94results about How to "Increase growth rate" patented technology

The invention relates to a method for culturing microalgae, which is characterized by comprising the following steps of: (1) fermenting to produce acid, enabling the supernatant which is acid liquor obtained after fermentation to flow to a culture device, and collecting the produced gas mixture in a gas storage tank; (2) inoculating the cultured microalgae to the acid liquor contained in the culture device for heterotrophic culture; and (3) circularly introducing the gas mixture in the gas storage tank to a photobioreactor for aerobic autotrophic culture. In the invention, the acid production stage through methane fermentation and the microalgae culturing process are coupled, and heterotrophy and autotrophy are combined; thus, oil-rich microalgae with high biomass is cultured, and meanwhile, a hydrogen-rich gas with high concentration can be obtained. The method is mainly used for culturing the oil-rich microalgae.

The invention discloses a cattle and sheep enclosure for cattle and sheep breeding, comprising a house body, a roof, a rotating motor and a screw rod; the top of the house body is provided with a beam, and the top of the beam is provided with a roof; the bottom of the beam is provided with a roof; An electric sliding rail is provided, and an electric sliding block is slidably arranged in the electric sliding rail; the bottom of the electric sliding block is sequentially provided with a humidity sensor, a camera and an ammonia gas sensor from left to right; the right side wall of the inner cavity of the house is arranged A first transverse plate and a second transverse plate are arranged on the upper part, and one end of the screw rod penetrates through the first transverse plate and extends to the bottom of the first transverse plate and is rotatably connected with the second transverse plate; , Through the cooperation of exhaust fan, rotating motor, screw rod and screw sleeve, the exhaust fan can evenly discharge the ammonia gas in the cattle and sheep enclosure, reduce the ammonia concentration in the cattle and sheep enclosure, and improve the cattle and sheep enclosure. The growth rate also reduces the probability of disease in cattle and sheep.

The invention relates to a pond artificial domesticating method for Acrossocheilus yunnanensis and belongs to the technical field of fish culturing. The method comprises the following steps of selecting and preparing a domesticating pond, i.e. selecting a rectangular cement pond as the domesticating pond, planting hornworts in the pond, wherein the area of the hornworts accounts for one third that of the whole pond, and simulating the natural environment; filling wild fish fingerling into the pond, feeding and domesticating the wild fish fingerling, and performing daily management on the wild fish fingerling, i.e. filling a complete formula feed with a particle size of 1.5mm and a protein percentage of 35 percent, wherein the daily feed filling amount accounts for 2 to 3 percent of the weight of the fishes, enabling water in the domesticating pond to slowly flow, exchanging the water body every 3 to 4 days, and filling 2 to 3g of allicin or Vc (vitamin c) for fish every one kilometer of feed every 20 days for 2 to 3 days continuously; preventing and controlling fish diseases, i.e. spraying povidone iodine and ethylene double ammonium dithiocarbamate into the pond to control every 15 days to prevent and control bacteriosis and balantidiasis, wherein the prevention dosage is 50 to 60ml per 0.0667 hectares, and the controlling dosage is 80 to 100ml per 0.0667 hectares. The survival rate and the growing speed of the wild Acrossocheilus yunnanensis can be effectively improved by the method, and the method is simple, and is convenient to use and popularize.

The invention discloses a preparation method of a gold nanoparticle modified boron-doped diamond electrode and application, and relates to a preparation method of the gold nanoparticle modified boron-doped diamond electrode and the application. The invention aims to solve one of the problems that when a boron-doped diamond prepared by a method modifies other substances on the surface of the boron-doped diamond, the bonding force of the boron-doped diamond and the substances is poor, and solve the other problem that the electrochemical detection sensitivity of an boron-doped diamond electrode material is low, and the existing modification method can hinder the electrochemical performance of the boron-doped diamond material. The preparation method comprises the following steps that 1, a boron source is prepared; 2, a boron-doped diamond film is prepared; and 3, coating film and annealing are conducted. The preparation method and the application are used for preparing a gold nanoparticlemodified boron-doped diamond electrode and the application.

The invention relates to an open-type culture method of microalgae. The method is as below: a conventional culture method and conditions are used for microalgae culture, and a plant extract is directly added in the microalgae culture medium at the beginning of microalgae cultivation, wherein the plant extract is one or more selected from a neem extract, a Melia toosendan extract and a angled bittersweet extract, and the addition is 5-80 mg / L. The method provided by the invention can solve the problem of enemy creature pollution in open-type culture of microalgae and effectively control pollution of infectious microbes and pests in open-type cultivation, and also has the advantages of low cost, safety, reliability, and no resistance to subsequent subculture.

