290 results about "Humin" patented technology

The invention discloses a complex microbial inoculant for coupling straw decomposition and soil carbon sequestration and a preparation method thereof, the complex microbial inoculant can rapidly promote degradation of lignocellulose of straw in soil by compounding bacillus subtilis, bacillus licheniformis, pseudomonas aeruginosa and the like, provides a basic material energy source for activity of soil microorganisms, and has the advantages of simple preparation process and low cost. Meanwhile, corresponding microorganisms achieve long-term storage of organic carbon through humus stabilization and mineral substance combined carbon (MAOC) stabilization, the storage efficiency of the organic carbon is remarkably improved through nano Fe3O4, and under the synergistic effect of all strains in the complex microbial inoculant, the carbon loss of straw returning can be effectively reduced, the carbon immobilization capacity of soil is improved, and the soil quality is improved. The organic carbon content in the soil is increased.

The invention discloses a method for preparing an organic fertilizer from livestock and poultry manure, which comprises the following steps: mixing cow dung and plant ash, pig manure and edible mushroom waste, chicken manure and vegetable waste, and duck manure and corn bran or mushroom stick residue, inoculating a corresponding mixed inoculant, fermenting and decomposing by using a trough type aerobic fermentation process, crushing, and screening to obtain the organic fertilizer. The cow dung bio-organic fertilizer, the pig manure bio-organic fertilizer, the chicken manure bio-organic fertilizer and the duck manure bio-organic fertilizer are obtained. According to the invention, rapid decomposition in 28 days in winter and 18 days in summer can be realized, meanwhile, the decomposition degree is remarkably improved, the killing rate of harmful germs reaches 98.93%, the humus content is greater than or equal to 58%, and the product is rich in microbial beneficial bacteria, rich in organic matters, mild in fertilizer efficiency and free of root burning.

A method of formulating novel humic material is disclosed comprising mixing one or more portions of Dimethylphenylpiperazinium (DMPP) with one or more portions of N-(N-butyl) thiophosphoric triamide (NBPT) with one or more portions of Isobutylidene-diurea (IBDU) with one or more portions of Polyaspartic Acid with one or more portions of Chitosan and a portion of Mycorrhizae and Rhizobia to form a portion of biostimulant material; obtaining a portion of seaweed harvest and crushing and drying said portion of seaweed to form a portion of seaweed powder; Obtaining a portion of leonardite and crushing said portion of leonardite to form a portion of humic raw material; mixing one or more portion of animal manure with one or more portion of stover with one or more portion of organic waste to form a portion of compositing mix and composting said compositing mix to form a portion of composted material; obtaining a portion of plant waste and subjecting said portion of plant waste through an anaerobic combustion to form a portion of bio char; mixing said portion of bio char with said portion of composted material with said portion of humic material to form a portion of humic processed material; adding a portion of artificial taggant to said humic processed material to form tagged humic material; mixing said tagged humic material with said portion of biostimulant material to form a portion of biostimulant humic material; adding a taggant to said portion of biostimulant humic material to form a portion of tagged biostimulant humic material; mixing one or more portion of phosphorus with a portion of potassium and a portion of nitrogen and a portion of trace minerals to form portion of raw fertilizer; mixing said portion of raw fertilizer with said portion of tagged biostimulant humic material to form a portion of tagged fertilized biostimulant humic material.

The invention belongs to the technical field of microorganisms, and particularly relates to bacillus amyloliquefaciens with high H2O2 yield and application of the bacillus amyloliquefaciens. According to the bacillus amyloliquefaciens C-50-11, H2O2 can be continuously generated in the high-temperature period of compost, H2O2 free radicals can oxidize and decompose complex organic matter to promote humus condensation in a mediated mode, the content of humus in the compost in the high-temperature period is further effectively increased, and compared with the content of humus in uninoculated compost, the content of the humus after inoculation is increased by 20% or above. According to the method disclosed by the invention, chemical degradation is realized by combining an endogenous H2O2 strengthening effect of thermophilic bacteria and utilizing an oxidizing agent generated by organisms, so that the condition of a high-temperature period of compost is fully utilized, and a new method way is provided for increasing the content of humus in the compost.

