CN116693342A - Preparation method of stable synergistic liquid fertilizer containing polymerized phosphorus and fertilizer - Google Patents
Preparation method of stable synergistic liquid fertilizer containing polymerized phosphorus and fertilizer Download PDFInfo
- Publication number
- CN116693342A CN116693342A CN202310410829.8A CN202310410829A CN116693342A CN 116693342 A CN116693342 A CN 116693342A CN 202310410829 A CN202310410829 A CN 202310410829A CN 116693342 A CN116693342 A CN 116693342A
- Authority
- CN
- China
- Prior art keywords
- liquid
- fertilizer
- phosphorus
- urea
- polyphosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 79
- 239000003337 fertilizer Substances 0.000 title claims abstract description 76
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 42
- 239000011574 phosphorus Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 19
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 68
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 239000004202 carbamide Substances 0.000 claims abstract description 35
- 229920005610 lignin Polymers 0.000 claims abstract description 32
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 27
- 239000011259 mixed solution Substances 0.000 claims abstract description 23
- 150000001413 amino acids Chemical class 0.000 claims abstract description 19
- 239000004254 Ammonium phosphate Substances 0.000 claims abstract description 18
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 18
- 229920000388 Polyphosphate Polymers 0.000 claims abstract description 18
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims abstract description 18
- 235000019289 ammonium phosphates Nutrition 0.000 claims abstract description 18
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 18
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 18
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001205 polyphosphate Substances 0.000 claims abstract description 18
- 235000011176 polyphosphates Nutrition 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000010902 straw Substances 0.000 claims abstract description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008098 formaldehyde solution Substances 0.000 claims abstract description 7
- 230000009920 chelation Effects 0.000 claims abstract description 6
- 239000000375 suspending agent Substances 0.000 claims abstract description 6
- 235000013877 carbamide Nutrition 0.000 claims abstract description 3
- 239000003054 catalyst Substances 0.000 claims description 27
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 26
- 229920001542 oligosaccharide Polymers 0.000 claims description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 23
- 238000006116 polymerization reaction Methods 0.000 claims description 21
- 241000199919 Phaeophyceae Species 0.000 claims description 20
- -1 functional group compound Chemical class 0.000 claims description 20
- 150000002482 oligosaccharides Chemical class 0.000 claims description 20
- 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 claims description 19
- 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 claims description 19
- 239000002509 fulvic acid Substances 0.000 claims description 19
- 229940095100 fulvic acid Drugs 0.000 claims description 19
- 229940090496 Urease inhibitor Drugs 0.000 claims description 18
- 239000002601 urease inhibitor Substances 0.000 claims description 18
- 239000003112 inhibitor Substances 0.000 claims description 16
- 239000001103 potassium chloride Substances 0.000 claims description 13
- 235000011164 potassium chloride Nutrition 0.000 claims description 13
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000011591 potassium Substances 0.000 claims description 12
- 229910052700 potassium Inorganic materials 0.000 claims description 12
- 229910021529 ammonia Inorganic materials 0.000 claims description 11
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 11
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 11
- 235000011151 potassium sulphates Nutrition 0.000 claims description 11
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 9
- 239000013522 chelant Substances 0.000 claims description 8
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 7
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 claims description 5
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- UWONNLWKQIUWRA-UHFFFAOYSA-N 2-chloro-2-methyl-1h-pyridine Chemical compound CC1(Cl)NC=CC=C1 UWONNLWKQIUWRA-UHFFFAOYSA-N 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- DISPOJHKKXSCLS-UHFFFAOYSA-N n-diaminophosphorylmethanamine Chemical compound CNP(N)(N)=O DISPOJHKKXSCLS-UHFFFAOYSA-N 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 2
- 235000011009 potassium phosphates Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 230000029219 regulation of pH Effects 0.000 claims 2
- 238000010668 complexation reaction Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 235000015097 nutrients Nutrition 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000000855 fermentation Methods 0.000 abstract description 5
- 230000004151 fermentation Effects 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- 239000002689 soil Substances 0.000 description 26
- 235000001014 amino acid Nutrition 0.000 description 18
- 240000008042 Zea mays Species 0.000 description 14
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 14
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 14
- 235000005822 corn Nutrition 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 239000000618 nitrogen fertilizer Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 241000209094 Oryza Species 0.000 description 7
- 235000007164 Oryza sativa Nutrition 0.000 description 7
- 235000009566 rice Nutrition 0.000 description 7
- 235000016709 nutrition Nutrition 0.000 description 6
- 230000035764 nutrition Effects 0.000 description 6
- 239000011573 trace mineral Substances 0.000 description 6
- 235000013619 trace mineral Nutrition 0.000 description 6
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910052793 cadmium Inorganic materials 0.000 description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 5
- 125000000524 functional group Chemical group 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229940072056 alginate Drugs 0.000 description 4
- 235000010443 alginic acid Nutrition 0.000 description 4
