828 results about "Irrigation efficiency" patented technology

The invention discloses a precise irrigation decision analysis method and system based on crop water demand, and particularly relates to the technical field of crop irrigation. A monitoring area is divided, soil humidity sensors with different depths are installed, moisture state data of a root zone are monitored in real time, moisture gradient change characteristics and moisture retention time deviation characteristics are extracted and analyzed, a moisture fluctuation abnormal index is calculated, the moisture fluctuation abnormal index is compared with a threshold value, and the moisture fluctuation abnormal index is calculated. The method comprises the following steps: dividing underground water fluctuation into high, middle and low underground water fluctuation abnormal levels, and taking corresponding irrigation adjustment measures according to different levels of fluctuation: taking a drainage measure to reduce excessive soil moisture for high-level abnormal fluctuation; crop water demand model parameters are dynamically adjusted through medium-grade fluctuation; a normal irrigation strategy is maintained by low-grade fluctuation, so that negative effects of underground water fluctuation and excessive irrigation on crop root zones and soil structures can be effectively avoided, soil permeability and water storage capacity are maintained, long-term productivity of farmland is guaranteed, and irrigation efficiency and water resource utilization rate are improved.

The invention relates to the technical field of soil monitoring, in particular to a farmland irrigation management and control system based on the Internet of Things, and the system comprises a soil monitoring module, a crop water demand analysis module, an irrigation strategy making module, an irrigation execution control module, a water source management module, a fertilizer distribution module, an irrigation effect evaluation module and an adaptability adjustment module. According to the method, the crop water demand is analyzed by combining the decision tree, the water consumption is accurately calculated, the irrigation strategy optimizes the time and frequency based on the linear programming and simulated annealing method, the scheme adaptation degree is improved, the irrigation link adopts an automatic control and dynamic adjustment mechanism, the environment and crop demand changes are adapted in real time, and the irrigation efficiency is improved. Water source allocation ensures efficient distribution of multiple water sources on the basis of dynamic optimization, the type and quantity of fertilizer feeding are accurately controlled according to crop requirements, the irrigation effect is subjected to self-adaptive optimization of an irrigation plan after crop data evaluation, and accurate, flexible and efficient farmland resource management is integrally achieved.

The invention relates to the technical field of water and fertilizer drip irrigation, in particular to a biogas slurry, water and fertilizer integrated drip irrigation machine. Comprising a filter cartridge which is coaxially arranged in the outer cylinder, a coarse filter screen, a fine filter screen, a first scraper blade and a second scraper blade are arranged in the filter cartridge, water permeable holes are annularly and uniformly formed in the outer side wall of a lower cavity, and a water outlet is formed in the outer side wall of the lower cavity. And a blow-off pipe communicated with the filter cartridge is arranged at the bottom of the outer barrel. By means of multi-layer fine filtering combination, biogas slurry is purified at an irrigation inlet, impurities are reduced, a drip irrigation head is prevented from being blocked, and the irrigation efficiency is improved; the rotary driving mechanism regularly drives the scraping plate to accurately scrape impurities, and automatic cleaning and discharging are achieved by means of the locking opening and closing device and the movable sealing plate; the flow guide cover optimizes biogas slurry dispersion, deals with unstable supply and reduces pipe inlet pressure.

The invention relates to the technical field of closed-loop control, in particular to an irrigation area water gate automatic adjusting system based on fuzzy logic control, which comprises a load monitoring module, a gate parameter optimization module, an environment response adjusting module, a water level threshold setting module, a flow prediction module and a gate feedback control module. According to the method, accurate calculation of the inter-regional load difference is performed by integrating the water resource flow and pressure data, the irrigation efficiency and the response speed are remarkably improved, water requirements can be accurately matched through refined regional load analysis, water resource waste is avoided, and the adaptability of the system to environmental changes is enhanced; environment variables are monitored in real time, gate operation is adjusted, the optimal water level is maintained under the constantly changing condition, agricultural requirements and sustainable utilization of water resources are ensured, predictive analysis of flow data enhances preventive regulation and control of the system, the system can respond to future requirement changes in advance, resource allocation is optimized, and the system is suitable for large-scale popularization and application. The water resource utilization rate and the automation level of irrigation area management are effectively improved.

