832results about "Alkali orthophosphate fertiliser" patented technology

The invention discloses a biomass charcoal composite hydrogel slow-release fertilizer as well as a preparation method and application thereof, and belongs to the field of composite hydrogel and fertilizer preparation. The invention provides a biomass charcoal composite hydrogel slow release fertilizer, which comprises biomass charcoal, hydrogel fixed on the pores and surface of the biomass charcoal, and an element fertilizer mixed in the hydrogel, and the hydrogel is prepared from metal cations and alginate. The invention provides a strategy of'in-hole in-situ gelation ', hydrogel is prepared in situ in gaps of the biochar, and the biomass charcoal composite hydrogel slow-release fertilizer is prepared. The biochar and the hydrogel in the slow-release fertilizer are high in bonding strength and mechanical strength, so that the slow-release fertilizer has the slow-release function of the fertilizer and also has the capability of improving soil.

The invention discloses a large-scale pig breeding wastewater purification treatment system, and relates to the technical field of wastewater treatment.The large-scale pig breeding wastewater purification treatment system is characterized in that the ion concentration of anaerobic liquid is monitored through a multi-ion sensing array, and a multi-channel feeding system is controlled to synthesize customized struvite compound fertilizer; the AI prediction control unit predicts the optimal medicament dosage and realizes millisecond-level closed-loop regulation; the multi-dimensional synergistic biochemical treatment module comprises an A / O biochemical treatment unit and an electric field enhanced anaerobic ammonia oxidation reactor, the electric field enhanced anaerobic ammonia oxidation reactor applies a direct-current electric field through an electrode pair, and engineering conductive biochar is used as a carrier to accelerate microbial metabolism; the sludge low-temperature pyrolysis self-consistent circulation module is used for pyrolyzing and converting residual sludge into biochar, biofuel and wood vinegar, and the biochar activation treatment unit is used for preparing engineering conductive biochar and forming a substance closed loop through a self-consistent circulation conveying system; and the digital twinning intelligent management and control platform realizes intelligent management and control of the system.

The invention provides a nutrient slow-release synergistic seedling transplanting disc and application thereof. The nutrient slow-release synergistic seedling transplanting disc is composed of a disc body and a seedling cup, the disc body is composed of two layers of materials including PBAT and PLA, the seedling cup is composed of three layers of materials, the inner layer is made of the PBAT material, the middle layer is a strip-shaped fertilizer belt made of macroelements, organic fertilizer, bacterial fertilizer and microelements, and the outer layer is made of the PLA material. The nutrient slow-release synergistic seedling transplanting disc integrates seedling raising and fertilization and can be used for seedling transplanting of grafted seed melons, seedling cups are directly transplanted into soil during transplanting, seedlings and the disc do not need to be manually separated, the seedling transplanting disc does not need to be recycled and transported after transplanting, the seedling cups in the soil isolate damage of salt, alkali and diseases and insect pests to seedling roots, and the seedling transplanting disc is convenient to use. Meanwhile, nutrient substances are slowly released, nutrients needed by melon seedlings are accurately met, the problem that an original seedling raising plate pollutes the environment is solved, and the problems that roots are damaged during transplanting, fertilization is balanced, the growth environment of the roots is poor and germs are harmed are solved.

The invention relates to the technical field of compound fertilizers, and discloses a boron-zinc-molybdenum synergistic compound fertilizer, which is prepared from the following raw materials in parts by weight: calcium nitrate, ammonium polyphosphate, potassium sulfate, magnesium sulfate, disodium octoborate tetrahydrate, sugar alcohol chelated zinc, sodium molybdate and a synergistic auxiliary agent, the feed additive is prepared from a feed additive, an activator, 5-alginic acid oligosaccharide, aminolevulinic acid, sugar alcohol chelated magnesium, an antagonist, a stress-resistant enhancer and a coating material. According to the boron-zinc-molybdenum synergistic interaction compound fertilizer and the preparation process thereof, the disodium octoborate tetrahydrate, the sugar alcohol chelated zinc and the sodium molybdate are compounded according to a specific proportion, antagonism is avoided through proportion limitation, the synergistic effect of the three elements is remarkably enhanced, and the problem that a single element is insufficient or excessive is solved; chelated elements such as sugar alcohol chelated zinc and sugar alcohol chelated magnesium are combined with an activating agent (humic acid chelated calcium and silica sol) to form a gel-state chelate, so that the trace elements can be prevented from being fixed by soil, and the transfer efficiency of the trace elements in crops is improved.

