43results about How to "Meet the requirements of growth" patented technology

A turf protection utilization method is provided for turf protection utilization programming and planning, and comprises the following steps: delimiting a turf protection level according to nature vegetation types and coverage; delimiting a vegetation retrieval level according to rainfall, temperature and soil factors; carrying out field investigation to check two said levels; superposing and delimiting a plurality of ecology control sections; determining the turf excavating technology according to the vegetation types and coverage in each ecology control section; selecting three protection technologies according to road engineering construction progress and turf utilization time intervals, wherein the three technologies include piled stacking, layered stacking, and skeleton layered temporary planting; determining three planting modes according to wind erosion and water erosion characteristics and propagation coefficients, wherein the three planting modes include a chessboard type, a tic-tac-toe mode and a bar stripped mode. The method can scientifically unify turf protection and utilization planning, storage and utilization, thus providing best ecology benefits; the turf protection utilization method is practical in applications.

The invention discloses a composite substrate water retaining agent. The water retaining agent comprises an additive and an adhesive, wherein the additive comprises soluble starch, bamboo charcoal powder or corncob pyrolysis powder; and the adhesive is beta-cyclodextrin and sodium carboxymethyl cellulose. The environment-friendly substrate water retaining agent is prepared from raw materials which are natural, pollution-free, wide in source and easy to degrade, has high water absorbing capacity and water retaining efficiency, can replace an expensive high molecular compound water retaining agent, and solves the problems that culture substrates (such as peat, turf and soil) in agriculture and forestry production and floriculture have low water retaining capacity, the common high molecular compound is low in degradation rate and high in cost, and the like.

A comprehensive improvement method for salinized soil includes S1, applying fertilizer; S2, performing soil preparation, namely building an arc-shaped gentle slope every 5-10 meters and digging an open trench between bottoms of every two arc-shaped gentle slopes; S3, laying pipes and irrigating, namely laying rotating micro sprinklers at the tops of the arc-shaped gentle slopes; S4, sowing suaeda salsa; S5, irrigating; S6, picking vegetables; S7, transplanting plants from late October to early November after seeds of the plants are mature and part of the seeds fall off. The comprehensive improvement method has the advantages that the salinized soil of coastal saline and alkaline land can be restored pointedly, improvement time can be shortened, and economic benefit can be achieved.

The invention relates to a method for promoting lactic acid in kitchen rubbish fermentation by using mushroom bran, belonging to industrial bacterial fermentation engineering technique. It comprises following steps: (1) disintegrating kitchen rubbish, adding mushroom bran according to proportion of 10- 20% of that of solid kitchen rubbish; (2) adding water into solid kitchen rubbish according to proportion of 1: 1- 1: 3, moderating water content for fermentation system; (3) disinfecting mixed kitchen rubbish, adding sterile calcium carbonate to keep pH for fermentation system between 5 to 6; (4) inoculating lactic acid bacteria according to proportion of 6- 10%, anaerobic fermenting at 45 Deg. C for 25- 40 hours; (5) separating solid from liquid, purifying fermentation liquor and getting lactic acid. The invention employs mushroom bran as additive, which can not only increase lactic acid production, but aslo makes full use of mushroom bran and releases environment pollution.

The invention provides a ternary oxide nano structure. The nano structure is a compound with a molecular formula of AxByOz, wherein A is Cu, Fe, Co, Ni or Zn; B is Mo; xa+yb=2z; and a and b are the valence states of metal elements A and B respectively. The invention also provides a method for preparing the nano structure. The invention also provides a nano material which comprises the nano structure. The nano structure is a ternary nano structure, and the nano material is a ternary nano material. The preparation method does not need any catalyst, is simple and has a low cost.

The invention discloses a porous material for a tissue engineering stent. The porous material for the tissue engineering stent is prepared from 25-40% of polycaprolactone, 30-45% of polyethylene oxide and 25-40% of sodium bicarbonate according to a method as follows: uniformly mixing the raw materials; extruding in a twin-screw extruder for granulating; foaming and moulding by a conventional microporous foaming and moulding technology to obtain an intermediate product; leaching the obtained intermediate product in a circulating water bath; and performing vacuum drying to obtain a porous material with the porosity of 68-74.0%, the pore size of 20-200 microns, and the sizes of internal intercommunicating passages of about 20-200 microns. The porous material for the tissue engineering stent has the advantages as follows: in the foaming process, not only supercritical carbon dioxide for microporous foaming and moulding can generate a foaming action, but also gas obtained by decomposing sodium bicarbonate can generate a foaming action, so that by a combined physical and chemical foaming method, the finally obtained porous material can meet a growth requirement of a biological cell.

