CN113789181A - Soil conditioner and preparation method thereof - Google Patents
Soil conditioner and preparation method thereof Download PDFInfo
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- CN113789181A CN113789181A CN202111268735.9A CN202111268735A CN113789181A CN 113789181 A CN113789181 A CN 113789181A CN 202111268735 A CN202111268735 A CN 202111268735A CN 113789181 A CN113789181 A CN 113789181A
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- 239000003516 soil conditioner Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 43
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 43
- 241001474374 Blennius Species 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 240000006439 Aspergillus oryzae Species 0.000 claims abstract description 19
- 235000002247 Aspergillus oryzae Nutrition 0.000 claims abstract description 19
- 241000187747 Streptomyces Species 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 241000881860 Paenibacillus mucilaginosus Species 0.000 claims abstract description 18
- 239000007633 bacillus mucilaginosus Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 244000005700 microbiome Species 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 230000000813 microbial effect Effects 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 239000002364 soil amendment Substances 0.000 claims 7
- 239000002689 soil Substances 0.000 abstract description 96
- 230000006872 improvement Effects 0.000 abstract description 12
- 230000035699 permeability Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000002688 soil aggregate Substances 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- 230000000593 degrading effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 208000003643 Callosities Diseases 0.000 description 3
- 206010020649 Hyperkeratosis Diseases 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
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- 239000010419 fine particle Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000004016 soil organic matter Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The application relates to the technical field of soil improvement, and particularly discloses a soil conditioner and a preparation method thereof. A soil conditioner is prepared from the following raw materials in concentration: 200-300 g/L of coconut shell activated carbon powder, 40-60 g/L of seaweed residues, 80-120 g/L of coffee residues and 2-4 g/L of compound microorganism bacterium liquid, wherein the solvent is water; the compound microorganism bacterium liquid is prepared from Aspergillus oryzae, Bacillus mucilaginosus and Streptomyces jingyangensis according to the concentration ratio of (1-5) to (0.5-2.5) to (1-5). The soil conditioner prepared by the application can increase the content of organic matters in soil and reduce the volume weight of the soil, so that the soil still keeps a better soil granular structure after continuous cultivation, the air permeability and the water permeability of a soil plough layer are good, and the possibility of secondary salinization of the soil is further reduced.
Description
Technical Field
The application relates to the technical field of soil improvement, in particular to a soil conditioner and a preparation method thereof.
Background
According to the investigation result of the soil condition of the farmland in China, the method comprises the following steps: at present, sufficient organic fertilizer is applied to farmland soil in China, although the yield of economic crops can be improved to a certain extent, the problems of secondary salinization, soil hardening and the like of different degrees can occur to the farmland soil generally about 3 years, and the quality of the subsequent farmland soil is reduced.
At present, the main measure for solving the problems of secondary salinization and soil hardening of farmland soil is to use loose soil essence, wherein the main component of the loose soil essence is polyacrylamide, but the loose soil essence is easily decomposed into carbon dioxide, water and ammonium nitrate under illumination. In the use process of the loose soil essence, farmers need to turn over farmland soil regularly, the loose soil essence moves upwards along with turning, and the loose soil essence is easy to be exposed under the sun, so that the decomposition of the loose soil essence is easy to lose efficacy. Therefore, the soil-loosening agent has poor durability of improving the soil of the farmland.
Disclosure of Invention
In order to improve the salinization and hardening conditions of soil efficiently and durably, the application provides a soil conditioner and a preparation method thereof.
In a first aspect, the present application provides a soil conditioner, which adopts the following technical scheme:
a soil conditioner is prepared from the following raw materials in concentration:
the solvent is water;
the compound microorganism bacterium liquid is prepared from Aspergillus oryzae, Bacillus mucilaginosus and Streptomyces jingyangensis according to the concentration ratio of (1-5) to (0.5-2.5) to (1-5).
