CN104817380A - A kind of bamboo biomass charcoal-based soil conditioner and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of soil conditioners, in particular to a bamboo biomass charcoal-based soil conditioner and a preparation method thereof, wherein the preparation method comprises the following steps: cracking bamboos at high temperature to obtain bamboo biomass charcoal and combustible gas; mixing the raw material of the soil conditioner and bamboo biomass charcoal which accounts for 16-20% of the total raw material weight of the soil conditioner, melting, granulating and collecting granules; cooling the collected granules under negative pressure, and screening; and coating the screened granules, packaging and delivering to obtain the bamboo biomass charcoal-based soil conditioner. The bamboo biomass charcoal-based soil conditioner disclosed by the invention is rich in nutrient substances, coordinated and lasting in nutrient element release, high in fertilizer nutrient utilization efficiency, capable of effectively improving and fertilizing soil, improving the fertilizer utilization rate, increasing the soil organic matter content, reducing the soil volume weight, improving the soil water and fertilizer retention capacity, promoting the crop growth, remarkably improving the crop yield, improving the crop quality and having obvious economic benefits.

Description

A kind of bamboo biomass charcoal-based soil conditioner and preparation method thereof

technical field

The invention relates to the technical field of soil conditioners, in particular to a bamboo biomass charcoal-based soil conditioner and a preparation method thereof.

Background technique

Fertilization has become one of the indispensable technical measures of agricultural production, contributing more than half of crop production. The utilization rate of fertilizers in China has always been relatively low. For example, the utilization rate of nitrogen fertilizers for current season crops is only about 30% on average, which is nearly 20 percentage points lower than that of developed countries. This is due to the unscientific fertilization methods on the one hand, and the fertilizer itself on the other hand. characteristics. It is urgent to improve fertilizer utilization efficiency, and research and development of new multifunctional fertilizers is one of the important ways to improve fertilizer utilization efficiency.

Biochar is a solid product of high-temperature pyrolysis of biomass, which has many specific properties, such as porosity, high stability, high aromatization, a large number of various functional groups on the surface, and two kinds of positive and negative charges at the same time, which can adsorb molecules and Anions and cations, polar and non-polar substances. Raw materials, pyrolysis temperature, and pyrolysis time are the main factors affecting the physical and chemical properties of biochar. Generally speaking, within a certain range, with the increase of pyrolysis temperature and the extension of reaction time, the specific surface area of biochar increases. Large, aromatized structure enhanced, ash content and pH increased, available nutrients and calcium, magnesium content also increased.

Bamboo is very rich in resources in southern my country, and its growth period is short, so it is a good renewable resource. In industrial and agricultural production, a large amount of bamboo is discarded without effective use, resulting in great waste. For example, bamboo that has grown for more than 5 years is currently used in large quantities for scaffolding on construction sites, and discarded bamboo scaffolding is often disposed of as construction waste, causing a lot of waste. Due to the high carbon content of waste bamboo (more than 40%), it can be used as a raw material for preparing biochar, which has a great advantage in cost.

Soil conditioner is made of agricultural water-retaining agent and natural peat rich in organic matter and humic acid or other organic matter as the main raw materials, supplemented by biologically active ingredients and nutritional elements, and processed by scientific technology. The three soil conditioning properties of water retention, fertilization, and ventilation. It can break soil compaction, loosen soil, improve soil air permeability, reduce soil bulk density, promote soil microbial activity, and enhance soil fertilizer and water permeability; it can improve soil and control deserts. Conserve water and fight drought, enhance crop disease resistance, increase crop yield, improve the quality of agricultural products, restore the original ecology of crops and other functions, greatly increase the survival rate of tree planting and the output of agricultural products; improve the quality of agricultural and forestry products, and restore the natural appearance of agricultural and forestry products. It is completely pollution-free, pollution-free, and bio-hormone-free. It is different from various chemical fertilizers, pesticides, foliar fertilizers, and bio-hormones in the international market. It is a new type of green production material for agricultural and forestry planting in the world.

However, there are no research reports on the use of bamboo biochar and soil conditioners. Therefore, it is particularly important to develop a bamboo biomass charcoal-based soil conditioner.

Contents of the invention

In order to overcome the shortcoming and deficiency existing in the prior art, the object of the present invention is to provide a kind of preparation method of bamboo biomass charcoal-based soil conditioner, this preparation method makes bamboo biomass charcoal with waste resource bamboo, and The soil conditioner is compounded to prepare the bamboo biomass charcoal-based soil conditioner, which greatly reduces the production cost and environmental pollution, and can bring good social and economic benefits and the value of popularization and application; and the preparation method is simple in process and easy to control. The method is convenient, stable in quality, high in production efficiency and capable of large-scale industrial production.

Another object of the present invention is to provide a bamboo biomass charcoal-based soil conditioner, the bamboo biomass charcoal-based soil conditioner utilizes the physical properties of bamboo biomass charcoal to achieve effective slow release of the soil conditioner , prolong the action time of the soil conditioner, improve the utilization rate of the soil conditioner, provide long-term and sufficient nutrient supply for crops during the growth period, and provide good technical support for crop nutrient enhancement. The bamboo biomass charcoal-based soil conditioner is applied to corn, soybean, rice and other food crops, vegetables, and fruit trees. It can realize the need for topdressing in the later stage of one-time fertilization, effectively improve the level of effective components in the soil, and the content of nutrient components in crop grains. And the yield is significantly improved, the fertilizer effect is durable, and the production and income are increased.

