125 results about "Crop acreage" patented technology

A computer-implemented method for crop type identification using satellite observation and weather data. The method includes extracting current and historical data from pixels of satellite images of a target region, generating temporal sequences of vegetation indices, based on the weather data, converting each timestamp of the temporal sequences into a modified temporal variable correlating with actual crop growth, training a classifier using a set of historical temporal sequences of vegetation indices with respect to the modified temporal variable as training features and corresponding historically known crop types as training labels, identifying a crop type for each pixel location within the satellite images using the trained classifier and the historical temporal sequences of vegetation indices with respect to the modified temporal variable for a current crop season, and estimating a crop acreage value by aggregating identified pixels associated with the crop type.

The invention relates to a winter wheat area estimation method based on remote-sensing time series data, which is based on the remote-sensing time series data, and comprises the steps that remote-sensing vegetation index time series data is converted into a wavelet coefficient spectrum by continuous wavelet conversion; wavelet coefficient binary images representing annual vegetation change characteristics of pixels in a study region are established on the basis; the wavelet coefficient binary images of a plurality of known winter wheat sampling points are superposed; standard wavelet coefficient binary images of winter wheat in the study region are generated; the wavelet coefficient binary images of the pixels in the study region and the standard wavelet coefficient binary images of the winter wheat are superposed one by one; winter wheat identification criteria are established after statistic superposition; the pixels are subjected to winter wheat identification one by one; and finally a winter wheat planting area of the whole study region is obtained by summarizing and computing. The method can effectively solve the problems that annual variance amplitude of the original vegetation index is inconsistent due to various factors, and has the advantages of high anti-noise capacity, good classification accuracy, wide application scope and the like.

The invention discloses a method and device for acquiring undulating surface sugarcane acreage based on a remote sensing image. The method comprises the steps that the pattern spot vector diagram and DME grid data of a sugarcane lot are acquired; the slope mean value of the pattern spot vector diagram is acquired according to the DME grid data; according to the slope mean value and a slope threshold value, the pattern spot vector diagram of the sugarcane lot is divided into a flat lot and a slope lot; the area of the flat lot is acquired; micro-face decomposition is carried out on the slope lot to acquire a number of adjacent plane facets, and the area of each plane facet is acquired; the areas of a number of plane facets are added to acquire the area of the slope lot; and the areas of two lots are acquired to acquire the area of the sugarcane lot. According to the invention, a high-precision digital elevation model is combined to carry out the topographic judgment of the sugarcane lot according to a plane-range vector acquired through remote sensing; fast fitting calculation of the real sugarcane acreage is realized through important terrain and boundary feature extraction; and an accurate data support is provided for policy formulation and production and management decision-making.

The invention relates to the technical field of crop cultivation, in particular to a technique of high-yield cultivation of rapes in a mountainous region, i.e. a high-yield planting method suitable for flue-cured interplanting of rapes in the mountainous region. The method comprises the following steps of: A, weeding prior to sowing; B, rapeseed sowing; C, spreading of fertilizer; D, weeding after sowing; E, field management; F, spreading of seedling fertilizer; G, cultivation of short and strong seedlings and prevention of lodging; H, prevention of aphids and powdery mildew; and I, growth and harvesting. The climate characteristics of much rainfall in the late summer and early autumn and rich resources of waste heat and the characteristics of large flue-cured planting area in the mountainous region can be utilized effectively. By adopting the cultivation method, compared with the yield of direct seeding, the total interplanting yield can be increased by 21.6-64.4 percent. The development space for rape growth can be expanded in the case of increasing scarcity of field resources. The method can be implemented easily, tillage-free interplanting, sowing under conditions with rainwater, spreading of fertilizer in holes and other methods are adopted, the production cost can be decreased greatly, the method can be promoted and applied in vast mountainous areas of Yunnan, the yield and efficiency of rape planting can be improved, and the income of farmers can be increased.

The invention provides a gridding crop planting layout optimization method, which comprises the following steps of: establishing a grid model for a target planting area to obtain potential per unit yield and suitable planting area of crops, minimum irrigation water demand of the crops, fertilization intensity of the crops, cultivated area and irrigation area data in each grid unit; and in combination with county-level statistical planting data of the target planting area, performing distribution to obtain crop planting data in each grid unit, and performing planting layout optimization based on a predetermined constraint condition by taking the minimum total irrigation water demand as an optimization target to obtain the crop planting area in each grid unit after optimization. The optimization method is carried out based on the grid units, the obtained optimization layout result is more accurate and detailed, crop planting layout adjustment can be scientifically guided, and the ecological environment problems such as underground water level decline can be effectively relieved.

