111 results about "Rice root" patented technology

The invention discloses a rice root bud tracking method and system based on two-stage segmentation and topological feature fusion, and the method comprises the steps: firstly collecting a plurality of frames of seed images, then obtaining a seed individual through instance segmentation, obtaining a root, a bud and a main body of the seed individual through semantic segmentation, and then achieving the tracking of the seed main body through topological graph matching. The radical bud and the main body belong to the same individual in the image, so that the radical bud tracking is synchronously realized. According to the invention, automatic and accurate monitoring of the growth dynamic state of the root bud of the single seed in a dense scene is realized, and reliable technical support is provided for dynamic monitoring of the rice germination form.

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 discloses a rice whole growth period growth dynamic monitoring system based on multi-source sensing fusion, and relates to the field of agricultural intellectualization, and the system comprises an acquisition module which is used for taking a rice root development core area as a target, adaptively arranging a multi-dimensional sensing array and dynamically adjusting the operation frequency of the array, continuously collecting root system microenvironment and morphological characteristic original data; the preprocessing module is used for receiving the original data acquired by the acquisition module, performing space-time alignment and noise filtering on the root system microenvironment and morphological feature sensing data, and synchronously extracting core data dimensions for driving development analysis through a feature enhancement algorithm; by comprehensively evaluating the generated growth potential and yield potential report, the rice growth state is comprehensively reflected, a planter is assisted to intervene abnormal conditions in advance, the growth stress loss is reduced, and a scientific basis is provided for accurate regulation and control, so that the fine management level and yield potential of rice planting are improved.

The invention discloses an application of an OsSPL14 gene and a protein coded by the OsSPL14 gene in regulating and controlling the diameter of a plant root system, and belongs to the technical field of gene engineering. The technical problem to be solved by the invention is how to regulate and control the root diameter of a plant. In order to solve the technical problem, the invention provides application of the protein or a substance for regulating and controlling the expression of a protein coding gene or a substance for regulating and controlling the activity or content of the protein in regulating and controlling the diameter of a plant root system. The protein has an amino acid sequence of sequence 2. The invention discloses that OsSPL14 is an important gene for regulating and controlling the diameter of the rice root for the first time. The expression of the OsSPL14 is driven by using a specific promoter, so that the regulation effect of the OsSPL14 in a rice root system can be specifically exerted, and the diameter of the adventitious root of the rice is increased. The OsSPL14 provided by the invention has important significance in cultivating a new rice variety with high and stable yield, high quality and good stress resistance.

The invention discloses a soil-plant carbon element tracking method and system based on isotope labeling, particularly relates to the technical field of soil carbon cycle in-situ detection, and is used for solving the technical problem that a carbon migration path in a rice rhizosphere heterogeneous micro region cannot be distinguished in the prior art. The method comprises the following steps: arranging a spatial coding microprobe array on a rice root system and a soil interface of a rice field, synchronously applying a C13 labeled compound, and continuously obtaining a grid node oxidation-reduction potential and a carbon isotope abundance value; dividing the boundary of a root surface oxidation layer and an anaerobic layer based on day and night oscillation phase difference mutation; detecting peak displacement migration from carbonyl bonds to carbon-carbon bonds in a boundary transition region by adopting an in-situ Raman spectrum, and correcting a space boundary; partitioning and clustering carbon isotope abundance values according to the corrected boundary, and identifying hot spot boundaries of a root tip secretion active region, a microorganism enrichment region and a mineral binding region; calculating the carbon isotope flux gradient in each region and generating a spatial distribution map; in-situ analysis of a rhizosphere carbon migration path is realized, and rice field carbon cycle research precision is improved.

The invention provides bacillus mycoides Y2 with functions of reducing cadmium content of crops and promoting growth and application of the bacillus mycoides Y2, and relates to the technical field of soil heavy metal pollution bioremediation and agricultural microorganism application. The bacillus mycoides Y2 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on July 14, 2025, and the preservation number is CGMCC 35231. The strain can be applied to cadmium-polluted soil through root application, can reduce the cadmium content of edible parts of crops such as rice, oilseed rape and fast vegetables, and promotes crop growth and rice root surface iron plaque formation. The contaminated soil in Hunan, Henan and Tianjin is verified to be capable of stably colonizing and adapting to different soils and crops. The strain and the matched preparation are green, efficient, high in stability and wide in universality, and provide key technical support for safe utilization of cadmium-polluted cultivated land.

