763 results about "Rice farming" patented technology

The invention relates to the technical field of crop yield analysis, in particular to a crop yield prediction method based on a time sequence remote sensing image, and the method comprises the steps: obtaining an optical remote sensing image and a synthetic aperture radar image in a crop growth period, and constructing a time sequence image through complementary information fusion and under-cloud information recovery; the problems of cloud interference and data missing are solved, a multi-scale time regulation and control convolution module is used for processing a time sequence image, multi-scale time sequence features are extracted, feature fusion is carried out in combination with attention difference jump connection, and a rice distribution map is obtained; determining a rice planting area based on the rice distribution diagram, selecting an optimal assimilation time period in the rice planting area, and assimilating the leaf area index subjected to remote sensing inversion and a crop growth model simulation result to generate a simulated yield after assimilation; based on the multi-scale time sequence characteristics, a parameter dynamic response matrix related to crop growth model parameters is established, and residual error correction is performed on assimilated simulation yield, so that the rice yield prediction precision is improved.

The invention provides an agriculture and forestry wet compound system and a comprehensive synergistic method for a rice farming aquatic product area. The agriculture and forestry wet compound system comprises an ecological rice field area, an ecological pond area, a forest and wet compound area, an aquatic product culture area and an ecological hydroponic area. The ecological paddy field area is communicated with the ecological pond area through a pipeline, the ecological pond area is communicated with the forest wetting composite area through a pipeline, the forest wetting composite area is communicated with the aquaculture area through a pipeline, and the aquaculture area is communicated with the ecological hydroponic area through a pipeline. Incoming water containing bottom mud, residual feed and biological debris in the ecological hydroponic area is communicated with the ecological rice field area through a pipeline. Based on different nutrient requirements of each unit, agriculture and forestry wet compounding is taken as a core, and the opposite relationship between water, fertilizer and bait requirements of a rice field and a culture pond and tail water pollution treatment is converted into a coupled adaptive multi-element cooperative relationship.

The invention provides a rice planting area identification method and device based on multi-temporal remote sensing data, equipment and a storage medium. The method comprises the following steps: acquiring the multi-temporal remote sensing data according to a rice phenological period; determining a spectral index sequence of the multi-temporal remote sensing data to construct a spectral index time sequence curve, and generating planting characteristic data in the target area according to a spectral change curve; determining a spectrum time sequence template matched with the rice growth rule according to the planting characteristic data, performing matching analysis on the planting mode of each land block, and marking a land block set of rice planting mode characteristics; performing cross comparison on the plot set and the rice planting reference sample to generate a rice planting mode sample set, and constructing a rice planting area identification model based on the rice planting mode sample set; and analyzing the remote sensing data of the land parcels to be identified in the research area according to the rice planting area identification model, and determining a rice planting area identification result. According to the scheme, the accuracy of rice identification can be effectively improved.

The invention provides a seeding machine for rice planting, which is uniform in seeding. The uniform-seeding seeder for rice planting comprises a mounting box, a temporary storage hopper is arranged at the top of the mounting box, a quantitative picking mechanism is arranged in the mounting box and is matched with the temporary storage hopper, a transferring mechanism is arranged on one side of the mounting box, a plurality of seeding rods are arranged on the transferring mechanism, and the seeding rods are matched with the temporary storage hopper. A supporting mechanism is arranged on the mounting box, a lifting adjusting mechanism is arranged on the supporting mechanism, the lifting adjusting mechanism is connected with the plurality of seeding rods, and a spacing adjusting mechanism is arranged on the lifting adjusting mechanism; and the quantitative picking mechanism is used for quantitatively picking the rice seeds in the temporary storage hopper and conveying the picked rice seeds into the transferring mechanism. The uniform-seeding seeder for rice planting provided by the invention has the advantages that the rice seeding depth can be adjusted, and the rice seeding spacing can be adjusted.

