WO2019190104A1 - 용출 제어형 비료 - Google Patents
용출 제어형 비료 Download PDFInfo
- Publication number
- WO2019190104A1 WO2019190104A1 PCT/KR2019/003121 KR2019003121W WO2019190104A1 WO 2019190104 A1 WO2019190104 A1 WO 2019190104A1 KR 2019003121 W KR2019003121 W KR 2019003121W WO 2019190104 A1 WO2019190104 A1 WO 2019190104A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fertilizer
- meth
- inorganic fine
- fine particles
- weight
- Prior art date
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 92
- 238000013270 controlled release Methods 0.000 title abstract description 5
- 239000002775 capsule Substances 0.000 claims abstract description 36
- -1 acrylate compound Chemical class 0.000 claims abstract description 33
- 239000011230 binding agent Substances 0.000 claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 18
- 229920000098 polyolefin Polymers 0.000 claims abstract description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010419 fine particle Substances 0.000 claims description 43
- 238000004090 dissolution Methods 0.000 claims description 34
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 238000010828 elution Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- 230000001699 photocatalysis Effects 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011164 primary particle Substances 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 claims description 2
- VFFFESPCCPXZOQ-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;oxirane Chemical compound C1CO1.OCC(CO)(CO)CO VFFFESPCCPXZOQ-UHFFFAOYSA-N 0.000 claims description 2
- MTPIZGPBYCHTGQ-UHFFFAOYSA-N 2-[2,2-bis(2-prop-2-enoyloxyethoxymethyl)butoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCC(CC)(COCCOC(=O)C=C)COCCOC(=O)C=C MTPIZGPBYCHTGQ-UHFFFAOYSA-N 0.000 claims description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 2
- FDSUVTROAWLVJA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)COCC(CO)(CO)CO FDSUVTROAWLVJA-UHFFFAOYSA-N 0.000 claims description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 2
- XRMBQHTWUBGQDN-UHFFFAOYSA-N [2-[2,2-bis(prop-2-enoyloxymethyl)butoxymethyl]-2-(prop-2-enoyloxymethyl)butyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(CC)COCC(CC)(COC(=O)C=C)COC(=O)C=C XRMBQHTWUBGQDN-UHFFFAOYSA-N 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- 229920001427 mPEG Polymers 0.000 claims description 2
- 229920001083 polybutene Polymers 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- BXRSLDLTQUKAEX-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;propane Chemical compound CCC.CCC(CO)(CO)CO BXRSLDLTQUKAEX-UHFFFAOYSA-N 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000011941 photocatalyst Substances 0.000 abstract description 20
- 239000011859 microparticle Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 18
- 239000006185 dispersion Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 238000006303 photolysis reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 230000015843 photosynthesis, light reaction Effects 0.000 description 8
- 238000001782 photodegradation Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229950011008 tetrachloroethylene Drugs 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229920002988 biodegradable polymer Polymers 0.000 description 2
- 239000004621 biodegradable polymer Substances 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 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
- 230000015556 catabolic process Effects 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000618 nitrogen fertilizer Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- KNIKDPRISVIPBU-UHFFFAOYSA-N 1,2-dichloro-4-[isocyano-(4-methylphenyl)sulfonylmethyl]benzene Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C([N+]#[C-])C1=CC=C(Cl)C(Cl)=C1 KNIKDPRISVIPBU-UHFFFAOYSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- NCNNNERURUGJAB-UHFFFAOYSA-N 3-[2,2-bis(3-prop-2-enoyloxypropoxymethyl)butoxy]propyl prop-2-enoate Chemical compound C=CC(=O)OCCCOCC(CC)(COCCCOC(=O)C=C)COCCCOC(=O)C=C NCNNNERURUGJAB-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241000816129 Alcha Species 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 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
- 238000002296 dynamic light scattering Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 229940116007 ferrous phosphate Drugs 0.000 description 1
- 229960001781 ferrous sulfate Drugs 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000155 iron(II) phosphate Inorganic materials 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- SDEKDNPYZOERBP-UHFFFAOYSA-H iron(ii) phosphate Chemical compound [Fe+2].[Fe+2].[Fe+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O SDEKDNPYZOERBP-UHFFFAOYSA-H 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/012—Additives activating the degradation of the macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
- B01J2235/30—Scanning electron microscopy; Transmission electron microscopy
Definitions
- the present invention relates to a dissolution-controlled fertilizer, and more particularly, to a dissolution-controlled fertilizer that has a high stability against moisture and a rigid structure, can easily control the dissolution period of the fertilizer, and can realize excellent photolysis efficiency.
