CN113785751B - Bougainvillea spectabilis culture medium and preparation method thereof - Google Patents
Bougainvillea spectabilis culture medium and preparation method thereof Download PDFInfo
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Abstract
The invention provides a bougainvillea spectabilis culture medium and a preparation method thereof, which belong to the technical field of garden agriculture and comprise a first medium, a second medium and a third medium, wherein the first medium is prepared from the following raw materials in parts by weight: 30-60 parts of leaf-rotting soil, 8-18 parts of coal cinder, 1-10 parts of wood dust and 0-10 parts of peanut shell; the second matrix is prepared from the following raw materials in parts by weight: 10-70 parts of plant ash, 1-10 parts of rooting powder and 0.1-2 parts of hardening inhibitor; the third matrix is prepared from the following raw materials in parts by weight: 40-60 parts of compost sludge and 10-20 parts of multi-element compound water-soluble fertilizer; the invention adopts a plurality of matrix combinations on the soil matrix for planting, can provide good growth conditions for the cultivation of the bougainvillea spectabilis, and provides the cultivation survival rate and the whole effect of the bougainvillea spectabilis.
Description
Technical Field
The invention relates to the technical field of garden agriculture, in particular to a bougainvillea spectabilis culture medium and a preparation method thereof.
Background
Bougainvillea is also known as bougainvillea, which is a vine-like shrub of the genus bougainvillea of the family Mirabilidaceae. The stems are thick and strong, the branches drop, and no hair or soft hair is dredged; the thorns grow to 5-15 mm. Blade paper, oval or egg-shaped needle-like, warm and moist climate, cold-resistant and sufficient illumination. The variety is various, the plant adaptability is strong, the plant is widely distributed in the south area, and the plant can be cultivated in the cold north. The flowering period of bougainvillea spectabilis is generally from the month of October in the current year to the month of July in the next year, the leaves and the buds of the bougainvillea spectabilis are large, the color is bright like flowers, the duration is long, the ornamental value is very good, and the bougainvillea spectabilis is one of the plant varieties commonly planted in garden gardening.
The method for planting bougainvillea spectabilis generally comprises the following steps: under natural conditions, supplying sufficient water and fertilizer to ensure nutrition supply in the growing process of bougainvillea spectabilis, and properly pruning diseased branches and stumps; the vigorous growth period of bougainvillea spectabilis is 4-10 months, the blooming is started in 11-12 months, and the flowering period is generally 2-3 months. However, as market demand increases, bougainvillea spectabilis planted in the above-described manner may result in a short bougainvillea spectabilis supply time, and particularly, the bougainvillea spectabilis supply amount is severely reduced during 6 to 11 months per year, and bougainvillea spectabilis supply is in short supply.
The prior art mainly adopts cutting and high-pressure propagation technology aiming at the bougainvillea spectabilis, the culture medium is also a conventional medium, and the survival rate and the overall effect of the bougainvillea spectabilis are not good.
Disclosure of Invention
Aiming at the problems, the invention provides a bougainvillea spectabilis culture medium and a preparation method thereof.
The aim of the invention is realized by adopting the following technical scheme:
the bougainvillea spectabilis culture medium comprises a first medium, a second medium and a third medium, wherein the first medium is prepared from the following raw materials in parts by weight: 30-60 parts of leaf-rotting soil, 8-18 parts of coal cinder, 1-10 parts of wood dust and 0-10 parts of peanut shell; the second matrix is prepared from the following raw materials in parts by weight: 10-70 parts of plant ash, 1-10 parts of rooting powder and 0.1-2 parts of hardening inhibitor; the third matrix is prepared from the following raw materials in parts by weight: 40-60 parts of compost sludge and 10-20 parts of multi-element compound water-soluble fertilizer.
Preferably, the weight ratio of the first substrate, the second substrate and the third substrate is 3: (1-3): (1-2).