By adopting the technical scheme, the coconut shell activated carbon powder is loose and porous, and still keeps a hard physical structure after absorbing water, so that the coconut shell activated carbon powder can play a role in supporting and ventilating in soil after being doped into the soil, and the possibility of hardening of the soil is reduced; meanwhile, the porous structure of the coconut shell activated carbon powder can play a good role in water retention and heat preservation, and provides a proper temperature and moisture environment for metabolism of strains in the composite microbial liquid; the seaweed residues are alkaline, the coffee residues are acidic, and the pH value of the soil conditioner is maintained at 6-7.5 by adjusting the proportion of the seaweed residues to the coffee residues, so that a proper pH environment is provided for the growth and the propagation of strains on one hand, and the pH value of acid soil or alkaline earth can be adjusted on the other hand; secondly, the seaweed residues and the coffee residues are rich in organic matters such as amino acid, protein and the like, and can provide sufficient nutrition for the growth and the propagation of strains;
thirdly, the colloid contained in the seaweed residues and the coconut shell activated carbon powder are matched for use, so that soil aggregates can be coated around the coconut shell activated carbon powder under the agglomeration action of the colloid to form fine particles, and the seaweed residues and the coconut shell activated carbon powder play a synergistic effect in the aspect of improving the soil aggregate structure, thereby solving the problem of soil hardening; in addition, the coconut shell activated carbon powder and the coffee grounds both contain porous structures, can store seaweed residues and compound microbial liquid, play a slow release role and enable the improvement effect of the soil conditioner to be lasting;
aspergillus oryzae (Aspergillus oryzae), Bacillus mucilaginosus (Bacillus mucilaginosus) and Streptomyces jingyansis (Streptomyces jingyansis) contained in the composite microbial liquid are compounded for use, and the synergistic effect is achieved in the aspects of dissolving potassium and fixing nitrogen, degrading mineral substances in soil, enhancing soil organic matters and improving soil structure, so that the penetration and absorption of mineral salt components in soil are promoted, and the possibility of secondary salinization is further reduced;
finally, the coconut shell activated carbon powder, the coffee grounds and the seaweed residues in the soil conditioner can be obtained by recycling and processing factory wastes, can be directly degraded in soil, is environment-friendly and is safe and nontoxic to human bodies.
Preferably, the mesh number of the coconut shell activated carbon powder is 200-400 meshes.
By adopting the technical scheme, the coconut shell activated carbon powder can ensure that the particle size of the agglomerated soil particles is moderate and the soil has good air permeability within the mesh range; smaller than the mesh range, the coconut shell activated carbon powder has too large particle size, which easily causes the soil to be too loose and to be sanded, thereby reducing the water retention effect of the soil.
Preferably, the concentration ratio of Aspergillus oryzae to Bacillus mucilaginosus to Streptomyces jingyangensis in the composite microbial liquid is (2-4): (1-2): 2-4.
By adopting the technical scheme, in the concentration range, all strains interact with each other, so that the metabolism rate of the strains is higher, and the soil improvement of the soil conditioner is efficient; and the survival time of the strain in the soil is long, so that the soil can be continuously improved.
Preferably, the concentration ratio of the seaweed residues to the coffee residues is 1 (1.5-2).
By adopting the technical scheme, the seaweed residues and the coffee residues can stably maintain the pH value of the soil conditioner system to be 6.5-7 within the concentration ratio range, and the environment is the optimum pH value environment of the compound microorganism bacterium liquid.
Preferably, the concentration ratio of the seaweed residues to the coconut shell activated carbon powder is 1 (4-5).
By adopting the technical scheme, the colloid in the seaweed residues, namely polysaccharide, oligosaccharide and coconut shell activated carbon powder which are rich in the seaweed residues, has good adsorption and condensation effects, and further improves the agglomeration durability of soil particles, so that the soil keeps long-acting air permeability and water permeability.
Preferably, the concentration ratio of the coconut shell activated carbon powder to the composite microbial liquid is 1 (0.01-0.015).
By adopting the technical scheme, in the concentration ratio range, the coconut shell activated carbon powder can fully absorb the composite microbial liquid, so that the composite microbial liquid can keep lasting activity in the coconut shell activated carbon powder.
In a second aspect, the application provides a method for preparing a soil conditioner, which adopts the following technical scheme.
A preparation method of a soil conditioner comprises the following steps:
s1, sterilizing the coconut shell activated carbon powder, the seaweed residues and the coffee residues;
s2, weighing Aspergillus oryzae, Bacillus mucilaginosus, Streptomyces jingyangensis, sterilized coconut shell activated carbon powder, seaweed residues and coffee residues according to the proportion, and stirring and blending the raw materials to obtain a blend material;
and S3, adding the mixture into water, and stirring to obtain the soil conditioner.
