477results about "Rice cultivation" patented technology

The invention discloses pseudomonas chlororaphis S7-24 for antagonizing xanthomonas oryzae and application of the pseudomonas chlororaphis S7-24, and belongs to the technical field of microorganisms. The pseudomonas chlororaphis S7-24 is preserved in the China Center for Type Culture Collection on November 12, 2025, and the preservation number of the pseudomonas chlororaphis S7-24 is CCTCC NO: M 20252533. The pseudomonas chlororaphis S7-24 provided by the invention is a newly found pseudomonas biocontrol resource, and verification shows that the strain S7-24 has relatively high antagonistic activity on rice bacterial blight and rice bacterial streak, and can be used for effectively preventing and treating rice bacterial blight and rice bacterial streak. The pseudomonas chlororaphis S7-24 provided by the invention is used for preventing and treating rice bacterial leaf blight and rice bacterial leaf streak, can reduce the use amount of chemical pesticides, ensures grain safety, and has better economic and ecological benefits.

The invention relates to the technical field of agriculture, in particular to a preparation method and an application method of a zinc-rich cadmium-reducing yield-increasing foliar fertilizer. The specific technical scheme is as follows: the zinc-rich cadmium-reducing yield-increasing foliar fertilizer is prepared from the following components in percentage by mass: 20 to 30 percent of porous chitosan, 30 to 40 percent of L-malic acid and 40 to 50 percent of nano zinc oxide. The technical problem that in the prior art, the zinc content of rice cannot be increased, meanwhile, the rice yield cannot be increased, and the cadmium content of rice cannot be reduced is solved.

The invention belongs to the technical field of crop pollution prevention, and particularly relates to a rice heavy metal adsorption and isolation method based on iron agent regulation and control. According to the method, the iron agent is applied to the polluted rice field soil to induce the soil-rhizosphere interface to form an iron film, heavy metals (such as As, Cu, Pb and Cd) are fixed by virtue of adsorption and complexing effects of the iron agent, and migration of the heavy metals to rice roots is reduced, so that accumulation of the heavy metals at edible parts (leaves and ears) of the rice is reduced; the tolerance of the rice in a polluted environment is enhanced; and the risk of heavy metals in a food chain is reduced. Experiments show; through treatment of an iron film formed by a certain iron-based concentration, accumulation of the heavy metals in the rice leaves can be remarkably reduced, and the accumulation amount of the heavy metals in the rice leaves is far lower than the accumulation amount (1 / 40-1 / 120) of the heavy metals in rice roots. The invention provides an effective solution for farmland soil remediation and crop safety production.

This invention provides a method for preparing and applying a rice husk charcoal-modified substrate suitable for multi-mode rice seedling raising, belonging to the field of rice seedling raising technology. The invention first soaks rice husk charcoal in water, then soaks it in a mixed solution of citric acid and ammonium sulfate, and finally air-dries the rice husk charcoal to obtain modified rice husk charcoal. Finally, the modified rice husk charcoal is mixed with different fertilizers to obtain a rice husk charcoal-modified substrate suitable for rice seedling raising in different modes. The rice husk charcoal-modified substrate prepared by this invention can be used not only in tray seedling raising but also has good seedling rolling effect in blanket tray seedling raising.

The invention relates to the field of plant growth regulators, in particular to a conditioner group for improving the grain quality and the rice quality of direct seeding rice and a preparation and use method thereof.The preparation method of a conditioner in the initial heading stage comprises the following steps that 1, 6-benayl aminopurine is dissolved in a diluted hydrochloric acid solution in a assisted mode, and a 6-benayl aminopurine solution is obtained; step 2, adding choline chloride into the solution obtained in the step 1, stirring to obtain a mixed solution, transferring the mixed solution into a volumetric flask, and adjusting the pH value; 3, abscisic acid powder is dissolved with absolute ethyl alcohol, volume metering is carried out after dissolution to form a stock solution, and then PH adjustment is carried out. Two conditioners are included and sprayed in the initial heading stage and the full heading stage respectively, glumous flower degeneration can be reduced, the photosynthetic production capacity of the upper three leaves after flowering can be improved, assimilation substances are promoted to be transferred to grains, especially the filling state of vulnerable grains is improved, and the yield of the seedlings is increased. Finally, the grain number, the maturing rate, the grain weight and the yield are improved, meanwhile, the head rice rate of rice can be improved, and the protein content is reduced, so that the palatability of rice is improved.

