47 results about "Single plant" patented technology

The present application relates to the technical field of land greening data management, in particular to a land greening system data information management method, comprising: arranging an ecological perception network composed of multiple source sensors in a target administrative region to collect vegetation physiology and soil environment data; carrying out denoising, interpolation preprocessing, standardization and coordinate system conversion in a data processing center to form a standardized basic ecological data set. Based on the data set, an attribute library containing multi-dimensional information such as tree species is constructed with a single plant or a reforestation plot as the smallest management unit, a dynamic three-dimensional green volume voxel model is generated in a geographic information system to reflect the spatial distribution of land greening resources. The model is used to calculate the carbon fixation and oxygen release potential values of different functional divisions, and a planning decision engine is called to generate suggestions for replanting or reforming in low potential value areas. The method effectively improves the data information processing efficiency, calls the planning decision engine to generate land greening implementation suggestions, and quickly and dynamically updates the land greening system data information.

The utility model discloses a portable wheat single plant bagging pollination auxiliary device, including the pollination cover of ground insertion, pollination cover inside inserts the wheat of pollination, pollination cover one side is provided with the recess, recess inside fixedly has the mark card, pollination cover top side fixedly connected with the fixing frame, and the vibration block is vibratedly connected to the inboard of fixing frame, and pollination cover top and bottom all are provided with the opening, and the upper sealing piece is fixedly connected to pollination cover top opening inner wall, two groups are provided with the upper sealing piece, and the upper sealing piece is the sector structure, the opening inside inserts the collection powder hopper, the collection powder hopper is funnel shape structure, and the collection powder hopper bottom opening corresponds with the position of the wheat column head of pollination, and the upper sealing piece one end bending is pasted in the collection powder hopper outer wall, and the collection powder hopper top is provided with the bundle mouth, and the lower sealing piece is provided to pollination cover bottom opening inner wall. The device can improve the effect of pollen release, thereby guaranteeing the pollination effect, and reducing the frequency of pollination.

This invention relates to the field of agricultural breeding technology and discloses an integrated device for precise sampling and labeling of single wheat breeding materials. The device includes a feeding drive mechanism, a photoacoustic coaxial cutting and in-situ labeling module, a carrier-type collection system, a microfluidic system, and a central control system. The device utilizes high-frequency mechanical vibration to cut plant tissue, combined with cavitation effects to prevent sample contamination from the cutting edge. The cut sample falls into the carrier for sealed encapsulation and digital identification. The module pumps liquid photosensitive resin to the plant wound, and through ultrasonic-induced shear thinning and acoustic flow effects, promotes deep resin penetration. A coaxial ultraviolet beam is then output for in-situ curing, forming a peel-resistant, mechanically interlocked label patch. The main control system extracts the sample identifier, timestamp, and spectral characteristics of quantum dots within the resin, generating an encrypted hash value for persistent storage. This invention achieves high-purity, precise sampling, robust in-situ labeling, and tamper-proof multidimensional data traceability.

This invention discloses a ternary composite foaming agent of flaxseed protein-fucose-rutin, its preparation method, and its application in meringue cookies. The foaming agent is a non-covalent complex formed by flaxseed protein isolate (FPI), fucoidan (FUC), and rutin (RU) through electrostatic interactions, hydrogen bonds, and hydrophobic interactions, with a mass ratio of FPI:FUC:RU = 1:2:(0.2~0.4). This invention forms a structurally stable composite system through the non-covalent interactions of FPI, FUC, and rutin, achieving a foaming height of 95.69±8.77%. The foam retention rate after 30 minutes is more than double that of natural FPI, and the interfacial tension is reduced to below 25 mN / m, overcoming the shortcomings of poor foaming properties and insufficient stability of single plant proteins. Even after high-temperature baking, the foam retention rate remains above 75%, meeting the processing requirements of meringue cookies.

The application discloses a rice salt-tolerant seed breeding and rapid screening method, and relates to the field of seed breeding, and specifically comprises the following steps: salt-tolerant parent breeding and creation, hybridization and mutagenesis treatment, salt-tolerant rapid screening and model construction, model optimization and high-generation line identification, and salt-tolerant hybrid seed production and identification. A salt-tolerant indica or japonica light-temperature sensitive cytoplasmic male sterile line is bred as a female parent by combining the methods of hybridization, backcrossing and salt-tolerant stress directional selection. The rice salt-tolerant seed breeding and rapid screening method can expand the selection population, provide a material basis for screening strong salt-tolerant mutants, shorten the time for relying on natural variation in traditional breeding, rapidly identify and screen salt-tolerant single plants at the seedling stage and early tillering stage, and ensure that the salt-tolerant traits of the selected material can withstand the continuous test from the laboratory to the simulated field environment through directional selection and simulated environment verification.