Preferably, in the step S2, the sterilized coconut shell activated carbon powder, the seaweed residues and the coffee residues are added into water, the pH value is adjusted to 7, and then aspergillus oryzae, bacillus mucilaginosus and streptomyces jingyangensis are added, stirred and blended, and then placed in an environment of 30-35 ℃ for 10-15 days, so as to obtain the soil conditioner.
According to the technical scheme, the Aspergillus oryzae, the Bacillus mucilaginosus and the streptomyces jingyang are cultured firstly, so that the Aspergillus oryzae, the Bacillus mucilaginosus and the streptomyces jingyang can keep good activity, and the performances of the soil conditioner in the aspects of dissolving potassium and fixing nitrogen, degrading mineral substances in soil and enhancing organic matters in soil are further improved.
In summary, the present application has the following beneficial effects:
1. in the application, the coconut shell activated carbon powder, the seaweed residues and the coffee residues are matched to provide a proper growth environment for the composite microbial liquid, so that the soil conditioner is rich in components capable of dissolving potassium, fixing nitrogen and degrading minerals in soil, thereby promoting the penetration and absorption of mineral salt components in the soil, obviously reducing the possibility of secondary salinization and hardening of the soil under continuous cultivation, and efficiently and durably improving the salinization and hardening conditions of the soil;
2. in the application, the coconut shell activated carbon powder and the seaweed residues are compounded, so that soil aggregates can be coated around the coconut shell activated carbon powder under the aggregation action of the colloid to form fine particles, and the seaweed residues and the coconut shell activated carbon powder play a synergistic effect in the aspect of improving the soil aggregate structure, thereby solving the problem of soil hardening;
3. aspergillus oryzae, bacillus mucilaginosus and streptomyces jingyangensis are selected from the composite microbial liquid, the metabolism rate of the three strains is high, the activity is high, and the synergistic effect is achieved in the aspects of dissolving potassium and fixing nitrogen, degrading mineral substances in soil, enhancing soil organic matters and improving soil structure.
Detailed Description
Unless otherwise specified, the following examples and comparative examples have the following raw material sources:
aspergillus oryzae (Aspergillus oryzae): purity 100%, CAS No.: 497-48-3, purchased from Weifang Ruichi Biotechnology Ltd;
bacillus mucilaginosus (Bacillus mucoarginosus): purity 100%, CAS No.: 107-21-1, was purchased from Weifang Rui Biotechnology Ltd;
streptomyces jingyangensis (Streptomyces jingyansis): the strain number is as follows: SHBCC D11058, available from Rachu Biotechnology (Jiangsu) Ltd;
coconut shell activated carbon powder: purchased from Olympic Water purification materials, Inc., Henan;
seaweed residues: the organic fertilizer contains 18-19% of protein, 60% of organic matters, 5% of NPK, 14% of ash and 14% of water, and is purchased from ocean biotechnology limited on sunshine moss;
coffee grounds: recycled from Shenzhen coffee production company.
Examples
Example 1
A soil conditioner is prepared by the following steps:
s1, placing the coconut shell activated carbon powder (crushed, ground and sieved to have the specification of 100-200 meshes), the seaweed slag and the coffee slag under an ultraviolet lamp, wherein the irradiance of the ultraviolet lamp is 50 mu w/cm2Irradiating for 30min, and taking out;
s2, weighing 200g of coconut shell activated carbon powder with 100-mesh and 200-mesh meshes, 40g of seaweed residues, 80g of coffee residues, 1.8g of Aspergillus oryzae, 0.4g of Bacillus mucilaginosus and 1.8g of Streptomyces jingyang, and stirring and blending at the speed of 100rpm for 5min to obtain a blend;
s3, weighing 1L of distilled water, adding the blend into the distilled water, and stirring and blending at the speed of 100rpm for 10min to obtain the soil conditioner.
Examples 2 to 7 were prepared in the same manner as described above, and examples 2 to 7 were different in the content of each strain of the complex microorganism broth in the soil conditioner, and the specific contents are shown in table 1 below.
TABLE 1. examples 1-7 contents of respective strains constituting the complex microorganism bacterial liquid in the soil conditioner
Examples 8 to 12
The soil conditioner is different from the soil conditioner in example 6 in the content of coconut shell activated carbon powder, seaweed residue, coffee residue and compound microorganism bacterium liquid in the soil conditioner, and the specific content is shown in the following table 2.
