CN108752138A - The complex repairation agent administered for heavy metals in farmland cadmium pollution and restorative procedure and application - Google Patents
The complex repairation agent administered for heavy metals in farmland cadmium pollution and restorative procedure and application Download PDFInfo
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- CN108752138A CN108752138A CN201810827508.7A CN201810827508A CN108752138A CN 108752138 A CN108752138 A CN 108752138A CN 201810827508 A CN201810827508 A CN 201810827508A CN 108752138 A CN108752138 A CN 108752138A
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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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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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
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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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- 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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- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The present invention provides a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution and restorative procedure and applications, are related to heavy metal-polluted soil Treatment process field.This includes mainly the components such as passivator, soil conditioner and microbial bacterial agent for the complex repairation agent that heavy metals in farmland cadmium pollution is administered, pass through the mating reaction between each component, so that heavy metal cadmium can be solidificated in medicament and soil by the complex repairation agent, reduce the migration of cadmium, the bioavailability of heavy metal cadmium in crops is reduced, simultaneously, moreover it is possible to improve soil texture, soil nutrient is activated, the yield of crops is significantly improved.The present invention also provides the restorative procedure administered for heavy metals in farmland cadmium pollution, which administers the farmland of polluted by heavy metal cadmium by using above-mentioned complex repairation agent.In view of advantage possessed by above-mentioned complex repairation agent or restorative procedure so that the complex repairation agent or restorative procedure can be widely used in the farmland of polluted by heavy metal cadmium.
Description
Technical field
The present invention relates to heavy metal-polluted soil Treatment process fields, dirty for heavy metals in farmland cadmium in particular to one kind
Contaminate the complex repairation agent administered and restorative procedure and application.
Background technology
According to《National Soil Pollution Investigation bulletin》The national soil environment situation of display totally allows of no optimist, partly
Area's soil pollution is heavier, and arable soil environmental quality causes anxiety, industry and mining discarded ground soil environment outstanding problem.Industry and mining, agricultural
Equal human activities and Environmental Background Values of Soils height be cause soil pollution or it is exceeded the main reason for.Total exceeded of national soil
Rate is 16.1%.
For arable land, soil point exceeding standard rate is 19.4%, wherein slightly, slightly, moderate and serious pollution point
Ratio is respectively 13.7%, 2.8%, 1.8% and 1.1%, and major pollutants are cadmium, nickel, copper, arsenic, mercury, lead, DDT and more
Cycloaromatics.Wherein, cadmium can persistently exist in soil environment, and by food chain accumulation, transmission, cause to be harmful to human health
It influences and is widely paid close attention to.China's Cd-polluted farmland is more than 130000hm2, it is related to 25 areas of a provinces and cities more than 10.
Especially southern cadmium rice event takes place frequently, with constitute a threat to " eating " the problem of.
One of current existing Cadmium Pollution in Soils treatment measures are to be passivated renovation agent by addition to change cadmium in the soil
Form reduces the migration of cadmium and the utilizability of crops, to reduce absorption of the crop to cadmium, realizes the absorption for reducing cadmium
The purpose of approach and land sustainable use.Due to larger using single passivator dosage, and it is bigger on soil pH influence,
Also the absorption that ASI systematic approach can be reduced while crops are reduced to heavy metal cadmium utilizability, is unfavorable for the life of crops
It is long, influence the output of crops.Also there is Multifunctional combined cooker agent in the country at present, consisting of inorganic passivant, organic blunt
Agent and cadmium antagonist have certain effect for the reduction of cadmium in crops, but exist to crop yield and adversely affect.
In view of this, special propose the present invention at least one of to solve the above technical problems.
Invention content
First of the present invention is designed to provide a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution, leads to
It crosses between each raw material and the mating reaction of dosage so that the complex repairation agent can be effectively improved the farmland of polluted by heavy metal cadmium
Soil inhibits absorption of the crops to heavy metal cadmium, reduces the cadmium content in crops body, simultaneously, moreover it is possible to promote crops
Output.
Second object of the present invention is to provide a kind of restorative procedure administered for heavy metals in farmland cadmium pollution, this is repaiied
Compound method is simple, easy, good to the repairing effect of the agricultural land soil of polluted by heavy metal cadmium.
