31 results about "Nutrient deficiency" patented technology

The invention provides a banana nutrient deficiency detection method based on a multi-modal enhanced collaborative multi-scale module. The banana nutrient deficiency detection method comprises a data enhancement module which generates new data conforming to real pathological distribution based on a Stable Diffusion technology; the data processing module is used for extracting image multi-resolution features based on a multi-scale feature fusion network; the model optimization module is used for improving the element deficiency differentiation feature capturing capability based on a channel attention mechanism; the model training module dynamically focuses the difficult sample based on a mixed loss function of focus loss and cross entropy, and optimizes model training in a sample imbalance scene; the model application module is used for deploying a model to a WeChat applet based on model lightweight design to realize convenient detection of a mobile terminal; finally, the method is based on an MS-ConvNeXt model constructed by the modules, so that the accuracy of leaf element deficiency detection is greatly improved, and the convenience of field real-time detection is met.

The invention discloses a nutrient deficiency symptom diagnosis system based on RAG, and relates to the technical field of symptom diagnosis. The system comprises a question-answer pair extraction module which is used for collecting data related to the nutrition field, carrying out preprocessing based on the collected data, and carrying out question-answer pair extraction on the preprocessed data through a large model; the database construction module is used for independently extracting questions in the question and answer pairs, carrying out vectorization processing on the proposed questions, converting the questions into high-dimensional vectors and storing the high-dimensional vectors in a vector database; and a result generation module. According to the method, authoritative articles in the nutrition field are converted into question and answer pairs, so that an input and output mode of a large model can be better fit. When a user asks a question, the direct'question-answer 'structure directly retrieves a predefined'question' similar to the question, and directly returns a corresponding'answer 'after finding a matching item, so that a solution can be accurately found without carrying out complex integration and information extraction on document fragments.

The invention relates to the technical field of intelligent agriculture and artificial intelligence, and discloses an AI-based avocado nutrition diagnosis method and system.The AI-based avocado nutrition diagnosis method comprises the steps that multi-source sensor data and multispectral image data of an avocado planting area of a farm are collected, and data preprocessing is carried out; carrying out nutrient deficiency intelligent identification; a space-time prediction model is constructed, and the future change trend of the nutrition state is predicted; analyzing nutrition state change reasons, and formulating and implementing a regulation and control strategy and optimizing the regulation and control strategy; constructing a decision support module driven by the knowledge graph and providing interpretable intelligent suggestions; carrying out system integration and real-time optimization; according to the invention, through the four-dimensional space-time prediction model technology based on the Transform architecture, accurate prediction of the future change trend of the nutrition state is realized.

The invention discloses an exposed high and steep slope microtopography reconstruction method for improving vegetation colonization ability, which comprises the following steps: screening rocks with high weathering sensitivity, and establishing a weathering rate quantitative evaluation model; the weathering process of the rock with high weathering sensitivity is accelerated; constructing a micro-topographic space; based on the micro-topographic space, designing a three-stage compound matrix through the nutritional defects of the weathered product of the high-weathering-sensitivity rock, and carrying out layered fusion on the three-stage compound matrix and the micro-topographic structure; and carrying out vegetation planting and weathering-growth synergistic maintenance. According to the method, permeation of a weathering agent is guided through preset cracks, rock is converted into a nutrient matrix through an enhanced weathering technology, and the problem that traditional physical transformation depends on an external matrix and is prone to being deficient in the later period is solved; according to the method, the climate areas are graded, different treatment is conducted on the different climate areas according to the grading result, the water retention rate of the arid area is increased, the drainage efficiency of the wet area is improved, the overall structure is still stable when the gradient is larger than 60 degrees, and the gradient limitation of vegetation bags is broken through.

The invention relates to the technical field of garden soil trace element compensation, and discloses a soil trace element compensation device for a garden plant regional nutrient deficiency symptom.The soil trace element compensation device comprises an adjusting sleeve, a pointing shifting ring is fixedly connected to the outer portion of the adjusting sleeve, and an irrigation inner pipe and a liquid fertilizer outer sleeve are arranged in the adjusting sleeve; the top of the irrigation inner pipe is provided with an irrigation water connector, the top of the liquid fertilizer outer sleeve is provided with a liquid fertilizer connector, the middle of the liquid fertilizer outer sleeve is fixedly provided with a directional partition plate, the bottom of the directional partition plate is fixedly connected with a liquid fertilizer double-layer partition plate, and the bottom space of the directional partition plate is evenly divided by the liquid fertilizer double-layer partition plate. A circulation opening is formed in the directional partition plate close to the pointing side of the pointing shifting ring. The telescopic lateral extension pipe is arranged and matched with the pointing direction of the pointing shifting ring, the distance between the fertilization opening and the root system is specifically extended, an effective root area is anchored to be more attached to the root surface, and the absorption efficiency of liquid fertilizer is improved.

