856 results about "Polyglutamic acid" patented technology

The invention provides a salt-alkali-tolerant endophytic bacillus subtilis strain and application thereof in improvement of saline-alkali soil, and belongs to the technical field of biological bacteria. According to the invention, a salt and alkali tolerant endophytic bacillus strain NXO3 is obtained from stems and leaves of suaeda salsa, and is identified as bacillus subtilis (bacillus subtilis); the strain has the capabilities of dissolving phosphorus, fixing nitrogen and generating indoleacetic acid (IAA) and polyglutamic acid, and has a remarkable inhibition effect on a plurality of plant pathogenic bacteria such as fusarium neosporum, colletotrichum gloeosporioides, fusarium graminearum, fusarium oxysporum and cavity microsporum. The agricultural microbial agent containing 0.3 billion / g of NXO3 is prepared through formula optimization. The bacillus subtilis NXO3 has a remarkable saline-alkaline tolerance function, a plant growth promoting effect and a biocontrol effect on plant diseases, and the emergence rate and the yield of crops in saline-alkaline land can be increased.

The invention provides a special charcoal-based slow-release fertilizer for sandy soil as well as a preparation method and application thereof, and belongs to the technical field of fertilizers. The special charcoal-based slow-release fertilizer for the sandy soil is prepared from amino modified biomass charcoal, urea, urea formaldehyde, monoammonium phosphate, potassium sulfate, polyglutamic acid, fulvic acid, clay, attapulgite, a compound microbial agent and sodium alginate. The compound microbial agent is prepared from halomonas (ACCC 11681), bacillus subtilis (ACCC 60429) and bacillus mucilaginosus (ACCC 10094), and the compound microbial agent is prepared from bacillus subtilis (ACCC 60429) and bacillus mucilaginosus (ACCC 10094). The invention further provides a preparation method and application of the special charcoal-based slow-release fertilizer for the sandy soil. The special charcoal-based slow-release fertilizer for the sandy soil can remarkably improve the water and fertilizer retention capacity of the sandy soil, improve the farmland productivity of the sandy soil, save fertilizer and water input and improve the yield and quality of crops.

The invention provides a gamma-polyglutamic acid electrostatic compound. The gamma-polyglutamic acid electrostatic compound is formed by compounding gamma-polyglutamic acid and an antibacterial surfactant with positive charges. Compared with the prior art, the gamma-polyglutamic acid electrostatic compound provided by the invention is constructed through electrostatic interaction, not only has good cell compatibility and blood compatibility, but also has excellent broad-spectrum antibacterial property, can be uniformly coated on the surfaces of medical instruments with different base materials, shapes and sizes, is stable in combination, and can be applied to medical instruments with different shapes and sizes. The coating process has universality and is suitable for solving the problem of pollution of current medical instruments, prolonging the service life of the medical instruments and solving the problem of coating stability of the surfaces of inner and outer cavities of complex instruments.

The invention discloses a preparation method of an intelligent response type soil conditioner based on a nano composite material, and belongs to the technical field of soil improvement. The modifier is prepared from 10 to 15 parts of modified chitosan, 15 to 25 parts of nano silicon dioxide, 20 to 30 parts of biochar-loaded polyglutamic acid, 8 to 15 parts of humic acid-sodium alginate microcapsules, 3 to 5 parts of trace element slow-release particles, 1 to 2 parts of a pH response type cross-linking agent and 15 to 25 parts of a functional agent. The soil conditioner researched and developed by the invention can flexibly adapt to complex and changeable soil environments, can sensitively sense dynamic changes of key environmental indexes such as soil humidity, pH value and temperature, automatically and accurately regulates and controls the release rate and the action effect of the soil conditioner, realizes multiple functions such as water retention, acid regulation, fertility increase and pollution resistance in a one-stop manner, and has a wide application prospect. High efficiency, long-term effect and ecological environment friendliness of soil improvement are comprehensively achieved, a new road is opened up for global soil improvement, and agricultural yield increase, ecological restoration and urban green development are assisted.

