CN104788265B - Salt-soda soil biological modification fertilizer and its preparation based on high sulfur coal gangue - Google Patents
Salt-soda soil biological modification fertilizer and its preparation based on high sulfur coal gangue Download PDFInfo
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Abstract
Salt-soda soil biological modification fertilizer based on high sulfur coal gangue, by 50~60 parts of high sulfur coal gangue microbial fermentation product, 20~30 parts of the cow dung become thoroughly decomposed or chicken manure, 1~2 part of citric acid, 1~2 part of oxalic acid, 2~4 parts of urea, 2~4 parts of sulphur ammonium, 2~4 parts of MAP, 1~3 part of potassium sulfate, 2~5 parts of ferrous sulfate, 1~2 part of zinc sulfate, 1~2 part of manganese sulfate, 1~10 part of bentonite is mixed, high sulfur coal gangue microbial fermentation product therein is with by Thiobacillus thioxidans, bacillus subtilis, bacillus megaterium, the complex microorganism bacterium solution of bacillusmusilaginosiengineering and lactic acid enterococcus faecalis composition carries out the product of activation process to broken high sulfur coal gangue.Fertilizer of the present invention realizes the recycling of high sulfur coal gangue, can promote inland alkaline land improving, improves crop yield, improves the ecological environment.
Description
Technical field
The present invention relates to a kind of salt-soda soil biological modification fertilizer, more particularly to one kind is suitable for China inland salt-soda soil and used
Special bio improving fertilizer, and the biological modification fertilizer preparation method.
Background technology
Gangue is the solid waste produced in coal production and watering and separation procedure, and its main component is SiO2And Al2O3,
The Fe not waited containing quantity also in addition2O3、CaO、MgO、K2O、P2O5、SO3And the trace element such as Fe, Mn, Cu, Zn, contain simultaneously
A certain amount of humic acid.The discharge capacity of gangue is equivalent to 10% or so of coal production, and China gives off nearly 100,000,000 tons of coals every year
Spoil, has added up to store up more than 30 hundred million tons at present, has taken up an area about 1.2 ten thousand hectares, is that the maximum industrial solid of current China's discharge capacity gives up
One of gurry.A large amount of stackings of gangue, not only cover soil, and are possible to contaminated soil and underground water, while after spontaneous combustion
The pernicious gases such as a large amount of sulfur dioxide, nitrogen oxides, oxycarbide and flue dust are given off, serious environmental problem is produced, it would be highly desirable to
Administer.
High sulfur coal gangue is the spoil that high sulfur content colliery is produced in production and watering and separation procedure, the element sulphur contained by it
More than 2%, spontaneous combustion risk is larger, and substantial amounts of sulfur dioxide is discharged after spontaneous combustion, pollutes extremely serious.
Current China high sulfur coal gangue is mainly used in generating electricity, produces construction material, remanufacture sulfuric acid etc..Due to gangue
Middle carbon content is higher, and the benefit for producing sulfuric acid is relatively low.And when producing spoil brick, and it is rotten because producing acid mist in scum and production process
The reasons such as erosion equipment also are difficult to be utilized.
Contain the nutrition such as nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, silicon, iron, manganese, copper, zinc member necessary to plant growth in gangue
Element, and be the ideal material of soil improvement containing a large amount of humic acids.But high sulfur coal gangue at present application agriculturally compared with
Few, effect is not also fairly obvious.
China has 99,130,000 hectares of salt-soda soil, and wherein inland-type saline alkali land area is maximum, accounts for national salt-soda soil
69%.Inland salt-soda soil has that surface soil alkalinity is strong, Sodium by substitution ion concentration is high, soil physical property is poor, soil nutrient availability
The low feature of low, fertility, improvement salt-soda soil is significant to Ensuring Food Safety and ecological safety.
The conventional technical measures in improvement salt-soda soil have hydraulic engineering measure, biological control measure, agronomic measures and chemistry to change at present
Good measure.Wherein chemical modifying measure plays an important roll in the alkaline land improving of inland, desulfurated plaster, ardealite, weathered coal,
The materials such as organic manure, furfural dregs, organic acid, sulphur, ferrous sulfate, aluminum sulfate are more conventional chemical modifying materials.
