CN106116946A - A kind of bio-organic fertilizer of repairing heavy metal in soil and preparation method thereof - Google Patents
A kind of bio-organic fertilizer of repairing heavy metal in soil and preparation method thereof Download PDFInfo
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- CN106116946A CN106116946A CN201610458389.3A CN201610458389A CN106116946A CN 106116946 A CN106116946 A CN 106116946A CN 201610458389 A CN201610458389 A CN 201610458389A CN 106116946 A CN106116946 A CN 106116946A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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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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- 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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Abstract
The invention discloses the bio-organic fertilizer of a kind of repairing heavy metal in soil, by animal wastes, straw, changing food waste and the microorganism mixed bacterial through special handling are made bio-organic fertilizer, it is possible to decrease soil valence heavy metal ions content more than 8%；Reduce crop heavy metal enrichment more than 10%；Reduction especially for Cr reaches more than 70%；Make crop yield more than 5%, and there is the multiple efficacies such as water conservation, fertilizer conservation and improvement Soil structure, be a kind of low cost, new bio restorative procedure efficient, easy, eco-friendly.
Description
Technical field
This product relates to technical field of agricultural fertilizers, particularly relates to the biological organic fertilizer of a kind of repairing heavy metal in soil
Material.
Background technology
At present, due to mankind's heavy metal exploitation, smelt, process and business manufacturing activities is increasing, cause many
Heavy metal such as lead, hydrargyrum, cadmium, cobalt etc. enter in big gas and water, soil, cause serious environmental pollution, and the heavy metal pollution of soil is more
It is a most serious environmental problem, has caused the highest attention of the central government, " within 2016, central authorities are to tax rebates for local governments
With spending budget table " in, the budgetary resources for the obligate improvement of soil pollution are up to 90.89 hundred million yuan.Heavy metal pollution of soil thing
It is mainly derived from sewage irrigation, industrial residue, municipal refuse, trade waste stacking and atmospheric sedimentation.Sewage accounts for bigger ratio
The comparison of ingredients of the industrial wastewater of example is complicated, and the most in various degree be difficult to, containing biology, the various heavy degraded, be soil
The main source of heavy metal contaminants.At present, the whole world discharges Hg about 1.5 ten thousand tons, Cu about 3,400,000 tons, Pb about 500 every year on average
Ten thousand tons, Mn about 15,000,000 tons, Ni about 1,000,000 tons.Investigate according to the Ministry of Agriculture of China, in the Irrigation District of Sewage of about 1,400,000 hectares, suffer
The land area of heavy metal pollution accounts for the 64.8% of Irrigation District of Sewage area, wherein slight pollution account for 46.7%, intermediate pollution
Account for 9.7%, severe contamination account for 8.4%.
The method being used for degrading or eliminating heavy metal pollution of soil both at home and abroad substantially can be divided into Physical, chemical redemption
The big class of technology, bioremediation technology etc. 3.Physical/chemical recovery technique is based primarily upon the difference of soil physico-chemical property and heavy metal
Characteristic, is separated by physical chemistry means or heavy metal in fixing soil reaches cleaning soil and reduces pollutant ambient wind
Danger and the technological means of health risk.Physical chemistry recovery technique includes that soil removal and replacement, soil moved in improve the original, deep ploughing such as are digged at the method, soil washing,
Thermal desorption method, vitrification, electro reclamation etc..Physical chemistry technology implementation is convenient flexibly, and the cycle is shorter, it is adaptable to multiple heavy
The process of metal, is used widely in the reparation of heavy-metal contaminated soil engineering, but the quantities of this technology implementation is relatively big,
Relatively costly, to a certain degree its popularization and application of higher limit.Therefore, in the urgent need to a kind of low cost of development, efficient, easy, environment
Friendly new bio restorative procedure.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of efficient, easy, eco-friendly repairing heavy metal in soil
Bio-organic fertilizer.