- CRF control led release fertilizers
- Conventional fertilizers sprayed with water or sprayed in powder form usually do not last more than 20 days once sprayed. This is because crops are difficult to absorb fertilizer components because they have been washed out of the rain or penetrated deep into the ground.
- Dissolution-controlled fertilizers reduce the rate of release of fertilizer components into polymer capsules to compensate for these common fertilizer shortcomings, allowing them to be released for long periods of time.
- Polymer capsules are made of olefin resins, urethane resins, latex, acrylic resins, etc., and after water vapor penetrates through the capsule, the fertilizer component melts and is released through the capsule by the osmotic principle.
- the rate of penetration of the water and fertilizer components will depend on the composition and thickness of the capsule. This can be used to control the rate at which fertilizer components come out.
- the duration of release of the fertilizer component from the capsule can be controlled from a minimum of 30 days to a maximum of 2 years. However, after release of the fertilizer, the capsule polymer does not decompose and 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- biodegradable polymers have a high moisture permeability and are decomposed by microorganisms in one to six months, fertilizer components are at least 2 months old. It was not suitable for use in dissolution controlled fertilizers that had to be released over the years.
- the present invention is to provide a dissolution control fertilizer having a high stability against moisture and a robust structure and can easily control the dissolution period of the fertilizer and can implement excellent photolysis efficiency.
- a binder resin including a polyolefin and an ethylene vinyl acetate copolymer; And a photocatalytic complex in which a (meth) acrylate compound including an alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of an aggregate of inorganic fine particles; and surrounded by the photodegradable capsule.
- An elution controlled fertilizer is provided, including the fertilizer contained in the space.
- a binder resin including a polyolefin and ethylene vinyl acetate copolymer; And a photocatalytic complex in which a (meth) acrylate compound including an alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of an aggregate of inorganic fine particles; and surrounded by the photodegradable capsule.
- Dissolution controlled fertilizers may be provided, including fertilizers contained in the space.
- the present inventors found that the elution controlled fertilizer formed with a photodegradable capsule containing the photocatalytic composite as described above together with a binder resin containing a polyolefin and ethylene vinyl acetate copolymer, has high stability and robustness against moisture. 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- the above-described dissolution control fertilizer may be characterized by uniformly dispersing the photocatalyst composite in the above-mentioned binder resin. Specifically, containing the alkylene glycol repeating unit having 1 to 10 carbon atoms
- the inorganic fine particles can be uniformly dispersed in the manufacturing process of the dissolution-controlled fertilizer or the dissolution-controlled fertilizer.
- Aggregates of inorganic fine particles may have a particle size that is not so large.
- the aggregates of the inorganic fine particles are uniformly dispersed in the binder resin while not having a large particle size, so that the photodegradation reaction occurs locally when the photodegradable capsule is exposed to light, thereby preventing the photodegradation efficiency from deteriorating. It is possible to prevent the photodegradable capsules from remaining in the soil.
- the dissolution-controlled fertilizer may be characterized in that the (meth) acrylate compound including the alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of the aggregate of the inorganic fine particles. That is, as the (meth) acrylate compound including the alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of the aggregate of the inorganic fine particles, growth of the aggregate of the inorganic fine particles can be controlled.
- the (meth) acrylate compound has high compatibility with the binder resin to allow the photocatalyst composite to be uniformly distributed in the binder resin.
- the dissolution control fertilizer can implement excellent photolysis efficiency. More specifically, the decomposition rate of the binder resin derived from the weight change of the photodegradable capsule may be 35% or more, or 40% or more when the light having a wavelength of 30011111 to 800ä is irradiated with light of 400 for 224 hours.
- the inorganic fine particles may serve as a photocatalyst.
- Elution-controlled fertilizer of the embodiment to solve the problem that the photodegradable capsule remains in the soil In order to uniformly disperse the photocatalyst composite in the binder resin.