The object of the present invention is achieved through the following technical solutions: a preparation method of bamboo biomass charcoal-based soil conditioner, comprising the steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with the bamboo biomass charcoal accounting for 16-20% of the total weight of the soil conditioner, melt and granulate, and collect the pellets; wherein, the heat required for melting is determined by the flammability Gas combustion provides;

The soil conditioner includes the following raw materials in parts by weight: 10-20 parts of livestock manure, 5-15 parts of phosphate rock powder, 6-10 parts of chitosan, 4-8 parts of compound amino acid solution, 1-3 parts of superabsorbent resin 0.5-1.5 parts of compound bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The preparation method of the present invention prepares bamboo biomass charcoal from waste resource bamboo, and then mixes it with soil conditioner to prepare bamboo biomass charcoal-based soil conditioner, which greatly reduces production costs, reduces environmental pollution, and can bring good The social and economic benefits and the value of popularization and application; and the preparation method has simple process, convenient operation and control, stable quality, high production efficiency, and large-scale industrial production.

Preferably, the step (1) specifically includes: crushing the bamboo to a particle size of 1-2mm, drying the crushed bamboo to a moisture content of less than 5%, to obtain a biomass material; 0.5-1.5:100 is placed in a high-temperature pyrolysis furnace for high-temperature pyrolysis to obtain bamboo biomass charcoal and combustible gas; the temperature for high-temperature pyrolysis is 500-700°C, and the time for high-temperature pyrolysis is 60-120min.

Biomass pyrolysis at high temperature will produce biomass charcoal, tar and combustible gas. The addition of cracking catalyst can catalyze the cracking of tar. The cracking catalyst can obtain a higher removal rate of tar at a lower reaction temperature, and can also increase the calorific value of the gas. and yield.

Preferably, the cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 30-40% of the mass of the catalyst, and the cracking catalyst The morphology is that the iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 400m ² .g ^-1 -600m ² .g ^-1 , the pore diameter is 5-10nm, and the pore volume 0.5cm ³ .g ^-1 -1.5cm ³ .g ^-1 .

The preparation method of described cracking catalyst comprises the steps:

Step 1, synthesizing a mesoporous silica material, which is a template in the preparation method;

Step 2, stirring the mesoporous silica material, the precursor of Fe and the precursor of Ni in ethanol or acetone and then placing it in a fume hood to air-dry to obtain the first powder;

Step 3, after the first powder and the fatty acid are fully ground in a mortar, they are placed in a tube furnace and calcined at a high temperature under a nitrogen atmosphere to obtain a second powder;

Step 4, soaking the second powder in NaOH solution, etching and removing the mesoporous silica material to obtain a third powder;

Step 5, filtering, washing and drying the third powder, which is the biomass gasification tar cracking catalyst prepared by this method.

Wherein, the mesoporous silica material is SBA-15 with hexagonal large pore size, SBA-3 with small hexagonal pore size, KIT-6 with three-dimensional cubic macropore structure, FDU-5 with double continuous cubic structure and face centered cubic structure Any one or a mixture of at least two of the FDU-12.

Wherein, the fatty acid is any one or a mixture of at least two of soybean oil, corn oil, peanut oil, sunflower oil, and rapeseed oil.

Wherein, the iron precursor is either FeCl ₃ ·6H ₂ O or Fe(NO ₃ ) ₃ ·9H ₂ O or a mixture of both; the nickel precursor is NiCl ₂ ·6H ₂ O Or any one of Ni(NO ₃ ) ₂ ·6H ₂ O or a mixture of both.

Wherein, the grinding time is 0.5-8h, the mass ratio of the silica mesoporous material to the fatty acid is 0.2-2, and the molar ratio of the Fe precursor to the Ni precursor is 0.05 -15.

Wherein, the temperature of the high-temperature calcination is 500-1200°C, the holding time is 1-12h, and the heating rate is 1-15°C·min ^-1 .

Wherein, the concentration of the NaOH solution is 1-6 mol·L ^-1 , and the etching time is 10-30 h.

The specific surface area and pore volume of the cracking catalyst adopted in the present invention are large, and the pore diameter is uniform. The iron-nickel alloy is used as the active component, which can exert the synergistic effect of the metal catalyst, and effectively solves the problem that nickel is easily deactivated when nickel exists alone. The iron-nickel alloy Embedded on graphitized mesoporous carbon, covered by graphitized mesoporous carbon, as the reaction progresses, increasing carbon deposits fall on the graphite mesoporous carbon, without direct contact with the active components, so that the active components are free from Covered by carbon deposits, thus increasing the service life of the catalyst. The cracking catalyst adopted in the invention can obtain a higher tar removal rate at a lower reaction temperature, and can also increase the calorific value and output of the gas, and the conversion rate of the tar can reach more than 99%.

Biochar has shown great application potential in increasing crop yield, enhancing soil nutrients, increasing soil fertility, improving and repairing soil structure, remediating polluted environment and reducing greenhouse gas emissions. It has aroused widespread concern in today's society.

Biochar has a huge surface area and numerous small pore structures. This pore structure is easier to gather and absorb nutrients and promote the growth of beneficial microorganisms, thereby making the soil more fertile and conducive to the growth of plants and achieving sustainable development. green agriculture. Therefore, biochar can not only reduce greenhouse gases, such as methane, nitrous oxide and carbon dioxide emissions, but also play a positive role in improving soil health, reducing nutrient loss, restoring soil fertility, improving fertilizer use efficiency, and increasing soil productivity.

Biochar is rich in voids and organic macromolecular structures. When it is combined with fertilizers, it is easier to form large aggregates in the soil, which improves the adsorption and retention of nutrient ions in the soil, and the NH ₄ ⁺ adsorption in the soil The immobilization effect can be significantly enhanced, and the nitrogen utilization rate of crops can be improved, thereby reducing nitrogen loss. In addition, after a certain period of time in the soil, the surface of biochar will be slightly oxidized to form carbonyl groups, phenolic groups, etc., which will help increase the cation exchange capacity of the soil. Biochar has strong adsorption characteristics for NH ₄ ⁺ and N0 ₃ ^- , so it can retain nitrogen in the soil, effectively reduce the volatilization of ammonia in farmland soil and control the leaching and leaching of soil nitrogen nutrients. These characteristics make biochar It can effectively reduce the loss of nitrogen nutrient in the farmland soil, increase the yield of crops, and reduce the amount of chemical fertilizer application and non-point source pollution caused by the loss of nitrogen nutrient in the farmland.

