48 results about "Growth Agents" patented technology

The invention relates to a method for growing multi-layer and single-layer tungsten telluride films by a normal-pressure chemical vapor deposition method. According to the method, tellurium powder and tungsten trioxide serve as precursors, potassium bromide is added to serve as an auxiliary growth agent, tungsten trioxide generates a precursor with higher volatility under the action of potassium bromide, and the problem that the temperature needed by tungsten trioxide is high is solved; the preparation method comprises the following steps: preparing a tellurium source and a tungsten source, respectively controlling the growth temperature and time of the tellurium source and the tungsten source through a double-temperature-zone tubular furnace, taking a Si / SiO2 substrate and hydrogen-argon mixed gas as carrier gas, and adjusting the distance between precursors, the growth temperature, the proportion of the precursors and the like to realize controllable preparation of the thickness and the shape of the tungsten ditelluride film. The tungsten telluride thin film grown by the method has excellent uniformity and larger size, the maximum size of a single layer can reach 0.01 cm < 2 >, and the method has an important positive effect on subsequent basic physical property research and preparation of high-performance electronic devices.

The invention provides a truffle mycorrhizal seedling cultivation method, and relates to the technical field of plant cultivation. The truffle mycorrhizal seedling cultivation method mainly comprises the following steps: culturing a host seedling, sterilizing truffles, mixing the sterilized truffles with a nutritional agent prepared from anthocyanin and folic acid, pulping together to prepare a suspension, mixing the suspension with a growth agent prepared from indoleacetic acid and tea saponin to prepare a microbial inoculum, inoculating the host seedling with the microbial inoculum, and carrying out seedling hardening cultivation. The method overcomes the defects in the prior art, effectively shortens the mycorrhiza formation time, promotes the growth of mycorrhiza seedlings, ensures the survival rate of subsequent commercial seedling transplantation, comprehensively reduces the cultivation loss, and improves the economic benefits.

To provide a promoter for proliferation of nitrate-reducing bacteria in the oral cavity, which enables selective proliferation of nitrate-reducing bacteria in the oral cavity.SOLUTION: A promoter for proliferation of nitrate-reducing bacteria in the oral cavity comprises one or more selected from the group consisting of glycyrrhetinic acid, glycyrrhizic acid, and salts thereof. Preferably, the nitrate-reducing bacteria to be proliferated include one or more species selected from the group consisting of bacteria of the genus Neisseria and bacteria of the genus Haemophilus. The promoter further comprises a nitrate ion-supplying compound. The promoter serves as an agent for preventing or improving dental caries or an agent for periodontal disease.SELECTED DRAWING: None

This invention discloses an AIoT-based containerized modular intelligent sprout cultivation device. The device collects environmental data in real time through multiple sensors deployed within the container, which is then uploaded to the platform layer via an edge computing gateway. The platform layer uses an LSTM predictive control module to analyze the data, predict environmental trends, and generate optimized environmental control and growth agent dispensing strategies, which are then sent to the edge gateway to drive actuators. Simultaneously, an intelligent circulating water system integrates multi-stage treatment and recycling devices to achieve efficient water resource recycling. This invention solves the problems of lagging environmental control, low resource utilization efficiency, and poor coordination among subsystems in existing plant factory systems through integrated closed-loop intelligent regulation of sensing, prediction, and control, achieving precise and automated management of the entire plant growth cycle.

The invention belongs to the technical field of agricultural planting, and particularly relates to a corn high-yield lodging-resistant cultivation method which comprises the following steps: performing soil detection on a regional plot, and preparing a soil treatment agent according to a soil detection result; applying a soil treatment agent, and deeply plowing the soil to 30 cm or above; applying base fertilizer to the regional plot, and deeply ploughing the soil again; selecting seeds, and soaking the seeds in a growth promoter; mechanical sowing is adopted, seeds are evenly distributed and consistent in depth, and after sowing, the seeds are covered with a layer of thin soil and slightly compacted; in a corn jointing stage and a large horn mouth stage, a growth promoter and irrigation water are mixed and then irrigated to the roots of corn seedlings; and uniformly spraying the growth promoter on the leaf surfaces of the corn. The defects in the prior art are overcome, soil is treated through the soil treating agent, seeds, soil and leaf surfaces are treated through the growth promoter, fertility of the soil and fertility in the corn production process are supplemented, the strength of corn roots and stalks is enhanced, and the yield and lodging resistance of corn are improved.

