84 results about "Rich black" patented technology

The present invention discloses selenium-rich black peanut and its production process. The production process includes the following steps: measuring selenium content in soil, pH value of soil, heavy metal content in soil and water and selenium content in the air and water to determine the selenium and lime applying amount; soaking seed with selenium containing liquid, leaf spraying of selenium fertilizer, etc. to ensure the selenium content in peanut stably in 230-250 mcg / kg. The selenium-rich black peanut is good for health and has required heavy content without harm to human body.

American energy costs steadily increase leading to increased unconventional energy use. However, scientific barriers prevent widespread and economic development of these resources. In gas shale plays, resource utilization is limited by the understanding of how hydrocarbons and other fluids migrate in fractured rock. This limits industry's ability to extract hydrocarbons with enhanced recovery methods; prevents exploration in areas where hydrocarbons do not collect in traditional traps; and could unfortunately lead to dangerous environmental consequences such as contaminated groundwater. To address these concerns, the present invention integrates geochemical and geostructural techniques in a novel method for evaluating and optimizing the placement and drilling strategies of extraction wells in hydrocarbon rich black shales. By correctly choosing hydrocarbon “sweet spots” companies can reduce the number of unprofitable wells, choose directional drilling and completion strategies to accurately reflect the subsurface, and better select prime small- and full-field reservoirs.

The invention relates to a black tea fungus growing process, and in particular relates to a technology for making selenium-rich black tea. The technology comprises the following steps: carrying out pile fermentation on raw black tea material, steaming the tea, spraying eurotium cristatum conidial powder onto the tea, sealing the tea and then sterilizing, carrying out fungus growing process on the tea, carrying out ultrasonic treatment, etc. By adopting the ultrasonic treatment, the method can reduce the autolysis phenomenon of eurotium cristatum, and also has the function of fixing golden flowers, thus being beneficial to protecting organic selenium to the utmost extent, reducing the high-temperature oxidative degradation of the organic selenium, and preventing the thallus from being reduced by the golden flowers under the high-temperature condition. A great deal of eurotium cristatum conidial powder is adopted for quick fermentation, so that the growth of sundry fungus can be reduced, the problem of tea mildew can be avoided, and the influence of a culture medium in the eurotium cristatum liquid to the original flavor of the tea can be avoided.

The invention relates to a method for processing a selenium-rich black garlic product. The method comprises the following steps: removing pedicles of fresh selenium-rich garlic or dry garlic as a raw material, and washing; soaking by using salt water, and draining; pre-freezing at low temperature; carrying out early fermentation on inoculated lactic acid bacteria; regulating the temperature and the humidity for main fermentation; carrying out after-ripening, and drying; and carrying out vacuum packaging. The selenium-rich black garlic finally obtained by adopting the method not only retains the original nutritional components and effective components of the raw garlic, but also removes the original biting taste and garlic odour of the raw garlic, a the content of organic selenium is increased, the total content of phenol is increased to about 5-8 times of the original total content of the phenol, the oxidation resisting capacity and the free radical removing capacity are greatly enhanced. The method disclosed by the invention has the advantages of being simple, high in operability, low in cost, easy to control, high in nutrition value, high in health-care efficacy and very high in development and application value and economic value.

This invention disclosed a late textile processing technology of natural plant. It was the use of natural plant cassava cirrhosa the juice as a natural dye, various textile dyeing, textiles repeatedly disseminated, and placed under the scorching sun, they have become brown and yellow semi - use the iron-rich black pond sludge silt on one side or double-sided smear, we can wait until the surface was black, buffeting from pond sludge silt, clean, become yellow-faced Lane, shiny lights textile fabrics. The whole production process of all manual produced, without any chemical dyeing auxiliaries, is a new type of green textile fabrics.