Third object of the present invention be to provide a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution or
Application of the restorative procedure in farmland is administered.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
The present invention provides a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution, including following components：Component A
With component B, wherein component A includes passivator and soil conditioner, and component B includes microbial bacterial agent；
The mass ratio of passivator, soil conditioner and microbial bacterial agent is (1.3~5):(1~5):(0.01~0.24).
Further, on technical solution of the present invention basis, the passivator, soil conditioner and microbial bacterial agent
Mass ratio is (1.5~4.5):(1.5~4.5):(0.02~0.22)；
Preferably, the mass ratio of the passivator, soil conditioner and microbial bacterial agent is (2~4):(2~4):(0.05
~0.2).
Further, on technical solution of the present invention basis, the passivator includes hydroxyapatite, zeolite, magnesium-based
At least two combination in compound, Cabase compound, silica or alundum (Al2O3).
Further, on technical solution of the present invention basis, the soil conditioner, which includes plant residue and biology, to be had
Machine fertilizer.
Further, on technical solution of the present invention basis, the microbial bacterial agent includes photosynthetic bacteria, gemma bar
In bacterium, actinomyces, saccharomycete, plant growth-promoting rhizobacteria or dissolving phosphor and dissolving potassium bacterium any one or at least two combination.
Further, on technical solution of the present invention basis, per acre the dosage of farmland complex repairation agent be 230~
1174kg, preferably 240~1100kg, further preferably 260~1000kg.
The present invention also provides the restorative procedures administered for heavy metals in farmland cadmium pollution, using above-mentioned for a farmland huge sum of money
Belong to the complex repairation agent that cadmium pollution is administered to administer the farmland of polluted by heavy metal cadmium.
Further, on technical solution of the present invention basis, the restorative procedure includes the following steps：By formula ratio
Component A and component B are spread fertilizer over the fields in farmland surface, are turned over uniformly；
Preferably, the restorative procedure administered for heavy metals in farmland cadmium pollution includes the following steps：First by the group of formula ratio
Divide A to spread fertilizer over the fields in farmland surface, after turning over uniformly, pour water, then the component B of formula ratio is spread fertilizer over the fields in farmland surface, turns over uniformly i.e.
It can.
Further, on technical solution of the present invention basis, per acre the dosage of farmland complex repairation agent be 230~
1174kg, preferably 240~1100kg, further preferably 260~1000kg.
The present invention also provides the above-mentioned complex repairation agent administered for heavy metals in farmland cadmium pollution or for a farmland huge sum of money
Belong to application of the restorative procedure of cadmium pollution improvement in farmland is administered.
Compared with prior art, the complex repairation agent and reparation administered provided by the present invention for heavy metals in farmland cadmium pollution
Method has the advantages that：
(1) the present invention provides a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution, and main includes passivation
The components such as agent, soil conditioner and microbial bacterial agent pass through the mating reaction between each component so that the complex repairation agent can incite somebody to action
Heavy metal cadmium is solidificated in medicament and soil, reduces the migration of cadmium, reduces the bioavailability of heavy metal cadmium in crops,
Simultaneously, moreover it is possible to improve soil texture, activate soil nutrient, significantly improve the yield of crops.
(2) the present invention provides a kind of restorative procedure administered for heavy metals in farmland cadmium pollution, which passes through
The farmland of polluted by heavy metal cadmium is administered using the above-mentioned complex repairation agent administered for heavy metals in farmland cadmium pollution, it is right
Heavy metal cadmium in agricultural land soil has good passivation, can inhibit absorption of the crops to cadmium, reduces heavy metal cadmium
Bioavailability；Simultaneously, moreover it is possible to improve soil texture, activate soil nutrient, promote absorption of the crops to nutritional ingredient, have
It is increased income conducive to increasing crop yield.
In addition, the restorative procedure is simple, easy, it is good to the repairing effect of the agricultural land soil of polluted by heavy metal cadmium.
(3) the present invention provides a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution or restorative procedure in agriculture
Application in the improvement of field.In view of advantage possessed by above-mentioned complex repairation agent or restorative procedure so that the complex repairation agent is repaiied
Compound method can be widely used in the farmland of polluted by heavy metal cadmium, meanwhile, also reference is provided for other Heavy Metal Pollution Controls
Meaning.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to the first aspect of the invention, a kind of complex repairation administered for heavy metals in farmland cadmium pollution is provided
Agent, including following components：Component A and component B, wherein component A includes passivator and soil conditioner, and component B includes microorganism
Microbial inoculum；
The mass ratio of passivator, soil conditioner and microbial bacterial agent is (1.3~5):(1~5):(0.01~0.24).