The invention provides a preparation method of a multifunctional plant growth promoter, which comprises the following steps: S1, during use, preparing raw materials, mixing 0.5-5% by weight of oleamide and 0.1-0.5% by weight of erucyl amide, putting the mixture and 0.1-0.5% by weight of erucyl amide into a reaction kettle, and stirring; s2, after stirring, 0.4-2% by weight of tall oil is put into the reaction kettle to be stirred and continuously mixed; step S3, after mixing, adding 0.5 to 2.1 percent by weight of oleic acid; s4, adding a mixture of 1-5% by weight of lauryl sodium sulfate and 0.1-3% by weight of tridecanol polyether into the reaction kettle, and continuously stirring; s5, continuously adding a mixture of 0.3-1.5% by weight of sodium gluconate and 0.5-3% by weight of xylitol into the reaction kettle, and testing the temperature of the mixed liquid in the reaction kettle; s6, when the temperature of the liquid in the reaction kettle is reduced to 32-37 DEG C, testing the pH value in the reaction kettle; according to the invention, the absorption performance of plant cells can be improved, and crops can be assisted to quickly absorb sunlight, various nutritional ingredients, drug performance and water retention performance.

To provide a novel hair growth agent that is applied topically to the scalp, thereby facilitating the transdermal absorption of both hair growth components and organic components, and demonstrates a hair growth-enhancing effect as well as a moisturizing effect to prevent hair loss, dandruff, and itching.MEANS FOR SOLVING THE PROBLEM: A hair growth agent according to the present invention contains 0.01 mass%-5 mass% of Aloe vera extract, 0.01 mass%-5 mass% of a hair growth component, and 1 mass%-60 mass% of alcohol, with the balance being water.SELECTED DRAWING: None

The application relates to a preparation method of ZSM-5 nanosheet zeolite and belongs to the technical field of catalyst preparation. The preparation method is used for synthesizing b-axis directional growth ZSM-5 molecular sieve under a seed guiding liquid in an acid medium and a fluorine-free system. The method comprises the following steps: mixing an aluminum source, inorganic acid, inorganic alkali, a silicon source and deionized water, fully stirring to form a gel, adding a small amount of seed guiding liquid, and adjusting the pH of the synthesis gel to be between 4 and 6 by controlling the adding amount of the inorganic acid. The b-axis directional growth ZSM-5 nanosheet is obtained by crystallization treatment at a certain temperature. The method is an inorganic system synthesis in a fluorine-free system, the silicon aluminum ratio is adjustable between 30 and 120, the system is green and environmentally friendly, the cost is low, the problems of high cost, limited silicon aluminum ratio and serious environmental pollution in the fluorine-containing system and the addition of organic growth agents for synthesizing directional growth nanosheets are solved.

The present invention discloses a sulfur particle growth agent for biogas complex iron wet desulfurization, which is composed of fatty alcohol polyoxyethylene ether, polyacrylamide, glycerol, and polysiloxane defoaming agent. The desulfurization treatment method using the above growth agent is as follows: the complex iron solution is mixed with the sulfur particle growth agent to obtain a desulfurization liquid, the desulfurization liquid is injected into the desulfurization liquid storage tank, the gas-liquid mixing pump is started to mix the desulfurization liquid and the biogas to be treated and inject them into the desulfurization chamber, the desulfurization liquid in the desulfurization chamber oxidizes the sulfur element contained in the biogas into sulfur element, and then aggregates the sulfur element to form sulfur particles, the desulfurization liquid containing sulfur particles is filtered through a filter, the desulfurization liquid is refluxed to the desulfurization liquid storage tank, the sulfur particles are collected in the filter, and the biogas after desulfurization is discharged from the exhaust pipe to the desulfurization tank. The present invention can improve the shortcomings of the prior art, rapidly increase the sulfur particles and filter them out.

The invention belongs to the field of poa coccinea seed peel loosening, and particularly discloses a special peel loosening device for rapid germination of poa coccinea seeds in a high-cold region, which comprises a stable rack, a vibration peel loosening generating device, a lossless reciprocating friction peel loosening device and a leveraging type spraying device. According to the contradictory characteristic that when the poa coccinea seeds are subjected to peel loosening, friction needs to be carried out (the poa coccinea seeds are subjected to peel loosening), and friction cannot be carried out (embryos in the poa coccinea are prevented from being damaged), the technical effect that the poa coccinea seeds are subjected to lossless and efficient peel loosening is achieved by adopting a mode of combining flexible contact and hard peel loosening; and through the arrangement of the force-borrowing type spraying device, the technical effect of spraying a growth agent to the bluegrass seeds is achieved only by means of the rotating force generated when the barks of the bluegrass seeds are loosened, and the germination rate of the bluegrass seeds is further increased.

