Water-soluble fertilizer containing nano silicon dioxide and application method of water-soluble fertilizer

Abstract

The invention belongs to the technical field of fertilizers, and discloses a nano-silica-containing water-soluble fertilizer, which comprises the following components: a nitrogen source, a phosphorus source, a potassium source, trace elements, nano-silica, a stabilizer and a pH regulator. The application method of the water-soluble fertilizer containing the nano silicon dioxide comprises the following steps: S1, preparation before fertilization; s2, preparing a fertilizer solution; s3, applying a fertilizer; s4, management after application; the pre-fertilization preparation comprises crop demand confirmation, soil condition measurement and fertilization tool preparation, the fertilizer solution preparation comprises fertilization amount calculation and fertilizer dissolution, the fertilizer application comprises drip irrigation, spray irrigation and fertigation, and the post-fertilization management comprises irrigation management, crop reaction monitoring, fertilization supplementation and fertilization condition recording. By adding the nano silicon dioxide, the permeability and adhesiveness of the fertilizer are enhanced, so that the fertilizer can be more effectively absorbed and utilized by crops, and the utilization rate of the fertilizer is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizers, and in particular relates to a water-soluble fertilizer containing nano silicon dioxide and an application method thereof. Background Art

[0002] Water-soluble fertilizers refer to fertilizers that can be completely dissolved in water. After this fertilizer forms a solution in water, plants can directly absorb its nutrients through their roots or leaves. Water-soluble fertilizers usually contain the main elements (such as nitrogen, phosphorus, potassium) and secondary elements (such as calcium, magnesium, sulfur) and trace elements (such as iron, manganese, zinc, copper, etc.) required for plant growth. These fertilizers are widely used in agriculture, gardening, lawns, greenhouses and other fields, and are particularly suitable for environments that require precise control of nutrient supply. Water-soluble fertilizers are an efficient and fast fertilization tool, suitable for agricultural production that requires precise control of nutrients, especially in modern smart agriculture and greenhouse cultivation, the application of water-soluble fertilizers plays an important role.

[0003] In modern agriculture, pesticides are an important means to reduce plant diseases and insect pests and improve agricultural production efficiency. However, most chemical synthetic pesticides currently have problems such as biological toxicity, drug resistance and environmental hazards, and the effective utilization rate of traditional pesticide formulations is low. In order to solve these problems, it is urgent to introduce new and efficient plant disease and insect pest control technologies to reduce the abuse of chemical pesticides and promote the sustainable development of agriculture. For this reason, it is crucial to use non-toxic fertilizers to achieve fertilization and pest control at the same time. Summary of the invention

[0004] The object of the present invention is to provide a water-soluble fertilizer containing nano-silicon dioxide and an application method thereof, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a water-soluble fertilizer containing nano-silicon dioxide, comprising the following components: a nitrogen source, a phosphorus source, a potassium source, trace elements, nano-silicon dioxide, a stabilizer and a pH regulator;

[0006] A method for applying a water-soluble fertilizer containing nano silicon dioxide comprises the following steps:

[0007] S1: Preparation before fertilization;

[0008] S2: prepare fertilizer solution;

[0009] S3: Apply fertilizer;

[0010] S4: post-implantation management;

[0011] The pre-fertilization preparation includes confirming crop needs, measuring soil conditions, and preparing fertilization tools. The preparation of fertilizer solution includes calculating the amount of fertilizer and dissolving the fertilizer. The application of fertilizer includes drip irrigation, sprinkler irrigation, and fertigation. The post-fertilization management includes irrigation management, monitoring crop reactions, additional fertilization, and recording fertilization conditions.

[0012] As a further technical solution of the present invention, the nitrogen source is ammonium nitrate (NH4NO3) with a concentration of 10%, the phosphorus source is water-soluble potassium dihydrogen phosphate (KH2PO4) with a concentration of 8%, the potassium source is water-soluble potassium sulfate (K2SO4) with a concentration of 12%, and the trace elements include water-soluble ferrous sulfate (FeSO4·7H2O), water-soluble manganese sulfate (MnSO4·H2O), water-soluble zinc sulfate (ZnSO4·7H2O), and water-soluble copper sulfate (CuSO4·5H2O), and their concentrations are 0.2%, 0.1%, 0.05%, and 0.05%, respectively.