Component A in the complex repairation agent includes passivator and soil conditioner.
Wherein, passivator can change heavy metal depositing in the soil by passivations such as ion exchange, absorption, precipitations
In form, the mobility and biological effectiveness of heavy metal in the soil are reduced；Soil conditioner can break soil hardening, loose
Soil improves the gas permeability of soil, reduces the soil weight, promotes soil microbial activities, enhancing soil rich water penetration, has simultaneously
There is improvement soil, enhancing disease-resistant crops ability, improves crop yield, improves the effects that quality of agricultural product.
Component B in the complex repairation agent includes microbial bacterial agent.Microbial bacterial agent can improve soil physical and chemical property, disappear
Except hardened；Phosphorus decomposing, potassium decomposing, fixed nitrogen promote absorption of the plant to the effective nutritional ingredient of soil, improve utilization rate of fertilizer, adjusts root
Border micro-ecological environment；Increase the soil organism, supplements soil nutrient elements；Resistance is improved, survival rate is improved, promotes root system hair
It reaches；Agriculture of degrading is residual, absorption and heavy metal-passivated, absorption of the reduction plant to heavy metal.
The specific type of passivator, soil conditioner and microbial bacterial agent is not especially limited, it is normal using this field
The type of rule.
It should be noted that component A and component B can be hybrid packed in the complex repairation agent, can also be separately only
Vertical packaging.For example, when component A is powder, when component B is liquid, component A and component B can be separated and be packed.
Proportioning between passivator, soil conditioner and microbial bacterial agent each component is for the final property of the complex repairation agent
Can have a direct impact.Therefore the dosage of passivator, soil conditioner and microbial bacterial agent each component should control in a certain range.
Mass ratio between passivator, soil conditioner and microbial bacterial agent each component can be according to the practical feelings of agricultural land soil
Condition is adjusted.The mass ratio of typical but non-limiting passivator, soil conditioner and microbial bacterial agent is 1.3:1:0.01,
1.4:5:0.01、1.5:2:0.05、2:2:0.05、2:4:0.15、3:2:0.05、3.9:3:0.24、4:2:0.05、4.5:1.8:
0.22,5:2:0.05,5:3:0.1,5:4:0.15,5:5:0.24,3:5:0.24,2:5:0.24,1:5:0.24,1:5:0.2 or
1:5:0.1。
Complex repairation agent provided by the invention includes mainly the components such as passivator, soil conditioner and microbial bacterial agent, leads to
Cross the coordinated effect between each component so that heavy metal cadmium can be solidificated in medicament and soil by the complex repairation agent, be subtracted
The migration of few cadmium, reduces the bioavailability of heavy metal cadmium in crops, simultaneously, moreover it is possible to improve soil texture, activation soil
Earth nutrient significantly improves the yield of crops, improves and uses single passivator or Multifunctional combined cooker agent in the prior art
Although the technical issues of reduction for cadmium in crops has certain effect, seriously affects crop yield.
" comprising " of the present invention, it is intended that it can also include other components exceptionally except described group.These other components
Assign the complex repairation agent different characteristics.In addition to this, " comprising " of the present invention may be replaced by closed
" for " or " by ... form ".
As a kind of preferred embodiment of the present invention, the mass ratio of passivator, soil conditioner and microbial bacterial agent is
(1.5~4.5):(1.5~4.5):(0.02~0.22)；
Preferably, the mass ratio of the passivator, soil conditioner and microbial bacterial agent is (2~4):(2~4):(0.05
~0.2).
Scientific and reasonable proportioning is carried out by above-mentioned complex repairation agent each component so that the complex repairation agent is in agricultural land soil
Cadmium metal have good passivation, can inhibit absorption of the crop to cadmium, reduce the bioavailability of heavy metal cadmium, together
When, which can also adjust soil texture, activate soil nutrient, have certain promotion to make the volume increase of crops
With.
Passivator, soil conditioner and microbial bacterial agent city are available in the complex repairation agent, can also be led by this technology
The method of domain routine is voluntarily prepared.
As a kind of preferred embodiment of the present invention, passivator includes hydroxyapatite, zeolite, magnesio compound, calcium
At least two combination in based compound, silica or alundum (Al2O3).
The dosage of each component in passivator is not especially limited, can be set according to actual needs.