Preferably, the preparation method of the compost sludge comprises the following steps:
dewatering the submerged sludge to obtain dewatered sludge with water content of 60-75% and organic matter dry matter content of 25-50%, adding conditioner, and mixing, wherein the weight ratio of the conditioner to the dewatered sludge is (3-8): 10, regulating the carbon-nitrogen ratio to 25-35 to obtain a mixed material, adding a composite microbial inoculum A according to 1-5% of the mass of the mixed material, fully mixing, then carrying out stacking fermentation, wherein the stacking height is 0.4-1.0m, and the ventilation quantity is kept at 0.05-1.00m 3 /min·m 3 Spreading a layer of composite microbial inoculum B on the surface of the fermentation pile when the core temperature of the fermentation pile is raised to 45-55 ℃, and continuously piling until the temperature of the fermentation pile is consistent with the ambient temperature to prepare the compost sludge;
wherein the conditioner consists of corn straw, wood dust and ammonia nitrogen absorbent.
Preferably, the mass ratio of the corn stalk, the wood dust and the ammonia nitrogen absorbent in the conditioner is 1: (1-2): (1-2).
Preferably, the composite microbial inoculum A is one or more of bacillus subtilis, bacillus licheniformis and pseudomonas aeruginosa.
Preferably, the compound bacterial agent B is one or more of paracoccus denitrificans, azotobacter chroococcus and trichoderma viride.
Preferably, the preparation method of the ammonia nitrogen absorbent comprises the following steps:
and respectively weighing biphenyl-3, 3', 5' -tetracarboxylic acid and aluminum trichloride, dissolving in 1-2wt.% hydrochloric acid solution to obtain mixed solution A, transferring the mixed solution A into a high-pressure reaction kettle with a polytetrafluoroethylene lining for hydrothermal reaction, keeping the hydrothermal temperature at 200-210 ℃, carrying out heat preservation reaction for 60-72h under autogenous pressure, cooling after the reaction is finished, separating white precipitate, washing with deionized water, and carrying out vacuum drying to obtain the ammonia nitrogen absorbent.
Preferably, the preparation method of the ammonia nitrogen absorbent comprises the following steps:
(1) Crushing dried plant biomass, heating to 700-800 ℃ in a protective atmosphere, carrying out heat preservation and heat treatment for 2 hours, cooling to obtain biochar, and mixing the biochar with graphene oxide according to a weight ratio of 10: (0.5-2) after mixing, heating to 300-400 ℃ at a heating rate of 10-20 ℃/min under a protective atmosphere, carrying out thermal insulation pyrolysis for 4 hours, and washing with deionized water to be neutral after self-cooling to room temperature to obtain modified biochar;
(2) Dispersing the modified biochar in a mixed solution of concentrated nitric acid and concentrated sulfuric acid according to a liquid-to-material ratio of 5-10ml/g, stirring and reacting for 1-4h, filtering out a precipitate, washing the precipitate with deionized water to be neutral, dispersing the precipitate in a 10mol/L sodium hydroxide solution again, stirring and reacting for 1-2h, filtering out the precipitate, washing the precipitate with deionized water to be neutral, dispersing the precipitate in a 20% hydrogen peroxide solution according to a liquid-to-material ratio of 3-4ml/g, stirring and reacting for 1-2h, filtering out the precipitate, washing the precipitate with deionized water to be neutral, and drying to obtain the ammonia nitrogen absorbent.
Preferably, the multi-element compound water-soluble fertilizer is a slow-release compound fertilizer, and the preparation method comprises the following steps:
weighing sodium lignin sulfonate, dissolving in deionized water according to a feed liquid ratio of 1-4g/100ml, stirring and mixing for 1-10min at normal temperature, adding sodium alginate and konjaku flour according to a feed liquid ratio of 1-4g/100ml and 1-2g/100ml respectively, continuously stirring and mixing for 2-4h to obtain mixed liquid B, adding 0.1-0.2mol/L calcium chloride solution with the volume of 50% of the mixed liquid B, continuously stirring and reacting for 0.5-1h, repeatedly freezing and thawing, soaking with deionized water, removing soaking water, cutting into small blocks, adding 0.1-0.2mol/L aluminum chloride ethanol solution for soaking for 24h, performing annealing treatment in air after freeze drying, annealing at 300-400 ℃ for 10-20min, cooling to obtain a slow release carrier, adding the slow release carrier into a compound water soluble fertilizer for soaking load, filtering and drying, spraying 75-85% ethanol solution on the surface, wetting lignin powder on the slow release carrier, spraying a layer of cellulose acetate and ethyl acetate on the surface, and drying to obtain the slow release compound fertilizer.
