1646 results about "Nutrient solution" patented technology

The invention relates to the technical field of microbial culture, and provides a culture device for agricultural microbial agent production and a use method, the culture device comprises a culture box, and the top of the culture box is hermetically and detachably provided with a box cover. According to the device, the air pump is controlled by the controller to be started, so that the air pressure in the closed space is increased, the air passes through the non-woven fabric and the polymer microporous membrane, more tiny bubbles can be generated under the action of the polymer microporous membrane, a nutrient solution flows and is mixed, and the stirring effect on the nutrient solution is achieved; a nutrient solution in the incubator flows into the culture dish through the liquid discharge pipe, so that the stirring of the nutrient solution and the injection of the nutrient solution into the culture dish to be mixed with a microbial inoculum can be completed without using more structural components, the operation is simple, and the condition of pollution caused by improper cleaning is avoided; therefore, the subsequent microbial agent culture effect is improved.

The invention relates to the technical field of agriculture, in particular to a plant nutrient solution for saline-alkali soil improvement and a preparation method thereof. The invention relates to a preparation method of a plant nutrient solution for improving saline-alkali soil. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides and acid modified calcium-based montmorillonite; preparing humic acid chelated calcium magnesium powder; preparing a binary compound; and preparing the plant nutrient solution. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides from calcium nitrate tetrahydrate and aluminum nitrate nonahydrate, carrying out acid modification on calcium-based montmorillonite by using dilute sulphuric acid, purifying humic acid, and mixing with calcium chloride and magnesium chloride hexahydrate to prepare humic acid chelated calcium magnesium powder. Finally, the three components are added into pig excrement fermentation liquor to prepare a plant nutrient solution, an adsorption-replacement-leaching closed loop can be formed, the desalination and alkali reduction efficiency is remarkably improved, the soil structure is improved, the effect of synergistically improving the saline-alkali soil is achieved, and therefore plant growth is promoted.

The invention relates to the technical field of cultivation and planting devices, and discloses a three-dimensional cultivation and planting device with an atomization structure, the three-dimensional cultivation and planting device comprises a rack and a rotating column, the rotating column is rotatably connected to the inner wall of the right side of the rack through a bearing, a spur gear is fixedly connected to the rotating column, and a motor is fixedly connected to the outer wall of the left side of the rack; a spur gear is arranged on the rack and makes contact with a toothed chain, a hinge rod is fixedly connected to the outer wall of the side face of the toothed chain, an adjusting mechanism is arranged on the rack and comprises an auxiliary mechanism, the adjusting mechanism comprises an arc-shaped plate, and the arc-shaped plate is hinged to the outer wall of the side face of the hinge rod. In the invention, a nutrient solution is converted into vaporific particles through the atomizing nozzle frame and is directly sprayed to the root system of a plant, so that the root system efficiently absorbs water, nutrients and oxygen in a suspended state, a matrix or soil is not needed, the propagation of soil diseases and insect pests is reduced, the nutrient utilization rate is also improved, and healthy growth and high yield of the plant are facilitated.

The invention discloses a sulfur-oxidizing bacterium screening and enriching nutrient solution, a sulfur-oxidizing bacterium enriching method and a deodorizing method. The sulfur-oxidizing bacterium screening and enriching nutrient solution comprises 1.0 g.L <-1 > of K2HPO4, 0.5 g.L <-1 > of NaHCO3, 0.05 g.L <-1 > of NH4Cl, 0.225 g.L <-1 > of Na2S. 9H2O and 0.001 g.L <-1 > of trace elements, wherein the trace elements comprise 0.5 g.L <-1 > of EDTA (Ethylene Diamine Tetraacetic Acid), 0.01 g.L <-1 > of (NH4) 6Mo7O24. 4H2O, 0.04 g.L <-1 > of ZnSO4. 7H2O, 0.03 g.L <-1 > of MnCl2. 7H2O, 0.02 g.L <-1 > of CuSO4. 5H2O The deodorization performance of the municipal sewage treatment plant is improved through synchronous desulfurization and deamination of the acidophilic sulfur-oxidizing bacteria, and compared with a traditional deodorization process, the synchronous desulfurization and deamination process can enrich high-abundance sulfur-oxidizing bacteria in a short time and shows higher ammonia gas and hydrogen sulfide removal capacity.