TABLE 2 contents of respective raw materials in soil conditioners of examples 8 to 12
| Raw materials | Example 6 | Example 8 | Example 9 |
| Coconut shell activated carbon powder/g | 200 | 300 | 240 |
| Seaweed residue/g | 40 | 60 | 60 |
| Coffee grounds/g | 80 | 120 | 120 |
| Compound microorganism bacterium liquid/g | 4 | 2 | 2 |
| water/L | 1 | 1 | 1 |
| Raw materials | Example 10 | Example 11 | Example 12 |
| Coconut shell activated carbon powder/g | 240 | 240 | 240 |
| Seaweed residue/g | 60 | 60 | 60 |
| Coffee grounds/g | 90 | 90 | 90 |
| Compound microorganism bacterium liquid/g | 2 | 2.4 | 3.6 |
| water/L | 1 | 1 | 1 |
Note: the ratio of each strain in the complex microbial liquid in the embodiments 8 to 12 is the same as that in the embodiment 6.
Example 13
The soil conditioner is different from the soil conditioner in the embodiment 12 in that the coconut shell activated carbon powder is crushed and ground and then is sieved with 400 meshes of 200-mesh.
Example 14
A soil conditioner is prepared by the following steps:
s1, placing the coconut shell activated carbon powder (crushed, ground and sieved to have the specification of 100-200 meshes), the seaweed slag and the coffee slag under an ultraviolet lamp, wherein the irradiance of the ultraviolet lamp is 50 mu w/cm2Irradiating for 30min, and taking out;
s2, weighing 200g of 200-mesh coconut shell activated carbon powder, 40g of seaweed residues and 80g of coffee residues, adding the powder, the seaweed residues and the coffee residues into 1L of distilled water, and stirring at the rotating speed of 100rpm for 10 min; measuring the pH value of the system, and adding baking soda or oxalic acid to adjust the pH value of the system to 7 to obtain a culture solution for later use;
and weighing 1.8g of aspergillus oryzae, 0.4g of bacillus mucilaginosus and 1.8g of streptomyces jingyangensis, putting into the culture solution, stirring and blending at the speed of 100rpm for 5min, and then putting into an incubator, wherein the temperature in the incubator is 30 ℃, and culturing for 10 days to obtain the soil conditioner.
Comparative example
Comparative examples 1 to 6
A soil conditioner is different from the soil conditioner in example 1 in the composition of raw materials in the soil conditioner, and the specific raw material composition and content are shown in the following table 3.
TABLE 3 contents of respective raw materials in soil conditioners of comparative examples 1 to 6
Performance test
Detection method
The method takes test field soil mainly used for planting corn and carrying out secondary salinization as a research object:
dividing 22 blocks in the test field into 1 × 1m2Test zones of (1), each of which the soil improvement agent prepared in examples 1 to 14 and comparative examples 1 to 6 was applied;
setting 1 area as a control group 1, wherein the control group 1 does not adopt any measures to reflect the change condition of continuous cultivation of the soil for 5 years under the condition that the soil in the test area does not adopt any improvement measures and only applies fertilizers;
setting 1 area as a control group 2, applying a loose soil essence solution with the concentration of 10g/L to the control group 2 to reflect the change condition of continuous cultivation of soil for 5 years under the condition that only loose soil essence and fertilizer are applied to the soil of a test area; the number of corns planted in each test area is consistent, the planting method of the corns is consistent, and the corns are continuously cultivated for 5 years.
Periodically collecting soil (collection depth is 0-15cm) of each test area, and measuring the pH value, organic matter content and soil volume weight of the soil: the content of organic matters in the soil reflects the fertility of the soil;
the soil volume weight reflects the curing degree of the soil, and the smaller the soil volume weight is, the higher the porosity of the soil is, and the better the air permeability and the water permeability are.
TABLE 4 improving effect on soil of examples 1 to 14 and comparative examples 1 to 6
The pH value of the initial soil is changed within the range of 6-7, and the pH value of the planting soil is still maintained at 6-7 after 5 years of continuous cultivation by applying the soil conditioner prepared by the application method.
