CN116836011A - Fertilizer synergistic composition and application - Google Patents
Fertilizer synergistic composition and application Download PDFInfo
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- CN116836011A CN116836011A CN202210299332.9A CN202210299332A CN116836011A CN 116836011 A CN116836011 A CN 116836011A CN 202210299332 A CN202210299332 A CN 202210299332A CN 116836011 A CN116836011 A CN 116836011A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 290
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 94
- 239000000203 mixture Substances 0.000 title claims abstract description 83
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 109
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 87
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 55
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002689 soil Substances 0.000 claims abstract description 44
- 150000001875 compounds Chemical class 0.000 claims abstract description 42
- 238000003973 irrigation Methods 0.000 claims abstract description 30
- 230000002262 irrigation Effects 0.000 claims abstract description 30
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 28
- 239000008103 glucose Substances 0.000 claims abstract description 28
- 230000012010 growth Effects 0.000 claims abstract description 16
- 230000001965 increasing effect Effects 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims abstract description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 22
- 239000004202 carbamide Substances 0.000 claims description 13
- 235000019270 ammonium chloride Nutrition 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 8
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 8
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 8
- 150000001408 amides Chemical class 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 235000013877 carbamide Nutrition 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 43
- 239000011574 phosphorus Substances 0.000 abstract description 43
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 43
- 230000002829 reductive effect Effects 0.000 abstract description 29
- 230000004720 fertilization Effects 0.000 abstract description 24
- 238000012851 eutrophication Methods 0.000 abstract description 12
- 238000011010 flushing procedure Methods 0.000 abstract description 12
- 229910002651 NO3 Inorganic materials 0.000 abstract description 11
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 11
- 238000005469 granulation Methods 0.000 abstract description 10
- 230000003179 granulation Effects 0.000 abstract description 10
- 230000035784 germination Effects 0.000 abstract description 7
- 208000035240 Disease Resistance Diseases 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000005059 dormancy Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 235000015165 citric acid Nutrition 0.000 description 23
- 241000196324 Embryophyta Species 0.000 description 13
- 239000000618 nitrogen fertilizer Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000011573 trace mineral Substances 0.000 description 10
- 235000013619 trace mineral Nutrition 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 235000015097 nutrients Nutrition 0.000 description 7
- 239000011591 potassium Substances 0.000 description 7
- 229910052700 potassium Inorganic materials 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002688 soil aggregate Substances 0.000 description 4
- 239000012747 synergistic agent Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 239000004254 Ammonium phosphate Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 240000003768 Solanum lycopersicum Species 0.000 description 3
- 241000219094 Vitaceae Species 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 238000012271 agricultural production Methods 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 3
- 235000019289 ammonium phosphates Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 3
- 235000021021 grapes Nutrition 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 239000002367 phosphate rock Substances 0.000 description 3
- 230000029553 photosynthesis Effects 0.000 description 3
- 238000010672 photosynthesis Methods 0.000 description 3
- 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 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 2
- 244000241235 Citrullus lanatus Species 0.000 description 2
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 240000003553 Leptospermum scoparium Species 0.000 description 2
- 235000015459 Lycium barbarum Nutrition 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 244000061176 Nicotiana tabacum Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 108010046334 Urease Proteins 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 235000020774 essential nutrients Nutrition 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000002686 phosphate fertilizer Substances 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- KTCBLMXNWYGCRT-UHFFFAOYSA-N 1-[2-(1h-indol-3-yl)ethyl]-3-methylthiourea Chemical compound C1=CC=C2C(CCNC(=S)NC)=CNC2=C1 KTCBLMXNWYGCRT-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 1
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 1
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 1
- 235000019739 Dicalciumphosphate Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 229940090496 Urease inhibitor Drugs 0.000 description 1
- UFONUKZQWFSQLP-UHFFFAOYSA-N [N].NC#N Chemical compound [N].NC#N UFONUKZQWFSQLP-UHFFFAOYSA-N 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- MYFXBBAEXORJNB-UHFFFAOYSA-N calcium cyanamide Chemical compound [Ca+2].[N-]=C=[N-] MYFXBBAEXORJNB-UHFFFAOYSA-N 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 1
- 229940038472 dicalcium phosphate Drugs 0.000 description 1
- 229910000390 dicalcium phosphate Inorganic materials 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000021073 macronutrients Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000014075 nitrogen utilization Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- -1 nitrogen-phosphorus compound Chemical class 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 235000015816 nutrient absorption Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002786 root growth Effects 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000002601 urease inhibitor Substances 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a fertilizer synergistic composition and application, wherein the fertilizer synergistic composition comprises thiourea, dicyandiamide, citric acid and glucose. The fertilizer synergistic composition provided by the invention is applied in a foliar spraying mode, so that dormancy of crops can be broken, germination can be advanced, and cold-proof capability of the crops can be improved; the fertilizer is applied by means of spray irrigation, drip irrigation or flushing, so that the growth of crop root systems can be promoted, the quick-acting phosphorus content in soil can be improved, and the soil is loosened; when the fertilizer is mixed with the compound fertilizer for application, the yield and the quality can be increased, the fertilization times are reduced, and the construction cost is saved; the fertilizer synergistic composition is added during the granulation of the compound fertilizer, so that the application period of the fertilizer can be prolonged, the yield and the quality can be increased, and the disease resistance of crops can be improved; the fertilizer synergistic composition is added into the fertilizer for application after granulation, so that the fertilizing amount and the fertilizing times can be reduced, the fertilizing cost is reduced, and further, the water eutrophication caused by the loss of nitrogen and phosphorus in the fertilizer can be reduced, and the source of nitrate pollution of underground water is reduced.
