24 results about "Rice wheat cropping" patented technology

Disclosed is a rice and wheat nitrogen nutrition multispectral diagnosis method for precise fertilization by unmanned aerial vehicles (UAVs), including: step 1, acquiring multispectral UAV remote sensing images and collecting agronomic parameters of rice and wheat, and establishing a nitrogen nutrition spectral diagnosis model; and step 2, calculating a critical nitrogen concentration in aboveground parts of rice and wheat based on a critical nitrogen concentration dilution model for amount of dry matter, and further obtaining a critical nitrogen uptake; calculating an actual nitrogen uptake in the aboveground parts of rice and wheat based on the nitrogen nutrition spectral diagnosis model; and obtaining a recommended nitrogen topdressing amount for rice and wheat during corresponding stages based on the critical nitrogen uptake and the actual nitrogen uptake. The present disclosure ensures stable yields of rice and wheat while reducing input of chemical fertilizers and labor, presenting a promising application prospect.

The invention provides a grain impurity rate and breakage rate monitoring system and method for a combine harvester. The grain impurity rate and breakage rate monitoring system comprises a grain sampling device, an image acquisition device and a control device, the grain sampling device is installed on the side wall of the vertical grain conveying barrel, a grain inlet of the grain sampling device is connected with a grain outlet hole in the side wall of the vertical grain conveying barrel through a hose, and a grain outlet of the grain sampling device is connected with a feeding port of the image acquisition device through a connecting pipe; the image acquisition device is connected with the control device, an image acquisition module of the control device controls the image acquisition device to acquire a grain image, and online calculation of the impurity rate and the breakage rate of the grain is realized on the grain image through a YOLOv8-Seg instance segmentation model of the image processing module in combination with an impurity rate and breakage rate mathematical model; finally, a detection result is displayed on a display screen in real time, visual numerical values can be provided for an operator of the combine harvester, and the operator is helped to adjust working parameters of the harvester. The method can be used for harvesting rice, wheat, oilseed rape and soybeans, and has wide applicability.

The invention relates to a numerical mode simulation method for CO2 flux of high-resolution rice, wheat and corn, which comprises the following steps: calculating a vegetation index and a land surface water index, and carrying out inversion to obtain key vegetation parameters of a land ecosystem; the meteorological data and the topographic data are processed, meteorological field initial and boundary condition files are generated, and CO2 chemical initial and boundary condition files are generated; integrating the gridded artificial source CO2 emission data file; applying the optimized photosynthetic and respiratory action parameters to a photosynthetic and respiratory action calculation formula of the terrestrial ecosystem, and constructing a CO2 flux simulation system of the crop system; outputting the CO2 flux of the rice, the wheat and the corn in the simulation area. The method has the advantages that CO2 flux seasonal change characteristics in the key phenological period in the growth process of rice, wheat and corn are simulated, carbon cycle characteristics in the growth process of crops can be better reflected, and more reliable data support is provided for ecological meteorological research.

The invention relates to the technical field of intelligent monitoring, and discloses a farmland grain planting condition dynamic monitoring method and system and a storage medium, and the method comprises the steps: obtaining a multi-temporal optical remote sensing image of a target area, and reconstructing the multi-temporal optical remote sensing image to obtain a high-resolution farmland image; performing feature extraction and crop identification on the high-resolution farmland image to obtain a crop type distribution diagram; and performing multi-time comparative analysis on the crop type distribution diagram to obtain cultivated land utilization change data, and generating a cultivated land grain planting condition monitoring report based on the cultivated land utilization change data. Precise distinguishing between grain crops such as rice, wheat and corn and commercial crops is achieved, fine non-grain changes are effectively recognized, and the accuracy of dynamic monitoring of cultivated land and grain planting conditions is improved.

