40results about How to "Help growth" patented technology

The invention discloses a multifunctional clay-base sand stabilizing material integrating a water saving function, a temperature regulation function and a sand stabilizing function, and belongs to the field of sand control and sand stabilization. The sand stabilizing material adopts clay, biomass waste, animal bones, animal excrement, perlite, lactic acid, potassium hydroxide, phosphoric acid, natural emulsifier and cellulose as raw materials and is prepared in a given process. When in use, the clay-base sand stabilizing material is directly sprayed onto the surface of desert by utilizing a spraying device, and the crust thickness is controlled at 5mm to 10mm. The experiment shows that the product integrates the temperature regulation function, the water saving function and the sand stabilizing function; moreover, raw materials are natural products, so that the cost is low, the preparation process is simple, secondary environmental pollution is avoided, and the clay-base sand stabilizing material plays a positive role in restoring and rebuilding vegetation of a desert area.

The invention relates to drug carrier micro ball composite calcium phosphate skeleton cement used in the rebuilding construction of spine tumor surgery. The invention uses micro balls as carrier to be combined with the anti-tumor drug to obtain the carrier micro ball, then to be mixed with calcium phosphate skeleton cement, therefore, the invention can avoid blasting effect after transplantation to support releasing the anti-tumor drug and holding stable density, and support growing fresh skeleton. The invention can be used to replace CPC carrier.

The invention discloses a three-dimensional porous support frame material containing carbon nanometer tubes and a preparation method thereof, which belong to the technical field of biomedical materials. The support frame material consists of high-molecular-material polylactic acid (PLA), high-intensity fiber (CHI) and carbon nanometer tubes (CNTs), wherein the high-molecular-material PLA has good biocompatibility, the CHI is woven by natural polysaccharide chitin, and the CNTs have higher protein absorption capability, can promote cells to be differentiated in the sclerotin direction and is generated from bone tissues. A preparation process mainly comprises a method of combining physical mixing and ultrasound dispersion technology. In order to realize a better enhancing effect of the CHI, a protein cross linking reagent of N, N'-dicyclohexylcarbodiimide (DCC) is adopted for cross linking of the CHI and the PLA. The three-dimensional porous support frame material belongs to a novel support frame material used for bone restoring, has a three-dimensional porous structure, has good biocompatibility and bone inductivity, and is very hopeful to be widely used as bone tissue coloboma restoring materials clinically.

The present invention relates to a brown rice shoot cultivating device which is adapted to artificially germinate brown rice and grow the shoots and is adapted to have a function whereby air and water are autonomously cleaned, and wherein an appropriate environment including the light irradiation time and water supply time is selected such that not only is the shoot growth rate improved but also it is possible to obtain a high content of active components such as arabinoxylan, melatonin and GABA. Also, the invention concerns a technique relating to a cultivation method allowing the cultivation of brown rice shoots for food, without rotting of the germinated brown rice. Again, the present invention relates to a food produced by using the brown rice shoots cultivated by means of the cultivation method. Also, the present invention relates to a method for producing food by using the brown rice shoots cultivated by means of the cultivation method.

The invention discloses a plant cultivation medium and a preparation method thereof. The plant cultivation medium includes paper pulp, an organic fertilizer and a preservative agent; and the weight ratio of the paper pulp, the organic fertilizer and the preservative agent is the paper pulp: the organic fertilizer: the preservative agent= 100: 1-50: 0.05-0.5. Compared with the prior art, the preparation method has the following beneficial effects: 1), the plant cultivation medium can keep water in long term, can avoid waterlogging, and can facilitate the growth of plants; 2), the paper pulp covers the organic fertilizer, which can ensure continuous growth of the plants; 3), the preservative agent can prevent the plant cultivation medium from decomposition, and ensure the healthy growth of roots of the plants; 4) the paper pulp has high plasticity, various colors and shapes can be set, and the ornamental value is high; 5) drying treatment is performed on the paper pulp, the dried paper pulp is light, is clean, and is easy to use and transport; and 6), the plant cultivation medium is easy to prepare and is low in cost, can be recycled, and has a wide market prospect in the field of potted plants.

