1394results about How to "Guaranteed survival rate" patented technology

The invention provides a microfluidic device and a method for preparing microgel by using the microfluidic device. The method comprises the steps of (1) taking a solution containing live cells or bioactive molecules, a photocuring agent and a hydrogel prepolymer as an internal phase, taking a mixed solution containing oil and an surfactant as an intermediate phase, and taking a polyvinyl alcohol aqueous solution as an external phase; (2) respectively conveying the internal phase, the intermediate phase and the external phase into a corresponding microchannel of the microfluidic device through a micro pump or a micro injector to form a monodispersed water-in-oil-in-water double emulsion; (3) enabling the monodispersed water-in-oil-in-water double emulsion in the step (2) to pass through an output channel of the microfluidic device, and collecting the monodispersed water-in-oil-in-water double emulsion in the step (2) into a collection vessel filled with an aqueous solution, thus obtaining the microgel immobilizing with the live cells or the bioactive molecules. The preparation of the microgel immobilizing with cells by a one-step method is realized, the obtained microgel is controllable in size, and narrow in size distribution, and meanwhile the survival rate of cells is maintained.

The invention relates to a seedling growing method of apocarya and belongs to the technical field of fruit trees and forest cultivation. The method includes the steps of sprouting breeding, grafting and post-grafting management. By means of the method, a large amount of scions are obtained each year and are grafted on the stock and the seedling with strong affinity in due time, so that stock grafting survival rate of the apocarya is improved. Grafted seedling preserving rate after large-amount grafting is over 90%. Further, the method achieves tree body stuntedness, shortens the juvenile phase and enables tree bodies to fruit earlier in the fourth year after grafting. The fruiting time is 6-8 years earlier than before. Simultaneously, the method provides a growing method for apocarya stock grafting seedlings and with strong operability for batch and variety seedling growing of the apocarya and greatly increases economical value of the apocarya.

The invention discloses a vegetation configuration method for preventing the water and soil loss of a mine dump of a dry-hot valley. The method comprises the following steps: performing topsoil stripping on the dump; building an intercepting ditch, a drainage ditch and a water collecting tank on a platform of the dump; screening vegetation types, including shrubs, herbs and liana, suitable for growing in the mine dump of the dry-hot valley; performing targeted planting; after the vegetation of the mine dump is planted, enclosing the dump by using a wire mesh or a fence to prevent a slope surface from being destroyed by domestic animals. According to the principles of soil and water conservation and restoration ecology, vegetation species are reasonably combined by aiming at that the habitat of the mine dump of the dry-hot valley is severe and different slope positions have different soil erosion intensity and water conditions, so that a reliable technical path is provided for recovering the vegetation in a mining region as quickly as possible. Moreover, the vegetation configuration method for preventing the water and soil loss of the mine dump of the dry-hot valley has the characteristics of high operability and high comprehensive benefit.

The invention provides a new modifying agent formulation for alkaline soil, which can improve the alkaline soil modifying efficiency by calcium sulfate and phosphogypsum, and the product can be also used in alkali and arid area. The product comprises the following components by weight: calcium sulfate 1,straw 0.5-1.5, urea 0.01-0.08. The important contribution of the invention is that it takes the advantage of straw and mixes with calcium sulfate or with fertilizer industrial waste which combines the chemical modifying with physical modifying, which can improves the soil consolidation essentially, and the modifying effect is obviously better than simple chemical modifying on the condition of not proceeding eluting. The product can not only be used in the ground-crop cultivation proceeding irrigation and draining, but also can be used in forest plantation which not proceeding manual irrigation.

