52results about How to "Produce destructive effect" patented technology

The invention discloses an adsorption method for preparing hydroxyapatite pesticide and slow-release fertilizer compound, which comprises the following steps: soaking a nano hydroxyapatite carrier in phosphate buffer solution, then adding a starting material into the buffer solution and continuously stirring the mixture to form compound solution, finally centrifuging the compound solution to obtain sediment, and drying the sediment to obtain the compound. By using a porous structure of the nano hydroxyapatite self to embed medicaments into an internal grid of the carrier, the burst effect of the medicaments is avoided, the medicinal effect is long, the medicament residue is greatly reduced, and the medicaments are safer. A product obtained by using the nano hydroxyapatite as a pesticide and fertilizer carrier has the advantages of reliable quality, strong stability, safe use and low cost, greatly improves the medicament loading amount and adsorption amount, is easy for continuous production, and has good application prospect.

The invention discloses a conveying device of a covered stent. The conveying device of the covered stent comprises a guiding head which is provided with a hollow cavity in the axial direction, a guiding wire pipe which is communicated with the hollow cavity, a protective sleeve, an external pipe and a fixing device, wherein one end of the guiding wire pipe is fixedly connected with the rear end of the guiding head; the protective sleeve is sleeved outside the external wall of the guiding wire pipe and is capable of moving along the axial direction of the guiding wire pipe; one end of the protective sleeve is connected with the rear end of the guiding head; the external pipe is sleeved outside the external wall of the guiding wire pipe and is capable of sliding along the axial direction of the guiding wire pipe; the external pipe is sleeved outside at least partial of the external wall of the protective sleeve; and the fixing device is sleeved outside the external wall of the guiding wire pipe and is capable of moving along the axial direction of the guiding wire pipe. The conveying device of the covered stent is characterized in that a groove is formed on the external wall of the fixing device; a portion of the groove, which corresponds to the covered stent, is inserted into the fixing device and the front end of the insertion portion and the rear end of the insertion portion abut against the wall of the groove; space for accommodating the inserted potion is formed between the protective sleeve and the guiding wire pipe; and a position on the fixing device, which is provided with the groove, is arranged in the protective sleeve. The conveying device of the covered stent is applicable to conveying the covered stent into a body and performing releasing during an operation.

The invention relates to a producing process of wall and floor tile crack glaze. The producing process comprises the following producing steps of: a. firstly, carrying out ball milling on blank raw material, inspecting slurry, delivering the qualified slurry to a spray tower to be granulated and formed, and then forming blanks by biscuit firing; b. applying enamel to the qualified blank by selecting the blank, carrying out ball milling on the glaze, and detecting the glaze slurry; c. applying glaze, applying the glaze slurry in step b after completing production and detecting to be qualified on the enamel, wherein the glaze applying process adopts process parameters of low specific gravity and low adhesive to apply the glaze, and a glaze layer with small density is formed on the surface of the blank, thereby promoting the product to easily form naturally cracked cracks under the function of pull stress during firing; d. delivering into a glaze firing roller kiln to carry out secondary firing, detecting properties, finishing and chamfering. The tile obtained by the method can not only present the characteristics of depth, width and randomicity of the natural crack textures, but also has strong concave-convex hand feeling and uniform interior and exterior.

The invention relates to a method for the enzymatic preparation of 1,3-dioleoyl 2-palmitoyl triglyceride in a subcritical system, which comprises the following steps: (1) raw materials preparation: selecting lard oil with a cholesterol content of less than 0.05% as a raw material A, or selecting recombinant palm oil with a sn-2 palmitic acid mass content of not less than 60% as a raw material A; and selecting at least one of an oleic acid and oleate as a raw material B; and (2) subcritical enzyme-catalyzed ester exchange reaction: in a subcritical system, under the catalysis of lipase, enabling the raw materials A and B to have a selective enzyme-catalyzed ester exchange reaction in a reaction solvent, so that 1,3-dioleoyl 2-palmitoyl triglyceride is obtained. The method has the characteristics of rapid reaction rate, high selectivity, less dosage application, no solvent residue, and easiness for large-scale continuous production.

