A frost protection agent for fruit trees and a method for preparing the same

Abstract

The application protects an antifreezing agent for frost protection of fruit trees and a preparation method thereof. The antifreezing agent for frost protection of fruit trees comprises A component, B component and water mixed in a weight ratio of 1:(50-55):(250-260). The A component comprises mixed animal fat and paraffin in a weight ratio of 10:(3-4). The B component comprises a quick dissolving agent and an auxiliary material in a weight ratio of 1:(50-55). The mixed animal fat and paraffin form a frost protection film on the branches of young trees by mixing, the auxiliary material is wrapped on the branches of young trees, provides nutrition for the branches of young trees, and kills bacteria on the branches of young trees to prevent insect breeding. The quick dissolving agent is added inside, so that the mixed animal fat and paraffin are quickly melted when the temperature slowly rises, thereby achieving the purpose of quick shedding of the mixed animal fat and paraffin, solving the problem that the mixed animal fat cannot be separated when the temperature rises, and reducing the survival rate of the branches due to the inability of the branches to perform photosynthesis.

Description

Technical Field

[0001] This invention belongs to the field of fruit tree planting technology, and specifically relates to an antifreeze agent for protecting fruit trees from frost and its preparation method. Background Technology

[0002] Currently, after watering two- to three-year-old saplings in winter, they need to be buried in soil before winter to prevent them from drying out and dying in the spring. However, burying the soil can sometimes break the trunk of the saplings, or damage the bark or trunk when clearing the soil in spring, thus reducing the survival rate of the saplings. At the same time, there are no specific and effective measures to deal with pests and frost damage, so the protection effect on the saplings is not good, which is why it is not conducive to promotion.

[0003] To reduce the impact of frost on young trees during cold winters, existing technologies, such as Chinese invention patent CN1134221A, disclose a fruit tree antifreeze agent. Specifically, it is composed of animal oil and paraffin wax, with the weight percentages being 45-90% animal oil and 10-55% paraffin wax. Applying this mixture to the trunks and branches of fruit trees in cold northern regions can protect them from frost damage and ensure safe overwintering, while also preventing premature shoot growth. This antifreeze agent is non-toxic, has no side effects, and does not affect the normal development and growth of fruit trees, such as budding, leaf development, flowering, and fruiting. However, when applying the antifreeze agent manually, it is difficult to control the application thickness. Excessive thickness can hinder the growth of young trees, leading to increased mortality; insufficient thickness can result in poor antifreeze effects and even the death of young trees. Summary of the Invention

[0004] Therefore, it is necessary to provide an antifreeze agent for fruit trees and its preparation method to address the problem that manual application of antifreeze agents is difficult to control in terms of thickness, and that excessive or insufficient thickness can easily lead to stunted growth and increased mortality in young trees.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] An antifreeze agent for fruit trees against frost, comprising: component A, component B, and water mixed in a weight ratio of 1:(50-55):(250-260), wherein:

[0007] Component A consists of a mixture of animal fats and paraffin, in a weight ratio of 10:(3-4);

[0008] Component B includes instant solvents and excipients, and the weight ratio is 1:(50-55).

[0009] Preferably, the mixed animal fats include a mixture of mixed oil and mutton fat, and the weight ratio of the mixed oil to mutton fat is 10:(2-4).

[0010] Preferably, the mixed oil is prepared by mixing one or more of lard and tallow.

[0011] Preferably, the instant solvent is table salt.

[0012] Preferably, the auxiliary material is wood ash.

[0013] A method for preparing an antifreeze agent for frost protection of fruit trees, comprising the following steps:

[0014] Step S1: Weigh a certain amount of mixed animal fat and paraffin and heat it. Add the paraffin to the mixed animal fat according to the ratio and stir to mix to obtain component A.

[0015] Step S2: Weigh a certain amount of instant solvent and excipients, and mix them according to the ratio to obtain component B;

[0016] Step S3: Weigh a certain amount of water and heat it. Add component A to the hot water according to the weight ratio and stir continuously to obtain a mixed solution.

