39results about How to "Promote symbiosis" patented technology

The invention discloses an artificial lawn and a fabrication process thereof. The lawn comprises a soil basal layer, a warp knitting grid net paved above the soil basal layer, and fiber grass clusters knitted on the warp knitting grid net, wherein the warp knitting grid net is in a grid structure which is formed by interlacing warps and wefts, natural grass is inserted into grids by the warp knitting grid net, and grass roots of the natural grass are planted in the soil basal layer; the warps and the wefts are all grass silk yarn harnesses knitted and twined by fiber grass yarns, and the grass roots of the fiber grass clusters are knitted in the grass silk yarn harnesses. The process comprises the steps: producing the fiber grass yarns; arraying a plurality of fiber grass yarns side by side, then, knitting the grass yarns into a fried dough twist grass yarn harnesses, and knitting the grass yarn harnesses into the warp knitting grid net; building the soil basal layer on the ground; paving the knitted warp knitting grid net above the soil basal layer; inserting or planting the natural grass in the warp knitting grid net. The artificial lawn and the fabrication process thereof have the benefits that materials, such as base fabrics and mucilage glue, are not needed, so that the economic cost is reduced; the natural grass is planted in the grid, so that the artificial lawn and the fabrication process thereof are more real and have strong flexibility.

The invention discloses an early-strengthening type composition dispersing agent of a cement-based cementitious material. The dispersing agent is prepared by mixing the following components in percentage by weight: 10-15% of alkylolamide ferroaluminum complex, 2-7% of cationic polymer, 0.5-2.0% of a metal ion chelating agent, 15-25% of metal sulfate, and the balance of water, wherein the alkylolamide ferroaluminum complex in the composition is prepared by synthesizing inorganic acid, a chelating agent, ferrous sulfate, aluminum sulfate and alkylolamide; the cationic polymer is prepared by synthesizing polyether macromonomer, cationic micromonomer, acrylamide, a double-bond-containing silane coupling agent, mercaptoethanol, hydrogen peroxide, ammonium persulfate, sodium formaldehyde sulfoxylate, sodium hypophosphite hydrate and caustic soda liquid. With the adoption of the early-strengthening type composition dispersing agent, the early strength of the cement-based cementitious materialcan be obviously improved under low doping quantity and on the premise that the working mobility of the cement-based cementitious material is basically not influenced.

The invention discloses a gastrodia elata planting method, and belongs to the field of gastrodia elata planting. The method comprises the steps of land selecting and bed building, bacterial bed cultivating, seeding and planting, managing after planting and the like. A halimasch bacterial bed is constructed from peanut shells, corn stalks/leaves, pine needles and tree leaves, a gastrodia elata planting environment is improved, the using requirements on tree branches and trunks are reduced, deforestation is reduced, and destruction to the ecological environment in a mountain and forest region is reduced.

The invention relates to a Fe/augite metal ceramic and a preparation method thereof. Slag glass ceramic water quenching powder, iron-containing substances and reducing agents serve as raw materials and are mixed to prepare the metal ceramic. According to the metal ceramic, the iron-containing substances and silicon iron serve as nucleating agents, and eutectic growth of iron and diopside is promoted, so that the toughness and other mechanical properties of the metal ceramic are improved. The Fe/augite metal ceramic has characteristics such as wear resistance, corrosion resistance and high-temperature resistance of glass ceramics, and also has toughness of metal and good heat stability. The industrial use of the metal ceramic is greatly widened, the metal ceramic is low in production cost,and the preparation method is simple and wide in application.

The invention belongs to the field of gold ore resource dressing and particularly discloses a processing method of refractory gold ore. The method comprises the steps of smash homogenate, oxidation decarbonization, microorganism catalysis, cyanidation gold extraction and the like. The invention also discloses a microorganism microbial agent for processing refractory gold ore. When the method disclosed by the invention is utilized, sulfur, arsenic and carbon elements in the gold ore can be effectively removed, meanwhile, the leaching rate of gold elements is improved, and better application prospects are realized.

Disclosed are an ecological treatment system and an ecological treatment method for a gravel yard. The ecological treatment system comprises a soil treatment module and a planting restoration module.The soil treatment module comprises a crushing cavity, an improved matrix cavity and a mixing cavity. The planting restoration module comprises an irrigating and seeding device, a soil turning and impurity removing device and a plurality of planting troughs. The irrigating and seeding device comprises a rotating cavity, and the rotating cavity is divided into a seed storage cavity and an irrigation cavity by a partition plate. A plurality of rows of sowing devices are arranged on the outer side the seed storage cavity, and a plurality of rows of spraying heads are arranged on the outer side ofthe irrigation cavity. The soil turning and impurity removing device disposed below the irrigating and seeding device comprises a long rotating shaft and a plurality of rows of hook teeth disposed onthe long rotating shaft. Through holes are uniformly formed in the periphery of each planting trough, and gravel soil improved by the soil treatment module is paved in the troughs. The method combining physical improvement with biological improvement is adopted to fundamentally solve the problems of excessive gravel, hardening, poor water storage capacity and low nutrition of the soil of the gravel yard, and accordingly, the original ecosystem of the gravel yard is restored.

The invention discloses a mixed microbial agent for preventing and controlling brown spot of tobaccos and a preparation method of the mixed microbial agent, and belongs to the technical field of biological pesticide. The mixed microbial agent comprises 15-25% of Achromobacter, 5-15% of Enterobacter sp., 5-15% of Ochrobactrum sp., 40-60% of Stenotrophomonas sp. and 5-15% of Bacillus subtilis. The preparation method of the mixed microbial agent comprises the step of preparing the composite microbial agent from the Achromobacter, Enterobacter sp., Ochrobactrum sp., Stenotrophomonas sp. and Bacillus subtilis at a volume ratio, and the application mode of the microbial agent comprises the steps: adopting spray application, and spraying the microbial agent to both sides of leaves. It is proved through experiments that the prepared microbial agent has a high inhibitory effect on pathogenic bacteria of tobacco brown spot, and a good disease prevention effect on tobacco brown spot is achieved;and the microbial agent has low cost, a good effect and environmental protection, and therefore good prospects for biopesticide development are achieved.

