1081 results about "Photosynthesis" patented technology

The invention discloses an accurate fertilizer proportioning production control system based on data analysis, and relates to the technical field of intelligent agriculture, the system collects soil and crop related data in real time through a sensor group and monitoring equipment, and after preprocessing, a crop growth environment data set is formed; summarizing and calculating a soil microorganism activity index, a root respiration rate index and a photosynthesis efficiency index; the indexes and the soil environment data are combined to determine the specific feeding demand quantity of nitrogen, phosphorus and potassium, the specific feeding demand quantity of nitrogen, phosphorus and potassium is summarized, a comprehensive fertilizer proportion index is calculated, evaluation is performed according to a preset first fertilizer demand threshold value and a preset second fertilizer demand threshold value, and when an evaluation result triggers a proportion adjustment mechanism, the fertilizer is adjusted. And the fertilizer ratio regulation and control module dynamically adjusts the fertilizer ratio according to the actual crop and soil conditions, and optimizes the ratio effect through a feedback mechanism. According to the system, the nutrient supply precision of crops is improved, fertilizer waste can be effectively reduced, and sustainable agricultural development is promoted.

The invention relates to a Chinese wildrye rhizosphere growth-promoting bacterium and application of the Chinese wildrye rhizosphere growth-promoting bacterium in growth promotion and drought resistance of Chinese wildrye, and belongs to the technical field of microorganisms, the strain is classified and named as Paraburkholderia graminis, the strain number is B24, and the preservation number is CGMCC No.31907. The strain provided by the invention is derived from the intergrassland soil of leymus chinensis in an excessive grazing grassland, has good growth promoting characteristics of producing IAA, producing ACC deaminase, fixing nitrogen, dissolving phosphorus and the like, and also can obviously enhance the drought resistance of the leymus chinensis. When the strain is inoculated to the rhizosphere of a leymus chinensis seedling, the growth of the leymus chinensis can be obviously promoted, and the overground and underground biomass of the leymus chinensis is increased; the activity of antioxidant enzymes is reduced and the hormone content in leymus chinensis leaves is changed, so that drought stress is relieved, the photosynthesis of leymus chinensis is enhanced, and the drought resistance of leymus chinensis is remarkably improved. Therefore, the Burkholderia parakholderia can be used for development of a microbial fertilizer for grassland plants and applied to a drought stress habitat, so that the drought resistance of the grassland plant leymus chinensis is improved, and grassland management is optimized.

The invention discloses a low-power-consumption multiple-input-multiple-output thermo-optical switch chip which comprises N optical input ports, an N * N optical beam splitter, N spiral waveguide thermo-optical phase shifters, an N * N optical beam combiner and N optical output ports. The N * N light beam splitter and the N * N light beam combiner adopt the same design structure and comprise N single-mode input / output waveguides, N width gradient waveguide transition areas (taper areas) and a multi-mode waveguide area, and each single-mode input and output waveguide is connected to the multi-mode waveguide area through the width gradient waveguide transition area. The spiral waveguide thermo-optic phase shifter comprises two spiral waveguides with different sizes, an S bend with a gradually-changed width and a circular heating electrode. The transmission path of light in the chip can be changed by adjusting the spiral waveguide thermo-optical phase shifter, and the function of optical switch switching is achieved. The invention has the advantages of high integration level, high expandability and low power consumption, and can be used in the field of integrated photon chips.

The invention relates to the technical field of microorganisms, in particular to a disease-resistant, growth-promoting and yield-increasing strain and a microbial agent and application thereof. The strain is a strain bacillus velezensis NB21 (CCTCC (China Center for Type Culture Collection) NO: M2024979) which is found autonomously; the strain can grow at low temperature, is strong in ecological environment adaptability, can be used for preparing a single microbial agent or a compound microbial agent, and can also be used for forming a composition with other functional organic and inorganic substances. The prepared microbial agent can significantly prevent and treat diseases, promote root development of crops such as rice and corn, enhance photosynthesis, improve system resistance, increase crop yield, enhance nutrient supply and improve soil micro-ecology. The strain is unique, strong in colonization ability and diversified in function, the prepared microbial agent fermentation production technology is mature, the cost is low, the application range is wide, the yield increasing and quality improving effects are outstanding, and the microbial agent has good application prospects.