The invention discloses an oxygen atmospheric control making method of a-axle oriental YBCO hyperconductive thick film, which is characterized by the following: utilizing liquid-phase epitaxial device to make high-crystal product; allocating Ba-Cu-O powder according to the rate of Ba and Cu at 3: 5; grinding; sintering; placing in the Y2O3 copple to fuse; obtaining Y-Ba-Cu-O flux; changing 100% pure-oxygen atmosphere in the sealed furnace; adjusting flux temperature in the copple lower than YBCO peritectic fusing temperature by 5-20K; obtaining high-quality a-axle YBCO film on the liquid-phase of (110) single-crystal neodymium gallium acid base.

The present invention relates to a method for growing, rapidly and massively ex vivo, cells collected from a living subject to provide a safe and effective pharmaceutical preparation for biological tissue repair/regeneration. Specifically, the present invention relates to a method for growing cells in a sample collected from a living subject by culturing the cells in a medium containing allogeneic (including autogenic) serum. Preferably the allogeneic serum has been determined as being negative for a serum tumor marker and/or an infectious factors, and the amount of the anticoagulant (e.g., heparin, a heparin derivative, or a salt thereof) added to the collected sample is less than 5 U/mL with respect to the volume of the sample or the amount of the anticoagulant in the medium at the start of culture is less than 0.5 U/mL. The present invention further relates to use of the method.

The invention relates to insect feed and a feeding technique, in particular to artificial feed for Athelis lepigone larvae, a preparation method for the artificial feed and a simplified feeding method using the feed. The artificial feed has the advantages that the formula components and the content are reasonable, the nutrient substances are comprehensive, Amaranthus retroflexus leaf powder is used for artificial insect feeding for the first time, the nutrient conditions required by Athelis lepigone to smoothly develop and complete the entire generation can be fully satisfied, and the indexessuch as development speed and survival rate of the larvae, pupa weight and egg laying amount of imagoes can be obviously improved.

The invention discloses a preparation method of a diamond heat sink piece, and relates to a preparation method of diamond. The method is used for the field of heat sink. The method solves the problems that according to an existing MWCVD method, the growth rate of diamond production is slow, the surface is rough, and the heat conductivity is low. The preparation method comprises the steps that firstly, a silicon wafer is cut, and after the silicon wafer is ultrasonically cleaned, a clean silicon wafer substrate is obtained; secondly, the surface of the clean silicon wafer substrate is evenly coated with nano diamond suspension liquid; thirdly, the silicon wafer coated with the diamond suspension liquid is placed in an MWCVD device, and after hydrogen and methane are led in the device, chemical vapor deposition is carried out; and fourthly, a mixed solution of HNO3 and HF is utilized for carrying out corrosion to remove the silicon substrate, and after cleaning, the diamond heat sink piece is obtained. The method that the surface is coated with the nano diamond suspension liquid is used for obviously improving the growth rate of a diamond film, the growth rate reaches 2 micrometers per hour to 5 micrometers per hour, the roughness of a growth surface can be reduced to 600nm, the heat conductivity is high, and the method conforms to the standard of artificial diamond heat sink.

The invention discloses a method for stably growing a GaN crystal material at high rate in HVPE. The method comprises the following steps: when the HCl gas introduced into a Ga boat containing liquid Ga goes through an improved HCl gas circulation way, the HCl gas is sufficiently mixed with metal Ga for reacting to generate a GaCl gas; and after escaping from the top liquid level of the liquid Ga, the GaCl gas is guided into a growth zone and reacts with NH3 to generate GaN for growth. In the invention, since the HCl is prevented from directly entering the growth zone and approaching the seed crystal, the growth rate of the GaN crystal material is increased; and due to the increase of reaction time, the problems of GaCl concentration change in the growth zone and consequent decrease of the GaN growth rate caused by the Ga liquid level decrease can be improved so as to enhance the growth stability of GaN crystal.