The invention relates to the technical field of agriculture, in particular to an iron-rich yield-increasing foliar fertilizer for rice as well as a preparation method and an application method of the iron-rich yield-increasing foliar fertilizer. According to the specific technical scheme, the iron-rich yield-increasing leaf fertilizer for the rice is prepared from, by mass, 15%-25% of porous chitosan, 20%-30% of L-malic acid and 45%-55% of ferrous sulfate. The technical problem that in the prior art, the cadmium content of brown rice cannot be reduced while the iron content cannot be increased through a leaf fertilizer is solved.

Suppressing methane gas emissions from paddy rice cultivation is extremely important as a measure against global warming. The challenge here is to achieve both improved rice productivity and environmental protection. Specifically, this involves developing a device that can generate large quantities of high-concentration ultrafine bubble (UFB) water in a short time, by adding methane gas emission suppression to the UFB water. [Solution] The UFB generating apparatus of the present invention incorporates a variable-speed rotary stirring device into a UFB generation tank, and this tank is filled with sandy material. By supplying gas and water to this tank at high pressure, the sandy material layer of gas, water, and sandy material is liquefied. By rapidly rotating this liquefied layer with the rotary stirring device, the gas is confined in the pore water of the liquefied layer and then finely fragmented. Furthermore, by using sandy steel slag as the sandy material, in addition to the UFB effect, methane generation due to silica, lime, and iron oxide is suppressed and crop yields are improved.

The invention discloses bacillus tequilensis and application thereof, and belongs to the technical field of biology. The preservation number of the bacillus tequilensis is CCTCC (China Center For Type Culture Collection) NO: M 20251909, and the bacillus tequilensis has a remarkable inhibition effect on rice sheath blight disease pathogenic bacteria (Rhizoctonia solani). An in-vitro confrontation culture and potting verification method is adopted to prove that the strain can inhibit the growth of germs, and a plate confrontation experiment shows that the hypha growth inhibition rate of the strain to YM-Q-7 reaches 70.36%. The bacterial suspension (1 * 10 < 8 > CFU / ml) of the strain is used for performing root irrigation treatment on potted rice, the prevention and treatment effect reaches 28.85%, and a good application prospect is provided for prevention and treatment of rice sheath blight disease.

The invention belongs to the technical field of agricultural seedling raising, and relates to a light supplementing device for a rice three-dimensional seedling raising smart factory, the light supplementing device comprises a support and a light supplementing assembly arranged on the support, and a light adjusting assembly is in signal connection with the light supplementing assembly and is used for controlling the illumination intensity of the light supplementing assembly; the driving device is connected with the support and used for driving the support to rotate to change the illumination radiation range of the light supplementing assembly. The monitoring assembly obtains illumination intensity and a seedling picture; the controller is in signal connection with the dimming assembly, the monitoring assembly and the driving device. The controller drives the driving device according to a preset time sequence; the controller synchronously receives the illumination intensity and the pictures of the seedlings sent by the monitoring assembly, determines the growth stages of the seedlings based on the pictures of the seedlings, records the data of the growth stages and the illumination intensity of the seedlings according to a time sequence, compares the data with preset parameters, determines a light supplementing difference, and sends a light supplementing control instruction to the light adjusting assembly based on the light supplementing difference. The automatic level of light supplement can be improved, and the growth quality of seedlings is guaranteed.

The invention discloses an efficient composite intercropping method for pomegranate, dry rice and broad bean grain, which scientifically combines pomegranate (economic output), dry rice (grain output) and broad bean (partial economic output and biological nitrogen fixation and land cultivation), realizes functional complementation, and breaks through the single target limitation of the traditional intercropping mode. Through effective connection of crops for rotation of'broad bean sowing in winter and upland rice sowing in spring ', full utilization of light and heat resources and land in the orchard from winter to spring, summer and autumn in the next year is realized, and the multiple cropping index is remarkably improved; the pomegranate utilizes the upper-layer three-dimensional space, and the upland rice and the broad beans utilize the middle-lower-layer space, so that an efficient three-dimensional lighting structure and space combination are formed; the nitrogen fixation effect of the rhizobium of the broad beans can directly increase the nitrogen nutrition of the soil, the straw returning can increase the organic matters of the soil, and the built-in fertilizing mechanism of the orchard effectively relieves the consumption of the intercropping system on the soil fertility and ensures the sustainability of the mode.

