38results about How to "Short growth cycle" patented technology

The invention relates to an energy source plant-mushroom fungus combined renovating technique for heavy metal polluted soil, belonging to the technical field of environmental energy sources. Energy source plants and mushroom fungus are planted in intercrop, interplanting or crop rotation on the polluted soil for enriching heavy metal ions; after materializing processing or biofermentation, the mature plants generate energy source substance to be used in the field of industrial fuel; plant residue and mushroom fungus body are put in a biogas tank with certain proportion to generate biogas; heavy metal ions in the methane liquid can be removed through chemical deposition; and the chemical deposition and biogas residues are intensively filled and buried. The energy source plant enricher in the invention can renovate deep soil, beautify the environment and generate energy source benefits and can be planted in large area, while the mushroom fungus enricher has the advantages of strong heavy metal ion enriching ability, short growth period and mature planting technique; the energy source plant and the mushroom fungus are combined to renovate the heavy metal polluted soil so as to achieve higher renovating efficiency and get energy benefits. 10-20 percent of polluted heavy metal can be removed in the cultivation layer of the soil per year.

The invention provides a method for simultaneously producing and preparing three active constituents, including Syringin, chlorogenic acid and 1, 5-dicaffeoylquinic acid by cell culture of herba saussureae involucratae on large scale. The method comprises application of flask shaking suspension culture and bioreactor culture, and separation and preparation process for the three constituents in the cultured cell. The invention provides a new method for production of the three medicinal active constituents, and the new method can provide enough resource for clinical medicine application; moreover, the method can protect the rare wild plants resource while realizing harmless, pollution-free and low-cost large scale production of the herba saussureae involucratae active constituents, so that the resources crisis is eased effectively.

The invention discloses a new bacterial strain CGMCC3830 (Pseudomonas putida) and a method for catalytically producing nicotinic acid or isonicotinic acid by using the bacterial strain. In the invention, the nicotinic acid or isonicotinic acid is obtained through a hydrolysis reaction, wherein 3-cyanopyridine and 4-cyanopyridine are taken as raw materials, and the CGMCC3830 (Pseudomonas putida) with high nitrilase activity obtained through fermentation culture is taken as a catalyst. The method comprises the following steps of: adding a substrate in a reactor in a flowing mode, and reacting for 6-10 hours to obtain 147g/L-221g/L of nicotinic acid or isonicotinic acid. The CGMCC3830 (Pseudomonas putida) has the characteristics of short life cycle, strong vital force, high conversion efficiency, short conversion cycle and the like, the production cost of nicotinic acid or isonicotinic acid is reduced greatly. The production process has the characteristics of mild reaction conditions, low energy consumption and high yield, is environmentally-friendly and the like.

The invention relates to a viscous red torulin for beta- carotene production and the preparing method. The invention provides a viscous Rhodotorula mucilaginosa)CGMCC No.1536 for high- production of beta- carotene. The method comprises: activating viscous red torulin, fermentating for a certain of time, centrifuging and getting bacteria, disintegrating bacteria cell with thermal acid method, adding mixing liquid of petroleum ether and acetone with the proportion being 1: 1, oscillating at 28 Deg. C, extracting for one hour, and getting beta- carotene coarse extract. The invention is characterized by high productivity of beta- carotene, generally reaching 389 ug/ g, natural product of beta- carotene, no artificial colouring matter, and wide application of food and other industries.

