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 relates to an effective sampling method for establishing a sampling frame and designing auxiliary variables to realize crop area measurement under the support of historical remote sensing product data, wherein CACVM (crop acreage coefficient of variance in multi-years) and Mean respectively represent the change rate and average size of the crop cultivated area for multiple years in a sampling unit; and the two indexes are respectively used as the layered marker of the first stage and second stage of a two-stage layered sampling method. The Daxing, Fangshan, Shunyi and Tongzhou counties which have the concentrated cultivated areas of winter wheat in Beijing are used as research regions to be tested, thereby evaluating the effectiveness of the method provided by the invention.

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 discloses a medium pollen, a preparation method and the application thereof. The preparation method is as follows: tobacco male parent anther is collected and aired to cause the anther to loose power, a 50 mesh sieve is used for sieving out pollen and pollen sac, the pollen sac is collected, dried at 40-50 DEG C for 20-24 hours, and ground into powder; the pollen sac powder and the pure tobacco pollen are mixed evenly according to 1:1-4 of volume ratio, and the required medium pollen is obtained. The medium pollen is dipped by a cotton swab or a brush pen and applied to the female parent tobacco flower column head for artificial pollination. The use of the medium pollen improves effective utilization ratio of the tobacco pollen, decreases application amount of the pure pollen, saves manpower and material resources for collecting pollen, decreases planting area of the tobacco male parents, and lowers production cost of seed production by hybridization. The popularization and application of the preparation method thereof have good economic benefit and social benefit.

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 relates to a crop drawing method using Sentinel-2 time sequence image data. The method comprises the following steps: firstly, carrying out wave band selection and cloud mask pretreatment on an image in a research area, then generating an image data set synthesized according to corn growth stages according to a corn growth phenology law, calculating a normalized vegetation index and a normalized moisture index, adding the normalized vegetation index and the normalized moisture index into wave bands of the image, and then creating sample points of the research area; and forming a sample pair with the image data set at the corresponding position, training the classification model by using a random forest algorithm, finally obtaining a distribution diagram of the corn in the research area by using the trained classification model, and performing pixel-by-pixel summary statistics to obtain the corn planting area in the research area. According to the method, a GoogleEarthEngine cloud platform is utilized to realize storage and calculation of a large amount of data, a method of performing median synthesis according to growth stages is designed to reduce the influence caused by cloud pollution to the greatest extent, and finally, fine mapping and area monitoring of corn are quickly realized.

The invention provides a mowing and alfalfa harvesting mechanical device for orchards, comprising a main beam, a transmission mechanism, a cutting device, a profiling mechanism and a shock-proof mechanism. So far, due to the fact that walk type or manual or self-propelled mowers are adopted generally in orchards in central and western china to complete the work of mowing and there is no agricultural orchard mowing machine integrated with alfalfa harvesting, labor intensity is high, risk to workers in working is increased, farming season is delayed, and growth of fruit trees and quality of fruits are both decreased. With changing of agricultural production structure, development of fruit industry becomes important more and more, and planting area of fruit trees and fruit yield are increasedgradually; but with increase of orchard planting area, contradiction between mowing strength and increase of planting area sharpens, and demand for orchard mowers grows strong; however, most existingmowers are used for mowing lawn or mowing in orchards only, special machines for orchards are short, development of domestic mowers and development of abroad mowers are not at the same level, and, imported mowers adopted in most areas of China have high prices, are difficult to maintain and poor in after-sale service, and may delay mechanization of planting in orchards.

The invention relates to the technical field of agricultural planting and discloses a seedling raising device for planting. The seedling raising device comprises a greenhouse and a water basin arranged inside the greenhouse, wherein a latticed locating framework is fixedly mounted on the upper surface of the water basin, a planting pontoon is placed on the locating framework, and the bottom of theplanting pontoon is arc-shaped. According to the seedling raising device for planting, a young seedling maintenance area covered by one passageway is increased substantially, arranging of passagewayscan be effectively reduced, area occupied by the passageways is reduced, the cost of passageway arranging is reduced, and the area of planting is increased; and secondly, the planting pontoon floatson the water independent of buoyancy, on one hand, the depth of immersion of the planting pontoon is not affected by growth of young seedlings and weight of a matrix, the immersion and further absorption capacity of the planting pontoon are more easily controlled, on the other hand, when the moisture content of the matrix is relatively high, the bottom of the planting pontoon can be departed froma water surface through reducing pool water depth to accelerate water loss of the matrix, and soil humidity is conveniently maintained in a reasonable range.