The invention discloses a preparation method and application of a selenium nano liquid fertilizer, and belongs to the technical field of selenium-rich yield-increasing foliar fertilizers for crops. The preparation method comprises the following steps: firstly, crushing fresh vegetables, mixing the crushed vegetables with fresh yellow serofluid, homogenizing under specific conditions, filtering to remove residues, and adjusting the pH value of filtrate to 2.0-4.0; then adding Na2SeO3, and carrying out a stirring reaction to generate selenium nanoparticles with the particle size of 20-80 nm; and finally, fixing the volume to a target volume by using fresh yellow serofluid, and continuously stirring to obtain the selenium nano liquid fertilizer. The selenium nanoparticles are efficiently synthesized from natural reducing substances in plants, the reaction time is short, chemical reagents or microorganisms do not need to be added, the prepared liquid fertilizer can be stably stored for 6 months at the room temperature in a dark environment, meanwhile, resource utilization of the yellow serofluid is achieved, and the liquid fertilizer has multiple benefits of selenium enrichment, yield increase, environmental protection and the like and is suitable for large-scale popularization and application. The method is suitable for selenium-enriched yield-increasing planting of various crops such as rice, wheat and corn.

The invention relates to the field of agricultural machinery, in particular to a miniature roller harvester for a muddy field in a mountainous area, which comprises five parts, namely a header assembly with a grain pusher, a threshing assembly with an auger for discharging, a roller wheel with a bearing bracket, a power source and other auxiliary equipment (a transmission chain, a tray and the like). The header assembly of the grain pushing device can accurately control the harvesting angle of a cutting bucket and push harvested materials into a threshing cylinder. And the threshing device is connected with the header, has the functions of crushing, threshing, fine selection, grass flying and the like, and quickly discharges grains through an auger at the lower part of the stripping device. The rolling barrel wheel with the bearing support is high in trafficability; the invention has the main advantages that the structure is simple, the size can reach 1m width * 1.5 m length (without a handle), the weight can reach within 100KG, and the cost price can reach within 3000 yuan. The rolling barrel wheels can walk in a muddy field, and for a field ridge which is higher than one meter, the rolling barrel wheels can directly walk on the tree strips through the rolling wheels only by placing two tree strips at the height difference position. The device can be used for threshing any mountain fields which cannot be threshed by a large harvester, is low in price and simple in structure, and can be used for directly threshing crops such as rice, wheat and oilseed rape. The harvester is a good helper for helping farmers to become rich and is a necessary small harvester in farmer houses. And the physical experiment is reliable and stable.

Disclosed is a rice and wheat nitrogen nutrition multispectral diagnosis method for precise fertilization by unmanned aerial vehicles (UAVs), including: step 1, acquiring multispectral UAV remote sensing images and collecting agronomic parameters of rice and wheat, and establishing a nitrogen nutrition spectral diagnosis model; and step 2, calculating a critical nitrogen concentration in aboveground parts of rice and wheat based on a critical nitrogen concentration dilution model for amount of dry matter, and further obtaining a critical nitrogen uptake; calculating an actual nitrogen uptake in the aboveground parts of rice and wheat based on the nitrogen nutrition spectral diagnosis model; and obtaining a recommended nitrogen topdressing amount for rice and wheat during corresponding stages based on the critical nitrogen uptake and the actual nitrogen uptake. The present disclosure ensures stable yields of rice and wheat while reducing input of chemical fertilizers and labor, presenting a promising application prospect.

The invention belongs to the technical field of gene engineering, and discloses application of a Camellia oleifera CoSPX-MFS3 gene in improvement of phosphorus absorption of plants, and the nucleotide sequence of the Camellia oleifera CoSPX-MFS3 gene is as shown in SEQ ID NO.1. The invention further discloses a preparation method of the Camellia oleifera CoSPX-MFS3 gene. The plant is any one of dicotyledonous plants or monocotyledonous plants. The dicotyledonous plant is any one of arabidopsis thaliana, tobacco or tomato; the monocotyledonous plant is any one of rice, wheat or corn. The low-phosphorus stress can induce the expression of the gene, and the abundance in roots and fruits is the highest. The CoSPX-MFS3 is constructed to an overexpression vector pBI121, and the overexpression vector pBI121 is converted into the silver gray poplar, so that a positive strain is obtained. The invention discloses the application of the Camellia oleifera CoSPX-MFS3 gene in improvement of phosphorus absorption of the plant for the first time, and experiments carried out in the Populus arvensis show that the Populus arvensis plant over-expressed with the CoSPX-MFS3 gene can significantly improve the phosphorus absorption capacity of the plant.

