582 results about "Irrigation efficiency" patented technology

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 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 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 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 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 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 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 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 the field of agricultural irrigation and soil remediation, and discloses an enhanced nanobubble water treatment system for saline-alkali soil improvement, comprising: a mixed water tank, the mixed water tank defines a water containing cavity, the water containing cavity communicates with an inlet and an outlet, the inlet is suitable for receiving irrigation water, and the outlet is suitable for being connected to an irrigation system; the activating agent adding device is arranged at the inlet and is suitable for adding an activating agent to the inlet, so that the activating agent and the irrigation water are mixed and then guided into the water containing cavity; the circulating water path is provided with a nano bubble generating device, and the nano bubble generating device is suitable for continuously generating nano bubble water under the assistance of an activating agent under the condition that the circulating water path performs circulating treatment on the water body in the water containing cavity; wherein the activated nano bubble water which is detected to reach the standard by the on-line detection device is introduced into a farmland through the irrigation system for irrigation, so that the leaching effect on salt and the watering, fertilizing and irrigation efficiency are greatly improved.

The utility model discloses a water conservancy irrigation water-saving gate capable of adjusting water flow, which comprises two mounting plates, the same gate is mounted between the two mounting plates in a sealing and sliding manner, the front side and the rear side of the gate are both fixedly connected with lifting mechanisms, the tops of the two mounting plates are fixedly connected with the same concentric-square-shaped frame, and the same concentric-square-shaped frame is fixedly connected with the lifting mechanisms. The front side and the rear side of the concentric-square-shaped frame are fixedly connected with first band-type brake motors, the ends of output shafts of the first band-type brake motors are fixedly connected with the corresponding lifting mechanisms, and the first band-type brake motors are matched with the lifting mechanisms. Through the arrangement of a series of structures, water flow can be accurately controlled and adjusted through electric drive in cooperation with the arrangement of the flow sensor, the situation that water conservancy irrigation is affected due to the fact that the water flow is large or small can be effectively reduced, floating objects in irrigated water can be filtered and shielded, and the water conservancy irrigation efficiency is improved. And meanwhile, the filtered and shielded floating objects can be scraped, collected, hoisted and cleaned, and the device is convenient to use by personnel.

The invention relates to the technical field of water demand prediction, in particular to a crop water demand prediction method and system based on the agricultural Internet of Things, and is applied to accurate moisture management in complex soil structures such as terraces. And in combination with the dynamic weight of interlayer moisture migration, the moisture absorption matrix is updated in real time. Through time sequence sliding and cosine similarity calculation, a moisture retention time matrix is dynamically corrected, and accurate distribution of soil moisture is ensured. A graph theory algorithm is introduced to construct a directed graph model of a water flow path, an interference matrix is generated in combination with binary masks, matching of water absorption and water retention time is optimized, and the irrigation efficiency and the water resource utilization rate are improved. The irrigation strategy can be dynamically adjusted according to the moisture state between the soil layers, moisture waste is avoided, and the accuracy of crop growth moisture supply is improved.

The invention relates to the technical field of in-field path planning, in particular to a reel type sprinkler in-field path planning method for soil mechanical compaction subduction. The invention aims to solve the problems of low sprinkling irrigation efficiency according to the planned path and soil structure damage caused by soil compaction in the existing path planning method in the field. The method comprises the following steps: dividing field parcels by adopting a convex edge scanning algorithm to obtain regular field parcels and irregular field parcels; acquiring initial ridges of sprinkling irrigation paths of the regular field parcels and the irregular field parcels; and planning a sprinkling irrigation path in the field to obtain a planned in-field path, and then starting sprinkling irrigation from the starting ridge. The in-field path planning method is used for in-field path planning of the reel type sprinkling machine.

The utility model discloses an irrigation device for fruit planting, which relates to the technical field of irrigation devices, including a water tank, a power supply box is arranged on the right side of the water tank, a water pump is arranged on the left side of the water tank, a connecting water pipe is arranged on the left side of the water pump, a plurality of groups of protective shells are arranged on the upper end of the connecting water pipe, a water delivery pipeline is arranged on the inner side of the plurality of groups of protective shells, a connecting pipe is arranged on the upper end of the protective shell, and a nozzle is arranged on the side of the water delivery pipeline. The utility model discloses an irrigation device for fruit planting, through the nozzle and the upper nozzle, the nozzle and the outer surface of the side of the upper nozzle are arranged with a plurality of groups of water spray ports, and the water spray ports on the side of the nozzle and the upper nozzle can irrigate in multiple directions, thereby increasing the irrigation area with the soil, and the water spray ports are evenly arranged, which is conducive to more uniform irrigation and watering, and is not affected by the different heights of different fruits after growth, thereby improving the irrigation efficiency.