The invention provides a carbon emission management monitoring method and device for rice planting in a cold region, and relates to the technical field of carbon emission management monitoring. Vertical three-layer parameters of a soil profile, namely the surface methane concentration, the middle oxidation-reduction potential and the deep organic acid concentration, are collected; the method comprises the following steps: mapping a middle-layer potential into an inhibition coefficient according to a microbial electrochemical principle, further calculating potential uplink electron flux and actual downlink electron sedimentation intensity, identifying an electron transport chain breakage risk through a residual error of the potential uplink electron flux and the actual downlink electron sedimentation intensity, and carrying out nonlinear fusion on the electron transport residual error and environment weights of all layers by adopting a p-norm model. Through the risk amplification coefficient, the superlinear conduction of the local risk to the whole system is realized, the dominant risk layer is accurately positioned based on the comprehensive weight, the differential field management strategy is automatically generated, and finally the closed-loop intelligent management normal form is constructed, and the accurate control of the carbon emission based on the mechanism model is realized.

The invention relates to the technical field of rice monitoring, and particularly discloses a rice planting area monitoring management system and method based on an unmanned aerial vehicle, and the system comprises an area division module which is used for dividing a rice planting area into a plurality of monitoring areas with the same size; the unmanned aerial vehicle shooting module comprises a shooting unit and an identification unit, and the shooting unit is used for shooting rice image information in different areas; the rice pest influence coefficients in different monitoring areas are calculated in combination with diversified data, and are compared with a preset pest influence coefficient threshold interval, so that pest risks in different monitoring areas can be accurately analyzed; and according to the grade of the insect pest risk, whether the insect pests need to be removed by using pesticides is judged, so that the situation that crops, soil, water sources and the like are polluted due to the fact that the insect pests are removed by blindly using the pesticides when the insect pests are in the initial stage is avoided.

The invention discloses a serratia marcescens strain and an application thereof. Belongs to the technical field of agricultural microorganism and heavy metal pollution control. The serratia marcescens separated from the rhizosphere of the rice is inoculated to the rhizosphere of the rice, is used for in-situ remediation of polluted soil rice planting, can be effectively colonized at the root of the rice, and has high safety. Manganese and iron ions in the soil can be adsorbed and chelated, and the formation of an iron-manganese adhesive film on the surface of a rice root is enhanced, so that the Cd element is prevented and controlled from entering plant roots and overground parts; the absorption of manganese and iron in the polluted soil can be increased, the growth of the rice is promoted, and the yield of the rice is increased. And the standard-reaching safe production of rice Cd in the moderately and mildly polluted soil is realized, and the method has a very good application prospect.

The utility model discloses cultivation equipment for rice planting, and relates to the technical field of rice cultivation, the cultivation equipment comprises a cultivation box and a cultivation groove, the cultivation groove is installed in the cultivation box, a supporting plate is further installed in the cultivation box, the cultivation groove is connected to the upper end of the supporting plate, two sides of the supporting plate are connected with sliding blocks, the inner side surface of the cultivation box is provided with a sliding groove, and the sliding groove is connected with the supporting plate. A longitudinal push rod is connected to the inner bottom face of the cultivation box, the output end of the longitudinal push rod is connected with the supporting plate, a water tank is installed at the bottom end of the cultivation box, and a backflow channel is connected to the inner bottom face of the cultivation box. Rice seedlings are planted in the cultivation grooves, the flow guide grooves are formed in the surface of the supporting plate, the lower ends of the cultivation grooves are connected with the flow guide grooves, the rice seedlings are irrigated, residual irrigation water can infiltrate downwards from the filter holes in the surface of the supporting plate and flows back to the water tank through the backflow channel, operation is convenient and fast, and use is environmentally friendly.

The invention provides a seedling planting device for rice planting, and relates to the field of rice transplanting devices. The seedling planting device for rice planting comprises a seedling storage assembly, a seedling transplanting assembly, a power assembly and a linkage assembly, and a vibration assembly is mounted on one side of the bottom surface of the seedling storage assembly; the seedling storage assembly comprises a seedling box, one end of the seedling box is open, the other end of the seedling box is of an arc-shaped contraction structure, and a vertical groove is formed in the arc-shaped contraction structure of the seedling box and communicates the inside and the outside of the seedling box. According to the seedling planting device for rice planting, by arranging the seedling transplanting assembly and the linkage assembly, the roots of seedlings cannot be damaged when the seedlings are moved out of the bottoms of the vertical grooves, so that the high survival rate of seedling transplanting can be achieved, the seedlings can be immediately separated from the pointed cones when being brought out, and the seedlings cannot be brought out of soil again; when the depth is in place, the pointed cones are in a longitudinal state, so that the seedlings are prevented from lodging when being transplanted.