The invention relates to the technical field of materials adaptive to extreme environments, and discloses cross-scale gradient co-doped multifunctional composite aerogel as well as a preparation method and application of the cross-scale gradient co-doped multifunctional composite aerogel. The multifunctional composite aerogel is co-doped with ultraviolet light-screening agent nano-particles, infrared light-screening agent nano-particles and functional nano-particles in a cross-scale gradient manner, and is used for performing selective filtration and full-spectrum regulation and control on sunlight penetrating through the transparent aerogel; the ultraviolet light-screening agent particles are titanium dioxide nano particles; the infrared opacifying agent particles are indium tin oxide nanoparticles; and the functional nanoparticles are silver nanorods. The composite aerogel provided by the invention improves the anti-ultraviolet performance and high-temperature heat insulation performance of the aerogel and provides a function of enhancing photosynthesis of plants, and meanwhile, the transmittance of the transparent aerogel in the visible light band of sunlight is not obviously reduced.

The invention discloses an intelligent agricultural environment monitoring method and a light supplement adjusting system, and particularly relates to the technical field of agricultural monitoring. An edge computing device is utilized to extract photosynthesis efficiency irregular features and illumination intensity change rate fluctuation features in a data processing module, and a delay degree evaluation module evaluates the delay abnormal degree between real-time environment data and a light supplement adjustment decision. The light supplementing control module is used for deeply analyzing delay data in a fixed time period and dynamically adjusting the illumination intensity and spectral distribution of a light supplementing lamp, so that the problem of insufficient response caused by high delay and single parameter analysis in a traditional method is effectively solved; the accuracy and the real-time performance of agricultural environment monitoring are remarkably improved, the crop growth condition is optimized, and therefore the agricultural production efficiency and the crop quality are improved.

The utility model discloses a flowing type nutrient solution circulating supply vegetable planting device, and belongs to the technical field of vegetable planting. The flowing type vegetable planting device with the nutrient solution circularly supplied comprises a planting nutrient solution box and three layered planting frames, an integrally-formed through opening is formed in the lower end of an inclined flow guide plate, a filtering liquid box is installed below the layered planting frames, and a circulating pump is installed at the upper end of the filtering liquid box. According to the multi-layer vegetable planting frame, the problems that in the actual use process of an existing vegetable planting frame, due to the fact that multiple layers of stacked vegetable planting frames cause poor photosynthesis of vegetables on the bottom layer, the planting effect is affected are solved, multi-layer supply work is carried out through a single-path supply pipeline, and three layered planting frames distributed in a trapezoid mode are arranged, so that the planting effect is greatly improved. Vegetables in the layered planting frame on the lower layer can be illuminated, so that the planting effect of the hydroponic vegetables is improved, multi-layer planting work can be conducted through the layered planting frames, the land area is saved, and the vegetable planting effect is improved.

The invention relates to a method for improving cadmium stress resistance of rice by using carbon quantum dots (CDs), which solves the technical problem that rice growth is affected due to the fact that rice is deeply poisoned by cadmium in the prior art by spraying the carbon quantum dots on leaf surfaces of the rice or irrigating the carbon quantum dots into root soil of the rice. CDs are used as a leaf surface resistance and control agent to treat cadmium-stressed rice, and it is found that on the premise that growth and development of the rice are not affected, CDs can improve the stress resistance of the rice by promoting photosynthesis of the rice and can stimulate a rice defense system to generate more antioxidant enzymes to cope with oxidative damage caused by Cd stress. Besides, CDs can also reduce the concentration of DTPA-Cd in soil and reduce accumulation of Cd on the overground part so as to further reduce the toxicity of Cd to rice, and meanwhile, the Cd content of the overground part of the rice is reduced so as to be beneficial to reducing accumulation of Cd in grains, so that CDs can be used as a leaf surface resistance and control agent to effectively relieve cadmium toxic rice, thereby promoting growth and development of the rice and improving the yield.

