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42 results about "Field corn" patented technology

Field corn, or grain corn, is a North American term for maize (Zea mays) grown for livestock fodder (silage), ethanol, cereal and processed food products. The principal field corn varieties are dent corn, flint corn, flour corn (also known as soft corn) which includes blue corn (Zea mays amylacea), and waxy corn.

Field corn and wheat drought tolerance data analysis and monitoring method

The invention relates to the technical field of agricultural production, in particular to a field corn and wheat drought tolerance data analysis and monitoring method which comprises the following steps: S1, data acquisition: acquiring environment and physiological data of field corn and wheat based on a multi-source sensor; s2, data preprocessing: preprocessing the collected environment and physiological data, and integrating the environment and physiological data into comprehensive data; s3, a leaf angle regulation and control transpiration mechanism: analyzing the influence of the leaf angle change of the corn and wheat on illumination absorption and transpiration rate, optimizing the leaf angle in real time to adapt to the change of illumination intensity, and predicting the water consumption conditions of the corn and wheat under different illumination conditions; s4, drought tolerance analysis: evaluating the drought tolerance of corn and wheat. According to the system, the utilization efficiency of water resources is improved, healthy growth of crops in a drought environment is ensured, and the practicability of farmland management and the scientificity of decision making are improved.
Owner:山东省农业技术推广中心(山东省农业农村发展研究中心)

Corn phenotype parameter extraction method based on point cloud data

The invention discloses a corn phenotype parameter extraction method based on point cloud data. The method comprises the following steps: step 1, constructing an experimental data set; step 2, corn point cloud segmentation; and step 3, corn phenotype parameter extraction. The method constructs a corn point cloud data set, deeply explores a segmentation technology of a corn population and organs thereof based on three-dimensional point cloud data, can realize complete extraction and segmentation of the population and a single corn plant, accurately extracts field corn phenotype parameters, is not only suitable for phenotype parameter extraction of a single corn plant, but also suitable for phenotype parameter extraction of a corn population, and improves the extraction efficiency of the corn population. The method shows high applicability and accuracy, provides an effective technical means for corn phenotype analysis, and can provide an automatic, efficient and low-cost solution for accurate measurement of crop individual phenotype information.
Owner:HEILONGJIANG CYBERSPACE RESEARCH CENTER (HEILONGJIANG INFORMATION SECURITY EVALUATION CENTER HEILONGJIANG ACADEMY OF NATIONAL DEFENSE SCIENCE & TECHNOLOGY) +1

Compound microbial fertilizer and application thereof in field planting

PendingCN119570653APromote production increaseImprove fertilityBiocidePlant growth regulatorsToxicologyBacilli
The invention discloses a compound microbial fertilizer and application thereof in field planting. The survival rate of the paenibacillus mucilaginosus HX-02 disclosed by the invention can be up to 62.8% after 170d under the condition of 38% of nitrogen, phosphorus and potassium. The strain is organically combined with bacillus velezensis RKN1111 and a nitrogen-phosphorus-potassium inorganic fertilizer (N + P2O5 + K2O = 38%), the compound microbial fertilizer is developed, the viable count of effective bacteria is not less than 1.5 billion / g, and the viable count of paenibacillus mucilaginosus is not less than 0.5 billion / g. The compound microbial fertilizer taking the strain as a main functional bacterium is applied to field corn planting, can replace part of chemical fertilizers and increase soil fertility, can reduce the use amount of the chemical fertilizers by 15.56%, and achieves the effects of promoting the growth of field crops and increasing the yield by 10.2%. The paenibacillus mucilaginosus HX-02 is separated from soil, is harmless to human, livestock and environment, and meets the requirements of green plant protection and agricultural sustainable development.
Owner:HEBEI UNIVERSITY

Insect pest semi-supervised target detection method combining active learning and multi-scale view learning