The invention relates to the technical field of high-temperature heat damage influence assessment, in particular to a remote sensing and live data fusion coupling rice high-temperature heat damage influence assessment method, which comprises the following steps: acquiring remote sensing data of a rice planting area, and calculating a remote sensing factor for rice high-temperature heat damage influence assessment based on the remote sensing data; collecting fused live CLDAS air temperature data of a rice planting area, and calculating a temperature factor of rice high-temperature heat damage influence evaluation based on the air temperature data; and calculating the high-temperature heat damage influence grade of the rice planting area based on the remote sensing factor and the temperature factor, and completing rice high-temperature heat damage influence evaluation. According to the method, the high-temperature heat damage influence grade of the rice can be accurately evaluated by combining remote sensing data and fusing actual CLDAS air temperature data.

The utility model discloses an efficient and uniform sowing device for rice seeds, which relates to the technical field of rice planting and comprises an unmanned aerial vehicle, two sides of the bottom end of the unmanned aerial vehicle are connected with support frames, the middle of the unmanned aerial vehicle is provided with a sowing barrel, the middle of the bottom end of the sowing barrel is connected with a sowing pipe, and the middle of the top end of the unmanned aerial vehicle is connected with a mounting ring. The sowing barrel is located in the mounting ring, the outer side of the mounting ring is in threaded connection with a first screw rod, a first screw hole is formed in the middle of the outer side of the sowing barrel, and the sowing barrel is in threaded connection with the first screw hole; the device has the beneficial effects that the unmanned aerial vehicle and the sowing barrel are arranged, the unmanned aerial vehicle is used for automatic sowing, the problem that sowing is inconvenient in a paddy field is solved, the sowing barrel is fixed in the mounting ring through matching of the mounting ring, the first screw rod and the first screw hole, and on the contrary, the sowing barrel is fixed in the mounting ring by rotating the first screw rod; the sowing barrel and the sowing mechanism can be conveniently and rapidly disassembled, and workers can conveniently separate the sowing mechanism from the unmanned aerial vehicle for maintenance.

The invention discloses a rice disease and insect pest monitoring method and system, and relates to the technical field of disease and insect pest monitoring, and the method comprises the steps: firstly testing the resistance of different rice varieties to different disease and insect pests, then selecting an optimal rice planting variety for a planting field, and according to the disease and insect pest conditions of the planting field, determining the disease and insect pest conditions of the planting field; according to the method, a variety with relatively high resistance is selected for planting, damage of diseases and insect pests during later growth is reduced, and meanwhile, the cost of monitoring the diseases and insect pests is reduced, so that the cost of rice planting is reduced, a basis is provided for subsequent high-yield and high-quality planting of rice, and during rice planting, an image of each single rice plant is monitored, and a three-dimensional model is constructed; the defense effect of each part in each single rice plant is obtained, then abnormal parts and abnormal pest and disease damage types in the rice are confirmed, reference is provided for subsequent pest and disease damage treatment, the treatment position is accurately positioned, and the pest and disease damage monitoring and treatment effects are improved.

The invention discloses a rice whole growth period growth dynamic monitoring system based on multi-source sensing fusion, and relates to the field of agricultural intellectualization, and the system comprises an acquisition module which is used for taking a rice root development core area as a target, adaptively arranging a multi-dimensional sensing array and dynamically adjusting the operation frequency of the array, continuously collecting root system microenvironment and morphological characteristic original data; the preprocessing module is used for receiving the original data acquired by the acquisition module, performing space-time alignment and noise filtering on the root system microenvironment and morphological feature sensing data, and synchronously extracting core data dimensions for driving development analysis through a feature enhancement algorithm; by comprehensively evaluating the generated growth potential and yield potential report, the rice growth state is comprehensively reflected, a planter is assisted to intervene abnormal conditions in advance, the growth stress loss is reduced, and a scientific basis is provided for accurate regulation and control, so that the fine management level and yield potential of rice planting are improved.