[0013] As a further technical solution of the present invention, the nano-silicon dioxide is in the form of a water-soluble nano-silicon dioxide suspension with a concentration of 3% and a particle size of 25-50 nm. The stabilizer is polyvinyl alcohol (PVA) with a concentration of 0.5%. The pH regulator is phosphoric acid (H3PO4) or ammonia water (NH3·H2O), which is used to adjust the pH of the fertilizer solution to 5.5-6.5.

[0014] As a further technical solution of the present invention, the total ratio of the water-soluble fertilizer is: ammonium nitrate (NH4NO3): 10%, water-soluble potassium dihydrogen phosphate (KH2PO4): 8%, water-soluble potassium sulfate (K2SO4): 12%, water-soluble ferrous sulfate (FeSO4·7H2O): 0.2%, water-soluble manganese sulfate (MnSO4·H2O): 0.1%, water-soluble zinc sulfate (ZnSO4·7H2O): 0.05%, water-soluble copper sulfate (CuSO4·5H2O): 0.05%, and water-soluble nano-silicon dioxide suspension (SiO2): 3%.

[0015] As a further technical solution of the present invention, the confirming of crop needs includes determining the amount of fertilizer according to the growth stages of different crops, including the seedling stage, the vegetative growth stage, and the flowering and fruiting stage; the measuring of soil conditions includes using soil testing tools to measure the pH value and nutrient content of the soil in order to adjust the amount of fertilizer; and the preparing of fertilization tools includes preparing a drip irrigation system, a sprinkler irrigation system, and a fertilizer vehicle to ensure the normal operation of the equipment.

[0016] As a further technical solution of the present invention, the calculation of the amount of fertilizer to be applied includes determining the amount of fertilizer required per hectare according to crop demand and soil conditions, the dissolving of fertilizer includes gradually adding ammonium nitrate (10%), water-soluble potassium dihydrogen phosphate (8%), and water-soluble potassium sulfate (12%) to an appropriate amount of water, stirring and dissolving until completely dissolved, then adding water-soluble ferrous sulfate (0.2%), manganese sulfate (0.1%), zinc sulfate (0.05%), and copper sulfate (0.05%), continuing to stir until completely dissolved, and finally adding a water-soluble nano-silicon dioxide suspension (3%) to ensure uniform dispersion, and using phosphoric acid and ammonia water to adjust the pH value of the fertilizer solution to 5.5-6.5, using a filter to filter the fertilizer solution to remove possible solid impurities to ensure the purity of the fertilizer solution, and finally storing the prepared fertilizer solution in a sealed container to ensure sealing to avoid deterioration of the fertilizer solution.

[0017] As a further technical solution of the present invention, the application of fertilizers needs to select an appropriate fertilization method according to the type of crops in the farmland and the type of irrigation equipment. The drip irrigation includes injecting the fertilizer solution directly into the drip irrigation pipe and applying it together with water during each irrigation. The sprinkler irrigation includes spraying the fertilizer solution evenly onto the roots and leaves of the crops through the sprinkler irrigation system to avoid spraying directly onto the leaves. The irrigation fertigation includes applying the fertilizer solution through a traditional irrigation channel to ensure that the solution is evenly distributed in the soil.