The invention relates to a siphon type batch spray bioreactor belonging to the biotechnology field, wherein a port of a liquid storage bottle is connected to a gas-liquid mixture agitation tank by a first liquid pump, a gas nozzle is arranged at internal bottom of the gas-liquid mixture agitation tank, a gas flow meter outside the gas-liquid mixture agitation tank is connected to the gas nozzle, an output end of the gas-liquid mixture agitation tank is connected to an input end of a spray device, an output end of the spray device and an input end of the reactor main body, an output end of the reactor main body is connected to a continuous harvesting apparatus, a waste liquid output port of the reactor main body is connected to a waste liquid bottle, the continuous harvesting apparatus is connected to a reclaiming end of the reactor main body through a second liquid pump, an oxygen probe and a pH probe are arranged in the reactor main body and the oxygen probe and the pH probe are connected to a computer. The invention has advantages of simple design, convenient operation and low cost.

Disclosed is a novel off-ground treatment technology for drilling fluid. According to the two mechanisms of colloid chemical coagulation and solid waste flocculation, a colloid coagulation agent, an acidifying agent, stepless coagulant aids and a decolorising agent are sequentially added into the waste drilling fluid and stirred step by step, and finally, a mud-water separation effect is realized through a mechanical separation mode. The novel off-ground treatment technology for the drilling fluid is simple, safe in operation, low in cost, good in repeatability and suitable for industrial application. Solid mud obtained through the method is large in density, hard in texture and good in dispersing performance, has good application value in plate and frame moulding, and meanwhile can be used for making ornamental ceramic crafts.

The invention discloses a rare earth orthoferrite monocrystal growth method. First crystal growth is carried out by an optical float zone growth method to obtain monocrystals in one direction; and then, the monocrystals are used as seed crystal bars for cyclic growth so as to obtain monocrystals in three directions. The invention also discloses an application of the rare earth orthoferrite monocrystal growth method in the preparation of a rare earth orthoferrite monocrystal material. According to the invention, characteristics of a rare earth material are combined, the optical float zone growth method is used, and technological parameters such as monocrystal growth speed, charge bar rotational speed and air flow, etc. are controlled so as to obtain a stable melt; and monocrystals are used as seed crystal bars so as to cyclically grow rare earth orthoferrite RFeO3 functional monocrystals in definite three crystallographic directions a, b, c. During the whole preparation process, there is no corrosion or pollution, crystal perfection is good, crystalline quality is good, crystal growth efficiency is high, and repeatability is good.

The invention relates to a pholiota nameko cultivation base material and a preparation method thereof. The cultivation base material comprises a main material and an auxiliary material which comprise,by weight, 200-300 parts of agrocybe cylindracea mushroom dregs, 180-260 parts of waste tea leaves, 130-180 parts of fruit tree branch scraps, 80-120 parts of grass materials, 140-200 parts of cow dung, 8-15 parts of compound fertilizers, 15-25 parts of gypsum powder and 30-40 parts of lime powder. The cultivation base material prepared by the method is balanced and rich in nutrition, the agrocybe cylindracea mushroom dregs and the waste tea leaves serve as the main material, waste produced by edible fungi can be effectively utilized, cost can further be reduced, raw materials for preparing the cultivation base material are easily acquired and produced and low in cost, growth of pholiota nameko is facilitated, the yield and the quality of the pholiota nameko can be improved, and the raw materials do not contain pesticides and cannot pollute environments, so that the produced pholiota nameko does not contain pesticide residues and meets requirements of green food.

The invention relates to a method for fertilizing with open cavity. Wherein, it digs open cavities on the ridges at two sides of vegetables of irrigation groove; the open cavity is at the inner side of irrigation groove while it opens to the groove; the bottom of cavity is higher than the bottom of irrigation groove at 5-10cm, while the bottom is higher than the water level of irrigation; at 1-2 days before irrigation, putting 5-15g fertilizer into cavity; irrigating the flow into cavity, to dissolve and expand fertilizer. The invention can reduce the process to dig cavity and cover soil, to utilize fertilizer fully. The invention can realize integrated fertilization.