In the last few years, due to the raising of Agricultural Mechanization Degree, so that agricultural machinery instead of domestic animal.So that straw
Amount as feedstuff greatly reduces.The when of annual crop maturity, peasant gathers in crop with a large amount of straws remaining in defensive position
Just can only burning disposal.Open Burning Crop Residue atmosphere pollution, waste resource, seriously to the most affecting and just disturbing economy
Often order, forms new potential safety hazard.Straw is processed and makes biological organic fertilizer, not only avoid and burn the environmental pollution brought
And the wasting of resources, and the humus that Straw decomposing is become more stable by series of biochemical reactions can be passed through, supplementary nitrogen,
The nutrient that the crop such as phosphorus, potassium is required, thus improve Soil structure.Changing food waste is also cause municipal pollution important simultaneously
One of reason.To this end, be the most also effectively utilized the nutrition that changing food waste is abundant, fermented and be biologically converted into biology
Organic fertilizer, thus turn waste into wealth, reduce municipal pollution.
According to the literature, colloid bacillus cereus (Bacillus mucilaginosus) heavy metal chromium is a kind of effective to root
Microbial adsorbent (Gao Yuzhen, 2015)；Be not only saccharomyces cerevisiae (Saccharomyces cerevisiae) have by bacterial strain
The biological adsorption agent of practical potentiality, is also the good material (Chen Can, 2006) of research the Heavy Metals Bio-adsorption mechanism；Aspergillus niger
(Aspergillus niger) can be good at preventing from heavy metal and have the ability (Fan Ting, 2012) of good enriching heavy metal.
To this end, the present invention utilizes colloid bacillus cereus, saccharomyces cerevisiae and aspergillus niger, in conjunction with animal dung, farmland straw and meal
Kitchen rubbish, mixed stack preparation can the biological organic fertilizer of removing heavy-metal, will effectively reduce the toxicity of heavy metal in soil ion；
, repair in conjunction with Organic Manure on Soil meanwhile, improve Soil structure, promote the absorption of Plant To Nutrient element, reach healthy and strong
Plant, the inverse property in enhancing hole, raising crop yield, reduction environmental pollution and the purpose of guarantee people's life health.
A kind of bio-organic fertilizer of repairing heavy metal in soil, including the composition of following percentage by weight:
Preferably, described straw-night soil includes following main component:
Preferably, described feces of livestock and poultry is chicken manure and cattle manure mixed in equal amounts forms.
The preparation method of the bio-organic fertilizer of a kind of repairing heavy metal in soil, comprises the following steps:
(1) preparation of microbial bacterial agent
A, the preparation method of saccharomyces cerevisiae microbial inoculum: take saccharomyces cerevisiae strain, add in 30 DEG C of water constant temperature stirring until completely
Dissolving, obtained liquid adds in fluid medium, detects cell density and reach 1.5-3.1 × 10 after cultivating 4-6d9cfu/
ML, obtains saccharomyces cerevisiae microbial inoculum；
B, the preparation method of colloid bacillus cereus microbial inoculum: take colloid bacillus cereus strain, be added to the water constant temperature stirring to complete
CL；Obtained liquid adds in fluid medium, and at 150rpm, 30-35 DEG C, isothermal vibration cultivates 4-6d so that thalline
Density reaches 6.2-8.3 × 109Cfu/mL i.e. obtains colloid bacillus cereus microbial inoculum；
C, the preparation method of aspergillus niger microbial inoculum: take aspergillus niger strain, be added to the water constant temperature and stir until being completely dissolved, institute
The liquid obtained joins in inorganic salt solution, is mixed with dispensing by inorganic salt solution, is stirred inoculation, permanent at 25-30 DEG C
Aspergillus niger microbial inoculum is i.e. obtained after temperature fermentation 4-6d；
(2) straw-excrement composting becomes thoroughly decomposed
Taking crushed stalk is that diameter is less than the unqualified of 2mm, adds changing food waste mixing, adds decomposing agent and animal dung
Just, keeping moisture at 60%-70%, controlling compost height is 1.5 meters, controls to pile up, under the conditions of temperature is 25-35 DEG C, the 23-that becomes thoroughly decomposed
26d；Pile up intensification of becoming thoroughly decomposed afterwards so that temperature reaches 60-70 DEG C, maintain 2-3d, prepare the straw-excrement composting become thoroughly decomposed；
(3) preparation of biological organic fertilizer
Above-mentioned prepared straw-night soil is carried out airing so that it is after temperature is down to 30-35 DEG C, be uniformly blended into colloid
Gemma bacillus agent, and add carbamide, magnesium sulfate and activated carbon and Borax, it is sufficiently mixed fermentation 2-3d；Add after having fermented
Control temperature 25 DEG C after entering saccharomyces cerevisiae microbial inoculum and aspergillus niger microbial inoculum mix homogeneously again to ferment 2-3d；By the mixture after fermentation
It is dried, measures pack, obtain bio-organic fertilizer.
