CN108293352A - A kind of method of soil improvement - Google Patents
A kind of method of soil improvement Download PDFInfo
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- CN108293352A CN108293352A CN201810190094.1A CN201810190094A CN108293352A CN 108293352 A CN108293352 A CN 108293352A CN 201810190094 A CN201810190094 A CN 201810190094A CN 108293352 A CN108293352 A CN 108293352A
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- soil
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- diatom
- organic fertilizer
- soil improvement
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/04—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only applied in a physical form other than a solution or a grout, e.g. as granules or gases
-
- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
-
- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
-
- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/16—Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules
-
- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/20—Vinyl polymers
-
- 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
- C09K2101/00—Agricultural use
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of methods of soil improvement, include the following steps：Prepare organic fertilizer, soil is ploughed deeply, is flattened and is left unused；The present invention is by that by the addition of Liquid organic fertilizer, can carry out soil fertilising maintenance, and organic fertilizer can be allowed uniformly to penetrate into soil；There is firm effect to soil, alleviate that the soil is porous reaches and improved to the soil property of soil, allow it to be suitable for the purpose of the growth of plant, can quickly improve soil pollution state, it is especially best to heavy metal pollution effect；Soil ventilation water-retaining property improves, and soil carbon sink increases；Improve the undesirable condition of soil, it is directly changed the food quality planted out, it is beneficial to national healthy, and the moisture in air and soil can not only be absorbed, and a large amount of rainwater can be securely preserved, then slow release, it is utilized for plant growth, since the agent has water swelling, the effect for the contraction that discharges water, so also increasing soil aperture, it is therefore prevented that soil hardening.
Description
Technical field
The present invention relates to technical field of land improvement, specially a kind of method of soil improvement.
Background technology
With the fast development of economic society and the quickening of urbanization process, Chinese basic facilities construction speed is also therewith
Accelerate, a large amount of bare slope is formd because implementing the construction projects such as traffic, water conservancy, mine, electric power.These bare slopes are not
Landscape Ecological is only affected, destroys the balance of nature of this area, and some slope surfaces are there is also serious
Matter Hidden hazrads influence the safety and stability of major project, or even can endanger the safety of life and property of the people.Therefore, side slope is green
Changing has highly important environment protection significance and realistic meaning, and slope greening can not only beautify the environment, water conservation, but also can be to prevent
Only soil erosion and landslide, purification air.Have many places at present and starts Efforts To Develop slope greening.Soil improvement is to be directed to
The bad quality and structure of soil take corresponding physics and biological control measure, improve soil property, increase soil fertility, and increase
Crop yield, and improve the process of human survival soil environment.Arable land is increasingly reduced into a global problem,
Exploitation Coastal beach, inland salt-soda soil, make full use of existing resource, be a good selection.China's cultivated area is limited, and
All kinds of Coastal beach there are about 8,000,000 mu or more, saline and alkaline is in thousand point three or more, 8/1000ths salt-soda soils below because of saliferous
It measures big or idle or is utilized reluctantly, utilized reluctantly, yield is also very low, economic benefit is very bad.
It is therefore desirable to carry out soil improvement to that can improve regenerated soil.
So how to design a kind of method of soil improvement, becoming us will currently solve the problems, such as.
