101 results about "Subirrigation" patented technology

The present invention provides an apparatus and method of cultivating a plant using a subirrigating method. The apparatus includes a culture medium cell constructed in such a manner that artificial culture medium is packed in a packing material having excellent ventilation and moisture absorptivity to be shaped in a predetermined form, a planting pot which contains the culture medium cell and has holes through which a sufficient amount of nutritive solution and air pass, a cooling / heating device set in the lower portion of the culture medium cell to cool or heat the root of the plant, and a nutritive solution supplying device for automatically supplying the nutritive solution to a plant planted in the culture medium cell placed a distance from one or more nutritive solution containers, thereby supplying the nutritive solution and air to the root of the plant continuously to maintain the optimum growth environment, forcing the plant growth.

The invention provides a brackish water and fresh water rotation irrigation method for a saline and alkaline land. Irrigation includes irrigation in the seedling period, irrigation in the growing period and irrigation in the cutting period. According to irrigation in the growing period, the ratio of rotation irrigation number of times of the organic-matter-enriched brackish water to that of the fresh water is 1:2, the land is irrigated once every 8-10 days, and the one-time irrigation volume is 450-500 m<3> / hectare. A preparing method for the organic-matter-enriched brackish water includes the step that organic-matter-enriched fertilizer is dissolved in the brackish water. The organic-matter-enriched fertilizer comprises, by weight, 24-26 parts of seaweed residues, 10-12 parts of chicken manure, 1-3 parts of microbial agent, 2-4 parts of magnesium-containing phosphate, 5-8 parts of fulvic acid and 2-3 parts of glutelin cystine. The irrigation method is adopted to plant red clover, the planting survival rate is 98.6-99.2%, and the annual output of red clover fresh grass is 6800-6900 kg / mu.

The invention relates to a water-saving peach tree planting method. The method comprises the following steps that 1, land formation, fertilizer application and ridging are performed, and drainage ditches are dug between ridges; two rows of planting pits are dug in each ridge, saplings of middle-early ripen peach trees are placed into the planting pits; 2, after the saplings are planted, a support is arranged on the ridges, and the saplings are fixed to the support; 3, starting from the current planting year, branches are trimmed one time every winter and every summer; 4, starting from the third planting year, irrigation is performed on time 1-2 weeks before flowering every year; irrigation is not performed any more after fruits in the current year are harvested; 5, starting from the third planting year, root cutting treatment is performed on the middle ten days of every May, and meanwhile top application is performed; 6, starting from the third planting year, the ground surface is covered with a covering object at the end of every May and the beginning of every June; harvesting is performed after fruits are ripened; the covering object is removed after harvesting is performed. According to the water-saving peach tree planting method, water-saving peach tree planting is achieved, and the fruit quality is obviously improved on the premise that the yield is not obviously reduced.

A perforated subirrigation / drainage pipe includes a pipe body and a permeation irrigation inner pipe. The permeation irrigation inner pipe is integrally formed with the pipe body and disposed at a top of an interior of the pipe body along a central axis thereof; multiple irrigation perforations, distributed along a central axis of the permeation irrigation inner pipe, are provided on a pipe wall of the permeation irrigation inner pipe; and an opening is provided on a pipe wall of the pipe body; two flow guide baffles are respectively located at two sides of the opening and on an inner wall of the pipe body; a main irrigation and drainage channel is formed between each flow guide baffle and an outer wall of the permeation irrigation inner pipe, between each flow guide baffle and the inner wall of the pipe body, and between the two flow guide baffles.

The invention provides an organic matter-enriched brackish water irrigation method for saline-alkali soil and application of the irrigation method in planting of silphium perfoliatum. The irrigation method comprises seedling-stage irrigation, wherein irrigation is carried out in the ratio of times of rotation irrigation of the brackish water to fresh water is 1:5, and the amount of irrigation at each time is 300 to 360m<3> / hectare. The irrigation method also comprises growing-stage irrigation, wherein irrigation is carried out in the ratio of times of rotation irrigation of organic matter-enriched saline water to the fresh water is 1:2, the amount of irrigation at each time is 450 to 500m<3> / hectare, and the organic matter-enriched saline water is formed by dissolving an organic matter-enriched fertilizer into the brackish water and performing uniform mixing. The irrigation method further comprises cutting-stage irrigation, wherein irrigation is carried out in the ratio of times of rotation irrigation of the saline water to the fresh water is 1:3, and the amount of irrigation at each time is 500 to 560m<3> / hectare. According to the irrigation method, the annual output of fresh grass for planting of the silphium perfoliatum is 12.8 to 13.2 tons / acre, and the planting survival rate is 99.5 to 99.8 percent.