Preferably, consisting of of described saccharomyces cerevisiae microbial inoculum fluid medium: 20g peptone, 10g yeast extract,
2g glucose, appropriate distilled water dissolves, adds 15ml 0.2% adenine solution, constant volume to 1L；120 DEG C of autoclavings
15min。
Preferably, consisting of of the fluid medium of described colloid bacillus cereus microbial inoculum: sucrose 10g, yeast extract
0.3g, ammonium sulfate 0.5g, calcium carbonate 0.5g, Magnesium sulfate heptahydrate 0.5g, dipotassium hydrogen phosphate 1g, adjust pH value 7.0-7.5 constant volume
To 1L.
Preferably, the composition of described inorganic salt solution is: NaCl 1 part, CaCl20.5 part, KCl 0.5 part, K2HPO4
0.5 part, NaHCO30.25 part, MgSO41 part, FeSO4·7H2O0.025 part, distilled water 2000 parts；Described dispensing mixing
For: 2000 parts of wheat bran, soybean cake powder 2000 parts, 1000 parts of peanut straw powder.
Compared with prior art the invention have the benefit that bio-organic fertilizer prepared by the present invention organic >=
60%, living bacteria count >=0.5 hundred million/g, excrement colibacillus group number≤30/g.Compared with common chemical fertilizer (100kg/ mu), it is possible to decrease
Soil valence heavy metal ions content more than 8%；Reduce crop heavy metal enrichment more than 10%；Reduction especially for Cr
Reach more than 70%；Make crop yield more than 5%, and there is the multiple efficacies such as water conservation, fertilizer conservation and improvement Soil structure.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is described in further detail.Following example are used for
The present invention is described, but is not limited to the scope of the present invention.
The preparation method of the bio-organic fertilizer of a kind of repairing heavy metal in soil, comprises the following steps:
(1) prepared by microbial bacterial agent
The preparation method of saccharomyces cerevisiae microbial inoculum: take saccharomyces cerevisiae strain 20 parts, the water termostat adding 30 DEG C of five times of quality stirs
Mixing 0.5h until being completely dissolved, obtained liquid adds in the fluid medium of 1L volume, detects cell density after cultivating 5d
Reach 2.2 × 109cfu/mL。
The ingredient of fluid medium is: 20g peptone, 10g yeast extract, 2g glucose, appropriate distilled water is molten
Solve, add 15ml 0.2% adenine solution, constant volume to 1L；120 DEG C of autoclaving 15min.
The preparation method of colloid bacillus cereus microbial inoculum: take colloid bacillus cereus strain 20 parts, adds 35 DEG C of five times of quality
Water termostat stirring 0.5h is until being completely dissolved；Obtained liquid adds in the fluid medium of 1L volume, and 150rpm, at 32 DEG C
Isothermal vibration cultivates 6d so that cell density reaches 7.8 × 109cfu/mL。
Consisting of of fluid medium: sucrose 10g, yeast extract 0.3g, ammonium sulfate 0.5g, calcium carbonate 0.5g, seven water sulfur
Acid magnesium 0.5g, dipotassium hydrogen phosphate 1g, adjust pH value 7.0-7.5 constant volume to 1L.
