A method for green control of soil diseases using microwaves

Abstract

This invention discloses a method for green control of soil diseases using microwaves. The method involves using a soil tiller to break up and collect soil, spraying the collected soil with a soil treatment agent, and then sending the soil into a microwave cavity for microwave treatment. The microwave treatment time is 10–30 seconds, the microwave treatment temperature is 70–100℃, and the microwave frequency is 300–3000MHz. The soil treatment agent includes rhamnolipids, rosmarinic acid, graphite, a silane coupling agent, and water. After microwave treatment, the soil is sprayed with a soil conditioner, and then the soil is returned to the field. The soil conditioner includes acrylic acid, Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide, polyethylene glycol, water, and potassium persulfate. This invention not only solves the problems of pesticide residue pollution and increased pesticide resistance in traditional chemical control methods, but also addresses the issue of ineffective physical control methods.

Description

Technical Field

[0001] This invention belongs to the field of soil disease prevention and control technology, specifically relating to a method for green control of soil diseases using microwaves. Background Technology

[0002] Farmland soil disease control mainly includes weed control and soil pest and disease control. Farmland weeds refer to plants that grow widely in farmland, harm crops, urgently need to be removed, and are not intentionally cultivated. Because weeds have extensive root systems, strong absorption capacity, and high photosynthetic efficiency, they have a special ability to interfere with crops. Weeds can deprive crops of the water, nutrients, and sunlight needed for growth, thus severely inhibiting crop growth and development, easily leading to reduced yields and lower quality. Weeds not only reproduce by producing a large number of seeds, but perennial weeds can also reproduce asexually through organs such as root buds, rhizomes, stolons, tubers, bulbs, and shoots. If weeding is not done properly in a given year or a small number of weeds remain, weed infestations can still occur the following year. Furthermore, some fertilizers mixed with weed seeds, applied to farmland without sufficient fermentation and decomposition, can cause weed germination and weed infestations. Soil pest and disease control refers to the prevention and control of pathogens or insect eggs present in the soil. For the prevention and control of soil diseases in farmland, traditional chemical treatment methods not only easily leave residues in the farmland and cause pollution, but also only treat the symptoms and not the root cause, increasing the drug resistance of pathogenic microorganisms and pests, making the diseases more difficult to eradicate. Physical methods such as deep plowing, tilling, or manual weeding, although they do not use chemical agents that are harmful to farmland, are not as effective as chemical methods in removing weeds or insect eggs, and are more likely to leave some weed seeds or insect eggs behind. Summary of the Invention

[0003] To address the aforementioned shortcomings, this invention discloses a method for green control of soil diseases using microwaves. This method not only solves the problems of environmental pollution from drug residues and increased drug resistance in traditional chemical treatment methods, but also addresses the issue of ineffective physical control methods.

[0004] This invention is achieved using the following technical solution:

[0005] A method for controlling soil diseases using microwave technology includes the following steps:

[0006] (1) Use a soil turner to break up and collect soil, spray the collected soil with a soil treatment agent, the volume ratio of the soil treatment agent to the mass of the soil is (5-10) mL:100g, and then send the soil to a microwave cavity for microwave treatment. The microwave treatment time is 10-30s, the microwave treatment temperature is 70-100℃, and the microwave frequency is 300-3000MHz. The soil treatment agent includes the following raw material components in parts by weight: rhamnolipid 10-20 parts, rosmarinic acid 3-5 parts, graphene 10-20 parts, silane coupling agent 0.5-1 parts, and water 1000 parts.

[0007] (2) Spray the soil treated by microwave with soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is (5-20) mL: 100g, and the soil conditioner includes the following raw material components in parts by weight: 50-80 parts of acrylic acid, 10-15 parts of Camellia chrysantha hydrosol, 10-15 parts of mulberry leaf hydrosol, 5-8 parts of sodium chloride, 5-8 parts of potassium dihydrogen phosphate, 10-20 parts of Tremella fuciformis heteropolysaccharide, 10-20 parts of polyethylene glycol, 100 parts of water, and 1-3 parts of potassium persulfate.