- 229920000615 alginic acid Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 229920000137 polyphosphoric acid Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
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- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 235000018102 proteins Nutrition 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
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- VXIXUWQIVKSKSA-UHFFFAOYSA-N 4-hydroxycoumarin Chemical compound C1=CC=CC2=C1OC(=O)C=C2O VXIXUWQIVKSKSA-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 2
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 description 2
- 239000004473 Threonine Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 239000000446 fuel Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
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- 239000000203 mixture Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
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- 230000004083 survival effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- REZQBEBOWJAQKS-UHFFFAOYSA-N triacontan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO REZQBEBOWJAQKS-UHFFFAOYSA-N 0.000 description 2
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The invention discloses a preparation method of a synergistic liquid fertilizer containing polymerized phosphorus and a fertilizer, which are characterized in that liquid phosphoric acid and urea are polymerized to generate a liquid urea polyphosphate, the liquid urea polyphosphate is polymerized with ammonia water for the second time to prepare a first mixed solution of ammonium polyphosphate, ammonium phosphate and urea polyphosphate, the pH value is regulated to 6.5-7.5, the first mixed solution is fully stirred, mixed and packed to obtain a finished product, after the first mixed solution is generated and before the pH value is regulated, sulfonated straw powder is added into the first mixed solution for fermentation, and SO is introduced 3 And dropwise adding formaldehyde solution to generate phosphorylated lignin, performing chelation reaction at normal temperature to form a second mixed solution containing chelated lignin and amino acid, and adding a suspending agent. The invention aims to reduce the production cost, improve the water solubility of phosphorus element, enrich the nutrient components of the liquid fertilizer and enable the liquid to beThe fertilizer does not need to be added with other fertilizers in the application process, so that the weight losing and synergy are further realized.
Description
Technical Field
The invention belongs to the technical field of agricultural fertilizer preparation, relates to a preparation method of a liquid fertilizer and a fertilizer, and particularly relates to a preparation method of a stable synergistic liquid fertilizer containing polymerized phosphorus and a fertilizer.
Background
The traditional granular fertilizer has large fertilizing amount, can reduce the bearing capacity of soil after long-term use, can not meet the modern technological agricultural requirements, and is a novel fertilizer with stable quality, low price and weight losing and synergy.
The liquid fertilizer is more beneficial to crop absorption and utilization because the main active ingredients are in a dissolved state, and the fact proves that the application of the liquid fertilizer can reduce the fertilizing amount and improve the yield of agricultural products.
As can be seen, the liquid fertilizer is still in the starting stage in China agriculture and has a large development space, so people continuously research the components and the process of the liquid fertilizer, for example, the liquid fertilizer has the document number of CN
The Chinese patent application 112592242A discloses a liquid fertilizer, wherein phosphorus element in the fertilizer is changed from ammonium phosphate into urea phosphate or ammonium polyphosphate with low polymerization degree, the fixation time of the phosphorus element in soil is delayed, the utilization rate of the phosphorus element is improved, the pH value of the soil is improved, the application amount of the fertilizer is reduced, the purpose of losing weight and improving efficiency is realized, pure phosphoric acid is adopted as raw materials in the technology, ammonium bicarbonate serving as a catalyst is added in the reaction, the polymerization degree is controlled between 3.5 and 4.5, and the pH value is controlled between 1.9 and 2.4. According to the technology, although the water solubility of the phosphorus element reaches 90%, the phosphorus element cannot reach full water solubility, the obtained liquid fertilizer has single component and incomplete function, and other fertilizers are required to be applied in an auxiliary way to meet the growth requirements of crops.
Disclosure of Invention
The invention aims to further improve the water solubility of phosphorus element and enrich the nutrition components of the liquid fertilizer, so that the liquid fertilizer does not need to be added with other fertilizers in the application process, and further weight reduction and synergy are realized.
The technological scheme of the present invention is that the preparation process of synergistic liquid fertilizer with stable phosphorus content includes the polymerization of liquid phosphoric acid and urea to produce liquid urea polyphosphate, the secondary polymerization of the liquid urea polyphosphate and ammonia water to obtain the first mixed liquid of ammonium polyphosphate, ammonium phosphate and urea polyphosphate, regulating pH value to 6.5-7.5, and packing to obtain the final product, and the technological process includes adding sulfonated stalk powder after fermentation and introducing SO after the first mixed liquid is produced and before regulating pH value 3 And dropwise adding formaldehyde solution to generate phosphorylated lignin, performing chelation reaction at normal temperature to form a second mixed solution containing chelated lignin and amino acid, adding suspending agent, and fully stirring and mixing.
Further, after the second mixed solution is generated and before the suspending agent is added, adding biochemical potassium fulvate into the second mixed solution, and carrying out a complex reaction to form a third mixed solution containing a small molecular compound of polymeric amino acid, phosphate potassium salt and fulvic acid.