The invention relates to the technical field of pleione bulbocodioides planting, in particular to a pleione bulbocodioides seedling rapid propagation method. The pleione bulbocodioides seedling rapid propagation method comprises the following steps: sowing pleione bulbocodioides seeds in a seed germination culture medium, and culturing to obtain pleione bulbocodioides rootless seedlings, wherein the germination culture medium contains a seed germination agent for promoting the germination of the pleione bulbocodioides seeds; the pleione bulbocodioides rootless seedlings are transferred to a large corm culture medium to be cultured into pleione bulbocodioides rooted seedlings with pleione bulbocodioides corms larger than 5-9 mm, and the large corm culture medium contains a corm growth agent for promoting pleione bulbocodioides corm development. Therefore, the problem of long cultivation period of the bulbocodioides bulbocodioides bulb is solved.

The invention relates to the technical field of microorganisms, in particular to bacillus velezensis GS33 and application thereof. The fermentation supernatant of the bacillus laicisii GS33 has broad-spectrum antibacterial activity on common food-borne pathogenic bacteria and plant fungi, can generate a large number of bacteriostatic active substances after fermentation optimization, can be further developed as a probiotic agent, a growth promoting agent or an antibacterial agent, can promote animal growth or prevent diseases after being added into feed, and has a good application prospect. Therefore, the use of antibiotics can be reduced to a certain extent, and the application prospect is wide. According to the invention, the fermentation conditions of the bacillus velezensis GS33 for producing the bacteriostatic active substances are also optimized, and the bacteriostatic activity of the fermentation supernatant is improved by 30.14% through optimization of the fermentation conditions, so that the yield of the bacteriostatic active substances is effectively improved. A powerful tool is provided for solving the problems of drug resistance, drug residues, environmental pollution and the like caused by the application of antibiotics in livestock production.

The utility model discloses an agricultural planting growth promoter mixing and blending device which comprises a mixing tank assembly, the mixing tank assembly comprises a tank body, a feeding pipe, a discharging pipe and a supporting column, the feeding pipe is fixedly connected to the top end of the tank body, the discharging pipe is fixedly connected to the bottom end of the tank body, and the supporting column is fixedly connected to the bottom end of the tank body; the first dustproof cover is fixedly connected to the top end of the tank body, and a batching bin is formed in the top end of the first dustproof cover; the stirring assembly is arranged at the bottom of the inner side of the dustproof cover I and the inner side of the tank body; the dustproof cover II is fixedly connected to the bottom end of the tank body; the vibration blending assembly is arranged on the inner side of the second dustproof cover and the inner side of the tank body; the one-way valve assembly is arranged on the inner side of the stirring assembly. Compared with the prior art, the multi-directional stirring device has the advantages that horizontal stirring, vertical stirring and multi-directional stirring can be realized, and ingredient liquid can be gradually added into an agricultural planting growth promoter to be mixed.

The present invention concerns compounds and their use to treat cardiovascular disease, renal disease, thrombic disease, stroke, metabolic syndrome, cell proliferation, and ischemic cardiovascular disorders. Compounds of the present invention display significant potency as antagonists of 20-hydroxyeicosatetraenoic acid (20-HETE), and function as anti-hypertensive, anti-inflammatory, or anti-growth agents.

The invention relates to the technical field of biogas and organic fertilizer production, in particular to an anaerobic fermentation synergistic growth promoting agent preparation device and method.The method comprises the following steps that 1, caked raw materials in a solid raw material bin are smashed through a smashing machine, insoluble impurities of liquid raw materials are removed through a filter, and the liquid raw materials are dried; step 2, weighing the crushed solid raw materials through an electronic metering bin, and accurately metering the filtered liquid raw materials through a metering pump according to a formula, step 3, preparing deionized water through a pure water preparation unit, injecting the deionized water into a dissolving and chelating tank, and stirring to obtain the purified water. Step 2, feeding the solid raw material and the liquid raw material in the step 2 according to the sequence and the specified weight, and keeping stirring in the feeding process of the solid raw material and the liquid raw material, and step 4, stirring the solid raw material, the liquid raw material and deionized water for a period of time, adding a chelating agent, maintaining the temperature and controlling the stirring speed at the same time; the fermentation period is shortened, and the gas production rate is increased.