The invention discloses a sprouted grain fermentation selenium-rich dietary eight-treasure porridge and a preparation method of the dietary eight-treasure porridge. The sprouted grain fermentation selenium-rich dietary eight-treasure porridge comprises selenium-rich Chinese yam, water shield, bamboo shoots, selenium-rich black fungus, selenium-rich mushrooms, mung beans, red beans, selenium-rich rice and buckwheat in certain proportion. The preparation method comprises the following steps: (1) selecting food materials, and weighing the raw materials; (2) compounding the mung beans and the red beans, soaking and grinding to obtain coarse grain pulp rich in amylase, cellulase, protease and glucoamylase; (3) cutting the selenium-rich Chinese yam, the water shield, the bamboo shoots, the selenium-rich black fungus and the selenium-rich mushrooms into piece, grinding, mixing, adding the coarse grain pulp into the mixture, and carrying out enzymolysis; (4) after enzymolysis is finished, adding saccharomycetes for diluted fermentation to obtain a sprouted grain yeast; (5) after fermentation is finished, evenly mixing, filling and quick-freezing; (6) sterilizing and cooling to obtain the sprouted grain fermentation selenium-rich dietary eight-treasure porridge. The sprouted grain fermentation selenium-rich dietary eight-treasure porridge is reasonable in formulation and convenient to use, can be easily absorbed by a human body, and is rich in nutrition and unique in flavor.

The invention discloses a hydroponic method for inorganic selenium-enriched black tomatoes, which comprises soaking black tomato seeds in an aqueous solution of 0.001-0.02 mg / L sodium selenite and combining selenium nutrient solution with leaves during the growth process of black tomatoes method. Planting black tomato according to the method of the invention can provide effective selenium source to black tomato seeds, and at the same time promote black tomato to absorb and accumulate selenium element, so that obtained black tomato fruit has high selenium content.

The invention relates to a selenium-rich black fungus culture material and a preparation method thereof. The culture material is prepared from the following raw materials in percentage by weight: 65-73% of corn cob, 18-24% of selenium-rich lucerne meal, 5-11% of wheat straw, 0.8-1.2% of calcium superphosphate, 0.2-0.8% of gypsum and 0.3-0.9% of lime. The selenium-rich black fungus culture material has the advantages of reasonable raw material proportioning, balanced nutrients and high utilization ratio of selenium; and the C / N ratio satisfies the culture demands for black fungus. The selenium content of the black fungus produced by the culture material according to the conventional bag-type culture technique reaches 0.15-3.0 mg / kg which is 5-100 times of the common black fungus; the black fungus has rich nutrients, and is an excellent selenium-supplementing green health-care product; the sales price is 10% higher than that of the common black fungus; and the culture material has wide development prospects.

The invention discloses a breeding method of an anthocyanin-rich black rice thermo-sensitive two-line sterile line and belongs to the technical field of special rice breeding. The method comprises the following steps: taking black rice with the brown rice anthocyanin color value which is more than 20 as a male parent, and taking a thermo-sensitive two-line sterile line as a female parent, and carrying out artificial hybridization; selecting single plants which has the brown rice anthocyanin color value more than 20, stable fertility, low critical temperature, long stable sterile period, thick and strong plant stalks, strong tillering, up-right leaves, small leaf angles and many spike grains in each generation from the generation F2; and finally, breeding to form the anthocyanin-rich black rice thermo-sensitive two-line sterile line. By virtue of the method, the foundation is laid for the assembling of hybrid black rice high-quality seeds which are rich in anthocyanin and have stable yield and high yield. The bred sterile line is used for breeding hybrid black rice varieties so that the bred hybrid black rice has good plant shape, high yield and stable yield; and the brown rice has bright color and luster, is dull black and is rich in anthocyanin, and has advantages of hybrids.

The invention relates to a method for producing harmless selenium-rich black earth pork by utilizing a selenium-rich astragalus sinicus secondary conversion technology, which is characterized by comprising the following steps of: planting the astragalus sinicus, spraying on leaves by utilizing a prepared selenium-rich nutrient solution; drying in the sun, storing and pulverizing the selenium-rich astragalus sinicus, mixing with the pulverized high quality corn, wheat bran, bean pulp and mineral matter powder to prepare selenium-rich compound feeds; feeding according to different pig ages; and selling a pig growing to about 80kg to a target place for butchering, and processing into the harmless selenium-rich black earth pork which is packaged by a vacuum film. The method for producing harmless selenium-rich black earth pork by utilizing the selenium-rich astragalus sinicus secondary conversion technology has the advantages that the selenium bioavailability is high, the nutrition is safe, the meat quality is excellent, the capability against disease of the pig is strong, the residue of bacteriophage is low, the compound feed is high quality natural farm crops without pesticide residue, and the products subjected to inspection completely satisfy the harmless food standard.