The invention discloses a coal bed gas biological yield increase effect dynamic monitoring and evaluation method which comprises the following steps: arranging a multi-parameter sensor in a target coal bed gas well site, and collecting background data before bacterium injection; injecting a microbial bacterial solution and a nutrient solution into the coal seam according to the experimental design, and recording parameter information in the injection process; periodically collecting a gas production sample, and analyzing gas components; analyzing microbial community structure and abundance change in the water sample; combining the gas generation rate, the isotope characteristics and the microflora analysis result to identify a gas production path and calibrate a key functional flora; and constructing a mathematical model containing microbial activity, coal quality conversion and gas production efficiency, forming an evaluation index system, and outputting field process optimization suggestions based on the model. According to the method, a scientific basis is provided for dynamic optimization of the yield increasing process, and compared with a traditional laboratory method, the method can achieve systematic analysis of the in-situ microorganism process and quantitative evaluation of the gas production effect, and has good field adaptability and popularization value.

The invention provides a method for optimizing the proportion of industrial waste residues and a microbial composite curing agent, and belongs to the technical field of building materials.The method comprises the steps that the industrial waste residues are ground into superfine powder with the specific surface area of 350-450 m < 2 > / kg, meanwhile, bacillus is cultured at the temperature of 30-35 DEG C until the concentration of bacillus is 108-109 / mL, and a mixture is obtained; a pH meter and a dissolved oxygen meter are adopted to monitor the state of a microbial solution in real time, the aeration intensity and nutrient solution supplement are automatically adjusted according to critical value judgment, a composite curing agent is prepared according to the calculation proportion, the interface bonding strength and compressive strength are tested, and the curing effect is evaluated through a strength development equation and a durability prediction equation. According to the comprehensive performance indexes, the matching parameters are dynamically adjusted, the testing and adjusting process is repeated until the results are stabilized in the target performance interval for five continuous times, the final matching is determined, and the technical problem that the matching of the industrial waste residues and the microbial composite curing agent is difficult to accurately optimize is solved.

The invention discloses a deep-sea microorganism in-situ directional culture device, and relates to the technical field of deep-sea equipment, the deep-sea microorganism in-situ directional culture device comprises a microorganism culture cabin, a nutrient solution storage module, a bidirectional flow path assembly, an intelligent control module, a support assembly and the like; wherein the microorganism culture cabin consists of a flow channel, a flow choking block, a culture chamber, a movable small plate, a cabin cover and a sealing element, and the flow channel and the flow choking block form a structure based on a Tesla valve principle; through a bidirectional flow path assembly composed of a deep-sea high-precision metering pump, a deep-sea flow guide pump and the like, a nutrient substrate is injected in a reverse high-resistance mode to achieve efficient mixing, and seawater flows in a forward low-resistance mode to achieve environmental substance exchange; the deep-sea multi-channel switching valve is independently connected with the multiple sets of nutrient solution storage modules and the microorganism culture cabin, so that culture under various environmental conditions is realized; based on sensor data calculation and analysis, the starting and stopping time of the pump is intelligently controlled, the concentration of nutrient substrates in the microorganism culture cabin and the stability of environmental parameters are effectively guaranteed, and therefore in-situ culture deep-sea microorganism communities are controllable.