The invention relates to an insect pest semi-supervised target detection method combining active learning and multi-scale view learning. The method comprises the following steps: constructing a semi-supervised target detection data set; performing data enhancement on the semi-supervised target detection data set; constructing a semi-supervised model and generating a pseudo label; performing multi-scale view learning through the student model to obtain a multi-scale view prediction result; performing semi-supervised training; performing active learning, and updating the semi-supervised target detection data set; and inputting a to-be-detected field corn image into the finally trained teacher model to obtain a final pest detection result. According to the method, active learning is combined to select some data which is beneficial to the model and can effectively improve the performance for labeling, and the labeling cost is utilized to the maximum extent; adding a multi-scale view learning structure, and capturing effective information; and finally, under the condition of limited 20% annotation data, the detection precision of more than 80% annotation data can be realized, and the annotation cost is greatly saved.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Crop growth evaluation method based on depth image

The invention discloses a crop growth assessment method based on a depth image, and belongs to the technical field of crops. A crop growth assessment method based on a depth image comprises the following steps: S1, training a growth classification model: widely obtaining RGB images of field corn in different growth periods in the vertical direction, and ensuring that samples in various growth environments and conditions are covered; the positions and areas of the corn leaves on the RGB image are accurately and comprehensively marked by professionals, and the marks comprise detailed information such as outlines, sizes and positions of the leaves; a large amount of labeled data is utilized, and an advanced machine learning algorithm is adopted to train a target recognition model, so that the corn leaves can be accurately and efficiently recognized; the invention aims to solve the problem that the generalization ability of a follow-up evaluation model is affected due to the fact that acquired samples are not rich and diversified enough because the adaptability of an existing image acquisition mode is relatively limited.
Owner:INST OF AGRI ECONOMICS & INFORMATION HENAN ACADEMY OF AGRI SCI

Arthrobacter GD-20 and application thereof in carbon sequestration and phosphorus solubilization

ActiveCN119391584APromote high-quality developmentAgriculture tools and machinesBacteriaMicroorganismPhotovoltaic industry
The invention relates to the technical field of microbial carbon sequestration, in particular to arthrobacter GD-20 and application thereof in carbon sequestration and phosphorus solubilization. The invention provides an arthrobacter sp. GD-20 strain with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.31727. The arthrobacter sp. GD-20 strain is provided by the invention. The arthrobacter GD-20 provided by the invention is an arthrobacter separated from saline-alkali photovoltaic field corn field soil, has carbon sequestration capacity and phosphate solubilizing capacity, can tolerate acidic conditions, has wide adaptability to oligotrophic conditions, provides a strain resource for improving the carbon sequestration and emission reduction capacity of saline-alkali soil, and has a wide application prospect. Technical support is provided for deeply knowing the microorganism regulation process of the saline-alkali soil nutrient substance occurrence form, a foundation is laid for providing a photovoltaic field soil microorganism improvement technology, and high-quality development of the saline-alkali fragile area photovoltaic industry can be promoted.
Owner:PEKING UNIV +1

Method for accurately identifying germplasm of sweet-waxy corn

The invention discloses a method for accurately identifying sweet-waxy corn germplasm, and particularly relates to a method for identifying sweet-waxy corn germplasm, which comprises a first tracking process: a process from F3-generation seed budding to F4-generation seed maturation, including sweet-waxy gene DNA tracking marking after seed budding; sampling once 28 days after pollination, and measuring the thickness of soluble sugar, amylose, amylopectin and pericarp; extracting DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) of F3-generation plants in a After the F4-generation seeds are mature and picked, determining sweet-waxy gene DNA, determining amylose and amylopectin, and determining single-plant grain weight, hundred-grain weight and endosperm / embryo dry weight; a second tracking process: a process from germination of the F4-generation seeds to bearing of fresh sweet-waxy corn, including observation and recording of a field corn plant growth process; measuring the thickness of soluble sugar, amylopectin, amylose and pericarp 15 days after pollination; determining and analyzing the traits of the indoor test species; data analysis and germplasm scoring: comparing and analyzing the data obtained in the second tracking process, scoring the F4-generation seeds, and determining the germplasm quality of the F4-generation seeds.
Owner:QINGDAO AGRI UNIV +2