The utility model relates to the technical field of planting and cultivating equipment, especially to an adjustable cultivation container for under-forest planting of Sichuan red peony root, comprising: a container body; an adjusting assembly comprising a threaded cylinder body, a discharging disc, a threaded screw rod, a drainage disc, an adjusting handle, a chute and a threaded plug seat; and a nutrition assembly. The utility model has a reasonable structure, and the adjusting assembly can adjust the internal space of the container according to different growth stages of Sichuan red peony root, so as to avoid root crowding and nutrient deficiency, reduce damage caused by traditional transplanting, improve the survival rate, and adapt the adjusting support to complex under-forest topography to ensure the stability of the container. The nutrition assembly can realize water resource recycling, accurately control the soil pH value and nutrient supply, and meet the growth requirements of Sichuan red peony root. The design of the drainage disc and the threaded plug seat can flexibly adjust the drainage efficiency and the aeration property of the container to ensure the health of the root system. The utility model effectively reduces the risk of insect pests and is convenient to operate, reduces the difficulty of planting management, and has high overall practicality and use effect.

The present invention provides methods of increasing plant productivity and tolerance to water and nutrient deficiency by overexpressing an exonuclease responsible for the d200 mutant. Also provided are plants which overexpress the exonuclease and have improved tolerance to water and nutrient deficiency.

The invention discloses a potato breeder's seed soilless culture production device and application thereof, and relates to the technical field of potato breeder's seed soilless culture, the potato breeder's seed soilless culture production device comprises a base, a threaded lifter is fixedly connected to the position, close to the edge, of the top of the base, and a culture table is fixedly connected to the top of the threaded lifter. According to the potato breeder's seed soilless culture production device and the application thereof, a nutrient solution with certain viscosity is conveyed into the liquid storage shell, the lead screw sliding table drives the electric rotary table to reciprocate, so that a thickening nutrient solution is evenly stirred, and the threaded lifter drives the liquid storage shell to move upwards; the roots of the potato breeder's seeds are immersed into the nutrient solution through upward movement of the liquid storage shell, a layer of nutrient solution with viscosity is attached to the surfaces of the roots of the potato breeder's seeds along with downward movement of the liquid storage shell, and the problem that the roots of the potato breeder's seeds are insufficient in nutrition due to the fact that the atomized nutrient solution is low in viscosity and prone to volatilization or dripping is solved.

The utility model relates to the field of ancient tree protection, and discloses a soil improvement device which comprises a communicating pipe and a water storage tank, the communicating pipe is installed outside an ancient tree, a limiting frame is installed on the inner side of the communicating pipe, a fertilization pipe is installed in the limiting frame, and a material storage tank is installed at the top end of the fertilization pipe. A connecting pipe is installed between the fertilizing pipe and the communicating pipe, a box cover is installed at the top end of the water storage box, collecting openings are formed in the two sides of the top end of the box cover, and a driving motor is installed in the middle of the top end of the box cover. According to the soil improvement device, water is irrigated and fed through a water pump, a nutrient agent in a storage tank can be fed into a discharging channel of a fertilization pipe, then water enters the discharging channel and is discharged out of a discharging hole to enter soil, and the soil improvement efficiency is improved through the structure of annularly surrounding ancient trees for fertilization; the quality of the soil environment for ancient tree survival is improved, and the problem of insufficient nutrition supplied to the soil is solved.