The invention discloses a multi-dimensional data monitoring and collaborative management and control method and system for a plant intelligent factory, and belongs to the technical field of collaborative control, and the method specifically comprises the steps: collecting multi-dimensional data of the plant intelligent factory in real time, the multi-dimensional data comprising plant physiological parameters, environmental factor parameters, nutrient solution parameters and equipment and operation state parameters, and based on the multi-dimensional data, constructing a dynamic multi-level causal association model among equipment, plant physiology, environment and operation, identifying a potential cooperative influence path in an abnormal state, and automatically performing cross-level management and control when an abnormality is detected or a growth process is predicted to deviate from a trend. The cross-level management and control instructions are distributed to an equipment level, a cultivation unit level and a workshop level according to levels, and multi-link linkage regulation and control are carried out on the intelligent plant factory; according to the method, by establishing a causal association and path cooperation mechanism, regulation and control are more accurate, flexible and adaptive, and the stability, resource utilization rate and intelligent level of plant production are effectively improved.

The invention discloses a fermentation process of citric acid residues, and relates to the technical field of organic acid fermentation. The fermentation process comprises the following steps: mixing and crushing citric acid residues and wheat bran according to a mass ratio of (4-5): 1 to obtain a mixed material; spraying an ammonia water solution, a magnesium sulfate solution and a zinc sulfate solution into the mixed material, adjusting the pH value to 5.0-5.5, sterilizing, adding a urea solution and a basic nutrient solution, and uniformly mixing to obtain slurry; aspergillus niger and saccharomycopsis fibuligera are mixed according to the spore number ratio of 100: 1, then sterile water is added, the mixture is stirred to be uniform, and bacterial liquid with the spore concentration of 1 * 10 < 7 >-5 * 10 < 7 > / mL is obtained; spraying the bacterial liquid to the surface of the slurry, performing aerobic culture for 40-48 hours under the conditions that the temperature is 30-35 DEG C and the humidity is 80-85%, then cooling to 25-30 DEG C, reducing the humidity to 70-75%, spraying methanol at the same time, and performing sealed culture for 5-6 days; performing drying; and the acid yield and the nutrient substance yield in the finally obtained fermentation product are obviously improved.

The invention discloses a nutrient solution capable of increasing vitamin C of plants and a preparation method of the nutrient solution, and relates to the technical field of plant nutrition and fertilizers. The nutrient solution contains additives such as 2-keto-L-gulonic acid or 2-keto-L-gulonic acid salt and the like. According to the invention, 2-keto-L-gulonic acid or 2-keto-L-gulonic acid sodium or 2-keto-L-gulonic acid potassium and the like are used as core raw materials of the nutrient solution for plants, and are compounded with basic nutrient raw materials and additives required by the plants to prepare the plant nutrient solution and the composite nutrient solution. The 2-keto-L-gulonic acid and the 2-keto-L-gulonate in the plant body can be catalyzed and converted into the vitamin C, so that the content of the vitamin C in the tree body is remarkably increased.

The present application belongs to the technical field of medical care, and particularly relates to a nutrient solution delivery device for assisting in nursing of esophageal cancer patients, which comprises a mounting seat, the inside of the mounting seat is provided with a fixing part, the fixing part can extrude and fix the nutrient bag placed inside to avoid the nutrient bag from deviating during the operation of the equipment; the inside of the fixing part is provided with a driving part, the driving part moves back and forth inside the mounting seat, the driving part can extrude the nutrient solution inside the nutrient bag to flow during the back and forth movement; the inside of the driving part is further provided with a stirring part which rotates, the stirring part can rotate by using the power of the back and forth movement of the driving part, and the rotation of the stirring part further promotes the flow of the nutrient solution inside the nutrient bag; the inside of the mounting seat is provided with a delivery part. The present application uniformly heats the nutrient solution and delivers it into the gastrointestinal tract of the patient, the warm nutrient solution can promote blood circulation and increase the peristalsis of the intestinal tract, which is helpful to improve the digestion and absorption rate of the nutrient components.