The invention discloses a preparation method and application of a radix angelicae pubescentis extract, and particularly relates to the technical field of agricultural biology. The preparation method comprises the following steps: crushing radix angelicae pubescentis, sieving with a 40-100-mesh sieve, extracting with absolute ethyl alcohol, and concentrating under reduced pressure to obtain a pasty extract; in the aspect of application, the seed soaking agent is applied to rice, wheat or corn planting, for example, seed soaking treatment is performed on rice, wheat or corn, and the concentration is 10-5000 mg / L, preferably 500 mg / L. The extract is natural, safe and environment-friendly, and conforms to the development strategy of green agriculture. The fertilizer can promote rapid growth of rice, wheat or corn in the seedling stage, help to establish ecological competitive advantages, and relieve weed prevention and control pressure; and the resistance of rice, wheat or corn to adversities such as drought, salt stress and the like can be enhanced. Compared with a traditional growth promoting material and a compound preparation, the preparation process is simple and convenient, the cost is low, more farmers can accept the growth promoting material, breakthrough progress is brought to the rice, wheat or corn planting industry, and the development of a planting area is promoted.

The invention discloses application of an epiregulatory factor gene in regulation of plant heat resistance. The epiregulatory factor gene (TaMET) is identified from a wheat genome for the first time. The gene is subjected to transient overexpression in wheat Fielder, and it is found that wheat can be more sensitive to heat expression. The homologous gene (OsMET) of the gene in rice is subjected to conservative structural domain analysis to find that the gene is an SAM dependent type methylated transferase gene, and the modification level of histone H3K27me3 can be influenced. Research finds that overexpression of the gene makes the plant more sensitive to heat, knockout of the gene can significantly improve the heat resistance of rice Nipponbare, that is, the gene belongs to a negative regulation factor of rice heat resistance, for example, deep analysis of a mechanism of the gene or a homologous gene thereof is beneficial to excavation of heat-resistant genes in rice and wheat.

The invention belongs to the technical field of gene engineering, and particularly discloses application of millet SiMPK6 protein or a coding gene thereof in regulation and control of high light stress resistance of plants. Experiments prove that the SiMPK6 gene positively regulates the stress of plants on highlight, can maintain a relatively high photosynthetic rate under adversity, and can be used for modifying C3 plants and improving the highlight resistance of the C3 plants. The specific operation comprises the following steps: performing codon optimization on a coding gene of the millet SiMPK6 protein aiming at C3 plant preference, and constructing a recombinant expression vector containing a target gene; introducing the recombinant expression vector into host bacteria to obtain recombinant bacteria; transforming the recombinant bacteria into a receptor plant, screening out a positive plant, and culturing to obtain a transgenic plant with enhanced high light stress resistance; the C3 plants include but are not limited to rice, wheat, soybeans, potatoes, cotton and the like.

The application discloses a rice-wheat-oil dual-purpose precision seed feeding device suitable for high-speed operation and belongs to the technical field of agricultural machinery. The seed feeding device comprises a dual-purpose seed box, a seed feeding device shell, a power source, a seed feeding mechanism, a spiral inclined seed stirring device and a transmission system. The bottom of the dual-purpose seed box is fixedly connected with the seed feeding device shell. The seed feeding mechanism and the spiral inclined seed stirring device are arranged in parallel inside the seed feeding device shell and are driven by the power source through the transmission system. The seed feeding mechanism comprises a plurality of rice-wheat-oil dual-purpose hole wheels arranged in a spiral manner. The outer surface of the rice-wheat-oil dual-purpose hole wheel is uniformly provided with a plurality of wedge-shaped structure hole types along the circumference. The side wall surface of the hole type comprises a plane part at the upper part and a curved surface part at the lower part, and the surface of the curved surface part is in the shape of a brachistochrone. The seed feeding device can realize high-speed stable precision seed feeding and can meet the requirements of rice, wheat, oilseed rape and other variable scale grains.