The present application relates to soil remediation and improvement technical field, especially to a kind of method for soil fertility recovery after soil electrokinetic remediation and application thereof, comprising the following steps: soil basic parameter detection: the soil after electrokinetic remediation is zoned, and the pH value, alkali-dissolving nitrogen, available phosphorus, available potassium content and moisture content of each region soil are detected respectively;pH precision regulation: according to the pH value of each regional soil, pH is adjusted using differential reagent, to reach the suitable growth interval of crops;Quasi-nutrient supplement: based on the nutrient deficiency amount of detection analysis, combined with the nutrient amount brought in during pH adjustment process, calculate and supplement nitrogen, phosphorus and potassium fertilizer;Add soil conditioner to soil, mix evenly after ploughing, adjust soil moisture content, cover film maintenance, complete soil fertility recovery.The present application effectively solves the problem that traditional technology cannot zoned differential regulation of electrokinetic remediation soil acid and alkali, pH adjustment, nutrient supplement and structure improvement cannot be synchronized, fertility recovery is slow, and farmland reclamation is lagging behind.

This invention proposes an intelligent feeding method and system based on an AI dynamic formulation engine, comprising: constructing a digital twin model of the animal, mapping the animal's physiological parameters to a unified physiological state vector; inputting the physiological state vector into a quantum-inspired neural network to obtain a real-time nutrient requirement spectrum and a nutrient deficiency risk assessment matrix, and generating an optimal feed formulation based on these two; controlling the feeding equipment to feed the animal according to the optimal feed formulation; monitoring the animal's feeding behavior and uneaten feed, and transmitting the feeding feedback data back to the AI ​​engine to form a closed-loop control system; storing the formulation data, feeding records, and animal response data for each feeding using blockchain technology to construct a complete feeding traceability chain; and quantitatively evaluating the effectiveness of the feeding program by comparing and analyzing historical data with current growth indicators. This invention can improve feed conversion rate and formulation adaptability, reduce feed costs, reduce human intervention, and improve the level of automation in animal husbandry.

We provide the system. [Solution] A means for the user to input a meal menu, A means of sending the meal menu entered by the user to the server, A method for the server to analyze the received meal menu and identify deficient nutrients, A means for generating a meal plan to supplement the nutrient deficiencies identified by the server, A means of providing the user with a meal menu generated by the server, A method for searching for and suggesting supermarkets or restaurants based on the user's location information, A system that includes this.

The invention relates to the technical field of remote sensing detection, in particular to a device and system for estimating cultivated land yield, and the system comprises a spectral data acquisition module, an image data acquisition module, a soil and physiological data acquisition module, an environmental parameter acquisition module, a pest and nutrition deficiency distinguishing module and a yield estimation and correction module. The device comprises a central controller and a power supply assembly for providing detection endurance, wherein the central controller is in signal connection with a spectral data acquisition assembly, an image data acquisition assembly, a soil and physiological data acquisition assembly and an environmental data acquisition assembly. According to the method, diseases and insect pests and nutrition deficiency are accurately distinguished through multi-source data acquisition and cross validation, the yield loss is corrected by dynamically integrating biological stress and environmental factors, and the defects of similar phenotype misjudgment and low estimation precision in the conventional technology are overcome.

The invention discloses a management method, system, equipment and medium for crop growth cycle detection, and relates to the technical field of intelligent farming management, and the method comprises the steps: carrying out the aerial photographing of a target crop region through an unmanned plane, and obtaining a remote sensing image and a multispectral image; performing feature extraction and multilayer feature fusion on the remote sensing image to obtain output feature maps with different levels of semantic information and structural features, detecting different output feature maps to obtain a growth stage label and confidence information of a target crop, and identifying a growth cycle of the crop; based on an identification result, geometric registration is carried out in combination with the multispectral image, and a region-level feature fusion strategy is set for each detection region to obtain a nutrient deficiency probability of the crops; and performing target crop growth state diagnosis through the target crop growth stage label and the nutrient deficiency probability, and generating a field management suggestion. According to the invention, high-precision detection of the crop growth cycle can be realized, and a precise decision basis is provided for agricultural management.

The invention discloses plant body nutrient fatty acid calcium, belongs to the technical field of agricultural biology, and particularly relates to plant body nutrient fatty acid calcium researched and developed according to the nutritional requirement characteristics of plants in the seedling stage. The invention aims to solve the problem that plants often suffer from diseases due to insufficient nutrition in the seedling stage. The plant body nutrition fatty acid calcium is composed of glycerin, stearic acid, oleic acid, palmitic acid and linolenic acid. The invention aims to solve the problem of diseases caused by insufficient nutrition in the seedling stage of plants by supplementing core nutrient substances required by growth and development of plant bodies, promote the growth of the plants in the whole life cycle and improve the yield and quality of crops, and is suitable for cultivation and planting scenes of various crops such as rice, vegetables, beans, corn, flowers and the like.