The invention discloses a making method of selenium-rich black tea. The method includes the following two aspects: 1. an early stage cultivation technology: in the early stage of topdressing, tea enzyme is increased to process tea and selenium-rich foliage fertilizer is applied additionally according to a dosage of 15-50kg / 667 square meters; and 2. a later processing process: the process includes tea tedding, cooling, rolling, fermentation, initial baking, solution and modeling, baking, fragrance distilling, blending piling, packaging and warehousing. According to the invention, through scientific making of selenium-rich tea soil early stage cultivation technology and later processing process, a set of technology according with tea growth can be formed, and has very good practical value and reference significance.

The invention relates to a selenium-rich intestine moistening tea and a production method thereof. The selenium-rich intestine moistening tea is characterized by comprising the following materials in percentage by weight: 40 to 50 percent of selenium-rich coptis chinensis leaf powder, 10 to 20 percent of red jujube powder, 5 to 10 percent of crested ginger powder, and 20 to 45 percent of selenium-rich black tea powder. The production method comprises the steps of uniformly mixing the selenium-rich coptis chinensis leaf powder, the crested ginger powder, the red jujube powder, and the black tea powder according to a proportion, so as to obtain the selenium-rich intestine moistening tea. The selenium-rich intestine moistening tea and the production method have the advantages that the compatibility is scientific; single coptis chinensis leaf is compounded with other materials; the materials are complementary in functions; the efficacies are improved; advantages of the materials are enhanced; disadvantages of the materials are reduced; purging intense heat is relieved to be clearing heat; relaxing bowel is regulated into intestine moistening; the health-care and body building purposes are realized through long-term drinking.

The invention discloses a cultivation technology for silicon-rich black fungus, which is the method for acquiring the silicon-rich black fungus by using materials such as bagasse, reed residue and mushroom residue for forming base stock, cultivating the black fungus by using a method of cultivation with materials for substitutes, and spraying nutrient solution during a fungus growth period. The base stock comprises the following components: 25-28% of bagasse, 20-25% of reed residue, 15-18% of mushroom residue, 6-8% of lime, 4-6% of gypsum, 3-5% of calcium superphosphate, 2-4% of cane sugar, 1-3% of wheat bran and 1-3% of urea. The 0.05-0.1 part of silicate in the nutrient solution is one or more of sodium silicate, potassium silicate and ammonium silicate.

The invention relates to anti-wrinkle eye cream. The anti-wrinkle eye cream is prepared from, by mass, 2-9% of plant oil, 13-32% of moisturizing agent, 1-5% of water-soluble fullerene, 0.1-5% of selenium-rich black fungus selenium polysaccharide, 0.1-5% of lotus leaf polysaccharide, 0.5-3% of emulgator, 0.1-3% of thickening agent and 0.1-0.5% of conditioner. The adopted water-soluble fullerene has very good oxidation resistance performance, can effectively remove activated oxygen free radicals, improve microcirculation, activate skin cells and prevent senility. The components in the composition have a synergistic interaction effect, and the anti-wrinkle eye cream has the effects of remarkably fading eye wrinkles, improving black eyes and under-eye puffiness, deeply moisturizing the skin and the like and makes the eye skin full of energy.

The invention discloses a preparation method of theaflavins-rich black tea, and belongs to the technical field of preparation of black tea. The preparation method is characterized by comprising the following steps: (1) picking leaves; (2) withering: evenly spreading the picked fresh leaf raw material on a leaf containing curtain of a withering trough, introducing natural wind, and using red light,blue light and yellow light to perform light compensation withering treatment in different time periods to obtain withered leaves; (3) rolling: putting the withered leaves into a rolling machine forrolling, and horizontally cutting the rolled leaves in a horizontal cutting machine to obtain rolled cut leaves; (4) unblocking; (5) fermenting: putting the rolled leaves, subjected to unblocking, into a fermentation chamber for carrying out stacking fermentation, and introducing negative oxygen ions in a fermentation process so as to obtain tea base; (6) drying: firstly, carrying out high-temperature inactivation and drying on the tea base, then drying sequentially by using gross fire and full fire, and spreading for cooling to obtain raw tea of the theaflavins-rich black tea. The invention aims at providing the preparation method, which is scientific in process and optimized in process, of the theaflavins-rich black tea; the method is used for preparing the theaflavins-rich black tea.

