7489 results about "Agronomy" patented technology

The invention relates to the technical field of farmland fertilization management, and discloses an intelligent fertilization management method and system based on machine learning. The method comprises the steps that a soil parameter set and an environment parameter set of a target farmland are collected, soil parameters comprise soil humidity, nitrogen phosphorus and potassium content and pH value, and environment parameters comprise illumination intensity, temperature and rainfall; constructing a soil nutrient dynamic change model according to historical data, and predicting a soil nutrient consumption trend in a future preset period; generating an initial fertilization scheme based on the nutrient consumption trend and the crop growth stage characteristics; monitoring the growth state of crops in real time by using a multi-mode sensor, and obtaining a leaf surface color index, a stem height and a fruit development progress to form a growth state data set; and inputting the growth state data set and the initial fertilization scheme into a fertilization decision model, and comparing growth state deviation to adjust the nutrient distribution ratio to generate an optimized fertilization scheme.

The invention discloses a multifunctional low-temperature corn straw degradation complex microbial inoculant, a preparation method and application, the complex microbial inoculant is compounded by a plurality of microorganisms with straw degradation, potassium dissolving and growth promoting functions, and the complex microbial inoculant comprises the following strains: bacillus subtilis K15, curveolate Prickia L11 and bacillus mycoides L31. The complex microbial inoculant disclosed by the invention realizes synergistic interaction and functional complementation, and through scientific compounding of strains, the straw decomposition rate is remarkably increased, and the decomposition period is obviously shortened; the adaptive capacity and colonization competitiveness of microorganisms in a low-temperature and complex soil environment in winter are enhanced. The complex microbial inoculant disclosed by the invention also has multiple functions of degrading straws, dissolving potassium, producing IAA (Indoleacetic Acid) and the like. The soil potassium which is difficult to utilize can be converted into quick-acting potassium while the straws are quickly decomposed to release nutrients.

The invention belongs to the technical field of cell cryopreservation, and relates to a cryopreservation method based on ultrasonic ice planting. In the method, the nucleation temperature of ice planting is less than-9 DEG C, and the cooling rate from nucleation to icing is less than 5 DEG C / min. Compared with the prior art, the method has the advantages that the time required for cryopreservation of the cells is remarkably shortened, meanwhile, damage to the cells caused by ice crystals generated in the cooling process is reduced, and the problem that an existing cell cryopreservation cooling method cannot meet the nucleation and freezing uniformity of a cell solution in the cooling process is solved.

The invention discloses a Burkholderia sp. Strain and an application thereof in prevention and treatment of eucalyptus blight. The Burkholderia sp. AS-SF-1 disclosed by the invention has the preservation number of GDMCC (Graphical December Microorganism Center) No. 66223; the culture and volatile matter of the strain can inhibit growth of various forest pathogenic bacteria, the eucalyptus has a remarkable control effect on branch blight, siderophore can be generated, absorption and utilization of iron can be promoted, various types of carbon sources or nitrogen sources can be utilized, and the strain can grow within the pH range of 4-9. The burkholderia sp. AS-SF-1 disclosed by the invention has an important application value on planting of eucalyptus and prevention of diseases.

The invention provides bacillus megaterium and application thereof in preparation of a nano-selenium organic fertilizer and improvement of the selenium content of tea leaves, and belongs to the technical field of microorganisms, the bacillus megaterium NT2 is preserved in the China Center for Type Culture Collection with the preservation number of CCTCC NO: M 20251806, and the bacillus megaterium NT2 is preserved in the China Center for Type Culture Collection with the preservation number of CCTCC NO: M 20251806. The bacillus megatherium NT2 has relatively strong resistance to reduction on selenium element, can survive in high-concentration inorganic selenium, can reduce the inorganic selenium into nano-selenium, and has relatively weak capability of enriching arsenic, cadmium and lead; the selenium source of the nano-selenium organic fertilizer can be prepared by mixed fermentation with high-selenium rock powder which is calcined and activated at high temperature, so that the content of heavy metals does not exceed the national standard while the selenium content of the tea leaves is increased. The bacillus megaterium provided by the invention not only can reduce the toxicity of inorganic selenium in high-selenium rock and convert the inorganic selenium into nano-selenium, but also can stably, safely and standardly produce selenium-rich tea leaves, the heavy metal content of the tea leaves does not exceed the standard, and the bacillus megaterium has a wide market prospect.