The invention provides an artificial cultivation method for termitomyces albuminosus. The artificial cultivation method includes the following preparation steps that 1, termitomyces albuminosus sporocarp is separated and put into a PDA culture medium, constant temperature incubation is carried out until mycelia overgrow the PDA culture medium, and a nutrient culture medium is inoculated with the PDA culture medium to cultivate a second-generation mother strain; 2, compost is bottled, sterilized and inoculated, and cultivation is carried out at the temperature of 18-28 DEG C under the dark or dim light condition until mycelia overgrow a bottle bottom; 3, the compost is bagged, sterilized and inoculated, and cultivation continues to be carried out for 10-20 days after mycelia overgrow fungus bags; 4, the fungus bags in the step 3 are put into a mushroom bed in a mushroom shed side by side, an auxiliary material layer is laid in the mushroom bed, particle soil which is 2-10 cm thick is covered, and disinfection is carried out; 5, fruiting management is carried out, and indoor temperature, day and night temperature difference, air humidity and soil water content are controlled to ensure normal growth of termitomyces albuminosus. The cultivation method is simple, cultivated termitomyces albuminosus fruits for 2-3 times, the biological conversion rate is 30-80%, and the artificial cultivation method has broad market value.

The invention discloses a method of cuttage propagation of Maytenus guangxiensis seedlings by shoots of Maytenus guangxiensis. The method includes using shoots as explants, allowing the shoots to root and germinate to obtain complete plants, and transplanting the plants to build a reproduction system of Maytenus guangxiensis. The method has the outstanding advantages that growth period is short, production cost is low, quality is high, the method is simple to operate and easy to popularize and can be used to massively produce seedlings. In addition, the problems, such as recession and heteromorphosis, of the Maytenus guangxiensis seedlings bred by the method are avoided, superior character of the seedlings can be kept, safety in use of the seedlings is improved, and positive effect on regeneration and sustainable utilization of endangered medicinal plant resources in shortage is achieved.

The invention discloses a method for manufacturing recombined hardwood. The method is characterized by comprising the following steps of: a, selecting gum wood with thickness of between 0.5 and 3 millimeters and width of between 5 and 100 millimeters; b, sizing; c, assembling, namely arranging and assembling the gum wood along the length direction; d, performing cold pressing, namely conveying the gum wood into a die of a press to perform cold pressing, wherein the pressure is more than 20MPa; and e, curing, namely heating the die filled with the blank to cure the blank. The sheared or rotary-cut fast-growing low juvenile gum wood or aspen wood of a made forest is used as a production raw material in the method, and the production raw material can be felled in 4 to 8 years, so the using cycle is greatly shortened, and the economic benefit is improved.

The invention provides a preparation method of cerium-doped silica sol, which comprises the following steps: 1) using silica sol with different particle sizes obtained by an ion exchange method as a seed, adding a certain amount of an alkali catalyst for controlling the seed with pH value of 9-10, heating to the temperature of 60-90 DEG C; 2) dissolving a certain amount of ammonium ceric nitrate to an ammonium ceric nitrate aqueous solution by adding pure water for standby; 3) heating by using water-bath, heating the seed in a step 1) while stirring to the temperate of 60-90 DEG C, adding a certain amount of silicon powder, adding a certain amount of silicon powder and a certain amount of the ammonium ceric nitrate aqueous solution in a step 2) every 30-45 minutes; 4) repeatedly adding for 5-10 times according to a charging mode in a step 3); 5) continuously stirring and reacting for 1-2 hours after the charging is finished. The invention has the following technical effects: 1, the growth period is short, the technology is simple, and the method of the invention can be used in grinding and polishing of a CMP technology rough polishing process; 2, the method is beneficial to the equipment cost reduction and safe production; 3, the method enables higher removal rate to the medium materials during the polishing process.

The invention belongs to the technical field of environment material preparation and particularly relates to bamboo stem biochar quantum dot modified Bi4Ti3O12 composite photocatalyst preparation andapplication. A bamboo stem biochar quantum dot modified Bi4Ti3O12 composite photocatalyst preparation method includes: firstly, taking bamboo stem powder as a carbon source to synthesize bamboo stem biochar quantum dot according to a hydrothermal method; secondly, calcining bismuth oxide and P25 in a tube furnace/muffle furnace to obtain a Bi4Ti3O12 material; finally, adding bamboo stem biochar quantum dots and Bi4Ti3O12 into a certain quantity of ethyl alcohol, ultrasonically treating, evaporate to dry ethyl alcohol, and calcining in the tube furnace to obtain a bamboo stem biochar quantum dot modified Bi4Ti3O12 composite photocatalyst. By adoption of bamboo stems as a biochar source for preparing the bamboo stem biochar quantum dots according to a one-step hydrothermal method, compared with a traditional process, the method has advantages of greenness, economy and environmental friendliness; the composite photocatalyst prepared according to the method is capable of effectively makinguse of visible light to degrade ciprofloxacin in antibiotic wastewater and has a promising application prospect in ciprofloxacin wastewater treatment.