- the fertilizer Since the photocatalytic complex acts as a catalyst only while receiving light, the fertilizer is gradually released during the elution period while the photodegradable capsule is not decomposed while the fertilizer is released in the light-blocked soil. After the fertilizer is eluted, the dissolution control fertilizer is exposed to the topsoil by plowing, etc., so that the photodegradable capsule may be decomposed by light.
- the inorganic fine particles may include primary particles having a cross-sectional diameter of 5 to 50 nm.
- the primary particles and the cross-sectional diameter of the inorganic fine particles can be confirmed through a conventionally known method, for example, confirmation through a TEM photograph or BET measurement.
- the cross-sectional diameter of the primary particles included in the inorganic fine particles is too small, the degree of crystallinity is lowered, the photocatalyst efficiency may be lowered.
- the cross-sectional diameter of the primary particles included in the inorganic fine particles is too large, the specific surface area of the photocatalyst particles may be lowered, thereby lowering the photocatalytic efficiency.
- the aggregate of the inorganic fine particles contained in the elution-controlled fertilizer of the embodiment may have a particle size that is not very large, specifically, the aggregate of the inorganic fine particles has a cross-sectional diameter of 1 or less, or a cross-sectional diameter of 0.05 m to 0.5 Can have
- the cross-sectional diameters and diameters of the aggregates of the inorganic fine particles can be determined through a conventionally known method, for example, SEM or TEM mi crotome.
- the cross-sectional diameter or the overall size of the aggregate of the inorganic fine particles is too large, a local photolysis reaction may occur in the photodegradable capsule or the efficiency of the photodegradation reaction may deteriorate. Residue may be left without degradation.
- the binder resin may be a main material for forming the outer structure of the photodegradable capsule, and as described above, the binder resin may include a polyolefin and an ethylene vinyl acetate copolymer. 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- polystyrene resin examples include polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene, polystyrene, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene
- the ethylene vinyl acetate copolymer included in the binder resin is also not particularly limited, but for example, an ethylene vinyl acetate copolymer including 1 wt% to 45 wt% of vinyl acetate repeating units may be used.
- the ethylene vinyl acetate copolymer By 190 ° and [2. a melt index measured at a load of 0.5 1613 ⁇ 4 I / 101. 11 to arch 5.0 / 10
- the binder resin may include a polyolefin: ethylene vinyl acetate copolymer in a weight ratio of 1: 1 to 6: 1. can do.
- the binder resin contains polyolefin resin equal to or greater than that of ethylene vinyl acetate copolymer, the dissolution rate of the fertilizer can be more easily adjusted.
- the photocatalyst composite may have a structure in which a (meth) acrylate compound including an alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of an aggregate of inorganic fine particles.
- the aggregate of the inorganic fine particles may serve as a photocatalyst, and when the dissolution-controlled fertilizer is exposed to the surface of the soil or the like, the photodegradation reaction may be started in the photodegradable capsule.
- the (meth) acrylate compound is bonded to the surface or inside of the aggregate of the inorganic fine particles, thereby preventing the aggregates of the inorganic fine particles from growing excessively and having higher compatibility with the binder resin.
- the photocatalyst composite is uniformly distributed in the binder resin. 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- the (meth) acrylate compound containing an alkylene glycol repeating unit having 1 to 10 carbon atoms includes 1) (meth) acrylate and di (meth) having a polyalkylene glycol having a number average molecular weight of 100 to 2 000 Acrylates or esters thereof; 2) tri- to 8-functional (meth) acrylates or esters thereof containing alkylene glycol repeating units having 1 to 10 carbon atoms; Or a mixture or copolymer of two or more thereof.
- the (meth) acrylate, di (meth) acrylate or esters thereof in which the polyalkylene glycol having a number average molecular weight of 100 to 2,000 is bound is a poly (ethylene glycol) (meth) acrylate.
- poly (ethylene glycol) methyl ether (meth) acrylate is a poly (ethylene glycol) (meth) acrylate.
- the tri- to 8-functional (meth) acrylate or ester thereof containing the alkylene glycol repeating unit having 1 to 10 carbon atoms is trimethylolpropane triacrylate, trimethylol propane ethoxylate triacrylate, trimethylol Propane propoxylate triacrylate, ditrimethylolpropane tetraacrylate, pentaerythritol tetraacrylate, pentaerythritol ethoxylate tetraacrylate, dipentaerythritol pentaacrylate or dipentaerythritol nuxaacrylateyl Can be.
