Foliar fertilizer formula for improving cold resistance of tobacco seedlings

Abstract

The invention relates to the technical field of foliar fertilizer production, in particular to a foliar fertilizer formula for improving cold resistance of tobacco seedlings. The fertilizer is prepared from 58 to 89 parts of plant source compound amino acid, 36 to 59 parts of phosphate, 22 to 46 parts of urea, 24 to 35 parts of nitrogen phosphorus and potassium mixed solution, 43 to 55 parts of rare earth micro element fertilizer aqueous solution, 32 to 40 parts of sodium selenite, 28 to 40 parts of ethylenediamine tetraacetic acid, 30 to 47 parts of biochemical fulvic acid, 25 to 30 parts of monopotassium phosphate, 45 to 72 parts of compound sodium nitrophenolate, 14 to 35 parts of glucanase, 22 to 45 parts of xylanase, 50 to 68 parts of protease, 34 to 45 parts of cellulase, 40 to 56 parts of nutrient substance compounding agent and 33 to 45 parts of trace element compounding agent. The nutrient solution is prepared from 21-46 parts of seaweed leavening, 33-50 parts of clam shell powder, 6-35 parts of magnesium sulfate, 8-36 parts of wheat husk powder water solution and 4-20 parts of potassium sulfate. The invention has the beneficial effects of scientific preparation, balanced nutrition and proper proportion, and can effectively improve the cold resistance of tobacco seedlings, increase the survival rate and improve the economic benefit.

Description

Technical Field

[0001] The invention relates to the technical field of foliar fertilizer production, in particular to a foliar fertilizer formula for improving the cold resistance of tobacco seedlings. Background Art

[0002] Tobacco, an annual or limited perennial herb, Solanaceae. The plant is covered with glandular hairs, with a stem height of 0.7-2 meters. The petiole is not obvious or wing-shaped. The panicle inflorescence is terminal. The calyx is tubular or tubular bell-shaped, and the corolla is funnel-shaped with pink at the end.

[0003] The cold resistance of tobacco seedlings needs to be further improved during the planting process. In order to enhance the cold resistance of seedlings, a foliar fertilizer formula for improving the cold resistance of tobacco seedlings is proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the object of the present invention is to provide a foliar fertilizer formula for improving the cold resistance of tobacco seedlings.

[0005] In order to solve the above technical problems, the technical scheme provided by the present invention is as follows: a foliar fertilizer formula for improving the cold resistance of tobacco seedlings, which is mixed with the following raw materials in weight ratio: 58-89 parts of plant-derived composite amino acids, 36-59 parts of phosphates, 22-46 parts of urea, 24-35 parts of nitrogen, phosphorus and potassium mixed solution, 43-55 parts of rare earth micro-fertilizer aqueous solution, 32-40 parts of sodium selenite, 28-40 parts of ethylenediaminetetraacetic acid, 30-47 parts of biochemical humic acid, 25-30 parts of potassium dihydrogen phosphate, 45-72 parts of sodium nitrophenolate, 14-35 parts of glucanase, and 10-20 parts of sodium phosphate. 2-45 parts of xylanase, 50-68 parts of protease, 34-45 parts of cellulase, 40-56 parts of nutrient compounding agent, 33-45 parts of trace element compounding agent, 21-46 parts of seaweed fermentation product, 33-50 parts of clam shell crushed, 6-35 parts of magnesium sulfate, 8-36 parts of wheat bran crushed aqueous solution, 4-20 parts of potassium sulfate, 1-10 parts of humic acid, 3-15 parts of rare earth micro-fertilizer solution, 16-38 parts of wood ash, 20-45 parts of triacontanol, 2-12 parts of B vitamins, 16-40 parts of slaked lime and 10-25 parts of water.

[0006] Preferably, the weight ratio of the raw materials is: 60-72 parts of plant-derived composite amino acids, 40-46 parts of phosphates, 32-40 parts of urea, 26-32 parts of nitrogen, phosphorus and potassium mixed solution, 47-52 parts of rare earth micro-fertilizer aqueous solution, 34-38 parts of sodium selenite, 34-37 parts of ethylenediaminetetraacetic acid, 35-40 parts of biochemical humic acid, 26-28 parts of potassium dihydrogen phosphate, 50-64 parts of sodium nitrophenolate, 20-28 parts of glucanase, 34-41 parts of xylanase, and 57-64 parts of protease. 38-42 parts of cellulase, 46-52 parts of nutrient compounding agent, 36-41 parts of trace element compounding agent, 28-40 parts of seaweed fermentation product, 37-46 parts of clam shell powder, 8-15 parts of magnesium sulfate, 6-18 parts of wheat bran powder aqueous solution, 7-12 parts of potassium sulfate, 3-5 parts of humic acid, 8-10 parts of rare earth micro-fertilizer solution, 17-35 parts of wood ash, 23-30 parts of triacontanol, 8-11 parts of B vitamins, 18-25 parts of slaked lime and 13-17 parts of water.

