A spongy garden soil and a method for preparing the same
By combining mussel shell powder and phosphate-solubilizing bacteria fermentation liquid, sponge-type garden soil was prepared, which solved the problem of poor water infiltration capacity of urban garden soil, improved soil structure and fertility, enhanced soil water retention and aeration, and promoted plant growth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO FENGZHIYUN DECORATION CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-06-05
AI Technical Summary
Urban garden soils have poor water infiltration capacity, and existing soil improvement technologies cannot effectively solve this problem.
A sponge-type garden soil was prepared by calcining and mixing a combination of mussel shell powder, biochar, phosphate lime, humus, active modifier, water-retaining agent and catalyst. The water-retaining properties of mussel shell powder and the microbial fermentation of phosphate-solubilizing bacteria were utilized to improve soil structure and increase fertility.
It improves soil water retention and aeration, enhances soil buffering capacity, improves soil structure and permeability, reduces the amount of inorganic fertilizer used, increases crop yield, enhances crop drought resistance, and increases the available phosphorus content in the soil through phosphorus-solubilizing bacteria, thus promoting plant growth.
Smart Images
Figure CN122139634A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of artificial soil technology, specifically to a sponge-type garden soil and its preparation method. Background Technology
[0002] The main functions of good green space soil structure are: first, to provide a suitable growth environment for plants, providing water and nutrients; and second, to provide a good decomposition environment for microorganisms, providing carbon sources and nutrients. The water retention capacity of soil is determined by multiple factors, including soil texture, structure, and organic matter content. Soils with different textures can have vastly different water retention capacities. Generally, soils with higher clay content have stronger water retention, while soils with higher sand content lose water more easily. However, finer soil texture is not always better. Excessive clay content can lead to poor drainage due to low soil porosity, resulting in oxygen deficiency and poor plant root growth. Soil structure can be improved by... Soil texture and increasing soil organic matter content are important for soil improvement. However, texture is a property of soil, mainly determined by the parent material, and is not easily changed. Generally, the higher the organic matter content, the better the soil structure and the greater the water retention capacity. Soil organic matter content is mainly determined by input and output and is a common measure for soil improvement. Soil fertility determines plant growth and affects soil water retention. Soil organic matter is also an important indicator of water retention capacity. Generally, the higher the organic matter content, the higher the water content. Soil conditioners play an important role in improving nutrient utilization, restoring soil fertility, promoting the decomposition and utilization of litter and garbage, and purifying and remediating polluted soil.
[0003] Existing soil fertility enhancement and functional improvement technologies mostly come from farmland ecosystems, whose soil properties, application purposes, and infrastructure are quite different from those of urban green spaces. As a result, urban garden soils have poor water infiltration capacity. To address this issue, this application proposes a sponge-type garden soil and its preparation method to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a sponge-type garden soil and its preparation method to solve the above-mentioned problems. This invention is achieved through the following technical solution: This invention relates to a sponge-type garden soil, comprising, by weight percentage: 60-70% mussel shell powder, 10-20% biochar, 10-15% phosphate lime, 1-3% humus, 1-2% active modifier, 1-2% water-retaining agent, and 1-2% catalyst.
[0005] Preferably, the mussel shell powder is obtained by calcining at a temperature of 300-1100℃ and then crushing it through a 100-200 mesh sieve.
[0006] Preferably, the biochar is obtained by calcining at 700-900℃ and then pulverizing it through a 100-200 mesh sieve.
[0007] Preferably, the active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate.
[0008] Preferably, the catalyst is a phosphate-solubilizing bacteria fermentation broth.
[0009] Preferably, the method for preparing the phosphate-solubilizing bacteria fermentation broth is to inoculate phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume, and culture it at 25-30℃ for 60-80 hours to obtain the phosphate-solubilizing bacteria fermentation broth.
