阅读说明：本技术 一种竹炭高效粉状肥及制备方法 (Bamboo charcoal efficient powdery fertilizer and preparation method thereof ) 是由 宋永平 万云林 于 2021-10-19 设计创作，主要内容包括：本发明公开了一种竹炭高效粉状肥,其组份按质量百分比如下：竹炭粉30%-50%,发酵豆粕10%-20%,氨基酸35%-45%,大量元素3%-6%,海泡石5%-8%,秸秆粉2%-3%,人畜粪便1%-2%,利用竹炭粉具有疏松多孔的结构,分子细密多孔,质地坚硬,有很强的吸附能力,能够较好的储水并达到大量元素缓慢释放的效果；利用氨基酸促进植株生长发育、增强抗逆性、改善土壤状况；利用发酵豆粕产生益生菌、谷氨酸、等物质,改善土壤中的菌落环境；利用大量元素补充植物生长所需的磷元素和钾元素,提供植物生长所需的元素；利用海泡石吸水变柔软的特性,有效的实现储水效果；利用秸秆粉和人畜粪便补充植物生长所需其他的微量元素。(The invention discloses a bamboo charcoal high-efficiency powdery fertilizer which comprises the following components in percentage by mass: 30-50% of bamboo charcoal powder, 10-20% of fermented soybean meal, 35-45% of amino acid, 3-6% of macroelements, 5-8% of sepiolite, 2-3% of straw powder and 1-2% of human and animal excreta, and the bamboo charcoal powder has a loose and porous structure, fine and porous molecules, hard texture and strong adsorption capacity, and can better store water and achieve the effect of slowly releasing the macroelements; the amino acid is utilized to promote the growth and development of plants, enhance the stress resistance and improve the soil condition; fermented soybean meal is utilized to produce probiotics, glutamic acid and other substances, so that the colony environment in soil is improved; supplementing phosphorus and potassium elements required by plant growth by using macroelements and providing elements required by plant growth; the water storage effect is effectively realized by utilizing the characteristic that sepiolite absorbs water and becomes soft; the straw powder and the human and animal excreta are used for supplementing other trace elements required by plant growth.)

1. A bamboo charcoal high-efficiency powdery fertilizer is characterized in that: the components by mass percent are as follows: 30-50% of bamboo charcoal powder, 10-20% of fermented soybean meal, 35-45% of amino acid, 3-6% of macroelements, 5-8% of sepiolite, 2-3% of straw powder and 1-2% of human and animal excreta.

2. The bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 1, which is characterized in that: the macroelements comprise the following components in percentage by mass: 13-22% of ground phosphate rock, 26-34% of calcium superphosphate, 17-24% of potassium sulfate and 30-40% of plant ash, wherein the ground phosphate rock is gray powder.

3. The bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 1, which is characterized in that: the amino acid is a mixture consisting of glutamine, alanine and histidine, and the molar mass ratio of the glutamic acid to the alanine to the histidine is 5:3: 2.

4. The bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 1, which is characterized in that: the straw powder is at least one of rice straw powder, corn straw powder, barley straw powder and sorghum straw powder, and the particle size of the straw powder is 50-75 mu m.

5. The preparation method of the bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 1, characterized in that: the method comprises the following steps:

s1: preparing materials: cutting bamboos into strips with the length of 20-30 cm, performing high-temperature pyrolysis in a reaction kettle at the temperature of 800-1000 ℃ to generate bamboo charcoal, cooling the bamboo charcoal to room temperature to obtain bamboo charcoal strips, mixing bean pulp and warm water through a mixer, placing the mixture in a fermentation tank, inoculating bacterial powder into the fermentation tank, controlling the fermentation temperature to be 30-32 ℃, and performing anaerobic fermentation for 72-96 hours to obtain fermented bean pulp; crushing the straw raw material into strips with the length of 5cm-10cm by a crusher to obtain straw strips for later use;

s2: drying: drying the fermented soybean meal obtained in the step S1 in a vacuum low-temperature dryer, respectively drying the straw strips and the human and animal excreta under heating of corresponding dryers, and controlling the water content of the fermented soybean meal, the straw strips and the human and animal excreta to be 5-8%;

s3: grinding: grinding the bamboo charcoal strips obtained in the step S1, the fermented soybean meal, the straw strips and the human and animal excreta obtained in the step S2, as well as the sepiolite and the macroelements by corresponding grinders respectively to obtain bamboo charcoal powder, fermented soybean meal powder, macroelement powder, sepiolite powder, straw powder and human and animal excreta powder for later use;