The invention discloses a bone tissue engineering scaffold which compounds bone-like tissue engineering materials with human mesenchymal stem cells and a preparation method of the bone tissue engineering scaffold, and belongs to the technical field of tissue engineering. The bone tissue engineering material is prepared by compounding mineralization collagen (MC), polylactic acid (PLA) and natural chitin woven high-strength fiber (CHF); because of the adding of the MC, the material is good in mechanics integration, and the components of the material are close to natural bones; due to the adding of the PLA, the material is good in molding property; by adopting the CHF, the material is enhanced, and the acid degradation product of the PLA is neutralized by the degradation product; and the bone tissue engineering material can be degraded and has a three-dimensional porous structure. By adopting the scaffold formed by compounding the bone tissue engineering material with the human mesenchymal stem cells, people go through goat tibia bone defect with the bone spaces of 25mm after eight weeks, the bone defect is completely recovered after the implantation of the scaffold, and the recovery effect and the self-bone have no obvious difference; and therefore, the bone tissue engineering scaffold is hopefully applied to clinic.

The invention relates to a planting method for improving the yield of organic waxy corns. The planting method for improving the yield of the organic waxy corns includes the following steps: selectionand processing of varieties, site preparation and fertilization, seedling raising, transplanting and final singling of the seedling, field management and harvesting. As for the adopted planting method, seed selection and treatment and soil preparation and fertilization on the planting site before planting contribute to the growth of seedling. Especially, by placing nutrient substrate into a seedling nursery tray for pregermination and seedling nursery in the seedling nursery period, adequate nutrition can be provided for the corn seeds after seed soaking treatment. In addition, during the transplanting and the final singling of the seedling, seedlings with seedling nursery soil are planted in the planting holes one to one, the transplanting and the final singling of the seedling are carried out in a planting way of small- and medium-sized rows, and field management and other measures are taken, thus the resulting waxy corns have high yield, short growth cycle, good taste, and high nutritional value. The method is simple and widely applicable, and not only ensures rich nutrients of the waxy corns, improves the quality of the waxy corns, but also improves the profits of producers.

The invention provides a controllable siphon alternating-type fish and vegetable co-existing system. The controllable siphon alternating-type fish and vegetable co-existing system comprises an aquaculture system, a control system, an alternating-type water circulating system and a gravel planting bed system; a water inlet position is arranged at one side of a fishpond, and a water outlet positionis arranged at the bottom of the other side of the fishpond; the gravel planting bed system comprises a gravel planting bed, a water supply side is arranged at one side of the gravel planting bed, andis located at the same side as the water outlet position of the fishpond, a water return side is arranged at the other side of the gravel planting bed, and is located at the same side as the water inlet position of the fishpond, and the water outlet position of the fishpond is connected with the water supply side of the gravel planting bed through a siphon pipe and a water supply pipe. By means of the controllable siphon alternating-type fish and vegetable co-existing system, an alternating water circulating structure is adopted, dissolved oxygen is added when water flows past the gravel planting bed, when flowing past the fishpond, the water is continuously fed to fish, the whole process is free of residue of pesticide and drugs, and the water quality is suitable for the existence of thefish and plants, so that the fish does not easily get sick in a high-density environment, and the yield is greatly increased.

The invention discloses a porous biological piezoelectric ceramic and a preparation method thereof. By using natural egg white as a foaming agent, foam stabilizer and curing agent, a foaming process is utilized to prepare the LNK biological piezoelectric ceramic material with abundant pores and uniform pore size. The mass ratio of LNK powder to water in the slurry is 1:(0.5-1); and the foaming agent accounts 20-35 wt% of the deionized water in the slurry. When the mass ratio of the LNK ceramic powder to the deionized water is 1:0.67 and the foaming agent accounts for 30 wt% of the deionized water in the slurry, the porous biological piezoelectric ceramic has the best piezoelectric properties, wherein the piezoelectric constant d33 is 48 pC / N, and the relative dielectric constant is 67.29. At this time, the porosity of the porous LNK is up to 55%, the pore size distribution is 100-400 mu m or so, and all pore are open and communicates with each other. The LNK porous biological piezoelectric ceramic has excellent piezoelectric properties, and can stimulate cells and promote cell proliferation and differentiation; the porous structure is beneficial to growing in of cell tissues, and promotes better formation of bones; and thus, the LNK porous biological piezoelectric ceramic can be used as a bone substitute material in the fields of biology, medicine and the like.