[0008] This invention utilizes microwave treatment of soil, employing the thermal and biological effects of microwaves to kill soil nematodes and their eggs, weed roots, and grass seeds. Furthermore, microwaves selectively target eukaryotic organisms, and since the greatest biological threat in soils such as sugarcane fields is precisely eukaryotic fungi, this method maximizes the preservation of beneficial microbial communities, thereby optimizing soil microbial community structure and improving soil productivity. Simultaneously, this invention optimizes the microwave treatment frequency, power, treatment time, temperature, and soil thickness, enabling rapid and effective elimination of soil diseases and fungi. To achieve the desired microwave treatment effect, this invention pre-treats the soil with a soil treatment agent obtained by mixing rhamnolipids, rosmarinic acid, graphene, silane coupling agent, and water before microwave treatment. Since graphene, as a spatial waveguide, has good electrical conductivity, it forms conductive chains or local conductive networks within the soil. Under the action of microwaves, internal polarization occurs, with the intensity vector of the polarization lagging behind the electric field by an angle, resulting in the generation of a current identical to the electric field. This establishes eddy currents, converting electrical energy into heat energy, causing surrounding molecules to vibrate. This enhances the heating effect of microwaves and also promotes the non-thermal effects of microwave energy, causing mutations in proteins and physiologically active substances within microorganisms, leading to loss of vitality or death. Furthermore, this invention uses rhamnolipids and rosmarinic acid to modify graphene, promoting the penetration and uniform dispersion of graphene in the soil through their cross-linking with graphene, thereby enhancing the promoting effect of graphene.

[0009] This invention involves spraying a soil conditioner onto microwave-treated soil, which not only enhances the soil's antibacterial properties but also replenishes it with nutrients. The soil conditioner contains antibacterial components such as Camellia chrysantha hydrosol and mulberry leaf hydrosol, as well as nutrient components such as sodium chloride, potassium dihydrogen phosphate, and Tremella fuciformis heteropolysaccharide. The added Tremella fuciformis heteropolysaccharide also promotes uniform mixing of the Camellia chrysantha hydrosol and mulberry leaf hydrosol with sodium chloride and potassium dihydrogen phosphate. Furthermore, this invention utilizes acrylic acid polymerized under the action of polyethylene glycol and potassium persulfate to encapsulate the mixture containing both antibacterial and nutrient components, ultimately yielding microspheres with a slow-release effect. These microspheres not only disperse uniformly in the soil but also slowly release the antibacterial and nutrient components, resulting in long-term improvement of the soil environment.

[0010] Furthermore, the thickness of the soil layer for microwave treatment in step (1) is 15-25 cm. By controlling the thickness of the soil layer, it can be ensured that the microwave completely covers the soil to be treated and can act evenly on the soil interior.

[0011] Furthermore, the microwave treatment in step (1) uses microwaves with a power of 2000–5000 W, and the power density of the microwave-treated soil is controlled to be 6000–8000 J / m³. 3 .

[0012] Furthermore, the microwave processing in step (1) uses a microwave frequency of 915MHz.

[0013] Furthermore, the soil treatment agent described in step (1) is prepared by sequentially adding rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water, and then reacting for 1 to 2 hours at a temperature of 40 to 50°C and a reaction rate of 100 to 200 r / min to obtain the soil treatment agent.

[0014] Furthermore, during the microwave processing described in step (1), the microwave generator operates once every 20 to 30 seconds to feed microwaves into the microwave cavity, and each operation of the microwave generator lasts for 30 to 45 seconds. By controlling the operating time and interval of the microwave generator, it is not only beneficial to control the microwave processing temperature, but also to effectively save energy consumption.

[0015] Furthermore, the Camellia chrysantha hydrosol and mulberry leaf hydrosol mentioned in step (2) are condensed aqueous solutions obtained by distilling Camellia chrysantha and mulberry leaves, respectively.

[0016] Furthermore, the method for preparing the soil conditioner in step (2) is to first mix the golden camellia hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, tremella heteropolysaccharide and water evenly to obtain a mixed solution, then mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 50-60℃ and react at a constant temperature for 5-10 minutes, then add the mixed solution and continue the reaction for 1-2 hours, and then cool naturally to room temperature to obtain the soil conditioner.

