1103 results about "Water saving irrigation" patented technology

The invention discloses a buried auto-telescoping integrated spray irrigation unit and belongs to the field of water-saving irrigation. The spray irrigation unit is connected with a water pipeline and comprises a sleeve, a primary telescopic pipe and a second telescopic pipe, which are sequentially nested from outside to inside. The spray irrigation unit further comprises a lifting sprayer, a bypass branch pipe and a spring. A vertical pipe, a stand pipe and a lifting sprayer in a traditional spray irrigation system are integrated to the integrated spray irrigation unit, the devices need not be installed before spray irrigation, detachment of the devices is also avoided after spray irrigation, and accordingly field labor intensity is lowered greatly. In addition, the buried auto-telescoping integrated spray irrigation unit is friendly to farming during non-irrigation period, is labor-saving and material-saving in irrigation, and meets the requirements for economy, reasonability, durability, and convenience in popularization and application.

The invention provides an intelligent water-saving fertigation system and method. The intelligent water-saving fertigation system comprises a management control unit, a core processing unit, a soil environment detecting unit, a water detecting unit, a fertilization control unit and an irrigation control unit, wherein the management control unit is used for receiving a remote / local instruction of a manager and forwarding the instruction to the core processing unit; the core processing unit is used for sending a state parameter collecting instruction to the environment detecting unit and the water detecting unit; the soil environment detecting unit is used for obtaining the soil environment information of an irrigation field; the water detecting unit is used for obtaining the water quality information and water pressure information of water used for fertigation; the fertilization control unit is used for controlling the type and the using amount of fertilizer dissolved in water used for irrigation; and the irrigation control unit is used for filtering the water used for fertigation and adjusting the irrigation amount and the water pressure of an irrigation pipeline. The intelligent water-saving fertigation system can achieve the functions of energy and water conservation, remote control, unattended operation, automatic alarming, fertigation instruction, geographical information query and browsing, and the like.

The invention pertains to a key device for water-saving irrigation, which is a wall-attached fluidic nozzle that realizes variable spraying; the nozzle comprises a static plate, a moving plate, a spraying body, a spraying tube, a rotating seal mechanism, a knighthead, a spacing ring, a reversing mechanism and a fluidic element body and is characterized in that the static plate and the moving plate are added to a nozzle spin; the moving plate is pressed to match a hollow shaft, and rotates along with the nozzle. The fluidic element body comprises a reverse air supply nozzle, a signal water receiving nozzle, an outlet cover plate, a signal water intake nozzle and a honeycomb duct; signal water in a signal water receiving nozzle leads one side of main jet-flow to form a low-pressure spiral area at intervals; by opening and closing an air supply receiving nozzle, the other side of the main jet-flow is led to switch between high pressure and low pressure so as to form a differential pressure between the right and the left ends of the main jet-flow, thus realizing the wall attachment of water flow and finishing direct spraying, stepping and reverse running of the nozzle. The static plate and the moving plate at the position of the nozzle spin move relatively to change the area of stopflow at an inlet and regulate the flow and the pressure of the inlet so as to change the spraying range of nozzle and realize variable spraying.

The invention pertains to a key equipment for water-saving irrigation, which is a wall-attached fluidic sprinkler, comprising a sprinkler body, a thrust jet, a rotary sealing mechanism, a spacing ring, a reversing mechanism and a fluidic element body. The sprinkler is characterized in that the fluidic element consists of a reverse gulp nozzle, a signal water joint nozzle, an outlet cover, a signal water entry nozzle and a draft tube; on the outer wall of the fluidic element body, the signal water joint nozzle and the reverse gulp nozzle positioned below signal water joint nozzle are arranged at one side; the signal water entry nozzle is arranged at the other side. The signal water joint nozzle and signal water entry nozzle are connected by the draft tube; the outlet cover is arranged at the upper end of the fluidic element body. The signal water inside the signal water joint nozzle causes one side of the main fluid to form a low pressure vortex region discontinuously. The opening and closing of the gulp nozzle causes another side of the main fluid to switch between high pressure and low pressure, thus forming pressure difference between two ends of the main fluid to realize water attaching and complete direct jetting of the nozzle, stepping and reverse running of the sprinkler.

