Method for repairing and improving secondary salinized soil in facility agriculture

Abstract

The invention belongs to the technical field of soil remediation, and discloses a facility agriculture secondary salinization soil remediation and improvement method, which comprises the following steps: acquiring monitoring data of facility agriculture secondary salinization soil to be remedied and improved, and periodically acquiring soil salinity content conditions in different regions in different periods according to the monitoring data, the change rule of the salinity of the soil to be remediated is determined; the facility agriculture secondary salinization soil remediation modifier is prepared; according to the change rule of the salinity of the to-be-remedied soil, a soil remediation modifier is spread into the to-be-remedied and improved soil, and rotary tillage, watering and airing are conducted; an organic fertilizer and a bulking agent are applied to the soil to be remediated, and rotary tillage is conducted again; leguminous plant seeds and rhizobium are planted and irrigated with water, and the plants are fully returned to the field after growing up. The soil conditioner can effectively relieve soil hardening and reduce the content of salt and harmful microorganisms in soil, is good in effect and short in period, and effectively adjusts the pH value of the soil; by applying the organic fertilizer and the bulking agent, the looseness of the soil is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil remediation, and particularly relates to a method for remediating and improving secondary salinized soil in protected agriculture. Background Art

[0002] At present, protected agriculture is a modern agricultural method that uses engineering and technical means to efficiently produce animals and plants under relatively controllable environmental conditions. Using protected agriculture can greatly increase crop yields, bring rich economic returns to farmers, and achieve significant economic and social benefits.

[0003] However, protected agriculture has changed the ecological environment of the soil. The soil is often in an environment of high temperature, high humidity, high evaporation, and no rainwater leaching, and a large amount of fertilizers are used. These have led to the emergence of secondary salinization of the soil, and secondary salinization of the soil will greatly affect crop growth.

[0004] Among the existing methods for remediating and improving secondary salinized soil in protected agriculture, the method of flushing with water to remove salts will cause the loss of nutrient elements in the soil and pollute groundwater seriously in severe cases; the method of deep plowing and turning the soil only treats the symptoms but not the root causes. After treatment, after a period of planting, the salts will move up to the surface again; the method of increasing the application of straw has a slow effect and requires a long period. Therefore, there is an urgent need to design a new method for remediating and improving secondary salinized soil in protected agriculture.

[0005] Through the above analysis, the problems and defects of the existing technology are as follows: Among the existing methods for remediating and improving secondary salinized soil in protected agriculture, the method of flushing with water to remove salts will cause the loss of nutrient elements in the soil and pollute groundwater seriously in severe cases; the method of deep plowing and turning the soil only treats the symptoms but not the root causes, and the method of increasing the application of straw has a slow effect and a long period. Summary of the Invention

[0006] Aiming at the problems existing in the existing technology, the present invention provides a method for remediating and improving secondary salinized soil in protected agriculture.

[0007] The present invention is implemented as follows. A method for remediating and improving secondary salinized soil in protected agriculture, the method for remediating and improving secondary salinized soil in protected agriculture includes the following steps:

[0008] Step 1, determining the change rule of the salt content in the secondary salinized soil of protected agriculture to be remediated and improved: obtaining the monitoring data of the secondary salinized soil of protected agriculture to be remediated and improved, periodically obtaining the soil salt content status in different regions at different times according to the monitoring data, and determining the change rule of the salt content in the soil to be remediated;

[0009] Step 2: Prepare the soil remediation and improvement agent for secondary salinized greenhouse soil: Use organic fertilizer, biochar, humic acid, Bacillus licheniformis and Paenibacillus mucilaginosus fermentation broth, activator, and slag to prepare the remediation and improvement agent through steps of crushing, modification, activation, granulation, drying, and cooling;

[0010] Step 3: Apply the soil remediation and improvement agent for secondary salinized greenhouse soil: According to the variation law of soil salinity in the soil to be repaired, apply the soil remediation and improvement agent prepared in Step 2 to the soil to be repaired and improved, rotary till, water, and sun-dry;

[0011] Step 4: Plow and biologically treat the secondary salinized greenhouse soil: After sun-drying for 3 - 5 days, apply organic fertilizer and loosening agent to the soil to be repaired, and rotary till again; Plant leguminous plant seeds and rhizobia and water them. After the plants grow, return them to the field in full amount.