The invention relates to a nonlinear optical crystal of strontium-ammonium boron tartrate tetrahydrate and a preparation method and application thereof. The molecular formula of the crystal is C4H16BNO12Sr, belongs to triclinic system and has a molecular weight of 368.61. The method comprises: adopting a water solution method, adjusting pH value, slowly volatizing water in 10 to 60 days so as to obtain a plurality of crystals, selecting crystals with better quality as seed crystals and using a program temperature reducing method to obtain the organic-inorganic hybrid nonlinear optical crystal of strontium-ammonium boron tartrate tetrahydrate with larger size. The nonlinear optical effect of the crystal is 1.5 times that of KDP crystal and the ultraviolet-visible transparent wave band ranges from 210nm to 900nm. The crystal has simple operation and low cost; an agent in use is an organic/inorganic material and has the advantages of low toxicity, short growth cycle and stable hysicochemical properties, and the like. The nonlinear optical crystal can be widely applied in nonlinear optical devices, such as frequency doubling converters, optical parametric oscillators, and the like.

The invention belongs to the field of genetic engineering, and specifically discloses an EAR1 protein related to plant drought resistance and a coding gene thereof, and applications of the EAR1 protein and the coding gene. The EAR1 protein has the amino acid sequence shown in SEQ ID No.1, and the coding gene has the nucleotide sequence shown in SEQ ID No.2. A mutant ear1 of the gene grows better under drought treatment than that of the wild type, and has the water loss rate lower than that of the wild type, so as to indicate that the drought resistance of the mutant is significantly improved.The functional protein coded by the arabidopsis thaliana EAR1 gene is found out. The activity of PP2C can be enhanced by direct interaction with PP2C, an ABA signal pathway can be negatively regulated, and the functional protein has sequence conservativeness in dicotyledon and monocotyledon plants. As a model plant, the arabidopsis thaliana has a short growth cycle, small genome, complete sequencing and simple genetic manipulation. By a method of infecting inflorescence with agrobacterium tumefaciens, a drought-resistant overexpression plant or gene editing mutant can be obtained, and geneticresources can be provided for variety improvement.

The invention relates to the field of aquaculture, in particular to an artificial aquaculture method of leeches. The method includes the following specific steps of 1, larva purchasing, 2, breeding and cocoon taking, 3, incubation, 4, egg collection, 5, management in the early growth period, 6, management in growth period, and management in late growth period. Larva cocoons are hatched manually, and the success rate of hatching is ensured; hatched leech eggs are placed in a leech pool for artificial aquaculture, nutrition required by the leeches is increased, the growth period of the leeches is shortened, the survival rate is high, and the leeches are strong in bodily form and meet the requirement of the market; according to the growth speed of leeches, different types of food are placed in the leech pool, the cost is reduced, and the farmers' income is increased.

The invention discloses a vinyl house shelf type black fungus planting method which aims at the problems that a present method for planting black fungi is inappropriate in temperature and humidity control, large in diseases, low in productivity of the black fungi and the like. The vinyl house shelf type black fungus planting method is convenient and easy to operate, low in production cost, and capable of improving the productivity of the black fungi in a vinyl house. The method comprises the following steps of constructing a shed frame and layering frame beds. When a black fungus bag matures, 16 to 18 of V-shaped openings are formed in the bag. The temperature and the humidity in the vinyl house are preserved in the process of grow management of fruiting bodies. The vinyl house shelf type black fungus planting method is capable of improving the productivity of material bags to 97%, and compared with the prior art, the productivity of the black fungi is increased by 25%.