The invention relates to the technical field of agriculture, in particular to a zinc-rich cadmium-reducing leaf surface blocking and controlling agent as well as a preparation method and an application method thereof. According to the specific technical scheme, the zinc-rich cadmium-reducing leaf surface blocking and controlling agent is prepared from, by mass, 10%-20% of gamma-chitosan, 20%-30% of L-malic acid and 50%-70% of zinc sulfate. The technical problem that in the prior art, the cadmium content of brown rice cannot be reduced through a leaf surface blocking and controlling agent is solved.

The invention relates to the technical field of rice planting methods, in particular to a nutrient solution for culturing Guizhou indica rice variety 'Guizhou Red No.1' as well as application and a culture method of the nutrient solution. According to the invention, a nutrient solution specially aiming at 'Guihong No.1' is researched and determined, the nutrient solution is added with micromolecular substances and Br with the final concentration of 0.1-0.6 [mu] M, GABA with the final concentration of 0.3-0.9 mM, melatonin with the final concentration of 0.5-5 [mu] M and salicylic acid with the final concentration of 10-20 [mu] M, and the nutrient solution specially aiming at 'Guihong No.1' can effectively improve the plant height, the biomass (fresh weight), the nitrogen content, the chlorophyll content and the dry weight of a single plant of 'Guihong No.1'. The nutrient solution provided by the invention can solve the technical problem of lack of an effective culture method in the prior art, and can better promote large-scale, intensive and factory planting management and large-area popularization and application of indica rice varieties in Guizhou by utilizing synergistic interaction and advantage complementation among different treatment modes.

The application discloses a rice tillering prediction method and device and a machine readable storage medium, and relates to the technical field of crop planting. The method comprises the following steps: acquiring forecast weather information after rice transplanting, determining first micro-environment weather information based on the forecast weather information and a preset green return period forecast weather-micro-environment weather corresponding relationship, and determining a prediction time when the rice enters a tillering period based on the first micro-environment weather information and a tillering starting weather threshold. Second micro-environment weather information is determined based on the forecast weather information, the tillering period forecast weather-micro-environment weather corresponding relationship and the prediction time when the rice enters the tillering period, effective tillering prediction time range and ineffective tillering prediction starting time of the rice are determined based on the second micro-environment weather information and preset effective weather data. Through the prediction of effective tillering and ineffective tillering of the rice, reference bases can be provided for agricultural operations such as application of tillering fertilizer, field exposure and inhibition of ineffective tillering, so that the yield of the rice is improved.

The invention belongs to the technical field of rice cultivation and soil improvement, and particularly relates to a fertilization method for acid rice field soil improvement and application thereof. According to the method, an organic fertilizer is used for replacing 25% of conventional formula fertilizer (formula fertilizer containing nitrogen, phosphorus and potassium), and medium trace elements of magnesium, boron and zinc are applied in a combined manner; or medium trace elements such as magnesium, boron and zinc are additionally applied on the basis of application of a conventional formula fertilizer, and quick lime is added, so that the problem of aggravated soil acidification caused by application of a single chemical fertilizer is relieved, the rice yield is increased, meanwhile, the content of exchangeable acid in soil is reduced, and the total amount of exchangeable salt-based ions in the soil and the effective state content of elements are increased, thereby increasing the pH of the soil and improving the yield of the rice. The acid resistance of the soil is enhanced, and the acid soil is effectively improved.

The application discloses a kind of rice field soil arsenic pollution reduction repair method, comprising the following steps: S1, rice seedling raising;S2, in 1-2 weeks before transplanting, to the arsenic pollution rice field soil to be repaired modified biochar is added, then waterlogging treatment is carried out;S3, 1-2 weeks later, shallow water rice transplanting is carried out, and 3-5 days are waited for rice seedling to return green, and water is intensified management;S4, in early heading stage of rice, aboveground rice straw is harvested from field, then soil ploughing is deep ploughing and broken, irrigation is carried out, so that root system floats to water surface, and is all collected from field;S5, level field and drain to surface layer contains shallow water, repeat steps S2-S4.The application is loaded on biochar by microorganism and combined with the method of water intensification management plant absorption, in heading stage of rice, aboveground straw enriched with arsenic is removed from field with underground root system as a whole, and combined with periodic repetition operation, the total amount of arsenic in soil is substantially reduced.