Invention content
The present invention provides a kind of method of soil improvement, by that by the addition of Liquid organic fertilizer, can be applied to soil
Fertilizer maintenance, and organic fertilizer can be allowed uniformly to penetrate into soil；There is firm effect to soil, alleviate that the soil is porous reaches
The soil property of soil is improved, allows it to be suitable for the purpose of the growth of plant, can quickly improve soil pollution state, special counterweight
Metallic pollution effect is best；Soil ventilation water-retaining property improves, and soil carbon sink increases, and the agriculture of soil is residual and heavy metal has all been degraded to
Organic conversion of soil can be rapidly completed in machine planting requirement；The soil improvement period is short, quick, cost is controllable, substantially at six
The time of the moon can reach organic plantation standard；The undesirable condition for improving soil, is directly changed the food quality planted out, is beneficial to
National healthy, and the moisture in air and soil can not only be absorbed, and a large amount of rainwater can securely be preserved, then
Slow release is utilized for plant growth, since the agent has water swelling, the effect for the contraction that discharges water, so also increase soil
Hole, it is therefore prevented that soil hardening can effectively solve the problems in above-mentioned background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of method of soil improvement, including walk as follows
Suddenly：
1) organic fertilizer is prepared：First cow dung and stalk are attached to vibrational energy on cylinder, using shock, by pellet powder
It is broken, and freely fall in the bucket of lower section, it ferments after crushing, moisture is adjusted in fermentation process, add urea and hair
Yeast-like fungi agent carries out pile-turning and stirring, i.e., progress compost fermentation is decomposed after crushing organic materials, obtains decomposed organic fertilizer,
2) soil is ploughed deeply：Decomposed organic fertilizer is sufficiently mixed with phosphate fertilizer, is uniformly spread fertilizer over the fields in the earth's surface of smooth mistake, it is then right
Idle soil is ploughed deeply, depth 50-70cm；During ploughing deeply, inorganic adsorbent, chelating agent and biology are uniformly applied
Adsorbent；And plough under soil；
3) it flattens：Soil after ploughing deeply is flattened by the land smoothing machine of electric drive, wherein land smoothing machine：It fills
It irrigates：Smooth, depth irrigation of progress is carried out to soil；
4) it leaves unused：By the soil handled well without any plantation, sand, organic matter, acid soil flora, organic is added
Body decomposes flora, nitrogen fixation flora, organic fertilizer and soil reclamation water retention agent, leaves unused the 4-6 months；After the 4-6 months, it can be planted again,
In two years, application of organic fertilizers, you can.
According to above-mentioned technical proposal, the inorganic adsorbent prepare raw material be clay, perlite, vermiculite, bloating shale and
Natural zeolite.
According to above-mentioned technical proposal, the preparation method of the chelating agent is is dissolved in maleimide in ionized water, and profit
Solution ph is adjusted with sodium hydroxide solution；Under condition of ice bath, it is gradually added sodium persulfate aqueous solution；Wherein rate of addition is
For standard liquid droping speed；Certain time is finally reacted under stirring to get to chelating agent.
According to above-mentioned technical proposal, the preparation method of the biological adsorption agent is that raw material is sea water medium, diatom source, gives up
Green tea slag, epoxychloropropane and dimethylamine are abandoned, diatom liquid is made by sea water medium and diatom source；Then by centrifuging to silicon
Algae solution body is handled, and diatom concentrate is obtained；Dry diatom concentrate, you can diatom dry powder is obtained, then again by green tea slag
Wash, dry, drying, crush after sequentially add epoxychloropropane, dimethylamine and diatom dry powder and be modified reaction, finally by
Washing and drying can obtain biological adsorption agent.
According to above-mentioned technical proposal, decomposed Rate of Organic Fertilizer is 800-1500kg/ mus in the step 2), Phosphorus Fertilizer Rates
It is 50-100kg/ mus.
According to above-mentioned technical proposal, the preparation method of the soil reclamation water retention agent by acrylic acid, neutralizer and initiator,
After inverted suspension polymerization, first passes through dry and then crushes again obtained, you can.
According to above-mentioned technical proposal, the drying and crushing is specially that first object to be dried is positioned among a storage tank；So
Backward storage tank heating, predetermined temperature is increased to by the temperature in storage tank；Air some or all of in extraction storage tank,
So that the solvent volatilization on object to be dried, finally obtains desciccate, then obtained desciccate is put into mixing vessel,
The mixed support agent in desciccate；High pressure gas is heated；It is fed through heating process into pulverizing chamber and heats
High pressure gas；The powder that adjuvant is mixed in mixed processes that specified amount is put into pulverizing chamber, keeps crushing indoor auxiliary
The concentration ratio of auxiliary agent concentration of catching fire is low；Finally utilize the gas generated in pulverizing chamber by the high pressure gas supplied from supply step
Stream, powder is crushed, you can.