Three-dimensional phenotype segmentation and labeling system for field corn crops

The invention relates to the field of intelligent identification, and more specifically relates to a three-dimensional phenotype segmentation and labeling system for field corn crops, comprising: an initialization module for executing opening, loading and preprocessing tasks of field corn point cloud data files; the ground segmentation module is used for executing an automatic segmentation task of the corn plant population and the ground; the single plant identification module is used for executing a task of accurately segmenting single plants in the plant population and generating identification information; the skeleton classification module is used for executing skeleton calculation and data point category division tasks of the single-plant corn point cloud; the organ labeling module is used for executing stem and leaf organ structure division and labeling tasks of the single-plant corn point cloud; and the result interaction module is used for executing visualization of output data of the key steps of the modules and storage tasks of projection, segmentation, labeling and classification result data output by the modules.
Owner:CHINA AGRI UNIV

Point cloud-based corn seedling stage community plant distribution and characteristic parameter extraction method

The invention belongs to the technical field of three-dimensional measurement data processing, and particularly relates to a corn seedling stage community plant distribution and characteristic parameter extraction method based on point clouds, which comprises the following steps: segmenting a field corn seedling plant community point cloud to obtain a point cloud cluster of a stem part; clustering the projection points of the point cloud cluster of the stalk part on the XY plane based on DBSCAN; adopting a DBSCAN clustering result to initialize K-means clustering, and obtaining a plant distribution diagram; on the basis of the plant distribution diagram, data information between rows and columns is calculated through a threshold value method, and the data information between rows and columns comprises the number of plants, the number of rows and columns and data between rows and columns; based on the plant distribution diagram and the data information between rows and columns, the positions of seedling missing points are judged through a threshold value method; and calculating the plant height based on the distribution map and the dynamic fluctuation of the ground points. The functions of precise detection, plant counting, row-plant spacing measurement and missing seedling detection of densely distributed seedling-stage corn plants are realized, and particularly, the extraction of point cloud data of serious leaf staggering under the condition of dense planting is realized.
Owner:CHINA AGRI UNIV

Field corn row detection method, device and equipment based on line Anchor and medium

The invention relates to a field corn row detection method, device and equipment based on line Anchor and a medium, and the method comprises the steps: carrying out the multi-head self-attention operation of a horizontal compression matrix and a vertical compression matrix, so as to generate a first feature matrix and a second feature matrix, performing broadcasting operation on the first feature matrix and the second feature matrix, and adding the first feature matrix and the second feature matrix to generate a third feature matrix; the query matrix, the key matrix and the value matrix are spliced in a context enhancement module and then subjected to convolution operation to generate a fourth feature matrix, and the third feature matrix is subjected to convolution and then multiplied by the fourth feature matrix to determine an attention matrix; and adopting a preset loss function to regress seedling strip lines in the to-be-detected corn field image as a whole according to the first line Anchor and the attention matrix so as to determine a corn row detection result. According to the invention, the method can adaptively focus on the key area of the corn row, thereby improving the precise recognition of the corn row.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Field corn plant phenotype measurement method and system

The invention relates to a field corn plant phenotype measurement method and system, and the method comprises the steps: firstly employing an image collector to shoot an RGB image and a depth image of a field corn plant, then extracting a mask image from the depth image based on a clip module added in a YOLOv8 model, carrying out the mask processing of the RGB image, employing the YOLOv8 model to carry out the target recognition of the RGB image after the mask processing, and carrying out the measurement of the phenotype of the field corn plant. Then key point pixel coordinates output by the recognized target are determined, coordinate depths corresponding to the key point pixel coordinates are extracted from the depth image, camera coordinate system coordinates of the key points are calculated and then converted into world coordinate system coordinates, key points belonging to the same plant are determined through coordinate matching and pairing is carried out, and the target is obtained. And finally, according to the world coordinate system coordinates of the paired key points, calculating the ear height and the leaf included angle of the corn plant. According to the method, accurate analysis of the spike height and leaf included angle phenotype of the low-resolution image can be realized.
Owner:HUAZHONG AGRI UNIV