The invention discloses a sterilizing and enzyme-denaturing method of citrus fruit juice, which comprises the following specific steps: packaging fruit juice after being prepared, homogenized in a high-pressure way and deaerated in vacuum, and preheating the fruit juice to 20-60 DEG C; placing the fruit juice into a high-pressure container, pressurizing the fruit juice to 200-600MPa under the temperature of 20-60 DEG C, and keeping the pressure for 10-20min; releasing the pressure, taking a fruit juice sample, and drying water on the surface of the package. The method can kill most of microzyme and mildew and one part of putrefactive bacteria in the fruit juice, passivates the pectinesterase, keeps the original flavor and color and the nutrient active ingredient in the fruit juice, is suitable for heat sensitivity products of the citrus fruit juice, and the like, and has low energy consumption and no pollution.

The invention discloses a method for manufacturing a solid electrolytic capacitor suitable for the high nominal voltage higher than 75V. The method includes the following steps that an amorphous dielectric oxide film is formed on the surface of an anode body; a surface precoated layer is formed; a first layer conducting polymer film is acquired by soaking the anode body into low-viscosity conducting polymer dispersion liquid under a negative pressure-positive pressure environment; a middle bonding layer is prepared; a second layer conducting polymer film is prepared; the dry anode body is soaked into graphite and silver paste, and then spot welding, bonding and die pressing packaging are conducted. The method has the advantages that production efficiency of the capacitor is improved, and stability and reliability of the electrolytic capacitor are improved; the anode body is soaked into three kinds of dispersion liquid of different viscosities, and therefore electrostatic capacity of the capacitor is increased, ESR and the leakage current are reduced, and the puncture voltage of the capacitor is increased.

The invention relates to a centrifugal force drive based drawing device for equipment in a pipeline, which comprises a bracket, a centrifugal force generating mechanism and a motion locking mechanism, wherein the bracket is sleeved in a pipeline; the centrifugal force generating mechanism comprises a drive motor and more than one set of eccentric block rotating assembly; the motion locking mechanism comprises an adjusting motor and more than four groups of connecting rod assemblies which are fixed on a stand along the circumferential direction of the pipeline; both ends of each screw rod in the connecting rod assemblies are respectively sleeved on a fixed rocker seat and a screw rod fixed seat; a floating rocker seat is sleeved on the screw rod by thread fit; one end of a fixed rocker is articulated on the fixed rocker seat, and the other end of the fixed rocker is connected with one end of a floating rocker by a connecting rod; the other end of the floating rocker is articulated on the floating rocker seat; a wedge block is fixed on the connecting rod; when the screw rods in all the connecting rod assemblies rotate towards the same direction, the motion directions of the floating rocker seats in the adjacent connecting rod assemblies are opposite. The invention has the advantages of simple and compact structure, low cost, stable and reliable work, wide application range, and the like.

The invention discloses a carbon dioxide based non-fluorine refrigerant, which is characterized in that THE carbon dioxide with mass percentage between 5 and 20 percent is mixed with one or more components as the propane, butane and cyclobutane, so as to produce environmental protection and green refrigerant. The invention has the advantages of no toxicity, no pollutions, no corrosions or less combustibleness.

The invention discloses a terahertz conveyor belt detection system. The terahertz conveyor belt detection system includes a conveyor belt, a terahertz light source, a terahertz camera and image processing software; the terahertz light source and the terahertz camera are arranged in the detection area of the conveyor belt; a terahertz light beam emitted by the terahertz light source passes through the detection area and is projected onto the terahertz camera; the terahertz camera converts the received terahertz light beam into digital signals and transmits the digital signals to the image processing software; and the image processing software can generate a display image based on the digital signals. According to the detection system, a terahertz light beam imaging mode is adopted, belongs to low-intensity electromagnetic radiation harmless to human bodies, is free of ionizing radiation and will not damage materials, and the terahertz light beam imaging mode is safer and more practical compared with an X-ray imaging mode in the prior art, and therefore, a user and an operator are not required to wear protective measures, and the system is easy to install and is convenient to use.