The invention provides application of rahnella maple XS-11 in the aspect of growth promotion of radix bupleuri, and belongs to the technical field of microorganisms. The invention provides rahnlaaceae XS-11, and the collection number of the rahnlaaceae XS-11 is CGMCC (China General Microbiological Culture Collection Center) No.35248. The rahnlaaceae XS-11 can be used for preparing a culture medium. In the invention, the bacterium rahnella malayi XS-11 is a growth-promoting bacterium screened from rhizosphere soil in a bupleurum chinense genuine producing area, the XS-11 strain has the capabilities of dissolving phosphorus, dissolving potassium and fixing nitrogen, can promote the growth of bupleurum chinense seedlings as a growth promoting agent, particularly has a remarkable effect of increasing the biomass of the root of a medicine part, and meanwhile, has a remarkable effect of promoting the growth of the bupleurum chinense seedlings. The growth-promoting bacterium can also significantly improve accumulation of saponin components at the root of radix bupleuri, can be used for artificial cultivation of radix bupleuri, provides a theoretical basis for increasing the yield and improving the quality of radix bupleuri, and has important guiding significance for reasonably utilizing biological agents to carry out ecological planting of medicinal plants.

The present invention provides an alumina powder for polishing and a preparation method thereof. The method includes: selecting an aluminum hydroxide raw material, adding it to hot pure water, and adding a growth agent to prepare a first slurry; adding a pH regulator to the first slurry, adjusting it to an acidic state, and grinding to obtain an aluminum hydroxide mother liquor; washing the aluminum hydroxide mother liquor with a ceramic membrane and concentrating it to obtain a second slurry; performing hydrothermal crystallization treatment on the second slurry, washing it with a ceramic membrane after treatment, and drying to obtain an alumina precursor; calcining the alumina precursor to obtain an alumina powder. This method has simple processes, is easy to control, and the obtained alumina powder has a flat plate-like structure, regular shape, few edges and corners, a flat surface, appropriate particle size and thickness dimensions, and is suitable for use as a fine polishing material for semiconductor wafers.

The invention belongs to the technical field of flower cultivation, and particularly relates to an intelligent irrigation method of an under-forest flower multi-element cultivation mode. A multi-element cultivation mode intelligent irrigation method for under-forest flowers comprises the following steps that roots are irrigated with a growth promoting agent once every day in the flower bud stage, soil is kept moist in other time periods, and the growth promoting agent is formed by mixing a fluorine azole activated ester solution and an oxyenadenine solution. According to the method, a growth promoting agent formed by mixing fluorine azole activated ester and oxyenadenine is irrigated in the multi-element cultivation process of under-forest flowers. Tests show that the growth promoting agent can promote elongation of Chinese rose pedicels and increase of the diameter of Chinese rose buds at a low concentration, and compared with a single component, the growth promoting agent has the advantages that the dosage of the agent can be reduced, the quality of cut Chinese rose flowers can be improved, and economic benefits can be increased.

The present invention is aimed for providing a novel peptide with a high drug efficacy and strong effect, a medicament or external preparation comprising it, specifically a prophylactic or therapeutic for dermatitis, rhinitis or alopecia, or a hair growth stimulant, a hair growing agent, an antipruritic or a skin-care product. The present invention achieved said aim by providing a cyclic peptide having an amino acid sequence expressed by the Formula I or a derivative thereof or a pharmaceutically acceptable salt thereof, wherein the amino acid sequence does not have a peptide bond that is not between the amino acids constituting the amino acid sequence.

In order to overcome the defects in the prior art and make up for the temperature and humidity influences caused by seasonal changes in common cuttage, the invention provides a device for rose cuttage breeding. Comprising a plant light supplementing lamp with lamp beads of at least two light sources, a rose cuttage box with a certain heat preservation function and a planting plate, and the three-dimensional planting frame is a vertical multi-layer metal frame capable of bearing loads. The planting and growing lamp is an LED hard lamp strip, is connected with the PLC electric box through an external constant-voltage power supply, a dimmer and a load device, and is used for controlling the light intensity and timing; the rose cutting box has a heat preservation function, and water, growth agents, sterilizing agents, nutrient solutions and the like can be supplied according to needs in an aerial fog spraying mode. The three-dimensional planting frame is divided into at least two layers, the upper end of each layer is provided with a lamp, the lower end bottom plate is provided with a cuttage box, and the two sides of the frame are provided with a water / liquid supply pipe and a water / liquid return pipe which are connected with a water / liquid barrel. And the PLC electric box is used for automatic control, so that a system device for rose cuttage breeding is formed.