Biochar contains a variety of rich ash elements, which can be absorbed and utilized by crops as soluble nutrients in the soil, thereby increasing soil organic matter content and soil carbon retention capacity, and biochar itself can also be used as fertilizer to improve soil fertility. The rich ash elements contained in biochar, such as K, Ca, Mg, etc., are in a soluble state, and become soluble base ions in the solution after entering the soil, increasing the base saturation of the soil, reducing its exchangeable acid and exchangeable aluminum. It is beneficial to increase the exchange capacity of other cations, reduce the activation of aluminum ions, and reduce the saturation of aluminum in acidic soil, thereby increasing the pH value of the soil. Excessive aluminum ions in soil will have adverse effects on plant growth and soil microbial activities.

The surface of biochar has a large number of negative charges, a large number of pore structures and a huge specific surface area, which have varying degrees of influence on the chemical and physical properties of the soil, and is effective for soil polar or non-polar organic compounds and soil. Water, soil nutrients or inorganic ions in sediments all have strong adsorption capacity. After biochar is applied to the soil, its porous structure is conducive to the maintenance of soil water, and the water retention of the soil is enhanced. After a large amount of biochar is applied to the soil, the field water holding capacity will be 18% higher than that of the surrounding control soil . After the biochar is added to the soil, the soil aeration and porosity are improved, so that the soil has a good farming structure. Provide more living space for microorganisms, which is conducive to the growth of aerobic microorganisms in the soil, improves the mineralization process of organic matter in the soil, increases soil fertility and effective nutrient content, and is conducive to promoting the absorption of nutrients by plants and the improvement of soil quality. Aggregate formation.

Biochar has good chemical properties, physical structure and nutrient regulation, and has a strong adsorption effect on the exchangeable nutrients in the soil. The reasonable application of biochar and fertilizer can enhance the adsorption and fixation of ammonium nitrogen in the soil, improve the utilization efficiency of nutrients by plants, especially increase the utilization efficiency of nitrogen by crops, and reduce the volatilization of nitrogen in the field. The soil applied with black carbon is more likely to form larger aggregates, which makes it easier for nutrient ions to adsorb on the surface and pores of biochar, which is especially beneficial to the adsorption of ammonium nitrogen ions. The adsorption of black carbon is beneficial to the utilization of adsorbed nutrients by plants, which can significantly promote seed germination and growth, thereby promoting crop growth.

Biochar is rich in organic matter. Applying biochar to the soil can increase the content of organic matter in the soil, and ultimately increase the content of cations and exchangeable cations that can be used by plants. The addition of biochar stimulates the soil organic matter, which is beneficial to the decomposition of the original organic matter in the soil, further improves the fertility of the soil, coordinates the ability of the soil to supply and retain fertilizer, and ensures that plants have sufficient nutrient supply.

To sum up, the characteristics of biochar, such as porosity, huge specific surface area, surface negative charge and charge density, enable it to absorb and hold nutrients in fertilizers, realize its slow release effect, significantly reduce soil N loss, and improve Soil fertility promotes crop yield and maintains the balance of soil ecosystem.

At present, the activation method of biochar mainly adopts chemical activation method. Chemical activation is divided into: acid activation (mainly phosphoric acid, sulfuric acid activation), alkali activation (mainly potassium hydroxide, sodium hydroxide activation), salt activation (mainly activation zinc chloride activation). Salt activation has the advantages of low activation temperature and simple process.

Preferably, the step (1') is further included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to At room temperature, the product is pickled, washed with water until neutral and then dried; the activator is potassium carbonate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, potassium acetate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and ammonium acetate at least one of; the weight ratio of the biochar to the activator is 100:1-5; the inert atmosphere used is nitrogen, and the flow rate is 100-400mL/min; the heating rate is 2-10°C/min; activation The temperature is 300-600°C; the activation treatment holding time is 1-3h; the acid used for pickling is dilute hydrochloric acid.

Activated carbon is obtained by activating biomass charcoal. Activated carbon is a loose porous substance with high specific surface area and high adsorption characteristics. The growth of beneficial microorganisms makes the soil more fertile, which is conducive to the growth of plants. Applying activated carbon to the soil can improve the physical structure and chemical composition of the soil, adjust the application of fertilizers and pesticides, and promote the growth of plants. Activated carbon can increase the biologically fixed nitrogen in the soil, and quickly convert organic nitrogen into ammonia and nitrate, thus acting as a fertilizer.

Preferably, in the step (2), the melting temperature is 125-128°C; in the step (3), the particle size of the screened pellets is 1-4.75mm; in the step (4), The net weight of the package is ≥25Kg and ≤50Kg.

Preferably, the soil conditioner also includes the following raw materials in parts by weight: 1-5 parts of phosphate ester, 1-5 parts of citric acid, 2-6 parts of potassium chloride, 1-3 parts of sodium acrylate, 2-4 parts of magnesium oxide 1-3 parts of copper sulfate, 1-3 parts of ferrous sulfate, 0.1-0.5 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0.5-1.5 parts of potassium humate, 0.5-1.5 parts of dicyandiamide, 8-12 parts of kaolin 6-10 parts of medical stone, 4-8 parts of anthracite.

The soil conditioner of the present invention adopts the above-mentioned raw materials and strictly controls the weight ratio of each raw material, and the prepared soil conditioner can break soil compaction, loosen soil, improve soil air permeability, reduce soil bulk density, promote soil microbial activity, and strengthen soil Fertilizer and water penetration; it can improve soil and control deserts. Conserve water and fight drought, enhance crop disease resistance, increase crop yield, improve the quality of agricultural products, restore the original ecology of crops and other functions, greatly increase the survival rate of tree planting and the output of agricultural products; improve the quality of agricultural and forestry products, and restore the natural appearance of agricultural and forestry products.