A crop loss monitoring method includes detecting crop loss in a measurement area when the measurement area corresponds to an unharvested area of a field and generating pre-harvest crop loss sensor data based thereon. The method further includes detecting crop loss in the measurement area when the measurement area is behind a distal end of a header of a harvester and generating harvesting crop loss sensor data based thereon. The method further includes identifying a pre-harvest crop loss value based on the pre-harvest crop loss sensor data, identifying a harvesting crop loss value based on the harvesting crop loss sensor data and the pre-harvest crop loss value, and generating one or more control signals based on at least one of the pre-harvest crop loss value or the harvesting crop loss value.

A crop loss monitoring method includes detecting crop loss in a measurement area, the measurement area corresponding to an unharvested area of a field. The method further includes identifying a pre-harvest crop loss value based on the crop loss detected in the measurement area. The method further includes generating one or more control signals based on the pre-harvesting crop loss value.

The invention relates to the technical field of steel smelting, and provides low-temperature corrosion-resistant steel for a high-cold frozen soil environment and a preparation method of the low-temperature corrosion-resistant steel. The invention relates to low-temperature corrosion-resistant steel for a high and cold frozen soil environment, which is prepared from the following components in percentage by mass: 0.04 to 0.06 percent of C, 0.15 to 0.40 percent of Si, 0.80 to 1.20 percent of Mn, less than or equal to 0.025 percent of P, less than or equal to 0.010 percent of S, 0.30 to 0.60 percent of Cr, less than or equal to 0.50 percent of Ni, 0.20 to 0.50 percent of Cu, 0.010 to 0.030 percent of Nb, 0.010 to 0.030 percent of Ti, 0.0010 to 0.015 percent of La, 0.0020 to 0.020 percent of Ce and the balance of Fe and inevitable impurity elements. Wherein the proportional relation of Nb, Ti, La and Ce is (Nb + Ti) / (La + Ce), and the value of the (Nb + Ti) / (La + Ce) is 1.5-9. Through the technical scheme, the problem of poor low-temperature toughness of steel in related technologies is solved.

The invention discloses a method for detecting aspergillus flavus and aflatoxin B1 of crops based on an infrared spectrum. The method comprises the steps of crop sample material collection, rice multi-strain mould infection, spectrum collection, crop sample aflatoxin B1 determination, spectrum pretreatment, correction model construction and model verification. The invention aims at detecting the content of aspergillus flavus infection and toxin B1 thereof in crops by combining a near-infrared spectrometer and a stoichiometric method. The method has the advantages of being simple and easy to implement, high in analysis speed, high in detection precision, low in analysis cost, free of any pollution to the environment and the like, samples do not need any pretreatment, and the method has important practical value for guaranteeing the quality safety of agricultural products and reducing the carcinogenic risk of people.

The invention belongs to the technical field of research on the relationship between snow drought and vegetation browning, and particularly discloses a quantification method and terminal equipment for the transfer relationship between snow drought and vegetation browning, and the method comprises the steps: obtaining a standard rainfall index, a nonparametric standardized snow water equivalent index and a normalized vegetation index in a preset time period of a research region; the snow drought grade of the research area is determined according to the non-parametric standardized snow water equivalent index, the snow drought type of the research area is determined according to the standard rainfall index and the non-parametric standardized snow water equivalent index, and the snow drought type comprises dry snow drought and warm snow drought; according to the normalized vegetation index, the standard rainfall index and the nonparametric standardized snow water equivalent index, determining the transmission time of vegetation browning caused by the corresponding type of snow drought; and according to the transmission time, determining the transmission probability of vegetation browning of different degrees caused by different grades and different types of snow and drought. According to the method, the transmission time and the transmission probability from snow drought to vegetation browning are quantified, and early drought monitoring and early warning can be improved.