The invention is suitable for the technical field of rice seed cultivation, and provides a rice planting box which comprises a water tank installed on a base and a box body fixedly installed on the water tank and used for rice seedling raising. The partition plates are fixedly installed in the box body and divide the interior of the box body into a plurality of seedling raising cavities, and seedling raising plates are arranged in the seedling raising cavities; the drainage pipe is fixedly mounted at the top of the seedling raising cavity and used for irrigating rice; the U-shaped water pipe is arranged on one side of the box body and is connected with the drainage pipe; the electromagnetic valve is sleeved on the drain pipe; the first water pump is installed on the base, and the water drainage end of the first water pump is connected with the U-shaped water pipe; and the mixing mechanism is arranged on the water tank and is used for mixing nutritional agents. According to the rice planting box provided by the scheme, by integrating a precise irrigation technology, uniform distribution of water flow and precise control of irrigation amount are realized, and a powerful guarantee is provided for healthy growth of rice.

The invention discloses a preparation method of a controlled-release fertilizer for mechanical transplanting rice seedling raising subsoil and application of the controlled-release fertilizer to replace field fertilization, and belongs to the technical field of rice cultivation. A coating of the controlled-release fertilizer is prepared from the following components in parts by weight: 20 to 60 parts of low-density polyethylene resin, 10 to 20 parts of ethylene-vinyl acetate copolymer, 5 to 30 parts of synthetic resin biodegradation inducer, 3 to 15 parts of starch, 10 to 70 parts of talcum powder and 0.2 to 2 parts of nonionic surfactant. The controlled-release fertilizer comprises urea and a compound fertilizer which are respectively coated by the coating film. According to the controlled-release fertilizer for the machine-transplanted rice seedling raising subsoil, a coating material is optimized, the release inhibition period of the controlled-release fertilizer is 20-30 days, normal growth of rice seedlings is ensured, and the rice growth requirements are accurately met. When the method is used for rice planting, a seedling raising subsoil fertilizer carrying method is adopted, integration of rice transplanting and fertilization is achieved, and on the basis of ensuring high and stable yield of rice, the fertilizer application cost and the risk of nitrogen and phosphorus pollution emission in the rice field are reduced.

The invention relates to the technical field of stress-resistant cultivation of rice, and particularly provides a method for increasing the planting yield of rice in a coastal mild salinized land by applying biochar. According to the method, rice straw biochar is applied to the coastal slightly-salted land, the rice straw biochar is uniformly applied at a time during soil preparation before rice transplanting in the first year, it is guaranteed that the biochar is fully and uniformly mixed with a soil layer of 0-20 cm, and the biochar is not applied any more in the second year. According to the method, the rice straw biochar is uniformly applied at one time during soil preparation before rice transplanting, the effect of continuously improving the coastal slightly-salted land for two years is achieved, the addition amount of the biochar can be effectively saved, the improvement cost is reduced, and the rice planting yield is increased.

The invention provides a rice crab planting and breeding method which comprises the steps of rice field transformation, rice planting and juvenile crab throwing and feeding, and the rice field transformation comprises the steps that isolation meshes are installed on the periphery of a rice field and used for preventing blue crabs from escaping from the rice field; digging and building a juvenile crab collecting area on one side of the rice field for collecting juvenile crabs; a rice planting area and a juvenile crab breeding area are alternately dug and built in the rice field, the rice planting area is 0.2-0.5 m higher than the juvenile crab breeding area, the rice planting area is inclined to a seedling collecting area by 5-10 degrees, and a seedling collecting pipe is arranged between the juvenile crab breeding area and the seedling collecting area and used for collecting juvenile crabs to the seedling collecting area; a water return channel connecting the upstream of the rice planting area and the seedling collecting area is dug and built, the depth of the water return channel is 50-100 cm, the water in the rice field circularly flows, and bait is properly fed in time. According to the rice and crab planting and breeding method provided by the invention, saline-alkaline tolerant rice and scylla juvenile cultivation are combined, the water body space in the saline-alkaline tolerant rice field is fully utilized, and the method is a novel green, ecological and efficient income-increasing planting and breeding combined production mode.