Compared with prior art, beneficial effects of the present invention：By that by the addition of Liquid organic fertilizer, can be carried out to soil
Fertilising maintenance, and organic fertilizer can be allowed uniformly to penetrate into soil；There is firm effect to soil, alleviate that the soil is porous reaches
It is improved to the soil property to soil, allows it to be suitable for the purpose of the growth of plant, can quickly improve soil pollution state, it is especially right
Heavy metal pollution effect is best；Soil ventilation water-retaining property improves, and soil carbon sink increases, and the agriculture of soil is residual and heavy metal is all degraded to
Organic conversion of soil can be rapidly completed in organic planting requirement；The soil improvement period is short, quick, cost is controllable, substantially six
A month time can reach organic plantation standard；The undesirable condition for improving soil, is directly changed the food quality planted out, beneficial
In national healthy, and the moisture in air and soil can not only be absorbed, and a large amount of rainwater can securely be preserved, so
Slow release afterwards is utilized for plant growth, since the agent has water swelling, the effect for the contraction that discharges water, so also increase soil
Earth hole, it is therefore prevented that soil hardening.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
In the accompanying drawings：
Fig. 1 is the flow chart of the present invention.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment：As shown in Figure 1, the present invention provides a kind of method of soil improvement, include the following steps：
1) organic fertilizer is prepared：First cow dung and stalk are attached to vibrational energy on cylinder, using shock, by pellet powder
It is broken, and freely fall in the bucket of lower section, it ferments after crushing, moisture is adjusted in fermentation process, add urea and hair
Yeast-like fungi agent carries out pile-turning and stirring, i.e., progress compost fermentation is decomposed after crushing organic materials, obtains decomposed organic fertilizer,
2) soil is ploughed deeply：Decomposed organic fertilizer is sufficiently mixed with phosphate fertilizer, is uniformly spread fertilizer over the fields in the earth's surface of smooth mistake, it is then right
Idle soil is ploughed deeply, depth 50-70cm；During ploughing deeply, inorganic adsorbent, chelating agent and biology are uniformly applied
Adsorbent；And plough under soil；
3) it flattens：Soil after ploughing deeply is flattened by the land smoothing machine of electric drive, wherein land smoothing machine：It fills
It irrigates：Smooth, depth irrigation of progress is carried out to soil；
4) it leaves unused：By the soil handled well without any plantation, sand, organic matter, acid soil flora, organic is added
Body decomposes flora, nitrogen fixation flora, organic fertilizer and soil reclamation water retention agent, leaves unused the 4-6 months；After the 4-6 months, it can be planted again,
In two years, application of organic fertilizers, you can.
According to above-mentioned technical proposal, the inorganic adsorbent prepare raw material be clay, perlite, vermiculite, bloating shale and
Natural zeolite.
According to above-mentioned technical proposal, the preparation method of the chelating agent is is dissolved in maleimide in ionized water, and profit
Solution ph is adjusted with sodium hydroxide solution；Under condition of ice bath, it is gradually added sodium persulfate aqueous solution；Wherein rate of addition is
For standard liquid droping speed；Certain time is finally reacted under stirring to get to chelating agent.
According to above-mentioned technical proposal, the preparation method of the biological adsorption agent is that raw material is sea water medium, diatom source, gives up
Green tea slag, epoxychloropropane and dimethylamine are abandoned, diatom liquid is made by sea water medium and diatom source；Then by centrifuging to silicon
Algae solution body is handled, and diatom concentrate is obtained；Dry diatom concentrate, you can diatom dry powder is obtained, then again by green tea slag
Wash, dry, drying, crush after sequentially add epoxychloropropane, dimethylamine and diatom dry powder and be modified reaction, finally by
Washing and drying can obtain biological adsorption agent.
According to above-mentioned technical proposal, decomposed Rate of Organic Fertilizer is 800-1500kg/ mus in the step 2), Phosphorus Fertilizer Rates
It is 50-100kg/ mus.
