GB2570860A - Micronutrient formulation for aeriel crop application - Google Patents
Micronutrient formulation for aeriel crop application Download PDFInfo
- Publication number
- GB2570860A GB2570860A GB1720609.5A GB201720609A GB2570860A GB 2570860 A GB2570860 A GB 2570860A GB 201720609 A GB201720609 A GB 201720609A GB 2570860 A GB2570860 A GB 2570860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- spray
- micronutrient
- composition
- composition according
- 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.)
- Granted
Links
- 239000011785 micronutrient Substances 0.000 title claims abstract description 91
- 235000013369 micronutrients Nutrition 0.000 title claims abstract description 91
- 239000000203 mixture Substances 0.000 title claims abstract description 88
- 238000009472 formulation Methods 0.000 title description 8
- 239000003921 oil Substances 0.000 claims abstract description 111
- 235000019198 oils Nutrition 0.000 claims abstract description 111
- 239000007921 spray Substances 0.000 claims abstract description 100
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims abstract description 22
- 239000002480 mineral oil Substances 0.000 claims abstract description 12
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 12
- 235000014698 Brassica juncea var multisecta Nutrition 0.000 claims abstract description 11
- 240000002791 Brassica napus Species 0.000 claims abstract description 11
- 235000006008 Brassica napus var napus Nutrition 0.000 claims abstract description 11
- 235000006618 Brassica rapa subsp oleifera Nutrition 0.000 claims abstract description 11
- 244000188595 Brassica sinapistrum Species 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000008158 vegetable oil Substances 0.000 claims abstract description 8
- 239000011701 zinc Substances 0.000 claims abstract description 8
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 6
- 239000002562 thickening agent Substances 0.000 claims abstract description 6
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 5
- 229910052796 boron Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 235000021317 phosphate Nutrition 0.000 claims abstract description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000002018 neem oil Substances 0.000 claims abstract description 4
- 238000000518 rheometry Methods 0.000 claims abstract description 4
- 150000001642 boronic acid derivatives Chemical class 0.000 claims abstract description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims abstract description 3
- 239000003086 colorant Substances 0.000 claims abstract description 3
- 150000004679 hydroxides Chemical class 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 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 claims abstract description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims abstract description 3
- 239000003549 soybean oil Substances 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 20
- 239000003337 fertilizer Substances 0.000 description 19
- 239000000725 suspension Substances 0.000 description 17
- 238000012360 testing method Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000003905 agrochemical Substances 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 10
- 239000011787 zinc oxide Substances 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 235000015097 nutrients Nutrition 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000003995 emulsifying agent Substances 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- -1 but not limited to Chemical compound 0.000 description 4
- 230000000855 fungicidal effect Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 239000004546 suspension concentrate Substances 0.000 description 4
- 239000004113 Sepiolite Substances 0.000 description 3
- 229910021540 colemanite Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 3
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 3
- 229940112669 cuprous oxide Drugs 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000417 fungicide Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000011656 manganese carbonate Substances 0.000 description 3
- 229940093474 manganese carbonate Drugs 0.000 description 3
- 235000006748 manganese carbonate Nutrition 0.000 description 3
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 3
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 3
- 229910052624 sepiolite Inorganic materials 0.000 description 3
- 235000019355 sepiolite Nutrition 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical class CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 240000008790 Musa x paradisiaca Species 0.000 description 2
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 2
- 231100000674 Phytotoxicity Toxicity 0.000 description 2
- 239000005822 Propiconazole Substances 0.000 description 2
- 235000019486 Sunflower oil Nutrition 0.000 description 2
- 241001377938 Yara Species 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000004359 castor oil Substances 0.000 description 2
- 235000019438 castor oil Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 2
- 150000002314 glycerols Chemical class 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- 235000021388 linseed oil Nutrition 0.000 description 2
- 239000000944 linseed oil Substances 0.000 description 2
- 239000006194 liquid suspension Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000021049 nutrient content Nutrition 0.000 description 2
- 239000007764 o/w emulsion Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- STJLVHWMYQXCPB-UHFFFAOYSA-N propiconazole Chemical compound O1C(CCC)COC1(C=1C(=CC(Cl)=CC=1)Cl)CN1N=CN=C1 STJLVHWMYQXCPB-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002600 sunflower oil Substances 0.000 description 2
- 229910021654 trace metal Inorganic materials 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000004562 water dispersible granule Substances 0.000 description 2
- 241001436679 Adama Species 0.000 description 1
- 244000099147 Ananas comosus Species 0.000 description 1
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 240000007154 Coffea arabica Species 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 240000003133 Elaeis guineensis Species 0.000 description 1