The invention relates to a root layer moisture monitoring-based winter wheat regulated deficit irrigation method. The method comprises the following steps of ensuring that the average relative water content in 0-20cm soil is not lower than 80 percent in the seeding stage; irrigating when the average relative water content in 0-40cm soil is lower than 65 percent before overwintering from emergence of seedlings; irrigating when the average relative water content in 0-40cm soil is lower than 60 percent from overwintering to the standing stage; irrigating when the average relative water content in 0-60cm soil is lower than 60 percent from the jointing stage to the booting stage; irrigating when the average relative water content in 0-100cm soil is lower than 65 percent from the earing stage to 10 days after the flower; irrigating when the average relative water content in 0-100cm soil is lower than 55 percent from 11 days after the flower to the maturation stage; the irrigation water amount each time reaches field capacity. According to the method, the yield, water use efficiency and irrigation water use efficiency of the winter wheat can be obviously improved.

This underground irrigation system comprises the following steps: embedding a porous pipe 22 into the ground of the fields (cultivation areas 13), setting up a water level setting tool 31 on the lower-stream side of the porous pipe, regulating a drainage water level by the water level setting tool to set the water level of the field, embedding an underground water supply pipe 41 for supplying water for use from a water supply channel 14 into the ground of the field, connecting the underground water supply pipe 41 with the porous pipe 22 at the drainage side of the porous pipe to supply the water for use from the underground water supply pipe to the porous pipe.

The invention relates to a planting bed irrigation device utilizing the capillary action of a planting medium, belonging to the field of hydraulic engineering, wherein the IPC international patent class number is E02B 13 / 00. The planting bed irrigation device comprises a planting nursery bed, a nutrient fluid tank, a water supplying and pressurizing device, a water supply pipeline, a fertilizing device, a water discharging pipeline, an ultraviolet disinfection device, an intelligent controller and the like. The irrigation water treated by the ultraviolet disinfection device enters the nursery bed under the control of the intelligent controller. After optimal soaking time is achieved, a water discharging valve is opened, and the residual water enters a water storage tank by a discharged water collecting system and then treated by the ultraviolet disinfection device to be qualified so as to be used as water for next nursery bed or next irrigation. By adopting the planting bed irrigation device provided by the invention, the problems that the utilization efficiency of irrigation water is low, water distribution in the planting medium is not uniform, the relative humidity in the facility is not easy to control, the nutrient fluid is easily sprayed to flowers and leaves to cause burn and influence economic benefit, the labor management and maintenance cost is high and the like of the traditional irrigation technique for the facility flowers are overcome.

The invention relates to a precise irrigation control method for greenhouse organic substrate cultivated tomatoes. The method comprises the following steps that 1), whether the current hourly moment of the day is within an effective time period of irrigation amount estimation or not is judged; 2), in the effective time period of irrigation amount estimation, time when radiation is accumulated to athreshold value is acquired, whether the time meets an hour duration constraint condition or not is judged, and otherwise, meteorological data per hour in a time interval meeting an irrigation triggering condition at the next hourly moment are acquired; 3), tomato growth parameters and an irrigation model weight coefficient are determined according to the date of the day, a small-time-scale transpiration-radiation comprehensive irrigation model which can be used for predicting the tomato irrigation water demand in a short period is constructed, and the irrigation amount per hour in a time period meeting the irrigation triggering condition is estimated; and 4), irrigation triggering time and irrigation amount information are sent to irrigation equipment to execute irrigation. Compared withthe prior art, according to the precise irrigation control method for the greenhouse organic substrate cultivated tomatoes, a user does not need to manually start the irrigation equipment and set theirrigation amount each time according to experience, and the irrigation equipment can be automatically started to implement irrigation.