The invention discloses a no-pollution standardized high-yield method for cultivating guava, which comprises the steps of field selection, orchard establishment, pruning of guava plants, solid manure management, water management, pest control, and flower and fruit management, wherein in the plant pruning, the plant is pruned into a short-trunk multi-bough round head shape so as to culture a stunting crown; in the solid manure management, basic manure and supplementary fertilizer are combined, wherein the basic manure is applied by combining deep tillage after harvesting in spring, the supplementary organic fertilizer is applied in time after fruit setting, and trace elements are supplemented by spraying fertilizer on the foliage; in the water management, weeds are covered within the range of crown to preserve moisture, and the water-saving irrigation system combining spray irrigation and trickle irrigation is utilized; in the pest control, the comprehensive agricultural measures are utilized to cooperate with spraying of high-efficiency low-toxicity low-residual pesticide, orchard management in winter and spring is actively developed, and physical pesticide control technology is popularized; and in the flower and fruit management, flower thinning and fruit thinning are carried out according to the tree vigor and nutritional status, and the fruits in the whole orchard are filled in bags. The invention has the characteristics of low pesticide residue, high fruit quality and low environmental pollution.

The invention relates to the fields of image processing technology, the sensor technology and the water-saving irrigation, disclosing a crop irrigation system combined with computer vision and multi-sensor, wherein the technology adopted by the invention is non-destructive crop water-lacking detection combined with computer vision and multi-sensor; the system comprises the steps of obtaining and dividing a crop image, and extracting characteristic parameters; computing the characteristic parameters according to a growth data model; and then combining sensor data of a soil water potential sensor, a temperature and humidity sensor and the like, finally, finishing judgment by a genetic neural network, and controlling a single chip to drive an electromagnetic valve according to a judgment result to finish crop irrigation. The system can obtain water requirement information of crops immediately, achieve accurate irrigation immediately, and improve the utilization rate of water resource. The system has good practicability and can be applied to crop plantation areas such as a greenhouse, a farmland, a nursery garden and the like.

The invention belongs to the technical field of intelligent management of water-saving irrigation and relates to an intelligent drop irrigation cloud service management system based on a microservice-oriented architecture. The system adopts an architecture with a layer structure and comprises a user layer, an application layer, a gateway layer, a microservice layer, a data layer, an internet of things layer and a resource layer. In the system, a business is split into small-granularity microservice, so that the problems of high coupling degree, high maintenance cost and low reliability of a single architecture are solved; due to the combination of distributed deployment, the request processing capacity is improved, the flexibility is stronger, and the performance advantages is obvious; andthe functional combination is flexibly regulated, according to the engineering scale, crop variety and investment level as well as the practical condition, so that it is convenient to realize rapid upgrading, the problems of long development period, high investment and maintaining and upgrading difficulty are solved, and the universality and adaptability are improved. Microservice covers the links such as operation, maintenance, irrigation, fertilization, pesticide application, agricultural machinery and agricultural technologies of a drop irrigation system, the operation management level ofthe drop irrigation system is comprehensively promoted, the informatization advantage of a platform is exerted, and the water saving, beneficiating and quality improving levels are improved.

The invention relates to a method and a device for intelligently controlling precision irrigation and fertilization. The method and the device have the advantages that intelligent control is applied to the field of water-saving irrigation by the aid of the method and the device, so that the problem of high labor and material consumption required by manual operation on water-saving irrigation systems can be solved; fertilizers are applied to crops by the aid of an intelligent control system according to soil types, species of the crops and growing periods of the crops, and accordingly the method and the device are favorable for improving the fertilization precision and saving fertilizers; the fertilizers flow to locations near root systems of the crops along with water, accordingly, the method and the device are favorable for preventing deep-layer loss of the fertilizers, the fertilizer efficiency can be improved, the yield of the crops can be increased, underground water can be prevented from being polluted by the fertilizers and chemical agents, and the problem of agricultural non-point source pollution can be solved.