[0012] Furthermore, the method for detecting the pH value of the secondary salinized greenhouse soil to be repaired and improved in Step 1 includes:

[0013] (1) Use a high-definition camera to monitor the secondary salinized greenhouse soil to be repaired and improved in real time, and obtain the monitoring data of the secondary salinized greenhouse soil to be repaired and improved;

[0014] (2) Periodically collect samples of the secondary salinized greenhouse soil to be repaired and improved and measure the soil salinity, nutrient, and salt ion content to obtain the soil salinity content status in different regions at different times;

[0015] (3) According to the soil salinity content status in different regions at different times, summarize and sort out the salinity change data from the perspectives of time and space to obtain the variation law of the soil salinity in the soil to be repaired.

[0016] Furthermore, the variation law of the soil salinity in the soil to be repaired in Step (3) includes the salinity change of the secondary salinized greenhouse soil to be repaired and improved, the variation laws of the pH value and organic matter of the secondary salinized greenhouse soil to be repaired and improved, and the nutrient content and nutrient variation laws of the secondary salinized greenhouse soil to be repaired and improved.

[0017] Furthermore, the preparation method of the soil remediation and improvement agent for secondary salinized greenhouse soil in Step 2 includes:

[0018] (1) Cut the corn straw into corn straw segments of 8 - 12 cm, dry it until the water content is 10 - 20%, soak the corn straw in the straw modification liquid for 24 - 48 h, and place it in a pyrolysis device for pyrolysis to obtain straw biochar; place the branches of 5 cm × 10 cm in a drying oven to dry to obtain branch biochar; mix, crush, grind and sieve the straw biochar and branch biochar to obtain biochar powder;

[0019] (2) Weigh 30 - 50 parts of organic fertilizer, 20 - 30 parts of biochar, 10 - 15 parts of humic acid, 3 - 5 parts of Bacillus licheniformis fermentation broth, 2 - 4 parts of Paenibacillus mucilaginosus fermentation broth, 0.2 - 0.5 parts of activator and the remaining slag by mass;

[0020] (3) Modify the biochar powder with humic acid to obtain modified biochar; mix the Bacillus licheniformis fermentation broth and Paenibacillus mucilaginosus fermentation broth to obtain a microbial inoculant; mix the modified biochar, organic fertilizer, microbial inoculant, activator and slag, and place them in a granulator for granulation to prepare a remediation and improvement agent for secondary salinized soil in protected agriculture.

[0021] Further, the spreading method of the remediation and improvement agent for secondary salinized soil in protected agriculture in step three includes:

[0022] (1) According to the change law of the salt content of the soil to be repaired, spread the remediation and improvement agent for secondary salinized soil in protected agriculture on the secondary salinized soil in protected agriculture to be repaired and improved;

[0023] (2) Rototill the soil on which the remediation and improvement agent for secondary salinized soil in protected agriculture is spread to make the soil remediation and improvement agent fully mixed with the soil to be repaired;

[0024] (3) Thoroughly water the soil rototilled in step (2) to keep the soil moist.

[0025] Further, the plowing and biological treatment method of the secondary salinized soil in protected agriculture in step four includes:

[0026] (1) After sunning for 3 - 5 days, spread organic fertilizer and a loosening agent on the secondary salinized soil in protected agriculture to be repaired and improved, and rototill again;

[0027] (2) Mix the leguminous plant seeds and rhizobia evenly to form mixed plant seeds;

[0028] (3) Sow the mixed plant seeds into the rototilled soil to be repaired and water them. After the mixed plant seeds grow into leguminous plants, return the leguminous plants to the field in full amount.

[0029] Another object of the present invention is to provide a device for repairing and improving secondary salinized soil in protected agriculture, which applies the method for repairing and improving secondary salinized soil in protected agriculture. The device for repairing and improving secondary salinized soil in protected agriculture includes:

[0030] A monitoring data acquisition module, which is used to use a high-definition camera to monitor the secondary salinized soil in protected agriculture to be repaired and improved in real time, and acquire the monitoring data of the secondary salinized soil in protected agriculture to be repaired and improved;

[0031] A salt content change rule determination module, which is used to periodically obtain the soil salt content status in different regions at different times according to the monitoring data, and determine the change rule of the salt content in the soil to be repaired;

[0032] A repair and improvement agent preparation module, which is used to use an organic fertilizer, biochar, humic acid, Bacillus licheniformis fermentation broth, Paenibacillus mucilaginosus fermentation broth, activator and slag through a preparation device, and combine steps such as crushing, mixing, stirring, modification, activation, granulation, drying and cooling to prepare a repair and improvement agent;

[0033] An improvement agent spreading module, which is used to spread the soil repair and improvement agent into the soil to be repaired and improved according to the change rule of the salt content in the soil to be repaired through a fertilization device, and then rototill, water and dry in the sun;

[0034] A biochemical treatment module, which is used to plant leguminous plant seeds and rhizobia by a seeding device after spreading organic fertilizers and loosening agents into the soil to be repaired, and return the whole plants to the field after the plants grow.