The invention relates to a precursor culture medium for wild dendrobium candidum. A composition formula of the culture medium is formed from the following raw materials by weight: a B5 culture medium, 2.2 mg/L of naphthylacetic acid, 2.5 mg/L of indolebutyric acid, 16 percent of banana extract, 15 percent of potato extract, 2.6 percent of sucrose, 0.65 percent of agar and 0.5 percent of potassium. By regulating the dendrobium candidum culture medium, effective accumulation of secondary metabolites of a new variety of test-tube plantlet of dendrobium candidum is promoted to be increased; and due to change of precursor culture conditions, the aim of industrial production of the wild dendrobium candidum is fulfilled. Active ingredients of a test-tube plantlet of dendrobium candidum, which grows for 7 to 8 months, are superior to those of triennial wild seedlings of dendrobium candidum, the growth cycle of dendrobium candidum is shortened, the planting manner of dendrobium candidum is changed, a land planting area is greatly saved, production cost is reduced, and necessary conditions are provided for comprehensive utilization and deep processing of the wild dendrobium candidum.

The invention provides a container floor, which is made of coconut timber. By utilizing a little-known characteristic that a coconut timber floor has strong nail-holding power, the coconut timber is applied to the industry of container floors for the first time, and troubles of performing material combination and processing on the conventional plywood are avoided, so that the container floor is independent of apitong, the sustainable development of the industry of the container floors is promoted further, and new application of the coconut timber is created.

The invention relates to an Alternaria alternata DB2 strain and preparation and application thereof. The preparation method comprises the following steps of: (1) putting rotten seaweed into an enrichment culture medium, standing and culturing at room temperature, coating the enrichment culture medium in an isolation culture medium, and standing and culturing for 1 to 4 days at the temperature of 30 DEG C to obtain wild flax biological treatment strains; (2) inoculating the strains obtained in step (1) into a flax lignin nutrient culture medium, and culturing for 72h at the temperature of 28 DEG C; and (3) selecting a strain which has the capacity of degrading lignin from the flax lignin nutrient culture medium to obtain the Alternaria alternata DB2 strain. The strain can be applied to a process for preparing textile flax, hemp, jute or kenaf fiber by degumming peroxide. The growth cycle of the strain is short, the strain cannot be polluted easily, has strong contamination resistance and good heat resistance, and does not pollute the environment, the treatment cost is low, reaction conditions are mild, and the quality of treated fiber is high; and the process is simple and is suitable for large-scale industrialized production.

The invention discloses a proliferation method of broccoli, comprising the following steps: 1) removing the root of broccoli, marking the broccoli plant of which the root is removed as a root-removed broccoli plant; 2) implanting the root-removed broccoli plant into an enrichment medium, cultivating until the root-removed broccoli plant outgrows a root and a terminal bud, and marking the obtained plant as a broccoli plant with the root and the terminal bud; 3) removing the terminal bud of the broccoli plant with the root and the terminal bud, continuing to cultivate until the root of the leaf blade of the plant outgrows a bud point, and marking the plant in the period as a broccoli plant with the bud point; and 4) cutting off the bud point of the broccoli plant with the bud point, and inoculating in a rooting medium to be cultivated until the broccoli seedling is obtained. Experiments prove that the method of the invention has short proliferating cycle, high proliferating rate and high survival rate of the obtained broccoli seedling. The method of the invention has wide application prospect in the broccoli proliferation field.

The invention relates to vibrio maritimus capable of producing alginate lyase with good thermal stability. The name of the vibrio maritimus is ML17, the classification name is Vibrio sp., the preservation number is CGMCC No.20377, the preservation date is July 16, 2020, the preservation unit is China General Microbiological Culture Collection Center, and the preservation site is No.3, yard 1, Beichen West Road, Chaoyang District, Beijing. According to the present invention, the vibrio maritimus is separated from the intestinal tract content of Monodonta Labio, the vibrio maritimus does not have the significant hemolysis phenomenon through the verification of Wagstsuma Blood Agar Base, and the surface of the vibrio maritimus does not have the potential pathogenicity. The vibrio maritimus disclosed by the invention is short in growth cycle and is a dominant strain in intestinal tracts of the Monodonta Labio, and the produced alginate lyase has good thermal stability.