The invention provides a plant culture medium and a preparation method and application thereof. The medium is prepared from, by weight, 80-90 parts of paper pulp, 20-25 parts of organic fertilizer, 10-15 parts of egg shell powder, 20-40 parts of turf, 30-60 parts of vermiculite, 1-3 parts of preservative and 0.5-1 part of growth regulator. The preparation method includes the following steps that water is added into paper or waste paper, pulping is carried out, and the paper pulp is prepared; the organic fertilizer is produced from animal waste and straw or green grass through intermediate-temperature anaerobic fermentation or aerobic fermentation; the organic fertilizer, the preservative, the egg shell powder, the turf, the vermiculite and the growth regulator are added into the paper pulp, the materials are stirred to be uniform and then dehydrated, microwave sterilization and drying or drying in the sun are carried out, and the plant culture medium is obtained. It is guaranteed that uniform moisture of the medium is kept for a long time, the growth regulator is added, plants can rapidly grow and have excellent quality, it is guaranteed that the medium is not likely to rot through the preservative, and it is guaranteed that the roots of the plants grow healthily.

The invention discloses a method for planting tea. The method comprises the step of soil improvement, wherein a sandy land with a slope of 20 degrees or below is selected as a land to be planted with tea trees, ploughing is evenly conducted, soil improvement fertilizer is applied according to 100-120 kg / mu, the soil with the land improvement fertilizer is naturally maintained for 1-2 days, deep ploughing is conducted on the land to be planted with the tea trees, soil improvement fertilizer is applied to the land to be planted with the tea trees after deep ploughing according to 50-60 kg / mu again, air drying is conducted for 8-12 days, and finally, the land is finely ploughed to obtain improved soil. The method for planting the tea has the advantages that through various organic combinations and the cooperative utilization of nutrients, the problem is solved that the nutrient content of soil in a tea plantation is not high; meanwhile, the soil improvement fertilizer is wide in source, so that the utilization efficiency of natural resources is improved, the ecological communities of the tea plantation are enriched, the ecological balance is maintained, the content of manganese, zinc and selenium and other elements in the soil of the tea plantation is increased, and therefore the growth of the tee trees is facilitated.

The invention belongs to the field of biological medical materials and particularly relates to bone cement with induction and degradation characteristics and a preparation method of the bone cement with the induction and degradation characteristics. The bone cement is made by powder and solidification liquid according to a ratio of 1:(0.3-1.2); the powder is prepared from, by mass, 30%-70% of calcium sulfate salt, 20%-60% of calcium phosphate salt, 0.1%-5% of inorganic additives, 0.1%-5% of organic additives and 0%-20% of DBM bone powder; the solidification liquid is phosphate solution. The bone cement is excellent in compressive strength, biocompatibility, bone conductivity and bone inductivity, and degradation speed of the bone cement is equivalent to bone growth speed. The bone cement can be made into different dosage forms by control of a liquid-solid ratio, injection products can be used for minimal invasive surgery and are great in collapse resistance, and paste products can be shaped arbitrarily to meet various demands of patients.

The invention discloses a chitin fiber reinforced polylactic acid three-dimensional porous support material and a preparation method, belonging to the technical field of biomedical materials. The support material is composed of polymer material polylactic acid (PLA) with excellent biocompatibility and high-strength fiber CF (chitin fiber) woven from natural polysaccharide chitin. The preparation process mainly comprises a method combining physical mixing and ultrasonic dispersion technologies. In order that the CF has better reinforcing effect, CF and PLA can be cross-linked by adopting a protein cross-linking reagent N,N'-dicyclohexyl carbimide (DCC). The material is a novel support material used for bone repairing, has a three-dimensional porous structure as well as good biocompatibility and mechanical properties, and is expected to serve as a repairing material for bone tissue defects to be widely applied clinically.

