CN111499465A - Total-nutrient high-potassium liquid foliar fertilizer for improving strawberry quality and application method thereof - Google Patents
Total-nutrient high-potassium liquid foliar fertilizer for improving strawberry quality and application method thereof Download PDFInfo
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- 239000011591 potassium Substances 0.000 title claims abstract description 62
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 62
- 239000003337 fertilizer Substances 0.000 title claims abstract description 56
- 239000007788 liquid Substances 0.000 title claims abstract description 33
- 235000016623 Fragaria vesca Nutrition 0.000 title claims abstract description 22
- 235000011363 Fragaria x ananassa Nutrition 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 13
- 240000009088 Fragaria x ananassa Species 0.000 title 1
- 241000220223 Fragaria Species 0.000 claims abstract description 43
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 239000011573 trace mineral Substances 0.000 claims abstract description 12
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 12
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims abstract description 6
- 239000011550 stock solution Substances 0.000 claims abstract description 5
- 239000011575 calcium Substances 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 30
- 239000011777 magnesium Substances 0.000 claims description 29
- 239000011701 zinc Substances 0.000 claims description 29
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 claims description 20
- 239000002509 fulvic acid Substances 0.000 claims description 20
- 229940095100 fulvic acid Drugs 0.000 claims description 20
- 229910052791 calcium Inorganic materials 0.000 claims description 17
- 235000015097 nutrients Nutrition 0.000 claims description 16
- 229910052796 boron Inorganic materials 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 229910052749 magnesium Inorganic materials 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 11
- 239000011574 phosphorus Substances 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 10
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 10
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 8
- 229910021538 borax Inorganic materials 0.000 claims description 7
- 239000004328 sodium tetraborate Substances 0.000 claims description 7
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- -1 Ca + Mg Chemical compound 0.000 claims description 3
- 229910052792 caesium Inorganic materials 0.000 claims description 2
- 235000016709 nutrition Nutrition 0.000 claims description 2
- 230000035764 nutrition Effects 0.000 claims description 2
- 235000021012 strawberries Nutrition 0.000 abstract description 22
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 abstract description 4
- 229930003268 Vitamin C Natural products 0.000 abstract description 4
- 239000011718 vitamin C Substances 0.000 abstract description 4
- 235000019154 vitamin C Nutrition 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000008485 antagonism Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000000243 solution Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 230000002950 deficient Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910004835 Na2B4O7 Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 235000010208 anthocyanin Nutrition 0.000 description 1
- 229930002877 anthocyanin Natural products 0.000 description 1
- 239000004410 anthocyanin Substances 0.000 description 1
- 150000004636 anthocyanins Chemical class 0.000 description 1
- 230000006851 antioxidant defense Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930003935 flavonoid Natural products 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 235000018343 nutrient deficiency Nutrition 0.000 description 1
- 235000021048 nutrient requirements Nutrition 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
- C05G5/23—Solutions
Abstract
The invention discloses a total-nutrient high-potassium liquid foliar fertilizer for improving the quality of strawberries and an application method thereof. The method adopts a metal medium trace element full-chelating mode to eliminate chemical antagonism among elements, adopts chemical synergistic effect of multiple potassium raw materials to reach high potassium content, and prepares the full-nutrition type liquid foliar fertilizer which exceeds the agricultural industry standard (NY 1107-; and spraying the foliage fertilizer in the flowering period and the fruit expansion period of the strawberries, wherein the dosage of the full-nutrient high-potassium liquid foliar fertilizer stock solution per mu is 100 milliliters, and the full-nutrient high-potassium liquid foliar fertilizer stock solution is diluted by 500 times by adding water for use. Compared with clear water control, the soluble solid content of the strawberry is improved by more than 15%, the soluble sugar content is improved by more than 50%, the sugar-acid ratio is improved by more than 40%, and the vitamin C content is improved by more than 60%.
