CN110423162A - A kind of liquid slow-release compound fertilizer and preparation method thereof - Google Patents
A kind of liquid slow-release compound fertilizer and preparation method thereof Download PDFInfo
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- CN110423162A CN110423162A CN201910825915.9A CN201910825915A CN110423162A CN 110423162 A CN110423162 A CN 110423162A CN 201910825915 A CN201910825915 A CN 201910825915A CN 110423162 A CN110423162 A CN 110423162A
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The present invention relates to a kind of liquid slow-release compound fertilizers and preparation method thereof, including following raw material components: water-absorbing resin, stalk fermentation liquid, inorganic fertilizer solution and silicon solution, water-absorbing resin is by acrylic acid, 2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylates of methoxy poly (ethylene glycol), Sr-10 emulsifier, methyl methacrylate, acrylamide, vinylacetate, ammonium persulfate and rich water reaction are made, stalk fermentation liquid is by stalk, Trichoderma, rich water, aminoacids solution, peptone, livestock and poultry feces and kitchen garbage reaction are made, inorganic fertilizer solution is by urea, aminoacids solution, potassium dihydrogen phosphate, rich water, boric acid and zinc sulfate reaction are made, silicon solution is by silicon mud, rich water and aminoacids solution reaction are made.The invention has excellent sustained release performance.
Description
Technical field
The invention is related to a kind of liquid slow-release compound fertilizer and preparation method thereof, belongs to technical field of fertilizers.
Background technique
With the rapid development of social economy, people are to the mouthfeel of agricultural product, quality and environment-friendly and green organic fertilizer application etc.
The details of agricultural production process and because the problem of pesticide, chemical fertilizer etc. lead to soil pollution is gradually paid close attention to.Because chemical fertilizer is quick, application
Convenient advantage causes China to have the dependence of height for chemical fertilizer, and still, excessively applying chemical fertilizer leads to a series of consequences,
Such as: soil pollution is serious, crop mouthfeel is bad, crop quality declines, crop per mu yield reduces, chemical residues amount is big lacks
It falls into.In recent years, with the increasing of national organic fertilizer policy dynamics, people recognize composite organic-inorganic fertilizer and require constantly to mention
Rise, people propose multiple technologies requirement for organic fertilizer, such as: total nutrient, moisture content, initial stage nutrient release rate and accumulation in 28 days are supported
Divide the aspect of performance such as release rate that need to advanced optimize.
Application No. is the Chinese patents of CN201711310017.7 to disclose a kind of methylation polyacrylamide hollow sphere suction
Water-resin and preparation method thereof, by polyacrylamide hollow sphere water-absorbing resin, formic acid, formaldehyde, palladium carbon, water and Peracetic acid group
At.Although its water absorbent rate is high, it does not disclose that the Smoking indexes of the water-absorbing resin.
In short, slow release fertilizer is in total nutrient, moisture content, initial stage nutrient release rate and 28 days accumulation nutrient release rate performance sides
Face needs further to be promoted.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid slow-release compound fertilizers and preparation method thereof, former by changing reactant
The compound fertilizer of material and technology mode, preparation has excellent sustained release performance.
To achieve the goals above, the technical solution of the invention is as follows.
A kind of liquid slow-release compound fertilizer is 10:46~60:51~72:3~9 water-absorbing resin, stalk hair by mass ratio
Zymotic fluid, inorganic fertilizer solution and silicon solution composition, wherein water-absorbing resin, stalk fermentation liquid, inorganic fertilizer solution are mixed and freezed dry
After dry, it is freeze-dried, is crushed up to the compound fertilizer after gained compound particles surface sprinkling silicon solution,
The water-absorbing resin by mass ratio be 8:11~17:8~17:1~5:0.2~1:21~34:7~16:0.2~
The acrylic acid of 1:180~200,2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylates of methoxy poly (ethylene glycol),
Sr-10 emulsifier (reactive emulsifier Sr-10), methyl methacrylate, acrylamide, vinylacetate, ammonium persulfate and
Rich water is reacted to be made；
The stalk fermentation liquid is 35:0.07~3:16~25:2~7:1~5:13~26:12~21 by mass ratio
Stalk, Trichoderma, rich water, aminoacids solution, peptone, livestock and poultry feces and kitchen garbage are reacted obtained；
The inorganic fertilizer solution is 30:31~40:13~22:32~45:1~5:1~6 urea, ammonia by mass ratio
Base acid solution, potassium dihydrogen phosphate, rich water, boric acid and zinc sulfate are reacted obtained；
The silicon solution is silicon mud, rich water and the reacted system of aminoacids solution of 30:55~80:12~40 by mass ratio
.