- 235000001950 Elaeis guineensis Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 240000006394 Sorghum bicolor Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- 239000005837 Spiroxamine Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 239000002199 base oil Substances 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
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 235000016213 coffee Nutrition 0.000 description 1
- 235000013353 coffee beverage Nutrition 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000000598 endocrine disruptor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000008821 health effect Effects 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- 239000003501 hydroponics Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 229940059904 light mineral oil Drugs 0.000 description 1
- 235000021073 macronutrients Nutrition 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229920000847 nonoxynol Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010816 packaging waste Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- PUYXTUJWRLOUCW-UHFFFAOYSA-N spiroxamine Chemical compound O1C(CN(CC)CCC)COC11CCC(C(C)(C)C)CC1 PUYXTUJWRLOUCW-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- VLCLHFYFMCKBRP-UHFFFAOYSA-N tricalcium;diborate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-] VLCLHFYFMCKBRP-UHFFFAOYSA-N 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
-
- 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
- C05G5/27—Dispersions, e.g. suspensions or emulsions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to use of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium, for foliar application to crops via spray oil systems. Preferably the micronutrient source is selected from the elements boron, copper, iron, manganese, molybdenum and zinc; and selected from the group of oxides, hydroxides, carbonates, phosphates, oxychlorides, oxysulphates and borates. The oil-based liquid medium may be a vegetable oil. The composition may further comprise a dispersing agent, a rheology agent, thickener, anti-settle agent and/or a colorant material. Also claimed is a spray composition comprising 0.5-5 litres of liquid oil-miscible micronutrient composition and 10-30 litres of spray oil, wherein the spray oil may be selected from mineral oil, rapeseed (canola) oil, neem oil and soybean oil.
Description
Description
Field of the Invention
The present invention relates to the use of oil-based dispersions of plant micronutrients for foliar application to crops via aerial application, compositions comprising spray oils and oil-based dispersions of plant micronutrients, methods for making said compositions comprising spray oils and oil-based dispersions of plant micronutrients, and the use of said spray oils for foliar application to crops via aerial application.
Background of the Invention
Plant nutrients can be divided into three main classes: primary or macronutrients, such as nitrogen (N), phosphorus (P) and potassium (K); secondary nutrients, such as calcium (Ca), magnesium (Mg), sulphur (S), and sodium (Na); and micronutrients, such as boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn). An adequate supply of these nutrients is required for healthy growth of plants, and in modern agriculture it is common practice to apply inorganic fertilizers to crops in order to improve yield and quality. Solid fertilizers such as prills or granules containing one or more of the primary nutrients (N, P and K) represent the most common type of fertilizer and are typically applied to the soil. However, liquid fertilizers are also available and are becoming increasingly important in many markets due to the benefits they offer to the grower in terms of convenience, flexibility, accuracy of delivery, and ease of application. Liquid fertilisers containing primary, secondary and micronutrients, alone or in any combination, are widely available and may be applied using a variety of methods such as spraying onto the soil, injection into the soil, banding, incorporation into the seedbed during drilling; in the irrigation water (via fertigation or hydroponics systems); by spray application onto the foliage of the crop (foliar application); or in seed treatment.
Foliar application is particularly relevant to micronutrient fertilizers as it is an efficient and convenient way to deliver the relatively small quantities of these nutrients, required by the crop. Micronutrient fertilizers, intended for foliar application, are available in a variety of physical forms such as soluble powders or granules, water-dispersible granules, wettable powders, soluble (liquid) concentrates and suspension concentrates. Soluble powders and granules and soluble (liquid) concentrates are typically based on water-soluble inorganic salts of the micronutrients such as sulphates, chlorides and nitrates; or on water-soluble chelates such as EDTA, or on water-soluble complexes such as ligninsulphonates or citrates. Said water-soluble compounds are used to produce aqueous compositions comprising said water-soluble compounds.
Water-dispersible granules and wettable powders may be based on substantially water-insoluble inorganic compounds. Although these compounds are substantially water-insoluble, the prior art describes how, after application to the foliage, the slightly acidic conditions present on the leaf surface facilitate the release of the micronutrients leading to assimilation by the plant. Aqueous suspension concentrate micronutrient fertilizers based on similar substantially insoluble sources are also widely used and offer the advantages of providing high nutrient content in an easy to use aqueous form.
Irrespective of the physical form, in conventional agricultural practice, the micronutrient would typically be diluted in water and applied to the crop using tractor-drawn spray equipment, although, for smaller areas, manual knapsack sprayers may be used. For economic reasons it is common for farmers to co-apply micronutrients along with agrochemicals by tank mixing them together in the same spray tank.
