CN106747958A - A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer and preparation method thereof - Google Patents
A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer and preparation method thereof Download PDFInfo
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- CN106747958A CN106747958A CN201611056055.XA CN201611056055A CN106747958A CN 106747958 A CN106747958 A CN 106747958A CN 201611056055 A CN201611056055 A CN 201611056055A CN 106747958 A CN106747958 A CN 106747958A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- 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
Abstract
The present invention relates to field of agricultural cultivation, a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer and preparation method thereof is disclosed.Composite fertilizer includes release layer, slow release layer and coating layer；Release layer is made up of microorganism fertilizer, inorganic fertilizer, chemical enhancement agent, plural gel carrier, modified oxidized calcium, adhesive；Slow release layer is made up of microorganism fertilizer, inorganic fertilizer, chemical enhancement agent, cyclodextrin, adhesive；Coating layer is shitosan starch gelatin cross linking membrane.Microorganism and inorganic fertilizer composition are contained in nursery stock antimicrobial inorganic oxygenation composite fertilizer of the invention, and microbial activity, survival rate are high；The present invention has slow release effect simultaneously, can continue, stably Releasing nutrient and oxygen, the long-term growth for promoting plant, it is adaptable to stock growing.The preparation method of nursery stock antimicrobial inorganic oxygenation composite fertilizer of the present invention is simple, reasonable, and microorganism, inorganic fertilizer loss amount are few in preparation process；The nursery stock antimicrobial inorganic oxygenation composite fertilizer stay in grade of preparation, is suitable to large-scale production.
Description
Technical field
The present invention relates to field of agricultural cultivation, more particularly to a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer and its preparation
Method.
Background technology
In existing fertilizer, it is the inorganic fertilizer being combined with microorganism to have many, after soil applies inorganic fertilizer for a long time, soil
Earth occurs the degradation phenomenas such as hardened, salination, causes fertility to decline.And microorganism can improve soil texture, by soil
Organic matter decomposition be humus, and the Nutrient Transformation that plant in soil is not directly absorbed is absorbable nutrient so that
Promote plant growth.
Chinese invention patent such as Application No. CN201610338752.8 discloses a kind of micro- life of high concentration inorganic compounding
Thing fertilizer, the high concentration inorganic compounding microbial manure by urea, MAP, potassium chloride, humic acid, EDTA chelated zincs,
EDTA Chelated Manganeses, ammonium molybdate, borax, anti hardening agent, bacillus category microbial inoculum are prepared from.The invention high concentration inorganic compounding is micro-
Bio-feritlizer gives full play to the direct quick feature of inorganic chemical fertilizer, and by microbial bacterial agent improve utilization rate of fertilizer and
Improvement optimization soil.
But above-mentioned fertilizer there is also an obvious defect：In inorganic fertilizer composition, there is part chemical substance to micro- life
Thing has certain inhibitory action.Above-mentioned fertilizer is that inorganic fertilizer simply mixes with microorganism.One side inorganic fertilizer
The survival of microorganism can be adversely affected；On the other hand, in fertilizer preparation process, can cause it is a large amount of it is microorganism deactivated very
To dead, the fertilizer efficiency of fertilizer has been had a strong impact on.
Also, above-mentioned fertilizer does not have slow release effect, fertilizer efficiency is not lasting enough.
The content of the invention
It is an object of the invention to provide a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer.Nursery stock microorganism of the invention without
Microorganism and inorganic fertilizer composition are contained in machine oxygenation composite fertilizer, and microbial activity, survival rate are high；The present invention has sustained release simultaneously
Effect, can continue, stably Releasing nutrient and oxygen, the long-term growth for promoting plant, it is adaptable to stock growing.
Another object of the present invention is to provide a kind of preparation method of nursery stock antimicrobial inorganic oxygenation composite fertilizer.The present invention
The preparation method of nursery stock antimicrobial inorganic oxygenation composite fertilizer is simple, reasonable, and microorganism, inorganic fertilizer loss amount are few in preparation process；
The nursery stock antimicrobial inorganic oxygenation composite fertilizer stay in grade of preparation, is suitable to large-scale production.
Concrete technical scheme of the invention is：A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer, includes successively from the inside to the outside
Release layer, slow release layer and coating layer；The release layer is by following material composition：Microorganism fertilizer 10-20wt%, inorganic fertilizer 30-
34wt%, chemical enhancement agent 2-3wt%, plural gel carrier 40-50wt%, modified oxidized calcium 3-5wt%, adhesive surplus；
The slow release layer is by following material composition：Microorganism fertilizer 10-20wt%, inorganic fertilizer 30-34wt%, chemical enhancement agent 2-3wt%,
Cyclodextrin 44-54wt%, adhesive surplus；The coating layer is shitosan-starch-gelatin cross linking membrane.
