CN112028714A - Active nutrient restoration agent for desertification soil and preparation method thereof - Google Patents
Active nutrient restoration agent for desertification soil and preparation method thereof Download PDFInfo
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- CN112028714A CN112028714A CN202010968974.4A CN202010968974A CN112028714A CN 112028714 A CN112028714 A CN 112028714A CN 202010968974 A CN202010968974 A CN 202010968974A CN 112028714 A CN112028714 A CN 112028714A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Soil Sciences (AREA)
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Abstract
The invention discloses an active nutrient restoration agent for desertification soil and a preparation method thereof, wherein the restoration agent comprises the following components in parts by weight: 70-90 parts of plant straw, 30-50 parts of biological humic acid fertilizer, 20-40 parts of inorganic fertilizer, 5-15 parts of microbial strain, 5-10 parts of potassium fulvate and 120-160 parts of bentonite; mixing the powder material with microbial strains and potassium fulvate, fermenting, premixing the rest raw materials, mixing the mixture with a fermented product for the second time, drying to obtain a blocky product, pulverizing the blocky product, and carbonizing to obtain the repair agent. The soil remediation agent provided by the invention has good adsorbability and expansibility, can effectively improve the structure and environment of desertification soil after one-time irrigation, provides a plant growth environment, and further repairs the desertification soil; and the repairing agent has simple processing steps and low cost, and is suitable for large-scale popularization.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to an active nutrient remediation agent for desertification soil and a preparation method thereof.
Background
Land desertification is one of the largest environmental-socio-economic problems facing the world today, "desertification" refers to the degradation of land in arid, semi-arid, and sub-humid regions caused by a variety of factors including climate variation and human activities. China is one of the most seriously harmed countries in the world by desertification, and the occurrence and development of desertification cause serious harm to the ecological environment, natural resources, social economy and people's life in a wide area of China. The process of the desertification development and the reversion is the result of the mutual influence and coordination of human activities and natural environment and resources, particularly the phenomena of vegetation degradation, accelerated wind erosion and the like are easily caused under severe drought conditions in the Qinghai alpine region, and finally the desertification is generated.
Existing remedial and remedial measures are, for example: protective farming, returning to forest, enclosure culture of grass returning fences and the like can only achieve the effect of sand fixation generally, and the effect of restoring fertility of desertified soil to be suitable for plant growth is still the subject of research of people.
Disclosure of Invention
Based on the defects of the prior art, the technical problem to be solved by the invention is to provide the desertification soil active nutrition restoration agent and the preparation method thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme: the invention provides an active nutrient restoration agent for desertification soil, which comprises the following components in parts by weight: 70-90 parts of plant straw, 30-50 parts of biological humic acid fertilizer, 20-40 parts of inorganic fertilizer, 5-15 parts of microbial strain, 5-10 parts of potassium fulvate and 120-160 parts of bentonite.
Optionally, the plant straw is any one or a mixture of more of wheat straw, rice straw, corn straw and sorghum straw, and the microbial strain includes, but is not limited to, AMF microbial inoculum, EM bacteria, composite bacillus subtilis, azotobacter and anti-stress biocontrol bacteria.
Optionally, the inorganic fertilizer is formed by mixing a nitrogen fertilizer, a phosphate fertilizer and a potassium fertilizer according to a ratio of 1: 1-1.2: 0.9-1.1, and the bentonite is formed by mixing calcium bentonite and sodium bentonite according to a ratio of 1: 0.5-0.6.
The invention also provides a preparation method of the desertification soil active nutrition restoration agent, which comprises the following steps:
s1, weighing the raw materials in proportion, crushing and cutting the plant straws, and screening and filtering the crushed plant straws by using a screen to obtain powder materials;
s2, mixing the powder material, the microbial strain and the potassium fulvate, adding the mixture into a reaction tank for fermentation treatment, and obtaining a mixture I after fermentation;
s3, stirring and mixing an inorganic fertilizer, a biological humic acid fertilizer and bentonite by a stirrer to obtain a mixture II;
s4, mixing the mixture I and the mixture II, and drying after mixing to obtain a blocky finished product;
and S5, crushing the blocky finished product by a crusher to obtain particles, and carbonizing the particles to obtain the finished product repairing agent.