The invention discloses a fruit tree grafting growth promoter, and relates to the technical field of fruit tree cultivation. The growth promoter is prepared from the following raw materials in parts by weight: 0.01 to 0.05 part of methyl jasmonate, 0.1 to 0.3 part of salicylic acid nano microcapsules, 2 to 5 parts of bacillus velezensis, 1 to 3 parts of trichoderma harzianum, 5 to 10 parts of mesoporous silica nanoparticles, 3 to 6 parts of zinc alginate compound, 5 to 8 parts of herba portulacae extract, 2 to 4 parts of ginkgo leaf nano extract, 1 to 2 parts of chitosan oligosaccharide, 2 to 4 parts of pullulan and 100 to 200 parts of plasma activated water. The growth promoter disclosed by the invention realizes innovation of an action mechanism, prolongs the action lasting period, breaks through the adaptability limitation of a grafting technology, successfully utilizes and optimizes the micro-ecology of a grafting interface, and is environment-friendly and high in safety.

The application provides a kind of cartilage polypeptide composition and its preparation method, the cartilage polypeptide 30-45%, auxiliary agent 10-25%, growth agent 3-8%, slow-release agent 2-9%, the balance is water, the application will cartilage polypeptide, auxiliary agent, growth agent and slow-release agent several ingredients scientific compatibility, preparation has the composition of protecting cartilage tissue, anti-inflammatory pain, effectively increase bone density effect, improve synovial tissue, there is no rebound ineffective condition after drug withdrawal.

The invention relates to the technical field of coatings, and discloses a high-weather-resistance water-based polyester dispersion and a preparation method thereof.The preparation method comprises the steps that dibasic acid, dihydric alcohol and a branched chain monomer are subjected to melt polycondensation reaction, and an obtained polyester prepolymer is subjected to organic amine neutralization to obtain a polyester melt; adding water into the polyester melt for emulsification, and adding an ether growth agent into the obtained dispersion emulsion for chain growth reaction to obtain a high-molecular-weight dispersion; carrying out in-situ hybridization treatment on the high-molecular-weight dispersion by adopting a silane precursor to form a covalent hybrid dispersion of which the surface is enriched with siloxane; constructing a synergistic weather-proof structure for the covalent hybrid dispersion to obtain a polyester dispersion; according to the invention, the corrosion of ultraviolet light, moisture and oxygen is effectively blocked, so that the coating has excellent weather resistance, water resistance, chemical resistance and long-term appearance retention capability, the risks of yellowing, pulverization and gloss loss are obviously reduced, and the comprehensive weather resistance is greatly improved.

The invention provides a high-yield planting method for pepper, belonging to the technical field of pepper planting; the method comprises preparing a growth promoter, raising seedlings, planting and post-planting management; the preparation of the growth promoter comprises chitosan sulfonation, modified vermiculite and compounding; the modified vermiculite comprises placing the vermiculite in an ethanol solution, adding hexadecyltrimethylammonium bromide, sodium alginate and dodecyldimethylamine oxide to stir, after stirring evenly, filtering, washing and drying, placing the vermiculite in a microwave device to carry out microwave treatment, after the microwave ends, obtaining dispersed expanded vermiculite; placing the dispersed expanded vermiculite in toluene, adding N-aminoethyl-3-aminopropyltriethoxysilane, stirring evenly, raising the temperature to 72-77 DEG C, continuing stirring for 6.3-6.8h, filtering, washing and drying after the stirring ends, obtaining the modified vermiculite; the planting method of the invention has high pepper yield, good quality, low charcoal maggot disease incidence rate and low fruit drop rate.

This invention provides a Pseudomonas spp. bacterial composition, a compound bacterial agent, and their applications, belonging to the field of microbial technology. This invention provides a Pseudomonas spp. bacterial composition, comprising Pseudomonas spp. bacteria (… Pseudomonas arcuscaelestis JF1 and ( Pseudomonas hutmensis JF2 and JF2 are growth-promoting bacteria screened from the rhizosphere soil of Corydalis yanhusuo. Pseudomonas bacteria JF1 and JF2 have the ability to solubilize phosphorus and produce iron carriers. As growth promoters, they can be used synergistically to promote the growth of Corydalis yanhusuo seedlings. In particular, they have a significant effect on promoting the accumulation of total alkaloids in Corydalis yanhusuo tubers. They can be used in the artificial cultivation of Corydalis yanhusuo, providing a theoretical basis for improving the yield and quality of Corydalis yanhusuo. They have important guiding significance for the rational and effective use of microorganisms to improve the quality and yield of "Qin medicine"—Corydalis yanhusuo.