Further, aminoacids solution is amino acid solution, and the amino acid masses content in aqueous solution is 8%-12%.
A kind of preparation method of liquid slow-release compound fertilizer, comprising the following steps:
(1), prepared by silicon solution
Silicon mud and rich water are added in reaction kettle according to the proportion, mixing speed 100r/min, maintenance system temperature 70
30min is reacted under the conditions of DEG C, aminoacids solution is added to reaction kettle, and control pH value of reaction system is 6.5, maintains above-mentioned reaction item
The reaction was continued under part 2h, product obtain silicon solution through cooling, filtering；
(2), prepared by inorganic fertilizer solution
Urea, potassium dihydrogen phosphate, rich water, boric acid and zinc sulfate are added in reaction kettle according to the proportion, mixing speed is
120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by aminoacids solution according to 0.2 mass parts/min addition speed
Rate is added to reaction kettle, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer solution；
(3), prepared by stalk fermentation liquid
Stalk, Trichoderma, livestock and poultry feces and kitchen garbage are added in fermenting house according to the proportion, fermentation temperature 60
DEG C, the mixed liquor of 10 mass parts rich water therein, aminoacids solution and peptone is divided 20 times and is sprayed to fermentation raw material surface, every time
After sprayed, by fermentation raw material turning and throwing once, total fermentation time was controlled at 15~20 days, and tunning and remaining rich water are added
It adds in reaction kettle, temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, and product is squeezed through squeezer, collects filter
Liquid, filtering, obtains stalk fermentation liquid；
(4), prepared by water-absorbing resin
By acrylic acid, 2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylates of methoxy poly (ethylene glycol), Sr-
10 emulsifiers, methyl methacrylate, acrylamide, vinylacetate, ammonium persulfate and rich water are added to reaction according to the proportion
In kettle, reaction temperature is 35 DEG C, and mixing speed is 300r/min mixing 45min, and temperature of reaction kettle is warming up to 67~75 DEG C instead
1~2h is answered, temperature of reaction kettle is warming up to 77~85 DEG C of 1~3h of reaction, keeps the temperature 2h, cooling, product is obtained through water washing, drying
To water-absorbing resin；
(5), prepared by liquid slow-release compound fertilizer
Water-absorbing resin, stalk fermentation liquid and inorganic fertilizer solution are added in reaction kettle according to the proportion, mixing temperature 50
DEG C, 0.1~0.5MPa mixing 35min, after product is freeze-dried, by silicon spray solution to surface of material, freeze-drying, powder
It is broken to get arrive liquid slow-release compound fertilizer.
Compared with prior art, the beneficial effects of the present invention are:
(1) useful element there are many containing in silicon mud, such as: silicon, calcium, magnesium, zinc element pass through the strong acid in aminoacids solution
(sulfuric acid) can promote the leaching of the elements such as silicon in silicon mud, and the metal ion of leaching can be by amino-acid complex；Silicon is through leaching process
Afterwards, silicon solution is formed, silicon solution after drying, can form layer protecting film in water-absorbent resin surfaces, improve the suction of water-absorbing resin
Damp performance and sustained release performance.
(2) aminoacids solution have highly acid, can with urea carry out acid-base neutralization, the salt of generation stability with higher,
And with boron Zn-ef ficiency complex reaction can occur for amino acid, improve material stability；The inorganic fertilizer solution of preparation is because it is with more excellent
Different stability can improve the sustained release performance of liquid slow-release compound fertilizer.
(3) rich water, aminoacids solution and peptone have easy absorption nutriment abundant, can quickly be absorbed by Trichoderma numerous
It grows, while having ensured Trichoderma quantity for stalk fermentation, can ensure the quality of fermentation temperature and stalk fermentation liquid；Preparation
There is stalk fermentation liquid excellent plant can directly absorb nutriment, can effectively improve soil hardening performance.
(4) water-absorbing resin is because introducing 2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylate of methoxy poly (ethylene glycol)
The monomers such as acid esters, vinylacetate, salt tolerance and the suction that can improve water-absorbing resin are salt, and water-absorbing resin passes through liquid is compound
Fertilizer is absorbed into inside water-absorbing resin, and after drying, compound fertilizer retains to water-absorbing resin, by being administered in soil,
Water-absorbing resin slow-absorbing soil moisture, and then the compound fertilizer controlled in water-absorbing resin is released slowly in soil, to reach
To slow releasing function.