The invention discloses a device and a method for burying a soil pressure cell, relating to the soil pressure cell application technique when monitoring the soil pressure during the risk evaluation and control in civil engineering. The device consists of a base and a sliding pushing guideway; the base can freely slide on the siding pushing guideway; the base comprises a soil pressure cell bottom shoe (2), a guideway wheel (3), a lead pipe trough (4) and a connecting batten plate (5); the sliding pushing guideway comprises a U-shaped guide sliding trough (6), a connecting steel plate (7), a position limit plate (8), a steering shaft (9), a steering steel wire (10), a rigid connecting plate (11) and an L-shaped screw (12). The device and the method for burying a soil pressure cell can be widely applied to the burying which is in the risky evaluation of deep pit construction of urban subway station or high-rise building and during monitoring and measuring the soil pressure; the survival rate of the soil pressure cell is high, the burying depth is not restricted, the positioning is exact, the installation cost is low, the data is true and exact and the regularity and pertinence are good.

The invention provides a litchi grafting method, which comprises the following steps of scion and stock selection, grafting preparation, grafting and post-grafting management. Seedling litchi seedlings have arbor wood roots, the root systems are developed, and the grafting survival rate is ensured through selecting the seedling litchi seedlings as stocks; the seedling litchi seedlings and high-quality litchi seedlings belong to one family, the affinity between scions and stocks is high, the grafting success rate is greatly improved, and the growth speed of the grafted seedlings after the grafting can also be accelerated; the litchi seedlings have higher drought resistance capability, and the grafting survival rate can be ensured under the drought conditions, so the grafted litchi seedlings can bloom and bear fruit in three years. The litchi grafting method has the advantages that simplicity and convenience are realized, the survival rate is high, the coverage rate of high-quality litchi varieties can be improved, and the advanced blooming and fruiting of litchi can be realized.

The invention relates to a planting method of famous and precious Chinese herb medicine dendrobium officinale, and the method is characterized in that a cultivation bed of a plantation trough with an undulated bottom is established under a certain facility environment, multiple mixed organic matrixes mainly comprising pine bark are paved, a nondestructive planting technology for stretching tissue culture seedling roots is adopted, and scientific and reasonable dendrobium officinale planting method adopting comprehensive cultivation measures such as a photo and temperature control technology, a fertilizer control technology, an insect and harmful organism nuisanceless control technology and a sustainable harvesting technology is adopted in different growth seasons and for different plants according to the biological characteristics of the dendrobium officinale; and due to the adoption of the method, the ventilation, moisture evaporation and moistening functions of a plant root environment can be enhanced, and harmful substances influencing the growth of the plant can be eliminated in time, so that the plant can grow strong, active components are highly concentrated, the resistance is enhanced, a purpose of high yield and excellent quality can be realized, the high yield and stable yield of the dendrobium officinale can be guaranteed, the product quality is excellent, sustainability for harvesting the dendrobium officinale for multiple years can be realized, and super high yield of fresh products about 600kg per Mu every year can be realized after the method is put into production.

The invention relates to an aqueous culture method of anoectochilus. In the method, anoectochilus germchits are cleaned and sterilized, transplanted in a culture dish and cultured in a culture groove filled with an aqueous culture solution; each 10L of aqueous culture solution contains the following components: 650 to 800mg of calcium nitrate tetrahydrate, 50 to 60mg of ammonium nitrate, 280 to 350mg of potassium nitrate, 100 to 130mg of potassium dihydrogen phosphate, 350 to 380mg of magnesium sulfate, 0.5 to 0.8mg of potassium iodide, 2 to 5mg of manganese sulfate, 0.2 to 0.3mg of sodium molybdate, 0.1 to 0.2mg of cobalt chloride, 2 to 4mg of boric acid, 0.5 to 1mg of zinc sulfate, 0.3 to 0.5mg of copper sulfate and 3 to 5ml of iron salt solution, wherein the iron salt solution is prepared by mixing water, green vitriol and ethylenediamine tetraacetic acid disodium. The method has the advantages of lowering production cost, simplifying production process, improving the growth of anoectochilus plants and improving the survival rate of anoectochilus plants.