The invention relates to iron-rich black fungus and a production method thereof. The production method includes: firstly preparing stock culture; secondly, screening cultures of the black fungus high in iron tolerance; thirdly, domesticating the cultures; fourthly, separating and purifying the cultures; and fifthly performing submerged culture of the black fungus. According to the method, the black fungus is cultured at 25 DEG C and at the rotation speed 120rpm and is subjected to liquid submerged fermentation for 5 days, and mycelia of the black fungus with iron content of 32000mg / kg can be obtained, and biologic iron in the mycelia reaches 90%.

The invention relates to a selenium-rich blood nourishing tea and a production method thereof. The selenium-rich blood nourishing tea is characterized by comprising the following materials in percentage by weight: 15 to 20 percent of selenium-rich angelica sinensis leaves, 10 to 20 percent of medlar, 10 to 20 percent of selenium-rich astragalus extract, 5 to 10 percent of carthamus tinctorius, 5 to 15 percent of persimmon leaves, and 30 to 45 percent of selenium-rich black tea. The production method comprises the following steps in sequence: uniformly mixing the powder of the four ingredients (the selenium-rich angelica sinensis leaves, the medlar, the persimmon leaves and the black tea) and selenium-rich astragalus extract according to dosages; bagging; sealing; sterilizing; packaging to obtain the selenium-rich blood nourishing tea. The selenium-rich blood nourishing tea is a nutrient health-protection drinking mainly blended for anemia patients, women in menstrual period to regulate vital energy and blood, and women suffering from dysmenorrheal and irregular menstruation.

The invention discloses a culturing method for molybdenum-and-chromium-rich black rice. The method comprises: before rice seedling transplanting, applying molybdenum-rich base fertilizer in a paddy field, the molybdenum-rich base fertilizer being made by mixing and retting molybdenum-containing compounds, a compound fertilizer, biogas residue liquid, and peanut seedling fertilizer, uniformly applying and burying the molybdenum-rich base fertilizer in soil when preparing land; respectively spraying a molybdenum-rich leaf fertilizer once in a rice heading flowering initial stage and an early filling stage, the molybdenum-rich leaf fertilizer being formed by dissolving molybdenum-containing compound fluid molybdenum in Chinese medicine extraction The method makes rice have a plurality of chances to take in molybdenum element from nutrition in a growth development process, thereby being beneficial for improving the molybdenum content of rice, and the molybdenum has health care effect. The rice can be made into various rice food, such as cooked rice, rice noodles, cakes, biscuits, etc., the rice is nontoxic and has no side effects, and can enhance immunity of human bodies.

The invention discloses a making method of selenium-rich black tea with milk, and the selenium-rich black tea with milk is prepared as follows: inorganic selenium sodium selenite is biologically transformed to form organic matter cell bonding selenium, selenoprotein and selenium amino acid which are organic selenium, the organic selenium using as seed selenium is cultured by secondary fermentation to obtain bonding cells containing 98.6% of the organic selenium, the activity is high, the human body absorption utilization rate is high, and the technical problem that after direct oral administration of the organic selenium transformed from the inorganic selenium, the inorganic selenium is low in activity and unstable, and un-transformed residual inorganic selenium is high in concentration, and strong in toxic and side effect can be overcome.

The invention relates to a selenium-rich black fungus beverage, which is prepared from the following components based on the total weight of the beverage: 10 to 15 percent of selenium-rich black fungus powder, 5 to 10 percent of white granulated sugar, 0.5 to 1 percent of honey, and the balance of water, wherein the selenium content of the selenium-rich black fungus beverage ranges from 100 to 300 mu g / L. The invention also provides a preparation method of the selenium-rich black fungus beverage. The preparation method comprises the following steps of dissolving the selenium-rich black fungus powder in water, adding cyclodextrin, stirring at the temperature of 40 to 60 DEG C, cooling, drying, puffing, and obtaining the selenium-rich black fungus powder; dissolving the selenium-rich black fungus powder in water, polishing to 80 to 150 meshes, then mixing with ingredients, and homogenizing to obtain a homogenized material, wherein the fineness of the homogenized material ranges from 200 to 400 meshes; sterilizing and subpackaging the homogenized material to obtain the selenium-rich black fungus beverage. The selenium-rich black fungus beverage provided by the invention fills the vacancy of the selenium-rich fungus beverage on the market, and the beverage prepared through the method provided by the invention is rich in selenium and stable in organic selenium form, and meets dual needs on selenium supplement and smog resistance of a human body.

