168 results about "Soil depth" patented technology

The invention provides an intelligent early warning method and system for phosphorus tailing improved soil heavy metal migration, relates to the technical field of computers, and accurately predicts the main migration direction of heavy metal pollutants by combining factors such as terrain gradient, hydrological flow direction and soil structure heterogeneity. The method comprises the following steps: acquiring soil information of a to-be-detected area and soil potential information of a detection point in the to-be-detected area; determining heavy metal concentration information of the detection point according to the soil potential information; the heavy metal concentration information is used for reflecting heavy metal concentration distribution conditions corresponding to different soil depths of the detection points; determining migration direction information of the heavy metal at the detection point; the migration direction information is used for reflecting the corresponding heavy metal migration direction distribution condition of the heavy metal of the detection point in the three-dimensional space; and predicting a pollution diffusion area based on the migration direction information, the organic decomposition rate and the underground water level fluctuation information, and performing visual display.

The invention discloses an intelligent agricultural water-saving irrigation system and a control method, and relates to the technical field of agricultural irrigation. Comprising the following steps: a land area planning module performs equal-area division on a farmland, sets a detection node array, and monitors water retention conditions of different soil depths; the moisture gradient characterization module calculates the vertical moisture gradient and the direction of the vertical moisture gradient of the evaluation area in real time through edge calculation. And the irrigation water amount correction module fuses and generates a target water-holding capacity based on the leaf stomatal conductance signal and the moisture gradient. The irrigation circulation termination control module uses pulse type infiltrating irrigation, and sets double termination conditions of the water-holding capacity change rate and the permeability. The closed-loop feedback adjustment module detects the soil water content after irrigation, characterizes the water leakage risk and feeds back and adjusts the irrigation water amount, closed-loop control is formed, and effective utilization of water resources is ensured.

The invention discloses a soil oxygen dynamic prediction method for precision agriculture, and belongs to the technical field of soil oxygen prediction, and the method comprises the following steps: S1, collecting key parameters of different soil depths in a research area, and S2, calculating a soil oxygen diffusion coefficient according to the key parameters of different soil depths in the research area; s3, calculating the respiration rate of the soil root system; s4, constructing a soil oxygen consumption model; and S5, carrying out iterative calculation to obtain soil oxygen concentration distribution at different moments and different depths. The method can solve the problem that the oxygen concentration of the soil is influenced by complex factors such as moisture, temperature, porosity, root respiration and microbial activity, and provides a scientific basis for precise agricultural irrigation, soil health assessment and oxygenation irrigation strategy optimization.

The invention relates to a self-adaptive seeding density regulation and control seeder, which realizes optimization of seeding parameters by dynamically adjusting seeding density, seeding quantity, seeding depth and fertilization quantity, realizes annular fertilization by rotating a fertilization pipe, synchronously operates the fertilization pipe and a covering shovel, concentrates fertilizer around plant root systems, promotes development and extension of the root systems, and improves the seeding density. High-pressure gas is used for assisting seeding and fertilization, blockage is prevented, smooth flowing of seeds and fertilizer is ensured, the quantity is accurately controlled through the metering seed box and the quantitative fertilization box, resource utilization is optimized, resource waste is reduced, and the crop yield and quality are improved; through dynamic adjustment of sowing parameters, annular fertilization, an anti-blocking function and synchronous combined action of seed and fertilizer, the planting quality is improved, it is ensured that seeds are located at the most suitable soil depth, diseases are reduced, the health condition of crops is improved, the yield and quality of the crops are improved, resource waste is reduced, and the intelligent level of agricultural production is improved by integrating the measures.

