Special rape fertilizer for preventing and treating sclerotinia rot of rape and application of special rape fertilizer

Abstract

The invention relates to the technical field of special rape fertilizers, and discloses a special rape fertilizer for preventing and treating sclerotinia rot of colza and application of the special rape fertilizer. The special rape fertilizer for preventing and treating sclerotinia rot of rape comprises the following raw materials in parts by weight: 30-40 parts of urea, 15-25 parts of diammonium phosphate, 10-20 parts of potassium chloride, 20-30 parts of chicken manure, 1-2 parts of borax, 0.5-1 part of zinc sulfate, 5-10 parts of a trichoderma biological agent, 2-4 parts of a garlic extract and 1-3 parts of chitosan. The preparation method of the special rape fertilizer for preventing and treating sclerotinia rot of colza comprises the following steps: pretreatment of raw materials: crushing urea, diammonium phosphate, potassium chloride and chicken manure, and respectively grinding borax and zinc sulfate into fine powder; in the invention, basic nutrients are provided by the urea, the diammonium phosphate and the potassium chloride, so that the problem that the drug effect of the drug for preventing and treating the sclerotinia rot of the colza is reduced or even completely lost due to the incompatibility of chemical properties of the raw materials of the existing rape fertilizer and the drug for preventing and treating the sclerotinia rot of the colza is solved.

Description

Technical Field

[0001] The invention relates to the technical field of special fertilizers for rapeseed, in particular to a special fertilizer for rapeseed for preventing and controlling sclerotinia sclerotiorum and application thereof. Background Art

[0002] Rapeseed sclerotinia is a very common and serious fungal disease caused by Sclerotinia sclerotiorum in rapeseed cultivation. It mainly harms the stems, leaves, flowers and siliques of rapeseed. In the early stage of the disease, light brown water-soaked spots appear on the stems, which gradually expand to grayish white. When the humidity is high, the diseased parts become soft and rotten, and white hyphae grow on the surface. In the later stage, black rat-feces-like sclerotia form in the stems, causing the rapeseed plants to age prematurely and die, seriously affecting the yield and quality of rapeseed. It can occur at all stages of rapeseed growth, especially during the flowering and silique stages. The warm and humid environment is conducive to its spread, which often brings huge losses to rapeseed production. It is one of the key diseases to be prevented and controlled in rapeseed production.

[0003] The raw materials of existing rapeseed fertilizers and rapeseed sclerotinia control agents are chemically incompatible. When applied at the same time, chemical reactions or adsorption will occur in the soil, affecting the activity, stability and release of effective ingredients of the agents, thereby reducing or even completely losing the efficacy of the rapeseed sclerotinia control agents. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a special fertilizer for rapeseed for preventing and controlling rapeseed sclerotinia rot and its application, which solves the problem that the raw materials of the existing rapeseed fertilizer and the agent for preventing and controlling rapeseed sclerotinia rot are chemically incompatible. When they are applied at the same time, chemical reactions or adsorption will occur in the soil, affecting the activity, stability and release of effective ingredients of the agent, thereby causing the efficacy of the agent for preventing and controlling rapeseed sclerotinia rot to be reduced or even completely lost.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a rapeseed-specific fertilizer and application thereof for preventing and controlling rapeseed sclerotinia rot, the rapeseed-specific fertilizer for preventing and controlling rapeseed sclerotinia rot comprises the following raw materials in parts by weight: 30-40 parts of urea, 15-25 parts of diammonium phosphate, 10-20 parts of potassium chloride, 20-30 parts of chicken manure, 1-2 parts of borax, 0.5-1 parts of zinc sulfate, 5-10 parts of Trichoderma biological agent, 2-4 parts of garlic extract, and 1-3 parts of chitosan.