The invention discloses a breeding method of the loach, which can be used for improving the spawning expediting rate and the fertilization rate of the loach and the livability of the loach seedlings. The breeding method of the load comprises the steps of: a. respectively breeding the male loach and the female loach a half month before spawning expediting; b. adding a biological odinagogue into forage one week before spawning expediting, wherein the biological odinagogue specifically comprises 15-20g of Chinese angelica, ligusticum wallichii, folium artemisiae argyi, andrographis paniculata, rehmanniae vaporata and compound vitamins respectively, and the adding quantity is that 5-10g of the biological odinagogue is added into each kilogram of the forage, and continuously feeding the forage which is added with the biological odinagogue for 7 days; and c. making sets according to the proportion that the ratio of the female loach to the male loach is 1:1.5, and injecting 100-150 international units of HCG (human chorionic gonadotropin) into each loach. The breeding method has the beneficial effects that the female loach and the male loach are synchronously estrous after the breeding method is used, so that the spawning expediting rate and the fertilization rate of the loach are greatly improved. After a preferable mode of the breeding method is adopted, the cost can be reduced when the seedlings are bred, and the bait with an enough quantity can be timely provided, so that the livability of the loach seedling is guaranteed, and the large-scale production is realized.

The invention relates to a method for cultivating swamp eels and a device thereof and pertains to the technical field of agricultural cultivation, which is used for solving the problem of industrial high-density cultivation of the swamp eels under the unnatural conditions. The technical proposal thereof is that a three-dimensional multilayer small-area controllable water level combined-typed cultivating pool is arranged at the heliophobe indoor; according to the living habits and requirements of the best growing environmental conditions of the swamp eels, water source, the conditions of water quality, breeding density and bait proportion are configured for cultivating the swamp eels. Meanwhile, the three-dimensional combined-typed cultivating pool, a filtration pool, a deposition pool, an oxygenation pool, a dosing pump, a disinfector, a thermostat, and the like, form a closed water cycle system. And the problems of water supply, filtration, deposition, disinfection, constant temperature, constant flow, oxygenation, pollution discharge, and the like, under the condition of high density cultivation are solved in the cycle. By applying the method and the device of the invention, the swamp eels can be cultivated all the time without the influences of season and climate, and the large-scaled industrial cultivation of the swamp eels which are excellent special aquatic products can be realized.

The invention discloses a high-precision distributed optical fiber sensing and monitoring technical scheme and system. Its optical demodulator adopts high-precision pre-pulse Brillouin optical time domain analyzer PPP-BOTDA or Brillouin-Rayleigh synthesis system; its sensing optical cable adopts photoelectric composite cable with sufficient electric heating energy to ensure electric heating temperature rise The mutation signal whose amplitude is at the intersection of the optical fiber and the soaking line can be reliably identified; the signal-to-noise ratio of the system is as high as 10-20, which enables efficient and reliable observation of the soaking line and the groundwater level of the dam base. It can be used for large-scale-time-space double-coverage online telemetry of the groundwater level of the soil-rock dam soaking line and the anti-seepage curtain of the dam foundation. Its "one machine with multiple functions" has obvious advantages, and it can also measure the concentrated leakage of dams, silt in reservoirs, etc. Specific implementation methods are provided, including the layout method of the sensing optical cable for the monitoring of the soaking line and groundwater level - the wave pattern and technical details of the laying of the optical cable, which can effectively guarantee the survival rate of the optical fiber and minimize the interference to the dam construction.

The invention discloses a method for culturing large eucalyptus seedlings. The method comprises the following technical steps: 1. selection of seedling field; 2. preparation of a plug seedling bed; 3.preparation and sterilization of matrix soil; 4. selection and treatment of ear rods and tissue culture seedlings; 5. cutting and plug transplantation of the tissue culture seedlings, wherein, the cutting seedlings are vertically inserted in the midpoint of holes at depth of 1.5-2cm; and the tissue culture seedlings are directly transplanted to the prepared plug seedling bed; 6. water and fertilizer management; 7. transplantation in vessels: the seedlings are cultured in the plugs for about 50-70 days, and terminal buds are newly extracted to 2-3cm; when the root systems of most of nursery stocks are lumped, the seedlings in the plugs are transplanted to a black polyethylene plastic nursery cup with 8*8 (cm) for culturing the large seedlings; and 8. culture of the large seedlings: the transplanted young seedlings are placed in a shading arched cover for culture, and a shading net is gradually opened for hardening the seedlings at the later period; water and fertilizer management is strengthened; and then the seedlings are removed out of a seedling nursery and planted in a mountain for afforestation in the case of seedling height up to 35-50cm and ground stems up to more than 0.25cm, fertilization is stopped 10 days before afforestation, and the nursery stocks are applied with transferring fertilizer by 0.3% of complex fertilizer once 1-2 days before outplanting.