The invention belongs to the technical field of analysis of nitrogen content data in soil, and discloses a corn cultivation-oriented soil monitoring method, device and equipment, and the method comprises the following steps: selecting sampling points according to corn root system distribution to obtain nitrogen content data curves of different levels of soil depths; according to the nitrogen content data curve, the nitrogen element consumption of each layer of soil depth at the current moment is determined; calculating the nitrogen element offset of each layer of soil depth according to the nitrogen element consumption; determining the soil depth of the growth part of the corn root system at the current moment according to the nitrogen element offset, and determining the additional nitrogen content supply degree according to the fluctuation change of the nitrogen element offset of the soil depth of the growth part of the corn root system at the current moment; fertilizing the surface soil of the corn according to the supply degree of the extra nitrogen content, and respectively analyzing the normative value of the depth of each layer of soil; according to the normative value of the depth of each layer of soil, soil monitoring of corn cultivation is realized.

The utility model belongs to the technical field of sampling devices, and particularly relates to a soil plough layer fixed-point sampling device which comprises a sampling barrel. Through arrangement of a positioning mechanism and cooperation of a sealing plate and a pressing plate, the depth of soil sampled by the sampling barrel can be accurately controlled, so that the soil depth fixed-point sampling effect is achieved, and the soil detection precision is improved, namely, according to the depth of soil needed by the sampling barrel, an inner gear can be pushed, and the pressing plate can be pulled to drive a sealing block to move upwards; the sampling barrel can be vertically inserted into the soil at a sampling site to sample the soil until the sealing block moves upwards to a specified height, the internal gear is loosened, and the pressing plate is moved and limited, but after the soil at a specified depth is sampled, the sampling barrel does not perform sampling in a full load manner, the sampling barrel can be pulled out, and the internal gear is pushed out again; limiting on the pressing plate is relieved, the pressing plate is pushed to be matched with the sealing block to push the sampled soil into the sample collector, and then soil sampling at the next position can be conducted.

The invention relates to the field of irrigation valve control, in particular to an intelligent valve group for irrigation of hydraulic engineering and a control system. According to the system, firstly, humidity data of different soil depths of an irrigation area where each sprinkling irrigation valve is located at each moment and the valve opening degree of each sprinkling irrigation valve during last irrigation are obtained, and for each irrigation area, the humidity data of different soil depths are divided to obtain an irrigation period of each soil depth; obtaining the moisture demand degree of each soil depth based on the change of the humidity data in each irrigation period of each soil depth, and obtaining the optimal valve opening degree of each irrigation area according to the difference of the moisture demand degrees of the same soil depth between each irrigation area and other irrigation areas and the valve opening degrees of the other irrigation areas. And the crops are irrigated. The opening degree of the sprinkling irrigation valve can be accurately controlled, so that the requirement of current crops for water is met, and the irrigation effect is improved.

The invention discloses a sample selection device for natural resource engineering surveying and mapping, and relates to the technical field of engineering surveying and mapping. The bottom plate is arranged at the lower end of the sampling pipe in a sleeving manner and is used for ensuring that the sampling pipe is always in a vertical state during sampling, and the depth-keeping sampling mechanism is arranged at the bottom of the movable groove and is used for sampling soil with the required depth. The tip end of the bottom of the sampling pipe is inserted into a soil sampling area firstly, the sampling pipe is rotated to vertically drill into soil, after the through groove is drilled into the soil needing to be sampled by a depth, a soil sample can be taken out more conveniently by utilizing the depth-keeping sampling mechanism, and meanwhile, depth-keeping sampling can be carried out on the soil needing to be sampled.

A soil moisture gauge for determining a level of moisture in a plant pot has an elongated main body, which has a lower tip and grooves formed in and along the main body. A graduated scale is formed in the main body over a distance corresponding to a maximum expected soil depth when the gauge is inserted into soil contained in the plant pot. When the gauge is inserted into the plant pot and then pulled out of the plant pot, moist soil is retained in the grooves whereas dry soil falls from the grooves, whereby a user can read moist soil depth on the graduated scale. The reading from the soil moisture gauge can be used as an input to a system to adjust a drying profile that indicates to a user a time by which the plant should be watered.

