52results about How to "Increase the rate of photosynthesis" patented technology

The invention provides a composite amino acid ecological nutritious agent, which comprises sea weed fermentation liquor, fermentation liquor of animal leftover bits and pieces, trace elements, and biological bacterium. The functions of the agent include stimulating growth, suppressing pathogenic agent and reinforcing immunization.

The invention relates to a method for producing a sargassum liquid fertilizer with sargassum residues. The method comprises the following steps such as mixing of the sargassum residues and water, pH value adjustment of concentrated hydrochloric acid, enzymolysis and separation of complex enzyme and the like. According to the method, the bioactivator and part of nutrient substances remained in the sargassum residues are further extracted for preparing a liquid fertilizer, so that the problem of seawood processing enterprises that the sargassum residues contaminate the environment is solved, the sargassum residues are recycled, the economic benefit of the enterprises is improved, and a new way for comprehensive utilization of sargassum residues is developed. Furthermore, the sargassum liquid fertilizer can improve the photosynthesis speed of vegetable crops, can promote the growth of the vegetables, and improves the output of the vegetable crops obviously.

The invention discloses a compound chitin oligosaccharide foliage fertilizer contained chitin oligosaccharide, nutritive material and microelement special for plant, which is nontoxic and non-pollution. The product can accelerates the photosynthesis, promotes root growth, increases sugar, flaver and color of plant, improves disease-resistant ability of plant and fruit quality, and decrease pesticide residue.

The invention relates to a plant cultivation system which comprises an enclosed growing region, a central control system and a sub-control system, wherein the growing region is independent from outside and utilizes natural light sources, the central control system controls the environment in the growing region and the sub-control system is connected with the central control system. The sub-control system comprises a light source detection system, an artificial light source system, a light shading system, a carbon dioxide system, an oxygen system, an irrigation water system, a temperature system and a humidity system. By means of scientific control of the growing environment of plants, the plant production is enabled to be improved.

The invention discloses a urea-ammonium mixed nitrogen fertilizer and a production method thereof, wherein the urea-ammonium mixed nitrogen fertilizer contains the raw material components by weight: 300-600 parts of urea ammonium nitrate solution, 180-400 parts of ammonium chloride, 20-250 parts of ammonium sulfate, 10-100 parts of ammonium bicarbonate, 20-100 parts of bentonite, 20-80 parts of potassium nitrohumate, 10-50 parts of boric acid, 0.2-0.7 parts of diethyl aminoethyl hexanoate, 1-6 parts of liquid anti-blocking agent, and 0.5-1 part of additive. The urea-ammonium mixed nitrogen fertilizer provided by the invention has advantages of high fertilizer utilization rate, high crop yield, soil improvement and fertility betterment, low cost, simple technology, safety application and high benefit.

The invention discloses a preparation method of a leaf vegetable nano leaf fertilizer. According to the method, raw materials are smashed and decomposed into nano-scale materials through high-temperature stirring, electron beam irradiation and ultrasonic treatment based on lignin containing a net structure and active radicals in papermaking black liquid, and the adsorptive property of the lignin is increased, so that a phosphate fertilizer, a nitrogen fertilizer, a potash fertilizer, imino disuccinate chelated microelements, two conditioners such as rapin and biochemical fulvic acid and nanometer titania are adhered and bonded together to prepare the leaf vegetable nano leaf fertilizer. The preparation technology is simple, low in cost and high in controllability, the prepared leaf vegetable nano leaf fertilizer is scientific in proportioning of the raw materials and high in total nutrient content, the product is mixed with water, the mixture is sprayed and applied onto leaves of leaf vegetables, so that on one hand, nutrients of the leaf fertilizer can be fixed on the leaves, drifting, leaching loss and evaporation of the fertilizer are reduced, on the other hand, nutrient absorption and movement inside the leaves of the leaf vegetable fertilizer can be promoted, and the absorption and utilization rate is high.

The invention in particular relates to a plant selenium-rich growth promoter and a preparation method of the plant selenium-rich growth promoter, belongs to the technical field of plant growth regulators and solves the technical problem of providing the growth promoter capable of improving the selenium content of crops and promoting the yield of the crops and benefiting soil and the preparation method of the growth promoter. The technical scheme adopted in the invention is that the plant selenium-rich growth promoter comprises the following raw materials in percentage by weight: 8 to 11% of EM microbial flora, 1 to 2% of vitamin liquid, 4 to 7% of 18 amino acids, 1 to 2% of selenium yeast mother liquor, 2 to 4% of growth factors, 1 to 2% of GPIT(Gene Phenotype Induce Technique) revulsant, 1.5 to 3.5% of glucose, 1 to 3% of nutrient, and 70 to 80% of water. The plant selenium-rich growth promoter is fermented twice.