The invention discloses a cocoa tea great parental stock grafting method of cultivation, comprising: (1) the choice of the grafting time: the grafting time is from the late autumn or the early winter to the February of the next year; (2) the choice of parental stock: a 5-15 year-old pu erh tea plant growing in tea garden with broken parental stock and repaired fault plane is selected as the parental stock; (3) the choice of cion of the cocoa tea: the cion of the cocoa tea is the clonal fine variety of cocoa tea and the cion wattle is the lignified wattle born in the last year or the semi-lignified wattle born in the current year; (4) cion cutting: the cut cion is immerged into the auxin accelerating the generation of callus; (5) grafting: the cion is engrafted into the parental stock; (6) bag-covering colligating: the parental stock connected with the cion is colligated by a transparent and enduring plastic bag; (7) an awning is established by a rack to protect; (8) the fallow and the supplement of water; (9) the remove of bag: the plastic bag and a sunshade net can be gradually removed after the cion survives. The method of cultivation of the invention has a high survival rate and a high garden forming speed, with unchanged basic property of cocoa tea, thereby increasing the quality of theanine.

The invention relates to a grain dryer. An inner cavity of a drying tower of the grain dryer comprises a feeding bin and a multi-stage drying bin and tempering bin alternate arrangement structure from top to bottom, a discharging bin is arranged below a tempering bin on the lowermost layer, hollow partitioning plates are arranged inside drying bins, cavities of the hollow partitioning plates are ventilated, grain passes through the gap between every two adjacent hollow partitioning plates, through holes are formed in the faces of the hollow partitioning plates, air channels comprise hot air channels and secondary hot air channels, hot air is transmitted layer by layer between the drying bins from bottom to top through hot air conveying pipelines, and in the drying bin on each layer, the hot air passes through the through holes in the corresponding hollow partitioning plates from the corresponding hot air channels to permeate into material channels and then permeates into the corresponding secondary hot air channels to enter the drying bin on the upper layer. The grain is dried inside the drying tower in a clockwise or anticlockwise mode, heat exchange is performed between the high-temperature hot air and the grain high in water content and low in temperature, the temperature of the grain is increased rapidly to evaporate water inside, the grain enters the tempering bins to be tempered for a period of time after being dried, the water inside the grain permeates outwards, next-time drying is performed, and evaporation of the water inside the grain is completed in a gradient mode.

The present invention belongs to the technical field of tree transplanting and maintaining, specifically an integrated device for landscape tree / seedling maintaining. The device includes an aboveground device and an underground device, wherein the underground device contains a U-shaped permeating pipe and an underground water storage device. The U-shaped permeating pipe is buried close to the location of the root system of the landscape trees / seedlings with one end of the U-shaped permeating pipe connected to the buried underground water storage device and the other end of the U-shaped permeating pipe stretching out of the ground. The aboveground device contains an infiltrating and irrigating bag and a three-way pipe, wherein the infiltrating and irrigating bag covers the base part of a tree trunk and is connected with the other end of the U-shaped permeating pipe by the three-way pipe. The landscape tree / seedling maintaining integrated device has various maintaining functions such as supplying water and medicine, preserving moisture and temperature, preventing transpiration of branches and trunks, supplementing the root system with water, draining off water for ventilation, and automatically accumulating rainwater.