- the weight ratio of the aggregate of the inorganic fine particles and the (meth) acrylate compound containing the alkylene glycol repeating unit having 1 to 10 carbon atoms in the photocatalytic composite is not limited to a large amount, and the organic solvent may be used according to the characteristics of the elution control fertilizer. The weight ratio and the like can also be adjusted by adjusting the amount to be dispersed in a solvent.
- the photocatalyst composite may include 1 to 500 parts by weight of (meth) acrylate compound including the alkylene glycol repeating unit having 1 to 10 carbon atoms, or 20 to 200 parts by weight, relative to 100 parts by weight of the aggregate of the inorganic fine particles. May include On the other hand, it may comprise 0.1 to 8 parts by weight of the aggregate of the inorganic fine particles relative to 100 parts by weight of the binder resin. 2019/190104 1 »(1 ⁇ 1 ⁇ 2019/003121
- the efficiency of the photodegradation reaction may be lowered, and the photodegradable capsules may not be decomposed due to insufficient photodegradation, and residues may remain. Can be.
- the content of aggregates of the inorganic fine particles in the photodegradable capsules is too large compared to the binder resin, the aggregates of the inorganic fine particles may grow significantly, so that a local photolysis reaction occurs or photolysis in the photodegradable capsules. The efficiency of the reaction may be lowered, leaving the residue without leaving the entire photodegradable capsule.
- the dissolution control fertilizer may further comprise a filler dispersed in the binder resin.
- the type of the filler is not particularly limited, for example, the filler may include talc, bentonite, ocher, diatomaceous earth, silica, aluminosilicate, kaolite, starch, carbon, or a mixture of two or more thereof.
- the content of the filler is not particularly limited, but in view of the mechanical properties or structural stability of the photodegradable capsule, the host control fertilizer may include 25 to 75% by weight of the filler relative to the total weight of the photodegradable capsule.
- the fertilizer can be various known fertilizers, for example urea or complex fertilizers.
- the fertilizer may be a granular core fertilizer having a granular form in order to be easily included in the photodegradable capsule.
- the specific kind of the fertilizer is not limited, and conventionally known fertilizers can be used.
- Preferred examples include nitrogen-containing organic compounds such as urea, aldehyde condensation urea, isobutylaldehyde condensation urea, formaldehyde condensation urea, guanylurea sulfate, and oxamide, ammonium nitrate, ammonium dihydrogen phosphate, diammonium phosphate , Ammonium and nitrate compounds such as ammonium sulfate, ammonium chloride, and sodium nitrate; potassium salts such as potassium nitrate, potassium phosphate, potassium sulfate, and potassium chloride; calcium salts such as calcium phosphate, calcium sulfate, calcium nitrate, and calcium chloride; Magnesium, magnesium chloride, magnesium phosphate, and Magnesium salts such as magnesium sulfate, ferrous nitrate, ferric nitrate, ferrous
- the content of the fertilizer in the elution-controlled fertilizer is not largely limited, and may include, for example, 200 to 3000 parts by weight of the fertilizer relative to 100 parts by weight of the photodegradable capsule.
- the photocatalyst complex may have a unique degree of dispersion in the photodegradable capsule. More specifically, the photocatalytic composite may be prepared by dispersing a (meth) acrylate compound including the alkylene glycol repeating unit having 1 to 10 carbon atoms in an organic solvent.
- Ultrasonic, high shear mixer or bead mill in the state of dispersing the (meth) acrylate compound containing the inorganic fine particles and the alkylene glycol repeating unit having 1 to 10 carbon atoms in an organic solvent. ll) and the like to deliver a strong energy, the (meth) acrylate compound containing the alkylene glycol repeat unit having 1 to 10 carbon atoms can be bonded to the surface or inside of the aggregate of the inorganic fine particles.
- the photocatalyst composite thus prepared may be dispersed very uniformly in the binder resin, and thus the decomposition efficiency of the photocatalyst may be significantly increased.
- the eluting chair-type fertilizer may further include a component contained in the known dissolution control fertilizer.
- such components include, but are not limited to, amphipathic polymers.
