CN110079326A - A kind of preparation method of iron content soil conditioner - Google Patents
A kind of preparation method of iron content soil conditioner Download PDFInfo
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- CN110079326A CN110079326A CN201910481978.7A CN201910481978A CN110079326A CN 110079326 A CN110079326 A CN 110079326A CN 201910481978 A CN201910481978 A CN 201910481978A CN 110079326 A CN110079326 A CN 110079326A
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- Prior art keywords
- soil conditioner
- ammonium citrate
- iron content
- preparation
- iron
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000003516 soil conditioner Substances 0.000 title claims abstract description 57
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 46
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 86
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 56
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims abstract description 56
- 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 claims abstract description 40
- 239000004021 humic acid Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003245 coal Substances 0.000 claims abstract description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims description 27
- 239000003415 peat Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- 238000005292 vacuum distillation Methods 0.000 claims description 6
- 239000003077 lignite Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 2
- 229960004106 citric acid Drugs 0.000 claims 9
- 229960004543 anhydrous citric acid Drugs 0.000 claims 1
- UMEAURNTRYCPNR-UHFFFAOYSA-N azane;iron(2+) Chemical compound N.[Fe+2] UMEAURNTRYCPNR-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 15
- 230000004913 activation Effects 0.000 abstract description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 5
- 230000003213 activating effect Effects 0.000 abstract description 3
- 239000006174 pH buffer Substances 0.000 abstract description 3
- 206010022971 Iron Deficiencies Diseases 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 25
- 238000012545 processing Methods 0.000 description 19
- 239000003337 fertilizer Substances 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 9
- 239000002585 base Substances 0.000 description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 239000004202 carbamide Substances 0.000 description 6
- 210000003608 fece Anatomy 0.000 description 6
- 239000011790 ferrous sulphate Substances 0.000 description 6
- 235000003891 ferrous sulphate Nutrition 0.000 description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 6
- 239000010871 livestock manure Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011640 ferrous citrate Substances 0.000 description 2
- 235000019850 ferrous citrate Nutrition 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 iron ion Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- APVZWAOKZPNDNR-UHFFFAOYSA-L iron(ii) citrate Chemical compound [Fe+2].OC(=O)CC(O)(C([O-])=O)CC([O-])=O APVZWAOKZPNDNR-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 108010081409 Iron-Sulfur Proteins Proteins 0.000 description 1
- 102000005298 Iron-Sulfur Proteins Human genes 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 208000002720 Malnutrition Diseases 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229940090496 Urease inhibitor Drugs 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000018343 nutrient deficiency Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 239000002601 urease inhibitor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Materials Engineering (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention relates to a kind of preparation methods of iron content soil conditioner, including preparation step containing ferrous ammonium citrate；Iron content soil conditioner preparation step；Preparation step containing ferrous ammonium citrate is: citric acid and water Hybrid Heating heat up, iron powder is added to be stirred to react, cool down after reaction, it is passed through ammonia and is neutralized to pH 5.5-6.5, remove moisture, it obtains containing ferrous ammonium citrate, the present invention is by the way that ferrous ammonium citrate to be added in low-order coal, so that the not fulvo acid in low-order coal is activated into fulvo acid, the activating process is simple, the activation rate of humic acid is up to 50% or more, ferro element is ferrous iron in iron content soil conditioner obtained, it is easier to be absorbed by crops, in addition ammonium citrate, ammonium humate and entire pH buffer system are all conducive to the stability of ferrous ammonium citrate, ferrous ammonium citrate is easier to be absorbed by crops as water soluble salt, it can be used for rapid recovery as iron deficiency phenomenon, crop is avoided to generate aetiolation.
Description
Technical field
The present invention relates to a kind of preparation methods of iron content soil conditioner, belong to soil conditioner technical field.
