CN109678589A - The organic fertilizer and preparation method thereof of cadmium content in a kind of reduction soil - Google Patents
The organic fertilizer and preparation method thereof of cadmium content in a kind of reduction soil Download PDFInfo
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- CN109678589A CN109678589A CN201811358645.7A CN201811358645A CN109678589A CN 109678589 A CN109678589 A CN 109678589A CN 201811358645 A CN201811358645 A CN 201811358645A CN 109678589 A CN109678589 A CN 109678589A
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- excrement
- organic fertilizer
- cadmium content
- soil
- bacteria agent
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Soil Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of organic fertilizers of cadmium content in reduction soil, including following component (by mass percentage): urea: 2~4%, potassium sulfate: 1~5%, sodium nitrate: 1~3%, Diammonium phosphate (DAP): 2~6%, sodium selenite: 1.5~2.5%, nitro humus acid: 15~17%, stalk: 23~25%, bacteria agent: 3~5%, excrement: 30~40%, surplus is water.The invention also discloses a kind of preparation methods of the organic fertilizer of cadmium content in reduction soil, including seven steps.The present invention mainly uses micro- fertile (iron, manganese, zinc, siliceous fertilizer) and organic matter resistance cadmium: micro- fertilizer (iron, manganese, zinc, siliceous fertilizer drop cadmium principle: absorption of the crop to the mineral elements such as cadmium and iron, the zinc approach common there are part, when certain content of beary metal is higher, more serious to soil pollution in soil, when endangering low compared with light and concentration to crop using another kind to the advantageous microelement antagonism of plant growth it.
Description
Technical field
The present invention relates to organic fertilizer technical fields, specially a kind of to reduce the organic fertilizer of cadmium content and its preparation side in soil
Method.
Background technique
Cadmium is the trace heavy metals of a kind of pair of toxic effect of animals and plants, extremely strong to human toxicity, easily by human body
Absorb, cadmium have high mobility and low poisoning concentration, long half time, cannot by the microbial degradation in soil, easily by
Plant absorption is simultaneously accumulated, and pollution is irreversible process, more than the yield and quality that will affect crop after certain limit.
In recent years, be not good at since the unreasonable discharge of Industrial " three Waste ", solid waste (especially municipal refuse) are handled,
Sewage irrigation, the fertilizer of agricultural sludge and application containing heavy metal element etc., result in heavy metal in soil cadmium content sharply
Increase, farmland cadmium (Cd) pollution is caused to get worse.When crop growth is in the soil of cadmium pollution, cadmium is in its root, stem, leaf
And largely accumulated in seed, the growth and development and quality of crops are seriously affected, endangers animals and humans through food chain enrichment
Health.
Therefore, inventing a kind of organic fertilizer and preparation method thereof of cadmium content in reduction soil, have very much must to solve the above problems
It wants.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of organic fertilizer and preparation method thereof of cadmium content in reduction soil
The problem of heavy metal cadmium in some soil influences the growth and development and quality of crops.
To achieve the above object, the invention provides the following technical scheme: a kind of organic fertilizer for reducing cadmium content in soil, packet
Include following component (by mass percentage): urea: 2~4%, potassium sulfate: 1~5%, sodium nitrate: 1~3%, Diammonium phosphate (DAP): 2~6%,
Sodium selenite: 1.5~2.5%, nitro humus acid: 15~17%, stalk: 23~25%, bacteria agent: 3~5%, excrement: 30~
40%, surplus is water.
Preferably, the excrement are as follows: the excrement of the excrement of the mankind, the excrement of livestock or poultry.
Preferably, the bacteria agent are as follows: one of sulfide-oxidizing enzyme microbial inoculum, fixed nitrogen bacteria agent, nitrifying bacterial agent, two
Kind is whole.
Preferably, including following component (by mass percentage): urea: 2%, potassium sulfate: 5%, sodium nitrate: 1%, di(2-ethylhexyl)phosphate
Ammonium: 6%, sodium selenite: 1.5%, nitro humus acid: 17%, stalk: 23%, bacteria agent: 5%, excrement: 30%, surplus is water.