It is special that CN 102219614B " a kind of biological improving fertilizer special for saline-alkali soil and preparation method thereof " disclose a kind of salt-soda soil
With biological modification fertilizer, with turf, pine needle, cow dung, bio-fertilizer（The fertile fertilizer of promise）, phosphate fertilizer, nitrogenous fertilizer and desulfurization slag or sulphur be raw material, it is main
Consider the cooperation of bio-fertilizer, organic fertilizer and chemical fertilizer.CN 103553808A " a kind of humic acid alkaline land modifying agent and its system
Preparation Method " discloses a kind of using low-order coal as the humic acid alkaline land modifying agent mainly prepared, and main component includes low-order coal, urine
Element, ground phosphate rock, fulvic acid etc., are produced, action effect is not notable using the method for drying granulation.
Gangue has been applied as a kind of heap high-volume larger industrial solid castoff in alkaline land improving.Such as《Salt
The experimental study of alkali land soil-by taking flyash and gangue improvement saline-alkali soil as an example》（《He'nan Normal University's journal（It is natural
Science version）The 4th phase of volume 39 in 2011, Zhao Xu, Peng Peihao, Li Jingji, Chengdu University of Technology）Disclose and use flyash and coal
Spoil improves the effect of Yinchuan salinized soil, it is believed that flyash and gangue have certain effect, but gangue to alkaline land improving
Effect be worse than flyash, its reason is during gangue does not do any activation process and is directly manured into soil.《Utilize huge bud
Spore bacillus prepares high sulfur coal gangue fertilizer》（《Environmental project journal》2nd phase in 2015, Yuan Xiangfen, Xie Chengwei, Guizhou University）It is public
A kind of method that high sulfur coal gangue is prepared into fertilizer by utilization bacillus megaterium has been opened, various nutrition are made by microculture
Element validity is improved, but the microbial inoculum used is single microbial inoculum, does not also add other organic matters and chemical fertilizer, effect is more
It is limited.CN 1740122A " a kind of composite microbiological fertilizer and its production method using gangue as matrix " disclose a kind of profit
It is, using gangue as matrix and carrier, to add a certain amount of chicken manure etc. organic with the composite microbiological fertilizer that gangue is matrix
Fertilizer and chemical fertilizer, while accessing microbial bacterial agent production composite microbiological fertilizer.The patent using gangue as microbe carrier, together
When with the addition of organic fertilizer and chemical fertilizer, realize organic and inorganic, biological combination, but gangue used is not by ultrasonic wave
Reason and activation of microorganism processing, are primarily used on common agricultural farms, do not account for the feature in salt-soda soil.
The content of the invention
It is that high sulfur coal gangue is sought it is an object of the invention to provide a kind of salt-soda soil biological modification fertilizer based on high sulfur coal gangue
A kind of new Utilizing Resource Pattern is sought, while providing new chemical modifying material for inland alkaline land improving.
A kind of preparation method of above-mentioned salt-soda soil biological modification fertilizer is provided, is another goal of the invention of the present invention.
Salt-soda soil biological modification fertilizer of the present invention based on high sulfur coal gangue is mixed by the component of following parts by weight
Conjunction is made：20~30 parts of 50~60 parts of high sulfur coal gangue microbial fermentation product, the cow dung become thoroughly decomposed or chicken manure, citric acid 1~2
Part, 1~2 part of oxalic acid, 2~4 parts of urea, 2~4 parts of sulphur ammonium, 2~4 parts of MAP, 1~3 part of potassium sulfate, ferrous sulfate 2~5
Part, 1~2 part of zinc sulfate, 1~2 part of manganese sulfate, 1~10 part of bentonite.
