968 results about "Rhizosphere" patented technology

The invention relates to the technical field of intelligent control, in particular to a monopotassium phosphate intelligent control method and system.The method comprises the following steps that rhizosphere phosphorus and potassium concentration changes are obtained, whether the rhizosphere phosphorus and potassium concentration changes are in a critical rate interval or not is judged, an effective absorption time period identifier is generated, and an organ amplification ratio is analyzed to judge a cooperation period; and extracting a stalk concentration ratio, comparing the stalk concentration ratio with a reference interval to generate an application inhibition identifier, fusing information to judge a fertilization window, adjusting the concentration according to the root hair amplification and the water consumption rate, and generating a control instruction set. According to the method, the effective time period of phosphorus and potassium nutrient absorption of the crops is determined through crop rhizosphere phosphorus and potassium ion concentration difference calculation and average treatment, the objective interval of crop nutrient absorption rate indexes is defined, blind fertilization is avoided, the pertinence and accuracy of nutrient absorption and utilization of the crops are enhanced, the excessive application state of nutrient elements is dynamically identified, and the crop quality is improved. The risk of excessive nutrients caused by nutrient enrichment of crops is prevented, and resource waste and environmental burden are effectively reduced.

The invention belongs to the technical field of agricultural Internet of Things, and discloses an Internet of Things-based intelligent agricultural cloud platform data acquisition and management system, which comprises the following steps of: acquiring plant rhizosphere microenvironment information, generating rhizosphere original data and performing correlation analysis to obtain rhizosphere electrochemical interaction data; collecting canopy microclimate information, and performing temperature and humidity gradient quantification processing and pore dynamic response characteristic extraction to obtain pore response characteristic data; collecting field illumination information, and carrying out multispectral distribution analysis and photoperiod sensitivity differentiation analysis to obtain a crop photoperiod sensitivity spectrum; performing multi-dimensional association fusion to generate crop physiological status comprehensive evaluation data; agricultural measure analysis and resource allocation optimization are carried out, and finally a resource allocation instruction is generated and agricultural operation scheduling is carried out; according to the invention, intelligent acquisition, analysis and management of data in each link of agricultural production are realized, and the utilization efficiency of agricultural resources and the production accuracy are improved.

The invention discloses bacillus velezensis YB-1652, a biocontrol microbial inoculum and application of the biocontrol microbial inoculum, and aims to solve the technical problem of lack of effective biological control measures for continuous accumulation of peanut phenolic acid autotoxic substances and pathogens in continuous cropping. According to the application, a bacillus velezensis YB-1652 strain is separated and screened from rhizosphere soil of continuous cropping peanuts, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.36152. The strain has the capability of efficiently degrading phenolic acid compounds, relieves continuous cropping obstacles and improves the soil environment; the compound has a relatively strong inhibition effect on southern blight and root rot of peanuts, and the occurrence rate of soil-borne diseases is reduced; meanwhile, peanut growth can be promoted; the bacillus amyloliquefaciens has siderophore, cellulase, beta-glucanase, amylase power and protease production capacity. The YB-1652 strain and the preparation thereof can provide technical support for restoration of peanut continuous cropping obstacles, provide bacterial source guarantee for prevention and treatment of peanut soil-borne diseases, replace or reduce use of chemical pesticides and improve food and ecological environment safety, and have good economic and social benefits.

The invention discloses a rhizosphere deposited carbon flux real-time monitoring method adopting a sensor array, and relates to the technical field of soil carbon cycle monitoring, and the method comprises the steps: determining a layered sampling depth and a horizontal concentric circle partition range based on the three-dimensional distribution characteristics of a target plant root system, and mapping the layered sampling depth and the horizontal concentric circle partition range to a preset three-dimensional grid coordinate system; gas sensors and environmental parameter sensors are deployed according to root system partitions, and a multi-dimensional sensor array is constructed. Through the three-dimensional grid coordinate system and the root system density gradient model, accurate spatial mapping of rhizosphere carbon flux is realized, high matching of sensor layout and root system biomass distribution is ensured by utilizing division of vertical layering and horizontal concentric circle partition, and the gas sensor and the environmental parameter sensor are cooperatively deployed, so that the reliability of the system is improved. The device can capture instantaneous changes such as root exudate pulse and microbial respiration, generates a continuous and consistent carbon flux data set, and provides a high-resolution dynamic observation basis for researching plant-soil-microbial interaction.