Main fertilizer efficiency composition in fertilizer of the invention is microorganism fertilizer and inorganic fertilizer.Inorganic fertilizer can be supported for crop provides
Point, and microorganism can improve soil texture, be humus by the organic matter decomposition in soil, and can not by plant in soil
The Nutrient Transformation for directly absorbing is absorbable nutrient, promotes plant growth.Also contain oxygenation agent, Neng Gouchi in fertilizer of the invention
It is continuous stably to discharge oxygen, accelerate root respiration, promote root growth.
On the other hand, the fertilizer type with slow-release function is various in the market, usually has in fertiliser granulates surface
There is a coating layer, so as to have slow release effect.But, most slow release fertilizer slow release effect is not ideal enough, particularly in soil
Easily cause that early stage is prominent to be released after being absorbed water in earth, fertilizer component is discharged by rapid dissolving, causes fertilizer efficiency persistence degradation.And position
In the fertilizer component of granulated fertilizer core part, the speed for but entering fertilizer core due to moisture penetration is slower, and fertilizer into
Dividing needs to penetrate through the part of fertilizer outer layer, and fertilizer component release is short of power, and causes the fertilizer efficiency in later stage to be much worse than early stage.
Fertilizer of the invention has three-decker.Wherein, coating layer be shitosan-starch-gelatin cross linking membrane, shitosan-
Starch-gelatin cross linking membrane itself is poisoned, good film-forming property, and surface is smooth after film forming.Moisture in soil can be entered in fertilizer
Portion and fertilizer inner material carry out a certain degree of obstruct in infiltrating into soil, play slow releasing function, and the carrier of slow release layer is
Cyclodextrin.Cyclodextrin inner has hydrophobic cavity, can play certain retarding action to the infiltration of moisture.Coating layer and ring
The cooperation of dextrin, after fertilising, moisture penetration enters inside fertilizer, and simultaneously slow mechanism dissolved is diffused into outside coating layer for fertilizer water swelling,
Continuously Releasing nutrient, oxygenation agent, so as to reduce the loss of nutrient, oxygenation agent, play slow releasing function.Due to both match somebody with somebody
Close so that nutrient and oxygenation agent will not be released rapidly after early stage meets water, and sustained release rate is more stable, and sustained release persistence is more
By force.The carrier of release layer is plural gel carrier, and plural gel carrier has been also loaded modified oxidized calcium.Modified oxidized calcium is met
Exothermic reaction can occur, these heats can accelerate the dissolving of nutrient, oxygenation agent in water after water, so as to be nutrient, oxygenation agent
Release provides power, the defect for overcoming later stage nutrient, oxygenation agent releasing effect poor.
Preferably, the preparation method of the microorganism fertilizer is：Microorganism is configured to microbial solution, after then calcining
Oyster shell whiting or bentonite impregnated in microbial solution in adsorbed, saturation absorption after centrifugation, obtain being adsorbed with micro- life
The oyster shell whiting or bentonite of thing, decomposition is uniform in being added to the 8-12wt% sodium alginate solns of its 10-30 times of quality；So
Calcium chloride solution is added dropwise afterwards carries out cladding crosslinking curing, after eventually passing suction filtration, vacuum drying, crushing, microorganism fertilizer is obtained.
The present invention is in oyster shell whiting or bentonite and anti-with calcium chloride crosslinking by sodium alginate again by load of microorganisms
Cladding should be formed, load stability is further improved.Can be isolated with inorganic fertilizer and other compositions, it is to avoid part nothing
Machine suppression of the fertilizer to microorganism, in preparation process and after fertilising, microorganism has obtained immobilization, influence of the environment to it compared with
It is small, therefore, it is possible to keep high activity and high viability.
Preferably, the microorganism includes humic bacterium, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria.Humic bacterium can be by soil
Organic matter decomposition is humus；Nitrogen-fixing bacteria can be fixed the nitrogen in soil air；Phosphate solubilizing bacteria and potassium solubilizing bacteria decibel can be by soil
Phosphorus, K released in earth are out.
Preferably, the inorganic fertilizer is by following material composition：Nitrogenous fertilizer 50-54wt%, phosphate fertilizer 20-22wt%, potash fertilizer 24-
28wt%, trace element fertilizer surplus.It is directed to the nursery stock in fast growing period its root, shoot growth especially quick, more section
Have adjusted the proportioning of N, P, K with learning, because phosphorus can promote cell division, accelerate crop root growth, therefore properly increased P
Content.Trace element fertilizer can supplement the trace element beyond N, P, K.
Preferably, the nitrogenous fertilizer be selected from ammonium nitrate, ammonium sulfate nitrate, ammonium hydrogen carbonate, urea, ammonium sulfate, ammonium chloride in extremely
Few one kind；The phosphate fertilizer is selected from least one in calcium phosphate, calcium superphosphate, MAP, Diammonium phosphate (DAP)；The potash fertilizer is selected from
At least one in potassium chloride, potassium sulfate, potassium nitrate；The trace element fertilizer is selected from copper sulphate, magnesium sulfate, molybdenum trisulfate, sulfuric acid
At least one in manganese, zinc sulfate, ferrous sulfate, ferric nitrate, boric acid and calcium silicates.