The invention relates to an agricultural non-point source polluted soil nitrate nitrogen in-situ monitoring system and method, and aims to solve the technical problem that accurate in-situ monitoring of soil leaching nitrate nitrogen and a migration rule is difficult to realize. Wherein the soil leaching solution extraction device comprises moisture sensors buried in different soil depths, a leaching solution extraction probe, a solution storage container and a negative pressure source, and the detection device comprises at least two groups of micro-flow pool channels connected in parallel and a photoelectric detection path corresponding to nitrate nitrogen ultraviolet light absorption and non-absorption wavebands; the liquid pumping pipeline is respectively communicated with the liquid storage container and the micro-flow pool channel; the control module receives information collected by the moisture sensor and determines whether to send a negative pressure source starting instruction or not after comparing the information with a set value, a negative pressure cavity is formed in the leaching solution extraction probe, and soil leaching solution collection is achieved. The in-situ monitoring of the leaching nitrate nitrogen can be realized without disturbing the soil structure; the result is continuous, accurate and reliable, and a reliable way is provided for obtaining accurate data information related to agricultural non-point source pollution distribution, migration, development trend and the like.

The invention relates to the technical field of intelligent agriculture, in particular to an intelligent agricultural water-saving irrigation control system based on a wireless sensor network, which comprises the steps of acquiring crop information, judging an irrigation regulation and control stage, marking land parcels, reading marks, extracting serial numbers of associated acquisition points to divide data transmission priorities, humidity measurement values of different depths are extracted based on the priority list and compared with a crop root layer demand threshold value to identify a water layer needing to be supplemented, root layer types are distinguished according to the soil layer depth, intervals or continuous irrigation periods are set, and the water supply rhythm is arranged; water supply arrangement is read, and instruction contents such as plot numbers, starting and ending time and water supply depth are generated and combined into tasks capable of being continuously called. By monitoring the crop growth and the soil humidity in real time, the irrigation strategy can be accurately judged and dynamically adjusted to meet the water requirement of each stage, the crop root depth and the soil humidity are accurately matched, the irrigation periods of deep and shallow soil layers are optimized, and a flexible scheme is provided to improve the water resource utilization efficiency.

The invention discloses a system and a method for identifying a vibration signal type based on POTDR, and relates to the technical field of optical fiber sensing. The system comprises a laser, a circulator, an optical fiber to be measured, a polarization beam splitter, a photoelectric converter assembly, a signal collector and a signal processing unit. The method comprises the following steps: when a vibration signal generated by a surrounding environment affects an optical fiber to be measured, obtaining a measurement result of vibration signal characteristics based on a POTDR demodulation technology; vibration signals at any position are collected, and a data relation library of the soil environment, the soil depth and the vibration signals is established; and based on the established data relationship library, identifying vibration signal characteristics in different soil environments and different depths, and further identifying the signal type of vibration. According to the invention, based on the IQ demodulation technology of POTDR, the soil medium characteristics and the burial depth are fused, and the accuracy of vibration signal type identification is improved.

The invention relates to the technical field of geological sampling, in particular to mining geological sampling equipment which mainly comprises a bottom frame, a fixing plate fixedly mounted on the top surface of the bottom frame, a drilling machine arranged above the fixing plate, a connecting pipe fixedly mounted at the lower end of the drilling machine, and a rock core pipe in threaded connection with the lower end of the connecting pipe. The anti-falling mechanism is arranged in the rock core pipe, and the fixing mechanism is arranged below the connecting pipe. When a connecting pipe is connected with a rock core pipe, the connecting pipe extrudes a round frame to drive a connecting strip and a first cylinder to move to the lowermost portion of a second groove body, a first elastic piece applies elastic force to a movable frame, the movable frame pushes oblique teeth to extrude soil in the rock core pipe, and due to the fact that the oblique teeth are inclined upwards, sampled soil can enter the rock core pipe upwards; the outer wall of the soil is extruded by the helical teeth, so that the sampled soil is not easy to fall off from the rock core pipe, and the integrity of the soil and the subsequent detection accuracy of the soil with different soil layer depths are ensured.