The tomato grafted seedling raising device comprises a culture box, a first motor is fixedly installed on the side wall of the culture box, the output end of the first motor is connected with a first driving gear, a sliding rail is fixedly installed on the inner side wall of the culture box, and a first culture frame is distributed on one side of the sliding rail; a connecting strip is fixedly installed on the side wall of the first culture frame, a sliding strip is fixedly installed on the side, away from the first culture frame, of the connecting strip, and a rack is fixedly installed at the bottom of the connecting strip; through the arrangement of a first motor, a first driving gear, a rack, culture frames and other structures, the opposite movement of the two culture frames can be conveniently realized subsequently, so that the tomato seedlings cultured in the culture frames can be conveniently and better subjected to photosynthesis subsequently; the two parallel fixed culture frames are prevented from influencing the normal photosynthesis of the subsequent tomato grafted seedlings, and the culture effect of the tomato grafted seedlings is improved.

The invention discloses a comprehensive data analysis-based river ecological restoration effect evaluation method, and particularly relates to the technical field of ecological restoration evaluation.The method comprises the steps of obtaining ecological function data and ecological structure data of a river restoration area, analyzing the ecological function data in combination with a deep learning model, and constructing a vertical distribution model of photosynthesis efficiency; evaluating photosynthesis contribution differences of different water depth levels; on the basis of ecological structure data, monitoring migration characteristics of key nutrients of a vegetation and bottom mud interface, and quantifying a dynamic relationship between nutrition supply and demand balance and vegetation growth recovery by using an interface coupling model; comprehensively analyzing a photosynthesis contribution difference and a nutrition supply and demand dynamic relationship, and generating a comprehensive evaluation index reflecting a vegetation health state and an ecological restoration degree; and based on the evaluation indexes, the restoration effects are graded, a restoration effect distribution diagram and statistical data are generated, and finally an ecological restoration effect report is output.

The invention discloses an acid contaminated soil carbon emission reduction method based on a coupled ecological system, which comprises the following steps: adding rice straw biochar into acid contaminated soil, planting plants which are perennial ryegrass, and after the plants are cultivated to a mature period, strengthening the photosynthesis capability of the plants and the carbon sequestration capability of the soil at the same time, so as to improve the carbon sequestration capability of the acid contaminated soil. The negative increase of the CO2 emission cumulant and the remediation of the acidic polluted soil are realized. According to the method, the emission cumulant of CO2 in the acid polluted soil is greatly reduced, the total absorption amount of CO2 reaches up to 193.41 g / m < 2 >-304.41 g / m < 2 >, and the method has the advantages that raw materials are low in cost and easy to obtain, operation is easy, the operation cost is low, secondary pollution is avoided, and the method is suitable for large-scale use and has wide application prospects in the field of carbon emission reduction of the acid polluted soil (such as heavy metal pollution).

The invention relates to the technical field of carbon flux monitoring, and particularly discloses a carbon flux monitoring method and system based on soil drought remote sensing data, and the method comprises the steps: respectively collecting soil humidity remote sensing data and a soil vegetation coverage remote sensing image through a microwave sensor and an optical remote sensing sensor; performing resampling on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image to realize spatial resolution alignment, and performing spatial distribution feature extraction on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image after spatial alignment by adopting a deep learning algorithm; and pixel-level significance enhancement and fusion processing are carried out on the captured soil humidity distribution characteristics and vegetation distribution characteristics, so that nonlinear modeling of a dynamic influence mechanism of the soil drought degree on the vegetation growth state is realized, and intelligent estimation of the carbon flux is realized on the basis. In this way, the nonlinear regulation and control effect of soil drought stress on vegetation respiration and photosynthesis can be effectively described, and the efficiency and coverage range of carbon flux monitoring are improved.

