802 results about "Irrigation water" patented technology

The invention discloses an intelligent water and fertilizer integrated irrigation system based on an Internet of Things sensor and a large language model, and relates to the technical field of intelligent agriculture. The system obtains soil, weather and plant growth state data in real time through Internet of Things sensors, including a soil sensor, a weather sensor and a multispectral sensor, deployed in a farmland; the method comprises the following steps: based on a large language model architecture, integrating preset agricultural field knowledge base data, performing field adaptive fine tuning on model parameters by adopting a data migration technology, and constructing an intelligent irrigation control model with a dynamic decision-making function; the control model analyzes sensor data and crop growth requirements, generates a water and fertilizer supply strategy, calls an internet-of-things control interface of the water and fertilizer all-in-one machine, and automatically adjusts irrigation water quantity and proportional supply of nutrient elements such as nitrogen, phosphorus and potassium. According to the invention, Internet of Things perception and large model decision are fused, and different environments are adapted through fine adjustment, so that closed-loop precise control is realized, and the water and fertilizer utilization rate and the crop yield are remarkably improved. Actual measurement shows that the system can improve the water and fertilizer utilization rate by 30% or above, and the crop yield is increased by 15-20%.

The invention relates to the technical field of agricultural engineering and ecological environment protection, in particular to a saline-alkali soil desalination improvement system and method based on brackish water recycling. The system comprises a data collection module which collects soil salinity data, meteorological data and crop growth data of the saline-alkali land in real time; the data processing and analyzing module is used for receiving and preprocessing the soil salinity data, the meteorological data and the crop growth data of the saline-alkali land, constructing a soil salinity prediction model and outputting a soil salinity prediction result; the irrigation strategy decision module is used for generating an optimal irrigation strategy by adopting a reinforcement learning algorithm according to the soil salinity prediction result and the preprocessed crop growth data; and the irrigation control system is used for performing brackish water irrigation operation on the saline-alkali soil according to the optimal irrigation strategy. Precise regulation and control of saline-alkali soil salinity can be achieved, brackish water is adopted as irrigation water, water resources are saved to a certain degree, and therefore the improvement cost of saline-alkali soil is reduced.

The invention relates to the technical field of agricultural irrigation monitoring, and discloses a multi-source sensing-based irrigation water utilization coefficient intelligent monitoring method and system, and the method comprises the steps: collecting multi-source data through unmanned plane spectrum sensing, a ground Internet of Things sensor and a crop growth model, carrying out the time-space alignment, abnormal value elimination and standardization processing of the multi-source data, and carrying out the monitoring of the utilization coefficient of irrigation water. Constructing a data set; constructing a three-dimensional digital twinborn model of the irrigation area, and simulating hydrological processes under different irrigation strategies to generate a virtual irrigation water utilization coefficient reference value; performing multi-source feature fusion on the data in the data set through a CNN-LSTM-RF model to obtain target feature data; inputting the target feature data into a PPO algorithm, dynamically optimizing irrigation parameters, maximizing an actual irrigation water utilization coefficient, and outputting an optimal irrigation strategy; irrigation is conducted based on the optimal irrigation strategy, the irrigation water utilization coefficient is monitored in real time, and when the irrigation water utilization coefficient is lower than a set threshold value, early warning information is automatically sent out; according to the invention, irrigation water utilization coefficient monitoring and management are realized.

The invention discloses a loop heat pipe and water heat storage coupling system and a working method, and belongs to the technical field of heat storage. The system has the modes of light gathering of the light-following trough heat collector, heat conduction of the loop heat pipe, heat storage of the water storage tank and warm water irrigation by using the stored heat water. When sunlight is sufficient in the daytime, the system converts solar energy into sensible heat of water in the heat storage water tank and stores the sensible heat, and the sensible heat is insulated by soil to slow down heat loss; when plants need to be irrigated, warm water in the irrigation water tank is used for irrigation; at night or in the absence of illumination, warm water in the heat storage water tank exchanges heat with air in the greenhouse, so that a lasting and stable heat supply source is provided for the greenhouse. Solar energy collected by the heat collecting groove is efficiently transmitted into the water tank through the loop heat pipe driven by temperature difference to be converted into sensible heat of water to be stored, the sensible heat is used for increasing the greenhouse temperature and irrigating plants when heat is needed at night, and the purposes of efficiently storing heat in the daytime and continuously supplying heat at night are integrally achieved.