The present invention discloses a marble goby compound feed containing fermented silkworm chrysalis and a use thereof. The compound feed does not contain fish meal, and comprises fermented silkworm chrysalis, alpha-starch, wheat flour, wheat gluten flour, zeolite powder, calcium biphosphate, salt and premix for carnivorous fish. The fermented silkworm chrysalis is prepared by adding mixed meal into the silkworm chrysalis, inoculating microbe, adding carbon sources and inorganic salts, fermenting and culturing the mixture. The microbe is a mixed bacterio-liquid containing bacillus subtilis, bacillus acidi lactic and yeast. According to the present invention, the marble goby compound feed does not contain any fish meal and fish meat products, is produced from fermented silkworm chrysalis, can completely replace pure live fish and ice fish for breeding, increases survival rate and growth rate of marble goby, improves quality of fish meat, significantly increases the economic benefits of aquaculture, and promotes the sustained, healthy and stable development of marble goby aquaculture.

The invention discloses an efficient culturing method for grass carp. The method includes the steps of (1) cultivating fingerling, wherein cultivating fingerling includes fry throwing and breeding; (2) dividing the fingerling into ponds, wherein after the fingerling is bred for 15-20 days, the fingerling with the body weight larger than 50 g is screened out and bred in a single pond, the fishpond is disinfected, water is injected into the fishpond by 1.5-1.7 m, 15000-20000 fries are thrown into the water surface of each mu, and the fingerling is immersed in 3% salt water for 3-5 min; (3) breeding the fingerling, wherein the fingerling is fed with fodder twice a day, the fact that the fingerling eats up the fodder within 1-1.5 hours is taken as the criterion of the feeding amount each time, and the fingerling fodder comprises, by weight, 15% of fish meal, 40% of soya-bean cakes, 30% of vegetable cakes and 15% of wheat flour; the fingerling is thrown into a mature fish pond after being fed for 20-25 days and can be cultured into marketable fish in the same year. By means of scientific fingerling cultivation, the grass carp grows efficiently, it is ensured that the marketable fish can be obtained in the same year, and the annual output of the grass carp is effectively increased.

The present invention relates to a self-circulation anaerobic reactor, and belongs to the technical field of brewing industry sewage treatment. The self-circulation anaerobic reactor mainly includes a tank, wherein the internal of the tank is provided with a gas collector through a center support column, the tank is divided into an upper reaction chamber and a lower reaction chamber through the gas collector, the top of the tank is provided with an arched gas collection shield through an overflow weir, the bottom of the tank is provided with a material feed distributor, a water inlet pipe, a sludge discharge pipe and a side enter type stirrer, four groups of self-circulation systems are arranged inside the tank, each group of the self-circulation system comprises a back flow pipe, a biogas pipe and a gas stripping pipe, the upper end of the back flow pipe is connected with a gas-liquid separator arranged on the upper reaction chamber, the lower end of the back flow pipe is connected with a swirling water distribution device arranged on the lower reaction chamber, one part of the biogas pipe is directly communicated with the gas-liquid separator and the upper reaction chamber, the other part of the biogas pipe is communicated with the gas-liquid separator and the upper reaction chamber through a biogas collection pipe, and the gas-liquid separator is connected with the gas collector through the gas stripping pipe. The self-circulation anaerobic reactor is mainly used for high slag and high solid content sewage treatment in brewing industry.

The invention relates to a method for improving the ratio of female fish in cynoglossus semilaevis cultured fingerlings. The method comprises the following steps of: 1) screening male parent fish; 2) performing artificial propagation and family establishment; 3) cultivating fish fries with different families and detecting the ratio of male and female fish; and 4) cultivating a high-female and fast-growing family and propagating, wherein a genetic marker used in the step 1) is SChen-SSR2. According to the invention, a method for identifying cynoglossus semilaevis genetic female fish and genetic male fish is established by the SChen-SSR2 marker, and then a method for improving the ratio of female fish in cynoglossus semilaevis cultured fingerlings is established by breeding generations fromthe high-quality normal male fish or establishing a cynoglossus family with a high female ratio bred by the families. The method provided by the invention can be used for solving the most common problems of too high ratio of male fish and too low ratio of physiological female fish in the cultured populations, and thus the method is of great importance in the scale production and cultivation of high-quality cynoglossus semilaevis fingerlings, the improvement of cultivation yield and economic benefit, and the promotion of continuous and rapid development of the cynoglossus semilaevis cultivation industry.

The invention discloses a polyculture feed for eel fries and loach fries. The polyculture feed comprises the following components in parts by weight: 7-9 parts of fish meal, 3-4 parts of soybean meal, 2-5 parts of corn meal, 1-2 parts of manure and 0-1 part of earthworm. The feed disclosed by the invention is designed against fry varieties, combined with a modern feed processing technology and matched with the decomposed manure and earthworms, and then the fries of eels and loaches can be simultaneously fed; and according to statistics, the feed disclosed by the invention is utilized for feeding under polyculture, the growth speed of the eels is increased by 15% in comparison with that by adopting the traditional feed, the body weight gain is 5.5%, and the growth speed of the loaches is increased by 12% in comparison with that by adopting the traditional feed.

