CN112010703A - Biological humic acid fertilizer and preparation method thereof - Google Patents
Biological humic acid fertilizer and preparation method thereof Download PDFInfo
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- CN112010703A CN112010703A CN202010926655.7A CN202010926655A CN112010703A CN 112010703 A CN112010703 A CN 112010703A CN 202010926655 A CN202010926655 A CN 202010926655A CN 112010703 A CN112010703 A CN 112010703A
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- coating agent
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 97
- 239000004021 humic acid Substances 0.000 title claims abstract description 57
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 49
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000000813 microbial effect Effects 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000002054 inoculum Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 47
- 238000002156 mixing Methods 0.000 claims description 35
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 30
- 239000003822 epoxy resin Substances 0.000 claims description 29
- 229920000647 polyepoxide Polymers 0.000 claims description 29
- 239000008187 granular material Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 20
- 229920002261 Corn starch Polymers 0.000 claims description 14
- 239000008120 corn starch Substances 0.000 claims description 14
- 238000000855 fermentation Methods 0.000 claims description 14
- 230000004151 fermentation Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 10
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 10
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 10
- 239000005642 Oleic acid Substances 0.000 claims description 10
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 10
- 238000006555 catalytic reaction Methods 0.000 claims description 10
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 10
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 7
- 241000193744 Bacillus amyloliquefaciens Species 0.000 claims description 7
- 241000194107 Bacillus megaterium Species 0.000 claims description 7
- 244000063299 Bacillus subtilis Species 0.000 claims description 7
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 7
- 239000005696 Diammonium phosphate Substances 0.000 claims description 7
- 238000007605 air drying Methods 0.000 claims description 7
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 7
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 7
- 238000009264 composting Methods 0.000 claims description 7
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 7
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 7
- 244000005700 microbiome Species 0.000 claims description 7
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 7
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 7
- 235000011151 potassium sulphates Nutrition 0.000 claims description 7
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical group NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 6
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical group O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 6
- 229960001124 trientine Drugs 0.000 claims description 6
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 5
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 5
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002689 soil Substances 0.000 abstract description 11
- 235000015097 nutrients Nutrition 0.000 abstract description 8
- 239000002861 polymer material Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 2
- 241000220223 Fragaria Species 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 235000016623 Fragaria vesca Nutrition 0.000 description 6
- 235000011363 Fragaria x ananassa Nutrition 0.000 description 6
- 241000235342 Saccharomycetes Species 0.000 description 6
- 235000021012 strawberries Nutrition 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- -1 humic acid compound Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- CCBICDLNWJRFPO-UHFFFAOYSA-N 2,6-dichloroindophenol Chemical compound C1=CC(O)=CC=C1N=C1C=C(Cl)C(=O)C(Cl)=C1 CCBICDLNWJRFPO-UHFFFAOYSA-N 0.000 description 1
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 1
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002509 fulvic acid Substances 0.000 description 1
- 229940095100 fulvic acid Drugs 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- OQUKIQWCVTZJAF-UHFFFAOYSA-N phenol;sulfuric acid Chemical compound OS(O)(=O)=O.OC1=CC=CC=C1 OQUKIQWCVTZJAF-UHFFFAOYSA-N 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- 238000005507 spraying Methods 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Tropical Medicine & Parasitology (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a biological humic acid fertilizer and a preparation method thereof, belonging to the technical field of fertilizers. The biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 50-80 parts of organic fertilizer, 20-40 parts of humic acid, 5-10 parts of inorganic fertilizer, 1-5 parts of compound microbial inoculant and 3-8 parts of coating agent. According to the invention, humic acid rich in various nutrient substances is used for replacing part of pure chemical fertilizers, a certain amount of organic fertilizer is added as an assistant, and a natural degradable high polymer material is used for replacing part of organic coating agents to synthesize a novel coating material, so that the double effects of water retention and slow release are realized. On one hand, the fertilizer can continuously provide nutrient substances for crops, achieves the technical effect which is basically equivalent to the chemical fertilizer or even superior to the pure chemical fertilizer, simultaneously has the effects of protecting the environment and improving the soil, achieves the effect of killing more than one thing, and has obvious social and economic benefits.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a biological humic acid fertilizer and a preparation method thereof.