The invention provides a tail water relay treatment method for fish and rice rotation in a pond. The tail water relay treatment method comprises the following steps: injecting new water into a pond culture area before the beginning of a pond culture period, stocking fish fries, periodically patrolling the pond, measuring water quality, feeding baits, and carrying out fish culture operation; rice is planted in the rice planting area, sowing is conducted in early May, rice transplanting is conducted in mid-to-late May, bottom mud in the pond culture area is used as base fertilizer, and water circulation between the pond culture area and the rice planting area is completed through a first water path system and a second water path system which are arranged between the pond culture area and the rice planting area. By means of in-situ management and control of the water body and ex-situ purification after discharge, the environment of the aquaculture water body is kept stable, discharged tail water is ecologically utilized and treated, up-to-standard discharge is achieved, healthy growth of fishes and reduction of the aquaculture cost are guaranteed, a technical path and support are provided for innovation of an ecological agricultural product production mode, and the method is economical and practical.

The application discloses a seedling raising method for early rice and regenerative rice and relates to the technical field of agricultural planting. The technical points of the application comprise the following steps: S1, seed soaking and germination, through seed disinfection by sunning, seed soaking disinfection and seed soaking, the pretreatment before sowing is completed; S2, sowing, through ridge forming, tray arranging, sizing and sowing, the sowing treatment is completed; S3, seedling compartment disinfection, after sowing, before film covering, one-time spraying disinfection is carried out; S4, film covering, a bamboo arch is inserted around the seedling tray, and the film is covered on the bamboo arch; S5, drainage, the compartment ditch and the surrounding ditch are dredged, the clear water in the ditch is drained, and the moisture in the seedling compartment is drained. The application selects "cold tail and warm head" when the low-arch film is concentrated in the field, adopts direct sowing of the bright chest valley, creates good water, fertilizer, air and heat conditions, promotes uniform emergence, is convenient to operate, is a seedling raising method with the advantages of labor saving, easy operation, good safety and high uniformity.

The invention discloses a method for strengthening three-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in rice field soil through sulfurized zero-valent iron, and belongs to the technical field of rice field soil pollution remediation. The sulfurized zero-valent iron (S-ZVI) is prepared according to the sulfur-iron ratio of 0.1-0.2; the S-ZVI is mixed with the contaminated soil, and rice is cultivated in cooperation with a specific fertilization and irrigation scheme. According to the method for strengthening the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction in the rice field soil through the sulfurized zero-valent iron, by optimizing preparation and application of the sulfurized zero-valent iron, under the synergistic effect of chemical reduction and microbial degradation, the triple-effect synergy of chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is expected to be achieved, and the effect of strengthening the rice field soil chloramphenicol degradation, rice yield increase and greenhouse gas emission reduction is achieved. And an important means is provided for degradation of antibiotics in rice field soil.

The invention discloses a method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding, and belongs to the technical field of rice, soft-shelled turtle, fish and shrimp comprehensive planting and breeding. After rice in the rice field is harvested, straw is smashed and returned to the field, a hidden survival place is provided for crayfish seedlings, rotten straw and derived zooplankter provide bait for crayfish and fish, and the straw decomposition rate is increased by eating; after water in the rice field module becomes serious along with straw rotting, the water is discharged into the culture pond through tail water treatment engineering treatment, and the water fertility of the pond is increased; meanwhile, after eutrophication of the water body in the culture pond, the water body is discharged into the rice field after being treated by a tail water treatment project and flows into the culture pond again after being further purified by the rice field. According to the constructed mode, the straw is converted into the organic fertilizer through the crayfish and the fish, and the paddy field is adopted for purifying pond culture tail water. No breeding wastewater is discharged in the mode. The investment of aquatic product baits and rice field fertilizers is reduced, and the income and quality of rice and fishes are increased.

The application provides a system and method for improving proliferation and release effect and nearshore ecological connectivity, the system comprising: a high-density seedling cultivation area for cultivating seedlings and discharging tail water; an ecological rice field area for introducing received tail water into a rice field and discharging purified tail water; an ecological conservation area for receiving purified tail water, regulating water level by setting an intelligent dam body, and temporarily storing and conserving the purified water; and an off-dike wetland area connected with the ecological conservation area, for providing an adaptation and transition place for seedlings before release. The application realizes water quality recycling, ecological purification and seedling adaptation and release in stages by constructing a proliferation and release unit system connected with each other, thereby significantly improving seedling survival rate and release effect, and realizing the synergistic gain of ecology and economy.