The present invention adopts identical culture medium to make inoculation and subculture according to the conventional operation condition, it can obtain seedling by one step in only 45 days, then one subculture is achieved at an interval of 20 days, its reproduction multiples are 1:4 or 1:6; then the rooting culture brings about rooting in 12-15 days, and the obtained young plant with culture stem of cleaned root portion is stably placed in the seminary, and under the conditions of that the temp. is 20-30 deg.C. humidity is 80-90% and sunshading degree is 50%, the seedling grows up, and at the same time, 1-6 ppm of paclobutrazol and nutrient solution are applied. Said invention can implement batch production of group-cultured seedlings, its growing period is short, cost is low, and it can obtain above 50% of seed konjak in current year.

The invention relates to a Rb-B-C-O-I-H compound, a Rb-B-C-O-I-H nonlinear optical crystal, a preparation method, and an application. A molecular formula of the compound is Rb9[B4O5(OH)4]3(CO3)I.7H2O, and the molecular weight is 1656.07. The molecular formula of the crystal is Rb9[B4O5(OH)4]3(CO3)I.7H2O, and the molecular weight is 1656.07. The crystal belongs to trigonal crystal system with a space group being P-62c. The Rb-B-C-O-I-H nonlinear optical crystal is prepared through a hydrothermal method in a manner of programmed temperature reducing or natural temperature reducing. The nonlinear optical effect of the crystal is 0.5 times of a KDP crystal. The light transmittance wave band is 319-2600 nm. The crystal is simple in operation and low in cost in production process. The employed reagents are inorganic raw materials and low in toxicity. The crystal is short in growth period and stable in physical and chemical properties. The Rb-B-C-O-I-H nonlinear optical crystal has wide application in the fields of double frequency conversion, optical parametric oscillator and the like nonlinear optical devices.

The invention discloses an environment-friendly water-based paint with adsorption and purification functions. The water-based paint is prepared from the following raw materials in parts by weight: 500-600 parts of deionized water, 80-120 parts of a modified bamboo activated carbon powder, 100-200 parts of polyurethane resin, 50-80 parts of glycerol epoxy resin and 20-30 parts of a defoaming agent.The invention also discloses a preparation method of the water-based paint, which comprising the following steps: (1) preparation of the modified bamboo activated carbon powder; (2) preparation of amix liquor: according to the proportions of the raw materials, putting the polyurethane resin, glycerol epoxy resin, a defoaming agent and deionized water into a reaction vessel for mixing, controlling the temperature at 70 DEG C, and after uniform stirring, carrying out ultrasonic dispersion to obtain a mixed solution A; and (3) mixing. According to the preparation method provided by the invention, the modified bamboo activated carbon powder is used as a raw material, toxic gases such as formaldehyde, toluene and the like contained in air can be effectively adsorbed, bamboo has the characteristics of short growth period, reproducibility and the like, and the raw materials are cheap and easily available, so that the production cost is low, and the water-based paint is a novel environment-friendly water-based paint.

The invention discloses a breeding method for castor silkworms. The breeding method for castor silkworms includes the following steps that (1) castor silkworm eggs are selected and put into a water solution of a vitamin C at the temperature of 15 DEG C to 20 DEG C, and are soaked for 5 min to 10 min to be taken out, the obtained castor silkworm eggs are put into a woody box and incubated, and newly-hatched silkworms are obtained; (2) the obtained newly-hatched silkworms are put into a container with castor leaves and are fed; (3) the container is sterilized and disinfected every 2 days to 3 days, leftover residues are cleaned in time, and cocooning can be carried out after 18 days to 22 days. According to the breeding method, the castor silkworm eggs are soaked in the water solution of thevitamin C, and are supplemented with the vitamin C, growth of silkworm eggs is facilitated, the growth cycle of the castor silkworms is short, illness is not prone to occurrence, and the incidence rate is low; fresh castor twigs are also added, experiments show that breeding time can be shortened, and meanwhile the quality of obtained silkworm cocoon products is improved.