The application relates to an organic-inorganic compound fertilizer containing functional microorganisms and a production method thereof, and relates to the technical field of fertilizers. The fertilizer comprises an inorganic core layer, an organic coating layer and a functional microorganism outer layer. The functional microorganism outer layer comprises the following components in mass fractions: 10-15 parts of compound functional microorganisms, 5-10 parts of synergistic growth-promoting microorganisms, 2-3 parts of trehalose, 1-2 parts of mannitol, 10-15 parts of sodium alginate, 8-10 parts of chitosan, 2-4 parts of yeast extract and 30-40 parts of modified active carbon carriers. The production method comprises the following steps: preparing the inorganic core layer, preheating the inorganic core layer, spraying the organic coating layer material to coat the surface, and obtaining a preliminary product with the organic coating layer; coating the functional microorganism outer layer material on the surface of the organic coating layer of the preliminary product, low-temperature drying and screening, and obtaining the organic-inorganic compound fertilizer containing the functional microorganisms. The application has the effects of improving the slow-release effect of the fertilizer and the survival rate of the microorganisms.

The invention discloses a humic acid coated zeolite-based nutrient-loaded slow-release fertilizer as well as a preparation method and application thereof. The slow-release fertilizer comprises a zeolite-based core and a humic acid polymer coating coated outside the zeolite-based core. The slow release fertilizer provided by the invention not only retains the original high-loading nutrient loading function of the nano composite zeolite material, but also endows the nano composite zeolite material with chemically stable ion exchange and adsorption functions, thereby thoroughly getting rid of the original'instant nutrient fertilizer salt core '; the slow-release fertilizer provided by the invention takes artificial humic acid as a coating material, so that the use of chemical organic materials and solvents is completely avoided. According to the invention, the conversion of the inorganic fly ash solid waste and the organic biomass solid waste from raw materials to the ecological slow-release fertilizer is realized. Meanwhile, the efficient conversion of zeolitization and humification in the chemical industrial process realizes the large-scale production of the zeolite-based material doped with the heterogeneous metal in the pore cage frame structure and the carbon-negative humic acid polymer material.

The present invention belongs to the technical field of biomass resource utilization and microbial fertilizers, and specifically relates to a fertilizer based on oil-tea camellia cattail, a preparation method and its application. The fertilizer described in the present invention is prepared by a collaborative fermentation process of Aspergillus niger, Phanerochaete chrysosporium and Bacillus subtilis. The obtained fermentation product is separated into solid and liquid to obtain a solid, the solid being a solid fertilizer, and the liquid being a foliar fertilizer after post-treatment. Both can be used for the cultivation of crops such as tangerines and oil-tea camellias. Based on the microbial collaborative fermentation process, the content of anti-nutritional factors tannin and tea saponin in the obtained solid fertilizer is significantly reduced, which is less than 1.8 g / kg and 0.1% respectively on a dry basis, while maintaining a seed germination index higher than 95%. According to a planting comparative test, the average yield per mu of oil-tea camellias using the solid fertilizer and liquid fertilizer obtained in this application increased by 12%. The average yield per mu of tangerines increased by about 11%, and the sugar, vitamin C, and trace element contents in tangerines were higher than those using traditional fertilizers.

The invention discloses an element liquid fertilizer for promoting nutrient absorption and a preparation method thereof, and belongs to the technical field of fertilizers. Comprising monoammonium phosphate; urea; potassium nitrate; cake fertilizer leach liquor; trace elements; a wetting agent; a stabilizer; a biological agent; an adsorbent; deionized water; the preparation method of the adsorbent comprises the following steps: A1, taking loofah sponge powder, and removing lignin and hemicellulose to obtain loofah sponge cellulose powder; a2, mixing the loofah sponge cellulose powder, deionized water, a chitosan solution and plant ash, mechanically pulping uniformly, performing vacuum freeze-drying treatment to form holes, crushing and grinding to obtain the adsorbent, root development can be promoted, elongation and thickening of stems are promoted, the photosynthetic rate of plants is increased, and the crop yield is increased.