The invention relates to preparation and photocatalytic application of a three-component covalent organic framework photocatalyst. The invention aims to solve the problems of low visible light utilization rate, low efficiency of photocatalytic synthesis of hydrogen peroxide and complex synthesis process of a multi-component covalent organic framework material in the synthesis of a high-performance photocatalyst in the prior art. The method comprises the following steps: dispersing two reaction monomers into an organic solvent to form a mixed solution, adding a catalyst into the mixed solution, then adding the third monomer, carrying out ultrasonic dispersion, carrying out a heating reaction for a period of time, cooling to room temperature, and carrying out solid-liquid separation to obtain a solid; and carrying out solid separation, collecting the solid, washing and drying to obtain the three-component covalent organic framework material. The prepared TTBTP-1 three-component covalent organic framework photocatalytic material is high in crystallinity and good in catalytic effect and is superior to a two-component photocatalyst, the preparation method is simple, through the design thought that p-phenylenediamine is adopted as a linker to connect two monomers with different structures, the thought is broadened for the design of a novel COF structure and function, and the application prospect is broad. The method has important research significance.

The utility model discloses a corn seed germination accelerating device. The corn seed germination accelerating device comprises a germination accelerating box for accelerating germination of corn seeds; a box door is mounted on one side of the germination accelerating box, a tray used for bearing corn seeds is rotatably mounted in an inner cavity of the germination accelerating box, and a water outlet used for discharging excessive water is formed in one side of the bottom of the germination accelerating box; the wetting mechanism is used for wetting the corn seeds; the illumination mechanism is used for enhancing photosynthesis of the corn seeds; the wetting mechanism comprises a water tank arranged at the top of the germination accelerating box and a water pump mounted on the outer wall of one side of the germination accelerating box, a water conveying pipe supplied with water by the water pump is arranged on one side of the tray in an inner cavity of the germination accelerating box, and multiple groups of atomizing nozzles are mounted on one side, directly facing the tray, of the water conveying pipe; the illumination mechanism comprises a lamp holder mounted at the top in the germination accelerating box and a plurality of groups of illumination lamps mounted on the lamp holder. The problem of oxygen deficit caused by excessive soaking of the seeds is not easily caused, and the vitality of the corn seeds is ensured.

The invention belongs to the technical field of monitoring of a hot spring algae culture process, and discloses an intelligent monitoring and analyzing method for growth data of hot spring algae culture. According to the invention, by identifying the abnormal growth state and dynamically adjusting the spectrum composition and intensity of the multiband illumination sensor array when the abnormal growth state is identified, spectrum-growth state closed-loop control is realized, the accuracy and effectiveness of illumination control are improved, proper illumination is provided for the hot spring algae in time, and the quality of the hot spring algae is improved. The photosynthesis and normal growth are guaranteed, the culture efficiency and quality are effectively improved, and the loss caused by abnormal growth is reduced. According to the method, the growth cycle is identified based on the relative growth rate and the cell division rate, so that the growth change can be more sensitively captured, the exact growth stage of the hot spring algae can be accurately grasped, a key support is provided for subsequent accurate regulation and control of culture conditions, and the scientificity and effectiveness of culture are greatly improved.

The invention relates to the technical field of ricefield eel culture, in particular to a method for culturing ricefield eel under a photovoltaic panel, which comprises the following steps: arranging a photovoltaic panel in a pond, building a net cage by utilizing gaps of the photovoltaic panel, transplanting aquatic plants before fry stocking, and stocking ricefield eel fry when the coverage rate of the aquatic plants reaches a certain value; an adjusting mechanism is arranged on the photovoltaic panel, the photosynthesis of the aquatic plants is controlled by adjusting the inclination angle of the photovoltaic panel and adjusting the illumination rate and illumination time of the aquatic plants, the photovoltaic panel adjusts the water quality in the pond by controlling the growth and coverage rate of the aquatic plants, and a monitoring mechanism for monitoring the water quality condition is arranged in the pond; and the monitoring mechanism and the adjusting mechanism are powered by a photovoltaic panel. The water quality is improved through alternanthera philoxeroides, the photovoltaic panel shields sunlight to control the alternanthera philoxeroides to conduct photosynthesis, excessive breeding of the alternanthera philoxeroides is avoided, the photovoltaic panel generates power to supply power to the photovoltaic panel adjusting mechanism and the water quality monitoring mechanism, water quality monitoring and control are achieved, and the survival rate of ricefield eel breeding is guaranteed.

