CN108610190A - A kind of itself sustained release alga fertilizer preparation method for capableing of repair saline-land - Google Patents
A kind of itself sustained release alga fertilizer preparation method for capableing of repair saline-land Download PDFInfo
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- CN108610190A CN108610190A CN201810897267.3A CN201810897267A CN108610190A CN 108610190 A CN108610190 A CN 108610190A CN 201810897267 A CN201810897267 A CN 201810897267A CN 108610190 A CN108610190 A CN 108610190A
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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
- 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
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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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 a kind of itself sustained release alga fertilizers and preparation method thereof for capableing of repair saline-land, include the following steps：Pretreatment of raw material；Enzymolysis centrifugation；It is prepared by modified seaweed gel complex liquid；It is granulated；Coating.Product of the present invention mixes coating with the insoluble matter absorbed convenient for crop after the polysaccharide of seaweed itself and the sustained release component and enzymolysis of macromolecular substances progress cross-linked structure, it is formed by itself sustained release alga fertilizer and plant resistance and root system nutrition absorption can be improved, it is remarkably improved chemical fertilizer utilization rate, mitigates environmental pollution；Chemical fertilizer, Pesticide use amount and fertilizer application frequency can be reduced, labor of fertilizer application intensity is reduced, labour is saved, can also promote the soil fertility level of fertilized soil.Meanwhile the water-absorbing-retaining experiment of itself sustained release alga fertilizer in the soil shows that the specific retention and water retention of soil can be increased using itself sustained release alga fertilizer, low-moisture evaporation is dropped, the watering period for extending soil, the utilization rate of moisture is improved, while can keep soil from packing together.
Description
Technical field
The present invention relates to seaweed active ingredient technical field of comprehensive utilization, and in particular to it is a kind of be capable of repair saline-land from
Body is sustained alga fertilizer and preparation method thereof.
Background technology
Contain plurality of active ingredients in seaweed rich reserves and seaweed, in fields such as food, drug, daily use chemicals, fertilizer, feeds
There is important application.By abundant tangleweed resource, China has been built up tangleweed production in large scale and adds
Work industry forms the tangleweed industrial system based on brown alga and red algae, it is multiple to be related to food, feed, medicine, chemical industry etc.
Field becomes the important component of marine economy.At present Chinese large-sized seaweed processing relate generally to algin such as alginate,
The extractions such as agar-agar, carragheen are processed.Meanwhile carrotene, astaxanthin, pigments such as phycobniliprotein and anti-oxidant are extracted from seaweed
The high level active materials such as the polyunsaturated fatty acids such as object and DHA and arachidonic acid have become the development of seaweed processing enterprise
Emphasis direction.But the residuals after above-mentioned processing, in addition to the feed that partly can be used for aquaculture, most of seaweed slag
Also it is handled using the modes such as landfill or burning, not only comprehensive utilization ratio is low, also there is insoluble problem of environmental pollution.
Marine alga fertilizer has a variety of high activity compositions and nutrient, has bright as natural marine organism fertilizer of new generation
Aobvious effect of increasing production and extremely strong degeneration-resistant effect.21 are contributed to its outstanding behaviours in terms of environmental protection, economic benefit
The agricultural production in century.Compared with chemical fertilizer, alga fertilizer is promoting crop yield, is improving plant stress-resistance ability and without public affairs
Evil etc. all has incomparable advantage.Relative to common fertilizer, it can not only be obviously promoted crop root development, carry
High photosynthesis of plant, and fruit can also be promoted precocious, crops quality is substantially improved, especially to vegetables, melon and fruit, flowers
Equal industrial crops, application effect are more notable.Currently, the main development that the slow controlled release of marine alga fertilizer has become marine alga fertilizer becomes
Gesture, but the high water conservation rarely seen Product Report of seaweed slow-release or control-release fertilizer at present.In addition, traditional fertilizer slow release, controlled-release technology mainly make
With polymer capsule (clothing) technique (such as spray drying technology).There are fertilizer raw material wastes greatly, of high cost, can not achieve work
Object is quick-acting to nutrient, long-acting the problems such as needs.Meanwhile sustained release in the prior art is all by the way that exogenous substance shape is added
At slow-releasing granules, there is no the reports that itself slow-releasing granules is formed by the polysaccharide in seaweed itself.