The invention discloses a microbial fertilizer and application thereof, and the microbial fertilizer is prepared from the following components: Penicillium janthinellum, Bacillus mojavensis, biochar, turfy soil, corn straw powder, bentonite and gamma-polyglutamic acid, and the microbial fertilizer is prepared from the following components: Penicillium janthinellum, Bacillus mojavensis, biochar, turfy soil, corn straw powder, bentonite and gamma-polyglutamic acid. The microbial fertilizer provided by the invention can effectively prevent and treat root rot of Amomum tsao-ko caused by fusarium oxysporum, and is beneficial to improving the yield of Amomum tsao-ko and prolonging the life of Amomum tsao-ko plants.

The present invention relates to a kind of silk fibroin hydrogel and preparation method thereof, silkworm raw silk is degummed, sol, dialyzed, filtered, freeze-dried to obtain silk fibroin freeze-dried powder, then redissolved into high concentration silk fibroin solution, filtered and spray-dried into silk fibroin microspheres; silk fibroin microspheres are slowly added to a phosphate buffered saline solution containing γ-polyglutamic acid and glutaraldehyde, stirred and ultrasonically carried out the first cross-linking, then a cross-linking agent solution is added, stirred evenly and ultrasonically, and the second cross-linking is carried out, and the silk fibroin hydrogel is obtained after being rinsed with pure water after being placed for a period of time. In the preparation method of the present invention, a phosphate buffered saline solution containing γ-polyglutamic acid and glutaraldehyde is used as a cross-linking agent and secondary cross-linking is carried out, and the prepared silk fibroin hydrogel silk fibroin has a long retention time, good stability and mechanical strength, and the cross-linking method is simple, and it is suitable for large-scale industrial production.

The invention relates to a preparation method of antibacterial gamma-polyglutamic acid superabsorbent hydrogel. The preparation method comprises the following steps: (1) preparing a gamma-polyglutamic acid solution; (2) dissolving an antibacterial agent in the gamma-polyglutamic acid solution, and fully stirring and uniformly mixing to obtain a mixed solution 1; adjusting the pH value of the mixed solution 1, heating the mixed solution 1 to 60 DEG C, and continuously reacting for 1-2 hours to obtain a mixed solution 2; cooling the mixed solution 2 to room temperature, adding a cross-linking agent, and uniformly mixing to obtain a mixed solution 3; standing the mixed solution 3 at room temperature for 1-3 hours and then carrying out gradient heating reaction to obtain an antibacterial gelatinous product; and (3) dehydrating the antibacterial gelatinous product, and carrying out vacuum negative pressure drying to obtain a dried hydrogel product, namely the antibacterial gamma-polyglutamic acid super absorbent hydrogel. The antibacterial gamma-polyglutamic acid superabsorbent hydrogel prepared by the invention has good biocompatibility, is safe and non-toxic, also has excellent water absorption performance and antibacterial performance, and has a good application prospect.

The invention belongs to the technical field of soil improvement, and relates to a soil conditioner for saline-alkali soil and a soil improvement method. The soil conditioner comprises vinegar residues, chitin, glucose, a composite biological preparation, a modified gel and a functional additive, the composite biological agent comprises bacillus subtilis powder, bacillus licheniformis powder, trichoderma spore powder, brown algae powder and light calcium carbonate; the functional auxiliary agent comprises modified bentonite, polyglutamic acid, pregelatinized starch and biochar potassium humate. Through the synergistic effect of multiple components and structural design optimization, systematic remediation of physical properties, chemical properties and biological activity of the saline-alkali soil is achieved. According to the technology, the limitation of single function of a traditional improvement measure is broken through, and the long-standing technical problems of return salt rebound, low fertility, microbial community imbalance and the like in saline-alkali soil treatment are effectively solved by constructing a multi-layer and multi-dimensional soil improvement system.