Further, the granularity of the straw powder is 200 meshes.
Furthermore, the polymerization reaction and the secondary polymerization reaction are carried out under the action of a catalyst, wherein the catalyst is one or a combination of sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide and sodium carbonate, and the dosage of the catalyst is 0.8 per mill to 1.2 per mill.
Further, in the polymerization reaction and the secondary polymerization reaction, a chemical reaction control agent is used to control the reaction progress, the polymerization degree of the ammonium polyphosphate is 9% -15%, and the dosage of the chemical reaction control agent is 0.4-1.0%.
Further, the concentration of the ammonia water is 30% -40%, the liquid phosphoric acid is 45% -60% concentrated liquid phosphoric acid containing phosphorus pentoxide, and in the preparation process, brown alginate oligosaccharides, a urease inhibitor, a nitrification inhibitor, potassium chloride or potassium sulfate are added, wherein the urease inhibitor adopts one or a combination of thiourea and methylphosphoric triamide, and the nitrification inhibitor adopts one or a combination of dicyandiamide, 2-chloro-picoline and hydroquinone.
The synergistic liquid fertilizer containing polymerized phosphorus stability is prepared by the preparation method, and is characterized by comprising 20-35 parts of urea polyphosphate, 35-55 parts of ammonium polyphosphate, 5-10 parts of ammonium phosphate, 0.1-30 parts of potassium chloride or potassium sulfate, 1-2 parts of ammonium sulfate, 0.1-0.2 part of fulvic acid, 0.02-0.1 part of chelate lignin, 0.01-0.02 part of complex polymerized amino acid micromolecule compound, 0.05-0.15 part of small molecular functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.05-0.15 part of urease inhibitor, 0.05-0.15 part of nitrification inhibitor and 0.01-0.05 part of brown algae oligosaccharide.
Compared with the prior art, the invention has the following beneficial effects:
the stable synergistic liquid fertilizer containing polymerized phosphorus prepared by the invention has complete functions, good effect and rich nutrition components, contains various amino acids, and medium elements such as sulfur elements and various microelements necessary for crops, wherein the nitrogen and phosphorus content is sufficient, the release period is matched with the growth period of crops, and meanwhile, the components do not independently produce effects, and the synergistic liquid fertilizer also has synergistic effect, further improves the absorption and utilization efficiency of crops on various effective components, can achieve one-time fertilization, and has the beneficial effects of producing various effects and having sufficient duration.
First, the product water solubility is better, and manufacturing cost is lower, and production efficiency is high:
the invention improves the water solubility of the phosphorus element from 90% in the prior art to full water solubility, and improves the utilization ratio of the phosphorus element. The raw materials with low price are selected, the reaction is completed under the action of the catalyst without high Wen Bianke, the heating of fuel and steam is not needed in the production process, and the carbon emission is reduced by about 30 percent. The phosphoric acid solution replaces pure phosphoric acid in the prior art, so that the purity of the phosphoric acid is reduced, unnecessary impurities are not introduced, and the reaction progress and the product quality can be ensured. Meanwhile, the pipeline blockage and equipment scaling caused by using the pure phosphoric acid with high viscosity are avoided, and the production efficiency is further improved.
The catalyst selected by the invention has higher efficiency and lower usage amount, reduces ammonia gas generation during use, reduces air pollution, simultaneously reduces foam generation in the reaction kettle, improves the filling rate of the reaction kettle, improves the production efficiency, and further reduces energy consumption. The catalyst containing calcium and magnesium elements is selected, and corresponding microelements required by crops can be supplemented, so that the nutrition component variety of the invention is enriched.
Secondly, the utilization rate of phosphorus element and nitrogen element is high, the release validity period is long, and the improvement of crop quality and yield is facilitated:
the release effective period of phosphorus element in the urea polyphosphate is about 100 days, which is 1.6-1.9 times of that of common ammonium phosphate; the release effective period of the phosphorus element in the ammonium polyphosphate is as long as 140-150 days, which is 2.3-2.7 times of that of the common ammonium phosphate, and the urea phosphate belongs to a condensate of urea, so that the ammonium polyphosphate is a long-acting nitrogen fertilizer, and the decomposition time of the ammonium polyphosphate is delayed by 30-40 days compared with that of the common urea. According to the invention, the polymerization degree is controlled, and the urease inhibitor and the nitrification inhibitor are added, so that the release period of the phosphorus element and the nitrogen element can be fully used for the whole growth period of crops, the problem that the fertilizer cannot be effectively absorbed due to overlong release period and the fertilizer is deposited in soil due to excessively short release period is avoided, and the utilization rate of the phosphorus element and the nitrogen element is fully improved.