The invention discloses a water body index variable coefficient-based rice sub-pixel recognition method. The method comprises the following steps of: S1, constructing a water body index, vegetation index and surface temperature time series data set; S2, getting rid of non-cultivated land pixels in a research area; S3, determining a period of a crop growth season according to a surface temperature; S4, calculating variable coefficients of water body indexes in each pixel growth season; S5, determining a relationship between water body index variable coefficients and rice planting area proportions; and S6, calculating a rice planting area proportion according to the variable coefficients of the water body indexes. According to the method, by utilizing the water requiring property of rice, the water body index variable coefficients are reduced along with the increase of the rice planting area proportions, and the water body index variable coefficients and the rice planting area proportions have prominent linear dependence. Through designing the variable coefficients of the water body indexes to recognize rice sub-pixels and calculating the planting area proportion, the method has the characteristics of being independent of prior knowledge, good in robustness, high in classification precision and strong in knowledge ability.

The invention particularly relates to a soybean and corn planting area identification method in the Jianghuai region based on a Sentinel-2 image. The soybean and corn planting area identification method comprises the following steps: A, acquiring a to-be-detected region satellite image shot by a Sentinel-2 satellite, and preprocessing the to-be-detected region satellite image; b, calculating separability between land cover types by adopting a JM distance, and selecting an image of an optimal classification time phase; c, classifying pixel points in the target area image through a classification algorithm; and D, calculating the planting area of the soybeans/corns according to the number of the pixel points classified into the soybeans/corns. According to the method, the Sentinel-2 image data with relatively high spatial-temporal resolution is utilized, and the related classification algorithm is combined, so that the soybeans and the corns in the Jianghuai region can be well identified. Using these steps, before the soybeans and the corns are harvested, soybeans and corns are identified and drawn in a main producing area with a broken planting structure in a relatively rapid and low-cost mode, and a relatively reliable spatial distribution result of the soybeans and the corns is obtained, so that a technical support is provided for extracting the planting areas of the soybeansand the corns in areas with complex planting structures and changeable climates.

The invention provides an agricultural insurance underwriting method. The method can be applied to the technical field of finance, and can also be applied to related aspects of micro-service data transmission of big data and distributed technologies. The agricultural insurance underwriting method comprises the following steps: determining a satellite remote sensing image at a planting plot of a current insured user based on insured user information, wherein the satellite remote sensing image comprising a plurality of sub-satellite remote sensing images of crops in different growth cycles in the planting plot; based on the at least one sub-satellite remote sensing image, judging the crop type and the planting area on the planting land parcel; grading the growth vigor of the crop based on the crop variety and the plurality of sub-satellite remote sensing images to obtain the growth vigor grade of the crop; calculating the estimated yield of the crop based on the crop variety, the planting area, the growth vigor grade, the current year meteorological data and the historical yield related data; and determining an underwriting claim settlement standard based on the estimated yield. The invention further provides an agricultural insurance underwriting system, equipment, a storage medium and a program product.

The invention discloses a water-grass-livestock balancing system comprising a water-grass balancing sub-system and a grass-livestock sub-system. The water-grass balancing sub-system determines a plantation structure and area for irrigation of a fodder grass land each year according to effective precipitation and maximum irrigation water, so grass is determined by water; and the grass-livestock balancing sub-system determines livestock breeding numbers each year according to grass output of the native pasture and artificial fodder grass land, so livestock numbers are determined by grass. The water-grass-livestock balancing system is divided into a water-grass and grass-livestock balancing sub-systems, so a mode of grass defined by water, and livestock defined by grass is formed; complicated work is simplified; and balance calculation is conducted to the two sub-systems individually.

The invention provides a phenological characteristic-based crop planting area determination method and system and a storage medium, and belongs to the technical field of computers, and the method comprises the steps: collecting remote sensing image data of a to-be-detected crop planting area according to a set time; determining vegetation index statistical characteristics and vegetation phenological characteristics of the to-be-detected crop planting area according to the remote sensing image data; determining a crop planting area feature vector of the to-be-detected crop planting area according to vegetation index statistical features and vegetation phenological features; inputting the crop planting region feature vector into a pre-trained random forest-based crop planting region extraction model, and performing remote sensing extraction to determine a crop planting region distribution diagram of the to-be-detected crop planting region; and analyzing the crop planting area distribution map to determine planting area data of the to-be-detected crop planting area. The method has the technical effects of low cost, high efficiency and capability of finely depicting the spatial distribution of the planting area.