The invention relates to the technical field of fertilizers, in particular to an environment-friendly water-soluble fertilizer containing a seaweed extract and polyglutamic acid. The water-soluble fertilizer is prepared by preparing seaweed oligosaccharide and double-grafted poly-L-gamma-sodium glutamate and compounding and complexing the seaweed oligosaccharide and the double-grafted poly-L-gamma-sodium glutamate, has the characteristics of low salting-out, high stability, no precipitation, good slow release performance and the like, and can continuously release nutrients and keep a solution clear and transparent under a low-salt condition; and because the polyglutamic acid and seaweed extract compound drip irrigation agent has the chelation and water retention characteristics of the polyglutamic acid and the natural growth promoting effect of the seaweed extract, the crop rhizosphere nutrient absorption efficiency and stress resistance are remarkably improved, the compound drip irrigation agent is suitable for drip irrigation and water and fertilizer integrated application of greenhouse vegetables, fruit trees and field crops, and the comprehensive effects of high efficiency, low salt load and environment friendliness are achieved.

The invention discloses a preparation method of a biodegradable material based on gamma-polyglutamic acid, which comprises the following steps: (1) preparing a low-molecular-weight polyglutamic acid aqueous solution, adjusting the pH value to be acidic to obtain a carboxylic acid group protonated polyglutamic acid solution, then adding a metal ion solution into the polyglutamic acid solution, and uniformly stirring and mixing to obtain a mixed solution; and (2) adjusting the pH value of the mixed solution obtained in the step (1) to be alkaline while stirring, then adding a cross-linking agent into the mixed solution, and carrying out cross-linking curing to obtain the biodegradable material. The material disclosed by the invention has mechanical properties, tensile strength, toughness and the like can be improved, so that the material can better meet the requirements of different application scenes, the application range of the material is widened, and meanwhile, the material has relatively good degradation performance, adsorption performance, antibacterial performance and moisture retention performance, can be produced by utilizing renewable resources, is wide in raw material source and sustainable, and is suitable for industrial production. The dependence on non-renewable resources such as petroleum is reduced.

The invention relates to the technical field of high-performance fibers, in particular to a high-performance fiber containing carbon nanotubes and a preparation method of the high-performance fiber. The preparation method comprises the following steps: adding ammonium polyphosphate, alkylphenol polyoxyethylene ether and tetraethyl orthosilicate to obtain a silicon-coated ammonium polyphosphate material; then adding a silicon-coated ammonium polyphosphate material and gamma-aminopropyltriethoxysilane, so as to obtain a modified silicon-coated ammonium polyphosphate material; and mixing the modified silicon-coated ammonium polyphosphate material, tannic acid and a buffer solution to obtain the double-layer coated ammonium polyphosphate material. The fiber is obtained by adding a carbon nanotube material, a double-layer coated ammonium polyphosphate material, polytrimethylene terephthalate, a compatilizer and polypropylene and carrying out melt spinning. And then the fibers are sequentially soaked in an ethylenediamine solution, a polyglutamic acid solution and a chitosan solution, and the high-performance fibers are obtained. The obtained high-performance fiber has good flame retardance and antibacterial property, so that the high-performance fiber has a wide application prospect in the technical field of high-performance fibers.

The invention relates to the technical field of fertilization scheme analysis, and discloses a polyglutamic acid and compound fertilizer combined analysis method and equipment and a storage medium, and the method comprises the following steps: determining crops needing to be analyzed; determining a growth cycle and a critical period of the crops needing to be analyzed; determining environment conditions and nutrient absorption characteristics of crop growth, and selecting proper fertilizer types and fertilization modes; according to the selected fertilizer types and fertilization modes, combined fertilization schemes of different growth periods and different key periods are generated, and a plurality of combined fertilization schemes are generated in each growth period and key period; evaluating the advantages and disadvantages of the combined fertilization schemes, and determining the optimal combined fertilization scheme of each growth cycle and key period; and verifying the optimal combined fertilization scheme to obtain a verification analysis result. According to the invention, the optimal polyglutamic acid and compound fertilizer combined fertilization scheme can be automatically calculated according to the set target formula and crop requirements, and detailed formula proportion and cost estimation are given.