In the case of tropical plantation agriculture involving crops such as banana, oil palm, coffee, cocoa, and pineapple, aerial application of agrochemicals and fertilizers using a specially designed aircraft is a common practice. In such situations, the carrier used for the spray is usually a mineral oil or an oil-in-water emulsion rather than simply water. This is because the oil used (spray oil) facilitates the production of small spray droplets which do not evaporate before reaching the target, and also improves the coverage when using low spray volumes, thus increasing productivity of the spray operation. Spray oils also have an inherent fungicidal effect and can act as adjuvants to improve the efficacy of certain agrochemicals.
Many plant protection agrochemicals are commercially available in forms which are readily mixable with spray oils. However, the range of micronutrient fertilizers suitable for application in spray oil systems is far more restricted.
In situations where an oil-in-water emulsion carrier system is employed, it is possible to use conventional water soluble micronutrient fertilizers such as inorganic salts, complexes or chelates by dissolving these in the aqueous phase and using a surfactant to form the emulsion with the oil. However, this approach has several limitations. Firstly, the amount of micronutrient that can be incorporated is limited by the aqueous solubility of the nutrient source and the proportion of water in the emulsion. Consequently, only low inputs of fertilizer can be applied in this way. Also, mixing the separate components can be arduous and great care must be taken to ensure the micronutrient is fully dissolved otherwise blockages in the spray nozzles may occur. Furthermore this approach often requires the use of high quantities of surfactant. Some types of surfactant used in such systems have been shown to have adverse environmental and health effects; for example, nonylphenol ethoxylates, which have been widely used in the industry, are considered to be endocrine disrupting chemicals.
In systems where only mineral oil is used as the carrier, conventional dry forms of micronutrient fertilizer and aqueous-based solutions or suspension concentrates generally cannot be used as they are incompatible.
In the prior art, several micronutrient compositions are described, specifically designed for use with spray oils. US 3,982,920 (Cross et al., 1976) discloses a water-in-oil emulsion containing water-soluble micronutrients, dispersed in oil. GB 1,532,085 (Texaco Trinidad Inc., 1978) discloses compositions comprising 0.05 to 8 vol% (based on oil amount) of overbased trace metal salts of naphthenic acid in a mineral oil and US 4,125,395 (Texaco Trinidad Inc., 1978) describes micronutrient compositions comprising 0.025 - 8 % (w/v) of overbased trace metal salts of naphthenic acid in a mineral oil. US 4,165,230 (Gavrok et al., 1979) discloses an agricultural spray oil composition containing low amounts (0.1-0.25 % (w/v)) of zinc dialkyl dithiophosphates. US 4,155,739 (Downer et al., 1979) discloses spray oil compositions comprising 0.01 to 2 weight% of oil-soluble boron compounds. Whilst these compositions are claimed to perform effectively, they all suffer from significant drawbacks such as high production costs and low nutrient content.
Hence, there is a need for improved micronutrient fertilizer compositions which are compatible with spray oils for foliar application to crops via aerial application and which have a higher amount of micronutrients than the prior art compositions.
Summary of the Invention
It has been discovered that the above problems can be solved by using liquid oil-miscible suspensions of substantially water-insoluble micronutrient source(s) suspended in an oil-based liquid medium. Surprisingly, the prior art does not contemplate the use of this type of micronutrient dispersions that are miscible with spray oils, in particular for foliar application to crops via spray oil systems, in particular aerial application.
Aspects of the invention are specified in the independent claims. Preferred features are specified in the dependent claims.
Detailed Description of the Invention
According to one embodiment, the use of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source(s) suspended in an oil-based liquid medium for foliar application to crops via spray oil systems is claimed. Such a composition perse has been disclosed, a.o. in US 3,692,529 (Rychman, 1972) for coating a granular solid fertilizer, in WO 97/19030 (Norsk Hydro, 1997) as a composition for colour-coating fertilizer particles and in WO 2014/128468 Al (Yara UK Ltd, 2014) for use as a coating for solid fertiliser particles for preparing a free-flowing, non-dusting micronutrient-coated particulate solid fertiliser material.
Surprisingly, the inventors have now discovered that such composition could also be used for foliar application to crops via spray oil systems.
In particular, the inventors have discovered that such composition will readily disperse in spray oils and could therefore be used for preparing a spray oil composition, comprising a spray oil and the liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source(s) suspended in an oil-based liquid medium.
Furthermore, the inventors have discovered that such composition is physically compatible with a wide range of plant protection agrochemicals, avoiding the requirement for addition of water or extra surfactant (unless specifically required by the agrochemical) in the case the plant protection agrochemicals are used together with such composition.