In addition, the proportion of ammonium polyphosphate, urea polyphosphate and ammonium phosphate is proper, the release amount in the early fertilizing period is enough to meet the requirement of rapid growth of crops, and the release rate is almost balanced release, so that the dry matter of the crops is formed, the requirements of the crops in different growth stages are met, and the quality and the yield of the crops are improved.
Thirdly, the invention is not easy to precipitate, can improve the soil performance, and is more beneficial to environmental protection and sustainable agricultural production:
the small molecular group substances in the fully water-soluble chelate lignin have hydroxyl long chains and amino long chains, and contain various functional groups, wherein the hydroxyl long chains have negative charges and can adsorb ions with positive charges, such as ammonium ions, potassium ions, magnesium ions, calcium ions, iron ions, zinc ions and the like; the amino long chain has positive charges, and can adsorb nutrient ions with negative charges, such as nitrate nitrogen fertilizer, phosphate ions, sulfide ions, boron ions and the like. The absorption and utilization capacity of crops to nutrient ions is improved, and meanwhile, antagonism among the nutrient ions is reduced, so that the liquid fertilizer is not easy to precipitate.
In the invention, the complexing micromolecular amino acid can also promote the exchange of various nutrient ions in the soil, promote the activity of various enzymes in the soil, be beneficial to the propagation of beneficial bacterial groups in the soil, and promote the fertility of the soil, balance microbial agents in the soil, improve the permeability of the soil and increase the organic matters of the soil.
The fermented sulfonated straw used in the invention contains lignin, has a three-dimensional network space structure, such as various functional groups including sulfonic acid groups, carboxyl groups, alcoholic hydroxyl groups, phenolic hydroxyl groups and the like, has stronger chelating ability, and further expands chelating site sites of the phosphorylated lignin generated by further reaction, and the potassium fulvate also contains various active groups including carboxyl groups, hydroxyl groups and the like, has oxygen-containing functional groups and structurally has a plurality of organic chelating sites. The coordination groups can carry out chelation reaction with indissolvable trace elements such as calcium, magnesium, sulfur, iron, manganese, molybdenum, copper, zinc, boron and the like necessary for various crops, and can also carry out chelation reaction with phosphorus at other sites, so that the direct contact of the trace elements and the phosphorus elements to cause passivation and inactivation of each other is avoided, and a positive balance effect is achieved, thereby improving the utilization rate of the trace elements and the phosphorus elements for the crops.
In addition, the fermented straw also generates various amino acids, wherein amino acids such as glutamic acid and the like are beneficial to improving the root system development of crops and promoting the formation of crop proteins, and amino acids with hydroxyl groups such as threonine, serine, tyrosine and the like can be further modified by phosphate to generate phosphate, and finally phosphate potassium salt is formed. The potassium phosphate belongs to a crop growth regulator, can improve the survival rate of crops, slowly releases active ingredients of nitrophenol, 4-hydroxycoumarin and triacontanol in vivo after the crop is absorbed, improves the safety of the active ingredients to the crops through a slow release effect, and avoids abnormal growth or physiological injury and other chemical injury of crops, especially sensitive crops, when the growth regulator such as compound sodium nitrophenolate or sodium polynitrophenolate is applied.
In addition, the brown algae oligosaccharide in the components can directly participate in the synthesis of protein in crops, and can also form small molecular functional group compounds with phosphoric acid, ammonia, lignin and biochemical fulvic acid, which is more beneficial to promoting the growth of crop root systems, activating crop self-defense systems and regulating the growth of crops, so that the absorption and utilization rate of the brown algae oligosaccharide by crops in the invention is higher, the using amount of the brown algae oligosaccharide is reduced by hundreds of times, and the using amount is reduced to about 0.3 per mill from 2-4% of the common using amount.
In summary, the polymeric phosphorus-containing stable synergistic liquid fertilizer prepared by the method has comprehensive nutrition components and synergistic effect among all the components, prolongs the effective release period of nitrogen and phosphorus, improves the absorption and utilization efficiency of various effective components in the fertilizer, improves the quality of crops, meets the requirements of the nutrition components of the whole growth cycle of the crops, fertilizes once, generates various effects and has sufficient duration, meanwhile, the raw materials used by the method have low price, the technical process does not use steam and fuel, the equipment utilization rate is high, the waste gas production amount is small, the productivity is reduced to the greatest extent, the purposes of energy conservation and emission reduction are achieved, and when the method is applied, the soil performance, the fertility and the requirements of environmental protection and sustainable agriculture are also improved.
Drawings
FIG. 1 is a reaction process flow diagram of the present invention.
Detailed Description
The invention provides a preparation method of a synergistic liquid fertilizer containing polymerized phosphorus and the fertilizer, and the technical scheme in the embodiment of the invention is clearly and completely described below, and obviously, the described embodiment is only a part of embodiments of the invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The reaction flow can be seen in the attached figure 1, and the specific operation steps are as follows:
a) Quantitatively conveying liquid phosphoric acid into the first-stage reaction kettle, and adding liquid brown algae oligosaccharide according to the formula requirement.
