20results about How to "Improve physical structure" patented technology

The invention relates to the technical field of sustained and controlled release fertilizers, in particular to a soil-improving disease-resistant sustained and controlled release fertilizer and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of the nutrient core: weighing an organic fertilizer, an ammonium nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a biological regulator, chelated medium trace elements and modified attapulgite, uniformly mixing, and granulating to obtain the nutrient core; (2) covering an organic polymer coating layer: dissolving polylactic acid in a solvent to form a composite solution, spraying the composite solution on the surface of the nutrient core, and drying to obtain an organic polymer coated nutrient core; and (3) covering a mineral coating layer. The outermost layer of the soil-improving disease-resistant controlled-release fertilizer provided by the invention is the mineral coating layer, the mineral coating layer can be gradually disintegrated after being applied to soil, mineral components can improve the physical structure of the soil, regulate the acid-base property of the soil and increase the content of organic matters in the soil after entering the soil, and inorganic and organic nutrients are slowly released into the soil through the organic polymer coating layer; nutrient substances are continuously supplied, and common diseases of the corn are prevented and controlled.

The invention relates to the technical field of agriculture, and discloses an organic-inorganic compound fertilizer containing humic acid, which comprises the following components in percentage by mass: 5-25% of nitrogen; 9%-26% of phosphorus; 8%-28% of potassium; 5%-10% of humic acid; 60%-80% of an organic material; 0.5%-2% of medium trace elements; 0.5%-1% of a microbial agent; the organic material comprises but is not limited to lignite, straw powder or a combination thereof; the medium trace elements comprise the following components in percentage by mass: 30%-40% of zinc; 20% to 30% of iron; 10% to 20% of calcium; 20% to 30% of magnesium; the microbial agent comprises one or more of nitrogen-fixing bacteria, phosphorus dissolving bacteria and potassium dissolving bacteria. Nitrogen, phosphorus, potassium, humic acid and medium trace elements are chelated, so that nutrients are in a stable release state in soil, and the problem of nutrient loss caused by too fast dissolution of a conventional fertilizer is effectively avoided.

The invention discloses a process for repairing damaged soil ecology by lincomycin waste liquid fertilizer, and relates to the technical field of soil remediation, which comprises the following specific steps: step 1, screening and culturing microbial decomposition flora, the invention has the following advantages: through the chelation of the polyaspartic acid derivative on metal ions and the promotion effect on nutrient absorption, the release and transmission of nutrients are precisely regulated and controlled, so that crops can absorb and utilize the nutrients more efficiently; the nano composite material and the specific biological stimulant containing various beneficial microbial strains and natural plant extracts are jointly fused into the liquid fertilizer, the microbial strains in the specific biological stimulant activate the soil biological environment, the natural plant extracts assist plant growth to resist diseases, and the nano composite material and the natural plant extracts have a synergistic effect, so that the liquid fertilizer has a good application prospect. Physicochemical properties and biological activity of soil are optimized, excellent soil micro-ecology is created for plant growth, healthy and strong growth of plants is promoted, and restoration of damaged soil is enhanced.

The invention provides an edible fungus culture medium and a preparation method, and relates to the technical field of edible fungus cultivation, and the edible fungus culture medium comprises the following components by mass: 10-20 parts of a seaweed polysaccharide matrix, 5-15 parts of insect protein powder, 15-25 parts of biological carbon fiber, 10-20 parts of corncob powder, 0.5-2 parts of a natural silicon source, a proper amount of a trace element solution, and a proper amount of water. The algal polysaccharide matrix is obtained by extracting algal polysaccharides, including algin or alginic acid, from algae in hot water, the insect protein powder is prepared by drying, crushing and carrying out enzymolysis on yellow mealworms or fly maggots, the biochar fibers are prepared by pyrolyzing bamboo or crop straws, and the natural silicon source is diatomite, bentonite or perlite; the particle size of the natural silicon source is micron-sized, and the trace element solution contains zinc, iron, copper and manganese elements. The culture medium has the beneficial effects that the problems of unbalanced nutrition, poor physical performance, weak disease resistance and the like of the culture medium in the prior art are effectively solved.

The invention provides an improvement method of soda saline-alkali soil, and belongs to the technical field of soil improvement. The method comprises the following steps: crushing corn straws, spreading the crushed corn straws on the surface of soda saline-alkali soil according to the addition amount of 15-20 tons / hectare, ploughing, harrowing, ridging, sowing jute seeds, fertilizing, and burying a drip irrigation belt in the middle of a ridge at a position 3-5 cm away from the earth surface. According to the method, the straw returning technology is matched with jute planting, the soil salinity and alkalinity of the soda saline-alkali soil are remarkably reduced, the soil fertility is improved, the soil environment is improved, and the yield and quality of jute are remarkably improved.