The invention relates to the field of rice seedling raising cultivation, and discloses a preparation method of a pest-resistant orderly-released rice seedling raising substrate, which comprises the following steps: (a) preparing a composite microcapsule which comprises a functional microorganism core and an intelligent response type shell coating the functional microorganism core; wherein a compound microbial flora and a quorum sensing signal precursor are loaded in the functionalized microbial core; the intelligent response type shell contains a plant immunity inducer, and the material of the shell is set to be degraded under the action of rice root exudates. By designing a composite microcapsule structure, programmed and targeted release of active substances is realized, so that a plant immunity inducer acts in advance in the early stage of seedling raising, and a composite microbial flora is accurately released to a rhizosphere area only when a rice root system is in contact with the microcapsule, so that the effect of raising seedlings is achieved. And the utilization efficiency and the action accuracy of each functional component are obviously improved.

The invention relates to the technical field of biology, in particular to application of a rice OsGH17 gene in regulation and control of a rice root system. The regulation of the rice root system is to promote the development of the rice root system or inhibit the development of the rice root system. At present, no literature report about application of the rice OsGH17 gene to regulation and control of rice root systems is found. The invention shows that the OsGH17 gene deletion can promote the development of the rice root system, and the OsGH17 gene overexpression can inhibit the development of the rice root system. The regulation characteristic of the OsGH17 gene on the influence of the rice root system is defined, and an important reference is provided for deeply researching the function and action mechanism of the glucoside hydrolase in the plant in the rice.

The invention provides a strain of Princisteria sp. ZJUHULYT1 and application thereof in prevention and treatment of Meloidogyne miscaceae, and belongs to the technical field of biological prevention and treatment of Meloidogyne miscaceae, the Princisteria sp. ZJUHULYT1 is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20251173. The invention further provides a preparation method of the Princisteria sp. ZJUHULYT1 and application of the Princisteria sp. ZJUHULYT1. Although the Princisteria sp. ZJUHULYT1 disclosed by the invention has no direct lethal effect on the gramineous meloidogyne, when the Princisteria sp. ZJUHULYT1 acts on the roots of rice, the number of rice root knots can be remarkably reduced, and invasion of the gramineous meloidogyne can be remarkably inhibited. According to the present invention, the rice root system can be promoted to defend the synthesis of related hormones, the content of 12-oxo-plant dienoic acid (OPDA) and abscisic acid (ABA) in the rice root system can be increased, and the effect of inhibiting the infection of Gramineae Meloidogyne by increasing the hormone content of the rice root can be achieved.

The invention belongs to the technical field of rice seedling raising devices, and particularly discloses a cadmium-reducing rice seedling raising device, which comprises a seedling raising tray, a plurality of seedling raising grids and a plurality of seedling raising trays, the bottom plate is detachably connected to the bottom of the seedling raising plate, and a plurality of water inlet holes are evenly formed in the positions, right opposite to the seedling raising grids, of the bottom plate. And the dredging device comprises a base, an inserting rod and a liquid pressing assembly, the base is horizontally arranged at the bottom of the bottom plate, and a plurality of supporting assemblies are symmetrically arranged between the edge position of the top of the base and the bottom plate. By arranging the dredging device, when a rice root system or a culture medium in the seedling raising plate blocks the water inlet holes of the bottom plate, a worker can press the seedling raising plate downwards, at the moment, the insertion rods can be accurately inserted into the corresponding water inlet holes, blockages are removed through the physical insertion effect, and the water passing and ventilation functions of the water inlet holes are rapidly recovered; the rice root system is always in an aerobic environment, the root rotting phenomenon is effectively reduced, and the seedling survival rate is improved.