[0010] The preparation method of the above-mentioned sponge-type garden soil includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain them, soak them in 0.1% hydrochloric acid for 24 hours, put them in a crucible, and place them in a tube furnace. High-purity nitrogen gas with a flow rate of 100 mL / min is introduced into the furnace, and the temperature is raised to 300-1100℃ at a heating rate of 10℃ / min. The temperature is maintained at the target temperature for 3 hours. After the temperature in the furnace drops to room temperature, the shells are taken out to obtain mussel shell powder. Step S2: Under alkaline conditions, the humus is dissolved in water, and a certain amount of active modifier is added. The mixture is stirred at 500 r / min for 30 min at 60°C, filtered and washed with water, and dried at 80°C to obtain modified humus. Step S3: Take a certain amount of phosphate lime and mix it with the catalyst, and stir it at 500 r / min for 30 min at 50℃ for later use. Step S4: Add an appropriate amount of mussel shell powder and modified humus from step S2 to the mixture from step S3, and then add an appropriate amount of biochar and water-retaining agent. Stir, mix, and dry to obtain the desired soil.
[0011] Preferably, step S2 also requires the addition of 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1.
[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes mussel shells as raw material to further develop and utilize sponge-type garden soil with water and fertilizer retention properties. It effectively improves soil structure, enhances fertility through microbial fermentation, reduces the amount of inorganic fertilizer needed, alters soil aggregate structure, increases soil aeration, regulates soil pH, and strengthens soil buffering capacity. It also changes soil aggregate structure and improves soil aeration; alters the number of soil microorganisms and increases enzyme activity; provides soil fertility and increases crop yield; it can increase calcium content by exchanging calcium with Na and Mg on the soil surface, transforming the soil from a hydrophilic colloid to a hydrophobic colloid, improving soil structure and permeability, achieving desalination and inhibiting salt return; and simultaneously improving crop drought resistance. The organic matter in the conditioner promotes soil loosening and aggregate structure improvement. Furthermore, phosphate-solubilizing bacteria can increase the available phosphorus content in the soil and promote plant growth. The mixture of multiple raw materials not only effectively utilizes the soil structure improvement functions of mussel shell powder and organic matter, but also enhances soil fertility through the microbial fermentation of phosphate-solubilizing bacteria, thus improving the soil from both structural and functional perspectives. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the preparation method of a sponge-type garden soil according to the present invention. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] Please see Figure 1 The figure shows that the present invention is a sponge-type garden soil, which includes, by mass percentage: 60-70% mussel shell powder, 10-20% biochar, 10-15% phosphate lime, 1-3% humus, 1-2% active modifier, 1-2% water-retaining agent, and 1-2% catalyst. Example
[0016] A sponge-type garden soil comprises, by weight percentage: 60% mussel shell powder, 20% biochar, 15% phosphate lime, 1% humus, 1% active modifier, 1% water-retaining agent, and 2% catalyst.
[0017] Furthermore, the mussel shell powder is calcined at a temperature of 300-1100℃ and then pulverized through a 100-200 mesh sieve. The biochar is calcined at a temperature of 700-900℃ and then pulverized through a 100-200 mesh sieve. The active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate. The catalyst is a phosphate-solubilizing bacteria fermentation broth. The phosphate-solubilizing bacteria fermentation broth is prepared by inoculating phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume and culturing at 25-30℃ for 60-80 hours.
[0018] This embodiment describes a method for preparing sponge-type garden soil, which includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain, soak in 0.1% hydrochloric acid for 24 hours, place in a crucible, and put in a tube furnace. High-purity nitrogen gas is introduced into the furnace at a flow rate of 100 mL / min, and the temperature is raised to 300℃ at a heating rate of 10℃ / min, and maintained at the target temperature for 3 hours. After the furnace temperature drops to room temperature, the shells are removed to obtain mussel shell powder. Step S2: Under alkaline conditions, humus is dissolved in water, and a number of active modifiers are added. The mixture is then heated at 60℃ and 500 r / m. After stirring at a speed of 1 for 30 minutes, the mixture is filtered, washed with water, and dried at 80°C to obtain modified humus soil; Step S3: Take a certain amount of phosphate lime and mix it with the catalyst, and stir at 500 r / min for 30 minutes at 50°C for later use; Step S4: Add an appropriate amount of mussel shell powder and modified humus soil from Step S2 to the mixture from Step S3, and add an appropriate amount of biochar and water-retaining agent, stir, mix, and dry to obtain the desired soil. In Step S2, 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1 are also added. Example
[0019] A sponge-type garden soil comprises, by weight percentage: 70% mussel shell powder, 10% biochar, 11% phosphate lime, 3% humus, 2% active modifier, 2% water-retaining agent, and 2% catalyst.
