gibberellin, indoleacetic acid and the like, and some plant growth regulator components are used for inhibiting and delaying plant growth, such as chlormequat chloride, ethephon, thidiazuron and the like, namely the components of plant growth inhibitors mentioned by us, but among the growth inhibition components, ethephon is used for promoting fruit ripening, thidiazuron is used for easily defoliating plants, the emphasis points are different, and other plant growth inhibitor components such as cinnamic acid, coumarin and the like belong to natural plant extraction, so that the cost and effect are not advantageous. Even though the chlormequat chloride and other inhibitors with relatively good comprehensive inhibition effect are mainly prepared from single-component preparations on the market, the single-component preparations are difficult to achieve ideal inhibition effect when applied to non-cultivated land. At present, plant growth inhibitors are widely applied to farm crops, garden green plants and the like, mainly comprise single component preparations (such as chlormequat chloride, mepiquat chloride, ethephon and the like), and have a small quantity of binary compound component preparations which are mainly used for inhibiting overgrowth of crops, regulating vegetative growth and reproductive growth, increasing crop yield and the like, and have not been applied to non-cultivated land occasions such as railways, highways, photovoltaic power and the like as weed growth inhibition. The non-cultivated land weed grass is complex, and grass weeds, broadleaf weeds, sedge weeds and other weeds are mixed in irrigation, so that the problem of excessive growth of the non-cultivated land weeds can not be completely solved by using a single plant growth inhibitor like agriculture, and the defect and the limitation of one aspect can be shown.
Therefore, development of a plant growth inhibitor capable of effectively inhibiting the growth of various weeds in the above-mentioned fields and maintaining the fresh green survival state thereof and application thereof are particularly urgent.
Disclosure of Invention
The invention aims to provide an inhibitor which is suitable for inhibiting plant growth in non-cultivated land occasions; it is another object of the present invention to provide a combination of plant growth inhibitors for use in inhibiting weed growth in non-cultivated land applications.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A plant growth inhibitor composition comprising the following raw materials in parts by weight: 10-40 parts of paclobutrazol, 2-10 parts of chlormequat chloride, 5-15 parts of aniline components and 10-30 parts of tri-nitrogen benzene components.
In the plant growth inhibitor composition as described above, preferably, the paclobutrazol is 25 parts, the chlormequat is 5 parts, the aniline component is 10 parts, and the trinitrobenzene component is 20 parts.
In the plant growth inhibitor composition as described above, preferably, the aniline component is pendimethalin and the triazene component is atrazine.
In the practical use process, the components are not limited to be applied in the form of a compound composition, and can be applied sequentially or mixed in a barrel due to the application condition or more convenient condition, so long as the effective components can be applied to the land to be treated, the effect can be achieved, and preferably, the simultaneous application effect of the components is better.
A plant growth inhibitor as described above, preferably, is prepared in one method of use as follows:
1) Weighing inhibitor component raw materials according to the dosage of each raw material component;
2) Pulverizing the above inhibitor materials into fine powder, and sieving;
3) Adding water into the fine powder obtained in the step 2), and fully stirring to form a uniform milky suspension, wherein the water is deionized water.
A plant growth inhibitor composition as described above, preferably in use, is prepared as follows:
(1) Weighing the raw materials of the inhibitor component according to the dosage of each component;
(2) The components of the inhibitor raw materials are finely ground into fine powder by adopting a micro-diameter grinding technology, sieved, and added with an acceptable auxiliary agent in the pesticide processing field to prepare any acceptable formulation in the market, such as water aqua, aqueous emulsion, suspending agent, wettable powder, water dispersible granule and the like. Among them, suspending agents are preferable.
Plant growth inhibitor compositions as described above, preferably, acceptable adjuvants include, but are not limited to: wetting agent, dispersing agent, thickener, defoamer, antifreezing agent, stabilizer, water, etc.
Preferably, the acceptable auxiliary agent and the total weight of the composition are 1-10 parts of wetting agent, 0.5-5 parts of dispersing agent, 0.1-3 parts of thickening agent, 0.1-3 parts of defoamer, 1-6 parts of antifreezing agent, 0.1-2 parts of stabilizer and the balance of water which are added to 100 parts.