The utility model relates to the technical field of rice cultivation, in particular to a rice planting and cultivating observation device. Comprising a cultivation box, two sliding rods are fixedly connected to the interior of the cultivation box, the sliding rods are symmetrically arranged about the center line of the cultivation box, three sets of moving blocks are slidably connected to the exteriors of the sliding rods, a placing plate is fixedly connected between every two corresponding moving blocks, and a cultivation plate is arranged on the upper sides of the placing plates; the multiple moving blocks are arranged on the sliding rods in a sleeving mode, the multiple sets of containing plates are arranged, the containing plates can be conveniently added according to the number of needed seedlings, the practicability of the device is improved, the moving plates are pressed to rotate, the moving plates drive the fixing rods to move, the fixing rods are separated from the interiors of the clamping grooves, and the springs are extruded; then the sliding moving block drives the placing plates to move to a proper position, vertical movement of the placing plates is achieved, the distance between the placing plates can be adjusted along with growth of the rice seedlings, growth of the rice seedlings is facilitated, and the seedling raising efficiency is improved.

The utility model relates to the technical field of rice planting, in particular to a germination accelerating device for rice planting, which comprises a germination accelerating cylinder body, the output end of a speed regulating motor penetrates through a support frame and is fixedly connected with a stirring assembly shaft, and a seed selection temperature control component is arranged inside and outside the germination accelerating cylinder body and the stirring assembly shaft; the seed selection temperature control assembly comprises a seed selection sleeve groove fixedly installed on the outer wall of the top end of the germination accelerating cylinder body, and a screen is detachably installed on the inner wall of the seed selection sleeve groove and the outer wall of the top end of the germination accelerating cylinder body. According to the seed germination accelerating device, water in the germination accelerating cylinder body can rotate and flow through stirring and impact of drainage, so that abortive grains, semi-abortive grains and smut grains in seeds can be fully suspended and move into the seed selection sleeve groove under the action of rotating centrifugal force, the abortive grains, the semi-abortive grains and the smut grains which float upwards in the seed selection sleeve groove can be fished up, and the seeds are prevented from being damaged. Some diseases are prevented from being transmitted to good seeds, so that the seed selection effect is achieved, and the germination rate of the seeds is guaranteed.

The utility model belongs to the technical field of rice planting, and particularly relates to a lodging-resistant device for rice planting, which comprises a support column, a winding piece, a locking piece and an inhaul cable, a winding roller of the winding piece is rotatably connected to the upper end of the support column through a bearing, and a driving rod is arranged at the position of a first check block arranged on the upper portion of the winding roller. A locking piece is arranged on a supporting column on the lower portion of the winding roller, a sliding sleeve is connected to a fixing sleeve of the locking piece in a sliding mode, and a stop lever fixedly connected to the upper end of the sliding sleeve abuts against a second stop block arranged on the lower portion of the winding roller. The supporting columns are used for fixing the winding rollers for winding the inhaul cables to the two ends of a row or a row of plants, the ends of the two inhaul cables are fixedly connected together, the inhaul cables are arranged on one sides of the rice plants in a lap joint mode, the rice plants are effectively blocked and supported, and the rice plants are prevented from lodging on the ground under the action of external factors such as wind and rain. The rice lodging-resistant device is simple in structure, can effectively prevent rice plants from lodging, and is convenient to use.

The invention discloses a rice cultivation method capable of effectively preventing low-temperature cold damage, and relates to the technical field of agricultural planting. The method aims at solving the problems that the low-temperature-resistant potential of seeds cannot be brought into full play, plough layer conditioning measures are not meticulous enough, and personalized schemes for different soil types and low-temperature environments cannot be achieved. Through technical measures of rice germplasm treatment, cultivation soil treatment, field management and the like, the cold resistance of the rice is effectively improved, the rice can still keep a good growth condition in low-temperature cold damage weather, meanwhile, the soil quality is improved, a foundation is laid for sustainable agricultural development, and the method is worthy of popularization and application. Through low-temperature climate data analysis, early warning system establishment and emergency response mechanism matching, the stability and risk resistance of agricultural production are improved, innovation and development of a rice planting technology are promoted, the rice quality is improved, the requirement of the market for high-quality rice is met, and higher economic benefits are brought to farmers.