The invention discloses a unit area irrigation water consumption estimation method and system based on multi-source data fusion, and relates to the field of irrigation water consumption estimation. Multi-source heterogeneous data such as remote sensing images, meteorological data, soil humidity and crop growth information are fused, and observation and model errors are reduced through data assimilation; estimating crop evapotranspiration under an energy balance principle; estimating daily-scale irrigation water consumption by adopting a water balance method; a crop actual irrigation area identification model based on deep learning is introduced, actual irrigation areas of different crop types are effectively distinguished, and the influence of temporal and spatial changes on irrigation efficiency is dynamically reflected. According to the method, high-precision and rapid estimation of the comprehensive unit area irrigation water consumption of a single crop and multiple crops on different regional scales can be realized, the timeliness and accuracy of irrigation water quota evaluation are remarkably improved, and the method has strong adaptability to climate change, soil difference and crop diversity and is suitable for popularization and application. Powerful technical support is provided for precise irrigation and intelligent water conservancy management.

The invention relates to the technical field of agriculture, in particular to a greenhouse energy-saving water consumption monitoring system which is used for solving the problems that in the prior art, historical data and real-time data cannot be combined to accurately predict irrigation water consumption, scientificity and rationality of an irrigation strategy cannot be guaranteed, and the irrigation cost is low. And different environmental conditions and crop growth stages cannot be dynamically adapted. Historical data and real-time data are combined through the irrigation water consumption adjusting module, the irrigation water consumption is accurately predicted through a machine learning model, automatic adjustment is achieved to improve efficiency, multiple factors are comprehensively considered, scientificity and reasonability of an irrigation strategy are guaranteed, different environment conditions and crop growth stages are dynamically adapted, water resource utilization is optimized, and the irrigation efficiency is improved. Cost is reduced, personal errors are reduced through automatic operation, and various crops and complex growth environments are supported.

The invention belongs to the technical field of agriculture, particularly relates to a cranberry water demand dynamic sensing system and a method thereof, and aims to solve the problems that an existing traditional irrigation method is often based on a fixed time table or simple soil humidity measurement, the actual water demand condition of cranberries cannot be timely and accurately reflected, and insufficient irrigation or excessive irrigation is easily caused. In order to solve the problems that in the prior art, water resources are wasted, and the growth and yield of cranberries are possibly influenced, the invention provides the following scheme: the system comprises a monitoring module, a control module and a display module, wherein the monitoring module comprises stem flow rate, leaf water potential, soil water content at different depths and positions, air temperature and humidity, illumination intensity and wind speed data; according to the cranberry water demand monitoring system, accurate monitoring, real-time evaluation and scientific prediction of the cranberry water demand condition can be achieved, then a reasonable irrigation decision and environment regulation and control are guided, and the irrigation efficiency and the water resource utilization efficiency are improved.

The invention belongs to the field of farmland irrigation, and particularly relates to a high-standard farmland water conservancy irrigation system which comprises a water supply pipe, the outer side of the water supply pipe fixedly communicates with a connecting pipe, a water spraying pipe is movably arranged on the inner side of the connecting pipe, the outer side of the water spraying pipe is attached to the inner wall of the connecting pipe, and turbine blades are fixedly arranged at the lower end of the inner side of the water spraying pipe. A plurality of annular openings distributed in a linear array mode are formed in the outer side of the water spraying pipe, a plurality of spray heads distributed in a circumferential array mode are arranged in the annular openings, the spray heads communicate with the water spraying pipe, and a connecting ring is arranged in the water supply pipe. In the farmland irrigation process, the farmland and crops can be conveniently irrigated by adjusting the use position of the spray head, meanwhile, the spraying range of the farmland can be flexibly adjusted according to the growth condition of the crops, nutrient agents can be sprayed to the crops in the irrigation process, and the irrigation efficiency is improved. The farmland irrigation effect is ensured, and meanwhile, the growth requirements of crops are met.