The invention relates to the field of intelligent irrigation, and discloses an intelligent irrigation system and method for a crop root system, and the system comprises a root zone sensing module which is used for collecting soil environment parameters through multi-mode soil sensor arrays disposed at soil layers of different depths, generating a sensing matrix, and transmitting the sensing matrix to a root zone sensing module; the sensing matrix is used for representing water potential, pH value, nutrient concentration and temperature information in each soil layer; and the root system density analysis module is connected with the root zone sensing module, and is used for constructing a root system density weight matrix based on root system space distribution information obtained by underground computed tomography, and multiplying the sensing matrix by the root system density weight matrix element by element to generate a root zone state vector. Accurate generation of regulation and control signals is achieved, the micro-fluidic execution module can adjust the irrigation flow and the fertilization proportion in real time according to the actual requirements of the root zone, and therefore it is guaranteed that the rhizosphere environment is always close to the optimal physiological interval.

The invention discloses a poplar degenerated forest stand accurate restoration method, and relates to the technical field of poplar degenerated forest stand restoration, and the method comprises the steps: obtaining a multi-temporal satellite remote sensing image and an unmanned plane multi-spectral image of a target area; in combination with soil moisture content, rhizosphere respiration rate and micrometeorological data collected by ground Internet of Things sensing nodes arranged in a forest stand, geographic coordinate registration and time sequence alignment are performed on the data to form a multi-source observation data set; the method comprises the following steps: extracting vegetation indexes, short-wave infrared reflectivity, soil moisture and rhizosphere physiological parameters based on a multi-source observation data set, constructing a degradation diagnosis index fusing spectral change, moisture stress and root activity, calculating the degradation degree of each pixel, and generating a degradation level spatial distribution diagram; the area with the degradation degree reaching a set threshold value is determined as a to-be-repaired area; and selecting representative poplar individuals in the to-be-repaired area, measuring the photosynthetic ability of the individuals, and calculating the individual competition intensity in combination with the three-dimensional point cloud data.

The invention discloses a pseudomonas synthetic flora and application thereof in prevention and treatment of apple continuous cropping obstacles, and belongs to the technical field of agricultural microorganisms. The synthetic flora is constructed from three strains of pseudomonas, i.e., alkylphenol pseudomonas, oleaginous pseudomonas and pseudomonas putida, and the biological preservation numbers of the three strains of pseudomonas are respectively as follows: alkylphenol pseudomonas S4, CGMCC (China General Microbiological Culture Collection Center) No.36078; the culture medium is characterized in that the culture medium is Pseudomonas oleovorans S38, and the culture medium is CGMCC (China General Microbiological Culture Collection Center) No.36079; pseudomonas putida S42, the preservation number of which is CGMCC (China General Microbiological Culture Collection Center) No.36080, is CGMCC No.36080. The synthetic flora has a relatively strong antagonistic effect on main pathogenic bacteria (fusarium oxysporum and fusarium solani) of apple continuous cropping obstacles, and the inhibition capability of the synthetic flora is remarkably superior to that of a single strain; field and pot experiment results show that the liquid bacterial fertilizer and the solid bacterial fertilizer of the synthetic flora can promote the growth of overground parts and underground parts of the continuous cropping apple trees; the number of harmful fungi in continuous cropping soil is obviously reduced; the root protecting enzyme activity is improved, and the MDA content is reduced; the rhizosphere micro-ecology of the continuous cropping apples is optimized, and the continuous cropping obstacles of the apples are remarkably relieved.

The invention discloses a pest control management system and method for forest tree breeding, and relates to the technical field of forest tree breeding and seedling raising, and the method comprises the following steps: collecting environment data and soil rhizosphere data by collecting multi-mode images of leaves and trunks of a pinus massoniana young forest and videos that pinus massoniana caterpillars gnaw leaves and cluster diffusion; constructing a disease and insect pest recognition model by using a convolutional neural network, performing definite diagnosis on pine wood nematode disease, pine caterpillars and monochamus alternatus hope, and quantifying the disease and insect pest occurrence area and population density of each sub-region; calculating a pine wood nematode disease control demand index, comparing the pine wood nematode disease control demand index with a threshold value, and triggering a corresponding control strategy; the diffusion coefficient of the pine caterpillars is calculated and compared with a risk threshold value, and a prevention and control scheme is formulated; calculating the propagation coefficient of the monochamus alternatus hope, judging the propagation risk and giving a prevention and control strategy; according to the invention, intelligent pest identification, risk quantification and control strategy closed-loop control are realized, treatment and scientific prevention and control are facilitated, and the pest control efficiency of the pinus massoniana young forest and the forest stand health level are improved.