[0017] Compared with existing technologies, this technical solution has the following advantages:

[0018] 1. This invention utilizes the thermal and biological effects of microwaves to specifically kill weeds, pests, and fungi in the soil. Furthermore, by adding a soil treatment agent prepared from a mixture of rhamnolipids, rosmarinic acid, and graphene for pre-treatment via spraying, the microwave effect is further enhanced, achieving rapid and effective soil treatment. This invention does not add any toxic or harmful chemical agents, solving the problems of pesticide residue pollution and increased disease resistance associated with traditional chemical control methods. It also improves the effectiveness and efficiency of microwave physical control methods.

[0019] 2. This invention uses a mixture of Camellia chrysantha hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate and Tremella fuciformis heteropolysaccharide to formulate a soil conditioner suitable for soil. Furthermore, the conditioner is encapsulated with acrylic acid to obtain slow-release microspheres, which can not only be uniformly dispersed in the soil, but also slowly release antibacterial and nutrient components to achieve long-term soil improvement. Detailed Implementation

[0020] The present invention is further illustrated by the following examples, but these are not intended to limit the invention. Specific experimental conditions and methods not specified in the following examples are generally conventional methods well known to those skilled in the art.

[0021] Example 1: A method for controlling soil diseases using microwave technology, comprising the following steps:

[0022] (1) Soil was crushed and collected using a soil turner. The collected soil was sprayed with a soil treatment agent, the volume ratio of the soil treatment agent to the mass ratio of the soil being 8.5 mL: 100 g. The soil was then sent to a microwave cavity for microwave treatment. The microwave treatment time was 20 s, the microwave treatment temperature was 75 ℃, and the microwave frequency was 915 MHz. The thickness of the microwave-treated soil was 20 cm. The microwave power used for the microwave treatment was 3000 W, and the power density of the microwave-treated soil was controlled at 7000 J / m³. 3 During the microwave processing, the microwave generator operates once every 25 seconds to feed microwaves into the microwave cavity, and each operation of the microwave generator lasts for 40 seconds.

[0023] The soil treatment agent comprises the following raw material components in parts by weight: 14 parts rhamnolipin, 4.5 parts rosmarinic acid, 15 parts graphene, 0.8 parts silane coupling agent, and 1000 parts water. The preparation method of the soil treatment agent is to add rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water in sequence, and then react them at a temperature of 42℃ and a reaction rate of 150 r / min for 1.5 h to obtain the soil treatment agent.

[0024] (2) Spray the soil treated by microwave with a soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is 10mL:100g, and the soil conditioner includes the following raw material components in parts by weight: 75 parts acrylic acid, 12 parts Camellia chrysantha hydrosol, 11 parts mulberry leaf hydrosol, 6 parts sodium chloride, 7.5 parts potassium dihydrogen phosphate, 15 parts Tremella fuciformis heteropolysaccharide, 13.5 parts polyethylene glycol, 100 parts water, and 1.5 parts potassium persulfate; the Camellia chrysantha hydrosol and mulberry leaf hydrosol are condensed aqueous solutions obtained by distillation of Camellia chrysantha and mulberry leaves, respectively.

[0025] The method for preparing the soil conditioner is as follows: First, stir and mix Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water to obtain a mixed solution. Then, stir and mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 55°C and react at a constant temperature for 8 minutes. Then, add the mixed solution and continue to react for 1.5 hours. After naturally cooling to room temperature, the soil conditioner is obtained.

[0026] Example 2: A method for controlling soil diseases using microwave technology, comprising the following steps:

[0027] (1) Soil was crushed and collected using a soil turner. The collected soil was sprayed with a soil treatment agent, the volume ratio of the soil treatment agent to the mass of the soil being 5 mL: 100 g. The soil was then sent to a microwave cavity for microwave treatment. The microwave treatment time was 10 s, the microwave treatment temperature was 70 ℃, and the microwave frequency was 433 MHz. The thickness of the microwave-treated soil was 15 cm. The microwave treatment used a microwave with a power of 2000 W, and the power density of the microwave-treated soil was controlled to be 6000 J / m³. 3 During the microwave processing, the microwave generator feeds microwaves into the microwave cavity every 20 seconds, and each operation of the microwave generator lasts for 45 seconds.

[0028] The soil treatment agent comprises the following raw material components in parts by weight: 10 parts rhamnolipin, 3 parts rosmarinic acid, 10 parts graphene, 0.5 parts silane coupling agent, and 1000 parts water. The preparation method of the soil treatment agent is to add rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water in sequence, and then react them at a temperature of 40°C and a reaction rate of 100 r / min for 1 hour to obtain the soil treatment agent.

