118 results about "Pear tree" patented technology

The invention relates to the technical field of microorganisms, and particularly discloses a saline-alkaline tolerant bacillus deserticola BW-13 with biocontrol and growth promoting functions and application thereof. The bacillus safensis BW-13 is preserved in the China Center for Type Culture Collection on January 13, 2025, the classification name of the bacillus safensis BW-13 is bacillus safeensis, and the preservation number of the bacillus safensis BW-13 is CCTCC NO: M 2025108. The strain BW-13 has relatively high salt tolerance, and still keeps good resistance under various stress conditions; meanwhile, the plant growth promoting agent has various plant growth promoting characteristics including nitrogen fixation, phosphorus solubilization and cellulase and protease secretion capacity, and pot experiment verifies that the plant growth promoting agent can improve the salt resistance of cucumber seedlings and promote plant growth; the strain has an antagonistic effect on a plurality of phytopathogens, and especially has a remarkable prevention and treatment effect on plant diseases such as apple ring spot, polygonatum kingianum anthracnose, pear tree rot and tomato gray mold caused by ascomycophyta pathogenic fungi.

The invention discloses bacillus atrophaeus YL84, a microbial agent and application, and belongs to the technical field of microorganisms. The strain is preserved in the China Center for Type Culture Collection on February 20, 2025, the preservation address is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M 2025267. Sterile fermentation filtrate of the strain YL84 can effectively inhibit germination of conidia and growth of mycelia of valsa ceratosperma of Korla pear trees, can play a good role in preventing in-vitro branches and potted pear seedlings, in addition, the strain can secrete protease and cellulase and synthesize siderophores, has the capacity of dissolving inorganic phosphorus and producing IAA at the same time, and has a good application prospect. The strain has a remarkable antagonistic effect on five common plant pathogenic fungi in the Xinjiang Uygur autonomous region and is wide in antibacterial spectrum.

The invention relates to the technical field of microorganisms, in particular to a strain of Senotrophomonas sepilia DB3 with disease-resistant, iron-dissolving and growth-promoting functions and application thereof, and the strain is separated from calcareous soil pear tree rhizosphere and has good capabilities of producing IAA (Indoleacetic Acid), quickly growing, dissolving insoluble iron, producing iron carriers and effectively antagonizing various pathogenic bacteria. Pot experiments show that the DB3 microbial inoculum can significantly promote growth of peanut and pyrus betulaefolia seedlings, improve root development and iron nutrient content, enhance leaf SPAD value and iron absorption and relieve iron-deficiency yellows, can be used for preparing biological bacterial fertilizers and reducing chemical iron fertilizer investment, and has good development and application prospects.

The invention provides a method for regulating and controlling phenological periods of outdoor pear trees, and belongs to the technical field of pear tree cultivation. According to the phenological period delaying method suitable for the outdoor cultivation pear orchard in the south, the phenological period of pears can be delayed by 5-7 days through grass growing in winter, grass covering in early spring and irrigation in early spring, soil temperature rising is restrained, root activity recovery is restrained, and the phenological period of pears can be delayed by 5-7 days. Specifically, by maintaining high soil water content and low soil temperature, inhibiting respiration and physiological activity recovery speed of root systems of pear trees in spring and delaying absorption and transfer of moisture and nutrients by the root systems, the metabolism level of the tree bodies is reduced, and the phenological period of the pear trees is delayed by about 7 days. Through the synergistic effect of vegetation covering and moisture regulation, accurate delay of the phenological period of the pear tree is achieved, operation is easy and convenient, the ecological cultivation requirement is met, and the method is suitable for open-air pear cultivation areas in the south.