Description
Technical Field
The invention relates to the technical field of agricultural planting, in particular to a fertilizer synergistic composition and application.
Background
The necessary nutrient elements for higher plants include 17 elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, copper, zinc, molybdenum, chlorine, and nickel. These 17 essential nutrients are classified into macro-, medium-and micro-nutrients due to their different contents in the crop. Macronutrients are present in the crop in about several thousandths to several tens of percent by weight of dry matter, such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, etc.; the medium and trace nutrients are present in the crop in about a few thousandths to a few parts per million by weight of dry matter, such as calcium, magnesium, sulfur, iron, boron, manganese, copper, zinc, molybdenum, chlorine, and the like.
The fertilizer is a substance for providing one or more than one plant essential nutrient elements, improving soil properties and improving soil fertility level, and is one of substance bases in agricultural production. In order to meet the requirements of plants on the nutrient elements, the existing fertilizers mainly comprise ammonium phosphate fertilizers, macroelement water-soluble fertilizers, secondary element fertilizers, biofertilizers, organic fertilizers, multidimensional field energy concentrated organic fertilizers and the like.
In the agricultural production process, the problems of partial application of nitrogen, phosphorus and potassium fertilizers, little or no application of organic fertilizers, unreasonable fertilization of supplementing medium trace elements and the like often exist, so that various elements of soil are disordered and the soil is hardened, and the organic fertilizers or the medium element fertilizers are required to be additionally applied.
The traditional compound fertilizer has poor water solubility, more residues and less than 50 percent of absorptivity, is easy to cause fertilizer loss and eutrophication of water, seriously damages the soil structure, causes bad conditions such as nutrient imbalance, and the like.
Although the water-soluble fertilizer has the characteristics of quick nutrient absorption, high fertilizer utilization rate and convenient operation, the water-soluble fertilizer has the following disadvantages: low content of nutrient elements, large fertilizing amount and high use cost.
Therefore, how to improve the utilization rate of each element in the fertilizer is a difficult point of fertilizer synergism.
Disclosure of Invention
In order to solve the problems, a first object of the present invention is to provide an application of thiourea, dicyandiamide, citric acid and glucose in preparing a synergistic fertilizer composition, so as to improve the utilization rate of trace elements in nitrogen, phosphorus and metal, reduce the fertilizing amount and the fertilizing frequency, reduce the fertilizing cost, further, reduce the eutrophication of water caused by the loss of nitrogen and phosphorus in the fertilizer, and reduce the source of nitrate pollution of groundwater.
A second object of the present invention is to provide a fertilizer enhancing composition comprising thiourea, dicyandiamide, citric acid and glucose.
In one implementation mode of the invention, the aqueous emulsion comprises, by mass, 20-40 parts of thiourea, 10-30 parts of dicyandiamide, 10-15 parts of citric acid and 25-60 parts of glucose.
In one implementation mode of the invention, the fertilizer synergistic composition comprises 25-40 parts of thiourea, 10-20 parts of dicyandiamide, 10-15 parts of citric acid and 25-50 parts of glucose by mass.
In one implementation mode of the invention, the fertilizer synergistic composition comprises 20-25 parts of thiourea, 10-15 parts of dicyandiamide, 10-15 parts of citric acid and 45-60 parts of glucose by mass parts.
In one implementation mode of the invention, the fertilizer synergistic composition comprises 20-30 parts of thiourea, 20-30 parts of dicyandiamide, 10-15 parts of citric acid and 25-50 parts of glucose according to mass parts.