The invention discloses a mushroom nutrition cover earth formula and application of Chinese pennisetum for preparing mushroom nutrition cover earth; the Chinese pennisetum powder, red earth, salt solution, grey mould bane fungicide water solution and lime are prepared, mixed according to the ratio and prepared into the pile, the water is added to the top of the pile and the pile is kept for many days, the hardened mixed nutrition earth is crushed, the soil of which the diameter of the soil particle is 0.5-1.0cm is 70-80%, the soil of which the diameter of the soil particle is less than 0.5cm is 20-30% and the pH is 7.5-8.0. The mushroom cover earth material has large saturation moisture content, good water binding capacity, big porosity and more organic matter content; the water moisturizing performance of the cover earth is good, the unit area yield of the mushroom is greatly increased, the mushroom quality is stable, the mushroom cover earth material meets the growth requirement in the summer and is the ideal man-made cover earth at present, and the raw materials are easy to obtain, the manufacture cost is low, the mushroom nutrition cover earth formula is beneficial for protecting the farm land, protecting environment and avoiding the pesticide residue and mixed bacterium infection problem; the large-scale intensive production can be achieved conveniently for meeting the annual mass factory industrialized production requirement.

The invention provides an improvement agent for red mud in-situ soil and an application method thereof, the improvement agent comprises a main agent and an auxiliary agent, the main agent comprises inorganic acid waste and organic acid waste; the auxiliary agent comprises an organic fertilizer, an inorganic fertilizer and a microbial agent; the microbial agent comprises halomonas, Nesterensis and bacillus. The application method comprises the following steps: S1, preparing a premix; step S2, preparing a neutralized substance; s3, forming a red mud improvement layer; and S4, activating and diluting the microbial agent, and spraying the microbial agent on the red mud improvement layer. The red mud environment in which plants can normally grow and develop is established, positive evolution of the red mud towards the soil direction is promoted, and thus ecological restoration and ecological reconstruction of the red mud storage yard are achieved, and the problem that the red mud storage yard returns alkali and salt to hinder vegetation growth is solved.

The invention relates to a preparation method of a poly hydroxybutyrate caproic-acid copolyester tissue engineering scaffold. The preparation method comprises the steps that after 25-40% of poly hydroxybutyrate caproic-acid copolyester, 30-45% of polyoxyethylene and 25-40% of sodium bicarbonate are prepared into a mixed solution, spinning is performed to obtain poly hydroxybutyrate caproic-acid copolyester nanofiber, the nanofiber is processed in supercritical CO2, an intermediate product is prepared by controlling the processing pressure and processing temperature, the obtained intermediate product is drained and filtered in a circulating water bath and then is subjected to vacuum drying, and the tissue engineering scaffold with the porosity up to 68-74.0%, the bubble hole size of 20-200 microns and the internal intercommunication channel size of about 20-200 microns and made from a porous material can be obtained. The preparation method can complete fiber crosslinking and fusion between in a low temperature state without solvents, crosslinking agents and the like, and cytotoxicity is not produced.

The invention relates to an edible fungi cultivation method, in particular to a novel technique for solid germination of Agaricus bisporus in piles in a tunnel, which is a novel high-yield and short-period technique and includes: sowing medium subjected to secondary fermentation; evenly piling the medium in the fermentation tunnel for pile type solid germination; adding 32.5% of accessory dry substances, 7.5% of CP (crude protein), 5.7% of CF (crude fiber), 0.319% of Ca (calcium) and 0.2% of P (phosphorus) during sowing; frequency variation rate of air supply is adjusted to 80% after sowing, and keeping 30%-65% of a fresh air proportion to maintain medium temperature at 23-26 DEG C; and performing pile type solid germination in the fermentation tunnel for 15-18 days to complete pile germination of the Agaricus bisporus culture medium. Management time is effectively saved for a mushroom house, turnover rate is increased, additional two crops of mushrooms are obtained, yield per unit area can be increased greatly, benefits are improved, operational cost of air conditioners can be reduced greatly, and power consumption can be lowered evidently.

The invention relates to a preparation method for preparing a polylactic acid tissue engineering scaffold. According to the method, 25-40% of polylactic acid, 30-45% of polyoxymethylene and 25-40% of sodium bicarbonate are mixed up to prepare a mixed solution and then the mixed solution is subjected to spinning to obtain polylactic acid electrospun nanofibers. The nanofibers are processed in supercritical carbon dioxide. Through controlling the processing pressure and the processing temperature, an intermediate product is obtained. The obtained intermediate product is subjected to leaching in the circulating water bath and then drying in vacuum, and then the tissue engineering scaffold is obtained. The obtained tissue engineering scaffold is made of porous materials, wherein the porosity of the tissue engineering scaffold is 68 to 74.0% and the cell size of the tissue engineering scaffold is 20 to 200 microns. The dimension of the inner communicating channel of the tissue engineering scaffold is about 20 to 200 microns. According to the technical scheme of the preparation method in the invention, fibers can be cross-linked and fused at a relatively low temperature without any solvent or cross-linking agent. Meanwhile, the generation of cytotoxicity is avoided.