[0020] Furthermore, the mussel shell powder is calcined at 500℃ and then pulverized through a 100-200 mesh sieve. The biochar is calcined at 700-900℃ and then pulverized through a 100-200 mesh sieve. The active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate. The catalyst is phosphate-solubilizing bacteria fermentation broth. The phosphate-solubilizing bacteria fermentation broth is prepared by inoculating phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume and culturing at 25-30℃ for 60-80 hours to obtain the phosphate-solubilizing bacteria fermentation broth.
[0021] This embodiment describes a method for preparing sponge-type garden soil, which includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain, soak in 0.1% hydrochloric acid for 24 hours, place in a crucible, and put in a tube furnace. High-purity nitrogen gas is introduced into the furnace at a flow rate of 100 mL / min, and the temperature is raised to 300℃ at a heating rate of 10℃ / min, and maintained at the target temperature for 3 hours. After the furnace temperature drops to room temperature, the shells are removed to obtain mussel shell powder. Step S2: Under alkaline conditions, humus is dissolved in water, and a number of active modifiers are added. The mixture is then heated at 60℃ and 500 r / m. After stirring at a speed of 1 for 30 minutes, the mixture is filtered, washed with water, and dried at 80°C to obtain modified humus soil; Step S3: Take a certain amount of phosphate lime and mix it with the catalyst, and stir at 500 r / min for 30 minutes at 50°C for later use; Step S4: Add an appropriate amount of mussel shell powder and modified humus soil from Step S2 to the mixture from Step S3, and add an appropriate amount of biochar and water-retaining agent, stir, mix, and dry to obtain the desired soil. In Step S2, 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1 are also added. Example
[0022] A sponge-type garden soil comprises, by weight percentage: 60% mussel shell powder, 20% biochar, 15% phosphate lime, 1% humus, 2% active modifier, 1% water-retaining agent, and 1% catalyst.
[0023] Furthermore, the mussel shell powder is calcined at a temperature of 300-1100℃ and then pulverized through a 100-200 mesh sieve. The biochar is calcined at a temperature of 700-900℃ and then pulverized through a 100-200 mesh sieve. The active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate. The catalyst is a phosphate-solubilizing bacteria fermentation broth. The phosphate-solubilizing bacteria fermentation broth is prepared by inoculating phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume and culturing at 25-30℃ for 60-80 hours.
[0024] This embodiment describes a method for preparing sponge-type garden soil, which includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain, soak in 0.1% hydrochloric acid for 24 hours, place in a crucible, and put in a tube furnace. High-purity nitrogen gas is introduced into the furnace at a flow rate of 100 mL / min, and the temperature is raised to 900℃ at a heating rate of 10℃ / min, and maintained at the target temperature for 3 hours. After the furnace temperature drops to room temperature, the shells are removed to obtain mussel shell powder. Step S2: Under alkaline conditions, humus is dissolved in water, and a number of active modifiers are added. The mixture is heated at 60℃ and 500 r / m After stirring at a speed of 1 for 30 minutes, the mixture is filtered, washed with water, and dried at 80°C to obtain modified humus soil; Step S3: Take a certain amount of phosphate lime and mix it with the catalyst, and stir at 500 r / min for 30 minutes at 50°C for later use; Step S4: Add an appropriate amount of mussel shell powder and modified humus soil from Step S2 to the mixture from Step S3, and add an appropriate amount of biochar and water-retaining agent, stir, mix, and dry to obtain the desired soil. In Step S2, 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1 are also added. Example
[0025] A sponge-type garden soil comprises, by weight percentage: 650% mussel shell powder, 15% biochar, 15% phosphate lime, 1% humus, 1% active modifier, 1% water-retaining agent, and 2% catalyst.
[0026] Furthermore, the mussel shell powder is calcined at a temperature of 300-1100℃ and then pulverized through a 100-200 mesh sieve. The biochar is calcined at a temperature of 700-900℃ and then pulverized through a 100-200 mesh sieve. The active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate. The catalyst is a phosphate-solubilizing bacteria fermentation broth. The phosphate-solubilizing bacteria fermentation broth is prepared by inoculating phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume and culturing at 25-30℃ for 60-80 hours.