The invention belongs to the technical field of drugs and particularly relates to external ointment for treating gout. The external ointment is characterized by being prepared from the following raw materials in parts by weight: 10-20 parts of radix aconiti kusenzoffii, 10-20 parts of frankincense, 7-9 parts of pseudo-ginseng, 7-9 parts of flos carthami, 8-12 parts of dysosma versipellis, 8-12 parts of Chinese yams, 1-3 parts of cordyceps sinensis, 1-3 parts of dragon's blood, 1-3 parts of loofah sponges, 3-5 parts of earthworms, and 1-3 parts of Chinese angelica. The external ointment has the effects of regulating functions of livers and kidneys, balancing acid and alkali component proportion in body, promoting a metabolic function, strengthening the body immunity, relaxing the muscles and stimulating the blood circulation, dispersing blood stasis and stopping bleeding, is obvious in effect of treating gout with symptoms of muscular soreness, arthrocele, severe pains and the like, and has the characteristics of being short in course of treatment, quick in effect-taking, low in cost, free of toxic or side effect, unlikely to relapse after a heal, and the like.

The invention discloses a silicon-containing oil-coated slow-released compound rice fertilizer. The rice fertilizer is prepared from, by weight, 20-22 parts of waste oil, 0.05-0.06 part of iodine, 10-11 parts of talc, 100-110 parts of fish scales, 80-85 parts of urea, 9-10 parts of oyster shells, 12-13 parts of bran, 8-9 parts of weathered coal, 7-8 parts of peat soil, 13-14 parts of earthworm powder, 1-1.1 parts of ferrous fumarate, 1-2 parts of chitosan, 1.2-1.3 parts of sodium silicate, 800-820 parts of 0.4 mol / L sodium hydroxide solution, 5-6 parts of glutaraldehyde, an appropriate amount of strong ammonia water, 0.4-0.5 part of microbial powder and 18-20 parts of bentonite. According to the silicon-containing oil-coated slow-released compound rice fertilizer, the waste oil is modified and can be cured just at normal temperature when coating is conducted, the fish scales are soaked with the sodium hydroxide solution for degumming, and generated hydroxyapatite has a porous structure and can serve as a carrier to adsorb the urea in pore passages; in addition, the compound rice fertilizer is rich in silicon and good in fertilization effect.

Liquid insulated heat-conductive electromagnetic radiation-free liquid far-infrared fire-proof warming health bed mattress resolves electromagnetic radiation problem for human by utilizing electric heating wire and eliminating electromagnetic field through positive and negative charge; liquid insulated material conducts heat quantity of electric heating body, removes accumulated temperature of the electric heating body, prevents short circuit and fire hazard; different material of welding point is firmly connected to prevent oxidation of connection point; the prepared mucus body or crystal body far-infrared heat-conductive material converts the near-infrared ray produced by electric heating wire to far-infrared beneficial to human body; Fe powder entirely shields the remaining electromagnetic field produced by electric heating wire during electric energy conversion; a insulated layer is provided in lower part of bed mattress, thereby saving energy; a temperature control relay is provided in the circuit to make bed mattress automatically and constantly control temperature.