According to above-mentioned technical proposal, the preparation method of the soil reclamation water retention agent by acrylic acid, neutralizer and initiator,
After inverted suspension polymerization, first passes through dry and then crushes again obtained, you can.
According to above-mentioned technical proposal, the drying and crushing is specially that first object to be dried is positioned among a storage tank；So
Backward storage tank heating, predetermined temperature is increased to by the temperature in storage tank；Air some or all of in extraction storage tank,
So that the solvent volatilization on object to be dried, finally obtains desciccate, then obtained desciccate is put into mixing vessel,
The mixed support agent in desciccate；High pressure gas is heated；It is fed through heating process into pulverizing chamber and heats
High pressure gas；The powder that adjuvant is mixed in mixed processes that specified amount is put into pulverizing chamber, keeps crushing indoor auxiliary
The concentration ratio of auxiliary agent concentration of catching fire is low；Finally utilize the gas generated in pulverizing chamber by the high pressure gas supplied from supply step
Stream, powder is crushed, you can.
Based on above-mentioned, it is an advantage of the current invention that by by the addition of Liquid organic fertilizer, fertilising can be carried out to soil and is supported
Shield, and organic fertilizer can be allowed uniformly to penetrate into soil；There is firm effect to soil, alleviate that the soil is porous reaches to soil
The soil property of earth is improved, and is allowed it to be suitable for the purpose of the growth of plant, can quickly be improved soil pollution state, especially to heavy metal
Pollution effects are best；Soil ventilation water-retaining property improves, and soil carbon sink increases, and the agriculture of soil is residual and heavy metal has all been degraded to machine
It plants and requires, organic conversion of soil can be rapidly completed；The soil improvement period is short, quick, cost is controllable, substantially at six months
Time can reach organic plantation standard；The undesirable condition for improving soil, is directly changed the food quality planted out, is beneficial to national
Health, and the moisture in air and soil can not only be absorbed, and a large amount of rainwater can securely be preserved, then slowly
Release is utilized for plant growth, since the agent has water swelling, the effect for the contraction that discharges water, so soil aperture is also increased,
Prevent soil hardening.
Finally it should be noted that：The foregoing is merely the preferred embodiments of the present invention, are not intended to restrict the invention, to the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, still can be with for the technology patient of this field
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. a kind of method of soil improvement, it is characterised in that：Include the following steps：
1) organic fertilizer is prepared：First cow dung and stalk are attached to vibrational energy on cylinder, using shock, pellet is crushed, and
It freely falls in the bucket of lower section, ferments after crushing, moisture is adjusted in fermentation process, add urea and fermenting agent
Carrying out pile-turning and stirring, i.e., progress compost fermentation is decomposed after crushing organic materials, obtains decomposed organic fertilizer,
2) soil is ploughed deeply：Decomposed organic fertilizer is sufficiently mixed with phosphate fertilizer, is uniformly spread fertilizer over the fields in the earth's surface of smooth mistake, then to the free time
Soil ploughed deeply, depth 50-70cm；During ploughing deeply, inorganic adsorbent, chelating agent and biological adsorption are uniformly applied
Agent；And plough under soil；
3) it flattens：Soil after ploughing deeply is flattened by the land smoothing machine of electric drive, wherein land smoothing machine：It irrigates：It is right
Soil carries out smooth, depth irrigation of progress；
4) it leaves unused：By the soil handled well without any plantation, sand, organic matter, acid soil flora, organism point is added
Flora, nitrogen fixation flora, organic fertilizer and soil reclamation water retention agent are solved, is left unused the 4-6 months；After the 4-6 months, it can be planted again, two
In year, application of organic fertilizers, you can.
2. a kind of method of soil improvement according to claim 1, it is characterised in that：The inorganic adsorbent prepares raw material
For clay, perlite, vermiculite, bloating shale and natural zeolite.
3. a kind of method of soil improvement according to claim 1, it is characterised in that：The preparation method of the chelating agent is
It is dissolved in maleimide in ionized water, and solution ph is adjusted using sodium hydroxide solution；Under condition of ice bath, gradually add
Enter sodium persulfate aqueous solution；Wherein rate of addition is standard liquid droping speed；It is finally reacted certain time under stirring, i.e.,
Obtain chelating agent.