The plant improvement method etc. in washing salinity by irrigation, deep ploughing, physical-chemical process and agricultural is often used for salinization soil, this
Improvement soil can be played in certain degree a bit, promotes the effect of plant development.But using it is of high cost, easy to produce two
Secondary pollution.Microbial manure is current relatively new type improved products, more effectively can comprehensively utilize salinization soil.Very much
Experts and scholars approve the improved effect of microorganism.It is not only at low cost, and the advantages that non-secondary pollution.But it applies at present micro-
Large-scale promotion application is not yet realized there are still the drawbacks such as of high cost, effect is poor are improved in bio-feritlizer improving salinization soil
Invention content
The purpose of the present invention is to provide a kind of itself sustained release alga fertilizer preparation methods for capableing of repair saline-land, utilize sea
It is cross-linked to form macromolecular sustained release object between polysaccharide and macromolecular substances that algae itself contains, solves fertilizer raw material waste greatly, at
This height, can not achieve that crop is quick-acting to nutrient, long-acting the problem of needing.Meanwhile the ingredient of seaweed itself has obtained comprehensive recycling
It utilizes, economizes on resources, prevent the pollution of the environment, and achieved the purpose that energy saving.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
Itself a kind of sustained release salt affected soil improvement alga fertilizer preparation method, includes the following steps：
(1) pretreatment of raw material：Take seaweed raw material (including industrial residual seaweed slag, seaweed leftover bits and pieces, seaweed etc.)
It is soaked in water, cleans for several times；
(2) pretreated seaweed raw material adjusts water content 40~50%, and addition second acid for adjusting pH is 4-7, by enzyme/algae matter
2-5% cellulases, 1% pectase, 2~3% non-starch polysaccharide enzymes, 1-2% papains, 1-2% is added in the amount for measuring ratio
25~45 DEG C of utilization plural serial stage enzymolysis 10 of glusulase and temperature control~for 24 hours, after enzymolysis, centrifugation；
(3) the supernatant extruding after centrifugation is added dropwise to and is mixed equipped with calcium chloride (3%, w/v) and potassium chloride (3%, w/v)
In the reaction kettle of solution, stirring, which forms gel-type vehicle under the action of ionomer, by the gel-type vehicle in salt
After being kept for 30 minutes in solution, it is spare to obtain modified seaweed gel complex liquid；
(4) drying of solid content extrusion dehydration, the crushing that step (2) obtains are taken；By crushed material, chemical fertilizer, biofermentation
Agent is mixed evenly, and is put into and rolls on granulating disc, the particle of manufacture grain size 2-3mm；
(5) above-mentioned particle is placed in disk, is placed in coating machine and is preheated to 50-70 DEG C, turned under the action of atomized liquid
Modified seaweed gel complex liquid is atomized in spraying device and is sprayed on particle surface, then passes through 50-60 DEG C by dynamic disk
The particle of coating is obtained after air-drying dry 15-20 minutes；Modified seaweed gel complex liquid atomizing pressure is 0.3-0.6Mpa, atomization speed
Degree is 10-15ml/min.To obtain itself sustained release alga fertilizer particle, and the drying in 40 DEG C of baking ovens.
Preferably, in step (2), the plural serial stage enzymolysis is specially：
The rank of plural serial stage enzymolysis is set as 4-6 grade, the temperature range of each rank enzymolysis control 25~45 DEG C it
Between, pH is controlled between 4-7, and other temperature gradually rises from first level to next stage, and pH value then continuously decreases.
It should be noted that place be that the rank of plural serial stage enzymolysis is set as 4-6 grade, then connects between every grade, tool
The temperature of each rank of body and pH selections are the suitable ranges obtained through a large number of experiments, and first level is to next stage
Other temperature is set according to the trend gradually risen, and pH value is in then the trend continuously decreased, to ensure enzymolysis product
Quality.
Preferably, the specific preparation method of bio-fermentation agent in step (4) is：Take 8~10 parts of adsorbents, 5~20 parts of agricultures
Byproduct leftover bits and pieces, 5~20 parts of excrement, 1~2 part of Pond Silt, 1~2 part of humic acid, 1~2 part of trace element mixture, 1~
2 parts of composite bacteria agents are mixed evenly；Then moisture is adjusted to anaerobic fermentation at 35~40%, 25 DEG C~30 DEG C with aqueous solution
7~10d；
Adsorbent described above is one or more of zeolite, activated carbon, bentonite, vermiculite.
Above-mentioned agricultural and sideline product leftover bits and pieces is one kind or several in straw, wheat stalk, maize straw, green grass, bagasse, vinasse
Kind, it is for use after crushing.