The invention provides an orchard building method and a pruning method of a double-layer dwarf open-center-shaped high-photosynthetic-efficiency cultivation pear orchard, and belongs to the technical field of fruit tree cultivation. According to the orchard building method for the high-photosynthetic-efficiency cultivation pear orchard, multiple factors such as the sun drift angle, the day photosynthetic efficiency change around pear trees, the geographic latitude of the orchard and the growth period of pear varieties are comprehensively considered, and the planting row direction and the high-photosynthetic-efficiency tree form are determined and pruned according to the latitude of the place where the orchard is located and the day photosynthetic efficiency change around the pear trees. By means of the orchard building method, by selecting a high-light-effect tree form and a scientific pruning method, controlling the height and size of a tree crown, thinning and removing over-dense branches on the upper portion and adjusting a fruiting branch group, the ventilation and light transmission conditions in the tree crown can be effectively improved, shielding of the tree crown to lower leaves is reduced, and illumination of the lower leaves is further improved. The method is simple and easy to implement, convenient to popularize and apply, and capable of remarkably improving the pear tree photosynthesis efficiency and improving the fruit yield and quality of pears.

The invention belongs to the technical field of microorganisms, and discloses bacillus velezensis and application thereof in plant disease control. A bacillus velezensis strain is separated and screened from rhizosphere soil of a wolfberry plant in a Nomuliflood farm in Qinghai province, the strain is bacillus velezensis G3 and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No. 36136. The bacterial strain has a better antibacterial effect on pathogenic bacteria fusarium oxysporum of Chinese wolfberry root rot, also has an inhibiting effect on pathogenic bacteria of Chinese wolfberry verticillium wilt, botrytis cinerea, sclerotinia rot of colza, alternaria alternata, apple anthracnose, apple rot, pear wilt and wheat scab, and has broad-spectrum antibacterial activity; wide application prospects are realized in plant disease prevention and treatment.

The invention relates to the technical field of agricultural planting, and discloses a water and fertilizer integrated irrigation control method and system for pear trees, and the method comprises the steps: obtaining a seedling culture date, obtaining the age of the pear trees according to the difference between the current real-time date and the seedling culture date, and determining the growth cycle of the pear trees according to the age; determining initial water and fertilizer parameters according to the growth cycle of the pear tree; acquiring weather information and soil information of an area where the pear tree is located, adjusting irrigation time through the weather information, adjusting irrigation amount and fertilization amount through the soil information, and determining final water and fertilizer parameters. By calculating the age of the pear tree, the growth stage of the pear tree is determined, initial water and fertilizer parameters are set for different growth stages, and targeted water and fertilizer management is achieved. The real-time weather information and soil information are combined, the irrigation time is adjusted through the weather information, the irrigation amount and the fertilization amount are adjusted through the soil information, the environment change can be adapted, and the irrigation and fertilization effects are improved.

The utility model relates to a trellis, specifically a pear tree trellis structure, including multiple columns of support units, each column of the support units is provided with multiple support frames; the support frames include a vertical frame and support frames symmetrically arranged on both sides of the vertical frame, rollers are rotatably mounted on the support frames, and steel wires arranged along the column direction penetrate through holes formed on the rollers; the support frames also include an adjustment mechanism connected to the rollers, the adjustment mechanism is used to control the rotation of the rollers so as to increase or decrease the number of turns of the steel wire on the rollers. The steel wires are installed to support the branches of the pear tree, and when the steel wires are deformed or the tension needs to be adjusted, the rollers can be driven to rotate by the adjustment mechanism to adjust the length of the steel wires, thereby achieving adaptive adjustment to meet different support requirements, and having a wide range of applications.

The invention belongs to the technical field of biology, and discloses Aspergillus tubingensis Pa6 and application of the Aspergillus tubingensis Pa6 in prevention and treatment of fruit tree diseases in order to improve the biological prevention and treatment effect of the fruit tree diseases, the strain number of the Aspergillus tubingensis is Pa6, and the registration number of the Aspergillus tubingensis in the General Microbiological Center of China Committee for Culture Collection of Microorganisms is CGMCC No.41994. The invention further discloses an application of the Aspergillus tubingensis Pa6 in the prevention and treatment of the fruit tree diseases. The Aspergillus tubingensis can prevent and / or treat strawberry gray mold, strawberry black spot or pear tree rot, or can be used for preparing products for preventing and / or treating strawberry gray mold, strawberry black spot or pear tree rot. The bacterial strain also has a relatively good antibacterial effect on fungi such as strawberry botrytis cinerea, strawberry black spot pathogen, apple ring spot pathogen, apple colletotrichum gloeosporioides, pear rot pathogen and the like.