The invention discloses a wireless sensor network based water-saving litchi orchard irrigation control system and method. The system comprises multiple sensor nodes, multiple electromagnetic valve control nodes, a gateway module, a man-machine interaction module, a network server module, a site module and a mobile terminal module; each sensor node is connected with one electromagnetic valve control node; the gateway module is connected with the man-machine interaction module through a serial port and connected with the network server module through a mobile communication network, namely the internet; the network server module is connected with a mobile-phone client module through the internet; the network server module is connected with the site module through a database. Data transmission is performed through the wireless sensor network, GPRS (general packet radio service) and the internet, real-time performance and reliability in transmission are guaranteed, environment of litchi orchards is monitored in real time, intelligent level in irrigation is improved, and loss due to the fact that managers do not notice real-time growth of litchi in time to take correct measures is avoided.

The invention relates to a saline-alkali soil irrigation and drainage ecological improvement method, comprising two parts, namely a composite gridded underground drainage brine discharging system and a water-saving irrigation washing system. The composite gridded underground drainage brine discharging system is formed by the way that a gridded drainage brine discharging network composed of a water absorption tube (branch drain pipe) and a blind drain is arranged below a saline-alkali soil layer, and salty underground water and washing influent seepage are discharged outside an improved region by virtue of two paths, namely the blind drain, the water absorption tube (the bran drain pipe), a collector pipe (main drain pipe) and the water absorption tube as well as the collector pipe; and the water-saving irrigation washing system is in charge of washing salinity in soil by adopting one or more than two measures of partition irrigation, estuarine rotation irrigation and intermittent irrigation. By adopting the method provided by the invention, the saline-alkali soil can be uniformly and efficiently improved, water resource can be saved, improvement time can be reduced, and better social, ecological and economic benefits can be achieved.

The invention discloses a saline-alkali soil improving method by engineering-chemistry-biology-desalination and water conservation-information technology. The saline-alkali soil improving method includes steps of S1, lowering salt content in the saline-alkali soil to be treated gradually by engineering measures and isolating and discharging soluble salt in the soil; S2, reasonably utilizing water resource of the saline-alkali soil to be treated by brackish water desalination technology; S3, reasonably irrigating the saline-alkali soil to be treated by water-saving irrigation technology; S4, online detecting the saline-alkali soil to be treated by information technology; S5, improving chemical components of the saline-alkali soil to be treated by chemical measures; S6, finally improving the saline-alkali soil to be treated by biotechnology measures. The saline-alkali soil improving method provides a feasible, economic and efficient scheme for improving the saline-alkali soil in coastal regions, improvement time is short, effect is good and no backflow is caused after improvement.

The invention discloses remote automatic control method and system of a water-saving irrigation system. The method comprises the following steps of utilizing a GSM (Global System for Mobile Communication) / GPRS (General Packet Radio Service) / CDMA (Code Division Multiple Access) wireless communication network to transfer a command of a control center to an electromagnetic valve in a remote field, and remotely controlling opening and closing of the electromagnetic valve to enable the irrigation system to automatically carry out irrigation, thereby reaching an unattended state; and feeding back opening and closing signals of the electromagnetic valve in the remote field to the control center through the GSM / GPRS / CDMA wireless communication network so that an operator of the control center can know whether the electromagnetic valve in the remote field receives the command signal. The invention has the advantages of high control accuracy, high control hit rate, rapid sending command response, high automation degree and the like. The operator can preset an irrigation plan of a whole irrigation period, and the system can automatically carry out irrigation according to the irrigation plan and can reach the unattended state.