The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.

The invention discloses an intelligent water storage irrigation system suitable for ecological restoration of an abandoned mine, and relates to the technical field of ecological restoration, and the system comprises a multi-source water quality regulation and control module which is used for providing an irrigation water source adaptive to plant growth and soil improvement requirements in different restoration subareas; the ecological perception decision module is used for monitoring ecological indexes in real time; generating an irrigation decision executed according to the global scheduling plan through cloud data fusion analysis; the geology and hydrology safety module is used for constructing a digital twinborn model of a mine area and simulating restoration scenes under different irrigation decisions; the distributed irrigation module is used for building a distributed irrigation pipe network; and an energy circulation module. According to the method, fundamental transformation from single water supply to water-soil-plant synergistic remediation is achieved, the integrity of ecological remediation is improved, the vicious circle that traditional irrigation aggravates soil hardening or pollution leaching is effectively broken through, and a stable foundation is built for survival and growth of vegetation in the severe mine environment.

The invention provides a condensate water irrigation system based on renewable energy sources, belongs to the technical field of irrigation systems, and aims to solve the problem that an existing irrigation device cannot solve the problem that the irrigation cost is high at the same time from the aspects of water sources and energy consumption. The condensate irrigation system based on renewable energy comprises an air condensate machine, a water storage tank, a first valve, an irrigation water pump, a second valve, an irrigation network and a photovoltaic controller, wherein the air condensate machine is used for condensing water vapor in air into liquid water and collecting the liquid water; the water storage tank is communicated with the air water condenser through a first valve; the water storage tank is communicated with the water inlet end of the irrigation water pump through a second valve; the water outlet end of the irrigation water pump is communicated with the irrigation network, the photovoltaic controller comprises a solar photovoltaic panel array and a storage battery, the solar photovoltaic panel array is used for charging the storage battery, and the storage battery is used for supplying power to the air water condensing machine and the irrigation water pump. The problem of high irrigation cost can be solved from the aspects of water source and energy consumption, and healthy growth of crops is guaranteed.

Disclosed are a system, method and apparatus to process attributes of electrical power signals applied for the reduction in surface tension of irrigation water. In one particular implementation, a recommended schedule for irrigation of a crop field may be determined and / or modified based, at least in part, on measurements of the attributes of electrical power signals.

The embodiment of the invention discloses a water resource dynamic evolution simulation analysis method and system based on digital twinning, and the method comprises the steps: calling a target drainage basin water resource monitoring data set from a preset distributed database cluster after obtaining the authorization authentication of a digital twinning server; performing space-time correlation processing on the data set and the meteorological environment data of the target watershed to obtain a conjoint analysis data set with a unified space-time reference system; performing time-space coupled water resource cyclic evolution simulation on the conjoint analysis data set through a preset MIKESHE model to obtain a target drainage basin water resource dynamic evolution process simulation result; according to the result, a quantitative influence simulation result of the climate change on the agricultural irrigation water resource of the target watershed is generated, the result comprises an irrigation water demand change trend, water resource supply and demand balance and agricultural water efficiency fluctuation characteristics, and a scientific basis is provided for agricultural irrigation water resource management.

The invention relates to the technical field of agricultural management, in particular to a corn growth cycle multi-source data fusion irrigation demand prediction system, which comprises a multi-source data sensing and acquisition module, a data fusion and intelligent decision module and a hierarchical cooperative control execution module, according to the method, a decision engine with a multi-objective function as a core, wherein the multi-objective function comprises four sub-objectives of irrigation water consumption minimization, expected yield maximization, grain quality index optimization and irrigation system carbon emission minimization, and a Pareto optimal frontier scheme set is solved and generated through a genetic algorithm based on non-dominated sorting. According to the scheme, normal form transformation from single-target optimization to multi-target collaborative optimization is achieved, decision makers can comprehensively balance and optimize in multiple dimensions such as water saving, yield increasing, quality improving and emission reducing, and systematicness and global optimization capacity of irrigation decision making are remarkably improved.