The invention belongs to the field of agriculture, particularly relates to a black fungus cultivation method and provides a scientific and reasonable high-yield black fungus cultivation method. The black fungus cultivation method comprises steps as follows: (1), strain production: stains include sawdust strains and branch strains, and for the sawdust strains, a culture medium is prepared from sawdust, wheat bran and the like; (2), fungus wood preparation: fungus wood is prepared after selection of a cultivation area, and common fungus wood species include the family Fagaceae and birch tree species; (3), inoculation: tools for inoculation are disinfected with ethyl alcohol in advance and the fungus wood is drilled firstly; (4), planting management: stacking is performed firstly for hypha cultivation, the inoculated fungus wood is stacked in a # shape or a left-turned E shape; (5), scattering and arranging: a spread arranging mode is generally adopted, one end or two ends of the fungus wood is or are erected by sleepers, the fungus wood is neatly arranged on a cultivation field, and black fungi can be lifted to a frame after about one month.

The invention provides a device for epitaxial growth of silicon carbide. The cylindrical device is sequentially provided with a heating coil, a quartz wall, a graphite soft felt, a graphite support layer and a reaction cavity surrounded by the graphite support layer from outside to inside, wherein a gas inlet device and a gas outlet device are respectively arranged at two ends of the reaction cavity, a clad layer is plated on the inner wall of the graphite support layer, L-shaped gas supplementing tubes which are arranged side by side are parallel to the cylindrical device in axial direction, pass through the graphite soft felt and vertically pass through the graphite support layer, and clad layers are plated on the inner walls of the gas supplementing tubes. The gas provided by the gas supplementing tubes of the device compensates the lower part of the gas flow, so that the concentrations of the upper part and the lower part of the gas flow are generally the same, and the uniformity of the thickness of an epitaxial layer of silicon carbide is improved; gas phase nucleation in gas is inhibited, the growth rate is improved, and ultra thick silicon carbide epitaxial wafers with uniform height can be rapidly prepared. The device has a simple structure, is simple to manufacture and implement, has low manufacture cost, is easy to install and operate, and is applicable to industrial production; the epitaxial growth rate is high, and the quality of silicon carbide is good.

The invention relates to a carp feed and a processing method thereof and belongs to the technical fields of feeds and processing methods thereof. The carp feed is prepared from the following raw materials in parts by weight: 15-20 parts of mussel powder, 22-30 parts of soybean cake, 10-15 parts of maize germ cake, 8-15 parts of peanut meal, 8-15 parts of rice bran, 5-10 parts of buckwheat powder, 5-9 parts of corn flour, 5-10 parts of silkworm chrysalis, 8-12 parts of fish meal, 3-9 parts of rock flour, 5-10 parts of table salt, 3-5 parts of garlic, 2-5 parts of mugwort leaves and 1-3 parts of chastetree fruit. The carp feed disclosed by the invention has the advantages that nutrient substances such as rich protein and various vitamins are contained in the added raw materials, so that nutrients of carps fed in pools can be timely supplemented and the growth rate and the weight gain rate can be increased; moreover, the liver function of the carps can be improved by part of traditional Chinese medicines, the detoxifying function and the immune function can be enhanced, so that the healthy and rapid growth of the carps can be guaranteed and the market requirement is met.

The invention relates to a special composite microbial fertilizer for tobacco use and its preparation method. The fertilizer comprises a composite microbial solution and an organic-inorganic compound fertilizer that total 100% by weight percent. The composite microbial solution is mixed by a bacterial solution of new bacillus laterosporus and a bacterial solution of bacillus subtilis. The special fertilizer of the invention can provide a solution to the problems of excessive application of chemical fertilizers, poor pertinence, imbalanced nutrition, unstable application effect of existing microbial fertilizers for tobacco, and can achieve obvious increase of production and income after application.

The invention relates to a culture method for microalgae. According to the invention, a conventional culture method and conventional culture conditions are employed; in an initial culture stage of microalgae, a plant extract is added in a microalgae culture medium, the plant extract is one or more selected from the group consisting of a garlic extract, a capsicum extract and a peach leaf extract, and the addition amount of the plant extract in the culture medium is 10 to 100 mg/L. The method provided by the invention can overcome problems in pollution treatment in open culture of microalgae, and the method has the advantages of a low price, safety, reliability and capacity of effectively preventing and treating pollution by mixed fungi and insect diseases and promoting growth of microbes and output of a product of value.