The beneficial effects of the invention are as follows:
(1) According to the invention, a plurality of matrix combinations are adopted on the soil matrix for planting, so that good growth conditions can be provided for the cultivation of the bougainvillea spectabilis, the cultivation survival rate and the overall effect of the bougainvillea spectabilis are provided, wherein the first matrix plays the roles of improving, loosening soil and promoting drainage, the second matrix plays the role of promoting the bougainvillea spectabilis to root, and the third matrix provides a fertility effect, provides good nutrient elements for the bougainvillea spectabilis and effectively promotes the growth of the bougainvillea spectabilis.
(2) Sludge composting is essentially the conversion and stabilization of organic matter in sludge by a series of biochemical reactions under the action of microorganisms. Under natural environment conditions, the composting period is long, the effect is poor, a large amount of nitrogen loss is easy to cause, and the like, and the defects of the traditional composting method can be well improved by adding the conditioner.
(3) The bougainvillea spectabilis sexual happiness fertilizer is characterized in that the bougainvillea spectabilis sexual happiness fertilizer is rich in flowers, long in flowering phase and large in nutrient consumption, a large amount of nitrogen, phosphorus and potassium are needed in the growing process, the pot soil is less, the nutrients are limited, and the fertilizer and the nutrients must be timely supplemented.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1
The bougainvillea spectabilis culture medium comprises the following components in percentage by weight: 2:1.5, a first matrix, a second matrix and a third matrix, comprising a first matrix, a second matrix and a third matrix, wherein the first matrix is prepared from the following raw materials in parts by weight: 50 parts of leaf rot soil, 12 parts of coal cinder, 6 parts of wood chips and 3 parts of peanut shells; the second matrix is prepared from the following raw materials in parts by weight: 60 parts of plant ash, 3 parts of rooting powder and 1 part of sodium alkyl benzene sulfonate; the third matrix is prepared from the following raw materials in parts by weight: 50 parts of compost sludge and 12 parts of multi-element compound water-soluble fertilizer;
the preparation method of the compost sludge comprises the following steps:
dewatering the submerged sludge to obtain dewatered sludge with the water content of 68% and the organic matter dry basis content of 29%, wherein the mass ratio of the dewatered sludge to the conditioner is 5:3 adding conditioner, mixing, regulating carbon nitrogen ratio of system to 30 to obtain mixed material, adding composite microbial inoculum A according to 3% of the mass of the mixed material, fully mixing, piling up, fermenting at a piling height of 0.4-1.0m and ventilation volume of 0.05-0.2m 3 /min·m 3 Spreading a layer of composite microbial inoculum B on the surface of the fermentation pile when the core temperature of the fermentation pile is raised to 45-55 ℃, and continuously piling until the temperature of the fermentation pile is consistent with the ambient temperature to prepare the compost sludge;
the conditioning agent comprises the following components in percentage by mass: 2:2, corn stalk, wood dust and ammonia nitrogen absorbent;
the composite microbial inoculum A is a mixed culture solution of bacillus subtilis, bacillus licheniformis and pseudomonas aeruginosa;
the composite microbial inoculum B is a mixed culture solution of paracoccus denitrificans, azotobacter chroococcus and trichoderma viride;
the preparation method of the ammonia nitrogen absorbent comprises the following steps:
molar ratio 2:1 respectively weighing biphenyl-3, 3', 5' -tetracarboxylic acid and aluminum trichloride, dissolving in 1-2wt.% hydrochloric acid solution to obtain mixed solution A, transferring the mixed solution A into a high-pressure reaction kettle with a polytetrafluoroethylene lining for hydrothermal reaction, keeping the hydrothermal temperature at 200-210 ℃, carrying out heat preservation reaction for 70h under autogenous pressure, cooling after the reaction is finished, separating white precipitate, washing with deionized water, and carrying out vacuum drying to obtain the ammonia nitrogen absorbent.