Background
Humic acid is a natural organic high molecular compound, is the most valuable component in organic matters such as peat, weathered coal and lignite, is a high molecular organic acid consisting of aromatic and various functional groups thereof, and has good physiological activity characteristics and functions of absorption, complexation, exchange and the like. Meanwhile, the biological organic fertilizer is also an important component for greening environment and bioengineering construction, and is an important measure for realizing high-yield, high-quality and high-efficiency modern agriculture.
The molecular weight of the humic acid is between 800 and 5000, and the humic acid is divided into three components according to the solubility and the color of the humic acid in different solvents. The part directly extracted by alkali is called humic acid, wherein the part only dissolved in the alkali is called humic acid; the part dissolved in solvents such as acetone and ethanol is called as ulmic acid; the water-soluble fraction is called fulvic acid. The common humic acid occupies a larger proportion, is the most main component in all the components of the humic acid, and can be directly used as a fertilizer for application.
Under the conventional fertilization conditions, the in-season utilization rate of nitrogen, phosphorus and potassium fertilizers is low, and the loss of fertilizer nutrients not only causes the sharp increase of production cost, but also brings ecological environment problems of surface and underground water pollution, greenhouse gas emission increase, soil quality reduction and the like. The humic acid compound fertilizer is a fertilizer taking humic acid as a carrier, and by adding the humic acid into the compound fertilizer, nutrients such as nitrogen, phosphorus, potassium and the like can be slowly released, the volatilization and leaching loss of nitrogen are obviously reduced, the utilization rate of the fertilizer is improved, and the humic acid compound fertilizer is an efficient and pollution-free environment-friendly fertilizer.
However, the existing humic acid fertilizers have the problems of low fertilizer utilization rate, poor fertilizer efficiency stability, high dosage and single function, and the application of the humic acid fertilizers in the actual crop planting is limited to a certain extent.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a novel biological humic acid fertilizer, which takes organic mushroom dregs and humic acid as raw materials and takes a modified natural polymer material as a coating agent, so that the prepared fertilizer has good slow release effect, on one hand, organic and inorganic nutrient substances can be continuously provided for crops, and the using amount of common chemical fertilizers is reduced; on the other hand, the fertilizer can improve soil, preserve water, improve efficiency and improve crop yield and quality, and has obvious economic and social benefits.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 50-80 parts of organic fertilizer, 20-40 parts of humic acid, 5-10 parts of inorganic fertilizer, 1-5 parts of compound microbial inoculant and 3-8 parts of coating agent;
the organic fertilizer is selected from one or more of apple pomace, furfural residue, mushroom residue, bean pulp and wormcast; the inorganic fertilizer comprises the following components in parts by weight: 5-15 parts of urea, 5-10 parts of potassium sulfate, 1-3 parts of diammonium phosphate and 1-5 parts of calcium superphosphate.
The coating agent is prepared by the following steps:
1) dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4-5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler;
2) heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain the coating agent.
The curing agent is triethylene tetramine or diethylenetriamine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the stack for the first time when the temperature in the stack reaches 50-60 ℃, turning the stack for one time every 20-24 hours, and finishing fermentation after 2-3 times of turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 15-20 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4-5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler; heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at the temperature of 60 ℃ for 15 minutes, raising the temperature to 70-90 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing.
The particle size of the granules prepared in the step (2) is 2-4 mm.
The humic acid can be prepared from commercial mature products by fully grinding before use, and controlling the particle size to be less than or equal to 10 mu m.
Advantageous effects
The long-term use of a large amount of chemical fertilizer causes salinization and hardening of soil, loss of nutrient substances, reduction of crop yield and quality reduction, and the final result is irreversible damage to the soil environment, which is contrary to the strategic target of sustainable development. Aiming at the problems existing in the fertilizer industry at the present stage, the inventor uses humic acid rich in various nutrient substances to replace part of pure chemical fertilizer, adds a certain amount of organic fertilizer as assistance, and then uses natural degradable high polymer materials to replace part of organic coating agents to synthesize a novel coating material, thereby realizing the dual effects of water retention and slow release. On one hand, the fertilizer can continuously provide nutrient substances for crops, achieves the technical effect which is basically equivalent to the chemical fertilizer or even superior to the pure chemical fertilizer, simultaneously has the effects of protecting the environment and improving the soil, achieves the effect of killing more than one thing, has obvious social and economic benefits, and accords with the general development plan and the target of agriculture in China.