The invention discloses a constant-temperature water circulation system for liquid strain. The system comprises a constant temperature water tank, an air cooling type compressor, a temperature probe and a plurality of liquid strain cultivating pots, wherein the constant temperature water tank is connected with the air cooling type compressor through one end of a pipeline I; a heating coil is connected with the other end of the pipeline in the constant temperature water tank; a water inlet and a water outlet are arranged on the constant temperature water tank and are respectively in parallel connection with a water return pipeline and a water draining pipeline; the water return pipeline and the water draining pipeline form a loop and are connected with each other; the liquid strain cultivating pots are respectively connected with the water return pipeline and the water draining pipeline through the pipeline II and the pipeline III; a circulation pump is mounted on the water draining pipeline, close to the water outlet of the constant temperature water tank; one end of the temperature probe is arranged on the air cooling type compressor while the other end is arranged in the constant temperature water tank. The system utilizes thermal cycle to stabilize the temperature environment of the strain, so as to solve problem that the liquid strain cannot grow under normal temperature in Nanning mountain area.

The invention discloses an additive for in-vitro amplification of human embryonic stem cells. The additive is used for being added into a basal culture medium for in-vitro amplification of embryonic stem cells and comprises the following components: brassinolide, sodium mercaptosuccinate, stigmasterol, gentiopicroside, kanamycin and L-glutamine. The brassinolide, the sodium mercaptosuccinate, the stigmasterol and the gentiopicroside in the additive have a synergistic effect, so that the proliferation of the embryonic stem cells is remarkably promoted, the proliferation period is shortened, and the proliferation efficiency is improved. When the additive and the basic culture medium are used for performing in-vitro amplification on the embryonic stem cells, a large number of high-quality human embryonic stem cells can be obtained within a short time, animal serum is not needed, the safety is high, and scientific research and clinical requirements are fully met. The invention also provides a human embryonic stem cell in-vitro amplification method, the additive is added into the basic culture medium for cell amplification, the cell amplification efficiency is improved, the operation is simple and convenient, and the batch production of the human embryonic stem cells is facilitated.

The invention discloses a method for culturing adult fishes before tilapia appear on the market. The method comprises the step: culturing tilapia in a water body for a period of time, wherein the water body contains a certain concentration of microorganisms and/or enzymes for promoting the metabolism of the tilapia. The invention aims at providing the method for culturing adult fishes before tilapia appear on the market, and the method can be used for reducing the earthy taste and the contents of hormones and antibiotics in adult fishes of the tilapia.

The invention relates to nonlinear optical crystals, in particular to deep-ultraviolet nonlinear optical crystal barium zinc fluorophosphate and a preparation method and application thereof. The deep-ultraviolet nonlinear optical crystal barium zinc fluorophosphate has a chemical formula of BaZnPO4F, with a crystal space group of Pna21 (No. 33), cell parameters and cell volume shown in the description, and molecular weight of Mr=316.68. The deep-ultraviolet nonlinear optical crystal barium zinc fluorophosphate is prepared by adding a barium source, a fluorine source, a zinc source, a phosphorus source and an organic solvent in a hydrothermal reactor, heating the hydrothermal reactor, cooling to room temperature to obtain a product, and washing the product; the deep-ultraviolet nonlinear optical crystal barium zinc fluorophosphate prepared is a colorless transparent target crystal. The deep-ultraviolet nonlinear optical crystal barium zinc fluorophosphate is applicable to the preparation of double frequency conversion nonlinear optical devices for deep-ultraviolet ranges.