The utility model relates to the technical field of observation devices, in particular to a rice root growth observation device which comprises a planting box and a water tank. The lower end of the planting box communicates with a water tank. According to the utility model, the adjusting plate is inserted into rice for hydroponic planting, so that the root system of the rice is completely exposed in a culture solution and is protected from being blocked and extruded by soil particles, branches, root hair forms and growth directions of the root system can be clearly observed by combining with the transparent window, and subsequent image acquisition by an optical imaging head is facilitated; subsequent analysis and research are facilitated, and the accuracy of image acquisition is improved; when the rice root system is planted and observed through the rolling plate, sunlight can be adjusted to penetrate through the transparent window, the influence of long-time illumination on the root system is avoided, the root system can grow under the appropriate illumination condition, and the experiment accuracy is improved.

The invention discloses a strain of parateratomycosis aveosphaeroides and application thereof, and belongs to the technical field of microorganism and biological prevention and control. In order to screen new species of fungi and provide alternative strains for application of plant beneficial bacteria in agriculture, a fungus SGSF1293 is separated, and the fungus SGSF1293 is identified to be a new species of the cystis clavatum and is named as the parateratosis aveoensis, and the new species of the cystis clavatum is named as the parateratosis aveoensis. According to the present invention, the activity research results show that the strain SGSF1293 has rice root-knot nematode killing activity, plant pathogen resistance (Brassica oleracea black rot xanthomonas, Pseudomonas syringae, Ralstonia solanacearum and Fusarium oxysporum) resistance, oxidation resistance and phosphorus solubilizing activity; besides, the secondary metabolite of the strain is separated and identified, two active compounds, namely, wintergreen ambrotic acid and brefeldin A, are separated, and the wintergreen ambrotic acid has the activity of killing rice root-knot nematode. The discovery of the strain SGSF1293 and the active metabolite thereof has certain application value in the agricultural fields of plant disease control and the like.

The application discloses application of a rice metal tolerance protein coding gene OsMTP7 The rice metal tolerance protein coding gene OsMTP7 has the accession number of AK241225.1 in Genbank. The gene coding protein has zinc transport activity, can increase the zinc content of rice root system and above-ground part, and significantly increases the accumulation of zinc in rice grains.

The present invention discloses an energized device and method for establishing a rice nano-silicon defense barrier before transplanting. When using the device, the rice roots can be immersed in an energized nutrient solution containing nano-silicon before transplanting, and a silicon barrier can be formed at the roots after 30 minutes. The present invention significantly improves the growth of rice under heavy metal stress and inhibits the absorption of heavy metals in the aboveground part. In a 5-day stress experiment, the effect of electrically stimulated nano-silicon polymerization was better than that of traditional matrix-applied nano-silicon. In addition, transcriptional analysis further revealed that the gene regulatory effect of electrically stimulated nano-silicon was significantly different from that of simple electrical stimulation. The present invention provides a convenient treatment method for improving the stress resistance of rice before transplanting.

The invention discloses a compound fertilizer containing traditional Chinese medicine components and application of the compound fertilizer in prevention and treatment of rice sheath blight disease, and belongs to the technical field of fertilizer preparation. The compound fertilizer containing the traditional Chinese medicine components is prepared from the following raw materials in parts by mass: 3 to 5 parts of radix puerariae, 4 to 6 parts of onion, 2 to 3 parts of herba menthae, 2 to 3 parts of flos chrysanthemi indici, 20 to 30 parts of humic acid, 1 to 1.5 parts of compound amino acid, 2 to 3 parts of microbial agent, 12 to 15 parts of soybean meal, 5 to 8 parts of silicon fertilizer, 10 to 15 parts of phosphate fertilizer and 30 to 40 parts of straw fermentation product. The compound fertilizer containing the traditional Chinese medicine components can effectively prevent and treat rice sheath blight disease, stimulate rice growth, improve rice seedling quality, develop rice root systems and improve rice tillering amount, thereby improving disease resistance and yield of rice.

The invention discloses a gene OsARF1 for regulating and controlling the ability of a rice root system to penetrate through hard soil and application of the gene OsARF1. The amino acid sequence coded by the gene OsARF1 is as shown in SEQ ID No. 2. The nucleotide sequence of the gene OsARF1 is as shown in SEQ ID No. 1 (sequence identifier number 1). According to the invention, the OsARF1 gene is over-expressed in rice, so that the expression level of the OsARF1 gene in a rice variety is improved, and then a rice strain with enhanced root penetrating power in hard soil is obtained. The expression of the OsARF1 gene is up-regulated under the condition of hard soil, the expression of the downstream OsCESA6 gene is inhibited, the cellulose synthesis and cell wall thickening of a cortical cell wall are reduced, the thickening of a root system is promoted, and the ability of the root system penetrating through the hard soil is improved. The application of the invention can be used for cultivating a new rice variety suitable for growing in hard soil, and has important significance for improving rice planting under poor soil conditions such as saline-alkali soil.