[0018] As a further technical solution of the present invention, the irrigation management includes timely irrigation after applying fertilizer to help the fertilizer penetrate into the deep soil layer to ensure that the plant roots can fully absorb nutrients. The monitoring of crop responses includes observing the growth response of crops within 1-2 weeks after fertilization, including but not limited to the color of leaves, the development of the root system, and whether there is fertilizer damage. The supplementary fertilization includes timely supplementary fertilization in subsequent growth stages according to the needs and growth status of the crops to ensure that the crops obtain sufficient nutrients in each growth stage. The recording of fertilization conditions includes recording the date, amount and method of each fertilization to facilitate future reference and adjustment of the fertilization plan.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) The present invention innovatively adds nano-silicon dioxide components to traditional water-soluble fertilizers. This change not only significantly improves the overall efficiency of the fertilizer, but also gives the fertilizer a new function of killing insects and inhibiting bacteria. Nano-silicon dioxide can strongly interact with microorganisms and pests in crop leaves and soil due to its unique nano-scale size effect and surface properties. On the surface of the leaves, nano-silicon dioxide can form a protective layer to effectively block the invasion of pests. At the same time, its tiny particles can also block the pores of pests, causing them to suffocate and die, thereby achieving a physical killing effect on pests. In the soil, nano-silicon dioxide can change the soil microenvironment, inhibit the growth of harmful microorganisms, and create a healthier growth environment for crop roots. In addition, nano-silicon dioxide can also promote the absorption and utilization of nutrients by crops, improve the stress resistance and yield of crops, and achieve a double improvement in fertilizer efficiency. In addition, due to the addition of nano-silicon dioxide, the permeability and adhesion of the fertilizer are enhanced, so that the fertilizer can be more effectively absorbed and utilized by crops, reducing the loss and waste of nutrients and improving the utilization rate of the fertilizer.

[0021] (2) The present invention can ensure that the application of fertilizers is more scientific and reasonable by confirming crop needs, measuring soil conditions and preparing fertilization tools. When calculating the amount of fertilizer to be applied, the amount of fertilizer required per hectare is accurately calculated based on crop needs and soil conditions, thereby avoiding excessive or insufficient fertilizers and improving the utilization efficiency of fertilizers. In the process of dissolving fertilizers, a gradual addition and sufficient stirring method is adopted to ensure the uniform distribution and complete dissolution of various nutrient elements, thereby providing sufficient nutritional support for the healthy growth of crops. By flexibly selecting drip irrigation, sprinkler irrigation and fertigation, the precise application of fertilizers is achieved. At the same time, in the post-fertilization management stage, through irrigation management, monitoring crop reactions, supplementary fertilization and recording fertilization conditions and other measures, problems arising in the crop growth process can be discovered and solved in a timely manner, thereby ensuring that crops can obtain sufficient nutrient support at each growth stage. In addition, the fertilizer application method of the present invention is also easy to combine with a modern agricultural intelligent management system to realize remote monitoring and automatic adjustment of fertilizers, thereby further improving the accuracy and efficiency of fertilization. This perfect combination of precise fertilization and intelligent management not only improves the yield and quality of crops, but also reduces agricultural production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall application process of the present invention;

[0023] Figure 2 A schematic diagram of the process of preparing for fertilization according to the present invention;

[0024] Figure 3 A schematic diagram of a process for preparing a fertilizer solution according to the present invention;

[0025] Figure 4It is a schematic diagram of the process of applying fertilizers according to the present invention;

[0026] Figure 5 It is a schematic diagram of the process of post-implantation management of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 5 As shown, in an embodiment of the present invention, a water-soluble fertilizer containing nano-silicon dioxide includes the following components: a nitrogen source, a phosphorus source, a potassium source, trace elements, nano-silicon dioxide, a stabilizer and a pH regulator;

[0029] A method for applying a water-soluble fertilizer containing nano silicon dioxide comprises the following steps:

[0030] S1: Preparation before fertilization;

[0031] S2: prepare fertilizer solution;

[0032] S3: Apply fertilizer;

[0033] S4: post-implantation management;

[0034] Preparation before fertilization includes confirming crop needs, measuring soil conditions, and preparing fertilization tools. Preparation of fertilizer solution includes calculating the amount of fertilizer and dissolving fertilizer. Fertilizer application includes drip irrigation, sprinkler irrigation, and fertigation. Post-fertilization management includes irrigation management, monitoring crop responses, additional fertilization, and recording fertilization conditions.