[0017] Step S4: Add component B to the mixed solution according to the ratio and stir. After uniform mixing, an antifreeze agent for fruit trees is obtained.

[0018] Preferably, the water temperature in step S3 is 95°C to 100°C.

[0019] Preferably, in step S4, when component B is added to the mixed solution in proportion, the mixed solution is continuously stirred and heated to a temperature of 40°C to 80°C.

[0020] The technical solution adopted in this application can achieve the following beneficial effects:

[0021] 1. By mixing animal fats, paraffin wax, quick-dissolving agents, auxiliary materials, and water in a specific ratio, the animal fats and paraffin wax form a frost-proof film on young tree branches. The auxiliary materials wrap around the young tree branches, providing nutrients and killing bacteria to prevent pests. The quick-dissolving agent added internally allows the mixed animal fats and paraffin wax to melt rapidly as the temperature rises slowly, thus achieving the goal of rapid removal of the mixed animal fats and paraffin wax. This solves the problem that the mixed animal fat cannot be removed when the temperature rises (in spring), which prevents the branches from photosynthesizing and reduces the survival rate.

[0022] 2. By using excipients, a mixture of various animal fats with different melting temperatures, and a quick-dissolving agent, the problem of difficulty in controlling the coating thickness when manually applying antifreeze is solved. Excessive coating thickness can hinder sapling growth and increase mortality, while insufficient coating thickness can lead to poor antifreeze effect and sapling death.

[0023] 3. By adding auxiliary materials inside, the clumps become looser after cooling, making it easier for them to fall off quickly when the temperature rises and they are combined with a fast solvent. This solves the problem of tightly packed mixed animal fats being difficult to remove in time.

[0024] 4. By using a mixture of animal fats, the coating can provide both protection against frost and reduce the coating strength of the mixed animal fats. The animal fats with lower melting temperatures melt first, then remove the unmelted animal fats along with them, thus solving the problems of low melting efficiency and difficulty in removing the coating when using only one type of animal fat. Detailed Implementation

[0025] To facilitate understanding of this application, a more comprehensive description will be provided below. Preferred embodiments are given in this application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0026] It should be noted that when a device is considered to be "connected" to another device, it can be directly connected to the other device or there may be an intervening device present. The terms "inside," "top," "upper," "lower," "above," "below," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] This application provides an antifreeze agent for frost protection of fruit trees and its preparation method. The antifreeze agent for frost protection of fruit trees includes: component A, component B and water mixed in a weight ratio of 1:(50-55):(250-260), wherein: component A includes mixed animal fats and paraffin, and the weight ratio is 10:(3-4); component B includes a quick-dissolving agent and excipients, and the weight ratio is 1:(50-55).

[0029] The mixed animal fats and paraffin wax are melted separately by heating. The mixed animal fats are generally common types of fats such as lard, tallow, and mutton fat (the melting temperature range of lard is 28℃ to 48℃, tallow is 40℃ to 46℃, and mutton fat is 40℃ to 50℃). The paraffin wax has a melting temperature of 50℃ to 70℃. During preparation, they are heated separately. First, the paraffin wax is melted at 65℃ (at 50℃, paraffin wax is in a melting state, but slowly and contains lumps; at 60℃, paraffin wax melts completely but at a slower rate and without lumps; at 65℃, paraffin wax melts quickly and without lumps; at 70℃, paraffin wax melts quickly, but there is a problem of significant volume reduction after melting due to water evaporation). Slow stirring is performed during melting to allow the paraffin wax to... The mixture of animal fats and lard is melted evenly and quickly in a pot at 45°C. The animal fats and lard consist of two or more of the following: lard, mutton fat, and beef tallow. (At 30°C, lard melts slowly, while mutton fat and beef tallow show signs of melting but do not completely melt; at 40°C, lard melts, while mutton fat and beef tallow melt slowly and clump; at 45°C, lard, mutton fat, and beef tallow melt quickly without clumping; at 50°C, the volume of lard decreases significantly after melting due to the high temperature, while beef tallow and mutton tallow melt quickly; the optimal temperature is 45°C). The mixture of animal fats and lard is then poured into paraffin wax. The temperature in the paraffin wax pot is slowly reduced to 45°C to prevent the paraffin wax from solidifying, and the mixture is continuously stirred to ensure complete and uniform mixing of the paraffin wax and animal fats, resulting in component A.