Equipment for disinsection of field corn

The utility model relates to the technical field of corn planting, in particular to field corn deinsectization equipment which comprises a base plate, the bottom of the base plate is fixedly connected with a water storage tank, the top of the base plate is fixedly connected with a transmission box, an inner cavity of the transmission box is movably connected with a rotating rod in a penetrating mode through a bearing, and the top of the transmission box is fixedly connected with a supporting cylinder. An inner cavity of the supporting cylinder is movably connected with a driving screw through a bearing, the surface of the driving screw is sleeved with an installation sliding block in a threaded mode, and the front side and the rear side of the installation sliding block penetrate to the outer side of the supporting cylinder and are fixedly connected with an inserting mechanism. The driving screw rotating forwards or reversely enables the mounting sliding block sleeved with the surface in a threaded mode to move upwards or downwards, the deinsectization lamp moves upwards or downwards along with the mounting sliding block, due to the fact that the heights of corn in all growth stages are different, the deinsectization height of the deinsectization lamp can be adjusted by rotating the rotating wheel, the deinsectization lamp and the corn are kept at the most ideal deinsectization height all the time, and the deinsectization effect is good. The deinsectization effect is more ideal.
Owner:YUNNAN MOST CAT BIOTECHNOLOGY CO LTD

Field corn well irrigation water and fertilizer integrated device and system

The invention relates to the technical field of agricultural irrigation, in particular to a field corn well irrigation water and fertilizer integrated device and system.The field corn well irrigation water and fertilizer integrated system comprises a water source system, a head hub system, a water conveying and distributing system and an irrigation system which are sequentially communicated; the filtering unit is provided with different filter combination modes according to different silt contents of a water source system; when the water quality is high-silt well water, the filtering unit adopts a combination of a centrifugal filter and a screen filter / laminated filter; when the water quality is high clay / colloid well water, the filter unit adopts a combination of a gravel filter and a screen filter / laminated filter; the water quality type of the filtering unit is configured to be one of a full-manual mode, a semi-automatic mode and a full-automatic mode. The system is used for solving the problems that an existing drip irrigation system is poor in applicability, not thorough in filtering, low in water and fertilizer integration degree and high in cost in a small-scale farmland.
Owner:SINOCHEM MODERN AGRI (HUBEI CO LTD +3

Combine harvesters for use in harvesting corn, and related methods

Combine harvesters are provided for use in harvesting seed corn from corn plants in fields. In connection therewith, a method of using such a combine harvester to produce seed corn for use in growing corn plants includes removing, by the combine harvester, ears of corn from corn plants in a field and separating the corn kernels from cobs of the ears of corn onboard the combine harvester while in the field. The method also includes collecting, by the combine harvester, a supply of the separated corn kernels for use as seed corn. In connection therewith, cold germination of the collected supply of corn kernels is at least about 75% and warm germination of the collected supply of corn kernels is at least about 75%.
Owner:MONSANTO TECHNOLOGY LLC

Method for calculating field corn irrigation water demand based on remote sensing and crop growth model

The invention provides a remote sensing and crop growth model-based field corn irrigation water demand calculation method. The method comprises the following steps of: constructing a microwave scattering model based on microwave remote sensing data, and constructing a thermal inertia model based on thermal infrared remote sensing data; learning a non-linear mapping relation between remote sensing data and ground actually-measured multi-layer soil moisture through a deep neural network, optimizing key parameters of a multi-source fusion model, and establishing calibration parameter values and soil moisture content parameter values of the multi-source fusion model under different hierarchies; on the basis of the difference of different soil layer moisture demands in different growth stages of the corn, the water amount needing irrigation is calculated in combination with a multi-layer soil moisture calculation result; according to the possible rainfall in the preset time period, combining the area of the region to obtain predicted rainfall; according to the intelligent irrigation decision-making system for the field corn, the remote sensing technology, the crop physiological model and meteorological prediction are organically combined, and a complete and practical intelligent irrigation decision-making system for the field corn is formed.
Owner:NEWCAPEC ELECTRONICS CO LTD

