Method and equipment for improving planting soil in greening engineering

Abstract

The invention discloses a method and equipment for improving planting soil in greening engineering, the equipment comprises a ploughing system, a soil sterilization mechanism and a soil fertility increasing mechanism, the soil sterilization mechanism is arranged on the front side of the top of the ploughing system, and the soil fertility increasing mechanism is arranged on the rear side of the top of the ploughing system; the ploughing system comprises two steel cross beams and two rows of ploughing cutter sets fixedly connected to the side walls of the steel cross beams respectively. The three functions of plowing, sterilizing and fertilizing are integrated, continuous operation is achieved through traction of a tractor, the processes of soil crushing, sterilizing and fertilizing can be completed through single operation, the soil sterilizing mechanism sprays a sterilizing agent to cover the plowing soil, pathogenic bacteria on the surface layer and the shallow layer of the soil are killed, and the incidence rate of crop diseases is reduced; the soil fertility increasing mechanism can realize mixed quantitative spreading of organic fertilizer and compound fertilizer, so that the utilization rate of the fertilizer is improved, and the problems of waste and non-uniformity of traditional fertilization are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of soil improvement equipment, and in particular to a method and equipment for improving planting soil in greening projects. Background Art

[0002] In greening projects, soil improvement is a critical step in ensuring healthy plant growth and improving the quality of green spaces. However, current soil improvement practices suffer from numerous shortcomings. Traditional greening projects typically rely solely on tilling the soil, but this lacks adequate soil sterilization, allowing residual pathogens and harmful microorganisms to pose a threat to plant growth. Traditional sterilization methods are often inefficient and struggle to cover the entire area. Furthermore, soil enrichment processes present numerous challenges.

[0003] Many urban greening projects often involve a variety of plant species. These diverse plants are characterized by soil, a necessary material condition for plant growth. Different plants require different soil conditions to grow. During construction, creating a favorable growth environment for garden plants through soil improvement is an important step in improving construction quality and a key process in increasing the survival rate of seedlings.

[0004] The above-mentioned traditional fertilization method is often difficult to carry out fertilization operations while plowing. Therefore, those skilled in the art hereby propose a method and equipment for improving planting soil in greening projects to solve the above problems. Summary of the Invention

[0005] In view of the defects of the above background technology, a planting soil improvement device for greening projects is provided.

[0006] In order to achieve the above-mentioned object of the invention, the technical solution provided by the present invention is as follows:

[0007] The present invention first provides a planting soil improvement device for greening projects, which comprises a tillage system, a soil sterilization mechanism and a soil fertilization mechanism. The soil sterilization mechanism is provided on the top front side of the tillage system, and the soil fertilization mechanism is provided on the top rear side of the tillage system.

[0008] The tillage system includes two steel beams, two rows of tillage blade groups fixedly connected to the side walls of the steel beams, and 2-5 longitudinal beams fixedly connected between the steel beams, and the top surface of the front longitudinal beam is fixed with a pulling end connected to the tractor;

[0009] The tillage blade groups each include a steel curved rod, a bearing fixedly connected to the bottom end of the steel curved rod, and a rotating shaft rotatably arranged inside the bearing, and the front end of the rotating shaft is fixedly connected to a disc tillage harrow;

[0010] The soil sterilization mechanism includes a water tank, a water pump fixedly connected to the front side wall of the water tank, and a water supply pipe connected to the water outlet port of the water pump through a joint, and 3-6 branch pipes are connected to the two sides of the water supply pipe. The bottom of each branch pipe is connected to a plurality of nozzles spraying downwards;

[0011] The soil fertilization mechanism includes a fertilizer hopper, a stirring paddle rotatably arranged in the inner cavity of the fertilizer hopper, and a bottom plate fixedly connected to the lower end surface of the fertilizer hopper, and the bottom of the bottom plate is connected to two bottom cabins that are connected to the inner cavity space of the fertilizer hopper, a material transport auger is rotatably arranged in the inner cavity of the bottom cabin, and a discharge pipe is connected to the bottom surface of the bottom cabin.