Above-mentioned excrement is one or more of human excrement, pig manure, cow dung, chicken manure, duck excrement；
Above-mentioned trace element mixture includes ferrous sulfate, zinc sulfate, copper sulphate, manganese sulfate, borax, ammonium molybdate and sulfuric acid
One or more of magnesium, it is preferred that the ferrous sulfate, zinc sulfate, copper sulphate, manganese sulfate, borax, ammonium molybdate and sulfuric acid
The weight part ratio of magnesium is 1：0.8-1.5：0.5-1.0：0.4-0.8：0.2-0.5：0.3-0.4：0.1-0.4.
Above-mentioned composite bacteria agent is made of actinomyces, nitrogen-fixing bacteria, bacillus subtilis, saccharomycete and trichoderma reesei；Preferably,
Contain actinomyces 0.6-1.0 × 10 in every milliliter of fermenting agent5Cfu/g, nitrogen-fixing bacteria 1-1.5 × 105Cfu/g, withered grass gemma
Bacillus 0.8-1.2 × 105Cfu/g, saccharomycete 1.5-2 × 105Cfu/g, trichoderma reesei 1.5-3.0 × 105cfu/g。
Preferably, extrusion dehydration drying, the crushing described in step (4) specifically refer to：Solid content extrusion dehydration is beaten
Packet equipment carries out extrusion dehydration, sloughs the free water of 20-30% or so, is down to 60-70% containing water content, volume-diminished is original
1/4~1/5；Extrudate is crushed with cutter, further discharges free water therein, then carries out secondary extrusion dehydration,
So that water content is down to 50%, carry out pneumatic conveying drying dehydration using hot wind at this time, water content is made to be down to 10% hereinafter, using whirlwind point
It removes sand impurity elimination from device；It finally enters pulverizer to crush, sieves to obtain the unified seaweed solid impurity particle of grain size after 60 mesh.
Preferably, the chemical fertilizer described in step (4)：Including humic acid, agricultural selenium fertilizer, urea, potassium dihydrogen phosphate, carbon
One or more compoundings of sour hydrogen ammonium, potassium sulfate, potassium chloride, it is preferred that the content of each component is：Humic acid 5-15%, it is agricultural
Selenium fertilizer 5-15%, urea 5-15%, potassium dihydrogen phosphate 5-15%, ammonium hydrogen carbonate 5-15%, potassium sulfate 5-15%, potassium chloride 5-
15%.
Preferably, the crushed material described in step (4), chemical fertilizer, bio-fermentation agent ratio be 5-10:3-5:1-3,
Preferably 5:3:2.
Compared with prior art, the beneficial effects of the invention are as follows：
After product of the present invention carries out the sustained release component and enzymolysis of cross-linked structure with the polysaccharide of seaweed itself and macromolecular substances
The insoluble matter absorbed convenient for crop mixes coating, is formed by itself sustained release alga fertilizer and plant resistance and root system battalion can be improved
It supports and absorbs, be remarkably improved chemical fertilizer utilization rate, mitigate environmental pollution；Chemical fertilizer, Pesticide use amount and fertilizer application frequency can be reduced,
Labor of fertilizer application intensity is reduced, labour is saved, can also promote the soil fertility level of fertilized soil.Meanwhile itself sustained release alga fertilizer is in soil
Water-absorbing-retaining experiment in earth shows that the specific retention and water retention of soil, reduction moisture can be increased using itself sustained release alga fertilizer
Evaporation, extend the watering period of soil, improve the utilization rate of moisture, while can keep soil from packing together.