The invention provides a saline-alkali soil wheat planting method, and relates to the technical field of wheat planting. The method comprises the following steps: firstly, adopting pretreated desulfurized gypsum and potassium fulvate as a soil conditioner to improve the saline-alkali soil structure, then adopting a row-shrinking ridging planting mode, applying a base fertilizer in a drip irrigation manner, and cooperating with a compound microbial agent containing bacillus subtilis, chlorella and the like to enhance the soil activity, and through precise water and fertilizer integrated management in the wheat growth period, the soil quality is improved. And fertilizers such as urea and potassium phosphate and microbial agents are dripped in different growth periods, so that sufficient and balanced nutrition supply is ensured. The saline-alkali soil wheat planting method can remarkably improve the soil fertility of the saline-alkali soil, promote wheat root development and stress resistance, improve the wheat yield, optimize the water and fertilizer utilization efficiency and save resources, is suitable for practical application in drought saline-alkali soil and has wide popularization value.

The present application relates to the field of agricultural soil improvement material and fertilizer engineering technology, in particular to an acid paddy soil organic-inorganic improver preparation method based on multi-component distribution ratio; the process comprises the steps of preparing a composite pore substrate loaded with trace elements, forming an inorganic core, constructing an organic buffer layer, coating a micro-ecological layer and cross-linking and solidifying; the method is based on a hot-activated composite of attapulgite and sodium bentonite, and an inorganic core is constructed by combining step-by-step vacuum impregnation of trace elements; the core is to use xanthated in situ coordination and cross-linking on the surface of the core to form an isolation film and a buffer layer, and to suspend spore powder in sodium alginate and the like, and to synchronously spray calcium chloride to cross-link and solidify to construct a microcapsule shell; the present application avoids the loss of biological effectiveness of trace elements due to the formation of precipitates, gently adjusts the pH value of the soil, effectively solves the problem of easy loss of activity of microorganisms in the conventional process, and improves the physical structure of the soil for water and fertilizer conservation.

The invention relates to a durable road marking paint and a preparation method thereof, and belongs to the technical field of paints.The durable road marking paint is prepared from a component A and a component B. The mass ratio of the component A to the component B is (4-5): (95-96), the component A is prepared from, by mass, 15-30 parts of polyvinyl chloride, 15-20 parts of styrene-acrylic resin, 5-10 parts of acrylonitrile-butadiene-styrene copolymer and 5-10 parts of polyetherimide; 20 to 30 parts of a silane coupling agent and 15 to 30 parts of polyether modified organic silicon; and the component B comprises 10-15 parts of petroleum resin, 5-10 parts of polytetrafluoroethylene, 5-8 parts of rutile titanium dioxide, 38-42 parts of superfine calcium carbonate powder, 5-10 parts of nano spherical silica powder and 18-20 parts of reflective glass beads. The durability of the road marking paint can be improved, the overall reflective performance of the material can be improved, and the service life of the road marking can be prolonged.

This invention provides a slope protection material composed of recycled heavy metal tailings and its preparation method. The material includes: recycled heavy metal tailings treated with a heavy metal chelating agent as a heavy metal ion capture agent, the chelating agent being added at 0.05%–0.2% of the heavy metal tailings weight; recycled heavy metal tailings as aggregate, which is mixed with natural soil to form a base material at a ratio of 1:1.5–2.5; fine aggregate and fine sand, added at 5%–10% of the base material weight; and high-viscosity industrial-grade sodium alginate added as a water-retaining and reinforcing agent, added at 0.5%–2.0% of the base material weight. Additionally, 28% organic matter is added to the base material. The application of this invention effectively solves the problems of ineffective utilization of recycled heavy metal tailings and excessive use of scarce natural soil in existing technologies, and also addresses the issues of weak strength, poor effectiveness in steep slope treatment, and poor stability in existing slope protection materials.