The application discloses application of a fungal virus in prevention and treatment of pear tree and apple tree Valsa diseases. The fungal virus is a positive single-stranded RNA virus, and a cDNA nucleotide sequence of the fungal virus is shown as SEQ ID No. 1. A fungus containing the virus is Valsa pyri HJL1-22 (gamma), the fungus is infected by the fungal virus of claim 1, the fungus is named as HJL1-22 (gamma), is classified and named as Valsa pyri, and has a preservation number of CGMCC No. 41449 in China General Microbiological Culture Collection Center. The virus Vphv1-gamma can be secreted to outside of cells, therefore, culture liquid filtered off mycelium can be used as a biocontrol agent for prevention and treatment of pear tree and apple tree Valsa diseases, and can effectively weaken or inhibit pathogenicity and diffusion of Valsa pyri and Valsa mali, and has a prospect for being used for producing and practicing biological prevention and treatment of pear tree and apple tree Valsa diseases.

This invention relates to the field of fruit tree pollination equipment, specifically to an integrated device for precise pollination of pear tree inflorescences and constant temperature maintenance of pollen activity. The device includes a guide tube, with a constant temperature tube sleeved outside the guide tube and fixedly connected to it. One end of the guide tube has a gas path switching component for switching gas flow direction. The gas path switching component includes a switching cavity fixedly connected to one end of the guide tube, with several air inlets on the sidewall of the switching cavity. The end of the switching cavity away from the guide tube is fixedly connected to the inner sidewall of the constant temperature tube, and the end of the constant temperature tube away from the switching cavity has several exhaust holes. A T-shaped slider is slidably fitted onto the inner sidewall of the switching cavity. This invention, through the gas path switching component and the telescopic guide hood assembly, solves the problems of poor pollen activity maintenance due to large temperature fluctuations before spraying and during transport in existing pear tree inflorescence pollination processes, as well as inaccurate pollination caused by external wind disturbances during pollination.

The utility model discloses a pesticide spraying device for pear tree blooming and freezing prevention, which belongs to the technical field of spraying equipment and comprises a liquid storage tank, a cover plate is mounted at the upper end of the liquid storage tank, a mixing component is mounted in the liquid storage tank, and one end of the mixing component penetrates to the center end of the top side of the cover plate. According to the scheme, various anti-freezing agents needing to be sprayed can be quantitatively released into the liquid storage tank in the two quantitative assemblies, then a worker repeatedly pulls the mixing assemblies up and down, and the anti-freezing agents can be sprayed in the liquid storage tank, so that the anti-freezing agents can be sprayed in the liquid storage tank, and the anti-freezing agents can be sprayed in the liquid storage tank. According to the pesticide spraying device, the liquid storage tank is arranged, so that the fed pesticide can be fully mixed and stirred in the liquid storage tank, the subsequent pesticide spraying effect is better, meanwhile, the operation that a worker mixes and stirs the pesticide in other utensils in advance, quantifies the pesticide and then feeds the pesticide into the liquid storage tank for spraying is omitted, the working efficiency of the worker is greatly improved, and the labor intensity of the worker is reduced. And the labor burden is reduced.

The utility model relates to the field of tree pruning devices, in particular to a dwarf close planting pear tree pruning device which comprises a power rod and a supporting cylinder, a shearing blade buffering mechanism is arranged between a fixing frame and the supporting cylinder, and the buffering mechanism comprises a moving block connected to the inner wall of the supporting cylinder in a sliding mode. Two triggering blocks are fixedly connected to the top end of the moving block, and two cylinder bodies are fixedly connected to the inner top wall of the supporting barrel; when a moving rod is arranged to drive a shearing blade to cut thick branches, the moving rod drives a trigger block on a moving block to compress gas in a cylinder body through a piston, impact of the blade on a fixing frame is reduced, device damage is avoided, and therefore the purpose of prolonging the service life of the device is achieved; and a rotating sleeve is arranged on the cylinder body to be matched with rotating connection of a positioning block and a moving rod, so that the device can be rotated and adjusted to a position most suitable for self power generation, and the use convenience of workers is improved.