Preferably, the mass ratio of the release layer, slow release layer and coating layer is 1:3-5:0.4-0.6.
Preferably, the chemical enhancement agent is at least one in calper calcium peroxide, urea peroxide and SODIUM PERCARBONATE；It is described viscous
Mixture is PVP.Due to the present invention, inorganic fertilizer, oxygenation agent should not meet water in preparation process, and PVP is dissolved in ethanol, because
This is more suitable selection as adhesive.
Preferably, the cyclodextrin is alpha-cyclodextrin, beta-schardinger dextrin or gamma-cyclodextrin.
Preferably, the preparation method of the plural gel carrier is：Take marine alga chopping and put into 50-100 times of quality
Water in, heat 20-30min at 95-105 DEG C；The concentration that marine alga is transferred to its 5-15 times of quality after filtering is 3-5wt%
Sodium pyrophosphate solution in, soak 0.5-1.5h at 50-60 DEG C, obtain viscous liquid；Viscous liquid is concentrated into solid
Content is 45-55wt%, to the polyvinyl alcohol that its 0.5-1 times of quality is added in viscous liquid and is stirred；Then in 40-
It is incubated at 50 DEG C, the sodium acid carbonate of adding liquid gross mass 1-3%, stirring reaction 10-20min adjusts liquid pH value after reaction
To neutral, plural gel carrier is finally dried to obtain.
Plural gel carrier of the invention, can be obtained, mainly with marine algae extract and polyvinyl alcohol using the above method
It is main carriers.Seaweed extracted liquor after polyvinyl alcohol, adds sodium acid carbonate in thick, sodium acid carbonate just with sea
Acidic materials in algae extract solution react, and generate carbon dioxide, and gas is obtained substantial amounts of pore in coagulant liquid
Road, can not only improve the load capacity of carrier, and carry to be discharged into soil after microorganism fertilizer, inorganic fertilizer, oxygenation agent dissolving
Express passway has been supplied, the resistance of infiltration has been reduced.And plural gel carrier has very strong hygroscopicity, be can speed up in the later stage
Microorganism fertilizer, inorganic fertilizer, the rate of dissolution of oxygenation agent, the defect for further overcoming later stage nutrient, oxygenation agent releasing effect poor.
Preferably, the preparation method of the modified oxidized calcium is：By calcium oxide and potassium hydroxide in mass ratio 100:0.1-
0.2 is well mixed added in reaction vessel, by quality for the oxirane of calcium oxide 4-8wt% it is pressurized liquefied after be passed through reaction
In container, reaction vessel is heated to 140-160 DEG C, stirring reaction 2-3h under inert gas pressurization protection；After reaction terminates
Room temperature is cooled to, modified oxidized calcium is obtained.
In the preparation process of modified oxidized calcium, using potassium hydroxide and calcium oxide as common catalyst, make epoxy second
Alkane is polymerized on calcium oxide surface, generation PEO layer, and the effect of PEO layer is：Because calcium oxide meets water
Reaction more acutely, may result in temperature too high and cause potential safety hazard.After PEO is coated on calcium oxide surface,
Because PEO has preferable water imbibition, moisture needs slowly penetrate into calcium oxide table after first passing through its absorption
Face, serves cushioning effect.
A kind of preparation method of nursery stock antimicrobial inorganic oxygenation composite fertilizer, step is：
Step 1：Adhesive is dissolved with absolute ethyl alcohol；Simultaneously by inorganic fertilizer, chemical enhancement agent, plural gel carrier, change
Property calcium oxide mixing and stirring, then be well mixed with microorganism fertilizer, then use adhesive bonding；Sequentially passed through after bonding and made
Grain, dry and screening, are obtained release layer.
Step 2：Cyclodextrin is mixed with the water of its 0.4-0.8 times of quality, after stirring in the pasty state, addition inorganic fertilizer, chemistry
Oxygenation agent is simultaneously uniformly dispersed, then be well mixed with microorganism fertilizer, and then drying is not more than 3wt% to moisture content, obtains pastel；
Adhesive is dissolved with absolute ethyl alcohol, adhesive bonding is used after pastel is well mixed with release layer, sequentially passed through after bonding
Granulation, dry and screening, are obtained slow release layer.
Step 3：In mass ratio 1:0.5-1.5:0.5-1.5 weighs shitosan, starch, gelatin respectively, added in water simultaneously
Stirring 1-3h, is then heated to 60-80 DEG C until forming homogeneous solution；By homogeneous solution and the 1- of its 0.1-0.3 times of volume
The glutaraldehyde solution mixing of 3wt%, carries out coating to the obtained sustained release layer surface of step 2 immediately, is dried immediately after coating, is formed
Coating layer, is obtained nursery stock antimicrobial inorganic oxygenation composite fertilizer.