The invention relates to a manufacturing method of agricultural cold-proof cloth. The agricultural cold-proof cloth is composed of at least two layers of non-woven cloth, wherein each layer of non-woven cloth is manufactured by mixing PP matrix resin, polyvinylidene fluoride, an MAH-g-PP compatilizer, pigment master batch and an anti-aging additive, and the agricultural cold-proof cloth is manufactured through feeding, high-temperature melting, filtering, metering by a metering pump, spinning, cooling, up-down stretching, web curtain conveying and hot rolling. The non-woven fabric of different layers are formed through sequential drawing and polymerizing of different lower stretchers in a conveying direction of a web curtain, and the drawing arrangement directions of the non-woven fabric of different layers are intersected on a doffing plane of the web curtain; finally, the obtained non-woven fabric of different layers are laminated and adhered together to form the degradable agricultural cold-proof cloth, and the degradable agricultural cold-proof cloth has the characteristics of the non-woven fabric, can well protect crops and fruit trees, and is beneficial to the growth of the crops and the fruit trees; and the product is tear-resistant and uniform in thickness, the usability of the product is improved, and the service life of the product is prolonged. The preparation process is simple, reduced in production cost and is suitable for industrial mass production.

The invention discloses flower soil and a method for preparing the flower soil. The flower soil is composed of the following components including volcanic rock, medical stone, green zeolite, pine scales, vermiculite and rice hull ash. The parts by weight of the volcanic rock is 20-40, the parts by weight of the medical stone is 10-30, the parts by weight of the green zeolite is 10-30, the parts byweight of the pine scales is 8-22, the parts by weight of the vermiculite is 5-15, and the parts by weight of the rice hull ash is 2-8. The medical stone in the components has the function of bidirectionally adjusting the pH, the volcanic rock increases the air permeability of soil and prevents roots of succulent plants from rotting, the green zeolite can prevent the roots of the plants from rotting, the vermiculite can enable crops to obtain sufficient moisture and mineral substances from the early growth stage, the rice hull ash can adjust the pH value of the soil, growth of the succulent plants is facilitated, and the pine scales can improve the air permeability of the nutrient soil and prevent hardening, so that the effects of air permeability, no hardening, good water permeability and good bulkiness of the soil can be achieved, and all the media meet the requirements of all growth links from succulent rooting to rooting to budding.

The invention discloses a beverage containing walnuts and bovine bone peptide. The beverage comprises, by mass percentage, 85-89% of purified water, 1-2% of strawberry concentrated juice, 1-2% of apple concentrated juice, 1-2% of concentrated carrot juice, 3-7% of glucose, 2-6% of bovine bone collagen peptide powder, 0.8-1.2% of strawberry powder, 0.2-0.6% of probiotics, 1.4-1.8% of walnut peptidepowder, 1.2-1.6% of konjac powder, 0.3-0.7% of citric acid, 0.2-0.6% of potassium sorbate and 0.2-0.6% of DL-malic acid. After the purified water, the strawberry concentrated juice, the apple concentrated juice, the concentrated carrot juice, the glucose, the bovine bone collagen peptide powder, the strawberry powder, the probiotics, the walnut peptide powder, the konjac powder, the citric acid,the potassium sorbate and the DL-malic acid are mixed in a reasonable proportion, the beverage containing the walnuts and the bovine bone peptide is prepared. The bovine bone collagen peptide powder can provide collagen required by the bodies of children, and the walnut peptide powder is beneficial to the development of the brains of children, so that the body development of children is facilitated and healthy and happy growth of children is assisted when children drink the beverage in the growth process.

The invention discloses a plain No. 2 native chickens breeding method. The method comprises the following steps of (1) site selection and cultivation density; (2) feeding management: feeding the chickens with a feed containing Chinese herbs and plant polysaccharides; (3) diseases control: regularly checking the flock, finding the sick chickens in time and isolating the sick chickens, and regularlyfeeding insecticides; (4) environmental management: transferring the chickens to another breeding area after putting the chickens in a breeding area for 20-30 days: spraying EM bacteria and wood chips to the original breeding area, fermenting the EM bacteria and wood chips, and breeding earthworms in the original breeding area after transferring the chickens to another breeding area; regularly spraying disinfectant; and the spraying amount of the EM bacteria is 0.01-0.1g / m2, and the spraying amount of the wood chips is 0.5 to 1 Kg / m2. The plain No. 2 native chickens breeding method reduces the prevalence of the chickens, and has the advantages of good chicken growth, low feed consumption, low cost and good economic benefits.

The invention discloses a cultivation medium for plants. The cultivation medium is mainly prepared from the following components in parts by weight: 300 to 800 parts of paper, 60 to 140 parts of soil and 20 to 80 parts of vermiculite. Compared with the prior art, the cultivation medium disclosed by the invention has the following beneficial effects that firstly, the medium is enabled to keep uniform water content for a long time and not to easily accumulate water, and the growth of the plants is facilitated; secondly, by reasonably matching the soil, the paper and the vermiculite, the rooting of the plants is better benefited; thirdly, the effects of convenient in manufacturing, low cost, recycled resources, energy saving and environment friendliness are realized.