[0029] (2) Spray the soil treated by microwave with soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is 5 mL: 100 g, and the soil conditioner includes the following raw material components in parts by weight: 50 parts acrylic acid, 10 parts Camellia chrysantha hydrosol, 10 parts mulberry leaf hydrosol, 5 parts sodium chloride, 5 parts potassium dihydrogen phosphate, 10 parts Tremella fuciformis heteropolysaccharide, 10 parts polyethylene glycol, 100 parts water, and 1 part potassium persulfate; the Camellia chrysantha hydrosol and mulberry leaf hydrosol are condensed aqueous solutions obtained by distillation of Camellia chrysantha and mulberry leaves respectively.

[0030] The method for preparing the soil conditioner is as follows: First, stir and mix Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water to obtain a mixed solution. Then, stir and mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 50°C and react at a constant temperature for 5 minutes. Then, add the mixed solution and continue to react for 1 hour. After naturally cooling to room temperature, the soil conditioner is obtained.

[0031] Example 3: A method for green control of soil diseases using microwaves, comprising the following steps:

[0032] (1) Soil was crushed and collected using a soil turner. Soil treatment agent was sprayed onto the collected soil, with a volume ratio of 6 mL to 100 g of soil treatment agent. The soil was then sent to a microwave cavity for microwave treatment. The microwave treatment time was 25 s, the microwave treatment temperature was 80 ℃, and the microwave frequency was 2450 MHz. The thickness of the microwave-treated soil was 22 cm. The microwave treatment used a microwave with a power of 4000 W, and the power density of the microwave-treated soil was controlled to be 6500 J / m³. 3 During the microwave processing, the microwave generator operates once every 25 seconds to feed microwaves into the microwave cavity, and each operation of the microwave generator lasts for 35 seconds.

[0033] The soil treatment agent comprises the following raw material components in parts by weight: 18 parts rhamnolipin, 3.5 parts rosmarinic acid, 18 parts graphene, 0.75 parts silane coupling agent, and 1000 parts water. The preparation method of the soil treatment agent is to add rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water in sequence, and then react them at a temperature of 45°C and a reaction rate of 180 r / min for 1.5 h to obtain the soil treatment agent.

[0034] (2) Spray the soil treated by microwave with soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is 15mL:100g, and the soil conditioner includes the following raw material components in parts by weight: 65 parts acrylic acid, 14 parts Camellia chrysantha hydrosol, 12 parts mulberry leaf hydrosol, 7 parts sodium chloride, 6 parts potassium dihydrogen phosphate, 18 parts Tremella fuciformis heteropolysaccharide, 17 parts polyethylene glycol, 100 parts water, and 2 parts potassium persulfate; the Camellia chrysantha hydrosol and mulberry leaf hydrosol are condensed aqueous solutions obtained by distillation of Camellia chrysantha and mulberry leaves respectively.

[0035] The method for preparing the soil conditioner is as follows: First, stir and mix Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water to obtain a mixed solution. Then, stir and mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 58°C and react at a constant temperature for 9 minutes. Then, add the mixed solution and continue to react for 1.5 hours. After naturally cooling to room temperature, the soil conditioner is obtained.

[0036] Example 4: A method for green control of soil diseases using microwaves, comprising the following steps:

[0037] (1) Soil was crushed and collected using a soil turner. The collected soil was sprayed with a soil treatment agent, the volume ratio of the soil treatment agent to the mass ratio of the soil being 10 mL: 100 g. The soil was then sent to a microwave cavity for microwave treatment. The microwave treatment time was 30 s, the microwave treatment temperature was 100 ℃, and the microwave frequency was 3000 MHz. The thickness of the microwave-treated soil was 25 cm. The microwave treatment used a microwave with a power of 5000 W, and the power density of the microwave-treated soil was controlled to be 8000 J / m³. 3 During the microwave processing, the microwave generator operates once every 30 seconds to feed microwaves into the microwave cavity, and each operation of the microwave generator lasts for 30 seconds.

[0038] The soil treatment agent comprises the following raw material components in parts by weight: 20 parts rhamnolipin, 5 parts rosmarinic acid, 20 parts graphene, 1 part silane coupling agent, and 1000 parts water. The preparation method of the soil treatment agent is to add rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water in sequence, and then react them at a temperature of 50°C and a reaction rate of 200 r / min for 2 hours to obtain the soil treatment agent.