Example 2
The bougainvillea spectabilis culture medium comprises the following components in percentage by weight: 2:1.5, a first matrix, a second matrix and a third matrix, comprising a first matrix, a second matrix and a third matrix, wherein the first matrix is prepared from the following raw materials in parts by weight: 50 parts of leaf rot soil, 12 parts of coal cinder, 6 parts of wood chips and 3 parts of peanut shells; the second matrix is prepared from the following raw materials in parts by weight: 60 parts of plant ash, 3 parts of rooting powder and 1 part of sodium alkyl benzene sulfonate; the third matrix is prepared from the following raw materials in parts by weight: 50 parts of compost sludge and 12 parts of multi-element compound water-soluble fertilizer;
the preparation method of the compost sludge comprises the following steps:
dewatering the submerged sludge to obtain dewatered sludge with the water content of 68% and the organic matter dry basis content of 29%, wherein the mass ratio of the dewatered sludge to the conditioner is 5:3 adding conditioner, mixing, regulating carbon nitrogen ratio of system to 30 to obtain mixed material, adding composite microbial inoculum A according to 3% of the mass of the mixed material, fully mixing, piling up, fermenting at a piling height of 0.4-1.0m and ventilation volume of 0.05-0.2m 3 /min·m 3 Spreading a layer of composite microbial inoculum B on the surface of the fermentation pile when the core temperature of the fermentation pile is raised to 45-55 ℃, and continuously piling until the temperature of the fermentation pile is consistent with the ambient temperature to prepare the compost sludge;
the conditioning agent comprises the following components in percentage by mass: 2:2, corn stalk, wood dust and ammonia nitrogen absorbent;
the composite microbial inoculum A is a mixed culture solution of bacillus subtilis, bacillus licheniformis and pseudomonas aeruginosa;
the composite microbial inoculum B is a mixed culture solution of paracoccus denitrificans, azotobacter chroococcus and trichoderma viride;
the preparation method of the ammonia nitrogen absorbent comprises the following steps:
(1) Crushing dried plant biomass, heating to 700-800 ℃ in a protective atmosphere, carrying out heat preservation and heat treatment for 2 hours, cooling to obtain biochar, and mixing the biochar with graphene oxide according to a weight ratio of 10:1, heating to 340 ℃ at a heating rate of 10-20 ℃/min under a protective atmosphere, preserving heat and pyrolyzing for 4 hours, self-cooling to room temperature, and washing with deionized water to neutrality to obtain modified biochar;
(2) Dispersing the modified biochar in a volume ratio of 1 according to a liquid-to-material ratio of 10 ml/g: 3, stirring and reacting for 2 hours, filtering out the precipitate, washing the precipitate with deionized water to neutrality, dispersing the precipitate in 10mol/L sodium hydroxide solution again, stirring and reacting for 1 hour, filtering out the precipitate, washing the precipitate with deionized water to neutrality, dispersing the precipitate in 20% hydrogen peroxide solution according to the liquid-to-material ratio of 3-4ml/g, stirring and reacting for 1 hour, filtering out the precipitate, washing the precipitate with deionized water to neutrality, and drying to obtain the ammonia nitrogen absorbent.