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.

The invention provides a bamboo forest growth monitoring method and device based on a multispectral image, and relates to the technical field of remote sensing monitoring, and the method comprises the steps: obtaining a multispectral image of a to-be-detected bamboo forest through a multispectral camera, and enabling the multispectral camera to be carried on an unmanned aerial vehicle; based on the multispectral image, growth indexes of the bamboo forest to be detected are obtained, and the growth indexes comprise the height of bamboo plants, the number of the bamboo plants, chlorophyll content indication values of the bamboo plants and biomass of the bamboo plants; based on the growth indexes, determining the bamboo forest growth vigor. According to the bamboo forest growth vigor monitoring method based on the multispectral image, the growth vigor of the bamboo forest is comprehensively analyzed through all growth indexes, and accurate and efficient growth vigor monitoring of the large-area regional bamboo forest is achieved.

The invention belongs to the technical field of plant molecular biology, and relates to application of VDAC1 / 3a allele in regulation of tomato cold resistance. According to the invention, the expression quantity of the SlVDAC1 / 3a gene in the VDAC1 / 3a allele is reduced by means of knockout or mutation and the like, so that the cold resistance of the tomato can be enhanced, the yield of the tomato and the content of soluble solids are not negatively influenced, and a theoretical basis and gene resources are provided for cultivating and screening cold-resistant tomato varieties.

The invention discloses a Vinck Cellulomicrobe and application thereof in degradation of corn straw and improvement of soil fertility, and belongs to the field of agricultural microbial technology and solid waste resource utilization. The bacterial strain can secrete a plurality of hydrolase and oxidase including AA10 family lytic polysaccharide monooxygenase, AA2 peroxidase, GH3 and GH1 beta-glucosidase, GH16 / GH17 beta-glucosan endonuclease and AA1 multi-copper oxidase. The bacterial strain has the advantages that the bacterial strain can secrete a plurality of hydrolase and oxidase; fermentation liquor is applied to soil according to the straw mass ratio of 1: 5, and the corn straw degradation rate can be increased under the condition that the mass ratio of soil to straw is 100: 1. Meanwhile, the microbial agent can synergistically improve soil nutrients and increase the contents of rapidly available phosphorus, rapidly available potassium, alkali-hydrolyzable nitrogen, soluble organic carbon and total phosphorus in soil. According to the microbial agent, a straw lignocellulose structure is effectively cracked through a multi-enzyme system synergistic effect, and the dual effects of accelerating straw degradation and improving soil fertility are achieved.

The invention discloses application of ursolic acid in resisting fish ichthyophthiriasis. The ursolic acid has a remarkable killing effect on ichthyophthirius multifilis in an in-vitro stage, and the 4-hour half effective insecticidal concentration (4h-EC50) of the ursolic acid on a grazing body is 0.3774 mg / L; and the 22-hour half effective insecticidal concentration (22h-EC 50) on the capsule is 4.931 mg / L. An acute toxicity test shows that the 96-hour median lethal concentration (96h-LC50) of ursolic acid to goldfish is 9.358 mg / L, the therapeutic index (TI = 96h-LC50 / 4h-EC50) is up to 24.8, and the safety of ursolic acid is remarkably superior to that of a traditional medicine. Ursolic acid used in the invention is a plant-derived active component, has the characteristics of high environmental compatibility and low biological accumulation, meets the development requirements of green fishery, and has an industrialization basis for being developed into eco-friendly aquatic products.

The invention provides a healthy plant community construction method based on an urban green land nutrition relationship, and relates to a construction method of an urban green land plant community. The construction method comprises the following steps: selecting plant communities to construct species according to urban green land types and functional requirements; according to the plant community establishment species, determining the nutrition relationship between the phytophagous arthropods corresponding to the establishment species plants and the nutrition relationship between the phytophagous arthropods corresponding to the natural enemies; and selecting functional plants according to the corresponding nutrition relationship, and configuring the functional plants around the colonized plants to construct and form a healthy plant community based on the urban green land nutrition relationship. According to the construction method, healthy growth of plants in the urban green land, nutritional relation coupling and ecological system balance of the urban green land can be realized.