Drawings
FIG. 1 is a diagram showing a structure of a fertilizer granule obtained in example 3 of the present invention, (1) is a diagram showing a surface structure, and (2) is a diagram showing an internal structure;
FIG. 2 is a diagram showing the effect of the soil sustained release of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments, but is not limited thereto.
Example 1
A biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 50 parts of organic fertilizer, 20 parts of humic acid, 5 parts of inorganic fertilizer, 1 part of compound microbial agent and 3 parts of coating agent;
the organic fertilizer is apple pomace; the inorganic fertilizer comprises the following components in parts by weight: 5 parts of urea, 5 parts of potassium sulfate, 1 part of diammonium phosphate and 1 part of calcium superphosphate.
The coating agent is prepared by the following steps:
1) dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler;
2) heating the epoxy resin to 80 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain the coating agent.
The curing agent is triethylene tetramine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the pile for the first time when the temperature in the pile reaches 50-60 ℃, turning the pile for one time every 20 hours, and finishing fermentation after 2-3 times of pile turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 15 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler; heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at 60 ℃ for 15 minutes, raising the temperature to 70 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing. The particle size of the granules prepared in the step (2) is 2-4 mm.
Example 2
A biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 70 parts of organic fertilizer, 30 parts of humic acid, 8 parts of inorganic fertilizer, 3 parts of compound microbial agent and 5 parts of coating agent;
mixing the apple residues, the furfural residues and the mushroom residues of the organic fertilizer in quality; the inorganic fertilizer comprises the following components in parts by weight: 10 parts of urea, 8 parts of potassium sulfate, 2 parts of diammonium phosphate and 3 parts of calcium superphosphate.
The coating agent is prepared by the following steps:
1) dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler;
2) heating the epoxy resin to 90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain the coating agent.
The curing agent is diethylenetriamine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the pile for the first time when the temperature in the pile reaches 50-60 ℃, turning the pile for one time every 22 hours, and finishing fermentation after 2-3 times of pile turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 18 hours, and finishing the fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4.5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler; heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at 60 ℃ for 15 minutes, raising the temperature to 80 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing. The particle size of the granules prepared in the step (2) is 2-4 mm.
Example 3
A biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 80 parts of organic fertilizer, 40 parts of humic acid, 10 parts of inorganic fertilizer, 5 parts of compound microbial agent and 8 parts of coating agent;
the organic fertilizer is selected from apple pomace, furfural residue, mushroom residue, bean pulp, wormcast and the like which are mixed in quality; the inorganic fertilizer comprises the following components in parts by weight: 15 parts of urea, 10 parts of potassium sulfate, 3 parts of diammonium phosphate and 5 parts of calcium superphosphate.
The coating agent is prepared by the following steps:
1) dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler;
2) heating the epoxy resin to 90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain the coating agent.
The curing agent is triethylene tetramine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the pile for the first time when the temperature in the pile reaches 50-60 ℃, turning the pile for one time every 24 hours, and finishing fermentation after 2-3 times of pile turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 20 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler; heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at 60 ℃ for 15 minutes, raising the temperature to 90 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing. The particle size of the granules prepared in the step (2) is 2-4 mm.
Comparative example 1
A biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 80 parts of organic fertilizer, 40 parts of humic acid, 10 parts of inorganic fertilizer, 5 parts of compound microbial agent and 8 parts of coating agent;
the organic fertilizer is selected from apple pomace, furfural residue, mushroom residue, bean pulp, wormcast and the like which are mixed in quality; the inorganic fertilizer comprises the following components in parts by weight: 15 parts of urea, 10 parts of potassium sulfate, 3 parts of diammonium phosphate and 5 parts of calcium superphosphate.
The coating agent is prepared by the following steps:
1) heating the epoxy resin to 90 ℃, adding the curing agent and the corn starch according to the weight ratio of 8:1:3 of the epoxy resin, the curing agent and the corn starch, and uniformly mixing to obtain the coating agent.