The invention provides an upland rice paddy field irrigation planting high-yield cultivation method which mainly includes the steps of seedling strengthening culture, paddy field transplanting, paddyfield transplanting fertilization, water management, upland rice harvesting, drying and the like. An upland rice water cultivation mode is adopted, the original dry cultivation mode of upland rice isbroken through, the degree of water stress to the upland rice can be relieved, weed covering degree is reduced, the total output of the upland rice is increased by 267.44% as compared with that of a common dry cultivation mode, the number of panicles per hole, the number of grains per panicle and ripening rate are very significant in difference in different cultivation modes, and the number of panicles per hole, the number of grains per panicle and the ripening rate of paddy field irrigation planting are larger than those of the common dry cultivation mode. In addition, in the paddy field irrigation planting process of the upland rice, and water can be saved by paddy field dry cultivation seedling strengthening culture and paddy-upland alternating optimal water management technology of field management. By the method, the planting area of the upland rice can be effectively enlarged, and germplasm resources of the upland rice are protected and used.

The invention relates to a breeding method and cultivation technology of a new species of soybeans. The method is that the excellent species of soybeans is carried by spacecraft from Earth into space and then returned to Earth. Due to the space environment of micro-motion, high-vacuum and strong radiation, the soybeans carried by the spacecraft into space are mutated. Then the soybeans with good comprehensive traits are selected for nurturing until the new species with stable traits (i.e. the new species of space soybeans) are selected. The beneficial effects of this invention are: the expansion of the cultivation area of new species of soybeans can ease the tension in the contradiction between supply and demand of soybean and reduce the quantity of imported soybean and increase soybean production; meanwhile, the insecurity of the imported transgenic soybeans is reduced. The product index of the species can reach 667 square meters with 350-500 kg of output and increase production by 200 kg per Mu.

The invention relates to the technical field of planters, and discloses a rotary tillage oblique movement type six-row codonopsis pilosula film mulching and fertilization planter. The planter comprises a machine rack; a fertilization box is fixedly connected with the top of the machine rack; side discs are movably connected with the two ends of the left side of the machine rack; a roller assemblyis movably connected with a left side chassis of the machine rack; and a film mulching frame is fixedly connected with the top end of the left side of the machine rack. A mulching film is movably connected with the end, away from the machine rack, of the film mulching frame, and pressure springs are fixedly connected with the top ends of connecting rods of the roller assembly. The problems that existing domestic rhizome crop production machines are mainly used for vegetables and grains, agricultural mechanization is insufficient in traditional Chinese medicine production, manual transplantingis mainly used for planting rhizome traditional Chinese medicine codonopsis pilosula, time and labor are wasted, the planting area is small, the scale cannot be formed, the market requirement cannot be met, and the production cost is high; and an existing mechanical production technology is not mature, low in production efficiency and poor in reliability, and becomes a main bottleneck of industrial growth are solved.

The invention discloses a rice-crayfish-rana nigromaculata comprehensive planting and breeding method which comprises the following steps of selecting a proper rice field, building a heightened and widened ridge around the rice field, and installing escape-proof facilities around the ridge; from January to February, selecting submerged plants as aquatic plants to be transplanted 15-20 days before crayfish fries are put; stocking the crayfish fries in February, and catching the crayfishes in turns to come into the market in April to June when the bred crayfishes reach the commercial specification; after the crayfishes are caught, starting to plant rice from late June to early July, wherein the rice variety is selected from varieties which do not need land airing; stocking rana nigromaculata froglets which are artificially domesticated and can eat commercial artificial compound feed in the rice field 7-10 days after rice seedlings are transplanted in the rice field, and from October to November, using ground cages for catching the rana nigromaculata which is bred to the commercial specification to come into the market in turns. According to the comprehensive planting and breeding method, ditches do not need to be dug, the rice field planting area is not reduced, the advantages of continuous cropping of the rice and the crayfishes and symbiosis of the rice, the rana nigromaculata and the crayfishes are played, the time and space of the rice field are fully utilized, and the rice field utilization rate and economic benefits are improved.

The invention discloses an application of a rice combined type drilling sowing belt in rice germplasm resource sowing. The application comprises the following steps that after soil preparation, the rice combined type drilling sowing belt is directly pressed into a prepared rice field by using a sowing machine, and then cultivation management is carried out in a rice breeding process; the rice combined type drilling sowing belt is formed by weaving through a seed weaving machine and is composed of a sowing belt A and a sowing belt B; the sowing belt A comprises a paper belt A and rice seeds wrapped inside the paper belt A; the sowing belt B comprises a paper belt B and a particle mixture wrapped inside the paper belt B; and the sowing belt A and the sowing belt B are combined in a homodromous rotating and winding mode. The combined type drilling sowing belt is specially used for the rice seeds and is applied to rice germplasm resource sowing, so that the problem that the rice materialsare various, the planting area is small, the sowing efficiency is low, and the worker cost is high in the field of rice breeding is solved.

