385 results about "Growth promotion" patented technology

The invention discloses a potassium fulvate chelated macroelement water-soluble fertilizer with stress resistance and growth promotion functions, and relates to the technical field of water-soluble fertilizers, the potassium fulvate chelated macroelement water-soluble fertilizer comprises the following raw materials by weight: 167-210 parts of mineral source potassium fulvate, 450-460 parts of potassium nitrate, 300-310 parts of urea, 150-160 parts of potassium dihydrogen phosphate, 30-40 parts of potassium sulfate, 15-25 parts of EDTA-disodium, and 5-15 parts of citric acid. 0.5 to 1.5 parts of brassinolide and 4 to 6 parts of polyaspartic acid; according to the potassium fulvate chelated macroelement water-soluble fertilizer with the stress-resistant and growth-promoting functions, through chelation cooperation of potassium fulvate and nitrogen, phosphorus and potassium, the solubility of the chelated phosphorus element in water is increased, and the chelated phosphorus element can be more uniformly distributed in soil; by adopting an EDTA-disodium and citric acid composite chelating system, volatilization and loss of nitrogen elements are reduced, the problem of precipitation of calcium, magnesium and phosphorus is solved, and the soil conditioner is suitable for hard water areas and especially has outstanding performance in saline-alkali soil and arid areas.

The invention relates to the technical field of microorganisms, and particularly discloses a saline-alkaline tolerant bacillus deserticola BW-13 with biocontrol and growth promoting functions and application thereof. The bacillus safensis BW-13 is preserved in the China Center for Type Culture Collection on January 13, 2025, the classification name of the bacillus safensis BW-13 is bacillus safeensis, and the preservation number of the bacillus safensis BW-13 is CCTCC NO: M 2025108. The strain BW-13 has relatively high salt tolerance, and still keeps good resistance under various stress conditions; meanwhile, the plant growth promoting agent has various plant growth promoting characteristics including nitrogen fixation, phosphorus solubilization and cellulase and protease secretion capacity, and pot experiment verifies that the plant growth promoting agent can improve the salt resistance of cucumber seedlings and promote plant growth; the strain has an antagonistic effect on a plurality of phytopathogens, and especially has a remarkable prevention and treatment effect on plant diseases such as apple ring spot, polygonatum kingianum anthracnose, pear tree rot and tomato gray mold caused by ascomycophyta pathogenic fungi.

The invention discloses a large factory cross-platform user drainage and growth promotion system based on artificial intelligence, and relates to the technical field of monitoring analysis, and the system comprises a data collection and processing module which is used for obtaining user cross-platform interaction behavior data, and generating a multi-platform user behavior feature vector set; the data mining module is used for performing cross-platform user identity identification code matching processing on the multi-platform user behavior feature vector set to generate a user cross-platform behavior feature map; the promotion strategy generation module is used for constructing a dynamic diversion strategy generation matrix according to the user cross-platform behavior characteristic spectrum and generating a user cross-platform diversion promotion strategy; and the optimization module is used for acquiring the real-time user feedback data flow, constructing a flow guide strategy dynamic correction model based on the real-time user feedback data flow, optimizing the cross-platform flow guide promotion strategy of the user, and deploying the cross-platform flow guide promotion strategy to a target platform to execute user growth operation.

The invention belongs to the field of biological agents, and particularly relates to bacillus siamensis and application thereof in the aspects of plant disease control, growth promoting and yield increasing. The bacillus siamensis XNC-3 provided by the invention is wide in antibacterial spectrum, can effectively inhibit various plant pathogenic fungi including phytophthora parasitica var nicotianae, has broad-spectrum antibacterial activity, and can be used for preventing and treating plant diseases, especially tobacco diseases. The bacillus siamensis has a promoting effect on tobacco seedling growth and seed germination, has growth-promoting and yield-increasing effects on tobacco, can remarkably increase the tobacco yield and improve the tobacco quality, is safe to the environment and has a very good application prospect.