Preferably, the compound amino acid solution is a vegetable protein hydrolyzate, which contains a mixture of 18 kinds of amino acids after hydrolysis of plant protein in any proportion, and the amino acid content in the plant protein hydrolyzate is 10-20%.

By adopting the compound amino acid liquid, the invention can provide the amino acid nutrients needed for crop growth and promote the growth of crops.

Preferably, the superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid and acrylamide, wherein the weight percentage of high pullulan is 10-30%, the weight percentage of acrylic acid is 30-70%, propylene The weight percentage of amides is 20-40%.

The present invention adopts the water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid and acrylamide as the super-absorbent resin, which not only has strong absorbability to distilled water, but also has strong adsorption force to ion-containing water (such as tap water). In addition, the water-absorbing resin can repeatedly discharge and absorb water. The water absorption of this resin to distilled water is greater than 300 grams of water/gram resin, and the water absorption to tap water is greater than 150 grams of water/gram resin, and the decline of water absorption after 5 times of water absorption-drying is less than 10%, more preferably less than 5% water-absorbing resin is the main component that plays water absorption and water retention in the present invention.

Preferably, the composite bacterial agent includes the following components: 100-300 million cfu/g of Bacillus subtilis, 0.5-150 million cfu/g of Bacillus coliformis, 0.2-080 million cfu/g of silicate bacteria, and 0.2-080 million cfu/g of Bacillus licheniformis Bacillus 0.5-150 million cfu/g and Streptomyces hygroscopicus 0.2-080 million cfu/g.

By adopting the above-mentioned components and strictly controlling the content of each component, the composite bacterial agent of the present invention can improve the composition of soil microbial flora, enhance the microbial activity in the rhizosphere of crops, accelerate the mineralization of organic pollutants, and promote the growth of plants at the same time , Accelerate the absorption of degradation products and bioremediation of polluted soil.

Another object of the present invention is achieved through the following technical solutions: a bamboo biomass charcoal-based soil conditioner, the bamboo biomass charcoal-based urea is prepared according to the above-mentioned preparation method.

The bamboo biomass charcoal-based soil conditioner of the present invention utilizes the physical properties of bamboo biomass charcoal to realize effective slow release of the soil conditioner, prolong the action time of the soil conditioner, and improve the utilization rate of the soil conditioner , provide long-term and sufficient nutrient supply for crops during the growth period, and provide good technical support for crop nutrient enhancement.

The bamboo biomass charcoal-based soil conditioner of the present invention is applied to various food crops such as corn, soybean, and rice, vegetables, and fruit trees. It can realize the need for topdressing in the later stage of one-time fertilization, effectively improve the level of effective components in the soil, and increase the nutritional content of crop grains. The content and output of the fertilizer are significantly improved, the fertilizer effect is durable, and the production and income are increased.

The beneficial effect of the present invention is that: the preparation method of the present invention prepares bamboo biomass charcoal from waste resource bamboo, and then mixes it with soil conditioner to prepare bamboo biomass charcoal-based soil conditioner, which greatly reduces production costs and Environmental pollution can bring good social and economic benefits and the value of popularization and application.

The preparation method of the invention has the advantages of simple process, convenient operation and control, stable quality, high production efficiency and large-scale industrial production.

The bamboo biomass charcoal-based soil conditioner of the present invention is added with biomass charcoal, and the biomass charcoal is slightly alkaline, porous, loose and rich in a carbonaceous mixture of various organic matter components with different structures, and has good physical properties and nutrient regulation, increase the availability of nutrients in the soil, especially nitrogen fertilizers, effectively reduce the emission of soil nitrous oxide, and effectively increase the storage of organic carbon in the soil.

The bamboo biomass charcoal-based soil conditioner of the present invention utilizes the physical properties of bamboo biomass charcoal to realize effective slow release of the soil conditioner, prolong the action time of the soil conditioner, and improve the utilization rate of the soil conditioner , provide long-term and sufficient nutrient supply for crops during the growth period, and provide good technical support for crop nutrient enhancement.

The bamboo biomass charcoal-based soil conditioner of the present invention is rich in nutrients, coordinated and long-lasting release of nutrient elements, high in fertilizer nutrient utilization efficiency, can effectively improve and fertilize soil, improve fertilizer utilization rate, increase soil organic matter content, and reduce soil bulk density , improve soil water and fertilizer retention capacity, promote crop growth, and can significantly increase crop yield, improve crop quality, and have obvious economic benefits.

The bamboo biomass charcoal-based soil conditioner of the present invention is applied to various food crops such as corn, soybean, and rice, vegetables, and fruit trees. It can realize the need for topdressing in the later stage of one-time fertilization, effectively improve the level of effective components in the soil, and increase the nutritional content of crop grains. The content and output of the fertilizer are significantly improved, the fertilizer effect is durable, and the production and income are increased.

The present invention combines biomass charcoal and soil conditioner to produce bamboo biomass charcoal-based soil conditioner, which can not only realize waste resource utilization, but also achieve energy saving and emission reduction, increase soil carbon sink, and improve crop yield and quality. Effect.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the examples, and the contents mentioned in the embodiments are not intended to limit the present invention.