The invention relates to a method for improving saline soil in excavated groves of border trees in a coastal region. The method comprises the following steps: 1, draining salt underground; 2, excavating the original soil in excavated groves of the border trees, airing the excavated soil aside, watering the excavated soil thoroughly, making a soil body in a freeze thawing state, repeatedly naturally freezing and thawing the soil body in winter, thawing the soil body in spring, mixing industrial wastes in the soil body, blending uniformly, and directly backfilling the blended soil serving as backfill into ditches excavated for the border trees; 3, starting border irrigation with a great amount of water, soaking the soil body, draining saline water through a concealed pipe salt drainage system, and stop salt-leaching when soil salinity in 1-meter soil body is detected to be below 0.5 averagely; 4, mixing organic wastes in surface soil in the depth of 30cm, and performing rotary tillage to mix uniformly; and 5, selecting saline-alkali tolerant plants, namely trees and shrubs and leguminous plants for improving soil, arranging three-dimensionally, and finishing according to a garden plantation standard. By various means such as engineering and physical improvement and biological treatment, the comprehensive effectiveness is obvious.

A trichogramma dispenser comprises a rack and is characterized in that an upper connecting plate and a lower connecting plate are arranged on the rack; an intermediate rotating shaft is arranged on the upper connecting plate and the lower connecting plate and is connected with an upper wheel disc and a lower wheel disc; a circle of longitudinally arranged emitting bins are fixed on the peripheries of the upper wheel disc and the lower wheel disc; a laterally open emitting port is formed in the bottom end of each emitting bin; the intermediate rotating shaft is connected with a rotating motor through transmission gear pairs; shifting pieces are arranged at the emitting ports and are connected onto a rotating shaft of an emitting motor; artificial honeycombs are accommodated in the emitting bins, and a connecting wire is arranged between every two artificial honeycombs. The trichogramma dispenser is loaded on a plant-protection UAV (unmanned aerial vehicle), rapid and accurate dispensing can be realized, the dispensing success rate can be remarkably increased, and the control effect can be remarkably improved.

The present invention uses fresh water as farming environment, according to the basic requirement for growth of salmon the farming water source, water quality condition, stocking density and bait matching proportion are defined to make culture, at the same time the fish pond, subsider, filtering pool, refrigeration equipment, water pump and water collecting tank are formed into a semi-closed circulation farming system, and in the circulation the problems of discharging sewage, filtering and disinfection, temp. regulation, water supply and aeration also can be resolved.

The invention provides a preparation method of hydrogel porous microspheres. The preparation method comprises the following steps: a, a hydrogel material, a buffer solution and a photoinitiator are mixed to obtain a hydrogel solution, and an oily material is mixed with a surfactant to obtain an oily solution; b, a first container is partially nested in a second container, the inner diameter of theinlet end of the first container is larger than the inner diameter of the outlet end of the first container, and the inner diameter of the outlet end of the first container is smaller than the innerdiameter of the second container; the hydrogel solution is injected into the first container, the oily material is injected into the intersection of the first container and the second container, and the oily solution and the hydrogel solution form water-in-oil droplets under the action of a flowing shear force; c, ultraviolet irradiation is performed on the water-in-oil droplets, and crosslinkingis performed to obtain hydrogel microspheres; and d, freezing and freeze-drying are performed on the hydrogel microspheres to obtain the hydrogel porous microspheres. According to the invention, uniform and stable hydrogel porous microspheres are obtained by utilizing a micro-fluidic technology.

The invention discloses a method for planting ramie in middle-level heavy metal contaminated soils. The method comprises the following steps: A, selecting a specific variety of ramie with high resistance against heavy metal contamination and cultivating strong ramie seedlings by using a young shoot cottage propagation technique; B, constructing a ramie garden and applying a passivator to reduce the activity of heavy metal in soils; C, transplanting in right time and carrying out rational close planting; D, scientifically carrying out cross dressing and cracking stems in right time; and E, preventing and controlling insect disease prevention in time and strengthening winter cultivation management of the garden. Practical results show that the yields of the newly planted ramie garden in the current year and the next year are respectively 75.1-78.4kg / mu and 88.8-91.7kg / mu which are the same as or even higher than those of the newly planted ramie garden with clean soils at the same term; moreover, the heavy metal content of raw ramie can be controlled in a range specified in related standard, and the safe and efficient agricultural utilization of middle-level heavy metal contaminated soils is realized. The method is simple and convenient in technique and easy to implement; moreover, the effect of the method is even higher if applied to the mild heavy metal contaminated soils. The method has a broad application prospect in mass areas with heavy metal contaminated soils.