[0006] The preparation method of rapeseed special fertilizer for preventing and controlling rapeseed sclerotinia disease comprises the following steps:

[0007] S1. Raw material pretreatment: pulverizing urea, diammonium phosphate, potassium chloride and chicken manure, grinding borax and zinc sulfate into fine powder respectively, and using a powdered alkali-resistant strain of Trichoderma as the biological agent;

[0008] S2, mixing and granulating: weighing each component of urea, diammonium phosphate, potassium chloride, chicken manure, borax, zinc sulfate, garlic extract and chitosan according to the formula, and then putting them into a stirring granulator to make fertilizer granules;

[0009] S3, adding bacterial agent: after granulation is completed, the Trichoderma biological bacterial agent particles are sprinkled on the surface of the fertilizer particles, and the Trichoderma biological bacterial agent is wrapped on the outer layer of the fertilizer particles with a starch film;

[0010] S4, post-processing: The coated fertilizer particles are dried, and the dried fertilizer particles are passed through a sifter and then packaged and stored.

[0011] Preferably, in S1, chicken manure is filled in a composting tank with a height not exceeding 3 / 4 of the tank depth, and then the chicken manure is ventilated through a ventilation pipe, the air volume is controlled at 0.05-0.1 cubic meters per minute, the ventilation time is 1-2 hours, the interval time is 2-3 hours, and the chicken manure at the bottom and edge of the composting tank is turned to the upper part 2-3 times a week for 1-2 months to obtain decomposed chicken manure, and the decomposed chicken manure is placed in an air flow dryer, and the temperature of the chicken manure is maintained at 60°C-90°C by the air flow dryer. The wind speed of the air flow dryer is controlled between 10-30m / s for 5-30 minutes, and the moisture content of the chicken manure is controlled at 10%-20% to form dry and decomposed chicken manure.

[0012] Preferably, the urea, diammonium phosphate, potassium chloride and dry and decomposed chicken manure in S1 are crushed separately by a gas flow mill to ensure that the feeding rate is 100-200 kg / hour, the air pressure is maintained between 0.6-0.8 MPa, the air flow rate is in the range of 10-30 cubic meters / minute, the gas temperature is controlled between 10-30°C, and the crushing time is controlled between 30 seconds and 2 minutes, ensuring that the particle size of the urea after crushing is between 0.5-2 mm, the particle size of the diammonium phosphate is 0.5-1.5 mm, the particle size of the potassium chloride is 0.3-1 mm, and the particle size of the chicken manure is 1-3 mm.

[0013] Preferably, in S2, the stirring time is controlled at 20-30 minutes, the stirring speed is controlled at 15-60 rpm, and after the stirring is completed, the fertilizer flows into the granulation chamber through the channel for granulation, and the particle size of the fertilizer particles is controlled at 2-4 mm.

[0014] Preferably, in S3, the starch and water in the starch film are mixed in a ratio of 1:5-1:10, stirred in a blender at 60°C-80°C and 100-200 rpm for 20-30 minutes to form a starch paste, and the starch paste is sprayed on the surface of the fertilizer particles at 40°C-60°C and a spray pressure of 0.2-0.5 MPa using a fluidized bed coating machine to form a coating, and the coating thickness is controlled to be 0.1-0.3 mm.

[0015] Preferably, in S4, the fertilizer particles are dried by a dryer, the drying temperature is controlled at 45° C.-55° C., and the drying time is continued for 25-30 minutes to ensure that the water content is 5%-8%.

[0016] The invention is based on the application of rapeseed-specific fertilizer in preventing and controlling rapeseed sclerotinia rot, and is used in preventing and controlling rapeseed sclerotinia rot, promoting rapeseed growth and increasing rapeseed yield.

[0017] The present invention provides a special fertilizer for rapeseed for preventing and controlling sclerotinia sclerotiorum and its application.

[0018] Beneficial effects:

[0019] 1. In the present invention, urea, diammonium phosphate and potassium chloride are used to provide basic nutrients, chicken manure is used as an organic fertilizer to supplement organic matter, trace elements such as borax and zinc sulfate are used to meet the specific needs of rapeseed growth, and Trichoderma biological agents, garlic extracts and chitosan are used to prevent and control rapeseed sclerotinia. While meeting the needs of rapeseed growth and disease prevention, the mutual cooperation of various components reduces the risk of chemical incompatibility caused by direct contact between certain components, thereby improving the situation that the raw materials of existing rapeseed fertilizers and rapeseed sclerotinia prevention and control agents are chemically incompatible. When applied at the same time, chemical reactions or adsorption will occur in the soil, affecting the activity, stability and release of effective ingredients of the agents, thereby causing the problem of reduced efficacy or even complete loss of the rapeseed sclerotinia prevention and control agents.