This invention relates to the field of materials preparation technology, specifically to a plant fiber material composed of a matrix resin, plant fibers, a composite modifier, an antioxidant, and an ultraviolet absorber. The plant fibers are a single plant fiber or a mixture of at least two plant fibers. The composite modifier includes a silane coupling agent, maleic anhydride-grafted polypropylene, and calcium stearate, and may also contain nano-silica. This invention constructs a composite plant fiber system, combining the performance characteristics of different plant fibers to achieve complementary advantages. It overcomes the limitations of single plant fiber mechanical properties, significantly improving the tensile strength, bending performance, and impact toughness of the material, enabling it to adapt to more scenarios with diverse mechanical performance requirements.

This invention discloses a plant extract compound antibacterial agent and its application in feminine hygiene products. The raw materials of this plant extract compound antibacterial agent, by weight percentage, include 0.5%~5% antibacterial agent and 0.5%~30% synergistic agent; wherein the antibacterial agent is selected from Magnolia officinalis extract, and the synergistic agent is selected from at least one of Cypress twig extract and Podocarpus macrophyllus extract. This plant extract compound antibacterial agent, by combining the above-mentioned antibacterial agent and synergistic agent, can further broaden the antibacterial spectrum, compensate for the insufficient inhibitory effect of single plant extracts on specific strains, enhance the stability of active ingredients, reduce the risk of activity degradation due to pH and temperature changes during product storage and use, and distinguish itself from chemically synthesized and inorganic antibacterial agents. Its mechanism of action is gentle, inhibiting pathogenic bacteria and effectively maintaining the microecological balance of the feminine hygiene area, avoiding problems such as mucosal dryness and sensitivity caused by long-term use.

The application discloses a breeding method of a salt-tolerant multi-resistance high-quality rice restorer line. A restorer line resistant to bacterial leaf blight, rice blast and brown planthopper is used as a female parent, a strong salt-tolerant germplasm is used as a male parent, and then F2 generation is obtained after self-crossing; 0‰, 3‰ and 5‰ salt gradient stress is carried out on the F2 generation under stable salt environment conditions, single plants with low glume degeneration rate and good plant leaf type are screened, and the single plants are crossed with Yuzhenxiang; the cross progeny is identified through multi-generation salt stress, the agronomic characters, resistance and rice quality of the cross progeny are screened under a non-salt environment, and salt-tolerant, multi-resistance, high-quality and fragrance characters are aggregated; the cross progeny is verified through natural salt stress in a coastal saline field, and a salt-tolerant multi-resistance high-quality rice restorer line with a relative yield loss rate of less than 40% in a 5‰ salt concentration, resistance to bacterial leaf blight, rice blast and brown planthopper, a grain length-width ratio greater than 4.0, a chalky grain rate lower than 7.0% and fragrance is obtained. The application integrates multi-gradient salt stress identification, intergenerational cross selection and multi-character aggregation, and creates the salt-tolerant multi-resistance high-quality rice restorer line.

This invention relates to the field of plant identification technology and discloses a method for single-plant identification and stem-leaf separation based on 3D point cloud data processing technology. The method includes: acquiring multi-view 3D point cloud data of the target plant region to obtain raw point cloud data; preprocessing the raw point cloud data to obtain preprocessed point cloud data; determining the single-plant point cloud dataset based on the preprocessed point cloud data and a single-plant segmentation model; extracting features from the single-plant point cloud dataset to obtain the geometric, texture, and color features of each point cloud; determining the type of point cloud based on its geometric, texture, and color features; and obtaining the stem-leaf separation result based on the point cloud type. For plants with complex and narrow structures, this method accurately segments single plants and distinguishes stems and leaves through multiple features, improving the accuracy of separating stems and leaves from special-shaped crops.