In said components of the present invention, described high sulfur coal gangue microbial fermentation product is to broken with complex microorganism bacterium solution
Broken high sulfur coal gangue carries out the product after activation process.Wherein, described complex microorganism bacterium solution is by Thiobacillus thioxidans
(thiobacillus thiooxidans), bacillus subtilis (Bacillus subtilis), bacillus megaterium
(Bacillus megaterium), bacillusmusilaginosiengineering (Bacillus mucilaginosus) and lactic acid enterococcus faecalis
The mixed bacteria liquid that (Enterococcus faecalis) is collectively constituted.The bacterium number amount ratio of wherein various microorganisms meets sulfur oxide
Thiobacillus: bacillus subtilis: bacillus megaterium: bacillusmusilaginosiengineering: lactic acid enterococcus faecalis=4: 1~1.5: 1~1.5:
1~1.5: 1~1.5, and bacterial concentration is not less than 1010cfu/ml。
In the present invention, the culture medium for cultivating Thiobacillus thioxidans is：(NH4)2SO40.2g, KH2PO43g, element S
10g, MgSO4·7H2O 0.5g, CaCl2·2H2O 0.25g, liquid microelement 5ml, pH=2.4, distilled water 1000ml；Culture
Condition：30 DEG C, 120r/min constant-temperature tables；Culture 3~5 days.Cultivate bacillus subtilis, bacillus megaterium, gel-shaped bud
The culture medium of spore bacillus and lactic acid enterococcus faecalis is：Beef extract 5.0g, peptone 10.0g, NaCl 5g, water 1000ml；Cultivate bar
Part：PH=7.0,30 DEG C, 120r/min constant-temperature table Liquid Cultures；Culture 48 hours.
The high sulfur coal gangue is preferably broken into the fineness of 150~200 mesh by the present invention.
It is highly preferred that broken high sulfur coal gangue is ultrasonically treated, the ultrasonic frequency handled for 40~
60KHz。
Specifically, present invention also offers a kind of preparation method of the salt-soda soil biological modification fertilizer based on high sulfur coal gangue,
It is that high sulfur coal gangue is broken into 150~200 targeted fine powders, with 40~60KHz of frequency ultrasonication 20~30 minutes, connects
Enter to account for batch type culture 20~30 days at the complex microorganism bacterium solution of high sulfur coal gangue fine powder weight 1~5%, 30~35 DEG C,
Obtain high sulfur coal gangue microbial fermentation product.By the high sulfur coal gangue microbial fermentation product of the parts by weight with it is described heavy
The cow dung become thoroughly decomposed or chicken manure, citric acid, the oxalic acid for measuring number are well mixed, and static gas wave refrigerator 10~15 days adds the weight
Urea, sulphur ammonium, MAP, potassium sulfate, ferrous sulfate, zinc sulfate, manganese sulfate and the bentonite of number are stirred, and extruding is made
The salt-soda soil biological modification fertilizer is made in grain.
Wherein, preferably the high sulfur coal gangue fine powder after ultrasonication is adjusted to 20~40wt% of moisture, then accessed
Complex microorganism bacterium solution.
The present invention carries out extruder grain using to roller Squeezinggranulator to salt-soda soil biological modification fertilizer, is adjusted during granulation
The water content of material is 15~20%.
The present invention salt-soda soil biological modification fertilizer is made 1.00~4.75mm of particle diameter product.
Further, the invention provides the above-mentioned salt-soda soil biological modification fertilizer based on high sulfur coal gangue in inland salt-soda soil
On application method：Prior to seeding, with reference to site preparation, every mu of base applies 500~600 kilograms of biological modification fertilizer, Rotary tillage rake a kind of farm tools, make its with
Soil is sufficiently mixed.
The present invention is directed to the soil characteristic in salt-soda soil particularly inland salt-soda soil, big, agriculture with reference to high sulfur coal gangue reserves
The problem of utilization rate is low, nutrient active is poor, using ultrasonication technology and complex micro organism fungicide activation process technology, micro-
In the presence of biology, the slightly solubility nutrient in high sulfur coal gangue is activated into water solubility or the solubility in citric acid that plant easily absorbs
Composition, while required for adding the alkaline land improving such as organic fertilizer, ferrous sulfate, oxalic acid, citric acid material and plant growth again
The elements such as nitrogen, phosphorus, potassium, iron, manganese, zinc, are prepared into salt-soda soil biological modification fertilizer, and organic and inorganic, biotic component is combined, a large amount of,
Medium-microelements are combined, and are applied to alkaline land soil, and regulation soil ion replacement process reduces soil pH value, improves soil
Earth nutrient situation and permeability, increase soil fertility, and improve salt-soda soil physicochemical character, realize the recycling of gangue,
To promoting China's inland alkaline land improving, crop yield is improved, is improved the ecological environment significant.