The curing agent is triethylene tetramine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the pile for the first time when the temperature in the pile reaches 50-60 ℃, turning the pile for one time every 24 hours, and finishing fermentation after 2-3 times of pile turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 20 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: heating the epoxy resin to 90 ℃, adding the curing agent and the corn starch according to the weight ratio of 8:1:3 of the epoxy resin, the curing agent and the corn starch, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at 60 ℃ for 15 minutes, raising the temperature to 90 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing. The particle size of the granules prepared in the step (2) is 2-4 mm.
Comparative example 2
A biological humic acid fertilizer is prepared from the following raw materials in parts by weight: 80 parts of organic fertilizer, 40 parts of humic acid, 10 parts of inorganic fertilizer, 5 parts of compound microbial agent and 8 parts of coating agent;
the organic fertilizer is selected from apple pomace, furfural residue, mushroom residue, bean pulp, wormcast and the like which are mixed in quality; the inorganic fertilizer comprises the following components in parts by weight: 15 parts of urea, 10 parts of potassium sulfate, 3 parts of diammonium phosphate and 5 parts of calcium superphosphate.
The coating agent is prepared by the following steps:
1) heating the epoxy resin to 90 ℃, adding the curing agent according to the weight ratio of 8:1 of the epoxy resin to the curing agent, and uniformly mixing to obtain the coating agent.
The curing agent is triethylene tetramine.
The compound microbial agent is prepared by mixing saccharomycetes, bacillus megaterium, bacillus amyloliquefaciens, bacillus subtilis and the like in mass.
A preparation method of biological humic acid fertilizer comprises the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the pile for the first time when the temperature in the pile reaches 50-60 ℃, turning the pile for one time every 24 hours, and finishing fermentation after 2-3 times of pile turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 20 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: heating the epoxy resin to 90 ℃, adding the curing agent according to the weight ratio of 8:1 of the epoxy resin to the curing agent, and uniformly mixing to obtain the coating agent
4) Preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at 60 ℃ for 15 minutes, raising the temperature to 90 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing. The particle size of the granules prepared in the step (2) is 2-4 mm.
Testing
Observing the micro-morphology of the fertilizer by using a scanning electron microscope, adhering a sample on the conductive adhesive, and observing after gold spraying treatment. FIG. 1 is a diagram showing the structure of a fertilizer granule obtained in example 3 of the present invention, (1) is a diagram showing the structure of the surface thereof, and (2) is a diagram showing the structure of the interior thereof.
As can be seen from the pictures, the surface of the fertilizer is smooth, so that moisture can be prevented from rapidly entering the interior of the slow-release fertilizer, and the release of the fertilizer is delayed. The fertilizer has a loose and porous internal structure, and the modified corn starch and the epoxy resin are used as coating agents to obtain a structure with a compact external and porous inner layer. On one hand, the humic acid slow release fertilizer can absorb and slowly release organic and inorganic fertilizers, particularly humic acid, and simultaneously has the effect of enlarging fertilizer efficiency.
In-soil sustained release test
A PVC pipe having a diameter of about 10cm and a height of about 30cm was used and the bottom of the PVC pipe was sealed with a 200 mesh nylon net. A mixture of a slow release fertilizer and 100g of dry sand was added to a PVC pipe, and at the same time, 100g of dry sand containing no slow release fertilizer was added to another PVC pipe for a control experiment. Then, 70m L deionized water was added to the PVC pipe and 5m L soil leachate was collected over a time interval. The method for measuring the urea content in the solution by an ultraviolet-visible spectrophotometry is characterized in that the calculation method of the urea content released by the sample in the soil at different times is as shown in the formula:
VEand V0Is the sample volume and the initial volume of the release medium, respectively, Ci and Cn are the urea concentration, i and n are the sampling times, M0Is the total mass of fertilizer loaded in the sample. The results are shown in FIG. 2.
Planting test
The test varieties are: strawberry 'Hongyan'
Test site: the test is carried out in 2019 in 9 months in a certain strawberry planting place in Sichuan Chengdu
The test method comprises the following steps: the test was carried out using 7 treatments, each of which had a treatment area of 667m, in test groups S1-S72S1-S3, the fertilizers obtained in the invention examples 1-3 are applied with the fertilizing amount of 400 kg/mu, and are uniformly spread on the ground surface before the strawberry is planted, and then are ploughed into the soil. S4-S5The fertilizer obtained in comparative examples 1-2 was applied, S6 was the daily fertilizer used by farmers, and S7 was a blank control.