Example 1

A preparation method of bamboo biomass charcoal-based soil conditioner, comprising the following steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with bamboo biomass charcoal accounting for 16% of the total weight of the soil conditioner raw materials, melt and granulate, and collect the pellets; wherein, the heat required for melting is burned by the combustible gas supply;

The soil conditioner includes the following raw materials in parts by weight: 10 parts of livestock manure, 5 parts of phosphate rock powder, 6 parts of chitosan, 4 parts of compound amino acid solution, 1 part of superabsorbent resin, and 0.5 part of composite bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The step (1) specifically includes: crushing the bamboo to a particle size of 1mm, drying the crushed bamboo until the water content is less than 5%, and obtaining the biomass material; putting the cracking catalyst and the biomass material in a weight ratio of 0.5:100 into High-temperature pyrolysis is carried out in the high-temperature pyrolysis furnace to obtain bamboo biomass charcoal and combustible gas; wherein, the temperature of high-temperature pyrolysis is 500°C, and the time of high-temperature pyrolysis is 60 minutes.

The cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 30% of the mass of the catalyst, and the morphology of the cracking catalyst is as follows: The iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 400m ² .g ^-1 , the pore diameter is 5nm, and the pore volume is 0.5cm ³ .g ^-1 .

The step (1') is also included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to room temperature, The product is acid-washed, then washed to neutrality and then dried; the activator is potassium carbonate; the weight ratio of the biochar to the activator is 100:1; the inert atmosphere used is nitrogen, and the flow rate is 100mL/min ; The heating rate is 4°C/min; the activation temperature is 300°C; the activation treatment holding time is 3h; the acid used for pickling is dilute hydrochloric acid.

In the step (2), the melting temperature is 125°C; in the step (3), the particle size of the screened pellets is 1mm; in the step (4), the net weight of the package is ≥25Kg and ≤50Kg .

The soil conditioner also includes the following raw materials in parts by weight: 1 part of phosphoric acid ester, 1 part of citric acid, 2 parts of potassium chloride, 1 part of sodium acrylate, 2 parts of magnesium oxide, 1 part of copper sulfate, 1 part of ferrous sulfate, Fatty alcohol polyoxyethylene ether sodium sulfate 0.1 part, potassium humate 0.5 part, dicyandiamide 0.5 part, kaolin 8 parts, medical stone 6 parts, anthracite 4 parts.

The compound amino acid solution is a plant protein hydrolyzate, which contains a mixture of 18 kinds of amino acids in any proportion after plant protein hydrolyzation, and the amino acid content in the plant protein hydrolyzate is 10%.

The superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid and acrylamide, wherein the weight percentage of high pullulan is 10%, the weight percentage of acrylic acid is 70%, and the weight percentage of acrylamide is 20% .

The composite microbial agent includes the following components: 100 million cfu/g of Bacillus subtilis, 50 million cfu/g of Bacillus coliformis, 200 million cfu/g of silicate bacteria, 50 million cfu/g of Bacillus licheniformis and thorns Streptomyces hygroscopicus 20 million cfu/g.

A bamboo biomass charcoal-based soil conditioner is prepared according to the above-mentioned preparation method.

The bamboo biomass charcoal-based soil conditioner and the conventional soil conditioner prepared in this example were respectively applied to the cornfield for testing. The yield of corn increased by 152 kg per mu, an increase of 19%. After testing by the Nutrient Monitoring Center, the nutritional content of corn increased by about 2%.

Example 2

A preparation method of bamboo biomass charcoal-based soil conditioner, comprising the following steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with bamboo biomass charcoal accounting for 17% of the total weight of the soil conditioner, then melt and granulate, and collect the pellets; wherein, the heat required for melting is burned by the combustible gas supply;

The soil conditioner includes the following raw materials in parts by weight: 12 parts of livestock and poultry manure, 7 parts of phosphate rock powder, 7 parts of chitosan, 5 parts of compound amino acid solution, 1.5 parts of superabsorbent resin, and 0.7 parts of composite bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The step (1) specifically includes: pulverizing the bamboo to a particle size of 1.2mm, drying the pulverized bamboo until the water content is less than 5%, and obtaining the biomass material; putting the cracking catalyst and the biomass material at a weight ratio of 0.7:100 Put it into a high-temperature pyrolysis furnace for high-temperature pyrolysis to obtain bamboo biomass charcoal and combustible gas; wherein, the temperature of high-temperature pyrolysis is 550° C., and the time of high-temperature pyrolysis is 75 minutes.

The cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 32% of the mass of the catalyst, and the morphology of the cracking catalyst is as follows: The iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 450m ² .g ^-1 , the pore diameter is 6nm, and the pore volume is 0.7cm ³ .g ^-1 .

The step (1') is also included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to room temperature, The product is pickled, washed with water until neutral and then dried; the activator is dipotassium hydrogen phosphate; the weight ratio of the biochar to the activator is 100:2; the inert atmosphere used is nitrogen, and the flow rate is 200mL /min; the heating rate is 5°C/min; the activation temperature is 350°C; the activation treatment holding time is 2.5h; the acid used for pickling is dilute hydrochloric acid.

In the step (2), the melting temperature is 126°C; in the step (3), the particle size of the screened pellets is 2mm; in the step (4), the net weight of the package is ≥25Kg and ≤50Kg .

The soil conditioner also includes the following raw materials in parts by weight: 2 parts of phosphoric acid ester, 2 parts of citric acid, 3 parts of potassium chloride, 1.5 parts of sodium acrylate, 2.5 parts of magnesium oxide, 1.5 parts of copper sulfate, 1.5 parts of ferrous sulfate, 0.2 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0.7 parts of potassium humate, 0.7 parts of dicyandiamide, 9 parts of kaolin, 7 parts of medical stone, and 5 parts of anthracite.

The compound amino acid solution is a plant protein hydrolyzate, which contains a mixture of 18 kinds of amino acids in any proportion after plant protein hydrolyzation, and the amino acid content in the plant protein hydrolyzate is 12%.

The superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid, and acrylamide, wherein the weight percentage of high pullulan is 15%, the weight percentage of acrylic acid is 60%, and the weight percentage of acrylamide is 25%. .