The characteristics of salt-soda soil biological modification prepared by the present invention is fertile embodies in the following areas.
1st, active ingredient in high sulfur coal gangue is divided using ultrasonic technology and complex micro organism fungicide fermentation technique
From degraded.
1）, first by high sulfur coal gangue carry out ultra micro finess disintegrating（150~200 mesh）, improve its specific surface area and can
Plasticity, has broken the lattice structure of the elements such as slightly solubility silicon, aluminium, calcium, magnesium, potassium, is that gangue further lay a good foundation by activation.
2）, the gangue after crushing be ultrasonically treated again, using the cavitation of ultrasonic wave, enable media to uniform
Mixing, it is irregular to eliminate local concentration, improves reaction speed, promotes the formation of cenotype, and the aggregate being likely to form is played cut
Fragmentation is cut, is conducive to bioactivation.
3）, oxidized sulphur Thiobacillus, bacillus subtilis, bacillus megaterium, bacillusmusilaginosiengineering and lactic acid excrement intestines
The collective effect of coccus etc., will contain the slightly solubility mineral nutritions such as substantial amounts of silicon, aluminium, Calcium Magnesium Sulphur, phosphorus, potassium in high sulfur coal gangue
It is element activated to discharge, it is changed into being conducive to the water solubility or solubility in citric acid form of plant absorption, increases soil effective element content,
Plant nutrient is supplemented, strengthens plant anti-salt alkali ability.Meanwhile, the gangue after bioactivation is applied as alkaline land improving material
After soil, the element sulphur discharged discharges H in the case where Thiobacillus thioxidans acts on+, the pH value of salt affected soil is effectively reduced, is reached
Improve the purpose in salt-soda soil；The aluminium ion discharged can both replace soil colloid replacement property Na+, hydrolysis can be passed through again
Produce H+, reach the effect of reduction soil pH value；The elements such as the silicon, calcium, magnesium, potassium, copper, zinc, iron, the manganese that discharge can be with soil
In Na+Replacement property Na in generation replacement reaction, effectively reduction soil+Content, reduction pH value, the murder by poisoning of basicity and sodium
Effect, reaches the purpose in effectively improvement salt-soda soil.
2nd, ensure that the microbial bacterial agent added in biological modification fertilizer can effectively be survived using multiple means.
1）, accelerator and carbon source as microbial fermentation of citric acid, oxalic acid is added in the gangue of activation, add simultaneously
Plus the cow dung become thoroughly decomposed or chicken manure carry out second incubation, improve the survival energy of microbial bacterial agent as the carrier of microbial fermentation
Power and subsequent activation ability.
2）, cow dung can reduce soil pH value with chemical improvement agent ferrous sulfate cooperatively improved soil, regulation soil from
Subsubstitution process, improves soil nutrient status and permeability, increases soil fertility.
3）, for ensure improving fertilizer in microbial bacterial agent survival rate, using under normal temperature extruder grain method produce improving fertilizer,
And in view of the characteristics of gangue dispersiveness is strong, adds a certain amount of sulphur ammonium and bentonite in improving fertilizer, make mixed material viscosity
Increase, improves the ratio of briquetting and plasticity of product, is readily transported and is applied with mechanization, while considerably reducing improving fertilizer
Granulate cost.
3rd, organic and inorganic and biological polynary combination, the combination of chemical modifying and biological modification are realized.
1）, with the addition of cow dung or chicken manure in improving fertilizer, and with the addition of according to crop nutrition content demand rule appropriate nitrogen phosphorus
Potash fertilizer and zinc-manganese fertilizer, organic-inorganic are combined, and nutrient balance improves soil texture, promote soil colloid to be formed, and improve soil fertilizer
Power, effectively reduces soil pH, adds the survival rate of plant.