The invention discloses water-retention type grease-coated slow-release rice fertilizer. The fertilizer is prepared from the following raw materials in parts by weight: 20-22 parts of waste grease, 0.05-0.06 part of elementary substance iodine, 10-11 parts of talc, 100-110 parts of fish scale, 80-85 parts of urea, 20-22 parts of straw, 19-20 parts of rice chaff, 0.4-0.5 part of BSFA, 0.3-0.4 part of zinc methionine, 0.1-0.2 part of auxin, 5-6 parts of waste yeast solution, 2-3 parts of sodium alginate, 800-820 parts of 0.4mol / L sodium hydroxide solution, 5-6 parts of glutaric dialdehyde, a defined amount of stronger ammonia water, 0.4-0.5 part of microorganism bacteria powder and 18-20 parts of bentonite. According to the water-retention type grease-coated slow-release rice fertilizer, the waste grease is modified and can be solidified in a normal temperature when being coated, after the fish scale is soaked and degummed by sodium hydroxide, generated hydroxyapatite is of a porous structure, and the hydroxyapatite can serve as a carrier to absorb the urea in channels. In addition, the water-retention type grease-coated slow-release rice fertilizer can improve water retention of soil.

The invention discloses halogenated hydrocarbon insulating gas and application thereof. The halogenated hydrocarbon insulating gas comprises halogenated hydrocarbon gas and the balance auxiliary gas. A volume fraction of the halogenated hydrocarbon gas is 15%-75%. Metal caps are arranged on the outer surfaces of disc springs in isolating blades of isolating switches of ring main units with the halogenated hydrocarbon insulating gas. The halogenated hydrocarbon insulating gas and the application have the advantages that sulfur hexafluoride gas can be replaced by the halogenated hydrocarbon insulating gas, the insulating strength of the halogenated hydrocarbon insulating gas is equivalent to the insulating strength of sulfur hexafluoride or even is higher than the insulating strength of the sulfur hexafluoride gas, the halogenated hydrocarbon insulating gas has certain arc extinction capacity, GWP (global warming potential) of CF3I (iodotrifluoromethane) in the halogenated hydrocarbon insulating gas is lower than 5 and is nearly equivalent to the GWP of carbon dioxide, and the exist life cycle of the halogenated hydrocarbon insulating gas in atmosphere is 0.005 year.

The invention relates to a tire with a polyurethane elastomer material inside and a preparation method thereof. The preparation method comprises the following steps: uniformly applying a polyurethane primary coat on the inner surfaces of the tire and tire shoulder; and when the polyurethane primary coat surface is slightly sticky, uniformly applying a polyurethane elastomer layer on the surface. The polyurethane primary coat is composed of a component A and a component B. The component A comprises castor oil, butyl acetate, polymethylene polyphenyl isocyanate and trichloroethylene. The component B comprises polytetramethylene glycol and dimethylbenzene. The polyurethane elastomer is composed of a component C and a component D. The component C comprises polyether glycol, 4,4'-diphenylmethane diisocyanate and a plasticizer. The component D comprises polyether glycol, a plasticizer and a catalyst. The tire provided by the invention can be made by directly processing and upgrading the existing tire, has favorable self-recovery and air leakage resistance effects, and thus, has longer service life. The processing does not influence the original structure and properties of the tire, so the tire ensures the driving safety and life safety of people and has obvious social benefits and active social effects.

The invention discloses a high-utilization-rate grease coated slow release rice fertilizer. The fertilizer is prepared from, by weight, 20-22 parts of waste grease, 0.05-0.06 part of elemental iodine, 10-11 parts of talc, 100-110 parts of scales, 80-85 parts of urea, 19-20 parts of millet, 23-24 parts of castor seeds, 0.2-0.3 part of milk basic protein, 0.4-0.5 part of beta-carotene, 2-3 parts of salt, 1-1.2 parts of diammonium phosphate, 5-6 parts of attapulgite, 0.1-0.2 part of naphthylacetic acid, 0.1-0.2 part of heteroauxin, 800-820 parts of 0.4mol / L sodium hydroxide solution, 5-6 parts of glutaraldehyde, a proper amount of stronger ammonia water, 0.4-0.5 part of microorganism bacterium powder and 18-20 parts of bentonite. According to the fertilizer, the waste grease is modified, the waste grease can be cured at normal temperature when coated, hydroxyapatite generated after the scales are soaked with sodium hydroxide to be degummed has a porous structure and can adsorb urea into hole channels as a carrier, and in addition, the fertilizer is high in utilization rate.