The plant growth inhibitor composition as described above, preferably, the wetting agent is a mixture of any one or more of alkyl naphthalene sulfonate, fatty alcohol sulfate, sulfonate, fatty alcohol polyoxyethylene ether, alcohol ether phosphate and spina gleditsiae powder in any proportion;
the dispersing agent is one or a mixture of a plurality of polycarboxylate, lignosulfonate, alkyl naphthalene sulfonate, polyoxyethylene polyoxypropylene ether block copolymer, pull-open branch BX and the like in any proportion;
the thickener is one or a mixture of a plurality of materials with any proportion from acacia, xanthan gum, magnesium aluminum silicate, sodium polyacrylate and white carbon black;
the defoaming agent is one or a mixture of a plurality of tributyl phosphate, high-carbon alcohol, polyoxyethylene polyoxypropylene alcohol amine ether, dimethyl silicone oil and polyether modified organic silicon in any proportion;
The antifreezing agent is one or a mixture of more of ethylene glycol, propylene glycol, glycerol, sorbitol, urea, sodium chloride and polyethylene glycol in any proportion;
The stabilizer is one or a mixture of more of citric acid, oxalic acid, dodecylbenzene sulfonic acid, triethanolamine, sodium carbonate and sodium bicarbonate in any proportion;
The water is deionized water.
The plant growth inhibitor composition is applied to inhibiting weed growth in non-cultivated land. When in use, the method is carried out according to the dosage of 100 g/mu, and the water is added for diluting 300-600 times, and the spray application is carried out on the area to be treated.
The invention has the beneficial effects that:
the plant growth inhibitor provided by the invention belongs to a broad-spectrum systemic conduction type plant growth inhibitor, can effectively inhibit the growth of weeds in non-cultivated land sites and keep the weeds in a still fresh green and alive state, and has the advantages of rapid effect, wide weed spectrum, certain sealing effect and long lasting period. The herbicide can be used as an ideal non-cultivated land weed growth inhibitor, overcomes the defects that the herbicide cannot inhibit the growth effect when the herbicide is simply used at a low concentration, the weed is withered and dead when the herbicide is at a high concentration, the greening landscape is affected, the single-component plant growth inhibitor is easy to cause the weed resistance, and the herbicide does not have any sealing effect, overcomes the technical defects in the field of weed growth inhibition in the existing non-cultivated land occasions, and increases the use selection of the non-cultivated land weed growth inhibitor.
Compared with the prior art, the invention has the following beneficial effects:
(1) The plant growth inhibitor composition has obvious synergistic effect of the components combined within a certain proportion range, effectively reduces the drug resistance problem of common single-component preparations such as chlormequat chloride, mepiquat chloride and the like which are singly used, obviously improves the weed inhibition effect compared with a single preparation, can obtain excellent inhibition effect with less dosage, and reduces the medication cost.
(2) The combination of plant growth inhibitors such as paclobutrazol and chlormequat chloride and low-toxicity herbicides such as pendimethalin and atrazine with the efficacy of plant growth regulators under proper low concentration forms the characteristics of both a stem and leaf treating agent and a soil treating agent, can inhibit growth of the unearthed weeds and can seal part of ungerminated weed seeds, thereby realizing a more comprehensive prevention, control and inhibition target, and experiments show that: the formula has obvious prevention and control inhibition effect on tall weeds represented by the broom grass, so that the whole grass becomes dwarf and sparse.
(3) The spectrum range of inhibiting weeds is expanded, the problem of excessive growth of most weeds can be solved by one-time application, the defects and limitations of single-dose application are overcome, and the unexpected discovery has an effective growth inhibition effect on hybrid shrubs such as elms, paper mulberry and the like which are difficult to have an inhibition effect on a conventional single dose.