[0035] Water-soluble fertilizers containing nano-silicon dioxide significantly improve fertilizer utilization and crop absorption efficiency by finely proportioning multiple nutrients. Its application method is systematic and scientific. From early preparation to later management, each step ensures accurate fertilizer application and healthy crop growth. This fertilizer not only enhances crop stress resistance and yield, but also optimizes the soil environment, achieving green and efficient agricultural production. In addition, meticulous post-fertilization management further ensures the durability and stability of the fertilization effect, bringing significant economic and ecological benefits to agricultural production.

[0036] Among them, the nitrogen source is ammonium nitrate (NH4NO3) with a concentration of 10%, the phosphorus source is water-soluble potassium dihydrogen phosphate (KH2PO4) with a concentration of 8%, the potassium source is water-soluble potassium sulfate (K2SO4) with a concentration of 12%, and the trace elements include water-soluble ferrous sulfate (FeSO4·7H2O), water-soluble manganese sulfate (MnSO4·H2O), water-soluble zinc sulfate (ZnSO4·7H2O), and water-soluble copper sulfate (CuSO4·5H2O), and their concentrations are 0.2%, 0.1%, 0.05%, and 0.05%, respectively.

[0037] The concentration of each ingredient in the fertilizer is scientifically set, which can be quickly absorbed and utilized by crops, promote root development, and enhance crop resistance. The addition of trace elements further meets the subtle needs of crops for trace elements, which helps to improve crop quality and yield. Overall, this fertilizer can significantly optimize the crop growth environment and achieve the goal of efficient and green agricultural production.

[0038] The nano-silica is in the form of a water-soluble nano-silica suspension with a concentration of 3% and a particle size of 25-50 nm. The stabilizer is polyvinyl alcohol (PVA) with a concentration of 0.5%. The pH regulator is phosphoric acid (H3PO4) or ammonia water (NH3·H2O), which is used to adjust the pH of the fertilizer solution to 5.5-6.5.

[0039] By adding a 3% water-soluble nano-silica suspension, the particle size of the nanoparticles is controlled at 25-50nm, which effectively improves the permeability of the fertilizer and the crop absorption efficiency. Polyvinyl alcohol (PVA) is used as a stabilizer with a concentration of 0.5%, ensuring the stable dispersion of nano-silica in the solution and avoiding agglomeration. Through precise adjustment of phosphoric acid or ammonia water, the pH value of the fertilizer solution is maintained in the appropriate range of 5.5-6.5, further optimizing the nutrient absorption environment of the crop roots.

[0040] Among them, the total ratio of water-soluble fertilizers is: ammonium nitrate (NH4NO3): 10%, water-soluble potassium dihydrogen phosphate (KH2PO4): 8%, water-soluble potassium sulfate (K2SO4): 12%, water-soluble ferrous sulfate (FeSO4·7H2O): 0.2%, water-soluble manganese sulfate (MnSO4·H2O): 0.1%, water-soluble zinc sulfate (ZnSO4·7H2O): 0.05%, water-soluble copper sulfate (CuSO4·5H2O): 0.05%, water-soluble nano-silicon dioxide suspension (SiO2): 3%.

[0041] By combining high-efficiency nitrogen, phosphorus and potassium main elements with precise trace elements, and adding 3% water-soluble nano-silicon dioxide suspension, it provides a comprehensive and balanced nutrition system for crops. This fertilizer can not only be quickly absorbed by the root system of crops, promoting the healthy growth of crops, but also significantly improve the stress resistance and yield of crops. The addition of nano-silicon dioxide further enhances the permeability of fertilizers and the nutrient utilization rate of crops, and optimizes the soil microenvironment.

[0042] Among them, confirming crop needs includes determining the amount of fertilizer according to the growth stages of different crops, including the seedling stage, vegetative growth stage, and flowering and fruiting stage. Measuring soil conditions includes using soil testing tools to measure the pH value and nutrient content of the soil in order to adjust the amount of fertilizer. Preparing fertilization tools includes preparing drip irrigation systems, sprinkler irrigation systems, and fertilizer vehicles to ensure the normal operation of the equipment.