The invention relates to a valve controller based on ZigBee communication technique and a control method, belonging to the water saving irrigation automatic control system, wherein the valve controller is composed of a adjustable power radio frequency and central control module, a valve control module, a water pressure acquisition feedback module, a project installment debugging module and a power supply unit, the power supply unit has three power supply paths while a 3.3V power supply is normally opened, a 5.5V power supply and a 500mA large current power supply controlling the switch of an electromagnetic valve can be turned off, the control center and the valve control nodes form a ZigBee net communication, the radio frequency is adjustable according to distance. The invention uses a working mode of integral awake and integral dormancy for the valve controller to switch the electromagnetic valve and feedback information. The invention has ultra low power consumption, can realize ZigBee communication after using a battery, and has high reliability, high safety, simple installment, simple debugging and intelligent water quantity measurement. The invention can give full play to the advantages of mulch drip irrigation technique and is beneficial for engineering realization.

The invention provides a best water-saving irrigation method by wireless soil moisture monitoring. In the invention, a central control unit is arranged, and a wireless monitoring terminal and a wireless execution terminal are arranged in an irrigation field to perform network communication with the central control unit. The wireless monitoring terminal is provided with a soil moisture sensor and a soil nutrition sensor, wherein the sensors transmit data of current soil humidity and nutrition to the central control unit; the central control unit transmits a water-supplying and nutrition-adding command to the wireless execution terminal according to the current soil condition; and the wireless execution terminal determines the water supply amount and supplies water according to the command. The whole process is performed automatically, so the method saves mass labor force, especially saving mass water resources.

The invention discloses a cloud-based water-saving irrigation automatic control and information management system and relates to the field of agricultural irrigation, in particular to a cloud-based water-saving irrigation automatic control and information management system which can automatically diverting water for irrigation by monitoring water quantity, climates and soil conditions.The management system is characterized in that the irrigation system conducts data exchange and calculation through a remote database and a remote computer by monitoring the soil conditions in real time, and irrigation is conducted in time according to the growing demands of crops.The management system can be widely applied to waterline building projects, agricultural automation irrigation projects, and water conservancy automation monitoring and controlling projects in agricultural efficient water-saving irrigation.The system is high in automation and information management degree, compared with a traditional offline management mode, the system has the advantages that at least one half or above number of system operation managers (such as charging people, line patrol people and equipment maintenance people for later-period operation and maintenance) can be reduced, and the labor cost for later-period operation and maintenance can be greatly saved.

The invention relates to a large-scale water-saving irrigation network with solar photovoltaic driving and GPRS wireless communication monitoring, which comprises a pre-stage water taking system and a basic irrigation unit. The pre-stage water taking system utilizes the electricity generated by a solar cell to pump water from a water source through a main water pump controlled by a wireless online pre-stage measuring and controlling module, and the water is distributed to local water reservoirs through pipelines by a main dividing valve; and the basic irrigation unit also utilizes the electricity generated by the solar cell, drives unit water pumps to pump water from the local water reservoirs through wireless online unit measuring and controlling modules and carries out drip irrigation or sprinkler irrigation through a dividing valve and local pipelines. A computer administration center carries out real-time monitoring on soil moisture, water levels in the water reservoirs and irrigation amount of an irrigation unit block through a wireless network to realize all-weather and full-automatic intelligent management of the irrigation network. The invention effectively improves the feasibility of large-scale water-saving irrigation in water-deficient regions without electricity, saves water by over 80 percent compared with the traditional irrigation mode, and saves farmland occupied by the traditional irrigation channel by about 3-5 percent.