The invention relates to the technical field of textile material and fiber processing, in particular to a high-elasticity moisture-absorption breathable acetate fabric and a preparation method thereof. The invention discloses a high-elasticity moisture-absorption breathable acetate fabric and a preparation method thereof.The acetate fabric takes a bio-based degradable thermoplastic polyester elastomer as an island and acetate as a sea, a homothermal double-hole structure is embedded in the acetate fabric, and the surface of the acetate fabric is covered with a polyglutamic acid and chitosan oligosaccharide self-repairing hydrophilic layer; the preparation method comprises the following steps: pre-burying alkali-resistant microspheres in a marine facies through solid island-solution sea double-path spinning of a bio-based degradable thermoplastic polyester elastomer and acetate, synchronously forming groove-closed pore double channels through simultaneous heating one-step alkali etching-baking, and finally forming a dynamic reversible hydrogen bond network through polyglutamic acid and chitosan oligosaccharide, so as to obtain the marine-based degradable alkali-resistant hydrogel. A bio-based finishing layer with a self-repairing function is obtained, and the finally obtained fabric has the characteristics of high elasticity, breathability, lasting moisture absorption, greenness and degradability.

The invention relates to a natural antioxidant for prefabricated vegetables and a preparation method of the natural antioxidant, and belongs to the technical field of food additives. The antioxidant is prepared from rosmarinic acid, carnosic acid, drug-loaded cellulose and double-phase chelating microspheres; the drug-loaded cellulose is prepared by modifying cellulose with quercetin, loading anthocyanin and then wrapping with a trehalose-gamma-polyglutamic acid composite film; the biphase chelating microspheres are phytic acid-citric acid biphase sustained-release microspheres formed by wrapping phytic acid and citric acid with a chitosan and sodium alginate composite film. Through multi-component functional complementation, multi-stage slow release design and physical-chemical synergistic barrier, comprehensive inhibition of the oxidation problem of the prefabricated vegetable is realized, a'free radical scavenging-metal chelating-phase interface stabilization 'triple protection system is constructed, accurate oxidation resistance in different stages of processing, storage and transportation is realized, and the prepared vegetable has good market prospects. The bottlenecks of short action period and single protection dimension of a natural antioxidant are broken through.

The invention relates to the field of compound fertilizer analysis, and discloses an analysis method and device for combining polyglutamic acid and a compound fertilizer, computing equipment and a storage medium, and the method comprises the following steps: determining a growth cycle and a critical period of crops of which a fertilization scheme needs to be analyzed; determining environment conditions and nutrient absorption characteristics of crop growth; determining types of fertilizer raw materials and fertilization modes according to environmental conditions and nutrient absorption characteristics; combined fertilization schemes corresponding to different growth cycles are generated according to fertilizer raw material types and fertilization modes; inputting the plurality of combined fertilization schemes into a first fertilizer effect prediction model to obtain evaluation results of the plurality of combined fertilization schemes; and determining an optimal combined fertilization scheme according to the evaluation results of the plurality of combined fertilization schemes. According to the application, a polyglutamic acid and compound fertilizer combination scheme is designed according to crop requirements, and then a scheme with an optimal crop growth effect is selected according to the evaluation model, so that crops can obtain required nutrients, and the production cost is reduced.