The invention discloses a water conductive seepage machine and a water conductive infiltrating irrigation machine and the infiltrating irrigation method. The water conductive seepage machine includes water conductive machine and seepage machine. The water conductive machine possess cyclic-ring dent structure which is used to fix the wall of the water supply pipe, the crisscross and viscous flow channel are equipped on the surface of the seepage machine. The water conductive infiltrating irrigation machine includes water conductive seepage machine and water conductive infiltrating irrigation pipe tightly covered on the seepage machine, the crisscross and viscous flow channel are equipped on the surface of the seepage machine, on the end of the infiltrating irrigation pipe there are one or several openings. The method of infiltrating irrigation is as follows: the water conductive machine is fixed on the wall of water supply pipe, the cut of the water conductive infiltrating irrigation pipe is introduced into the root area, the liquid enters the infiltrating irrigation machine from the water supply pipe, passes the crisscross and viscous flow channel and infiltrates into the soil through the water conductive infiltrating irrigation pipe.

The invention provides a brackish water and fresh water mixed irrigation method for saline-alkali soil. The irrigation method is characterized by comprising seedling-stage irrigation, intermediate-stage irrigation and cutting-stage irrigation. According to the seedling-stage irrigation, the ratio of times of rotation irrigation of brackish water to fresh water is 1:4, and the amount of irrigation at each time is 300 to 400m<3> / hectare. According to the intermediate-stage irrigation, the ratio of times of rotation irrigation of amino acid-enriched saline water to the fresh water is 1:3, irrigation is carried out for one time every five to seven days, and the amount of irrigation at each time is 400 to 500m<3> / hectare. The amino acid-enriched saline water is formed by dissolving an amino acid fertilizer into the brackish water, and components of the amino acid fertilizer comprise 5 to 6 percent of valine, 7 to 9 percent of cystine, 3 to 4 percent of aspartic acid, 2 to 3 percent of hydroxyproline, 3 to 5 percent of tryptophan, 3 to 6 percent of serine, 7 to 8 percent of threonine and 10 to 16 percent of microelement. Amaranthus hypochondriacus is planted by using the irrigation method, the annual output of fresh grass is 20,000 to 22,000kg / acre, and the protein content of the fresh grass is 25.2 to 28.8 percent.

The invention discloses a saline-alkali soil trace-element-rich brackish water irrigation method and an application thereof in indian lettuce planting. The saline-alkali soil trace-element-rich brackish water irrigation method comprises: seedling-stage irrigation, growth-stage irrigation, and fast-growing stage irrigation. The fast-growing stage irrigation adopts an alternating irrigation mode in a ratio of times adopting trace-element-rich brackish water to times adopting fresh water of 1 to 2, wherein irrigation volume at every turn is 550-650 m3 / hectare. The trace-element-rich brackish water is prepared by dissolving a trace element fertilizer in brackish water. The seedling-stage irrigation adopts an alternating irrigation mode in a ratio of times adopting brackish water to times adopting fresh water of 1 to 3, wherein irrigation volume at every turn is 280-320 m3 / hectare. The growth-stage irrigation adopts an alternating irrigation mode in a ratio of times adopting brackish water to times adopting fresh water of 1 to 2, wherein irrigation volume at every turn is 430-470 m3 / hectare. The saline-alkali soil trace-element-rich brackish water irrigation method disclosed by the invention is adopted for planting indian lettuce, wherein the annular output of fresh grass is 11000-12000kg / mu.

The invention discloses an irrigation water effective utilization coefficient measuring and calculating method based on remote sensing, and the method comprises the steps: (1) obtaining a remote sensing image containing visible light and thermal infrared bands, and carrying out the preprocessing; (2) acquiring meteorological data and digital elevation model data; (3) acquiring irrigation water consumption data of each time in the irrigation area; (4) calculating the total evapotranspiration of the irrigation area; (5) acquiring soil type data, land utilization data, vegetation data and precipitation data, and calculating the total surface runoff in the irrigation area through a hydrological model; and (6) measuring and calculating the effective utilization coefficient of irrigation water.The method overcomes the defects that an existing head-tail measuring and calculating method is high in requirement for the agricultural metering rate, typical fields are difficult to select in the actual operation process of a complex irrigation area, the manual monitoring range is limited, the point-to-face phenomenon is prominent, and the measuring result is greatly influenced by the level of monitoring personnel; and the method has the advantages of being large in scale, efficient and accurate.