The composite microbial agent includes the following components: 150 million cfu/g of Bacillus subtilis, 70 million cfu/g of Bacillus coliformis, 040 million cfu/g of silicate bacteria, 70 million cfu/g of Bacillus licheniformis and thorns Streptomyces hygroscopicus 040 million cfu/g.

A bamboo biomass charcoal-based soil conditioner is prepared according to the above-mentioned preparation method.

The bamboo biochar-based soil conditioner and the conventional soil conditioner prepared in this example were applied to the soybean field for testing respectively. Under the condition of equal fertilizer consumption, the bamboo biochar-based soil conditioner was more effective than the conventional soil conditioner per The yield per mu increased by 52.5 kg of soybeans, an increase of 21%. After testing by the Nutrient Monitoring Center, the nutritional content of soybeans increased by about 4%.

Example 3

A preparation method of bamboo biomass charcoal-based soil conditioner, comprising the following steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with bamboo biomass charcoal accounting for 18% of the total raw material weight of the soil conditioner, melt and granulate, and collect the pellets; wherein, the heat required for melting is burned by the combustible gas supply;

The soil conditioner includes the following raw materials in parts by weight: 18 parts of livestock and poultry manure, 10 parts of phosphate rock powder, 8 parts of chitosan, 6 parts of compound amino acid solution, 2 parts of superabsorbent resin, and 1 part of composite bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The step (1) specifically includes: pulverizing the bamboo to a particle size of 1.5mm, drying the pulverized bamboo until the water content is less than 5%, and obtaining the biomass material; putting the cracking catalyst and the biomass material at a weight ratio of 1:100 Put it into a high-temperature pyrolysis furnace for high-temperature pyrolysis to obtain bamboo biomass charcoal and combustible gas; wherein, the temperature of high-temperature pyrolysis is 600° C., and the time of high-temperature pyrolysis is 90 minutes.

The cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 35% of the mass of the catalyst, and the morphology of the cracking catalyst is as follows: The iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 500m ² .g ^-1 , the pore diameter is 7nm, and the pore volume is 1cm ³ .g ^-1 .

The step (1') is also included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to room temperature, The product is pickled, washed with water until neutral and then dried; the activator is potassium dihydrogen phosphate; the weight ratio of the biochar to the activator is 100:3; the inert atmosphere used is nitrogen, and the flow rate is 300mL /min; the heating rate is 6°C/min; the activation temperature is 400°C; the activation treatment holding time is 2h; the acid used for pickling is dilute hydrochloric acid.

In the step (2), the melting temperature is 126°C; in the step (3), the particle size of the screened pellets is 3mm; in the step (4), the net weight of the package is ≥25Kg and ≤50Kg .

The soil conditioner also includes the following raw materials in parts by weight: 3 parts of phosphoric acid ester, 3 parts of citric acid, 4 parts of potassium chloride, 2 parts of sodium acrylate, 3 parts of magnesium oxide, 2 parts of copper sulfate, 2 parts of ferrous sulfate, Fatty alcohol polyoxyethylene ether sodium sulfate 0.3 parts, potassium humate 1 part, dicyandiamide 1 part, kaolin 10 parts, medical stone 8 parts, anthracite 6 parts.

The compound amino acid solution is a plant protein hydrolyzate, which contains a mixture of 18 kinds of amino acids in any proportion after plant protein hydrolyzation, and the amino acid content in the plant protein hydrolyzate is 15%.

The superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid, and acrylamide, wherein the weight percentage of high pullulan is 20%, the weight percentage of acrylic acid is 50%, and the weight percentage of acrylamide is 30%. .

The composite bacterial agent includes the following components: 200 million cfu/g of Bacillus subtilis, 100 million cfu/g of Bacillus coliformis, 50 million cfu/g of silicate bacteria, 100 million cfu/g of Bacillus licheniformis and thorns Streptomyces hygroscopicus 50 million cfu/g.

A bamboo biomass charcoal-based soil conditioner is prepared according to the above-mentioned preparation method.

The bamboo biomass charcoal-based soil conditioner and conventional soil conditioner prepared in this example were applied to the paddy field respectively for testing. The yield of rice increased by 138 kg per mu, which is an increase of 23%. After testing by the Nutrient Monitoring Center, the nutrient content in rice increased by about 6%.

Example 4

A preparation method of bamboo biomass charcoal-based soil conditioner, comprising the following steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with bamboo biomass charcoal accounting for 19% of the total weight of the soil conditioner raw materials, melt and granulate, and collect the pellets; wherein, the heat required for melting is burned by the combustible gas supply;

The soil conditioner includes the following raw materials in parts by weight: 18 parts of livestock manure, 13 parts of phosphate rock powder, 9 parts of chitosan, 7 parts of compound amino acid solution, 2.5 parts of superabsorbent resin, and 1.3 parts of composite bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The step (1) specifically includes: crushing the bamboo to a particle size of 1.8mm, drying the crushed bamboo until the water content is less than 5%, and obtaining the biomass material; putting the cracking catalyst and the biomass material at a weight ratio of 1.3:100 Put it into a high-temperature pyrolysis furnace for high-temperature pyrolysis to obtain bamboo biomass charcoal and combustible gas; wherein, the temperature of high-temperature pyrolysis is 650° C., and the time of high-temperature pyrolysis is 105 minutes.

The cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 38% of the mass of the catalyst, and the morphology of the cracking catalyst is as follows: The iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 550m ² .g ^-1 , the pore diameter is 8nm, and the pore volume is 1.3cm ³ .g ^-1 .

The step (1') is also included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to room temperature, The product is acid-washed, then washed to neutrality and then dried; the activator is potassium acetate; the weight ratio of the biochar to the activator is 100:4; the inert atmosphere used is nitrogen, and the flow rate is 400mL/min ; The heating rate is 7°C/min; the activation temperature is 450°C; the activation treatment holding time is 1.5h; the acid used for pickling is dilute hydrochloric acid.