[0035] Another object of the present invention is to provide a computer device, which includes a memory and a processor. When a computer program stored in the memory is executed by the processor, the processor executes the method for repairing and improving secondary salinized soil in protected agriculture.

[0036] Another object of the present invention is to provide a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor executes the method for repairing and improving secondary salinized soil in protected agriculture.

[0037] Another object of the present invention is to provide an information data processing terminal, which is used to implement the device for repairing and improving secondary salinized soil in protected agriculture.

[0038] Combined with the above technical solutions and the solved technical problems, please analyze the advantages and positive effects of the technical solution to be protected by the present invention from the following aspects:

[0039] First, in view of the technical problems existing in the above-mentioned prior art and the difficulty of solving such problems, closely combining with the technical solution to be protected by the present invention, as well as the results and data during the R & D process, etc., analyze in detail and profoundly how the technical solution of the present invention solves the technical problems and the creative technical effects brought about after solving the problems. The specific description is as follows:

[0040] In the method for repairing and improving secondary salinized soil in protected agriculture provided by the present invention, the application rate of the soil repair and improvement agent is determined by detecting the pH value of the soil to be repaired and improved, effectively adjusting the pH value of the soil, ensuring the soil fertility and not introducing more salts; by applying organic fertilizers and loosening agents, the looseness of the soil is ensured, the soil compaction is broken, and water permeability and air permeability are promoted.

[0041] Second, regarding the technical solution as a whole or from the perspective of the product, the technical effects and advantages of the technical solution to be protected by the present invention are specifically described as follows:

[0042] The method for repairing and improving secondary salinized soil in protected agriculture provided by the present invention can effectively reduce soil compaction, reduce the content of salts and harmful microorganisms in the soil, with good effects and a short cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. Obviously, the following described drawings are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0044] Figure 1 is a flowchart of the method for repairing and improving secondary salinized soil in protected agriculture provided by the embodiment of the present invention;

[0045] Figure 2 is a flowchart of the method for detecting the pH value of the soil to be repaired and improved provided by the embodiment of the present invention;

[0046] Figure 3 is a structural diagram of the device for repairing and improving secondary salinized soil in protected agriculture provided by the embodiment of the present invention;

[0047] In the figure: 1. Monitoring data acquisition module; 2. Salt change law determination module; 3. Repair and improvement agent preparation module; 4. Improvement agent application module; 5. Biochemical treatment module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] Aiming at the problems existing in the prior art, the present invention provides a method for repairing and improving the secondary salinized soil in protected agriculture. The present invention will be described in detail below with reference to the accompanying drawings.

[0050] I. Explanation of the embodiments. This part is an explanatory embodiment that expands on the technical solution of the claims in order to enable those skilled in the art to fully understand how the present invention is specifically implemented.

[0051] As Figure 1 shown, the method for repairing and improving the secondary salinized soil in protected agriculture provided by the embodiment of the present invention includes the following steps:

[0052] S101, determining the variation law of the salt content in the secondary salinized soil of protected agriculture to be repaired and improved: obtaining the monitoring data of the secondary salinized soil of protected agriculture to be repaired and improved, periodically obtaining the soil salt content status in different regions at different times according to the monitoring data, and determining the variation law of the salt content in the soil to be repaired;

[0053] S102, preparing a repair and improvement agent for the secondary salinized soil of protected agriculture: using organic fertilizer, biochar, humic acid, Bacillus licheniformis and Paenibacillus mucilaginosus fermentation broth, activator, and furnace slag, and preparing the repair and improvement agent through steps such as crushing, modification, activation, granulation, drying, and cooling;

[0054] S103, applying the repair and improvement agent for the secondary salinized soil of protected agriculture: according to the variation law of the salt content in the soil to be repaired, applying the soil repair and improvement agent prepared in S102 to the soil to be repaired and improved, rotary tilling, watering, and sunning;

[0055] S104, plowing and biological treatment of the secondary salinized soil of protected agriculture: after sunning for 3 to 5 days, applying organic fertilizer and loosening agent to the soil to be repaired, and rotary tilling again; sowing leguminous plant seeds and rhizobia and watering with water, and after the plants grow, returning them to the field in full amount.