[0039] (2) Spray the soil treated by microwave with soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is 20mL:100g, and the soil conditioner includes the following raw material components in parts by weight: 80 parts acrylic acid, 15 parts Camellia chrysantha hydrosol, 15 parts mulberry leaf hydrosol, 8 parts sodium chloride, 8 parts potassium dihydrogen phosphate, 20 parts Tremella fuciformis heteropolysaccharide, 20 parts polyethylene glycol, 100 parts water, and 3 parts potassium persulfate; the Camellia chrysantha hydrosol and mulberry leaf hydrosol are condensed aqueous solutions obtained by distillation of Camellia chrysantha and mulberry leaves respectively.

[0040] The method for preparing the soil conditioner is as follows: First, stir and mix Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water to obtain a mixed solution. Then, stir and mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 60°C and react at a constant temperature for 10 minutes. Then, add the mixed solution and continue to react for 2 hours. After naturally cooling to room temperature, the soil conditioner is obtained.

[0041] Example 5: The method for green control of soil diseases using microwave described in this embodiment differs from the method described in Example 1 only in that the microwave generator works continuously during the microwave treatment process in step (1).

[0042] Example 6: The method for green control of soil diseases using microwave described in this embodiment differs from the method described in Example 2 only in that the microwave generator works continuously during the microwave treatment process in step (1).

[0043] Comparative Example 1: The method for green control of soil diseases using microwave described in this comparative example differs from the method described in Example 1 only in that the microwave frequency used in step (1) is 950MHz.

[0044] Comparative Example 2: The method for green control of soil diseases using microwave described in this comparative example differs from the method described in Example 1 only in that no soil treatment agent is used in step (1), but microwave treatment is performed directly.

[0045] Comparative Example 3: The method for green control of soil diseases using microwave described in this comparative example differs from the method described in Example 1 only in that step (2) is omitted and soil conditioner is not used to treat the microwave-treated soil.

[0046] Comparative Example 4: The difference between the method for controlling soil diseases using microwave green technology described in this comparative example and the method described in Example 1 is that, in step (2), the soil conditioner includes the following raw material components in parts by weight: 12 parts of Camellia chrysantha hydrosol, 11 parts of mulberry leaf hydrosol, 6 parts of sodium chloride, 7.5 parts of potassium dihydrogen phosphate, 15 parts of Tremella fuciformis heteropolysaccharide, and 100 parts of water; the method for preparing the soil conditioner is to stir and mix Camellia chrysantha hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water evenly.

[0047] Experimental Example 1: Soil from sugarcane fields affected by sugarcane top rot in the current year was taken and treated according to the methods described in Examples 1-6 and Comparative Examples 1-4. The number of bacteria in the soil was then determined by plate count method. Untreated sugarcane soil was used as a control. The inhibition rate of different treatment methods was calculated. The inhibition rate was (colon diameter of control - colony diameter after treatment) / colony diameter of control × 100%. The specific results are shown in Table 1. The soil was stored at a temperature of 20-25℃ and a humidity of 60-70% for 15 days, and the number of bacteria in the soil was determined by plate count method again. The inhibition rate at this time was calculated. The specific results are shown in Table 2.

[0048] Table 1. Antibacterial results of different treatment methods

[0049]

[0050] As can be seen from the above data, the soil antibacterial effect obtained by the method of the present invention is the best, while the antibacterial effect obtained by Comparative Example 1, which uses low-frequency microwave treatment, and Comparative Example 2, which does not use soil pretreatment agent, is significantly reduced.

[0051] Table 2. Antibacterial results of soil treated with different methods 15 days later.

[0052]

[0053] As can be seen from the above data, the antibacterial effect of soil in Comparative Examples 3 and 4, which did not use soil conditioner, decreased significantly, while the soil treated by the method of the present invention still achieved a good antibacterial effect after 15 days.

[0054] Experimental Example 2: Soil from sugarcane fields that had experienced sugarcane top rot in the current year was taken and treated according to the method described in Example 1. The thickness of the microwave-treated soil was 5cm, 10cm, 15cm, 25cm, 30cm, 40cm, and 50cm. The number of bacteria in the soil was then determined by plate count method. Untreated sugarcane soil was used as a control. The inhibition rate of different treatment methods was statistically analyzed. The specific results are shown in Table 3.