Background technique
Currently, unreasonable application of the China due to chemical fertilizer, the problems such as soil pollution, acidification, salination, degeneration, nutritional deficiency day
Benefit is shown especially, it has also become influences the biggest obstacle of China's agricultural sustainable development.Currently, the soil tillage in 40% or more China has moved back
Change, 1.5 hundred million mu of arable lands are contaminated.Meanwhile since the eighties in last century, the soil conditioner product in China starts to start to walk, warp
The joint efforts of scientific research personnel and the whole industry are crossed, product category is more and more, and technical level is continuously improved, and soil conditioner is close
It is grown rapidly within several years.But soil conditioner product domestic at present is largely common universal type soil conditioner, is lacked
Weary specific aim cannot suit the remedy to the case, result in waste of resources.
Humic-acid kind soil conditioner is generally all known as having certain improvement to the structure of soil and the fertility of soil
With the effect of enhancing.Currently, the kind about humic acid fertilizer and humic acid soil conditioner is numerous, mainly there are three classes, it is a kind of
It is directly to prepare humic acid soil conditioner using low-order coal, the method is at low cost, but humic acid is non-aqueous in low-order coal
Property humic acid, it is difficult to tell in this season, reclamation result is poor.One kind is by mode of oxidizing by macromolecular humic acid
Acid becomes small molecule fulvo acid, and the water solubility and flocculation resistance of the humic acid of such method preparation are preferable, but prepare work
Skill is relative complex, higher cost.Third class is that humic acid is prepared into salt by plain mode, and insoluble humic acid is transformed into
Water-soluble humate, such method and process is simply at low cost, and still, the flocculation resistance of gained fulvo acid is poor.
Iron is the required micronutrient element of plant growth, participates in the organism physiological and biochemical procedure of many keys.In leaf
In green element synthesis process, iron is the catalyst of a variety of enzymes；Iron also participates in redox reaction and electronics biography in plant cell
Process is passed, for example, leguminous plant plays the azotase of nitrogen fixation, activated centre is exactly the compound of Mo-Fe protein and iron-sulfur protein
Object；The active constituent of relevant enzymes during iron or plant cell respiration.Fe2+It is the principal mode of plant absorption, removes
Gramineae plant can directly absorb part Fe3+Except, most of plant can only directly utilize the Fe in soil2+。Fe3+Only
Fe is reduced on root system surface2+It can just be absorbed later.Ferrous sulfate is common ferrous salt fertilizer, but it is in fertilizer, soil
The ferric iron precipitating that slightly solubility is easily formed in earth, so being only suitable for independent foliage-spray, is not suitable for adding in fertilizer, greatly
Limit the application of ferrous form ferro element.
Chinese patent literature CN106831239A discloses a kind of alkaline land soil adjustment, the saline alkali soil conditioner packet
Include following raw material: calcium sulfate, ferrous sulfate, humic acid, microbial bacterial agent, urease inhibitor, nitrification inhibitor, lignin, swollen
Moisten soil, zeolite powder, carboxymethyl chitosan, polyacrylamide, starch and auxiliary material, the auxiliary material is attapulgite, medical stone powder
With in gibbsite powder any one or at least two mixture.The saline alkali soil conditioner has given full play to each raw material
Synergistic effect, can be effectively reduced the pH value and salt content of salt affected soil, mitigate soil hardening, increase in soil calcium, iron with
And the content of organic matter.Iron is provided in the conditioner with ferrous sulfate, and the ferric iron that slightly solubility is easily formed in fertilizer, soil is heavy
It forms sediment, so being only suitable for independent foliage-spray, limits the application of ferrous form ferro element.