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 of commercially available acquisition can be passed through.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Embodiment 1 prepares itself sustained release salt affected soil improvement alga fertilizer
Specially include the following steps：
(1) pretreatment of raw material：100 kilograms of seaweed are taken to be soaked in water, clean for several times；
(2) pretreated seaweed raw material adjusts water content 40~50%, and addition second acid for adjusting pH is 4-7, by enzyme/algae matter
The amount of amount ratio is added 3% cellulase, 1% pectase, 2% non-starch polysaccharide enzyme, 1% papain, 1% glusulase and controls
25~45 DEG C of temperature is using plural serial stage enzymolysis 10~for 24 hours, and the rank of plural serial stage enzymolysis is set as 6 grades, each rank enzymolysis
Temperature range controls between 25~45 DEG C, and pH is controlled between 4-7, and other temperature gradually rises from first level to next stage
Height, and pH value then continuously decreases.After enzymolysis, centrifugation；
(3) the supernatant extruding after centrifugation is added dropwise to and is mixed equipped with calcium chloride (3%, w/v) and potassium chloride (3%, w/v)
In the reaction kettle of solution, stirring, which forms gel-type vehicle under the action of ionomer, by the gel-type vehicle in salt
After being kept for 30 minutes in solution, it is spare to obtain modified seaweed gel complex liquid；
(4) it takes the solid content that step (2) obtains to carry out extrusion dehydration with extrusion dehydration baling equipment, sloughs the left sides 20-30%
Right free water is down to 60-70% containing water content, and volume-diminished is 1/4~1/5 originally；Extrudate is crushed with cutter,
Free water therein is further discharged, secondary extrusion dehydration is then carried out, water content is made to be down to 50%, is carried out at this time using hot wind
Pneumatic conveying drying is dehydrated, and water content is made to be down to 10% hereinafter, removing sand impurity elimination using cyclone separator；It finally enters pulverizer and carries out powder
It is broken, it sieves to obtain the unified seaweed solid impurity particle of grain size after 60 mesh.
(5) bio-fermentation agent is prepared, the maize straw after 10 parts of activated carbons, 20 parts of crushing, 5 excrement, 1 part of pond is taken to become silted up
Mud, 1 part of humic acid, 1~2 part of trace element mixture (ferrous sulfate, zinc sulfate, copper sulphate, manganese sulfate, borax, ammonium molybdate and
Magnesium sulfate, weight part ratio 1：1：1：0.5：0.5：0.3：0.1), 1~2 part of composite bacteria agent (every milliliter of fermenting agent
In contain actinomyces 0.6 × 105Cfu/g, nitrogen-fixing bacteria 1 × 105Cfu/g, bacillus subtilis 0.8 × 105Cfu/g, saccharomycete
1.5×105Cfu/g, trichoderma reesei 1.5 × 105Cfu/g it) is mixed evenly；Then moisture is adjusted to 35 with aqueous solution~
40%, 7~10d of anaerobic fermentation at 25 DEG C~30 DEG C；
(6) by crushed material 50%, chemical fertilizer (humic acid 5-15%, agricultural selenium fertilizer 5-15%, urea 5-15%, phosphoric acid
Potassium dihydrogen 5-15%, ammonium hydrogen carbonate 5-15%, potassium sulfate 5-15%, potassium chloride 5-15%) 30%, crush after bio-fermentation agent
20%, it is mixed evenly, is put into and rolls on granulating disc, the particle of manufacture grain size 2-3mm；
(6) above-mentioned particle is placed in disk, is placed in coating machine and is preheated to 50-70 DEG C, turned under the action of atomized liquid
Modified seaweed gel complex liquid is atomized in spraying device and is sprayed on particle surface, then passes through 50-60 DEG C by dynamic disk
The particle of coating is obtained after air-drying dry 15-20 minutes；Modified seaweed gel complex liquid atomizing pressure is 0.3-0.6Mpa, atomization speed
Degree is 10-15ml/min.To obtain itself sustained release alga fertilizer particle, and the drying in 40 DEG C of baking ovens.
Embodiment 2 itself is sustained the verification of alga fertilizer Water-saving effect
Embodiment 1 itself sustained release salt affected soil improvement alga fertilizer is taken, its influence to soil water-retaining rate is measured.It is not added with
The soil of fertiliser granulates, water retention are about 35%, after drying 12 days under natural conditions, almost lose all moisture；And divide
Not Tian Jia 3%, 5% and 10% fertiliser granulates soil, water retention is respectively 55%, 78% and 93%, is done under natural conditions
After dry 12 days, water retention is still 42%, 57 and 77%.It can be seen that itself sustained release alga fertilizer not only has after soil is added
There is good water absorbing capacity, while also there is preferable water holding capacity.This characteristic of fertiliser granulates is mainly attributed to its seaweed
Itself trehalose in fertilizer and its macromolecules cross-linking object, it can absorb a large amount of moisture of storage, and with the reduction of soil moisture
And stored moisture is slowly released, so that it is fully absorbed by crop, while slowing down the evaporation of soil moisture, effectively improves
The utilization rate of water resource.Therefore, the prepared fertiliser granulates of this experiment have preferably in the big area of arid, water shortage or daily evaporation amount
Application prospect.
Embodiment 3 itself is sustained the verification of alga fertilizer growth-promoting effect
The soil-repairing agent prepared using the method for embodiment 1 is used for the plantation of capsicum, eggplant, wax gourd, with common life
Organic fertilizer is control group, is tested, in addition to the organic fertilizer used is different, other implantation methods and planting conditions all same,
Its rate of growth is counted respectively.The results are shown in Table 1.