The invention discloses a preparation process of high-efficiency absorption fish protein peptide and application of the high-efficiency absorption fish protein peptide in fertilizer, and belongs to the technical field of marine organisms. The aquatic product protein is directly used as a fermentation raw material, and the content of amino acid in the fish protein biological peptide is remarkably increased by utilizing the synergistic fermentation effect of microorganisms and assisted by biological enzymolysis, so that the absorptivity of the fish protein peptide is increased; the prepared fish protein peptide is used in the fertilizer to prepare the fish protein peptide functional fertilizer, the nutritional value and the utilization rate of the fertilizer are remarkably improved, and the fish protein peptide functional fertilizer has the remarkable effects of growth promotion, disease resistance, stress resistance and the like. According to the method, a conventional fish protein peptide preparation method of firstly preparing fermentation enzyme liquid and then performing biological enzymolysis is abandoned, the efficient absorption fish protein peptide is prepared by adopting a process of directly fermenting aquatic protein, a fermentation process and an enzymolysis process are integrated, and compared with a conventional process, the method has the advantages of simple production process, low production cost and the like; the method has significant effects and meanings for promoting green preparation of the fish protein peptide and efficient application of the fish protein peptide in fertilizers.

The invention relates to the technical field of saline-alkali soil treatment, and discloses a light and moderate saline-alkali soil alfalfa seedling protection and strong growth promotion planting method which comprises the following steps: S1, soil pretreatment and root zone microenvironment construction; s2, seed treatment and space-time double-salt-avoiding sowing; s3, microbial inoculum synergistic application; s4, water and fertilizer integration and accurate management; s5, dynamic regulation and control in the growth period, a low-salt root zone microenvironment is constructed through combination of physical obstruction and biological improvement, salt ascending is inhibited by using a slag salt isolation layer, fertility is improved by using an organic layer, and stress resistance is enhanced by adopting a salt-tolerant variety, climate window sowing and aerogel embedding fungicide; precise regulation and control are achieved through water and fertilizer integrated drip irrigation, the stability of a root zone is maintained by combining intertillage and directional topdressing, finally, the seedling emergence uniformity and the seedling stage survival rate are remarkably improved, and robust growth of plants in saline-alkali soil is promoted.

The invention discloses a microbial agent and application thereof in preventing and treating rice blast and promoting rice growth, active ingredients of the microbial agent are formed by compounding cold bacillus with the preservation number of CGMCC (China General Microbiological Culture Collection Center) NO: 33492 and bacillus velezensis with the preservation number of CGMCC NO: 33493, and the microbial agent aims at solving the synergistic problem of preventing and treating rice blast and promoting rice growth. According to the complex microbial inoculant, through the synergistic interaction between the two strains, the metabolite of the complex microbial inoculant can completely inhibit the spore germination of magnaporthe oryzae; meanwhile, the fungicide can degrade cellulose, obviously promote the growth of plant height, fresh weight and dry weight of rice, and realize the integration of disease prevention and growth promotion. The invention further discloses a preparation method of the fungicide and an application method of the fungicide for preventing and treating rice blast and promoting growth in a root irrigation mode in the three-leaf stage of rice. The microbial agent disclosed by the invention has dual functions of efficiently preventing diseases and stably promoting growth, and an efficient and safe biological solution is provided for green and sustainable development of agriculture.

The invention discloses a composition for improving the tolerance of plants to saline-alkali soil and application of the composition. The present invention relates to the field of microorganisms, and provides a composition, which contains a Botrytis cinerea strain 7466 (ACCC 34101), a Chaetomium globosum strain 7126 (ACCC 34102), and a Cladosporium halotolans strain 7309 (ACCC 34103), and a preparation method of the composition, the preparation method of the composition, and the preparation method of the composition, the composition provided by the invention can improve the salt and alkali tolerance of plants. The method is of great significance in saline-alkali soil restoration and improvement and growth promotion of crops such as soybeans.