The invention discloses a preparation method for a synergistic bacterium type straw decomposing agent with high enzyme yield, and belongs to the technical field of straw decomposing agent preparation. The preparation method comprises the following steps: fermenting mixed strains which mainly comprise bacillus subtilis and trichoderma viride produced in a natural environment together; enabling the mixed strains which mainly comprise the bacillus subtilis and the trichoderma viride to perform natural symbiosis and competition to obtain mixed bacteria; selecting the strains which can produce cellulose through a screening culture medium; further improving the enzyme yield of the strains through irradiation improvement; providing attachments and nutrition sources by taking straws and wheat bran as mutant strains so as to improve the survival rate of the strains; freezing and drying to prepare the decomposing agent. According to the decomposing agent provided by the invention, the symbiotic synergistic effect among the strains is fully realized through natural screening; moreover, the content of effective bacteria is improved; the enzyme yield is increased; the activity is high; the decomposing agent has an extremely good straw decomposition promoting effect.

The invention discloses a method for producing hydrogen by compounding facultative hydrogenogen with anaerobic bacteria. One facultative hydrogenogen is compounded with two anaerobic bacteria in a 10L fermentation tank to produce hydrogen according to different compounding schemes. In the batch fermentation hydrogen production process, three strains form four compounding schemes; different compounding schemes are mixed according to the same ratio at the total inoculating concentration of 10 percent to obtain a facultative hydrogenogen and anaerobic bacteria common compounding scheme which has the optimal characteristic of producing hydrogen, the fermentation period of 24h, the hydrogen gas yield of a unit substrate of 1.885molH2/mol glucose and the average hydrogen producing speed of 212.20ml/(h.L); the optimal compounding scheme of the batch fermentation process is applied to a continuous fermentation process; and the glucose is fed in batch at the constant flow speed of 5g/h for 120h and is fermented and cultured for 5 days to further produce hydrogen continuously and stably.

The invention discloses a culture method for mycorrhizal seedlings of alnus nepalensis. Arbuscular mycorrhizal fungi is inoculated in a culture period to facilitate growth of alnus nepalensis. The culture method comprises the following steps: selecting turf, vermiculite and perlite as culture medium raw materials and sterilizing the raw materials; scattering alnus nepalensis seeds in a sterilizedculture medium; filling a 200 ml seedling growing container with the culture medium, and transplanting the alnus nepalensis seedlings growing with 2-3 main leaves into the seedling growing container;and inoculating an arbuscular mycorrhizal fungi fungicide while transplanting the alnus nepalensis seedlings into the seedling growing container and carrying out conventional management on a nursery stock. By inoculating an arbuscular mycorrhizal fungi fungicide while transplanting the alnus nepalensis seedlings into the seedling growing container, good symbiosis of the alnus nepalensis seedling root system and the arbuscular mycorrhizal fungiis achieved, development of the root system is good, and the high diameter growth of the alnus nepalensis mycorrhizal seedling can be improved obviouslyby fixing the arbuscular mycorrhizal fungi in the root system. The alnus nepalensis cultured by the culture medium by the method is light in weight of the culture medium, and in an afforestation process in a mountainous region, the nursery stock transportation cost can be lowered obviously.

The invention relates to a bone repair material for large-volume defect of mandible, and belongs to the technical field of bone repair. The bone repair material is an organic/inorganic composite material, an organic phase comprises collagen, silk fibroin and toughened polylactic acid, an inorganic phase comprises nano-hydroxyapatite and zinc silicate, and the bone repair material is prepared through the following steps that 1, collagen/silk fibroin-based nano-hydroxyapatite is prepared; step 2, preparation of toughened polylactic acid; and 3, mixing the mixed powder, the zinc silicate powder and the toughened polylactic acid solution, uniformly stirring, freezing at-20 to-10 DEG C for 24-48 hours, freezing at 0 DEG C for 24-48 hours, carrying out vacuum drying, crushing, screening, adding into a mold, and carrying out cold press molding, so as to obtain the bone repair material for the large-volume defect of the lower jawbone. The bone repair material provided by the invention has excellent strength and toughness, and excellent biocompatibility and degradation rate.

A rice-shrimp polyculture field microbial complex inoculant is prepared from four stains including photosynthetic bacterium, bacillus subtilis, zinc sulfate, bacillus licheniformis and sugarbeet saccharose serving as an additive; in parts by mass, 18 parts of photosynthetic bacterium, 12 parts of bacillus subtilis, 20 parts of sugarbeet saccharose, 2 parts of zinc sulfate and 5 parts of bacillus licheniformis are mixed to prepare a mixed agent; the microbial complex inoculant further comprises 43 parts, by mass, of pure water; the pure water serves as a diluent to be mixed with the mixed agentto prepare the complex inoculant; the effective number of living bacteria of the photosynthetic bacterium, the bacillus subtilis and the bacillus licheniformis in the complex inoculant is higher thanor equal to 0.2 billion/liter; the applied photosynthetic bacteria can be rhodopseudomonas palustris; the applied bacillus licheniformis can be bacillus latersprorus and paenibacillus polymyxa; and the photosynthetic bacteria can be rhodospirillum rubrum and purple nonsulfur bacteria.