Chelated ferrous iron is prepared using organic molecule, iron ion is protected not to be fixed, to improve the utilization efficiency of Fe, is played
Better nutritive validity, this is the common method that ferro element nutrition is prepared in fertilizer.Usually protected using EDTA as chelating agent
Break iron ion, but EDTA do not allow it is degradable, be manured into soil in easily cause environmental pollution；And EDTA chelating agent can not be avoided effectively
Fe2+Oxidation, so at present EDTA chelating product in Iron activiation be mostly Fe3+。
In order to solve the problems, such as that soil improvement and crop are lower to the absorption efficiency of iron simultaneously, it is necessary to develop a kind of prepare
Simply, at low cost, the water solubility and the good iron-containing soil conditioner product of flocculation resistance of humic acid.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of preparation method of iron content soil conditioner, of the invention
Preparation method is by the way that ferrous ammonium citrate to be added in low-order coal, so that the not fulvo acid in low-order coal is activated into water
Dissolubility humic acid obtains iron content soil conditioner, contains fulvo acid and ferrous citrate in conditioner, can effectively change
The crumb structure of kind soil, activates and chelates the middle microelement in soil, while providing ferro element, and it is yellow to solve crop iron-deficient
The problem of change, to improve this season crop yield.Preparation process is simple, at low cost.
The present invention solves above-mentioned technical problem and is achieved through the following technical solutions:
A kind of preparation method of iron content soil conditioner, comprising steps of
Preparation step containing ferrous ammonium citrate；
Iron content soil conditioner preparation step；
The preparation step containing ferrous ammonium citrate is: citric acid and water Hybrid Heating heat up, and iron powder is added and is stirred to react,
Cool down after reaction, is passed through ammonia and is neutralized to pH 5.5-6.5, remove moisture, obtain containing ferrous ammonium citrate.
Preferred according to the present invention, in preparation step containing ferrous ammonium citrate, citric acid is Citric Acid Mono or anhydrous lemon
Lemon acid.
It is preferred according to the present invention, in preparation step containing ferrous ammonium citrate, the additional amount of water for citric acid quality 1~
2 times.
It is preferred according to the present invention, in preparation step containing ferrous ammonium citrate, the molar ratio of citric acid and iron powder for 12~
15:1, the partial size of iron powder are 0.075~0.15mm.
Preferred according to the present invention, in preparation step containing ferrous ammonium citrate, citric acid and water Hybrid Heating are warming up to 55-
85 DEG C, it is slow added into iron powder.
It is preferred according to the present invention, in preparation step containing ferrous ammonium citrate, the time is stirred to react as 2- after iron powder is added
4h is cooled to 40 DEG C ± 5 DEG C after reaction,.
Preferred according to the present invention, in preparation step containing ferrous ammonium citrate, solution removes moisture, institute by vacuum distillation
The vacuum distillation pressure stated is 10-25kp, and temperature is 70-90 DEG C.
It is preferred according to the present invention, iron content soil conditioner preparation step are as follows: low-order coal is ground into low order coal dust, then plus
Enter to contain ferrous ammonium citrate and water, be stirred continuously, reacted at 60-80 DEG C, reactant vacuum drying is to get iron content soil
Earth conditioner.
Preferred according to the present invention, the mass ratio of low-order coal and ferrous ammonium citrate is 1:0.4-0.5；Low-order coal and water
Mass ratio is 1:1-2.
Preferred according to the present invention, the low-order coal is weathered coal, lignite or peat, the total humic acid content in low-order coal
For 45-62%.
It is preferred according to the present invention, in iron content soil conditioner preparation step, reaction time 2-6h, the grain of low order coal dust
Diameter is 0.15~0.38mm, and vacuum drying temperature is 30~100 DEG C, 0~0.09Mpa of vacuum degree.
It is preferred according to the present invention, citric acid, ammonium citrate, citric acid chelating are contained in iron content soil conditioner obtained
Middle microelement, humic acid, humic acid chelating in microelement and ferrous ammonium citrate, it is soluble in water after weakly acidic, pH
For 3.5-6.5, humic acid is fulvo acid in iron content soil conditioner.