Soil-repairing agent and farm manure field fertilizer efficiency comparison result prepared by the method that table 1 uses embodiment 3
By table 1 as it can be seen that test result shows soil-repairing agent that the method for the present invention obtains in works such as capsicum, eggplant, wax gourds
It is all widely used in object, and crop yield can be made to increase production 16.9-34.4% or more (table 1).Compared with farm manure, this hair
The fertilizer efficiency for the bio-organic fertilizer that bright method obtains is high, good biocompatibility.
Embodiment 4 itself is sustained the verification of alga fertilizer Effect of improving soil
For the soil progress data tracking of itself sustained release alga fertilizer prepared by applied embodiment 1 in embodiment 3, crop rotation
After repairing 1 year, plantation field soil is detected, the results are shown in Table 2：
The application of table 2 itself sustained release alga fertilizer carries out the soil root system after repairing 1 year
As can be seen from Table 2, the soil-repairing agent prepared using the present invention was obviously improved growing area soil after 1 year,
27-38% is improved in soil aeration gap, and soil aggregate structure improves 41-52%, and soil total phosphorus content improves 37-40%, soil
Total nitrogen content improves 36-40%.
The above description is merely a specific embodiment, it is not limited to this, any skill for being familiar with the art
Art personnel in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover the protection model in the present invention
Within enclosing.
Claims (7)
1. a kind of preparation method of itself sustained release alga fertilizer for capableing of repair saline-land, includes the following steps：
(1) pretreatment of raw material：
(2) enzymolysis centrifugation；
(3) prepared by modified seaweed gel complex liquid；
(4) it is granulated；
(5) coating.
2. preparation method as described in claim 1, specially：
(1) pretreatment of raw material：Seaweed raw material (including industrial residual seaweed slag, seaweed leftover bits and pieces, seaweed etc.) is taken to use water
It impregnates, clean for several times；
(2) pretreated seaweed raw material adjusts water content 40~50%, and addition second acid for adjusting pH is 4-7, by enzyme/algae mass ratio
Amount 2-5% cellulases, 1% pectase, 2~3% non-starch polysaccharide enzymes, 1-2% papains, 1-2% snails is added
25~45 DEG C of utilization plural serial stage enzymolysis 10 of enzyme and temperature control~for 24 hours, after enzymolysis, centrifugation；
(3) the supernatant extruding after centrifugation is added dropwise to equipped with calcium chloride (3%, w/v) and potassium chloride (3%, w/v) mixed solution
Reaction kettle in, stirring, which forms gel-type vehicle under the action of ionomer, by the gel-type vehicle in salting liquid
After middle holding 30 minutes, it is spare to obtain modified seaweed gel complex liquid；
(4) drying of solid content extrusion dehydration, the crushing that step (2) obtains are taken；By crushed material, chemical fertilizer, bio-fermentation agent, mix
Conjunction stirs evenly, and is put into and rolls on granulating disc, the particle of manufacture grain size 2-3mm；
(5) above-mentioned particle is placed in disk, is placed in coating machine and is preheated to 50-70 DEG C, circle is rotated under the action of atomized liquid
Disk, particle surface is atomized in spraying device and is sprayed on by modified seaweed gel complex liquid, is then passed through 50-60 DEG C and is air-dried
The particle of coating is obtained after 15-20 minutes dry；Modified seaweed gel complex liquid atomizing pressure is 0.3-0.6Mpa, and atomization speed is
10-15ml/min.To obtain itself sustained release alga fertilizer particle, and the drying in 40 DEG C of baking ovens.
3. preparation method as described in claim 1, in step (2), the plural serial stage enzymolysis is specially：Plural serial stage enzyme
The rank of solution is set as 4-6 grades, and the temperature range of each rank enzymolysis controls between 25~45 DEG C, and pH is controlled between 4-7,
And other temperature gradually rises from first level to next stage, and pH value then continuously decreases.