[0030] While stirring component A, weigh out the quick-acting solvent and excipients according to the proportions. The quick-acting solvent may be one or more of the following, but not limited to: salt, urea, sodium salicylate, etc., and the excipients may be, but not limited to: wood ash, limestone, etc. The quick-acting solvent and excipients are stirred evenly using a mixer to obtain component B.

[0031] Weigh out a certain amount of water according to the ratio and heat it to boiling. Add the water to component A and continue stirring, while keeping the temperature inside the paraffin pot constant. Then add component B to component A according to the ratio and stir while adding until the mixture is evenly mixed to obtain an antifreeze agent for fruit trees to prevent frost damage.

[0032] When winter approaches or the temperature drops below the tolerance level of two- to three-year-old saplings, heat the antifreeze agent used for frost protection of fruit trees while stirring it. Then, use a brush or towel to apply the antifreeze agent to the branches and trunk of the saplings (the saplings mentioned here and below are all two- to three-year-old saplings). During the application process, heat and stir the antifreeze agent. A self-heating box can be used for heating. The initial heating temperature is 65°C, and after melting, the temperature is reduced to 45°C.

[0033] The technical solution of this application, which employs an antifreeze agent for frost protection of fruit trees, can achieve the following beneficial effects:

[0034] 1. By mixing animal fats, paraffin wax, quick-dissolving agents, auxiliary materials, and water in a specific ratio, the animal fats and paraffin wax form a frost-proof film on young tree branches. The auxiliary materials wrap around the young tree branches, providing nutrients and killing bacteria to prevent pests. The quick-dissolving agent added internally allows the mixed animal fats and paraffin wax to melt rapidly as the temperature rises slowly, thus achieving the goal of rapid removal of the mixed animal fats and paraffin wax. This solves the problem that the mixed animal fat cannot be removed when the temperature rises (in spring), which prevents the branches from photosynthesizing and reduces the survival rate.

[0035] 2. By using excipients, a mixture of various animal fats with different melting temperatures, and a quick-dissolving agent, the problem of difficulty in controlling the coating thickness when manually applying antifreeze is solved. Excessive coating thickness can hinder sapling growth and increase mortality, while insufficient coating thickness can lead to poor antifreeze effect and sapling death.

[0036] 3. By adding auxiliary materials inside, the clumps become looser after cooling, making it easier for them to fall off quickly when the temperature rises and they are combined with a fast solvent. This solves the problem of tightly packed mixed animal fats being difficult to remove in time.

[0037] 4. By using a mixture of animal fats, the coating can provide both protection against frost and reduce the coating strength of the mixed animal fats. The animal fats with lower melting temperatures melt first, then remove the unmelted animal fats along with them, thus solving the problems of low melting efficiency and difficulty in removing the coating when using only one type of animal fat.

[0038] Based on the above scheme, the mixed animal fats include a mixture of mixed oil and mutton fat, and the weight ratio of mixed oil to mutton fat is 10:(2-4).