The utility model discloses an agricultural planting growth promoter mixing and blending device, and relates to the technical field of mixing and blending. The mixing and blending device comprises a bottom plate, two mixing and blending boxes are arranged above the bottom plate, a driving component for driving the mixing and blending boxes to move is arranged on the bottom plate, an overturning and mixing component for driving the mixing and blending boxes to rotate and overturn is arranged on the bottom plate, and a supporting component for supporting the mixing and blending boxes is arranged at the top end of the bottom plate. The mixing and blending box can be limited through the first touch sensor and the second touch sensor, so that when the driving component and the turnover mixing component are used for driving the mixing and blending box to rotate and move, after growth agents are uniformly mixed, the discharging pipe can be moved to the position under the mixing and blending box, and the growth agents are uniformly mixed. Therefore, the mixed growth promoter can be conveniently discharged, the position of the discharge pipe does not need to be adjusted by wasting time during use, and the mixing and blending efficiency of the growth promoter for agricultural planting is improved.

This invention relates to a bio-based environmentally friendly fabric made from corn stalks and its preparation method. The preparation method includes the following steps: S1: injecting a growth agent into the vascular bundles of the corn stalks during their growth process to thicken the vascular bundle walls; S2: injecting a toughening agent into the vascular bundles when the corn stalks stop growing to enhance their toughness; S3: separating the vascular bundles from the corn stalks; S4: using the vascular bundles in the corn stalks for weaving to obtain the bio-based fabric. This invention induces the modification of the vascular bundle structure of corn stalks, altering their physical properties. The treated vascular bundle structure is used to make the fabric base layer, which is then laminated with a waterproof and breathable membrane to obtain an environmentally friendly fabric that is easily degradable and has waterproof, breathable, lightweight, and resilient properties. This reduces the use of petroleum and the emission of pollutants, and also treats the corn stalks, contributing to environmental protection.

The invention discloses an anti-hair loss hair-growing agent extracting solution and a production process thereof. The extracting solution is composed of water, propylene glycol, various plant extracts, ethylhexylglycerin, phenoxyethanol and the like, all the components have a synergistic effect, and the extracting solution can promote scalp blood circulation, improve the scalp environment and nourish hair follicles, so that alopecia is reduced, and hair growth is promoted. The production process comprises the steps of picking, soaking, extraction, filtration, solvent recovery, refined filtration, auxiliary material addition, sterilization, filling and the like, the process is simple and convenient to operate, effective components in plants can be effectively extracted, and the quality and effect of products are guaranteed.

The present invention provides a truffle mycorrhizal seedling cultivation method, and relates to the technical field of plant cultivation. The truffle mycorrhizal seedling cultivation method mainly comprises the following steps: culturing host seedlings, slurrying together truffles with anthocyanins and folic acid-mixed nutrient agents to prepare a suspension, mixing the suspension with indoleacetic acid and a growth agent with tea saponin to prepare a bacterial agent, and inoculating the host seedlings with the bacterial agent to perform seedling hardening and cultivation. The present invention overcomes the shortcomings of the prior art, effectively shortens the formation time of mycorrhizae, promotes the growth of mycorrhizal seedlings, ensures the survival rate of subsequent commercial seedling transplanting, comprehensively reduces the loss of cultivation, and improves economic benefits.

The invention relates to the technical field of agricultural production, and discloses a preparation method and application of a rhizosphere nutrient enrichment and signal induction growth promoter. The method comprises the following steps: chelating and concentrating potassium nitrate, monopotassium phosphate and the like with an EDTA-citric acid chelating agent under an alkaline condition; trace elements are chelated by amino acid, modified by polyglutamic acid and emulsified into a nano suspension; the oligosaccharide and the cyclodextrin are included, the hormone and the calcium alginate are embedded, and the PLGA coating is performed to form a three-layer microcapsule; and adding the materials into a carboxymethyl chitosan solution for granulation, sequentially coating a rapidly disintegrating film, a pH sensitive film and a cellulase response film, and drying to obtain the growth promoter. The technical problems that a traditional growth promoter is low in nutrient utilization rate, short in signal action time and poor in compatibility stability are solved.