The third object of the invention is to provide a synergistic fertilizer, which comprises the synergistic fertilizer composition and at least one fertilizer selected from urea, ammonium chloride, ammonium sulfate, nitrophosphate fertilizer, water-soluble fertilizer, compound fertilizer and blended fertilizer.
In one implementation of the present invention, the mass ratio of the fertilizer synergistic composition to the at least one fertilizer is (0.1-2): 100.
in one implementation mode of the invention, the amide nitrogen in the water-soluble fertilizer, the compound fertilizer or the blended fertilizer accounts for 30-100% of the weight of the nitrogen, or the ammonium nitrogen accounts for 20-80% of the weight of the nitrogen.
A fourth object of the present invention is to provide the synergistic fertilizer composition or the use of the synergistic fertilizer in increasing crop yield, improving crop quality, improving crop stress resistance or promoting crop growth.
In one implementation mode of the invention, the fertilizer synergistic composition is applied to crops in a foliar spraying mode; or alternatively
Applying the fertilizer synergistic composition to crops by one or more of drip irrigation, spray irrigation and flushing; or alternatively
The synergistic fertilizer is applied to crops by one or more modes of ditch application, hole application, broadcast application, soil mixing application, flushing application, drip irrigation, spray irrigation, foliar application and machine fertilization.
The fertilizer synergistic composition provided by the invention can promote the utilization rate of crops to nitrogen, phosphorus and trace elements in metals in fertilizers and soil through the combined action of thiourea, dicyandiamide, citric acid and glucose, promote root growth, loosen the soil, reduce the loss of nitrogen and phosphorus elements in the fertilizers, reduce water eutrophication and reduce nitrate pollution of underground water.
Specifically, the fertilizer synergistic composition provided by the invention has wide application, can be applied singly, can be used for fertilizer blending or fertilizer granulation, can be applied singly for foliar spraying, drip irrigation, spray irrigation and flushing, and can be applied in drip irrigation, spray irrigation and flushing or can be applied in soil after fertilizer blending. Different application modes have different functions, and when the plant-leaf fertilizer is used for foliage spraying, the plant-leaf fertilizer can promote the germination of crops, improve photosynthesis and improve stress resistance of crops; when the fertilizer is used for sprinkling irrigation, drip irrigation and flushing, the soil aggregate structure is improved, the soil is loosened, the development of root systems is promoted, and the release of phosphorus in the soil is promoted; when the fertilizer is applied together, the utilization rate of trace elements in nitrogen, phosphorus and metal can be improved, the growth of root systems is promoted, and further, the eutrophication of water bodies caused by the loss of nitrogen and phosphorus in the fertilizer can be reduced, and the nitrate pollution of underground water is reduced.
Detailed Description
Reference now will be made in detail to embodiments of the invention, one or more examples of which are described below. Each example is provided by way of explanation, not limitation, of the invention. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment.
Accordingly, it is intended that the present invention cover such modifications and variations as fall within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present invention will be disclosed in or be apparent from the following detailed description. It is to be understood by one of ordinary skill in the art that the present discussion is a description of exemplary embodiments only, and is not intended as limiting the broader aspects of the present invention.
In the traditional agricultural production process, the problems of partial application of nitrogen, phosphorus and potassium fertilizers, little or no application of organic fertilizers, unreasonable fertilization of supplementing medium trace elements and the like, and soil element imbalance or soil hardening are caused, and in order to solve the problem, the organic fertilizers and the trace element fertilizers are often required to be additionally applied, so that the fertilization times are high, and the fertilization cost is high.
In addition, on one hand, the loss of nitrogen and phosphorus elements in farmlands is a main cause of eutrophication of water, and on the other hand, agricultural non-point source pollution is increasingly becoming a main source of nitrate pollution of groundwater, so that it is important how to prevent the loss of nitrogen and phosphorus elements in fertilizers.
To at least partially solve at least one of the above technical problems, a first aspect of the present invention provides the use of thiourea, dicyandiamide, citric acid and glucose in combination for the preparation of a fertilizer synergistic composition for achieving different functions by different modes of application. Specifically, the fertilizer can be applied singly or mixed with fertilizer or added into the fertilizer for granulation. When the plant pesticide composition is independently applied, the plant pesticide composition can be used for foliage spraying to promote the germination of crops, improve photosynthesis and improve stress resistance of the crops; when the fertilizer is used for sprinkling irrigation, drip irrigation and flushing, the soil aggregate structure can be improved, the soil is loosened, the development of root systems is promoted, and the release of phosphorus in the soil is promoted; when the fertilizer is applied together, the utilization rate of trace elements in nitrogen, phosphorus and metal can be improved, the growth of root systems is promoted, and further, the eutrophication of water bodies caused by the loss of nitrogen and phosphorus in the fertilizer can be reduced, and the source of nitrate pollution of underground water is reduced.