The invention discloses a rapid restoration method for degraded grassland based on a microbial agent. The microbial agent is formed by compounding 15-30 parts of a nitrogen-fixing microbial agent, 10-20 parts of a phosphate-solubilizing microbial agent, 8-15 parts of a plant growth-promoting microbial agent, 25-40 parts of a humic acid carrier, 3-8 parts of an embedding agent sodium alginate and 5-12 parts of a nutritional agent molasses. Wherein the nitrogen-fixing bacteria are azotobacter chroococcum and alfalfa rhizobium (the viable count is greater than or equal to 5 * 10 < 9 > CFU / g), the phosphate solubilizing bacteria are bacillus megatherium (the viable count is greater than or equal to 1 * 10 < 10 > CFU / g), and the growth-promoting bacteria are bacillus subtilis and pseudomonas fluorescens (the viable count is greater than or equal to 2 * 10 < 10 > CFU / g). The microbial inoculum is subjected to activation, carrier adsorption, sodium alginate embedding granulation and CaCl2 cross-linking processes to be prepared into slow-release particles of 1-3 mm. 200-250 kg of organic fertilizer is applied to each hectare in a mild area, 300-400 kg of organic fertilizer is applied to each hectare in a moderate and severe area, and leymus chinensis and wheatgrass are sown in a mixed mode. After 90 days of application, the vegetation coverage is improved by 40% or above, the soil organic matter is increased by 25-40%, the microbial diversity index is larger than or equal to 3.5, and the comprehensive remediation cost is reduced by 53%.

The invention discloses an intelligent precise irrigation and nutrient regulation and control integrated system and method for rice, and particularly relates to the technical field of intelligent agriculture, and the system comprises a multi-mode sensing module, an edge computing node, an intelligent decision module, a water and fertilizer cooperative execution module and a credible monitoring module. Rice rhizosphere and leaf environment data are collected through an underground nano sensor and a canopy multispectral imaging device, data fusion and model reasoning are carried out through edge nodes, an irrigation strategy value is output in combination with a mechanism model and an AI model, and a pulse injection device is controlled to achieve precise water and fertilizer integrated operation. The system supports network disconnection operation and night model updating, and the stability and the self-adaptive capability are improved. According to the method, the environment data acquisition precision and the irrigation decision response speed are improved, the interpretability and robustness of the model are enhanced, the water resource utilization efficiency and the intelligent management level are effectively improved, and the method has wide application and popularization values.

The invention relates to the technical field of fertilizers, in particular to an environment-friendly water-soluble fertilizer containing a seaweed extract and polyglutamic acid. The water-soluble fertilizer is prepared by preparing seaweed oligosaccharide and double-grafted poly-L-gamma-sodium glutamate and compounding and complexing the seaweed oligosaccharide and the double-grafted poly-L-gamma-sodium glutamate, has the characteristics of low salting-out, high stability, no precipitation, good slow release performance and the like, and can continuously release nutrients and keep a solution clear and transparent under a low-salt condition; and because the polyglutamic acid and seaweed extract compound drip irrigation agent has the chelation and water retention characteristics of the polyglutamic acid and the natural growth promoting effect of the seaweed extract, the crop rhizosphere nutrient absorption efficiency and stress resistance are remarkably improved, the compound drip irrigation agent is suitable for drip irrigation and water and fertilizer integrated application of greenhouse vegetables, fruit trees and field crops, and the comprehensive effects of high efficiency, low salt load and environment friendliness are achieved.

The invention provides an organic carrier in-root-rhizosphere growth-promoting microbial agent for ecological restoration of degraded grassland as well as a preparation method and application of the microbial agent, and belongs to the technical field of grassland ecological restoration and microbial agents. The organic carrier growth-promoting microbial agent disclosed by the invention is prepared from four kinds of growth-promoting bacteria (PGPE) in roots, four kinds of growth-promoting bacteria (PGPR) in roots and an organic carrier, the PGPE comprises terracotta warrior bacillus K4, bacillus 9-3-1, bacillus deserticola 11-5-4 and halomonas L31, the PGPR comprises serratia rubra 5, serratia rubra 23, cosinia cosinii 11 and enterobacter parabarium 24, and the organic carrier is a carbon-based organic fertilizer, a cattle and sheep manure organic fertilizer or biochar. When the organic carrier growth-promoting microbial agent is applied to the degraded grassland, the biomass and coverage of plant communities can be remarkably improved. The organic carrier growth-promoting microbial agent can be used for ecological restoration of degraded grassland.