Above-mentioned passivator is added in the agricultural land soil by metal cadmium pollution, passivator will weigh after generating gelling, adjusting pH
Cadmium metal is solidificated in medicament and soil, reduces the bioavailability of heavy metal cadmium.By to the specific kind of limit of passivator
It is fixed so that the passivation of the complex repairation agent is more notable.
Passivator in the complex repairation agent can be voluntarily prepared by this field conventional technique method, also may be used
It is purchased in market to obtain.For example, the passivator can be selected from the MetaCon of Beijing Run Ming environmental science and technology Co., LtdTM+、Equal heavy metals repair materials.
Above-mentioned passivator has specificity and high efficiency, the leaching that can reduce soil heavy metal cadmium dense heavy metal cadmium
Degree, and then reduce its migration and biological effectiveness.
As a kind of preferred embodiment of the present invention, soil conditioner includes plant residue and biological organic fertilizer.
Plant residue is mainly the agricultural of fermented processing, forestry waste, such as stalk, deadwood weeds, fallen leaves etc..
Biological organic fertilizer refer to microorganisms with specific functions with mainly with plant and animal residues (such as feces of livestock and poultry, agricultural crop straw
Deng) it is source and one kind for being combined through harmless treatment, decomposed organic materials has both microbial manure and organic fertilizer efficiency
The fertilizer answered.The advantages such as biological organic fertilizer collection chemical fertilizer, compound fertilizer, microorganism fertilizer, organic fertilizer, water-retaining agent and the root-inducing powder are one
Body.
By to the specific kind of restriction of soil conditioner so that the soil conditioner can activate soil nutrient, quickly
Invalid state minerals are converted to the available available nutrient of plant by culture fertility, make soil texture that the variation of matter occur, and are coordinated
Liquid manure and nutrition relationship have certain facilitation for the volume increase of crops.
Soil conditioner in the complex repairation agent can be voluntarily prepared by this field conventional technique method,
Also commercially available to obtain.For example, the soil conditioner can be selected from naturalness liquid fertilizer No. 1, of ecological (Shenzhen) Co., Ltd of naturalness
Right liquid fertilizer 2, naturalness heavy metal special conditioning agent or naturalness rice special conditioning agent etc..
As a kind of preferred embodiment of the present invention, the microbial bacterial agent includes photosynthetic bacteria, bacillus, unwrapping wire
In bacterium, saccharomycete, plant growth-promoting rhizobacteria or dissolving phosphor and dissolving potassium bacterium any one or at least two combination.
Photosynthetic bacteria can utilize the solar thermal energy of soil receiving or using ultraviolet light as the energy, by the hydrogen sulfide and carbon in soil
Hydrogen in hydrogen compound is separated, and change harmful substance is innocuous substance, and with the secretion of plant root, organic matter, harmful
Gas (hydrogen sulfide etc.) and carbon dioxide, nitrogen etc. are matrix, synthesis carbohydrate, amino acid, vitamins, nitrogen compound and physiology
Active material etc., can rich soil and promotion animal and plant growth.
Bacillus can be in crop rhizosphere or Colonization inside plants, and play specific fertilizer effect.
Actinomyces can convert nitrogen P elements in soil and increase soil fertility, and have stimulation plant growth to act on.
Yeast cell surface is loaded with negative electrical charge, and there are a variety of functions such as amino, carboxyl, hydroxyl, aldehyde radical, sulfate radical
Group can fix heavy metal ion, to change the environmental recovery bonds scholarship and moral conduct of heavy metal in the soil by Electrostatic Absorption and complexing
To achieve the purpose that biological prosthetic.
Plant growth-promoting rhizobacteria promotes plant growth, regulation and control crop heavy metal to inhale by generating auxin substance
It receives, transhipment, reduces edible part in crops Heavy Metal Accumulation.
Dissolving phosphor and dissolving potassium bacterium can be by the invalid potassium not absorbed by crops in soil and invalid phosphorus, and being converted into can be by crops
The available potassium and rapid available phosphorus being absorbed and utilized, while the multiple elements such as silicon in soil, manganese, zinc, molybdenum are discharged, improve trophic level.
Pass through the restriction to specific strain in the microbial bacterial agent so that the improvement for soil of the microbial bacterial agent is made
With and reduce plant the absorption of heavy metal is become apparent.