The invention relates to a method for degrading nitrobenzene pollutants by using a humus-synergistic enhanced Fenton system, which comprises the following steps: adding a peroxide oxidant, a Fe (III) catalyst and a water-soluble organic reducing agent with Fe (III) reducing capacity into soil containing nitrobenzene pollutants, uniformly mixing to form a Fenton system, adding humus, and uniformly mixing to form the nitrobenzene pollutants. Mixing and reacting to obtain the soil for degrading the nitrobenzene pollutants. Compared with the existing Fenton technology, the method has the advantages that the overall catalytic efficiency can be improved, the initial pH does not need to be adjusted, and the method is green, safe and environmentally friendly.

The invention relates to the technical field of ecological agriculture, and discloses a phytase fungicide fertilizer as well as a production method and application thereof. 1-10 parts of a phytase high expression strain; 1-8 parts of a phytase solution; 1.7 to 9 parts of an embedding material; 3-8 parts of pH buffer particles; 10-30 parts of a micro-carbon carrier; 0.02 to 0.10 part of an indoleacetic acid microcapsule; and 30-60 parts of humus powder. The invention further provides a production method of the phytase fungicide fertilizer. The method comprises the following steps: S1, performing liquid fermentation on a phytase high-expression strain; s2, mixing the thalli with an enzyme solution; s3, adding pH buffer particles into the embedded particles; s4, drying the granules in a spray drying manner; and S5, mixing the dried product with humus powder, and granulating. By constructing a microbial inoculum system containing a phytase high-expression strain, efficient activation and conversion of organic phosphorus resources are realized, and the release efficiency of the fertilizer to phosphorus resources is improved.

The invention discloses a plant cultivation substrate for ecological restoration and a preparation method thereof, and relates to the technical field of plant cultivation. The plant planting matrix is prepared from the following raw materials in parts by weight: 25 to 30 parts of urea formaldehyde foam particles, 5 to 10 parts of perlite, 8 to 10 parts of vermiculite, 8 to 12 parts of fiber carriers, 15 to 25 parts of humus, 8 to 10 parts of polyacrylic acid modified nanocrystalline cellulose, 18 to 22 parts of peat soil, 2 to 4 parts of sodium alginate modified chitosan, 0.5 to 0.8 part of plant growth regulators and 2 to 3 parts of trace elements. The plant cultivation substrate has excellent water and fertilizer retention performance, and the survival rate of plants can be increased.

The invention discloses Aspergillus sp. DLF18 and application thereof, and relates to the technical field of microorganisms, and the preservation number of the Aspergillus sp. DLF18 is CGMCC (China General Microbiological Culture Collection Center) NO.41737. The strain can effectively utilize rice straws and / or bagasse to produce humic acid, and the content of humic acid in each gram of fermentation supernatant after the rice straws are fermented is 16.5%. When the DLF18 fermentation product is applied to crops, the growth condition of the crops can be remarkably improved, and the humus content in soil is increased. Meanwhile, a metagenomics analysis result shows that compared with a control group, after the DLF18 is applied into the soil, the species beta diversity is remarkably changed, and the functional gene abundance and the inter-group difference are remarkably changed. Therefore, the DLF18 has a wide application prospect in the aspects of agricultural straw utilization and soil remediation.

The invention relates to the technical field of organic solid waste resourceful treatment, in particular to a method for enhancing degradation of biodegradable plastic compost based on white-rot fungi and manganese modified charcoal. According to the method, manganese modified charcoal and white-rot fungi are subjected to synergistic treatment, and the efficient method for intensively degrading the biodegradable plastic through aerobic composting is constructed. The method effectively overcomes the technical bottlenecks of slow degradation starting, long degradation period and easy generation of micro-plastic residues of the biodegradable plastic in traditional compost, and realizes rapid and thorough degradation of the biodegradable plastic. Besides, the method also promotes the conversion of humus precursor substances in the compost material and accelerates and stabilizes the synthesis of humus, so that the decomposition degree of the compost product is remarkably improved, and the quality and environmental safety of the final compost product are synchronously improved while the biodegradable plastic is efficiently degraded. And an efficient and reliable solution is provided for recycling of organic solid wastes and degradation of biodegradable plastic compost.

The invention discloses Penicillium chrysogenum DLS189 and application thereof, and relates to the technical field of microorganisms, and the preservation number of the Penicillium chrysogenum DLS189 is CGMCC (China General Microbiological Culture Collection Center) NO.41739. The invention further discloses a preparation method of the Penicillium chrysogenum DLS189. The strain can effectively utilize rice straws and / or bagasse to produce humic acid, and the content of humic acid in each gram of fermentation supernatant after the rice straws are fermented is 16.84%. When the DLS189 fermentation product is applied to crops, the growth condition of the crops can be remarkably improved, and the humus content in soil is increased. Meanwhile, a metagenomics analysis result shows that compared with a control group, after the DLS189 is applied into the soil, the species beta diversity is remarkably changed, and the functional gene abundance and the inter-group difference are remarkably changed. Therefore, the DLS189 has a wide application prospect in the aspects of agricultural straw utilization and soil remediation.