[0056] As Figure 2 shown, the detection method for the pH value of the secondary salinized soil of protected agriculture to be repaired and improved in step S101 provided by the embodiment of the present invention includes:

[0057] S201, using a high-definition camera to perform real-time monitoring on the secondary salinized soil of protected agriculture to be repaired and improved, and obtaining the monitoring data of the secondary salinized soil of protected agriculture to be repaired and improved;

[0058] S202, Periodically collect soil samples of the secondary salinized soil of the facility agriculture to be repaired and improved, measure the soil salinity, nutrients and salt ion content, and obtain the soil salinity status in different regions at different times;

[0059] S203, According to the soil salinity status in different regions at different times, summarize and sort out the salinity change data from the perspectives of time and space, and obtain the change law of the salinity of the soil to be repaired.

[0060] The change law of the salinity of the soil to be repaired in step S203 provided by the embodiment of the present invention includes the salinity change of the secondary salinized soil of the facility agriculture to be repaired and improved, the change law of the pH value and organic matter of the secondary salinized soil of the facility agriculture to be repaired and improved, and the nutrient content and change law of the nutrients of the secondary salinized soil of the facility agriculture to be repaired and improved.

[0061] The preparation method of the soil remediation and improvement agent for secondary salinization of facility agriculture in step S102 provided by the embodiment of the present invention includes:

[0062] (1) Cut the corn straw into corn straw segments with a length of 8 - 12 cm, dry it until the water content is 10 - 20%, soak the corn straw in the straw modification liquid for 24 - 48 h, and place it in a pyrolysis device for pyrolysis to obtain straw biochar; Place the branches of 5 cm × 10 cm in a drying oven for drying to obtain branch biochar; Mix, crush, grind and sieve the straw biochar and branch biochar to obtain biochar powder;

[0063] (2) Weigh 30 - 50 parts of organic fertilizer, 20 - 30 parts of biochar, 10 - 15 parts of humic acid, 3 - 5 parts of Bacillus licheniformis fermentation broth, 2 - 4 parts of Paenibacillus mucilaginosus fermentation broth, 0.2 - 0.5 parts of activator and the remaining slag by mass;

[0064] (3) Modify the biochar powder with humic acid to obtain modified biochar; Mix the Bacillus licheniformis fermentation broth and Paenibacillus mucilaginosus fermentation broth to obtain a microbial inoculant; Mix the modified biochar, organic fertilizer, microbial inoculant, activator and slag, and place them in a granulator for granulation to prepare a soil remediation and improvement agent for secondary salinization of facility agriculture.

[0065] The spreading method of the soil remediation and improvement agent for secondary salinization of facility agriculture in step S103 provided by the embodiment of the present invention includes:

[0066] (1) According to the change law of the salinity of the soil to be repaired, spread the soil remediation and improvement agent for secondary salinization of facility agriculture on the secondary salinized soil of the facility agriculture to be repaired and improved;

[0067] (2) Rototill the soil to which the facility agriculture secondary salinized soil remediation and improvement agent is broadcast-spread, so that the soil remediation and improvement agent is fully mixed with the soil to be repaired;

[0068] (3) Thoroughly water the soil after rototilling in step (2) to keep the soil moist.

[0069] The tillage and biological treatment method for facility agriculture secondary salinized soil in step S104 provided by the embodiment of the present invention includes:

[0070] (1) After sunning for 3 to 5 days, broadcast-spread organic fertilizers and loosening agents to the facility agriculture secondary salinized soil to be repaired and improved, and rototill again;

[0071] (2) Mix leguminous plant seeds and rhizobia evenly to form mixed plant seeds;

[0072] (3) Sow the mixed plant seeds into the soil to be repaired after rototilling and water them. After the mixed plant seeds grow into leguminous plants, return the leguminous plants to the field in full amount.