The invention relates to the technical field of environmental microorganisms, in particular to arthrobacterium Arth.R8 and application thereof, and the preservation number of the arthrobacterium Arth.R8 is GDMCC No.63567. The arthrobacter Arth.R8 has the effects of fixing nitrogen, dissolving organic phosphorus, promoting growth and promoting nodulation. The arthrobacter Arth.R8 disclosed by the invention can be used for promoting absorption and utilization of nutrient substances such as nitrogen and phosphorus in a plant growth process, inhibiting growth of fusarium graminearum and promoting plant growth, and a new microbial strain resource is provided for realizing reduction and synergism of chemical fertilizers in agricultural production.

The invention belongs to the technical field of microorganisms and biological control, and particularly relates to paenibacillus polymyxa and application thereof in biocontrol and growth promotion. Specifically, a strain of paenibacillus polymyxa GLZ219 is obtained through screening, and experiments prove that the paenibacillus polymyxa GLZ219 has a relatively high bacteriostasis rate on pathogenic bacteria of tomato neck and root rot; meanwhile, the strain has a good antagonistic effect on nine common plant pathogens such as Rhizoctonia solani and the like, and can be widely applied to green prevention and control of various crop diseases. Besides, the paenibacillus polymyxa GLZ219 has nitrogen fixing and potassium dissolving capabilities, can secrete heteroauxin and siderophores, and can effectively promote the growth of tomato plants, the plant height of tomato seedlings treated by fermentation liquor of the paenibacillus polymyxa GLZ219 is remarkably increased, diseases can be prevented and controlled, the growth vigor of crops can be improved, the yield and quality of the crops can be improved, and the paenibacillus polymyxa GLZ219 has a wide application prospect.

The invention discloses plant probiotics with water retention, growth promotion and disease resistance effects and application thereof. The invention provides a complex microbial inoculant, which is prepared from the following active ingredients: 1) bacillus tequilensis Bac365 (GDMCC No: 65241), 2) microbacterium azadirachta Mic250 (GDMCC No: 65244), and 3) Enterococcus querebrasis Ent274 (GDMCC No: 65242) or Pseudomonas plecoglossa Pse350 (GDMCC No: 65243), and the active ingredients of the complex microbial inoculant are as follows: 1) bacillus tequilensis Bac365 (GDMCC No: 65243), 2) microbacterium azadirachta Mic250 (GDMCC No: 65244), and 3) the active ingredients of the complex microbial inoculant. The strain provided by the invention has good nitrogen fixation, phosphorus dissolution, IAA production, HA production and disease resistance, can effectively increase the utilization efficiency of water in drought soil, significantly promote plant growth and increase crop yield, and has good application prospects in the aspects of water retention and sand stabilization, agricultural production and the like.

The invention belongs to the technical field of agricultural biological control, and particularly relates to bacillus velezensis, a biological preparation and application of the bacillus velezensis in plant disease prevention and growth promotion. The bacillus velezensis is preserved in the China Center for Type Culture Collection, the preservation number of the bacillus velezensis is CCTCC NO: M 2025613, and the bacillus velezensis is classified and named as bacillus velezensis B54. Experiments show that the bacillus velezensis and the biological preparation thereof provided by the invention have broad-spectrum antagonistic activity, can effectively inhibit growth of pathogenic bacteria such as pythium spp and fusarium spp, induce plants to generate immune response, remarkably reduce the incidence rate of root rot and blight of the plants, can also generate plant growth stimulants, improve the development of plant root systems, improve the growth of the plant root systems and promote the growth of the plant root systems. The crop yield and quality are improved.