The invention discloses a nano zeolite coupled biomass charcoal-based slow release fertilizer suitable for acidic rice soil, a preparation method and application, and aims to solve the problems of low pH value, high methane emission flux, low nutrient utilization rate and the like of the acidic rice soil. By constructing a nano zeolite-biomass charcoal-slow release fertilizer-silicon fertilizer synergistic regulation system, the stability of organic carbon in soil and the slow release capacity of nutrients are improved by utilizing a composite material formed by embedding nano zeolite into pores of biomass charcoal; the alkalinity and physiological functions of the silicon fertilizer are used for improving the soil pH and the oxygen secreting capacity of the rice root system, and cooperative emission reduction is achieved through the two paths of inhibiting methane generation and promoting methane oxidation. Field test results show that the pH value of acidic rice soil can be increased by 0.5-1.5 units in a rice growing season, the accumulated emission of methane is reduced by 27%-40%, and the rice yield is increased by 12%-20%. The invention has the advantages of easily available raw materials, simple process, good operability and the like, and can realize the synergistic effect of acid soil improvement, carbon sequestration and emission reduction and crop yield and efficiency increase.

The application provides a strain of Rhodococcus ZJUHULJT1 and application of the strain in prevention and treatment of paratyphaceae root-knot nematodes, and belongs to the technical field of biological prevention and treatment of root-knot nematodes. Rhodococcus The Rhodococcus (sp.) ZJUHULJT1 is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20251182; the Rhodococcus ZJUHULJT1 can significantly inhibit the infection and reproduction of root-knot nematodes, reduce the number of rice root knots, promote the synthesis of defense-related hormones of rice roots, and improve the disease resistance of rice; through the multiple inhibition of paratyphaceae root-knot nematodes, the Rhodococcus ZJUHULJT1 can be applied to the prevention and treatment of rice root-knot nematodes, has good prevention and treatment effect, and provides a new technical means for the pollution-free reduction of paratyphaceae root-knot nematode diseases.

The invention relates to the technical field of rice stress-resistant cultivation, and discloses a rice root system salt tolerance adjusting method based on exogenous spermidine, which comprises the following core steps: in the critical period of rice root system development, directionally applying a spermidine solution subjected to purity verification to a rice root system area, by accurately regulating and controlling the application concentration, frequency, duration and application environment conditions of spermidine, the osmotic regulation capability and the anti-oxidation system function of a rice root system in a high-salt environment with the soil conductivity larger than or equal to 2 dS / m are improved, the salt tolerance of the root system is remarkably improved, and then growth and development of rice are guaranteed. The spermidine is a straight-chain polyamine compound with good biocompatibility, the chemical purity is not lower than 98%, no heavy metal is left, and the contents of lead, cadmium and mercury are all smaller than or equal to 0.1 mg / kg. According to the invention, precise targeted regulation and control of the salt tolerance of the rice root system are realized, and the regulation effect is stable and remarkable.

The present application relates to the field of plant growth and development molecular biology, and particularly relates to a gene OsARF14b and application thereof in controlling rice root elongation and tillering, the gene OsARF14b has the nucleotide sequence shown in SEQ ID NO:1, and the application of the gene OsARF14b in regulating rice root elongation and tillering traits.The present application obtains overexpression and knockout transgenic materials by cloning the gene OsARF14b, constructing a transgenic vector, and statistically analyzing the phenotype of the transgenic materials, and finds that the root length and tiller number in different materials change significantly, compared with the wild type (Zhonghua 11, ZH11), the root length of the knockout transgenic material (cas9) is significantly shortened, and the tiller number is significantly increased, the root length of the overexpression material (OE) is lengthened, and the tiller number is significantly reduced, which indicates that the OsARF14b gene plays an important regulatory function in the process of plant root elongation and tillering.