A method for constructing and estimating an index of photosynthetic capacity of a maize population

The application discloses a kind of corn population photosynthetic capacity index construction and estimation method, it is related to the field of agricultural products monitoring, comprising the following steps: S1: obtaining corn Pn, Gs, Ci and Tr four photosynthetic parameters, S2: using Akima spline curve interpolation method Pn, Gs, Ci and Tr measurement interval is shortened to one hour, S3: the fitting curve of four parameters is obtained, S4: the projected area under fitting curve is calculated, S5: the projected area is normalized, determine the weight of each projected area, S6: calculate the new index ODP of photosynthetic capacity, while providing ODP index feasibility verification method and estimation method.The application has the advantages that, more accurately reflect population photosynthetic capacity, consistent with the actual situation, can truly reflect the growth state of field corn.In addition, using unmanned aerial vehicle hyperspectral can quickly and accurately estimate the index, improve the efficiency of photosynthetic capacity identification.
Owner:YANGZHOU UNIV

Method for accurately and efficiently evaluating nitrogen absorption and soil nitrogen supply conditions by measuring nitrate content of bleeding sap of corn stalks

The invention discloses a method for accurately and efficiently evaluating nitrogen absorption and soil nitrogen supply conditions by measuring the nitrate content of bleeding sap of corn stalks. The method comprises the following steps: 1) culturing corn seedlings to grow to V8-V10 periods; 2) collecting stem bleeding sap in the morning of the second day after the plant is fully irrigated: transversely cutting the vertical stem in the second internode by using a blade until the stem is completely cut off; after standing for 5-60 minutes, bleeding sap seeps from the xylem from the cross section of the stalk, and after 5 minutes, the bleeding sap is condensed into liquid drops; using a sterile syringe to suck bleeding sap and transfer the bleeding sap into a centrifugal tube; after the bleeding sap is collected once and 3-10 minutes later, the bleeding sap is condensed into liquid drops again; collecting for multiple times to obtain bleeding sap meeting NO3 <-> determination requirements; 3, the NO3 <-> content of the stem bleeding sap is determined.According to the method, used consumables are simple and easy to obtain, the operation process is simplified, the method is easy to master, time is saved, and the method is especially suitable for obtaining nitrogen absorption phenotypes of large groups of corn in the field.
Owner:JIANGSU ACAD OF AGRI SCI

A method for automatically extracting corn stand loss

PendingCN122368812AData setAlgorithm
This invention belongs to the field of maize seedling information research technology, specifically involving an automatic method for extracting maize seedling absence rate information. The method includes: S1, creating a dataset by taking images of maize seedlings in the field using a drone; S2, labeling the dataset and training a deep learning model; S3, using the trained deep learning model to identify and detect maize seedlings in the field images; S4, fitting the seedling root position to the deep learning output detection information; S5, determining the maize seedlings in the same row based on density distribution; and S6, determining seedling absence based on kernel density estimation and calculating the absence rate. By using a drone to randomly sample a portion of the field and applying steps S4 to S6, the overall maize seedling absence situation in the drone-collected images can be obtained. This invention can solve the problem of how to achieve accurate and rapid seedling absence detection during maize growth and has good market application prospects.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

A corn yield prediction model based on multi-modal unmanned aerial vehicle data fusion

The application provides a method for predicting corn yield based on a multi-modal unmanned aerial vehicle, so as to accurately predict the corn yield in a farmland, and on one hand, provides a new method for yield evaluation of a corn crop, and on the other hand, provides a new idea for yield estimation of other crops. Compared with traditional research which is mainly based on single type remote sensing data and traditional machine learning methods, the yield prediction model obtained has poor robustness, and the multi-modal fusion unmanned aerial vehicle remote sensing data can effectively improve the yield prediction efficiency.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Movable field corn phenotype identification device