The invention relates to a micro-spraying system irrigation uniformity control method and system, and belongs to the technical field of agricultural irrigation energy saving. Calculating the flow data of each nozzle according to the data of the flow meters of the branch pipes; calculating the pressure distribution of each node under the condition of no throttle valve by using the irrigation area pipe network hydraulic model, and finding out the part with too high or too low pressure in the pipe network; a throttle valve is installed on a main pipe of a pipe network in an irrigation area, and the opening degree of the throttle valve is adjusted and the pressure rise of a water pump is calculated by taking the most disadvantageous spray head in the pipe network as a pressure reference; the flow condition in the pipe network is monitored in real time through the flow meter, and data are uploaded; the pressure is calculated through the pipe network hydraulic model, when the water pressure in the pipe network is abnormal, the throttling valve needing to be adjusted and the opening degree are calculated, workers are informed, and early warning is conducted in time. The service life of the system is prolonged, and the irrigation efficiency and the water resource utilization rate are improved.

The invention discloses a crop growth water demand calculation method and an irrigation system formulated according to the same, and relates to the field of agricultural irrigation. The method comprises the following calculation steps: selecting reference ET0, selecting and confirming the length of a growth stage, selecting a crop coefficient, adjusting the value of Kc ini to reflect the soil wetting frequency, adjusting the values of Kc mid and Kc end to adapt to regional climate conditions, calculating ETc, determining the effective water consumption and calculating the water balance of a soil root system layer. According to the irrigation water distribution system disclosed by the invention, a water demand calculation result in actual agricultural production can be reasonably adjusted and optimized in combination with a local water resource condition and an irrigation system capability, and during fertilization or pesticide spraying, the amount can be more accurately calculated by utilizing the calculated water amount, so that the irrigation efficiency is improved. And meanwhile, selective operation can be carried out according to a fertilization mode required by crops.

The invention relates to the technical field of greening irrigation equipment, in particular to urban greening green plant irrigation equipment which comprises a supporting plate, a water inlet pipe is fixedly connected to the center of the supporting plate, a grounding support is rotatably mounted on the lower end face of the supporting plate, and a uniform sprinkling irrigation assembly is fixedly mounted at the upper position of the peripheral wall of the water inlet pipe; the uniform sprinkling irrigation assembly comprises two sealing bearings fixedly installed on the peripheral wall of the water inlet pipe, and the outer rings of the two sealing bearings are fixedly connected with an irrigation frame. The spray pipe can perform vertical reciprocating swing spray irrigation during forward and reverse rotation, the irrigation range is greatly widened, the comprehensiveness and sufficiency of the green plant irrigation effect are improved, meanwhile, the rotary spray irrigation rate and the irrigation water flow can be adaptively adjusted according to the air humidity, the green plant irrigation effect is further improved, and the green plant irrigation efficiency is improved. More accurate irrigation operation can be carried out on the green plants, and the water waste condition of the irrigation operation of the green plants can be reduced.

The invention relates to the technical field of agricultural irrigation, in particular to an intelligent irrigation dynamic decision-making method and equipment, and constructs an intelligent irrigation fuzzy reasoning and dynamic decision-making method by fusing multi-source remote sensing data and rainfall data and combining water demand characteristics of crops in different growth stages. It can be understood that the method is based on regularly updated remote sensing data, the moisture state of crops is dynamically monitored, and plot-level irrigation decision suggestions are generated. A manager can scientifically formulate an irrigation strategy according to suggestions in combination with the local actual water resource condition and the irrigation system, precise irrigation regulation and control are achieved, and the irrigation efficiency and decision scientificity are improved.

The invention provides an agricultural irrigation control method, system and device driven by an AI large model, and a medium, and belongs to the technical field of agricultural irrigation control, and the method comprises the steps: building an irrigation knowledge base and an irrigation decision set for a target crop based on the AI large model; constructing a target crop parameter set and a water demand prediction model, and training the water demand prediction model by using the target crop parameter set in combination with the irrigation knowledge base; target crop parameters collected in real time are input into the trained water demand prediction model, and target crop water demand prediction is carried out; and screening out an irrigation strategy from the irrigation knowledge base and the irrigation decision set according to the predicted value of the water demand of the target crop, and controlling the irrigation equipment based on the irrigation strategy. Through the combination of the AI large model and the deep learning model, the water demand of the crops is accurately predicted, the irrigation strategy is generated, the irrigation decision accuracy is improved, the waste of water resources is reduced, and the irrigation efficiency is improved.