Compared with pure phosphoric acid, the liquid phosphoric acid selected in the embodiment has better fluidity, is not easy to cause pipeline blockage and equipment scaling, can improve the production efficiency, can directly participate in the synthesis of protein in crops, increases the disease resistance, drought resistance and cold resistance of crops, is favorable for the formation of dry matters of the crops, and further improves the quality of the crops.
B) Adding 30% -60% of catalyst and urea into the first-stage reaction kettle, under the action of catalyst, the material in the first-stage reaction kettle can produce polymerized urea phosphate liquid, and adding chemical reaction control agent to stop reaction.
The catalyst and the chemical reaction control agent selected by the preparation method are mostly strong alkali, so that the catalytic efficiency is higher, the use amount of the catalyst and the reaction control agent is reduced, ammonia dissipation in the reaction process can be reduced, air pollution is reduced, and the effects of energy conservation and emission reduction are achieved.
C) Ammonia water is conveyed into the first-stage reaction kettle, and brown algae oligosaccharide, a urease inhibitor of a nitrogen fertilizer and a nitrification inhibitor of the nitrogen fertilizer are added according to the formula requirement to prepare the liquid with the nitrogen content of 30% -50%.
The added nitrogen fertilizer urease inhibitor can prolong the urea decomposition time by 15-25 days, reduce the volatilization of ammonia by more than about 30%, prolong the time for converting the ammonium nitrogen fertilizer into the nitrate nitrogen fertilizer by 30-45 days, and prolong the release time of the nitrogen fertilizer to more than 100 days by using the nitrogen fertilizer urease inhibitor and the nitrate nitrogen fertilizer simultaneously, thereby reaching the release period of common urea in soil by more than 1.6 times.
D) Adding the rest catalyst into the liquid to make the liquid of the polyphosphoric acid urea and ammonia water in the first-stage reaction kettle undergo secondary polymerization reaction to prepare ammonium polyphosphate, ammonium phosphate and mixed solution of polyphosphoric acid urea, adding a chemical reaction control agent to stop the reaction, wherein nitrogen fertilizer in ammonium phosphate in the mixed solution mainly enters soil in the form of ammonium ions and can be directly absorbed by crops, while polyphosphoric acid urea belongs to a condensate of urea, is a long-acting nitrogen fertilizer, and compared with common urea, the decomposition time of the nitrogen fertilizer is prolonged by 30-40 days, and the proportion of various nitrogen fertilizers in the embodiment is proper, so that the requirement of different growth stages of crops on nitrogen elements is also met.
E) Conveying the mixed solution into a secondary reaction kettle, adding straw powder with 200 meshes of granularity subjected to sulfonation after fermentation, and introducing 10-20L of SO 3 Slowly dripping 5-10L of formaldehyde solution with the concentration of 35-40%, stirring for 2-4 hours after dripping is finished to generate phosphorylated lignin, and performing chelation reaction at normal temperature to form a second mixed solution containing chelated lignin and various amino acids.
The straw fertilizer has the advantages of rich organic matter content, balanced nitrogen, phosphorus and potassium nutrients, trace elements and various amino acids, irreplaceable advantages in agricultural production, solid state, easy crushing, ammonia odor, inconvenience in storage and use, insufficient nitrogen, phosphorus and potassium nutrients for the whole growth period of crops, full utilization of rich nutrients in the sulfonated straw powder after fermentation, and utilization of SO (sulfur-doped oxygen) introduction 3 When the method is used, rapid heat release occurs locally, so that lignin in the straw powder, ammonium phosphate and urea phosphate in the first mixed solution generate lignin sulfonate under the action of formaldehyde, and further generate phosphorylated lignin, wherein the phosphorylated lignin can prevent phosphoric acid from depositing in soil, and further enlarge chelating sites of lignin. The reaction process does not need integral heating, so that not only can the energy be saved, but also the decomposition of the polyphosphoric acid urea can be effectively prevented. The above process can react with sulfonated lignin to produce phosphorylated lignin by using ammonium phosphate and urea phosphate in the first mixed solution without adding additional raw materials required for preparing phosphorylated lignin, and simultaneously adding SO 3 The sulfur element needed by the growth of crops is also supplemented, and the nutrition components of the liquid fertilizer are further enriched.
F) Adding biochemical potassium fulvate into the mixed solution to carry out complex reaction to form a mixed solution containing various polymer amino acids, phosphate potassium salt and micromolecular compounds of fulvic acid, further enriching the components of the liquid fertilizer and increasing the content of the growth regulating substances.