[0012] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: the left and right end ends of the longitudinal beam are respectively fixedly connected to the surface of one side of the steel cross beam that is close to each other, and a plurality of equally spaced screws are passed through the side wall of the steel cross beam for locking and connecting the steel bent rods.

[0013] In the above-mentioned technical solution of the planting soil improvement equipment in greening projects, preferably: the outer ring side walls of the bearing are fixedly connected with protrusions, and the bottom end of the steel bent rod is fixedly connected to the protrusions by bolts.

[0014] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: the bottom surface of the water tank is fixedly connected to two support frames, and the bottom end faces of the support frames are fixedly connected to the top surface of the front longitudinal beam.

[0015] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: the front side of the top surface of the water tank is hinged with a box cover by a hinge, two locks are provided between the box cover and the rear side of the water tank, and a bacteriostatic solvent is placed in the inner cavity of the water tank.

[0016] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: the liquid extraction port of the water pump is connected to a water extraction pipe that penetrates into the inner cavity of the water tank through a joint, and a through hole for the water extraction pipe to penetrate is provided on the front side wall of the water tank, and a sealing ring is provided between the inside of the through hole and the outer surface of the water extraction pipe.

[0017] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: pipe clamps are provided on the outer ring surface of the water supply pipe and the outer ring surface of the branch pipe, and the top surface of the pipe clamp is fixed to the bottom end face of the water tank.

[0018] In the above-mentioned technical solution of the soil improvement equipment for planting in greening projects, preferably: four support seats are fixedly connected to the bottom surface of the base plate, the bottom ends of the support seats are connected to support beams, and the bottom surface of the support beams is fixedly connected to the top surface of the longitudinal beams on the rear side; wherein, shaft seats for rotating the material transport auger are provided on the left and right side walls of the bottom cabin, and a bottom motor is fixedly connected to the left side wall of the bottom cabin, and the output shaft of the bottom motor is fixedly connected to the left end of the material transport auger through a coupling.

[0019] In the above-mentioned technical solution of the planting soil improvement equipment in the greening project, preferably: a partition is fixedly connected to the inner cavity of the fertilizer hopper, which is used to divide the internal space of the fertilizer hopper into two parts, left and right, so as to place different fertilizers respectively, and an upper motor is fixedly connected to the left side wall of the fertilizer hopper, and the output shaft of the upper motor is fixedly connected to the left end of the stirring paddle through a coupling.

[0020] The present invention also provides a method for improving planting soil in greening projects, which specifically includes the following process:

[0021] S1: The tillage system is connected to the tractor through the tractor's pulling end. The longitudinal beam transmits power to propel the entire machine forward. In the tillage blade group supported by the steel crossbeam, the steel curved rod is fixed to the side wall of the crossbeam by screws. The outer ring of the bearing is bolted to the bottom end of the curved rod. The disc harrow at the front end of the rotating shaft rotates as the machine moves forward, using shear force to break up the soil and till the soil to the set depth, achieving mixing of the surface soil and the deep soil.

[0022] S2: The water tank of the soil sterilization mechanism is fixed to the top of the front longitudinal beam via a support frame. The tank cover is sealed with a lock and filled with the sterilization agent. A water pump draws the liquid from the tank through a suction pipe, pressurizes it, and delivers it to the branch pipe through a water supply pipe. Finally, the nozzle sprays it downward, forming a fan-shaped spray that covers the working area, and the liquid penetrates and kills soil pathogens.

[0023] S3: The fertilizer hopper of the soil fertilization mechanism is fixed to the top of the rear longitudinal beam through a support beam. The partition divides the space inside the hopper into two parts, each containing different fertilizers. The upper motor drives the stirring paddle to rotate to mix the fertilizers evenly. The mixed fertilizers fall into the bottom compartment under the bottom plate. The bottom motor drives the material transport auger to rotate, transporting the fertilizer axially to the outlet of the discharge pipe and evenly spreading it on the surface of the plowed soil.