Preparation method of the present invention avoids the contact of microorganism fertilizer, inorganic fertilizer, oxygenation agent with water as far as possible in preparation process,
The turnover rate of active ingredient is reduced, while microorganism fertilizer is due to the protection for having carrier, the survival rate in preparation process is high；System
The fertilizer quality for obtaining is high, stable.
The beneficial effects of the invention are as follows：Microorganism and inorganic is contained in nursery stock antimicrobial inorganic oxygenation composite fertilizer of the invention
Fertile composition, and microbial activity, survival rate are high；Simultaneously the present invention have slow release effect, can continue, stably Releasing nutrient and
Oxygen, the growth of long-term promotion plant, it is adaptable to stock growing.The preparation side of nursery stock antimicrobial inorganic oxygenation composite fertilizer of the present invention
Method is simple, reasonable, and microorganism, inorganic fertilizer loss amount are few in preparation process；The nursery stock antimicrobial inorganic oxygenation composite fertilizer product of preparation
Matter stabilization, is suitable to large-scale production.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer, includes release layer, slow release layer and coating layer successively from the inside to the outside.
The release layer is by following material composition：Microorganism fertilizer 15wt%, inorganic fertilizer (nitrogenous fertilizer 53wt%, phosphate fertilizer 21wt%,
Potash fertilizer 26wt%, trace element fertilizer surplus) it is 32wt%, calper calcium peroxide 2.5wt%, plural gel carrier 45wt%, modified oxidized
Calcium 4wt%, PVP surplus.
The slow release layer is by following material composition：Microorganism fertilizer 15wt%, inorganic fertilizer (nitrogenous fertilizer 53wt%, phosphate fertilizer 21wt%,
Potash fertilizer 26wt%, trace element fertilizer surplus) 32wt%, calper calcium peroxide 2.5wt%, alpha-cyclodextrin 49wt%, PVP surplus.
The coating layer is shitosan-starch-gelatin cross linking membrane.
The microorganism includes humic bacterium, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria.
The nitrogenous fertilizer is selected from ammonium nitrate, ammonium hydrogen carbonate, urea；The phosphate fertilizer is calcium phosphate, Diammonium phosphate (DAP)；The potash fertilizer is
Potassium chloride, potassium sulfate；The trace element fertilizer is copper sulphate, magnesium sulfate, zinc sulfate, ferric nitrate, boric acid and calcium silicates.
The mass ratio of the release layer, slow release layer and coating layer is 1:4:0.5.
Embodiment 2
A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer, includes release layer, slow release layer and coating layer successively from the inside to the outside.
The release layer is by following material composition：Microorganism fertilizer 10wt%, inorganic fertilizer (nitrogenous fertilizer 50wt%, phosphate fertilizer 22wt%,
Potash fertilizer 27wt%, trace element fertilizer surplus) 34wt%, urea peroxide 2wt%, plural gel carrier 50wt%, modified oxidized calcium
3wt%, PVP surplus.
The slow release layer is by following material composition：Microorganism fertilizer 10wt%, inorganic fertilizer (nitrogenous fertilizer 50wt%, phosphate fertilizer
22.8wt%, potash fertilizer 27wt%, trace element fertilizer surplus) 34wt%, urea peroxide 2wt%, beta-schardinger dextrin 53wt%, PVP
Surplus.
The coating layer is shitosan-starch-gelatin cross linking membrane.
The microorganism includes humic bacterium, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria.
The nitrogenous fertilizer is ammonium sulfate nitrate, ammonium hydrogen carbonate, urea, ammonium chloride；The phosphate fertilizer is calcium superphosphate, Diammonium phosphate (DAP)；
The potash fertilizer is potassium sulfate, potassium nitrate；The trace element fertilizer is copper sulphate, magnesium sulfate, molybdenum trisulfate, manganese sulfate, zinc sulfate, sulphur
It is sour ferrous.
The mass ratio of the release layer, slow release layer and coating layer is 1:3:0.4.
Embodiment 3
A kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer, includes release layer, slow release layer and coating layer successively from the inside to the outside.
The release layer is by following material composition：Microorganism fertilizer 20wt%, inorganic fertilizer (nitrogenous fertilizer 54wt%, phosphate fertilizer 20wt%,
Potash fertilizer 25.8wt%, trace element fertilizer surplus) it is 30wt%, SODIUM PERCARBONATE 3wt%, plural gel carrier 40wt%, modified oxidized
Calcium 5wt%, PVP surplus.