The invention provides a high-efficiency low-pollution cow dung returning treatment method, which comprises the following steps: adding corn straw and charcoal into cow dung, preparing a fermentation base material, inoculating a compound fermentation inoculant, and carrying out composting fermentation to prepare a cow dung organic fertilizer. The composite microbial inoculant adopts an inner and outer double-film coating structure, aerobic bacteria are embedded in the middle, are released in the early stage of composting, quickly enter a high-temperature stage and decompose and metabolize organic matters, anaerobic bacteria are embedded in the innermost layer, and an inner film coating material adopts composite modified waterborne polyurethane, so that the composite microbial inoculant has a good anti-bacterial effect. Azobenzene and waxberry tannin combined modification endows the membrane structure with the characteristics of low-oxygen cracking, normal-oxygen stability and no influence of enzyme, anaerobic bacteria are released under the low-oxygen condition in the high-temperature last stage and the decomposition period, decomposition of residual cellulose can be promoted, carbon and nitrogen loss caused in anaerobic fermentation is prevented, the speed of converting organic matter into humus is increased, and the yield of the organic matter is increased. Meanwhile, the inner film packing material reacts with the organic acid and the ethanol, so that the quality of the cow dung organic fertilizer is further ensured.

The invention relates to the technical field of sewage treatment, and particularly discloses a high-suspended-matter sewage treatment agent for an oil extraction plant. The invention discloses a high-suspended-matter sewage treatment agent for an oil extraction plant. The high-suspended-matter sewage treatment agent comprises 40-60 parts of modified bentonite; 5-15 parts of ferrous sulfate; 5-15 parts of aluminum ferric sulfate; 1 to 5 parts of ethylenediamine tetraacetic acid; 10 to 20 parts of an active biochar material; 3 to 8 parts of chitosan; 5 to 10 parts of a flocculating agent; the modified bentonite is obtained by modifying bentonite through laccase and nano zero-valent iron; the active biochar material is obtained by taking waste biomass as a raw material and carrying out semi-carbonization and activation treatment. The sewage treatment agent disclosed by the invention can be used for purifying high-suspended-matter sewage generated by oil extraction plants and oil wells, has high removal efficiency on suspended matters, and can effectively remove organic humus, so that the content of the suspended matters in the treated sewage reaches the standard.

A strengthening method for aerobic co-compost of kitchen waste anaerobic biogas residues and hermetia illucens feces belongs to the technical field of organic solid waste treatment, and the specific scheme comprises the following steps: step 1, uniformly mixing kitchen waste biogas residues, hermetia illucens feces and auxiliary materials to obtain a mixed material I; step 2, adding tea leaf residues and iron oxide into the mixed material I, and uniformly mixing to obtain a mixed material II, and step 3, carrying out aerobic composting on the mixed material II until the temperature rise period, the high-temperature period, the cooling period and the decomposition period of a compost body are normally completed. On the basis of a biogas residue-fecula aerobic co-composting system, by adding the tea leaf residues and the iron oxide, the content of humus precursor substances is increased, and conversion of the precursor substances to humus is promoted, so that formation of humic acid is facilitated, the fertilizer efficiency and application potential of a composting product are improved, and meanwhile nitrogen loss in the composting process is reduced.

The invention belongs to the technical field of artificial wetland regenerated water treatment, and particularly relates to an enhanced removal method for nitrate nitrogen and organic matters in an artificial wetland regenerated water source. According to the method, glucose, manganese ions and copper ions are added into a regenerated water source, heterotrophic bacteria are enriched in a constructed wetland packed bed, metal ions are loaded in the constructed wetland packed bed, extracellular active enzymes are generated through stress reaction of the heterotrophic bacteria to the metal ions, and then the enzymolysis process of humus organic matters difficult to biodegrade is achieved. The biodegradability of the recycled water is improved, and finally, the removal process of nitrate nitrogen and organic matters is enhanced.