The second aspect of the invention provides a fertilizer synergistic composition, which comprises thiourea, dicyandiamide, citric acid and glucose, wherein the four components are synergistic, the thiourea inhibits urease activity, the dicyandiamide inhibits nitrifying bacteria activity, the nitrogen utilization rate is improved, the citric acid promotes the release of phosphorus in soil, the utilization rate of phosphorus, zinc, iron, manganese, copper and the like in the fertilizer is improved, the glucose can loosen the soil and improve the microbial activity of the soil, the soil aggregate structure is improved, more air is provided for the growth of crop root systems, the four synergistic effects are achieved, the growth of the crops is promoted, the crop yield is improved, and the crop quality is improved.
Wherein thiourea and dicyandiamide can inhibit the loss of nitrogen element in fertilizer, and concretely, the thiourea is an organic sulfur-containing compound with a molecular formula of CH 4 N 2 S, the urea is dissolved in cold water, can be used as a germination accelerator, a urease inhibitor and a nitrification inhibitor, can delay the hydrolysis of urea while providing nitrogen, so that the nitrogen is slowly released to improve the utilization rate of the nitrogen, dicyandiamide can control the activity of nitrifying bacteria, the conversion speed of nitrogen fertilizer in soil is regulated, the loss of nitrogen is reduced, and the use efficiency of the fertilizer is improved; citric acid, also called citric acid, has a molecular formula of C6H8O7, is an important organic acid, is easy to dissolve in water, can effectively promote the absorption of plants to phosphorus in phosphorus-containing plant fertilizers, can promote the absorption of plants to phosphorus in soil in the fertilization process of phosphorus-free plant fertilizers, can promote the absorption of plants to phosphorus in soil, is beneficial to plant growth, and can improve the utilization rate of metallic medium and trace elements such as calcium, magnesium, zinc, manganese, iron, copper and the like; glucose is an organic compound of formula C 6 H 12 O 6 Can loosen soil, improve the microbial activity of the soil, improve the aggregate structure of the soil and provide more air for the growth of the root systems of crops.
When the fertilizer synergistic composition is independently applied, the fertilizer synergistic composition can be applied to foliage spraying to promote crop germination, improve photosynthesis and improve crop stress resistance; when the fertilizer is used for sprinkling irrigation, drip irrigation and flushing, the soil aggregate structure can be improved, the soil is loosened, the development of root systems is promoted, and the release of phosphorus in the soil is promoted; when the fertilizer is applied together with the fertilizer, the utilization rate of trace elements in nitrogen, phosphorus and metal can be improved, the growth of root systems can be promoted, the fertilization times can be reduced, the fertilization cost can be reduced, and further, the eutrophication of water body caused by the loss of nitrogen and phosphorus in the fertilizer can be reduced, and the source of nitrate pollution of underground water can be reduced.
In some embodiments, the fertilizer synergistic composition comprises 20-40 parts of thiourea, 10-30 parts of dicyandiamide, 10-15 parts of citric acid and 25-60 parts of glucose by mass, and different application modes are used for setting different proportions, so that different application effects can be achieved.
In some specific embodiments, the fertilizer synergistic composition comprises 25-40 parts of thiourea, 10-20 parts of dicyandiamide, 10-15 parts of citric acid and 25-50 parts of glucose, and can be applied in a foliar spraying mode to break dormancy of crops, enable the crops to sprout early and improve stress resistance of the crops.
In some embodiments, the fertilizer synergistic composition comprises 20-25 parts of thiourea, 10-15 parts of dicyandiamide, 10-15 parts of citric acid and 45-60 parts of glucose, and can be applied to crops by at least one of drip irrigation, spray irrigation and flushing to promote the growth of crop root systems, improve the content of quick-acting phosphorus in soil and loosen the soil.
In some specific embodiments, the fertilizer synergistic composition comprises 20-30 parts of thiourea, 20-30 parts of dicyandiamide, 10-15 parts of citric acid and 25-50 parts of glucose, is used for mixing and applying with the fertilizer, and can be applied to crops by one or more modes of ditch application, hole application, broadcast application, mixed application with soil, flushing application, drip irrigation, sprinkling irrigation, foliar application and machine fertilization, so that the yield and quality can be increased, the fertilization times can be reduced, and the construction cost can be saved; specifically, the fertilizer synergistic composition is added during fertilizer granulation, so that the application period of the fertilizer can be prolonged, the yield and the quality can be increased, and the disease resistance of crops can be improved; after granulating, the fertilizer synergistic composition is added into fertilizer for application, so that the fertilizing amount and the fertilizing times can be reduced, and the fertilizing cost can be reduced; further, the fertilizer can be mixed with the fertilizer to reduce the eutrophication of water body caused by the loss of nitrogen and phosphorus in the fertilizer and reduce the source of nitrate pollution of underground water.