The invention discloses a rainwater collection and water-saving irrigation system used for an upland sloping field. The system comprises a rainwater collection pond or weir, a high-position water storage reservoir, a plurality of low-position water storage reservoirs, a water pump and a water conveying pipe, wherein the rainwater collection pond or weir is arranged on the middle part or lower part of a valley; the high-position water storage reservoir is arranged on the upper part of a hill body with maximum height in each hill body close to the rainwater collection pond or weir; the plurality of low-position water storage reservoirs are arranged on each hill body at the periphery of the high-position water storage reservoir respectively and are lower than the high-position water storage reservoir; the water pump is arranged beside the rainwater collection pond or weir; a water inlet of the water pump is connected with the rainwater collection pond or weir, and a water outlet of the water pump is connected with the high-position water storage reservoir; and the water conveying pipe is laid between the high-position water storage reservoir and each low-position water storage reservoir. By using the rainwater collection and water-saving irrigation system, surface runoff water produced by rainwater is accumulated in the rainwater collection pond or weir, water in the rainwater collection pond or weir is lifted to the high-position water storage reservoir by the water pump, water of the high-position water storage reservoir is conveyed to each low-position water storage reservoir through the water conveying pipe respectively, and water accumulated in each low-position water storage reservoir is used for irrigation when the irrigation is needed.

The invention discloses an agriculture water saving irrigation system based on wireless sensor network, composed of wireless sensor node, gateway, management center and irrigation device, also discloses an agriculture water saving irrigation system based on wireless sensor network, using wireless sensor node and gateway, the moisture state of plant is monitored at real time. The monitoring data is processed by the computer of the management center and a rational and effective water saving irrigation project is arranged based on different features of plant. Due to the expansibility of the said device, the said system is comprehensively utilized with the other information device and is able to provide informative, complex and substantial service.

The present invention belongs to a water-saving irrigation key equipment, and it relates to a full-fluidic large-range microsprayer with full-new structure. The key portion fluidic element of said microsprayer is formed from water-feeding bell mouth, nozzle, air-supplementing hole, action zone and cover plate which are connected together. Besides, said invention also provides the concrete working principle of said microsprayer.

The invention discloses a construction method of building anti-permeability channels using soil curing agent. The method comprises the following steps: blending soil, a soil curing agent, water and fiber to form a curing soil mixing material; and dividing the curing soil mixing material into dry and solid curing soil and plastic curing soil by the water content of the curing soil mixing material, compacting the dry and solid curing soil with tamp equipment to form an intensive strengthened soil anti-permeability layer, and as for the plastic curing soil, adopting cement mortar spray gun technology to muddy spray curing soil to channel base to form a strengthened soil anti-permeability layer, further laying cement mortar on the surface of the strengthened soil anti-permeability layer to form a protection layer, so that frost heaving and destruction of anti-permeability channels in northern cold area can be effectively avoided. The method can solve the problem in the prior construction method of building anti-permeability channels using soil curing agent, increase construction speed of building anti-permeability channels using the soil curing agent, reduce the construction cost, and prolong the service life of the channels. The invention is of great significance for the development of water-saving irrigation and establishment of conservation-oriented society.

Disclosed is a polyvinyl chloride (PVC) drip irrigation belt, which comprises the following components: PVC resin 100 parts by weight, plasticizer 20 to 40 parts by weight, lubricant 0.5 to 2 parts by weight, impact modifier 2 to 6 parts by weight, processing aid 0.5 to 3 parts by weight, heat stabilizer 1 to 2.5 parts by weight, coupling agent 0.1 to 0.8 parts by weight and calcium carbonate 5 to 20 parts by weight. The invention is mainly used as various irrigators used indoor and outdoor, in particularly suitable for water-saving irrigation in field agriculture.

The invention relates to the image processing technology and the water-saving irrigation field and discloses a crop irrigation method based on the computer vision. The crop irrigation method adopts the technology of nondestructive crop water lack detection based on the computer vision, in addition, a crop growth data model is combined, finally, the automatic judgment is made, and an electromagnetic valve is controlled for completing the crop irrigation. According to a system, the steps such as crop image obtaining, color space conversion, image dividing and characteristic parameter extractionare firstly carried out, then, the characteristic parameter calculation is carried out through being combined with the crop growth data model, the judgment is completed through a genetic neural network, and finally, a single chip microcomputer is controlled to drive the electromagnetic valve for completing the crop irrigation according to the judgment results. The system provided by the inventioncan obtain the water demanding information of crops in time and can realize the in-time and accurate irrigation, and the water resource utilization rate is perfectly improved. The system has good practicability and can be applied to crop planting regions such as greenhouses, farmlands and nursery gardens.