Investigation of root rot incidence:
and (4) investigating the incidence condition of the root rot of the strawberries in the swelling period of the strawberries, and randomly selecting 6 rows with each row being 10m for each treatment. The strawberry disease incidence adopts a field investigation method:
the incidence rate is that the number of dead seedlings/the total number of planted seedlings in the investigation interval is multiplied by 100 percent
The full bearing period of the strawberries is investigated for the yield of the strawberries from S1 to S7 and the quality of the strawberries is determined.
The quality measurement was carried out according to the following method: selecting 50 strawberry fruits with relatively consistent maturity, fully grinding and filtering to obtain filtrate, and measuring the content of soluble sugar in the filtrate by adopting a phenol-sulfuric acid method; measuring the titratable acid content in the filtrate by an acid-base titration method; measuring the protein content by using a Kjeldahl apparatus method; the ascorbic acid content in the filtrate was determined by 2, 6-dichloroindophenol titration, and the data were repeated 3 times, and the average was taken.
The test results are shown in table 1:
TABLE 1 strawberry cultivation test results
It should be noted that the above-mentioned embodiments are only some of the preferred modes for implementing the invention, and not all of them. Obviously, all other embodiments obtained by persons of ordinary skill in the art based on the above-mentioned embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
Claims (6)
1. The biological humic acid fertilizer is characterized by being prepared from the following raw materials in parts by weight: 50-80 parts of organic fertilizer, 20-40 parts of humic acid, 5-10 parts of inorganic fertilizer, 1-5 parts of compound microbial inoculant and 3-8 parts of coating agent;
the organic fertilizer is selected from one or more of apple pomace, furfural residue, mushroom residue, bean pulp and wormcast; the inorganic fertilizer comprises the following components in parts by weight: 5-15 parts of urea, 5-10 parts of potassium sulfate, 1-3 parts of diammonium phosphate and 1-5 parts of calcium superphosphate.
2. The biological humic fertilizer of claim 1, wherein the coating agent is prepared by the following steps:
1) dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4-5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler;
2) heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain the coating agent.
3. The biological humic fertilizer of claim 2 wherein the curing agent is triethylene tetramine or diethylene triamine.
4. The biological humic acid fertilizer according to claim 1, wherein the compound microbial agent is a mixture of yeast, bacillus megaterium, bacillus amyloliquefaciens and bacillus subtilis.
5. A method for preparing biological humic acid fertilizer according to any one of claims 1 to 4, which is characterized by comprising the following steps:
1) mixing organic fertilizer, humic acid and compound microorganism, performing composting, stacking and fermenting, turning the stack for the first time when the temperature in the stack reaches 50-60 ℃, turning the stack for one time every 20-24 hours, and finishing fermentation after 2-3 times of turning;
2) adding inorganic fertilizer into the material fermented in the step (1), uniformly mixing, fermenting again, turning the piles once every 15-20 hours, and finishing the secondary fermentation after 2-3 times of pile turning; granulating the obtained material, and air-drying;
3) preparing a coating agent: dissolving 5g of corn starch in 200ml of 80 ℃ hot water, stirring for 1h, adding 10ml of 2% acetic acid by mass, adding 1g of oleic acid, adding 0.1g of concentrated sulfuric acid for catalysis, keeping the temperature at 60 ℃ for reflux reaction for 4-5h, and after the reaction is finished, placing the mixture in a drying oven for drying to obtain a filler; heating the epoxy resin to 80-90 ℃, adding the curing agent and the filler according to the weight ratio of the epoxy resin to the curing agent to the filler of 8:1:3, and uniformly mixing to obtain a coating agent;
4) preheating the granules obtained in the step (3) in a rotary drum at the rotating speed of 40rmp at the temperature of 60 ℃ for 15 minutes, raising the temperature to 70-90 ℃, repeatedly and repeatedly carrying out multiple times on the surfaces of the coating agent granules obtained in the step (3) according to the proportion to obtain finished fertilizer, packaging and warehousing.
6. The method for preparing biological humic acid fertilizer according to claim 5, wherein the particle size of the granules obtained in step (2) is 2-4 mm.
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