s4: screening: screening the raw materials obtained in the step S3 through a filter screen, respectively placing the screened raw materials in corresponding storage bins for storage, controlling the granularity of each screened component to be 50-75 μm, returning the bamboo charcoal powder, the fermented soybean meal powder, the macroelement powder, the sepiolite powder, the straw powder and the human and animal excrement powder which do not pass the screening to the corresponding grinder in the step S3 for continuous grinding;

s5: weighing: weighing the components in the amino acid according to corresponding mass percentages, weighing the components in the macroelements, and weighing the bamboo charcoal powder, the fermented soybean meal, the macroelements powder, the sepiolite powder, the straw powder and the human and animal excrement powder obtained in the step S3 according to corresponding mass percentages;

s6: mixing: putting the weighed components obtained in the step S5 into a mixer, and controlling the mixing speed of the mixer to be 30-60 r/min to obtain the bamboo charcoal high-efficiency powdery fertilizer;

s7: packaging: the mixture obtained in step S6 is packaged by an automatic packaging machine.

6. The method for preparing the bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 5, wherein the method comprises the following steps: in the step S4, the filter screen is 200-300 meshes, and the screening time is 60-80 min.

7. The method for preparing the bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 5, wherein the method comprises the following steps: the mixer in the step S6 is a ZSH series mixer, and the mixing time is 3h-5 h.

8. The method for preparing the bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 5, wherein the method comprises the following steps: the automatic packaging machine in the step S7 is a DGS series automatic packaging machine, and the packaging specification is 25kg-50 kg.

9. The method for preparing the bamboo charcoal high-efficiency powdery fertilizer as claimed in claim 5, wherein the method comprises the following steps: the environmental humidity in the weighing, mixing and packaging processes of the steps S5-S6 is not more than 5%, and the environmental temperature is 25-30 ℃.

Technical Field

The invention relates to the technical field of fertilizers, in particular to a bamboo charcoal high-efficiency powdery fertilizer, and also relates to a preparation method of the bamboo charcoal high-efficiency powdery fertilizer.

Background

Chemical fertilizers are chemical fertilizers, fertilizers containing one or more nutrient elements required for the growth of crops, also called inorganic fertilizers, prepared by chemical and physical methods, and include nitrogenous fertilizers, phosphatic fertilizers, potash fertilizers, micro-fertilizers, compound fertilizers and the like, and have the following common characteristics: the components are simple, and the nutrient content is high; the fertilizer efficiency is fast, and the fertilizer is strong; certain fertilizers have acid-base reactions; generally, the fertilizer does not contain organic matters, has no soil improvement and fertilization effects, has more chemical fertilizer types and has larger difference of properties and application methods.

Because current chemical fertilizer is in the use, its fertilizer efficiency is fast, and fertile strength is violent, leads to the fertility to lose efficacy soon easily, and the plant is not enough to absorb the fertility, and the fertility has run off along with the rainwater, leads to its efficiency lower, and is unfavorable for absorbing, and on the other hand, current chemical fertilizer can lead to soil hardening mostly, leads to the vegetation to be difficult.

Disclosure of Invention

The invention aims to provide a bamboo charcoal high-efficiency powdery fertilizer and a preparation method thereof, which utilize the characteristics that bamboo charcoal powder has a loose and porous structure, fine and porous molecules, hard texture and strong adsorption capacity, can better store water and achieve the effect of slowly releasing a large number of elements; the amino acid is utilized to promote the growth and development of plants, enhance the stress resistance and improve the soil condition; fermented soybean meal is utilized to produce probiotics, glutamic acid and other substances, so that the colony environment in soil is improved; supplementing phosphorus and potassium elements required by plant growth by using macroelements and providing elements required by plant growth; the water storage effect is effectively realized by utilizing the characteristic that sepiolite absorbs water and becomes soft; the straw powder and the human and animal excreta are used for supplementing other trace elements required by plant growth so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a bamboo charcoal high-efficiency powdery fertilizer comprises the following components in percentage by mass: 30-50% of bamboo charcoal powder, 10-20% of fermented soybean meal, 35-45% of amino acid, 3-6% of macroelements, 5-8% of sepiolite, 2-3% of straw powder and 1-2% of human and animal excreta.