The invention discloses multifunctional photovoltaic energy-saving agricultural irrigation equipment which comprises a vehicle body, a rotating mechanism, an irrigation pipe, an air supply assembly, a box body and a liquid supply assembly. A control system and a photovoltaic power generation system are mounted on the vehicle body; the rotating mechanism is mounted on the vehicle body; a multi-degree-of-freedom mechanical arm is mounted on the rotating mechanism; the irrigation pipe is mounted at the tail end of the degree-of-freedom mechanical arm, a spray head is mounted at one end of the irrigation pipe, and a Venturi pipe is mounted in the irrigation pipe and is close to the spray head; the air supply assembly is mounted at the tail end of the degree-of-freedom mechanical arm and used for supplying air into the Venturi tube; the box body is installed on the vehicle body, a water supply assembly and a stirring mechanism are installed on the box body, and the water supply assembly is used for supplying water into the irrigation pipe; the liquid supply assembly is installed on the vehicle body and used for adding a nutrient solution into the box body. Precise irrigation of crops can be achieved, the sprinkling area and uniformity of sprinkling irrigation are effectively improved, and the irrigation efficiency and the energy utilization efficiency are improved.

The invention relates to the technical field of separation devices, in particular to a filtering device for water conservancy irrigation. The pipeline comprises a pipeline body, a partition plate, a blocking plate, a filter screen and a cleaning assembly. During use, water is injected into the water inlet pipe from the water injection port and flows towards the transition pipe in the water injection cavity under the action of the partition plate and the baffle, and impurities in the water are filtered and separated by the filter screen and accumulated above the filter screen; filtered water enters the water outlet pipe after penetrating through the filter screen and finally flows out of the filter device from the water outlet, and in the operation process, the cleaning assembly continuously scrapes impurities accumulated above the filter screen from the filter screen and pushes the impurities into the impurity storage cavity. Compared with the prior art, impurities on the filter screen can be cleaned while filtering is conducted, on the premise that filtering is completed, the situation that the amount of water flowing out of the water outlet is reduced due to the fact that the filter screen is blocked is avoided, and the irrigation efficiency is improved while the filtering efficiency is improved.

The utility model belongs to the technical field of agricultural irrigation equipment, and particularly relates to a water-saving irrigation vehicle. Comprising a vehicle body, a water tank and a ditching assembly, the top of the ditching assembly is connected with the vehicle body, the bottom of the ditching assembly is inserted into a ridge to be irrigated, and a ditch for irrigation is formed in the ridge to be irrigated in the advancing process of the vehicle body; the water tank is fixed to the vehicle body, and water in the water tank is guided into a trench through a water guiding assembly. The irrigation vehicle is simple in structure and easy to use, and irrigation efficiency can be improved while irrigation of ridges is guaranteed.

The invention discloses a cotton irrigation decision-making system based on agricultural knowledge guidance and reinforcement learning. The method comprises the following steps: collecting data such as weather, soil and yield, and establishing a standardized agricultural database; a yield prediction model fusing the crop mechanism and deep learning is constructed, and yield responses of different irrigation states are evaluated; and integrating the prediction model with a crop simulation system DSSAT, constructing a simulation environment, optimizing an irrigation strategy in an iteration process by adopting a reinforcement learning algorithm, and realizing a dynamic decision by taking yield gain and water consumption as objective functions. The innovation point is that a knowledge-guided yield prediction network structure is provided, and the prediction precision and the model interpretability are improved; and a reinforcement learning mechanism based on a reward function is designed to realize joint optimization of yield and water saving. The method has the advantages that the problems that traditional irrigation depends on experience, decision lags and adaptability lacks are solved, the irrigation efficiency and the water resource utilization rate are effectively improved, and an intelligent, efficient and water-saving irrigation scheme is provided for cotton planting.