The invention relates to the field of microorganisms, in particular to streptomyces L1 and application thereof to prevention and treatment of Korla pear tree canker. According to the invention, Streptomyces sp. L1 is separated from Korla pear tree barks, and a plate confrontation experiment and a field test prove that the Streptomyces sp. L1 has a relatively good antagonistic effect on valsa ceratosperma of Korla pear trees, so that a new biocontrol bacterium resource is provided for prevention and treatment of the Korla pear tree rot disease.

The utility model relates to the technical field related to grafting tools, specifically a pear tree grafting auxiliary device, comprising a mounting frame and a clamping piece symmetrically arranged on the mounting frame, the clamping piece can rotate relative to the mounting frame, and also comprises an elastic extrusion piece, one end of the elastic extrusion piece is rotatably connected to the mounting frame, and the other end is rotatably connected to the clamping piece; elastic cloth, both ends of which are rotatably connected to the clamping piece. The utility model manually controls the rotation of the clamping piece relative to the mounting frame, and adjusts the rotation angle of the clamping piece according to the thickness of different branches. When the clamping piece is deflected, the elastic extrusion property is deformed. When the driving of the clamping piece to rotate is stopped, under the action of the elastic potential energy stored in the elastic extrusion piece, scions and rootstocks of different thicknesses can be clamped, and the elastic cloth adapts to branches of different thicknesses, and quickly wraps the grafting wound to stabilize the tightness of the combination of the scion and the rootstock.

The utility model relates to the technical field of pear tree management devices, in particular to a pear tree fruit thinning device. Comprising an upper plate, a rectangular groove is formed in the upper portion of the upper plate, the portions, on the left side and the right side of the groove, of the upper plate form shifting rods, the upper ends of the shifting rods are pointed ends, and the portions, on the left side and the right side of the groove, of the upper plate are elastically and rotationally connected with cutting assemblies; the rotating rod is connected with a driving unit, the driving unit can enable the free ends of the blades to rotate towards the middle of the upper plate, forward projections of motion trails of the free ends of the two blades from front to back have an intersection point, a supporting rod is fixed to the lower end of the upper plate, and a handle is fixed to the lower end of the supporting rod. According to the device, the groove is formed in the upper part of the upper plate, so that fruit stems of young fruits needing to be removed on a pear tree can conveniently enter the groove, the young fruits needing to be removed can be conveniently separated from the young fruits needing to be reserved, and the fruit thinning efficiency can be improved.

The invention relates to the technical field of genetic breeding, and particularly provides a gene related to drought tolerance of pear trees and application of the gene, the gene is specifically a PbAREB3 gene, the nucleotide sequence of the gene is shown as SEQ ID NO.1, and the amino acid sequence of the gene is shown as SEQ ID NO.2; the PbAREB3 gene provided by the invention can be used for effectively judging the drought tolerance of various pear tree materials, and the PbAREB3 gene with high expression quantity is high in corresponding drought tolerance; according to the gene, the screening efficiency can be effectively improved, and meanwhile, a guidance thought can be effectively provided for cultivating a drought-resistant pear tree transgenic material.