Preferably, including following component (by mass percentage): urea: 3%, potassium sulfate: 3%, sodium nitrate: 2%, di(2-ethylhexyl)phosphate
Ammonium: 4%, sodium selenite: 2%, nitro humus acid: 16%, stalk: 24%, bacteria agent: 4%, excrement: 35%, surplus is water.
Preferably, including following component (by mass percentage): urea: 4%, potassium sulfate: 1%, sodium nitrate: 3%, di(2-ethylhexyl)phosphate
Ammonium: 2%, sodium selenite: 2.5%, nitro humus acid: 15%, stalk: 25%, bacteria agent: 3%, excrement: 40%, surplus is water.
The preparation method of the organic fertilizer of cadmium content in a kind of reduction soil, comprising the following steps:
Step 1: urea, Diammonium phosphate (DAP), sodium nitrate, potassium sulfate, sodium selenite, excrement, stalk, nitro humic are taken by weight
Acid and bacteria agent, it is spare respectively；
Step 2: pouring into reaction kettle after Diammonium phosphate (DAP) is heated to 60~70 DEG C, then potassium sulfate and sodium nitrate are added to reaction
Stirring and dissolving in kettle, compressive reaction 1.5~1.7 hours；
Step 3: and then sodium selenite and urea are added in the reaction kettle in step 2, it is carried out under conditions of 70~90 DEG C
Association reaction 1~3 hour；
Step 4: it is again that reactant obtained in bacteria agent and step 3 is soluble in water, in blender after evenly mixing into
Biological germ fertilizer particle is made in row drying crystalline, spare；
Step 5: stalk is crushed, and is mixed with spare excrement, humic acid, is had using fermentor Rapid Fermentation is decomposed at biology
Machine function conditioner, it is spare；
Step 6: spare biological germ fertilizer particle and biological organic function conditioner are crushed, and water is added to be mixed, is obtained
Mixture, it is spare；
Step 7: mixture is granulated using matrix composite technology multigraph press, through centrifugal drying, screening, is reduced in soil
The organic fertilizer of cadmium content.
Preferably, the time stirred in the step 4 is 30~50min, and the temperature of stirring is 45~55 DEG C.
Preferably, the time fermented in the step 5 is 4~6 hours, and the temperature of fermentation is 28 DEG C of ferment at constant temperature.
Compared with prior art, the beneficial effects of the present invention are: the present invention mainly use micro- fertile (iron, manganese, zinc, siliceous fertilizer) and
Organic matter hinders cadmium: 1, (cadmium principle drops in iron, manganese, zinc, siliceous fertilizer: there are portions for absorption of the crop to the mineral elements such as cadmium and iron, zinc for micro- fertilizer
Divide common approach, when certain content of beary metal is higher, more serious to soil pollution in soil, using another kind to work
When object harm is low compared with light and concentration to the advantageous microelement antagonism of plant growth it；2, cadmium principle drops in organic matter: to cadmium pollution
Soil in apply organic matter, on the one hand can increase soil fertility, improve soil property, on the other hand can preferably mitigate cadmium again
Biological effectiveness；Biological organic fertilizer of the invention can prevent charcoal from hardening using caused soil, and can effectively change
The pollution of cadmium in kind soil.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1:
The organic fertilizer of cadmium content in a kind of reduction soil, including following component (by mass percentage): urea: 2%, potassium sulfate:
5%, sodium nitrate: 1%, Diammonium phosphate (DAP): 6%, sodium selenite: 1.5%, nitro humus acid: 17%, stalk: 23%, bacteria agent: 5%,
Excrement: 30%, surplus is water.
Wherein, excrement are as follows: the excrement of the excrement of the mankind, the excrement of livestock or poultry；Bacteria agent are as follows: sulfide-oxidizing enzyme bacterium
One of agent, fixed nitrogen bacteria agent, nitrifying bacterial agent, two kinds or whole.