Therefore, the third aspect of the invention provides a synergistic fertilizer, which comprises a synergistic fertilizer composition and at least one fertilizer selected from urea, ammonium chloride, ammonium sulfate, nitrophosphate fertilizer, water-soluble fertilizer, compound fertilizer and blended fertilizer, wherein the synergistic fertilizer composition comprises 20-30 parts of thiourea, 20-30 parts of dicyandiamide, 10-15 parts of citric acid and 25-50 parts of glucose, can reduce the fertilization cost, inhibit the volatilization and loss of nitrogen elements in the fertilizer, improve the utilization rate of trace elements in nitrogen, phosphorus and metal, promote the growth of crop root systems, and further, can reduce the eutrophication of water body caused by the loss of nitrogen and phosphorus in the fertilizer and reduce the source of nitrate pollution of underground water.
Specifically, urea is a high-concentration nitrogen fertilizer, belongs to a neutral quick-acting fertilizer, can be used for producing various compound fertilizers, is suitable for all crops and all soils, can be used as a base fertilizer and an additional fertilizer, can promote the division and growth of plant cells, makes branches and leaves luxuriant, does not remain any harmful substances in the soil, and has no adverse effect after long-term application. Urea is an organic nitrogen fertilizer, and can be absorbed and utilized by crops after being hydrolyzed into ammonium carbonate or ammonium bicarbonate under the action of urease in soil. Therefore, urea is applied 4-8 days before the fertilizer-requiring period of crops. The fertilizer synergistic composition can inhibit volatilization and loss of nitrogen element in urea and improve the utilization rate of the nitrogen element.
Ammonium chloride, which is an inorganic substance with a chemical formula of NH 4 Cl refers to ammonium salt of hydrochloric acid, and contains nitrogenThe powdery ammonium chloride is more used as a basic fertilizer for producing compound fertilizers, belongs to physiological acid fertilizers, is not suitable for being applied to acid soil and saline-alkali soil due to more chlorine, is not suitable for being applied to seed fertilizers, seedling field fertilizers or leaf fertilizers, is not suitable for being applied to chlorine sensitive crops (such as tobacco, potatoes, oranges, tea trees and the like), has higher and stable fertilizer efficiency when being applied to paddy fields, and is not suitable for being applied to chlorine sensitive crops (such as tobacco, oranges, tea trees and the like), because chlorine can inhibit nitrification of paddy fields, is beneficial to forming rice stem fibers, increases toughness and reduces lodging of paddy rice and invasion of diseases and insects. The synergistic fertilizer composition and the ammonium chloride can inhibit volatilization and loss of nitrogen in the ammonium chloride, further inhibit activity of digestive bacteria, improve utilization rate of nitrogen and increase stress resistance of crops.
The ammonium sulfate is an excellent nitrogenous fertilizer, commonly known as fertilizer field powder, is suitable for general soil and crops, can enable branches and leaves to grow vigorously, improves fruit quality and yield, enhances the resistance of crops to disasters, can be used as base fertilizer, additional fertilizer and seed fertilizer, and can achieve the effects of further increasing yield and improving quality by combining the synergistic fertilizer composition and the ammonium sulfate.
The nitric phosphate fertilizer is a binary nitrogen-phosphorus compound fertilizer prepared by decomposing phosphate rock powder with nitric acid or mixed acid mainly containing nitric acid and ammonifying, and mainly comprises dicalcium phosphate, ammonium phosphate and ammonium nitrate, wherein some nitric phosphate fertilizer also contains potassium nitrate and ammonium chloride, has an off-white small particle appearance, has a particle size of 2-5, and has certain hygroscopicity. In the production process, due to the difference of the grade of phosphorite, the concentration of nitric acid and the technological process, the phosphate rock has ammonium nitrogen and nitrate nitrogen, water-soluble phosphorus and citrate-soluble phosphorus, is suitable for acid soil and neutral soil, has good effect on various crops, can be used as a base fertilizer and a seed fertilizer, and has better concentrated application effect. The synergistic fertilizer composition and the nitrophosphate fertilizer can promote the absorption of plants to phosphorus in the fertilizer, reduce the loss of phosphorus, improve the utilization rate of phosphorus in the fertilizer and reduce the fertilization times.