The invention relates to the technical field of rice planting. The invention provides an application of combined use of green manure crops and ground phosphate rock in increasing rice yield and / or reducing phosphorus loss of a paddy field. The mass ratio of the fresh grass amount of the green manure crops to the ground phosphate rock is (2000-3000): (120-225). The invention further provides a method for increasing the yield of the double cropping rice by jointly utilizing the green manure crops and the ground phosphate rock, the yield of the double cropping rice can be obviously increased by adopting the scheme, and the phosphorus runoff loss of the rice field can be effectively reduced on the premise of ensuring the high yield of the double cropping rice.

The invention discloses an AI-based rice planting environment data informatization management system, and relates to the technical field of agricultural informatization. The method comprises the steps that an environment data acquisition module obtains multi-dimensional space-time marked environment parameters; the disturbance modeling module is used for analyzing environment change, identifying a disturbance structure and calculating a sudden change value; the growth stage parameter module is used for constructing a stage characteristic parameter set; the growth state modeling module is used for generating growth state data in combination with disturbance and a growth stage; the strategy generation module formulates a resource regulation and control strategy based on the growth state and the feedback information; the resource coupling analysis module is used for identifying coupling and interference relations among resources; the strategy constraint module is used for adjusting a resource strategy to generate a control strategy; and the control execution feedback module is used for executing the regulation and control instruction and feeding back growth data. Through high-precision space-time environment data fusion, deep coupling analysis of environment disturbance and growth states and resource regulation and control closed-loop optimization management, intelligent and precise monitoring and regulation and control of a rice planting environment are realized.

The invention discloses an unmanned aerial vehicle for rice planting and a supply platform of the unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles and supply platforms, the unmanned aerial vehicle for rice planting and the supply platform are included, the supply platform comprises a moving trolley, an operation platform, a supply box, a limiting assembly and a replacement assembly, and the limiting assembly is located in the operation platform; the limiting assembly comprises a shell, a bidirectional adjusting assembly and a limiting plate, wherein the bidirectional adjusting assembly and the limiting plate are located in the shell. The unmanned aerial vehicle body is clamped through the limiting assembly. The replacing assembly comprises a synchronous belt assembly, a supporting plate, a pesticide box limiting groove and a battery limiting groove, wherein the pesticide box limiting groove and the battery limiting groove are located in the supporting plate. The unmanned aerial vehicle body replaces a pesticide box and a battery body through the replacing assembly. And a medicine filling barrel, a charging assembly and a standby battery are arranged in the supply box. The medicine box and the battery body can be conveniently replaced through the replacement assembly, and the labor intensity is relieved; and meanwhile, the unmanned aerial vehicle can be parked and transferred along with the vehicle conveniently, and rapid replenishment and flexible arrangement are achieved.

The invention belongs to the technical field of microbial fermentation and biological agriculture, and discloses a soil remediation fungicide as well as a preparation method and application thereof. The preparation method comprises the following steps: activating bacillus megatherium Z101, inoculating the activated bacillus megatherium Z101 into fermentation liquor containing rice straw powder, carrying out fermentation culture, and carrying out vacuum spray drying on fermentation mixed liquor after fermentation is completed, so as to obtain soil remediation bacterium powder; or further mixing the soil remediation bacterium powder with auxiliary materials and water, and granulating to obtain the soil remediation bacterium granules. The application method comprises the following steps: in a rice planting stage, applying the soil remediation fungicide and an inorganic fertilizer together to remedy rice field soil and promote rice growth. The soil remediation fungicide prepared by fermentation culture of the bacillus megatherium Z101 has remarkable advantages in the aspects of rice yield increase, soil pH value increase and physicochemical property improvement, and a new application way is provided for the bacillus megatherium Z101.

The invention is applicable to the technical field of agricultural planting, and provides rice seed soaking equipment for rice planting, which comprises a base frame for bearing components; the seed soaking tank is arranged on the base frame and is used for containing liquid required by seed soaking; the net cylinder is used for placing rice seeds and is movably arranged in the seed soaking groove; the mounting frame is fixedly mounted on the base frame, a drying box is arranged in the mounting frame and used for drying the soaked rice seeds, and a turning and stirring mechanism used for turning and stirring the rice seeds is arranged in the drying box; and the air supply mechanism is arranged on the base frame and the drying box and is used for supplying hot air. According to the rice seed soaking equipment for rice planting, the problem that soaking treatment and drying treatment are disjointed in the current rice seed soaking process is solved.