The invention discloses a rapid diagnosis method for blueberry continuous cropping soil obstacle factors, and belongs to the technical field of soil environment analysis. Based on combined analysis of soil physical and chemical factors, metagenome and metabolome, pathogenic bacteria types and key metabolites significantly related to the blueberry continuous cropping obstacle are extracted, and a characteristic diagnostic index system is formed. The index system comprises main pathogenic bacteria types, typical harmful metabolites, key soil physical and chemical factors and appropriate or risk threshold ranges thereof, and provides a scientific basis for rapid identification of soil continuous cropping obstacles. Comparative analysis is carried out by establishing a standardized index library, rapid comparison of related indexes and standard indexes in a newly sampled soil sample is realized, and whether the soil has continuous cropping obstacle risks or not is judged in an auxiliary manner by integrating the deviation degree of physical and chemical factors and biological factors.

The invention belongs to the technical field of molecular biology and genetic breeding, and discloses a molecular marker closely linked with soybean plant height QTL qPH1.01 and application of the molecular marker. According to the present invention, the major QTL qPH1.01 for regulating corn plant height variation is identified by using linkage analysis, the significantly associated SNP is located at the 27th, 318th and 904th bases of the first chromosome of the reference genome Glycinemaxv2.1, 6.28-11.14% phenotypic variation can be explained in the single environment, the PARMS marker developed by using the SNP is used to detect 96 soybean varieties, the typing is clear, the operation is simple and convenient, the method is suitable for soybean plant polymer breeding, and the application prospect is broad. And a new high-yield soybean variety with proper plant height and lodging resistance is cultivated.

The application provides a kind of intelligent temperature-regulated planting field soil temperature control system and method, related to soil temperature control technical field, obtains seedling planting field regional information, extracts all soil temperature monitoring sub-block according to seedling planting field regional information;Obtain the block environment data of soil temperature monitoring sub-block, determine soil temperature stress factor according to block environment data, obtain all soil temperature stress risk areas in seedling planting field based on soil temperature stress factor;Obtain the temperature control resource information in seedling planting field, determine resource area mapping matrix through temperature control resource information, determine temperature control response strategy through resource area mapping matrix and soil temperature stress factor;According to the soil temperature regulation of each soil temperature stress risk area according to temperature control response strategy.This application can realize the risk analysis and resource optimization control of soil temperature, to improve the temperature regulation precision and regulation efficiency of nursery stock cultivation environment.

The invention relates to the technical field of green prevention and treatment of dendroctonus valerieus, in particular to a dendroctonus valerieus repellent as well as a preparation method and application thereof. The repelling component comprises fenchone. The fenchone is found to have an obvious repelling effect on the dendroctonus resurus, and meanwhile, the fenchone can be used as a repellent for the dendroctonus resurus, and the dendroctonus resurus can be repelled in production to protect an ecological system of a pine forest. The repellent has the advantages of good repelling effect, stability, environmental friendliness and wide industrialization prospect.

The invention relates to the technical field of video monitoring, in particular to a livestock farm safety management method and system based on video monitoring, and the method comprises the steps: collecting a monitoring video of a livestock farm, and equally dividing each frame of video image into each CTU block; marking pixel points corresponding to the target object in each frame of video image as salient pixel points, and determining the static saliency of each CTU block; obtaining the motion pixel aggregation degree of each coordinate point in each frame of video image; determining the center-of-mass coordinate and the motion displacement of the target object in each frame of video image, and obtaining the dynamic saliency of each CTU block; and combining the static saliency and the dynamic saliency, determining a saliency weight of each CTU block, distributing a code rate for each CTU block, and carrying out coding compression on the video image for livestock farm safety management. Therefore, the monitoring video quality of the livestock farm is improved, and the safety management effect of the livestock farm is enhanced.