The preparation method of the organic fertilizer of cadmium content in a kind of reduction soil, comprising the following steps:
Step 1: urea, Diammonium phosphate (DAP), sodium nitrate, potassium sulfate, sodium selenite, excrement, stalk, nitro humic are taken by weight
Acid and bacteria agent, it is spare respectively；
Step 2: it is poured into reaction kettle after Diammonium phosphate (DAP) is heated to 60 DEG C, then potassium sulfate and sodium nitrate is added in reaction kettle
Stirring and dissolving, compressive reaction 1.5 hours；
Step 3: and then sodium selenite and urea are added in the reaction kettle in step 2, it is combined under conditions of 70 DEG C
Reaction 1 hour；
Step 4: it is again that reactant obtained in bacteria agent and step 3 is soluble in water, in blender after evenly mixing into
Row drying crystalline, the time of stirring are 30min, and the temperature of stirring is 45 DEG C, and biological germ fertilizer particle is made, spare；
Step 5: stalk is crushed, and is mixed with spare excrement, humic acid, is had using fermentor Rapid Fermentation is decomposed at biology
Machine function conditioner, spare, the time of fermentation is 4 hours, and the temperature of fermentation is 28 DEG C of ferment at constant temperature；
Step 6: spare biological germ fertilizer particle and biological organic function conditioner are crushed, and water is added to be mixed, is obtained
Mixture, it is spare；
Step 7: mixture is granulated using matrix composite technology multigraph press, through centrifugal drying, screening, is reduced in soil
The organic fertilizer of cadmium content.
Embodiment 2:
The organic fertilizer of cadmium content in a kind of reduction soil, including following component (by mass percentage): urea: 3%, potassium sulfate:
3%, sodium nitrate: 2%, Diammonium phosphate (DAP): 4%, sodium selenite: 2%, nitro humus acid: 16%, stalk: 24%, bacteria agent: 4%, excrement
Just: 35%, surplus is water.
Wherein, excrement are as follows: the excrement of the excrement of the mankind, the excrement of livestock or poultry；Bacteria agent are as follows: sulfide-oxidizing enzyme bacterium
One of agent, fixed nitrogen bacteria agent, nitrifying bacterial agent, two kinds or whole.
The preparation method of the organic fertilizer of cadmium content in a kind of reduction soil, comprising the following steps:
Step 1: urea, Diammonium phosphate (DAP), sodium nitrate, potassium sulfate, sodium selenite, excrement, stalk, nitro humic are taken by weight
Acid and bacteria agent, it is spare respectively；
Step 2: it is poured into reaction kettle after Diammonium phosphate (DAP) is heated to 65 DEG C, then potassium sulfate and sodium nitrate is added in reaction kettle
Stirring and dissolving, compressive reaction 1.6 hours；
Step 3: and then sodium selenite and urea are added in the reaction kettle in step 2, it is combined under conditions of 80 DEG C
Reaction 2 hours；
Step 4: it is again that reactant obtained in bacteria agent and step 3 is soluble in water, in blender after evenly mixing into
Row drying crystalline, the time of stirring are 40min, and the temperature of stirring is 50 DEG C, and biological germ fertilizer particle is made, spare；
Step 5: stalk is crushed, and is mixed with spare excrement, humic acid, is had using fermentor Rapid Fermentation is decomposed at biology
Machine function conditioner, spare, the time of fermentation is 5 hours, and the temperature of fermentation is 28 DEG C of ferment at constant temperature；
Step 6: spare biological germ fertilizer particle and biological organic function conditioner are crushed, and water is added to be mixed, is obtained
Mixture, it is spare；
Step 7: mixture is granulated using matrix composite technology multigraph press, through centrifugal drying, screening, is reduced in soil
The organic fertilizer of cadmium content.
Embodiment 3:
The organic fertilizer of cadmium content in a kind of reduction soil, including following component (by mass percentage): urea: 4%, potassium sulfate:
1%, sodium nitrate: 3%, Diammonium phosphate (DAP): 2%, sodium selenite: 2.5%, nitro humus acid: 15%, stalk: 25%, bacteria agent: 3%,
Excrement: 40%, surplus is water.
Wherein, excrement are as follows: the excrement of the excrement of the mankind, the excrement of livestock or poultry；Bacteria agent are as follows: sulfide-oxidizing enzyme bacterium
One of agent, fixed nitrogen bacteria agent, nitrifying bacterial agent, two kinds or whole.