The invention discloses a saline-alkali soil improvement and disease resistance double-effect controlled release fertilizer and a preparation method thereof. The fertilizer comprises 18-22% of biochar, 12-18% of furfural residues, 8-12% of cow dung compost and 6-10% of potassium humate. 5-7% of aluminum sulfate, 4-6% of sulfur and 3-5% of zeolite; the microbial inoculum comprises the following components in percentage by weight: 1.5 to 2.5 percent of saline-alkaline bacillus, 0.8 to 1.2 percent of bacillus subtilis and 0.8 to 1.2 percent 8-12% of a sodium polyacrylate coating, 4-6% of a sulfur coating and 1-3% of polyglutamic acid; 0.8 to 1.2 percent of humic acid chelated iron, 0.8 to 1.2 percent of algal polysaccharide and 0.8 to 1.2 percent of urease inhibitor; 0.8 to 1.2 percent of zinc sulfate, 0.5 to 1.0 percent of manganese sulfate and 0.5 to 1.0 percent of borax. The fertilizer can reduce the pH and conductivity of soil, increase the organic matter content of the soil and effectively improve the physicochemical properties of the soil, meanwhile, by adding the microbial agent, the disease resistance of crops can be effectively improved, the morbidity and disease index of the crops can be reduced, and nutrient release of the fertilizer has a sustained and controlled release characteristic; the initial release rate and the cumulative release rate of nitrogen are both lower than those of common chemical fertilizers, and the cumulative release rate of nitrogen is moderate within 60 days, so that the nutrient requirements of crops in different growth stages can be met.

The invention discloses bacillus subtilis subsp. Natto YJ01 and application of the bacillus subtilis subsp. Natto YJ01. The preservation number of the bacillus subtilis subsp. Natto YJ01 strain is GDMCC No: 64944, and the bacillus subtilis subsp. Natto YJ01 strain can be used for dissolving inorganic phosphorus and synthesizing various active substances such as indoleacetic acid, siderophore, protease, gamma-polyglutamic acid, exopolysaccharide and the like. The YJ01 can promote the germination of lavender seeds and the growth in the germination period, and promote the growth and development of corn and oil sunflower plants. Meanwhile, the YJ01 can tolerate a high saline-alkali environment and can improve the physical structure of saline-alkali soil, and key growth indexes such as biomass, leaf area and root development of the corn and the oil sunflower can be effectively improved by applying the YJ01 to the saline-alkali soil. Therefore, the application of the strain YJ01 not only provides a new method for crop growth promotion and saline-alkali soil improvement, but also has important significance for agricultural sustainable development.

The invention relates to a method for detecting activity of gamma-polyglutamic acid hydrolase and application. The method comprises the following steps: (1) preparing an enzymolysis reaction solution and a blank reaction solution; (2) preparing an NAC / OPA mixed solution; (3) adding an NAC / OPA mixed solution into the enzymatic hydrolysis reaction solution to obtain a reaction solution to be detected; (4) drawing a standard curve by taking L-glutamic acid as a standard substance; and (5) detecting the fluorescence intensity of the blank reaction solution and the reaction solution to be detected by using a microplate reader, and then calculating the activity of the gamma-polyglutamic acid hydrolase according to the fluorescence intensity and the standard curve. The method for detecting the activity of the gamma-polyglutamic acid hydrolase is high in detection speed, detection of a single sample can be completed within 25 min, and nearly real-time process monitoring is achieved. And the method has the advantages of reliable detection result and high accuracy, can be used for monitoring the enzyme activity of the gamma-polyglutamic acid hydrolase in the gamma-polyglutamic acid preparation process in real time and guiding the optimization of the fermentation process, and has extremely high industrial application value.

The invention relates to the field of microorganisms, and discloses a complex microbial inoculant for preventing and treating clubroot of rape. Comprising the following raw materials in parts by weight: 10 to 12 parts of acid-resistant bacillus, 12 to 15 parts of pseudomonas fluorescens PF-5, 8 to 10 parts of bacillus mucilaginosus, 5 to 7 parts of halophilic bacillus, 8 to 10 parts of bacillus amyloliquefaciens, 12 to 15 parts of trichoderma atroviride ReTv2, 6 to 8 parts of azotobacter chroococcum, 10 to 12 parts of chitosan-gamma-polyglutamic acid microspheres, 12 to 15 parts of diatomite and 8 to 12 parts of humic acid. And 2-4 parts of algal polysaccharides. The living space of plasmodiophora brassicae is preempted by the acid-resistant bacillus; the pseudomonas fluorescens PF-5 directly strikes pathogenic bacteria and stimulates the defense system of the oilseed rape; the bacillus amyloliquefaciens releases a plurality of antibacterial substances; the trichoderma atroviride ReTv2 rapidly destroys the structure of the plasmodiophora brassicae in a manner of hyperparasitism and exoenzyme secretion.