The invention discloses a high-yield gastrodia elata planting method based on Tilia brachypoda fungus material optimization and seed ramie stress resistance activation. According to the high-yield gastrodia elata planting method based on Tilia brachypoda fungus material optimization and seed ramie stress resistance activation, yield increase and quality improvement are achieved through fungus material composite strengthening treatment and a composite strain synergistic inoculation technology. The method comprises the following steps: (1) fermenting a tilia brachypoda substrate by lactobacillus plantarum and soaking in a nano-composite nutrient solution to form a high-activity bacterial material; (2) nitrogen-fixing bacteria, disease-resistant actinomycetes and armillaria mellea are mixed and inoculated according to the proportion of 3: 1: 1, nitrogen supply is improved, and the occurrence rate of black rot is reduced; 3) activating a GASA stress-resistant gene of the seed hemp through a pulsed electric field (5 kV / cm, 10 microseconds), and enabling the germination rate to reach 88.5% in combination with a calcium signal channel strengthening technology; according to the method, the yield per mu of gastrodia elata is increased by 30%-40%, the gastrodin content is increased by 30% or above, the chemical pesticide dosage is reduced by 55%, the strain passage purity is stable, the method is suitable for large-scale planting in multiple climate areas, and an innovative solution is provided for green production of traditional Chinese medicinal materials.

The invention relates to the technical field of plant planting, particularly discloses integrated landscape type planting equipment and a cultivation method, and solves the problems of more resource and energy waste and insufficient energy conservation of planting equipment in the prior art. The planting equipment comprises a three-dimensional planting assembly used for allowing plants to grow, an irrigation pipeline system used for allowing liquid for plant irrigation to pass through and a liquid supply system used for blending and supplying the liquid needed by the plants, and the liquid supply system is connected with the three-dimensional planting assembly. The irrigation pipeline system is connected between the liquid supply system and the three-dimensional planting assembly. The planting cultivation method comprises the steps of substrate selection, water source preparation, sensor calibration, plant seed broadcast sowing, soil covering, controller starting, automatic monitoring and environmental parameter adjustment, nutrient solution blending and adding into a water tank and the like. The device can be applied to household planting equipment or industrial batch planting equipment, and is energy-saving, efficient and environment-friendly.

The invention discloses a grouting anchor rod suitable for microorganism induced mineralization reinforcement and an application method of the grouting anchor rod. The grouting anchor rod comprises a sleeve, an anchor head, a hollow stop-grouting plug, an arch-shaped base plate and a nut, and the anchor head is detachably installed at the anchoring end of the sleeve. Through combination of the sleeve and the hollow anchor rod, grouting channels which work independently and do not interfere with each other are formed, grouting materials and biological nutrient solutions containing urease-producing flora are injected into drill holes, pore water around anchor holes and the injected nutrient solutions are used for inducing calcium carbonate to precipitate in an anchoring area, CaCO3 crystals are deposited on an anchoring interface, and the anchoring effect is achieved. Pores are filled, the bonding strength of slurry and rock soil is improved, an anchoring layer is effectively prevented from being stripped, and the interface bonding performance is enhanced; a microorganism induced mineralization technology and an anchor rod physical reinforcement system are combined, and structure-biology-environment multi-scale collaborative reinforcement is achieved; and macrostructure stability and microcosmic particle consolidation are unified, and the enhanced, lasting, stable and eco-friendly slope supporting effect is achieved.

The invention discloses an insect antibacterial peptide nutrient solution as well as a preparation method and application thereof, and belongs to the technical field of biology. Insect protein (fly maggot powder / hermetia illucens) and plant fiber (bran) are subjected to enzymolysis and then subjected to a pH gradient chelation process (5.0-7.0-8.5), metal ions (Fe < 2 + > / Mn < 2 + > / Zn < 2 + >) are added in stages for chelation, the chelation degree is larger than or equal to 91.4%, lentinan and alginate oligosaccharide are added for synergistic interaction, and finally the insect antibacterial peptide nutrient solution is obtained. Experiments prove that after the insect antibacterial peptide nutrient solution prepared by the invention is used for carrying out root irrigation treatment on plants, tomato yellow leaf curl virus or tomato spotted wilt virus can be remarkably prevented and treated, and the insect antibacterial peptide nutrient solution has high efficiency and persistence and conforms to the development direction of green plant protection.