4. a kind of method of soil improvement according to claim 1, it is characterised in that：The preparation side of the biological adsorption agent
Method is that raw material is sea water medium, diatom source, discarded green tea slag, epoxychloropropane and dimethylamine, passes through sea water medium and silicon
Diatom liquid is made in algae source；Then diatom liquid is handled by centrifugation, obtains diatom concentrate；Dry diatom concentrate,
Can be obtained diatom dry powder, then green tea wash heat is washed again, is dried, is dried, crush after sequentially add epoxychloropropane, dimethylamine
It is modified reaction with diatom dry powder, biological adsorption agent can be obtained finally by washing and drying.
5. a kind of method of soil improvement according to claim 1, it is characterised in that：It is decomposed organic in the step 2)
Fertile dosage is 800-1500kg/ mus, and Phosphorus Fertilizer Rates are 50-100kg/ mus.
6. a kind of method of soil improvement according to claim 1, it is characterised in that：The system of the soil reclamation water retention agent
Preparation Method is by acrylic acid, neutralizer and initiator, after inverted suspension polymerization, first pass through it is dry then crush again it is obtained,
.
7. a kind of method of soil improvement according to claim 6, it is characterised in that：The drying and crushing specially first will
Object to be dried is positioned among a storage tank；Then it is heated to storage tank, the temperature in storage tank is increased to predetermined temperature；
Air some or all of in extraction storage tank, so that the solvent volatilization on object to be dried, finally obtains desciccate, then will
Obtained desciccate is put into mixing vessel, the mixed support agent in desciccate；High pressure gas is heated；To crushing
Interior is fed through heating process and the high pressure gas that heats；Being mixed in mixed processes for specified amount is put into pulverizing chamber
The powder of adjuvant keeps the concentration ratio of the indoor adjuvant of crushing concentration of catching fire low；It finally utilizes by being supplied from supply step
The air-flow that is generated in pulverizing chamber of high pressure gas, powder is crushed, you can.
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| CN201810190094.1A CN108293352A (en) | 2018-03-08 | 2018-03-08 | A kind of method of soil improvement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168386A (en) * | 2018-08-14 | 2019-01-11 | 江苏丘陵地区镇江农业科学研究所 | A kind of method of quick improvement peach garden soil |
| CN110521321A (en) * | 2019-08-30 | 2019-12-03 | 水利部牧区水利科学研究所 | It is a kind of for the surface soil alternative mixtures of open-pit mine blast and its application |
| CN112243625A (en) * | 2020-09-28 | 2021-01-22 | 嘉兴易久农业科技有限责任公司 | Soil organic matter improvement method and organic fertilizer used by same |
| CN112272986A (en) * | 2020-09-14 | 2021-01-29 | 上海特石生态科技有限公司 | Two-step soil rapid improvement technology based on in-situ transformation |
| CN114455994A (en) * | 2020-11-02 | 2022-05-10 | 福建御研农业科技有限公司 | Formula of bio-organic fertilizer for improving sandy soil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168386A (en) * | 2018-08-14 | 2019-01-11 | 江苏丘陵地区镇江农业科学研究所 | A kind of method of quick improvement peach garden soil |
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| CN110521321A (en) * | 2019-08-30 | 2019-12-03 | 水利部牧区水利科学研究所 | It is a kind of for the surface soil alternative mixtures of open-pit mine blast and its application |
| CN112272986A (en) * | 2020-09-14 | 2021-01-29 | 上海特石生态科技有限公司 | Two-step soil rapid improvement technology based on in-situ transformation |
| CN112243625A (en) * | 2020-09-28 | 2021-01-22 | 嘉兴易久农业科技有限责任公司 | Soil organic matter improvement method and organic fertilizer used by same |
| CN114455994A (en) * | 2020-11-02 | 2022-05-10 | 福建御研农业科技有限公司 | Formula of bio-organic fertilizer for improving sandy soil |
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Application publication date: 20180720 |