The invention belongs to the technical field of lithium ion batteries, and relates to a cyano electrolyte additive, an electrolyte and a lithium ion battery. The cyano electrolyte additive comprises a nitrile additive and a functional additive; the structural formula of the functional additive is shown in the specification. The nitrile additive and the functional additive are compounded, the functional additive has a cyano group and a triazine ring, the triazine ring is chelated with transition metal ions and cooperates with the cyano group to form a film, and a benzene ring rigid structure can enhance the thermal stability. The nitrile additive and the functional additive have a cyano complementation effect, three phenyl groups in the functional additive are connected with a triazine ring, so that the functional additive has a larger structure and steric hindrance and cannot be completely complexed with transition metal ions on the surface of the positive electrode, and the short-chain nitrile additive has a smaller structure and can make up the space of the functional additive; and the two synergistically form a complementary effect to form a compact interfacial film on the surface of the positive electrode so as to improve the high-temperature performance.

The present invention discloses a method for preparing a woven fabric-based cellulose-amino acid composite diaphragm. In order to solve the problems of poor mechanical properties and electrolyte wettability of existing diaphragms, high cost, and being unfavorable for industrial application, the present invention proposes a method for preparing a sodium ion battery diaphragm using woven fabric as a substrate, cellulose and amino acids as filling materials, through dissolution, commingling, coating, and replacement processes. The composite diaphragm of the present invention utilizes the orderly interlacing of the warp and weft yarns of the woven fabric to achieve the design of the pore structure and curvature of the diaphragm, while improving the mechanical properties of the diaphragm, and establishing an efficient ion transmission channel inside the battery. In the present invention, the filling materials cellulose and amino acids further optimize the pore structure of the diaphragm, enrich the polar functional groups of the diaphragm, and improve the cycle stability of the battery and extend the cycle life of the battery through uniform electric field distribution and ion concentration.

The invention provides a remediation method for soil in a semi-arid region, and belongs to the technical field of soil remediation. According to the remediation method for the soil in the semi-arid region, the physical structure of the soil is optimized through deep ploughing and rainwater collection, a straw matrix, the chemical environment is regulated and controlled through a composite conditioner, the biological function is enhanced through mixed sowing of local pioneer plants and a composite microbial agent, and a multi-dimensional synergistic remediation system is formed; local pioneer plants are selected, so that the invasion risk of alien species is avoided; natural materials such as degradable starch mulching film, decomposed straw and organic fertilizer are adopted and matched with the compound microbial agent, no chemical residue exists, local microbial community optimization can be promoted, and the stability of a soil ecological system can be improved; straw, cattle and sheep manure and other agricultural wastes are used for preparing a matrix and an organic fertilizer, and the raw material cost is reduced; the design of the rainwater collecting ditches is combined with natural rainwater resources, the manual irrigation cost is reduced, the soil ecosystem can be autonomously kept stable after remediation is completed, and secondary degradation is effectively avoided.

This invention proposes a method and system for constructing a microbial and vegetation synergistic revegetation system for coastal saline soil engineering sites. It belongs to the field of ecological restoration engineering technology. The method includes: analyzing the micro-topographic features of coastal saline soil engineering sites, identifying heterogeneous areas of natural micro-topography, and generating micro-topographic feature data; designing differentiated micro-topographic modification schemes based on the micro-topographic feature data, constructing a micro-topographic modification model with spatial differentiation characteristics, and providing a suitable micro-environmental basis for subsequent synergistic effects of microorganisms and vegetation; and deeply coupling MIP (microbial community-induced calcium carbonate mineralization) technology with the screening of salt-tolerant plant functional groups, combined with differentiated micro-topographic modification design, breaking the traditional separation between soil improvement and planting, effectively improving the soil structure of coastal saline soil, enhancing soil water retention, providing a suitable soil environment for stable vegetation establishment, and avoiding revegetation failure due to unsustainable soil structure improvement.

The invention relates to the technical field of saline-alkali dry farmland improvement. The invention provides a modifier for saline-alkali dry farmland as well as application and a use method of the modifier. The modifier comprises the following components in parts by weight: 25-35 parts of corn straws, 27-31 parts of corncobs, 17-23 parts of peanut shells, 13-17 parts of soybean meal, 4-6 parts of humic acid, 0.4-0.6 part of polyglutamic acid and 0.4-0.6 part of wood vinegar powder. The multifunctional bio-based modifier provided by the invention is suitable for improvement and utilization of moderately severe saline-alkaline dry farmland, effectively reduces the saline-alkaline degree, increases the content of organic matters and nutrients, and promotes the growth of plants. After the fertilizer is applied for 2-3 years, the normal cultivation level is reached, long-term cultivation and utilization of moderate and severe saline-alkali soil can be realized by combining conventional soil improvement and fertilization measures, the cultivated area is supplemented, the per unit yield of crops is improved, and the national grain safety is guaranteed. The multifunctional bio-based macromolecular modifier has great application prospect and popularization potential in improvement and utilization of moderate and severe saline-alkali soil.