The invention discloses a preparation method of tea fermentation bacterium yeast. The preparation method comprises the following steps: weighing tea, adjusting the moisture content, after sterilizing, cooling to the room temperature, inoculating the tea with eurotium, and placing in an incubator for first post-fermentation culture, so as to obtain triangular flask bacterium yeast; weighing tea, adjusting the water activity to be 0.86-0.95, after sterilizing, cooling to the room temperature, and uniformly mixing the primarily treated tea with the triangular flask bacterium yeast for secondary post-fermentation culture according to the ratio of the primarily treated tea to the triangular flask bacterium yeast in parts by weight being 100: (0.5-3); fermenting for 5-7 days to obtain the tea fermentation bacterium yeast. The invention also provides a method for carrying out post-fermentation on tea by using the tea fermentation bacterium yeast. The tea fermentation bacterium yeast disclosed by the invention belongs to a solid leavening agent, and compared with the eurotium spore suspension, the tea fermentation bacterium yeast has the following advantages: the change of tea water activity and the temperature and humidity of the environment is avoided, the product is enabled to be closer to the original quality of tea, and the quantity of eurotium is increased.

The invention relates to the technical field of biological metabolism engineering, particularly a metabolism and signal pathway of a microalga growth regulator, and a verification method and application thereof. A metabolomic means is utilized to verify microalga hormones, and a functional genomic means is utilized to explain the metabolism channel, signal transmission pathway and regulation network of the microalga hormones; a transcriptomic means is utilized to verify key enzymes and proteins related to hormone metabolism and signal transmission in the microalga stress tolerance and oil synthesis process; and metabolism engineering and chemical engineering means are utilized to regulate the hormone metabolism and signal pathway, thereby optimizing the physiological characters of the algae and plants. The invention provides a method for verifying microalga hormones and metabolism pathway/signal pathway thereof. The method can explain the hormone metabolism enzymes and signal proteins closely related to physiology of algae as well as related regulation mechanism, and is used for improving the agronomic characters of organisms.

The invention discloses clone and application of a plant seed specific expression promotor OsSee1, and further provides an expression cassette comprising the promoter, a plant expression vector and application of the plant seed specific expression promotor OsSee1 to plant genetic engineering. Through the amplification, separation, analysis, utilization and experimental verification of special genomes of Oryza sativa L cv.Nipponbare by an inventor, a section of DNA sequence, namely the rice seed specific expression promotor OsSee1, with a special function is obtained, and the special function is verified. The promotor provided by the invention can specifically drive the expression of exogenous genes in rice seeds, so that in the gene engineering, when the promotor is used for replacing a constitutive promoter to drive a target gene, not only is the target gene specifically expressed, but also invalid expression of other genes is avoided, and the effect of improving the rice quality is realized.

The invention provides a crystal growth assembly for preparing single crystals through a PVT method. The crystal growth assembly comprises a crucible and a heating device located above the crucible. The heating device is provided with a plurality of concentrically arranged annular heating temperature zones, so that the axial temperature gradient in the crucible is adjusted by controlling the overall heating temperature of the plurality of concentrically arranged annular heating temperature zones in the heating and/or crystal growth stage of single crystal preparation; and the radial temperature gradient in the crucible is adjusted by controlling the heating temperature of each annular heating temperature zone in the plurality of concentrically arranged annular heating temperature zones. According to the device for preparing the silicon carbide single crystal, the axial temperature gradient and the radial temperature gradient of the temperature field in the crucible can be controlled, so that the growth rate of the crystal is increased, the stable growth environment of the crystal is ensured, a relatively large crystal edge diameter gradient is maintained, the edge quality is improved, and meanwhile, the silicon carbide single crystal with a relatively large size is obtained.

The invention discloses lean type pig feed. The lean type pig feed is characterized by comprising raw materials in percentage by weight as follows: (1) 65%-70% of corn, 10%-15% of groundnut cakes or soybean cakes, 10%-15% of wheat bran, 5%-8% of fish meal, 1%-3% of yeast powder, 1%-2% of bone meal, 0.5%-1% of multi-vitamins and 0.5%-1% of salt for pigs in a piglet stage with the weight of 10-20 kg; (2) 60%-65% of the corn, 10%-15% of the groundnut cakes or the soybean cakes, 10%-15% of the wheat bran, 5%-10% of straw powder, 6%-10% of the fish meal, 2%-4% of alfalfa meal, 1%-1.5% of the bone meal and 0.5%-1% of the salt for pigs in an early fattening stage with the weight of 21-35 kg. The formula is reasonable, reasonable configuration is performed according to the growth characteristics of the pigs, and the lean meat percentage is increased.