The invention discloses a soil testing and formulated fertilization method for use in environment-friendly cultivation of cucumber. The method comprises the following steps: detecting the soil of a place of origin as well as the contents of organic matters, alkali-hydrolyzable nitrogen, rapidly available phosphorus and rapidly available potassium contained in organic fertilizers; detecting target yield, reasonably selecting the utilization ratio of each nutrient in soil during seasonable production of cucumber, and selecting the utilization ratio of each nutrient in applied fertilizers during seasonable production of cucumber; determining the absorption of each known major nutrient by cucumber; selecting fertilizers according to the pH value of soil and the fertilizer needing characteristics of crops; calculating and determining the needed amounts of a main fertilizer and an auxiliary fertilizer; determining a formulated fertilization scheme; and determining a fertilization method. The calculation of the formulated fertilization amount is more accurate and more reliable than that in the prior art; by considering the types and characteristics of varieties, the target yield is more consistent with practical situations; the nutrient amount of soil is calculated accurately and reliably; the fertilizers are selected under the full consideration of the soil acidity and alkalinity as well as the requirement of cucumber on fertilizer characteristics; by adopting the fertilization method, labor force is reduced, and the production cost is lowered.

The invention discloses a method for grafting wild apricot and plum at mountainous regions and a cultivation management technology. The method comprises the step of cleft grafting or bark grafting; cleft grafting, before the 5days of the wild apricot blossoms, sawing off the wild apricot, flatly cutting a sawing opening, ear grafting, tightly fastening with a plastic piece, covering a plastic bags, and tightly fastening under a grafting opening; bark grafting, when bark is separated from the tree, sawing off the parental stock, flatly cutting a cross section, ear grafting, covering a plastic bag and tightly fastening under a grafting opening; and managing after grafting, examining survival rate, putting into bags at proper time, erasing croth, piling and binding to be prevent from folding,pruning and shaping, removing weeds, digging a cistern to store water, and executing by means of insect prevention and hail prevention. The method and the technology is reasonable, is easily grasped,has high survival rate, play the advantage of the two trees by grafting, has good harvest at arid hilly regions, and can benefit for many years with one year investment, thereby being a good way forcreating income for famers in the arid northern China.

The invention discloses a sandy soil conditioner used in sandy soil. The sandy soil conditioner comprises the following raw materials in parts by weight: 650-750 parts of organic fertilizer, 220-280 parts of peat soil and 30-70 parts of a water-retaining agent. The sandy soil conditioner solves the problems of the sandy soil such as rapid water evaporation, shortage of organic matters in the soiland weak soil fertility.

The present invention relates to a plantation method of millettia speciosa champ, and belongs to the agriculture plantation field. The plantation method specifically comprises the following steps of selecting the land suitable for planting the millettia speciosa champ, applying base fertilizer prepared by mixing self-made farm manure, plant ashes and quicklime according to a certain ratio, and plowing and bedding, wherein the self-made farm manure is prepared by mixing millettia speciosa champ litters, corn stalks, wheat straws, coconut shells and soybean meal with pig, cattle and sheep manure and night soil; then selecting millettia speciosa champ seedlings, transplanting the millettia speciosa champ seedlings in the land, and covering a membrane; and fertilizing once a year, timely cutting tails and cutting flowers, paying attention to insect disease prevention, and harvesting the millettia speciosa champ after cultivating the millettia speciosa champ for three years. The plantation method is simple in operation and high in practicality, and is suitable for large scale systematic breeding, diseases and pests can be reduced and prevented, the plant survival rate is high, growth speed is fast, and production cost is low.