The invention discloses an ecological restoration system for mangrove forest wetlands, and relates to the technical field of ecological restoration of coastal wetlands, and the technical key points are as follows: the ecological restoration system comprises an algae-cleaning biocenosis: the number of algae is reduced through salt-tolerant algae-cleaning organisms, and the transparency of a water body is improved; the sea grass plant community comprises Sichuan fructus viticis and halophila acuminata, absorbs eutrophic substances in water through photosynthesis, and further purifies the water quality; aquatic animals comprise fishes, benthonic animals, shrimps and filter-feeding zooplanktons; the mangrove plant community is used for planting bruguiera gymnorrhiza, kandelia candel and aegiceras corniculatum in a layered manner according to tide and water depth so as to realize the functions of purifying water quality of an ecological system and providing a habitat; and the environment monitoring module is provided with tide monitoring equipment, observes tide water level change and salinity and alkalinity, and implements early warning and emergency measures under extreme climate conditions. According to the method, a multi-layer producer community system can be coupled and repaired, the eutrophication problem can be effectively solved by multi-dimensionally improving the biodiversity, and a new method is provided for coastal wetland repair.

Systems and methods for developing and applying photosynthetic cellular substances to a human or animal for medical, therapeutic or cosmetic uses are provided. Photosynthetic cells, such as algal cells, can be used in these substances to provide the ability to continuously generate oxygen when exposed to a light source or other oxygen-generating trigger. The substances can be developed as a standalone liquid, gel or cream, or embedded within a bandage, mesh, scaffold or other structure with a light source to promote oxygen production. The substances can be applied topically for medical, therapeutic or cosmetic treatments, or injected internally for generation of oxygen within one or more parts of the body.

Provided are a method, apparatus, electronic device, and storage medium for monitoring a nitrogen demand of a fruit tree. The method includes acquiring plant input parameters of a fruit tree to be monitored, where the plant input parameters at least include a phenological development accumulated temperature parameter, a green leaf parameter, a photosynthesis parameter, a respiration parameter, a dry matter accumulation parameter, a partitioning parameter, and a nitrogen transport parameter. A target monitoring model is constructed, where the target monitoring model is a WOrld FOod Studies (WOFOST) model integrating nitrogen monitoring. The plant input parameters of the fruit tree to be monitored are input into the target monitoring model to obtain a nitrogen demand of the fruit tree to be monitored that is output by the target monitoring model.

The invention discloses nano-engineered microalgae for photoimmunotherapy of melanoma and a preparation method of the nano-engineered microalgae. The preparation method comprises the following steps: S1, respectively putting tannic acid, potassium carbonate, sodium citrate and HAuCl4. 3H2O into water to prepare a tannic acid solution with the concentration of 4.3 mg / mL, a potassium carbonate solution with the concentration of 20.7 mg / mL, a sodium citrate reduction solution with the concentration of 0.7 mg / mL and a HAuCl4 solution with the concentration of 10.0 mg / mL; s2, dissolving a tannic acid solution and a potassium carbonate solution in the sodium citrate reduction solution to obtain a mixed solution; s3, the mixed solution is heated under stirring, a HAuCl4 solution is dropwise added, stirring continues, and AuNP is obtained; and S4, mixing the AuNP obtained in the step S3 with the microalgae PCC 7942, standing, incubating, and centrifugally washing, so as to obtain the nano-engineered microalgae PCC-coated AuNP. The functionalized microalgae drug delivery system (PCC-coated AuNP) prepared by the invention has the performance of respectively generating O2 and H2 through photosynthesis and photocatalytic reaction under the irradiation of 635 nm red light.

The utility model discloses an aeration cyclone offshore algae control system, which belongs to the technical field of offshore prevention and control of blue-green algae, and comprises an air compressor, a water tank, a heat exchanger, a cooling circulation device and a plurality of aeration cyclone mechanisms, each aeration cyclone mechanism comprises an aeration main pipe, a horizontal aeration branch pipe and a plurality of vertical aeration branch pipes, according to the utility model, active offshore algae control is realized in the time period of stronger illumination and higher air temperature, and the'gas stripping 'effect generated by the rising of bubbles is utilized, so that the Reynolds number is increased, the turbulence degree of a water body is increased, and the aeration effect of the water body is improved. Meanwhile, the normal migration rule of the blue-green algae can be destroyed due to the occurrence of the rotational flow, so that the blue-green algae cannot normally perform photosynthesis, and water layers at different temperatures can be sufficiently mixed due to the rotational flow, so that the water temperature of the surface water body is greatly reduced, and the growth of the blue-green algae is effectively controlled.