Specific embodiment
A specific embodiment of the invention is described below with reference to embodiment, to better understand the present invention.This
It is a little that examples are only for illustrating the present invention and not for limiting the scope of the present invention.
Test method without specific conditions in following example, usually according to this field normal condition or according to manufacture
Condition recommended by the manufacturer；Used raw material, reagent etc. are unless otherwise specified that can obtain from commercial sources such as conventional markets
The raw materials and reagents arrived, aminoacids solution used herein, peptone and rich water (are distilled after dead livestock and poultry harmless treatment and are produced
Raw water contains Dissolved Organic Matter in water, and agriculture field is defined as rich water) it is the limited public affairs of Lianshui Beidou livestock and poultry harmless treatment
Department provides.Unless otherwise specified, the number in following example is parts by weight.Those skilled in the art is in base of the invention
The variation and replacement of any unsubstantiality done on plinth belong to scope of the present invention.
Embodiment 1
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 68 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 19.8 parts of aminoacids solutions is added to reaction kettle, control pH value of reaction system is 6.5, dimension
The 2h that holds under above-mentioned reaction condition that the reaction was continued, product obtain silicon solution, the purpose of the aminoacids solution is through cooling, filtering
While silicon in silicon mud is leached, microelement is complexed；
(2), 30 parts of urea, 16.7 parts of potassium dihydrogen phosphates, 39 parts of rich water, 2.3 parts of boric acid and 1.2 parts of zinc sulfate are weighed to be added
Into reaction kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 35.2 parts of amino acid
Liquid is added to reaction kettle according to the adding rate of 0.2 part/min, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer
Solution, the purpose of the aminoacids solution is for stable urea and complexing boron, Zn-ef ficiency；
(3), 35 parts of stalks, 0.43 part of Trichoderma, 18.6 parts of livestock and poultry feces and 15.9 parts of kitchen garbages are weighed and are added to hair
In ferment room, fermentation temperature is 60 DEG C, by 20 sprinklings of the mixed liquor of 10 parts of rich water, 4.3 parts of aminoacids solutions and 2.8 parts of peptones point
To fermentation raw material surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time is controlled at 16 days, will be fermented
Product and 9.5 parts of rich water are added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, product warp
Filtrate is collected in squeezer squeezing, and filtering obtains stalk fermentation liquid, the purpose of the rich water, aminoacids solution and peptone in order to
Promote the breeding of Trichoderma；
(4), 8 parts of acrylic acid, 13.6 parts of 2- acrylamide-2-methyl propane sulfonics, 15.1 parts of methoxy poly (ethylene glycol)s are weighed
550 monomethacrylates, 2.3 parts of Sr-10 emulsifiers, 0.25 part of methyl methacrylate, 25.3 parts of acrylamides, 9.6 parts
Vinylacetate, 0.36 part of ammonium persulfate and 188 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is
Temperature of reaction kettle is warming up to 71 DEG C of reaction 1.5h, temperature of reaction kettle is warming up to 82 DEG C of reactions by 300r/min mixing 45min
2h, keeps the temperature 2h, cooling, and product obtains water-absorbing resin through water washing, drying, the 2- acrylamide-2-methyl propane sulfonic,
The purpose of 550 monomethacrylates of methoxy poly (ethylene glycol), vinylacetate and rich water is in order to improve the suction salt of water-absorbing resin
Aqueous energy；
(5), 10 parts of water-absorbing resins, 51 parts of stalk fermentation liquid and 63 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Close temperature be 50 DEG C, 0.2MPa mixing 35min, it is cold by 4.5 parts of silicon spray solutions to surface of material after product is freeze-dried
Jelly dry, pulverize to arrive liquid slow-release compound fertilizer.