The invention relates to the technical field of irrigation prediction, in particular to a soil moisture content-based irrigation water consumption prediction method. According to the method, the water consumption rate is calculated by synchronously obtaining the photosynthetic radiation intensity and the matrix water content in a sliding time window; determining a load index representing moisture extraction resistance based on a mean ratio of radiation to consumption rate, and constructing a fluctuation transmission index reflecting matrix hydraulic connectivity based on a ratio of variation coefficients of the radiation and the consumption rate; combining the two indexes to generate a hydraulic blocking risk coefficient for identifying recessive drought caused by capillary fracture; and finally, predicting the actual water demand according to the risk coefficient and the preset maximum irrigation amount. According to the method, physiological regulation of crops and physical water shortage of the substrate can be effectively distinguished, the judgment accuracy of the microcosmic hydraulic communication state of the substrate is remarkably improved, then irrigation water consumption prediction is more targeted and timeliness, and mistaken irrigation or leakage irrigation is avoided.

The invention provides a soil improvement method for a sugarcane seedling seedbed. The soil improvement method comprises the following steps that a small-particle-size water-retaining agent containing a water-absorbing component and a biodegradable natural fiber material is spread on the surface layer of soil, and a large-particle-size water-retaining agent containing a water-absorbing component and a biodegradable natural fiber material is spread in a root zone. The water-retaining agents with different particle sizes and mixed with biodegradable natural fibers are spread in a layered manner, so that fine regulation and control can be performed according to the water requirements of different depths of the seedbed. The small-particle-size water-retaining agent is distributed on the surface layer, can rapidly absorb rainfall or irrigation water, reduces surface water evaporation, effectively inhibits weed growth, and meanwhile is not prone to being washed away by rainwater due to the small particle size. The large-particle-size water-retaining agent is concentrated in the root zone, has higher water-retaining capacity, can continuously provide stable water for the root system, and avoids wilting of the root zone due to water shortage. The biodegradable natural fibers are mixed, so that the water-retaining agent is expanded to form a porous structure, and root respiration and healthy growth are promoted.

The invention relates to the technical field of mine water treatment and utilization, and discloses a mine water resource comprehensive utilization system and method based on multi-target coupling, and the system comprises a multi-source mine water collection module which collects mine water in different underground areas; the hierarchical storage and adjustment module is used for performing hierarchical storage and adjustment on the mine water; the target guiding purification module is used for carrying out targeted purification treatment on the adjusted mine water to generate standard industrial water to be used or irrigation water to be used; the multi-scene utilization module is used for conveying the industrial to-be-used water or the irrigation to-be-used water which reaches the standard to a corresponding water utilization scene and carrying out industrial or agricultural scene water supply utilization; the intelligent coupling regulation and control center module is used for establishing a dual-objective function for maximizing the water resource utilization rate and minimizing the system energy consumption according to the monitoring state data of all the modules and the initial system control instruction and constraint conditions, and performing iterative solution by adopting a multi-objective particle swarm optimization method to generate an optimal control instruction; the utilization rate of mine water resources is greatly increased.

The invention provides a saline-alkali soil crop multi-water-source irrigation control method and system, and belongs to the technical field of agriculture, and the method comprises the steps: determining an irrigation water salinity target threshold value and a target total irrigation amount according to soil salinity data and crop physiological parameters; determining a water distribution strategy based on the salinity concentration data, wherein the water distribution strategy at least comprises irrigation priorities and collocation of different types of water sources; based on the target irrigation total amount, the irrigation water salinity target threshold value and the water distribution strategy, the target water taking amount of each type of water source is determined; and generating an irrigation control instruction according to the target water intake amount. According to soil salinity, crop types, crop physiological parameters and salinity concentration of multiple water sources, the irrigation water salinity target threshold value and the irrigation water total amount are dynamically and accurately determined; and meanwhile, a priority water distribution strategy is formulated, so that flexible allocation of irrigation among multiple water sources and fine management of the salinity concentration of crop irrigation water can be realized, and soil salinization and crop salinity stress are effectively avoided.