The invention discloses a tomato cultivation control system based on illumination parameter adjustment. The tomato cultivation control system comprises a soil heater, a temperature controller, an information acquisition device, a control module, an illumination adjustment device and a data storage and analysis module, wherein the soil heater is connected with the temperature controller, and the temperature controller is connected with the control module; the information acquisition device, the illumination adjusting device and the data storage and analysis module are respectively connected with the control module; and the information acquisition device is also connected with the data storage and analysis module. Illumination parameters and temperature can be accurately adjusted according to the requirements of tomatoes in different growth stages, and the most suitable conditions are provided for the tomatoes, so that the photosynthesis efficiency of the tomatoes is improved, plant growth is promoted, the number and weight of fruits are increased, and the quality, such as color, taste and nutritional value, of the tomato fruits is improved.

The invention belongs to the technical field of carbon sink evaluation, and discloses a typical weather-oriented tea garden carbon sink dynamic profit and loss evaluation method and system. Historical meteorological information and historical carbon sink monitoring information of the tea garden are collected, and a typical weather type library of the tea garden is constructed; determining a typical weather type corresponding to the current day of the tea garden, and calculating a carbon sink fixed amount and a carbon sink output amount of the tea garden; generating a correction factor for correction according to the management activity information of the tea garden to obtain a net carbon sink value; generating a total score based on comprehensive analysis of the net carbon sink value, and evaluating the carbon sink profit and loss condition of the tea garden; the carbon sink meteorological influence parameters before and after the monitoring time point are collected for comprehensive analysis to calculate the carbon sink fixed quantity and the carbon sink output quantity, calculation deviation caused by parameter fluctuation at a single time point can be avoided, and therefore the method better fits the continuous physiological process of photosynthesis / respiration of the tea trees, and the detection accuracy is improved. And the calculation result of the carbon sink fixed quantity / output quantity is closer to the actual condition.

The invention relates to the technical field of plant ecological carbon sink measurement and calculation, in particular to a tea garden carbon reserve dynamic monitoring and prediction method based on meteorological data, a typical sample plot in a tea garden is selected, meteorological data and basic carbon reserve of the typical sample plot are acquired, and the meteorological data comprise real-time data and forecast data; establishing dynamic monitoring, and performing heat damage identification and freeze damage identification on real-time data; establishing a carbon reserve dynamic correction model; a carbon reserve prediction model is established, and when heat damage and / or freezing damage occur in prediction data, the carbon reserve dynamic correction model is used for prediction to obtain a prediction result; according to the method, the damage of high-temperature stress to the tea trees has a gradual superposition characteristic, high-temperature inhibits photosynthesis, so that calculation is performed in a summation form, cold waves increase respiratory consumption, and the damage mainly depends on the intensity peak value and the cooling rate of a single event; by providing more accurate dynamic measurement and calculation as the supplement of static measurement and calculation, the change condition of the carbon reserves of the tea garden can be reflected in time.

The invention relates to a flower culture device, in particular to a culture device suitable for new variety breeding research of different flowers. The technical problem of the invention is to provide a culture device which can conveniently observe and compare indexes such as emergence and germination time, growth speed and the like of seeds with the same particle size in the same group and is suitable for breeding research of new varieties of different flowers. A breeding research culture device suitable for different new varieties of flowers comprises a culture table, the surface of the culture table is covered with a culture box, a core driving mechanism is installed in the middle of the culture table and fixedly arranged on a fixing frame, and a photosynthesis assembly is installed at the top of the core driving mechanism. The planting pits which are uniformly distributed at equal intervals can enable the plumbago auriculata seeds to be uniformly distributed in the culture box, so that the seeds are prevented from being excessively concentrated or dispersed, the seeds can fully utilize illumination, moisture and nutrients in the growth process, and poor growth or mutual competition of seedlings caused by overlarge local density is prevented.