The utility model relates to a movable field corn phenotype identification device which comprises two or more first gear shafts, first supporting rods are arranged at the two opposite ends of each first gear shaft in a penetrating mode, motors are fixedly arranged at the two ends of each first supporting rod, and the outer sides of the output ends of the motors are sleeved with first baffles. One or more second supporting rods are fixedly arranged on the inner surface of the first baffle, the outer surfaces of the second supporting rods are sleeved with second gear shafts, the outer surfaces of the second gear shafts are sleeved with third gear shafts, the contact parts of the second gear shafts, the first gear shafts and the third gear shafts are all in an engaged state, and the third gear shafts are sleeved with first caterpillar bands. The outer surface of the middle of the first gear shaft is sleeved with a second crawler belt, a balancing weight is fixedly arranged on the lower surface of the inner side of the second crawler belt, a connecting rod is fixedly arranged on the lower surface of the outer side of the first crawler belt, and a phenotype sensor set is fixedly arranged at the lower end of the connecting rod.
Owner:XINJIANG ACAD OF AGRI SCI (XINJIANG BRANCH OF CHINESE ACAD OF AGRI SCI)

Portable standard shooting device for whole field corn plants

The utility model discloses a portable standard shooting device for a whole field corn plant, which belongs to the technical field of crop shooting devices and comprises a curtain assembly and a shooting support, and the curtain assembly is used for being fixed to the rear of the corn plant to provide a shooting background for the shooting support. The curtain assembly comprises a curtain support and a curtain storage part, the curtain support comprises a telescopic rod and triangular supporting legs, and the triangular supporting legs are connected to the lower end of the telescopic rod; the top end of the telescopic rod is connected with a flexible rod, the top end of the flexible rod is connected with a U-shaped clamping groove, and the U-shaped clamping groove and the flexible rod are arranged in a T shape; the curtain accommodating piece is detachably connected into the U-shaped clamping groove; the curtain storage part comprises a cylindrical curtain storage barrel, and the curtain is rolled in the curtain storage barrel; the shooting assembly comprises a telescopic rod and triangular supporting legs, the triangular supporting legs are connected to the lower end of the telescopic rod, and the upper end of the telescopic rod is connected with a camera clamping head.
Owner:GANSU ZHONGKEN JADE SEED IND CO LTD

On-line harvesting and threshing integrated treatment method for field corn

The invention belongs to the technical field of corn planting, and particularly relates to a field corn online harvesting and threshing integrated treatment method which comprises the following steps: S1, selecting an early-maturing corn variety for field sowing; s2, field water, fertilizer and chemical control management is carried out on the corn, chemical vigorous growth control is carried out in the early growth stage, irrigation and topdressing are not carried out in the 5-leaf to 9-leaf period, management in the middle growth stage is the same as common field management, and irrigation is completely eradicated in the milk-ripe stage and the mature stage in the later growth stage; s3, the corn kernel content x is measured in the physiological mature period of the corn, and the cut length of the straw is determined according to the kernel content and the width of the wide and narrow rows; when the water content of the corn kernels is less than or equal to 25%, mechanically harvesting the corn kernels by using a harvesting and threshing all-in-one machine; according to the method, technical guidance is provided for mechanical grain harvesting of corn, mechanical grain harvesting of field corn is facilitated, the labor efficiency is improved, meanwhile, the integrity of corn grains is improved, and the grain harvesting loss is reduced.
Owner:DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI

A method for extracting high-throughput leaf angle and leaf inclination angle distribution of field corn