The utility model relates to a channel water-saving gate device based on buoyancy self-adjustment, the channel water-saving gate device based on buoyancy self-adjustment comprises a gate groove, a gate and a buoyancy linkage structure, the buoyancy linkage structure comprises a fixing rod arranged on the backwater side of the gate, the fixing rod is rotatably connected with a plurality of levers, the top of the gate is provided with a connecting handle, and the connecting handle is connected with the gate. The first connecting end, close to the gate, of the lever movably penetrates through the connecting handle and then is connected with a first limiting block, and the second connecting end, away from the gate, of the lever is connected with a first floating ball through a connecting rod so that the first floating ball can drive the gate to ascend and descend along the gate groove along with ascending and descending of the water level of the backwater side of the gate. A plurality of second floating balls are connected to the bottom of the gate, and when the gate is completely closed, the second floating balls are higher than the first floating balls, so that when the water level of the upstream side of the gate rises to the second floating balls, the gate can be opened under the action of the second floating balls to drain water. The channel water-saving gate device not only can accurately control the irrigation water level, but also has the flood discharge capacity.

The utility model discloses a double-tank agricultural irrigation water filtering device with backwashing, which comprises a water inlet pipe, a water outlet pipe, a first filtering tank and a second filtering tank, filtering components are arranged in the first filtering tank and the second filtering tank, the water inlet pipe is communicated with the first filtering tank through a first flow guide pipe, and the water inlet pipe is communicated with the second filtering tank through a second flow guide pipe. A first waste discharge pipe communicated with the inner cavity of the first filtering tank is arranged on the outer side wall of the first filtering tank, a second waste discharge pipe communicated with the inner cavity of the second filtering tank is arranged on the outer side wall of the second filtering tank, the first filtering tank is communicated with the water outlet pipe through a third flow guide pipe, and the second filtering tank is communicated with the water outlet pipe through a fourth flow guide pipe; a first on-off control valve is arranged corresponding to the first flow guide pipe, a second on-off control valve is arranged corresponding to the second flow guide pipe, a third on-off control valve is arranged corresponding to the first waste discharge pipe, and a fourth on-off control valve is arranged corresponding to the second waste discharge pipe. According to the utility model, automatic filtration of irrigation water and backwashing operation of the filter assembly can be realized.

The utility model belongs to the technical field of vegetable irrigation, and particularly relates to a hidden vegetable irrigation mechanism which comprises an embedded shell, a plurality of through grooves are formed in the two sides of the embedded shell, irrigation pipeline sets are installed on the two sides of the embedded shell, a plurality of drip irrigation pipes are arranged on one sides of the irrigation pipeline sets, and the drip irrigation pipes are arranged on the other sides of the irrigation pipeline sets. One end of the irrigation pipeline set is connected with a connecting pipeline, one end of the drip irrigation pipe is provided with a valve, a plurality of connecting grooves are formed in the two sides of the irrigation pipeline set, inner cavities of the connecting grooves are detachably connected with sealing plugs, and the sealing plugs are detachably connected with cleaning rods; an irrigation pipeline and the like can be hidden and buried in the soil, redundant water is discharged in time when the irrigation water amount is large, vegetable rhizomes are prevented from being flushed out, the blockage condition of the irrigation pipeline buried in the soil can be monitored, the pipeline is cleaned and maintained in time, the pipeline buried in the soil continuously works, and the irrigation efficiency is improved. The service life is longer, and the maintenance efficiency is higher.

The invention discloses a water-saving irrigation and fertilization device for intelligent agricultural planting, and relates to the field of agricultural irrigation, the water-saving irrigation and fertilization device comprises a water storage tank, and also comprises a water spray pipe for spraying water in the water storage tank for irrigation; the water outlet cleaning mechanism is used for cleaning the outer wall of the water spraying pipe, and the water outlet cleaning mechanism is located on the outer wall of the water spraying pipe; according to the water-saving irrigation and fertilization device for intelligent agricultural planting, through the effect of a water outlet cleaning mechanism, when a water spraying pipe rotates, water spraying holes in the outer wall of the water spraying pipe make friction contact with a friction roller, the friction roller is driven to rotate according to the effect of friction force, and friction abrasive paper arranged on the outer wall of the friction roller increases the friction force between the friction abrasive paper and the water spraying holes; dust and impurities attached to the outer wall of the water spraying hole during water spraying can be efficiently removed through friction, the smoothness of the water spraying hole is improved, it is guaranteed that irrigation water can be evenly and stably sprayed out, and the irrigation quality is improved.