The invention provides a preparation method of microalgae gel balls for water treatment, and relates to the field of water treatment, and the preparation method comprises the following steps: step S1, preparing a composite suspension, step S2, carrying out primary crosslinking to form balls, step S3, carrying out secondary crosslinking, step S4, carrying out in-situ enhancement, and step S5, coating. According to the method, microalgae is subjected to compound modification to obtain gel beads, and the finished product gel beads are obtained through coating, so that the swelling resistance and mechanical strength of the gel beads are improved, and the situation that a compact gel network and a multi-layer coating structure hinder nutrient substances, carbon dioxide and the like in a water body from diffusing to microalgae cells is avoided; the photosynthesis efficiency and pollution degradation capability of the microalgae are ensured, and the water treatment efficiency of the microalgae is improved.

The invention discloses a sunscald-preventing protective agent for fruits. The sunscald-preventing protective agent is prepared from the following raw materials in parts by mass: 1 to 20 parts of monodisperse calcium carbonate filter cake, 0.01 to 0.9 part of ethyoxyl modified polytrisiloxane, 0.01 to 0.8 part of polyvinyl acetate emulsion, 0.01 to 0.8 part of glycerol, 0.01 to 0.8 part of enzyme and 10 to 180 parts of water. The raw materials are mixed in two steps according to a certain sequence, stirred and dispersed to obtain the novel fruit anti-sunburn protective agent, and the novel fruit anti-sunburn protective agent can be used for fruit anti-sunburn planting after being diluted with water until the solid content of calcium carbonate is 2-6%. The sunburn-preventing protective agent is safe and non-toxic, can be sprayed on fruit surfaces or fruit tree leaf surfaces during use, can remarkably avoid the risk that fruits and fruit trees are burnt by strong sunlight, improves the disease resistance and stress resistance of the fruit trees, and reduces the occurrence probability of sunburn spots, sunburn fruits and diseased fruits. The anti-sunburn protective agent for the fruits has no great influence on transmission of visible light, does not influence normal photosynthesis of fruit trees, and can obviously improve the yield and quality of the fruits when being used for fruit planting compared with other sunshade modes.

The invention discloses application of a CMIET protein and a coding gene thereof in improving manganese resistance of plants. The invention belongs to the technical field of biology, and particularly relates to application of CMIET protein and a coding gene thereof to improvement of manganese resistance of plants. The CMIET protein can regulate and control biological manganese resistance, and excessive manganese in Chlamydomonas chloroplast can be discharged to cytoplasm by regulating and controlling expression of the protein CMIET or regulating and controlling gene or regulating and controlling activity or content of the protein CMIET, so that balance of manganese ion concentration in the chloroplast is maintained, and the chloroplast is prevented from being affected by manganese toxicity; the normal photosynthesis capability of the cells is maintained, and the normal photosynthesis is ensured.

The invention relates to the technical field of microorganisms, in particular to a disease-resistant, growth-promoting and yield-increasing strain and a compound microbial agent and application thereof. The strain is a strain pseudomonas GM3 (CCTCC (China Center For Type Culture Collection) NO: M20242391) and / or a strain bacillus velezensis NB21 (CCTCC NO: M2024979) which are / is found autonomously; the strains can grow at low temperature, are high in ecological environment adaptability, can be used for preparing a single microbial agent or a compound microbial agent, and can also be used for forming a composition with other functional organic and inorganic substances. The prepared microbial agent can significantly prevent and treat diseases, promote root development of crops such as rice and corn, enhance photosynthesis, improve system resistance, increase crop yield, enhance nutrient supply and improve soil micro-ecology, and has a good application prospect.

The present disclosure relates to engineered RNA m6A demethylases with disrupted low complexity regions (LCRs) for expression in plants, as well as recombinant DNA encoding the engineered RNA m6A demethylases, vectors encoding the recombinant DNA, plants including the engineered RNA m6A demethylases, and method of improving the growth of plants using the engineered RNA m6A demethylases, including increased root growth and elevated photosynthesis. The present disclosure further relates to methods of improving growth of a plant, including increased root growth and elevated photosynthesis, by modifying endogenous ALKBH5 homolog genes to include disrupted LCRs, and plants produced by those methods.