Microbial bacterial agent in the complex repairation agent can be voluntarily prepared by this field conventional technique method,
Also commercially available to obtain.For example, the microbial bacterial agent can be selected from the soil remediation type of moist Science and Technology Co., Ltd. of Beijing morning Austria
Microbial inoculum, foliage spray type microbial inoculum or biological organic bacterial manure etc..
As a kind of preferred embodiment of the present invention, the dosage of farmland complex repairation agent is 230~1174kg per acre, excellent
It is selected as 240~1100kg, further preferably 260~1000kg.
The dosage of typical but non-limiting complex repairation agent be 230kg, 300kg, 400kg, 500kg, 600kg,
700kg, 800kg, 900kg, 1000kg, 1100kg or 1174kg.
When the dosage of complex repairation agent is too low in farmland per acre, then the passivation of heavy metal cadmium and agriculture in agricultural land soil
The equal unobvious of production-increasing function effect of crop；If the dosage of complex repairation agent is excessively high, corresponding expense increases, economic benefit compared with
It is low.Therefore the dosage of complex repairation agent should control in suitable range.
According to the second aspect of the invention, a kind of restorative procedure administered for heavy metals in farmland cadmium pollution is provided,
The farmland of polluted by heavy metal cadmium is administered using the above-mentioned complex repairation agent administered for heavy metals in farmland cadmium pollution.
The restorative procedure has good passivation for the heavy metal cadmium in agricultural land soil, can inhibit crops to cadmium
It absorbs, reduces the bioavailability of heavy metal cadmium；Simultaneously, moreover it is possible to improve soil texture, activate soil nutrient, promote crops
Absorption to nutritional ingredient is conducive to increasing crop yield and increases income.
As a kind of preferred embodiment of the present invention, which includes the following steps：By the component A of formula ratio and
Component B is spread fertilizer over the fields in farmland surface, is turned over uniformly；
Preferably, the restorative procedure administered for heavy metals in farmland cadmium pollution includes the following steps：First by the group of formula ratio
Divide A to spread fertilizer over the fields in farmland surface, after turning over uniformly, pour water, then the component B of formula ratio is spread fertilizer over the fields in farmland surface, turns over uniformly i.e.
It can.
Pass through the restriction to restorative procedure specific steps so that the complex repairation agent can be evenly acts on farmland soil
Earth is conducive to the improvement of subsequent heavy metal cadmium and the increasing both production and income of crops.
As a kind of preferred embodiment of the present invention, the dosage of farmland complex repairation agent is 230~1174kg per acre, excellent
It is selected as 240~1100kg, further preferably 260~1000kg.
The dosage of typical but non-limiting complex repairation agent be 230kg, 300kg, 400kg, 500kg, 600kg,
700kg, 800kg, 900kg, 1000kg, 1100kg or 1174kg.
According to the third aspect of the present invention, it additionally provides and provides a kind of answering for heavy metals in farmland cadmium pollution improvement
Close the application of renovation agent or restorative procedure in farmland is administered.
In view of advantage possessed by above-mentioned complex repairation agent or restorative procedure so that the complex repairation agent or restorative procedure can
It is widely used in the farmland of polluted by heavy metal cadmium, meanwhile, also reference is provided for other Heavy Metal Pollution Controls.
With reference to specific embodiment and comparative example, the invention will be further described.
Embodiment 1
A kind of complex repairation agent administered for heavy metals in farmland cadmium pollution provided in this embodiment, including following components：
Passivator, soil conditioner and microbial bacterial agent；
The mass ratio of passivator, soil conditioner and microbial bacterial agent is 3.9:3:0.24.
Wherein, passivator MetaConTM+Purchased from Beijing Run Ming environmental science and technology Co., Ltd, main component is magnesium-based chemical combination
Object, hydroxyapatite and Cabase compound, are ground into powdery；Soil conditioner (agent of naturalness heavy metal special conditioning) is purchased from naturalness
The group of product and biological organic fertilizer and water-retaining agent after the fermentation of agro-ecology Science and Technology Co., Ltd., predominantly stalk deadwood
It closes, is black powder；Microbial bacterial agent be purchased from Beijing morning Austria moisten Science and Technology Co., Ltd., be containing photosynthetic bacteria, saccharomycete,
The active microorganism liquid agent of root system Promoting bacteria and phosphorus decomposing potassium bacterium, living bacteria count are not less than 2,000,000,000/milliliter.