Preferably, the macroelements comprise the following components in percentage by mass: 13-22% of ground phosphate rock, 26-34% of calcium superphosphate, 17-24% of potassium sulfate and 30-40% of plant ash, wherein the ground phosphate rock is gray powder.

Preferably, the amino acid is a mixture of glutamine, alanine and histidine, and the molar mass ratio of the glutamic acid to the alanine to the histidine is 5:3: 2.

Preferably, the straw powder is at least one of rice straw powder, corn straw powder, barley straw powder and sorghum straw powder, and the particle size of the straw powder is 50-75 μm.

The invention also provides a preparation method of the bamboo charcoal high-efficiency powdery fertilizer, which comprises the following steps:

s1: preparing materials: cutting bamboos into strips with the length of 20-30 cm, performing high-temperature pyrolysis in a reaction kettle at the temperature of 800-1000 ℃ to generate bamboo charcoal, cooling the bamboo charcoal to room temperature to obtain bamboo charcoal strips, mixing bean pulp and warm water through a mixer, placing the mixture in a fermentation tank, inoculating bacterial powder into the fermentation tank, controlling the fermentation temperature to be 30-32 ℃, and performing anaerobic fermentation for 72-96 hours to obtain fermented bean pulp; crushing the straw raw material into strips with the length of 5cm-10cm by a crusher to obtain straw strips for later use;

s2: drying: drying the fermented soybean meal obtained in the step S1 in a vacuum low-temperature dryer, respectively drying the straw strips and the human and animal excreta under heating of corresponding dryers, and controlling the water content of the fermented soybean meal, the straw strips and the human and animal excreta to be 5-8%;

s3: grinding: grinding the bamboo charcoal strips obtained in the step S1, the fermented soybean meal, the straw strips and the human and animal excreta obtained in the step S2, as well as the sepiolite and the macroelements by corresponding grinders respectively to obtain bamboo charcoal powder, fermented soybean meal powder, macroelement powder, sepiolite powder, straw powder and human and animal excreta powder for later use;

s4: screening: screening the raw materials obtained in the step S3 through a filter screen, respectively placing the screened raw materials in corresponding storage bins for storage, controlling the granularity of each screened component to be 50-75 μm, returning the bamboo charcoal powder, the fermented soybean meal powder, the macroelement powder, the sepiolite powder, the straw powder and the human and animal excrement powder which do not pass the screening to the corresponding grinder in the step S3 for continuous grinding;

s5: weighing: weighing the components in the amino acid according to corresponding mass percentages, weighing the components in the macroelements, and weighing the bamboo charcoal powder, the fermented soybean meal, the macroelements powder, the sepiolite powder, the straw powder and the human and animal excrement powder obtained in the step S3 according to corresponding mass percentages;

s6: mixing: putting the weighed components obtained in the step S5 into a mixer, and controlling the mixing speed of the mixer to be 30-60 r/min to obtain the bamboo charcoal high-efficiency powdery fertilizer;

s7: packaging: the mixture obtained in step S6 is packaged by an automatic packaging machine.

Preferably, the filter screen in the step S4 is 200-300 meshes, and the screening time is 60-80 min.

Preferably, the mixer in the step S6 is a ZSH series mixer, and the mixing time is 3h-5 h.

Preferably, the automatic packaging machine in the step S7 is a DGS series automatic packaging machine, and the packaging specification is 25kg to 50 kg.

Preferably, the environmental humidity in the weighing, mixing and packaging processes of the steps S5-S6 is not more than 5%, and the environmental temperature is 25-30 ℃.

Compared with the prior art, the invention has the beneficial effects that: the bamboo charcoal powder has a loose and porous structure, fine and porous molecules, hard texture and strong adsorption capacity, can store water well and achieve the effect of slowly releasing a large number of elements; the amino acid is utilized to promote the growth and development of plants, enhance the stress resistance and improve the soil condition; fermented soybean meal is utilized to produce probiotics, glutamic acid and other substances, so that the colony environment in soil is improved; supplementing phosphorus and potassium elements required by plant growth by using macroelements and providing elements required by plant growth; the water storage effect is effectively realized by utilizing the characteristic that sepiolite absorbs water and becomes soft; the straw powder and the human and animal excreta are used for supplementing other trace elements required by plant growth. Especially, the fertilizer has lasting effect, and the fertilizer can effectively improve the soil condition and improve the yield of crops.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The bamboo charcoal high-efficiency powdery fertilizer provided by the invention comprises the following components in percentage by mass and specific embodiment data:

the mass percentages of the components of the macroelements and the data of the specific examples are as follows:

example 1

A bamboo charcoal high-efficiency powdery fertilizer comprises the following components in percentage by mass: 40% of bamboo charcoal powder, 10% of fermented soybean meal, 37% of amino acid, 3% of macroelements, 5% of sepiolite, 3% of straw powder and 2% of human and animal excreta, wherein the macroelements comprise the following components in percentage by mass: the composite material comprises 13% of phosphate rock powder, 32% of calcium superphosphate, 17% of potassium sulfate and 38% of plant ash, wherein the phosphate rock powder is gray powder, the amino acid is a mixture of glutamine, alanine and histidine, the molar mass ratio of the glutamic acid to the alanine to the histidine is 5:3:2, the straw powder is a mixture of rice straw powder, corn straw powder, barley straw powder and sorghum straw powder, and the particle size of the straw powder is 50 microns.

The invention also provides a preparation method of the bamboo charcoal high-efficiency powdery fertilizer, which comprises the following steps:

s1: preparing materials: cutting bamboos into strips with the length of 20cm, performing high-temperature pyrolysis in a reaction kettle at the temperature of 800 ℃ to generate bamboo charcoal, cooling the bamboo charcoal to room temperature to obtain bamboo charcoal strips, mixing bean pulp and warm water through a mixer, placing the mixture in a fermentation tank, inoculating bacterial powder into the fermentation tank, controlling the fermentation temperature at 30 ℃, and performing anaerobic fermentation for 96 hours to obtain fermented bean pulp; crushing the straw raw material into strips with the length of 5cm by a crusher to obtain straw strips for later use;

s2: drying: drying the fermented soybean meal obtained in the step S1 in a vacuum low-temperature dryer, respectively drying the straw strips and the human and animal excreta under heating of corresponding dryers, and controlling the water content of the fermented soybean meal, the straw strips and the human and animal excreta to be 5%;

s3: grinding: grinding the bamboo charcoal strips obtained in the step S1, the fermented soybean meal, the straw strips and the human and animal excreta obtained in the step S2, as well as the sepiolite and the macroelements by corresponding grinders respectively to obtain bamboo charcoal powder, fermented soybean meal powder, macroelement powder, sepiolite powder, straw powder and human and animal excreta powder for later use;

s4: screening: screening the raw materials obtained in the step S3 through a filter screen, respectively placing the screened raw materials in corresponding storage boxes for storage, controlling the granularity of each screened component to be 50 mu m, and returning the bamboo charcoal powder, the fermented soybean meal, the macroelement powder, the sepiolite powder, the straw powder and the human and animal excrement powder which do not pass the screening to the corresponding grinder in the step S3 for continuous grinding;

s5: weighing: weighing the components in the amino acid according to corresponding mass percentages, weighing the components in the macroelements, and weighing the bamboo charcoal powder, the fermented soybean meal, the macroelements powder, the sepiolite powder, the straw powder and the human and animal excrement powder obtained in the step S3 according to corresponding mass percentages;

s6: mixing: putting the weighed components obtained in the step S5 into a mixer, and controlling the mixing speed of the mixer at 30r/min to obtain the bamboo charcoal high-efficiency powdery fertilizer;

s7: packaging: the mixture obtained in step S6 is packaged by an automatic packaging machine.

The filter screen is 300 meshes in the step S4, the screening time is 80min, the mixer is a ZSH series mixer in the step S6, the mixing time is 5h, the automatic packaging machine is a DGS series automatic packaging machine in the step S7, the packaging specification is 25kg, the environmental humidity in the weighing, mixing and packaging processes in the steps S5-S6 is 5%, and the environmental temperature is 25 ℃.

Example 2

A bamboo charcoal high-efficiency powdery fertilizer comprises the following components in percentage by mass: 36% of bamboo charcoal powder, 13% of fermented soybean meal, 38% of amino acid, 5% of macroelements, 4% of sepiolite, 2.5% of straw powder and 1.5% of human and animal excreta, wherein the macroelements comprise the following components in percentage by mass: 16% of phosphorite powder, 30% of calcium superphosphate, 20% of potassium sulfate and 34% of plant ash, wherein the phosphorite powder is gray powder, the amino acid is a mixture of glutamine, alanine and histidine, the molar mass ratio of the glutamic acid to the alanine to the histidine is 5:3:2, the straw powder is a mixture of rice straw powder and sorghum straw powder, and the particle size of the straw powder is 60 mu m.