The invention discloses a pseudomonas for antimony detoxification and autotrophic nitrogen fixation and application of the pseudomonas. The strain is separated from the rhizosphere of a pioneer plant in antimony-polluted soil of a tin mine in cold water river city, Hunan province, and is identified to be capable of quickly oxidizing high-toxicity antimony (III) into low-toxicity antimony (V) through autotrophic metabolism in a high-antimony environment, so that antimony detoxification is realized, and the detoxification rate is 108.6 (mu mol / (L.day)). The strain has autotrophic nitrogen fixation activity and can achieve autotrophic growth under the oligotrophic condition of a mining area, and the nitrogenase activity is larger than or equal to 223.4 (nmol C2H2 / (g.h)). Particularly, the antimony detoxification and nitrogen fixation capabilities of the strain have a synergistic effect, so that the strain has unique advantages in the field of heavy metal antimony pollution remediation, and dual effects of antimony pollution treatment and soil improvement can be synchronously realized; the development and application prospects are good.

Provided are a method for controlling a soilborne disease in which a load on an environment and a human body is reduced, and a novel predatory bacterium therefor.　Provided are: a predatory bacterium or a variant thereof selected from the group consisting of bacteria of the genus Bacteriovorax and bacteria of the genus Bdellovibrio which selectively prey on a pathogenic bacterium belonging to the family Burkholderiaceae, the family Pectobacteriaceae, or the family Lysobacteraceae; a method for controlling a soilborne plant disease caused by the pathogenic bacterium, the method characterized in that the predatory bacterium or variant thereof is applied to a seed, root, or underground stem of a plant, rhizosphere soil, or soil; and a composition.

The invention discloses streptomyces sp. SK-2 and an application thereof in prevention and treatment of white cone rot. The streptomyces sp. SK-2 is separated from rhizosphere soil of cedarwood soil, the biocontrol bacterium can remarkably inhibit the occurrence area of the white cone rot disease under the indoor condition, the prevention effect reaches 68% or above, and potential development and application value is achieved.

The invention discloses a sporosarcina sp. Strain RH34 and an application of the sporosarcina sp. Strain RH34 and the application of the sporosarcina sp. Strain RH34. The sporosarcina strain RH34 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation address is No.3, yard 1, Beichen West Road, Chaoyang District, Beijing, the preservation date is December 25, 2024, and the preservation number is CGMCC NO.33199. The sporosarcina strain RH34 can be used for preparing the sporosarcina strain RH34. The alfalfa rhizosphere microorganism sporosarcina strain RH34 is separated from alfalfa roots in salinized soil, and has the functions of dissolving organic phosphorus, dissolving inorganic phosphorus, producing biological membranes, producing siderophores, producing IAA and producing ACC deaminase. Seed soaking and germination under salt stress can obviously improve the germination index of alfalfa seeds. The growth condition of alfalfa seedlings can be improved under salt stress.

The invention provides a degradable sodded strip for ecological restoration and a preparation method thereof, and belongs to the technical field of sodded strips, the degradable sodded strip comprises an upper-layer fiber web, a middle-layer seed and nutrient layer and a lower-layer grid which are sequentially laminated and compounded from top to bottom; the upper-layer fiber web is made of a hydrophilic degradable material and is used for absorbing moisture and preserving soil moisture; the middle seed and nutrient layer comprises plant seeds and a nutrient controlled release unit; the lower-layer grid is a three-dimensional grid which is made of a degradable high polymer material, has a three-dimensional communicated micropore structure and is used for mechanically guiding root growth; the nutrient controlled release unit is a microcapsule which takes a fertilizer as a core material and takes an environment response type polymer as a wall material, and the microcapsule is anchored in the fiber interweaving nodes of the lower layer grid through a cross-linking agent. According to the invention, environmental response type precise controlled release of plant rhizosphere nutrients and three-dimensional mechanical guidance of a root system growth path can be realized, and the utilization rate of the fertilizer and the survival rate and long-term stability of vegetation recovery under poor site conditions such as side slopes, river banks and mines are effectively improved.