The present invention is led to ammonia after excessive citric acid and iron powder reaction and is neutralized, can be contained containing in ferrous ammonium citrate preparation
The mixture of ferrous ammonium citrate and ammonium citrate, ammonium citrate can form chelating stabilization to ferrous ammonium citrate.Later
Mixture containing ferrous ammonium citrate and ammonium citrate is added in weathered coal, part of ammonium citrate is by institute in low-order coal
Microelement is chelated in existing calcium, magnesium, iron, silicon etc., so that humic acid is easier to separate out, in addition, in ammonium citrate
NH4+Ammonium humate and citric acid can be formed, contains citric acid, citric acid in final product partially in conjunction with humic acid
Microelement and ferrous ammonium citrate, the product are molten in microelement, humic acid and humic acid chelating in ammonium, citric acid chelating
It will form pH buffer system after Yu Shuizhong, it is weakly acidic.
Beneficial effects of the present invention are as follows:
1, ferro element is ferrous iron in iron content soil conditioner produced by the present invention, it is easier to is absorbed by crops, in addition lemon
Lemon acid ammonium, ammonium humate and entire pH buffer system are all conducive to the stability of ferrous ammonium citrate, and ferrous ammonium citrate is made
It is easier to be absorbed by crops for water soluble salt, can be used for rapid recovery as iron deficiency phenomenon, crop is avoided to generate aetiolation.
2, preparation method of the invention is by the way that ferrous ammonium citrate to be added in low-order coal, so that the not water in low-order coal
Dissolubility humic acid is activated into fulvo acid, and the activating process is simple, and the activation rate of humic acid is unactivated up to 50% or more
The performance that humic acid improves soil is poor, and the water solubility activated is obvious to the improving effect of soil.
3, include micro member in citric acid, ammonium citrate, citric acid chelating in iron content soil conditioner produced by the present invention
Microelement and ferrous ammonium citrate in element, humic acid and humic acid chelating, will form pH buffering after the product is soluble in water
System, it is weakly acidic, it is obvious for the improved effect of soil, good pH can be especially played in acid-base property soil and is adjusted makees
With, can phosphorus and middle microelement in activating soil, improve soil texture, microelement during chelating soil is living reaches crop increasing
The purpose of production.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Weathered coal is purchased from Lvliang City magnificence Biological Development Co., Ltd, and wherein humic acid total amount is 46.59%；Lignite is purchased from
Heilungkiang Jia He humic acid Co., Ltd, wherein humic acid total amount is 48.36% in lignite；Peat is purchased from Xiamen City's black earth agricultural
Science and Technology Ltd., wherein humic acid total amount is 61.85%.
Embodiment 1
A kind of preparation method of iron content soil conditioner, the specific method is as follows:
Preparation containing ferrous ammonium citrate: being warming up to 55 DEG C for 210g Citric Acid Mono and the stirring of the water mixing back 192g,
It is slowly added to the iron powder of 250 mesh of 4.6g, and is constantly stirred to react 4h, rear temperature is down to 40 DEG C, is passed through ammonia and is neutralized to pH
6.5, acquired solution is evaporated under reduced pressure at 10kp, 70 DEG C removes moisture, obtains the 244.7g of product containing ferrous ammonium citrate.
100g weathered coal is ground into 40 mesh, be then added the above-mentioned prepared 40g of product containing ferrous ammonium citrate and
Water 200g, and reaction 2h is stirred continuously at 60 DEG C, after the reaction was completed, reactant drying can be prepared by 25kp, 70 DEG C
Soil conditioner product A.
Embodiment 2
A kind of preparation method of iron content soil conditioner, the specific method is as follows:
Preparation containing ferrous ammonium citrate: 192g citric acid and 288g water are warming up to 70 DEG C while stirring, are slowly added to
4.1g150 mesh iron powder, and it is constantly stirred to react 3h, rear temperature is down to 45 DEG C, is passed through ammonia and is neutralized to pH 6, acquired solution exists
20kp, vacuum distillation removes moisture at 85 DEG C, obtains the 244.6g of product containing ferrous ammonium citrate.