The invention discloses a water-saving irrigation device and method with a rainwater collection function, and relates to the technical field of garden irrigation, four corners of the water-saving irrigation device are provided with a bearing vehicle body with moving wheels and a water storage tank, the top of the bearing vehicle body is fixedly provided with the water storage tank for storing rainwater, and the upper portion of the bearing vehicle body is further provided with an irrigation assembly connected with the water storage tank and used for irrigation; a switching assembly used for switching irrigation modes is arranged below the irrigation assembly, a rainwater collecting assembly used for collecting rainwater is further arranged on the water storage tank, and an L-shaped cleaning sliding block which is driven by a driving assembly and used for cleaning leaves is slidably connected into the rainwater collecting assembly. Flexible selection of irrigation modes is achieved, a user can rapidly switch a spray irrigation mode or a drip irrigation mode according to water demand characteristics and soil conditions of different crops, spray irrigation is suitable for large-area uniform irrigation, drip irrigation can accurately supply water, waste of water resources is reduced, and the irrigation efficiency is improved.

The invention relates to the technical field of data processing, in particular to a multi-water-source joint scheduling efficient water conservancy irrigation method, which comprises the following steps: constructing a water source farmland initial supply and demand directed graph according to water source farmland geographical distribution information data; according to the water resource information data, obtaining an irrigation intensity parameter of each water source node in the water source farmland initial supply and demand directed graph; obtaining a demand intensity parameter of each farmland node in the water source farmland initial supply and demand directed graph according to the farmland state information data; obtaining an irrigation coefficient of a corresponding edge between the water source node and the farmland node according to an irrigation intensity parameter of the water source node and a demand intensity parameter of the farmland in the water source farmland initial supply and demand directed graph; adjusting water source nodes and farmland nodes in the water source farmland initial supply and demand directed graph based on the irrigation coefficient to obtain a water source farmland target supply and demand directed graph; and scheduling the water source and the farmland according to the water source and farmland target supply and demand directed graph. The irrigation efficiency of multi-water-source joint scheduling is improved.

The invention discloses an irrigation pipe network intelligent scheduling method and system based on a hydraulic model, and the method can simulate the hydraulic behaviors of a pipe network in different operation scenes through the construction of a hydraulic irrigation simulation model, thereby achieving the precise simulation and prediction of the hydraulic behaviors in the irrigation pipe network. On the basis, an irrigation pipe network intelligent scheduling optimization objective function is established by taking optimal water supply quality as an objective according to the requirements of crop types and growth cycles of a target area for water. The minimum absolute error between the actual irrigation amount and the theoretical water demand is considered, key conditions such as the water supply amount constraint, the head valve working pressure constraint and the pipeline pressure constraint are also fused, and the scientificity and rationality of irrigation scheduling are ensured. Therefore, the irrigation efficiency can be remarkably improved, water resources are saved, healthy growth of crops is promoted, and effective technical support is provided for solving the problems of water resource shortage, poor irrigation management and the like in modern agriculture.

The utility model provides an underground drip irrigation emitter, and relates to the technical field of drip irrigation. The underground drip irrigation emitter comprises a support, a water collecting device, a regulating valve and a plurality of outflow devices. The support comprises a plurality of supporting legs, and a water supply channel is arranged in each supporting leg. The water collecting device is provided with a water collecting cavity and installed on the support. The adjusting valve is movably connected with the support and used for enabling the water collecting cavity to be selectively communicated with part of the water supply channels. The outflow devices communicate with the water supply channels in a one-to-one correspondence mode. The irrigation emitter can achieve alternate drip irrigation, local irrigation water flow is pulse water flow, the blocking condition of the irrigation emitter is reduced through the intermittent water hammer effect, and the irrigation efficiency is improved; meanwhile, different sides of the crops can be subjected to drip irrigation, drip irrigation is uniform, and the root systems of the crops are not prone to lateral growth.

The invention discloses an irrigation area multi-crop growth stage precise irrigation method based on deep learning, and relates to the technical field of agricultural intelligent irrigation, and the method comprises the following steps: pre-constructing a data collection system, and through a distributed sensor network, a multispectral image collection module and a data preprocessing unit, carrying out multi-crop growth stage precise irrigation; acquiring irrigation area soil information, meteorological data and multi-crop growth indexes in real time, and generating a standardized data set; and constructing a multiple-input-multiple-output LSTM model fused with the space-time attention mechanism. The deep learning model and the crop water demand mechanism are fused, the space-time attention mechanism is combined to accurately capture the water demand difference of different crops at different growth stages, the adaptation limitation of a traditional system on complex terrains and extreme environments is broken through through the terrain correction and special scene adaptation algorithm, the irrigation scheme better meets the actual demand, and the irrigation efficiency is improved. And in cooperation with a priority scheduling and fault quick response mechanism, the irrigation instruction is ensured to efficiently fall into the ground, and the automation and collaboration level of irrigation area management is integrally improved.