2）, for inland alkaline land soil feature, on the basis of gangue bioactivation, addition organic fertilizer, sulfuric acid are sub-
The alkaline land improving material such as iron, reduces soil pH value, improves topsoil soils bioactivity, improves soil nutrient status and penetrating
Property, increase soil fertility, form the ideal rhizosphere desalination layer of plant growth.
3）, gangue be the maximum solid waste of China, processing salt-soda soil biological modification fertilizer can turn waste into wealth,
Solving a large amount of gangues banks up the problem of causing environmental pollution simultaneously, realizes recycling for resource.
Embodiment
Embodiment 1
Area of Tong coal corporation in Shanxi group subordinate colliery, the coal production are picked up from as the high sulfur coal gangue of the present embodiment primary raw material
Sulphur coal.Chemically examined through Soil In Shanxi Province environment and nutrients resource key lab, the fundamental property of high sulfur coal gangue is as follows：SiO2
24.56%, Al2O318.53%, SO33.27%, CaO 2.12%, Fe2O33.92%, MgO 0.43%, K2O 0.36%, NaO
0.33%, P2O50.85%, MnO 0.071%, pH4.76, organic matter 34.5%.
High sulfur coal gangue is first broken into below 50mm fritter with disintegrating machine, then cross 200 after being ground with Highefficientpulverizer
Mesh sieve, with frequency 60KHz ultrasonication 30 minutes.
Prepare Thiobacillus thioxidans bacterium solution：Culture medium：(NH4)2SO40.2g, KH2PO43g, element S 10g, MgSO4·
7H2O 0.5g, CaCl2·2H2O 0.25g, liquid microelement 5ml, pH=2.4, distilled water 1000ml.Condition of culture：30 DEG C,
120r/min constant-temperature tables.Incubation time：5 days.
Prepare the mixed bacteria liquid of bacillus subtilis, bacillus megaterium, bacillusmusilaginosiengineering and lactic acid enterococcus faecalis：
Culture medium：Beef extract 5.0g, peptone 10.0g, NaCl 5g, water 1000ml.Condition of culture：PH=7.0,30 DEG C, 120r/
Min constant-temperature table Liquid Cultures.Incubation time：48 hours.Four kinds of bacterium are individually cultivated, and are adjusted to and Thiobacillus thioxidans bacterium solution
Concentration identical bacterium solution.Four kinds of isometric bacterium solutions are taken to be mixed to get mixed bacteria liquid.
The parts by volume of Thiobacillus thioxidans bacterium solution 40 is taken, complex microorganism bacterium solution is mixed into the parts by volume of mixed bacteria liquid 60.
The concentration for adjusting complex microorganism bacterium solution is not less than 1010cfu/ml。
Take the high sulfur coal gangue powder 420kg after above-mentioned ultrasonication, add water 60kg, adjust its moisture 20~
25% or so, the prior cultured complex microorganism bacterium solution 20kg of access, batch type culture 25 days, obtain height at 32 DEG C
Sulphur gangue microbial fermentation product.
The high sulfur coal gangue microbial fermentation product 500kg after culture is taken, with decomposed cow dung 250kg, citric acid 10kg, grass
Sour 10kg adds stirrer for mixing uniformly together, and static gas wave refrigerator 15 days obtains microbial manure.
Weigh urea 25kg, sulphur ammonium 25kg, MAP 30kg, potassium sulfate 20kg, ferrous sulfate 40kg, zinc sulfate
10kg, manganese sulfate 10kg, after being crushed respectively with pulverizer, add in mixer together with bentonite 50kg and are uniformly mixed,
Add mentioned microorganism fertilizer to be well mixed, adjust to water content 15%, extruder grain is carried out on to roller Squeezinggranulator,
Sifted separates 1.00~4.75mm of particle diameter product, be packaged to be the salt-soda soil biological modification fertilizer based on high sulfur coal gangue into
Product.