[0043] By accurately adjusting the amount of fertilizer according to different growth stages, we ensure that crops can obtain appropriate nutritional support at each stage. At the same time, using soil testing tools to accurately measure soil pH and nutrient content provides a scientific basis for rational fertilization and effectively avoids nutrient waste and soil pollution. In addition, fully preparing fertilization tools such as drip irrigation systems, sprinkler irrigation systems and fertilizer trucks and ensuring their normal operation provides a strong guarantee for the precise application of fertilizers.

[0044] Among them, calculating the amount of fertilizer to be applied includes determining the amount of fertilizer required per hectare based on crop needs and soil conditions, dissolving the fertilizer includes gradually adding ammonium nitrate (10%), water-soluble potassium dihydrogen phosphate (8%), and water-soluble potassium sulfate (12%) to an appropriate amount of water, stirring and dissolving until completely dissolved, then adding water-soluble ferrous sulfate (0.2%), manganese sulfate (0.1%), zinc sulfate (0.05%), and copper sulfate (0.05%), continuing to stir until completely dissolved, and finally adding water-soluble nano-silicon dioxide suspension (3%) to ensure uniform dispersion, and using phosphoric acid and ammonia water to adjust the pH value of the fertilizer solution to 5.5-6.5, using a filter to filter the fertilizer solution to remove possible solid impurities to ensure the purity of the fertilizer solution, and finally storing the prepared fertilizer solution in a sealed container to ensure sealing to avoid deterioration of the fertilizer solution.

[0045] By gradually adding and fully stirring the fertilizer during the dissolution process, the uniform distribution and complete dissolution of various nutrient elements are ensured. Finally, the nano-silicon dioxide suspension is added, and the pH value is adjusted with phosphoric acid and ammonia water to further improve the stability and permeability of the fertilizer. Impurities are removed by filtration to ensure the purity of the fertilizer solution. Storage in a closed container effectively avoids the deterioration of the fertilizer solution.

[0046] Among them, the application of fertilizers needs to be based on the types of crops in the farmland and the type of irrigation equipment, and appropriate fertilization methods should be selected. Drip irrigation involves injecting the fertilizer solution directly into the drip irrigation pipe and applying it together with water during each irrigation. Sprinkler irrigation involves spraying the fertilizer solution evenly onto the roots and leaves of the crops through the sprinkler irrigation system to avoid spraying directly onto the leaves. Irrigation fertigation involves applying the fertilizer solution through traditional irrigation channels to ensure that the solution is evenly distributed in the soil.

[0047] By flexibly selecting fertilization methods, accurate application and efficient use of fertilizers are ensured. Drip irrigation allows fertilizer solution to enter the crop root system directly with water, improving nutrient absorption efficiency. Sprinkler irrigation cleverly sprays fertilizer evenly around the roots and leaves of crops, while avoiding direct contact with the leaves and protecting the health of the leaves. Irrigation fertilization achieves uniform distribution of fertilizer solution through traditional irrigation channels, promoting balanced absorption of soil nutrients. These fertilization methods together provide sufficient nutritional support for crops, promoting healthy growth and yield increase of crops.

[0048] Among them, irrigation management includes timely irrigation after applying fertilizer to help fertilizer penetrate deep into the soil to ensure that plant roots can fully absorb nutrients. Monitoring crop responses includes observing crop growth responses within 1-2 weeks after fertilization, including but not limited to leaf color, root development, and whether there is fertilizer damage. Supplementary fertilization includes timely supplementary fertilization in subsequent growth stages according to crop needs and growth status to ensure that crops obtain sufficient nutrients at each growth stage. Recording fertilization conditions includes recording the date, amount and method of each fertilization for future reference and adjustment of fertilization plans.

[0049] By monitoring crop responses and adjusting fertilization strategies in a timely manner, fertilizer damage is effectively prevented and the health of crops is guaranteed. Supplementary fertilization is carried out in a timely manner according to crop needs to ensure that crops can obtain the necessary nutrient support at each growth stage. At the same time, detailed records of fertilization conditions provide a scientific basis for the formulation of subsequent fertilization plans, facilitate continuous optimization of fertilization strategies, and improve fertilizer utilization.