Belonging to the technical field of high efficiency water-saving irrigation, the invention relates to a large-scale farmland wireless Internet of things intelligent drip irrigation system and method.The large-scale farmland wireless Internet of things intelligent drip irrigation system comprises a remote control center, a number of measurement and control modules, a field drip irrigation system and a terminal. The system and method provided by the invention realize all wireless control transmission, put forward consumption reduction and dormancy measures directed at the drip irrigation fieldmeasurement and control modules, at the same time the measurement and control modules are labeled with special information, and positioning of the measurement and control modules, reading, setting andother management operations can be completed through portable terminal reading. The system and method provided by the invention solving the problems of high power consumption, difficult layout and complex management in large-scale farmland intelligent drip irrigation systems, also simultaneously lower the building investment of large-scale farmland intelligent drip irrigation systems, and improvethe management efficiency.

The invention relates to a method for preparing a plastic pipe fitting from a PET bottle reclaimed material, which comprises the following steps: taking 63-74 parts by weight of the PET bottle reclaimed material and 22-32 parts by weight of m-LLDPE as raw materials, adding 2-4 parts by weight of compatilizer, 0.6-1.2 parts by weight of lanthanum oxide and 0.5-1.0 part by weight of antioxidant 1010, pulverizing, mixing at high speed, extruding and pelleting by a twin screw, and injection molding to process the pipe fitting. The compatilizer is prepared by mixing an ethylene-acrylic acid copolymer and an ethylene-octylene copolymer in proportion by weight of 1:0.5-0.9. Compared with the pipe fittings manufactured from unmodified PET bottle reclaimed materials, the pipe fitting prepared by the method has the advantages that the notch impact strength is improved by 45%-55%, the compression resilience rate is improved by 22%-26%, and the rate of finished products of injection pipe fittings is improved by 18-23%; and the pipe fitting has the characteristics of high anti-impact strength, good pressure resistance, lustrous surface, low cost and the like, and is suitable for drainage and sewage pipe fittings in municipal works and water-saving irrigation pipe fittings in agriculture.

The invention relates to a large-area multi-field-piece automatic water-saving irrigation three-level control system and a use method thereof. The three-level control system comprises a remote monitoring platform, at least one monitoring station and a plurality of monitoring terminals; the remote monitoring platform and the monitoring stations conduct data communication in a GPRS mode, and the monitoring stations and the monitoring terminals conduct data communication through a ZigBee network. Temperature and humidity data of field pieces is collected through temperature and humidity sensors of the monitoring terminals and compared with temperature and humidity threshold values pre-stored in ZigBee modules of the monitoring terminals; when conditions are met, an irrigation request is sent to the monitoring stations, and meanwhile management personnel can modify the temperature and humidity threshold values through the remote monitoring platform and issue the modified temperature and humidity threshold values to the monitoring stations. The three-level control system can achieve control over automatic water-saving irrigation of multiple field pieces in a large area, manpower cost is saved, water resources are saved, manual intervention can be carried out, and the purpose of reasonable water-saving irrigation is achieved.

The invention discloses a water-saving irrigation method and system based on a fuzzy logic control theory. The water-saving irrigation method comprises the following steps of 1, acquiring first growthinformation data of crops in a current stage; comparing the first growth information data with a fuzzy control rule table to inquire the water amount required by the crops in the current stage; judging whether or not the required water amount is greater than the minimum value of the soil water content in the current stage; if yes, calculating the water irrigation amount required by the crops andsending an irrigation instruction; waking up terminal nodes in a dormant state to irrigate the crops; judging whether or not the soil humidity in the current area reaches the water irrigation amount in real time; if yes, driving the corresponding terminal nodes to stop irrigation and switching the terminal nodes into the dormant state, or if not, enabling the corresponding terminal nodes to continue irrigation. According to the system, quantitative irrigation is carried out according to the actual demands of the crops, the phenomenon of water resource waste is effectively avoided, and the utilization rate of irrigation water is increased.