The biochemical potassium fulvate has high content of total amino acid, carboxyl, hydroxyl and other active groups, oxygen-containing functional groups, and a plurality of organic chelating sites and complexing sites exist structurally. The coordination groups can carry out complex reaction with trace elements necessary for the growth of various crops such as calcium, magnesium, sulfur, iron, zinc, boron and the like, and can also carry out complex reaction with phosphorus on other sites, thereby forming a carrier taking biochemical fulvic acid molecules as an intermediate, and avoiding passivation and inactivation of the trace elements and the phosphorus elements caused by direct contact.
Furthermore, amino acids containing hydroxyl groups, such as threonine, serine, tyrosine and the like, generated by straw fermentation can be further modified by phosphate to generate phosphate, and finally phosphate potassium salt is formed, wherein the phosphate potassium salt belongs to a crop growth regulator, so that the survival rate of crops can be improved.
G) And adding potassium chloride or potassium sulfate into the mixed solution according to the requirements of a fertilizing area and crop types.
H) And (3) conveying the mixed solution into a buffer tank, adding a suspending agent, stirring and mixing to obtain a suspended liquid fertilizer, and adding an acid-base regulator according to the soil property of a fertilizing area and the needs of crops to adjust the pH value.
J) The liquid fertilizer is fully stirred and mixed, then is conveyed into an automatic liquid packaging machine for packaging, and a finished product is obtained after inspection.
The foregoing description is directed to the preferred embodiment of the present invention, but the embodiment is not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
The experimental locations and experimental dates of the following specific examples are shown in table 1.
Table 1: experiment field place and experiment date
Examples 1-3 provided three sets of liquid fertilizers of the present invention in different raw and adjuvant ratios, tested respectively in different crops, different properties of soil and different growing seasons, to verify the general applicability of the present invention.
Example 1
The preparation formula is a polymerized liquid fertilizer with 160g/L of nitrogen element and 420g/L of phosphorus element, and no additional potassium sulfate or potassium chloride powder is added.
The raw materials and the auxiliary materials are as follows: 80kg of granular urea, 500kg of concentrated liquid phosphoric acid containing phosphorus pentoxide 60%, 420kg of nitrogen-containing 30% ammonia water, 20kg of fermented sulfonated straw fine powder and SO 3 10L of gas, 5L of formaldehyde solution, 0.8kg of catalyst and 0.3kg of brown alginate oligosaccharides; 3kg of biochemical potassium fulvate, 1kg of urease inhibitor, 1kg of nitrification inhibitor, 0.5kg of chemical reaction control agent and 3kg of pH value regulator.
In the preparation process, the catalyst is added for the first time in the polymerization reaction to be 30% of the total catalyst dosage, and the rest catalyst is added for the second time to obtain the liquid fertilizer, and compared with the common granular fertilizer, the liquid fertilizer is applied to northeast corn, soybean, south China rice and China summer corn in comparison, and the specific experimental results are shown in table 2.
Example 2
The preparation formula is a polymerized liquid fertilizer with 168g/L of nitrogen element, 168g/L of phosphorus element and 168g/L of potassium element.
The raw materials and the auxiliary materials are as follows: 140kg of granular urea, 240kg of concentrated liquid phosphoric acid containing phosphorus pentoxide 60%, 280kg of nitrogen-containing 30% ammonia water, 270kg of potassium chloride powder, 70kg of water, 20kg of fermented sulfonated straw fine powder and SO 3 15L of gas, 8L of formaldehyde solution, 1kg of catalyst and 0.3kg of brown alginate oligosaccharides; 3kg of biochemical potassium fulvate, 1kg of urease inhibitor, 1kg of nitrification inhibitor, 0.8kg of chemical reaction control agent and 3kg of pH value regulator.
In the preparation process, the catalyst is added for the first time in the polymerization reaction to be 40% of the total catalyst dosage, and the rest catalyst is added for the second time to obtain the liquid fertilizer, and compared with the common granular fertilizer, the liquid fertilizer is applied to northeast corn, soybean, south China rice and China summer corn in comparison, and the specific experimental results are shown in table 2.
Example 3
The preparation formula is a polymerized liquid fertilizer with the nitrogen content of 240g/L, the phosphorus content of 100g/L and the potassium content of 120 g/L.
The raw materials and the auxiliary materials are as follows: 290kg of granular urea, 230kg of concentrated liquid phosphoric acid containing phosphorus pentoxide 60%, 290kg of ammonia water containing 30% of nitrogen, 190kg of potassium chloride powder, 20kg of fermented sulfonated straw fine powder and SO 3 20L of gas, 10L of formaldehyde solution, 1.2kg of catalyst and 0.3kg of brown alginate oligosaccharides; 3kg of biochemical potassium fulvate, 1kg of urease inhibitor, 1kg of nitrification inhibitor, 1kg of chemical reaction control agent and 2kg of pH value regulator.