The preparation method of aspergillus niger microbial inoculum: take aspergillus niger strain 20 parts, adds the water termostat stirring of 30 DEG C of five times of quality
0.5h, until being completely dissolved, joins obtained liquid in inorganic salt solution, by inorganic salt solution (NaCl 1g, CaCl2
0.5g, KCl 0.5g, K2HPO40.5g, NaHCO30.25g, MgSO41g, FeSO4·7H2O 25mg, distilled water 2L) and 5kg
Dispensing mixing (wheat bran: soybean cake powder: peanut straw powder=2:2:1) is stirred inoculation.I.e. obtain black at 28 DEG C after ferment at constant temperature 5d
Aspergillosis microbial inoculum.
(2) straw-excrement composting becomes thoroughly decomposed
Taking crushed stalk is that diameter is less than the unqualified of 2mm, adds changing food waste mixing, adds decomposing agent and animal dung
Just, keeping moisture at 60%-70%, controlling compost height is 1.5 meters, controls to pile up, under the conditions of temperature is 30 DEG C, the 25d that becomes thoroughly decomposed；It
Rear accumulation is become thoroughly decomposed intensification so that temperature reaches 60-70 DEG C, maintains 2d, prepares the straw-excrement composting become thoroughly decomposed；
(3) preparation of biological organic fertilizer
Above-mentioned prepared straw-night soil is carried out airing so that it is after temperature is down to 30 DEG C, be uniformly blended into colloid spore
Bacillus microbial inoculum, and add the activated carbon of carbamide, magnesium sulfate and 0.5% and the Borax of 0.1%, it is sufficiently mixed fermentation 2d；Fermentation
Control temperature 25 DEG C after adding the saccharomyces cerevisiae microbial inoculum of 1% and the aspergillus niger microbial inoculum mix homogeneously of 1% after completing again to ferment 3d；
Mixture after fermentation is dried, measures pack, obtains bio-organic fertilizer.
The bio-organic fertilizer of described repairing heavy metal in soil, including the composition of following percentage by weight:
Described straw-night soil includes following main component:
Described feces of livestock and poultry is chicken manure and cattle manure mixed in equal amounts forms.
50% described straw includes 20% corn straw, 20% rice straw, 10% wheat stalk.
In each embodiment, the composition of each percentage by weight of bio-organic fertilizer please see table:
In each embodiment, the composition of each percentage by weight of straw-night soil please see table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Straw | 50 | 40 | 45 | 55 | 60 | 65 | 45 |
| Decomposing agent | 1 | 0.8 | 0.9 | 1.5 | 1.2 | 1.5 | 1 |
| Changing food waste | 5 | 3 | 5 | 8 | 7 | 6 | 5 |
| Feces of livestock and poultry | Surplus | Surplus | Surplus | Surplus | Surplus | Surplus | Surplus |
The bio-organic fertilizer preparing the present invention carries out test and obtains following data:
By the fertilizer application of the present invention in Rice Cropping, after testing 1 year heavy metal treatment effect and with common compound fertilizer
(N:P2O5:K2O=2:1:3) contrast, obtain following data:
Dose: 100kg/ mu, it is possible to decrease soil valence heavy metal ions content 8.5-10%；Reduce crop heavy metal
Enrichment 12-15%；Reduction for Cr reaches 75-80%；Make crop yield 6-8%.
It is below comparative example, the flora in the fertilizer in the present invention is made a concrete analysis of.
Comparative example 1
Colloid bacillus cereus microbial inoculum in embodiment 1 is removed, heavy metal treatment effect with common after testing a year
Compound fertilizer (N:P2O5:K2O=2:1:3) contrast, obtain following data:
Dose: 100kg/ mu, it is possible to decrease soil valence heavy metal ions content 2-3%；Reduce crop heavy metal rich
Collection 3-5%；Reduction for Cr reaches 25-30%；Make crop yield 4-5%.