The application discloses a high-efficiency creating method and application of a limited inflorescence retention line and a corresponding sterile line of Brassica napus, and the method comprises the following steps: crossing a Polima CMS sterile line 1658A and a limited inflorescence resource 732 to obtain F1; continuously backcrossing the F1 and an unlimited inflorescence retention line C, performing foreground selection on limited inflorescence genes Bnsdt1 / Bnsdt2 by using a codominant molecular marker in each generation, and reserving a completely sterile single plant BC3F1; giving a low-temperature treatment at a budding stage of the BC3F1 generation to induce trace pollen, continuously backcrossing, and obtaining RBC4F1 and BC4F1; and self-crossing after foreground and background selection is performed again. The application solves the problems of a long period of breeding the limited inflorescence retention line and the sterile line in the prior art, and the problem that breeding of the sterile line must wait for completion of the retention line transformation, and the problem of low efficiency, and a limited inflorescence retention line and a corresponding sterile line of Brassica napus are efficiently created.

This application discloses the application of the soybean GmHY1 gene in negatively regulating the number of seeds and / or pods per soybean plant, belonging to the field of genetic engineering technology. This application experimentally verifies that the soybean GmHY1 gene with gene ID Glyma.16G167600.1.p or its encoded protein has the function of negatively regulating the number of seeds and / or pods per soybean plant. Reducing the expression or activity of the GmHY1 gene or its encoded protein can significantly increase the number of seeds and / or pods per soybean plant, which is of great significance for breeding high-yield soybeans or increasing soybean yield.

The application discloses a high-throughput image data driven crop breeding intelligent auxiliary system and decision method, comprising: deploying a perception array, acquiring microclimate parameters and soil physical and chemical state information in a target breeding area in real time, based on real-time data flow of the perception array, dynamically adjusting shooting frequency, imaging mode and spatial coverage range of an imaging unit through an image acquisition scheduler; collecting multi-view image sequences of each plant in the target crop population, including visible light, near-infrared and thermal infrared images, performing individual plant segmentation on the image sequences, binding with identity operation, and generating a data set of spatiotemporal continuous images in units of single plants; for the data set of each plant, constructing an individualized dynamic development trajectory model, updating model parameters through online learning, reflecting the response of the plant to environmental disturbance, and detecting singular phenotypes of trajectory data output by the trajectory model to identify abnormal development events.

The application discloses a safflower oil tea fine variety breeding method and system based on function superposition, comprising the following steps: excellent single plant is cloned by high pole grafting technology, and a specific germplasm resource library is established; three types of phenotype data of leaf shape character set, oil yield character set and oil quality character set are measured; six types of application scenarios such as edible oil production raw material forest and specific natural compound production raw material forest are preset, a hierarchical weight distribution method is adopted to construct a comprehensive evaluation model, first-level weights are distributed to the three types of character sets, and second-level weights are distributed to the characters in the subsets; binary comparison method is adopted to standardize the leaf shape characters, and percentage system is adopted to standardize the oil yield characters and the oil quality characters; and target fine varieties are screened according to the comparison result of the comprehensive scores of the varieties to be evaluated and the average scores of existing fine varieties. The application realizes superposition breeding of ornamental, oil production and oil quality functions, and improves the adaptability of fine varieties and industrial scenarios.

This invention relates to a demasking robot and its control method for field wheat hybridization breeding. The wheat demasking robot includes a walking cart, a wheat ear clamping device, and a demasking and hull-pruning device. Based on a binocular depth camera and a wheat ear detection algorithm, robust mother plant ears are selected, and a second robotic arm and the wheat ear clamping device are controlled to complete the clamping operation. The depth camera acquires image information of the wheat ears, and a spikelet instance segmentation algorithm identifies the outline of the spikelets in the area to be hulled and locates the hull-pruning position. The main control system controls the second robotic arm and the hull-pruning mechanism to perform the hull-pruning operation. The stamen detection algorithm locates the stamen position, and the main control system controls the demasking mechanism to automate the demasking operation. After the operation on a single plant is completed, all executing components are immersed in a disinfection box for disinfection to avoid cross-contamination. The entire field wheat demasking robot automates the mother plant selection, hull-pruning, and demasking processes in wheat hybridization breeding, improving breeding accuracy and efficiency, and providing technical support for large-scale wheat breeding.