100g lignite is ground into 60 mesh, the above-mentioned prepared 45g of product containing ferrous ammonium citrate and water is then added
150g, and reaction 4h is stirred continuously at 70 DEG C, after the reaction was completed, reactant drying be can be prepared by into soil at 50kp, 80 DEG C
Earth conditioner product B.
Embodiment 3
A kind of preparation method of iron content soil conditioner, the specific method is as follows:
Preparation containing ferrous ammonium citrate: 192g citric acid and 384g water are warming up to 85 DEG C while stirring, are slowly added to
3.8g100 mesh iron powder, and it is constantly stirred to react 2h, rear temperature is down to 35 DEG C, is passed through ammonia and is neutralized to pH 5.5, acquired solution exists
25kp, vacuum distillation removes moisture at 90 DEG C, obtains the 244.4g of product containing ferrous ammonium citrate.
By 100 mesh of 100g peat grinds, the above-mentioned prepared 50g of product containing ferrous ammonium citrate and water is then added
100g, and reaction 6h is stirred continuously at 80 DEG C, after the reaction was completed, reactant drying be can be prepared by into soil at 25kp, 90 DEG C
Earth conditioner products C.
Comparative example 1
A kind of preparation method of iron content soil conditioner, steps are as follows:
By 100 mesh of 100g peat grinds, ferrous sulfate 50g and water 100g is then added, and constantly stir at 80 DEG C
It mixes reaction 6h after the reaction was completed to dry reactant at 25kp, 90 DEG C, can be prepared by soil conditioner product D.
Experimental example:
Distinguish the fulvo acid content in testing example 1-3 and 1 product of comparative example, calculate humic acid activation rate,
The results are shown in Table 1.
Content, the activation rate index of fulvo acid in 1 soil conditioner product of table
| Soil conditioner product | A | B | C | D |
| The content of fulvo acid | 18.80% | 19.32% | 21.97% | 0.8% |
| The activation rate of humic acid | 56.45% | 57.85% | 53.21% | 1.94% |
By upper table 1 as can be seen that the present invention is by the way that ferrous ammonium citrate to be added in low-order coal, so that in low-order coal
The activation of not fulvo acid at fulvo acid, the activation rate of the humic acid of embodiment 1-3 is and right up to 50% or more
For ratio 1 using iron content soil conditioner made from ferrous sulfate, the activation rate of humic acid is very low, and only 1.94%, ferrous sulfate
To humic acid substantially without activation capacity.
The effect of soil conditioner obtained in order to further illustrate the present invention, the present invention have carried out field to the product of preparation
Between test, experiment arrange it is as follows:
1, test place: test sets 5 processing, soil in Xianyang, Shanxi province city, river village, river township, Wugong County, test altogether
PH=8.44 meta-alkalescence, the content of organic matter 0.92%, alkali-hydrolyzable nitrogen 108ppm, available phosphorus 11ppm, available potassium 88ppm.Make in test
Compound fertilizer is 15-15-15 compound fertilizer.Experiment crop is summer corn.
2, experiment process is as follows:
2.1 processing 1: according to habits fertilization, 15-15-15 compound fertilizer 40kg is as base manure, toy trumpet mouth phase and big loudspeaker per acre
The mouth phase respectively imposes urea 10kg.
2.2 processing 2: 15-15-15 compound fertilizer 45kg is respectively imposed as base manure, toy trumpet mouth phase and big bell mouth stage per acre
Urea 10kg.
2.3, handle 3: 15-15-15 compound fertilizer 40kg+10kg soil conditioner product A is as base manure, toy trumpet mouth per acre
Phase and big bell mouth stage respectively impose urea 10kg.
2.4, handle 4: 15-15-15 compound fertilizer 40kg+10kg soil conditioner product B is as base manure, toy trumpet mouth per acre
Phase and big bell mouth stage respectively impose urea 10kg.