Suitable micronutrient sources are any substantially water-insoluble compounds of the micronutrient elements boron, copper, iron, manganese, molybdenum and zinc, such as, but not limited to, oxides, hydroxides, carbonates, phosphates, oxychlorides, oxysulphates and borates.
We have found that the best results in terms of product stability, mixability, spray performance and coverage are obtained when the micronutrient source has a very small particle size, substantially in the range of 0.1 to 100 pm, more preferably in the range of 0.1 to 50 pm, even more preferably wherein 90 % of particles have a particle size ranging from 0.1 to 50 pm, ideally wherein 90 % of particles have a particle size ranging from 0.1 to 20 pm. Such fine particle size may be obtained by milling coarser materials or result from the synthetic process employed to produce the compounds.
The liquid oil-miscible micronutrient composition essentially consists of an oil-based liquid medium as suspension medium for the one or more substantially water-insoluble micronutrient sources. Preferably, no water is present in the liquid oil-miscible composition.
The liquid micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium should be oil-miscible. Preferably, it should be miscible with spray oil for foliar application.
The oil-based liquid medium can be any suitable natural, mineral or synthetic oil, such as white mineral oil, but preferably an environmentally acceptable oil such as a vegetable oil is used. Suitable vegetable oils include rapeseed (canola) oil, soya oil, sunflower oil, linseed oil, castor oil, or any other similar vegetable oils. Other oil-based liquid mediums are methylated oils, modified vegetable oils, glycols, glycerols and the like.
Surprisingly, vegetable oil was found to be much better for producing stable dispersions of said particles than white mineral oil.
It is advantageous to achieve as high a loading of the micronutrient in the suspension as possible because this allows sufficient application rates to be used whilst maintaining a low spray volume which is desirable in order to improve the productivity of the spray operation. A highly concentrated composition is also advantageous in terms of cost savings related to transport and storage of the composition and reduced packaging waste. In a preferred embodiment, a solids loading of 30 to 80 weight% (w/w), more preferably a solids loading of 50 to 80 weight% (w/w) should be achieved, relative to the total weight of the composition.
The loading depends on the type of carrier oil, the type of dispersant, etc. A method to achieve such a high loading of the micronutrient in the suspension is disclosed in WO 2014/128468 Al (Yara UK Ltd, 2014), which publication is entirely incorporated herein by reference. As an example, it can be mentioned that rapeseed (canola) oil with 60 weight% zinc oxide could still be pumped and could be produced using the method of WO 2014/128468 Al. However, rapeseed (canola) oil with 70 weight% zinc oxide turned out to be too thick to be pumped, but by adding a dispersion agent, the amount could be increased to 70 weight% without increasing the viscosity of the resulting dispersion. It was an inventive aspect of the invention disclosed in WO 2014/128468 Al that it has been found possible to produce a dispersion with 65 to 70 weight% zinc oxide.
It is also advantageous to achieve a mobile liquid form so that the micronutrient suspension can be easily pumped and dosed into the spray tank. In order to achieve a liquid suspension at this high solids loading, a dispersing agent may need to be incorporated into the formulation. Suitable dispersing agents may be natural or synthetic, such as but not limited to, fatty acids, mono- and diglycerides, polycondensed fatty acids, polymerized fatty acid esters, phosphoric esters of polyethoxyethylated fatty alcohols, ethoxylated fatty alcohols, fatty acid modified polyesters, non-ionic block copolymers. It is an inventive aspect of the present invention that it has been discovered that inclusion of a suitable dispersing agent also facilitates easy and efficient dispersion of the micronutrient composition into the spray oil carrier prior to application, leading to improved productivity in the spray operation.
It is also desirable for the micronutrient suspension to have good stability so as to prevent rapid settlement of the micronutrient from the suspension in order to allow for storage, transport and ease of handling. Accordingly, it has been found advantageous to include any one of a dispersing agent, rheology agent, thickener and anti-settle agent or any combination thereof, in the micronutrient suspension. Suitable rheology agents, thickeners and anti-settle agents include, but are not limited to, clays such as sepiolite, bentonite, attapulgite, hectorite, palygorcite and organically-modified clays; polyurethanes, polyurea; fumed silica, hydrophobically modified fumed silica; fumed mixed oxides.
A colorant material, either dye or pigment, may be added to the formulation in order to aid monitoring of the spray process or to assist with product identification. Examples of suitable pigments include, but are not limited to, Phthalocyanine Blues (for example, C.l. Pigment Blues 15,15:1,15:2, 15:3, 15:4) and Aluminium Chlorophthalocyanine (for example, C.l. Pigment Blue 79); Ultramarine Blue; red, yellow and green iron oxides.