The application discloses a soybean single plant weight prediction method and system based on image segmentation and deep learning, and the system comprises a motion system, an image acquisition visual system, an image processing system and a weight prediction system, the motion system is used for controlling the system to move reasonably in a soybean field; the image acquisition visual system shoots single soybean plant samples in the field through a camera and transmits the samples to the image processing system; the image processing system performs pretreatment on soybean plant images and performs pod and main stem branch labeling, performs segmentation processing on the soybean plant images through a deep learning model to identify the number and types of pods, acquire the number of soybean grains on the main stem, and acquire the length and surface area of the main stem and branches; and the weight prediction system takes the number of pods, the number of soybean grains, the surface area of the main stem and branches as input features based on a trained integrated learning prediction model to predict the total weight of soybean grains of the soybean plant. The application provides valuable insights for soybean breeding and planting optimization through an automatic soybean phenotype feature extraction and yield prediction method, and opens up a new technical approach for crop phenomics research.

This invention discloses a method for synergistic improvement of wheat quality and disease resistance based on the creation and utilization of the T1DL.1VS translocation line. Addressing the problem of low breeding efficiency caused by the dispersion of disease resistance and quality genes, this invention creates a novel T1DL.1VS translocation line that aggregates Pm67 / Glu-V1 by crossing the T1DL.1V#4S translocation line NAU195 carrying Glu-V1 with the T1DL.1V#5S translocation line NAU196 carrying Pm67. Recombinant single plants are screened in the F2 generation. Furthermore, utilizing the co-segregation characteristic of this translocation line with the wax repressor gene IW-V1, a dual-marker selection system combining morphological markers and the NAU1VS-1 molecular marker is established and introduced into a high-yielding variety background. This translocation line has no significant negative effect on yield traits, and the newly bred lines exhibit high resistance to powdery mildew and significantly improved bread processing quality, achieving synergistic and efficient improvement of wheat disease resistance and processing quality.

The application discloses a kind of to improve agarwood tetrol content's odd Nan multi-generation grafting cultivation method, belong to plant breeding and cultivation technical field.The application aims at solving the existing odd Nan agarwood agarwood tetrol content is far lower than pharmacopoeia standard, cannot satisfy medicinal demand, and the existing grafting technology breeding goal is single, does not form the problem of directional breeding system.The application carries out grafting with agarwood tree species as rootstock and odd Nan branch as scion, after cultivation management, induces to be fragrant, with agarwood tetrol content as core index to screen excellent single plant, then with excellent plant branch as scion repeats multi-generation cycle cultivation, finally obtains the odd Nan strain with high agarwood tetrol content.The application can realize the stable promotion of agarwood tetrol content generation by generation, retain the core advantage of odd Nan rapid fragrant formation simultaneously, is suitable for the large-scale directional cultivation of odd Nan medicinal variety.

The present application relates to rubber tree seedling breeding field, specifically to a kind of in rubber tree seedling high-efficiency rapid selection high-yield single plant method, comprising the following steps: S1: 2 age rubber tree seedling is sawed, according to the amount of latex flowing out of horizontal sawing surface, preliminary selection is carried out, and preliminary selection seedling is selected;S2: preliminary selection seedling is continued to cultivate 24-48 hours, and on the basis of horizontal sawing surface, continue to cut off 0.2-0.4 cm, according to the amount of latex flowing out of horizontal sawing surface, reselecting is carried out, and reselected seedling is selected;S3: reselected seedling is continued to cultivate 24-48 hours, and on the basis of horizontal sawing surface, continue to cut off 0.2-0.4 cm, according to the amount of latex flowing out of horizontal sawing surface, approval selection is carried out, and approved seedling is obtained;S4: approved seedling is continued to cultivate 20-30 days, and latex is collected for detection, according to the sucrose content of obtained latex, final selection is carried out, and high-yield single plant is obtained.The present application method can be screened at 2-3 age in seedling stage, and the method steps are simple, low in cost, high in screening accuracy.

The application discloses a transcription factor VTP1 regulation stem vascular development and application in improving rape yield, and belongs to the technical field of plant genetic engineering. The application first finds that after overexpression of VTP1, the rape stem diameter and stem vascular bundle number can be significantly increased, and the single plant yield, thousand kernel weight and seed oil content of rape are also significantly improved. Molecular mechanism research finds that VTP1 can directly interact with stem cell development star transcription factor WOX4 to form a molecular regulation module, and then promote the stem vascular tissue development of rape. The application provides the application and corresponding breeding technology of VTP1 in vascular engineering design and rape breeding, and provides a new key target and practical technical scheme for molecular design breeding of high-yield rape, and has important scientific theoretical significance and breeding application value.