The present application relates to the field of agricultural biotechnology, and particularly relates to a CEPro722 promoter and application thereof.The CEPro722 promoter comprises a nucleotide sequence as shown in SEQ ID NO.1 or a nucleotide sequence as shown in SEQ ID NO.2.The present application is screened from a GRMZM2G069722 gene, and the CEPro722 promoter can drive gene expression in plants such as rice, wheat or corn; and particularly, the promoter can drive high and stable expression in various tissues such as plant callus, leaf in the vegetative growth period, young ear and seed, and can replace a non-plant source promoter.The CEPro722 promoter provided in the present application has important significance in the field of plant genetic engineering, and can effectively reduce potential safety risks of transgenic plants caused by exogenous DNA.

The invention relates to expression of a recombinant nitrogenase synthetic pathway in non-leguminous plants. According to the invention, 11 genes (nifB, nifH, nifD, nifK, nifE, nifN, nifX, hesA and nifV) from Paenibacillus polymyxa and 4 genes (nifU, nifS, nifF and nifJ) from Klebsiella oxytoca are introduced into non-leguminous plants such as rice, wheat, corn, arabidopsis thaliana or cotton, and the total 15 nitrogen fixation genes are introduced into the non-leguminous plants such as rice, wheat, corn, arabidopsis thaliana or cotton, so that the plants obtain the independent nitrogen fixation capability, the chemical nitrogen fertilizer consumption required by the growth of the non-leguminous plants is reduced, and the ecological environment is improved.

The application relates to the technical field of intelligent monitoring, and discloses a farmland planting situation dynamic monitoring method and system and a storage medium, the method comprising the following steps: acquiring multi-temporal optical remote sensing images of a target area, and reconstructing the multi-temporal optical remote sensing images to obtain high-resolution farmland images; performing feature extraction and crop identification on the high-resolution farmland images to obtain a crop type distribution map; performing multi-temporal comparison analysis on the crop type distribution map to obtain farmland utilization change data, and generating a farmland planting situation monitoring report based on the farmland utilization change data; the application effectively solves the quality degradation problem of satellite remote sensing images in the transmission process, realizes accurate differentiation of rice, wheat, corn and other food crops and economic crops, effectively identifies subtle non-grain changes, and improves the accuracy of farmland planting situation dynamic monitoring.

The invention belongs to SaHKT1; the invention relates to the technical field of application of SaHKT1, 8 genes, in particular to SaHKT1; the invention relates to an application of a gene 8 of Spartina alterniflora SaHKT1, Spartina alterniflora SaHKT1; according to the application of the gene 8 in improving the salt tolerance of plants, the plants are rice, wheat, corn, cotton or other crops needing salt tolerance improvement, and the spartina alterniflora SaHKT1; the nucleotide sequence of the coding region of the gene 8 is as shown in SEQ ID NO: 6.

The utility model relates to the technical field of threshing devices, and discloses a rice and wheat dual-purpose harvester threshing device which comprises a shell, the outer wall of the shell is fixedly connected with a transmission motor, the output end of the transmission motor penetrates through the shell and is fixedly connected with a transmission wheel, and the outer wall of the transmission wheel is in transmission connection with a transmission belt. A threshing motor is arranged on the outer wall of the shell, a threshing wheel is fixedly connected to the output end of the threshing motor, a filter plate is slidably connected to the inner wall of the shell, and a filter assembly is arranged in the shell. According to the threshing device of the dual-purpose harvester for rice and wheat, a threshing motor is matched with a transmission gear through a rotating gear, so that two sets of threshing wheels rotate in the same direction to thresh wheat ears, a filter plate is pushed by an electric push rod to reciprocate, at the moment, wheat grains fall into a discharge port, and an attaching plate blocks the outer wall of the filter plate to prevent wheat husks from being mixed with the wheat grains; the wheat husks move on the inclined filter screen and can roll down along with gravity, so that the wheat husks are fully separated from wheat grains.

The invention discloses a crop disease identification method and device based on a fusion network architecture, a medium and a product, and relates to the technical field of crop disease identification, and the method comprises the steps: obtaining a target image; the target image is an image of a to-be-identified crop, and the to-be-identified crop is rice, wheat, corn, tomato, cotton or tea; inputting the target image into a crop disease recognition model to obtain a disease category of the to-be-recognized crop; the crop disease recognition model is obtained by training an image classification network by using a training data set, and the image classification network is constructed based on a convolutional neural network and a Transform network. According to the invention, the crop disease identification precision is improved.