It is blue beautiful in the Shi Lipu townshiies of Datong City, Shanxi Province Tianzhen County three using salt-soda soil biological modification manufactured in the present embodiment fertilizer
The field test of compliance test result is carried out in alkaline land improving base in fort village.
Soil property：Severe soda salinization soil, pH10.2, electrical conductivity (EC) 1.57ms/cm, basicity (ESP) 41.5%；
Soil with organic matter 8.17g/kg, available phosphorus 7.6mg/kg, available potassium 111.5mg/kg.
Test process is as follows：1）Processing 1：Using the present embodiment biological modification fertilizer, 500kg/ mus of amount of application.2）Processing 2：Make
With with the present embodiment biological modification fertilizer contained N, P2O5、K2O identicals straight fertilizer (urea, MAP, potassium sulfate).
Plot area：66.7 square meters/area, are repeated 3 times.
Trial crops：Corn, kind is the Lushui River jade 36, is bred as by millet research institute of academy of agricultural sciences of Shanxi Province.
Field management：After upper season crop harvesting, turn over, harrow a kind of farm tools, pour deeply once, 200 sides of irrigation volume/mu.The Second Year spring
Preceding prepartion of land is broadcast in early April in season, progress, is turned over, is harrowed a kind of farm tools, applies 500 kilograms of salt-soda soil biological modification fertilizer, other processing are also pressed
Dose is applied, and is carried out rotary tillage with rotary cultivator, fertilizer is well mixed with soil.
Started sowing on May 3, seeding method is program request, 60 centimetres of line-spacing, 25 centimetres of spacing in the rows, covering with plastic film.October 15
Harvest.
June 2 carried out seedlings investigation, the results are shown in Table 1, October 15 carried out harvest time investigation, the results are shown in Table 2, table 3 and table 4.
Corn emergence rate can be increased substantially using biological modification fertilizer it can be seen from the investigation result of table 1, while seedling stage
Plant height, stem are thick and biomass increases by 17.7%, 25.2% and 25.9% respectively, and root activity improves 84.5%, and corn anti-adversity ability is big
Amplitude increase.
Applied it can be seen from soil physical and chemical property investigation result after harvesting after biological modification fertilizer, soil pH is significantly
Decline, soil salt content (EC) and basicity (ESP) reduction, the soil organism, available phosphorus and available potassium have in various degree
Improve, edaphon total amount increases by 3.25 times, and soil weight reduction, permeability improves, and fertility is improved.
Use bacterium, gram-positive bacteria, leather in alkaline land soil before and after PLFA biomarkers method measure administration improving fertilizer
Lan Shi negative bacteriums, fungi, actinomyces and the content of protist.As a result show, using biological modification fertilizer after not only increase soil
Earth micro organism quantity, while also significantly enriching the diversity of edaphon.
Embodiment 2
Shanxi Lu An groups subordinate colliery, the coal production are picked up from as the high sulfur coal gangue of the present embodiment primary raw material
Sulphur coal.Chemically examined through Soil In Shanxi Province environment and nutrients resource key lab, the fundamental property of high sulfur coal gangue is as follows：SiO2
27.12%, Al2O317.21%, SO34.12%, CaO 2.52%, Fe2O33.55%, MgO 0.35%, K2O 0.32%, NaO
0.31%, P2O50.65%, MnO 0.056%, pH4.45, organic matter 36.9%.
High sulfur coal gangue is first broken into below 50mm fritter with disintegrating machine, then cross 200 after being ground with Highefficientpulverizer
Mesh sieve, with frequency 60KHz ultrasonication 30 minutes.
The cultured parts by volume of Thiobacillus thioxidans bacterium solution 40 of Example 1, the body of mixed bacteria liquid 40 cultivated with embodiment 1
Product part is mixed into complex microorganism bacterium solution.The concentration for adjusting complex microorganism bacterium solution is not less than 1010cfu/ml。
The high sulfur coal gangue powder 550kg after above-mentioned ultrasonication is taken, the regulation that adds water is to moisture 25%, and access is compound
Microbial inoculum 20kg, batch type culture 25 days at 32 DEG C, obtains high sulfur coal gangue microbial fermentation product.