The utility model discloses pear tree planting equipment which comprises a first outer ring and a second outer ring, the first outer ring is hinged to the second outer ring, supporting assemblies are arranged on the outer sides of the first outer ring and the second outer ring, and fixing assemblies are arranged on the inner sides of the first outer ring and the second outer ring. An auxiliary assembly is arranged on the outer side of the bottom of the supporting assembly, a supporting frame is connected between the side plates in an inserted mode, first bolts are fixedly installed between the supporting frame and the side plates, and an adjusting rod is connected into the supporting frame in an inserted mode. According to the pear tree planting equipment, fixing between the adjusting rod and the supporting frame can be removed by unscrewing the hand-screwing nut, so that the adjusting rod moves along the interior of the supporting frame and is fixed again after moving to a proper position, tree trunks with different heights can be effectively supported by changing the position of the adjusting rod, and the practicability of the pear tree planting equipment is improved. And the supporting effect and applicability of the device are ensured.

The invention discloses a pear tree planting and seedling raising liquid supply treatment system, which comprises a supply box and uniformly distributed universal wheels, the universal wheels are installed at the bottom of the supply box, the inner wall of the supply box is fixedly connected with a partition plate, two liquid pumps are fixedly installed on the inner bottom wall of the supply box, and the two liquid pumps are fixedly connected with the partition plate. And the top end of the infusion pump is fixedly connected with a spraying pipe. According to the system, a large number of pictures and information in the pear tree planting and seedling growing process are stored in the storage module, when liquid is supplied to the pear tree seedling growing container, the industrial camera located in the front portion can conduct image collection on the state of pear seedlings, and therefore the growth state of the pear seedlings is judged through the comparison and analysis module, and the corresponding flow is set; when the nutrient solution is sprayed, monitoring and timely blocking are carried out through the flow sensing valve, so that automatic and accurate nutrient solution spraying can be realized, the steps and the labor amount required by personnel are reduced, and help can be provided for the personnel who do not understand the knowledge of pear tree planting and seedling raising.

This invention relates to a reverse spraying structure for treating diseases on the underside of pear leaves. It includes a mounting chassis, a first medicine tank, a second medicine tank, a spraying moving mechanism, a spraying adjustment mechanism, a spraying connection module, and a spraying module. The spraying moving mechanism drives the spraying adjustment mechanism to move linearly along a moving guide rail, achieving precise adjustment of the spraying position. The adjustment motor in the spraying adjustment mechanism drives the spraying pipe to rotate axially via a gear ring, causing the fan-shaped nozzle to spray the pesticide solution upwards from below the plant, directly targeting and infecting diseases such as black spot disease on the underside of pear leaves. The spraying connection module is equipped with a separating sealing plate. This invention divides the inner cavity of the spraying pipe into two independent chambers, each connected to one of the two medicine tanks. Combined with the limiting action of the intercepting bracket and the rotation of the spraying pipe to close the spraying nozzle, the pressure of the pesticide solution pushes the separating sealing plate to slide, achieving rapid switching between the two pesticide solutions with zero cross-contamination.

The application discloses application of a Pyrus betulaefolia E3 ubiquitin ligase gene PbrATL18 in genetic improvement of plant drought resistance and anthracnose resistance and belongs to the technical field of genetic engineering. The nucleotide sequence of the PbrATL18 gene is shown as SEQ ID NO. 1, and the amino acid sequence of the encoded protein is shown as SEQ ID NO. 2. The plant drought resistance and / or anthracnose resistance performance is improved by overexpressing the PbrATL18 gene in the plant or improving the protein activity. The application constructs a gene overexpression Arabidopsis transformation vector and a gene silencing P. betulaefolia seedling transformation vector respectively, obtains positive plant seedlings, and carries out drought and anthracnose treatment. The results show that overexpression of the E3 ubiquitin ligase gene PbrATL18 can effectively maintain the balance of active oxygen in cells, keep the cell osmotic potential stable, and significantly improve the plant drought resistance and anthracnose resistance performance, thereby providing a new idea for high drought tolerance and disease resistance breeding of pear trees.