The invention discloses a method for primarily transforming a saline and alkaline land by adopting an engineering-chemical-desalination water saving technology. The method comprises the following steps: S1, reducing salt content of soil in the saline and alkaline land to be processed step by step by engineering measures and isolating and discharging soluble salt in the soil; S2, reasonably utilizing water sources of the saline and alkaline land to be processed by utilizing a brackish water desalination technology; S3, reasonably irrigating the saline and alkaline land to be processed by utilizing a water-saving irrigation technology; S4, improving chemical ingredients of the saline and alkaline land to be processed by utilizing chemical measures. The method can carry out primary improving work on the saline and alkaline land in coastal areas and has short time and good effects.

The invention discloses a water-saving irrigation method applicable to close-planting crop. The water-saving irrigation method is particularly applicable to wheat and hybrid millet and comprises the procedures that A, soil preparation, sowing and fertilization are carried out; B, a separate-field limited irrigation method is adopted to carry out irrigation when the crop is in the jointing-booting stage, and two adjacent fields are respectively irrigated with the normal water quantity and one third to two thirds of the normal water quantity; and the normal water quantity is 40-100 mm; and C, the separate-field limited irrigation method is adopted to carry out irrigation when the crop is in the filling stage, and the two adjacent fields are respectively irrigated with one third to two thirds of the normal water quantity and the normal water quantity, namely the field which is irrigated with the normal water quantity last time is irrigated with one third to two thirds of the normal water quantity this time, and the field which is irrigated with one third to two thirds of the normal water quantity last time is irrigated with the normal water quantity this time. According to the water-saving irrigation method applicable to close-planting crop, the water consumption used for irrigation is greatly reduced, and a certain yield-increasing effect is also played on the crop.

The invention provides a water saving and control intelligent management method for regulating and controlling paddy field non-point source pollution. The method includes the following steps: a step 1, acquiring essential data of weather, water level, and soil moisture content of each paddy field area through an information acquisition device arranged in a paddy field monitoring area, and sending the acquired data to a wireless measurement and control module; a step 2, receiving the data through the wireless measurement and control module, and sending the data to a system analysis center; allowing the system analysis center to automatically operate a preset program to generate an open and closure control signal of an irrigation valve and a drainage gate according to the preset paddy field irrigation / drainage analysis program; and a step 3, allowing an intelligent controller to control open and closure of the irrigation valve and the drainage gate according to the signal received from the system analysis center, and sending the relevant essential data to a mobile phone monitoring terminal to perform manual control. The method can achieve regulation and control of output of paddy field non-point source pollution, can minimize non-point source nitrogen and phosphorus loss, and can achieve digital accurate control of water level depth of paddy field water-saving irrigation.

The invention discloses a method for forecasting the water saving irrigation of a lawn. The method comprises the following steps of: dividing rotational irrigation regions of the lawn, measuring the soil moisture content at several points in the same region and taking an average value as an actually-measured soil moisture content; determining the soil type and the lawn type, calling the calibration coefficient of the soil moisture content and the water demand coefficient for the growing of the lawn from a database; calculating whether the lawn is needed to irrigate according to the actually-measured soil moisture content and a lawn water saving irrigation decision forecasting model, if needed, determining the amount of irrigation water and the irrigation time. The method for forecasting the water saving irrigation of the lawn and the system thereof can assist lawn maintenance skilled workers and administrators to draw up a proper irrigation system to a large extent, the research result of the lawn irrigation is converted into the production practice of the lawn irrigation, thereby improving the quality of law maintenance, achieving the purpose of water saving irrigation and improving the utilization rate of water resources.