The invention provides bacillus ZJUHUSRH1 and application thereof in prevention and control of pseudocereal meloidogyne, and belongs to the technical field of biological prevention and control of meloidogyne, the bacillus ZJUHUSRH1 is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC NO: M 20251183, the preservation number is CCTCC NO: M 20251183, and the preservation number is CCTCC NO: M 20251183. The bacillus ZJUHUSRH1 has a remarkable prevention and treatment effect on rice pseudocereal meloidogyne in soil and can effectively prevent and treat infection and reproduction of the rice meloidogyne; meanwhile, the bacillus ZJUHUSRH1 can increase the hormone content of the rice root by activating a salicylic acid synthesis pathway, so that the effect of inhibiting invasion of the pseudocereal meloidogyne is achieved.

This invention provides a non-destructive detection method for rice tillering angle based on YOLO11, with the following steps: (1) Input a frontal image of rice in the tillering stage acquired under natural light; (2) Perform light homogenization processing on the input image; (3) Construct and train a rice tillering key point detection model based on YOLO11-Pose; (4) Detect tillering key points using the trained YOLO11-Pose detection model and form two tillering feature lines; (5) Calculate the angle between the two tillering feature lines, which is the rice tillering angle, and visualize the tillering angle. The YOLO11-Pose detection model construction process includes training data acquisition and preprocessing, model architecture construction, training parameter setting, model training, and model validation. This invention relates to a non-destructive testing method for rice tillering angle based on YOLO11. This method does not damage the original rice root and stem angle during the measurement process and can complete non-contact tillering angle measurement under different lighting conditions, thereby improving the efficiency of tillering angle measurement.

The application of Microbispora longispora in simultaneously enhancing the lodging resistance and tillering ability of rice belongs to the field of biological bacterial manure and rice planting technology. In order to solve the technical problems that the existing technology lacks an effective microbial technical solution capable of simultaneously solving the requirements of'strong stem' and 'tillering' of rice, the seed soaking and inoculation method cannot be compatible with the conventional seed treatment of bactericidal agents, the effective period is short, and the application effect of Microbispora in actual agricultural production is seriously restricted, the application of Microbispora longispora in simultaneously enhancing the lodging resistance and tillering ability of rice is provided, and specifically, the rice seedbed soil is treated by Microbispora longispora, more contact opportunities and time are given to Microbispora and rice roots, the conventional seed bactericide can be compatible, the lodging resistance and tillering ability of rice can be simultaneously enhanced, and the yield of rice is improved.

The invention provides arthrobacter ZJUHUYJH1 and application thereof in preventing and treating gramineous meloidogyne, and belongs to the technical field of prevention and treatment of plant meloidogyne. The arthrobacter ZJUHUYJH1 provided by the invention has the preservation number of CCTCC NO: M 2025922, is separated from rice root soil infected by the gramineous meloidogyne, and has the advantages that the preservation number is CCTCC NO: M 2025922; the composition has a good prevention and treatment effect on the gramineous meloidogyne; the correction fatality rate of second-stage larvae of the meloidogyne reaches 91.4%, and the root knot number and the ratio of the root knot number to the dry weight of rice infected by the pseudogramineous meloidogyne can be reduced; the method has potential and practical application value in research of the Meloidogyne pseudoaceae.

The utility model discloses an agricultural robot, including 2 walking devices and at least 1 loading mechanism, and the loading mechanism includes loading platform and support mechanism, and each walking device includes a spiral advancing mechanism and at least one motor, and the spiral advancing mechanism is the cylindrical structure that is provided with the external thread outside, and each spiral advancing mechanism is connected with at least one motor, including at least one battery, and the physical axis of 2 spiral advancing mechanisms is parallel to each other, and the rotation direction of the external thread of 2 spiral advancing mechanisms set up on 2 walking devices is opposite, through to the specific setting of walking device, has realized the agricultural robot for rice field this specific use environment can prevent the injury rice root, can scatter the soil structure in the process of rotating and advancing, cut off the weed root system, increases the oxygen content and the air permeability of soil simultaneously, promotes crop root system respiration and growth, makes this agricultural robot can be completely efficiently used in the rice field.