In the step (2), the melting temperature is 127°C; in the step (3), the particle size of the screened pellets is 4mm; in the step (4), the net weight of the package is ≥25Kg and ≤50Kg .

The soil conditioner also includes the following raw materials in parts by weight: 4 parts of phosphoric acid ester, 4 parts of citric acid, 5 parts of potassium chloride, 2.5 parts of sodium acrylate, 3.5 parts of magnesium oxide, 2.5 parts of copper sulfate, 2.5 parts of ferrous sulfate, Fatty alcohol polyoxyethylene ether sodium sulfate 0.4 parts, potassium humate 1.3 parts, dicyandiamide 1.3 parts, kaolin 11 parts, medical stone 9 parts, anthracite 7 parts.

The compound amino acid solution is a plant protein hydrolyzate, which contains a mixture of 18 kinds of amino acids in any proportion after plant protein hydrolyzation, and the amino acid content in the plant protein hydrolyzate is 18%.

The superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid, and acrylamide, wherein the weight percentage of high pullulan is 25%, the weight percentage of acrylic acid is 40%, and the weight percentage of acrylamide is 35%. .

The composite bacterial agent includes the following components: 250 million cfu/g of Bacillus subtilis, 130 million cfu/g of Bacillus coliformis, 0.6 billion cfu/g of silicate bacteria, 0.13 billion cfu/g of Bacillus licheniformis and Streptomyces hygroscopicus 70 million cfu/g.

A bamboo biomass charcoal-based soil conditioner is prepared according to the above-mentioned preparation method.

The bamboo biomass charcoal-based soil conditioner and conventional soil conditioner prepared in this example were applied to the rapeseed field respectively for testing. Increase the yield of rapeseed by 33 kg per mu, an increase of 22%. After testing by the Nutrient Monitoring Center, the nutrient content in rapeseed has increased by about 5%.

Example 5

A preparation method of bamboo biomass charcoal-based soil conditioner, comprising the following steps:

(1) pyrolyze bamboo to obtain bamboo biomass charcoal and combustible gas;

(2) Mix the raw materials of the soil conditioner with bamboo biomass charcoal accounting for 20% of the total weight of the soil conditioner raw materials, melt and granulate, and collect the pellets; wherein, the heat required for melting is burned by the combustible gas supply;

The soil conditioner includes the following raw materials in parts by weight: 20 parts of livestock manure, 15 parts of phosphate rock powder, 10 parts of chitosan, 8 parts of compound amino acid solution, 3 parts of superabsorbent resin, and 1.5 parts of composite bacterial agent;

(3) Cool the collected pellets under negative pressure for screening;

(4) Coat the screened pellets, pack and ship, and prepare a bamboo biochar-based soil conditioner.

The step (1) specifically includes: pulverizing the bamboo to a particle size of 2mm, drying the pulverized bamboo until the water content is less than 5%, and obtaining the biomass material; putting the cracking catalyst and the biomass material in a weight ratio of 1.5:100 into High-temperature pyrolysis is carried out in the high-temperature pyrolysis furnace to obtain bamboo biomass charcoal and combustible gas; wherein, the temperature of high-temperature pyrolysis is 700°C, and the time of high-temperature pyrolysis is 120 minutes.

The cracking catalyst uses graphitized mesoporous carbon as a catalyst carrier and an iron-nickel alloy as an active component, wherein the mass of the iron-nickel alloy accounts for 40% of the mass of the catalyst, and the morphology of the cracking catalyst is as follows: The iron-nickel alloy is embedded on the graphitized mesoporous carbon, the specific surface area of the cracking catalyst is 600m ² .g ^-1 , the pore diameter is 10nm, and the pore volume is 1.5cm ³ .g ^-1 .

The step (1') is also included between the step (1) and the step (2): mixing the bamboo biomass charcoal with an activator, raising the temperature to the activation temperature in an inert atmosphere for activation treatment, and then cooling to room temperature, The product is acid-washed, then washed to neutrality and then dried; the activator is diammonium hydrogen phosphate; the weight ratio of the biochar to the activator is 100:5; the inert atmosphere used is nitrogen, and the flow rate is 500mL /min; the heating rate is 8°C/min; the activation temperature is 500°C; the activation treatment holding time is 1h; the acid used for pickling is dilute hydrochloric acid.

In the step (2), the melting temperature is 128°C; in the step (3), the particle size of the screened pellets is 4.75mm; in the step (4), the net weight of the package is ≥25Kg, and ≤ 50Kg.

The soil conditioner also includes the following raw materials in parts by weight: 5 parts of phosphoric acid ester, 5 parts of citric acid, 6 parts of potassium chloride, 3 parts of sodium acrylate, 4 parts of magnesium oxide, 3 parts of copper sulfate, 3 parts of ferrous sulfate, Fatty alcohol polyoxyethylene ether sodium sulfate 0.5 parts, potassium humate 1.5 parts, dicyandiamide 1.5 parts, kaolin 12 parts, medical stone 10 parts, anthracite 8 parts.

The compound amino acid solution is a plant protein hydrolyzate, which contains a mixture of 18 kinds of amino acids in any proportion after plant protein hydrolyzate, and the amino acid content in the plant protein hydrolyzate is 20%.

The superabsorbent resin is a water-absorbent resin formed by graft polymerization of high pullulan, acrylic acid, and acrylamide, wherein the weight percentage of high pullulan is 30%, the weight percentage of acrylic acid is 30%, and the weight percentage of acrylamide is 40%. .

The composite microbial agent includes the following components: 300 million cfu/g of Bacillus subtilis, 150 million cfu/g of Bacillus coliformis, 80 million cfu/g of silicate bacteria, 150 million cfu/g of Bacillus licheniformis and thorn sporosum Streptomyces hygroscopicus 80 million cfu/g.