[0055] Table 3. Antibacterial results after soil treatment with different thicknesses

[0056]

[0057] As can be seen from the above data, the thinner the soil layer, the better the microwave treatment effect. However, if the soil layer is too thin, it will prolong the soil treatment time and affect the treatment efficiency, while if the soil layer is too thick, it will affect the microwave treatment effect.

[0058] Experiment Example 3: Field experiment. Two sugarcane fields of similar size were selected in parallel for sugarcane planting experiments. One sugarcane field was treated with the method described in Example 1, while the other sugarcane field was not treated with soil. The sugarcane planting process was the same. The weed and pest conditions of the two sugarcane fields were observed and compared. The specific results are shown in Table 4.

[0059] Table 4 Comparison of sugarcane cultivation in soils treated with different methods

[0060]

[0061] As can be seen from the above data, soil treated according to the method of the present invention can effectively reduce the impact of weeds and pests after sugarcane is planted.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for green control of soil diseases using microwaves, characterized in that: Includes the following steps: (1) Use a soil turner to break up and collect soil, spray the collected soil with a soil treatment agent, the volume ratio of the soil treatment agent to the mass of the soil is (5-10) mL:100g, and then send the soil to a microwave cavity for microwave treatment. The microwave treatment time is 10-30 s, the microwave treatment temperature is 70-100℃, and the microwave frequency is 300-3000MHz. The soil treatment agent includes the following raw material components in parts by weight: rhamnolipid 10-20 parts, rosmarinic acid 3-5 parts, graphene 10-20 parts, silane coupling agent 0.5-1 parts, and water 1000 parts. The soil treatment agent is prepared by adding rhamnolipin, rosmarinic acid, graphene, and silane coupling agent to water in sequence, and then reacting for 1 to 2 hours at a temperature of 40 to 50°C and a reaction rate of 100 to 200 r / min to obtain the soil treatment agent. (2) Spray the soil treated by microwave with soil conditioner, and then return the soil to the field; the volume ratio of the soil conditioner to the mass of the soil is (5-20) mL: 100g, and the soil conditioner includes the following raw material components in parts by weight: 50-80 parts of acrylic acid, 10-15 parts of Camellia chrysantha hydrosol, 10-15 parts of mulberry leaf hydrosol, 5-8 parts of sodium chloride, 5-8 parts of potassium dihydrogen phosphate, 10-20 parts of Tremella fuciformis heteropolysaccharide, 10-20 parts of polyethylene glycol, 100 parts of water, and 1-3 parts of potassium persulfate; The method for preparing the soil conditioner is as follows: First, stir and mix Camellia chrysanthemi hydrosol, mulberry leaf hydrosol, sodium chloride, potassium dihydrogen phosphate, Tremella fuciformis heteropolysaccharide and water to obtain a mixed solution. Then, stir and mix acrylic acid, polyethylene glycol and potassium persulfate, heat to 50-60℃ and react at a constant temperature for 5-10 minutes. Then, add the mixed solution and continue to react for 1-2 hours. After naturally cooling to room temperature, the soil conditioner is obtained.

2. The method for green control of soil diseases using microwaves according to claim 1, characterized in that: The thickness of the microwave-treated soil in step (1) is 15-25 cm.

3. The method for green control of soil diseases using microwaves according to claim 1, characterized in that: The microwave treatment in step (1) uses microwaves with a power of 2000–5000W, and the power density of the microwave-treated soil is controlled to be 6000–8000 J / m³. 3 .

4. The method for green control of soil diseases using microwaves according to claim 1, characterized in that: The microwave processing described in step (1) uses a microwave frequency of 915MHz.

5. The method for green control of soil diseases using microwaves according to claim 1, characterized in that: During the microwave processing described in step (1), the microwave generator feeds microwaves into the microwave cavity every 20 to 30 seconds, and each operation of the microwave generator lasts for 30 to 45 seconds.

6. The method for green control of soil diseases using microwaves according to claim 1, characterized in that: The Camellia chrysantha hydrosol and mulberry leaf hydrosol mentioned in step (2) are condensed aqueous solutions obtained by distilling Camellia chrysantha and mulberry leaves, respectively.

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