Comparative example 2
Saccharomyces cerevisiae microbial inoculum in embodiment 1 is removed, heavy metal treatment effect being combined with common after test 1 year
Fertile (N:P2O5:K2O=2:1:3) contrast, obtain following data:
Dose: 100kg/ mu, it is possible to decrease soil valence heavy metal ions content 2-3%；Reduce crop heavy metal rich
Collection 2-3%；Reduction for Cr reaches 55-60%；Make crop yield 5-6%.
Comparative example 3
By in embodiment 1 aspergillus niger microbial inoculum remove, after testing 1 year heavy metal treatment effect and with common compound fertilizer
(N:P2O5:K2O=2:1:3) contrast, obtain following data:
Dose: 100kg/ mu, it is possible to decrease soil valence heavy metal ions content 3-4%；Reduce crop heavy metal rich
Collection 6-8%；Reduction for Cr reaches 45-50%；Make crop yield 3-5%.
Comparative example 4
Aspergillus niger microbial inoculum in embodiment 1 and saccharomyces cerevisiae microbial inoculum being removed, after testing 1 year, heavy metal treatment effect is also
With common compound fertilizer (N:P2O5:K2O=2:1:3) contrast, obtain following data:
Dose: 100kg/ mu, it is possible to decrease soil valence heavy metal ions content 1-2%；Reduce crop heavy metal rich
Collection 2-3%；Reduction for Cr reaches 20-30%；Make crop yield 3-5%.
It is used alone one it is recognised that three kinds of microorganisms are used in conjunction with ratio by the test data of comparative example 1-4
The heavy metal-polluted soil repairing effect that microorganism or two kinds of microorganisms are used in conjunction with is the most a lot.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and modification, these improve and modification
Also should be regarded as protection scope of the present invention.
Claims (7)
1. the bio-organic fertilizer of a repairing heavy metal in soil, it is characterised in that include the composition of following percentage by weight:
Colloid bacillus cereus microbial inoculum 1-3%
Carbamide 0.2-0.7%
Magnesium sulfate 0.05-0.2%
Activated carbon 0.3-0.8%
Borax 0.08-0.15%
Saccharomyces cerevisiae microbial inoculum 0.5-1.5%
Aspergillus niger microbial inoculum 0.7-2%.
Straw-night soil surplus.
The bio-organic fertilizer of a kind of repairing heavy metal in soil the most as claimed in claim 1, it is characterised in that described straw
Stalk-night soil includes following main component:
Straw 40-65%
Decomposing agent 0.8-1.5%
Changing food waste 3-8%
Feces of livestock and poultry surplus.
The bio-organic fertilizer of a kind of repairing heavy metal in soil the most as claimed in claim 1, it is characterised in that described poultry
Feces is chicken manure and cattle manure mixed in equal amounts forms.
4. the preparation method of the bio-organic fertilizer of a repairing heavy metal in soil, it is characterised in that comprise the following steps:
(1) preparation of microbial bacterial agent
A, the preparation method of saccharomyces cerevisiae microbial inoculum: take saccharomyces cerevisiae strain, add constant temperature in 30 DEG C of water and stir until being completely dissolved,
Obtained liquid adds in fluid medium, detects cell density and reach 1.5-3.1 × 10 after cultivating 4-6d9Cfu/mL, i.e.