Example 3
The bougainvillea spectabilis culture medium comprises the following components in percentage by weight: 2:1.5, a first matrix, a second matrix and a third matrix, comprising a first matrix, a second matrix and a third matrix, wherein the first matrix is prepared from the following raw materials in parts by weight: 50 parts of leaf rot soil, 12 parts of coal cinder, 6 parts of wood chips and 3 parts of peanut shells; the second matrix is prepared from the following raw materials in parts by weight: 60 parts of plant ash, 3 parts of rooting powder and 1 part of sodium alkyl benzene sulfonate; the third matrix is prepared from the following raw materials in parts by weight: 50 parts of compost sludge and 12 parts of multi-element compound water-soluble fertilizer;
the preparation method of the compost sludge comprises the following steps:
dewatering the submerged sludge to obtain dewatered sludge with the water content of 68% and the organic matter dry basis content of 29%, wherein the mass ratio of the dewatered sludge to the conditioner is 5:3 adding conditioner, mixing, regulating carbon nitrogen ratio of system to 30 to obtain mixed material, adding composite microbial inoculum A according to 3% of the mass of the mixed material, fully mixing, piling up, fermenting at a piling height of 0.4-1.0m and ventilation volume of 0.05-0.2m 3 /min·m 3 Spreading a layer of composite microbial inoculum B on the surface of the fermentation pile when the core temperature of the fermentation pile is raised to 45-55 ℃, and continuously piling until the temperature of the fermentation pile is consistent with the ambient temperature to prepare the compost sludge;
the conditioning agent comprises the following components in percentage by mass: 2:2, corn stalk, wood dust and ammonia nitrogen absorbent;
the composite microbial inoculum A is a mixed culture solution of bacillus subtilis, bacillus licheniformis and pseudomonas aeruginosa;
the composite microbial inoculum B is a mixed culture solution of paracoccus denitrificans, azotobacter chroococcus and trichoderma viride;
the preparation method of the ammonia nitrogen absorbent comprises the following steps:
molar ratio 2:1, respectively weighing biphenyl-3, 3', 5' -tetracarboxylic acid and aluminum trichloride, dissolving in 1-2wt.% hydrochloric acid solution to obtain mixed solution A, transferring the mixed solution A into a high-pressure reaction kettle with a polytetrafluoroethylene lining for hydrothermal reaction, keeping the hydrothermal temperature at 200-210 ℃, carrying out heat preservation reaction for 70h under autogenous pressure, cooling after the reaction is finished, separating white precipitate, washing with deionized water, and carrying out vacuum drying to obtain the ammonia nitrogen absorbent;
the preparation method of the multi-element compound water-soluble fertilizer is characterized in that the multi-element compound water-soluble fertilizer is a slow-release compound fertilizer, and the preparation method comprises the following steps:
weighing sodium lignin sulfonate, dissolving the sodium lignin sulfonate in deionized water according to a feed liquid ratio of 2g/100ml, stirring and mixing for 10min at normal temperature, adding sodium alginate and konjaku flour according to a feed liquid ratio of 4g/100ml and 2g/100ml respectively, continuously stirring and mixing for 2-4h to obtain mixed liquor B, adding 0.12mol/L calcium chloride solution with 50% of the volume of the mixed liquor B, continuously stirring and reacting for 0.5h, repeatedly freezing and thawing treatment, soaking in deionized water, removing soaking water, cutting into small blocks, adding 0.2mol/L aluminum chloride ethanol solution for soaking for 24h, freeze-drying, annealing in air at the annealing temperature of 360 ℃ for 11min, cooling to obtain a slow release carrier, adding the slow release carrier into a compound water-soluble fertilizer for soaking load, filtering and drying, spraying 75-85% ethanol solution on the surface, coating the lignin powder on the slow release carrier, and spraying a layer of ethyl acetate solution containing 5% cellulose acetate and 2% liquid paraffin on the surface, and drying to obtain a slow release preparation with the load of 32.43 wt.%.