The preparation method of the organic fertilizer of cadmium content in a kind of reduction soil, comprising the following steps:
Step 1: urea, Diammonium phosphate (DAP), sodium nitrate, potassium sulfate, sodium selenite, excrement, stalk, nitro humic are taken by weight
Acid and bacteria agent, it is spare respectively；
Step 2: it is poured into reaction kettle after Diammonium phosphate (DAP) is heated to 70 DEG C, then potassium sulfate and sodium nitrate is added in reaction kettle
Stirring and dissolving, compressive reaction 1.7 hours；
Step 3: and then sodium selenite and urea are added in the reaction kettle in step 2, it is combined under conditions of 90 DEG C
Reaction 3 hours；
Step 4: it is again that reactant obtained in bacteria agent and step 3 is soluble in water, in blender after evenly mixing into
Row drying crystalline, the time of stirring are 50min, and the temperature of stirring is 55 DEG C, and biological germ fertilizer particle is made, spare；
Step 5: stalk is crushed, and is mixed with spare excrement, humic acid, is had using fermentor Rapid Fermentation is decomposed at biology
Machine function conditioner, spare, the time of fermentation is 6 hours, and the temperature of fermentation is 28 DEG C of ferment at constant temperature；
Step 6: spare biological germ fertilizer particle and biological organic function conditioner are crushed, and water is added to be mixed, is obtained
Mixture, it is spare；
Step 7: mixture is granulated using matrix composite technology multigraph press, through centrifugal drying, screening, is reduced in soil
The organic fertilizer of cadmium content.
The organic fertilizer for reducing cadmium content in soil can be made by above three groups of embodiments, wherein second group of embodiment
The effect that organic fertilizer obtained reduces cadmium content in soil is best.In organic matter the presence of a large amount of functional groups and have it is biggish
Specific surface area can promote the formed cadmium organic complex of cadmium ion in soil, increases soil to the adsorption capacity of cadmium, improves
Soil absorbs the resiliency of cadmium to reduce rice to it, it is hindered to enter food chain.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of organic fertilizer for reducing cadmium content in soil, which is characterized in that including following component (by mass percentage): urine
Element: 2~4%, potassium sulfate: 1~5%, sodium nitrate: 1~3%, Diammonium phosphate (DAP): 2~6%, sodium selenite: 1.5~2.5%, nitro humic
Acid: 15~17%, stalk: 23~25%, bacteria agent: 3~5%, excrement: 30~40%, surplus is water.
2. a kind of organic fertilizer for reducing cadmium content in soil according to claim 1, it is characterised in that: the excrement are as follows:
The excrement of the excrement of the mankind, the excrement of livestock or poultry.
3. a kind of organic fertilizer for reducing cadmium content in soil according to claim 1, it is characterised in that: the bacteria agent
Are as follows: one of sulfide-oxidizing enzyme microbial inoculum, fixed nitrogen bacteria agent, nitrifying bacterial agent, two kinds or whole.
4. a kind of organic fertilizer for reducing cadmium content in soil according to claim 1, which is characterized in that including following component
(by mass percentage): urea: 2%, potassium sulfate: 5%, sodium nitrate: 1%, Diammonium phosphate (DAP): 6%, sodium selenite: 1.5%, nitro humic
Acid: 17%, stalk: 23%, bacteria agent: 5%, excrement: 30%, surplus is water.
5. a kind of organic fertilizer for reducing cadmium content in soil according to claim 1, which is characterized in that including following component
(by mass percentage): urea: 3%, potassium sulfate: 3%, sodium nitrate: 2%, Diammonium phosphate (DAP): 4%, sodium selenite: 2%, nitro humic
Acid: 16%, stalk: 24%, bacteria agent: 4%, excrement: 35%, surplus is water.
6. a kind of organic fertilizer for reducing cadmium content in soil according to claim 1, which is characterized in that including following component
(by mass percentage): urea: 4%, potassium sulfate: 1%, sodium nitrate: 3%, Diammonium phosphate (DAP): 2%, sodium selenite: 2.5%, nitro is rotten
Grow acid: 15%, stalk: 25%, bacteria agent: 3%, excrement: 40%, surplus is water.