The slow release layer is by following material composition：Microorganism fertilizer 20wt%, inorganic fertilizer (nitrogenous fertilizer 54wt%, phosphate fertilizer 20wt%,
Potash fertilizer 25.8wt%, trace element fertilizer surplus) 30wt%, SODIUM PERCARBONATE 3wt%, gamma-cyclodextrin 44wt%, PVP surplus.
The coating layer is shitosan-starch-gelatin cross linking membrane.
The microorganism includes humic bacterium, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria.
The nitrogenous fertilizer is ammonium hydrogen carbonate, urea, ammonium sulfate, ammonium chloride；The phosphate fertilizer is calcium phosphate, MAP, phosphoric acid
Two ammoniums；The potash fertilizer is potassium chloride, potassium nitrate；The trace element fertilizer is copper sulphate, magnesium sulfate, molybdenum trisulfate, manganese sulfate, sulfuric acid
Zinc, ferrous sulfate, ferric nitrate, boric acid and calcium silicates.
The mass ratio of the release layer, slow release layer and coating layer is 1:5:0.6.
Embodiment 4
The preparation method of the nursery stock antimicrobial inorganic oxygenation composite fertilizer of embodiment 1 is：
It is prefabricated standby：
The preparation method of the microorganism fertilizer is：Microorganism is configured to microbial solution, then by the shell after calcining
Powder or bentonite are adsorbed in impregnated in microbial solution, centrifugation after saturation absorption, obtain being adsorbed with the shellfish of microorganism
Shell powder or bentonite, decomposition is uniform in being added to the 10wt% sodium alginate solns of its 20 times of quality；Then chlorination is added dropwise
Calcium solution carries out cladding crosslinking curing, after eventually passing suction filtration, vacuum drying, crushing, microorganism fertilizer is obtained.
The preparation method of the plural gel carrier is：In taking marine alga chopping and being put into 75 times of water of quality, 100
25min is heated at DEG C；Marine alga is transferred in the sodium pyrophosphate solution that its 10 times of concentration of quality are 4wt% after filtering, 55
1h is soaked at DEG C, viscous liquid is obtained；Viscous liquid is concentrated into solid content for 50wt%, is added in viscous liquid
Its 0.75 times of polyvinyl alcohol of quality simultaneously stirs；Then it is incubated at 45 DEG C, the bicarbonate of adding liquid gross mass 2%
Sodium, stirring reaction 15min adjusts liquid pH value to neutrality after reaction, be finally dried to obtain plural gel carrier.
The preparation method of the modified oxidized calcium is：By calcium oxide and potassium hydroxide in mass ratio 100:0.15 added to instead
Answer in container and be well mixed, by quality for the oxirane of calcium oxide 6wt% it is pressurized liquefied after be passed through in reaction vessel, in inertia
Reaction vessel is heated to 150 DEG C, stirring reaction 2.5h under gas pressurized protection；Reaction is cooled to room temperature after terminating, and is changed
Property calcium oxide.
Step 1：Adhesive is dissolved with absolute ethyl alcohol；Simultaneously by nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, chemical enhancement
Agent, plural gel carrier, modified oxidized calcium mixing and stirring, then use adhesive bonding；Granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained release layer.
Step 2：Cyclodextrin is mixed with the water of its 0.6 times of quality, stirring in the pasty state after, addition nitrogenous fertilizer, phosphate fertilizer, potash fertilizer,
Trace element fertilizer, chemical enhancement agent are simultaneously uniformly dispersed, and then drying is not more than 3wt% to moisture content, obtains pastel；With anhydrous
Ethanol dissolves adhesive, and adhesive bonding is used after pastel is well mixed with release layer, granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained slow release layer.
Step 3：Alcohol-soluble macromolecule resin is dissolved with ethanol, by alcohol-soluble macromolecule resin coating to being sustained layer surface,
Coating layer is formed after drying, nursery stock antimicrobial inorganic oxygenation composite fertilizer is obtained.
Embodiment 5
The preparation method of the nursery stock antimicrobial inorganic oxygenation composite fertilizer of embodiment 2 is：
It is prefabricated standby：
The preparation method of the microorganism fertilizer is：Microorganism is configured to microbial solution, then by the shell after calcining
Powder or bentonite are adsorbed in impregnated in microbial solution, centrifugation after saturation absorption, obtain being adsorbed with the shellfish of microorganism
Shell powder or bentonite, decomposition is uniform in being added to the 12wt% sodium alginate solns of its 10 times of quality；Then chlorination is added dropwise
Calcium solution carries out cladding crosslinking curing, after eventually passing suction filtration, vacuum drying, crushing, microorganism fertilizer is obtained.
The preparation method of the plural gel carrier is：In taking marine alga chopping and being put into 50 times of water of quality, 95
30min is heated at DEG C；Marine alga is transferred in the sodium pyrophosphate solution that the concentration of its 5-15 times of quality is 3wt% after filtering,
1.5h is soaked at 50 DEG C, viscous liquid is obtained；Viscous liquid is concentrated into solid content for 45wt%, in viscous liquid
Add its 0.5 times of polyvinyl alcohol of quality and stir；Then it is incubated at 40 DEG C, the carbonic acid of adding liquid gross mass 1%
Hydrogen sodium, stirring reaction 10min adjusts liquid pH value to neutrality after reaction, be finally dried to obtain plural gel carrier.