The utility model relates to the field of agricultural devices, in particular to an agricultural water conservancy water-saving device which comprises a base, an irrigation water storage assembly is fixed to one side of the top of the base, a rainwater storage assembly is fixed to the other side of the top of the base, and a water conveying assembly is fixed to the middle of the top of the base. The irrigation water storage assembly and the rainwater storage assembly are both connected with a water conveying assembly through pipelines, the water conveying assembly is further connected with a spraying assembly through a pipeline, and the spraying assembly is fixed to a height adjusting assembly. Natural rainwater can be effectively and reasonably utilized to be matched with irrigation water to be used for agricultural irrigation operation, the irrigation range can be conveniently adjusted, the water-saving effect is further improved, development of agricultural water conservancy is facilitated, and the system is suitable for popularization.

This invention discloses an agricultural water resource optimization method based on crop water requirement and multi-objective optimization. The method includes: S1 Constructing a multi-objective programming model that maximizes crop yield, irrigation water productivity, and minimizes planting water costs; using the Zimmerman method to transform the multi-objective programming model into a deterministic single-objective model; S2 Reading monitoring data collected in the current monitoring period and monitoring data from the previous monitoring period corresponding to periods not collected in the current monitoring period; the monitoring period includes a complete planting cycle for corn and wheat; S3 Inputting all monitoring data into the deterministic single-objective model and solving the single-objective model using Lingo programming to obtain the irrigation amount for corn and wheat at each growth stage within the current monitoring period; S4 Using the irrigation amount obtained in step S3 for the corresponding growth stage of corn and wheat as the guiding irrigation amount for the current growth stage of corn and wheat, based on their current growth stage.

The application relates to the technical field of agricultural irrigation water treatment, and discloses a flow regulating valve which comprises a valve seat, a valve shell, a valve core and an elastic diaphragm, the valve seat is provided with a left-right through flow hole, a cylindrical valve core is sealingly connected to the left side of the valve seat corresponding to the position of the flow hole, a plurality of openings are arranged on the valve core wall in a circumferential direction, an elastic diaphragm is sealingly wrapped on the outer side of the valve core corresponding to the positions of the openings, a water passing inner cavity which is left-right through and sealingly communicated with the flow hole is formed between the elastic diaphragm and the valve core, the valve shell is sleeved on the outer side of the valve core and sealingly connected to the valve seat at the left end, and an adjusting outer cavity which is closed at the left end and opened at the right end is formed between the valve shell, the valve seat, the valve core and the elastic diaphragm. The application has a reasonable structure, the water passing section area of the water passing inner cavity can be adjusted according to the water head, so that the flow rate is relatively stable, the whole device is controlled by hydraulic self-driving, no manual cost or electric energy consumption is needed during operation, and the operation cost is low.

The utility model discloses an irrigation water pretreatment pool for lemon planting, and relates to the technical field of lemon planting. The irrigation water pretreatment pool for lemon planting comprises a pretreatment pool body, a scraping part and a driving structure, a partition plate is fixedly installed in the pretreatment pool body, a filter screen is arranged on the pretreatment pool body, material boxes are arranged on the front side and the rear side of the pretreatment pool body, discharging openings are formed in the front side and the rear side of the pretreatment pool body, and the scraping part is arranged on the partition plate and the filter screen; the scraping piece is composed of a U-shaped plate and a scraping plate, and the driving structure is arranged on the pretreatment pool and the U-shaped plate. According to the irrigation water pretreatment pool for lemon planting, on one hand, sand and stones can be automatically filtered and intercepted, the sand and stones can be conveniently and automatically concentrated, and the blocking condition is reduced, on the other hand, a scraping piece can be driven to move front and back, the sand and stones on a filter screen can be conveniently and automatically scraped into a material box to be collected, and the automatic cleaning effect is achieved; the conditions that the filter screen is blocked and the filtering effect is lost due to excessive gravel are avoided.