[0050] By innovatively adding nano-silicon dioxide to traditional water-soluble fertilizers, this change not only significantly improves the overall efficiency of the fertilizer, but also gives the fertilizer a new function of insecticide and antibacterial. Nano-silicon dioxide can strongly interact with microorganisms and pests in crop leaves and soil due to its unique nano-scale size effect and surface properties. On the surface of leaves, nano-silicon dioxide can form a protective layer to effectively block the invasion of pests. At the same time, its tiny particles can also block the pores of pests, causing them to suffocate and die, thereby achieving a physical killing effect on pests. In the soil, nano-silicon dioxide can change the soil microenvironment, inhibit the growth of harmful microorganisms, and create a healthier growth environment for crop roots. In addition, nano-silicon dioxide can also promote the absorption and utilization of nutrients by crops, improve crop resistance and yield, and achieve a double improvement in fertilizer efficiency. In addition, due to the addition of nano-silicon dioxide, the permeability and adhesion of fertilizers are enhanced, so that fertilizers can be more effectively absorbed and utilized by crops, reducing nutrient loss and waste, and improving fertilizer utilization.

[0051] By confirming crop needs, measuring soil conditions and preparing fertilization tools, it is possible to ensure that fertilizer application is more scientific and reasonable. When calculating the amount of fertilizer, the amount of fertilizer required per hectare is accurately calculated according to crop needs and soil conditions, avoiding excessive or insufficient fertilizer and improving fertilizer utilization efficiency. In the process of dissolving fertilizer, the method of gradual addition and full stirring is adopted to ensure the uniform distribution and complete dissolution of various nutrient elements, providing sufficient nutritional support for the healthy growth of crops. By flexibly selecting drip irrigation, sprinkler irrigation and fertigation, the precise application of fertilizer is achieved. At the same time, in the post-fertilization management stage, through irrigation management, monitoring crop reactions, supplementary fertilization and recording fertilization conditions and other measures, problems occurring during crop growth can be discovered and solved in a timely manner, ensuring that crops can obtain sufficient nutrient support at all growth stages. In addition, the fertilizer application method of the present invention is also easy to combine with a modern agricultural intelligent management system to achieve remote monitoring and automatic adjustment of fertilizers, further improving the accuracy and efficiency of fertilization. This perfect combination of precise fertilization and intelligent management not only improves crop yield and quality, but also reduces agricultural production costs.

[0052] 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 water-soluble fertilizer containing nano-silicon dioxide, comprising the following ingredients: a nitrogen source, a phosphorus source, a potassium source, trace elements, nano-silicon dioxide, a stabilizer and a pH regulator; A method for applying a water-soluble fertilizer containing nano silicon dioxide comprises the following steps: S1: Preparation before fertilization; S2: prepare fertilizer solution; S3: Apply fertilizer; S4: post-implantation management; The pre-fertilization preparation includes confirming crop needs, measuring soil conditions, and preparing fertilization tools. The preparation of fertilizer solution includes calculating the amount of fertilizer and dissolving the fertilizer. The application of fertilizer includes drip irrigation, sprinkler irrigation, and fertigation. The post-fertilization management includes irrigation management, monitoring crop reactions, additional fertilization, and recording fertilization conditions.

2. A water-soluble fertilizer containing nano-silicon dioxide and an application method thereof according to claim 1, characterized in that: The nitrogen source is ammonium nitrate (NH4NO3) with a concentration of 10%, the phosphorus source is water-soluble potassium dihydrogen phosphate (KH2PO4) with a concentration of 8%, the potassium source is water-soluble potassium sulfate (K2SO4) with a concentration of 12%, and the trace elements include water-soluble ferrous sulfate (FeSO4·7H2O), water-soluble manganese sulfate (MnSO4·H2O), water-soluble zinc sulfate (ZnSO4·7H2O), and water-soluble copper sulfate (CuSO4·5H2O), and their concentrations are 0.2%, 0.1%, 0.05%, and 0.05%, respectively.