The invention discloses a camellia oleifera planting method. The camellia oleifera planting method comprises the following planting steps: (1) soil management; (2) cutting seedling; (3) transplantingand field planting; (4) field management. The method is applicable to planting of camellia oleifera, the survival rate of the camellia oleifera planted with the method is high, fruiting is achieved inthree years, the fruiting rate is high, and the yield of camellia oil is greatly increased.

The invention discloses a method for planting silicon-enriched Paitan Chinese mesona herb. Seedlings are cultivated with nutrient soil prepared by diatomite which provides nutrients and silicon; during the growth of the Chinese mesona herb, silicate solution and silicon-containing nutrient solution are added so as to provide silicon source to the plants, therefore, inorganic silicon is converted to organosilicone which is easy to absorb for people; plants are rich in silicon.

The invention provides a growing method of a Y<1-x>RE<x>BCO superconducting layer of a coated conductor and particularly relates to a method for preparing the Y<1-x>RE<x>BCO superconducting layer on a lanthanum aluminum oxide (LAO) substrate through a magnetron sputtering method. The thickness effect of a YBCO superconducting layer is overcome effectively, and the superconducting current-carrying capability is improved. Firstly, a Y<1-x>RE<x>BCO magnetron sputtering target is prepared by partially replacing Y with Sm or Gd; then a reaction chamber is vacuumized until the vacuum degree is smaller than or equal to 5*10<-4> Pa, and the LAO substrate is heated to 600-700 DEG C; after 20-30 minutes, the chamber is filled with argon and oxygen, air pressure is stabilized at 30-60 Pa, the ratio of the oxygen to the argon is 1:2-1:3, and sputtering is started by taking Y<1-x>RE<x>BCO as the target. After sputtering is completed, the temperature is decreased to 400-450 DEG C, the chamber is filled with oxygen until the air pressure is maintained at 700-750 mbar, and annealing treatment is carried out for 40-80 minutes. After film coating is completed, the temperature is decreased to the room temperature, and the Y<1-x>RE<x>BCO superconducting layer growing on the LAO substrate is obtained. By means of the method, the coated conductor with the thickness of the Y<1-x>RE<x>BCO superconducting layer reaching 3 microns can be produced.

The invention discloses a device for preparing a CVD diamond film through a linear sample. The device comprises a vacuum reaction chamber, a gas cracking hot wire, a gas expelling device and a basal body support used for placing a linear substrate, wherein the gas cracking hot wire, the gas expelling device and the basal body support are arranged inside the reaction chamber. The device is characterized in that: the gas expelling device is a gas collector with a narrow slit aeration cavity; the gas collector also has a V-shaped cross section; and the gas cracking hot wire, the linear substrate and an inlet of the gas collector are arranged in turn from top to bottom so as to achieve the aim of collecting gas within a smaller area which is matched with the gas cracking hot wire and the linear substrate to improve the proportion of cracked gas and the utilization ratio of the gas. The device makes an air flow field distributed in the form of the V-shaped cross section, thereby improving the utilization ratio of mixed gas and the growth rate of a diamond crystal, and ensuring that a diamond film evenly deposit on the surface of the substrate.

The invention belongs to the technical field of plant cultivation, and particularly relates to a pennisetum sinese cultivation method which includes the steps: (1) land preparation: selecting soil with a thick soil layer and a sufficient water source and applying base fertilizers; (2) planting: selecting mature plants at the age of 6 months or more, selecting healthy stalks without disease and pest injury as seed joints, tearing leaves wrapping axillary buds, soaking the seed joints in 0.5% potassium permanganate solution for 24 hours, cutting the stalks into 40-50cm long short ears by taking every two joints as a section by a short stem cuttage method, and planting the short ears in two lines in every ridge-bordered plot; (3) fertilizer application: applying special fertilizers to pennisetum sinese for topdressing once in rainy days after cultivating and weeding. By the pretreatment mode of soaking the seed joints in the potassium permanganate solution, the resistance of the pennisetum sinese is improved, the growth rate of the pennisetum sinese is increased by applying the special fertilizers, and the pennisetum sinese rapidly grows and is high in survival rate.