The invention relates to the technical field of agriculture and biology, in particular to a cutting and rapid propagation method for flowers and plants. The method comprises the steps of disinfection, soaking with an inductive agent solution, cutting, leaf fertilizer spraying, seedling exercising, transplanting and the like, wherein branches serve as cutting slips; the inductive agent solution is mainly prepared from a seaweed extracting solution, a willow extracting solution, an alfalfa extracting solution, salicylic acid, fulvic acid, vitamin B12, white sugar, paclobutrazol, brassinolide, a compound fertilizer, bone glue, waste molasses, sodium alkylnaphthalenesulfonate, polyoxyethylene alkyl ether and the like; the leaf fertilizer is mainly prepared from diethylaminoethyl hexanoate, compound sodium nitrophenolate, tulip, cumin, lavender, thyme, urea, starch paste, tea-seed oil and the like. The cutting and rapid propagation method for the flowers and plants is simple in propagation operation, quick in rooting speed and strong and developed in root system, plant diseases and insect pests are reduced, the pesticide utilization rate is reduced, the environmental pollution is reduced, and the rooting rate and the survival rate of the flowers and plants are obviously improved.

An intelligent adjustment plant light supplementing system relates to the technical field of agricultural planting, and adopts the technical scheme that the intelligent adjustment plant light supplementing system comprises a light supplementing device, an illumination intensity detection device and a control system. The height and the position of the light supplementing lamp can be flexibly adjusted through the telescopic rod and the movable base respectively, in the plant growth process, the height of the light supplementing lamp can be adjusted according to changes of the plant height, the distance between a light source and a plant is kept about 10 cm all the time, and at the moment, the light energy utilization rate is the highest; through the cooperation of the linear motion module and the second distance sensor, the light quantum sensor can be always kept at a distance less than 6cm away from the plant, and the illumination intensity value detected at the distance is closer to the actual illumination intensity of the plant, thereby providing a more accurate basis for the control of the light supplement lamp. The illumination angle of the light supplementing lamp can be adjusted through rotation, more uniform illumination conditions are provided for plants with high plant heights, and the photosynthesis rate of leaves on the lower half portions of the plants is increased.

The invention relates to a method for promoting eel grass seeds to germinate and grow. The method comprises the following steps that: in a culture box, potassium nitrate solution or chitosan solution is added, in addition, trace intermittent aeration is used as an auxiliary measure, and the eel grass seeds are added for soaking; the soaked eel grass seeds are cultured in a beaker with lake bottom sediment as substrates; and after the eel grass seeds germinate, the young eel grass seedlings are placed into a culture box containing the potassium nitrate to be soaked, and meanwhile, trace intermittent aeration and intermittent short wave ultraviolet ray radiation are used as auxiliary measures. The method provided by the invention is simple, the germinating time of the eel grass seeds is short, the germinating rate is high, the growth speed is high, in addition, the economic cost is low, and great significance is realized on the fast breeding and large-scale production seedling culture of the eel grass.

The invention discloses a plant cultivation system and a cultivation method thereof. The plant cultivation system comprises a plant cultivation area which is independent from the outside world and capable of utilizing a natural light source, a central controller, an oxygen execution module, a temperature execution module, a humidity execution module, an irrigation execution module and a fertilization execution module, and is characterized in that the central controller is connected with the oxygen execution module, the temperature execution module, the humidity execution module, the irrigation execution module and the fertilization execution module, the irrigation execution module receives an instruction sent by the central controller and performs irrigation on the cultivation area, and the fertilization execution module receives an instruction sent by the central controller and performs fertilization on the cultivation area. The plant cultivation system provides an intelligent and automatic control environment for plant growth, and greatly improves the growth efficiency and quality of plants through scientific and precise control.