[0020] 2. In the present invention, the stirring granulator can stir various raw materials so that the raw materials are fully integrated, and then granulation can be carried out at the same time, thereby saving the time of transporting from the mixer to the granulator and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a flow chart of the manufacturing process of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.

[0023] Please see attached Figure 1The embodiment of the present invention provides a special fertilizer for rapeseed for preventing and controlling rapeseed sclerotinia, comprising the following raw materials in parts by weight: 30-40 parts of urea, 15-25 parts of diammonium phosphate, 10-20 parts of potassium chloride, 20-30 parts of chicken manure, 1-2 parts of borax, 0.5-1 parts of zinc sulfate, 5-10 parts of Trichoderma biological agent, 2-4 parts of garlic extract, and 1-3 parts of chitosan.

[0024] Specifically, urea can provide high-content nitrogen nutrition to promote the growth of rapeseed stems and leaves, enhance photosynthesis, and at the same time regulate soil fertility after conversion in the soil, laying a key role in laying the foundation for the growth and development of rapeseed and the formation of yield. Diammonium phosphate can provide nutrients such as phosphorus and nitrogen, promote the development of rapeseed root system, flower bud differentiation and enhance stress resistance, ensure the growth of rapeseed and increase yield. Potassium chloride can provide potassium to promote the robustness of rapeseed plant stems, enhance lodging resistance and disease and pest resistance, and improve rapeseed quality and yield. Chicken manure can provide rich organic matter and a variety of nutrients, improve soil structure, enhance soil fertility, and promote the growth and development of rapeseed. Borax can provide boron to promote oil Rapeseed pollen germination and pollen tube elongation can improve rapeseed fruit setting rate and seed setting rate. Zinc sulfate can provide zinc to promote rapeseed growth and development, enhance photosynthesis and stress resistance, and improve rapeseed yield and quality. Trichoderma biological agents can produce antagonistic effects, thereby inhibiting the growth of rapeseed sclerotinia disease, enhancing rapeseed's disease resistance and promoting healthy growth of rapeseed. Garlic extract can inhibit the activity of rapeseed sclerotinia disease, enhance rapeseed's resistance to sclerotinia disease, and promote rapeseed growth. Chitosan can induce rapeseed to produce disease resistance, inhibit the growth of sclerotinia disease, regulate rapeseed growth and development, and improve rapeseed yield and quality, thereby meeting the growth of rapeseed while playing a role in preventing rapeseed sclerotinia disease.

[0025] The preparation method of rapeseed special fertilizer for preventing and controlling rapeseed sclerotinia disease comprises the following steps:

[0026] S1. Raw material pretreatment: urea, diammonium phosphate, potassium chloride and chicken manure are crushed, borax and zinc sulfate are ground into fine powder respectively, and the Trichoderma biological agent adopts powdered alkali-resistant strain;

[0027] S2, mixing and granulating: weighing each component of urea, diammonium phosphate, potassium chloride, chicken manure, borax, zinc sulfate, garlic extract and chitosan according to the formula, and then putting them into a stirring granulator to make fertilizer granules;

[0028] S3, adding bacterial agent: after granulation is completed, the Trichoderma biological bacterial agent particles are sprinkled on the surface of the fertilizer particles, and the Trichoderma biological bacterial agent is wrapped on the outer layer of the fertilizer particles with a starch film;

[0029] S4, post-processing: The coated fertilizer particles are dried, and the dried fertilizer particles are passed through a sifter and then packaged and stored.