[0024] As can be seen from the above technical solutions, the present invention provides a method and device for improving planting soil in greening projects. Compared with the prior art, the present invention has the following beneficial effects:

[0025] The equipment for improving planting soil in greening projects of the present invention integrates three functions of plowing, sterilization and fertilization. It realizes continuous operation through tractor traction, and the soil crushing, disinfection and fertilization processes can be completed in a single operation. The nozzle in the soil sterilization mechanism sprays sterilization agents to cover the plowed soil, kill pathogens in the surface and shallow layers of the soil, and reduce the incidence of crop diseases; in the soil fertilization mechanism, the stirring paddle cooperates with the material transport auger to realize the mixed quantitative spreading of organic fertilizer and compound fertilizer, improve the utilization rate of fertilizer, and avoid the waste and unevenness of traditional fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a planting soil improvement device in a greening project according to the present invention;

[0027] Figure 2 A schematic diagram of a tillage system in a soil improvement device for greening projects;

[0028] Figure 3 A schematic diagram of a tillage blade assembly for a soil improvement device for greening projects;

[0029] Figure 4 A schematic diagram of a soil sterilization mechanism in a planting soil improvement device for a greening project;

[0030] Figure 5 A schematic diagram of a spraying assembly below a soil sterilization mechanism in a soil improvement device for planting in a greening project is disclosed;

[0031] Figure 6 The present invention is a schematic diagram of a soil fertilization mechanism in a planting soil improvement device for greening projects.

[0032] Attachment Figure 1 -Attached Figure 6 The corresponding relationship between the components is as follows:

[0033] 1. Tillage system; 11. Steel crossbeam; 13. Longitudinal beam; 14. Pulling end;

[0034] 12. Tilling blade assembly; 121. Steel curved rod; 122. Bearing; 123. Rotating shaft; 124. Disc harrow;

[0035] 2. Soil sterilization mechanism; 21. Water tank; 22. Lock; 23. Tank cover; 24. Water pump; 25. Water supply pipe; 26. Support frame; 27. Nozzle; 28. Branch pipe; 29. Water extraction pipe;

[0036] 3. Soil fertilization mechanism; 31. Fertilizer hopper; 32. Partition; 33. Agitator; 34. Material transport auger; 35. Bottom plate; 36. Support beam; 37. Support seat; 38. Feeding pipe; 39. Bottom cabin; 310. Bottom motor; 311. Upper motor. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below 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 making creative efforts are within the scope of protection of the present invention.

[0038] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0039] Example 1,

[0040] This embodiment is a special device for improving planting soil in greening projects. The entire device is pulled by a tractor to perform soil improvement operations.

[0041] The above-mentioned planting soil improvement equipment is composed of a tillage system 1, a soil sterilization mechanism 2 and a soil fertilization mechanism 3. Among them, the two steel crossbeams 11 of the tillage system 1 are made of alloy steel, with a length of 3 meters and a spacing of 1.5 meters. They are fixedly connected to the left and right ends of the longitudinal beam 13 by welding. There are 3 longitudinal beams 13 in total, which adopt a rectangular steel pipe structure. A pulling end 14 is welded on the top of the front longitudinal beam 13 and is connected to the rear suspension device of the tractor through a pin shaft. The steel bent rod 121 of the tillage knife group 12 is locked with the through hole on the side wall of the steel crossbeam 11 by a screw. Each row of the tillage knife group 12 contains 10 groups, and the spacing between adjacent groups is 30 cm. The protrusion on the side wall of the outer ring of the bearing 122 is fixed to the bottom end of the steel bent rod 121 by bolts. The disc tillage harrow 124 welded at the front end of the rotating shaft 123 has a diameter of 40 cm and is made of wear-resistant high manganese steel. During operation, the tractor pulls the equipment forward, and the disc harrow 124 rotates to break up the soil and plow it to a depth of 25 cm.