The invention provides a soil conditioner for improving soil hardening and a preparation method thereof, and relates to the technical field of soil conditioning. The soil conditioner is prepared by combining nano silicon dioxide, a straw retting material, a straw composite fermentation material, biochar, a water-retaining agent and modified starch. The straw composite fermented material is prepared by the following steps: crushing straws, mixing with sweet water, stirring, drying, carrying out microwave treatment, mixing with bacillus thuringiensis, fermenting, sterilizing, subsequently adding a composite microbial agent of bacillus subtilis, trichoderma and bacillus mucilaginosus, continuously fermenting, and drying. The modified starch is prepared by semi-gelatinizing corn starch and then carrying out microwave drying and shaping. According to the present invention, the defects in the prior art are overcome, the soil hardening phenomenon can be rapidly improved with the small addition amount, the soil porosity is increased, the activity and the diversity of the soil microorganisms are ensured, and the soil fertility is improved.

The invention discloses an EsSTB1 gene capable of increasing the number of branches of a plant, reducing the plant height and delaying flowering. The EsSTB1 gene has the functions of increasing the number of branches, reducing the plant height and delaying flowering, and a scientific basis and a new material are provided for cooperative regulation and control of tillering formation and reproductive growth of siberian wildrye; besides, the functional verification method of the EsSTB1 gene provided by the invention performs functional verification by applying transgenic arabidopsis thaliana starting from an internal regulation mechanism of tillering regulation of siberian wildrye, has obvious research depth and breadth and technical effects, and can obtain a plant strain with an intentional phenotype. Through verification, the siberian wildrye EsSTB1 gene disclosed by the invention can be used for remarkably increasing the number of branches of a plant, reducing the plant height and delaying flowering. The method is suitable for popularization and application in the biotechnology field.

The invention relates to the technical field of computer vision and soybean plant phenotype measurement, and discloses a soybean plant phenotype analysis method, system and device based on three-dimensional reconstruction, and the method comprises the following steps: setting a device for carrying out multi-view image collection on a soybean plant to collect multi-view soybean plant images; and an end-to-end soybean plant leaf phenotype measurement model taking Pointnet Transform as a trunk is constructed, and the model can directly predict key phenotype characteristics such as leaf area and leaf perimeter from high-precision leaf point cloud data. Discrete point cloud voxelization processing needs to be carried out before the model is constructed, and conditions are provided for semantic segmentation. According to the method, automatic acquisition of the soybean plant point cloud, automatic segmentation of the soybean plant point cloud and automatic measurement of the soybean plant leaf point cloud phenotype are realized, a data basis is provided for soybean plant phenotype analysis, and high-throughput and intelligent soybean plant phenotype analysis is realized.

The invention discloses a PVA / urea / CC lignocellulose composite mulching film as well as a preparation method and application thereof, and belongs to the technical field of agricultural mulching films. The composite mulching film disclosed by the invention is obtained by adding PVA (Polyvinyl Alcohol) into a corncob lignocellulose HTP-CC dispersion liquid subjected to hydrothermal pretreatment, then sequentially adding glutaraldehyde, urea and glycerol and carrying out cross-linking reaction. The mechanical property of the PUCH mulching film prepared by the invention meets the GB / T35795-2017 standard, and the PUCH mulching film has excellent water vapor barrier property, ultraviolet shielding property, urea controlled release property, heat insulation property and biodegradability. The characteristics not only can promote crop growth, but also can reduce agricultural environmental pollution. Therefore, the PUCH mulching film shows huge potential to replace the traditional plastic mulching film, and has important application prospects in agricultural planting.

The invention relates to a soil microorganism recovery index processing method and system and electronic equipment. The method comprises the following steps: collecting a soil sample in a gradient sample area, and measuring soil microbiological indexes and soil attributes; taking the soil microorganism indexes as a mother sequence, taking the soil attributes as subsequences, calculating correlation coefficients and correlation degrees between the subsequences and the mother sequence, and determining key soil attributes influencing soil microorganism recovery; determining a weight value of the key soil attribute; based on the numerical values of the key soil attributes in the original ecological reference area and the damaged unrepaired area, combining the weight values of the key soil attributes, and adopting an improved soil restoration index model to calculate and obtain a soil microorganism restoration index; the technical problem that in existing mining area ecological restoration evaluation, an original ecological system is not used as a benchmark, and the soil microorganism restoration degree cannot be quantitatively represented is solved, and the technical effect of achieving objective, comparable and quantifiable accurate evaluation of the soil ecological function restoration degree is achieved.