The invention provides a winter wheat root system water-saving property identification method, system and device, and relates to the technical field of crop water-saving property identification, intercropping is performed in a specified test area, and a competitive area and a non-competitive area are divided to calculate an area competitive index. Collecting a winter wheat root system sample in the elongation stage, analyzing the root system length and surface area of the sample in different soil depths, and generating a root system growth index; meanwhile, acquiring soil water content data, calculating the water absorption capacity and the water utilization efficiency of the winter wheat, and analyzing a root system water absorption coefficient in combination with a root system growth index; and generating a water-saving evaluation index according to the water utilization efficiency and the root water absorption coefficient, and comparing the regional competition index with a set water-saving threshold value to judge the root water-saving property of the winter wheat.

The invention provides a rooter. The rooter comprises a machine frame and two hoeing units installed at the bottom end of the machine frame. The hoeing unit is mostly used for shallow ploughing a soil surface layer 5-15 cm away from the soil surface layer by adopting a coulter, and mostly, the blade part is used for transversely cutting surface soil and removing weeds along with the power, so that the purposes of loosening the surface soil, removing the weeds and reducing soil moisture evaporation are achieved, and the hoeing effect of the hoeing unit is improved. The shallow soil hardening is prevented; the coulter moves within the range of 5-15 cm away from the soil surface layer, in order to control the soil depth of the coulter, an adjusting unit is adopted for adjustment, the lower the ground clearance of the end of the rack is, the coulter is more and more deep into the soil, and on the contrary, the higher the ground clearance of the end of the rack is, the more and more close to the soil surface layer; the coulter is sequentially in contact with soil, transversely scrapes the soil, pries up surface soil and is finally lifted away from the bottom surface, hoeing action is completed, and then circulation is performed.

The invention discloses a method for tracing phosphorus pollution in water based on nano colloid coupled organic matter fingerprints. The method comprises the following steps: acquiring a water sample of at least one to-be-traced water body and soil samples of at least one soil depth on a plurality of positions in a peripheral area of the to-be-traced water body; respectively determining fingerprint information of the phosphorus-polluted nano colloids with various particle sizes in the water sample and the soil sample; and screening out the fingerprint information of the phosphorus-polluted nano-colloid in at least one soil sample similar to the fingerprint information of the phosphorus-polluted nano-colloid in the water sample, and taking the position of the screened at least one soil sample as a first source of phosphorus pollution in the water body to be traced. According to the method disclosed by the invention, the soil sample related to water pollution can be effectively screened out by constructing the unique fingerprint spectrum of the phosphorus pollution particles and comparing the fingerprint spectrum information of the phosphorus pollution nano colloid in the water sample and the soil sample, so that the position of the pollution source is determined.

The invention discloses an efficient plant cultivation device for garden building engineering construction, and relates to the technical field of plant seedling raising. The device comprises a main body frame, wherein a cultivation table is arranged on the main body frame; the soil loosening mechanism comprises a plurality of soil loosening claws which are installed on the cultivation platform and used for stirring soil, each soil loosening claw is fixedly installed on the connecting column, the soil loosening mechanism further comprises a plurality of cultivation barrels which are installed on the cultivation platform and used for containing the soil, and a plurality of vertically-downward spraying holes are formed in the surfaces of the soil loosening claws; the soil loosening claws are driven to reciprocate in the circumferential radius direction of the cultivation barrel through the matching effect of the moving mechanism and the sliding groove mechanism, so that the turning area of the soil loosening claws in the horizontal direction of the soil is increased, and the loosening efficiency of the soil in the horizontal direction is improved; meanwhile, the soil loosening claws are driven to reciprocate in the vertical direction under the matching action of the moving mechanism and the reciprocating mechanism, so that the turning area of the soil loosening claws in the depth direction of the soil is increased, and the efficiency of loosening the soil in the vertical direction is improved.