The invention provides a water-saving agricultural pointer irrigation device which comprises a pointer irrigation device main body and is characterized by further comprising a connecting rod, a sensing device and a vibration falling device, the sensing device and the vibration falling device are installed on the two sides of a water spraying opening respectively, and the sensing device and the vibration falling device can be synchronously connected to the connecting rod in an up-down moving mode. And the sensing device and the vibration falling device are electrically controlled to move. The pointer irrigation device has the advantages that through cooperation of the sensing device and the vibration falling device, water drops sprayed out of the water spraying opening partially fall onto the surfaces of stems and leaves, part of the water drops fall into soil, the water drops sprayed out of the stems and leaves fall into the soil through vibration of the vibration falling device, the pointer irrigation efficiency is greatly improved, and water resources are saved.

The invention discloses a multi-sensor fusion agricultural precise irrigation system, which relates to the technical field of agricultural irrigation, and constructs a multi-source sensor data pool, establishes a wind loss calculation model, outputs wind-induced water loss and crop transpiration emission, establishes a demand prediction model and outputs total compensation water. According to the method, environment, soil and irrigation states are monitored in real time through multi-sensor fusion, wind-induced water loss and crop transpiration emission are accurately calculated, the irrigation amount is dynamically adjusted, particularly, the water amount of an edge area is increased under the condition of strong wind, and the irrigation efficiency is improved. Water transpiration is effectively made up, and the problem of uneven water supply is solved. Meanwhile, optimization is fed back according to the actual irrigation effect, the irrigation efficiency and the resource utilization rate are improved, a safety interruption mechanism is arranged, safety and reliability are ensured, and the agricultural irrigation precision and the crop growth environment are overall improved.

The utility model relates to the technical field of irrigation equipment, in particular to planting irrigation equipment which comprises an irrigation box and an irrigation pipe arranged on the side face of the irrigation box, a water pump used for conveying a water source is arranged on the irrigation pipe, and a fixed-point irrigation assembly is arranged on the irrigation pipe. The fixed-point irrigation assembly comprises a fixing ring fixedly arranged on the outer ring side of the irrigation pipe in a sleeving mode, a water outlet hole is formed in the fixing ring, a drainage hole communicating with the water outlet hole is formed in the irrigation pipe, the inner wall of the drainage hole is fixedly connected with a positioning plate, and a sealing plug is movably arranged at the bottom of the drainage hole. A reset spring is fixedly connected between the positioning plate and the sealing plug, and the side face of the sealing plug is fixedly connected with a limiting rod extending out of the positioning plate. By arranging the fixed-point irrigation assembly, fixed-point irrigation can be conducted on fruit trees, the irrigation efficiency of the fruit trees is improved, meanwhile, nozzles which do not need to be used in the distance can be closed, and water source waste caused by continuous irrigation is avoided.

The intelligent spraying irrigation system comprises a movable trolley (1), a water storage tank (2), a variable frequency water pump (3), a water inlet electromagnetic valve (4), a first electromagnetic valve (5), a second electromagnetic valve (6), a liquid level sensor (7), a liquid storage tank (8), a third electromagnetic valve (9), a first quick coupler (10), a first pressure sensor (11), a flow sensor (12), a tree-shaped spraying device and a control system. The tree-shaped spraying device comprises a movable plate trailer (13), a main pipeline (14), a spray head (15), a second quick coupler (16), a fourth electromagnetic valve (17), a second pressure sensor (18) and a storage battery (19). Uniform, intelligent and automatic spraying irrigation of edible mushrooms on the multi-layer cultivation bed frame is achieved, the spraying irrigation precision is high, and the spraying irrigation efficiency is high; the stability of output pressure and flow of the water pump can be improved, the anti-cavitation performance of the water pump can be improved, the operation stability of the water pump can be improved, and the service life of the water pump can be prolonged.

The invention relates to the technical field of landscaping, in particular to a landscaping intelligent irrigation system and a control method thereof.The landscaping intelligent irrigation system comprises a sensor module, a control module and an execution module, the sensor module comprises a soil humidity sensor and a meteorological sensor, and the control module comprises a microprocessor; the microprocessor is in communication connection with the soil humidity sensor and the meteorological sensor, the execution module comprises an electromagnetic valve group for controlling the on-off of an irrigation pipeline in a partitioned manner, an electromagnetic valve is electrically connected with the microprocessor, a spray head is mounted on the pipeline, and the microprocessor is in communication connection with a cloud platform which can be remotely controlled by a user through a mobile phone APP or a Web end. The irrigation system has the technical effects that the problem of resource waste of a traditional irrigation system can be solved, and the irrigation efficiency is improved.