The invention also provides a preparation method of the bamboo charcoal high-efficiency powdery fertilizer, which comprises the following steps:

s1: preparing materials: cutting bamboos into strips with the length of 25cm, performing high-temperature pyrolysis in a reaction kettle at the temperature of 900 ℃ to generate bamboo charcoal, cooling the bamboo charcoal to the room temperature to obtain bamboo charcoal strips, mixing bean pulp and warm water through a mixer, placing the mixture in a fermentation tank, inoculating bacterial powder into the fermentation tank, controlling the fermentation temperature to be 31 ℃, and performing anaerobic fermentation for 84 hours to obtain fermented bean pulp; crushing the straw raw material into strips with the length of 5cm by a crusher to obtain straw strips for later use;

s2: drying: drying the fermented soybean meal obtained in the step S1 in a vacuum low-temperature dryer, respectively drying the straw strips and the human and animal excreta under heating of corresponding dryers, and controlling the water content of the fermented soybean meal, the straw strips and the human and animal excreta to be 6%;

s3: grinding: grinding the bamboo charcoal strips obtained in the step S1, the fermented soybean meal, the straw strips and the human and animal excreta obtained in the step S2, as well as the sepiolite and the macroelements by corresponding grinders respectively to obtain bamboo charcoal powder, fermented soybean meal powder, macroelement powder, sepiolite powder, straw powder and human and animal excreta powder for later use;

s4: screening: screening the raw materials obtained in the step S3 through a filter screen, respectively placing the screened raw materials in corresponding storage boxes for storage, controlling the granularity of each screened component to be 60 mu m, and returning the bamboo charcoal powder, the fermented soybean meal, the macroelement powder, the sepiolite powder, the straw powder and the human and animal excrement powder which do not pass the screening to the corresponding grinder in the step S3 for continuous grinding;

s5: weighing: weighing the components in the amino acid according to corresponding mass percentages, weighing the components in the macroelements, and weighing the bamboo charcoal powder, the fermented soybean meal, the macroelements powder, the sepiolite powder, the straw powder and the human and animal excrement powder obtained in the step S3 according to corresponding mass percentages;

s6: mixing: putting the weighed components obtained in the step S5 into a mixer, and controlling the mixing speed of the mixer at 45r/min to obtain the bamboo charcoal high-efficiency powdery fertilizer;

s7: packaging: the mixture obtained in step S6 is packaged by an automatic packaging machine.

The filter screen is 250 meshes in the step S4, the screening time is 70min, the mixer is a ZSH series mixer in the step S6, the mixing time is 4h, the automatic packaging machine is a DGS series automatic packaging machine in the step S7, the packaging specification is 40kg, the environmental humidity in the weighing, mixing and packaging processes in the steps S5-S6 is 4%, and the environmental temperature is 28 ℃.

Example 3

A bamboo charcoal high-efficiency powdery fertilizer comprises the following components in percentage by mass: 30% of bamboo charcoal powder, 17% of fermented soybean meal, 41% of amino acid, 6% of macroelements, 3% of sepiolite, 2% of straw powder and 1% of human and animal excreta, wherein the macroelements comprise the following components in percentage by mass: 20% of phosphate rock powder, 26% of calcium superphosphate, 22% of potassium sulfate and 32% of plant ash, wherein the phosphate rock powder is gray powder, the amino acid is a mixture of glutamine, alanine and histidine, the molar mass ratio of the glutamic acid to the alanine to the histidine is 5:3:2, the straw powder is a mixture of corn straw powder, barley straw powder and sorghum straw powder, and the particle size of the straw powder is 75 microns.

The invention also provides a preparation method of the bamboo charcoal high-efficiency powdery fertilizer, which comprises the following steps:

s1: preparing materials: cutting bamboos into strips with the length of 30cm, performing high-temperature pyrolysis in a reaction kettle at the temperature of 1000 ℃ to generate bamboo charcoal, cooling the bamboo charcoal to the room temperature to obtain bamboo charcoal strips, mixing bean pulp and warm water through a mixer, placing the mixture in a fermentation tank, inoculating bacterial powder into the fermentation tank, controlling the fermentation temperature at 32 ℃, and performing anaerobic fermentation for 72 hours to obtain fermented bean pulp; crushing the straw raw material into strips with the length of 10cm by a crusher to obtain straw strips for later use;