The invention relates to the technical field of weed rice prevention and control, in particular to a comprehensive prevention and control method for rice field weed rice, which comprises the following steps: acquiring rice field environment and seed state data, extracting characteristics containing a multi-factor coupling relationship after processing, and inputting a weed rice dormancy-germination coupling prediction model to accurately output a germination probability and a time window. And a self-adaptive prevention and control scheme is generated and issued according to the self-adaptive prevention and control scheme and is cooperatively executed by a machine system, an irrigation system and a medicament system, and finally data feedback after execution is updated to form a closed loop. According to the method, the problem of low prevention effect caused by inaccurate germination prediction, prevention and control decision stiffness and single execution means of the weedy rice is fundamentally solved, accurate prediction of germination rules, intelligent judgment of prevention and control opportunities and cooperative control of multiple measures are realized, and the prevention and control effect and ecological economic benefits are remarkably improved.

The invention discloses application of bacillus megaterium and a biological fertilizer thereof in rice planting, and relates to the technical field of microorganisms. The bacillus megaterium is preserved in the China General Microbiological Culture Collection Center on July 10, 2025, and the preservation number of the bacillus megaterium is CGMCC (China General Microbiological Culture Collection Center) NO.35179. The bacillus megaterium has the advantages that the bacillus megaterium is preserved in the China General Microbiological Culture Collection Center on July 10, 2025; the strain is a plant growth-promoting bacterium and has a good rice growth-promoting effect, and when the prepared biological fertilizer is applied to the rice planting process, compared with a control group, the tiller number of rice is increased by 64.44%, the plant height is increased by 2.77%, and the leaf chlorophyll content is increased by 8.38%. The bacillus megatherium provided by the invention and the biological fertilizer prepared by strain fermentation have the advantages of greenness, safety, high efficiency and the like, and have a better application prospect in the aspect of agricultural production.

The invention discloses a method for preventing and controlling cadmium accumulation of rice grains and strengthening zinc concentration at the same time, and relates to the technical field of agricultural environment and crop nutrition regulation, the single regulation defect is precisely overcome through the synergistic effect of a compound foliage regulator, salicylic acid and a zinc amino acid chelate are compounded to form the regulator, and the regulation effect is improved. Salicylic acid is utilized to induce synthesis of plant chelating peptide in rice, cadmium vacuole partitioning is enhanced, cadmium transporter protein expression is reduced, and migration of cadmium to grains is prevented and controlled from a transport path; meanwhile, zinc is rapidly supplemented by means of the efficient absorption characteristic of the zinc amino acid chelate, and the zinc amino acid chelate can cooperate with a salicylic acid signal to further inhibit cadmium distribution, so that the problems that a single zinc fertilizer cannot resist cadmium and single salicylic acid cannot be rich in zinc are solved, cadmium resistance and zinc enrichment are synchronously promoted, and meanwhile, dry-wet alternate irrigation in the booting stage and the mature stage is matched, so that the yield is increased. By regulating the soil moisture state, the physiological metabolism environment of the rice is optimized, the absorption and utilization of a regulating agent are promoted, and the vacuole partitioning effect of cadmium and the phloem transfer efficiency of zinc are enhanced.

The application discloses a reverse making method of terraced rice picture and belongs to the field of straw picture, and comprises the following steps: S1, breeding color rice varieties with different color and plant height, and carrying out planting and management according to the characteristics of terraces; S2, designing a plane pattern by using PS and AI; S3, importing the plane pattern into CAD and adjusting the angle and perspective; S4, measuring the position and range of the rice field picture area field plot and the height difference of the field ridge; S5, discharging the whole pattern in the reverse direction of the field ridge by using the Ovi interactive map, and adjusting the position and angle of the field ridge in the picture to be optimal; and S6, placing the converted pattern in the rice field by using a positioning instrument and placing and planting. The terraces are curved, the field ridge is high, the field plot surface is small, and the rice field picture cannot be made like the basin or the plain, the application adopts a reverse terraced picture making technology, the technology overcomes the disorder and the broken feeling caused by the large height difference of the terraces, the small field plot and the large bending degree, and improves the overall viewing effect of the picture.