The invention discloses a serratia marcescens strain and an application thereof. Belongs to the technical field of agricultural microorganism and heavy metal pollution control. The serratia marcescens separated from the rhizosphere of the rice is inoculated to the rhizosphere of the rice, is used for in-situ remediation of polluted soil rice planting, can be effectively colonized at the root of the rice, and has high safety. Manganese and iron ions in the soil can be adsorbed and chelated, and the formation of an iron-manganese adhesive film on the surface of a rice root is enhanced, so that the Cd element is prevented and controlled from entering plant roots and overground parts; the absorption of manganese and iron in the polluted soil can be increased, the growth of the rice is promoted, and the yield of the rice is increased. And the standard-reaching safe production of rice Cd in the moderately and mildly polluted soil is realized, and the method has a very good application prospect.

According to the high-temperature-resistant nitrogen-fixing bacteria microcapsule fertilizer and the preparation method thereof, aiming at the problems of thallus inactivation and nutrient loss in a high-temperature environment, a sodium alginate-chitosan double-layer embedding technology is combined with magnetic nanoparticle modification, and a stable double-layer structure is formed by optimizing the ratio of an embedding material, so that the high-temperature-resistant nitrogen-fixing bacteria microcapsule fertilizer is prepared. The survival rate and activity of the nitrogen-fixing bacteria at high temperature are remarkably improved, and meanwhile, the functions of intelligent nutrient release and magnetic recovery are achieved. The fertilizer is prepared from composite microcapsules, amino acid, humic acid and other raw materials according to a specific ratio through magnetic field orientation treatment, multi-stage mixing, atomization granulation and magnetic field screening processes, the particle size is controlled to be 0.5-3.35 mm, and the shelf life is prolonged to 12 months. The method has the technical effects that trehalose-glycerol / sorbitol synergistically forms a glassy protective film to maintain the stability of thalli, gamma-aminobutyric acid activates nitrogenase gene expression, magnetic nanoparticles construct a photosynthetic symbiotic system to optimize rhizosphere oxygen supply, and silanized FeO nanoparticles fix heavy metal ions through electrostatic adsorption, so that the heavy metal ions in the thalli are effectively adsorbed, and the heavy metal ions in the thalli are effectively adsorbed. And the humic acid buffers the pH fluctuation of the soil, so that the nitrogen fixation efficiency is finally improved by 30-50%, and the crop yield is increased by 15-25%.

The invention discloses a growth-promoting rhizosphere bacterium streptomyces cerevisiae QS9-7 and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of Streptomyces setonii QS9-7 is obtained through separation, and the preservation number of the Streptomyces setonii QS9-7 is CGMCC (China General Microbiological Culture Collection Center) No.32329. Experiments show that the strain QS9-7 has a relatively strong inhibition effect on various plant pathogens, and shows excellent biocontrol bacterium potential. The strain can effectively improve radicle length, germ length, lateral root number and germination rate of plant seeds and plant height and stem diameter of plant seedlings, obviously promotes plant growth, and has high application value in green prevention and control of plant diseases.

The invention relates to the technical field of soil cadmium remediation, in particular to a soil Cd recognition and remediation method based on mulberry root exudates and microorganisms. According to the method, spatial microscopic image frames of rhizosphere microflora are divided through a community structure, community node increment updating calculation of adjacent time sequences is executed, the transition recombination frequency of the rhizosphere microflora is obtained, and the transition color of the actual concentration content of root exudates is rendered based on a metal pollution level system and the transition recombination frequency. Generating a stress level heat model of the soil cadmium gradient in the target restoration area; and according to the stress level popularity model, carrying out popularity color analysis and identification on the soil cadmium pollution of the target restoration area, and generating a global stress identification result of the soil cadmium. According to the method, rapid identification of cadmium pollution enrichment can be realized by utilizing the synergistic response between mulberry root exudates and rhizosphere microorganisms, and a repair regulation and control plan is made, so that the cadmium pollution degree is reduced, the soil structure and fertility are optimized, and a safer and healthier environment is provided for plant growth.