[0042] The water tank 21 of the soil sterilization mechanism 2 is made of polyethylene plastic and has a capacity of 500 liters. A lid 23 is hinged on the top front, and two latches 22 are installed on the rear. A commercially available chlorpyrifos solution is placed in the inner cavity of the water tank 21 and extracted by a water pump 24. The water pump 24 has a power of 3 kilowatts, and the liquid extraction port is connected to a water pump 29 via a joint. The water pump 29 runs through a through-hole on the front side of the water tank 21 and is equipped with a rubber sealing ring. The water supply pipe 25 is made of PVC and is 2 meters long. It is split on both sides and connected to four branch pipes 28, each 1.2 meters long. Six nozzles 27 are installed at the end, tilted downward at 45 degrees. During operation, the water pump 24 pressurizes the chlorpyrifos solution to 0.3 MPa, which is then sprayed through the nozzles 27 in a fan-shaped spray pattern, covering a width of up to 4 meters, effectively killing pathogens on the soil surface.

[0043] The fertilizer hopper 31 of the soil fertilization mechanism 3 is made of stainless steel and has a capacity of 300 liters. The inner cavity is divided into two parts, left and right, by a partition 32, which respectively contain organic fertilizer and compound fertilizer. The stirring paddle 33 adopts a double helix structure and is driven by the upper motor 311 at a speed of 60 rpm, so that the fertilizer is evenly mixed. Four support seats 37 are welded to the bottom of the base plate 35 and fixed to the top of the rear longitudinal beam 13 through a support beam 36. Two material transport screws 34 are set in the bottom cabin 39, which are independently driven by the bottom motor 310 at a speed of 120 rpm to transport fertilizer to the discharge pipe 38. The discharge pipe 38 adopts a retractable structure, and the outlet height can be adjusted within the range of 10-30 cm. During operation, the fertilizer is evenly spread on the surface of the soil after plowing through the discharge pipe 38, and the spreading width matches the plowing width.

[0044] When performing soil improvement operations in complex terrain, it is necessary to adjust the number of longitudinal beams 13 to optimize the structural strength. When there are many stones in the working area, the number of longitudinal beams 13 is increased to 5, and the spacing is shortened to 30 cm to enhance the overall impact resistance. The disc tillage harrow 124 of the tilling knife group 12 can be replaced with a detachable blade, and the worn parts can be quickly replaced by bolts. The number of branch pipes 28 of the soil sterilization mechanism 2 is increased to 6, and the spacing between the nozzles 27 is reduced to 15 cm to improve the uniformity of the spray. The partition 32 of the fertilizer hopper 31 is detachable to facilitate the cleaning of different fertilizer residues. The material transport auger 34 adopts a modular design, and the length of a single auger can be adjusted according to the size of the bottom cabin 39 to adapt to fertilizer hoppers 31 of different specifications.

[0045] In addition, the equipment integrates an intelligent control system. A liquid level sensor is installed in the water tank 21, which automatically alarms when the liquid level falls below 20%. The water pump 24 is linked to the tractor's power system, and a speed sensor controls the spray pressure. A weight sensor is installed in the fertilizer hopper 31 to monitor the remaining fertilizer in real time. When the remaining amount falls below 10%, an audible and visual alarm is triggered. The motors of the agitator 33 and the auger 34 are equipped with overload protection devices to prevent damage to the equipment due to obstruction by foreign objects. The disc harrow 124 of the tillage system 1 adopts a floating design and is connected to the rotating shaft 123 via a spring. When encountering hard objects, it automatically rises to avoid them, protecting the cutting tools and maintaining operational continuity.

[0046] Example 2

[0047] This embodiment is an operation process of improving the planting soil in a greening project by tractor pulling to improve the soil, and is also a method for improving the planting soil in a greening project. The following is an explanation of the workflow of this technical solution:

[0048] During operation, the tillage system 1 is pulled by a tractor, and the pulling end 14 of the tillage system 1 is connected to the tractor. The longitudinal beam 13 transmits power to make the equipment move forward as a whole. In the tillage knife group 12 supported by the steel crossbeam 11, the steel bent rod 121 is fixed to the side wall of the crossbeam by a screw, and the outer ring protrusion of the bearing 122 is bolted to the bottom end of the bent rod. The disc tillage harrow 124 at the front end of the rotating shaft 123 rotates as the equipment moves forward, using shear force to break the soil and till it to the set depth to achieve mixing of the surface soil and deep soil.