A method for cleaning the shellfish living in beach features that the living microalgae are proportionally added to the seawater in which said shellfish is temporarily cultured for inducing the shellfish to release the silt from their body at 10-28 deg.C for 4-24 hrs.

The invention discloses a high-yield cultivation method for plums. The method includes the steps of 1. selection and preparation of land, wherein deep, loose and fertile soil with good drainage is selected; 2. seedling selection, wherein high-quality saplings of pure varieties, having strong roots and full sprouts and being free of pest and disease damage, are selected; 3. plantation, wherein the saplings are planted in planting pits, and then watered and covered with soil, and 100-120 saplings are planted per mu; 4. nutrient and water management, wherein young trees of 1-2 years are fertilized once a month from sprouting to seven months, base fertilizer is applied once from nine months to ten months, and full-grown trees of over three years are fertilized three times a year; 5. pruning, wherein the natural open centre shape is adopted for pruning in the pruning modes of extending pruning and shoot thinning; 6. field management, wherein pit enlarging, deep tillage, and turning over of green manure are conducted every autumn, and root distribution is improved in a deepened mode. The high-yield cultivation method is more suitable for plum growth, lays a solid foundation for later growth of plums, and increases yield. Plums are good in quality and wonderful in taste, and economic benefit is improved.

The invention discloses a pear tree water culturing method, belonging to the technical field of plant production. The method comprises the following four steps of: (1) selecting plantlets: selecting one-year or two-year pear graftings in production which are uniform in size and growth; (2) determining the formula of a water culturing nutrient solution consisting of 6mM of KNO3, 4mM of Ca(NO3)2, 2mM of NH4H2PO4, 1mM of MgSO4, 50muM of KCl, 10muM of H3BO3, 2muM of MnSO4, 2muM of ZnSO4, 0.5muM of CuSO4, 0.065muM (NH4)6Mo7O24 and 50muM of Fe-EDTA; (3) selecting a water culturing container; and (4) ventilating and changing the nutrient solution during the culture. The pear tree subjected to soilless culture of the method has the advantages of fast root system growing speed, good growth, high survival rate, healthy tree growth, and the like.

The invnetion discloses a distributed fiber sensing system and technical scheme and provides a high earth-rockfill dam deformation monitoring fiber sensing technology and system. Integrated online remote measurement of three components of internal deformation of all particulate dam material areas (including upstream rockfills of a core-wall dam) of a core-wall earth-rockfill dam and a concrete-faced dam, panel dam perimeter joint-vertical joint deformation, panel flexibility-disengagement joints and concrete-faced bidirectional strain can be realized; large-scope time-space full coverage is realized; three uniquely molded fiber packaging structures are provided, a three-dimensional Euler elastic beam is formed, and force-light direct conversion of fibers is realized; three arrangement modes of the sensing system in a horizontal direction, a vertical direction and a dam slope direction, an integrated application method and a fiber laying technology are brought forward, integration of multiple functions of fiber monitoring is realized, construction is facilitated, the fiber survival rate is guaranteed, and an engineering application value is demonstrated. An optical demodulation instrument employs a high-precision PPP-BOTDA or Brillouin-Rayleigh synthesis system, can realize multiple purposes through one machine with other monitoring projects including seepage and the like and facilitates updating and upgrading of a safety monitoring system.

The present invention relates to ornamental plant cultivating technology, and provides quick production process of potted plum blossom comprising selecting variety, propagating stock, grafting, grafted seedling management and post management. Plum blossom variety with short sapling stage and early initial blossoming stage is selected as scion to graft with high quality green plum variety. By means of promoting vegetative growth in the early stage and inhibiting vegetative growth in the latter stage, the present invention can short the time before the initial blossoming stage and prolonged blossoming period. The present invention has complete production period of potted plum blossom as short as two years, and thus low cost and less development risk.