[0073] As Figure 3 shown, the device for repairing and improving facility agriculture secondary salinized soil provided by the embodiment of the present invention includes:

[0074] A monitoring data acquisition module 1, which is used to use a high-definition camera to perform real-time monitoring on the facility agriculture secondary salinized soil to be repaired and improved, and acquire the monitoring data of the facility agriculture secondary salinized soil to be repaired and improved;

[0075] A salt content change rule determination module 2, which is used to periodically acquire the soil salt content status of different regions at different times according to the monitoring data, and determine the change rule of the salt content of the soil to be repaired;

[0076] A repair and improvement agent preparation module 3, which is used to prepare a repair and improvement agent through a preparation device using organic fertilizers, biochar, humic acid, Bacillus licheniformis fermentation broth, Paenibacillus mucilaginosus fermentation broth, an activator, and furnace slag, in combination with steps of crushing, mixing, stirring, modification, activation, granulation, drying, and cooling;

[0077] An improvement agent broadcast-spreading module 4, which is used to broadcast-spread the soil repair and improvement agent to the soil to be repaired and improved according to the change rule of the salt content of the soil to be repaired through a fertilization device, and perform rototilling, watering, and sunning;

[0078] A biological treatment module 5, which is used to plant leguminous plant seeds and rhizobia using a sowing device after broadcast-spreading organic fertilizers and loosening agents to the soil to be repaired, and return the plants to the field in full amount after they grow.

[0079] II. Application Examples. To prove the creativity and technical value of the technical solution of the present invention, this part provides application examples of applying the technical solution of the claims to specific products or related technologies.

[0080] The application example of the present invention provides a computer device, which includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor is caused to execute the method for repairing and improving the secondary salinized soil in protected agriculture.

[0081] The application example of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor is caused to execute the method for repairing and improving the secondary salinized soil in protected agriculture.

[0082] The application example of the present invention provides an information data processing terminal for implementing the device for repairing and improving the secondary salinized soil in protected agriculture.

[0083] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in whole or in part in the form of a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more integrated available media. The available medium may be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid-state disk (SSD)).

[0084] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention by those skilled in the art within the technical scope disclosed by the present invention shall be covered by the protection scope of the present invention.

Claims

1. A method for repairing and improving secondary salinized soil in facility agriculture, characterized in that: The method for repairing and improving secondary salinized soil in facility agriculture comprises the following steps: Step 1: Determine the changing pattern of salinity in the agricultural secondary salinization soil to be restored and improved: obtain the monitoring data of the agricultural secondary salinization soil to be restored and improved, periodically obtain the soil salinity status in different areas at different times based on the monitoring data, and determine the changing pattern of salinity in the soil to be restored; Step 2, preparing a repair and improvement agent for secondary salinized soil in facility agriculture: using organic fertilizer, biochar, humic acid, fermentation liquid of Bacillus licheniformis and Paenibacillus jelly, activator and slag, and preparing the repair and improvement agent through crushing, modification, activation, granulation, drying and cooling steps; Step 3, spreading the soil remediation and improvement agent for secondary salinization in facility agriculture: according to the change law of the salt content of the soil to be repaired, spreading the soil remediation and improvement agent prepared in step 2 into the soil to be repaired and improved, rotary tilling, watering, and drying; Step 4: Tillage and biological treatment of secondary salinized soil in facility agriculture: After drying for 3 to 5 days, organic fertilizer and loosening agent are spread on the soil to be repaired, and the soil is tilled again; legume seeds and rhizobia are planted and irrigated with water, and the entire amount is returned to the field after the plants grow up.

2. The method for repairing and improving secondary salinized soil in facility agriculture according to claim 1, characterized in that: The method for detecting the pH value of the secondary salinized soil in the agricultural facility to be repaired and improved in step 1 comprises: (1) Use high-definition cameras to conduct real-time monitoring of the salinized soil in agricultural facilities to be restored and improved, and obtain monitoring data of the salinized soil in agricultural facilities to be restored and improved; (2) Periodically collect soil samples of secondary salinization in agricultural facilities to be repaired and improved and measure the content of soil salt, nutrients and salt ions to obtain the soil salt content in different areas at different times; (3) According to the soil salt content in different regions at different times, the salt change data are summarized and sorted out from the perspective of time and space to obtain the change pattern of soil salt to be restored.

3. The method for repairing and improving secondary salinized soil in facility agriculture according to claim 2, characterized in that: The change law of the salt content of the soil to be repaired in the step (3) includes the change of the salt content of the agricultural secondary salinization soil to be repaired and improved, the change law of the pH value and organic matter of the agricultural secondary salinization soil to be repaired and improved, and the nutrient content and nutrient change law of the agricultural secondary salinization soil to be repaired and improved.