The micronutrient suspension can be prepared by blending a suitable source of micronutrient in the form of a finely divided solid powder with an oil. The pre-prepared non-aqueous liquid suspensions, based on substantially waterinsoluble micronutrient compounds can be prepared according to WO 2014/128468 Al (Yara UK Ltd, 2014) and were found to be fully pumpable, having a viscosity in the range 500 to 6000 cPs at 20 °C, preferably 2000 to 5000 cPs at 20 'C measured on a Brookfield LVD viscometer using Spindle 3 at 12 rpm.
According to one embodiment, a spray composition comprising a spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source(s) suspended in an oil-based liquid medium is claimed.
The spray oil can be any suitable oil, used for foliar application to crops via spray oil systems. Prior art oils are mineral oil, rapeseed (canola) oil, neem oil and soya oil (Landoil©).
Preferably, the spray composition essentially consists of a spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium. Preferably, no water is present is the spray composition.
The spray oil and the oil-based liquid medium of the liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium are fully miscible, i.e. they do not form an emulsion.
Preferably, the spray oil is selected from the group of mineral oil, rapeseed (canola) oil, neem oil and soya oil, and the oil-based liquid medium is selected from the group of rapeseed (canola) oil, soya oil, sunflower oil, linseed oil, castor oil, methylated oil, modified vegetable oil, glycols and glycerols.
According to one embodiment, the spray oil and the oil-based liquid medium are not the same product. Exemplary combinations for the spray oil/oilbased liquid medium are rapeseed (canola)/mineral oil and methylated seed oil/ mineral oil.
The spray composition according to the invention is prepared by mixing an appropriate amount of spray oil and an appropriate amount of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium until an essentially fully dispersed spray composition is obtained. With essentially fully dispersed spray composition is meant a dispersion which shows minimal settlement and is easily re-dispersed , or is stable and does not show any separation.
Appropriate amounts are typically 10 to 30 litres of spray oil mixed with 0.5 to 5 litres of liquid oil-miscible micronutrient composition. Typically, per hectare, 10 to 30 litres of spray oil is used, mixed with 0.5 to 5 litres of liquid oilmiscible micronutrient composition.
According to one embodiment, the use of a spray composition comprising a spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source(s) suspended in an oilbased liquid medium is claimed for foliar application to crops via spray oil systems. Preferably, the spray oil system is selected from aerial application, tractordrawn spray equipment, manual knapsack application, boomspray application and permanent spray lines, or any combination thereof.
The invention will now be further described with reference to the following examples.
EXPERIMENTAL
Example 1
The following example shows the formulation required to make 1 kg of an oilbased suspension of zinc oxide containing 50 weight% Zn (zinc oxide USP grade having an average particle size of approximately 0.5 pm, 90 % of particles are smallerthan 2 pm).
Rapeseed (canola) oil 0.3320 kg
Polycondensed fatty acid dispersant 0.0300 kg
Zinc oxide 0.6230 kg
Pigment Blue 15:1 0.0150 kg
1.0000 kg
The above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient. The resultant product is a fluid suspension at ambient temperature with a viscosity of 4000+/-1000 cPs at 20 °C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
Samples of the product were subjected to storage testing under various conditions. A sample stored at 20°C for a period of 4 months remained stable and fluid with no significant settlement of the suspended solids.
Example 2
The following example shows the formulation required to make 1 kg of an oil based suspension of zinc oxide and calcium borate (colemanite) containing 12.2 weight% Zn and 4.9 weight% B (zinc oxide USP grade having an average particle size of approximately 0.5 pm, 90% of particles less than 2 pm; colmanite ground to achieve a particle size specification of 90 % particles smaller than 13 pm).
| Rapeseed (canola) oil | 0.4090 kg |
| Phosphate ester dispersant | 0.0590 kg |
| Yellow iron oxide | 0.0056 kg |
| Zinc oxide | 0.1515 kg |
| Colemanite | 0.3740 kg |
| Sepiolite clay thickener | 0.0009 kg 1.0000 kg |
The above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient. The resultant product is a fluid suspension at ambient temperature with a viscosity of 2500+/- 500 cPs at 20 °C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
Samples of the product were subjected to storage testing under various conditions. A sample stored at 45 °C for a period of 2 months remained stable and fluid with no significant settlement of the suspended solids.
