124 results about "Crop quality" patented technology

The invention provides a multi-sensor fusion crop harvesting and pile-dividing cooperative control method and a multi-sensor fusion crop harvesting and pile-dividing cooperative control system. The method comprises the following steps: extracting morphological characteristics of crops from crop image data, and generating a crop maturity identification result according to a difference value between reflection spectrum data of two groups of wavebands; determining a crop quality identification result according to the morphological characteristics and the crop maturity identification result; an opening and closing control instruction is sent to a pneumatic flow guide plate at a pile separation opening corresponding to the crop quality recognition result in a multi-stage pile separation opening in the tail end of the conveying belt, so that the crops on the conveying belt are conveyed to a corresponding pile separation area; and when the pressure value of the pile dividing area is larger than a preset pressure threshold value, the harvesting speed of the crop harvesting and pile dividing all-in-one machine is adjusted according to the pressure value. According to the technical scheme provided by the invention, the shape and maturity of the crops are analyzed through the image and spectral data, piling and harvesting can be intelligently controlled, and accurate and efficient crop quality grading and harvesting management are realized.

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 discloses a seed coating containing an arbuscular mycorrhizal inoculant. The seed coating is prepared from the following components in parts by weight: 25 to 35 parts of the arbuscular mycorrhizal inoculant, 35 to 45 parts of a soil conditioner, 15 to 20 parts of talcum powder and 15 to 20 parts of polyvinyl acetate. The invention further provides a preparation method of the seed coating containing the arbuscular mycorrhizal inoculant and application of the seed coating to reduction of soil heavy metal pollution, increase of disease resistance and stress resistance of crops and promotion of crop growth. The seed coating containing the arbuscular mycorrhizal inoculant wraps the surfaces of plant seeds, provides good nutritional ingredients for growth and development of the seeds, and is beneficial to improving the germination rate of the seeds under heavy metal cadmium stress, reducing soil heavy metal cadmium pollution, improving soil quality, increasing soil fertility and improving disease resistance and stress resistance of crops; growth of seedlings is promoted, and crop quality and yield are improved.

The invention relates to a composite microbial fertilizer with a saline-alkali soil improvement effect and a preparation method thereof, and belongs to the technical field of microbial fertilizer preparation, the fertilizer comprises the following raw materials by mass: 10-30 parts of modified charcoal, 5-8 parts of a microbial agent, 30-50 parts of an inorganic fertilizer, 10-20 parts of a soil improvement agent and 3-5 parts of other auxiliary agents; wherein the modified biochar is obtained by performing segmented heat treatment modification on animal husbandry wastes; the microbial agent is obtained by immobilizing compound microorganisms by using sodium alginate gel reinforced by a mineral filler and micron-sized charcoal powder. The prepared fertilizer has the effects of improving crop quality and crop yield and improving saline-alkali soil.

The invention relates to an intelligent control method and system for high-pressure atomization irrigation and a storage medium of the intelligent control method and system, and aims to solve the problem that the quality is inconsistent due to the fact that traditional water and fertilizer management of high-value crops is difficult to sense the internal physiological state of the crops in real time. Randomly selecting a plurality of offering samples in each management partition for destructive sampling, and obtaining crop truth value data through physiological and biochemical detection; then, an irrigation rule base is established and dynamically updated based on the truth value data, and then variable control instructions are generated for the management partitions in combination with the real-time environment data; the invention further provides a system for implementing the method and a storage medium, accurate regulation and control starting from real demands of crop bodies are achieved, the consistency of crop quality and the resource utilization efficiency are effectively improved, and self-learning and predictive prevention and control capabilities are achieved.

The invention belongs to the technical field of organic fertilizers, and discloses an organic fertilizer for improving rice quality under saline-alkali stress, which comprises chicken manure, rice straw, modified attapulgite and a compound microbial agent. The invention also discloses a preparation method of the organic fertilizer. The preparation method comprises the following steps: S1, pretreating and mixing the raw materials; s2, inoculating with a complex microbial inoculant; s3, staged composting control; and S4, post-processing. A chicken manure-rice straw-heat modified attapulgite-complex microbial inoculant system is constructed, the problems of long composting period, incomplete saline-alkali soil improvement, insufficient crop stress resistance and the like in the traditional technology are solved, the composting efficiency is improved, the pH and conductivity of the saline-alkali soil are reduced, meanwhile, the tillering ability and root activity of rice are enhanced, and the yield of the rice is increased. A closed loop of agricultural waste recycling, soil remediation and crop quality improvement is formed, and the comprehensive benefits are superior to those of an existing single technology.