Embodiment 2
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 55 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 12 parts of aminoacids solutions are added to reaction kettle, and control pH value of reaction system is 6.5, is maintained
The reaction was continued under above-mentioned reaction condition 2h, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 13 parts of potassium dihydrogen phosphates, 32 parts of rich water, 1 part of boric acid and 1 part of zinc sulfate are weighed and is added to reaction
In kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 31 parts of aminoacids solutions according to 0.2
The adding rate of part/min is added to reaction kettle, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer solution；
(3), 35 parts of stalks, 0.07 part of Trichoderma, 13 parts of livestock and poultry feces and 12 parts of kitchen garbages are weighed and are added to fermenting house
In, fermentation temperature is 60 DEG C, and the mixed liquor of 10 parts of rich water, 2 parts of aminoacids solutions and 1 part of peptone is divided 20 times and is sprayed to proferment
Expect surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time is controlled at 20 days, by tunning and 6 parts
Rich water is added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, and product is squeezed through squeezer,
Filtrate is collected, filtering obtains stalk fermentation liquid；
(4), it is single that 8 parts of acrylic acid, 11 parts of 2- acrylamide-2-methyl propane sulfonics, 8 parts of methoxy poly (ethylene glycol)s 550 are weighed
Methacrylate, 1 part of Sr-10 emulsifier, 0.2 part of methyl methacrylate, 21 parts of acrylamides, 7 parts of vinylacetates,
0.2 part of ammonium persulfate and 180 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is 300r/min mixing
Temperature of reaction kettle is warming up to 67 DEG C of reaction 2h by 45min, and temperature of reaction kettle is warming up to 77 DEG C of reaction 3h, keeps the temperature 2h, is cooled down,
Product obtains water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 46 parts of stalk fermentation liquid and 51 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Closing temperature is 50 DEG C, 0.1MPa mixing 35min, after product is freeze-dried, by 3 parts of silicon spray solutions to surface of material, freezing
It dry, pulverize to get liquid slow-release compound fertilizer is arrived.
Embodiment 3
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 80 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 40 parts of aminoacids solutions are added to reaction kettle, and control pH value of reaction system is 6.5, is maintained
The reaction was continued under above-mentioned reaction condition 2h, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 22 parts of potassium dihydrogen phosphates, 45 parts of rich water, 5 parts of boric acid and 6 parts of zinc sulfate are weighed and are added to reaction
In kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 40 parts of aminoacids solutions according to 0.2
The adding rate of part/min is added to reaction kettle, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer solution；
(3), 35 parts of stalks, 3 parts of Trichodermas, 26 parts of livestock and poultry feces and 21 parts of kitchen garbages are weighed to be added in fermenting house,
Fermentation temperature is 60 DEG C, and the mixed liquor of 10 parts of rich water, 7 parts of aminoacids solutions and 5 parts of peptones is divided 20 times and is sprayed to fermentation raw material
Surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time is controlled at 15 days, by tunning and 15 parts
Rich water is added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, and product is squeezed through squeezer,
Filtrate is collected, filtering obtains stalk fermentation liquid；
(4), it is single that 8 parts of acrylic acid, 17 parts of 2- acrylamide-2-methyl propane sulfonics, 17 parts of methoxy poly (ethylene glycol)s 550 are weighed
Methacrylate, 5 parts of Sr-10 emulsifiers, 1 part of methyl methacrylate, 34 parts of acrylamides, 16 parts of vinylacetates, 1 part
Ammonium persulfate and 200 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is 300r/min mixing 45min,
Temperature of reaction kettle is warming up to 75 DEG C of reaction 1h, temperature of reaction kettle is warming up to 85 DEG C of reaction 1h, keeps the temperature 2h, cooling, product warp
Water washing, drying, obtain water-absorbing resin；
(5), 10 parts of water-absorbing resins, 60 parts of stalk fermentation liquid and 72 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Closing temperature is 50 DEG C, 0.5MPa mixing 35min, after product is freeze-dried, by 9 parts of silicon spray solutions to surface of material, freezing
It dry, pulverize to get liquid slow-release compound fertilizer is arrived.
Embodiment 4
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 57 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 13.9 parts of aminoacids solutions is added to reaction kettle, control pH value of reaction system is 6.5, dimension
The 2h that holds under above-mentioned reaction condition that the reaction was continued, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 15.2 parts of potassium dihydrogen phosphates, 36.1 parts of rich water, 1.8 parts of boric acid and 1.6 parts of zinc sulfate are weighed to add
Enter into reaction kettle, mixing speed 120r/min, react 21min under the conditions of 40 DEG C of maintenance system temperature, by 33.5 parts of amino
Acid solution is added to reaction kettle according to the adding rate of 0.2 part/min, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic
Fertile solution；
(3), 35 parts of stalks, 0.15 part of Trichoderma, 15.3 parts of livestock and poultry feces and 14.6 parts of kitchen garbages are weighed and are added to hair
In ferment room, fermentation temperature is 60 DEG C, by 20 sprinklings of the mixed liquor of 10 parts of rich water, 3.6 parts of aminoacids solutions and 1.7 parts of peptones point
To fermentation raw material surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time is controlled at 16 days, will be fermented
Product and 7.3 parts of rich water are added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, product warp
Squeezer squeezing, collects filtrate, and filtering obtains stalk fermentation liquid；
(4), 8 parts of acrylic acid, 13.2 parts of 2- acrylamide-2-methyl propane sulfonics, 9.9 parts of methoxy poly (ethylene glycol)s are weighed
550 monomethacrylates, 1.9 parts of Sr-10 emulsifiers, 0.4 part of methyl methacrylate, 23.6 parts of acrylamides, 10.3 parts
Vinylacetate, 0.3 part of ammonium persulfate and 185 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is
Temperature of reaction kettle is warming up to 69 DEG C of reaction 1.3h, temperature of reaction kettle is warming up to 79 DEG C of reactions by 300r/min mixing 45min
1.4h, keeps the temperature 2h, cooling, and product obtains water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 49 parts of stalk fermentation liquid and 53 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Close temperature be 50 DEG C, 0.18MPa mixing 35min, it is cold by 4.3 parts of silicon spray solutions to surface of material after product is freeze-dried
Jelly dry, pulverize to arrive liquid slow-release compound fertilizer.