Example 4
A slow release preparation of a multi-element water-soluble fertilizer, the preparation method comprises the following steps:
weighing sodium lignin sulfonate, dissolving in deionized water according to a feed liquid ratio of 2g/100ml, stirring and mixing for 10min at normal temperature, adding sodium alginate and konjaku flour according to a feed liquid ratio of 4g/100ml and 2g/100ml respectively, continuously stirring and mixing for 2-4h to obtain mixed solution B, adding 0.12mol/L calcium chloride solution with 50% of the volume of the mixed solution B, continuously stirring and reacting for 0.5h, repeatedly freezing and thawing treatment, soaking in deionized water, removing soaking water, cutting into small blocks, adding 0.2mol/L aluminum chloride ethanol solution for soaking for 24h, freeze-drying, annealing in air at an annealing temperature of 360 ℃ for 11min, cooling to obtain a slow-release carrier, adding the slow-release carrier into a compound water-soluble fertilizer for soaking load, filtering and drying to obtain the slow-release preparation with the load capacity of 31.24 wt.%.
Example 5
A slow release preparation of a multi-element water-soluble fertilizer, the preparation method comprises the following steps:
in mass ratio 1:1, adding the porous mineral bentonite and perlite serving as slow release carriers into a composite water-soluble fertilizer for soaking and loading, filtering out and drying, spraying 75-85% ethanol solution on the surface for wetting, coating lignin powder on the slow release carriers, spraying a layer of ethyl acetate solution containing 5% cellulose acetate butyrate and 2% liquid paraffin on the surface, and drying to obtain a slow release preparation with the loading capacity of 27.18 wt.%.
Experimental example
1. Sustained release fertilizer efficiency
Firstly, loading 2cm quartz sand into a chromatographic column with a sand core, which is 30cm in height and 5.8cm in inner diameter, then loading 250g of the slow release preparation described in the examples 3, 4 and 5, and covering the column with the 2cm quartz sand to prevent disturbance during water addition; 250mL of water (based on water exudation at the bottom of the plastic cup) is added for the first time to enable the soil moisture to be close to saturation, 200mL of water is added after 2d of culture, leaching solution is collected at the same time, after 2d of culture at room temperature (taking care of preventing dry cracking of leaching columns), the leaching is carried out for the second time by 200mL of water, and then the operation is carried out according to the same procedure for each time. I.e. 2d of leaching for 1 time and total leaching for 8 times.
Transferring the leaching solution into a 500mL volumetric flask, adding water to fix volume, and detecting indexes such as total nitrogen, total phosphorus, total potassium and the like, wherein the result is as follows:
2. ammonia nitrogen content of compost sludge
The ammonia nitrogen content and the total nutrient content of the compost sludge prepared in the examples 1 and 2 are measured by taking the compost sludge fermented by adding the equivalent amount of activated carbon to replace ammonia nitrogen absorbent as a comparison, wherein the measuring method of the ammonia nitrogen content adopts a Nami reagent colorimetric method, and the total nutrient is nitrogen content and P 2 O 5 And K 2 The sum of the O contents is measured as follows:
| example 1 | Example 2 | Comparison | |
| Ammonia nitrogen content (%) | 1.7 | 1.8 | 0.9 |
| Total nutrient content (%) | 6.2 | 6.3 | 3.8 |
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (5)
1. The bougainvillea spectabilis culture medium is characterized by comprising a first medium, a second medium and a third medium, wherein the first medium is prepared from the following raw materials in parts by weight: 30-60 parts of leaf-rotting soil, 8-18 parts of coal cinder, 1-10 parts of wood dust and 0-10 parts of peanut shell; the second matrix is prepared from the following raw materials in parts by weight: 10-70 parts of plant ash, 1-10 parts of rooting powder and 0.1-2 parts of hardening inhibitor; the third matrix is prepared from the following raw materials in parts by weight: 40-60 parts of compost sludge and 10-20 parts of multi-element compound water-soluble fertilizer;