A use of a ZmCCD8 gene in maize breeding, including overexpressing the ZmCCD8 gene in maize plants through breeding to increase iron content in maize leaves and / or kernels. The ZmCCD8 gene has a nucleotide sequence as shown in SEQ ID NO: 1. The use of the ZmCCD8 gene in maize breeding can provide important genetic resources and technical support for improving crop quality and enhancing stress resistance, having important application prospects.

The invention discloses a controlled-release potassium-magnesium fertilizer as well as a preparation method and application thereof, and relates to the technical field of controlled-release fertilizer production. Potassium magnesium crude salt recovered through salt lake carnallite flotation crystallization is used as a core raw material, high-roundness modified potassium magnesium salt composite particles are constructed through extrusion master batch forming, roller wet amplification, centrifugal polishing shaping and micropore filling and sealing, and the controlled-release potassium magnesium fertilizer is prepared through coating. The problems that potash fertilizer particles prepared through traditional extrusion granulation have many edges and corners and are not prone to film coating are solved through a multi-stage granulation process, secondary granulation is conducted through heterogeneous fine powder materials, surface micropores are filled, the surface smoothness of the particles is greatly improved, meanwhile, the influence of potassium ions on film forming is isolated, and the potassium fertilizer has the good application prospect. According to the finally prepared controlled-release potassium-magnesium fertilizer, a nutrient release curve is precisely regulated and controlled through the controlled-release film layer, double-nutrient continuous supply of crops with high potassium and high magnesium requirements is achieved, the potassium and magnesium deficiency symptoms of the crops are reduced, the crop quality is improved, and a core technical support is provided for high-value utilization of salt lake potassium ore resources and green quality improvement of the crops.

The invention discloses a winter wheat quality monitoring method and device for coupling integrated learning rib shape correction and data assimilation, and relates to the field of crop quality monitoring. The method comprises the steps of preprocessing acquired information data, determining a winter wheat planting area in a target monitoring area based on a classification model, and dividing the winter wheat planting area into different rib type variety areas; performing inversion and extraction of quality-related crop parameters by adopting a machine learning regression model to obtain a crop parameter time sequence; determining a simulation state quantity time sequence of the rib type variety area based on a crop growth model; and performing multivariable collaborative data assimilation processing according to the crop parameter time sequence and the simulation state quantity time sequence, driving the crop growth model to the winter wheat mature harvest time according to the assimilated data, and performing GPC correction prediction on the winter wheat in the tendon type variety area based on the correction factor to represent the quality of the winter wheat grains. The invention aims to improve the quality monitoring precision of regional winter wheat.

The invention discloses a bio-organic fertilizer and application thereof, belongs to the field of bio-organic fertilizers, and solves the problem of environmental pollution caused by stacking or landfill of potato residues. The bio-organic fertilizer comprises potato residue zymolyte, a decomposed organic fertilizer and a compound microbial agent, the compound microbial agent is prepared from trichoderma harzianum, bacillus subtilis and bacillus velezensis; the preparation method comprises the following steps: mixing the potato residue zymolyte, the decomposed organic fertilizer and the compound microbial agent, controlling the water content to be 40-50%, fermenting at 40-50 DEG C for 10-15 days, and airing and crushing a fermented product to obtain a finished product. The invention relates to application of a bio-organic fertilizer in quality improvement and yield increase of crops. According to the method, the potato residues which are difficult to degrade are converted into organic fertilizers with high added values through a directional enzymolysis technology, so that the problem of environmental pollution is solved; the compound microbial flora and the enzymolysis product have a synergistic effect to accelerate the conversion of organic matters; the fertilizer is rich in active organic matters and functional microorganisms, and can significantly improve the soil structure.