The utility model discloses a cultivation device for rice planting, and relates to the field of rice cultivation, the cultivation device comprises a storage shell, the bottom surface of the storage shell is fixedly provided with a sowing port, the sowing port is communicated with the interior of the storage shell, the bottom end of the interior of the storage shell is rotatably provided with a material distribution roller, and the material distribution roller is provided with a material distribution hole. A plurality of evenly-distributed material distribution grooves are formed in the material distribution roller, a first middle shaft is rotationally clamped in the material distribution roller, and a plurality of second clamping plates are installed on the outer surface of the first middle shaft. Through the arrangement of the material distribution roller, rice seeds can be sown only by holding a handle to push the device on a seedbed; the sown seeds are distinct in layering sense, the rice seeds are uniformly distributed, the bud penetration rate of the seeds is increased, the survival rate of rice seedlings is increased, the waste of the rice seeds is reduced, the later transplanting survival rate of the rice seedlings is higher, manual sowing by farmers is not needed, a large number of rice seeds can be sown at a time, the workload is reduced, and the efficiency is improved.

The invention relates to a rice identification method based on a growth early-stage short time sequence SAR image, and the method comprises the steps: obtaining rice growth early-stage time sequence SAR data in a target region, and carrying out the preprocessing of the rice growth early-stage time sequence SAR data, so as to obtain standard early-stage SAR data; collecting target historical SAR data of rice growth in the target area, calculating a water body backscattering value and a vegetation backscattering value of the target area according to the target historical SAR data, and calculating a rice discrimination index of the target area based on the water body backscattering value, the vegetation backscattering value and the standard early SAR data; and segmenting the rice discrimination index by using a preset SSSI threshold to obtain an index segmentation result, extracting a rice planting range in the target area according to the index segmentation result, and identifying the rice earliest identification period of the target area through the rice planting range. Therefore, the problems that an existing rice early-stage extraction method depends on priori knowledge, and the regional popularization ability is poor are solved.

The invention discloses a three-dimensional rice field breeding system and method for crayfishes. The breeding system comprises a breeding box, a feeding assembly and an anti-escape assembly. A barrier net plate and a climbing frame are arranged in the breeding box; the feeding assembly is arranged above the breeding box and is used for uniformly throwing breeding baits into the breeding box; the anti-escape assembly is arranged at the top end of the breeding box and used for preventing the crayfish from climbing out of the breeding box to cause economic loss; the breeding system is reasonable in structural design, a win-win situation of rice and lobsters can be achieved by breeding the lobsters in the rice field, harmful insects in the rice field can be killed by means of the omnivorous characteristic of the lobsters, use of pesticides is reduced, and growth of the rice is more environmentally friendly; meanwhile, excrement of the crayfish can provide fertilizer for growth of the rice, the planting cost of the rice is reduced, the breeding cost of the crayfish is also reduced, and the method is suitable for large-scale application and popularization.

The utility model relates to the technical field of rice planting, in particular to a pesticide spraying device for rice planting. The pesticide spraying device comprises a main body frame, a fixing assembly is arranged on the inner wall of the main body frame, a protection assembly is arranged on the surface of the fixing assembly, the fixing assembly is used for fixing the protection assembly, the protection assembly is used for preventing pesticide sprayed out of the main body frame from being interfered by the wind direction, and the protection assembly comprises a protection frame arranged on the surface of the fixing assembly. By arranging the windproof frame, pesticide spraying can be effectively prevented from deviating from the preset spraying direction and range due to natural wind, it is ensured that all rice plants can receive enough pesticide, the pest control effect is improved, waste and environmental pollution caused by excessive spraying of pesticide are reduced, sprayed pesticide droplets are dispersed more evenly, and the pesticide spraying effect is improved. And the windproof frame in the protection assembly is made of organic glass, so that the windproof frame has good transparency and is relatively light.