Embodiment 5
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 61 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 14.6 parts of aminoacids solutions is added to reaction kettle, control pH value of reaction system is 6.5, dimension
The 2h that holds under above-mentioned reaction condition that the reaction was continued, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 15.7 parts of potassium dihydrogen phosphates, 36 parts of rich water, 2.3 parts of boric acid and 2.9 parts of zinc sulfate are weighed to be added
Into reaction kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 36 parts of aminoacids solutions
It is added to reaction kettle according to the adding rate of 0.2 part/min, it is molten to obtain inorganic fertilizer by the 1h that maintains under above-mentioned reaction condition that the reaction was continued
Liquid；
(3), 35 parts of stalks, 1.2 parts of Trichodermas, 17.8 parts of livestock and poultry feces and 16.9 parts of kitchen garbages are weighed and are added to fermentation
Fang Zhong, fermentation temperature are 60 DEG C, and the mixed liquor of 10 parts of rich water, 3.8 parts of aminoacids solutions and 2.7 parts of peptones is divided 20 times and is sprayed to
Fermentation raw material surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time was controlled at 17 days, and fermentation is produced
Object and 9.6 parts of rich water are added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, and product is through pressing
Crusher squeezing, collects filtrate, and filtering obtains stalk fermentation liquid；
(4), 8 parts of acrylic acid, 14.3 parts of 2- acrylamide-2-methyl propane sulfonics, 9.9 parts of methoxy poly (ethylene glycol)s are weighed
550 monomethacrylates, 2.9 parts of Sr-10 emulsifiers, 0.5 part of methyl methacrylate, 26 parts of acrylamides, 9.9 parts of acetic acid
Vinyl acetate, 0.4 part of ammonium persulfate and 190 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, mixing speed 300r/
Temperature of reaction kettle is warming up to 72 DEG C of reaction 1.3h by min mixing 45min, and temperature of reaction kettle is warming up to 79 DEG C of reaction 1.7h, is protected
Warm 2h, cooling, product obtain water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 51 parts of stalk fermentation liquid and 54 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Close temperature be 50 DEG C, 0.21MPa mixing 35min, it is cold by 4.6 parts of silicon spray solutions to surface of material after product is freeze-dried
Jelly dry, pulverize to arrive liquid slow-release compound fertilizer.
Embodiment 6
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and remaining rich water is added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 25 parts of aminoacids solutions are added to reaction kettle, and control pH value of reaction system is 6.5, is maintained
The reaction was continued under above-mentioned reaction condition 2h, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 18 parts of potassium dihydrogen phosphates, 40 parts of rich water, 3 parts of boric acid and 4 parts of zinc sulfate are weighed and are added to reaction
In kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 36 parts of aminoacids solutions according to 0.2
The adding rate of part/min is added to reaction kettle, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer solution；
(3), 35 parts of stalks, 2 parts of Trichodermas, 21 parts of livestock and poultry feces and 16 parts of kitchen garbages are weighed to be added in fermenting house,
Fermentation temperature is 60 DEG C, and the mixed liquor of 10 parts of rich water, 3 parts of aminoacids solutions and 3 parts of peptones is divided 20 times and is sprayed to fermentation raw material
Surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time is controlled at 17 days, by tunning and 10 parts
Rich water is added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, and product is squeezed through squeezer,
Filtrate is collected, filtering obtains stalk fermentation liquid；
(4), it is single that 8 parts of acrylic acid, 14 parts of 2- acrylamide-2-methyl propane sulfonics, 11 parts of methoxy poly (ethylene glycol)s 550 are weighed
Methacrylate, 3 parts of Sr-10 emulsifiers, 0.4 part of methyl methacrylate, 26 parts of acrylamides, 12 parts of vinylacetates,
0.4 part of ammonium persulfate and 190 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is 300r/min mixing
Temperature of reaction kettle is warming up to 70 DEG C of reaction 1.6h by 45min, and temperature of reaction kettle is warming up to 80 DEG C of reaction 1.5h, keeps the temperature 2h, drop
Temperature, product obtain water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 50 parts of stalk fermentation liquid and 58 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Closing temperature is 50 DEG C, 0.3MPa mixing 35min, after product is freeze-dried, by 7 parts of silicon spray solutions to surface of material, freezing
It dry, pulverize to get liquid slow-release compound fertilizer is arrived.