Example 3
The following example shows the formulation required to make 1 kg of an oil based suspension of cuprous oxide containing 68.8 weight% Cu (cuprous oxide having an average particle size specification of 99 % of particles smaller than 5 pm; 80 % particles smaller than 2 pm).
| Methylated seed oil | 0.1570 kg |
| Phosphate ester dispersant | 0.0400 kg |
| Sepiolite clay thickener | 0.0030 kg |
| Cuprous oxide | 0.8000 kg 1.0000 kg |
The above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient. The resultant product is a fluid suspension at ambient temperature with a viscosity of 3000+/- 500cPs at 20°C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
Samples of the product were subjected to storage testing under various conditions. A sample stored at 20°C for a period of 2 months remained stable and fluid with no significant settlement of the suspended solids.
Example 4
The following example shows the formulation required to make 1 kg of an oil based suspension of manganese carbonate containing 29 weight% Mn (manganese carbonate having an average particle size specification of 100 % of particles smaller than 50 pm; 50 % particles smaller than 5 pm).
Methylated seed oil
0.2991 kg
Polycondensed fatty acid dispersant 0.0290 kg
Pigment Blue 15:1
0.0029 kg
Manganese carbonate
0.6603 kg
Fumed silica
0.0087 kg
1.0000 kg
The above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient.
The resultant product is a fluid suspension at ambient temperature with a viscosity of 2500+/- 500 cPs at 20°C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
Samples of the product were subjected to storage testing under various conditions. A sample stored at 20 °C for a period of 2 months remained stable and fluid with no significant settlement of the suspended solids.
Example 5 : Tank mix tests
Physical compatibility tests (tank-mix tests) were carried out using the formulation based on zinc oxide and colemanite described in Example 2 in order to assess mixability with spray oil and typical agrochemicals used on plantation crops such as banana, for example those disclosed in EP 2077075 Al [Realco SA, 2009). The spray oil used for the tests was light mineral oil with a density of 0.838 g/ml at 25°C and flash point (closed cup) of 112°C. A commercially available aqueous-based suspension concentrate zinc micronutrient fertilizer, YaraVita Zintrac 700 (Yara) was included as comparative experiment.
The agrochemicals used in the tests were as follows:
Tilt 250E (fungicide, Syngenta, 250g/l propiconazole), Bumper (fungicide, Adama, 250g/l propiconazole), Impulse 500 EC (fungicide, BayerCropScience, 500 g/l spiroxamine), Emulsifier (Cll-15 ethoxylated alcohol 7EO).
The tests were carried out using stoppered glass test tubes. The oil, micronutrient composition and agrochemical were added in the order listed using quantities in proportion to the application rates shown but scaled down to 20 ml of spray oil, thus for tank mix i) below 20 ml Spray Oil was mixed with 3 ml Composition 2, and so on.. After each addition, the test tube was inverted 20 times in order to thoroughly mix the components. The tank mixes were assessed immediately after mixing and then again after standing for 2 hours.
The tank mixes carried out were as follows:
According to invention :
i) Spray Oil (20 l/ha) + Example 2 (3 l/ha) ii) Spray Oil (20 l/ha) + Tilt 250EC (0.4 l/ha) iii) Spray Oil (20 l/ha) + Example 2 (3 l/ha) + Tilt (0.4 l/ha) iv) Spray Oil (20 l/ha) + Bumper (0.4 l/ha)
v) Spray Oil (20 l/ha) + Example 2 (3 l/ha) + Bumper (0.4 l/ha) vi) Spray Oil (20 l/ha) + Impulse 500 EC (0.4 l/ha) vii) Spray Oil (20 l/ha) + Example 2 (3 l/ha) + Impulse 500 EC (0.4 l/ha)
Comparative experiment:
viii) Spray Oil (20 l/ha) + Emulsifier (0.2 l/ha) + YaraVita Zintrac 700 (3 l/ha) ix) Spray Oil (20 l/ha) + Emulsifier (0.2 l/ha) + YaraVita Zintrac 700 (3 l/ha) + Impulse 500 EC (0.4 l/ha)
x) Spray Oil (20 l/ha) + Emulsifier (0.2 l/ha) + Water (10 l/ha) + YaraVita
Zintrac 700 (3 l/ha) xi) Spray Oil (20 l/ha) + Emulsifier (0.2 l/ha) + Water (10 l/ha) + YaraVita
Zintrac 700 (3 l/ha) + Impulse 500 EC (0.4 l/ha)
The results are as shown in the table below:
| Tank Mix No. | Initial assessment | Assessment after 2 hours |
| According to invention | ||
| i) | Fully dispersed | Minimal settlement; easily re-dispersed |
| ii) | Fully dispersed | Stable; no separation |
| iii) | Fully dispersed | Minimal settlement; easily re-dispersed |
| iv) | Fully dispersed | Stable; no separation |
| v) | Fully dispersed | Minimal settlement; easily re-dispersed |
| vi) | Fully dispersed | Stable; no separation |
| vii) | Fully dispersed | Minimal settlement; easily re-dispersed |
| Comparative experiment | ||
| viii) | Grainy appearance | Phase separation; heavy sedimentation |