The invention relates to a low-temperature preparation method of a high-activity chelated zinc fertilizer, and belongs to the technical field of fertilizer chemical industry. Aiming at the problems of chelate decomposition and high energy consumption caused by an existing high-temperature process, ethylene diamine tetraacetic acid is added step by step in a low-temperature environment of 35-45 DEG C: firstly, an initial chelating solution is formed by adding 0.8-1.0 time of theoretical chelating molar weight, and then a sodium hydroxide solution is dropwise added to control the pH to be 3.5-4.5 within 60-120 minutes and is stable; and then supplementing ethylenediaminetetraacetic acid which is 0.1-0.2 time of the theoretical amount, reacting for 60-120 minutes to achieve chelation balance, and finally stirring, aging and naturally cooling. The method obviously improves the chelating efficiency and the product stability, reduces the energy consumption, and is used for preparing the efficient and stable liquid zinc fertilizer.

The invention belongs to the technical field of soil improvement, and relates to a soil conditioner for improving sandy soil structure and a preparation method thereof, and the preparation method specifically comprises the following steps: preparing activated humic acid, preparing a nano mineral material, preparing modified biochar, constructing biochar composite gel, and preparing konjac glucomannan-sodium alginate water-retaining colloid. Mixing the biochar composite gel, the water-retaining colloid and the slow-release fertilizer, granulating and the like. Through a ternary synergistic system of the biochar composite gel, the water-retaining colloid and the slow-release fertilizer, the functional singleness is broken through, the structure-water retention-fertilizer supply integration is realized, and the problems that an existing sandy soil conditioner is single in function, poor in component synergism, weak in environmental adaptability, insufficient in long-term effect and the like are solved.

The invention relates to the technical field of fertilizers and pesticides for agricultural production, and discloses a liquid pesticide fertilizer for preventing and treating root-knot nematodes in a water-fertilizer integrated system and application thereof, and the liquid pesticide fertilizer is prepared from the following components: a plant source nematicide, a biocontrol inoculant, a macroelement and medium trace element fertilizer, a boron cross-linking agent, a modified polycarboxylic acid dispersing agent, a microbial protective agent and the like. The preparation method comprises the steps of biological phase pretreatment, matrix phase construction, oil phase micro-emulsification, multiphase fusion and dynamic crosslinking. Through trehalose gradient permeation pretreatment, the survival rate of biocontrol bacteria in a high-salt matrix is increased; a boric acid ester bond dynamic cross-linked network is constructed by using a variable pH adjusting process, so that the system is endowed with shear thinning characteristics, and the contradiction between suspension stability and drip irrigation fluidity is solved; and the chelating dispersion effect of the modified polycarboxylic acid dispersing agent is matched, so that the generation of precipitates is effectively inhibited, and stable coexistence and synergistic interaction of the pesticide, the fertilizer and the bacteria are realized.

The invention provides an amino acid water-soluble fertilizer as well as a preparation method and application thereof, and relates to the technical field of amino acid water-soluble fertilizers. The amino acid water-soluble fertilizer comprises compound amino acid, a microbial fermentation product, inorganic salt, a surfactant, a dispersing agent and a preservative, the microbial fermentation product is obtained by aerobic fermentation of radix puerariae and rhizoma atractylodis through a complex microbial inoculant; the compound amino acid is composed of animal protein hydrolyzed amino acid and vegetable protein hydrolyzed amino acid. According to the water-soluble fertilizer disclosed by the invention, through the synergistic interaction of the compound amino acid and the microbial fermentation product, multi-objective optimization of nutrition supply, stress resistance regulation and metabolism enhancement is realized, the yield and the quality of crops are remarkably improved, an efficient and environment-friendly solution for increasing the yield and improving the quality is provided for the crops, and the water-soluble fertilizer has a remarkable agricultural application value.

The invention relates to the technical field of fertilizers, in particular to a seaweed-containing synergistic monoammonium phosphate fertilizer as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a seaweed extract with beta-cyclodextrin, performing microencapsulation, and performing spray drying to obtain an embedded material; mixing with monoammonium phosphate and polyglutamic acid, and granulating; spraying salt-resistant compound bacteria liquid on the surfaces of the particles; and finally, coating the particles with a chitosan-sodium alginate composite film. According to the prepared synergistic monoammonium phosphate fertilizer finished product, the phosphorus utilization rate of monoammonium phosphate saline-alkali soil can be increased, the phosphorus fixation rate can be greatly reduced, the retention rate of active ingredients of the seaweed extract is greatly increased compared with that in the prior art, the rhizosphere survival rate of salt-tolerant flora is greatly increased, and the salt-tolerant flora, the seaweed extract and monoammonium phosphate cooperate to promote crop yield increase.