The invention relates to the technical field of agriculture, provides a red soil hardening reduction conditioner based on modified straw adsorption carbon as well as a preparation method and application thereof, and solves the problems that an existing red soil hardening conditioner is poor in soil improvement effect and does not have a slow release function. Comprising the following steps: (1) preparing oyster shell-biochar composite powder; (2) loading functional components; (3) directional immobilization of microorganisms; (4) coating a slow-release layer; (5) activating treatment; the red soil hardening reduction conditioner is prepared from the following raw materials in parts by weight: 80 to 100 parts of oyster shell powder, 100 to 200 parts of modified straw adsorption carbon, 10 to 30 parts of rice hull powder, 30 to 50 parts of nano dihydrate gypsum, 100 to 200 parts of a polyglutamic acid solution, 10 to 50 parts of acid-resistant bacillus, 15 to 30 parts of sodium alginate, 30 to 60 parts of humic acid, 10 to 30 parts of carbide slag and 30 to 60 parts of attapulgite.

The invention provides a liquid fertilizer for improving tomato fruit saccharic acid quality and application, and belongs to the technical field of fertilizers. The liquid fertilizer for improving the tomato fruit saccharic acid quality provided by the invention is prepared from the following components in percentage by weight: 42 to 47 percent of organic nutrient solution, 10 to 15 percent of water-soluble macroelement compound, 1.5 to 2.5 percent of natural organic acid, 3.5 to 4.5 percent of plant source amino acid compound, 3 to 5 percent of compound biostimulant, 0.02 to 0.07 percent of polyglutamic acid and 0.2 to 0.4 percent of sugar alcohol medium trace element compound liquid, and 28-33% of sterile water. Through optimized formula design, the organic liquid fertilizer is rich in plant nutrition and bioactive substances, can effectively improve the healthy growth state of tomatoes, and meanwhile, remarkably improves the fruit quality.

The invention relates to a composite microbial agent suitable for saline-alkali soil remediation of sorghum production in northeast alpine regions, and a preparation method and application thereof. The composite microbial agent comprises bacillus subtilis, bacillus mucilaginosus and pseudomonas fluorescens. Bacillus mucilaginosus capable of efficiently producing polyglutamic acid and potassium and pseudomonas fluorescens capable of secreting chitinase are separated and screened from obstacle soil in northeast alpine regions, and field trials are carried out in the obstacle soil (coastal saline-alkali soil) in the northeast alpine regions. The low-temperature slow-release fertilizer has the unique characteristics of secreting polyglutamic acid, potassium and chitinase under the low-temperature condition, is low in cost, and can effectively improve the physical and chemical properties of soil, increase the seed emergence rate, stimulate the root growth and enhance the salt resistance and alkali resistance of seedlings after being applied.

The invention relates to the technical field of soil remediation and fertilizer preparation, and discloses a soil remediation fertilizer and a preparation method thereof.The soil remediation fertilizer is formed by compounding a pre-fermented organic matrix and a function activation component, and the organic matrix comprises chicken manure, corn straw, fermented sesame cake powder and traditional Chinese medicine residue powder; a stable organic fertilizer matrix is obtained through high-temperature composting fermentation; the function activation component comprises freeze-dried saccharomyces cerevisiae embedded by chitosan-baking soda, a pineapple peel crude extract, polyglutamic acid, yeast cell walls, fulvic acid, trace mineral substances, microporous vermiculite and the like. After the fertilizer is applied into soil, the embedded flora and the slow-release carbon source are activated through soil moisture and an acid-base environment, the rhizosphere in-situ re-fermentation process is triggered, and the synergistic remediation function of continuous nutrient release, micro-ecological regulation and soil structure improvement is achieved. The product provided by the invention has the advantages of composite structure, synergistic function, controllable activation condition, good ecological adaptability and popularization value.