Corn fertilizer is characterized by being prepared from components in parts by weight as follows: 40-45 parts of urea, 10-20 parts of plant ash, 5-10 parts of vegetable waste, 15-25 parts of humic acid, 15-25 parts of ammonium dihydrogen phosphate, 8-12 parts of potassium hydroxide, 8-12 parts of magnesium sulfate, 5-10 parts of calcium sulfate, 7-10 parts of distillers' grains, 4-6 parts of zincsulfate, 3-5 parts of a sodium alginate solution, 0.5-0.8 parts of a biological agent and 4-6 parts of a urease inhibitor. The fertilizer contains relatively comprehensive nutrients, contributes to growth of seedling roots, can improve glutinousness of cellular plasm, heat resistance and water retaining capacity and has a promoting effect on growth, development and various physiological processesof crops; a preparation method of the fertilizer is simple and practical, and economic benefit is remarkable. With application of the fertilizer, the condition of disordered soil PH can be prevented,the biological agent is added to feed, so that beneficial bacteria in soil can be increased, and soil fertility is further enhanced.

The invention relates to a composting method for the sewage and the solid waste on a large-scale breeding farm, and discloses a groove-type composting method for the non-stink-discharging breeding sewage and the solid waste. The breeding sewage of the breeding farm is collected into an enclosed sewage pool through a concealed pipe; the solid waste is collected into a composting pool positioned under a horizontal plane in a composting workshop on one outer side of the breeding farm; the sewage pool is arranged below an inclined collecting channel; the groove-type composting method comprises the following steps: drawing the breeding sewage into the composting pool through the collecting channel by a pump; adjusting the proportion of the solid waste, the breeding sewage and auxiliary materials in a composting system to carry out aerobic composting; raking the breeding sewage and the solid waste in a composting groove; meanwhile, aerating the composting groove through an aerating opening formed in the bottom of the composting groove; discharging the collected waste gas generated in the composting groove into the soil loaded with plants, which can be used as deodorant or fodder, outside the workshop. The groove-type composting method further eliminates stink discharge amount, increases oxygen discharge amount, and beautified environment.

The invention relates to the field of mushroom cultivation, in particular to a process for cultivating mushrooms in a low temperature environment and a cultivation device thereof. The device comprises a main air supply pipe, a main air pump, a heating furnace, a temperature adjusting device, a first temperature monitoring device, a second temperature monitoring device, a primary branch pipe, a mushroom bed heat supply unit and a constant temperature mushroom bed. The main air pump, the heating furnace, the first temperature monitoring device, the temperature adjusting device and the second temperature monitoring device are sequentially arranged on an outdoor part of an air inlet section. The constant temperature mushroom bed sequentially comprises a planting layer, a heat transfer layer and a heat storage layer from top to bottom. A method for using the device for cultivating the mushrooms in the low temperature environment comprises (1) mushroom bed processing, (2) strain and hyphe cultivation and (3) temperature regulation and mushroom production. An electric heating device and a temperature regulating air pump are matched with the heating furnace to be used, so that the temperature of a mushroom house is controlled; values are accurate, and some mushrooms suitable for being cultivated at a high temperature can be cultivated in cold north.

The invention discloses a biological absorbable foamed magnesium adhesive-matrix type targeted drug slow-release carrier and a preparation method. The carrier comprises a barrel body and a barrel cover, wherein one end of the barrel body is opened and the barrel cover is matched with the opened part; the barrel body is in threaded connection with the barrel cover; the barrel body and the barrel cover are prepared of foamed magnesium materials; communication micropores with pore diameters of 100-500 microns are uniformly distributed in the foamed magnesium materials and are used for slowly releasing drugs. After being filled with drugs, the carrier is implanted into pathological bone tissues, so as to realize the fixed-point controlled release and biodegradable absorption of the drugs and facilitate the ingrowth of new bone tissues. The mechanical properties of the foamed magnesium are similar to the mechanical properties of the natural bones, so that the foamed magnesium can be used at the bearing parts of human body. According to the preparation method, the foamed magnesium is prepared from polystyrene microspheres and magnesium powder by adopting a powder metallurgy method, the foamed magnesium is processed into a barrel with the barrel cover by adopting a machining method so as to form a capsule-shaped drug carrier, and MgF2 chemical conversion coatings with thicknesses of 1-2 microns are generated on the inner and outer surfaces of the carrier; the method is simple, convenient, feasible and high in reliability.