As can be seen by combining example 1 with comparative examples 1 to 3 and table 4, no coconut shell activated carbon powder was added in comparative example 1, no seaweed grounds were added in comparative example 2, and no coffee grounds were added in comparative example 3; comparative examples 1 to 3 the corresponding soil organic matter contents were lower than those of example 1 after 2 years and 5 years of continuous cultivation, and the corresponding soil capacities were higher in weight average than those of example 1; firstly, the coconut shell activated carbon powder, the seaweed residues and the coffee residues are shown to provide a proper growth environment for the composite microbial liquid, and the soil conditioner can play a long-acting improvement role; secondly, the compounding of the coconut shell activated carbon powder and the seaweed residues can be proved to play a role in synergy in the aspect of improving the soil aggregate structure, and the volume weight of the soil is obviously reduced.
By combining example 1 and comparative examples 4-6 with table 4, it can be seen that comparative example 4 is not doped with aspergillus oryzae, comparative example 5 is not doped with bacillus mucilaginosus, comparative example 6 is not doped with streptomyces jingyangensis, the soil treated by comparative examples 4-6 has a lower organic matter content than the soil treated by example 1 at the initial stage of improvement and a higher bulk density than the soil treated by example 1; the three strains are compounded to obviously improve the organic matter content of the soil and reduce the volume weight of the soil.
As can be seen by combining example 1 and control groups 1-2 with Table 4, control group 1 did not undergo any improvement treatment and had a soil volume weight of 1.45g/cm after continuous cultivation for 5 years3The temperature is raised to 1.57g/cm3The organic matter content of the soil is reduced from 10.81g/kg to 10.71 g/kg; while the control group 2 was treated with pine soil, the volume weight of the soil was 1.25g/cm after continuous cultivation for 5 years3Raised to 1.35g/cm3The soil treated by the loose soil essence can ensure that the surface layer of the soil is not hardened within 2 years, but the surface layer of the soil is still hardened after continuous cultivation for 5 years, the soil improvement effect is not durable, and the loose soil essence has no obvious effect on the improvement of the content of organic matters in the soil; therefore, the soil conditioner worthy of the application can ensure that the soil surface layer still does not have the hardening phenomenon after continuous cultivation for 5 years, and the volume weight of the soil is always lower than 1.4g/cm3The improvement effect is durable.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The soil conditioner is characterized by being prepared from the following raw materials in concentration:
200-300 g/L of coconut shell activated carbon powder
Seaweed residues 40-60 g/L
80-120 g/L of coffee grounds
2-4 g/L of compound microbial liquid
The solvent is water;
the compound microorganism bacterium liquid is prepared from Aspergillus oryzae, Bacillus mucilaginosus and Streptomyces jingyangensis according to the concentration ratio of (1-5) to (0.5-2.5) to (1-5).
2. A soil amendment according to claim 1, characterized in that: the mesh number of the coconut shell activated carbon powder is 200-400 meshes.
3. A soil amendment according to claim 1, characterized in that: the concentration ratio of Aspergillus oryzae, Bacillus mucilaginosus and Streptomyces jingyangensis in the composite microbial liquid is (2-4): (1-2): 2-4).
4. A soil amendment according to claim 1, characterized in that: the concentration ratio of the seaweed residues to the coffee residues is 1 (1.5-2).
5. A soil amendment according to claim 1, characterized in that: the concentration ratio of the seaweed residues to the coconut shell activated carbon powder is 1 (4-5).
6. A soil amendment according to claim 1, characterized in that: the concentration ratio of the coconut shell activated carbon powder to the composite microbial liquid is 1 (0.01-0.015).
7. A method of producing a soil amendment according to any of claims 1 to 6, characterised in that: the method comprises the following steps:
s1, sterilizing the coconut shell activated carbon powder, the seaweed residues and the coffee residues;
s2, weighing Aspergillus oryzae, Bacillus mucilaginosus, Streptomyces jingyangensis, sterilized coconut shell activated carbon powder, seaweed residues and coffee residues according to the proportion, and stirring and blending the raw materials to obtain a blend material;
and S3, adding the mixture into water, and stirring to obtain the soil conditioner.
8. A method of preparing a soil amendment according to claim 7, wherein: in the step S2, firstly, adding the sterilized coconut shell activated carbon powder, seaweed residues and coffee residues into water, adjusting the pH value to 7, then adding aspergillus oryzae, bacillus mucilaginosus and streptomyces jingyang, stirring and blending, and then placing in an environment of 30-35 ℃ for 10-15 days to obtain the soil conditioner.
Priority Applications (1)
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| CN114804975A (en) * | 2022-03-09 | 2022-07-29 | 美丽华夏生态环境科技有限公司 | Microbial soil conditioner for northwest arid region and preparation method thereof |
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