The utility model belongs to the field of kiwi fruits, particularly relates to a stackable kiwi fruit transportation and preservation frame, and aims to solve the problems that an express package box is mostly adopted in the transportation process of the existing kiwi fruits, the kiwi fruits in the kiwi fruits are easily damaged by vibration force in the transportation process, the damage rate of the transported kiwi fruits is high, and the transportation cost is low. In order to solve the problems that in the prior art, kiwi fruits lack nutrients, taste is affected and the kiwi fruits are prone to decay, the following scheme is provided that the kiwi fruit cultivation device comprises a plurality of supporting columns, the multiple supporting columns are arranged in a rectangular array, outer arch bridges are arranged between every four adjacent supporting columns, and the same inner arch bridge is arranged between every four adjacent outer arch bridges; according to the kiwi fruit transportation and preservation device, kiwi fruits are better protected in the transportation process, the kiwi fruit transportation and preservation plates are meshed together in the vertical direction, the whole kiwi fruit transportation and preservation device is more stable, enough gaps for the kiwi fruits to breathe and the positions of adsorbents are reserved, and gas can be regulated and controlled in a targeted mode.

This invention discloses a seed coating agent and coating process for seed pelleting, belonging to the field of seed coating technology. The seed coating agent comprises components such as a superabsorbent compound, brewer's residue, and attapulgite. The superabsorbent compound is a starch-acrylic acid-acrylamide terpolymer, formed through cross-linking with a mixture of non-degradable and degradable cross-linking agents, exhibiting both high water retention and easy penetration. This coating process, involving grafting solution preparation, mixed powder preparation, and layered coating treatment, is suitable for sowing in sandy areas of northern China during the non-rainy season. It solves problems such as seed germination due to water shortage, seedling death, premature germination preventing sowing, and nutrient deficiency, effectively improving seed germination rate, seedling survival rate, and stress resistance. It is suitable for forage planting and ecological restoration.

The invention relates to the technical field of garden decoration, and particularly discloses a landscaping landscape flower stand which comprises a planting mechanism arranged on the flower stand, the planting mechanism comprises a flowerpot and a water basin, a water drainage pipe is arranged at the bottom of the water basin, a spray head and a third electric valve are arranged on the water drainage pipe, and an irrigation mechanism is further arranged on the flower stand. Soil data are collected in real time through the monitor, requirements, water shortage, nutrient shortage and acid-base imbalance are automatically judged in combination with an external control system, frequent manual inspection is not needed, and manpower input is reduced; the water storage tank is connected with an external water source through a water pipe and matched with a water level sensor and an electric valve to achieve automatic water replenishing, meanwhile, the liquid storage tank is in linkage with the water storage tank, nutrient solutions can be automatically added or liquid medicine can be automatically adjusted according to needs, stirring blades are driven by a rotating motor to be fully mixed and then accurately conveyed, errors and waste caused by manual dispensing are avoided, and the production efficiency is improved. By means of the integrated maintenance system, liquid medicine can be conveyed in time, and the problem that manual water adding and maintenance are needed during unattended operation is solved.

The present application relates to the technical field of diet analysis, in particular to a health diet analysis method based on social media data, comprising the following steps: extracting a diet label time interval, calculating interval difference normalization screening period stability label, analyzing food frequency sequence division type to generate period classification group, extracting image and index to construct intake trajectory set, calculating structure ratio to identify tilt node, and generating a list of nutrient deficiency points. In the present application, the stability recognition in the time dimension of diet information is enhanced through the period consistency determination based on social media labels, the time sequence behavior trajectory of calories and intake structure is constructed through the text keyword density extraction, the intake structure deviation point is identified in the dynamic continuous sequence and the fluctuation trend is quantified, the daily nutrient gap is evaluated in time, and the multi-period diet deviation monitoring capability and the feasibility of health risk quantitative analysis are enhanced.