The invention relates to the technical field of flammulina velutipes planting, in particular to a flammulina velutipes culture method and compost, which comprises the following steps: S1, preparing purple sweet potato water; the preparation method comprises the following steps: washing fresh purple sweet potatoes, mixing with water in proportion, boiling, cooling, filtering, and taking filtrate as purple sweet potato water for later use; s2, preparing a culture material; the raw materials comprise corncobs, rice bran, bran, cottonseed hulls, sugar beet pulp, soybean hulls, corn flour, brewer's grains, calcium carbonate and shellfish fossils. The preparation method comprises the following steps: weighing solid raw materials in proportion, stirring the raw materials in a stirrer for 10 minutes to obtain a mixture, uniformly mixing the mixture, adding the purple sweet potato water prepared in the step S1, fully stirring the mixture until the mixture is uniformly mixed, and controlling the water content of a final culture material to be 62-68% to obtain the culture medium. The purple sweet potato water is used for completely replacing tap water to serve as a culture material component, the purple sweet potato water is not only a solvent, but also a natural nutrient solution rich in anthocyanin, polysaccharide, vitamins and mineral substances, flammulina velutipes hyphae can absorb and convert the substances, and the anthocyanin content in sporocarp is remarkably increased.

The invention provides a nursing device for qiongzhuea tumidinoda young forest tending, and relates to the technical field of young forest tending. The moving mechanism is arranged on the annular guide rail; the adjusting mechanism is arranged on the moving mechanism, and the adjusting mechanism is connected with a spraying mechanism and a camera; the driving controller is arranged on the moving mechanism; the liquid supply mechanism is arranged on the annular frame, and the spraying mechanism is detachably connected with the liquid supply mechanism; the power supply mechanism is arranged on the annular frame and is electrically connected with the driving controller; the central controller is connected with a plurality of monitoring mechanisms, and the monitoring mechanisms are arranged on the two sides of the annular frame. The use efficiency of water, a nutrient solution and liquid medicine is greatly improved, resource waste and environmental pollution are reduced, operation can be carried out on complex terrains, precise, automatic and intelligent tending operation is achieved, and the labor cost and the labor intensity are greatly reduced.

The utility model discloses a seedling raising device for saffron crocus planting, which belongs to the technical field of saffron crocus planting and comprises a base, a seedling raising pot is fixedly mounted on the upper surface of the base, a solution tank is fixedly mounted on the side wall of the base through a bottom plate, an expansion component is arranged on the side wall of the seedling raising pot, and the solution tank is fixedly mounted on the bottom plate. A stirring assembly is arranged in the solution tank; according to the seedling raising device, by arranging the expanding assembly, a driving motor on a fixing plate and a water pump in a solution box are started at the moment, the driving motor drives a reciprocating lead screw to rotate on a supporting plate at the moment, meanwhile, a threaded sleeve drives a movable frame to do synchronous reciprocating motion, and the movable frame drives a spray head to do reciprocating motion on a seedling raising pot; the spraying area of the spray head is enlarged through the moving frame, the fertilizer nutrient solution can be evenly distributed on the whole seedling raising pot area through the moving spray head, seedlings in the seedling raising pot can effectively absorb the fertilizer nutrient solution, healthy growth of the seedlings is facilitated, and the cultivation quality of the seedling raising pot is improved.