This invention discloses a vertical integrated machine for purifying, processing, and packaging bok choy based on computer vision, belonging to the field of intelligent equipment for fruit and vegetable processing. It solves the problems of high cost, low precision, easy spoilage, and insufficient automation in existing leafy vegetable pretreatment methods. The machine has a vertical four-layer integrated structure, including a motion execution system, a control system, and a vision perception system. The motion execution system integrates flexible grippers, gears and racks, a flap door, brushes, and a packaging mechanism. Through vertical gravity transport, it sequentially completes root cutting, brush cleaning, identification and removal of rotten and yellowed leaves, and unsealed air-blown bagging. The vision system uses a Raspberry Pi 5 equipped with a lightweight YOLOv8 model and a Picamera camera to achieve accurate identification of rotten and yellowed leaves. The control system has a built-in automatic startup program. This invention features a compact structure, low cost, and low energy consumption, with a single plant processing time of ≤10 seconds, making it suitable for small-scale fruit and vegetable processing workshops and farmers' markets.

This invention discloses a rapid rice breeding method and its application based on a dominant extremely early-maturing gene. Using the dominant extremely early-maturing gene as the core, early-maturing single plants are selected as a backcross breeding bridge tool through maturity trait screening. The method includes: hybridizing rice materials carrying the target beneficial gene and rice materials carrying the extremely early-maturing gene as parents; obtaining an early-maturing bridge plant carrying the target beneficial gene through embryo culture, molecular marker screening, and maturity trait screening; using this early-maturing bridge plant as the male parent and continuously backcrossing it with the rice to be improved, conducting embryo culture, molecular marker screening, and maturity trait screening in each generation, compressing the single-generation backcross cycle to 60-76 days; self-purifying the last backcross generation, and obtaining improved lines through homozygous screening of the target beneficial gene, genetic background verification, and early-maturing trait removal. This invention utilizes the extremely early-maturing gene to accelerate generation iteration, enabling 4-5 generations of rice propagation per year, completing 3-4 backcrosses and 2 selfcrosses within 1.5 years, and can be applied on a large scale to improve multiple traits of rice.

The present application relates to the field of wheat image analysis, and specifically discloses a kind of wintering period wheat seedling distinguishing method based on remote sensing image data, for solving the existing wintering period winter wheat seedling identification method more depends on artificial investigation or single color, vegetation index threshold, difficult to fuse multidimensional key parameters, and easily be disturbed by shadow, bare soil and frost residue, leading to strong and weak seedling recognition unstable, partition is not continuous, risk positioning is not accurate Problem, including sample plot layout and remote sensing data acquisition, remote sensing image radiation geometry correction and pixel level registration, vegetation mask extraction and single plant object segmentation, single plant multidimensional characterization extraction and strong seedling potential value construction and sample plot statistical classification and global extrapolation output;The present application constructs seedling potential value and classifies extrapolation by multi-source remote sensing single plant segmentation and C, V, H, L, B fusion, and stably outputs global strong seedling partition and vigorous seedling partition, weak seedling risk area.

This invention relates to a method, electronic device, and storage medium for extracting the growth period of sparsely planted fruit trees, belonging to the field of image classification technology. To solve the problem of accurate classification of fruit tree growth periods, this invention uses a semantic segmentation model to predict the canopy vector surface f0 of all sparsely planted fruit trees from UAV images p0. Error correction and period attribute assignment are performed on f0 to obtain growth period labels f. Texture feature calculation is performed on p0, and the ReliefF algorithm is applied to select texture features by weight sorting. The selected texture features are added to p0 to obtain the growth period image p. f and p are paired to form a label image pair. A BDSSNet classification model for fruit tree growth periods is constructed. The label image pair is input into BDSSNet for training to obtain the fruit tree growth period classification model. The newly predicted canopy vector surface of the target area is used to classify the growth period of sparsely planted fruit trees. This invention accurately identifies the growth period status of individual fruit trees in orchards.

The application discloses a rice mutant gene and a method for identifying the same. Compared with the OsNRAMP5 gene sequence of the genome of Shu Hui 498 indica rice, the rice OsNRAMP5 mutant gene has a base A deletion mutation at a position of +1083 downstream of an initiation codon ATG. The application creatively proposes that a population is grouped first, high-throughput targeted sequencing of seed endosperm mixed DNA is used to carry out grouping screening of OsNRAMP5 gene variants, and then only seeds of a variant group with the mixed sample DNA of the variant with the highest mutation possibility are sowed to grow into seedlings, and subsequently, single plants carrying the corresponding variant in the variant group are screened and identified. The technology can greatly save time, land, reagent and other costs, and improve screening efficiency and land utilization efficiency. The method has high efficiency, good accuracy and simple operation, can better realize high-throughput, low cost and operation convenience, and is suitable for popularization and application.