The invention discloses an anti-seepage, water-locking and fertilizer-retaining sandy land soil conditioner, and relates to the technical field of sandy land soil improvement, the anti-seepage, water-locking and fertilizer-retaining sandy land soil conditioner comprises the following raw materials by mass: 50-60% of decomposed cow dung; 15 to 20% of modified straw fiber; 12 to 15% of a sodium carboxymethyl cellulose solution with a concentration of 0.1%; 3 to 5% of bentonite; 1-2% of a microbial agent; 0-15% of a slow-release compound fertilizer; 0.5-1% of polyglutamic acid; and 0.5-1% of a stone-chitosan coating agent. The invention also discloses a preparation method of the anti-seepage, water-locking and fertilizer-retaining sand soil conditioner. The preparation method comprises the following steps: step 1, straw modification; step 2, cow dung decomposition; step 3, preparing a colloidal solution; step 4, mixing and granulating; step 5, coating treatment; and step 6, post-processing. By adopting agricultural wastes as main raw materials, resource utilization of the wastes is realized, and a biodegradable material is introduced to replace synthetic resin, so that the degradation period is shortened to 18-24 months.

The invention discloses a high-activity organic water-soluble fertilizer and a preparation method thereof, and relates to the technical field of agricultural fertilizer preparation, the high-activity organic water-soluble fertilizer comprises a liquid organic fertilizer, an organic crop raw material, a liquid zymophyte liquid, trace elements, a preservative, a solubilizer, a foam inhibitor and a stabilizer, the fertilizer comprises the following components in percentage by weight: 10%-19% of glycerol, 10%-25% of polyglutamic acid, 0.3%-0.8% of amino acid, 3%-4.5% of citric acid, 10%-15% of urea, 8%-12% of ammonium polyphosphate, 7%-14% of potassium sulfate, 0.3%-0.8% of sodium copper chlorophyllin, 0.3%-0.4% of ammonium molybdate and 40%-50% of water, wherein the water is deionized water; the organic fertilizer provided by the invention can effectively promote crop growth, has stress resistance and collapse resistance, and is mainly specially added with polyglutamic acid which can be used in a compound fertilizer, a water flush fertilizer, a water-soluble fertilizer and a liquid fertilizer, so that the utilization rate of the fertilizer is increased, the fruit quality is improved, the root development is promoted, the root development of crops can be promoted, and the yield of crops is increased. The nutrient absorption capability of the root system is improved.

The invention relates to the technical field of agricultural fertilizers, in particular to an organic-inorganic composite silicon-calcium-magnesium fertilizer and a preparation method and application of the organic-inorganic composite silicon-calcium-magnesium fertilizer. The high-temperature activated silicon-calcium-magnesium mineral powder is composed of calcined wollastonite powder, calcined serpentine powder, dolomite powder and zeolite powder; 2%-5% of an organosilane modifier, wherein the organosilane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane, and the organic silane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane; 18%-35% of a functional organic matter complex, wherein the functional organic matter complex is composed of mineral source sodium humate, bioactive small peptide, sodium alginate and polyglutamic acid; and 3%-8% of auxiliary functional components, so that the solubility and the bioavailability of silicon, calcium and magnesium elements in minerals are remarkably improved.