Embodiment 7
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 78 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 38 parts of aminoacids solutions are added to reaction kettle, and control pH value of reaction system is 6.5, is maintained
The reaction was continued under above-mentioned reaction condition 2h, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 21.1 parts of potassium dihydrogen phosphates, 43 parts of rich water, 4.5 parts of boric acid and 5.3 parts of zinc sulfate are weighed to be added
Into reaction kettle, mixing speed 120r/min reacts 21min under the conditions of 40 DEG C of maintenance system temperature, by 39 parts of aminoacids solutions
It is added to reaction kettle according to the adding rate of 0.2 part/min, it is molten to obtain inorganic fertilizer by the 1h that maintains under above-mentioned reaction condition that the reaction was continued
Liquid；
(3), 35 parts of stalks, 2.9 parts of Trichodermas, 25.3 parts of livestock and poultry feces and 20.7 parts of kitchen garbages are weighed and are added to fermentation
Fang Zhong, fermentation temperature are 60 DEG C, and the mixed liquor of 10 parts of rich water, 6.6 parts of aminoacids solutions and 4.7 parts of peptones is divided 20 times and is sprayed to
Fermentation raw material surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time was controlled at 19 days, and fermentation is produced
Object and 12.1 parts of rich water are added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, product warp
Squeezer squeezing, collects filtrate, and filtering obtains stalk fermentation liquid；
(4), 8 parts of acrylic acid, 16.6 parts of 2- acrylamide-2-methyl propane sulfonics, 16.5 parts of methoxy poly (ethylene glycol)s are weighed
550 monomethacrylates, 4.4 parts of Sr-10 emulsifiers, 0.9 part of methyl methacrylate, 32 parts of acrylamides, 14.6 portions of vinegar
Vinyl acetate, 0.8 part of ammonium persulfate and 196 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is
Temperature of reaction kettle is warming up to 73 DEG C of reaction 1.8h, temperature of reaction kettle is warming up to 83 DEG C of reactions by 300r/min mixing 45min
2.6h, keeps the temperature 2h, cooling, and product obtains water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 57 parts of stalk fermentation liquid and 71 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Close temperature be 50 DEG C, 0.45MPa mixing 35min, it is cold by 8.2 parts of silicon spray solutions to surface of material after product is freeze-dried
Jelly dry, pulverize to arrive liquid slow-release compound fertilizer.
Embodiment 8
A kind of liquid slow-release compound fertilizer, is prepared by the following steps:
(1), 30 parts of silicon mud are weighed and 73 parts of rich water are added in reaction kettle, mixing speed 100r/min, maintenance system
30min is reacted under the conditions of temperature 70 C, 35.6 parts of aminoacids solutions is added to reaction kettle, control pH value of reaction system is 6.5, dimension
The 2h that holds under above-mentioned reaction condition that the reaction was continued, product obtain silicon solution through cooling, filtering；
(2), 30 parts of urea, 19.8 parts of potassium dihydrogen phosphates, 40.3 parts of rich water, 3.2 parts of boric acid and 3.9 parts of zinc sulfate are weighed to add
Enter into reaction kettle, mixing speed 120r/min, react 21min under the conditions of 40 DEG C of maintenance system temperature, by 38.1 parts of amino
Acid solution is added to reaction kettle according to the adding rate of 0.2 part/min, the 1h that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic
Fertile solution；
(3), 35 parts of stalks, 2.1 parts of Trichodermas, 23.6 parts of livestock and poultry feces and 18.7 parts of kitchen garbages are weighed and are added to fermentation
Fang Zhong, fermentation temperature are 60 DEG C, and the mixed liquor of 10 parts of rich water, 5.5 parts of aminoacids solutions and 4.3 parts of peptones is divided 20 times and is sprayed to
Fermentation raw material surface, after sprayed every time, by fermentation raw material turning and throwing once, total fermentation time was controlled at 18 days, and fermentation is produced
Object and 13.9 parts of rich water are added in reaction kettle, and temperature of reaction kettle is 120 DEG C, handles 1h under 0.2MPa pressure condition, product warp
Squeezer squeezing, collects filtrate, and filtering obtains stalk fermentation liquid；
(4), 8 parts of acrylic acid, 15.5 parts of 2- acrylamide-2-methyl propane sulfonics, 15.3 parts of methoxy poly (ethylene glycol)s are weighed
550 monomethacrylates, 3.7 parts of Sr-10 emulsifiers, 0.7 part of methyl methacrylate, 31 parts of acrylamides, 14.3 portions of vinegar