Embodiment 2
A kind of complex repairation agent administered for heavy metals in farmland cadmium pollution provided in this embodiment, in addition to passivator, soil
The mass ratio of earth conditioner and microbial bacterial agent is 1.4:5:0.01, remaining is same as Example 1.
Embodiment 3
A kind of complex repairation agent administered for heavy metals in farmland cadmium pollution provided in this embodiment, in addition to passivator, soil
The mass ratio of earth conditioner and microbial bacterial agent is 4.5:1.8:0.22, remaining is same as Example 1.
Embodiment 4
A kind of complex repairation agent administered for heavy metals in farmland cadmium pollution provided in this embodiment, including following components：
Passivator, soil conditioner and microbial bacterial agent；
The mass ratio of passivator, soil conditioner and microbial bacterial agent is 2:4:0.15.
Wherein, passivator includes hydroxyapatite, zeolite and alundum (Al2O3), and the mass ratio of three is 2:1:1；Soil tune
It manages agent and is purchased from naturalness agro-ecology Science and Technology Co., Ltd., the predominantly product and biological organic fertilizer after the fermentation of stalk deadwood
With the combination of water-retaining agent；Microbial bacterial agent is purchased from moist Science and Technology Co., Ltd. of Beijing morning Austria, including bacillus, unwrapping wire
The active microorganism liquid agent of bacterium, root system Promoting bacteria and phosphorus decomposing potassium bacterium, living bacteria count are not less than 2,000,000,000/milliliter.
Embodiment 5
A kind of complex repairation agent administered for heavy metals in farmland cadmium pollution provided in this embodiment, in addition to passivator, soil
The mass ratio of earth conditioner and microbial bacterial agent is 1.3:1:0.01, remaining is same as Example 4.
Comparative example 1
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to passivator, soil tune
The mass ratio for managing agent and microbial bacterial agent is 1:6:0.25, remaining is same as Example 1.
Comparative example 2
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to passivator, soil tune
The mass ratio for managing agent and microbial bacterial agent is 6:0.8:0.3, remaining is same as Example 1.
Comparative example 3
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to being not added with soil conditioning
Agent and microbial bacterial agent, remaining is same as Example 1.
Comparative example 4
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to being not added with soil conditioning
Agent, remaining is same as Example 1.
Comparative example 5
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to being not added with microbial bacteria
Agent, remaining is same as Example 1.
Comparative example 6
A kind of renovation agent administered for heavy metals in farmland cadmium pollution that this comparative example provides, in addition to being not added with passivator,
Remaining is same as Example 1.
Comparative example 7
This comparative example provide it is a kind of for heavy metals in farmland cadmium pollution administer renovation agent, in addition to be not added with passivator and
Soil conditioner, remaining is same as Example 1.
Comparative example 8
This comparative example provide it is a kind of for heavy metals in farmland cadmium pollution administer renovation agent, in addition to be not added with passivator and
Microbial bacterial agent, remaining is same as Example 1.
Further to verify the effect of above-described embodiment and comparative example, ad hoc following experimental example.
Experimental example 1
Project implementation farmland is located at zhuzhou,hunan county, using plot heavy metal cadmium content ranging from 1-1.5mg/kg, pH models
It encloses for 6.0-6.5.Subregion improvement is carried out to project farmland, demonstration area farmland is divided into A, B, C, D, E, F, G, H, I, J, K, L and M
The complex repairation agent that embodiment 1-5 provides comparative example 1-8 is respectively adopted in totally 13 regions, each region, i.e., by each complex repairation
Agent is uniformly spread fertilizer over the fields in farmland surface, carries out turning over uniformly at once, and farmland periphery is isolated with waterproofing membrane, prevents each processing from arranging
Cross influence is applied, renovation agent to be composite spreads fertilizer over the fields the plantation for carrying out crops paddy after a week.Wherein, farmland complex repairation agent per acre
Dosage be 560kg.
Meanwhile blank control group is also set up, blank control group does not spread fertilizer over the fields complex repairation agent, directly carries out crops paddy
Plantation.
Sampling analysis is carried out to paddy seeds in farmland after paddy maturation, cadmium content in paddy and rice yield are carried out
Statistics, concrete outcome are shown in Table 1.
The corresponding paddy check and acceptance result of 1 each embodiment and comparative example of table
By data in table 1 it is found that the complex repairation provided in an embodiment of the present invention administered for heavy metals in farmland cadmium pollution
Agent has good effect to heavy metals in farmland cadmium pollution, so that cadmium content meets heavy metal limitation in food in paddy, together
When the complex repairation agent also also have certain facilitation to the volume increase of crops.