The invention discloses compound microorganism leaf surface bacterial fertilizer and a preparation method thereof, belongs to the technical field of agriculture, and aims at providing the compound microorganism leaf surface bacterial fertilizer which can avoid occurrence of common nutrient deficiency symptoms and further can improve resistance of crops to disasters of pest and disease damage and the like and the preparation method thereof. The compound microorganism leaf surface bacterial fertilizer disclosed by the invention is prepared from materials in mass fraction: 11 parts of calcium ammonium nitrate, 12.5 parts of magnesium nitrate, 5 parts of zinc sulfate, 2 parts of xylitol, 3 parts of mannitol, 3 parts of sorbitol, 2 parts of glycerol and 61.5 parts of complex probiotic bactericide. The compound microorganism leaf surface bacterial fertilizer disclosed by the invention can strengthen tree vigor, improve agricultural product quality and improve yield by the methods of enhancing photosynthesis rate and the like.

The invention provides a method for carrying out original soil cultivation on mild saline-alkali soil through needle-leaved tree fallen leaf organic matter containing nutrient soil. The method comprises the step of applying the nutrient soil. The nutrient soil is prepared from 36-41 parts of lotus pond sludge, 35-47 parts of needle-leaved tree fallen leaf containing organic matter, 11-17 pats of nitrogen-phosphorus-potassium mixed fertilizer, 13-26 parts of chestnut shell powder, 13-28 parts of phosphorus feldspar, 5-11 parts of naringin, 1-5 parts of citric acid, 6-13 parts of sesame paste residues, 8-14 parts of walnut meal, 4-9 parts of muddy papaya flesh, 2.5-7.5 parts of codfish powder, 14-22 parts of composted rabbit dung, 1-5.5 parts of water-retaining agent and 0.4-1.7 parts of microelements. The invention further provides a preparation method of the nutrient soil. According to the planting method, the cost for carrying new soil is saved, cost is reduced, the cost is reduced by 35%, the functions of increasing the soil organic matter content and reducing soil ion exchange capacity are achieved, and the seedling survival rate of planted five-leaved pines reaches up to 95.8% to 97.1%.

The invention discloses a compound biological organic fish guano and a preparation method thereof. The fish guano consists of the following raw materials in percentage: 90% of a base fertilizer, 2% of nitrogen-fixing bacteria, 2% of phosphorus-solubilizing bacteria, 2% of potassium-solubilizing bacteria, 2% of photosynthetic bacteria and 2% of bacilli. The preparation process comprises the following steps: preparing the base fertilizer, adding the bacteria of other species to the base fertilizer, uniformly stirring, fermenting and packing. In the fish guano disclosed by the invention, the nitrogen-fixing bacteria are used for immobilizing nitrogen in a free state and converting the immobilized nitrogen into a combined-state nitrogen fertilizer which can be absorbed by algae so as to take an effect of fertilizing water; since dung is rich in inorganic potassium and inorganic phosphorus which are not used completely, and organic potassium and organic phosphorus cannot be directly utilized and can generate toxic and harmful substances once being decomposed, the phosphorus-solubilizing bacteria and the potassium-solubilizing bacteria are added to decompose the toxic and harmful substances, so as to change wastes and harmful substances into wealth; the photosynthetic bacteria with relatively strong degrading and decomposing functions are conducive to the improvement of an effect of decomposing organic matters and the increase of the photosynthetic rate of aquaculture water, so as to supplement a great amount of dissolved oxygen for aquaculture water; and the bacilli are capable of effectively inhibiting the growth and propagation of pathogenic bacteria in a water body and are capable of killing harmful bacteria.

The invention provides an ecological water purification device for treatment of black and odorous water and a method thereof. The device consists of a cell reaction apparatus, a purification apparatus and a drainage apparatus. The cell reaction apparatus includes an external cathodic reaction casing pipe and an anodic reaction casing pipe disposed in the cathodic reaction casing pipe, the space between the cathodic reaction casing pipe and the anodic reaction casing pipe forms a cathodic reaction chamber, the space in the anodic reaction casing pipe is an anodic reaction chamber, and the anodic reaction casing pipe is equipped with a proton exchange membrane to realize proton conduction of the anodic reaction chamber and the cathodic reaction chamber. The microbial fuel cell constructed by the invention combines with filtration technology, can treat urban black and odorous water, the effluent quality is good, and the water purification function can be realized; green plants are increased to construct an ecological system, thereby enhancing the water purification efficacy, building landscapes and beautifying the environment. The algae and green plants used by the device can be used as the raw materials of biomass energy in the future.