The invention relates to the field of soil improvement, in particular to a soil improvement method for garden planting. The soil improvement method comprises: step 01), inserting a plurality of infiltration irrigation pipes into hardened soil, wherein the insertion end of each infiltration irrigation pipe is closed, and the pipe wall of each infiltration irrigation pipe is provided with a plurality of infiltration and irrigation holes in a penetrating manner; step 02), injecting a premix containing an iron powder and water into the hardened soil through the infiltration irrigation pipes; step03), performing natural drying for 24 h or more, and then injecting a hydrochloric acid solution through the infiltration irrigation pipes; step 04), injecting a liquid organic fertilizer through theinfiltration irrigation pipes; and step 05), injecting a weak alkaline solution through the infiltration irrigation pipes. The soil improvement method has the effect of not requiring the manual rakingor scarifying of the hardened soil, and thereby saving a lot of physical energy and greatly reducing labor intensity.

The invention discloses a method for interplanting rhizoma polygonati and astragalus sinicus in semen armeniacae amarae, and belongs to the technical field of planting of traditional Chinese medicinalmaterial. The method comprises the following steps: S1: trimming ridges: performing ridge trimming on the plantation in a manner of interval of large ridges and small ridges; S2: planting: sowing ripe semen armeniacae amarae to the large ridges in the last ten days of March; meanwhile, digging the underground rhizomes of rhizoma polygonati in the last ten days of March, and planting to the smallridges; scattering astragalus sinicus seeds at the interspaces of semen armeniacae amarae and rhizoma polygonati, and watering once every 3-5 days in the plantation, so that the soil is kept wet; S3:field management: reducing the leaf surface temperature of semen armeniacae amarae and rhizoma polygonati by adopting a leaf spraying method, turning over astragalus sinicus and the seeds of astragalus sinicus in the soil; S4: disease and pest management. According to the invention, semen armeniacae amarae, hizoma polygonati and astragalus sinicus are interplanted, so as to adjust the soil PH, andimprove the soil quality; meanwhile, the traditional Chinese medicinal materials are layered as being high and short, and form a line in an interspaced manner, and thus being favorable for improvingthe ventilating and light transmitting conditions, increasing the light energy utilization rate and playing a role of increasing yield.

The invention discloses a multifunctional clay-base sand stabilizing material integrating a water saving function, a temperature regulation function and a sand stabilizing function, and belongs to the field of sand control and sand stabilization. The sand stabilizing material adopts clay, biomass waste, animal bones, animal excrement, perlite, lactic acid, potassium hydroxide, phosphoric acid, natural emulsifier and cellulose as raw materials and is prepared in a given process. When in use, the clay-base sand stabilizing material is directly sprayed onto the surface of desert by utilizing a spraying device, and the crust thickness is controlled at 5mm to 10mm. The experiment shows that the product integrates the temperature regulation function, the water saving function and the sand stabilizing function; moreover, raw materials are natural products, so that the cost is low, the preparation process is simple, secondary environmental pollution is avoided, and the clay-base sand stabilizing material plays a positive role in restoring and rebuilding vegetation of a desert area.

The invention relates to the technical field of biomedical tissue engineering, and discloses a method for preparing a hydrogel composite biological patch for repairing abdominal wall defects. In the preparation method, pig dermis de-extracellular matrix powder and gelatin are used as biomaterials, and a composite hydrogel biopatch is prepared by mold casting and enzymatic cross-linking forming techniques. The present invention mixes the biomaterial porcine dermis de-extracellular matrix powder with gelatin to prepare the patch, not only the hydrogel patch exhibits excellent biocompatibility, but also enhances the biomechanical properties of the hydrogel patch, solving the problem There are deficiencies with single material patches. At the same time, the preparation process is simple and the required materials are easy to obtain. The composite biological patch scaffold prepared by the present invention contains pre-vascularized channels, which is helpful for the exchange of oxygen and nutrients and the discharge of metabolic waste, and accelerates the vascularization of tissues; in addition, the through-channel structure helps cells and tissues in the scaffold The ingrowth can accelerate the reconstruction of abdominal wall tissue, help to solve the existing technical bottleneck of biological mesh, and effectively improve the therapeutic effect of abdominal wall defect repair.