[0030] In S1, chicken manure is filled in a composting tank with a height not exceeding 3 / 4 of the tank depth, and then the chicken manure is ventilated through a ventilation pipe, the air volume is controlled at 0.05-0.1 cubic meters per minute, the ventilation time is 1-2 hours, the interval time is 2-3 hours, and the chicken manure at the bottom and edge of the composting tank is turned to the upper part 2-3 times a week for 1-2 months to obtain decomposed chicken manure, and the decomposed chicken manure is placed in an air flow dryer, the temperature of the chicken manure is maintained at 60° C.-90° C. by the air flow dryer, the wind speed of the air flow dryer is controlled between 10-30 m / s, and the air flow dryer is controlled between 5-30 minutes. The water content of the chicken manure is controlled at 10%-20% to form dry and decomposed chicken manure.

[0031] Specifically, through ventilation in the composting trough and turning the chicken manure at the bottom and edge of the composting trough to the top, the chicken manure can be fully decomposed, effectively killing harmful bacteria, insect eggs, etc., and decomposing large molecular organic matter into small molecular substances that are more easily absorbed and utilized by rapeseed. At the same time, the risk of seedling burn caused by direct application of uncomposted chicken manure is reduced. By placing the decomposed chicken manure in an air flow dryer, it can prevent mold and deterioration due to excessive moisture, affect the quality of the fertilizer, and induce chemical reactions with other ingredients, thereby ensuring the stability, effectiveness and safety of the fertilizer, providing high-quality organic nutrients for rapeseed growth and optimizing the soil environment.

[0032] In S1, urea, diammonium phosphate, potassium chloride and dry and decomposed chicken manure are respectively crushed by air flow mills to ensure that the feeding speed is 100-200 kg / hour, the air pressure is maintained between 0.6-0.8 MPa, the air flow rate is within the range of 10-30 cubic meters / minute, the gas temperature is controlled between 10-30°C, and the crushing time is controlled between 30 seconds and 2 minutes, ensuring that the particle size of urea after crushing is between 0.5-2 mm, the particle size of diammonium phosphate is between 0.5-1.5 mm, the particle size of potassium chloride is between 0.3-1 mm, and the particle size of chicken manure is between 1-3 mm.

[0033] Specifically, grinding by air flow mill can help improve the uniformity of mixing of various ingredients, ensuring that each portion of fertilizer can accurately provide balanced nutrients for rapeseed, and the appropriate particle size can increase the contact area between raw materials, promote the consistency of chemical reactions and nutrient release, and avoid changes in the physical and chemical properties of raw materials due to excessive grinding or affecting subsequent processes and use effects such as fertilizer granulation and fertilizer effectiveness due to insufficient grinding, thereby ensuring the efficient production and high-quality performance of rapeseed-specific fertilizers.

[0034] In S2, the stirring time is controlled at 20-30 minutes, the stirring speed is controlled at 15-60 rpm, and after the stirring is completed, the fertilizer flows into the granulation chamber through the channel for granulation, and the particle size of the fertilizer particles is controlled at 2-4 mm.

[0035] Specifically, by controlling the stirring time and stirring speed, the distribution of fertilizer components can be ensured to be consistent, so that rapeseed can absorb various nutrients evenly during the growth process, avoiding the impact of local nutrient differences on growth effects.

[0036] In S3, starch and water in the starch film are mixed in a ratio of 1:5-1:10, and stirred in a mixer at 60°C-80°C and 100-200 rpm for 20-30 minutes to form a starch paste. The starch paste is sprayed on the surface of the fertilizer particles at 40°C-60°C and a spray pressure of 0.2-0.5 MPa using a fluidized bed coating machine to form a coating, and the coating thickness is controlled to be 0.1-0.3 mm.

[0037] Specifically, the starch film can effectively isolate the Trichoderma biological agent from other components in the fertilizer granules to prevent the inactivation of the agent or the degradation of fertilizer performance due to chemical incompatibility. At the same time, the coating can control the release rate of the agent to a certain extent, so that it is slowly released in the soil and plays a long-term role in preventing and controlling rapeseed sclerotinia disease. In addition, it can also improve the physical properties of the fertilizer granules such as moisture resistance and wear resistance, making it easier to store and apply.

[0038] In S4, the fertilizer particles are dried by a dryer, the drying temperature is controlled at 45° C.-55° C., and the drying time is continued for 25-30 minutes to ensure that the moisture content is 5%-8%.