4. The method for repairing and improving secondary salinized soil in facility agriculture according to claim 1, characterized in that: The preparation method of the facility agriculture secondary salinization soil remediation and improvement agent in step 2 comprises: (1) Cut corn stalks into 8-12 cm corn stalk segments, dry them in the sun until the moisture content is 10-20%, soak the corn stalks in a stalk modification liquid for 24-48 hours, and place them in a pyrolysis device for pyrolysis to obtain stalk biochar; place 5 cm×10 cm branches in a drying box for drying to obtain branch biochar; mix the straw biochar and the branch biochar, grind them, and then sieve them to obtain biochar powder; (2) Weighing 30-50 parts of organic fertilizer, 20-30 parts of biochar, 10-15 parts of humic acid, 3-5 parts of Bacillus licheniformis fermentation liquid, 2-4 parts of Paenibacillus jelly fermentation liquid, 0.2-0.5 parts of activator and the balance of slag respectively according to the mass ratio; (3) The biochar powder is modified by using humic acid to obtain modified biochar; the fermentation liquid of Bacillus licheniformis and the fermentation liquid of Bacillus jelly are mixed to obtain a microbial agent; the modified biochar, organic fertilizer, microbial agent, activator and slag are mixed and granulated in a granulator to prepare a secondary salinization soil remediation and improvement agent for facility agriculture.

5. The method for repairing and improving secondary salinized soil in facility agriculture according to claim 1, characterized in that: The method for spreading the facility agriculture secondary salinization soil remediation and improvement agent in step 3 includes: (1) according to the change law of soil salinity to be repaired, spreading the facility agriculture secondary salinization soil repair and improvement agent to the facility agriculture secondary salinization soil to be repaired and improved; (2) rotary tilling the soil on which the facility agriculture secondary salinization soil remediation and improvement agent is applied, so that the soil remediation and improvement agent is fully mixed with the soil to be remediated; (3) The soil after rotary tillage in step (2) is thoroughly watered to keep the soil moist.

6. The method for repairing and improving secondary salinized soil in facility agriculture according to claim 1, characterized in that: The method for tilling and biological treatment of secondary salinized soil in facility agriculture in step 4 includes: (1) After drying for 3 to 5 days, organic fertilizer and loosening agent are applied to the agricultural secondary salinized soil to be repaired and improved, and rotary tillage is performed again; (2) mixing legume seeds and rhizobia evenly to form mixed plant seeds; (3) sowing the mixed plant seeds into the soil to be repaired after rotary tillage and watering it, and after the mixed plant seeds grow into legumes, returning all the legumes to the field.

7. A device for remediating and improving secondary salinized soil in facility agriculture using the method for remediating and improving secondary salinized soil in facility agriculture as described in any one of claims 1 to 6, characterized in that: The device for repairing and improving secondary salinized soil in facility agriculture comprises: A monitoring data acquisition module is used to use a high-definition camera to conduct real-time monitoring of the agricultural secondary salinization soil to be restored and improved, and obtain monitoring data of the agricultural secondary salinization soil to be restored and improved; The module for determining the law of salt change is used to periodically obtain the soil salt content in different areas at different times based on the monitoring data, and determine the law of salt change in the soil to be repaired; The repair and improvement agent preparation module is used to prepare the repair and improvement agent by using an organic fertilizer, biochar, humic acid, Bacillus licheniformis fermentation liquid, Bacillus jelly fermentation liquid, activator and slag through a preparation device, combined with crushing, mixing, modification, activation, granulation, drying and cooling steps; The improver spreading module is used to spread the soil repair improver into the soil to be repaired and improved through a fertilizing device according to the change law of the salinity of the soil to be repaired, and then to perform rotary tillage, watering and drying; The biological treatment module is used to spread organic fertilizers and loosening agents into the soil to be repaired, and then use a sowing device to plant leguminous plant seeds and rhizobia, and return all the seeds to the field after the plants grow up.

8. A computer device, characterized in that: The computer device includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method for remediation and improvement of secondary salinized soil in facility agriculture as described in any one of claims 1 to 7.

9. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the method for remediation and improvement of secondary salinized soil in facility agriculture as described in any one of claims 1 to 7.

10. An information data processing terminal, characterized in that: The information data processing terminal is used to implement the device for repairing and improving secondary salinized soil in facility agriculture as described in claim 7.

Images