The invention discloses a fruit and vegetable grafting wound healing nutrient solution containing polysaccharide complex enzyme and a preparation method, belongs to the technical field of agricultural biochemical preparations, and aims to solve the technical problems of low removal efficiency of necrotic tissues at grafting wounds and high risk of microbial infection. According to the technical scheme, the nutrient solution is characterized by being prepared from the following raw material components in parts by weight: 0.3 to 0.8 part of polysaccharide, 1 to 5 parts of cellulase, 0.5 to 2.5 parts of pectinase, 1 to 5 parts of glycerol and 90 to 100 parts of water. Wherein the pH value of the nutrient solution is adjusted to 5.0-6.5 by using a phosphate buffer agent, the polysaccharide is composed of chitosan and sodium alginate, the mass ratio of the chitosan to the sodium alginate is 1: 0.5-1: 2, the activity of cellulase in the nutrient solution is 100-500 U / mL, and the activity of pectinase in the nutrient solution is 50-250 U / mL. The nutrient solution is mainly used for promoting fruit and vegetable grafting wound healing, and application verifies that the nutrient solution can effectively improve wound healing quality and reduce infection risk in the grafting process of fruits and vegetables such as cucumbers, eggplants, peppers, tomatoes, litchis and oranges, and has a good application effect.

The invention relates to the technical field of ecological restoration of a coal mine in an arid region, and discloses an ecological restoration method for a waste dump of the coal mine in the arid region. According to the method, a multi-parameter environment sensing model containing soil humidity, soil components, surface temperature, vegetation indexes and regional gradient data is established, and whether ecological restoration is started or not is judged according to the model. And selecting at least one of water, a nutrient solution or a soil conditioner as a restoration medium, and quantitatively conveying the restoration medium to a predetermined area through an independent conveying path isolated from natural rainfall. The recovery area is composed of an independently-arranged conveying pipe network, the water flow direction is dynamically judged according to the gradient of the area, and natural diffusion advantage position pipe section conveying is preferentially started. During conveying, the operation time period is determined according to the medium absorption rate, intermittent conveying is executed on the selected pipe section, and the average flow in each cycle is controlled not to exceed the system reserve capacity. And when the reserve is insufficient, conveying is suspended, operation information is recorded, remaining operation continues to be completed after the reserve is recovered, and closed-loop recovery control is achieved.

The present invention discloses a method for baking tobacco leaves on the upper part of a white eel mud tobacco field. The method comprises the following steps: spraying a nutrient solution on the leaves before harvesting, appropriately reducing the maturity of tobacco leaves during harvesting, appropriately reducing the amount of tobacco leaves to be woven, reducing the density of tobacco leaves to be loaded on a kang, adopting a baking technology of high temperature main yellowing, early dehumidification in the later stage of yellowing, and gradually reducing the wet-bulb temperature during baking, reducing the yellowing degree of tobacco leaves during switching to another fire, adopting a low temperature, low humidity, slow temperature rise baking technology for color fixing during the color fixing period, gradually increasing the wet-bulb temperature in the early stage of color fixing, and adopting a fast drying baking technology in the dry-stem period. By adopting the method for baking tobacco leaves on the upper part of a white eel mud tobacco field, the difficulty of color fixing of the upper tobacco leaves can be effectively reduced, the ash on the upper tobacco leaves can be reduced, and the appearance quality and intrinsic quality of the tobacco leaves after baking can be improved.

Disclosed are methods of producing nutrient solutions having unique isotopic fingerprints; methods of producing traceable plants; and methods of identifying the source of a traceable plant that does not rely on expensive artificially separated isotopes. Plants grown with these nutrient solutions will have unique isotopic fingerprints that will be difficult or impossible to counterfeit.

The invention discloses an application method of magnesium hydride in hydroponic seedling hardening of rubber trees, which comprises the following steps: improving Hoagland into a hydroponic nutrient solution, adding magnesium hydride into the nutrient solution, and adjusting the pH value; the method comprises the following steps: selecting rubber tree stable-period test-tube plantlets which meet plant height requirements, have roots, stems and leaves and are pollution-free; and taking out the test-tube plantlet from the test tube, cleaning the culture medium on the root system, soaking with a carbendazim solution, and putting into a nutrient solution for hydroponic seedling hardening. According to the invention, 5-20mg of magnesium hydride is added into each liter of nutrient solution, so that the solution is in a hydrogen-rich state, the seedling hardening survival rate is obviously improved, and the plant quality is improved. Compared with a control group, the optimal concentration has the advantages that the seedling hardening survival rate is obviously improved, and the seedling hardening survival rates under the temperature conditions of 25 DEG C and 20 DEG C are respectively improved by 30% and 11%; the plant height and the stem diameter are respectively increased by 11.86% and 13.33% at the temperature of 25 DEG C, and reach an extremely remarkable level. The method provides support for improvement of a rubber tree seedling raising technology.