[0039] Specifically, the dryer can effectively reduce the moisture content of fertilizer particles, preventing the fertilizer from becoming moldy and deteriorating, and agglomerating due to excessive moisture, which affects its use. At the same time, it ensures the physical properties and chemical stability of the fertilizer, which is conducive to long-term storage and transportation.

[0040] The invention is based on the application of rapeseed-specific fertilizer in preventing and controlling rapeseed sclerotinia rot, and is used in preventing and controlling rapeseed sclerotinia rot, promoting rapeseed growth and increasing rapeseed yield.

[0041] Specifically, urea, diammonium phosphate and potassium chloride can provide basic nutrients to promote rapeseed growth, and Trichoderma biological agents, garlic extract and chitosan can prevent and control rapeseed sclerotinia disease to increase rapeseed yield.

[0042] The following is further introduced in conjunction with specific embodiments:

[0043] Embodiment 1:

[0044] The weight parts of the raw materials in the rapeseed special fertilizer for preventing and controlling rapeseed sclerotinia are 30 parts of urea, 15 parts of diammonium phosphate, 10 parts of potassium chloride, 20 parts of chicken manure, 1 part of borax, 0.5 parts of zinc sulfate, 5 parts of Trichoderma biological agent, 2 parts of garlic extract and 1 part of chitosan.

[0045] The method for preparing the special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia rot comprises the following steps:

[0046] S1. Raw material pretreatment: urea, diammonium phosphate, potassium chloride and chicken manure are crushed, borax and zinc sulfate are ground into fine powder respectively, and the Trichoderma biological agent adopts powdered alkali-resistant strain;

[0047] S2, mixing and granulating: weighing each component of urea, diammonium phosphate, potassium chloride, chicken manure, borax, zinc sulfate, garlic extract and chitosan according to the formula, and then putting them into a stirring granulator to make fertilizer granules;

[0048] S3, adding bacterial agent: after granulation is completed, the Trichoderma biological bacterial agent particles are sprinkled on the surface of the fertilizer particles, and the Trichoderma biological bacterial agent is wrapped on the outer layer of the fertilizer particles with a starch film;

[0049] S4, post-processing: The coated fertilizer particles are dried, and the dried fertilizer particles are passed through a sifter and then packaged and stored.

[0050] Embodiment 2:

[0051] The difference between this embodiment and the above-mentioned embodiment 1 is that:

[0052] 35 parts of urea, 20 parts of diammonium phosphate, 15 parts of potassium chloride, 25 parts of chicken manure, 1.5 parts of borax, 0.75 parts of zinc sulfate, 7.5 parts of Trichoderma biological agent, 3 parts of garlic extract, and 2 parts of chitosan.

[0053] Embodiment 3:

[0054] The difference between this embodiment and the above-mentioned embodiment 1 and embodiment 2 is that:

[0055] 40 parts of urea, 25 parts of diammonium phosphate, 20 parts of potassium chloride, 30 parts of chicken manure, 2 parts of borax, 1 part of zinc sulfate, 10 parts of Trichoderma biological bacterial agent, 4 parts of garlic extract, and 3 parts of chitosan.

[0056] Table 1:

[0057] contrast Example 1 Example 2 Example 3 Standard value Disease index (%) 30 20 10 50 Rapeseed height (mm) 100 150 200 75

[0058] The comparison in Table 1 above is the disease index and rapeseed height. Under the same conditions, the rapeseed special fertilizer for preventing and controlling rapeseed sclerotinia disease in Examples 1-3 is applied. After continuous application for 15 days, the ratio of the number of diseased rapeseed to the total number of investigated rapeseed is the disease index. The standard value in Table 1 above is obtained from an experimental example in which no fertilizer or disease prevention agent is used. By changing the raw material components in each example, the results of Examples 1-3 in Table 1 are obtained through experiments. Table 1 can reflect that the raw material combination can effectively improve the growth of rapeseed while reducing the occurrence of diseases.