(4) By using the invention, the weed growth inhibition rates of 7 days and 90 days after the application are obviously improved, the drug effect is rapidly exerted, the effective period is shortened, and the lasting period is prolonged. More time and labor are saved, and the economic benefit is improved.
Detailed Description
Based on the principle of pesticide compounding technology, the invention refers to the application effects of different plant growth regulator components, and according to the principle of complementation of effects, the plant growth regulator components chlormequat chloride and paclobutrazol with plant growth inhibition effect and the herbicide effect under high concentration are selected and processed into the plant growth inhibition composition through reasonable concentration proportioning combination and specific process after a great deal of theoretical and experimental practice experience and combined with comprehensive factors such as functions, effects and cost. The following examples serve to further illustrate the invention but are not to be construed as limiting the invention. Modifications and substitutions made to the invention without departing from the spirit and nature of the invention are intended to be within the scope of the invention.
Unless otherwise indicated, all technical means used in the examples are conventional means well known to those skilled in the art, and unless otherwise specified, all reagents used in the present invention are of analytical purity or above.
Examples 1 to 9
The method is characterized in that resistant weeds in non-cultivated land occasions are selected to be mainly mugwort, broom grass, goosegrass, barnyard grass, hybrid shrub elms, paper mulberry trees and the like which are difficult to inhibit by conventional inhibitors, the test time and the spring are tested, the test places are non-cultivated land occasions (specific orientations: east longitude 39 DEG 57'8.27, north latitude 116 DEG 14'24.56 and empty land near altitude 53.09 m) on the west section of railways and power transmission and transformation lines of the four-season green and arid river in the sea lake area of Beijing city, and the growth inhibition effect of the compositions of paclobutrazol, chlormequat, atrazine and the single compositions of the components of the comparative examples in different parts by weight are studied.
The plant growth inhibitor composition containing the active ingredients of chlormequat chloride, paclobutrazol, pendimethalin and atrazine is used as an embodiment of the invention, and the proportion of the active ingredients is different; the comparative example adopts a single component preparation which respectively and independently contains one of four effective components of chlormequat chloride, paclobutrazol, pendimethalin, atrazine and the like.
The method for preparing the plant growth inhibitor comprises the following steps: ① Weighing raw materials of each effective component according to the dosage of each component; ② Pulverizing the above raw materials of effective components, grinding into fine powder, and sieving (with mesh not less than 900 mesh); ③ Adding an auxiliary agent and water into the fine powder in the step ②, continuously supplementing water to 100 parts of the total weight, and fully stirring to form a uniform milky suspension, wherein the water is deionized water. In step ②, a micro-diameter grinding technology can be adopted, an auxiliary agent acceptable in the pesticide processing field is added, and any acceptable formulation in the market can be prepared by adopting a traditional technology process, such as water aqua, aqueous emulsion, suspending agent, suspending emulsion, wettable powder, water dispersible granule and the like. Preferably, the suspending agent can be prepared by adding one or more auxiliary agents selected from wetting agents, dispersing agents, thickening agents, defoamers, antifreezing agents, stabilizers, water and the like. Specifically, 3 parts of fatty alcohol polyoxyethylene ether (wetting agent), 2 parts of sodium lignin sulfonate (dispersing agent), 0.5 part of xanthan gum (thickening agent), 0.2 part of simethicone (defoamer), 5 parts of polyethylene glycol (antifreezing agent) and 1 part of dodecylbenzene sulfonic acid (stabilizing agent) are taken as examples of the added auxiliary agents, and deionized water is added to 100 parts of the total weight (wherein, only the auxiliary agents and 100 parts of the total weight are taken as blank control without adding any effective components).
Examples 1-9 and comparative examples 1-4 were configured and tested as per the ingredients in Table 1, each treatment was repeated 4 times with 25m 2 samples per cell, and a random block arrangement. Except for the different inhibitor component ratios applied according to the above protocol, the other conditions for each treatment zone were exactly the same. The application mode is shoulder-mounted spray can spraying, the dosage of the preparation is 3.75g (100 g/mu) per 25m 2, and the preparation is diluted 400 times by water when in use and sprayed to the area to be treated. On days 7, 45 and 90 after the application of the spray of the plant growth inhibitor, observation and measurement are carried out in three times, scale measurement record is carried out on the weed plant heights of the treatment area and the blank control area, 5 points of each area are randomly sampled during investigation, the area of the sample is 0.25m 2, and the corresponding weed inhibition effect is shown in Table 2 in detail.