The invention relates to the technical field of farmland available nutrient information online acquisition, and discloses an online farmland available nitrogen and phosphorus nutrient networking monitoring method which comprises the following steps: firstly, burying a plurality of sensor combined probes and sampling probes in different depths of farmland monitoring area soil; secondly, constructing a monitoring device at a farmland intersection to extract soil leaching solutions at different depths and monitor the content of available nitrogen and phosphorus nutrients on line; and finally, uploading a monitoring result to a cloud platform for storage, analysis and processing. According to the method, the dynamic change of available nitrogen and phosphorus nutrients in different depths of soil is monitored on line, so that farmland available nutrient information is obtained on line, accurate management of crop nutrients is realized, and the problems of hysteresis and data distortion of a traditional sampling detection method are solved; meanwhile, nutrient distribution of a monitoring area is managed in combination with an internet cloud platform, space nutrient information of a certain farming area is obtained, the fertilization mode is dynamically adjusted, the utilization rate of chemical fertilizer is effectively increased, and a scientific basis is provided for agricultural non-point source pollution prevention and control.

A soil thickness / depth determining system and method may be used to predict soil depth / thickness.

This invention belongs to the field of soil environmental monitoring and discloses a three-dimensional prediction method for organic matter in soda saline-alkali soils. The method includes the following steps: First, multi-source remote sensing, environmental, and soil organic matter measurement data are collected, and a unified coordinate resolution is established to create a grid. Then, land cover features are extracted using UAV imagery and DSM (Digital Signal Processing), and land cover classification is completed by combining shadow restoration. Sub-pixel endmember abundance is calculated using satellite pixel aggregation data. A three-dimensional covariate dataset is constructed by fusing various features with soil depth. Finally, an ExtraTrees model is built to predict the three-dimensional distribution of organic matter layer by layer. This invention integrates multi-source remote sensing data to build a complete technical system, which can accurately characterize differences in surface composition, simultaneously represent the spatial distribution and vertical variation of organic matter, and effectively solve problems such as mixed pixel interference, poor data coordination, and insufficient three-dimensional prediction. It has strong practicality and good application prospects.

The invention discloses a soil depth micro-explosion soil loosening device, and belongs to the technical field of agriculture and forestry soil loosening, the soil depth micro-explosion soil loosening device comprises a combustion chamber, the outer surface of the combustion chamber is fixedly provided with an outer shell, the inner wall of the outer shell is fixedly provided with a liquefied butane gas tank, and a gas outlet of the liquefied butane gas tank communicates with a gas conveying pipe; a liquefied butane gas tank is arranged to be matched with a fuel gas nozzle, a spark plug, a gas inlet and a gas outlet for use and matched with a ground drilling screw for use, a ground drilling driving motor is used for driving the ground drilling screw to be driven into the ground by a certain depth, and liquefied butane injected into a combustion cavity is mixed with air to be matched with the spark plug to generate instantaneous explosion; generated high-pressure gas is sprayed out through the drilling spiral to enter the underground, soil is driven to be broken under the action of the high-pressure gas, a large number of gaps are formed in the deep layer of the soil, the soil can be effectively loosened, and compared with large mechanical ploughing equipment, handheld operation is more suitable for loosening hardened soil where crops are planted.

The utility model belongs to the field of sand plants, and particularly relates to a sand plant sand burial depth monitoring device which comprises a monitoring mechanism, a supporting mechanism is arranged on the surface of the monitoring mechanism, and a fixing mechanism is arranged on the surface of the monitoring mechanism. The monitoring mechanism, the supporting mechanism and the fixing mechanism are used in cooperation, the length of plants planted in the sand can be monitored through the monitoring mechanism in the sand planting process, the monitoring mechanism can be supported through the supporting mechanism, and fixing can be conducted through the fixing mechanism when the supporting mechanism needs to be recycled; the problems that in the sand land plant planting process, planting is generally conducted by digging holes with tools, but the digging depth is not very accurate generally, so that the planted plants are not located in the soil depth suitable for survival, or the planted plants are blown away by strong wind due to the too small depth, and consequently the follow-up growth of the plants is affected are solved.