The invention discloses application of a tomato SlPRMT4a gene in improvement of low-temperature resistance of tomatoes and a method for improving the low-temperature resistance of the tomatoes. According to the method, the low-temperature resistance of the tomatoes is remarkably improved by knocking out the SlPRMT4a gene in the tomatoes, and the coding sequence of the SlPRMT4a gene is shown as SEQ ID NO.1. The invention further discloses a method for improving the low-temperature resistance of the tomatoes. The method disclosed by the invention has the advantages that the regulation effect of the SlPRMT4a gene in the low-temperature resistance of the tomato is disclosed for the first time, the low-temperature resistance of the tomato is obviously improved by knocking out the gene, a theoretical foundation is laid for researching the resistance of the tomato to a low-temperature stress, a gene resource is provided for cultivating a new variety of the low-temperature-resistant tomato, and energy conservation and consumption reduction are realized for winter and spring production of the greenhouse vegetable industry. Long-term stable and balanced supply of vegetable products is facilitated; and the method has important practical application value.

The invention discloses a pepper field prodenia litura adult trapping and killing device and method. The pepper field prodenia litura adult trapping and killing device comprises an AI adult prediction system, an insect trapping device, a high-voltage power grid killing device, an insect corpse collecting device and an energy supply device. The AI adult prediction system is in communication connection with the insect trapping device and is used for monitoring prodenia litura adults in real time and sending a starting signal to the insect trapping device; the insect trapping device carries a prodenia litura sex attractant and is used for releasing the prodenia litura sex attractant to trap adults of prodenia litura after receiving the opening signal; the high-voltage power grid killing device is used for killing adults through cooperation of contact electric shock and air electric shock; the insect corpse collecting device is arranged below the high-voltage power grid killing device and is used for collecting killed insect corpses; the energy supply device is electrically connected with the AI adult prediction system, the insect trapping device and the high-voltage power grid killing device and supplies power to all electric components. Non-chemical, accurate, environment-friendly and efficient trapping and killing of the prodenia litura adults in the pepper field and stable and long-acting operation of the device are realized.

Methods, systems, and computer program products for implementing a soil analysis process. A set of soil data may be received at a device from one or more soil sensors. The one or more soil sensors may be coupled to a portion of an agricultural machine configured to be in contact with soil. The device may be configured to analyze soil when a portion of the one or more soil sensors is in contact with the soil. Spectral data and soil conductivity and / or capacitance data may be obtained based on the collected set of soil data. Analyzed soil data may be determined based on the spectral data and soil conductivity and / or capacitance data. The analyzed soil data may be provided to a user device configured to display a visual representation of at least part of the analyzed soil data.

The invention belongs to the technical field of plant molecular biology, and discloses an application of a soybean GmSW10 gene in reducing soybean plant height, grain weight and grease content and / or increasing protein content. The CDS sequence of the soybean GmSW10 gene is as shown in SEQ ID NO: 1. Knockout of the soybean GmSW10 gene can directly influence the plant height, the grain weight, the oil content and the protein content of soybean seeds, after the soybean GmSW10 gene is knocked out, the weight of soybean seeds and hundred grains is remarkably reduced, the plant height is reduced, the protein content is increased, and the oil content is reduced, which indicates that the GmSW10 gene is a key gene for regulating and controlling the plant height, the grain weight, the oil content and the protein content of the soybean, and the GmSW10 gene can be used for preparing the soybean GmSW10 gene for regulating and controlling the plant height, the grain weight, the oil content and the protein content of the soybean. And a new genetic resource is provided for genetic improvement of soybeans.