Obtain saccharomyces cerevisiae microbial inoculum；
B, the preparation method of colloid bacillus cereus microbial inoculum: take colloid bacillus cereus strain, be added to the water constant temperature and stir to the most molten
Solve；Obtained liquid adds in fluid medium, and at 150rpm, 30-35 DEG C, isothermal vibration cultivates 4-6d so that cell density
Reach 6.2-8.3 × 109Cfu/mL, obtains colloid bacillus cereus microbial inoculum；
C, the preparation method of aspergillus niger microbial inoculum: take aspergillus niger strain, be added to the water constant temperature and stir until being completely dissolved, obtained
Liquid join in inorganic salt solution, inorganic salt solution is mixed with dispensing, be stirred inoculation, at 25-30 DEG C, constant temperature is sent out
Aspergillus niger microbial inoculum is i.e. obtained after ferment 4-6d；
(2) straw-excrement composting becomes thoroughly decomposed
Taking crushed stalk is that diameter is less than the unqualified of 2mm, adds changing food waste mixing, adds decomposing agent and feces of livestock and poultry, protects
Water holding divides at 60%-70%, and controlling compost height is 1.5 meters, controls to pile up, under the conditions of temperature is 25-35 DEG C, the 23-26d that becomes thoroughly decomposed；
Pile up intensification of becoming thoroughly decomposed afterwards so that temperature reaches 60-70 DEG C, maintain 2-3d, prepare the straw-excrement composting become thoroughly decomposed；
(3) preparation of biological organic fertilizer
Above-mentioned prepared straw-night soil is carried out airing so that it is after temperature is down to 30-35 DEG C, be uniformly blended into colloid spore
Bacillus microbial inoculum, and add carbamide, magnesium sulfate and activated carbon and Borax, it is sufficiently mixed fermentation 2-3d；Add after having fermented and make
Control temperature 25 DEG C after brewer yeast microbial inoculum and aspergillus niger microbial inoculum mix homogeneously again to ferment 2-3d；Mixture after fermentation is carried out
Be dried, metering packs, and obtains bio-organic fertilizer.
The preparation method of the bio-organic fertilizer of a kind of repairing heavy metal in soil the most as claimed in claim 4, it is characterised in that
Consisting of of described saccharomyces cerevisiae microbial inoculum fluid medium: 20g peptone, 10g yeast extract, 2g glucose, the most double
Steam water dissolution, add 15ml0.2% adenine solution, constant volume to 1L；120 DEG C of autoclaving 15min.
The preparation method of the bio-organic fertilizer of a kind of repairing heavy metal in soil the most as claimed in claim 4, it is characterised in that
Consisting of of the fluid medium of described colloid bacillus cereus microbial inoculum: sucrose 10g, yeast extract 0.3g, ammonium sulfate 0.5g, carbon
Acid calcium 0.5g, Magnesium sulfate heptahydrate 0.5g, dipotassium hydrogen phosphate 1g, adjust pH value 7.0-7.5 constant volume to 1L.
The preparation method of the bio-organic fertilizer of a kind of repairing heavy metal in soil the most as claimed in claim 4, it is characterised in that
The composition of described inorganic salt solution is: NaCl 1 part, CaCl20.5 part, KCl 0.5 part, K2HPO40.5 part, NaHCO3
0.25 part, MgSO41 part, FeSO4·7H2O 0.025 part, distilled water 2000 parts；Described dispensing is mixed into: 2000 parts of wheat bran,
Soybean cake powder 2000 parts, 1000 parts of peanut straw powder.
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| CN109912345A (en) * | 2019-04-02 | 2019-06-21 | 北京国达恒泰科贸有限责任公司 | Solid organic castoff is the function organic compound fertilizer and preparation method of substrate and application |
| CN109988020A (en) * | 2019-04-15 | 2019-07-09 | 深圳绿欣农业环保科技有限公司 | Aquaculture and planting industry cyclic utilization of waste method |
| CN110937952A (en) * | 2019-10-28 | 2020-03-31 | 安徽省通源环境节能股份有限公司 | Preparation method of ecological restoration matrix for heavy metal contaminated soil |
| CN113511926A (en) * | 2021-04-28 | 2021-10-19 | 新至农业生态科技有限公司 | Method for comprehensively utilizing livestock and poultry manure resources and returning to field |
| CN117185873A (en) * | 2023-09-20 | 2023-12-08 | 中国科学院沈阳应用生态研究所 | Fertilizer for improving soil productivity and preparation method thereof |
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| CN110937952A (en) * | 2019-10-28 | 2020-03-31 | 安徽省通源环境节能股份有限公司 | Preparation method of ecological restoration matrix for heavy metal contaminated soil |
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