This invention discloses a non-destructive method for detecting protein content in common bean seeds based on hyperspectral imaging, relating to the field of non-destructive testing of agricultural products. It addresses the problems of traditional detection methods being highly destructive, cumbersome, and inefficient, as well as the redundancy, inaccurate feature extraction, and poor model adaptability of existing hyperspectral detection technologies. The invention includes: screening standardized common bean seeds; acquiring hyperspectral data; extracting the average spectrum of the samples using image preprocessing and spectral extraction techniques; eliminating redundant bands using EDA analysis; extracting relevant features using any one of the SFE, PLS-VIP+Pearson+p-value, or KNN-MI schemes; and constructing and selecting the optimal prediction model. This invention can be applied to the screening of high-protein single plants in common bean breeding, automated grading of common bean seed quality, or, after parameter adjustment, to the non-destructive detection of protein content in seeds of other edible legume crops such as peas, chickpeas, and cowpeas, and the tested seeds can be sown normally.

This application relates to the field of smart agriculture technology and discloses an intelligent screening system for young fruits that integrates agronomic knowledge and spatial constraints. By deeply integrating agronomic prior knowledge and three-dimensional spatial topological constraints, this invention significantly improves resistance to target occlusion and dynamic deformation interference in unstructured orchard habitats. The system not only achieves precise reshaping of the geometric shape of young fruits, but also simulates the competition and allocation logic of nutrient resources within the plant by constructing a biologically meaningful whole-plant topological network. This allows fruit thinning operations to no longer blindly rely on the surface size of the fruit, but to perform scientific screening based on the single plant's load limit and growth potential. It can not only effectively ensure the uniformity of fruit size and the stability of fruit yield, but also significantly reduce labor costs, providing a technical closed loop for the standardized management and precision operation of smart orchards.

This invention relates to the field of crop breeding technology, and in particular to a high-efficiency seed production method for greenhouse asparagus based on bumblebee pollination. Specifically, it includes: early and accurate identification of male and female plants using STS molecular markers during the seedling stage; scientifically matching male and female parents in a specific ratio and synchronously controlling their flowering periods; constructing a dedicated pollination net chamber with escape-proof buffer doors and microclimate fine-tuning design; implementing bumblebee-friendly green pest and disease prevention measures before flowering; and introducing bumblebees at a specific density for fully enclosed, high-efficiency pollination. This invention effectively overcomes the technical difficulties of high cost and low efficiency of traditional artificial pollination, as well as the problems of inconsistent flowering periods and heat stress on pollinating insects under conventional greenhouse conditions. Using the standardized breeding system of "molecular identification + spatial microenvironment + dedicated insect pollinator" constructed by this invention, the fresh fruit weight of a single plant can reach 300 grams, and the dry seed weight of a single plant can reach 56.2 grams. This not only eliminates interference from foreign pollen at the source, ensuring 100% purity, but also significantly increases the yield of hybrid seeds.

The application discloses a layered seedling raising box convenient for seedling lifting, relates to the technical field of seedling raising devices, and solves the technical problems of complicated seedling lifting operation, low efficiency and poor seedling transfer connection, and comprises a box body, a mounting frame in the box body, seedling raising trays on the mounting frame, seedling raising boxes in the seedling raising trays, a plurality of seedling raising holes on the seedling raising boxes, inner cavity boxes mounted in the seedling raising holes, the inner cavity boxes being composed of a plurality of clamping blocks, the clamping blocks being connected by a plurality of elastic ropes, a top block in the seedling raising hole, a top column at the bottom of the inner cavity box, a sliding rod mounted on the inner cavity box, a limiting plate mounted outside the sliding rod, a limiting groove at the bottom of the limiting plate, and the sliding rod sliding in the limiting groove. The application realizes automatic expansion and contraction of the inner cavity boxes in the lifting process through the top block, the elastic rope and the inner cavity box and the like, can synchronously lift the whole row or the whole column of the inner cavity boxes, realizes an important leap from single plant operation to batch seedling lifting, and greatly improves the seedling lifting efficiency.