The invention discloses an intelligent cooperative regulation and control method and system for dissolved oxygen in a haematococcus culture solution, relates to the field of bioengineering, and controls a decision-making layer to dynamically switch between a growth promotion regulation and control mode and a stress induction regulation and control mode based on biomass data and physiological status data in a haematococcus culture stage so as to realize cooperative regulation and control of dissolved oxygen, illumination, pH and a carbon source. According to the method, a growth promotion mode and a stress induction mode are dynamically switched, biomass accumulation is promoted through dissolved oxygen sine wave pulse fluctuation in the vegetative period, astaxanthin synthesis is induced through high-oxygen and low-oxygen circulation and blue light regulation in the stress period, and compared with traditional static regulation, the biomass is increased, and the yield of astaxanthin is increased. A light-oxygen synergistic factor k is introduced to dynamically adjust the fluctuation range of dissolved oxygen, the problem of illumination-dissolved oxygen mismatching is solved, and the photosynthetic efficiency is improved; a stress intensity index SI is established, stress parameters are adaptively optimized based on the astaxanthin synthesis rate, cell damage caused by over-stress is avoided, and the stability of the astaxanthin synthesis rate in the stress period is improved.

The invention discloses a P.megaterium strain with stress resistance, growth promotion and environmental restoration functions and application thereof, and belongs to the technical field of microorganisms. According to the present invention, the preservation number of the Pristeria megaterium XT106 provided by the invention is CCTCC (China Center For Type Culture Collection) NO: M 2025912, and the preservation number of the Pristeria megaterium XT106 provided by the invention is CCTCC NO: M 2025912; the Pristia megaterium XT106 provided by the invention is a strain capable of oxidizing manganese to form a biological manganese oxide, and the biological manganese oxide can adsorb and remove heavy metals (Cu, Sb, Pb, Zn, Cd and Cr) and degrade antibiotics (tetracycline and ciprofloxacin). The strain can move, tolerate acid-base, high-salt, phenanthrene and sulfamethoxazole environments, has the capability of generating a biological membrane, and can generate hydrogen sulfide, adsorb / fix and remove heavy metals (Cd, Pb, Zn, Sb and Cu) and promote plant growth.

The invention discloses a molybdenum oxide nanorod material, a preparation method of the molybdenum oxide nanorod material and application of the molybdenum oxide nanorod material to improvement of corn nutrient utilization, growth promotion and lodging resistance, and belongs to the technical field of corn nutrient utilization and agricultural nano material application. The morphology and dispersity of the nanorod are optimized by combining molecular composition characteristics of key enzymes (such as nitrate reductase and glutamine synthetase) in a corn nutrient utilization process, and finally the functional nanorod with targeting property and biocompatibility is obtained and can be widely applied to nutrient regulation and control scenes of corn water culture and field planting. After the material is applied, the activity of nitrate reductase and glutamine synthetase of a corn root system can be activated in a targeted manner, the nutrient utilization efficiency is accurately improved, and sufficient nutrition support is provided for plant growth. After the fertilizer is applied to plants, the root system is promoted to be developed, the stalks are thick and strong, the lodging resistance is remarkably enhanced, the protein content of the plants and grains can be increased, and the synergistic effects of efficient nutrient utilization, robust plant growth, lodging resistance and yield increase are achieved.

The invention discloses a microbial liquid inoculant containing streptomyces lydicus as well as a preparation method and application of the microbial liquid inoculant, belongs to the technical field of microorganisms, and provides the microbial liquid inoculant containing the streptomyces lydicus, and the microbial liquid inoculant containing the streptomyces lydicus is prepared from 40 to 50 parts of streptomyces lydicus fermentation liquor, 3 to 7 parts of bacillus amyloliquefaciens fermentation liquor, 0.1 to 0.6 part of polysaccharide and 0.1 to 0.5 part of a dispersing agent. According to the microbial liquid fungicide containing the streptomyces lydicus, the streptomyces lydicus has a plant protection function, the polysaccharide has a non-specific protection effect on various bioactive substances, and the bacillus amyloliquefaciens and the streptomyces lydicus have a synergistic effect, so that the effects of resisting diseases, promoting growth and improving the quality and yield of crops are achieved. The preparation method of the microbial liquid inoculant is simple in process, low in preparation cost, low in energy consumption and suitable for popularization and application, and extraction and drying processes are avoided.