the preparation method of the multi-element compound water-soluble fertilizer is characterized in that the multi-element compound water-soluble fertilizer is a slow-release compound fertilizer, and the preparation method comprises the following steps:
weighing sodium lignin sulfonate, dissolving in deionized water according to a feed liquid ratio of 1-4g/100ml, stirring and mixing for 1-10min at normal temperature, adding sodium alginate and konjaku flour according to a feed liquid ratio of 1-4g/100ml and 1-2g/100ml respectively, continuously stirring and mixing for 2-4h to obtain mixed liquid B, adding 0.1-0.2mol/L calcium chloride solution with the volume of 50% of the mixed liquid B, continuously stirring and reacting for 0.5-1h, repeatedly freezing and thawing, soaking with deionized water, removing soaking water, cutting into small blocks, adding 0.1-0.2mol/L aluminum chloride ethanol solution for soaking for 24h, performing annealing treatment in air after freeze drying, annealing at 300-400 ℃ for 10-20min, cooling to obtain a slow release carrier, adding the slow release carrier into a compound water soluble fertilizer for soaking load, filtering and drying, spraying 75-85% ethanol solution on the surface, wetting lignin powder on the slow release carrier, spraying a layer of cellulose acetate and ethyl acetate on the surface, and drying to obtain the slow release compound fertilizer;
the slow release carrier is prepared by taking natural sodium alginate and konjaku flour as gel materials to obtain gel, then realizing gradient distribution with gradually increased content from inside to outside in the gel through natural permeation diffusion of aluminum ions, and preparing the alumina hollow material with a layered structure through an annealing process, wherein the slow release carrier is used for loading a multi-element composite water-soluble fertilizer and can realize slow release of the fertilizer, provide long-acting fertility for bougainvillea glabra and reduce the artificial fertilization times;
the preparation method of the compost sludge comprises the following steps:
dewatering the submerged sludge to obtain dewatered sludge with water content of 60-75% and organic matter dry matter content of 25-50%, adding conditioner, and mixing, wherein the weight ratio of the conditioner to the dewatered sludge is (3-8): 10, regulating the carbon-nitrogen ratio to 25-35 to obtain a mixed material, adding a composite microbial inoculum A according to 1-5% of the mass of the mixed material, fully mixing, then carrying out stacking fermentation, wherein the stacking height is 0.4-1.0m, and the ventilation quantity is kept at 0.05-1.00m 3 /min·m 3 Spreading a layer of composite microbial inoculum B on the surface of the fermentation pile when the core temperature of the fermentation pile is raised to 45-55 ℃, and continuously piling until the temperature of the fermentation pile is consistent with the ambient temperature to prepare the compost sludge;
wherein the conditioner consists of corn straw, wood dust and ammonia nitrogen absorbent; the preparation method of the ammonia nitrogen absorbent comprises the following steps:
and respectively weighing biphenyl-3, 3', 5' -tetracarboxylic acid and aluminum trichloride, dissolving in 1-2wt.% hydrochloric acid solution to obtain mixed solution A, transferring the mixed solution A into a high-pressure reaction kettle with a polytetrafluoroethylene lining for hydrothermal reaction, keeping the hydrothermal temperature at 200-210 ℃, carrying out heat preservation reaction for 60-72h under autogenous pressure, cooling after the reaction is finished, separating white precipitate, washing with deionized water, and carrying out vacuum drying to obtain the ammonia nitrogen absorbent.
2. The bougainvillea spectabilis culture medium according to claim 1, wherein the weight ratio of the first medium, the second medium and the third medium is 3: (1-3): (1-2).
3. The bougainvillea spectabilis culture medium according to claim 1, wherein the mass ratio of the corn stalks, the wood chips and the ammonia nitrogen absorbent in the conditioner is 1: (1-2): (1-2).
4. The bougainvillea spectabilis culture medium according to claim 1, wherein the composite microbial inoculum A is one or more of bacillus subtilis, bacillus licheniformis and pseudomonas aeruginosa.
5. The bougainvillea spectabilis culture medium according to claim 1, wherein the composite microbial inoculum B is one or more of Paracoccus denitrificans, azotobacter chroococcus and Trichoderma viride.
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