Biofertilizer granule comprising a core and a coating, said core comprises at least one fertilizer chosen in the group comprising NPK fertilizer, monoammonium phosphate (MAP), diammonium phosphate (DAP), potassium sulphate (SOP), single super phosphate (SSP), triple super phosphate (TSP), frass from insects, frass from fish or shellfish, and their mixture, said coating comprises at least a binding agent and a soil activator composition having an extended shelf-life duration.

The present invention provides a silica / hydrotalcite composite slow-release fertilizer and a preparation method thereof, comprising the following steps: uniformly mixing amorphous silica, a divalent metal salt, a trivalent metal salt, and water to obtain a mixed solution; subjecting the mixed solution to a hydrothermal reaction, followed by filtering, washing, and drying to obtain a silica / hydrotalcite nanocomposite material; calcining the silica / hydrotalcite nanocomposite material to obtain a silica / metal oxide nanocomposite material; and loading inorganic and organic fertilizers onto the silica / metal oxide nanocomposite material to obtain a silica / hydrotalcite composite slow-release fertilizer. This preparation method is simple, highly feasible, low-cost, and easily scalable for industrial production. The layered and pore-channel structure of the silica / hydrotalcite nanocomposite material effectively provides ample space for the loading of nutrients, thereby improving the slow-release efficiency of nutrients in the fertilizer, increasing nutrient utilization efficiency, reducing fertilization frequency, and minimizing potential environmental impacts.

The invention provides an organic-inorganic-microbial composite water and fertilizer retention soil conditioner and a preparation method thereof. The organic-inorganic-microbial composite water and fertilizer retention soil conditioner comprises an organic material, a microbial agent and composite phosphate fertilizer slow-release carboxylated modified hydrogel microbeads (inorganic material), the compound phosphate fertilizer slow-release carboxylated modified hydrogel microbeads are mixed with organic materials such as humic acid and a microbial agent, so that the phosphorus slow-release effect and the soil water absorption and retention effect are further improved, and the compound phosphate fertilizer slow-release hydrogel microbeads have high water absorption and retention and fertilizer slow-release functions, can effectively improve soil, increase the soil water retention and phosphate fertilizer effectiveness, improve the enzyme activity of the soil and improve the fertilizer utilization rate. Soil moisture and fertility loss is reduced; the raw materials are wide in source, low in cost, safe and harmless, the preparation process is simple, and the prepared soil conditioner is harmless to the soil environment, has high water absorption and water retention and a fertilizer slow release function, can effectively improve soil and can be used for enhancing the water retention and physicochemical properties of the soil.

The invention discloses a fertilizing method for improving the yield and quality of cigar tobacco leaves and application. A fertilizing method for improving the yield and quality of cigar tobacco leaves comprises the following steps: when the cigar tobacco leaves are transplanted to mature and harvested, the total nitrogen application amount is 6-10 kg / mu according to the pure nitrogen amount, the applied compound fertilizer comprises the following components in parts by mass: 6.0-9.0 parts of N, 7.7-27.3 parts of P2O5, 20.0-50.0 parts of K2O and 7.0-9.6 parts of S, the base fertilizer is applied on the day of transplanting, and the top fertilizer is applied once 1-2 weeks after transplanting and 3-4 weeks after transplanting, the mass ratio of the base fertilizer to the single additional fertilizer is (1-1.5): (1-4.5). According to the fertilizing method, tobacco plants grow tidily and pleasantly in the field, the early-stage growth vigor is robust, the medium-stage fertilizer nutrient supply is sufficient, the later-stage tobacco growth is stable, and the requirements of high-quality cigar groups and individual growth vigor are met.

This invention provides a method for preparing and applying a rice husk charcoal-modified substrate suitable for multi-mode rice seedling raising, belonging to the field of rice seedling raising technology. The invention first soaks rice husk charcoal in water, then soaks it in a mixed solution of citric acid and ammonium sulfate, and finally air-dries the rice husk charcoal to obtain modified rice husk charcoal. Finally, the modified rice husk charcoal is mixed with different fertilizers to obtain a rice husk charcoal-modified substrate suitable for rice seedling raising in different modes. The rice husk charcoal-modified substrate prepared by this invention can be used not only in tray seedling raising but also has good seedling rolling effect in blanket tray seedling raising.