[0007] Preferably, the weight ratio of the raw materials is: 60 parts of plant-derived composite amino acids, 40 parts of phosphates, 32 parts of urea, 26 parts of nitrogen, phosphorus and potassium mixed solution, 47 parts of rare earth micro-fertilizer aqueous solution, 34 parts of sodium selenite, 34 parts of ethylenediaminetetraacetic acid, 35 parts of biochemical humic acid, 26 parts of potassium dihydrogen phosphate, 50 parts of sodium nitrophenolate, 20 parts of glucanase, 34 parts of xylanase, 57 parts of protease, 38 parts of cellulase, 46 parts of nutrient compounding agent, 36 parts of trace element compounding agent, 28 parts of seaweed fermentation, 37 parts of clam shell powder, 8 parts of magnesium sulfate, 6 parts of wheat bran powder aqueous solution, 7 parts of potassium sulfate, 3 parts of humic acid, 8 parts of rare earth micro-fertilizer solution, 17 parts of wood ash, 23 parts of triacontanol, 8 parts of B vitamins, 18 parts of slaked lime and 13 parts of water.

[0008] The preparation method of the foliar fertilizer formula is characterized in that plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water are mixed, sterilized and packaged,

[0009] The specific preparation method comprises the following steps:

[0010] (1) The above raw materials are selected in greater than required portions, and the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, and cellulase are placed in a container and mixed;

[0011] (2) During the mixing process, the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water in the container are heated;

[0012] (3) After the container and the raw materials inside are cooled, nutrient compounding agent, trace element compounding agent, seaweed fermentation product, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are added into the container, and then the mixture is continued;

[0013] (4) sterilizing a mixture of plant-derived composite amino acids, phosphates, urea, a nitrogen, phosphorus and potassium mixed solution, a rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water through an equipment sterilization device;

[0014] (5) The sterilized plant-derived complex amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are packaged according to the required amount.

[0015] Preferably, the heating temperature in step (2) is controlled at 50-60°C.

[0016] The beneficial effects of the invention are: scientifically formulated balanced nutrition and appropriate proportions can effectively improve the cold resistance of tobacco seedlings, increase the survival rate, and improve economic benefits. DETAILED DESCRIPTION

[0017] The present invention is described below with specific embodiments, but is not intended to be limiting of the present invention.

[0018] Embodiment 1: The following raw materials are mixed in weight ratio: 60-72 parts of plant-derived composite amino acids, 40-46 parts of phosphate, 32-40 parts of urea, 26-32 parts of nitrogen, phosphorus and potassium mixed solution, 47-52 parts of rare earth micro-fertilizer aqueous solution, 34-38 parts of sodium selenite, 34-37 parts of ethylenediaminetetraacetic acid, 35-40 parts of biochemical humic acid, 26-28 parts of potassium dihydrogen phosphate, 50-64 parts of sodium nitrophenolate, 20-28 parts of glucanase, 34-41 parts of xylanase, 57-60 parts of protease. ~64 parts, cellulase 38-42 parts, nutrient compounding agent 46-52 parts, trace element compounding agent 36-41 parts, seaweed fermentation product 28-40 parts, clam shell powder 37-46 parts, magnesium sulfate 8-15 parts, wheat bran powder aqueous solution 6-18 parts, potassium sulfate 7-12 parts, humic acid 3-5 parts, rare earth micro-fertilizer solution 8-10 parts, wood ash 17-35 parts, triacontanol 23-30 parts, B vitamins 8-11 parts, slaked lime 18-25 parts and water 13-17 parts.

[0019] Preferably, the weight ratio of the raw materials is: 60 parts of plant-derived composite amino acids, 40 parts of phosphates, 32 parts of urea, 26 parts of nitrogen, phosphorus and potassium mixed solution, 47 parts of rare earth micro-fertilizer aqueous solution, 34 parts of sodium selenite, 34 parts of ethylenediaminetetraacetic acid, 35 parts of biochemical humic acid, 26 parts of potassium dihydrogen phosphate, 50 parts of sodium nitrophenolate, 20 parts of glucanase, 34 parts of xylanase, 57 parts of protease, 38 parts of cellulase, 46 parts of nutrient compounding agent, 36 parts of trace element compounding agent, 28 parts of seaweed fermentation, 37 parts of clam shell powder, 8 parts of magnesium sulfate, 6 parts of wheat bran powder aqueous solution, 7 parts of potassium sulfate, 3 parts of humic acid, 8 parts of rare earth micro-fertilizer solution, 17 parts of wood ash, 23 parts of triacontanol, 8 parts of B vitamins, 18 parts of slaked lime and 13 parts of water.