The invention discloses a diverting seepage machine and a diverting infiltrating irrigation machine and the infiltrating irrigation method. The diverting seepage machine concludes diverting machine and seepage machine. The diverting machine possesses a three-way construction, the crisscross and viscous flow channel are equipped on the surface of the seepage machine. The diverting infiltrating irrigation machine includes diverting seepage machine and water conductive infiltrating irrigation pipe tightly covered on the seepage machine, the crisscross and viscous flow channel are equipped on the surface of the seepage machine, on the end of the infiltrating irrigation pipe there are one or several openings. The method of infiltrating irrigation is as follows: both ends of the diverting machine on the same axial cord are connected with the water supply pipe, the cut of the water conductive infiltrating irrigation pipe is introduced into the root area, the liquid enters the infiltrating irrigation machine from the water supply pipe, passes the crisscross and viscous flow channel and infiltrates into the soil through the water conductive infiltrating irrigation pipe. The advantage of the invention concludes simple construction, convenient assemblage, good effect and the reduced evaporation on the top of the soil, the distance between plants and mountain land is not constrained and the use of the infiltrating irrigation machine will not be influenced.

The invention discloses a water-saving irrigation device for agricultural greenhouse planting. The water-saving irrigation device comprises a movable irrigation frame, two irrigation connecting frames, an irrigation spray pipe, a connecting assembly and a rotating roller shaft, wherein the two irrigation connecting frames are mutually symmetrical about the axis of the movable irrigation frame; andthe irrigation spray pipe is horizontally fixed between the top ends of the two irrigation connecting frames. The water-saving irrigation device has the advantages that the bottom of the irrigation spray pipe is horizontally connected with the rotating roller shaft through the connecting assembly; the surface of the rotating roller shaft is connected with a turning tooth frame; during irrigationoperation, the rotating roller shaft can be driven by a driving motor to rotate; the rotating roller shaft drives the turning tooth frame to push aside leaves of plants; then, water spraying irrigation is performed through an irrigation spray head arranged on the irrigation spray pipe, so that the sprayed water can be directly sprayed onto the soil to be absorbed by the soil; the circumstance thata great number of water is attached onto the leaves is avoided; the evaporation loss is reduced; the water quantity required by the single irrigation is reduced; and a purpose of saving water is achieved.

The invention is a method for cultivating black tomatoes. The method comprises the following steps: (1) soil: selecting sandy loam or sticky sandy loam; (2) seedling raising: raising seedlings in a seedbed, then continuing to raise seedlings in a nutrition pot, and then transplanting with soil for field planting; (3) planting: deeply ploughing outward and expanding in combination with applying of base fertilizer in the fall every year after planting, mixing soil improvement liquid in surface soil when the soil is backfilled; (4) fertilization: improving the soil condition by the base fertilizer in combination with deep ploughing after harvesting fruits, performing internal fertilization for three times every year, starting topdressing from late May every year, wherein the topdressing is performed within one to three months before harvesting, spraying a foliar nutrient solution once every half month; (5) irrigation: irrigating once in budding, flowering and fruit expansion periods, irrigating frozen water before winter, and supplementing water once every 10-15 days in other periods, wherein the quantity of water is subject to spray-wet. The black tomatoes cultivated through the method provided by the invention have good taste, good coloring and high sugar content, can improve disease resistance of seedlings, have stronger disease resistance, good inflorescence and fruiting uniformity, few dehiscent fruits, and are convenient to pick.

The invention relates to a light intelligent water and fertilizer all-in-one machine and process based on machine learning. The process comprises the steps of: S1, establishing an irrigation decision based on illumination, a time sequence and soil moisture; and S2, establishing a fertilization decision based on the proportion and the EC value. In the step S1, S1.1, an irrigation decision based on illumination is established and divided into a crop parameter model control mode and a machine learning parameter control mode; firstly, a crop parameter model is established; then, the single irrigation duration T, unit and min are determined; secondly, a producer inputs parameters into the water and fertilizer all-in-one machine according to planting conditions, and the parameters include crop planting, crop rotation, a growth period, field planting density and / or dripper flow; and thirdly, the irrigation coefficient A is adjusted according to an empirical value based on a previous test result according to planting prefabrication and a water quantity multiple J function. The machine is reasonable in design, compact in structure and convenient to use.