The preparation method of the modified oxidized calcium is：By calcium oxide and potassium hydroxide in mass ratio 100:0.1 added to instead
Answer in container and be well mixed, by quality for the oxirane of calcium oxide 4wt% it is pressurized liquefied after be passed through in reaction vessel, in inertia
Reaction vessel is heated to 1400 DEG C, stirring reaction 3h under gas pressurized protection；Reaction is cooled to room temperature after terminating, and is modified
Calcium oxide.
Step 1：Adhesive is dissolved with absolute ethyl alcohol；Simultaneously by nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, chemical enhancement
Agent, plural gel carrier, modified oxidized calcium mixing and stirring, then use adhesive bonding；Granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained release layer.
Step 2：Cyclodextrin is mixed with the water of its 0.4 times of quality, stirring in the pasty state after, addition nitrogenous fertilizer, phosphate fertilizer, potash fertilizer,
Trace element fertilizer, chemical enhancement agent are simultaneously uniformly dispersed, and then drying is not more than 3wt% to moisture content, obtains pastel；With anhydrous
Ethanol dissolves adhesive, and adhesive bonding is used after pastel is well mixed with release layer, granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained slow release layer.
Step 3：Alcohol-soluble macromolecule resin is dissolved with ethanol, by alcohol-soluble macromolecule resin coating to being sustained layer surface,
Coating layer is formed after drying, nursery stock antimicrobial inorganic oxygenation composite fertilizer is obtained.
Embodiment 6
The preparation method of the nursery stock antimicrobial inorganic oxygenation composite fertilizer of embodiment 3 is：
It is prefabricated standby：
The preparation method of the microorganism fertilizer is：Microorganism is configured to microbial solution, then by the shell after calcining
Powder or bentonite are adsorbed in impregnated in microbial solution, centrifugation after saturation absorption, obtain being adsorbed with the shellfish of microorganism
Shell powder or bentonite, decomposition is uniform in being added to the 8wt% sodium alginate solns of its 30 times of quality；Then calcium chloride is added dropwise
Solution carries out cladding crosslinking curing, after eventually passing suction filtration, vacuum drying, crushing, microorganism fertilizer is obtained.
The preparation method of the plural gel carrier is：In taking marine alga chopping and being put into 100 times of water of quality,
20min is heated at 105 DEG C；Marine alga is transferred in the sodium pyrophosphate solution that its 15 times of concentration of quality are 5wt% after filtering,
0.5h is soaked at 60 DEG C, viscous liquid is obtained；Viscous liquid is concentrated into solid content for 55wt%, in viscous liquid
Add its 1 times of polyvinyl alcohol of quality and stir；Then it is incubated at 50 DEG C, the bicarbonate of adding liquid gross mass 3%
Sodium, stirring reaction 20min adjusts liquid pH value to neutrality after reaction, be finally dried to obtain plural gel carrier.
The preparation method of the modified oxidized calcium is：By calcium oxide and potassium hydroxide in mass ratio 100:0.2 added to instead
Answer in container and be well mixed, by quality for the oxirane of calcium oxide 8wt% it is pressurized liquefied after be passed through in reaction vessel, in inertia
Reaction vessel is heated to 160 DEG C, stirring reaction 2h under gas pressurized protection；Reaction is cooled to room temperature after terminating, and is modified
Calcium oxide.
Step 1：Adhesive is dissolved with absolute ethyl alcohol；Simultaneously by nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, chemical enhancement
Agent, plural gel carrier, modified oxidized calcium mixing and stirring, then use adhesive bonding；Granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained release layer.
Step 2：Cyclodextrin is mixed with the water of its 0.8 times of quality, stirring in the pasty state after, addition nitrogenous fertilizer, phosphate fertilizer, potash fertilizer,
Trace element fertilizer, chemical enhancement agent are simultaneously uniformly dispersed, and then drying is not more than 3wt% to moisture content, obtains pastel；With anhydrous
Ethanol dissolves adhesive, and adhesive bonding is used after pastel is well mixed with release layer, granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained slow release layer.
Step 3：Alcohol-soluble macromolecule resin is dissolved with ethanol, by alcohol-soluble macromolecule resin coating to being sustained layer surface,
Coating layer is formed after drying, nursery stock antimicrobial inorganic oxygenation composite fertilizer is obtained.
Through overtesting, it is in the sustained release time-hardening theory of the obtained nursery stock antimicrobial inorganic oxygenation composite fertilizer of the present invention
15-25 days.