The invention discloses an organic fertilizer prepared based on purification treatment of coal gangue and a preparation method of the organic fertilizer, and belongs to the technical field of bio-organic fertilizers. The method comprises the steps of coal gangue washing selection, coal gangue material activation, coal gangue fermentation, mixed fermentation and bacteria treatment. The preparation method comprises the following steps: firstly, performing water crushing, sorting, ball milling and the like on coal gangue, then soaking and activating in acid liquor, then sequentially performing aerobic fermentation and mixed fermentation, and then performing aging and bacteria treatment to prepare the organic fertilizer. According to the method, the problem that the organic fertilizer produced by using the coal gangue is weak in efficacy is solved based on the full pretreatment of the coal gangue for producing the organic fertilizer in the early stage in combination with an optimized fermentation process.

The invention relates to the technical field of saline-alkali soil improvement, and discloses a preparation method and application of a compound fertilizer. The method comprises the following steps: crushing and mixing gypsum stone with more than or equal to 85% of sulfate and fly ash with more than or equal to 25% of calcium oxide according to a ratio of 2: 1 to form an alkaline mixture with the total content of calcium and magnesium being more than or equal to 60%; the method comprises the following steps: chelating humic acid (a carboxylic acid group is greater than or equal to 40%) with a citric acid solution according to a ratio of 3: 2 to prepare an organic acid buffer solution with the pH value of 8.0-9.5; and mixing the alkaline mixture, a buffer solution and a nitrogen-phosphorus-potassium compound fertilizer (18-12-10) according to a ratio of (60-76%): (8-15%): (16-25%), adding a silica sol dispersing agent, sterilizing, fermenting, granulating and forming. The compressive strength of the obtained fertilizer particles is larger than or equal to 15 N, and when the fertilizer particles are applied in cooperation with acid irrigation water, the soil sodium ion adsorption rate can be increased by 30%-50%, the pH value is reduced by 0.5-1.5 units, and the crop yield is increased by 15%-25 The saline-alkali soil conditioner has the functions of reducing salt, regulating acid and promoting growth, and is suitable for improvement of moderate and severe saline-alkali soil.

The invention discloses a fruit and vegetable grafting wound healing nutrient solution containing polysaccharide complex enzyme and a preparation method, belongs to the technical field of agricultural biochemical preparations, and aims to solve the technical problems of low removal efficiency of necrotic tissues at grafting wounds and high risk of microbial infection. According to the technical scheme, the nutrient solution is characterized by being prepared from the following raw material components in parts by weight: 0.3 to 0.8 part of polysaccharide, 1 to 5 parts of cellulase, 0.5 to 2.5 parts of pectinase, 1 to 5 parts of glycerol and 90 to 100 parts of water. Wherein the pH value of the nutrient solution is adjusted to 5.0-6.5 by using a phosphate buffer agent, the polysaccharide is composed of chitosan and sodium alginate, the mass ratio of the chitosan to the sodium alginate is 1: 0.5-1: 2, the activity of cellulase in the nutrient solution is 100-500 U / mL, and the activity of pectinase in the nutrient solution is 50-250 U / mL. The nutrient solution is mainly used for promoting fruit and vegetable grafting wound healing, and application verifies that the nutrient solution can effectively improve wound healing quality and reduce infection risk in the grafting process of fruits and vegetables such as cucumbers, eggplants, peppers, tomatoes, litchis and oranges, and has a good application effect.

The invention discloses a method for preparing an amino acid water-soluble fertilizer by processing animal blood, which belongs to the technical field of water-soluble fertilizer preparation, and comprises the following steps: step 1, collecting animal blood, and performing centrifugal treatment to remove part of impurities and blood cell fragments in the blood to obtain a relatively pure plasma part; 2, compound protease is added into the pretreated animal blood for an enzymolysis reaction, meanwhile, sodium selenite is added into an enzymolysis system, and the sodium selenite serves as a selenium source; 3, after enzymolysis is completed, a compound microbial agent is added into enzymatic hydrolysate, and aerobic fermentation is carried out; according to the method for preparing the amino acid water-soluble fertilizer through animal blood processing, the structural design is reasonable, the added selenium element can enhance the stress resistance of plants and improve the quality of agricultural products, and an acidolysis method or an enzymolysis method and a liquid fertilizer or solid fertilizer production mode are flexibly selected, so that the optimal economic benefits and social benefits are achieved.