The invention relates to the technical field of platform drainage and promotion, in particular to a large factory cross-platform user drainage and growth promotion system based on artificial intelligence, and provides a basis for subsequent data analysis through behavior time axis alignment and interest dimension unification and attention attenuation node labeling; the interest of the low-activity platform user is effectively activated by constructing an interest energy conduction network and performing directional path planning to optimize resource allocation; by generating a three-dimensional tensor field, the spatial-temporal change and theme relevance of interest energy is captured, and a multi-dimensional analysis framework is provided for a complex interest scene; user interest energy ecological niche features are quantified based on a three-dimensional tensor field, multi-level dynamic clustering is achieved, and the user layering operation efficiency and the conversion effect are improved; by defining platform interest energy ecological niche indexes, identifying dominant platforms and complementary combinations, and optimizing platform ecological layout and synergistic effect; by generating the interest energy guide chain, the viscidity and activeness of the user to the platform are improved.

The invention belongs to the field of microorganisms, and relates to bacillus velezensis A111 and application thereof. The bacillus velezensis A111 disclosed by the invention can resist saline and alkaline, and has a relatively good inhibition effect on phytophthora capsici and ralstonia solanacearum. The bacillus velezensis A111 also has relatively strong capability of producing cellulase, amylase, protease, ACC deaminase and indole-3-acetic acid (IAA), and has a relatively good growth promoting effect on tomatoes, and a fungicide prepared from the biocontrol bacterium does not cause pollution to the ecological environment in the use process, and is pollution-free. By using the biocontrol bacterium disclosed by the invention, the dosage of other chemical pesticides can be reduced, the prevention and control cost of tomato diseases is reduced, the tomato growth is promoted, and the biocontrol bacterium has a good popularization value.

The invention discloses paenibacillus polymyxa FBN-001 and application thereof, the preservation number of the paenibacillus polymyxa FBN-001 is CCTCC NO: M 20251416, the paenibacillus polymyxa FBN-001 has the characteristics of multiple growth promoting functions and environmental adaptability, by means of the paenibacillus polymyxa FBN-001, crop growth can still be obviously promoted under the nitrogen-reducing fertilization condition, the nitrogen utilization efficiency is improved, and the application of the paenibacillus polymyxa FBN-001 is promoted. The soil micro-ecological environment is improved, so that stable yield and yield increase of crops are realized, chemical fertilizer dependence is reduced, and green agriculture and sustainable development are promoted.

The invention belongs to the field of microorganisms, and particularly provides a non-pathogenic penicillium ochrochloron strain which is derived from garlic rhizosphere soil, is classified and identified as penicillium ochrochloron, is preserved in the China General Microbiological Culture Collection Center (CGMCC), and has the preservation number of CGMCC 41151. The strain has broad-spectrum bacteriostatic activity and can antagonize various plant pathogens; the plant growth promoting agent has the growth promoting characteristic, can secrete siderophores and phospholytic enzymes, and improves plant iron and phosphorus nutrition; the composition is safe and free of pathogenicity to crops. Tests show that the P4 strain can relieve plant iron deficiency yellowing and promote crop growth. The invention also provides application of the strain in biological control of plant diseases and plant growth promotion.

The invention discloses an algorithm iteration task-based growth promotion intelligent system, which relates to the technical field of iteration requirements of intelligent optimization algorithms and comprises a data acquisition and preprocessing module, a feature extraction and selection module, a neural network model design module, a model evaluation and optimization module and an algorithm and result output module. By constructing the efficient neural network model, data can be better fitted, growth prediction can be carried out, exercise prescription parameters are dynamically adjusted according to real-time data and feedback of a user, the mapping relation between environment parameters and exercise efficiency is established through cross-layer correlation analysis, an exercise plan is automatically optimized, and the exercise efficiency is improved. The growth condition of the user is continuously monitored and accurately intervened, and the growth promotion effect and efficiency are improved.