The invention belongs to the technical field of biodegradable mulching films, particularly relates to a biodegradable mulching film and a preparation method thereof, and provides the following scheme aiming at the problem that the existing biodegradable mulching film material is poor in tensile strength due to the physical and chemical properties of the existing biodegradable mulching film material, so that the agricultural machinery operation requirement cannot be met. The invention discloses a degradable plastic film which is prepared from the following raw materials in parts by weight: 20-35 parts of starch, 5-15 parts of cellulose, 5-15 parts of chitosan and 10-30 parts of polylactic acid. The degradable plastic film is prepared from the following components in parts by weight: starch, cellulose, chitosan, polylactic acid, poly (butylene adipate-co-terephthalate), polymethyl ethylene carbonate, polyhydroxyalkanoate, a polyethylene cross-linking agent, ammonium stearate and calcium carbonate. By using the humus concentrated solution, the light stabilizer, the antifogging agent, the antistatic agent, the compatilizer, the polyethylene wax, the phenyl salicylate, the talcum powder, the mica powder and the kaolin, the tensile strength and the stability of the mulching film are effectively improved, so that the agricultural machinery operation requirements can be met.

The invention discloses a method for preparing porous carbon by using humin, and belongs to the field of carbon materials. The concentrated sulfuric acid is used for acidizing the humin under the conditions of high temperature and high pressure, so that the humin which is approximately spherical can be obtained, and the humin is pre-carbonized to form a relatively stable spherical structure. According to the invention, by controlling the temperature, on the premise of co-activation of carbon dioxide and water vapor and control of the gas flow rate, the porous carbon spheres with smooth surfaces can be obtained, and the yield can be improved at the same time. The method is simple to operate, the obtained porous carbon can well meet the preparation requirement of the silicon-carbon negative electrode, and the effect of turning waste into wealth is achieved.

A straw humification processing method includes steps of washing and smashing raw material to obtain smashed raw material, putting the smashed raw material into a reaction kettle, adding a sodium chloride solution into the reaction kettle, adding acetone into the reaction kettle, reacting under a protection of nitrogen, and taking out reactants and filtering to obtain a humic material. Through an effective processing of the raw material, the humus material with an organic matter content of 60%-70% is obtained, and the humus material is applied to soil improvement to effectively increase the organic matter content in soil. The straw humification processing method is simple and has a high utilization rate of the raw material.

The invention belongs to the technical field of compost, and particularly relates to a compost maturity evaluation method and application. The compost maturity evaluation method comprises the following steps: recording a temperature curve in a compost process, and taking the time when the compost temperature appears on a platform or the whole compost period as a calculation point; calculating the total heat generated from the beginning of composting to the calculation point, and recording the total heat as sigma Q; respectively measuring a seed germination rate index, humus concentration and organic matter concentration of compost before composting and at a calculation point; the difference value of the seed germination rate indexes, the difference value of the humus concentration and the difference value of the organic matter concentration are calculated and recorded as delta GI, delta HA and delta OM respectively; and calculating an organic fertilizer effect F and a humic index f, and evaluating the composting degree of the compost according to the f value. According to the method, each evaluation index is comprehensively considered, and the composting effects of different composting raw materials, different composting parameters and the like can be compared through the f value, so that the composting effects of different composts can be uniformly evaluated.

The invention discloses an in-situ remediation method for uranium pollution and application of the in-situ remediation method. According to the in-situ remediation method for uranium pollution, pyrite is driven to be hydrolyzed, oxidized, subjected to atomic rearrangement and biomineralized through interaction of microorganisms and pyrite, uranium pollutants are fixedly sealed and stored in reconstructed product iron oxide lattices, uranium pollution areas are remedied, and the microorganisms comprise one or more of brucella, geobacter and clostridium. If the uranium polluted area contains microorganisms, natural humus is used as an electron donor to stimulate in-situ microorganisms. The natural humus solution is injected into the uranium polluted area in a circulating pumping and injecting mode, in-situ microorganisms are stimulated, the concentration of the natural humus solution is 0.05-5 g / L, and the dosage of the natural humus solution is 5-500 g / day. According to the method, in-situ minerals, microorganisms and geochemical resources are fully considered and reasonably utilized, the engineering cost is saved by means of the in-situ occurrence interaction relation of the minerals and the microorganisms, and the remediation efficiency is high.