4. itself a kind of sustained release salt affected soil as described in claim 1 improves alga fertilizer preparation method, described in step (4)
Extrusion dehydration is dry, crushing specifically refers to：Solid content is subjected to extrusion dehydration with extrusion dehydration baling equipment, sloughs 20-30%
The free water of left and right is down to 60-70% containing water content, and volume-diminished is 1/4~1/5 originally；Extrudate is broken with cutter
It is broken, free water therein is further discharged, secondary extrusion dehydration is then carried out, water content is made to be down to 50%, utilizes hot wind at this time
Pneumatic conveying drying dehydration is carried out, water content is made to be down to 10% hereinafter, removing sand impurity elimination using cyclone separator；Finally enter pulverizer into
Row crushes, and sieves to obtain the unified seaweed solid impurity particle of grain size after 60 mesh.
5. preparation method as described in claim 1, the chemical fertilizer described in step (4)：Including humic acid, agricultural selenium fertilizer,
One or more compoundings of urea, potassium dihydrogen phosphate, ammonium hydrogen carbonate, potassium sulfate, potassium chloride, it is preferred that the content of each component is：
Humic acid 5-15%, agricultural selenium fertilizer 5-15%, urea 5-15%, potassium dihydrogen phosphate 5-15%, ammonium hydrogen carbonate 5-15%, potassium sulfate
5-15%, potassium chloride 5-15%.
6. preparation method as described in claim 1, the specific preparation method of bio-fermentation agent in step (4) is：Take 8~10 parts
Adsorbent, 5~20 parts of agricultural and sideline product leftover bits and pieces, 5~20 excrement, 1~2 part of Pond Silt, 1~2 part of humic acid, 1~2 part micro
Element mixture, 1~2 part of composite bacteria agent are mixed evenly；Then with aqueous solution by moisture be adjusted to 35~40%, 25 DEG C~
7~10d of anaerobic fermentation at 30 DEG C；
Adsorbent described above is one or more of zeolite, activated carbon, bentonite, vermiculite.
Above-mentioned agricultural and sideline product leftover bits and pieces is one or more of straw, wheat stalk, maize straw, green grass, bagasse, vinasse,
It is for use after crushing.
Above-mentioned excrement is one or more of human excrement, pig manure, cow dung, chicken manure, duck excrement；
Above-mentioned trace element mixture includes in ferrous sulfate, zinc sulfate, copper sulphate, manganese sulfate, borax, ammonium molybdate and magnesium sulfate
One or more, it is preferred that the ferrous sulfate, zinc sulfate, copper sulphate, manganese sulfate, borax, ammonium molybdate and magnesium sulfate
Weight part ratio is 1：0.8-1.5：0.5-1.0：0.4-0.8：0.2-0.5：0.3-0.4：0.1-0.4.
Above-mentioned composite bacteria agent is made of actinomyces, nitrogen-fixing bacteria, bacillus subtilis, saccharomycete and trichoderma reesei；Preferably, per milli
It rises and contains actinomyces 0.6-1.0 × 10 in the fermenting agent5Cfu/g, nitrogen-fixing bacteria 1-1.5 × 105Cfu/g, bacillus subtilis
0.8-1.2×105Cfu/g, saccharomycete 1.5-2 × 105Cfu/g, trichoderma reesei 1.5-3.0 × 105cfu/g。
7. preparation method as described in claim 1, the ratio of crushed material, chemical fertilizer, bio-fermentation agent described in step (4)
Example is 5-10:3-5:1-3, preferably 5:3:2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810897267.3A CN108610190A (en) | 2018-08-08 | 2018-08-08 | A kind of itself sustained release alga fertilizer preparation method for capableing of repair saline-land |
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| CN201810897267.3A CN108610190A (en) | 2018-08-08 | 2018-08-08 | A kind of itself sustained release alga fertilizer preparation method for capableing of repair saline-land |
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| CN109020708A (en) * | 2018-09-18 | 2018-12-18 | 中国农业科学院农业环境与可持续发展研究所 | Itself a kind of sustained release alga fertilizer preparation method |
| CN109429993A (en) * | 2018-11-06 | 2019-03-08 | 国家海洋局第三海洋研究所 | A kind of cultivation matrix of the algae-residue containing asparagus and preparation method thereof |
| CN109734528A (en) * | 2019-03-25 | 2019-05-10 | 广西中连智浩科技有限公司 | A kind of preparation method of novel alga slow release fertilizer |
| CN110423180A (en) * | 2019-09-10 | 2019-11-08 | 山东胜伟盐碱地科技有限公司 | A kind of slow-release compound fertilizer and preparation method thereof for alkaline land improving |
| CN113773150A (en) * | 2021-10-11 | 2021-12-10 | 山东宝源生物科技股份有限公司 | Biological functional fertilizer with core-shell isolation coated structure and preparation method thereof |
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Application publication date: 20181002 |