The invention relates to the technical field of plant cultivation, and provides preparation of a hydrothermal straw carbon-based fertilizer and application of the hydrothermal straw carbon-based fertilizer in corn cultivation, and the hydrothermal straw carbon-based fertilizer comprises hydrothermal straw biochar and a fertilizer; the hydrothermal straw biochar is prepared by taking rice straw as a raw material and carrying out hydrothermal carbonization reaction. On one hand, the pore structure of the straw charcoal is optimized by adjusting process conditions of a hydrothermal carbonization method and the like, so that the hydrothermal straw charcoal-based fertilizer plays a role in promoting growth of corn, or the pore structure and surface groups of the straw charcoal are adjusted by a post-treatment oxidation process, so that the slow release effect of the hydrothermal straw charcoal-based fertilizer is improved.

The invention relates to the technical field of compound fertilizers, and discloses a root-promoting stress-resistant corn special fertilizer and a preparation method thereof, the root-promoting stress-resistant corn special fertilizer comprises an organic compound matrix, 8-15 parts of sodium alginate, 3-10 parts of bacillus subtilis, 3-7 parts of chelated zinc, 8-15 parts of potassium fulvate, 5-10 parts of polyaspartic acid, 17-25 parts of potassium nitrate, 12-20 parts of ammonium sulfate, 10-20 parts of bentonite and 25-35 parts of monoammonium phosphate, through the synergistic effect of various components in the fertilizer, efficient promotion of corn growth is realized, nitrogen provided by monoammonium phosphate promotes corn leaf growth and enhances photosynthesis, and phosphorus mainly promotes root development, so that the root is more developed, and the absorption capacity of the root to moisture and nutrients is improved; meanwhile, the resistance of the corn to adverse situations such as drought and cold is enhanced.

The invention relates to the field of Chinese herbaceous peony cultivation, and discloses a method for promoting Chinese herbaceous peony cultivation by utilizing natural low-temperature dormancy breaking, which comprises the following steps: planting Chinese herbaceous peony in a sunlight greenhouse in autumn, and harvesting for many years after one-time planting; performing sleep breaking treatment on the Chinese herbaceous peony by using natural low temperature in autumn and winter under the assistance of a cooling mode of covering a heat-preservation shading cotton quilt in the daytime, removing the cotton quilt at night and ventilating, and performing natural low-temperature sleep breaking treatment for 45-70 days according to the cold demand of different varieties without supplementing water during the period; after dormancy breaking, solar radiation is used for natural temperature rise, the day and night temperature is regulated and controlled through ventilation and heat preservation measures, manual light supplement is not needed in the whole process, and growth period management is assisted. The illumination is blocked by covering a high-shading-rate cotton quilt in the daytime, the cotton quilt is removed at night, ventilation and cooling are conducted, and the surface temperature is controlled to be smaller than or equal to 7.5 DEG C, so that the Chinese herbaceous peony naturally accumulates the required cooling capacity in the open environment, refrigeration house equipment and an artificial low-temperature environment do not need to be relied on, energy consumption and facility cost are greatly reduced, and the green and environment-friendly concept is met.

The invention relates to the technical field of fertilizer preparation, and particularly discloses a biological organic fertilizer rich in deep sea enzymolysis fish protein and a preparation method of the biological organic fertilizer. The biological organic fertilizer is prepared from the following components in parts by weight: 35 to 45 parts of organic fertilizer (containing deep sea enzymolysis fish protein, tobacco powder, meat powder and bone meal), 6 to 15 parts of compound microorganism (such as bacillus licheniformis and the like), 5 to 10 parts of medium element fertilizer, 1 to 2 parts of trace element fertilizer, 0.1 to 1 part of xanthan gum and sulfur suspension, 30 to 35 parts of outer layer fertilizer (containing humic acid, urea and the like) and 0.1 to 0.5 part of anti-blocking agent. The preparation method comprises the following steps: separately fermenting microorganisms to prepare bacterial powder; mixing, crushing and granulating the raw materials to form master batches; spraying xanthan gum and sulfur suspension on the surface of the master batch to form a film; spraying the outer-layer fertilizer slurry for several times; and finally, an anti-blocking agent is sprayed, and air drying is conducted. The deep sea enzymolysis fish protein is taken as a core, the balance of quick-acting fertilizer efficiency and slow release is realized, the soil structure can be improved, the crop growth is promoted, the stress resistance and the fertilizer utilization rate are improved, the soil-borne diseases are inhibited, and the method has the advantages of high efficiency, environment friendliness, economy, practicability and the like.