Preferably, in the step S1, the plant straws are dried straws, and the mesh number of the screen is 60-120 meshes.
Optionally, in step S2, the reaction tank is sealed, the temperature inside the reaction tank is adjusted to 40 to 50 ℃, and the fermentation time is 60 to 96 hours.
Preferably, in the step S3, the rotation speed of the stirrer is 100 r/min-140 r/min, and the stirring treatment time is not less than 40 min.
Optionally, in step S4, the mixed mixture one and the mixed mixture two are dried at a temperature of 75-95 ℃, and the water content of the blocky finished product is not higher than 5%.
Preferably, in the step S5, the average particle diameter of the crushed blocky finished product is 3mm to 5mm, the carbonization treatment condition is to heat the blocky finished product to 240 ℃ to 260 ℃ within 30min to 40min, and the temperature is kept for not less than 30 min.
Therefore, the active nutrient restoration agent for the desertification soil has good adsorbability and expansibility, and can effectively improve the structure and environment of the desertification soil after one-time irrigation, provide a plant growth environment and further restore the desertification soil; and the repairing agent has simple processing steps and low cost, and is suitable for large-scale popularization.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the contents of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description is given in conjunction with the preferred embodiments.
Detailed Description
Other aspects, features and advantages of the present invention will become apparent from the following detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention.
The invention provides an active nutrient restoration agent for desertification soil, which comprises the following components in parts by weight: 70-90 parts of plant straw, 30-50 parts of biological humic acid fertilizer, 20-40 parts of inorganic fertilizer, 5-15 parts of microbial strain, 5-10 parts of potassium fulvate and 120-160 parts of bentonite.
Furthermore, the plant straw is any one or a mixture of more of wheat straw, rice straw, corn straw and sorghum straw, and the microbial strains include but are not limited to AMF microbial inoculum, EM bacteria, composite bacillus subtilis, azotobacter and anti-adversity biocontrol bacteria.
The inorganic fertilizer is formed by mixing a nitrogen fertilizer, a phosphate fertilizer and a potassium fertilizer according to the proportion of 1: 1-1.2: 0.9-1.1, and the bentonite is formed by mixing calcium bentonite and sodium bentonite according to the proportion of 1: 0.5-0.6.
The first embodiment is as follows: an active nutrient restoration agent for desertification soil, which comprises the following components by weight: 80 parts of plant straw, 42 parts of biological humic acid fertilizer, 32 parts of inorganic fertilizer, 11 parts of microbial strain, 8 parts of potassium fulvate and 145 parts of bentonite.
The preparation method of the embodiment comprises the following steps:
s1, weighing the raw materials in proportion, crushing and cutting the plant straws, and screening and filtering the crushed plant straws by using a screen to obtain powder materials, wherein the mesh number of the screen is 80 meshes;
s2, mixing the powder material, the microbial strain and the potassium fulvate, adding the mixture into a reaction tank for fermentation treatment, and obtaining a mixture I after fermentation; sealing the reaction tank, wherein the internal temperature of the reaction tank is 45 ℃, and the fermentation time is 80 h;
s3, stirring and mixing an inorganic fertilizer, a biological humic acid fertilizer and bentonite by a stirrer to obtain a mixture II; the rotating speed of the stirrer is 120r/min, and the stirring treatment time is 50 min;
s4, mixing the mixture I and the mixture II, and drying at 85 ℃ after mixing, wherein the water content of the blocky finished product obtained after drying is 4%;
s5, crushing the blocky finished product through a crusher to obtain particles with the particle diameter of 4mm, and carbonizing the particles to obtain a finished product repairing agent; the carbonization treatment condition is that the temperature is increased to 250 ℃ within 35min, and the temperature is kept for 40 min.
Example two: an active nutrient restoration agent for desertification soil, which comprises the following components by weight: 70 parts of plant straw, 30 parts of biological humic acid fertilizer, 20 parts of inorganic fertilizer, 5 parts of microbial strain, 5 parts of potassium fulvate and 120 parts of bentonite.