Table 1: the specific components in the embodiment comprise the following components in parts by weight
Table 2: statistical table of weed growth inhibition effect of each component
The weed suppression effect in table 2 above was statistically calculated according to the weed plant height suppression rate in the sample, and the average value was repeatedly taken for each group. Plant height inhibition = (weed plant height in blank control area-weed plant height in treated area)/weed plant height in blank control area x 100%.
As can be seen from table 2 above: it was found by comparing examples 1 to 9 that the comprehensive inhibition effect of example 5 was optimal, and the content ratio of each component of example 5 was an optimal combination.
The plant height inhibition rates of comparative examples 1 to 9 and comparative examples 1 to 4 show that the weeding rates of the compound agents adopting the corresponding components are obviously improved and the synergistic effect is shown compared with each single agent. The inventor has unexpectedly found that the weed spectrum inhibited after the combination is expanded, and the weed inhibitor not only effectively inhibits weeds such as broadleaf mugwort, broom grass, gramineae goosegrass, barnyard grass and the like, but also has obvious inhibition effect on the hybrid shrub elms and paper mulberry which are difficult to have obvious inhibition effect on each single dose.
As can be seen from the comparison of the observation effects of examples 1-3 and 7-9 in 7 days, the high content of the paclobutrazol and chlormequat chloride has a remarkable effect on improving the inhibition speed of the inhibitor on weeds; the results of 45 days and 90 days are observed that the effect of simply increasing the content of pendimethalin on inhibiting the height of the weed plant is not continuously and obviously increased on the premise that the atrazine component is not added, and the effect of simply increasing the content of atrazine on inhibiting the height of the weed plant is not continuously and obviously increased on the premise that the atrazine component is not added. The inhibition effect of mugwort and broom grass without atrazine and the inhibition effect of goosegrass and barnyard grass without pendimethalin are obviously reduced in the observation period of 90 days. Especially, the addition of atrazine as a triazene component further enhances the inhibition effect of the inhibitor on resistant weeds, and on-site observation shows that the grass phase is obviously sparser.
In addition, the inhibition effect conditions of the comparative examples 4 to 6 and other examples and comparative examples for 7 days and 90 days can be seen that the control effect of the plant growth inhibitor after the plant growth inhibitor is greatly improved on the 7 th day and the 90 th day after one-time application, which shows that the compound formula plant growth inhibitor has remarkable effects on improving the effect speed of the inhibitor and prolonging the lasting period of the inhibitor, thereby reducing the application times and saving manpower and material resources.
The fresh states of weed growth in each treatment group were counted, and the results are shown in Table 3.
Table 3: statistical table of the fresh and alive states of weed growth (whether dead phenomenon occurs or not) of each example
In addition, in the test observation period of table 3, the weeds in examples 1 to 9 and comparative examples 1 to 4 were in a fresh state, and in the test, it was found that the weeds withered or dead phenomenon (examples 3,4, 6, 9) occurred when the doses of atrazine and pendimethalin were too high, while the good inhibition effect (examples 1,2, 7, 8) could not be obtained when the doses of atrazine and pendimethalin were too low, and the weed growth inhibition rate of each component in table 2 was found, but the inhibition effect was not ideal when the weeds in examples 1,2, 7,8 and comparative examples 1 to 4 were also not shown. The dosage used in example 5 did not show the death of weeds, and the best synergistic effect with other components was achieved to achieve the best inhibition effect.
Example 10 (indoor biological Activity test)
In order to further verify whether the preferable compound plant growth inhibition composition and different mixed combinations thereof provided by the invention generate a synergistic effect in inhibiting the growth of non-cultivated land weeds, or a synergistic addition effect, four single agents, two combinations of the single agents, three combinations of the single agents, four single agent mixed combinations and the like are set as research objects, broadleaf weeds broom grass and grass weeds and goosegrass are selected as test targets, and an indoor biological activity test is set.