The invention discloses a method for preparing a humic acid water-soluble fertilizer from caragana microphylla slurry and melaleuca alternifolia essential oil, and relates to the technical field of fertilizers. The problems that raw material resources for preparing the humic acid water-soluble fertilizer are limited, and the preparation cost is high are solved. The method specifically comprises the following steps: preparing raw materials: caragana microphylla, melaleuca alternifolia essential oil and an auxiliary reagent; preparation and biotransformation of caragana microphylla pulp; emulsifying the melaleuca alternifolia essential oil; performing fertilizer compounding and quality regulation and control; and processing and storing finished products. The method has the characteristics of efficient utilization of resources, function synergy and environmental friendliness, the caragana microphylla in the preparation raw materials is a waste branch in a desert area and can turn waste into wealth, the essential oil is a natural extract and replaces a chemical synthesis synergist in an existing preparation method, soil is improved through humic acid, soil-borne diseases are inhibited through the essential oil, root absorption is promoted through the essential oil, and the soil-borne diseases are prevented from being damaged. Meanwhile, the humic acid water-soluble fertilizer is free of harmful residues and suitable for green agriculture.

The application discloses a humification preparation containing bacillus licheniformis and a preparation method and application thereof, and belongs to the technical field of microorganisms. The humification preparation comprises the bacillus licheniformis and thermus arciformis. The bacillus licheniformis is preserved in the China General Microbiological Culture Collection Center on June 27, 2025, and the address of the preservation center is No. 3, Xili Beichen, Chaoyang District, Beijing, and the preservation number is CGMCC No. 35039. The bacillus licheniformis is separated from a coastal saline-alkali soil, has high-temperature resistance and salt tolerance, and can secrete protease and lipase. After the bacillus licheniformis and the thermus arciformis are mixed, the synergistic effect is obvious, duck-derived red mud can be effectively converted into humic acid, and resourceful high-value utilization of the duck-derived red mud is realized.

The invention discloses modified biochar as well as a preparation method and application thereof, and belongs to the technical field of aerobic composting additives, the preparation method of the modified biochar comprises the following steps: adding corn straw biochar into a Na2HPO4 solution according to a solid-to-liquid ratio of 1g: (5-10) mL by adopting an impregnation method, adjusting the pH value of a mixed system to 10.8-11.2 by adopting an alkali liquor, and stirring to obtain a mixed solution; then carrying out magnetic stirring reaction, and after the reaction is finished, carrying out centrifugal separation, washing and drying to obtain the modified biochar. The prepared modified biochar is used as an aerobic composting additive, so that greenhouse gas emission can be remarkably reduced, nitrogen retention and compost nutrient content are improved, compost maturity is promoted, plant toxicity is reduced, and a microbial community structure is directionally regulated and controlled. According to the invention, the functionality of the biochar is enhanced through chemical modification, the synergism of pollution reduction, synergism, carbon sequestration and decay promotion is realized, and an effective technical path is provided for realizing low-carbon, efficient and sustainable organic waste resource utilization.

The invention provides a microbial composite remediation liquid organic fertilizer and a preparation method thereof, and aims to solve the problems of single function, limited pollution abatement capability and the like of a traditional liquid fertilizer. Through synergism of strains of bacillus velezensis, bacillus methylotrophicus, pseudomonas putida and methanogenic archaea, recycling of agricultural wastes such as straw and mushroom dreg compost and decomposition, extraction of humic acid through enzymolysis and a formula of green additives (mineral source potassium fulvate, sophorolipid and the like), chemical passivation of heavy metals, pesticide degradation and soil improvement are realized; and dynamic fermentation control and membrane separation processes are combined, so that the method has the characteristics of efficient repair and low-carbon sustainability, and an integrated solution is provided for pollution treatment of complex farmlands.