The preparation method of the embodiment comprises the following steps:
s1, weighing the raw materials in proportion, crushing and cutting the plant straws, and screening and filtering the crushed plant straws by using a screen to obtain powder materials, wherein the mesh number of the screen is 60 meshes;
s2, mixing the powder material, the microbial strain and the potassium fulvate, adding the mixture into a reaction tank for fermentation treatment, and obtaining a mixture I after fermentation; sealing the reaction tank, wherein the temperature in the reaction tank is 40 ℃, and the fermentation time is 60 hours;
s3, stirring and mixing an inorganic fertilizer, a biological humic acid fertilizer and bentonite by a stirrer to obtain a mixture II; the rotating speed of the stirrer is 100r/min, and the stirring treatment time is 40 min;
s4, mixing the mixture I and the mixture II, and drying at 75 ℃ after mixing, wherein the water content of the blocky finished product obtained after drying is 3%;
s5, crushing the blocky finished product through a crusher to obtain particles with the particle diameter of 3mm, and carbonizing the particles to obtain a finished product repairing agent; the carbonization treatment condition is that the temperature is increased to 240 ℃ within 30min, and the temperature is kept for 30 min.
Example three: an active nutrient restoration agent for desertification soil, which comprises the following components by weight: 90 parts of plant straw, 50 parts of biological humic acid fertilizer, 40 parts of inorganic fertilizer, 15 parts of microbial strain, 10 parts of potassium fulvate and 160 parts of bentonite.
The preparation method of the embodiment comprises the following steps:
s1, weighing the raw materials in proportion, crushing and cutting the plant straws, and screening and filtering the crushed plant straws by using a screen to obtain powder materials, wherein the mesh number of the screen is 120 meshes;
s2, mixing the powder material, the microbial strain and the potassium fulvate, adding the mixture into a reaction tank for fermentation treatment, and obtaining a mixture I after fermentation; sealing the reaction tank, wherein the temperature in the reaction tank is 50 ℃, and the fermentation time is 96 hours;
s3, stirring and mixing an inorganic fertilizer, a biological humic acid fertilizer and bentonite by a stirrer to obtain a mixture II; the rotating speed of the stirrer is 140r/min, and the stirring treatment time is 60 min;
s4, mixing the mixture I and the mixture II, and drying at 95 ℃ after mixing, wherein the water content of the blocky finished product obtained after drying is 5%;
s5, crushing the blocky finished product through a crusher to obtain particles with the particle diameter of 5mm, and carbonizing the particles to obtain a finished product repairing agent; the carbonization treatment condition is that the temperature is increased to 260 ℃ within 40min, and the temperature is kept for 50 min.
The same desertification soil is selected to be respectively used for implementing the first embodiment, the second embodiment and the third embodiment, soil parameters are measured after 10 months, meanwhile, soil data which is not used with the repairing agent provided by the scheme is selected as a comparative example, and details are shown in the following table
| Example one | Example two | EXAMPLE III | Comparative example | |
| Organic matter content (%) | 3.2 | 3.1 | 3.4 | 2.5 |
| Soil Water content (%) | 14.7 | 15.2 | 14.9 | 6.7 |
| Miao height (cm) | 15.7 | 16.2 | 17.1 | 8.2 |
The organic matter content, the water content and the crop seedling height in the soil are obviously improved after the repairing agent provided by the invention is applied; the differences between the first embodiment, the second embodiment and the third embodiment are that the ratio of the components is different and the condition explanation in the processing process is different.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (9)
1. The active nutrient restoration agent for the desertification soil is characterized by comprising the following components in parts by weight: 70-90 parts of plant straw, 30-50 parts of biological humic acid fertilizer, 20-40 parts of inorganic fertilizer, 5-15 parts of microbial strain, 5-10 parts of potassium fulvate and 120-160 parts of bentonite.
2. The active nutrient restoration agent for the desertification soil according to claim 1, wherein the plant straw is any one or more of wheat straw, rice straw, corn straw and sorghum straw, and the microbial strains include but are not limited to AMF microbial agents, EM bacteria, composite bacillus subtilis, azotobacter and anti-adversity biocontrol bacteria.