A supporting seat is arranged at the top of a variable speed driving box, an angle adjusting disc and a vertical positioning shaft are arranged on the supporting seat, a handrail fixing seat is fixed to the upper portion of the supporting seat, the vertical positioning shaft penetrates through the handrail fixing seat, and a bearing is arranged between the vertical positioning shaft and the handrail fixing seat. A traction type positioning assembly is arranged in the handrail fixing base and used for achieving positioning after the horizontal angle is adjusted. The supporting seat is also provided with a positioning cylinder which is matched with a swing adjusting sheet on the handrail to realize the adjustment of the vertical operation height of the handrail; a nut seat and a screw rod are further fixed on the plough blade swing rod and used for achieving swing adjustment of the plough blade in the vertical direction, and the adjusting structure is used for adjusting the soil eating depth. The soil turning device is further provided with a swing adjusting assembly used for adjusting the soil turning depth.

A soil thickness / depth determining system and method may be used to predict soil depth / thickness.

The invention discloses an automatic soil covering type punching fertilizer applicator, and relates to the technical field of agricultural machinery equipment, the automatic soil covering type punching fertilizer applicator comprises a suspension frame, the suspension frame can be fixed on an agricultural rotary cultivator, the other side of the suspension frame is slidably connected with a connecting seat, the connecting seat is provided with a punching assembly, the punching assembly comprises a drilling rod, the drilling rod is hollow, and the drilling rod is provided with a hole; a screw-in spiral blade is fixedly mounted on the outer surface of the screw rod and is conical; the fertilizing unit comprises a feeding hopper and a feeding rod, the upper end of the feeding hopper is fixedly installed on the connecting base, the lower end of the feeding hopper is rotationally connected with the drilling rod, the feeding rod is located in the hollow drilling rod, a blocking plug is fixedly installed at the lower end of the feeding rod and can block the lower end of the drilling rod, and an annular elastic blocking layer is fixedly installed between the blocking plug and the inner wall of the drilling rod; according to the device disclosed by the invention, after punching, fertilizer is output from the bottom of the drilling rod, and the upward movement of the drilling rod and soil covering are synchronously carried out, so that the fertilizer can be applied at multiple soil depths by punching at one time.

The present application belongs to the technical field of vegetable planting, and particularly relates to a three-color leek cultivation method. The three-color leek cultivation method provided by the present application comprises the following steps: after leek is grown in an open field to a plant height of 28-35 cm, the leek is grown in the dark for 3-6 days, the leek grows yellow leaves, the yellow leaves grow to 5-15 cm, and the three-color leek is obtained by harvesting the leek with a soil depth of 3-5 cm. The cultivation method adopts an open field + covering and shading mode, the leek is grown in the open field for 23-26 days, and the leek is covered and shaded for 3-6 days, so that the production time of one crop is 27-32 days. The three-color leek production is easy to operate and good to manage. When large-scale planting of the three-color leek is performed, a shading arched shed can be built after the leek grows to a certain height, so that the cultivation efficiency of the three-color leek can be significantly improved. The three-color leek has a low content of coarse fibers, a good quality, and a good taste. Compared with leek production, the three-color leek production can increase the annual income per mu by 52.57%.

The invention relates to the technical field of water conservancy projects, in particular to water conservancy project dam reinforcing equipment which comprises a plurality of reinforcing mechanisms connected through bolts, a drainage mechanism is arranged in the middle of the lower portion of a small number of reinforcing mechanisms, a plurality of isolation mechanisms are arranged on the periphery of the drainage mechanism in an array mode, and each reinforcing mechanism comprises a reinforcing frame. An arranged moisture absorption assembly efficiently absorbs excessive moisture through high-density sponge and a hydrophilic thin copper pipe, a continuous dehumidification channel is formed in cooperation with a liquid pumping device, a drainage mechanism can accurately supplement water to dry soil, soil of different depths can be adapted through adjustment of a piston plate, permeation damage caused by excessive moisture or cracking caused by insufficient moisture is avoided, and the moisture absorption effect is good. The dam body soil is ensured to be in a stable state all the time, the fine sand of the isolation frame can prevent clay from caking to block the moisture absorption assembly, a breathing space is reserved for the high-density sponge, the continuous water absorption efficiency is guaranteed, and a reinforcing unit with a drainage mechanism and an isolation mechanism can be flexibly arranged according to the requirements of the dam.