The specific test embodiment is as follows:
Treatment agent: weighing 0.2428g of 97% atrazine technical with an electronic balance (sensing amount is 0.1 mg), adding 10ml of acetone, fully dissolving, diluting to 500ml with 0.1% Tween-80 water solution, and preparing atrazine 300g.a.i./hm 2 solution; weighing 0.3099g of a 95% paclobutrazol original drug, adding 10ml of acetone for full dissolution, diluting with 0.1% tween-80 water solution to 500ml, and preparing into a paclobutrazol 375g.a.i./hm 2 solution; weighing 0.0601g of 98% chlormequat chloride raw material, adding 10ml of acetone, fully dissolving, diluting with 0.1% Tween-80 water solution, and fixing volume to 500ml to prepare 75g.a.i./hm 2 solution of chlormequat chloride; the 95% pendimethalin raw medicine 0.1239g is weighed, 10ml of acetone is added for full dissolution, and then tween-80 water solution with the volume ratio of 0.1% is used for diluting and fixing the volume to 500ml, so as to prepare the pendimethalin 150g.a.i./hm 2 solution (the dosage of the active ingredient is converted according to the dosage of the active ingredient used for spraying 2ml of medicament solution into the land area in a plastic pot with the diameter of 20 cm). The single-dose solution is used as a treatment group mother solution, a series of ratios are set according to the mixing purpose, and the following treatments (the blank control is not added with any effective components, namely, only 10ml of acetone is added, and the volume ratio of the Tween-80 aqueous solution with the volume ratio of 0.1% is used as the blank control treatment mother solution) are carried out, wherein each treatment is shown in the following table 4.
Table 4: dosage arrangement table of each treatment agent
The stem and leaf treatment method is adopted, non-cultivated land soil with neutral pH value and good permeability is taken, the soil is quantitatively filled into plastic bowls with the diameter of 20cm (about to 4/5), seed soaking and germination accelerating are respectively carried out on test target weed seeds (broom grass and goosegrass) which are derived from the non-cultivated land, and the seeds are sowed after the seeds are exposed to white. The pretreated weed seeds to be tested are uniformly and quantitatively sown into soil in a pot according to 10 grains per pot, covered with 0.5-1.0 cm of soil and then transferred into a greenhouse for cultivation. And (3) spraying stem and leaf until the weeds grow to 3-5 leaves, spraying 2ml of liquid medicine into each pot, repeating each treatment for 4 times, setting the solution treatment without active ingredients as blank control, and culturing the treated test materials in a greenhouse. And after treatment, regularly observing and recording the growth state of target weeds, describing the damage symptoms of the weeds, and recording the inhibition effect according to the investigation of a growth inhibition method 30 days after treatment, and weighing the fresh weight of overground parts of the weeds.
The data statistics method comprises the following steps:
the inhibition effect (fresh weight inhibition rate) of each treatment was calculated according to the investigation data in terms of percentage (%).
Reference absolute value method: inhibition effect E (%) = (fresh weed weight in control area-fresh weed weight in treatment area)/fresh weed weight in control area x 100%
Reference is made to the Colby method: taking A, B, C mixed medicines as an example, the theoretical fresh weight inhibition effect of the mixed medicines according to the proportion is calculated according to the formula: e 0 (%) =a+b+c+,.
Wherein A, B, C, N represent agent 1, agent 2, agent 3 respectively, the actual fresh weight inhibition effect of single agents such as the agent N is the number of the mixed agent varieties. E-E 0 >10% is synergistic; E-E 0 < -10% is antagonism; E-E 0 values of.+ -. 10% are additive. The treatment results are shown in Table 5 below.