The present application belongs to the technical field of microbial inoculant, and particularly relates to a liquid microbial inoculant application method applicable to different crops, comprising the following steps: S1, dissolving the microbial inoculant in 50-90wt% water to obtain a liquid microbial inoculant; S2, selecting a target crop, determining the fertilization requirement according to the growth stage, and uniformly applying the liquid microbial inoculant to the soil at the root of the target crop; S3, performing field management, regularly irrigating, controlling soil humidity, regularly weeding, and timely preventing and treating diseases and pests. The active microbial strains in the liquid microbial inoculant can form a symbiotic relationship with the roots of crops, promote the absorption and utilization of nutrients by crops, and thus increase the yield of crops. Meanwhile, the beneficial microorganisms in the microbial inoculant can decompose harmful substances in the soil, improve the soil environment, and improve the quality of crops. The microbial inoculant does not contain chemical synthetic pesticides and fertilizer components, is friendly to the environment and ecology, meets the requirements of green and sustainable development.

The application relates to an intelligent control method and system of high-pressure atomization irrigation and a storage medium thereof, and aims to solve the problem that traditional water and fertilizer management of high-value crops cannot realize real-time sensing of internal physiological states of crops, leading to inconsistent quality. The intelligent control method divides an irrigation area into multiple management partitions, randomly selects a plurality of sacrifice samples in each management partition, destructively samples the sacrifice samples, obtains true value data of crops through physiological and biochemical detection, establishes and dynamically updates an irrigation rule library based on the true value data, generates variable control instructions for each management partition in combination with real-time environmental data, and finally controls a high-pressure atomization sprinkler irrigation system to accurately execute. The application also provides a system and a storage medium for realizing the method, realizes accurate regulation and control starting from the real demand of crops, effectively improves the consistency of crop quality and the resource utilization efficiency, and has self-learning and predictive prevention and control capabilities.

The invention belongs to the technical field of biology, and discloses a peptide signal molecule GhEG45 and application of a gene engineering product of the peptide signal molecule GhEG45 in plant growth regulation and disease resistance. The gene coding sequence of the peptide signal molecule GhEG45 is as shown in SEQ ID NO. 1, and the amino acid sequence of the peptide signal molecule GhEG45 is as shown in SEQ ID NO. 2. The peptide signal molecule GhEG45 can prevent and treat cotton verticillium wilt and regulate plant growth, can also be used for cultivating new varieties of transgenic plants resisting V.dahliae infection, improves the disease resistance and stress resistance of the plants, plays a role in regulating plant growth, increases both production and income, and improves crop quality.

The invention relates to a biostimulant composition containing polymerized glutamate sugar ester as well as a preparation method and application thereof, and belongs to the technical field of fertilizer synergists. According to the scheme, the full-water-soluble composite biostimulant is prepared by taking polymerized glutamate sugar ester and algal polysaccharides as main functional components and compounding active substances such as gamma-aminobutyric acid. The product can achieve the functions of promoting crop rooting, improving nutrient absorption and utilization efficiency, improving crop stress resistance, improving crop quality, improving soil, preserving water and fertilizer and the like according to different composition components.

The invention relates to the technical field of crop quality comprehensive evaluation, and discloses a crop quality comprehensive evaluation method and system based on deep learning, and the method comprises the following steps: collecting and preprocessing multi-modal data, deploying an unmanned plane carrying a multispectral camera and a ground high-definition camera, the method comprises the following steps: synchronously collecting multi-dimensional data such as a canopy structure, leaf texture and fruit morphology, constructing a three-flow deep neural network architecture, detecting crops in a specified area from a plant integrity detection flow, a pest and disease damage detection flow and a growth robustness detection flow, and constructing a comprehensive evaluation model. And mapping a detection result in the three-flow deep neural network into the comprehensive evaluation model to generate a comprehensive evaluation report. According to the crop quality comprehensive evaluation method and system based on deep learning, crops in a designated area are detected from a plant integrity detection flow and a pest and disease damage detection flow by constructing a three-flow deep neural network architecture, the detection has real-time performance and accuracy, and therefore it is guaranteed that the evaluation result is more accurate.

The invention discloses an air circulation system for planting, and belongs to the technical field of planting devices. Comprising an air conditioner body, the input end of the air conditioner body fixedly communicates with an air conditioner near air pipe, the section, away from the air conditioner body, of the air conditioner near air pipe fixedly communicates with an air conditioner internal circulation output pipe, and the right side of the outer side wall of the air conditioner internal circulation output pipe fixedly communicates with an air suction pipe and an exhaust pipe through a three-way valve; through the integrated design, the air circulation system for planting has the remarkable beneficial effects that firstly, the system constructs a closed loop of air treatment-conveying-recycling-adjusting, the air blowing pipes and the air suction ports which are symmetrically arranged are combined, uniform flowing of air in a planting area is achieved, flowing dead angles are thoroughly eliminated, and it is ensured that the temperature and the humidity are consistent in all areas; uneven growth of crops due to local environment differences is avoided, and the quality stability of the crops is improved.