[0039] Specifically, among the most common tallows, mutton tallows, and lards, mutton tallow has a melting temperature of 40℃ to 50℃. Compared to the melting temperature range of tallow and lard, mutton tallow has a higher maximum melting temperature. Therefore, during the wrapping process, it melts more slowly, leaving some mutton tallow unmelted after the other animal fats have melted. This protects the seedlings until the mutton tallow has completely melted or the seedlings sprout new buds that break through the protective film formed by the mutton tallow. The mixed oil uses the remaining one or more animal fats, with the optimal weight ratio of mutton tallow to mixed oil being 2:10. When the weight ratio of mutton tallow to mixed oil is 1:10, applying it to the seedlings at the beginning of winter and observing the surface of the seedlings after the spring temperature rises, wiping them with a hot towel, and then testing the type and content of animal fats revealed a low mutton tallow content and slight frost damage in that section of the seedling. When the weight ratio of mutton tallow to mixed oil is 2:10, applying it at the beginning of winter... On young tree branches, after the spring temperature rises, observation of the surface of the branches, wiping with a hot towel, and testing for the type and content of animal fat revealed that the mutton fat content was moderate, and the branch section was intact with new buds and good growth. When the weight ratio of mutton fat to mixed oil was 3:10, it was applied to the young tree branches at the beginning of winter. After the spring temperature rises, observation of the surface of the branches, wiping with a hot towel, and testing for the type and content of animal fat revealed that the mutton fat content was high, and the branch section had new buds, but they were short and the growth was average. When the weight ratio of mutton fat to mixed oil was 4:10, it was applied to the young tree branches at the beginning of winter. After the spring temperature rises, observation of the surface of the branches, wiping with a hot towel, and testing for the type and content of animal fat revealed that the mutton fat content was high, and the branch section showed signs of budding, but there was obvious oxygen deficiency at the budding sites, and the growth was poor.

[0040] In the above scheme, in order to achieve rapid melting, the mixed oil includes one or more of lard and tallow.

[0041] Furthermore, the optimal choice is a mixture of lard and tallow in a weight ratio of 10:1. When tallow is mixed with lard, the higher melting temperature of tallow means that it will melt first when temperatures rise in spring, while the tallow will not yet begin to melt. As the lard melts, the tallow remains in chunks, and the slow melting of the lard causes large chunks of tallow to fall off, which in turn causes more lard to fall off. This helps to remove the antifreeze used to protect fruit trees from frost from the young branches, solving the problem of delayed removal of the antifreeze and preventing the young branches from photosynthesizing.

[0042] In the above scheme, the quick-dissolving agent is table salt. Specifically, table salt is one of the common and effective quick-dissolving agents, and the freezing temperature of salt water is low, at -21°C. When the temperature is -21°C, the salt water freezes and releases heat, thus ensuring that the young branches are not affected by frost. When the temperature rises, the animal fat mixture inside gradually melts, causing the frozen salt water to fall off in chunks, thereby causing more of the antifreeze used to protect fruit trees from frost to fall off, which can better protect the young branches and quickly cause them to fall off.

[0043] Based on the above scheme, the auxiliary material is wood ash.

[0044] Specifically, wood ash has a strong water retention capacity, which can greatly improve the drought resistance of fruit trees. In addition to containing a large amount of nutrients such as potassium and calcium, wood ash also contains a variety of trace elements such as iron and magnesium. It is fast-acting and a high-quality foliar fertilizer. Spraying the leaves with a 50%-80% wood ash extract before and after flowering can promote green leaves, enhance photosynthesis, reduce flower and fruit drop, promote bright coloring of flowers and fruits, prolong the ornamental period, and improve fruit quality. Furthermore, wood ash has a strong ability to kill pathogens and viruses, and can play a role in disinfection and sterilization. It can kill bacteria and insect eggs in the soil, prevent root rot, promote better root development, and make fruit trees more disease-resistant.

[0045] By using wood ash as an auxiliary material, disinfection is carried out during the application process to prevent bacteria from affecting the growth of new buds on young tree branches in winter or spring. After falling off, the wood ash falls directly around the young tree, and after the temperature rises, it dries and provides nutrients to the young tree, promoting its growth.

[0046] A method for preparing an antifreeze agent for frost protection of fruit trees, comprising the following steps:

[0047] Step S1: Weigh a certain amount of mixed animal fat and paraffin and heat it. Add the paraffin to the mixed animal fat according to the ratio and stir to mix to obtain component A.