It is raw materials used in the present invention, unless otherwise noted, it is the conventional raw material of this area；Method therefor in the present invention,
Unless otherwise noted, it is the conventional method of this area.
Claims (10)
1. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer, it is characterized in that：Include release layer, slow release layer and bag successively from the inside to the outside
Film layer；The release layer is by following material composition：Microorganism fertilizer 10-20wt%, inorganic fertilizer 30-34wt%, chemical enhancement agent 2-
3wt%, plural gel carrier 40-50wt%, modified oxidized calcium 3-5wt%, adhesive surplus；The slow release layer is by following material
Composition：Microorganism fertilizer 10-20wt%, inorganic fertilizer 30-34wt%, chemical enhancement agent 2-3wt%, cyclodextrin 44-54wt%, bonding
Agent surplus；The coating layer is shitosan-starch-gelatin cross linking membrane.
2. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：The microorganism fertilizer
Preparation method is：Microorganism is configured to microbial solution, the oyster shell whiting or bentonite after calcining then be impregnated in into microorganism
Adsorbed in solution, centrifugation after saturation absorption obtains being adsorbed with the oyster shell whiting or bentonite of microorganism, is added to
Decomposed in the 8-12wt% sodium alginate solns of its 10-30 times of quality uniform；Then calcium chloride solution is added dropwise carries out cladding crosslinking
Solidification, after eventually passing suction filtration, vacuum drying, crushing, is obtained microorganism fertilizer.
3. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 2, it is characterized in that：The microorganism includes
Humic bacterium, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria.
4. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：The inorganic fertilizer by with
Lower material composition：Nitrogenous fertilizer 50-54wt%, phosphate fertilizer 20-22wt%, potash fertilizer 24-28wt%, trace element fertilizer surplus.
5. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 4, it is characterized in that：The nitrogenous fertilizer is selected from nitre
At least one in sour ammonium, ammonium sulfate nitrate, ammonium hydrogen carbonate, urea, ammonium sulfate, ammonium chloride；The phosphate fertilizer is selected from calcium phosphate, crosses phosphorus
At least one in sour calcium, MAP, Diammonium phosphate (DAP)；The potash fertilizer is selected from least in potassium chloride, potassium sulfate, potassium nitrate
Kind；The trace element fertilizer is selected from copper sulphate, magnesium sulfate, molybdenum trisulfate, manganese sulfate, zinc sulfate, ferrous sulfate, ferric nitrate, boric acid
With at least one in calcium silicates.
6. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：It is the release layer, slow
The mass ratio for releasing layer and coating layer is 1:3-5:0.4-0.6.
7. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：The chemical enhancement agent
It is at least one in calper calcium peroxide, urea peroxide and SODIUM PERCARBONATE；Described adhesive is PVP；The cyclodextrin is α-ring
Dextrin, beta-schardinger dextrin or gamma-cyclodextrin.
8. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：The plural gel is carried
The preparation method of body is：In taking marine alga chopping and being put into the 50-100 times of water of quality, 20- is heated at 95-105 DEG C
30min；Marine alga is transferred in the sodium pyrophosphate solution that the concentration of its 5-15 times of quality is 3-5wt% after filtering, at 50-60 DEG C
Lower immersion 0.5-1.5h, obtains viscous liquid；Viscous liquid is concentrated into solid content for 45-55wt%, to thick liquid
The polyvinyl alcohol of its 0.5-1 times of quality is added in body and is stirred；Then it is incubated at 40-50 DEG C, adding liquid gross mass
The sodium acid carbonate of 1-3%, stirring reaction 10-20min adjusts liquid pH value to neutrality after reaction, be finally dried to obtain compound solidifying
Glue carrier.
9. a kind of nursery stock antimicrobial inorganic oxygenation composite fertilizer according to claim 1, it is characterized in that：The modified oxidized calcium
Preparation method be：By calcium oxide and potassium hydroxide in mass ratio 100:0.1-0.2 is well mixed in being added to reaction vessel, will
Quality for calcium oxide 4-8wt% oxirane it is pressurized liquefied after be passed through in reaction vessel, inert gas pressurization protection under will
Reaction vessel is heated to 140-160 DEG C, stirring reaction 2-3h；Reaction is cooled to room temperature after terminating, and obtains modified oxidized calcium.