The invention relates to the technical field of waste recycling, and particularly discloses a method for preparing humus by subcritical hydrolysis of waste mushroom sticks, which comprises the following steps: adding mushroom stick powder into alkali liquor or acid liquor, adding H2O2 and FeSO4, adding ethylenediamine tetraacetic acid under an alkaline condition, and uniformly stirring to form a mixture; transferring the mixture into a high-pressure reaction kettle, reacting for a period of time at normal temperature, and then carrying out subcritical hydrothermal reaction to obtain a product 1; continuing to decay the product 1 and then carrying out suction filtration and solid-liquid separation to obtain a humus-containing liquid product. According to the method, the waste mushroom sticks are subjected to subcritical hydrolysis treatment to prepare the humus, the hydrolysis efficiency of the mushroom sticks is remarkably improved, and the hydrolysis rate reaches 80% or above. In addition, the temperature of the whole hydrothermal reaction is lower than that of a traditional pyrolysis or chemical oxidation process, energy consumption is greatly reduced, meanwhile, damage of high-temperature treatment to the humic acid structure is avoided, and the functionality of the product is effectively protected.

The invention relates to the technical field of soil detection, and particularly discloses a rapid detection method for residual sodium persulfate in soil, which comprises the following steps: S1, measuring the moisture content of soil; s2, calculating the mass of a soil dry basis according to the water content, adding deionized water into the soil to be detected, uniformly stirring, adding a flocculating agent, and filtering to obtain a soil leachate; s3, taking the soil leachate in the S2, and adding dilute sulfuric acid; s4, adding potassium iodide into the solution in S3, uniformly stirring, and carrying out dark treatment; s5, titrating the solution in S4 with a sodium thiosulfate standard solution, adding a starch indicator when the solution becomes light yellow, ending titration when the solution becomes colorless, and measuring the volume of the consumed sodium thiosulfate standard solution; and S6, calculating the content of sodium persulfate in the to-be-detected soil dry basis. The rapid detection method for residual sodium persulfate in soil provided by the invention can effectively remove humus colloid in the soil leachate, and improves the accuracy and reliability of the detection result.

The soil treatment device comprises a frame and a grinding base fixedly installed at the upper end of the frame, the upper end of the grinding base is rotationally connected with a grinding disc, and the upper end of the grinding base is fixedly connected with a power input rod; by arranging the transmission seats with different transmission ratios and cooperating with a plurality of oscillating rods with different frequencies, the rotary power of the grinding mechanism can be guided and converted into vertical reciprocating oscillating motion, and a plurality of oscillating transmission cylinders are utilized to drive a plurality of sieve plates to vibrate and shake with various frequencies, so that the corresponding screening operation is efficiently completed, and the screening efficiency is improved. Meanwhile, a dust collecting system is arranged in the dust collector, and a knocking handle is linked by utilizing an abutting cone during the working period of the dust collector, so that the knocking handle can perform knocking operation on a dust collecting filter screen of the dust collector by utilizing oscillation impact force of oscillation rods with different frequencies, dust attached to the surface of the dust collecting filter screen is forced to fall off, and the efficient dust collecting effect is achieved.

The invention discloses an ecological slope protection structure of a loess slope and a construction method. The slope protection structure comprises a deep solidification layer, an iron gauze, a solidification soil layer, a reinforcement-moisturizing layer and a seed layer. The deep curing layer is formed by mixing a consolid curing agent water aqua C444 and loess; the iron gauze covers the surface of the deep curing layer and is anchored by reinforcing steel bars; the solidified soil layer is formed by mixing a consolid curing agent and loess; the reinforced-moisturizing layer is formed by mixing a consolid curing agent, humus, a water-retaining agent, an organic fertilizer, basalt fibers and loess; the seed layer is formed by mixing seeds, a soil stabilizer, an organic fertilizer, loess and water. The soil stability can be better enhanced through the soil solidification and grass planting ecological slope protection technology, soil erosion is reduced, rain wash is slowed down, and therefore the risk of loess slope surface damage is reduced.

The invention discloses an ODR microbial agent for efficiently treating organic solid waste as well as a preparation method and application of the ODR microbial agent, and belongs to the technical field of environmental protection. The ODR microbial agent for efficiently treating the organic solid waste comprises core functional bacteria, auxiliary enzymes, a stabilizer and a carrier, the core functional bacteria comprise mesophile organisms, thermophilic bacteria and microorganisms in the decomposition period, and bacillus subtilis and pseudomonas aeruginosa are selected as the mesophile organisms. According to the ODR microbial agent for efficiently treating the organic solid waste and the preparation method and application of the ODR microbial agent, the ODR microbial agent contains mesophilic organisms, thermophilic bacteria and microorganisms in the decomposition period, a complete microbial community is formed and can cover all stages of the composting process, the mesophilic organisms rapidly decompose easily-degraded organic matter in the initial stage of composting, and the composting time is shortened; the high-temperature bacteria accelerate the decomposition of complex organic matters in the high-temperature stage, and the microorganisms in the decomposition stage promote the formation of humus in the later stage.