Vinyl acetate, 0.6 part of ammonium persulfate and 191 parts of rich water are added in reaction kettle, and reaction temperature is 35 DEG C, and mixing speed is
Temperature of reaction kettle is warming up to 71 DEG C of reaction 1.7h, temperature of reaction kettle is warming up to 83 DEG C of reactions by 300r/min mixing 45min
2.6h, keeps the temperature 2h, cooling, and product obtains water-absorbing resin through water washing, drying；
(5), 10 parts of water-absorbing resins, 55 parts of stalk fermentation liquid and 66 parts of inorganic fertilizer solution are weighed to be added in reaction kettle, are mixed
Close temperature be 50 DEG C, 0.4MPa mixing 35min, it is cold by 7.5 parts of silicon spray solutions to surface of material after product is freeze-dried
Jelly dry, pulverize to arrive liquid slow-release compound fertilizer.
Reference examples 1
In this reference examples, silicon solution is not added, and other components and preparation method are same as Example 1.
Reference examples 2
In this reference examples, inorganic fertilizer solution is not added, and other components and preparation method are same as Example 1.
Reference examples 3
In this reference examples, stalk fermentation liquid is not added, and other components and preparation method are same as Example 1.
Reference examples 4
In this reference examples, water-absorbing resin is not added, other components and preparation method are same as Example 1.
Reference examples 5
The silicon solution in common silica solution alternate embodiment 1, other components and preparation side are selected in this reference examples, in formula
Method is same as Example 1.
Reference examples 6
The inorganic fertilizer solution in common urea aqueous solution alternate embodiment 1, other components are selected in this reference examples, in formula
It is same as Example 1 with preparation method.
Reference examples 7
The stalk fermentation liquid in common stalk fermentation liquid alternate embodiment 1, other components are selected in this reference examples, in formula
It is same as Example 1 with preparation method.
Reference examples 8
The water-absorbing resin in conventional absorbent paper resin alternate embodiment 1, other components and system are selected in this reference examples, in formula
Preparation Method is same as Example 1.
To liquid slow-release compound fertilizer made from Examples 1 to 8 and reference examples 1~8, total nutrient, moisture content, initial stage nutrient
Release rate and 28 days accumulation nutrient release rates are tested according to GB/T 23348, and test result sees below Tables 1 and 2.
The performance parameter of liquid slow-release compound fertilizer made from 1 Examples 1 to 8 of table
The performance parameter of liquid slow-release compound fertilizer made from 2 embodiment 1 of table and reference examples 1~8
。
By upper Tables 1 and 2 it is found that the total nutrient for the liquid slow-release compound fertilizer that various embodiments of the present invention are prepared, containing
Water rate, initial stage nutrient release rate and 28 days accumulation nutrient release rate performances are more excellent, this shows with raw material provided by the invention preparation
There is obtained liquid slow-release compound fertilizer preferable total nutrient, moisture content, initial stage nutrient release rate and 28 days accumulation nutrients to release
Put rate performance；In contrast, the total nutrient of the liquid slow-release compound fertilizer that the raw material of each reference examples is prepared, moisture content, just
Phase nutrient release rate and 28 days accumulation nutrient release rate performances are poor.In addition, the liquid that various embodiments of the present invention are prepared is slow
Compound fertilizer is released with preferable total nutrient, moisture content, initial stage nutrient release rate and 28 days accumulation nutrient release rate performances.
To sum up, the present invention uses water-absorbing resin, stalk fermentation liquid, inorganic fertilizer solution and silicon solution for raw material, is prepared for liquid
The liquid slow-release compound fertilizer of body slow-release compound fertilizer, this method preparation has excellent sustained release performance.
The above is the preferred embodiment of the invention, it is noted that for those skilled in the art
For, under the premise of not departing from the inventive principle, several improvements and modifications can also be made, these improvements and modifications are also considered as
The protection scope of the invention.