The invention discloses a culture method of selenium-rich black fungus, and relates to the technical field of black fungus planting. According to the culture method of the selenium-rich black fungus, hexamethylphosphoramide is added into a culture medium and is combined with sodium selenite in the culture medium to generate organic selenium; sodium selenite inorganic selenium is converted into organic selenium, so that the absorption of the black fungus on the selenium element can be promoted; the goal of enriching the selenium enrichment by the black fungus is achieved; traditional Chinese medicine ingredients are also added in the culture medium; the effects of sterilization, mildew prevention, worm expelling, black fungus immunity improvement, growth promotion and yield increase are achieved; the normal growth of the black fungus is ensured; the survival rate is improved; the traditional Chinese medicine ingredients are plant sources, are easy to decompose, so that the pesticide residue cannot be caused; scientificalness and environment protection are realized; the health of eaters can be ensured.

The invention discloses a formula of selenium-rich black peanut milk, comprising the following raw medicines in percentage by weight: 8-10% of black peanuts, 6-8% of black beans, 8-10% of black sesame seeds, 8-10% of black wheat, 3-5% of black tartary buckwheat, 8-10% of black rice, 6-8% of selenium-rich lentinus edodes pileus powder, 20-25% of fresh milk, 2-5% of white granulated sugar, 0.2-0.5% of a stabilizing agent and the balance of sterilized water, wherein the total percentage is 100%. The raw materials used in the formula contain richer nutrients and can supply heat production nutrient sources for human bodies as well as supplement major elements and trace elements necessary for the human bodies; and especially, nutrients which do not exist in the milk powder can smoothly pass through various barriers of the brain to enter the brain tissue so as to be absorbed, thereby achieving the effects of restoring consciousness, refreshing the brain, improving the memory, improving the analysis capability of the brain, improving the working efficiency of learning, enhancing the immune functions of the human bodies, promoting the growth and development of the human bodies, as well as enhancing the functions of preventing cancers and infectious diseases for the human bodies.

The invention discloses a method for breeding a selenium-rich black swan and relates to the technical field of breeding. The black swan is continuously fed with a selenium-containing preparation for one or multiple times each day in 10-60 days before being slaughtered, wherein the daily feeding amount is 0.4-30 mg / kg.b.w by selenium. The method has the benefits as follows: the black swan is fed with a larger amount of the selenium-containing preparation before being slaughtered, so that the meat and the organs of the selenium-rich black swan with higher selenium content can be obtained; and the products of the selenium-rich black swan can meet the daily requirements of the people on the selenium. The method further comprises breeding of a white swan, a little swan, a turkey duck, a Landes goose, a wild goose and a domestic goose.

The invention belongs to the field of agricultural planting, and particularly relates to a planting method of selenium-rich black soybean. The method comprises the following steps: A, seed treatment: drying full seeds for 2 to 3 days, dissolving every kilogram of seeds into 30 milliliters of water with 0.8 to 1.2 gram of sodium borate, stirring the seeds after dissolution, and drying the seeds in shade, so as to be convenient for seeding; B, soil preparation and fertilization: selecting sandy soil, applying 1000 to 2000 kilograms of organic fertilizer for each mu, and then performing rotary tillage with the rotary tillage depth being 20 to 23cm; C, hole opening and seeding: ensuring that the seeding depth is 3 to 4cm, the row spacing is 10 to 15cm, the plant spacing is 45 to 60cm, 1 to 2 seeds are sown for each hole, and 10000 to 12000 plants are sown for each mu; D, field management: spraying sodium selenite solution with the mass concentration being 0.5% once to leaf surfaces during the early blooming period and the seed filling period of black soybean. The selenium content of the produced black soybean is stabilized at 520 to 610 micrograms / 100 grams, and the health care effect of the black soybean is greatly improved.