The high sulfur coal gangue microbial fermentation product 500kg after culture is taken, with Chicken dung 250kg, citric acid 10kg, grass
Sour 10kg adds stirrer for mixing uniformly together, and static gas wave refrigerator 15 days obtains microbial manure.
Weigh urea 20kg, sulphur ammonium 20kg, MAP 30kg, potassium sulfate 20kg, ferrous sulfate 30kg, zinc sulfate
10kg, manganese sulfate 10kg, after being crushed respectively with pulverizer, add in mixer together with bentonite 70kg and are uniformly mixed,
Add mentioned microorganism fertilizer to be well mixed, adjust to water content 15%, extruder grain is carried out on to roller Squeezinggranulator,
Sifted separates 1.00~4.75mm of particle diameter product, be packaged to be the salt-soda soil biological modification fertilizer based on high sulfur coal gangue into
Product.
Using salt-soda soil biological modification manufactured in the present embodiment fertilizer, in the holy day in Shanxi Province Shuozhou City Huairen County Mao Zao towns Shanxi
The field test of compliance test result is carried out in Farming Ltd. salt-soda soil base.
Soil is moderate soda salinization soil, pH9.54, electrical conductivity (EC) 1.35ms/cm, total salt quantity 0.41%, basicity
(ESP) 38.6%, soil organism 9.13g/kg, 5000 mu of area of base.
Test process is as follows：1）Processing 1：Using the present embodiment biological modification fertilizer, 500kg/ mus of amount of application.2）Processing 2：Make
With with the present embodiment biological modification fertilizer contained N, P2O5、K2O identicals straight fertilizer (urea, MAP, potassium sulfate).
Plot area：100 square meters/area, are repeated 3 times.
Trial crops：Corn, kind is first jade 335.
Field management：After upper season crop harvesting, turn over, harrow a kind of farm tools, pour deeply once, 200 sides of irrigation volume/mu.The Second Year spring
Preceding prepartion of land is broadcast in early April in season, progress, is turned over, is harrowed a kind of farm tools, applies 500 kilograms of salt-soda soil biological modification fertilizer, other processing are also pressed
Dose is applied, and is carried out rotary tillage with rotary cultivator, fertilizer is well mixed with soil.
Started sowing on May 5, seeding method is program request, 55 centimetres of line-spacing, 30 centimetres of spacing in the rows, covering with plastic film.October 10
Harvest.
June 5 carried out seedlings investigation, the results are shown in Table 5, October 15 carried out harvest time investigation, the results are shown in Table 6, table 7 and table
8。
Corn emergence rate 25.8% can be improved using biological modification fertilizer it can be seen from the investigation result of table 5, while seedling stage
Plant height, stem are thick and biomass increases by 19.1%, 21.4% and 30.9% respectively, and root activity improves 53.1%, and corn anti-adversity ability is big
Amplitude increase.
Applied it can be seen from soil physical and chemical property investigation result after harvesting after biological modification fertilizer, soil pH is significantly
Decline, soil salt content (EC) and basicity (ESP) reduction, the soil organism, available phosphorus and available potassium have in various degree
Improve, edaphon total amount increases by 2.15 times, and soil weight reduction, permeability improves, and fertility is improved.