[0048] Step S2: Weigh a certain amount of instant solvent and excipients, and mix them according to the ratio to obtain component B;

[0049] Step S3: Weigh a certain amount of water and heat it. Add component A to the hot water according to the weight ratio and stir continuously to obtain a mixed solution.

[0050] Step S4: Add component B to the mixed solution according to the ratio and stir. After uniform mixing, an antifreeze agent for fruit trees is obtained.

[0051] Furthermore, in step S3, the water temperature is 95°C to 100°C.

[0052] Specifically, in step S4, when component B is added to the mixed solution in proportion, the mixed solution is continuously stirred and heated to a temperature of 40°C to 80°C.

[0053] Weigh 0.66 kg of mixed animal fats (referring to a mixture of lard, tallow, and mutton fat in a weight ratio of 10:1:2.2) and heat to 45°C. Weigh 0.2 kg of paraffin wax and heat to 65°C. Stir the mixture while heating the animal fats and paraffin wax. After the paraffin wax has completely melted, lower the temperature to 45°C and pour the completely melted animal fats into the paraffin wax. Continue heating and stirring to obtain 0.86 kg of component A.

[0054] Weigh 32 kg of excipients and 0.6 kg of instant solvent and mix them at high speed to obtain 32.6 kg of component B; (the instant solvent and excipients are mixed in a weight ratio of 1:53, wherein the instant solvent is salt and the excipient is wood ash).

[0055] Weigh 170kg of water and heat it to 98℃. Weigh 165kg of the water and add it to 0.86kg of component A, which is being heated and stirred. Continue stirring until the mixture is homogeneous. Then continue heating to maintain the temperature between 40℃ and 80℃ (the temperature will rise as the water temperature increases, but the heating temperature should remain constant). Then add 32.6kg of component B and continue stirring and heating until the mixture is homogeneous before use or for canning and storage.

[0056] The preparation of component A also includes the following steps:

[0057] Weigh out the lard, beef tallow and mutton tallow from the top beam according to the weight ratio of lard, beef tallow and mutton tallow of 10:1:2.2.

[0058] A measured amount of butter is heated to 45°C while being stirred until it is completely melted, resulting in melted butter.

[0059] A measured amount of lard is added to the melted butter and heated and stirred until there are no lumps of animal fat and the mixture is evenly mixed, thus obtaining the mixed oil.

[0060] A measured amount of mutton fat is added to the mixed oil and heated and stirred continuously until the mixed oil and mutton fat are completely melted to obtain component A.

[0061] The specific order can be adjusted according to preparation time and convenience; they can be added simultaneously or sequentially.

[0062] When using antifreeze for fruit trees to prevent frost damage, heat the container containing the antifreeze from the bottom. Once the antifreeze has partially melted, begin stirring. While stirring, slowly add a small amount of water to improve melting efficiency and reduce deviations in the ratio, ensuring the antifreeze's effectiveness against frost on young branches. After complete melting, apply the antifreeze with a brush. There is no need to worry about the thickness of the coating. This solves the problem of difficulty in controlling the coating thickness when applying antifreeze manually. Excessive coating thickness can prevent young trees from growing and increase mortality, while insufficient coating thickness can lead to poor frost protection and even the death of young trees.

[0063] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to embodiments.

[0064] Before the start of winter, 100 saplings from the same batch were selected and randomly grouped into 5 groups (Group 1, Group 2, ..., Group 5), with 20 saplings in each group. Each tree was marked, and two branches from each sapling were selected for observation and recording (the two branches were: Branch 1, showing signs of budding; Branch 2, showing no signs of budding; and each branch with one or more new buds was considered as one). The growth status of the corresponding sapling branches was recorded, such as signs of budding, bark frost damage, and the number of surviving buds, for later comparison. On the day of the start of winter, the following experiment was conducted:

[0065] Comparative Example 1:

[0066] Weigh out 10 kg of lard and 3 kg of paraffin wax. Heat the 3 kg of paraffin wax to 65°C and add the 10 kg of lard while stirring and heating until completely melted. Then, use a towel to apply the melted paraffin wax to the saplings.