The utility model relates to the technical field of fertilization for dwarfing and dense planting of pear trees, in particular to water and fertilizer regulation and control equipment for dwarfing and dense planting of pear trees, which comprises a proportioning tank, and one side of the top of the proportioning tank is fixedly connected with a placement box; the regulation and control mechanism capable of precisely regulating and controlling water and fertilizer for dwarfing and close planting of the pear trees is arranged at the top end of the proportioning tank; by arranging a regulation and control mechanism, the upper end and the lower end of a packing auger in the middle of a placement box communicate with a placement groove and a weighing box correspondingly, the packing auger can convey solid water and fertilizer raw materials in the placement groove into the weighing box, water and fertilizer needing to be proportioned are regulated and controlled through a weighing disc, and a sealing plate can seal and intercept a groove in the bottom end of the weighing box; water and fertilizer leakage can be prevented during liquid water and fertilizer proportioning, the water storage barrel can adjust the position of the piston plate through the threaded rod, the position of the piston plate can be adjusted through the dial gauge, the pear tree dwarf close planting water and fertilizer can be accurately regulated and controlled, and the irrigation effect of the water and fertilizer is improved.

The invention discloses a bagged pear recognition and positioning method based on YOLO, WLS-SGBM and trellis type region division, and the method comprises the following steps: 1, calibrating a binocular camera, and obtaining internal and external parameter matrixes and distortion coefficients of a left camera and a right camera; step 2, performing stereo correction and stereo matching on the left and right images, eliminating the structural defects of the binocular camera and generating a disparity map; and step 3, fusing a YOLO v7-pyrite-master algorithm and a WLS-SGBM algorithm, carrying out target detection on the bagged pears on the left camera image by utilizing a YOLO v7-pyrite-master training model, and identifying the positions of the bagged pears in the image and a bounding box of the bagged pears. And extracting the coordinate information of the central point of the target bounding box detected by the YOLO v7-pytor-master model, and calculating the accurate distance of the bagged pears in combination with the data of the depth map. And 4, performing identification and positioning area division on the shed frame type pear tree body structure, and sequentially identifying and positioning the bagged pears in the area.

The present application belongs to the technical field of fruit tree cultivation, and particularly relates to a continuous trunk improved pear tree shape and a cultivation method thereof. Specifically, for the mature pear tree with open heart-shaped training, the vertical branch in the middle of the inner cavity of the tree body is selected as the stock after being short-cut and grafted with pollination branches to be the central trunk; the following year, the central trunk is short-cut in the middle in winter; in the third year, the central trunk plays the role of pollination in the flowering period and the inflorescences are removed after flowering; the main branches on the top of the central trunk are pulled to form a "tree on tree" shape; in the fourth year, the central trunk plays the role of pollination in the flowering period and the inflorescences are removed after flowering or the fruits are left after flowering, and the strong branches are removed; in the fourth winter, the main branches of the central trunk are removed to leave the weak and curved branches, and the side branches are removed to leave the strong and vigorous branches. The method can reduce the germination rate of the vertical overgrowth branches on the main branches of the original tree by more than 40%, significantly saving the nutrients of the tree body, increasing the average fruit setting rate of the inflorescences, and significantly improving the single fruit weight of the fruits due to the pollen collective effect, and increasing the orchard output value.

The present invention discloses a method for controlling pear tree pests and diseases using a combination of predatory mites and Bacillus amyloliquefaciens. The predatory mite is Neoseiulus barkeri. The method comprises the following steps: 1) preparing biocontrol bacteria: preparing a Bacillus amyloliquefaciens powder; 2) preparing predatory mites: preparing adult Neoseiulus barkeri mites in a matrix material; 3) preparing a mixed biocontrol product: mixing the Bacillus amyloliquefaciens powder with the matrix material containing Neoseiulus barkeri mites before use; the mixed biocontrol product is sealed in a package and stored at 13-17°C; 4) applying the agent: applying the mixed biocontrol product during the second physiological fruit drop period of the pear tree, opening the package and securing it to the trunk of the pear tree; the mixed biocontrol product used per pear tree contains 160-190 million CFU of Bacillus amyloliquefaciens and 2,900-3,100 Neoseiulus barkeri mites. The method can simultaneously control pear mite pests and pear fire blight, achieving a fire blight control efficacy of over 80%.