s2: drying: drying the fermented soybean meal obtained in the step S1 in a vacuum low-temperature dryer, respectively drying the straw strips and the human and animal excreta under heating of corresponding dryers, and controlling the water content of the fermented soybean meal, the straw strips and the human and animal excreta to be 8%;

s3: grinding: grinding the bamboo charcoal strips obtained in the step S1, the fermented soybean meal, the straw strips and the human and animal excreta obtained in the step S2, as well as the sepiolite and the macroelements by corresponding grinders respectively to obtain bamboo charcoal powder, fermented soybean meal powder, macroelement powder, sepiolite powder, straw powder and human and animal excreta powder for later use;

s4: screening: screening the raw materials obtained in the step S3 through a filter screen, respectively placing the screened raw materials in corresponding storage boxes for storage, controlling the granularity of each screened component to be 75 mu m, and returning the bamboo charcoal powder, the fermented soybean meal, the macroelement powder, the sepiolite powder, the straw powder and the human and animal excrement powder which do not pass the screening to the corresponding grinder in the step S3 for continuous grinding;

s5: weighing: weighing the components in the amino acid according to corresponding mass percentages, weighing the components in the macroelements, and weighing the bamboo charcoal powder, the fermented soybean meal, the macroelements powder, the sepiolite powder, the straw powder and the human and animal excrement powder obtained in the step S3 according to corresponding mass percentages;

s6: mixing: putting the weighed components obtained in the step S5 into a mixer, and controlling the mixing speed of the mixer at 60r/min to obtain the bamboo charcoal high-efficiency powdery fertilizer;

s7: packaging: the mixture obtained in step S6 is packaged by an automatic packaging machine.

The filter screen is 200 meshes in the step S4, the screening time is 80min, the mixer is a ZSH series mixer in the step S6, the mixing time is 3h, the automatic packaging machine is a DGS series automatic packaging machine in the step S7, the packaging specification is 50kg, the environmental humidity in the weighing, mixing and packaging processes in the steps S5-S6 is 3%, and the environmental temperature is 30 ℃.

The operation parameters and specific embodiment data of the mixer in the preparation method of the bamboo charcoal high-efficiency powdery fertilizer are as follows:

in summary, the following steps: the bamboo charcoal powder has a loose and porous structure, fine and porous molecules, hard texture and strong adsorption capacity, can store water well and achieve the effect of slowly releasing a large number of elements, avoids serious loss of the existing fertilizer along with rainwater, realizes efficient utilization of various internal nutrient components, promotes plant growth and development by using amino acid, enhances stress resistance, improves soil conditions, facilitates plant growth, increases chlorophyll content, reduces the degradation speed of chlorophyll, and improves the effect of photosynthetic rate; fermented soybean meal is utilized to produce probiotics, glutamic acid and other substances, so that the colony environment in soil is improved; supplementing phosphorus and potassium elements required by plant growth by using macroelements and providing elements required by plant growth; the water storage effect is effectively realized by utilizing the characteristic that sepiolite absorbs water and becomes soft; the straw powder and the human and animal excreta are used for supplementing other trace elements required by plant growth. Especially, the fertilizer has lasting effect, and the fertilizer can effectively improve the soil condition and improve the yield of crops.

The bamboo charcoal is biochar generated by pyrolyzing moso bamboo at 1200 ℃ under an anaerobic condition. The pore is developed, and the specific surface area is 300 square meters per gram; has certain active carbon properties; the emission amount of negative ions is 483/cc; the far infrared ray emissivity is 88.3; the distance measurement of the positive electrode and the negative electrode of the electroprobe is 10-15cm, and the resistance value is 2000-; the heavy metal absorbent can effectively adsorb heavy metal substances in soil and harmful substances in soil, passivate the activity of heavy metal, and reduce the absorption of heavy metal by crops, thereby reducing the heavy metal content of the crops; can loosen soil and promote the growth of microorganisms in the soil. And the selenium content reaches 16 mg/kg.

The adsorption rate of the bamboo charcoal to heavy metal cadmium is 84.1 percent; the cadmium desorption efficiency is 0.033% under the normal temperature condition; the cadmium desorption efficiency at 50 ℃ is 0.077%.

The pore structure of the bamboo charcoal has strong adsorption capacity, and the bamboo charcoal can become a good fertilizer slow-release carrier by adding the soil Cation Exchange Capacity (CEC). The bamboo charcoal also improves the decomposition speed of the pesticide residue in the soil for surrounding active microorganisms.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.