The invention discloses a lipid coating slow release rice fertilizer capable of regulating soil acidity-alkalinity, which is prepared from the following raw materials in parts by weight: 20 to 22 parts of waste oil, 0.05 to 0.06 part of iodine, 10 to 11 parts of steatite, 100 to 110 parts of fish scales, 80 to 85 parts of urea, 20 to 22 parts of bean dregs, 17 to 18 parts of algae powder, 5 to 6 parts of medical stone, 0.3 to 0.4 part of monoammonium phosphate, 4 to 5 parts of zeolite powder, 1 to 1.1 part of tea saponin, 2 to 3 parts of humus, 1 to 1.1 parts of sodium carbonate, 1.2 to 1.3 parts of ammonium hydrogen carbonate, 0.9 to 1 part of potassium sulphate, 800 to 820 parts of 0.4mol / L sodium hydroxide solution, 5 to 6 parts of glutaraldehyde, a proper amount of stronger ammonia water, 0.4 to 0.5 part of microbe bacterial powder and 18 to 20 parts of bentonite. Waste lipid is modified so that during the film coating, curing can be realized only at normal temperature; hydroxylapatite generated after soaking degumming of fish scales in sodium hydroxide has porous structures, and can be used as a carrier for adsorbing urea into pore passages; in addition, the lipid coating slow release rice fertilizer can regulate the soil acidity-alkalinity.

The plasma lipid filter comprises a first shell and a second shell, and the first shell is provided with a blood inlet; the second shell and the first shell are connected to form a containing space, a blood outlet is formed in the bottom face, opposite to the first shell, of the second shell, and the bottom face is arranged in an inclined mode; a filter element and a screen plate are arranged in the containing space, and the screen plate is located below the filter element to support the filter element. According to the plasma lipid filter, adhesion of plasma to the bottom face of the filter is reduced, the plasma is filtered more easily, and the possibility that a filter membrane of the filter element is broken is reduced.

The invention discloses a method for preparing glycyrrhizic acid derivatives by carrying out a subcritical hydrolysis reaction and belongs to the technical field of biochemical engineering. Glycyrrhizic acid or liquorice extract is taken as a raw material, and glycyrrhetinic acid and glycyrrhetinic acid 3-O-glucuronide are prepared by carrying out the subcritical hydrolysis reaction. The method for preparing the glycyrrhizic acid derivatives by carrying out the subcritical hydrolysis reaction comprises the following steps: firstly dissolving raw materials to obtain a glycyrrhizic acid solution, then carrying out the subcritical hydrolysis reaction to prepare a reaction liquid, and centrifuging, separating, concentrating or redissolving and drying the reaction liquid, so that glycyrrhetinic acid 3-O-glucuronide and glycyrrhetinic acid are obtained. The method for preparing the glycyrrhizic acid derivatives by carrying out the subcritical hydrolysis reaction has the advantages that a preparation technology is scientific and reasonable, operation is simple and feasible, cost is low, continuous production can be realized, and the glycyrrhizic acid derivative products are easy to popularize and have a higher additional value; the amount of acid added in a preparation process is little, no destructive effect is produced to a structure of glycyrrhizic acid, product yield is high, and no pollution to the environment is produced; and the glycyrrhizic acid derivative products can be taken as a food additive and a medicine precursor substance and raw materials are provided for the food and pharmaceutical industries.

The externally applied gout treating ointment is prepared with sixangular dysosma rhizome, Chinese yam, windpipe trachea, tuckahoe and trichosanthes root in certain weight proportion. The preparation process of the externally applied gout treating ointment includes weighing the materials, grinding into fine powder and mixing while adding honey. The externally applied gout treating ointment is used for treating gout, carbuncle and boil, and has the advantages of convenient smearing, high swelling eliminating and toxin expelling effect and no damage to healthy body tissue.