[0020] The preparation method of the foliar fertilizer formula is characterized in that plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water are mixed, sterilized and packaged,

[0021] The specific preparation method comprises the following steps:

[0022] (1) The above raw materials are selected in greater than required portions, and the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, and cellulase are placed in a container and mixed;

[0023] (2) During the mixing process, the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water in the container are heated;

[0024] (3) After the container and the raw materials inside are cooled, nutrient compounding agent, trace element compounding agent, seaweed fermentation product, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are added into the container, and then the mixture is continued;

[0025] (4) sterilizing a mixture of plant-derived composite amino acids, phosphates, urea, a nitrogen, phosphorus and potassium mixed solution, a rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water through an equipment sterilization device;

[0026] (5) The sterilized plant-derived complex amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are packaged according to the required amount.

[0027] Preferably, the heating temperature in step (2) is controlled at 50-60°C.

[0028] Embodiment 2: The following raw materials are mixed in weight ratio: 60-72 parts of plant-derived composite amino acids, 40-46 parts of phosphate, 32-40 parts of urea, 26-32 parts of nitrogen, phosphorus and potassium mixed solution, 47-52 parts of rare earth micro-fertilizer aqueous solution, 34-38 parts of sodium selenite, 34-37 parts of ethylenediaminetetraacetic acid, 35-40 parts of biochemical humic acid, 26-28 parts of potassium dihydrogen phosphate, 50-64 parts of sodium nitrophenolate, 20-28 parts of glucanase, 34-41 parts of xylanase, 57-60 parts of protease. ~64 parts, cellulase 38-42 parts, nutrient compounding agent 46-52 parts, trace element compounding agent 36-41 parts, seaweed fermentation product 28-40 parts, clam shell powder 37-46 parts, magnesium sulfate 8-15 parts, wheat bran powder aqueous solution 6-18 parts, potassium sulfate 7-12 parts, humic acid 3-5 parts, rare earth micro-fertilizer solution 8-10 parts, wood ash 17-35 parts, triacontanol 23-30 parts, B vitamins 8-11 parts, slaked lime 18-25 parts and water 13-17 parts.

[0029] Preferably, the weight ratio of the raw materials is: 72 parts of plant-derived composite amino acids, 46 parts of phosphates, 40 parts of urea, 32 parts of nitrogen, phosphorus and potassium mixed solution, 52 parts of rare earth micro-fertilizer aqueous solution, 38 parts of sodium selenite, 37 parts of ethylenediaminetetraacetic acid, 40 parts of biochemical humic acid, 28 parts of potassium dihydrogen phosphate, 64 parts of sodium nitrophenolate, 28 parts of glucanase, 41 parts of xylanase, 64 parts of protease, 42 parts of cellulase, 52 parts of nutrient compounding agent, 41 parts of trace element compounding agent, 40 parts of seaweed fermentation, 46 parts of clam shell fragments, 15 parts of magnesium sulfate, 18 parts of wheat bran fragment aqueous solution, 12 parts of potassium sulfate, 5 parts of humic acid, 10 parts of rare earth micro-fertilizer solution, 35 parts of wood ash, 30 parts of triacontanol, 11 parts of B vitamins, 25 parts of slaked lime and 17 parts of water.

[0030] The preparation method of the foliar fertilizer formula is characterized in that plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water are mixed, sterilized and packaged,

[0031] The specific preparation method comprises the following steps:

[0032] (1) The above raw materials are selected in greater than required portions, and the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, and cellulase are placed in a container and mixed;

[0033] (2) During the mixing process, the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water in the container are heated;

[0034] (3) After the container and the raw materials inside are cooled, nutrient compounding agent, trace element compounding agent, seaweed fermentation product, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are added into the container, and then the mixture is continued;

[0035] (4) sterilizing a mixture of plant-derived composite amino acids, phosphates, urea, a nitrogen, phosphorus and potassium mixed solution, a rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water through an equipment sterilization device;

[0036] (5) The sterilized plant-derived complex amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are packaged according to the required amount.

[0037] Preferably, the heating temperature in step (2) is controlled at 50-60°C.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foliar fertilizer formula for improving the cold resistance of tobacco seedlings, characterized in that: The invention is prepared by mixing the following raw materials in weight proportion: 58-89 parts of plant-derived composite amino acids, 36-59 parts of phosphates, 22-46 parts of urea, 24-35 parts of nitrogen, phosphorus and potassium mixed solution, 43-55 parts of rare earth micro-fertilizer aqueous solution, 32-40 parts of sodium selenite, 28-40 parts of ethylenediaminetetraacetic acid, 30-47 parts of biochemical humic acid, 25-30 parts of potassium dihydrogen phosphate, 45-72 parts of sodium nitrophenolate, 14-35 parts of glucanase, 22-45 parts of xylanase and 50-68 parts of protease. 34-45 parts of cellulase, 40-56 parts of nutrient compounding agent, 33-45 parts of trace element compounding agent, 21-46 parts of seaweed fermentation product, 33-50 parts of clam shell powder, 6-35 parts of magnesium sulfate, 8-36 parts of wheat bran powder aqueous solution, 4-20 parts of potassium sulfate, 1-10 parts of humic acid, 3-15 parts of rare earth micro-fertilizer solution, 16-38 parts of wood ash, 20-45 parts of triacontanol, 2-12 parts of B vitamins, 16-40 parts of slaked lime and 10-25 parts of water.