The invention relates to a preparation method of a polycaprolactone tissue engineering scaffold. The method includes preparing 25-40% of polycaprolactone, 30-45% of polyoxyethylene and 25-40% of sodium bicarbonate into mixed solution, performing spinning to obtain polycaprolactone nanofibers, treating the nanofibers in supercritical CO2 to obtain an intermediate product by means of controlling treatment pressure and treatment temperature, and subjecting the obtained intermediate product to percolation in circulating water bath prior to vacuum drying to obtain the tissue engineering scaffold made of a porous material with the porosity reaching 68-74.0%, the cell size being 20-200 microns and the size of internally mutually communicated channels being about 20-200 microns. The preparation method can finish inter-fiber crosslinking and fusion at low temperature without solvent, cross-linking agent and the like, and cytotoxicity is avoided.

The invention discloses a composite substrate water retaining agent. The water retaining agent comprises an additive and an adhesive, wherein the additive comprises soluble starch, bamboo charcoal powder or corncob pyrolysis powder; and the adhesive is beta-cyclodextrin and sodium carboxymethyl cellulose. The environment-friendly substrate water retaining agent is prepared from raw materials which are natural, pollution-free, wide in source and easy to degrade, has high water absorbing capacity and water retaining efficiency, can replace an expensive high molecular compound water retaining agent, and solves the problems that culture substrates (such as peat, turf and soil) in agriculture and forestry production and floriculture have low water retaining capacity, the common high molecular compound is low in degradation rate and high in cost, and the like.

The invention discloses a pollution-free organic big-head milter and flat fish feed, which is prepared by fermenting the following materials in part by weight: 100 to 300 parts of bran, 100 to 300 parts of peanut residue, 100 to 300 parts of corn flour, 50 to 200 parts of brown sugar, 100 to 300 parts of lees, 100 to 300 parts of wheat bran and 5 to 20 parts of yellow wine vinegar. The invention also discloses a preparation method for the pollution-free organic big-head milter and flat fish feed, which comprises the following steps of: (1) crushing the materials: crushing the bran and the wheat bran into powder to obtain bran powder and wheat bran powder for later use; (2) mixing: weighing the bran powder, the peanut residue, the corn flour, the brown sugar, the lees, the wheat bran powder and the yellow wine vinegar in a ratio, and then mixing the materials uniformly to obtain a mixed material; and (3) fermenting and decomposing: putting the mixed material obtained in the step (2) into a fermentation container to perform closed fermentation, heating the material to the temperature of between 45 and 70 DEG C during fermentation, and obtaining the organic big-head milter and flat fish feed in 5 to 7 days of fermentation. The materials do not contain harmful components to the human body, do not cause medicinal residues in the raised fish, and are suitable for the taste of the big-head milter and the flat fish.

The invention relates to a preparation method of a polylactic acid and inorganic particle complex tissue engineering scaffold. The preparation method comprises the following steps: preparing a mixed solution from 25-40% of a polylactic acid and inorganic particle complex, 30-45% of polyvinyl alcohol and 25-40% of sodium hydrogen carbonate, and then spinning to obtain polylactic acid and inorganic particle complex nano fibers; treating the nano fibers in supercritical CO2 to obtain an intermediate product by controlling treatment pressure and treatment temperature; and leaching the obtained intermediate product in a circulating water bath, and then performing vacuum drying to obtain a tissue engineering scaffold of a porous material of which the porosity reaches 68-74.0%, the cell size is 20-200 microns, and the size of an internal interconnected passage is about 20-200 microns. According to the preparation method provided by the invention, crosslinking and fusion can be completed between fibers at a relatively low temperature without adopting a solvent, a crosslinking agent and the like, and cytotoxicity cannot be generated.