Use bacterium, gram-positive bacteria, leather in alkaline land soil before and after PLFA biomarkers method measure administration improving fertilizer
Lan Shi negative bacteriums, fungi, actinomyces and the content of protist.As a result show, using biological modification fertilizer after not only increase soil
Earth micro organism quantity, while also significantly enriching the diversity of edaphon.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Modification or equivalent are planted, this modification or equivalent also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of salt-soda soil biological modification fertilizer based on high sulfur coal gangue, is mixed by the component of following parts by weight：High-sulfur
20~30 parts of 50~60 parts of gangue microbial fermentation product, the cow dung become thoroughly decomposed or chicken manure, 1~2 part of citric acid, oxalic acid 1~2
Part, 2~4 parts of urea, 2~4 parts of sulphur ammonium, 2~4 parts of MAP, 1~3 part of potassium sulfate, 2~5 parts of ferrous sulfate, zinc sulfate 1~
2 parts, 1~2 part of manganese sulfate, 1~10 part of bentonite；Wherein, described high sulfur coal gangue microbial fermentation product is with compound micro-
Biological bacterium solution carries out the product after activation process to broken high sulfur coal gangue；Described complex microorganism bacterium solution is by sulfur oxide
Thiobacillus, bacillus subtilis, bacillus megaterium, bacillusmusilaginosiengineering and lactic acid enterococcus faecalis according to 4: 1~1.5: 1~
1.5: 1~1.5: 1~1.5 mixed bacteria liquid of the bacterium number amount than composition.
2. biological modification fertilizer in salt-soda soil according to claim 1, it is characterized in that the concentration of the complex microorganism bacterium solution is not
Less than 1010cfu/ml。
3. biological modification fertilizer in salt-soda soil according to claim 1 or 2, it is characterized in that the consumption of the complex microorganism bacterium solution
For the 1~5% of high sulfur coal gangue weight.
4. salt-soda soil biological modification according to claim 1 fertilizer, it is characterized in that the high sulfur coal gangue is broken into 150~
200 targeted fine powders.
5. the salt-soda soil biological modification fertilizer according to claim 1 or 4, it is characterized in that broken high sulfur coal gangue is ultrasonic
Ripple is pre-processed, and the ultrasonic frequency of processing is 40~60KHz.
6. a kind of preparation method of the salt-soda soil biological modification fertilizer based on high sulfur coal gangue, is to be broken into the high-sulfur bastard coal of fine powder
Access accounts for batch type culture 20 at the complex microorganism bacterium solution of high sulfur coal gangue fine powder weight 1~5%, 30~35 DEG C in stone
Obtain high sulfur coal gangue microbial fermentation product within~30 days；By 50~60 parts by weight high sulfur coal gangue microbial fermentation products and 20
The cow dung or chicken manure, 1~2 parts by weight of lemon acid, 1~2 parts by weight oxalic acid that~30 parts by weight are become thoroughly decomposed are well mixed, static gas wave refrigerator 10
~15 days, add 2~4 parts by weight of urea, 2~4 parts by weight sulphur ammoniums, the ammonium of 2~4 parts by weight of phosphoric acid one, 1~3 parts sulfuric acid
Potassium, 2~5 parts by weight of ferrous sulfate, 1~2 parts sulfuric acid zinc, 1~2 parts sulfuric acid manganese and 1~10 parts by weight of bentonite are stirred
Mix uniform, salt-soda soil biological modification fertilizer is made in extruder grain；Wherein, described complex microorganism bacterium solution is by sulfur oxide sulphur bar
Bacterium, bacillus subtilis, bacillus megaterium, bacillusmusilaginosiengineering and lactic acid enterococcus faecalis are according to 4: 1~1.5: 1~1.5:
1~1.5: 1~1.5 mixed bacteria liquid of the bacterium number amount than composition.
7. the preparation method of biological modification fertilizer in salt-soda soil according to claim 6, it is characterized in that high sulfur coal gangue is crushed
Into 150~200 targeted fine powders, composite microbial bacteria is accessed after 20~30 minutes with 40~60KHz of frequency ultrasonication again
Liquid.
8. the preparation method of the salt-soda soil biological modification fertilizer according to claim 6 or 7, it is characterized in that regulation high sulfur coal gangue
The moisture of fine powder is 20~40wt%, then accesses complex microorganism bacterium solution.
9. the preparation method of the salt-soda soil biological modification fertilizer according to claim 6 or 7, it is characterized in that being made using to roller extruding
Grain machine carries out extruder grain, and the water content that material is adjusted during granulation is 15~20%.
10. the preparation method of the salt-soda soil biological modification fertilizer according to claim 6 or 7, it is characterized in that the salt-soda soil is given birth to
The particle diameter of thing improving fertilizer is 1.00~4.75mm.
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