The present invention discloses a composite microbial agent for coupling straw decomposition and soil carbon sequestration and a preparation method thereof. The composite microbial agent of the present invention can rapidly promote the degradation of lignocellulose of straw in soil by compounding Bacillus subtilis, Bacillus licheniformis, Pseudomonas aeruginosa, etc., providing a basic material energy source for the activities of soil microorganisms. At the same time, the corresponding microorganisms achieve long-term sequestration of organic carbon through humus stabilization and mineral-associated organic carbon (MAOC) stabilization, and significantly enhance the efficiency of organic carbon sequestration through nano-Fe3O4. Under the synergistic action of various strains in this composite microbial agent, it can effectively reduce the carbon loss during straw returning to the field, improve the soil carbon sequestration capacity, and increase the organic carbon content in the soil.

The invention discloses a high-temperature and high-pressure synergistic treatment method for red mud and coal or coal gangue. The method comprises the following steps: mixing red mud, coal or coal gangue and water, and putting the mixture into a high-temperature pressure device; oxygen-containing gas is introduced or an oxidizing agent is added, the red mud and the coal or the coal gangue are subjected to mineral decomposition and reconstruction under the high-temperature and high-pressure conditions, and acidic substances generated by oxidation of sulfide minerals and carbon-based minerals in the coal or the coal gangue and alkaline substances in the red mud are subjected to a neutralization reaction; a reaction product of red mud and coal or coal gangue is desalted to serve as ecological matrix soil. According to the method, decomposition and alkali release of alkaline minerals such as nepheline in the red mud are accelerated through high temperature and high pressure, oxidation of carbon-based minerals and sulfide minerals in coal or coal gangue and conversion of humus / humic acid and the like are accelerated, alkaline substances produced through reaction are neutralized with acidic substances, and rapid dealkalization of the red mud is achieved; and the oxidation degree of the carbon-based minerals is controlled to increase the content of organic matters in a reaction product, so that full-amount resource and ecological utilization of the red mud and the coal or the coal gangue is realized.

The invention discloses a composite high-temperature bacterial agent and a method for promoting humification of compost by using the composite high-temperature bacterial agent. The composite high-temperature bacterial agent comprises at least one or two of bacillus thermotolans and Novibacillus thermophilus. The complex microbial inoculant disclosed by the invention is a thermophilic complex microbial inoculant, can directly utilize nutrient substances in organic solid wastes such as municipal sludge, livestock and poultry manure, agricultural residues, kitchen wastes and the like to grow and breed, and meanwhile, humus in compost is reduced; hydroxyl free radicals are continuously generated along with the change of anaerobic / aerobic alternating conditions of the compost, and the humification process of the compost is promoted through the free radicals.

The invention relates to the technical field of organic solid waste composting, in particular to an organic solid waste composting process utilizing electric field-microorganism synergistic fermentation. The conventional composting process for organic solid wastes is low in composting efficiency, and the content of humus in the obtained organic fertilizer is difficult to reach 140 g / kg or above. In order to solve the technical problems, the invention provides the organic solid waste composting process by utilizing electric field-microorganism synergistic fermentation, various organic solid wastes are mainly adopted for co-fermentation, the reasonable carbon-nitrogen ratio of compost is ensured, fermentation composting is performed under the synergistic effect of the electric field and microorganisms, the activity and metabolic rate of the microorganisms are promoted by the electric field, and the organic solid waste composting effect is improved. The method promotes the oxygenolysis and humus of organic matters, facilitates the generation of more humus in a short time, improves the composting efficiency, and guarantees the quality of the obtained organic fertilizer.

The invention discloses a method for preparing a soil conditioner and its application, and belongs to the technical field of soil conditioners. The method for preparing a soil conditioner provided by the invention comprises the following steps: extraction of humic acid and fulvic acid from humus; preparation of fulvic acid cross-linked chitosan; fulvic acid cross-linked chitosan, bentonite, fly ash, earthworm feces, biomass ash and humic acid are uniformly mixed in proportion to prepare the soil conditioner. Among them, fulvic acid cross-linked chitosan can improve the water absorption performance of chitosan, reduce the acidity and leaching solubility of fulvic acid, and fulvic acid can be gradually released along with the slow degradation of chitosan, which can achieve the effect of long-term improvement of soil performance.