The invention discloses an Aralia chinensis root system development optimization aeroponic cultivation control system and method, and particularly relates to the technical field of Aralia chinensis root system cultivation, the Aralia chinensis root system development optimization aeroponic cultivation control system comprises an aeroponic cultivation box, a high pressure output module, an atomization device, an oxygen supply module, a nutrient solution supply module, a multi-dimensional monitoring module and a control module; aralia root systems are placed in the grooves. And the high-voltage output module is used for providing stable high-voltage power. The nutrient solution is pushed by the high-pressure output module to form a dynamic flowing fog environment, and is matched with easily-adsorbed fog drops refined by the ultrasonic atomizer, so that the nutrient solution is more fully contacted with the root system under the cooperation of the oxygen supply module and the nutrient solution supply module, and the nutrient solution is aeroponically cultured in the whole process, is good in dissolved oxygen content, flows without corrosion, and can effectively promote the growth of the root system; in the growth accelerating link, seedling raising in spring only needs more than 20 days to complete root promoting and germination, compared with a traditional mode, the seedling raising period is remarkably shortened, and meanwhile the rooting rate and the germination rate are greatly increased.

The utility model discloses a hydroponic device convenient to control nutrition proportion, which comprises a bottom frame, a hydroponic box is fixedly mounted on the bottom frame, a nutrition box is fixedly mounted at one end, far away from the hydroponic box, of the bottom frame, and an injection assembly is arranged on the nutrition box. The injection assembly comprises liquid inlet channels formed in the nutrition box at equal intervals, quantitative pipes are fixedly installed at the top ends of the liquid inlet channels, scale marks are arranged on the outer surfaces of the quantitative pipes, nutrients are put into the quantitative pipes according to a certain proportion, and due to the arrangement of the scale marks, the nutrients can be injected into the quantitative pipes according to a certain proportion. The nutrient solution can be blended according to a certain proportion, the nutrient proportion is controlled, the difference of the mixing proportion of the nutrient solutions can be effectively reduced, the nutrient solution can effectively supplement hydroponic crops, and growth and development of the hydroponic crops are further promoted.

The invention relates to the technical field of soil improvement and microorganisms, and discloses a preparation process of a porous activated carbon soil conditioner loaded with microbial flora, which comprises the following steps: firstly, performing high-temperature activation and acid-base modification on a biomass raw material to prepare a porous activated carbon carrier, and dipping in a nutrient solution to preset a slow-release nutrient substrate; secondly, adopting a step-by-step sequential loading process, firstly loading the bacillus subtilis subjected to stress resistance domestication on a carrier through electrostatic adsorption, and performing activation colonization culture to form a stable pioneer biological membrane; then, on the basis of the biological membrane, phosphate solubilizing bacteria, potassium solubilizing bacteria and antagonistic bacteria are loaded in sequence; finally, the loaded composite carrier is subjected to microcapsule embedding and low-temperature drying treatment, and the porous activated carbon soil conditioner is obtained. According to the modifier prepared by the invention, through ordered loading and multiple protection, the problem of strain competition is solved, the high survival rate of flora is ensured, and the improvement effect is stable and long-acting.