This invention provides a complete nutritional food that can be used as a meal replacement, its preparation method, and its application. The food is scientifically formulated from natural ingredients and medicinal and edible homologous components, including glutinous rice flour, kudzu root powder, yam powder, wolfberry extract, jujube extract, camel milk powder, dehydrated egg flower powder, soybean flour, sea cucumber powder, ginseng powder, turtle shell powder, dried ginger extract, codonopsis extract, astragalus extract, eucommia extract, sesame oil, and salt. This complete nutritional food covers the basic nutrients required by the human body, including high-quality protein, complex carbohydrates, healthy fats, essential minerals, vitamins, dietary fiber, sodium, and various beneficial components with physiological activity, such as total polysaccharides and total flavonoids. Its nutritional structure is balanced and scientifically proportioned. Long-term consumption as a meal replacement or substitute can not only meet daily energy and nutritional needs but also avoid nutrient deficiencies or metabolic imbalances, exhibiting good safety and sustainability. Therefore, it can be used as a complete nutritional meal replacement for daily dietary substitution.

This utility model relates to an automatic feeding device for laying hen farming, belonging to the field of laying hen farming technology. It mainly includes a support frame, a feed storage bin, a feeding mechanism, a drive mechanism, and a feed trough. The bottom of the feed storage bin is connected to the feeding mechanism, which uses a feed-distributing plate and a gear and rack transmission to achieve uniform feed distribution. The drive mechanism drives the feed storage bin to move longitudinally, and a feed level sensor monitors the remaining feed in real time, precisely controlling the feeding process. This utility model, through the coordinated use of the drive mechanism, feed storage bin, and feeding mechanism, achieves an automated longitudinal feeding process, reducing human intervention and significantly improving feeding efficiency. Simultaneously, the linkage design of the feed-distributing plate and gear and rack enables uniform feed distribution in multi-stage rearing cages, avoiding insufficient or excessive feeding, effectively reducing feed waste or nutritional deficiencies, and ensuring the growth and egg production performance of the laying hens.

To provide a nutrient deficiency sensing system capable of detecting nutrient salt deficiency of seaweed in the ocean.SOLUTION: A nutrient salt deficiency sensing system 1 according to the present invention includes: an imaging unit 12 that captures an image of seaweed 10; a color information extraction unit 32 that extracts color information of a plurality of different locations from the captured image; a nutrient salt deficiency index calculation unit 38 that calculates a nutrient salt deficiency index 40 based on values of the plurality of pieces of the color information; and a display unit 42 that displays the nutrient salt deficiency index 40 on a screen. Preferably, the color information extraction unit 32 extracts at least color information of a growth point of the seaweed 10. Preferably, the nutrient salt deficiency index calculation unit 38 calculates, as the nutrient salt deficiency index 40, a difference between values of the extracted color information of the plurality of different locations. Preferably, the seaweed 10 is a large brown alga.SELECTED DRAWING: Figure 1

The invention discloses a microorganism self-induced expression system without a resistance gene marker and a construction method thereof, and belongs to the technical field of genetic engineering, the microorganism self-induced expression system comprises plasmids carrying a quorum sensing system, plasmids carrying an auxotrophication system and a chassis microorganism, the plasmids carrying the quorum sensing system comprise LuxI genes, LuxR genes, a promoter PL, a promoter PLux and pYYDT vectors, and the chassis microorganism comprises a pYYDT vector, a pYYDT vector, a pYYDT vector, a pYYDT vector, a pYYDT vector and a pYYDT vector. A plasmid carrying an auxotroph system comprises a nucleic acid sequence for coding diaminopimelic acid (dap), a PCN promoter and a pYYDT vector, a method and a tool for synthetic biology are utilized to carry out genetic modification on chassis microorganisms, the microorganisms are successfully subjected to genetic modification under the condition that the microorganisms do not depend on antibiotics and inducers, and the yield of the microorganisms is improved. Bacteria growth is carried out in the initial stage of microbial culture, when the bacterial population density reaches a certain degree, function expression is automatically switched, dynamic allocation of resources in bacteria is achieved, green and environment-friendly effects are truly achieved, and the application cost is reduced.

The application discloses a soil remediation material suitable for cucumber continuous cropping obstacles and a preparation method and a soil remediation method, relates to the technical field of cucumber planting and soil remediation, and solves the problems of physicochemical deterioration, microbial imbalance and nutrient deficiency in continuous cropping soil by combining the physicochemical improvement characteristics of functional biochar, the nutrient supply capacity of organic material and the biological regulation function of microbial inoculum.