The invention discloses a water seeping block, infiltrating irrigation machine and the infiltrating irrigation method. The water seeping block possesses the column-enveloping outline, and the interlaced water channels for viscous flow are equipped in the surface of the water seeping block. The infiltrating irrigation machine for sub-irrigation comprises water conduit for infiltrating irrigation, the inner of the water conduit is equipped with the water seeping block which with the surface equipped with interlaced water channels for viscous flow, and in the end of the water conduit for infiltrating irrigation, one or more openings are equipped. The method of infiltrating irrigation for sub-irrigation is: connecting one end of the infiltrating irrigation machine with the water inrush tube, the end equipped with opening entering into the plant root zone, the liquid coming from water inrush tube entering into the infiltrating irrigation machine and passing the interlaced water channels equipped in the surface of the water seeping block, and then inflowing into the end of the infiltrating irrigation machine which is equipped with opening and finally infiltrating into the soil of the plant root zone.

The invention discloses a process for purifying and recycling crop irrigation water. The process method comprises: an irrigation sewage collecting tank, a grille (for removing relatively big suspended substances), a wastewater depositing and collecting tank, a sewage input pipeline and a valve, a water pump, a low-oxygen membrane reactor, output of purified water, and re-irrigation. The process mainly utilizes a low-oxygen membrane bioreactor to perform deep purification on agricultural irrigation water to ensure that the treated water quality reaches a standard for nuisance-free vegetable irrigation water. The process method is energy-saving and environment-friendly, is convenient to operate, and is suitable for popularization and use in the field of treatment of irrigation water.

The invention belongs to the technical field of soil remediation, and discloses a magnetic charcoal soil remediation agent for soil heavy metal pollution, a preparation method thereof and application of the magnetic charcoal soil remediation agent in polluted soil remediation. The magnetic biochar soil remediation agent is prepared through the following steps that solid waste rich in ferromagnetic iron / cobalt / nickel compounds is crushed and then subjected to chloridizing roasting; magnetic particles are collected through magnetic separation; and then the magnetic particles are mixed with agricultural wastes or a mixture of the agricultural wastes and urea according to a ratio, and then carbonization, ball milling and magnetic separation are carried out. The invention further discloses a method for repairing soil by adopting the magnetic biochar. The method of secondary ploughing and secondary irrigation is adopted, the magnetic biochar and the discharged floating biochar are separated through a magnetic rotary knife, soil heavy metal can be effectively removed, and a new way is provided for treatment of soil heavy metal pollution.

The invention relates to the technical of crop yield increasing cultivation, in particular to a soybean yield increasing method. In the soybean emergence stage, a mepiquat chloride aqueous solution with the concentration being 50 mg / kg is sprayed on the leaves of soybeans and continuously sprayed for three times, and the solution is sprayed every 3-5 days; in the soybean seedling growth stage, chlormequat chloride with the concentration being 1200 mg / L is sprayed on the leaves of the soybeans and continuously sprayed for three times, and chlormequat chloride is sprayed every 3-5 days; in the soybean branching stage, a diethyl aminoethyl hexanoate aqueous solution with the concentration being 130 mg / kg is used for subirrigation for one time; in the soybean flowering stage, the soybeans are slightly blown through a fan heater, the air speed of the fan heater is 1.8-2 m / s, and air outlet temperature is 24-26 DEG C; in the soybean pod bearing stage, 10-12 kg of quickly-effective phosphorus fertilizer is applied each mu.

A subirrigation system 10 includes a water-impervious member 16, and keeps water content in soil of a cultivated land 200 in a proper state for growing a plant. The water-impervious member 16 is formed into an upper opening vessel shape, and has a water reserving function. Water is fed to an inner portion of the water-impervious member 16 from a water tank 12 via a feed water pipe 14, whereby a soil portion 26 in a gravitational water state is formed. A water level 28 of the gravitational water within the water-impervious member 16 is properly controlled to a desired water level by a water level controller 18 provided in the feed water pipe 14. The gravitational water within the water-impervious member 16 controlled to the desired water level is appropriately sucked up to the soil in an upper layer in accordance with a capillary phenomenon. Accordingly, a soil portion 30 in a capillary water state having proper water content is formed in the cultivated land 200.

The invention discloses an irrigation water effective utilization coefficient measuring and calculating method based on remote sensing, and the method comprises the steps: (1) obtaining a remote sensing image containing visible light and thermal infrared bands, and carrying out the preprocessing; (2) acquiring meteorological data and digital elevation model data; (3) acquiring irrigation water consumption data of each time in the irrigation area; (4) calculating the total evapotranspiration of the irrigation area; (5) acquiring soil type data, land utilization data, vegetation data and precipitation data, and calculating the total surface runoff in the irrigated area through a hydrological model; and (6) measuring and calculating the effective utilization coefficient of irrigation water. The method overcomes the defects that an existing head-tail measuring and calculating method is high in requirement for the agricultural metering rate, typical fields are difficult to select in the actual operation process of a complex irrigation area, the manual monitoring range is limited, the point-to-face phenomenon is prominent, and the measuring result is greatly influenced by the level of monitoring personnel, and has the advantages of being large in scale, efficient and accurate.