The invention discloses an effective culture medium of pleurotus eryngii containing rich black bean pigment. The effective culture medium comprises the following ingredients in parts by weight: broad-leaved tree sawdust, rice chaff, luffa leaf powder, fine pyrite cinder, egg-shell meal, tomato juice, waxy corn flour, brown rice, pawpaw seeds, sorghum flour, amylase, shrimp meal, black bean shell powder, black bean residue, mycose, expanded feather meal, barley pest powder, protease, carbon nano tubes, grape skin natural pigment and amino acid zinc. The effective culture medium has the advantages that the black pigment extracts of black beans are added into the carbon nano tubes; the zinc is added into the carbon nano tubes to enter the cells of pleurotus eryngii; the metabolic growth of the pleurotus eryngii and the culture of the organic colored pleurotus eryngii are promoted; after vegetable protein and animal protein are used for enzymolysis, a sufficient nitrogen source is provided for the pleurotus eryngii; composting plant waste is used; sufficient carbon sources are provided for the pleurotus eryngii; the fine pyrite cinder is used, so that the hydrophobic property and the ventilation performance of the culture medium are improved; good growth environment is provided for the pleurotus eryngii.

The invention discloses a preparation method of black pepper essential oil. The preparation method comprises the following steps of (1) crushing black pepper granules into black pepper powder; (2) putting the black pepper powder into an extraction kettle, and starting a supercritical CO2 extraction apparatus so as to obtain a mixture of black pepper essential oil and resin; (3) putting the mixtureof the black pepper essential oil and resins, obtained in the step (2), into a reaction kettle, performing stirring, and performing standing for layering to divide the product into 3 layers; and (4)respectively collecting yellowish transparent clear liquid at an upper layer, and a yellow semisolid product at a middle layer. According to the preparation method of the black pepper essential oil disclosed by the invention, the energy consumption of the technology of the preparation method is low, the extraction rate of effective components of the prepared black pepper essential oil is high, andbesides, the prepared black pepper essential oil has rich black pepper fragrance.

The invention provides selenium and chromium rich compound fertilizer for black rice, prepared from the following raw materials in parts by weight: 400-600 parts of nitrogen fertilizer, 800-1000 parts of phosphogypsum, 200-400 parts of potassium fertilizer, 50-100 parts of manganese fertilizer, 50-80 parts of silicon fertilizer, 30-40 parts of carbon enzyme, 50-70 parts of nitrohumic acid, 2-8 parts of organic trace elements, 3-7 parts of inorganic trace elements, 10-20 parts of biomass ash, 1-2 parts of inorganic selenium salt and 0.01-0.03 part of chromium trichloride, wherein the organic trace elements comprise a sucrose complex and a humic acid complex. The selenium and chromium rich compound fertilizer for black rice provided by the invention has the advantages of high yield quantity of black rice, strong disease resistance of plants and adaptability to large-area application, the ears of grains are large and heavy and fine in quality, and the selenium and chromium rich black rice contains selenium and chromium elements essential to human bodies and animals as well as high nutrient value and benefit to health.

The invention discloses a selenium-rich black wheat mulberry leaf nutritious biscuit and a preparation method thereof, and relates to the technical field of food processing. The nutritious biscuit comprises, by weight, 35-45 parts of selenium-rich black wheat flour, 2-4 parts of mulberry leaf powder, 12-20 parts of white granulated sugar, 15-25 parts of butter, 7-12 parts of eggs and 0.05-0.3 partof baking soda. The preparation method includes the steps: raw material and auxiliary material weighing; raw material pretreatment; paste adjustment; flour piece rolling; biscuit blank pressing; roasting; butter spraying; cooling; packaging. According to the biscuit, an appropriate amount of mulberry leaf powder is added in the making process of the biscuit, rich flavone in mulberry leaves is utilized, influence of cholesterol in the biscuit on eaters is reduced, and cholesterol of human bodies is reduced after the biscuit is eaten.

The invention belongs to the black soya bean plantation field, and specifically relates to a calcium-rich black soya bean cultivation method comprising the following steps: A, seed processing: selecting plump seeds, airing the seeds for 2-3 days, dissolving 0.8-1.2g borax into 30ml water for per kilogram seeds, mixing the seeds with the solution, drying the seeds in shade, and sowing the seeds; B, soil working and fertilizing: selecting sandy soil, applying 1000-2000kg organic fertilizer in per mu field, and rotary tillaging at the depth of 20-23cm; C, opening holes and sowing: sowing 1-2 seeds in each hole according to the sowing depth of 3-4cm, line space of 10-15cm and plant space of 45-60cm, so 10000-12000 plants can be sowed in each mu; D, field management: spraying 0.5% calcium chloride solution for one time on leaves at the black soya bean early flowering period and seed filling period. The calcium content of the black soya bean produced by the method can be stabilized between 520-610 microgram / 100g, thus greatly enhancing black soya bean health care effect.