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 provides a multi-plant corn and multi-plant soybean intercropping method on ridge edges of two ridges. According to the method, two 90-centimeter wide ridges are taken as a planting unit, space between the two ridges is 40-60 centimeters, soybean is planted symmetrically on ridge edges inside the two ridges with 1-2 plants in each hole, and space between holes is 15-18 centimeters. According to the method, a traditional 60-centimeter wide ridge is changed to a 90-centimeter wide ridge, the sciophilous characteristic of soybean and the high-stem characteristic of corn are combined, and therefore intercropping of the corn and the soybean enables the soybean to be in a good growing environment as the high stem of the corn overshadows the soybean, and light receiving points and light receiving surfaces of the multiple plants of corn are enlarged, the border row advantage is reflected by arrangement of multiple plants of corn and multiple plants of soybean in each ridge, the multiple plants of corn are enabled to receive light and air well, and therefore growing and development of the multiple plants of corn are benefited and yield is high, the planting area is enlarged, output value of land is doubled, current yield of one year is equal to previous yield of two years, and contradiction of large population and little land is relieved greatly.

The invention discloses a high-cold area winter wheat life limit division and north shift and freezing injury check planting method. According the invention, the phenomenon that the winter wheat seedling emerges from the surface of the earth in corresponding snow cover in high-cold area to realize overwintering green returning is regarded as the winter wheat life limit, and the winter wheat life limit is divided and shifted north, wherein the step of winter wheat division and north shift comprises the division of a planting area and the division of the planting surface down-shift life support interval. The planting area is divided into a safe area, a relatively safe area and a dangerous area; the safe area includes the forest seas and snow rivers under the effect of forest climate; the relatively safe area includes the plains under relatively thick snow cover, depressions and shady slopes of snowfield; and the dangerous area includes the downlands under relatively thin snow cover, slopes exposed to sun and suburbs influenced by the urban greenhouse effect. The planting surface down-shift life support interval is divided into a mechanical tillage interval and a non-mechanical tillage interval. The planting method comprises the following steps of: performing a freezing injury check experiment of the north-shift winter wheat overwintering; determining the planting mode of the winter wheat of the variety by use of corresponding measures; and finally maximizing the north-shift planting area of the high-cold area winter wheat.

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 high-resolution image and machine learning-based high-altitude region crop classification and identification method, which comprises the following steps of: screening out an optimal feature combination through a recursive feature elimination strategy based on a random forest by using a domestic GF6-PMS satellite image and combining features such as spectrum, texture, vegetation index and topographic factor; and calculating a Gini index to obtain an importance score of each input feature, and further utilizing a two-layer stack-driven integrated classification model (including three single classifier models of Random Forest, XGBoost and AdaBoost) to classify and identify the crops in the high-altitude region. The Stacking model constructed on the basis of the optimal feature combination (Green, Red, NIR, TVI, GNDVI, BlueMean, GreenMean, RedMean, NIRMean, DEM) can improve the classification and recognition precision of crops in high-altitude areas to a large extent, especially the classification and recognition precision of bulk crops with large planting areas, and provides a scientific reference basis for crop remote sensing recognition of domestic high-resolution satellite images in high-altitude areas.

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 discloses a water-consuming crop planting layout optimization method and device. The method comprises the steps of: carrying out grid division on a target region, acquiring potential per unit yield and suitable planting area data of water-consuming crops on each grid unit, actual evapotranspiration of the water-consuming crops under irrigation water demand and water stress, and actual planting proportion, planting area and actual per unit yield under irrigation and rain-fed planting conditions; obtaining the cultivated area, the irrigation area and the sustainable irrigation water amount of each grid unit in a target area; obtaining the actually available total water resource amount of the water-consuming crops based on the rainfall capacity and the sustainable irrigation water amount of the target area, and obtaining the potential per unit yield level of the water-consuming crops under the available total water resource amount based on the available total water resource amount; and with the highest potential total yield of the water-consuming crops in the target area as an optimization target, performing layout optimization based on a predetermined constraint condition and the data to obtain an optimized planting area of the water-consuming crops so as to realize sustainable development of a resource environment.

The invention discloses a panax notoginsengintroduction and cultivation method suitable for Guizhou. The method comprises the following steps of (1), land selection, deep ploughing and land preparation, specifically, panax notoginseng is not planted in the first two years of the selected land; (2), firstly applying a base fertilizer; (3), sowing or transplanting; (4), building a sunshade net, and adjusting the light transmittance to 12%-30%; and (5), performing field management. By means of the panax notoginseng introduction and cultivation method, the panax notoginseng can be successfully introduced and cultivated in Guizhou, stability and high yield are achieved, and it is guaranteed that the quality of medicinal materials conforms to pharmacopoeia regulations; the problems that the suitable planting area of a genuine production area is reduced year by year and the panax notoginseng cannot be massively produced due to long crop rotation years of the panax notoginseng are solved; and the introduction and cultivation method suitable for the panax notoginseng in a Guizhou area is explored, agricultural development in the Guizhou area is promoted, and the supply amount of the panax notoginseng in the market is further guaranteed.

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.