The invention discloses a high-efficiency planting greenhouse. Lighting equipment, carbon dioxide feeding equipment, irrigation equipment, temperature control equipment, moisture control equipment, prevention equipment for sterilization and disease prevention and an electric field processing device for promoting crop growing are arranged in the high-efficiency planting greenhouse. The prevention equipment comprises an electric function water generator and a spraying device connected with the electric function water generator, and electric function water electrolyzed by the electric function water generator is sprayed through the spraying device. According to the high-efficiency planting greenhouse, electric function water is used, sterilization and disease prevention effect is good, effect can be achieved quickly, poison and harm are avoided, damage on environment and human bodies caused by pesticides can be avoided, the growing speed of crop can be obviously improved by electric field processing, and meanwhile the content of chlorophyll a in cells can be improved.

The invention discloses a special fertilizer for low temperature planting of water convolvulus. The special fertilizer is prepared from urea, ammonium nitrate, monopotassium phosphate, potassium sulphate, potassium fulvic acid, calcium nitrate, magnesium sulfate, borax, zinc sulfate, ferrous sulfate, copper sulfate, a microorganism bacterium agent, a growth regulating agent, a rare earth micro-fertilizer and an additive. According to the special fertilizer, the microorganism bacterium agent and the growth regulating agent both have the effects of increasing the photosynthesis rate of the water convolvulus and promoting nutrient substance absorption and can improve the soil environment and decrease the crop morbidity; the growth regulating agent, the additive and the inorganic fertilizer can effectively reduce cytosol exudation, conserve water and enhance the plant capacity for repairing a cellular membrane system in time and the freeze injury preventing capacity through cooperative usage. The normal vital movement of the water convolvulus in a low temperature environment is guaranteed by promoting the photosynthesis rate of the water convolvulus and improving the freeze injury preventing capacity of the water convolvulus, and the very good promoting effect on planting and popularizing of the water convolvulus in low temperature regions is achieved.

The invention discloses a method for planting pakchoi. The method comprises the following steps: firstly, land consolidation; secondly, seed treatment; thirdly, seed sowing; fourthly, nutrient and water management; fifthly, disease and pest management; sixthly, harvesting. According to the method, seeds of the pakchoi are subjected to special seed treatment firstly to improve characteristics of the seeds, so that the pakchoi seeds have high stress resistance including cold resistance, temperature variation resistance and the like, and the germination rate is improved; in cooperation with the use of special fertilizer, the capacity of frost damage prevention of the pakchoi is further enhanced, the photosynthesis rate and matter composition accumulation amount of the pakchoi are enhanced, normal life activities in a low-temperature environment are guaranteed, and finally, the pakchoi yield and quality have no obvious difference from those of pakchoi planted at a normal temperature. Therefore, the method is of great significance to planting and promotion under a natural low-temperature condition.

The invention discloses a plant greenhouse automatic control system and method. The automatic control system comprises a plant greenhouse, a central processor, an oxygen control unit, a temperature control unit, a humidity control unit, a watering control unit and a fertilization control unit. The plant greenhouse is independent of the exterior and can utilize a natural light source. The central processor is electrically connected with the oxygen control unit, the temperature control unit, the humidity control unit, the watering control unit and the fertilization control unit. According to the control system and method, an ideal environment is created for plant growth, through scientific and precise plant external factor control, under the optimal planting condition and the condition of stable and sufficient light energy, the plant photosynthesis rate is increased, the respiratory action of plants during low illumination intensity is reduced, and therefore the yield of the plants is increased.

The invention belongs to the field of agricultural cultivation, and particularly relates to a potato fertilization method. Different distribution ratios, fertilizer application periods and fertilizer application methods at different stages of potatoes are determined, fertilizer utilization efficiency can be increased effectively, yield per mu and market potato rate are increased obviously, and significant economic benefit is obtained.

The invention belongs to the field of energy utilization, and relates to a system and process for microalgae cultivation by means of chemical-looping combustion CO2 and ash. In the chemical-looping combustion process, high-temperature vapor serves as fluidization carrier gas and a gasification agent of fuel, Fe2O3 is taken as an oxygen carrier, and combustion products are mainly H2O and CO2 and are collected separately; a microalgae cultivation device is a surrounding type tubular cultivation container and simulates the natural growth environment, CO2 is introduced into the container to enhance the photosynthesis of microalgae, and then the growth rate of microalgae is increased; alkali metal in ash generated through chemical-looping combustion is used for preparing a microalgae cultivation solution. The chemical-looping combustion process and microalgae cultivation are tightly combined, two-stage reaction of chemical-looping is fully utilized to generate high-concentration CO2 to be used for promoting microalgae cultivation, and ash generated from combustion is utilized to prepare the microalgae cultivation solution; microalgae cultivation rate and quality are improved, cultivation cost is reduced, and comprehensive utilization of a chemical-looping combustion device and chemical-looping combustion products is achieved.