[0027] This embodiment describes a method for preparing sponge-type garden soil, which includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain, soak in 0.1% hydrochloric acid for 24 hours, place in a crucible, and put in a tube furnace. High-purity nitrogen gas is introduced into the furnace at a flow rate of 100 mL / min, and the temperature is raised to 1100℃ at a heating rate of 10℃ / min, and maintained at the target temperature for 3 hours. After the furnace temperature drops to room temperature, the shells are removed to obtain mussel shell powder. Step S2: Under alkaline conditions, humus is dissolved in water, and a number of active modifiers are added. The mixture is heated at 60℃ at a flow rate of 500 r / min. After stirring at a speed of 0.50 r / min for 30 min, the mixture is filtered, washed with water, and dried at 80°C to obtain modified humus. In step S3, a certain amount of phosphate lime is mixed with the catalyst and stirred at 50°C at a speed of 500 r / min for 30 min for later use. In step S4, an appropriate amount of mussel shell powder and modified humus from step S2 are added to the mixture from step S3, along with an appropriate amount of biochar and water-retaining agent. The mixture is then stirred, mixed, and dried to obtain the desired soil. In step S2, 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1 are also added.
[0028] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.
Claims
1. A sponge-type garden soil, characterized in that, By weight percentage, it includes: 60-70% mussel shell powder, 10-20% biochar, 10-15% phosphate lime, 1-3% humus, 1-2% active modifier, 1-2% water-retaining agent, and 1-2% catalyst.
2. The sponge-type garden soil according to claim 1, characterized in that: The mussel shell powder is obtained by calcining at a temperature of 300-1100℃ and then crushing it through a 100-200 mesh sieve.
3. The sponge-type garden soil according to claim 1, characterized in that: The biochar is obtained by calcining at 700-900℃ and then pulverizing it through a 100-200 mesh sieve.
4. The sponge-type garden soil according to claim 1, characterized in that: The active modifier is one or more of sodium dodecylbenzenesulfonate, zinc stearate, and sodium dodecyl sulfate.
5. The sponge-type garden soil according to claim 1, characterized in that: The catalyst is the fermentation broth of phosphate-solubilizing bacteria.
6. The sponge-type garden soil according to claim 5, characterized in that: The method for preparing the phosphate-solubilizing bacteria fermentation broth is to inoculate phosphate-solubilizing bacteria into a liquid fermentation medium at an inoculation rate of 20-30% by volume, and then culture it at 25-30℃ for 60-80 hours to obtain the phosphate-solubilizing bacteria fermentation broth.
7. A method for preparing sponge-type garden soil according to any one of claims 1-6, characterized in that, Includes the following steps: Step S1: Soak and wash a number of mussel shells in clean water to remove surface impurities, drain them, soak them in 0.1% hydrochloric acid for 24 hours, put them in a crucible, and place them in a tube furnace. High-purity nitrogen gas with a flow rate of 100 mL / min is introduced into the furnace, and the temperature is raised to 300-1100℃ at a heating rate of 10℃ / min. The temperature is maintained at the target temperature for 3 hours. After the temperature in the furnace drops to room temperature, the shells are taken out to obtain mussel shell powder. Step S2: Under alkaline conditions, the humus is dissolved in water, and a certain amount of active modifier is added. The mixture is stirred at 500 r / min for 30 min at 60°C, filtered and washed with water, and dried at 80°C to obtain modified humus. Step S3: Take a certain amount of phosphate lime and mix it with the catalyst, and stir it at 500 r / min for 30 min at 50℃ for later use. Step S4: Add an appropriate amount of mussel shell powder and modified humus from step S2 to the mixture from step S3, and then add an appropriate amount of biochar and water-retaining agent. Stir, mix, and dry to obtain the desired soil.
8. The method for preparing sponge-type garden soil according to claim 7, characterized in that: Step S2 also requires the addition of 0.4 parts of zinc stearate and sodium dodecyl sulfate in a mass ratio of 1:1.