The utility model relates to the technical field of turf laying, in particular to a turf laying device for landscaping, which comprises a sweeping board, and the edge of one side of the sweeping board is fixedly connected with an inclined guide flat pipe. The turf paving device has the advantages that the turf is guided to be paved in front of the ground through the guide flat pipes, water can be sprayed to the roots of the turf through the spraying pipes, so that the roots of the turf can be quickly supplemented with water, meanwhile, the ground can be wetted by the falling water, the water can be directly poured to the joint surface of the turf and soil, the joint effect of the joint surface is improved, and the service life of the turf is prolonged. Meanwhile, the irrigation efficiency is improved, water directly reaches the root system, water evaporation is reduced, and the cleaning roller rotating at a high speed drives the loosening teeth to smash the soil surface, so that the hardened soil surface is loosened, the laid turf can take roots conveniently, and the survival rate of the turf is increased; meanwhile, impurities such as large stones in the soil can be swept away through the dense dry loosening teeth, and the laying effect is improved.

The invention discloses an intelligent drip irrigation control system based on soil moisture content real-time monitoring, and relates to the technical field of agricultural irrigation, and the system comprises a soil moisture content environment collection module which collects and transmits soil moisture and environment parameters through a sensor; the soil moisture content analysis module receives the data, constructs a matrix analysis rule, excavates relevance and predicts an irrigation leakage risk; the irrigation strategy making module generates a comprehensive decision instruction accordingly; the irrigation parameter adjustment module optimizes the parameters to form a control instruction; the irrigation execution feedback module drives the equipment to work and feeds back a result after completion; according to the integrated sensor, real-time accurate monitoring of soil moisture and environmental parameters is achieved, a soil moisture content spatial-temporal distribution matrix is constructed, relevance and rules are mined in combination with an algorithm, differential irrigation instructions are generated, irrigation efficiency is improved, and crop yield and quality improvement is promoted; meanwhile, a dynamic optimization algorithm is introduced to calibrate parameters, and waste and pollution are avoided and the risk of crop damage is reduced through quick response and collaborative irrigation of a leakage irrigation compensation strategy.

The invention provides a one-driving-two water and fertilizer irrigation pressure adjusting method and device based on a sensor network, relates to the technical field of irrigation pressure adjustment, and achieves the effect of improving the accuracy and resource utilization efficiency of an irrigation system through differential modeling and a dynamic adjustment strategy. The laminar flow model and the turbulent flow model are adopted for the main pipeline and the branch pipelines respectively, and an error correction mechanism is combined, so that high precision of pressure and flow velocity calculation in the pipelines is ensured; by means of a multiple regression model, the soil temperature and humidity, the nozzle pressure and the valve opening degree are dynamically associated, and uniformity and intelligent regulation and control of global irrigation are achieved; and finally, through real-time acquisition of soil parameters and optimization of nozzle flow distribution, water and fertilizer waste is reduced, and it is ensured that the soil environment is maintained in an ideal state. Compared with the prior art, the scheme not only improves the irrigation efficiency, but also is suitable for different soil and crop environments, and provides an intelligent, efficient and water-saving solution for a large agricultural irrigation system.

The invention belongs to the technical field of irrigation devices, and particularly relates to an automatic irrigation device for high and steep slope vegetation, which comprises a main water pipe, one side of the main water pipe is connected with a plurality of connecting pipes, branch water pipes are inserted into the end parts of the connecting pipes, and water flow adjusting devices are arranged in the branch water pipes. The water flow adjusting device comprises a limiting ring, a fixing pipe, an adjusting plate, a conical blocking block, a sleeve, a rotating shaft and an impeller, the limiting ring is fixedly connected to the inner wall of the branch water pipe, and the fixing pipe is slidably inserted into the end, close to the main water pipe, of the branch water pipe. According to the slope irrigation device, by arranging the conical plugging blocks and the adjusting plates, when slope plants are irrigated, the branch water pipes with different distances can adaptively adjust the water inflow of the corresponding branch water pipes by changing the rotating angles of the corresponding conical plugging blocks, so that the multiple branch water pipes can relatively uniformly share water pressure, and the irrigation efficiency is improved. The irrigation amount of each branch water pipe to slope vegetation is guaranteed, the irrigation time is shortened, and water resources are saved.