The invention discloses a vegetation concrete block and a preparation method thereof, and belongs to the field of building materials, the vegetation concrete block comprises the following substances by mass: 40 to 60 parts of dead burned magnesia, 150 to 170 parts of ferronickel slag aggregate, 5 to 20 parts of siliceous and silicon-aluminum admixture, 0.2 to 0.8 part of redispersible latex powder, 1 to 2 parts of water release material, 8 to 10 parts of potassium dihydrogen phosphate, 0.5 to 1 part of superplasticizer, and 5 to 10 parts of mixing water; the preparation method comprises the following steps: preparing a potassium dihydrogen phosphate saturated solution as a spray liquid, proportioning other raw materials, stirring, carrying out vibration molding, carrying out spray treatment, removing the mold, carrying out spray maintenance, inspecting, stacking the finished product and the like. After a cementing material is hardened, the phase is stable, the structure is compact, thecementing material has good carbonization resistance, abrasion resistance and corrosion resistance, the cementing material is endowed with good biocompatibility due to the weakly alkaline characteristic, and the cementing material is endowed with an excellent water quality improvement function together with the phase structure and the porous structure.

An energy-saving and environment-friendly electric heating draught fan is used for heating and temperature rise in agriculture planting greenhouses in freezing winter in high-altitude countries and regions. The energy-saving and environment-friendly electric heating draught fan comprises a heat exchange box body, a heating pipe, a heating substance in the heating pipe, and a high-speed draught fan. According to the energy-saving and environment-friendly electric heating draught fan, the heating substance is activated through electricity, so that the heating substance releases latent heat, and the electricity-heat conversion efficiency is improved. The heat efficiency of the energy-saving and environment-friendly electric heating draught fan produced through the technology that the heating substance is activated through electricity to release the latent heat reaches 365.76%. The energy-saving and environment-friendly electric heating draught fan with the input power being 10.8 kW is installed in a standard agriculture planting greenhouse with the area being 666 square meters. The temperature in the greenhouse reaches 17 DEG C under the condition that the environment temperature is -10 DEG C, and the requirements for growth of vegetables, melons and fruits, and flowers can be met. Energy is saved by about 80% compared with an ordinary electric heating draught fan.

The invention provides a microbial organic fertilizer which comprises mature green hypocrea and rotten fertilizer according to the volume ratio of 1:(10-50), and the effective spore amount of mature green hypocrea in the microbial organic fertilizer is 2.0*108 cfu / g or above. The microbial organic fertilizer has a high prevention and treatment effect on plant diseases and insect pests, underground injurious insects such as root-knot nematode, mole cricket, grub and wireworm and plant diseases such as root rot and damping off are reduced, the microbial organic fertilizer can replace part of chemical pesticides for use, the application frequency of chemical pesticides is reduced, and production cost is reduced for farmers. By means of mature green hypocrea, the growth of root systems and plants can be promoted, the growth of plant vegetative organs is promoted, and the yield of crops is increased. The microbial organic fertilizer can not cause drug resistance and can reduce the environmental pollution problem caused by chemical fertilizer and chemical pesticides after being used for a long time.

The invention provides a productive organic building skin, which comprises a productive skin unit with an open top, and the outer wall of the productive skin unit is alternately arranged with multiple rows of production devices and multiple rows of fresh air windows from top to bottom, and the production devices and fresh air windows The windows are all connected to the production skin unit; the production skin unit is used to increase the natural ventilation flow rate inside the production organic building skin; the production device is used for the organic production of animals and plants, thermal energy production and / or electric energy production; the fresh air window is used for Collect outside air. The productive organic building skin of the present invention has the overall characteristics of compact structure and integrated functions, and can meet both architectural appearance requirements and functional requirements; it can not only meet the requirements for beautifying the appearance of the building skin, but also simultaneously carry out food production and energy production; At the same time, electricity, hot and cold water, and fresh food are produced.

The invention belongs to the technical field of maltose production, and particularly relates to an intelligent malt culture system and method for maltose production. The system comprises a paving part and a rack. According to the intelligent malt culture system, two first rollers rotate through a controller, then a conveying belt is driven to move, wheat is evenly spread on the conveying belt, then the wheat is cultivated, after malt cultivation is completed, the controller controls the conveying belt to rotate in the reverse direction, then the malt is moved into a material receiving piece, and then malt collection is achieved; automatic wheat paving and automatic malt collecting are achieved through the controller, manual paving and collecting are avoided, manpower is saved, and cost is lowered; the spreading thickness of the wheat at each part is consistent, the nutrients absorbed by the malt at each part are kept equal accordingly, the growth conditions of the malt at each part are kept consistent, the nutritional ingredients contained in the malt at each part are consistent, the quality of the malt is improved, and the quality of the maltose is further improved.