The invention belongs to the technical field of agricultural fertilizers, and discloses a preparation process and application of a medical stone double-effect organic fertilizer with soil improving and growth promoting functions, the medical stone double-effect organic fertilizer comprises the following components by weight: 20-40 parts of activated medical stone powder with a particle size of less than or equal to 0.1 mm, and activated by a citric acid solution; the decomposed organic material is prepared by mixing livestock and poultry manure and crop straw according to the mass ratio of 2: 1-4: 1 and performing aerobic composting fermentation through a compound microbial agent, and the water content is smaller than or equal to 30%; the microbial agent contains phosphate solubilizing bacteria, nitrogen-fixing bacteria and rhizosphere growth-promoting bacteria, and the effective viable count is greater than or equal to 2 * 10 CFU / g; the auxiliary material comprises bentonite, a polyacrylamide water-retaining agent and a pH (Potential of Hydrogen) regulator, and the proportion of the bentonite is greater than or equal to 30 percent. The adsorption-desorption performance of the medical stone is enhanced by activating the medical stone through citric acid, and a synergistic system of water retention, fertilizer supply and growth promotion is formed by combining decomposed organic materials and functional microorganisms. According to the fertilizer, the stability of a soil aggregate structure can be remarkably improved (increased by 15-20%), the yield increasing rate of crops reaches 20-30%, and 30% of chemical fertilizer dosage is reduced. The method is suitable for acid soil remediation, continuous cropping obstacle treatment and economic crop planting.

The invention provides bacillus mobilis BM84 and application of the bacillus mobilis BM84. The preservation number of the bacillus mobilis BM84 is CCTCC (China Center For Type Culture Collection) NO: M20241799. The bacillus mobilis has a good disease prevention effect on tobacco root rot and has a remarkable growth promoting effect on tobacco plants. The strain has good theoretical research value and application prospect, can be used as a good test material for researching interaction and action mechanism of soil bacteria and plants, can also be used for research and development of soil bio-fertilizers and biological bactericides, can also become a good carrier of multifunctional engineering bacteria for disease prevention, growth promotion and the like, and has broad application prospects. And a new strain resource is provided for biological prevention and control of tobacco root rot.

The invention provides a spiropolyspora pink and selenium compound nutrient solution and application thereof in biological prevention and control and growth promotion of tomatoes, the prevention and control effects of different treatment combinations on tomato gray mold are studied, disease indexes and prevention and control effects of different treatment combinations are compared, activity changes of stress-resistant related enzymes SOD, POD and MDA are compared, and the disease resistance of the tomato gray mold is improved. A photosynthetic related index is chlorophyll content. The incidence rate of the spiropolyspora roseum and the selenium-enriched nutrient solution in the treatment group is lowest, the prevention and treatment effect is optimal, and the chlorophyll content is highest, so that the compounding agent can obviously improve the photosynthesis of the plants. Different compounding agents have an induction effect on the disease resistance of tomatoes. The selenium content of the compounded tomatoes is obviously higher than that of a control group and a single selenium-rich nutrient solution, the ratio of the optimal selenium-rich combination to the selenium-rich nutrient solution is 2: 3, the selenium content of tomato fruits can reach 52.67 g / kg, and it is indicated that the selenium absorption of the tomatoes can be promoted through the spiropolyspora pink.

The invention belongs to the technical field of agricultural microorganisms, and particularly relates to rhizobium capable of promoting plant cell division, resisting salt and alkali and reducing alkali and application of the rhizobium. The strain number of the Neorhizobium alkalisoli is YRD01, the preservation number of the Neorhizobium alkalisoli is CCTCC NO: M 20251990, and the Neorhizobium alkalisoli is preserved in China Center for Type Culture Collection, Luojia Hill, Wuchang District, Wuhan City, Hubei Province on September 9, 2025. The strain obtained by the invention is derived from sesbania root nodules and is obtained by screening and culturing the sesbania root nodules. The rhizobium (Neorhizium alkalisol) YRD01 obtained by screening in the invention is a strain of novel rhizobium which has the characteristics of high saline-alkaline tolerance, active alkali reduction function and efficient growth promotion.