The invention discloses a method for extracting the distribution of high-throughput leaf angles and leaf inclination angles of field corn, comprising the following steps: scanning and acquiring point cloud data of field corn; performing stem-leaf separation on the point cloud data of field corn; clustering the obtained stalk points of field corn using a density-based DBSCAN spatial clustering algorithm, and extracting the stalk points of each corn plant respectively; fitting the extracted stalk points of each corn plant using a least squares algorithm to obtain a stalk point fitting line of each corn plant; and calculating a multi-layer leaf angle distribution curve and a multi-layer leaf inclination angle distribution curve of field corn. The extraction method proposed by the invention can extract the distribution of leaf angles and leaf inclination angles of field corns with different growth periods, different varieties and different planting densities, realizes the dynamic monitoring of leaf angles and leaf inclination angles of corns of different varieties at different growth periods, and provides an effective tool for obtaining phenotypic information of field corn.
Owner:CHANGAN UNIV

A neural network model and system for corn lai estimation

ActiveCN122242583BAlgorithmNetwork model
The application discloses a neural network model and system for corn LAI estimation, relates to the technical field of deep learning, and a multi-source feature extraction network performs deep layer representation on input feature information, and enhances the fusion expression capability between different sources and different scale features. Then, inversion prediction values and trend prediction values are obtained through a physical inversion branch and a phenology trend branch, so that the model can not only maintain the physical interpretability of LAI estimation, but also reflect the timing law of continuous change of the corn LAI along with the phenology process. Meanwhile, the adaptive gating fusion network dynamically generates weights by taking accumulated temperature as a condition, can automatically adjust the contribution proportion of the physical inversion result and the trend prediction result according to different growth stages, thereby reducing the problem of large estimation deviation of a single model in a specific growth period, improving the stability, continuity and precision of the corn LAI estimation, and being suitable for field corn growth monitoring and farmland intelligent management.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Unmanned aerial vehicle image-based corn elongation stage water stress identification and segmentation method

The invention discloses a corn elongation stage water stress identification and segmentation method based on an unmanned aerial vehicle image, and belongs to the field of precision agriculture and image processing, and the method comprises the following steps: S1, collecting a field corn canopy image according to preset flight parameters through an unmanned aerial vehicle, and synchronously recording initial image information; s2, sequentially performing correction processing, illumination optimization processing, image segmentation and data enhancement processing on the initial image acquired in the step S1, and performing normalization processing to generate a data set; and S3, on the basis of the data set in the step S2, a corn moisture stress segmentation network model CornWS-Net with lightweight coding-decoding as a core framework is constructed, the model is composed of HFPM, MCAE, DPAE and SRD, a segmentation prediction result of the corn elongation stage moisture stress leaves is obtained through training, and a moisture stress level is output. By the adoption of the method, field corn water stress monitoring and precise irrigation can be achieved, and technical support is provided for intelligent management.
Owner:CHINA AGRI UNIV

Field corn inter-row root system in-situ observation device

The utility model discloses a field corn inter-row root system in-situ observation device relates to corn root system observation technical field, including root window (1), top cover (2), movable inner shell (3), movable fixer (4) and shooting device (5), shooting device (5) includes image acquisition equipment (8) and controller (9), root window (1) top is provided with the opening, and one side surface is transparent observation window (7), and the top of root window (1) is provided with the opening. The top cover (2) is arranged at the top of the root window (1), the movable inner shell (3) is arranged in the root window (1), and the movable fixator (4) is arranged on the side, opposite to the observation window (7), in the movable inner shell (3). The utility model solves the problems that the plant growth environment is damaged due to the installation or overlarge volume of the existing device, the multi-site rapid observation through a larger observation surface in a smaller operation space cannot be realized, and the investment cost is higher.
Owner:INSTITUTE OF CROP SCIENCE CHINESE ACADEMY OF AGRICULTURAL SCIENCES

A three-dimensional phenotype segmentation and labeling system for field corn crops

The present application relates to the field of intelligent identification, more particularly to a three-dimensional phenotype segmentation and labeling system for field corn crops, comprising: an initialization module for performing opening, loading and preprocessing tasks of field corn point cloud data files; a ground segmentation module for performing automatic segmentation tasks of corn plant groups and ground; a single plant recognition module for performing accurate segmentation of single plants in the plant group and generating identification information tasks; a skeleton classification module for performing skeleton calculation and data point category division tasks of single corn point clouds; an organ labeling module for performing stem and leaf organ structure division and labeling tasks of single corn point clouds; and a result interaction module for performing visualization of output data of key steps of each module and saving projection, segmentation, labeling and classification result data output by each module.
Owner:CHINA AGRI UNIV