3. The active nutrient restoration agent for the desertification soil according to claim 1, wherein the inorganic fertilizer is prepared by mixing a nitrogen fertilizer, a phosphate fertilizer and a potassium fertilizer according to a ratio of 1: 1-1.2: 0.9-1.1, and the bentonite is prepared by mixing calcium bentonite and sodium bentonite according to a ratio of 1: 0.5-0.6.
4. A method for preparing the active nutrient restoration agent for the desertification soil according to any one of the claims 1 to 3, which comprises the following steps:
s1, weighing the raw materials in proportion, crushing and cutting the plant straws, and screening and filtering the crushed plant straws by using a screen to obtain powder materials;
s2, mixing the powder material, the microbial strain and the potassium fulvate, adding the mixture into a reaction tank for fermentation treatment, and obtaining a mixture I after fermentation;
s3, stirring and mixing an inorganic fertilizer, a biological humic acid fertilizer and bentonite by a stirrer to obtain a mixture II;
s4, mixing the mixture I and the mixture II, and drying after mixing to obtain a blocky finished product;
and S5, crushing the blocky finished product by a crusher to obtain particles, and carbonizing the particles to obtain the finished product repairing agent.
5. The method for preparing the active nutrient restoration agent for the desertification soil as claimed in claim 4, wherein in the step S1, the plant straws are taken as dry straws, and the mesh number of the screen is 60-120 meshes.
6. The method for preparing an active nutrient restoration agent for desertification soil according to claim 4, wherein in the step S2, the reaction tank is sealed, the temperature inside the reaction tank is adjusted to 40-50 ℃, and the fermentation time is 60-96 h.
7. The method for preparing an active nutrient restoration agent for desertification soil according to claim 4, wherein in the step S3, the rotation speed of the stirrer is 100r/min to 140r/min, and the stirring treatment time is not less than 40 min.
8. The method for preparing the active nutrient restoration agent for the desertification soil as claimed in claim 4, wherein in the step S4, the mixed mixture I and the mixed mixture II are dried at a temperature of 75-95 ℃, and the water content of the blocky finished product is not higher than 5%.
9. The method for preparing the active nutrient restoration agent for the desertification soil according to the claim 4, wherein in the step S5, the average particle diameter of the block finished product after being crushed is 3mm to 5mm, the carbonization treatment condition is that the temperature is increased to 240 ℃ to 260 ℃ within 30min to 40min, and the temperature is kept for not less than 30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010968974.4A CN112028714A (en) | 2020-09-15 | 2020-09-15 | Active nutrient restoration agent for desertification soil and preparation method thereof |
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| CN202010968974.4A CN112028714A (en) | 2020-09-15 | 2020-09-15 | Active nutrient restoration agent for desertification soil and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116675565A (en) * | 2023-08-02 | 2023-09-01 | 北京蓟城智造科技有限公司 | Preparation method and equipment for ecological restoration soil matrix |
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| CN105418273A (en) * | 2015-12-25 | 2016-03-23 | 常州大学 | Preparation and application of rice straw biomass carbon-base release fertilizer |
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2020
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101245248A (en) * | 2008-03-28 | 2008-08-20 | 中国科学院过程工程研究所 | Production of desertification land improvement material with steam shatter stalk solid-state fermentation |
| CN102771217A (en) * | 2012-08-10 | 2012-11-14 | 北京市可持续发展促进会 | Combined ecological restoration method of deserted soil by use of plant and sludge-made biological carbon soil |
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| CN105418273A (en) * | 2015-12-25 | 2016-03-23 | 常州大学 | Preparation and application of rice straw biomass carbon-base release fertilizer |
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| CN108913150A (en) * | 2018-07-11 | 2018-11-30 | 佛山市陵谐环保科技有限公司 | A kind of preparation method of anti-current mistake type soil remediation agent material |
| CN109095996A (en) * | 2018-09-20 | 2018-12-28 | 中国农业科学院农业资源与农业区划研究所 | Sandy soil conditioner and the preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116675565A (en) * | 2023-08-02 | 2023-09-01 | 北京蓟城智造科技有限公司 | Preparation method and equipment for ecological restoration soil matrix |
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Application publication date: 20201204 |