The invention belongs to the technical field of microorganisms, and particularly relates to a pseudomonas TaRb6 capable of preventing diseases and promoting growth and application of the pseudomonas TaRb6. The TaRb6 strain provided by the invention belongs to a potential new species of pseudomonas, and the preservation number of the TaRb6 strain is CGMCC (China General Microbiological Culture Collection Center) No.36131. The strain TaRb6 and a fermentation inoculant prepared from the strain TaRb6 have good disease prevention and growth promotion functions on plants; the bacterial inhibition rate of sterile fermentation liquor of the strain TaRb6 on fusarium pseudograminearum reaches 46.54%-62.82%, and the bacterial colony diameter of the fusarium pseudograminearum can be reduced by 61.38% through metabolized volatile organic compounds of the strain TaRb6. After the TaRb6 bacterial suspension is used for seed soaking treatment of wheat, the incidence rate of wheat basal stem rot can be remarkably reduced, and the growth vigor of wheat can be promoted. In addition, the strain TaRb6 has broad-spectrum antibacterial ability, and the antibacterial rate of the strain TaRb6 on pathogenic bacteria of fusarium, botrytis cinerea, apical cyst and xanthomonas reaches 47.23%-67.02%.

The invention belongs to the technical field of biological control, and particularly relates to bacillus velezensis JH-25 and application thereof. The invention provides a bacillus velezensis JH-25, and the preservation number of the bacillus velezensis JH-25 is GDMCC No: 65188. The bacillus velezensis JH-25 can be used for preparing bacillus velezensis. The bacillus velezensis JH-25 provided by the invention is obtained by screening konjac tubers as samples, is an endophyte of konjac, and has biocontrol and growth promoting effects. Results of the embodiment show that the bacillus velezensis JH-25 provided by the invention can inhibit colletotrichum gloeosporioides, colletotrichum siamensis, colletotrichum gloeosporioides, corynespora cassiicola, soybean purpura and colletotrichum aceae, prevent and treat various diseases such as anthracnose, brown spot, leaf spot, purpura, stem rot and canker, and promote plant growth.

The invention belongs to the field of fungus secondary metabolites and application thereof, and particularly relates to trichoderma reesei HK1-12 as well as a secondary metabolite and application thereof, the collection unit is China General Microbiological Culture Collection Center (CGMCC), and the collection number is CGMCC No. 41951. The trichoderma HK1-12 has excellent characteristics in the aspects of growth promotion, plant protection and the like, and is expected to replace the existing similar products to be popularized and applied.

This invention discloses a composite microbial agent with both efficient ferulic acid degradation and growth-promoting functions, and its preparation method. The active component of this composite microbial agent contains *Pseudomonas soybeanii* with accession number CGMCC No. 36468. Pseudomonas soyae Strain A9, and *Pseudomonas aeruginosa* with accession number CGMCC No. 36469. Paraburkholderia oxyphila Strain A23. This invention, by screening and combining two functionally complementary strains, fundamentally solves the technical problems of existing single-strain ferulic acid degrading bacteria agents having limited function and unstable field application efficacy, achieving improved degradation efficiency and synergistic growth promotion effects.

The invention discloses a compound vitamin amino acid premix as well as a preparation method and application thereof, and belongs to the technical field of feed additives. An embedding system is formed by the chitosan, the polyethylene glycol and the glyceryl ricinoleate, and the tea tree oil and the perilla oil are compounded to serve as an antioxidant, so that the stability of vitamins can be remarkably improved. Besides, hydroxyapatite is added into the starch, modification treatment is performed through succinic anhydride and polyvinylpyrrolidone, the component compatibility is good, o-vanillin is introduced, the fragrance of o-vanillin has a food calling effect, the palatability is improved, the components of the functional additive are optimized, and the remarkable immune enhancement and growth promotion effects can be achieved; the cellular immunity and humoral immunity functions of the body are enhanced, and the granulating formability is effectively promoted by combining with the components of the carrier with good compatibility. On the whole, through interaction of the vitamin composition, the amino acid composition, the functional additive and the carrier, the immunity and growth performance of animals are jointly improved from multiple aspects.