7. the preparation method of the organic fertilizer of cadmium content, feature exist in a kind of reduction soil according to claims 1 to 6
In, comprising the following steps:
Step 1: urea, Diammonium phosphate (DAP), sodium nitrate, potassium sulfate, sodium selenite, excrement, stalk, nitro humic are taken by weight
Acid and bacteria agent, it is spare respectively；
Step 2: pouring into reaction kettle after Diammonium phosphate (DAP) is heated to 60~70 DEG C, then potassium sulfate and sodium nitrate are added to reaction
Stirring and dissolving in kettle, compressive reaction 1.5~1.7 hours；
Step 3: and then sodium selenite and urea are added in the reaction kettle in step 2, it is carried out under conditions of 70~90 DEG C
Association reaction 1~3 hour；
Step 4: it is again that reactant obtained in bacteria agent and step 3 is soluble in water, in blender after evenly mixing into
Biological germ fertilizer particle is made in row drying crystalline, spare；
Step 5: stalk is crushed, and is mixed with spare excrement, humic acid, is had using fermentor Rapid Fermentation is decomposed at biology
Machine function conditioner, it is spare；
Step 6: spare biological germ fertilizer particle and biological organic function conditioner are crushed, and water is added to be mixed, is obtained
Mixture, it is spare；
Step 7: mixture is granulated using matrix composite technology multigraph press, through centrifugal drying, screening, is reduced in soil
The organic fertilizer of cadmium content.
8. a kind of preparation method for reducing the organic fertilizer of cadmium content in soil according to claim 7, it is characterised in that: institute
Stating the time stirred in step 4 is 30~50min, and the temperature of stirring is 45~55 DEG C.
9. a kind of preparation method for reducing the organic fertilizer of cadmium content in soil according to claim 7, it is characterised in that: institute
Stating the time fermented in step 5 is 4~6 hours, and the temperature of fermentation is 28 DEG C of ferment at constant temperature.
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| CN201811358645.7A CN109678589A (en) | 2018-11-15 | 2018-11-15 | The organic fertilizer and preparation method thereof of cadmium content in a kind of reduction soil |
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| CN201811358645.7A CN109678589A (en) | 2018-11-15 | 2018-11-15 | The organic fertilizer and preparation method thereof of cadmium content in a kind of reduction soil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140620A (en) * | 2019-05-08 | 2019-08-20 | 广州新农科肥业科技有限公司 | A method of resistance control Chinese Drug Rhizomes of Coptis cadmium pollution |
| CN111704512A (en) * | 2020-06-29 | 2020-09-25 | 广西壮族自治区农业科学院 | Preparation method of selenium-rich cadmium-resistant soil conditioner |
| CN112745173A (en) * | 2021-02-05 | 2021-05-04 | 湖南省辰河生态农业发展有限公司 | Cadmium-reducing soil improvement functional organic fertilizer |
| WO2021159619A1 (en) * | 2020-02-10 | 2021-08-19 | 浙江大学 | Heavy metal safety diagnosis system and method for crop associated with selenium and cadmium |
-
2018
- 2018-11-15 CN CN201811358645.7A patent/CN109678589A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140620A (en) * | 2019-05-08 | 2019-08-20 | 广州新农科肥业科技有限公司 | A method of resistance control Chinese Drug Rhizomes of Coptis cadmium pollution |
| WO2021159619A1 (en) * | 2020-02-10 | 2021-08-19 | 浙江大学 | Heavy metal safety diagnosis system and method for crop associated with selenium and cadmium |
| CN111704512A (en) * | 2020-06-29 | 2020-09-25 | 广西壮族自治区农业科学院 | Preparation method of selenium-rich cadmium-resistant soil conditioner |
| CN112745173A (en) * | 2021-02-05 | 2021-05-04 | 湖南省辰河生态农业发展有限公司 | Cadmium-reducing soil improvement functional organic fertilizer |
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Application publication date: 20190426 |