The invention discloses a rice-wheat rotation area liquid manure efficient returning planting method, which comprises the following steps: step 1, precisely metering and applying liquid manure subjected to innocent treatment, step 2, precisely applying the liquid manure by stages according to the fertilizer requirement rules of rice and wheat in different growth periods, and step 3, performing returning operation by combining injection type deep application and movable sprinkling irrigation equipment. 4, carrying out matched management after the liquid manure is applied; 5, carrying out a dynamic management closed loop of measurement, calculation, determination, application, monitoring and regulation; through system implementation and dynamic closed-loop management of three precise dimensions of opportunity, method and proportioning, ammonia volatilization and nitrogen and phosphorus runoff loss are greatly reduced, agricultural non-point source pollution is effectively controlled, soil organic matter is stably increased, chemical fertilizer investment can be remarkably reduced through precise replacement, the production cost is reduced, and the economic benefit is increased. Meanwhile, fertilizer utilization rate is increased, annual yield of rice and wheat is increased, and income is increased.

This invention discloses a method for preparing a rice seedling substrate based on rice and wheat straw, its products, and applications. This application converts rice and wheat straw into earthworm castings, optimizes the earthworm castings, and prepares a rice seedling substrate more suitable for rice seedling cultivation practices in the middle and lower reaches of the Yangtze River. The water retention capacity of this seedling substrate is significantly superior to that of general seedling substrates. When using the "running water" irrigation method, it can continuously supply water to the seedlings even without timely irrigation, ensuring robust root growth; it can continuously control the pH of the seedling substrate, significantly improving the seedling's root development; and it can increase nutrient retention, ensuring the formation of strong seedlings.

The application discloses an antibacterial peptide for preventing and treating rice blast and application thereof, and relates to an antibacterial peptide SAFM160 for preventing and treating rice blast, which is used for improving the resistance of rice to rice blast fungus, and can be used for preparing a medicine for resisting rice blast fungus and application in preventing and treating rice blast fungus infection. The application finds that the polypeptide SAFM160 can be used as a medicine for preventing and treating rice blast. The antibacterial peptide SAFM160 has obvious inhibiting effect on appressorium of rice blast fungus, and when the concentration of the SAFM160 is 0.2 ug / ul, the appressorium formation rate of spores of the rice blast fungus is 0.57%. Therefore, the antibacterial peptide SAFM160 can be used for improving the resistance of rice to rice blast fungus.

The invention relates to the technical field of aquaculture, and provides an ecological breeding circulating system which comprises a breeding pond, a circulating system, a circulating system and a control system. The water inlet side of the rice field area is connected with the drain outlet of the culture pond; the water inlet side of the aquatic plant area is connected with the water outlet side of the rice field area; the water inlet side of the ecological pond is connected with the water outlet side of the aquatic plant area; the water inlet side of the reservoir is connected with the water outlet side of the ecological pond, and the water outlet side of the reservoir is connected with the water inlet side of the culture pond. The aquatic plant area is composed of the aquatic plant sub-areas which are interconnected through the connecting pipes, and the number and sequence of the aquatic plant sub-areas through which tail water flows can be flexibly changed by controlling connection and disconnection of the connecting pipes, so that refined and targeted purification of the tail water is realized, and the treatment efficiency and adaptability of the system are effectively improved.

The application provides a foliar control agent for reducing cadmium accumulation in rice as well as a preparation method and application thereof, and belongs to the technical field of rice planting. The foliar control agent comprises the following raw materials in the following concentrations: 2-4 g / L zinc sulfate, 1-2 g / L manganese sulfate, 1-1.5 g / L cysteine and 0.008%-0.012% v / v Tween 80. The foliar control agent can efficiently inhibit the absorption and transport of cadmium in rice, significantly reduce the accumulation of cadmium in rice grains, and ensure food safety. The foliar control agent can be sprayed by a drone, which is fast and time-saving. The foliar control agent is environmentally friendly, and the raw materials are simple and easy to obtain, so the foliar control agent has significant popularization and application value.

The invention discloses a growth-promoting methylobacterium R5018 strain and an application of the growth-promoting methylobacterium R5018 strain. The strain R5018 is obtained by separation from a rice phyllospheric microflora and methanol domestication and screening, and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M20252544. The rice growth-promoting microbial inoculum prepared from the strain can be stably colonized at phyllosphere and promote the growth of overground and underground parts of rice through seed soaking, foliage spraying or combined application of the seed soaking and the foliage spraying, and the ear number, the grain number and the yield are remarkably increased. Compared with the prior art, the strain disclosed by the invention is derived from a rice phyllospheric bacterial community, is high in adaptability, environment-friendly and efficient, provides a new microbial technical scheme for high-yield cultivation of rice, and has a wide popularization and application prospect.