The invention discloses a precise irrigation decision-making method based on soil-crop-environment information, and relates to the technical field of agricultural irrigation, and the method comprises the following steps: calculating the irrigation quota accommodated by a planned wetting layer, calculating the accumulated water consumption of crops, and deciding the irrigation date; according to the method, multi-source information, dynamic threshold optimization and an intelligent feedback mechanism are deeply fused, the planned wetting layer depth is dynamically adjusted according to crop root system distribution to change the irrigation quota, the actual water consumption of crops is calculated through crop-environment data, future weather forecast is considered, and the irrigation efficiency is improved. Soil moisture deep seepage and nitrate nitrogen leaching loss caused by rainfall after irrigation can be effectively avoided, the crop yield and the water and fertilizer utilization efficiency are remarkably improved, and meanwhile a dynamic irrigation system capable of changing according to the environment and crop requirements is formulated by fully considering soil characteristics, crop water consumption characteristics and environment information. The crop yield and the water productivity can be obviously improved.

The invention relates to an integrated gravel filtering device for an agricultural irrigation system, and relates to the technical field of gravel filters, the integrated gravel filtering device comprises a filtering tank body, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are communicated with the filtering tank body, a filtering plate is arranged in the filtering tank body in the height direction of the filtering tank, and filtering holes are densely formed in the filtering plate; a sealing plate is arranged in the filtering tank body, filtering sand is filled between the filtering plate and the sealing plate, a plurality of groups of filtering caps are arranged on the sealing plate, a partition plate is arranged in the filtering tank body, the partition plate is arranged in the height direction of the filtering tank body, and the filtering tank body is divided into a first filtering cavity and a second filtering cavity by the partition plate; the first filtering cavity and the second filtering cavity are both communicated with the water outlet pipe, and a switching assembly used for enabling one of the first filtering cavity and the second filtering cavity to filter a water source is further arranged in the filtering tank body. The irrigation device has the effects that the irrigation efficiency is improved while the filter screen is washed, and the irrigation period is shortened.

The invention belongs to the technical field of agricultural cultivation, and particularly relates to a precise irrigation control system and method for substrate cultivation. The method specifically comprises the following steps: monitoring multi-parameter data, namely a soil humidity index, a plant physiological index and an environmental factor index, in real time through a multi-parameter sensor, and transmitting the data in a wired or wireless manner; the collected multi-parameter data are preprocessed, and then predicted plant water demand is obtained by using an intelligent decision algorithm and is displayed through a visual platform; the on-off state and the flow of the irrigation equipment are automatically adjusted through the control circuit according to the predicted water demand of the plants, the actual water demand of the plants can be accurately matched through multi-parameter monitoring and an intelligent decision algorithm, the situation of excessive or insufficient irrigation is reduced, the irrigation efficiency and the water resource utilization rate are improved, and accurate irrigation is achieved.

The invention discloses a station pool filtering device for water-saving irrigation, and belongs to the technical field of water-saving irrigation. The station pool filtering device for water-saving irrigation comprises a water pumping pipe, one end of the water pumping pipe is fixedly sleeved with a mounting plate, a filtering net is embedded in the mounting plate, the station pool filtering device further comprises a cleaning assembly, the cleaning assembly comprises a pair of scraping plates, a pair of sliding blocks are embedded in one side of the mounting plate in a sliding mode, and a driving assembly is arranged on the water pumping pipe. The driving assembly comprises a motor, a gear and a vertically-arranged rack, the output end of the motor is connected with the gear, the gear is meshed with the rack, the rack drives the pair of sliding blocks to slide when moving up and down, a cutting assembly is arranged in the mounting plate and comprises a moving plate, a containing groove is formed in the moving plate, and a plurality of cutting blades are fixedly arranged in the containing groove. The cleaning assembly is arranged at the water pumping end of the water pumping pipe, the arranged filter screen is cleaned, and the problem that the irrigation efficiency is affected due to the fact that the filter screen is blocked by silt in water during water pumping is solved.