The invention relates to the technical field of lawn planting maintenance, and discloses a lawn cover-sowing method based on south-north transition zones of China, which comprises the steps of a, a, treating warm season lawns before cover-sowing, to be specific, a1, carrying out warm season lawn pruning, a2, carrying out lawn ventilation, a3, carrying out lawn weeding and disinfestation, and a4, carrying out fertilization and watering; b, sowing cold season grass seeds, to be specific, b1, sowing the seeds, and b2, covering with soil; c, providing seedling stage maintenance, to be specific, c1, watering, and c2, trimming. Also included is a maintenance method of a cold season lawn and a warm season lawn in succession stage from the beginning of May to the end of July; the maintenance method for the succession stage comprises the steps of pruning the lawns in May; irrigating once a week if there is no raining, irrigating each time being stopped until 5-10 cm of soil is saturated. The cover-sowing method disclosed by the invention helps keep the lawns in the south-north transition zones of China evergreen in four seasons, the lawns are good in color, texture, uniformity and density improvement, and the ornamental performance of the lawns is obviously improved.

The invention provides a method for planting lycium barbarum in saline-alkali land. The method comprises the steps that seed treatment and two-time adaptive cultivation are conducted, upper and lowerdrip irrigation pipes are sequentially and alternatively used for irrigation, fresh water starts to be poured at the interval time of 2-4 h after lower-layer salt water irrigation during first irrigation, the interval time is gradually shortened in the later period, lycium barbarum is cultivated for improving the adaptability to salt and alkali, the cultivation of two generations is conducted continuously, and the interval time between salt water irrigation and fresh water irrigation for the second generation is shortened to be 1-2 h; in the transplanting field, treatment ditches of the saline-alkali land are internally laid with flax fibers with the thickness of 0.1-0.4 m at first, backfilled with saline-alkali soil and then laid with gastrodin organic fertilizer with the thickness of 0.2m, and after irrigation is conducted once, cuttage, cultivation and harvesting are conducted. By means of the method for planting lycium barbarum in the saline-alkali land, few pests and diseases occur, the yield is increased, the quality is improved, the thickness of fruit pulp is increased, and the influence on the content of polysaccharide and betaine of lycium barbarum is significant. When lycium barbarum is planted, the physical, chemical and biological characters of the soil are improved, the salinity of the soil is decreased significantly, the yield of lycium barbarum is increased significantly, and 1 / 3-2 / 3 of consumed water for ordinary planting is saved.

The invention relates to the field of water conservancy equipment, in particular to a water conservancy irrigation device which comprises a vertically-arranged supporting mounting barrel. A water inlet pipe is vertically arranged at the upper left corner of the supporting mounting barrel, a flow guide partition plate is horizontally arranged on the lower half section of the supporting mounting barrel, and an active flow guide cylinder is vertically arranged at the right side of the supporting mounting barrel; a liquid feeding flow guide cylinder is horizontally arranged at the lower end of theactive flow guide cylinder, the lower right corner of the supporting mounting barrel is communicated with the active flow guide cylinder, a liquid pumping hole is formed, a one-way valve is arrangedin the liquid pumping hole, quantitative irrigation is conducted through liquid pumping and discharging of a piston, and in the irrigation process, primary mixing of snake-shaped flow guiding is conducted in cooperation with the liquid pumping process; and then secondary mixing of a turbulent flow column is carried out in cooperation with the liquid discharging process, a stirring device is omitted, the single irrigation amount is controlled through active adjustment of the height, the irrigation adaptability adjustment capacity of the device is good, uniform drip irrigation is used in cooperation, and the irrigation precision and quality of the device are remarkably improved.