Description
Technical Field
The invention relates to a chemical fertilizer and an application method thereof, in particular to a full-nutrient high-potassium liquid foliar fertilizer for improving the quality of strawberries and an application method thereof.
Background
The strawberry is bright in color, fresh, tender and succulent, sour, sweet, tasty, low in calorie, and rich in a large amount of dietary fibers, minerals, vitamin C, total phenols, flavonoids and anthocyanins, and the function of an antioxidant defense system of an organism can be enhanced by eating the strawberry.
The strawberries are rich in necessary nutrient elements, and normal growth of the strawberries can be influenced by nutrient deficiency, such as small nitrogen-deficient leaves of the strawberries, blackened phosphorus-deficient leaves, hindered tip growth, dark or even necrotic leaves of potassium-deficient old leaves, calcium-deficient hard fruits and the like. The phosphorus can promote strawberry berry ripening, improve pigment and aromatic substances and reduce acid content; potassium is a quality element of strawberries, and improves the sugar content, flavor, color and luster of fruits and the surface smoothness of the fruits; the calcium-rich strawberry has good toughness and much juice; magnesium promotes the formation of vitamin A and vitamin C of the strawberries, and enhances the cold-resistant and overwintering capacity of plants; boron can improve the fruit setting rate of the strawberries, reduce unfertilized fruits and improve the yield; the iron can increase the chlorophyll content in strawberry leaves, promote photosynthesis and improve the content of soluble sugar; zinc can improve cold resistance and salt tolerance of strawberry, increase flower bud number, and increase single fruit weight, thereby improving yield. The potassium fulvate promotes the absorption of the strawberries on nutrient elements, promotes the synthesis of carbohydrates, improves the absorption and conversion of nutrients and improves the quality.
The strawberry has high planting density and strong fertilizer absorption capacity. The method adopts foliage spraying for topdressing, has the characteristics of less fertilizer dosage, complete nutrients, quick response, convenient operation and the like, and is the most effective way for conditioning the nutrition of the strawberries. Therefore, it is necessary to develop a full-nutrient high-potassium liquid foliar fertilizer containing nitrogen, phosphorus, potassium, calcium, magnesium, zinc, boron, iron, etc. for improving the quality of strawberries, and a foliar topdressing period and method thereof.
Disclosure of Invention
Research shows that the strawberry field planting to the flowering period, the fruit expansion period, the mature period and the strawberry harvest period are 3 key stages of the strawberry fertilizer requirement. On the basis of applying the base fertilizer, the fertilizer is applied to the leaves at the flowering period and the fruit expansion period of the strawberries, so that the nutrients necessary for the strawberries are stably absorbed, the rapid nutrient requirement of the strawberries at the peak period is met, the nitrogen, phosphorus, potassium and medium trace elements are rapidly supplemented, the cell protoplasm flow is promoted, and the remarkable effects of green leaves, expansion, color enhancement and fruit beautifying are achieved; the disease resistance, drought resistance and cold resistance of the strawberries are improved.
The invention provides a full-nutrition high-potassium liquid foliar fertilizer for improving the quality of strawberries and an application method thereof, aiming at the fertilizer requirement rule of strawberries.
The invention relates to a total-nutrient high-potassium liquid foliar fertilizer for improving the quality of strawberries, which comprises major elements of nitrogen, phosphorus and potassium, secondary elements of calcium and magnesium, trace elements of boron, zinc and iron, and fulvic acid. Wherein, nitrogen in macroelements is from urea, phosphorus is from potassium dihydrogen phosphate, and potassium is from potassium dihydrogen phosphate, potassium hydroxide and potassium fulvate; calcium in the secondary elements is derived from EDTA-Ca, and magnesium is derived from EDTA-Mg; boron in the trace elements is from borax and/or boric acid, zinc is from EDTA-Zn, and iron is from EDTA-Fe; the fulvic acid is derived from potassium fulvate.