| ix) | Grainy appearance | Phase separation; heavy sedimentation |
| x) | Grainy appearance | Phase separation; heavy sedimentation |
| xi) | Grainy appearance | Phase separation; heavy sedimentation |
Example 6 : Glasshouse trials
Glasshouse trials were carried out in order to assess spray performance and crop safety of the micronutrient compositions described in Examples 1 and 2 above. The trials were carried out using a sorghum test crop grown in pots in a sand medium and fed via a nutrient solution. A randomised block design using 4 replicates was employed. Micronutrient compositions 1 and 2 were applied by foliar spraying at the growth stage defined as immediately pre-ear emergence using rates equivalent to 2 litre/ha and 4 litre/ ha in 30 litre/ha spray oil. Two control treatments were carried out for comparison: the first using spray oil alone at 30 litres/ha, the second using a commercially available water based zinc suspension concentrate, YaraVita Zintrac 700 (Yara) at 1 litre/ha in 30 litres/ha water. The crop was assessed for symptoms of phytotoxicity seven days after spraying.
Both oil-based micronutrient compositions were found to spray without any problems and no evidence of phytotoxicity was observed at the seven day assessment.
Summary
The invention provides a use of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium, for foliar application to crops via spray oil systems, and in particular for aerial application to tropical plantation crops. The advantages of the invention over current practice are as follows:
1) Greater flexibility for aerially applying micronutrients to crops.
2) Superior compatibility with spray oils and agrochemicals than conventional micronutrient fertilizer compositions.
3) Eliminates the need to add extra water and/or adjuvant to the spray mix.
4) Facilitates lower spray volumes leading to improved spray productivity.
5) Provides micronutrients in a concentrated, easy to use liquid form, reducing packaging and transport costs.
6) Delivers micronutrients to the crop in a safe and effective manner.
Claims (15)
1. Use of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium, for foliar application to crops via spray oil systems.
2. Use of the micronutrient composition according to claim 1, wherein the one or more substantially water-insoluble micronutrient sources is a substantially water-insoluble compound of the micronutrient elements boron, copper, iron, manganese, molybdenum and zinc, or mixtures thereof.
3. Use of the micronutrient composition according to claim 2, wherein the one or more substantially water-insoluble micronutrient sources is selected from the group of oxides, hydroxides, carbonates, phosphates, oxychlorides, oxysulphates and borates.
4. Use of the micronutrient composition according to any one of the preceding claims, wherein the micronutrient source has a particle size, substantially in the range of 0.1 to 100 pm, more preferably in the range of 0.1 to 50 pm, even more preferably wherein 90 % of particles have a particle size ranging from 0.1 to 50 pm, ideally wherein 90 % of particles have a particle size ranging from 0.1 to 20 pm.
5. Use of the micronutrient composition according to any one of the preceding claims, wherein the oil-based liquid medium is a vegetable oil.
6. Use of the micronutrient composition according to any one of the preceding claims, having a solids loading in the range of 30 to 80 weight% (w/w), more preferably 50 to 80 weight% (w/w), relative to the total weight of the composition.
7. Use of the micronutrient composition according to any one of the preceding claims, wherein the composition includes a dispersing agent.
8. Use of the micronutrient composition according to any one of the preceding claims, wherein the composition includes any one of a rheology agent, thickener and anti-settle agent, or any combination thereof.
9. Use of the micronutrient composition according to any one of the preceding claims, wherein the composition includes a colorant material.
10. Spray composition, comprising a spray oil and a liquid oil-miscible micronutrient composition as defined in any one of claims 1 to 9.
11. Spray composition according to claim 10, wherein the spray oil is selected from the group of mineral oil, rapeseed (canola) oil, neem oil and soybean oil.
12. Spray composition, prepared by mixing by mixing an appropriate amount of spray oil and an appropriate amount of a liquid oil-miscible micronutrient composition as defined in any one of claims 1 to 9 until an essentially fully dispersed spray composition is obtained.
13. Spray composition, comprising 0.5 to 5 litres of liquid oil-miscible micronutrient composition and 10 to 30 litres of spray oil.