Specifically, embodiment 2-3 and comparative example 1-2 are the control experiment of embodiment 1, five the difference is that passivation
Agent, soil conditioner are different with the mass ratio of microbial bacterial agent.It can be seen from data in table 1 passivator, soil conditioner and
Mass ratio between microbial bacterial agent need to be controlled just can ensure that heavy metal cadmium content maintains in crops in reasonable range
Lower level and the per mu yield of crops are in higher level.
Comparative example 3-8 is the contrast experiment of embodiment 1.The complex repairation agent that embodiment 1 provides includes passivator, soil
Three kinds of components of conditioner and microbial bacterial agent, and comparative example 3-8 is using in passivator, soil conditioner or microbial bacterial agent
A kind of combination of component or arbitrary two kinds of components.Passivator, soil conditioner and microorganism it can be seen from data in table 1
There are the effects of certain coordinated between microbial inoculum, and only there are three types of the quality proportionings between component collective effect and three kinds of components to protect
It holds in a certain range, which can be only achieved preferable regulation effect for heavy metals in farmland cadmium pollution, to
So that cadmium content is under standard value in crops, while also ensuring that the per mu yield of crops reaches higher level.
In conclusion the complex repairation agent provided by the present invention for heavy metals in farmland cadmium pollution improvement and restorative procedure,
It can be effectively improved the agricultural land soil of polluted by heavy metal cadmium, inhibit absorption of the crops to heavy metal cadmium, reduce crops body
Middle cadmium content, simultaneously, moreover it is possible to which the output for promoting crops administers for farmland and provides referential experience.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of complex repairation agent administered for heavy metals in farmland cadmium pollution, which is characterized in that including following components：Component A
With component B, wherein component A includes passivator and soil conditioner, and component B includes microbial bacterial agent；
The mass ratio of passivator, soil conditioner and microbial bacterial agent is (1.3~5):(1~5):(0.01~0.24).
2. complex repairation agent according to claim 1, which is characterized in that the passivator, soil conditioner and microorganism
The mass ratio of microbial inoculum is (1.5~4.5):(1.5~4.5):(0.02~0.22)；
Preferably, the mass ratio of the passivator, soil conditioner and microbial bacterial agent is (2~4):(2~4):(0.05~
0.2)。
3. complex repairation agent according to claim 1 or 2, which is characterized in that the passivator includes hydroxyapatite, boiling
At least two combination in stone, magnesio compound, Cabase compound, silica or alundum (Al2O3).
4. complex repairation agent according to claim 1 or 2, which is characterized in that the soil conditioner includes plant residue
And biological organic fertilizer.
5. complex repairation agent according to claim 1 or 2, which is characterized in that the microbial bacterial agent include photosynthetic bacteria,
In bacillus, actinomyces, saccharomycete, plant growth-promoting rhizobacteria or dissolving phosphor and dissolving potassium bacterium any one or at least two group
It closes.
6. complex repairation agent according to claim 1 or 2, which is characterized in that the dosage of farmland complex repairation agent is per acre
230~1174kg, preferably 240~1100kg, further preferably 260~1000kg.
7. a kind of restorative procedure administered for heavy metals in farmland cadmium pollution, which is characterized in that any one using claim 1-6
The farmland of polluted by heavy metal cadmium is administered in the complex repairation agent administered for heavy metals in farmland cadmium pollution described in.
8. restorative procedure according to claim 7, which is characterized in that include the following steps：By the component A and group of formula ratio
Divide B to spread fertilizer over the fields in farmland surface, turns over uniformly；
Preferably, the restorative procedure administered for heavy metals in farmland cadmium pollution includes the following steps：First the component A of formula ratio is spread
Farmland surface is imposed on, after turning over uniformly, is poured water, then the component B of formula ratio is spread fertilizer over the fields in farmland surface, is turned over uniformly.
9. restorative procedure according to claim 7 or 8, which is characterized in that the dosage of farmland complex repairation agent is 230 per acre
~1174kg, preferably 240~1100kg, further preferably 260~1000kg.
10. the complex repairation agent administered for heavy metals in farmland cadmium pollution or right described in claim 1-6 any one are wanted
Ask application of the restorative procedure administered for heavy metals in farmland cadmium pollution in farmland is administered described in 7-9 any one.
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