The total-nutrient high-potassium liquid foliar fertilizer provided by the invention implements the people's community of ChinaAnd the national agricultural macroelement water-soluble fertilizer industry standard, but the technical index is higher than the standard. The total nutrient high-potassium liquid foliar fertilizer contains macroelements of nitrogen (counted as N) and phosphorus (counted as P)2O5Calculated as K), potassium (in K)2Calculated as O) total content, i.e. N + P2O5+K2500-510 g/L, the total content of the secondary elements of calcium (calculated as Ca) and magnesium (calculated as Mg), namely Ca + Mg 3 g/L, the total content of the trace elements of boron (calculated as B), zinc (calculated as Zn) and iron (calculated as Fe), namely B + Zn + Fe 7 g/L, and the content of fulvic acid is 2 g/L, and K is2O:N:P2O5＝(2.5-3):1.4:1，Ca:Mg＝(1.5-2):1，B:Zn:Fe＝(1-1.5):1:1。
The full-nutrient high-potassium liquid foliar fertilizer is prepared according to the following processes:
(1) adding a certain amount of water into a reaction kettle, and heating to about 40 ℃;
(2) adding metered potassium dihydrogen phosphate into water in a reaction kettle, stirring and dissolving, and maintaining the temperature at about 40 ℃ for no less than 30 min;
(3) slowly adding metered potassium hydroxide into the solution in the reaction kettle, stirring, reacting and neutralizing, controlling the feeding speed according to the heat exchange or heat dissipation speed, and keeping the solution in the kettle not to boil;
(4) after the potassium hydroxide feeding is finished, adding metered potassium fulvate into the solution in the reaction kettle, stirring and dissolving for 10-20 min;
(5) sequentially adding the measured EDTA-Ca, EDTA-Mg, EDTA-Fe, EDTA-Zn, borax or boric acid into the solution in the reaction kettle, stirring and dissolving, wherein the time interval between each feeding is 10 min;
(6) adding metered urea into the solution in the reaction kettle, and stirring until the urea is completely dissolved;
(7) filtering to remove water insoluble substances to obtain the total-nutrient high-potassium liquid foliar fertilizer.
The application method of the full-nutrient high-potassium liquid foliar fertilizer comprises the following steps:
spraying the fertilizer on each leaf surface of each strawberry in the flowering period and the fruit expansion period, wherein the dosage of the total-nutrient high-potassium liquid leaf surface fertilizer stock solution per mu is 100 milliliters, and the fertilizer is diluted by 500 times by adding water for use.
The invention adopts a metal medium trace element full-chelating mode to eliminate chemical antagonism among elements, adopts chemical synergistic effect of a plurality of potassium raw materials to reach high potassium content, and prepares the full-nutrition high-potassium liquid foliar fertilizer which exceeds the agricultural industry standard (NY 1107-. Compared with the clear water control, the soluble solid content is improved by more than 15%, the soluble sugar content of the strawberry is improved by more than 50%, the sugar-acid ratio is improved by more than 40%, and the vitamin C content is improved by more than 60%.
Detailed Description
1. Raw material preparation
Potassium dihydrogen phosphate (HG/T4511-2013 KH)2PO4≥99.0％，K2O≥34.0％，P2O5More than or equal to 51.6 percent), EDTA-Ca (more than or equal to 9.5 percent of Ca), EDTA-Mg (more than or equal to 5.8 percent of Mg), EDTA-Fe (more than or equal to 12.8 percent of Fe), EDTA-Zn (more than or equal to 14.5 percent of Zn), borax (more than or equal to 10.77 percent of GB/T537-2009B and Na2B4O7·10H2O), boric acid (GB/T538-2006B is more than or equal to 17.32 percent), urea (GB/T2440 ≥ 2017N is more than or equal to 46.0 percent), potassium hydroxide (GB/T1919-2O is more than or equal to 79.7 percent), potassium fulvate (HG/T5334-containing sodium formaldehyde succinate 2018, fulvic acid is more than or equal to 50 percent, K2O is more than or equal to 8 percent) and water is reserved.