The present invention relates to the field of pesticide technology, specifically a flower and fruit preservation pesticide composition, formulation, and application thereof. The active ingredients of the pesticide composition are sodium p-chlorophenoxyacetate and thidiazuron, with the mass ratio of sodium p-chlorophenoxyacetate to thidiazuron being (1.25-25):1. The combined action of the pesticide composition can enhance the flower and fruit preservation efficacy of plants and improve crop quality, while being harmless and having wide adaptability.

The invention discloses a mineral bioenergy fertilizer fermentation yeast as well as a preparation method and application thereof. The fermentation yeast is prepared by combining rare earth zeolite, attapulgite, lignite humic acid, rice bran, bran, monoammonium phosphate, EM bacteria, bacillus subtilis and brown sugar. The preparation method comprises the following steps: preparing a biological bacterium expanded diluent, crushing rare earth zeolite, attapulgite and lignite humic acid, carrying out ammoniation pretreatment, mixing, and carrying out a two-stage fermentation method. The prepared fermentation yeast integrates mineral substances, humic acid, microbial activity and environmental protection functions, and has the characteristics of improving the fertilizer value, reducing the fertilizer cost, promoting soil improvement and improving the crop quality. The soil biological improvement matrix prepared by conversion of the strain has the remarkable effects of good improvement effect, low cost, high speed, high yield, excellent quality and the like. The pH value of the severe saline-alkali soil is reduced from 9.77 to 7.0-7.5 in the current year; the salt content is reduced from 1.23 percent to 0.35 to 0.40 percent; the content of organic matters is increased from less than 1% to 1.5-2.0%, and a good functional effect is embodied.

The invention relates to a soil conditioner based on rare earth tailings, waste biomass and microorganisms and a preparation method of the soil conditioner. The method comprises the following steps: separating and breeding rare earth mine indigenous bacteria capable of tolerating rare earth elements from rare earth mine soil, and separating and breeding efficient lignin degrading bacteria from a natural environment; then mixing rare earth mine indigenous bacteria and efficient lignin degrading bacteria according to a certain proportion, compounding and culturing to prepare a liquid microbial agent; and mixing the rare earth tailings to be treated, the waste biomass and the liquid microbial agent, composting and fermenting to finally obtain the soil conditioner capable of improving the physical and chemical properties of soil, improving the fertilizer efficiency of the soil and improving the quality of crops. The method simultaneously solves the environmental protection problem caused by massive accumulation of the rare earth tailings and the resource utilization problem of the waste biomass in China, has the advantages of simple process flow, low production cost and the like, and provides a brand new idea for efficient treatment and resource utilization of the rare earth tailings.

The invention relates to the technical field of plant growth regulation compositions, and particularly discloses a plant regulation composition containing homobrassinolide and triacontanol, which is used for solving the problems that the effect is very good when the existing plant growth regulator is singly used, however, the effect is poor when the existing plant growth regulator is subjected to binary compounding and has a synergistic effect or not. Plant growth is promoted, the yield is increased, and the stress resistance is improved; 0.014% of 28-homobrassinolide and triacontanol are reasonably compounded, and an auxiliary agent and other excipients are added to prepare a soluble concentrate dosage form, so that the usage amount of the 0.014% of 28-homobrassinolide and triacontanol can be reduced, and a synergistic interaction effect can be achieved; the composition can better regulate crop growth, improve crop yield, improve crop quality and improve stress resistance, and has a more significant effect than a single agent.

The invention relates to a pesticide-fertilizer composition containing fluchlorantraniliprole and application thereof.The pesticide-fertilizer composition comprises a pesticide component and a fertilizer component, the pesticide component is fluchlorantraniliprole, the content of the fluchlorantraniliprole accounts for 0.01%-20% of the total weight of the pesticide-fertilizer composition, and the content of the fertilizer component accounts for 10%-90% of the total weight of the pesticide-fertilizer composition. The balance is an agriculturally acceptable auxiliary agent. The preparation is prepared into soluble powder, the formula is reasonable, pesticide and fertilizer promote each other, nutrition is rich, plant stress resistance is improved while pest and disease damage is prevented, and crop quality and yield are improved.