The invention discloses a soil-vegetation collaborative ecological restoration method aiming at a shrub invaded wetland, which comprises the following steps of: performing targeted restoration on key factors of soil by designing a fish-scale pit and a composite water-retaining matrix and a layered pH regulation method, controlling the water content and the pH of the soil at a certain level, and performing vegetation reconstruction. High-leaf-area (LA) type plants, high-specific-leaf-area (SLA) type plants and deep-root-system plants are planted in a matched mode, leaf dry matter accumulation is reduced through the canopy complementary effect, and the soil nitrogen conversion efficiency is improved through rhizosphere collaborative design; and finally, the intelligent control system performs long-term monitoring and feedback regulation on the soil condition, so that the maintenance energy consumption is reduced. According to the method, long-acting recovery of the degraded wetland is realized through a closed-loop system of soil matrix improvement, vegetation function configuration and feedback maintenance.

The invention belongs to the technical field of crop pollution prevention, and particularly relates to a rice heavy metal adsorption and isolation method based on iron agent regulation and control. According to the method, the iron agent is applied to the polluted rice field soil to induce the soil-rhizosphere interface to form an iron film, heavy metals (such as As, Cu, Pb and Cd) are fixed by virtue of adsorption and complexing effects of the iron agent, and migration of the heavy metals to rice roots is reduced, so that accumulation of the heavy metals at edible parts (leaves and ears) of the rice is reduced; the tolerance of the rice in a polluted environment is enhanced; and the risk of heavy metals in a food chain is reduced. Experiments show; through treatment of an iron film formed by a certain iron-based concentration, accumulation of the heavy metals in the rice leaves can be remarkably reduced, and the accumulation amount of the heavy metals in the rice leaves is far lower than the accumulation amount (1 / 40-1 / 120) of the heavy metals in rice roots. The invention provides an effective solution for farmland soil remediation and crop safety production.

The invention relates to the technical field of heavy metal contaminated soil remediation, in particular to a plant-microorganism-passivator synergistic remediation method for a heavy metal contaminated farmland, which comprises the following steps: step 1, constructing a soil digital twinborn model; step 2, intelligent decision making and verification of a collaborative restoration scheme; 3, soil pretreatment before remediation; step 4, hierarchical collaborative restoration and dynamic regulation and control; 5, performing long-term verification on the repair effect and performing model iteration; physical heat treatment is used as strengthening pretreatment, the occurrence form of heavy metal is changed through high temperature, biomass charcoal is generated in situ, passivation immobilization-microbial strengthening-plant extraction three-stage collaborative operation is carried out according to the time sequence, pollutants are rapidly locked through a passivating agent, rhizosphere immobilization is strengthened through functional microorganisms, plant growth is promoted, and the quality of plants is improved. And the hyperaccumulator finally removes the heavy metals from the soil, so that the unification of short-term control and long-term reduction is realized.

The invention discloses bacillus orientalis ZL3 for regulating rhizosphere soil microecosystems of haloxylon ammodendron soil in deserts and promoting the growth of the haloxylon ammodendron soil, particularly relates to a fungicide ZL3 for promoting the growth of haloxylon ammodendron and regulating rhizosphere microbial communities and application of the fungicide ZL3, and belongs to the technical field of microorganisms. According to the bacillus toonensis ZL3 provided by the invention, the conversion of soil nutrients to available nutrients is improved, and the rhizosphere microbial community structure is improved, so that the effect of promoting the growth of haloxylon ammodendron is achieved. When the ZL3 is applied to a haloxylon ammodendron field, the content of soil organic matters, the content of soil quick-acting potassium, the content of available phosphorus and the activity of sucrase are remarkably improved by 37.78%, 11.01%, 49.66% and 67.71% respectively. The plant height is increased by 17.59%, and the root length is increased by 109.45%. Meanwhile, the positive change of microbial communities is regulated and controlled, especially the enrichment of beneficial bacteria, the relative abundance of the prevotella and the vibrio is remarkably increased, and the relative abundance of the burkholderia is remarkably reduced. In general, inoculation of the ZL3 fungicide can promote the growth and development of haloxylon ammodendron by improving the soil fertility and improving the rhizosphere microflora structure.