In the preparation process, the catalyst is added for the first time in the polymerization reaction, which is 60% of the total catalyst dosage, and the rest catalyst is added for the second time, so as to obtain the liquid fertilizer, wherein the formula is a main formula of one-time fertilization of corn, and compared with the common granular fertilizer, the liquid fertilizer is applied in northeast corn and summer corn in China, and the specific experimental results are shown in Table 2.
Table 2: experimental results of fertilizer effect of liquid fertilizer prepared from different raw materials and auxiliary materials
The experiment result shows that the invention is implemented on various crops, the whole growth period of the crops does not need additional fertilizer or other fertilizers, the yield increase effect can be achieved under the condition of reducing the fertilization amount by 30% -40% per mu, and the yield increase of northeast corn and China-summer corn is the highest and can reach more than 15%. In addition, the invention is implemented in areas with different properties of soil and large difference of seasons, and can achieve the effects of losing weight and increasing yield.
Examples 4-8 provided five sets of liquid fertilizers of the present invention under different compositions, tested on two crops, northeast corn and south-China rice, respectively, to verify the reasonable range of the formulation of the present invention, the weight was insufficient to purify the water in parts by weight in the following examples.
Example 4
The components are as follows: 35 parts of urea polyphosphate, 55 parts of ammonium polyphosphate, 5 parts of ammonium phosphate, 0.1 part of potassium chloride or potassium sulfate, 1 part of ammonium sulfate, 0.2 part of fulvic acid, 0.1 part of chelate lignin, 0.05 part of complex polymeric amino acid small molecule compound, 0.01 part of small molecule functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.05 part of urease inhibitor, 0.15 part of nitrification inhibitor, 0.01 part of brown algae oligosaccharide and 5 parts of purified water.
Example 5
The components are as follows: 30 parts of urea polyphosphate, 40 parts of ammonium polyphosphate, 5 parts of ammonium phosphate, 25 parts of potassium chloride or potassium sulfate, 1.5 parts of ammonium sulfate, 0.15 part of fulvic acid, 0.2 part of chelate lignin, 0.1 part of complex polymeric amino acid small molecule compound, 0.02 part of small molecule functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.15 part of urease inhibitor, 0.05 part of nitrification inhibitor and 0.03 part of brown algae oligosaccharide.
Example 6
The components are as follows: 35 parts of urea polyphosphate, 40 parts of ammonium polyphosphate, 10 parts of ammonium phosphate, 15 parts of potassium chloride or potassium sulfate, 2 parts of ammonium sulfate, 0.2 part of fulvic acid, 0.15 part of chelate lignin, 0.02 part of complex polymeric amino acid micromolecule compound, 0.02 part of micromolecule functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.1 part of urease inhibitor, 0.1 part of nitrification inhibitor and 0.05 part of brown algae oligosaccharide.
Example 7
The components are as follows: 20 parts of urea polyphosphate, 40 parts of ammonium polyphosphate, 10 parts of ammonium phosphate, 30 parts of potassium chloride or potassium sulfate, 1.5 parts of ammonium sulfate, 0.1 part of fulvic acid, 0.15 part of chelate lignin, 0.05 part of complex polymeric amino acid small molecule compound, 0.01 part of small molecule functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.05 part of urease inhibitor, 0.05 part of nitrification inhibitor and 0.01 part of brown algae oligosaccharide.
Example 8
The components are as follows: 40 parts of urea polyphosphate, 35 parts of ammonium polyphosphate, 8 parts of ammonium phosphate, 15 parts of potassium chloride or potassium sulfate, 1 part of ammonium sulfate, 0.1 part of fulvic acid, 0.2 part of chelate lignin, 0.1 part of complex polymeric amino acid micromolecule compound, 0.01 part of micromolecule functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharide and biochemical fulvic acid, 0.1 part of urease inhibitor, 0.1 part of nitrification inhibitor, 0.03 part of brown algae oligosaccharide and 2 parts of purified water.
The specific experimental results are shown in the following table:
table 3: comparison table of experimental results under different component ratios
As can be seen from the table, when experiments are carried out on two crops of northeast corn and south China rice, the liquid fertilizer of the invention with different component ratios is applied, and compared with a control group applying common granular fertilizer, the liquid fertilizer can increase the yield by more than 10 percent under the condition that the fertilizing amount is reduced by more than 36 percent, wherein the yield of northeast corn is 16.5 percent, and the yield of south China rice is 11.1 percent.
In example 2, the soil after planting northeast corn and south China rice was sampled, and the pH value, organic matters and heavy metals (cadmium and lead) in the soil were detected, and compared with a control group, wherein the organic matters were detected by a potassium dichromate capacity method, and the heavy metals (cadmium and lead) were detected by a method described in "soil quality lead, cadmium determination graphite furnace atomic absorption spectrophotometry" of GB/T17141-1997.