The utility model relates to the technical field of vegetable cultivation frames, and discloses a multifunctional vegetable cultivation frame which comprises a ground inserting connecting piece, a connecting rod is slidably connected to the interior of the ground inserting connecting piece, a fixing rod is fixedly connected to the interior of the connecting rod, a first telescopic spring is arranged on the outer wall of the fixing rod in a sleeved mode, and a second telescopic spring is arranged on the outer wall of the fixing rod. One end of the first telescopic spring is fixedly connected to the interior of the connecting rod, the other end of the first telescopic spring is fixedly connected with a clamping block, and the outer wall of the ground inserting connecting piece is fixedly connected with a fixing ring. The problems that a cultivation frame is not flexible enough, the dynamic requirement for plant growth cannot be met, and plant growth is limited or the shape is not good easily are solved, and the purposes that the height of the cultivation frame can be adjusted according to the growth stage and habit of plants, it is guaranteed that the plants have enough space to grow healthily, and the crop quality is improved are achieved. Meanwhile, the planting space can be effectively utilized, especially within the limited height.

The invention provides bacillus zhangzhouensis and application thereof, and belongs to the technical field of biological agriculture, the bacillus zhangzhouensis is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.34248, the preservation number is CGMCC No.34248, and the preservation number is CGMCC No.34248. The bacterial strain and the biological agent containing the bacterial strain have a good effect of improving plant stress resistance (water stress resistance), can maintain basic physiological activities of crop plants under the condition of soil water shortage or waterlogging, can further promote growth of the crop plants, and achieve yield improvement and crop quality improvement. And the bacillus zhangzhou is collected from the natural environment, is safe, environment-friendly and pollution-free, and has a wide application prospect.

The application relates to the technical field of carbon quantum material, in particular to a preparation method and application of carbon quantum dot loaded transition metal monatomic material. The preparation method of the carbon quantum dot loaded transition metal monatomic material is as follows: carbon quantum dot raw materials are mixed with a solvent to obtain a carbon quantum dot precursor solution, a transition metal-ligand precursor solution is prepared in sequence, the carbon quantum dot precursor solution and the transition metal-ligand precursor solution are uniformly mixed, and then are treated by a solvothermal method, and the carbon quantum dot loaded transition metal monatomic material is prepared by filtration. The carbon quantum dot loaded transition metal monatomic material provided by the application has good fluorescence performance, and can realize ton-level production. The production process is simple, the production equipment is easy to operate, the production cost is low, the production is green, environment-friendly and pollution-free, and can promote crop root growth, enhance nitrogen fertilizer absorption, improve crop quality, shorten the maturation period and strengthen the nutritional components in the agricultural field.

The invention relates to the technical field of foliar fertilizers, and discloses a foliar fertilizer based on plant SOD cultivation and a preparation method and application thereof.The foliar fertilizer is prepared from, by mass, 8-20% of natural mineral powder, 8-12% of seaweed extract, 2-6% of traditional Chinese medicine extract, 10-16% of plant extract, 1-3% of rooting agent, 1-3% of anti-continuous cropping agent, 1-3% of anti-blocking agent and the balance carbamide; the leaf fertilizer provided by the invention can improve enzyme activity units in different crops by 3-100 times or more, and can improve the quality and increase the yield of the crops by 5-8%. The SOD supplemented in the growth period of crops can enter cells in the fruits, can be stored in the plant fruits as a storage, can be conveniently absorbed by a human body, and greatly improves the content of SOD (superoxide dismutase) in the crop fruits and vegetables.