The invention discloses a multi-stage biological deodorization system with double bacterium areas. The system comprises N circulating units formed by sequentially arranging desulfurization biological reaction zones and denitrification biological reaction zones according to the airflow direction, wherein N is greater than or equal to 1; the desulfurization biological reaction zone comprises a biological filler layer I, a desulfurization strain and a nutrient solution I, and the denitrification biological reaction zone comprises a biological filler layer II, a denitrification strain and a nutrient solution II; wherein the biological filler layer I and the biological filler layer II are respectively arranged at the middle parts of the desulfurization biological reaction area and the denitrification biological reaction area, the volume ratio is 1: 2, and waste gas enters from the bottom end of the system and flows back in the system. The biological deodorization system can obviously improve the deodorization efficiency and the system stability.

The nutrient solution conveying device for millet processing comprises a bottom frame, a screening table is arranged above the bottom frame, a plurality of supporting springs are arranged between the screening table and the bottom frame, a screening cavity is formed in the inner side of the screening table, the inner side of the screening cavity is flexibly connected with a screening plate, the inner bottom wall of the screening cavity is obliquely arranged, and the supporting springs are arranged on the screening plate. The screening plate is obliquely arranged, a pesticide spraying box is arranged at the top of one side of the bottom frame, and a nutrient solution conveying mechanism is arranged at the top of the pesticide spraying box. By using the cleaning mechanism, a turbine rotates, the turbine drives an elastic strip, a cleaning arm and a cleaning strip to rotate through a center shaft, the cleaning arm and the cleaning strip can brush a working cavity, a connecting pipe and the inner wall of a first working barrel in the rotating process, water continuously washes the turbine, and the turbine drives a cleaning piece to rotate to brush an inner cavity of a pesticide spraying nozzle; the cavity is prevented from being reduced due to accumulation in the spraying mechanism, and the conveying flow of the nutrient solution is kept stable.

The invention belongs to the technical field of agricultural fertilizers, and particularly relates to a high-efficiency yield-increasing liquid fertilizer containing enzymolysis nereis and a preparation method thereof.The method comprises the steps that the nereis is cleaned and smashed, subjected to freeze-thaw cycle pretreatment and then subjected to enzymolysis through a compound protease preparation containing protease and chitinase under the alkalescence condition, and the liquid fertilizer containing the enzymolysis nereis and the chitinase is obtained; carrying out solid-liquid separation on the obtained enzymatic hydrolysate to obtain enzymatic clam worm liquid; the preparation method comprises the following steps: mixing urea, a phosphorus-potassium fertilizer, trace elements, potassium fulvate and polyaspartic acid in a preparation tank, and then adding an N-carbamoyl-L-glutamic acid-chitosan grafted copolymer and selenocysteine-alginic acid nanoparticles to obtain a nutrient solution; and finally, mixing the enzymolysis nereis solution with the nutrient solution and the plant growth regulator to obtain a finished product. Active substances in the nereis are fully released through a biological enzymolysis technology, the prepared liquid fertilizer has the functions of nutrition supply, physiological regulation and soil improvement, crop growth can be remarkably promoted, the yield can be remarkably increased, and high-value utilization of marine biological resources is achieved.

The invention relates to the field of intelligent regulation and control, and discloses a factory recirculating aquaculture intelligent control method and system fusing multi-source data. The method comprises the following steps: acquiring environmental chemical index data and microbial activity signal data to obtain a comprehensive real-time monitoring data set; if the dynamic change characteristic of the bacterial community structure indicates that the conversion rate is lower than a conversion threshold value, analyzing the coupling influence of an oxygen supply amount index and a nutrient solution proportion index to obtain an optimized adjustment parameter set; adjusting the balance between the nutrient solution dosage index and the buffer agent dosage index, and determining a final regulation and control scheme; according to the stable output value and the adjustment instruction, fusing the dynamic change characteristics of the bacterial community structure, processing real-time feedback circulation, and determining a system stable state index; and updating the bacterial activity model, judging whether the conversion efficiency reaches a target or not, and obtaining an optimized iteration signal. The problems that an existing system is difficult in interactive analysis, low in regulation and control accuracy, weak in data fusion and unstable in conversion efficiency due to state updating lag are solved.