The water-soluble fertilizer is a multi-element compound fertilizer which can be completely dissolved in water, can be rapidly dissolved in water, is easier to be absorbed by crops, has relatively high absorption and utilization rate, can be applied to facility agriculture such as spray and drip irrigation, realizes the integration of the water and the fertilizer, and achieves the effects of saving water, fertilizer and labor. The synergistic fertilizer composition and the water-soluble fertilizer are combined, so that the eutrophication of water body caused by the loss of nitrogen and phosphorus can be reduced, and the source of nitrate pollution of underground water can be reduced.
The compound fertilizer is chemical fertilizer containing three elements of nitrogen, phosphorus and potassium or only any two of the three elements, and the compound fertilizer containing any two of the three elements is binary compound fertilizer; meanwhile, the fertilizer containing three elements of nitrogen, phosphorus and potassium is called as a ternary compound fertilizer, so that the fertilizer efficiency is improved, the fertilizer application technology is simplified, the fertilizer application times are reduced, the crop yield and quality are improved, and the problems of environmental pollution and the like caused by unreasonable application of simple-substance fertilizers are avoided. The synergistic fertilizer composition and the compound fertilizer can be combined to improve the utilization rate of nitrogen, phosphorus, potassium and the like in the fertilizer, prolong the fertilization period, reduce the fertilization times and improve the disease resistance of crops.
The mixed fertilizer is also called formula fertilizer and BB fertilizer, and is prepared by mixing two or more simple substance fertilizers or compound fertilizers with similar particle sizes as raw materials according to a certain proportion by a simple machine, and is a mixture of various raw materials. The blended fertilizer has both powdery and granular forms. The blended fertilizer has the advantages of simple production process, flexible operation, lower production cost and nutrient proportion meeting the requirements of micro-field regulation or specific field crops. The fertilizer synergistic composition and the blended fertilizer can reduce the fertilizing amount and the fertilizing times, promote the absorption of plant root systems to the fertilizer and promote the growth of the plant root systems.
In some embodiments, when the fertilizer synergistic composition is blended with at least one of urea, ammonium chloride, ammonium sulfate, nitrophosphate, water-soluble fertilizer, compound fertilizer, and blended fertilizer, the fertilizer synergistic composition can be added when urea, ammonium chloride, ammonium sulfate, nitrophosphate, water-soluble fertilizer, and compound fertilizer are granulated, and the weight ratio of the fertilizer synergistic composition to the fertilizer blend is (0.2-2): 100.
in other embodiments, the fertilizer enhancing composition is granulated prior to blending the fertilizer enhancing composition with the fertilizer, where the weight ratio of the fertilizer enhancing composition to the fertilizer blend is (0.1-1.5): 100.
in some embodiments, the amide nitrogen in the water-soluble fertilizer, the compound fertilizer, or the blended fertilizer is 30% to 100% by weight of the nitrogen, or the ammonium nitrogen is 20% to 80% by weight of the nitrogen.
Specifically, the water-soluble fertilizer, the compound fertilizer or the blended fertilizer all contain nitrogen fertilizer, and the nitrogen fertilizer can be divided into ammonium nitrogen fertilizer such as ammonium carbonate, ammonium sulfate, ammonium chloride and the like, nitrate nitrogen fertilizer such as ammonium nitrate, sodium nitrate and the like, amide nitrogen fertilizer such as urea and the like, cyanamide nitrogen fertilizer such as lime nitrogen and the like according to the form of the nitrogen element nutrient contained in the nitrogen fertilizer.
The amide nitrogen in the water-soluble fertilizer, the compound fertilizer or the blended fertilizer accounts for 30-100% of the weight of the nitrogen, or the ammonium nitrogen accounts for 20-80% of the weight of the nitrogen, and the synergistic fertilizer composition and the water-soluble fertilizer, the compound fertilizer or the blended fertilizer have the effects of inhibiting volatilization and loss of nitrogen in the fertilizer when being blended and applied, so that the yield and quality can be increased, the fertilization times can be reduced, and the construction cost can be saved; the fertilizer synergistic composition is added during fertilizer granulation, so that the application period of the fertilizer can be prolonged, the yield and the quality can be increased, and the disease resistance of crops can be improved; the fertilizer synergistic composition is added into the fertilizer for blending application after granulation, so that the fertilizing amount and the fertilizing times can be reduced, and the fertilizing cost can be reduced.
Embodiments of the present invention will be described in detail below with reference to examples.