The invention provides a functional enveloped slow-release fertilizer containing amino oligosaccharin and a preparation method of the functional enveloped slow-release fertilizer, and relates to the field of fertilizers. The functional enveloped slow-release fertilizer includes outer enveloped layers, inner enveloped layers and fertilizer cores; the fertilizer cores are prepared from the followingraw materials in parts by weight: 30-35 parts of urea, 10-18 parts of ammonium sulfate, 5-8 parts of ammonium dihydrogen phosphate, 12-15 parts of potassium sulfate, 3-5 parts of ammonium nitrate, 6-10 parts of superphosphate, 10-20 parts of plant ashes, 1-5 parts of a mineral fulvic acid, 4-7 parts of medical stone powder loaded niacin / amino oligosaccharin, 50-80 parts of kieselguhr, and 1-3 parts of a synergist; the inner enveloped layers are glucomannan / tea saponin / gamma-polyglutamic acid composite enveloped materials; and the outer enveloped layers are prepared from the composite enveloped materials prepared according to the weight ratio of vinol to methylcellulose being 1:(0.5-5). According to the functional enveloped slow-release fertilizer, the transformation and migration of nutrient elements in soil can be effectively controlled, the loss is reduced, the fertilizer utilization rate is improved, the fertilizer consumption and the planting cost are lowered, and the crop growthrate is greatly promoted.

The invention discloses a Mn<4+> activated dark red fluorescent material for a plant growth LED (Light Emitting Diode) lamp and a preparation method of the Mn<4+> activated dark red fluorescent material. The molecular formula of the fluorescent material is SrLa2Sc2O7:xMn<4+>, in the formula, x is greater than or equal to 0.001 and less than or equal to 0.04, a crystal structure of SrLa2Sc2O7 is anorthorhombic system, a space group is Fmmm, crystal cell parameters are as shown in the description, and the crystal cell volume is as shown in the specification. The preparation method comprises thefollowing steps: grinding and uniformly mixing SrCO3, La2O3, Sc2O3, MnO2 and MgO, pre-sintering in an air atmosphere, and carrying out roasting, thereby obtaining the fluorescent material. The fluorescent material disclosed by the invention has a wide stimulation waveband of 250-600 nm and a dark red emitting band at 650-750 nm, and can be applied to plant growth LED lamps. In addition, the fluorescent material is simple and feasible in preparation method, low in raw material price and applicable to large-scale industrial production.

The invention provides a strawberry planting lamp. A spectrum most suitable for strawberry growth is obtained by limiting the wavelength of light emitted by lamp beads with various different wave bands, so that the strawberry harvesting time is advanced, and the single fruit quality and the single plant yield of strawberries are improved; by controlling the light quality ratio of the strawberry planting lamp, the light quality ratio is controlled within the most suitable strawberry growth range, the solid-acid ratio and the Vc content of the fruits are increased, and the taste and flavor of the strawberry fruits are improved; and by controlling the power of the lamp, the number of the lamp beads working on the lamp is controlled and the arrangement mode of the lamp beads in the strawberry planting lamp is adjusted, control over the illumination intensity and uniformity is achieved, sunburn caused by too strong supplementary light is avoided, and the situation that the yield and quality of the strawberries are inconsistent due to uneven supplementary light is further avoided.

The invention relates to a composite microbial leaf surface bacterial fertilizer and a preparation method thereof, and belongs to the technical field of agriculture. The purpose is to provide the composite microbial leaf surface bacterial fertilizer which can avoid the occurrence of common element deficiency symptoms and improve the resistance of crops to disasters such as pests and diseases and the like, and provide the preparation method thereof. The composite microbial leaf surface bacterial fertilizer comprises in parts by mass: 11 parts of calcium ammonium nitrate, 12.5 parts of magnesiumnitrate, 5 parts of zinc sulfate, 2 parts of xylitol, 3 parts of mannitol, 3 parts of sorbitol, 2 parts of glycerol and 61.5 parts of a composite probiotic microbial agent. The composite microbial leaf surface bacterial fertilizer can strengthen the tree potential, improve the quality of agricultural products and increase the yield of agricultural products by the manner of enhancing photosynthesis rate and the like.