14. Use of a spray composition according to claim 10 to 13, for foliar application to crops via spray oil systems.
15. Use according to claim 14, wherein spray oil system is selected from aerial application, tractor-drawn spray equipment, manual knapsack application, boomspray application and permanent spray lines, or any combination thereof.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1720609.5A GB2570860B (en) | 2017-12-11 | 2017-12-11 | Micronutrient formulation for aeriel crop application |
| PCT/GB2018/053356 WO2019115995A1 (en) | 2017-12-11 | 2018-11-20 | Micronutrient formulation for aerial crop application |
| MX2020004446A MX2020004446A (en) | 2017-12-11 | 2018-11-20 | FORMULATION OF MICRONUTRIENTS FOR AERIAL APPLICATION TO CROPS. |
| PH1/2020/550777A PH12020550777B1 (en) | 2017-12-11 | 2018-11-20 | Micronutrient formulation for aerial crop application |
| CONC2020/0004788A CO2020004788A2 (en) | 2017-12-11 | 2020-04-17 | Micronutrient formulation for aerial application to crops |
| ECSENADI202032499A ECSP20032499A (en) | 2017-12-11 | 2020-06-16 | FORMULATION OF MICRONUTRIENTS FOR AERIAL APPLICATION TO CROPS |
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|---|---|---|---|
| GB1720609.5A GB2570860B (en) | 2017-12-11 | 2017-12-11 | Micronutrient formulation for aeriel crop application |
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| GB201720609D0 GB201720609D0 (en) | 2018-01-24 |
| GB2570860A true GB2570860A (en) | 2019-08-14 |
| GB2570860B GB2570860B (en) | 2022-04-27 |
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| CO (1) | CO2020004788A2 (en) |
| EC (1) | ECSP20032499A (en) |
| GB (1) | GB2570860B (en) |
| MX (1) | MX2020004446A (en) |
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| WO (1) | WO2019115995A1 (en) |
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| CN112174731A (en) * | 2020-09-28 | 2021-01-05 | 湖北富邦科技股份有限公司 | Oil-based trace element-rich foliar fertilizer and preparation method thereof |
| CA3196260A1 (en) * | 2020-10-20 | 2022-04-28 | Leahann IANNOTTA | Liquid suspension compositions and coated fertilizer particles |
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| US3692529A (en) * | 1970-09-08 | 1972-09-19 | Loren J Rychman | Process of oiling |
| AU2011220319B2 (en) * | 2010-02-23 | 2014-03-27 | Innovative Chemical Services Pty Ltd | Emulsion adjuvant for herbicides |
| TW201139625A (en) * | 2010-03-02 | 2011-11-16 | Bayer Cropscience Ag | Use of propineb for physiological curative treatment under zinc deficiency |
-
2017
- 2017-12-11 GB GB1720609.5A patent/GB2570860B/en active Active
-
2018
- 2018-11-20 MX MX2020004446A patent/MX2020004446A/en unknown
- 2018-11-20 PH PH1/2020/550777A patent/PH12020550777B1/en unknown
- 2018-11-20 WO PCT/GB2018/053356 patent/WO2019115995A1/en not_active Ceased
-
2020
- 2020-04-17 CO CONC2020/0004788A patent/CO2020004788A2/en unknown
- 2020-06-16 EC ECSENADI202032499A patent/ECSP20032499A/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1456623A (en) * | 1974-12-02 | 1976-11-24 | Texaco Development Corp | Stabilized dispersions of micronutrients in spray oils |
| US4026694A (en) * | 1974-12-02 | 1977-05-31 | Texaco Inc. | Stabilized dispersions of micronutrients in spray oils |
| US4111678A (en) * | 1977-03-10 | 1978-09-05 | Texaco Trinidad Inc. | Foliar feeding organometallic composition |
| US4133668A (en) * | 1977-06-09 | 1979-01-09 | Union Oil Company Of California | Multicomponent soil supplement |
| WO2009083585A2 (en) * | 2007-12-31 | 2009-07-09 | Total Raffinage Marketing | Composition and method for treating banana tree cercosporiosis |
| GB2513232A (en) * | 2013-02-20 | 2014-10-22 | Yara Uk Ltd | Fertiliser coating containing micronutrients |
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|---|---|
| MX2020004446A (en) | 2020-07-22 |
| GB201720609D0 (en) | 2018-01-24 |
| GB2570860B (en) | 2022-04-27 |
| PH12020550777A1 (en) | 2021-04-26 |
| CO2020004788A2 (en) | 2020-05-29 |
| ECSP20032499A (en) | 2020-07-31 |
| WO2019115995A1 (en) | 2019-06-20 |
| PH12020550777B1 (en) | 2022-12-07 |
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