2. A foliar fertilizer formula for improving the cold resistance of tobacco seedlings according to claim 1, characterized in that: The weight ratio of the raw materials is: 60-72 parts of plant-derived composite amino acids, 40-46 parts of phosphates, 32-40 parts of urea, 26-32 parts of nitrogen, phosphorus and potassium mixed solution, 47-52 parts of rare earth micro-fertilizer aqueous solution, 34-38 parts of sodium selenite, 34-37 parts of ethylenediaminetetraacetic acid, 35-40 parts of biochemical humic acid, 26-28 parts of potassium dihydrogen phosphate, 50-64 parts of sodium nitrophenolate, 20-28 parts of glucanase, 34-41 parts of xylanase, 57-64 parts of protease, 38-42 parts of cellulase, 46-52 parts of nutrient compounding agent, 36-41 parts of trace element compounding agent, 28-40 parts of seaweed fermentation product, 37-46 parts of clam shell powder, 8-15 parts of magnesium sulfate, 6-18 parts of wheat bran powder aqueous solution, 7-12 parts of potassium sulfate, 3-5 parts of humic acid, 8-10 parts of rare earth micro-fertilizer solution, 17-35 parts of wood ash, 23-30 parts of triacontanol, 8-11 parts of B vitamins, 18-25 parts of slaked lime and 13-17 parts of water.

3. A foliar fertilizer formula for improving the cold resistance of tobacco seedlings according to claims 1-2, characterized in that: The weight ratio of the raw materials is: 60 parts of plant-derived composite amino acids, 40 parts of phosphate, 32 parts of urea, 26 parts of nitrogen, phosphorus and potassium mixed solution, 47 parts of rare earth micro-fertilizer aqueous solution, 34 parts of sodium selenite, 34 parts of ethylenediaminetetraacetic acid, 35 parts of biochemical humic acid, 26 parts of potassium dihydrogen phosphate, 50 parts of sodium nitrophenolate, 20 parts of glucanase, 34 parts of xylanase, 57 parts of protease, 38 parts of cellulase. , 46 parts of nutrient compounding agent, 36 parts of trace element compounding agent, 28 parts of seaweed fermentation, 37 parts of clam shell powder, 8 parts of magnesium sulfate, 6 parts of wheat bran powder aqueous solution, 7 parts of potassium sulfate, 3 parts of humic acid, 8 parts of rare earth micro-fertilizer solution, 17 parts of wood ash, 23 parts of triacontanol, 8 parts of B vitamins, 18 parts of slaked lime and 13 parts of water.

4. A method for preparing the foliar fertilizer formulation according to any one of claims 1 to 3, characterized in that: The plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water are mixed, sterilized and packaged. The specific preparation method comprises the following steps: (1) The above raw materials are selected in greater than required portions, and the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, and cellulase are placed in a container and mixed; (2) During the mixing process, the plant-derived composite amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solutions, rare earth micro-fertilizer aqueous solutions, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compounding agents, trace element compounding agents, seaweed fermentation products, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water in the container are heated; (3) After the container and the raw materials inside are cooled, nutrient compounding agent, trace element compounding agent, seaweed fermentation product, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are added into the container, and then the mixture is continued; (4) sterilizing a mixture of plant-derived composite amino acids, phosphates, urea, a nitrogen, phosphorus and potassium mixed solution, a rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, plant ash, triacontanol, B vitamins, slaked lime and water through an equipment sterilization device; (5) The sterilized plant-derived complex amino acids, phosphates, urea, nitrogen, phosphorus and potassium mixed solution, rare earth micro-fertilizer aqueous solution, sodium selenite, ethylenediaminetetraacetic acid, biochemical humic acid, potassium dihydrogen phosphate, sodium nitrophenolate, glucanase, xylanase, protease, cellulase, nutrient compound, trace element compound, seaweed fermentation, clam shell powder, magnesium sulfate, wheat bran powder aqueous solution, potassium sulfate, humic acid, rare earth micro-fertilizer solution, wood ash, triacontanol, B vitamins, slaked lime and water are packaged according to the required amount.

5. A foliar fertilizer formula for improving the cold resistance of tobacco seedlings according to claim 4, characterized in that: In the step (2), the heating temperature is controlled at 50-60°C.