The invention discloses an efficient fast seedling culture device. The device comprises a thermal cover, a water tank, a water pipe, a culture terrace and first placement plates; the water tank is installed at the top of the thermal cover, the water pipe is installed at the bottom of the water tank through a connection pipe, a bottom plate is installed on the inner wall of the thermal cover, the culture terrace is installed on the bottom plate, a water suction pump is installed at the position, below the bottom plate, of the inner wall of the bottom face of the thermal cover, a water suction pipe and a water channel are installed at the two sides of the water suction pump respectively, and the first placement plates, second placement plates and third placement plates are installed on the outer walls of the two sides of culture terrace. A lighting lamp is installed inside the efficient fast seedling culture device, even when there is no sunlight outside, the lighting lamp can give proper light to seedlings to promote the efficiency of photosynthesis of the seedlings, accordingly the efficiency of seedling culture is greatly improved, and the work requirements are met.

The invention discloses a mechanized planting management device for a grapery. The device comprises a ground, wherein a ground temperature detecting unit is arranged inside the ground, a first groundburied pipe is arranged at the top of the ground temperature detecting unit, a second ground buried pipe is arranged at the top of the first ground buried pipe, lower supporting rods are fixedly arranged at the top of the ground, cross rods are fixedly arranged at the tops of the lower supporting rods, upper supporting rods are fixedly arranged at the tops of the cross rods, air temperature detecting units are arranged on the side faces of the upper supporting rods, a plurality of exhausting windows and air inlet windows are fixedly arranged on the lower supporting rods, each air inlet windowis arranged at one side of the corresponding exhausting window, a connecting hopper is fixedly arranged on side faces of the air inlet windows, a flow confluence pipe is arranged on the connecting hopper, a case is arranged on the side faces of the lower supporting rods, and a cold-blast air unit and a hot-blast air unit are arranged inside the case. According to the mechanized planting managementdevice for the grapery, the influence caused by outside natural environments is absent while the diurnal temperature variation during grape growth is increased, and the action on improving the coloration and sugar content of grapes is remarkable.

The invention relates to a high-concentration biological liquid calcium fertilizer. The high-concentration biological liquid calcium fertilizer comprises a composite probiotics agent, calcium ammoniumnitrate, and sugar alcohol, the mass parts of each component are as follows, the composite probiotics agent is 20-40 parts, the calcium ammonium nitrate is 50-70 parts, and the sugar alcohol is 5-20parts. The preparation method of the biological liquid calcium fertilizer comprises the following steps: injecting carbon dioxide exhaust gas into a heating system, adding molasses and wheat bran, heating the materials, and preserving the materials; cooling a mixture prepared as described above, adding the compound probiotic bacteria species, and sealing and stirring the materials; then transferring the materials to a fermentation cylinder through a centrifugal pump for temperature-changing fermentation, and preparing the composite probiotics agent; placing the composite probiotics agent in the fermentation cylinder, performing heating and insulation, and adding sugar alcohol and calcium ammonium nitrate and stirring the materials for storage. The fertilizer has the advantages of quick fertilizer efficiency, high absorption rate, and quick supplement of calcium element, supplys quick nutrient required for microbial activity, accelerates microbial breeding and activity, and is beneficial to the dissolution of poorly soluble nutrients in the soil. The preparation method has the advantages of short time and low cost, and the prepared liquid calcium fertilizer has high calcium contentand stable performance.

The invention belongs to the field of energy utilization, and relates to a system and process for microalgae cultivation by means of chemical-looping combustion CO2 and ash. In the chemical-looping combustion process, high-temperature vapor serves as fluidization carrier gas and a gasification agent of fuel, Fe2O3 is taken as an oxygen carrier, and combustion products are mainly H2O and CO2 and are collected separately; a microalgae cultivation device is a surrounding type tubular cultivation container and simulates the natural growth environment, CO2 is introduced into the container to enhance the photosynthesis of microalgae, and then the growth rate of microalgae is increased; alkali metal in ash generated through chemical-looping combustion is used for preparing a microalgae cultivation solution. The chemical-looping combustion process and microalgae cultivation are tightly combined, two-stage reaction of chemical-looping is fully utilized to generate high-concentration CO2 to be used for promoting microalgae cultivation, and ash generated from combustion is utilized to prepare the microalgae cultivation solution; microalgae cultivation rate and quality are improved, cultivation cost is reduced, and comprehensive utilization of a chemical-looping combustion device and chemical-looping combustion products is achieved.