The application discloses an agricultural irrigation water hose and a preparation method thereof. The agricultural irrigation water hose comprises, from top to bottom, a braided layer, a hot melt adhesive layer and an inner film layer, wherein the braided layer is made of polypropylene yarn. The irrigation water hose has the following advantages: 1) the adhesion strength between the inner film and the outer polypropylene yarn braided layer is greater than or equal to 15 n at a width of 50 mm after the irrigation water hose is normally rolled and placed for 24 hours; and 2) after being placed in an outdoor high-temperature environment of 75 DEG C for 30 days, the inner film and the outer polypropylene yarn braided layer of the water hose do not produce delamination, and the inner film does not become hard at a low temperature of -25 DEG C.

This invention provides a method and apparatus for early identification of cotton fields based on differences in crop planting and management, relating to the field of smart agriculture technology. The method involves acquiring surface reflectance data of a target area during historical years' mulching periods to determine a surface reflectance image sequence. Based on the image sequence, a mulching difference index and an average texture feature index are determined to characterize the difference in mulched area ratio between cotton and non-cotton fields. A classifier is trained using the mulching difference index, the average texture feature index, and the location information of cotton and non-cotton fields from historical years to obtain an early cotton field identification model. The surface reflectance data of the target area during the current year's mulching period is input into the model to obtain the early cotton field identification results. This invention enables early mapping and meets the early management decision-making needs of cotton in areas such as irrigation water allocation and agricultural insurance, without waiting for cotton canopy development or canopy closure.

This invention discloses a controlled drainage ecological regulation method for synergistic irrigation and drainage to reduce salinity and alkalinity, belonging to the field of soil remediation technology. The method includes: a soaking and dissolving stage, where, with the drainage outlet closed, low-flow irrigation is performed at the farthest point from the drainage ditch, allowing a large amount of irrigation water to enter the small pores of the soil profile and soak and dissolve salts; a diffusion and dispersion stage, where the drainage outlet is raised, and with the outlet height lower than the field surface, large-flow irrigation is performed evenly, filling all pores of the soil profile with irrigation water and enhancing the diffusion and dispersion of salts; a convection desalination stage, where the drainage outlet is opened, and with the outlet depth level with the drainage ditch depth, saline water is evenly discharged from the soil; and a water-saving and emission-reduction stage, where the drainage outlet depth is lower than the crop root zone, breaking the connectivity of small pores and preventing soil salts from moving upwards during crop growth. This synergistic irrigation and drainage achieves the three major goals of salt control, water conservation, and emission reduction.

The application discloses an agricultural water quality and water quantity dual risk and cascade transmission evaluation method, belongs to the technical field of water resource management, and aims at solving the problem that traditional methods only stay in water quantity depletion caused water resource pressure accounting and ignore the risk caused by substandard water quality; the application comprises the following steps: based on a farmland soil nitrogen budget and hydrodynamics coupling model, quantifying the pollution emission list of subdivided sources in the growth process of specific crops, simulating agricultural pollution dilution water consumption; using a crop water requirement model to calculate the irrigation water consumption of specific crops in the whole growth period; using a source and sink corrected physical flow trade model to analyze the virtual water transfer path hidden in each agricultural product trade link; integrating the production end and the consumption end results to realize high-precision grid agricultural water resource supply and demand imbalance risk evaluation and cascade effect analysis; and the cascade transmission effect of the application in evaluating the water resource risk provides strong support for reasonable allocation of agricultural water resources and improvement of nitrogen fertilizer utilization efficiency.