The utility model provides an irrigation device for grassland cultivation, which relates to the technical field of grassland cultivation irrigation, and comprises a positioning chassis, an adjusting mechanism and a spraying mechanism, the adjusting mechanism comprises a housing, a water inlet pipe, a water outlet pipe, a conical sealing plug and a telescopic assembly, the spraying mechanism comprises a rotating disc, a conveying pipe, a driving assembly, a lifting assembly, a plurality of atomizing nozzles and a plurality of swing assemblies, the swing assemblies are arranged at the top of the rotating disc at equal intervals, and each atomizing nozzle is fixedly arranged on one swing assembly. According to the spraying device, a plurality of atomizing nozzles can be driven to longitudinally swing to adjust the spraying distance, and meanwhile, the plurality of atomizing nozzles can be synchronously driven to horizontally rotate, so that the situation that water cannot be sprayed in a grassland area between every two atomizing nozzles is prevented, spraying dead angles and irrigation omission are further prevented, and improvement of the irrigation efficiency and effect is facilitated.

The invention provides a water and fertilizer integrated zoned irrigation method and system for strawberry planting, relates to the technical field of strawberry planting and fertilization, and aims to solve the problem that in related technologies, the water and fertilizer requirements of strawberry plants are affected by growth stages, environments and self states, but traditional zoned irrigation lacks of real-time dynamic and accurate determination of irrigation volume based on regions, and the irrigation efficiency is poor. The utilization efficiency of water and fertilizer is low, and the quality and yield of strawberries are influenced. The method comprises the following steps: acquiring environment data and matrix data of an area in a first time period; acquiring a substrate humidity change rate and a substrate conductivity change rate of the region in a second time period according to the substrate data; according to the environment data, the substrate humidity change rate, the substrate conductivity change rate and preset parameters, determining the required intensity of the current irrigation period of the area; according to the current irrigation period demand intensity and a preset reference irrigation volume, the current irrigation volume of the area is obtained; when the area meets the irrigation triggering condition, the nutrient solution with the irrigation volume is applied to the area.

The utility model relates to the technical field of irrigation and water conservancy engineering, in particular to an efficient rural farmland irrigation device which comprises a main body mechanism, an irrigation mechanism and an adjusting mechanism, the irrigation mechanism is installed at the top of the main body mechanism, the adjusting mechanism is installed at the top of the irrigation mechanism, and the main body mechanism comprises a bottom plate. The irrigation mechanism comprises a water tank, the water tank is fixedly connected to the upper surface of the bottom plate, the adjusting mechanism comprises a supporting pipe, the supporting pipe is fixedly connected to the upper surface of the water tank, the top of the supporting pipe is rotationally connected with a sleeve through a turntable bearing, and the outer side wall of the sleeve is fixedly connected with a first driven gear; in the using process, the height and the angle of the spray head are comprehensively adjusted through the adjusting mechanism, so that the spraying irrigation area of the spray head is enlarged, the position of the device does not need to be frequently adjusted, the labor intensity of workers is reduced, and the spraying irrigation efficiency is improved.

The utility model relates to the technical field of agricultural production equipment, in particular to a rotatable translation type sprinkling machine which comprises a support, an electric push rod, a top seat, a connecting rod, a sleeve, a sprinkling pipe, a nozzle, a rotating component and an auxiliary component, the connecting rod is fixedly connected with the top seat and located below the top seat, and the sleeve is fixedly connected with the connecting rod and located below the connecting rod. The spraying pipe is fixedly connected with the sleeve and located on the inner wall of the sleeve, the spraying head is fixedly connected with the spraying pipe and located below the spraying pipe, the rotating component is arranged above the support, the auxiliary component is arranged below the top base, and the spraying pipe is fixed below the top base through the connecting rod and the sleeve. The spraying pipe is connected with external equipment to spray water out through the spraying head to achieve irrigation, under the assistance of the auxiliary component, the spraying angle can be changed by controlling the rotating component, and therefore the irrigation efficiency is greatly improved.

The utility model provides a water and fertilizer drip irrigation device for close planting of corn, and relates to the field of agricultural irrigation. Penetrating pipe holes are formed in the two ends of the water and fertilizer tank respectively; a bearing plate is fixedly mounted at the opening part of the upper end of the water and fertilizer tank. The water droppers are respectively inserted above the corresponding corn roots, so that water and fertilizer in the water and fertilizer tank are dripped to the corresponding corn roots through the water droppers, the water and fertilizer permeate to the corn roots, accurate supply and efficient utilization of the water and fertilizer are achieved, waste of water and nutrients is reduced to the maximum extent, and compared with a traditional irrigation mode, the water and fertilizer irrigation device has the advantages that the water and fertilizer irrigation efficiency is improved. According to the drip irrigation device, the utilization rate of water and fertilizer can be increased by more than 30%, water resources and fertilizer are effectively saved, and the problems that fertilization and watering are needed when corns are densely planted, so that water and fertilizer need to be drip-irrigated above the roots of the corns, otherwise, the water and fertilizer cannot permeate into the roots of the corns, and the yield and quality of the corns are affected are solved.