[0067] After the application is completed, observe and record the growth of the young branches every month.

[0068] Example 1:

[0069] Weigh 0.2 kg of paraffin wax and put it into a pot. Heat the wax to 65°C while stirring.

[0070] Weigh out 0.5 kg of lard, 0.05 kg of beef tallow, and 0.11 kg of mutton tallow. Heat the pot to 45°C and add the lard, beef tallow, and mutton tallow in that order, stirring constantly. Add the next animal fat after the first one has completely melted. Continue until all three fats have melted and are evenly mixed. Pour the mixture into the paraffin wax and continue stirring and heating. Stir until evenly mixed. Then, use a towel to apply the mixture to the saplings.

[0071] After the application is completed, observe and record the growth of the young branches every month.

[0072] Example 2:

[0073] Weigh out 165 kg of water and add it to a temperature of 98°C;

[0074] Weigh 0.2 kg of paraffin wax and put it into a pot. Heat the wax to 65°C while stirring.

[0075] Weigh out 0.5 kg of lard, 0.05 kg of beef tallow, and 0.11 kg of mutton tallow. Heat the pot to 45°C and add the lard, beef tallow, and mutton tallow in that order, stirring constantly. Add the next animal fat after the first one has completely melted. Continue until all three fats have melted and are evenly mixed. Pour the mixture into hot water along with the paraffin wax and continue stirring and heating. Once evenly mixed, use a towel to apply the mixture to the saplings.

[0076] After the application is completed, observe and record the growth of the young branches every month.

[0077]

[0078]

[0079]

[0080] By comparing Comparative Example 1, Example 1, and Example 2, Comparative Example 1 involved applying lard and paraffin wax to the saplings. The manual application resulted in inconsistent application thickness. During observation, two branches were found to have a thinner application, leading to frost damage observed at the beginning of spring, and the existing new buds died after the temperature recovered. Similarly, two branches were found to have an excessively thick application, causing the lard and paraffin wax to not fall off promptly after the temperature rose, resulting in the death of existing buds and reducing the survival rate of new buds to 80%. Furthermore, the marked branch... Five trees suffered frostbite due to thin application of the paraffin wax, resulting in a frostbite rate of 17.5%. In Example 1, the paraffin wax content in the seed mixture was reduced by mixing lard with beef tallow and mutton tallow. The same method was used for application. During observation, one of the marked branches had a thin application and the other had a thick application, resulting in bud death. However, compared to Comparative Example 1, the bud survival rate was increased by 10%. In addition, one of the marked branches had a new bud and the other had frostbite. In comparison, the new bud germination rate was increased by 5% and the surface frostbite rate was reduced by 15%.

[0081] Compared with Example 1, Example 2, by adding a large amount of water and reducing the relative ratio of animal fat and paraffin, and using the same application method, resulted in 4 new buds appearing on the marked branch 2, thereby increasing the bud germination rate by 5%. Furthermore, the marked branch 1 showed no frost damage, and all the new buds on branch 1 survived. The marked branch 2 also showed no frost damage. Therefore, Example 2 improved the bud survival rate and new bud germination rate while reducing the epidermal frost damage rate, making it the preferred method to try.

[0082] Example 3:

[0083] Weigh 0.2 kg of paraffin wax and put it into a pot. Heat the wax to 65°C while stirring.

[0084] Weigh out 0.5 kg of lard, 0.05 kg of beef tallow, and 0.11 kg of mutton tallow. Heat the pot to 45°C and add the lard, beef tallow, and mutton tallow in that order, stirring constantly. Add the next animal fat after the first one has completely melted. Continue until all three fats have melted and are evenly mixed. Pour the mixture into the paraffin wax and continue stirring and heating until evenly mixed to obtain component A.