The invention discloses an insecticidal preparation based on rosemary-mint mixed oil and a preparation method and application thereof, and belongs to the crossing field of green agriculture and biotechnology. The mixed essential oil is efficiently extracted through an ultrasonic-subcritical coupling extraction process, the rosemary oil extraction rate can reach 12.1%-12.4%, the menthol retention rate reaches 95.2%-97.1%, and the solvent residue is lower than 0.01 mg / kg; a full-plant-source ternary compound system (mixed essential oil, sophora alopecuroide extract and citrus peel oil) is designed, the synergistic coefficients of 50 formulas are all larger than or equal to 1.25, and six types of pests including thrips, red spiders, aphids, whiteflies, plutella xylostella and leafhoppers can be covered; a special application technology for eight types of crops (including tea leaves and traditional Chinese medicinal materials) is established, the quality of the crops reaches the standard after pesticide application, for example, the water extract of the tea leaves is increased by 1.2%, and the astragaloside content meets the standard of Chinese Pharmacopoeia 2020 edition; the storage stability is optimized, the control effect retention rate can reach 94.7% after 6 months of normal-temperature storage, and the requirement of 2-year industrial shelf life can be met; finally, the average reduction rate of the chemical pesticide is 90.3%, and the preparation cost is less than or equal to 80 yuan / kg. The composition can replace chemical pesticides and is suitable for green prevention and control of insect pests of fruits and vegetables, fields, commercial crops and traditional Chinese medicinal materials.

An agricultural planting system applicable to a factory-based assembly-line operating mode. The system comprises a carrier body (1), a seedbed body (2), and a conveying module (3). The carrier body has a cavity for accommodating and cultivating crops. The seedbed body is provided with a starting end (201) and a terminating end (202). The carrier body moves from the starting end to the terminating end in a designated direction via a power device on the seedbed body. The conveying module surrounds the seedbed body to achieve cyclic conveying of the carrier body. The conveying module further comprises at least one direction-changing assembly (4) for adjusting the direction or angle of the carrier body to ensure correct docking with the seedbed body. The system optimizes the crop planting process, reduces manual intervention, and improves agricultural production efficiency and crop quality.

The invention discloses an application of acetyl ursolic acid in promoting the growth of burkholderia. Eight Burkholderia strains are separated from soil, the separated eight Burkholderia strains are cultured in a nitrogen-free culture medium added with 50 mg / L of acetyl ursolic acid, and the result shows that the biomass of Burkholderia can be increased by 40%-95% compared with that of a control group without acetyl ursolic acid within 24 h through acetyl ursolic acid, the Burkholderia strain has a remarkable growth promoting effect on Burkholderia, and the Burkholderia strain has a good application prospect. The core functions such as nitrogen fixation are not influenced. The concentration gradient experiment further determines that the effective concentration range of the acetyl ursolic acid on the growth promotion of the burkholderia is 5-100 mg / L, and the optimal concentration of the acetyl ursolic acid is 25-75 mg / L. Acetyl ursolic acid is used as a specific growth promoting agent of burkholderia, not only are the problems of specificity, safety and stability in the prior art solved, but also the synergistic effect of promoting growth and improving crop quality is realized.

The invention provides a composted straw composite polysaccharide microbial agent as well as a preparation method and application thereof, and belongs to the technical field of microbial agents. The composted straw composite polysaccharide microbial inoculum is prepared from the following raw materials in parts by weight: 3-5 parts of soybean oligosaccharides, 1-1.5 parts of yeast zinc, 2-3 parts of photosynthetic bacteria flora, 2-3 parts of lactic acid bacteria flora, 5-6 parts of EM bacteria, 70-72 parts of animal amino acids and 10-15 parts of trehalose. The polysaccharide is added to assist microbial fermentation, so that the microbial fermentation speed is remarkably increased, the time required for straw decomposition is shortened, the soil fertility is improved, the crop quality is improved, and diseases are reduced.

This application relates to the field of microbial fertilizer technology, specifically to a microbial suspension fertilizer based on seaweed nano-zinc oxide, its preparation method, and its application. First, *Sargassum fusiforme* (seaweed) is washed, dried, and ground into powder, then mixed with water to form an algae slurry. Alginic acid lyase is added to the *Sargassum fusiforme* slurry to obtain an enzymatic hydrolysate. Then, the *Sargassum fusiforme* enzymatic hydrolysate is mixed with zinc acetate under heating conditions. The reaction product is centrifuged, washed, and calcined to obtain seaweed nano-zinc oxide particles. Finally, the nano-zinc oxide particles and adjuvants such as compound microbial agents are formulated into a microbial suspension fertilizer. By utilizing the reaction between *Sargassum fusiforme* enzymatic hydrolysate and zinc acetate, seaweed nano-zinc oxide with more uniform particle size can be obtained, and its photocatalytic and antibacterial properties are improved. Furthermore, the microbial suspension fertilizer prepared based on this seaweed nano-zinc oxide can promote crop growth, improve crop quality, and fortify grain zinc nutrition, making it suitable for various agricultural production applications.