The present invention relates to a method for regulating seedling formation of sandy locust seeds, belonging to the technical field of seed treatment and seedling cultivation, and the method comprises: step 1, disinfection and cleaning; step 2, seed soaking treatment: soaking sandy locust seeds in a mixed solution of cellulase and hemicellulase for 2-6 hours, and then soaking the seeds in 0.1%-0.3% KNO3 for 6-10 hours; step 3, placing on a bed for cultivation. The enzyme treatment is combined with KNO3 to treat sandy locust seeds, and the treatment can improve the emergence rate of sandy locust seeds and the number of branches, plant height and total biomass of sandy locust seedlings.

The invention relates to the technical field of medicines, in particular to a terbutaline sulfate aerosol inhalation solution and a preparation method thereof. The solution realizes a performance breakthrough through a molecular synergistic effect of polysorbate modified cyclodextrin: firstly, hydroxypropyl-beta-cyclodextrin and polysorbate 80 are activated and covalently grafted to form a modified carrier with a core-shell structure, and then the modified carrier is compounded with terbutaline sulfate, sodium chloride, edetate disodium and sodium hydrogen sulfite to prepare the solution. The stable core-shell structure formed through chemical grafting is combined with the synergistic effect of the chelating agent and the antioxidant, the technical problems that a traditional preparation is low in atomization efficiency, high in burst release risk and poor in stability are effectively solved, and a safer and more efficient inhalation solution is provided for treatment of respiratory diseases.

The invention discloses a preparation method of a corrugated paper-based biodegradable mulching film, which is an innovative method for preparing a cellulose-based biodegradable agricultural mulching film by taking waste paper with low recovery value, especially corrugated paper fibers for packaging, as raw materials through a solution casting film surface sizing process. The method effectively solves the problems of fiber pore wall shrinkage and cellulose co-crystallization caused by a repeated wetting-drying process. The prepared mulching film has excellent physical properties, heat preservation and soil moisture conservation effects and biodegradability, meets the use requirements of agricultural mulching films, solves the problem of white pollution caused by traditional plastic mulching films, and promotes cyclic utilization and sustainable development of resources.

This invention discloses a method for rapidly improving the productivity of degraded grassland, relating to the field of grassland ecological restoration technology, and is mainly applicable to degraded Leymus chinensis meadow steppes in temperate continental semi-arid climates. The method involves a combined root-cutting and fertilization operation on the target degraded grassland, followed by enclosure and management to complete the restoration. During the regreening period of the degraded grassland, 1-2 rows and oblique root cuts are performed at 6-10 day intervals. Fertilization involves applying 45-60 kg / mu of granular or mixed organic fertilizer. Granular or mixed organic fertilizer is applied 3-5 days after root cutting, and enclosure and management are implemented for 2-2.5 years with a complete ban on grazing. This invention is simple to operate, effectively promotes the natural recovery of Leymus chinensis communities, rapidly improves the productivity of degraded grasslands, meets the restoration needs of degraded Leymus chinensis meadow steppes in temperate continental semi-arid climates, and is easily scalable and applicable.

This invention relates to a bacterial strain that improves the physical structure of red mud and its application. The strain BRT1 is classified as Staphylococcus epidermidis. Staphylococcus epidermidis The accession number is GDMCC No. 66375, the accession date is May 22, 2025, and the depositary institution is Guangdong Microbial Culture Collection Center. This invention utilizes the BRT1 strain, which efficiently improves the physical structure of red mud, solving the technical problem of poor red mud structure. The BRT1 strain secretes extracellular polymeric substances (EPS) as a bio-cementitious agent, effectively promoting the aggregation of red mud particles and forming stable aggregate structures.

The invention relates to the technical field of microorganisms, and discloses saccharomycetes using non-protein nitrogen and application of the saccharomycetes, and the saccharomycetes using the non-protein nitrogen are named as candida utilis FJM60; the preservation number of the candida utilis FJM60 is CGMCC (China General Microbiological Culture Collection Center) No.31888. The invention provides saccharomycetes utilizing non-protein nitrogen, namely candida utilis FJM60, which can efficiently grow in various non-protein nitrogen source environments and shows remarkable biomass accumulation and protein production capacity, so that a new thought is provided for solving the problems of high nitrogen source cost and limited resources in the feed industry.