2. Product preparation process
(1) Adding a certain amount of water into a heating reaction kettle, and heating to 40 ℃;
(2) adding metered potassium dihydrogen phosphate into water in a reaction kettle, stirring and dissolving at about 40 ℃ for no less than 30 min;
(3) slowly adding metered potassium hydroxide into the solution in the reaction kettle, stirring, reacting and neutralizing, and controlling the feeding speed according to the heat exchange or heat dissipation speed to ensure that the solution in the kettle does not boil;
(4) after the potassium hydroxide feeding is finished, adding metered potassium fulvate into the solution in the reaction kettle, stirring and dissolving for 10-20 min;
(5) sequentially adding the measured EDTA-Ca, EDTA-Mg, EDTA-Fe, EDTA-Zn, borax or boric acid into the solution in the reaction kettle, stirring and dissolving, wherein the time interval between each feeding is 10 min;
(6) adding metered urea into the solution in the reaction kettle, and stirring until the urea is completely dissolved.
(7) Filtering to remove insoluble substances to obtain the full-nutrient high-potassium liquid foliar fertilizer for later use.
3. Fertilizer case (by mass)
3.1 case 1 of Total nutrient high-potassium type liquid foliar fertilizer
198 parts of monopotassium phosphate (K)2O 67.32，P2O5102.17), 235.5 portions of potassium hydroxide (K)2O187.69), 4 portions of fulvic acid potassium (fulvic acid 2, K)2O0.32), EDTA-Ca 21 parts (Ca 2.00), EDTA-Mg17.3 parts (Mg1.00), EDTA-Fe15.6 parts (Fe2.00), EDTA-Zn13.8 parts (Zn2.00), borax 27.9 parts (B3.01), urea 310.8 parts (N142.97) and water 491.7 parts for later use.
The present case: n + P2O5+K2500.47 g/L g/3.00 g/L g/Ca + Mg, 7.01 g/L g/B + Zn + Fe, 2 g/L g/fulvic acid, wherein K is2O:N:P2O5＝2.5:1.4:1，Ca:Mg＝2:1，B:Zn:Fe＝1.5:1:1。
3.2 case 2 of Total nutrient high-potassium type liquid foliar fertilizer
180 portions of potassium dihydrogen phosphate (K)2O 61.2，P2O592.88), 271.4 parts of potassium hydroxide (K)2O216.30), 4 portions of fulvic acid potassium (fulvic acid 2, K)2O0.32), EDTA-Ca 19.0 parts (Ca 1.805), EDTA-Mg20.7 parts (Mg1.201), EDTA-Fe15.6 parts (Fe2.00), EDTA-Zn13.8 parts (Zn2.00), borax 27.9 parts (B3.01), urea 281.9 parts (N129.67) and water 501.3 parts for later use.
The present case: n + P2O5+K2500.4 g/L g/3.0 g/L g/Ca + Mg, 7.0 g/L g/B + Zn + Fe, 2 g/L g/fulvic acid, wherein K is2O:N:P2O5＝3.0:1.4:1，Ca:Mg＝1.5:1，B:Zn:Fe＝1.5:1:1。
3.3 case 3 of Total nutrient high-potassium type liquid foliar fertilizer
193.8 parts of monopotassium phosphate (K)2O 65.89，P2O5100.00), 255.7 parts of potassium hydroxide (K)2O203.79), 4 portions of fulvic acid potassium (fulvic acid 2, K)2O 0.32)、EDT19.0 parts of A-Ca (Ca 1.805), 20.7 parts of EDTA-Mg1.201, 18.3 parts of EDTA-Fe2.34, 16.2 parts of EDTA-Zn2.35, 13.5 parts of boric acid (B2.34), 304.5 parts of urea (N140.07) and 489.9 parts of water for later use.