10. according to a kind of preparation method of one of claim 1-9 described nursery stock antimicrobial inorganic oxygenation composite fertilizer, its feature
It is that step is：
Step 1：Adhesive is dissolved with absolute ethyl alcohol；Simultaneously by inorganic fertilizer, chemical enhancement agent, plural gel carrier, modified oxygen
Change calcium mixing and stirring, then be well mixed with microorganism fertilizer, then use adhesive bonding；Granulation is sequentially passed through after bonding, is done
Dry and screening, is obtained release layer；
Step 2：Cyclodextrin is mixed with the water of its 0.4-0.8 times of quality, after stirring in the pasty state, addition inorganic fertilizer, chemical enhancement
Agent is simultaneously uniformly dispersed, then be well mixed with microorganism fertilizer, and then drying is not more than 3wt% to moisture content, obtains pastel；With nothing
Water-ethanol dissolves adhesive, after pastel is well mixed with release layer use adhesive bonding, sequentially passed through after bonding granulation,
Dry and screen, slow release layer is obtained；
Step 3：In mass ratio 1:0.5-1.5:0.5-1.5 weighs shitosan, starch, gelatin respectively, added in water and stirs
1-3h, is then heated to 60-80 DEG C until forming homogeneous solution；By the 1-3wt%'s of homogeneous solution and its 0.1-0.3 times of volume
Glutaraldehyde solution mixes, and carries out coating to the obtained sustained release layer surface of step 2 immediately, is dried immediately after coating, forms coating layer,
Nursery stock antimicrobial inorganic oxygenation composite fertilizer is obtained.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107445695A (en) * | 2017-08-14 | 2017-12-08 | 广西鑫雅皇庭园林工程有限责任公司 | A kind of ornamental plantation podocarpus composite fertilizer and preparation method thereof |
| CN107903111A (en) * | 2017-11-17 | 2018-04-13 | 马磊峰 | A kind of preparation method of the slow-release fertilizer of natural polymer subbase |
| CN108083896A (en) * | 2017-12-12 | 2018-05-29 | 常州琨瑶纺织品有限公司 | A kind of preparation method of bio-feritlizer |
| CN108794210A (en) * | 2018-08-28 | 2018-11-13 | 安徽农耕年华农业发展有限公司 | A kind of organic fertilizer and preparation method thereof containing mushroom bacteria residue |
| CN109574184A (en) * | 2018-12-27 | 2019-04-05 | 台州学院 | Slow-release oxygen cationic cross linking agent and preparation method thereof |
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| CN111875442A (en) * | 2020-07-20 | 2020-11-03 | 湖州灵粮生态农业有限公司 | Long-acting slow-release fertilizer containing trace elements and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105110997A (en) * | 2015-10-07 | 2015-12-02 | 吴朱冠宇 | Controlled release fertilizer and preparation method thereof |
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- 2016-11-23 CN CN201611056055.XA patent/CN106747958A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110997A (en) * | 2015-10-07 | 2015-12-02 | 吴朱冠宇 | Controlled release fertilizer and preparation method thereof |
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| CN107445695A (en) * | 2017-08-14 | 2017-12-08 | 广西鑫雅皇庭园林工程有限责任公司 | A kind of ornamental plantation podocarpus composite fertilizer and preparation method thereof |
| CN107903111A (en) * | 2017-11-17 | 2018-04-13 | 马磊峰 | A kind of preparation method of the slow-release fertilizer of natural polymer subbase |
| CN108083896A (en) * | 2017-12-12 | 2018-05-29 | 常州琨瑶纺织品有限公司 | A kind of preparation method of bio-feritlizer |
| CN110894175A (en) * | 2018-08-24 | 2020-03-20 | 天津国丰民裕农业科技有限公司 | Preparation method of granular organic fertilizer |
| CN108794210A (en) * | 2018-08-28 | 2018-11-13 | 安徽农耕年华农业发展有限公司 | A kind of organic fertilizer and preparation method thereof containing mushroom bacteria residue |
| CN109574184B (en) * | 2018-12-27 | 2022-08-02 | 台州学院 | Slow-release oxygen cation crosslinking agent and preparation method thereof |
| CN109574184A (en) * | 2018-12-27 | 2019-04-05 | 台州学院 | Slow-release oxygen cationic cross linking agent and preparation method thereof |
| CN110981599A (en) * | 2019-11-04 | 2020-04-10 | 河南科技学院 | Preparation method of chitosan multilayer coated wheat slow release fertilizer |
| CN111335296B (en) * | 2020-02-12 | 2022-06-24 | 遵义师范学院 | Multi-effect pile for soil fixation, corrosion reduction and slow release fertilizer increase in karst mountainous region and construction method thereof |
| CN111335296A (en) * | 2020-02-12 | 2020-06-26 | 遵义师范学院 | Multi-effect pile for soil fixation, corrosion reduction and slow release fertilizer increase in karst mountainous region and construction method thereof |
| CN111875442A (en) * | 2020-07-20 | 2020-11-03 | 湖州灵粮生态农业有限公司 | Long-acting slow-release fertilizer containing trace elements and preparation method thereof |
| GB2605728A (en) * | 2021-07-26 | 2022-10-12 | Inst Soil Science Cas | Hydroponic nutrient solution of vegetable and application thereof |
| GB2605728B (en) * | 2021-07-26 | 2024-01-24 | Inst Soil Science Cas | Vegetable hydroponic nutrient solution and application thereof |
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