A bamboo biomass charcoal-based soil conditioner is prepared according to the above-mentioned preparation method.

The bamboo biomass charcoal-based soil conditioner and the conventional soil conditioner prepared in this example were respectively applied in apple orchards for testing. The yield of apples increased by 360 kg per mu, an increase of 18%. After testing by the Nutrient Monitoring Center, the nutritional content of apples increased by about 3%.

The bamboo biomass charcoal-based soil conditioner of the present invention can realize that topdressing is not required in the later stage of one-time fertilization, effectively improves the level of effective components in the soil, significantly improves the content and yield of crop grain nutrient components, has lasting fertilizer effect, and increases production and income.

The above-mentioned embodiments are preferred implementation solutions of the present invention. In addition, the present invention can also be realized in other ways, and any obvious replacements are within the protection scope of the present invention without departing from the concept of the present invention.

Claims (10)

1. a preparation method for bamboo quality of biomass charcoal base soil conditioner, is characterized in that: comprise the steps:

(1) by bamboo Pintsch process, bamboo quality of biomass charcoal and inflammable gas is obtained;

(2) by the raw material of soil conditioner and the rear melting of bamboo quality of biomass charcoal mixing, the granulation that account for soil conditioner total raw material weight 16-20%, pellet is collected; Wherein, the heat needed for melting is burnt by described inflammable gas to be provided;

Described soil conditioner comprises the raw material of following weight part: feces of livestock and poultry 10-20 part, ground phosphate rock 5-15 part, chitosan 6-10 part, Moriamin S 4-8 part, High hydrophilous resin 1-3 part, composite fungus agent 0.5-1.5 part;

(3) the pellet lost pressure cooling will collected, screens;

(4) pellet after screening is carried out coating, packaging shipment, obtained bamboo quality of biomass charcoal base soil conditioner.

2. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, it is characterized in that: described step (1) is specially: bamboo is crushed to particle diameter 1-2mm, bamboo after pulverizing is dried to water ratio and is less than 5%, obtain biomass material; Catalyst for cracking and biomass material are put into the cracking of high temperature pyrolysis stove by weight 0.5-1.5:100 and carries out Pintsch process, obtain bamboo quality of biomass charcoal and inflammable gas; Wherein, the temperature of Pintsch process is 500-700 DEG C, and the time of Pintsch process is 60-120min.

3. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 2, it is characterized in that: described catalyst for cracking with greying mesoporous carbon for support of the catalyst, take iron-nickel alloy as active ingredient, wherein, the quality of described iron-nickel alloy accounts for the 30-40% of described catalyst quality, the pattern of described catalyst for cracking is that described iron-nickel alloy is embedded in described greying mesoporous carbon, and the specific surface area of described catalyst for cracking is 400m ².g ^-1-600m ².g ^-1, aperture is 5-10nm, and pore volume is 0.5cm ³.g ^-1-1.5cm ³.g ^-1.

4. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, it is characterized in that: also comprise step (1 ') between described step (1) and step (2): by bamboo quality of biomass charcoal and activator mix, be warming up to activation temperature in an inert atmosphere and carry out activation treatment, then room temperature is cooled to, pickling is carried out to product, then is washed to neutral rear dry; Described activator is at least one in salt of wormwood, dipotassium hydrogen phosphate, potassium primary phosphate, Potassium ethanoate, Secondary ammonium phosphate, primary ammonium phosphate and ammonium acetate; The weight ratio of described biomass charcoal and described activator is 100:1-5; Inert atmosphere used is nitrogen, and flow is 100-500mL/min; Temperature rise rate is 4-8 DEG C/min; Activation temperature is 300-500 DEG C; Activation treatment soaking time is 1-3h; Pickling acid used is dilute hydrochloric acid.

5. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, it is characterized in that: in described step (2), the temperature of melting is 125-128 DEG C; In described step (3), the particle diameter of the pellet after screening is 1-4.75mm; In described step (4), packaging net weight >=25Kg, and≤50Kg.

6. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, is characterized in that: described soil conditioner also comprises the raw material of following weight part: phosphoric acid ester 1-5 part, citric acid 1-5 part, Repone K 2-6 part, sodium acrylate 1-3 part, magnesium oxide 2-4 part, copper sulfate 1-3 part, ferrous sulfate 1-3 part, polyoxyethylenated alcohol sodium sulfate 0.1-0.5 part, potassium humate 0.5-1.5 part, Dyhard RU 100 0.5-1.5 part, kaolin 8-12 part, medical stone 6-10 part, hard coal 4-8 part.

7. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, it is characterized in that: described Moriamin S is hydrolytic liquid of plant protein, hydrolytic liquid of plant protein contains the mixture of the arbitrary proportion of 18 seed amino acids after vegetable-protein hydrolysis, and in hydrolytic liquid of plant protein, amino acid whose content is 10-20%.

8. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, it is characterized in that: described High hydrophilous resin is the water-absorbing resin be polymerized by high amylopectin starch, vinylformic acid, acrylamide graft, wherein, the weight percent of high amylopectin starch is 10-30%, acrylic acid weight percent is 30-70%, and the weight percent of acrylamide is 20-40%.

9. the preparation method of a kind of bamboo quality of biomass charcoal base soil conditioner according to claim 1, is characterized in that: described composite fungus agent comprises following component: subtilis 1-3 hundred million cfu/g, colloid bacillus cereus 0.5-1.5 hundred million cfu/g, silicate bacteria 0.2-0.8 hundred million cfu/g, Bacillus licheniformis 0.5-1.5 hundred million cfu/g and Streptomyces hygrospinosus 0.2-0.8 hundred million cfu/g.

10. a bamboo quality of biomass charcoal base soil conditioner, is characterized in that: the preparation method of described bamboo quality of biomass charcoal base soil conditioner according to any one of claim 1-9 obtains.