The invention discloses an oil coated slow-release rice fertilizer capable of reducing the heavy metal content of rice. The oil coated slow-release rice fertilizer is prepared from the following raw materials in parts by weight: 20 to 22 parts of waste oil, 0.05 to 0.06 part of iodine, 10 to 11 parts of talc, 100 to 110 parts of fish scale, 80 to 85 parts of urea, 10 to 11 parts of straw, 8 to 9 parts of tea leaves, 8 to 9 parts of fructus aurantii, 10 to 11 parts of sawdust, 5 to 6 parts of chicken feather, 4 to 5 parts of streptomycin dregs, 4 to 5 parts of lotus root starch, 4 to 5 parts of actinolite powder, 800 to 820 parts of a sodium hydroxide solution with a concentration of 0.4 mol / L, 5 to 6 parts of glutaraldehyde, a proper amount of concentrated ammonia water, 0.4 to 0.5 part of microbial powder, 18 to 20 parts of bentonite and 7 to 8 parts of bamboo charcoal powder. According to the invention, through modification, the waste oil can be cured at room temperature during coating; meanwhile, the fish scale is degummed by being soaked in the sodium hydroxide solution, and the generated hydroxyapatite has a porous structure and can be used as a carrier to adsorb urea in a pore channel; In addition, the heavy metal content of the rice is reduced.

The invention discloses a grease-coated controlled-release rice fertilizer capable of improving saline-alkali soil is prepared from the following raw materials in parts by weight: waste grease 20-22 parts, iodine 0.05-0.06 part, talcum 10-11 parts, fish scale 100-110 parts, urea 80-85 parts, biogas residues 15-16 parts, peanut meal 12-13 parts, Chinese hawthorn seeds14-15 parts, washing water of rice 7-8 parts, ground phosphate rock 4-5 parts, maltooligosaccharide 2-3 parts, potassium permanganate 1-1.2 parts, ardealite 3-4 parts, 0.4 mol / L sodium hydroxide solution 800-820 parts, glutaraldehyde 5-6 parts, a proper amount of strong ammonia water, microbial powder 0.4-0.5 part and bentonite 18-20 parts. The waste grease is modified so that the waste grease can be solidified at normal temperature during coating, and after the fish scale is soaked with sodium hydroxide and is degummed, produced hydroxyapatite has a porous structure and can be used as a carrier to adsorb the urea in ducts. In addition, the grease-coated controlled-release rice fertilizer can improve the saline-alkali soil.

The invention discloses a grease coating slow-release rice fertilizer capable of improving yield. The grease coating slow-release rice fertilizer is prepared from the following raw materials in parts by weight, 20-22 parts of waste grease, 0.05-0.06 part of iodine, 10-11 parts of talcum, 100-110 parts of fish scale, 80-85 parts of urea, 10-12 parts of wheat seedlings, 9-11 parts of pork liver, 12-13 parts of furfural residue, 9-10 parts of bean cake, 4-5 parts of bauxite, 1-1.2 parts of calcium hydrogen phosphate, 2-3 parts of sucrose, 800-820 parts of 0.4mol / L sodium hydroxide solution, 5-6 parts of glutaraldehyde, right amount of stronger ammonia water, 0.4-0.5 part of microbial flora powder and 18-20 parts of kaolin. The waste grease is modified and can be solidified by only needing normal temperature when the grease is coated, the fish scale is soaked and degummed by sodium hydroxide to generate hydroxyapatite with a porous structure, the hydroxyapatite can serve as a carrier to adsorb urea into the porous channels, and the fertilizer can improve yield.

The invention discloses a carbon dioxide-based fluoric series freezing medium to replace all kinds of freon freezing media. The freezing medium of the invention is based on carbon dioxide and is mixed with one or more than one of R134a (1, 1, 1, 2-tetrafluoro thane), R152a (1, 1-difluoroethane), RC318 (octafluorocyclobutane), wherein, the mass percentage of carbon dioxide in the mixture is between 5 to 20 percent. The invention is characterized by innocuity, non-pollution, non-corrosion, no public nuisance and uninflammability.