TABLE 5 fresh weight inhibition effect data statistics table
From the statistical results in table 5, it is known that the E-E 0 (%) values of the four components of atrazine, paclobutrazol, chlormequat chloride and pendimethalin (treatment 15) are all more than 10% for the fresh weight inhibition effect of the broad-leaf broom grass and the gramineous goosegrass, which shows that the four components have obvious synergistic effect compared with the single agent. Ten groups of composition treatments (treatments 5-14) of two or three of the four components are mutually compounded: for broom, eight groups of the broom exhibit addition, only two groups (treatment 7, treatment 13) exhibit synergy, but the E-E 0 values (%) are significantly smaller than the corresponding four-component compounding treatments; for nigella sativa, seven of them showed additive effects, and only three groups (treatment 6, treatment 7, treatment 13) showed synergistic effects, but the E-E 0 value (%) was also significantly smaller than the corresponding four-component complex treatments. The synergistic effect of the four components is obviously better than that of two or three components (binary and ternary compounding).
Claims (7)
1. A plant growth inhibitor composition for use in non-cultivated land applications, comprising the following active ingredients: 25 parts of paclobutrazol, 5 parts of chlormequat chloride, 10 parts of aniline components and 20 parts of tri-nitrogen benzene components;
The aniline component is pendimethalin, and the trinitrobenzene component is atrazine.
2. The plant growth inhibitor composition for use in non-cultivated land applications according to claim 1, wherein the method of preparation is as follows:
1) Weighing raw materials of inhibitor components according to the dosage of each component;
2) Pulverizing the above inhibitor materials into fine powder, and sieving;
3) Adding water into the fine powder obtained in the step 2), and fully stirring to form a uniform suspension.
3. The plant growth inhibitor composition for use in non-cultivated land applications according to claim 1, wherein the method of preparation is as follows:
(1) Weighing raw materials of inhibitor components according to the dosage of each component;
(2) The components of the inhibitor raw materials are finely ground into fine powder by adopting a micro-diameter grinding technology, and then the fine powder is sieved, and auxiliary agents acceptable in the pesticide processing field are added to prepare aqueous emulsion, suspending agent, wettable powder or water dispersible granule.
4. A plant growth inhibitor composition for use in non-cultivated land applications according to claim 3, wherein the acceptable adjuvant is one or more of wetting agents, dispersing agents, thickening agents, defoamers, anti-freeze agents, stabilizers and water.
5. The plant growth inhibitor composition for non-cultivated land according to claim 4, wherein the acceptable auxiliary agent and the water content thereof are 1 to 10 parts of wetting agent, 0.5 to 5 parts of dispersing agent, 0.1 to 3 parts of thickening agent, 0.1 to 3 parts of defoaming agent, 1 to 6 parts of antifreezing agent, 0.1 to 2 parts of stabilizing agent, and the balance water to 100 parts.
6. The plant growth inhibitor composition for use in non-cultivated land applications according to claim 4, wherein the wetting agent is a mixture of any one or more of alkyl naphthalene sulfonate, fatty alcohol sulfate, sulfonate, fatty alcohol polyoxyethylene ether, alcohol ether phosphate, and powdered soap;
The dispersing agent is one or a mixture of more of polycarboxylate, lignosulfonate, alkyl naphthalene sulfonate, polyoxyethylene polyoxypropylene ether block copolymer and pull-open branch BX;
The thickener is one or more of acacia, xanthan gum, magnesium aluminum silicate, sodium polyacrylate and white carbon black;
The defoaming agent is one or a mixture of tributyl phosphate, higher alcohol, polyoxyethylene polyoxypropylene alcohol amine ether, simethicone and polyether modified organic silicon;
The antifreezing agent is one or a mixture of more of ethylene glycol, propylene glycol, glycerol, sorbitol, urea, sodium chloride and polyethylene glycol;
the stabilizer is one or more of citric acid, oxalic acid, dodecylbenzene sulfonic acid, triethanolamine, sodium carbonate and sodium bicarbonate;
The water is deionized water.
7. Use of a plant growth inhibitor composition for use in non-cultivated land applications according to any one of claims 1 to 6 as a herbicide for non-cultivated land applications.
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