Claims (3)
1. a kind of liquid slow-release compound fertilizer, which is characterized in that by mass ratio be 10:46~60:51~72:3~9 water suction tree
Rouge, stalk fermentation liquid, inorganic fertilizer solution and silicon solution composition, wherein water-absorbing resin, stalk fermentation liquid, inorganic fertilizer solution are through mixed
After merging freeze-drying, it is freeze-dried, is crushed up to the compound fertilizer after gained compound particles surface sprinkling silicon solution,
The water-absorbing resin is 8:11~17:8~17:1~5:0.2~1:21~34:7~16:0.2~1 by mass ratio:
180~200 acrylic acid, 2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylates of methoxy poly (ethylene glycol), Sr-
10 emulsifiers, methyl methacrylate, acrylamide, vinylacetate, ammonium persulfate and rich water are reacted obtained；
The stalk fermentation liquid is 35:0.07~3:16~25:2~7:1~5:13~26:12~21 straw by mass ratio
Stalk, Trichoderma, rich water, aminoacids solution, peptone, livestock and poultry feces and kitchen garbage are reacted obtained；
The inorganic fertilizer solution is 30:31~40:13~22:32~45:1~5:1~6 urea, amino acid by mass ratio
Liquid, potassium dihydrogen phosphate, rich water, boric acid and zinc sulfate are reacted obtained；
The silicon solution is reacted obtained by the silicon mud, rich water and aminoacids solution that mass ratio is 30:55~80:12~40.
2. liquid slow-release compound fertilizer as described in claim 1, which is characterized in that aminoacids solution is amino acid solution,
In, amino acid masses content is 8%-12%.
3. the preparation method of liquid slow-release compound fertilizer as claimed in claim 1 or 2, which comprises the following steps:
(1), prepared by silicon solution
Silicon mud and rich water are added in reaction kettle according to the proportion, mixing speed 100r/min, 70 ± 2 DEG C of maintenance system temperature
Under the conditions of react 30min or more, aminoacids solution is added to reaction kettle, control pH value of reaction system is 6.5 ± 0.1, in maintenance
The 2h or more that states under reaction condition that the reaction was continued, product obtain silicon solution through cooling, filtering；
(2), prepared by inorganic fertilizer solution
Urea, potassium dihydrogen phosphate, rich water, boric acid and zinc sulfate are added in reaction kettle according to the proportion, mixing speed 120r/
Min reacts 21min or more under the conditions of 40 ± 2 DEG C of maintenance system temperature, by aminoacids solution according to 0.2 mass parts/min addition
Rate is added to reaction kettle, the 1h or more that maintains under above-mentioned reaction condition that the reaction was continued, obtains inorganic fertilizer solution；
(3), prepared by stalk fermentation liquid
Stalk, Trichoderma, livestock and poultry feces and kitchen garbage are added in fermenting house according to the proportion, fermentation temperature is 60 ± 2 DEG C,
The mixed liquor of 10 mass parts rich water, aminoacids solution and peptone is divided 15~30 times and is sprayed to fermentation raw material surface, is sprayed every time
After, by fermentation raw material turning and throwing once, total fermentation time was controlled at 15~20 days, and tunning and remaining rich water are added to
In reaction kettle, temperature of reaction kettle is 120 ± 5 DEG C, handles 1h or more under 0.2MPa pressure condition, and product is squeezed through squeezer, is received
Collect filtrate, filtering obtains stalk fermentation liquid；
(4), prepared by water-absorbing resin
By acrylic acid, 2- acrylamide-2-methyl propane sulfonic, 550 monomethacrylates of methoxy poly (ethylene glycol), Sr-10 cream
Agent, methyl methacrylate, acrylamide, vinylacetate, ammonium persulfate and rich water are added in reaction kettle according to the proportion,
Reaction temperature is 35 ± 2 DEG C, and mixing speed is 300r/min mixing 45min or more, and temperature of reaction kettle is warming up to 67~75 DEG C
React 1~2h, temperature of reaction kettle be warming up to 77~85 DEG C of 1~3h of reaction, keep the temperature 2h or more, cooling, product through water washing, do
It is dry, obtain water-absorbing resin；
(5), prepared by liquid slow-release compound fertilizer
Water-absorbing resin, stalk fermentation liquid and inorganic fertilizer solution are added in reaction kettle according to the proportion, mixing temperature is 50 ± 2
DEG C, 0.1~0.5MPa mixing 35min, after product is freeze-dried, by silicon spray solution to surface of material, freeze-drying, powder
It is broken to get arrive liquid slow-release compound fertilizer.
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