The invention discloses an autonomous decision-making and water and fertilizer integrated intelligent regulation and control device for agricultural irrigation, which comprises a sensing module, a decision-making module, a water and fertilizer regulation and control module, an irrigation execution module, a communication module and a data storage and alarm module, the modules realize bidirectional data interaction through a CAN bus or an RS485 bus, the bus communication rate is not lower than 115200bps, and the data storage and alarm module is connected with the communication module. The data transmission delay is less than or equal to 100ms; the wide adaptation capability is that multiple crops such as rice, wheat and corn are supported, complex soil types such as brown soil and moisture soil are adapted, the equipment structure is modularized, the equipment can be flexibly expanded according to the farmland scale, the application threshold of small and medium-sized peasant households is reduced, and the technology permeability is promoted to be improved.

The invention relates to a fermentation process of a straw organic fertilizer, and belongs to the field of biological ferment.The fermentation process is characterized in that the fermentation period can be remarkably shortened through the synergistic effect of cellulose thermophilus, streptomyces thermophilus, bacillus subtilis, lactobacillus plantarum, azotobacter chroococcum and geobacillus stearothermophilus in a complex microbial inoculant in cooperation with a segmented fermentation technology, and the fermentation rate can be increased within 20 days; the fermentation is basically completed and the fermentation time is effectively saved. The straw returning machine can be widely applied to straw returning of rice, wheat, corn and the like.

1. The name of this design product: Rice field straw returning device. 2. Purpose of the product of this design: Used for crushing and spreading the straw and stubble of crops such as rice and wheat back into the fields. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The application relates to the technical field of new pesticide compounds, and discloses a quinazolin-2,4-dione-containing compound, a preparation method and application thereof, and the compound has a structure shown in formula (I). The quinazolin-2,4-dione-containing compound provided by the application has excellent herbicidal activity, and has excellent herbicidal activity on weeds in major crops such as rice and wheat and some important economic crops, especially on resistant weeds, and has good safety on non-target crops.

The invention discloses a biological preparation capable of planting and producing edible and medicinal functional grains and mushrooms and a preparation method of the biological preparation. The biological agent is prepared from hydrogen-rich water, metarhizium anisopliae, paecilomyces lilacinus, verticillium chlamydosporium, calcium ginsenoside extraction powder, monopotassium phosphate, gibberellic acid and photo-hydrocarbon biological bacteria according to specific parts by weight through the steps of anaerobic reverse propagation, stirring fusion, static fermentation and the like. The preparation is applied to planting of crops such as rice, wheat, corn, soybeans, fruits, vegetables or mushrooms, the content of plant calcium, ginseng notoginsenoside, SOD enzyme, selenium element and carbohydrate in the product can be remarkably increased, and nutrient enrichment and functional improvement of the crops are achieved. The preparation is simple in preparation process, low in cost and stable in effect, the problem that nutrient elements are insufficient in traditional planting is solved, and development and application of edible and medicinal healthy food are promoted.

The invention relates to the technical field of gene engineering, and discloses application of a gramineous conserved gene REP4 in promoting root growth, improving nitrogen utilization efficiency and / or increasing yield. According to the invention, the root specific expression small peptide hormone coding gene OsREP4 in rice is identified, and the overexpression and near-isogenic line materials of the gene can promote the growth of the rice root, improve the nitrogen utilization efficiency and increase the yield; the overexpression and near-isogenic line of the corn homologous gene ZmREP4 can also significantly promote the growth of corn roots, improve the nitrogen utilization efficiency and increase the yield. Mature small peptides synthesized according to REP4 protein sequences in gramineous crops such as rice, wheat and corn are crossly applied under extremely low concentration, and the root growth and nitrogen absorption capability of the rice, the corn and the wheat can be remarkably improved. When the OsREP4 mature small peptide secreted and expressed by the bacillus subtilis is directly applied to soil, the growth of a rice root system can be obviously promoted, and the yield can be increased.