The invention discloses a preparation method of a zinc-efficient special corn fertilizer applicable to calcareous soil. The preparation method comprises the following steps: respectively weighing and drying urea, ammonium sulfate, monoammonium phosphate, potassium sulfate, sulfur, zinc oxide powder and bio-based polyurethane for later use; uniformly mixing urea, ammonium sulfate, monoammonium phosphate and potassium sulfate, and carrying out granulating to obtain a fertilizer master batch; and putting the fertilizer master batch into a rotary drum, uniformly spraying sulfur, zinc oxide powder and bio-based polyurethane on the surface of the fertilizer master batch, and then putting the formed mixture into a drying oven for treatment until the mixture is completely dried so as to obtain the zinc-efficient special corn fertilizer. According to the invention, sulfur has an alkali adjusting function, can slowly acidify soil, can form zinc sulfate with zinc oxide to continuously provide sulfur and zinc nutrition for crops, and is a good material for sterilization; and the bio-based polyurethane can play a role in degradation and slow release, and can be continuously degraded along with increase in the burying time of the fertilizer in soil, so fertilizer nutrients coated by the bio-based polyurethane is released.

The invention discloses an expansion fixed combined implant which comprises a bottom column and a top cover. The bottom column comprises a first foundation pile and a second foundation pile, the firstfoundation pile is provided with a first mounting plane, the first mounting plane is provided with a protruded slider, the second foundation pile is provided with a second mounting plane, a sunken slide groove is formed in the second mounting plane, the first foundation pile is slidably connected with the slide groove of the second foundation pile by the slider, the slide groove is provided witha groove bottom wall which is parallel to the second mounting plane, first expansion clearance is reserved between the groove bottom wall and the slider, second expansion clearance is reserved betweenthe first mounting plane and the second mounting plane, and a tenon which can be embedded in the first expansion clearance and the second expansion clearance is arranged on the bottom surface of thetop cover. The expansion fixed combined implant has the advantages that building block type construction and assembly are combined with utilization of mortise and tenon structures, the foundation piles of the expansion fixed combined implant are high in integrity, and accordingly the stability of the expansion fixed combined implant can be guaranteed.

The present invention relates to the field of soil improvement, in particular to a soil improvement method for garden planting, which includes step 01), inserting several seepage irrigation pipes into the compacted soil, the insertion ends of the seepage irrigation pipes are closed, and the seepage irrigation pipes There are several seepage irrigation holes through the pipe wall; step 02), inject the premix containing iron powder and water into the compacted soil through the seepage irrigation pipe; step 03), dry naturally for 24 hours or more, and then Inject hydrochloric acid solution through the irrigation pipe; step 04), inject liquid organic fertilizer through the irrigation pipe; step 05), inject weak alkaline solution through the irrigation pipe. The invention has the effects of saving a lot of physical strength and greatly reducing labor intensity without manually raking or plowing up compacted soil.

The present invention discloses a feather protein peptide feed additive and an application thereof. The preparation method for the feather protein peptide feed additive comprises: 1, mixing a substrate and water to obtain a solid state fermentation culture medium A, inoculating saccharomyces cerevisiae and saccharomycopsis fibuligera in the solid state fermentation culture medium A, culturing for 28-30 hours at a temperature of 30 DEG C, and drying the resulting culture at a temperature of 35-45 DEG C after culturing to obtain a yeast culture; and 2, mixing avian feather powder and the yeast culture, adding water to the resulting mixed material, uniformly stirring to obtain a solid state fermentation culture medium B, respectively inoculating bnfillus licheniformis and bacillus subtilis in the solid state fermentation culture medium B, and carrying out fermentation culture for 30-45 hours at a temperature of 35-38 DEG C to obtain the feather protein peptide feed additive. The feather protein peptide feed additive of the present invention has the following advantages that: feather protein digestion absorption efficiency can be 90%; the additive contains a variety of bioactive peptides, and provides digestion and growth promotion effects; the additive has natural fermentation flavor and good palatability; and pica of livestock and poultry can be significantly improved.