The invention belongs to the field of preparation of gelatin and particularly relates to an enzymatic method for preparing bone gelatin. The enzymatic method comprises the following steps: preparing bone particles into degreased bone meal, adding water, stirring and pulping, acidifying with citric acid, adding hydrogen peroxide, decolorizing, washing with water, adding a biological combined enzyme, extracting glue, centrifuging, filtering, carrying out ion exchange, concentrating and drying. The enzymatic method has the advantages that (1) the bone particles are degreased with acetone so that the degreasing is more complete and the amino acid structure of the collagen can be retained; (2) the acidification is performed with citric acid so that the steps of pickling and liming are omitted, the discharge of wastewater and waste residues is significantly reduced, the production period is shortened and the cost is reduced; and (3) the biological combined enzyme can give fully play, the extraction of collagen is facilitated and the quality and yield of high-quality gelatin are significantly improved.

The invention discloses a graphite negative electrode material as well as a preparation method and application thereof, and the graphite negative electrode material is prepared by the following method: mixing crystalline flake graphite, a catalyst, a binder and a solvent to prepare mixed slurry, and performing spray drying on the obtained mixed slurry to obtain the graphite negative electrode material. And crushing and spheroidizing the obtained material with the binder and the catalyst mixed and coated on the surface of the crystalline flake graphite, graphitizing the obtained spherical natural graphite with the binder and the catalyst coated on the inner surface and the outer surface, and performing demagnetizing and screening to obtain the graphite negative electrode material. The prepared graphite negative electrode material comprises the spherical natural graphite, the inner surface and the outer surface of the graphite negative electrode material are uniformly coated with the artificial graphite layers, an electrolyte can be effectively prevented from being in contact with the natural graphite, the cycle performance of the material is improved, and the graphite negative electrode material has the advantages of high graphitization degree, high capacity, good cycle performance and the like and can be prepared into a working electrode for preparing a lithium ion battery; the cycle life of the lithium ion battery can be remarkably prolonged, and the lithium ion battery has very high use value and a very good application prospect.

The invention relates to a nanometer carrier fertilizer for preventing and controlling powdery mildew of woodbind and a preparation method thereof. The nanometer carrier fertilizer is prepared from the following raw materials in parts by weight: 1 to 15 parts of stellera chamaejasme, 5 to 10 parts of hops, 25 to 30 parts of wild pepper and 25 to 30 parts of ginkgo biloba sarcotesta. The nanometer carrier fertilizer can prevent and remove farmland weeds and has a broad-spectrum bactericidal feature. Compared with the prior art, the nanometer carrier fertilizer of such a dosage form has good weeding effect and is friendly to the environment; weeds hardly generate resistance to the nanometer carrier fertilizer; and the application prospect of the nanometer carrier fertilizer is broad.

The invention discloses an oil-coated slow-release rice fertilizer capable of preventing soil hardening. The fertilizer is prepared from the following raw materials in parts by weight: 20-22 parts of waste oil, 0.05-0.06 part of simple substance iodine, 10-11 parts of talcum, 100-110 parts of fish scale, 80-85 parts of urea, 20-22 parts of soybean hull, 11-12 parts of bone, 14-15 parts of sorghum bran, 4-5 parts of Spirulina, 0.2-0.3 part of epsilon-polylysine, 2-3 parts of gelatin, 10-11 parts of leaf mold, 9-11 parts of river sand, 800-820 parts of 0.4 mol / L sodium hydroxide solution, 5-6 parts of glutaric dialdehyde, a right amount of stronger ammonia water, 0.4-0.5 part of microbial powder and 18-20 parts of bentonite. The waste oil is modified, so that the modified waste oil can be cured at normal temperature in the coating process; the fish scales are immersed in sodium hydroxide for degumming to generate hydroxyapatite with a porous structure, and the hydroxyapatite can be used as a carrier to adsorb urea in the pores; and besides, the fertilizer can prevent soil hardening.