The invention discloses a rice OsRDR5 gene, an encoding protein, a fixed-point editing system, application and an application method. The nucleotide sequence of the OsRDR5 gene is shown as SEQ ID NO.1; the amino acid sequence of the encoding protein of the rice OsRDR5 gene is as shown in SEQ ID NO. 2. The gene has a Coa3cc structural domain and belongs to a cytochrome c oxidase assembly factor 3 gene family. A knockout mutant of the OsRDR5 gene shows a relatively high deep root ratio, and meanwhile, the gravitational property of a rice root system is changed. The rice OsRDR5 gene disclosed by the invention is used for regulating and controlling the drought resistance of rice, and a knockout mutant of the rice OsRDR5 gene has a relatively high deep root ratio and can be applied to breeding of a new variety of water-saving and drought-resistant rice, so that the drought resistance of the rice is improved.

This useful solution addresses the technical process of rice cultivation, focusing on establishing a uniform nutrient environment throughout the entire soil layer before planting. Specifically, it involves applying the entire prescribed amount of inorganic fertilizer for the entire crop, combined with soil preparation to evenly mix fertilizer and straw into the cultivated soil layer before planting. This creates a safe and favorable nutrient environment for the rice root system to grow and develop throughout its cycle, helping to improve yield, quality, efficiency, and reduce environmental pollution, contributing to sustainable agricultural development. This solution does not conflict with other cultivation practices such as: new varieties, mechanization, irrigation, and planting seasons. Therefore, this solution can be applied to the entire rice growing area of ​​Vietnam (7 million hectares / year) and worldwide (approximately 170 million hectares / year). In addition, the technical principles of the solution can be applied to some other short-term crops with similar effectiveness.

This invention discloses a method and system for tracking rice roots and shoots based on two-stage segmentation and topological feature fusion. The method first acquires several frames of seed images, then obtains individual seeds through instance segmentation, followed by semantic segmentation to obtain the roots, shoots, and main body of each seed. Finally, topological graph matching is used to track the main body of the seed. Since the roots, shoots, and main body belong to the same individual in the image, root and shoot tracking is achieved simultaneously. This invention enables automated and precise monitoring of the dynamic growth of root and shoot growth in single seeds in dense environments, providing reliable technical support for dynamic monitoring of rice germination and phenotypic patterns.

The application discloses a rice OsRDR5 gene and a coding protein, a site-directed editing system, application and an application method, a nucleotide sequence of the OsRDR5 gene is shown as SEQ ID NO. 1; and an amino acid sequence of the coding protein of the rice OsRDR5 gene is shown as SEQ ID NO. 2. The gene has a Coa3_cc domain and belongs to a cytochrome c oxidase assembly factor 3 gene family. Knockout mutants of the OsRDR5 gene show a higher deep root ratio, and simultaneously change the gravitropism of rice root systems. The rice OsRDR5 gene of the application regulates the drought avoidance of rice, the knockout mutants have a higher deep root ratio, and can be applied in breeding of new water-saving and drought-resistant rice varieties, so that the drought resistance of rice is improved.

The utility model discloses a rice cultivation device capable of realizing circulating water supply, which relates to the field of rice cultivation equipment and comprises a cultivation box used for cultivating rice, a placing frame arranged at the bottom end of the inner side of the cultivation box, a plurality of cultivation basins arranged at the top of the placing frame, a plurality of water outlets formed in the bottoms of the cultivation basins, and a plurality of supporting rods. The multiple supporting rods are arranged at the bottom end of the inner side of the cultivation box at equal intervals, the two sides of each supporting rod are obliquely arranged from the center of the top to the bottom ends of the two sides, a drainage groove is formed in the bottom end of the inner side of the cultivation box, a drainage opening is formed in one end of the inner side of the drainage groove, and a drainage plate used for guiding water flow is obliquely arranged in the drainage groove. The two sides of the interior of the drainage groove are obliquely arranged towards the two sides of the drainage plate respectively, water flow can be rapidly drained through the structure, meanwhile, due to the fact that the two sides of the supporting rod are obliquely arranged from the center of the top to the bottom ends of the two sides, the water flow can be prevented from flowing at the top of the supporting rod, and then soil and rice roots are protected; the cultivation effect of the rice is improved to a certain extent.