The present case: n + P2O5+K2510 g/L percent of O, 3.01 g/L percent of Ca + Mg, 7.03 g/L percent of B + Zn + Fe and 2 g/L percent of fulvic acid, wherein K is2O:N:P2O5＝2.7:1.4:1，Ca:Mg＝1.5:1，B:Zn:Fe＝1:1:1。
4. Application case
The implementation place is as follows: the experiment is carried out in the strawberry greenhouse in the large polder town of the river area of the Hefei city.
Designing a field block: the strawberries are planted in 2019, 9 and 10 days, the planting distance is 20cm, the row spacing is 40cm, and on the basis of conventional root fertilization of fruit growers, foliar fertilization is added for 7 treatments. Each treatment was repeated 3 times, each cell area being 20m2The treatment 1 comprises spraying case 1 total nutrient high-potassium type liquid foliar fertilizer, treatment 2 comprises spraying case 2 total nutrient high-potassium type liquid foliar fertilizer, treatment 3 comprises spraying case 3 total nutrient high-potassium type liquid foliar fertilizer, and treatment 4 comprises spraying macroelement water-soluble fertilizer (N is 131 g/L, P is 131 g/L)2O5＝170g/L、K2The method comprises the following steps of O205 g/L and Mo 2 g/L, spraying a secondary element water-soluble fertilizer (Mg 34 g/L0, Ca 70 g/L1 and N80 g/L), spraying a trace element water-soluble fertilizer (Zn 50 g/L, Mn 28 g/L, B7 g/L, Fe 7 g/L, Cu 5 g/L and Mo 5 g/L), spraying potassium fulvate (fulvic acid 2 g/L) and spraying clear water (CK) in an equivalent amount.
And (3) fertilizing period: spraying the fertilizer once in the flowering period and the fruit expansion period of each strawberry crop, and taking 3 ml of fertilizer stock solution and adding 1.5 liters of water (diluted by 500 times) in each plot.
Strawberry quality (all the detected strawberries are picked in the third crop):
TABLE 1 strawberry quality List
5. Discussion of the related Art
5.1 treatment 1, treatment2 and treatment 3 are the total nutrient high potassium type liquid foliar fertilizer of the present invention (containing N, P)2O5、K2O, Ca, Mg, B, Zn, Fe, fulvic acid); treatment 4 was a macroelement water soluble fertilizer (containing N, P)2O5、K2O, Mo) and treatment 5 is a medium element water-soluble fertilizer (containing Ca, Mg and N); treatment 6 is a water-soluble fertilizer containing trace elements (Mn, Mo, B, Zn, Fe and Cu); treatment 7 was a single aqueous solution of potassium fulvate (containing fulvic acid, K)2O); table 1 shows that treatment 4, treatment 5, treatment 6, and treatment 7 all performed better than the clear water control, while treatment 1, treatment 2, and treatment 3 all performed better than the other treatments.
5.2 the invention is a full-nutrition high-potassium liquid foliar fertilizer containing major elements of nitrogen, phosphorus and potassium, middle elements of calcium and magnesium and trace elements of zinc, iron and boron, and contains fulvic acid. Since strawberries are very sensitive to potassium reaction, calcium is most easily fixed by soil, and boron deficiency area is largest in China, K in the formula2The contents of O, Ca and B are properly adjusted according to the contents of the quick-acting potassium, the effective calcium and the effective boron in the strawberry field soil.
5.3 the product technical index analysis and execution standard of the invention are shown in Table 2.