Reverse beating and airflow directional separation coupling type corn straw cleaning and picking device

The invention discloses a reverse beating and airflow directional separation coupling type corn straw cleaning and picking device, and relates to the technical field of agricultural machinery, the reverse beating and airflow directional separation coupling type corn straw cleaning and picking device comprises a picking shell, a picking hammer claw mechanism, a reverse beating mechanism, an airflow directional separation mechanism and an auger conveying and smashing mechanism, the picking hammer claw mechanism is installed on the front side of the picking shell, and the reverse beating mechanism is installed on the rear side of the picking shell; the reverse beating mechanism is arranged at the upper position of the middle side of the picking shell and located between the picking hammer claw mechanism and the auger conveying and smashing mechanism, the airflow directional separation mechanism is installed in the reverse beating mechanism and coaxially arranged with the reverse beating mechanism in a differential mode, and the auger conveying and smashing mechanism is arranged on the rear side of the picking shell. The pickup hammer claw mechanism picks up and conveys field corn straw and entrained soil backwards, the reverse beating mechanism continuously stirs, combs and flaps a straw mixture through elastic teeth, mechanical stripping of attached soil and the entrained soil is achieved, the built-in airflow directional separation mechanism rotates at a differential speed to generate directional airflow, and the directional airflow is separated from the straw mixture through the reverse beating mechanism. And the separated fine soil is blown away in time and discharged out of a conveying area.
Owner:JILIN UNIVERSITY

A crop growth assessment method based on depth images

The application discloses a crop growth evaluation method based on a depth image and belongs to the technical field of crops. The crop growth evaluation method based on the depth image comprises the following steps: S1, growth classification model training: widely obtaining RGB images of field corn in different growth periods in the vertical direction, and ensuring that samples under various growth environments and conditions are covered; accurately and comprehensively labeling corn leaf positions and regions on the RGB images by professional personnel, and the labeling should include detailed information such as the outline, size and position of the leaf; using a large amount of data after labeling, training a target recognition model by using an advanced machine learning algorithm, and enabling the target recognition model to accurately and efficiently recognize the corn leaf; and the application is used to solve the problem that the adaptability of the existing image acquisition mode is also relatively limited, the obtained samples are not rich and diversified enough, and the generalization ability of a subsequent evaluation model is affected.
Owner:INST OF AGRI ECONOMICS & INFORMATION HENAN ACADEMY OF AGRI SCI

Sprinkling irrigation equipment for field corn planting

The utility model discloses sprinkling irrigation equipment for field corn planting, which comprises a water tank, a mounting frame is fixedly mounted at the rear end of the water tank, a threaded rod is rotatably connected in the mounting frame, a vertical seat is sleeved on the outer side of the threaded rod in a threaded manner, the top end of the vertical seat extends out of the mounting frame and is fixedly provided with a mounting seat, and sleeves are rotatably connected to two sides in the mounting seat. Spraying rods are fixedly mounted in the two sleeves, the ends, away from each other, of the two spraying rods extend out of the mounting base, the outer sides of the two spraying rods are fixedly sleeved with gear rings, the bottom ends of the two gear rings are in meshed connection with gears, and a plurality of spraying heads are fixedly mounted at the rear ends of the two spraying rods. According to the sprinkling irrigation equipment for field corn planting, in the walking process of a worker in a field, sprinkling irrigation operation can be automatically completed, the worker does not need to hold a spray gun by hand for sprinkling, the irrigation work is more convenient and labor-saving, meanwhile, the heights and sprinkling angles of the multiple nozzles can be adjusted according to use requirements, and different irrigation use requirements are met.
Owner:XINJIANG ACAD OF AGRI SCI (XINJIANG BRANCH OF CHINESE ACAD OF AGRI SCI)