The specific results are as follows:
table 4: comparison table of soil property test results after cultivation
| Sample species | pH | Organic matter (g/kg) | Cadmium (mg/kg) | Lead (mg/kg) |
| Northeast corn | 6.8 | 56 | 0.3 | 120 |
| Control group 2 (Songhua river farm) | 7.0 | 43 | 0.3 | 130 |
| South China rice | 6.6 | 45 | 0.6 | 140 |
| Control group 2 (little harbor village) | 6.9 | 35 | 0.6 | 130 |
The experimental results show that after the soil with the liquid fertilizer applied to different areas is cultivated and harvested, the organic matter content in the soil is higher than that in a control group, the cadmium content is not obviously different from that in the control group, but the lead content is lower than that in the control group, so that the liquid fertilizer also has the effect of increasing the fertility, is beneficial to improving the soil property after long-term use, and meets the sustainable development requirement of agriculture.
Claims (7)
1. The preparation process of synergistic liquid fertilizer with stable polymerized phosphorus includes the polymerization of liquid phosphoric acid and urea to produce liquid urea polyphosphate, the secondary polymerization of the liquid urea polyphosphate and ammonia water to obtain the first mixed liquid of ammonium polyphosphate, ammonium phosphate and urea polyphosphate, pH regulation to 6.5-7.5 and packing to obtain the final product, and features that after the first mixed liquid is produced and before pH regulation, sulfonated stalk powder is added into the first mixed liquid, and SO is introduced 3 And dropwise adding formaldehyde solution to generate phosphorylated lignin, performing chelation reaction at normal temperature to form a second mixed solution containing chelated lignin and amino acid, adding suspending agent, and fully stirring and mixing.
2. The method for preparing the synergistic liquid fertilizer containing polymerized phosphorus stability according to claim 1, wherein after the second mixed solution is generated and before the suspending agent is added, the biochemical potassium fulvate is added into the second mixed solution to carry out complexation reaction, so as to form a third mixed solution containing the micromolecular compound of polymerized amino acid, potassium phosphate and fulvic acid.
3. The method for preparing a stable synergistic liquid fertilizer containing polymeric phosphorus as claimed in claim 1, wherein the particle size of the straw powder is 200 mesh.
4. The method for preparing the phosphorus-containing stable synergistic liquid fertilizer according to claim 1, wherein the polymerization reaction and the secondary polymerization reaction are carried out under the action of a catalyst, the catalyst is one or a combination of sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide and sodium carbonate, and the dosage of the catalyst is 0.8-1.2 per mill.
5. The method for preparing the synergistic liquid fertilizer containing polymerized phosphorus stability according to claim 1, wherein in the polymerization reaction and the secondary polymerization reaction, a chemical reaction control agent is used for controlling the reaction progress, the polymerization degree of ammonium polyphosphate is controlled to be 9% -15%, and the dosage of the chemical reaction control agent is 0.4-1.0%.
6. The method for preparing the polymeric phosphorus-containing stable synergistic liquid fertilizer according to claim 1, wherein the concentration of the ammonia water is 30% -40%, the liquid phosphoric acid is 45% -60% concentrated liquid phosphoric acid containing phosphorus pentoxide, brown algae oligosaccharide, urease inhibitor, nitrification inhibitor, potassium chloride or potassium sulfate are added in the preparation process, the urease inhibitor adopts one or a combination of thiourea and methylphosphoric triamide, and the nitrification inhibitor adopts one or a combination of dicyandiamide, 2-chloro-picoline and hydroquinone.
7. The synergistic liquid fertilizer containing polymerized phosphorus stability is prepared by the preparation method of any one of claims 1-6, and is characterized by comprising, by weight, 20-35 parts of urea polyphosphate, 35-55 parts of ammonium polyphosphate, 5-10 parts of ammonium phosphate, 0.1-30 parts of potassium chloride or potassium sulfate, 1-2 parts of ammonium sulfate, 0.1-0.2 part of fulvic acid, 0.1-0.2 part of chelate lignin, 0.02-0.1 part of complex polymerized amino acid small molecular compound, 0.01-0.02 part of small molecular functional group compound formed by phosphoric acid, ammonia, lignin, brown algae oligosaccharides and biochemical fulvic acid, 0.05-0.15 part of urease inhibitor, 0.05-0.15 part of nitrification inhibitor and 0.01-0.05 part of brown algae oligosaccharides.
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| CN117209338A (en) * | 2023-11-07 | 2023-12-12 | 四川大学 | Ammonium polyphosphate type organic fertilizer containing amino acid and preparation method thereof |
| CN117209338B (en) * | 2023-11-07 | 2024-01-02 | 四川大学 | Ammonium polyphosphate type organic fertilizer containing amino acid and preparation method thereof |
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