- the dissolution control fertilizer can be provided through a variety of manufacturing methods, for example, dispersing inorganic fine particles in an organic solvent to which the ethylene vinyl acetate copolymer is added to prepare a dispersion of the photocatalyst composite; Preparing a coating composition by mixing a polyolefin, an ethylene vinyl acetate copolymer, a dispersion of the photocatalyst composite, and optionally a filler; And coating the surface of the granular fertilizer core with the coating composition. 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- organic solvent examples include tetrachloroethylene ( ⁇ , cyclonuxene ((: ⁇ )), dichloromethane (1X1), or 1,2,4-trichloro) Can be used
- the dispersion may be prepared using strong energy such as ultrasonic wave (3011 ⁇ 1011) or bead mill.
- a dispersion liquid having a dispersion particle size of 5 to 1000 11111 with a dispersion particle size of the photocatalyst may be prepared using strong energy such as, for example, ultrasonic wave (3011 ⁇ 1011).
- a dissolution control fertilizer can be provided that has a high stability against moisture and a rigid structure, can easily control the elution period of the fertilizer, and can also implement excellent photolysis efficiency.
- the dissolution control fertilizer may prevent soil contamination by preventing photodegradable capsules or hydrophilic polymers from remaining in the soil.
- Figure 1 schematically shows the photolysis mechanism of the dissolution control fertilizer.
- Table 1 amount of the alkylene described glycolic repeat (meth) acrylate compound 0.43 ⁇ comprising units in the following Table 1 were dissolved in tetrachlorethylene for 02 (alcha of particles with a mean particle size: 21 11111) mixed Then, a shear rate (approximately 20, 000) was applied and the mixture was stirred at high speed for 20 minutes. 2019/190104 1 »(: 1 ⁇ 1 ⁇ 2019/003121
- the coating solution was applied to the nitrogen fertilizer particles using a fluidized bed dryer to prepare an elution control coating fertilizer (Examples 1 to 4).
- Polyethylene ratio ((melt index, 190 ° [, 2. 1613 ⁇ 4 load, sho 3 ⁇ 41 1) 1238): about 8 persons / 101 11, 1) (density): 0.925 ⁇ / ä 3 ], ethylene vinyl acetate copolymer (Melt index, 190 ° (:, 2. 16 ⁇ 3 ⁇ 4 load, Shoen 1) 1238): about 1.8 seedlings / ⁇ ⁇ ,
- the coating liquid was apply
- the coating film was irradiated with an intensity of.
- Examples 3 Ti3 ⁇ 4 z- average dispersed particle size of the dispersion of Comparative Example 2, a dispersion containing the Ti0 2 in the photocatalyst composite was measured using a Dynamic Light Scattering (Marvern Zetasizer Nano ZS90 ). The results are shown in Table 3 below.
- [Table 2] Ti0 2 z-average dispersion particle size As shown in Table 2, the dispersion of the photocatalytic composite of Example 3 is about 300 It is confirmed that the 0 2 particles used having a dispersed particle size are homogeneously dispersed to form aggregates of inorganic fine particles having a relatively small average particle diameter.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201980011666.8A CN111712476B (zh) | 2018-03-28 | 2019-03-18 | 控释肥料 |
US16/964,932 US11332413B2 (en) | 2018-03-28 | 2019-03-18 | Controlled-release fertilizers |
JP2020530948A JP7005098B2 (ja) | 2018-03-28 | 2019-03-18 | 溶出制御型肥料 |
AU2019242998A AU2019242998B2 (en) | 2018-03-28 | 2019-03-18 | Controlled-release fertilizer |
PH12020551122A PH12020551122A1 (en) | 2018-03-28 | 2020-07-24 | Controlled-release fertilizers |
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KR10-2018-0035997 | 2018-03-28 | ||
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KR1020190027740A KR102111607B1 (ko) | 2018-03-28 | 2019-03-11 | 용출 제어형 비료 |
KR10-2019-0027740 | 2019-03-11 |
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KR19990035939A (ko) * | 1995-05-27 | 1999-05-25 | 고토 기치 | 피복 농약 입제, 이의 제조방법 및 용도 |
KR20100110949A (ko) * | 2009-04-06 | 2010-10-14 | 주식회사 동부한농 | 용출제어형 자연분해 묘판처리제 피복비료 |
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KR101410859B1 (ko) * | 2013-10-14 | 2014-07-01 | (주) 포스텍글로벌 | 수중 부상 및 부유가 방지된 피복 입상 비료 및 이의 제조방법 |
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