The invention provides a composition for preventing and treating rot of pear trees as well as a preparation method and application of the composition, and belongs to the technical field of pesticide preparation. The composition is prepared from osthole and tebuconazole. The biological source bactericide cnidium lactone and the chemical bactericide tebuconazole are combined for preventing and treating the bergamot pear tree rot disease or inhibiting the bergamot pear tree rot disease, the effect of preventing and treating the bergamot pear tree rot disease is improved, and the synergistic interaction effect is achieved. The method for preparing the composition is simple and easy to implement. According to the composition, the use of a chemical agent tebuconazole is reduced, a way for improving the environment and reducing pollution is provided, and a basis is provided for sustainable and long-term development of a method for preventing and treating the rot diseases of the bergamot pear trees.

The utility model relates to the technical field of supporting frames, in particular to a foldable pear tree branch supporting frame which is characterized in that an H-shaped angle adjusting seat is rotatably connected to the interior of a telescopic reinforcing rod, a supporting ring is fixedly connected to the outer surface of the telescopic reinforcing rod, and a jacking spring is fixedly connected to the interior of the supporting ring. And the H-shaped angle adjusting seat rotationally connected in the telescopic reinforcing rod is manually screwed, so that the H-shaped angle adjusting seat rotates around a connecting point. During rotation, the inclined surface of the arc-shaped clamping groove in the H-shaped angle adjusting seat extrudes the triangular limiting block, so that the triangular limiting block compresses the jacking spring to slide down. When the H-shaped angle adjusting seat rotates to the position of the next arc-shaped clamping groove, the triangular limiting block loses extrusion force, the triangular limiting block is ejected and clamped into a new clamping groove under the elastic force effect of the jacking spring, due to the five arc-shaped clamping grooves, limiting of the adjusting angle of the H-shaped angle adjusting seat is achieved, the H-shaped angle adjusting seat is stably kept at the corresponding screwing installation position, and the placement position is stably kept. And a worker can conveniently finish screwing installation work with one hand.

The invention belongs to the technical field of microorganisms, and discloses bacillus velezensis with induced resistance activity and application of the bacillus velezensis in plant disease control. According to the bacillus velezensis H-33 and the application thereof, the bacillus velezensis H-33 is separated and screened from healthy kiwi fruit branches, the strain can improve the disease resistance of plants by inducing the systemic resistance of the plants, and the bacillus velezensis H-33 has a prevention and treatment effect on plant diseases such as kiwi fruit bacterial canker, pear tree canker, apple tree canker and apple anthracnose, and can be used for preventing and treating the plant diseases such as kiwi fruit canker, pear tree canker, apple tree canker and apple anthracnose. The broad-spectrum antibacterial activity is realized. The invention provides a new strain resource for green prevention and control of plant fungal diseases and plant bacterial diseases, and has a good application prospect.

The invention relates to water and fertilizer regulation and control equipment and method for pear trees. The equipment comprises a rack, a water pump, a plurality of delivery pipes, an electric control box and a control box, a first flow dividing pipe and a second flow dividing pipe are arranged on the rack, and the first flow dividing pipe is located above the second flow dividing pipe; one end of the water-fertilizer pipe is used for introducing water and fertilizer, and the other end of the water-fertilizer pipe is communicated with the first shunt pipe; the water inlet end of the water pump is connected with a water inlet pipe, the water outlet end of the water pump is connected with a water conveying pipe, and the water conveying pipe is further connected with the second flow dividing pipe. One end of each leading-out pipe is communicated with the first flow dividing pipe and the second flow dividing pipe; the other end is communicated with the drip irrigation pipe; an electromagnetic valve and a flow meter are arranged on each lead-out pipe; the electric control box is arranged on the rack; the electric control box is electrically connected with the water pump; the control box is electrically connected with the multiple electromagnetic valves, the multiple flow meters and the electric control box. Compared with the prior art, water and fertilizer drip irrigation to pear trees can be accurately controlled.