The invention provides an organic-inorganic composite conditioner for improving a soil structure. Comprising the following raw materials in parts by mass: 100-150 parts of calcium, 20-50 parts of magnesium, 10-20 parts of polyglutamic acid, 0.5-2 parts of zinc, 2-4 parts of boron, 2-4 parts of iron, 100-150 parts of organic nitrogen, 150-200 parts of composite organic natural polypeptide amino acid, 50-70 parts of seaweed boron molybdenum, 50-80 parts of phosphorus calcium zinc liquid, 20-50 parts of seaweed calcium magnesium boron iron zinc and 100-120 parts of a plant nutrition preparation. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of high phosphorus and high potassium, 150-200 parts of organic waste compost, 50-80 parts of a synergist and 50-100 parts of a functional microbial agent. Through a unique chelation technology, polyglutamic acid and calcium and magnesium ions are fully fused to form an efficient medium trace element water-soluble fertilizer, calcium and magnesium are directly absorbed by a root system after flushing application, the calcium utilization rate is improved by 50% or above, and due to the fact that polyglutamic acid carries strong negative charges, fertilizer loss caused by rainwater leaching is effectively reduced, and the yield of the fertilizer is improved. And the water-retaining and fertilizer-retaining functions are more obvious when the fertilizer is used in sandy loam.

The invention discloses an oral instant film suitable for pet nutrition intervention and a preparation method of the oral instant film, and belongs to the technical field of pet oral preparations. The instant film adopts a sandwich type multi-layer structural design, sequentially comprises a first food calling layer, a core layer and a second food calling layer, can be selectively provided with a functional layer and an interface middle layer, and constructs a staggered hot-pressing laminated structure, so that the structural stability and the function delivery efficiency of a film body are remarkably improved. The core layer contains multiple composite active ingredients such as L-carnitine, coenzyme Q10, beta-glucan, glucosamine sulfate and the like, chitosan-inulin-polyglutamic acid or starch is adopted for embedding to form a first microcapsule and a second microcapsule, and intelligent delivery of temperature / pH response and gastrointestinal controlled release is achieved. The food calling layer is composed of chicken powder, fish oil powder, fructo-oligosaccharide and the like, and the feeding compliance of pets is improved.

The invention relates to a cellulose-chitosan-based lithium ion battery diaphragm and a preparation method and application thereof.The preparation method of the diaphragm comprises the steps that gamma-polyglutamic acid and polyamide epichlorohydrin are adopted for modifying chitosan, the hydrophilicity and the liquid absorption capacity of the chitosan are improved, polyvinylpyrrolidone is adopted for coating the chitosan, and the hydrophilicity and the liquid absorption capacity of the chitosan are improved; pVP is replaced in ethanol soaking to form micropores, so that the porosity of the modified chitosan is improved. Amino groups and hydroxyl groups of the modified chitosan are combined with catechol of the polydopamine and hydroxyl groups of the hydroxy propyl cellulose through hydrogen bonds and covalent bonds to form a chitosan-cellulose-PDA interpenetrating network, and the diaphragm material suitable for the lithium ion battery is finally prepared by combining hot-pressing shaping. The preparation method has the advantages that the balance between the mechanical property and the ion conduction property of the diaphragm is realized through multi-component compounding by utilizing the biocompatibility and renewability of natural macromolecules (cellulose and chitosan).

The invention provides a slow-release fertilizer for saline-alkali soil and a preparation method thereof, and the slow-release fertilizer comprises a granular core which is formed by co-granulation of a basic fertilizer composition and charcoal powder; the first coating layer is formed on the surface of the granular core by a mixture consisting of gamma-polyglutamic acid or a derivative thereof and sodium alginate; the second coating layer is formed on the surface of the first coating layer by sulfur; and the third coating layer is formed on the surface of the second coating layer by an anti-blocking agent. The slow-release fertilizer for the saline-alkali soil is strong in functionality and good in slow-release effect, improves the granular structure of soil, improves the utilization rate of water and fertilizer, synergistically reduces the pH of the saline-alkali soil, increases the content of nutrients and organic matters in the soil, promotes the growth and development of plants, and improves the micro-ecology of the soil.