The application discloses a method for promoting plant development and enhancing plant growth under nutrient deficiency conditions by knocking out PUKI genes of plants. The application focuses on the regulation and application of the knockout of PUKI genes of plants to the development of aerial tissues and root systems under normal and nutrient deficiency conditions. After the PUKI genes in plants are knocked out, the development of aerial tissues and root systems of the plants is superior to that of wild types. The PUKI gene deletion mutant strains have more significant advantages in the development of aerial tissues and root systems under the culture conditions of the single deficiency of nitrogen, phosphorus and potassium and the simultaneous deficiency of the three nutrient elements. The application promotes the overall growth of plants by knocking out the PUKI genes in plants, and can be applied to land barren areas, and provides a new target gene and material for the cultivation of high-quality stress-resistant crop varieties.

The invention discloses pantoea and application thereof in promoting plant growth and improving plant root architecture, and belongs to the field of agricultural microorganisms. The invention provides corn core endophytic pantoea (Pantoea sp.) AZ873 with a broad-spectrum growth promoting effect, and the corn core endophytic pantoea (Pantoea sp.) AZ873 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.32179. The corn core endophytic pantoea (Pantoea sp. The pantoea AZ873 stably exists in different environments and plants, and has broad-spectrum applicability. Experimental results show that the pantoea AZ873 can remarkably promote longitudinal extension of main roots and extension and development of lateral roots of the plants, optimize the root system configuration and improve the nutrient absorption efficiency of the plants in a nutrition deficiency stress environment, so that the overall biomass and the carbon and nitrogen content of the plants are improved, and plant growth is promoted. The invention provides a new technical means for stable optimization of crop root system functions and efficient utilization of nutrients.

The invention belongs to the technical field of microorganisms, and particularly relates to loess rhizobium and a duplex bag rhizobium inoculant adopting the loess rhizobium. The rhizobium can provide nitrogen nutrition guarantee for good growth of Astragalus mongholicus plants as a Zhongmongolian medicinal material, solves the important problem of long-term lack of nitrogen nutrition in soil, and is extremely urgent to screen and develop the rhizobium with high nitrogen fixation efficiency and high competitive nodulation efficiency. The loess rhizobium duplex bag rhizobium inoculant provided by the invention has a growth promoting effect on plants and can be inoculated at any time in the whole growth period of the plants. The preparation method and the application method are simple and easy to implement, the problem that liquid dosage forms are prepared from radix astragali rhizobium is solved, rhizobium can be inoculated at any time, the nodulation rate and the nitrogen fixation rate are increased, and therefore the yield and the quality of radix astragali are improved; the rhizobium inoculant is prepared by adopting a duplex bag method, so that the problem of low nodulation rate of the rhizobium inoculant under the condition of nutrition deficiency is solved, and on the other hand, the problem that perennial astragalus mongholicus is inoculated with the inoculant for multiple times is solved.

The utility model discloses a garden seedling raising device, which is characterized in that a seedling raising mechanism comprises a support rod, a connecting plate is fixedly mounted at the top of the inner side of the support rod, an air cylinder is fixedly mounted at the bottom of the connecting plate, a spray head is fixedly mounted at the piston end of the air cylinder, and a water tank is fixedly mounted on the left side of the support rod; and the front side of the water tank communicates with a supplementing mechanism. By arranging the supplementing mechanism, the supplementing mechanism can supplement a nutrient solution to the seedling raising mechanism at regular time, so that the effect of supplementing the nutrient solution is achieved, and the problem that seedlings become yellow due to insufficient nutrients caused by the fact that water can dilute nutrients in soil when the device is used for watering for a long time is solved; and when the seedling is serious, the seedling death is caused, and certain limitation exists.

The invention discloses a biomass soil conditioner for sandy soil remediation and a preparation method and application thereof, and belongs to the technical field of soil remediation. The problems that existing sandy soil is insufficient in nutrition, large in soil nutrition loss amount, large in water loss amount, low in soil clay particle content, low in organic matter content, difficult to form aggregates, weak in soil microbial action and the like are solved. Biomass materials are used as main raw materials, and biochar and straw materials are modified, so that formation of soil aggregates is promoted, decomposition of microorganisms on organic matters is promoted, utilization of plants on nutritional ingredients in soil is improved, and the air permeability of the soil is improved; by preparing the compound fertilizer with high nitrogen content, the fertilizer loss is reduced, the soil nutrition is improved, and the cost is reduced. Furthermore, by introducing organic carbon and organic matters, the reproduction of soil microorganisms and the growth of plants are promoted. And by introducing the water-retaining agent and the water-absorbing material, the water-holding capacity of the soil is improved.