The invention relates to the field of fertilizer water returning, and discloses an organic fertilizer water real-time nitrogen adjustment and salt control multi-layer drip irrigation system and method, the layered drip irrigation system comprises a fertilizer preparation module, an irrigation distribution module, a data monitoring module, an irrigation water module and a control module; the layered drip irrigation method comprises the following steps: irrigating the earth surface in a seedling stage; fertilizer preparation; performing dilution; crop growth period bottom layer drip irrigation; diluting and adjusting; the nutrient measuring and calculating method comprises the following steps: determining the demand quantity of crop nutrients nitrogen, phosphorus and potassium; the crop nutrient nitrogen, phosphorus and potassium demands are met; generating a dynamic fertilizer preparation scheme; calculating the supplementary irrigation amount and the irrigation quota; the total irrigation amount is generated. According to the method, the total nitrogen content change of the organic fertilizer water and the content change of available nitrogen in the soil are fully considered during stage-by-stage fertilization calculation, the soil salinity is adopted as a reference index, the irrigation water consumption of the organic fertilizer water is measured, and the soil salinization problem of organic fertilizer water recycling in the prior art is solved.

The utility model relates to a greening irrigation water-saving control device which enables a greening irrigation system to have the capabilities of controlling irrigation according to soil humidity and automatically closing in rainy days. The device is provided with soil humidity and rainfall data collectors and a data processing and controlling device, and after one or more soil humidity and rainfall data collectors collect soil humidity and rainfall data of a part where the soil humidity and rainfall data collectors are located, the soil humidity and rainfall data are sent to the data processing and controlling device through data communication modules in the soil humidity and rainfall data collectors; and the data processing and controlling device judges and controls an electromagnetic valve of a corresponding water supply pipe section of the greening irrigation system to be opened or closed according to the received data so as to realize closing of the greening irrigation system in rainy days and water-saving control of irrigation according to soil humidity. The water-saving device has the outstanding advantages of obvious water-saving effect, flexibility in arrangement, convenience in installation and simplicity in operation and maintenance.

The utility model relates to the technical field of vegetable grafting, in particular to a vegetable grafted seedling grafting healing chamber which comprises a cabinet body, the front side of the cabinet body is rotatably connected with a cabinet door through a hinge, and the top of the cabinet body is provided with a water tank. When grafted seedlings need to be sprayed, the pressurizer in the water tank works, irrigation water is guided out through the water guide pipe, is shunted to all the water distribution pipes and then is sprayed out through the atomization nozzles, the motor drives the protruding block to rotate anticlockwise, the protruding portion of the protruding block extrudes the transverse plate once every time the protruding block rotates by one circle, and under the action of extrusion force, the transverse plate is sprayed out through the atomization nozzles. The transverse plate drives the toothed plate to slide downwards on the outer side of the square rod, the spring is compressed, and when the protruding part slides through the transverse plate, the toothed plate is driven to reset under the action of the spring, so that up-down reciprocating motion of the toothed plate is achieved, the toothed plate drives the gear to swing in a reciprocating mode, a water distribution pipe and an atomization spray head are driven to swing in a reciprocating mode, and the effective spraying range is greatly enlarged; the spraying efficiency is improved, and the device is more suitable for healing of batch grafted seedlings.

The utility model discloses an agricultural machinery irrigation device, including water tank, irrigation filter mechanism, water supply dredge mechanism and dredge adjustment mechanism, irrigation filter mechanism includes filter tank, filter screen, water supply pipe, filter chamber and water supply pump, water supply dredge mechanism includes dredge pipe, threaded frame, screw, inner rotating stand and spiral dredge piece, and the dredge adjustment mechanism includes the filter tank, filter screen, water supply pipe, filter chamber and water supply pump. The dredging adjusting mechanism comprises a spring rotating rod, a fixing block, a rotating block, an outer rotating ring, an extending frame, a rotating ring and an external connecting pipe, the irrigation filtering mechanism can effectively filter a water source and remove impurities such as silt and particles in water, cleanliness of irrigation water is ensured, the risk that the impurities enter an irrigation system to cause pipeline blockage is reduced, the irrigation efficiency is improved, and the irrigation cost is reduced. The water supply dredging mechanism can automatically dredge blockages in the pipeline, irrigation interruption caused by pipeline blockage is avoided, the dredging process is more efficient through the structural design, and frequent manual intervention is not needed.