[0085] Weigh out 32kg of wood ash and 165kg of water, heat the water to 98℃, and add the wood ash and component A to the hot water and stir. After stirring evenly, use a towel to apply the mixture to the young tree branches.

[0086] After the application is completed, observe and record the growth of the young branches every month.

[0087] Example 4:

[0088] Weigh 0.2 kg of paraffin wax and put it into a pot. Heat the wax to 65°C while stirring.

[0089] Weigh out 0.5 kg of lard, 0.05 kg of beef tallow, and 0.11 kg of mutton tallow. Heat the pot to 45°C and add the lard, beef tallow, and mutton tallow in that order, stirring constantly. Add the next animal fat after the first one has completely melted. Continue until all three fats have melted and are evenly mixed. Pour the mixture into the paraffin wax and continue stirring and heating until evenly mixed to obtain component A.

[0090] Weigh out 32 kg of wood ash and 0.6 kg of salt, and stir them evenly at high speed to obtain component B;

[0091] Weigh 165 kg of water, heat the water to 98°C, and add both component A and component B to the hot water and stir. After stirring evenly, use a towel to apply the mixture to the young tree branches.

[0092] After the application is completed, observe and record the growth of the young branches every month.

[0093]

[0094]

[0095] By comparing Example 2 and Example 3, the germination survival rate was 100% in both cases. However, by adding wood ash as an auxiliary material, it was observed that the buds fell off faster after the temperature rose. Furthermore, a thin film was found on the surface of both the marked branch 1 and the marked branch 2. After the wood ash fell off, it provided nutrients to the young trees, thereby increasing the germination rate of new buds to 45%.

[0096] By comparing Examples 3 and 4, when salt was added internally, the marked branches 1 and 2 showed later freezing times and greater cold resistance. Compared to Example 3, the wood ash fell off earlier and could more quickly nourish the saplings, thereby increasing the germination rate of new shoots. Compared to Comparative Example 1, Example 1, Example 2, Example 3, and Example 4, Example 4 showed the highest germination rate of new shoots and the best frost resistance.

[0097] The above-described embodiments merely illustrate the device deployment method of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several adjustments and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An antifreeze agent for protecting fruit trees from frost, characterized in that, include: Component A, component B, and water are mixed in a weight ratio of 1:(50-55):(250-260), wherein: Component A consists of a mixture of animal fats and paraffin, in a weight ratio of 10:(3-4). Component B includes instant solvent and excipients, and the weight ratio is 1:(50-55). The mixed animal fats include a mixture of mixed oil and mutton fat, and the weight ratio of the mixed oil to mutton fat is 10:(2-4). The mixed oil is prepared by mixing lard and tallow; the instant solvent includes salt; and the auxiliary material includes wood ash.

2. A method for preparing an antifreeze agent for frost protection of fruit trees, characterized in that, The preparation of the antifreeze agent for fruit trees as described in claim 1 comprises the following steps: Step S1: Weigh a certain amount of mixed animal fat and paraffin and heat it. Add the paraffin to the mixed animal fat according to the ratio and stir to mix to obtain component A. Step S2: Weigh a certain amount of instant solvent and excipients, and mix them according to the ratio to obtain component B; Step S3: Weigh a certain amount of water and heat it. Add component A to the hot water according to the weight ratio and stir continuously to obtain a mixed solution. Step S4: Add component B to the mixed solution according to the ratio and stir. After uniform mixing, an antifreeze agent for fruit trees is obtained.

3. The method for preparing the antifreeze agent for fruit trees according to claim 2, characterized in that, In step S3, the water temperature is 95°C to 100°C.

4. The method for preparing the antifreeze agent for fruit trees according to claim 2, characterized in that, In step S4, when component B is added to the mixed solution in proportion, the mixed solution is continuously stirred and heated to a temperature of 40°C to 80°C.

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