TABLE 2 macroelement water-soluble fertilizer liquid product technical index
Claims (4)
1. The utility model provides a improve full nutrition high potassium type liquid foliar fertilizer of strawberry quality which characterized in that:
the total-nutrient high-potassium liquid foliar fertilizer comprises macroelements of nitrogen, phosphorus and potassium, secondary elements of calcium and magnesium, trace elements of boron, zinc and iron and fulvic acid;
the total content of the macroelements of nitrogen, phosphorus and potassium is N + P2O5+K2500-510 g/L, 3 g/L of the total content of the secondary elements of calcium and magnesium, namely Ca + Mg, 7 g/L of the total content of the trace elements of boron, zinc and iron, namely B + Zn + Fe, and 2 g/L of the fulvic acid.
2. The total nutrient high-potassium liquid foliar fertilizer of claim 1, wherein:
k in the full-nutrient high-potassium liquid foliar fertilizer2O:N:P2O5＝(2.5-3):1.4:1，Ca:Mg＝(1.5-2):1，B:Zn:Fe＝(1-1.5):1:1。
3. The total nutrient high-potassium liquid foliar fertilizer of claim 1, wherein:
the nitrogen in the macroelements is from urea, the phosphorus is from potassium dihydrogen phosphate, and the potassium is from potassium dihydrogen phosphate, potassium hydroxide and potassium fulvate; calcium in the secondary elements is derived from EDTA-Ca, and magnesium is derived from EDTA-Mg; boron in the trace elements is from borax and/or boric acid, zinc is from EDTA-Zn, and iron is from EDTA-Fe; the fulvic acid is derived from potassium fulvate.
4. A method of using the total nutrient high potassium type liquid foliar fertiliser as claimed in any one of claims 1 to 3 wherein:
spraying the fertilizer on each leaf surface of each strawberry in the flowering period and the fruit expansion period, wherein the dosage of the total-nutrient high-potassium liquid leaf surface fertilizer stock solution per mu is 100 milliliters, and the fertilizer is diluted by 500 times by adding water for use.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112493064A (en) * | 2021-01-08 | 2021-03-16 | 蔡楠 | Cultivation method of strawberry with high SOD content and fertilizer for cultivation |
| CN113307688A (en) * | 2021-06-24 | 2021-08-27 | 山东万物新农业科技有限公司 | Production and application method of spray fertilizer for increasing yield, improving quality and increasing efficiency by saving chemical fertilizer and pesticide for crops by 50% and 30% |
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| CN1621394A (en) * | 2003-11-28 | 2005-06-01 | 中国科学院东北地理与农业生态研究所 | Special nutrient solution for strawberry soilless culture and preparation and use method thereof |
| CN102807416A (en) * | 2011-06-01 | 2012-12-05 | 中国科学院化学研究所 | All-nutritional compound type liquid fertilizer for being sprayed to plant leaf surfaces and preparation method thereof |
| CN106518318A (en) * | 2016-10-19 | 2017-03-22 | 史丹利农业集团股份有限公司 | Leaf fertilizer special for strawberries and production method of leaf fertilizer |
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2020
- 2020-06-23 CN CN202010580693.1A patent/CN111499465A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621394A (en) * | 2003-11-28 | 2005-06-01 | 中国科学院东北地理与农业生态研究所 | Special nutrient solution for strawberry soilless culture and preparation and use method thereof |
| CN102807416A (en) * | 2011-06-01 | 2012-12-05 | 中国科学院化学研究所 | All-nutritional compound type liquid fertilizer for being sprayed to plant leaf surfaces and preparation method thereof |
| CN106518318A (en) * | 2016-10-19 | 2017-03-22 | 史丹利农业集团股份有限公司 | Leaf fertilizer special for strawberries and production method of leaf fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112493064A (en) * | 2021-01-08 | 2021-03-16 | 蔡楠 | Cultivation method of strawberry with high SOD content and fertilizer for cultivation |
| CN113307688A (en) * | 2021-06-24 | 2021-08-27 | 山东万物新农业科技有限公司 | Production and application method of spray fertilizer for increasing yield, improving quality and increasing efficiency by saving chemical fertilizer and pesticide for crops by 50% and 30% |
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