The invention discloses a garden engineering construction virtual information planning and intelligent arrangement system, and belongs to the technical field of garden engineering construction. The system comprises: a PLC control unit, wherein the input end of the PLC control unit is connected with the input end of a nursery stock database. According to the method, according to geographical location information and environment information of environment monitoring points of different regions, and in combination with growth environment information and planted region information of nursery stocks, the nursery stocks adapted to be planted in different environments and different seasons are determined, and nursery stock labels are marked on the corresponding planted regions; according to divided areas of different regions and planted areas of the nursery stocks, intelligent arrangement is performed on the nursery stocks, that is, related personnel design various arrangement matrices, intelligent arrangement is performed according to the geographic information, the environment information, soil information, and information of different types of the nursery stocks; then a garden engineering construction scheme is simulated through virtual display. Thus, a planning strategy is effectively adjusted according to planning information of the regions, the design period is effectively shortened, and the construction cost of garden engineering is reduced.

The invention relates to an automatic farm chemical dispensing device for preventing farm chemical damage. The device comprises an environment information acquisition module, a data transmission module, a controller, a farm chemical scanning module, a personal module and a farm chemical dispensing assembly, wherein the environment information acquisition module is used for acquiring environment information corresponding to the automatic farm chemical dispensing device for preventing farm chemicaldamage, and the environment information at least comprises geographic position information and weather data corresponding to the geographic position information; the farm chemical scanning module is used for scanning farm chemical information, and the farm chemical information at least comprises farm chemical types and farm chemical contents; the personal module is used for recording personal information, and the personal information at least comprises crop types, planting areas, planting time and soil information; the data transmission module is used for sending the environment information, the farm chemical information and the personal information to a server and receiving feedback information from a server; the controller is connected with the data transmission module and controls a farm chemical dispensing assembly to dispense farm chemicals according to the feedback information.

The present invention discloses a solid media pollen, a preparation method and the application thereof. Tobacco pollen parent anther is collected and aired to loose pollen; the pollen is sieved by a 50-mesh sieve; starch or flour is mixed with the collected pure tobacco pollen evenly according to the volume ratio of 1:2-4; and the required solid media pollen is obtained. The solid media pollen is dipped by a cotton swab or a brush pen and is smeared on a female parent tobacco flower stigma for artificial pollination. The use of the solid media pollen improves the effective utilization rate of the tobacco pollen, reduces the usage amount of the pure pollen, saves the manpower and material resources used for collecting the pollen and reduces the planting area of tobacco pollen parent and the hybrid seed production cost. The popularization and the application of the technology have good economic benefit and social benefit.

The invention discloses a method for extracting a winter wheat planting area based on spectrum reconstruction technology. The method comprises the following steps: step 1, acquiring a multi-scene high-quality remote sensing image of the whole winter wheat growth period in a research area and preprocessing a multi-scene high-quality remote sensing image; step 2, calculating a normalized vegetationindex of each image, and obtaining NDVI time sequence curve data of the remote sensing images in the research area through band synthesis, SG filtering and other processing; step 3, selecting a part of winter wheat sample points and obtaining NDVI time sequence curve data of the winter wheat sample points as a winter wheat training data set; step 4, performing singular vector decomposition on thewinter wheat training data set to obtain a plurality of front singular components of the winter wheat NDVI time sequence curve; step 5, reconstructing the NDVI time sequence curve of the whole image pixel by pixel by utilizing the obtained singular components; and step 6, comparing the similarity between the reconstructed NDVI time series data of the whole image and the original NDVI time series data. The phenological law of winter wheat growth is used for extracting the planting area, the principle is simple, operation is convenient, and high universality is achieved.

The invention discloses a double-no-tillage double-direct-seeding annual, simple and efficient cultivation method suitable for oil rice in hilly areas. The method comprises the following steps: 1), determining that the water content of field soil of a rice field is 85% of the saturated water content before rape sowing; 2) interplanting of rape and mechanically harvesting of rice: A, selecting an oil-vegetable dual-purpose variety; B, combining a seeding mode with unmanned aerial vehicle no-tillage strip direct seeding; and C, returning rice straws to the field, and reserving 40-50 cm stubbles; and 3) no-tillage ditching, water management and hole application of base fertilizer: A, fixing a field structure according to a figure 1; and B, applying base fertilizer in holes; 4) harvesting of flowering Chinese cabbage and the rapeseed: A, harvesting the flowering Chinese cabbage; and B, mechanically harvesting the rape; 5) irrigation and field steeping, no-tillage direct seeding of rice and management: A, returning rape straws to the field; B, performing field irrigation and steeping; C, selecting high-quality varieties of middle and late rice; D, combining a seeding mode with strip direct seeding of the unmanned aerial vehicle, and spraying closed herbal medicine; and E, fertilization management. The method is simple and easy to implement, the labor cost is reduced, mechanical operation is brought into full play, the planting benefit is improved, and the winter fallow field planting area is increased.