[0059] 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 special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia disease, characterized in that: The invention comprises the following raw materials in parts by weight: 30-40 parts of urea, 15-25 parts of diammonium phosphate, 10-20 parts of potassium chloride, 20-30 parts of chicken manure, 1-2 parts of borax, 0.5-1 parts of zinc sulfate, 5-10 parts of Trichoderma biological agent, 2-4 parts of garlic extract and 1-3 parts of chitosan.

2. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia according to claim 1, comprising the following steps: S1. Raw material pretreatment: pulverizing urea, diammonium phosphate, potassium chloride and chicken manure, grinding borax and zinc sulfate into fine powder respectively, and using a powdered alkali-resistant strain of Trichoderma as the biological agent; S2, mixing and granulating: weighing each component of urea, diammonium phosphate, potassium chloride, chicken manure, borax, zinc sulfate, garlic extract and chitosan according to the formula, and then putting them into a stirring granulator to make fertilizer granules; S3, adding bacterial agent: after granulation is completed, the Trichoderma biological bacterial agent particles are sprinkled on the surface of the fertilizer particles, and the Trichoderma biological bacterial agent is wrapped on the outer layer of the fertilizer particles with a starch film; S4, post-processing: The coated fertilizer particles are dried, and the dried fertilizer particles are passed through a sifter and then packaged and stored.

3. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia according to claim 2, characterized in that: In the S1, chicken manure is filled in a composting tank with a height not exceeding 3 / 4 of the tank depth, and then the chicken manure is ventilated through a ventilation pipe, the air volume is controlled at 0.05-0.1 cubic meters per minute, the ventilation time is 1-2 hours, the interval time is 2-3 hours, the chicken manure at the bottom and edge of the composting tank is turned to the upper part 2-3 times a week, and the process lasts for 1-2 months to obtain decomposed chicken manure, and the decomposed chicken manure is placed in an air flow dryer, the temperature of the chicken manure is maintained at 60° C.-90° C. by the air flow dryer, the wind speed of the air flow dryer is controlled between 10-30 m / s, and the process lasts for 5-30 minutes, and the moisture content of the chicken manure is controlled at 10%-20% to form dry and decomposed chicken manure.

4. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia according to claim 2, characterized in that: The urea, diammonium phosphate, potassium chloride and dry and decomposed chicken manure in S1 are respectively crushed by a gas flow mill to ensure that the feeding rate is 100-200 kg / hour, the air pressure is maintained between 0.6-0.8 MPa, the air flow rate is within the range of 10-30 cubic meters / minute, the gas temperature is controlled between 10-30°C, and the crushing time is controlled between 30 seconds and 2 minutes, ensuring that the particle size of the crushed urea is between 0.5-2 mm, the particle size of the diammonium phosphate is between 0.5-1.5 mm, the particle size of the potassium chloride is between 0.3-1 mm, and the particle size of the chicken manure is between 1-3 mm.

5. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia according to claim 2, characterized in that: In S2, the stirring time is controlled at 20-30 minutes, the stirring speed is controlled at 15-60 rpm, and after the stirring is completed, the fertilizer flows into the granulation chamber through the channel for granulation, and the particle size of the fertilizer particles is controlled at 2-4 mm.

6. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia according to claim 2, characterized in that: In S3, the starch and water in the starch film are mixed in a ratio of 1:5-1:10, and stirred in a mixer at 60°C-80°C and 100-200 rpm for 20-30 minutes to form a starch paste. The starch paste is sprayed on the surface of the fertilizer particles at 40°C-60°C and a spray pressure of 0.2-0.5 MPa using a fluidized bed coating machine to form a coating, and the coating thickness is controlled to be 0.1-0.3 mm.

7. The method for preparing a special fertilizer for rapeseed based on the prevention and treatment of rapeseed sclerotinia disease according to claim 2, characterized in that: In S4, the fertilizer particles are dried by a dryer, the drying temperature is controlled at 45° C.-55° C., and the drying time is continued for 25-30 minutes to ensure that the moisture content is 5%-8%.

8. An application of the rapeseed-specific fertilizer for preventing and controlling rapeseed sclerotinia rot according to claim 1, characterized in that: It is used in preventing and controlling rapeseed sclerotinia disease, promoting rapeseed growth and increasing rapeseed yield.

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