The invention discloses a soil leaching liquor in-situ measurement method, which belongs to the research field of environmental science, soil science and plant nutrition. The soil leaching liquor in-situ measurement method of the invention includes the following steps: a soil profile in the vertical direction is obtained and a horizontal cave is dug based on the target depth of the soil profile; a horizontal leaching plate is arranged in the cave to collect the leaching liquor, and the leaching liquor in the leaching plate can automatically flow into a sample bottle through an outlet pipe; soil of the soil layer with a corresponding depth is used for filling the cave; according to the steps, a vertical waterproof wall body is built along the vertical soil profile to ensure that the outletpipe can pass through the wall body; meanwhile, the soil is backfilled layer by layer and then compacted layer by layer, and moreover, in order to recover the raw condition of the backfilled soil as possible, the backfilled soil is irrigated for a plurality of times. The soil leaching liquor in-situ measurement method of the invention is especially suitable for monitoring the influence caused by the soil leaching liquor of such soil solute as nitrogen, phosphorus and pesticide, etc. to the groundwater; particularly, under the condition of realizing the in situ monitoring, the sampling difficulty is reduced and the sampling process becomes simple and fast.

The invention provides a tidal seedling monitoring and irrigation decision-making method, device and system, and the method comprises the steps: obtaining the matrix saturation weight when a plant and a matrix in a cultivation tank integrally reach a stable saturation state through a weighing mechanism after each irrigation, and calculating the matrix saturation weight according to the matrix initial saturation weight when the matrix is saturated by irrigation before the plant is planted; calculating the fresh weight of the irrigated plants; obtaining the real-time weight of the whole matrix of the plant and the matrix through a weighing mechanism, and calculating the real-time reference irrigation amount in combination with the fresh weight of the plant and the saturated weight of the matrix; acquiring the real-time water content of the substrate, and if the real-time water content of the substrate is smaller than the irrigation threshold value, irrigating the seedling raising plate based on the real-time reference irrigation amount. According to the method, manual frequent measurement operation records are not needed, and the field monitoring installation process is greatly simplified. The growth condition parameters such as the plant weight can be accurately obtained in a weighing mode, the problem that online obtaining of crop information is difficult is solved, and accurate irrigation can be conducted according to the plant growth conditions in different periods.

The invention discloses an automatic irrigation and fertilizing device. The automatic irrigation and fertilizing device comprises a frame and is characterized in that a fertilizer bin is arranged on the frame and comprises a plurality of sub-fertilizer bins, a collecting cylinder is arranged on the frame, the sub-fertilizer bins are communicated with the collecting cylinder through collecting pipes, a central shaft is mounted in the collecting cylinder, a spiral blade is connected to the central shaft, the collecting cylinder is connected with a fertilizer discharge pipe, a liquid fertilizer cylinder is mounted on the frame and provided with a fertilizing receiving port, the liquid fertilizer cylinder is connected with a liquid fertilizer circulating pipe, a water-fertilizer mixer is mounted on the frame and comprises a water inlet end water collecting cylinder, a water outlet end water collecting cylinder and Venturi tubes, the water outlet end water collecting cylinder is connected with an irrigation water circulating pipe, a booster pump is mounted on the frame, the water inlet of the booster pump is connected with the irrigation water circulating pipe, a liquid fertilizer pumpis mounted on the frame, the liquid inlet of the liquid fertilizer pump is connected with the liquid fertilizer circulating pipe, the fertilizing sucking port of the Venturi tubes are connected with fertilizer sucking pipes, and the fertilizer sucking pipes are communicated with a liquid fertilizer outlet pipe. The automatic irrigation and fertilizing device can perform irrigation and fertilizingand is capable of applying various fertilizer in one irrigation and high in work efficiency.

The invention discloses a rainwater greening irrigation system and a construction method thereof. The rainwater greening irrigation system comprises a water storage end and a movable irrigation end, the water storage end is connected with a municipal drainage port, the water storage end comprises a water storage pipeline, and the two ends of the water storage pipeline are blocked; and the movableirrigation end comprises a moving mechanism, a water storage tank and an irrigation sprayer, the water storage tank and the irrigation sprayer are carried on the moving mechanism, the water storage tank is connected with a water pumping mechanism and connected with the water storage pipeline through the water pumping mechanism, water is supplemented to the water storage tank, and the irrigation sprayer is connected with the water storage tank. Rainwater is treated and utilized, so that the purpose of rainwater greening irrigation is achieved. The rainwater greening irrigation system comprisesthe water storage end and the movable irrigation end, the rainwater is collected and stored through the water storage end, the movable irrigation end uses the water storage end as a water source, greening vegetation is sequentially irrigated through movement, and the purpose of fully utilizing the rainwater for irrigation is achieved.