2.5, handle 5: 15-15-15 compound fertilizer 40kg+10kg soil conditioner products C is as base manure, toy trumpet mouth per acre
Phase and big bell mouth stage respectively impose urea 10kg.
2.6 processing 6: 15-15-15 compound fertilizer 40kg+10kg soil conditioner product D is as base manure, toy trumpet mouth per acre
Phase and big bell mouth stage respectively impose urea 10kg.
Table 2
| Processing | Yield (kg/ mus) | Than 1 volume increase of processing |
| Processing 1 | 576kg | ---- |
| Processing 2 | 580kg | 0.69% |
| Processing 3 | 656kg | 13.89% |
| Processing 4 | 651kg | 13.02% |
| Processing 5 | 660kg | 14.58% |
| Processing 6 | 589kg | 2.26% |
It can be seen that processing 1 and 2 per mu yield difference of processing are little by experimental result comparison in table 2, illustrate enough multiple in application
Crop yield will not effectively be promoted by increasing fertilizer in the case where Hefei again, and processing 3,4,5 is increased production respectively compared with processing 1
13.89%, 13.02%, 14.58%.Illustrate compared with traditional fertilization, applies prepared by the present invention containing ferrous soil conditioner
Can significantly it increase production, processing 6 reduces production 12.32% than processing 5, illustrates that ferrous citrate processing peat effect will be far better than sulphur
Sour ferrous treatment effect.
Claims (10)
1. a kind of preparation method of iron content soil conditioner, comprising steps of
Preparation step containing ferrous ammonium citrate；
Iron content soil conditioner preparation step；
The preparation step containing ferrous ammonium citrate is: citric acid and water Hybrid Heating heat up, and iron powder is added and is stirred to react, reacts
After cool down, be passed through ammonia and be neutralized to pH 5.5-6.5, remove moisture, obtain containing ferrous ammonium citrate.
2. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that contain ferrous ammonium citrate system
In standby step, citric acid is Citric Acid Mono or anhydrous citric acid.
3. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that contain ferrous ammonium citrate system
In standby step, the additional amount of water is 1~2 times of citric acid quality；The molar ratio of citric acid and iron powder is 12~15:1, iron powder
Partial size is 0.075~0.15mm.
4. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that contain ferrous ammonium citrate system
In standby step, citric acid and water Hybrid Heating are warming up to 55-85 DEG C, are slow added into iron powder；When being stirred to react after addition iron powder
Between be 2-4h, 40 DEG C ± 5 DEG C are cooled to after reaction,.
5. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that contain ferrous ammonium citrate system
In standby step, solution removes moisture by vacuum distillation, and the vacuum distillation pressure is 10-25kp, and temperature is 70-90 DEG C.
6. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that iron content soil conditioner system
Standby step are as follows: low-order coal is ground into low order coal dust, is then added and contains ferrous ammonium citrate and water, is stirred continuously, at 60-80 DEG C
Under reacted, reactant vacuum drying is to get iron content soil conditioner.
7. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that low-order coal and citric acid are sub-
The mass ratio of iron ammonium is 1:0.4-0.5；The mass ratio of low-order coal and water is 1:1-2.
8. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that the low-order coal is weathering
Coal, lignite or peat, the total humic acid content in low-order coal are 45-62%.
9. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that iron content soil conditioner system
In standby step, reaction time 2-6h, the partial size of low order coal dust is 0.15~0.38mm, and vacuum drying temperature is 30~100 DEG C,
0~0.09Mpa of vacuum degree.
10. the preparation method of iron content soil conditioner according to claim 1, which is characterized in that iron content soil obtained
In conditioner containing citric acid, ammonium citrate, citric acid chelating in microelement, humic acid, humic acid chelating in microelement
And ferrous ammonium citrate, it is soluble in water after weakly acidic, pH 3.5-6.5, humic acid is water-soluble in iron content soil conditioner
Property humic acid.
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