Example 1
The embodiment provides a fertilizer synergistic composition, which comprises 32% of thiourea, 15% of dicyandiamide, 12% of citric acid and 41% of glucose by mass, and is uniformly mixed to obtain a synergistic agent for foliar spraying.
The fertilizer synergistic composition in the example 1 is diluted 1500-2000 times, and the fertilizer synergistic composition is sprayed on the leaf surfaces of grapes in spring, so that dormancy of the grapes can be broken, germination can be advanced, and cold-proof capacity of the grapes can be improved. The results are shown in Table 1:
TABLE 1
Example 2
The embodiment provides a fertilizer synergistic composition, which comprises 22% of thiourea, 12% of dicyandiamide, 12% of citric acid and 54% of glucose by mass, and is prepared by uniformly mixing the components to obtain the fertilizer synergistic composition for sprinkling irrigation, drip irrigation and flushing.
The fertilizer synergistic composition in the embodiment 2 is used for tomato planting, is dissolved with the fertilizer in the tomato seedling stage and fruiting stage respectively, the adding proportion is 0.8%, the fertilizer is diluted by 250-300 times, and the whole growth period is 3 times, and the fertilizer synergistic composition can promote the growth of tomato root systems, improve the quick-acting phosphorus content in soil and loosen the soil. The results are shown in Table 2:
TABLE 2
Example 3
The embodiment provides a fertilizer synergistic composition, which comprises 25% of thiourea, 25% of dicyandiamide, 12.5% of citric acid and 37.5% of glucose in parts by mass, wherein the total sum is 100%.
The fertilizer synergistic composition of example 3 was applied by blending with compound fertilizer 22-6-8, blended in a proportion of 0.5%. The compound fertilizer contains nitrate nitrogen and ammonium nitrogen, wherein the ammonium nitrogen accounts for 52.7% of the total nitrogen. The compound fertilizer 22-6-8 (hereinafter referred to as synergistic compound fertilizer 22-6-8) mixed with the synergistic agent is used for planting Chinese cabbage. The fertilization scheme is as follows, the base fertilizer is applied with 15-15-15-25-30 kg of compound fertilizer per mu, the synergistic compound fertilizer is applied with 22-6-85-10 kg per mu in the seedling stage, and the synergistic compound fertilizer is applied with 22-6-8-25-30 kg per mu just before pelleting. The fertilization scheme of conventional fertilization is as follows: the base fertilizer is applied with 15-15-15-25-30 kg of compound fertilizer per mu, 22-6-85-10 kg of compound fertilizer per mu in the seedling stage, and 22-6-8-25-30 kg of compound fertilizer per mu just before pelleting. In the middle stage of the nodulizing growth, 22-6-8-15-20 kg of compound fertilizer is applied to each mu. The synergistic compound fertilizer 22-6-8 can increase the yield and improve the quality, reduce the fertilization times and save the labor. The beneficial effects are shown in table 3:
TABLE 3 Table 3
Example 4
The embodiment provides a fertilizer synergistic composition, which comprises 30% of thiourea, 20% of dicyandiamide, 15% of citric acid and 35% of glucose in parts by mass, wherein the total sum is 100%.
The fertilizer synergistic composition in example 4 is added into the granulation of compound fertilizer (17-5-25), the adding proportion is 1%, the proportion of amide nitrogen in the total nitrogen is 94%, and the synergistic compound fertilizer (17-5-25) is used for micro-sprinkling irrigation in fertigation. The conventional fertilizer and the fertilizer added with the synergistic agent are respectively used for irrigating and fertilizing watermelons in the same area, and the fertilization scheme is as follows: conventional fertilizer is applied, 8 kg of compound fertilizer (17-5-25) is applied to each mu in the seedling stage, and 15 kg of fertilizer is applied every 7 days until harvesting is performed until the vine stretching stage. The synergistic fertilizer is fertilized, 8 kg of compound fertilizer (17-5-25) is applied to the acre in the seedling stage, and 15 kg of fertilizer is applied every 10 days until harvesting. The watermelon yield, soluble sugars and disease resistance comparison results are shown in Table 4.
TABLE 4 Table 4
Example 5:
the embodiment provides a fertilizer synergistic composition, which comprises, by mass, 20% of thiourea, 30% of dicyandiamide, 10% of citric acid and 40% of glucose, wherein the total sum is 100%.