The invention relates to the technical field of fertilizers, in particular to a seaweed-containing synergistic monoammonium phosphate fertilizer as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a seaweed extract with beta-cyclodextrin, performing microencapsulation, and performing spray drying to obtain an embedded material; mixing with monoammonium phosphate and polyglutamic acid, and granulating; spraying salt-resistant compound bacteria liquid on the surfaces of the particles; and finally, coating the particles with a chitosan-sodium alginate composite film. According to the prepared synergistic monoammonium phosphate fertilizer finished product, the phosphorus utilization rate of monoammonium phosphate saline-alkali soil can be increased, the phosphorus fixation rate can be greatly reduced, the retention rate of active ingredients of the seaweed extract is greatly increased compared with that in the prior art, the rhizosphere survival rate of salt-tolerant flora is greatly increased, and the salt-tolerant flora, the seaweed extract and monoammonium phosphate cooperate to promote crop yield increase.

The invention relates to the technical field of image enhancement, in particular to a rhizosphere microflora distribution analysis method based on image enhancement, which comprises the following steps: acquiring a continuous microscopic image sequence of a rhizosphere microenvironment, converting the continuous microscopic image sequence into a gray data space, and constructing a standard input frame set for optical flow calculation. According to the method, the stability score of each feature is calculated by using the signal-to-noise ratio stability measurement function, and the long-life-cycle feature is screened and reserved, so that the random imaging noise of the short life cycle can be filtered fundamentally, and the topological structure of the target community is obtained; and mapping the topological structure back to an original image space by using an inverse persistence mapping algorithm to be fused with a continuous microscopic image sequence, and finally, remarkably enhancing weak biological signals while keeping original form details, thereby realizing high signal-to-noise ratio analysis of microflora spatial and temporal distribution in a complex rhizosphere environment.

The invention relates to the technical field of data processing, and discloses a rhizosphere soil health assessment method and system based on machine learning. The method comprises the following steps: acquiring multi-dimensional parameter data of a rhizosphere region, processing an abnormal value and calculating a comprehensive index by applying a rhizosphere time sequence median filtering method, establishing an evaluation model by combining a hybrid algorithm with an attention mechanism and fusing static and time sequence characteristics, outputting a health score and judging a state category, and finally, an optimization scheme is generated through a rhizosphere factor weight self-learning algorithm, and complete closed-loop management of dynamic evaluation and intelligent adjustment of rhizosphere soil health is realized. According to the invention, the problem that the rhizosphere microenvironment cannot be dynamically and accurately evaluated in the prior art is solved, and the accuracy and intelligent adjustment capability of rhizosphere soil health evaluation are improved.

The invention discloses a sponge city seepage and drainage structure and a sponge city water circulation system, and relates to the technical field of sponge city construction. A capillary air flotation grading pretreatment unit, a rhizosphere electro-catalysis layer and a mineral conversion filler layer are sequentially arranged below the permeable pavement layer in the rainwater permeation direction, and the drainage layer is a piezoelectric drainage layer; according to the method, blockages are subjected to capillary air flotation classification, minerals are converted into purification carriers, solid waste outward transportation is avoided, and heavy metal pollution is prevented; the water circulation end depends on photovoltaics, an external power grid is not needed, and carbon is reduced; sensor linkage adapts to a purification mode of high / low-pollution rainwater, and a straw self-cleaning function at the seepage and drainage end is prevented from being interrupted; the magnetic sensitive medium is prepared by converting blockages, outsourcing is avoided, and the cost is reduced; the ultrafine particles in the by-products assist in purification, the uleucite is used for preparing the pervious concrete, and the zeolite is used for improving the soil, so that environmental protection and resource regeneration are realized.

The invention discloses a greenhouse tomato water-saving and quality-improving planting method with cooperation of shallow-buried drip irrigation and biochar, and the method comprises the following steps: detecting greenhouse tomato planting soil, and conditioning the soil texture according to a detection result; laying a drip irrigation system on the conditioned soil, and laying a soil monitoring network; based on the established dropper system and the soil detection network, tomato seedlings are planted, and initial moisture management is carried out on the tomato seedlings after planting; after the tomatoes survive after field planting, performing staged irrigation and water and fertilizer integrated management according to the requirements of the tomatoes in different growth stages; performing charcoal rhizosphere activation and function regulation on the tomatoes in the growth period; real-time data of a greenhouse environment and a soil monitoring network are integrated, an intelligent irrigation decision model is established and operated, and a dynamic optimization irrigation scheme is implemented; and carrying out oxidation and ecological improvement on the soil after tomato harvesting. The tomato planting quality can be improved, and the soil health condition can be improved.