3. A water-soluble fertilizer containing nano silicon dioxide and an application method thereof according to claim 1, characterized in that: The nano-silicon dioxide is in the form of a water-soluble nano-silicon dioxide suspension with a concentration of 3% and a particle size of 25-50 nm. The stabilizer is polyvinyl alcohol (PVA) with a concentration of 0.5%. The pH regulator is phosphoric acid (H3PO4) or ammonia water (NH3·H2O), which is used to adjust the pH of the fertilizer solution to 5.5-6.

5.

4. A water-soluble fertilizer containing nano-silicon dioxide and an application method thereof according to claim 1, characterized in that: The total proportion of the water-soluble fertilizer is: ammonium nitrate (NH4NO3): 10%, water-soluble potassium dihydrogen phosphate (KH2PO4): 8%, water-soluble potassium sulfate (K2SO4): 12%, water-soluble ferrous sulfate (FeSO4·7H2O): 0.2%, water-soluble manganese sulfate (MnSO4·H2O): 0.1%, water-soluble zinc sulfate (ZnSO4·7H2O): 0.05%, water-soluble copper sulfate (CuSO4·5H2O): 0.05%, water-soluble nano-silicon dioxide suspension (SiO2): 3%.

5. A water-soluble fertilizer containing nano-silicon dioxide and an application method thereof according to claim 1, characterized in that: The confirming of crop needs includes determining the amount of fertilizer according to the growth stages of different crops, including the seedling stage, the vegetative growth stage, and the flowering and fruiting stage. The measuring of soil conditions includes using soil testing tools to measure the pH value and nutrient content of the soil in order to adjust the amount of fertilizer. The preparing of fertilization tools includes preparing drip irrigation systems, sprinkler irrigation systems, and fertilizer vehicles to ensure that the equipment is working properly.

6. The water-soluble fertilizer containing nano-silicon dioxide and the application method thereof according to claim 1, characterized in that: The calculation of the amount of fertilizer to be applied comprises determining the amount of fertilizer required per hectare according to crop needs and soil conditions, the dissolving of the fertilizer comprises gradually adding ammonium nitrate (10%), water-soluble potassium dihydrogen phosphate (8%), and water-soluble potassium sulfate (12%) to an appropriate amount of water, stirring and dissolving until completely dissolved, then adding water-soluble ferrous sulfate (0.2%), manganese sulfate (0.1%), zinc sulfate (0.05%), and copper sulfate (0.05%), continuing to stir until completely dissolved, and finally adding a water-soluble nano-silicon dioxide suspension (3%) to ensure uniform dispersion, and adjusting the pH value of the fertilizer solution to 5.5-6.5 using phosphoric acid and ammonia water, filtering the fertilizer solution using a filter to remove possible solid impurities and ensure the purity of the fertilizer solution, and finally storing the prepared fertilizer solution in a sealed container to ensure sealing to avoid deterioration of the fertilizer solution.

7. The water-soluble fertilizer containing nano-silicon dioxide and the application method thereof according to claim 1, characterized in that: The application of fertilizers requires selecting an appropriate fertilization method based on the types of crops in the farmland and the type of irrigation equipment. The drip irrigation includes injecting the fertilizer solution directly into the drip irrigation pipe and applying it together with water during each irrigation. The sprinkler irrigation includes spraying the fertilizer solution evenly onto the roots and leaves of the crops through the sprinkler irrigation system to avoid spraying directly onto the leaves. The fertigation includes applying the fertilizer solution through traditional irrigation channels to ensure that the solution is evenly distributed in the soil.

8. The water-soluble fertilizer containing nano-silicon dioxide and the application method thereof according to claim 1, characterized in that: The irrigation management includes timely irrigation after applying fertilizer to help the fertilizer penetrate deep into the soil to ensure that the plant roots can fully absorb nutrients. The monitoring of crop responses includes observing the growth response of crops within 1-2 weeks after fertilization, including but not limited to the color of leaves, the development of the root system, and whether there is fertilizer damage. The supplementary fertilization includes timely supplementary fertilization in subsequent growth stages according to the needs and growth status of the crops to ensure that the crops obtain sufficient nutrients at each growth stage. The recording of fertilization conditions includes recording the date, amount and method of each fertilization to facilitate future reference and adjustment of the fertilization plan.

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