The synergistic fertilizer composition of example 5 was granulated and then blended with urea, ammonium phosphate particles and potassium chloride particles to form a synergistic blended fertilizer (25-11-15), the addition ratio was 1.5%, and the total nitrogen content of the amide nitrogen was 90%, hereinafter referred to as synergistic blended fertilizer (25-11-15). The conventional fertilizer and the fertilizer added with the synergistic agent are respectively used for fertilizing the corn with the same area, and the fertilization scheme is as follows: conventional fertilizer fertilization: base fertilizer, 40 kg of blended fertilizer (25-11-15) applied per mu, jointing period, 20 kg of blended fertilizer (25-11-15) applied per mu, and 30 kg of blended fertilizer (25-11-15) applied per mu in large bell mouth period. The synergistic fertilizer is applied, the base fertilizer and the synergistic blending fertilizer (25-11-15) are applied for 45 kg and the large bell mouth period is applied for 30 kg. The synergistic blended fertilizer (25-11-15) is applied to corn, so that the fertilizing amount and the fertilizing times can be reduced, the labor cost can be saved, and the result is shown in Table 5.
TABLE 5
In conclusion, the fertilizer synergistic composition provided by the invention can be applied in a foliar spraying mode, so that dormancy of crops can be broken, germination can be advanced, and cold-proof capability of the crops can be improved; the fertilizer is applied by means of spray irrigation, drip irrigation or flushing, so that the growth of crop root systems can be promoted, the quick-acting phosphorus content in soil can be improved, and the soil is loosened; when the fertilizer is mixed with the compound fertilizer for application, the yield and the quality can be increased, the fertilization times are reduced, and the construction cost is saved; the fertilizer synergistic composition is added during the granulation of the compound fertilizer, so that the application period of the fertilizer can be prolonged, the yield and the quality can be increased, and the disease resistance of crops can be improved; the fertilizer synergistic composition is added into the fertilizer for application after granulation, so that the fertilizing amount and the fertilizing times can be reduced, the fertilizing cost is reduced, and further, the water eutrophication caused by the loss of nitrogen and phosphorus in the fertilizer can be reduced, and the source of nitrate pollution of underground water is reduced.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (11)
1. Use of thiourea, dicyandiamide, citric acid and glucose in combination for the preparation of a fertiliser synergistic composition.
2. A fertilizer synergistic composition, which is characterized by comprising thiourea, dicyandiamide, citric acid and glucose.
3. The synergistic fertilizer composition as claimed in claim 2, wherein it comprises thiourea 20 to 40 parts, dicyandiamide 10 to 30 parts, citric acid 10 to 15 parts and glucose 25 to 60 parts by mass.
4. A fertilizer synergistic composition as claimed in claim 2 or claim 3, characterised in that the fertilizer synergistic composition comprises, in parts by mass, 25 to 40 parts of thiourea, 10 to 20 parts of dicyandiamide, 10 to 15 parts of citric acid and 25 to 50 parts of glucose.
5. A fertilizer synergistic composition as claimed in claim 2 or claim 3, characterised in that the fertilizer synergistic composition comprises, in parts by mass, 20 to 25 parts of thiourea, 10 to 15 parts of dicyandiamide, 10 to 15 parts of citric acid and 45 to 60 parts of glucose.
6. A fertilizer synergistic composition as claimed in claim 2 or claim 3, characterised in that the fertilizer synergistic composition comprises thiourea 20 to 30 parts, dicyandiamide 20 to 30 parts, citric acid 10 to 15 parts and glucose 25 to 50 parts.
7. A synergistic fertilizer comprising the synergistic fertilizer composition of claim 6 and at least one of urea, ammonium chloride, ammonium sulfate, nitrophosphate, water-soluble fertilizer, compound fertilizer, and blended fertilizer.
8. The synergistic fertilizer as claimed in claim 7, wherein the mass ratio of the synergistic fertilizer composition to the at least one fertilizer is (0.1 to 2): 100.
9. the synergistic fertilizer as claimed in claim 8, wherein the amide nitrogen in the water soluble fertilizer, compound fertilizer or blended fertilizer is 30 to 100% by weight of nitrogen or the ammonium nitrogen is 20 to 80% by weight of nitrogen.
10. Use of the synergistic fertilizer composition of claims 1 to 6 or the synergistic fertilizer of claims 7 to 9 for increasing crop yield, improving crop quality, improving crop stress resistance or promoting crop growth.
11. The use according to claim 10, characterized in that the fertilizer enhancing composition of claim 4 is applied to the crop by foliar spraying; or alternatively
Applying the fertilizer enhancing composition of claim 5 to a crop by one or more of drip irrigation, spray irrigation and flush application; or alternatively
The synergistic fertilizer of claim 9 applied to crops by one or more of furrow application, hole application, broadcast application, soil mixing application, flush application, drip irrigation, spray irrigation, foliar application, machine application.
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