The invention discloses an intelligent device for agricultural planting and seedling raising. The intelligent device comprises a control mechanism and a plurality of seedling raising mechanisms, wherein the seedling raising mechanisms are electrically connected with the control mechanism; the control mechanism comprises a cabinet body, a control panel, a PLC (programmable logic controller), a temperature sensor and a humidity sensor; the control panel is detachably arranged at the top part of the front side of the cabinet body; the PLC, the temperature sensor and the humidity sensor are detachably arranged at the back side of an inner cavity of the cabinet body from left to right; and the control panel, the temperature sensor and the humidity sensor are correspondingly and electrically connected with the PLC. The intelligent device has the advantages that the temperature and humidity can be intelligently regulated and controlled, the manual watering is not needed, the time and labor are saved, the seeds can normally grow for 24h without interruption, the growth cycle is short, the plant forming speed is high, the seedlings after subsequent culture can be conveniently fetched out, the practicality is further improved, and the intelligent device is suitable for being widely popularized.

The invention relates to a bismuth fluorine iodate nonlinear optical crystal, and a preparation method and an application thereof. The crystal has a chemical formula of Bi3F3I4O13 and a molecular weight of 1399.54, belongs to a hexagonal crystal system and has a space group of P63 mc, high transmittance in a wavelength range of 380 nm to 12 [mu]m, an ultraviolet transmission cut-off edge of 340 nm or below and an infrared transmission cut-off edge of 12.4 [mu]m in a light transmission wave band, and a nonlinear optical effect of about 4 times of KDP. According to the invention, by adopting a hydrothermal method, a millimeter-scale transparent bismuth fluorine iodate nonlinear optical crystal can be obtained through a programmed cooling or constant temperature process; and the crystal has simple operation and low cost, uses a reagent of an inorganic raw material with advantages like low toxicity, short growth cycle and physicochemical stability, and can be extensively applied in nonlinear optical devices like frequency-doubling conversion and optical parametric oscillators.

The invention relates to hydrated potassium borate and a hydrated potassium borate nonlinear optical crystal and a preparation method and application. The chemical formula of the compound is K3B3O4(OH)4 2H2O, and the molecular weight of the compound is 317.79. The compound is a clear crystal. The chemical formula of the hydrated potassium borate nonlinear optical crystal is K3B3O4(OH)4 2H2O, and the molecular weight of the hydrated potassium borate nonlinear optical crystal is 317.79 and the crystal belongs to an orthorhombic crystal system and a space group (i)Cmc(/i)21. The unit cell parameters are as follows: a is equal to 13.806 angstroms, b is equal to 7.910 angstroms, c is equal to 9.093 angstroms and z is equal to 4 angstroms. The K3B3O4(OH)4 2H2O nonlinear optical crystal is obtained by the adoption of a hydrothermal method, which grows well and transparent. The nonlinear optical effect of the crystal is somewhere fourth five of that of a KDP crystal. The ultraviolet absorptioncut-off side is lower than 190nm, and there are wide transmission ranges in ultraviolet and visible regions. The crystal has the advantages of being easy to operate, low in cost, small in toxicity, short in growth cycle and stable in physico-chemical property during growth. The nonlinear optical crystal can be broadly applied to nonlinear optical devices such as frequency multiplication converters and optical parametric oscillators.

The invention relates to a standard planting method for paris polyphylla. The method comprises the following steps of: breeding, cultivating, performing field management, harvesting, cleaning fields and gardens and the like. The method can be used for standard planting of the paris polyphylla with short the growth period and yield improved by over 30 percent; decomposed manure, rotted manure, decomposed human excrement or cake fertilizers are chiefly adopted, and pesticides are prohibited, so rhizomes used as medicines meet the provisions under a 'paris polyphylla' item of Chinese Pharmacopoeia 2010 edition one, harmful substances such as pesticide residues, heavy metals and the like are below the standard provision, the cost is reduced, and the quality of the paris polyphylla serving as the medicines is ensured; and the planting and processing of the paris polyphylla have a strict requirement on various chemical pollutions, so the excellent ecological environmental benefit is broughttogether with social economic benefit.