[0049] The water tank 21 of the soil sterilization mechanism 2 in the improved equipment is fixed to the top of the front longitudinal beam 13 through the support frame 26. The tank cover 23 and the lock buckle 22 are sealed to contain the sterilization spirit solvent. The water pump 24 draws the liquid medicine from the water tank through the suction pipe 29, and after pressurization, it is transported to the branch pipe 28 through the water supply pipe 25, and finally sprayed downward by the nozzle 27 to form a fan-shaped spray covering the working area, and the soil pathogens are killed by the penetration of the liquid medicine.

[0050] The fertilizer hopper 31 of the soil fertilization mechanism 3 in the improvement equipment is fixed to the top of the rear longitudinal beam 13 via a support beam 36. The partition 32 divides the space inside the hopper into two parts, each containing different fertilizers. The upper motor 311 drives the stirring paddle 33 to rotate, mixing the fertilizers evenly. The mixed fertilizers fall into the bottom compartment 39 below the bottom plate 35. The bottom motor 310 drives the material transport auger 34 to rotate, transporting the fertilizer axially to the outlet of the discharge pipe 38, and evenly spreading it on the surface of the plowed soil. The output sections of the upper motor 311 and the bottom motor 310 are both equipped with gearboxes, and the final power is output from the output shaft of the gearbox.

[0051] The electrical equipment of the entire device is powered by a battery. The battery is installed in the car body of the tractor, and a control box is installed in the control room of the tractor. The control box is used to control the entire device, and the control box is connected to the battery and the electrical equipment on the device through wires.

[0052] The dedicated improvement equipment and improved operating method of the present invention can improve and optimize the soil at the site of the greening project. This not only loosens the soil, but also sterilizes it, and increases soil fertility through the application of various fertilizers. Furthermore, the entire operation is powered by a tractor, allowing the entire process to be completed in one go, saving manpower and time and improving construction efficiency. Furthermore, the fertilizer ratio and composition can be adjusted to suit different landscaping areas and the different plants planted, thereby achieving more targeted soil improvement and fertility enhancement.

[0053] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the guidance of the present invention, and any technical solutions that are the same or similar to those of the present invention, fall within the scope of protection of the present invention. Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A soil improvement device for planting in greening projects, characterized by: The invention comprises a tillage system (1), a soil sterilization mechanism (2) and a soil fertilization mechanism (3), wherein the soil sterilization mechanism (2) is arranged on the front side of the top of the tillage system (1), and the soil fertilization mechanism (3) is arranged on the rear side of the top of the tillage system (1); The tillage system (1) comprises two steel beams (11), two rows of tillage blade groups (12) respectively fixedly connected to the side walls of the steel beams (11), and 2-5 longitudinal beams (13) fixedly connected between the steel beams (11), and a pulling end (14) connected to a tractor is fixed on the top surface of the front longitudinal beam (13); The tillage blade group (12) includes a steel curved rod (121), a bearing (122) fixedly connected to the bottom end of the steel curved rod (121), and a rotating shaft (123) rotatably arranged inside the bearing (122), and the front end of the rotating shaft (123) is fixedly connected to a disc tillage harrow (124); The soil sterilization mechanism (2) comprises a water tank (21), a water pump (24) fixedly connected to the front side wall of the water tank (21), and a water supply pipe (25) connected to the water outlet port of the water pump (24) through a joint, and 3-6 branch pipes (28) are connected to the two sides of the water supply pipe (25) through a fork, and the bottom of each branch pipe (28) is connected to a plurality of nozzles (27) for spraying downwards; The soil fertilizing mechanism (3) includes a fertilizer hopper (31), a stirring paddle (33) rotatably arranged in the inner cavity of the fertilizer hopper (31), and a bottom plate (35) fixedly connected to the lower end surface of the fertilizer hopper (31), and the bottom of the bottom plate (35) is connected to two bottom tanks (39) that are connected to the inner cavity space of the fertilizer hopper (31), a material transport auger (34) is rotatably arranged in the inner cavity of the bottom tank (39), and a discharge pipe (38) is connected to the bottom surface of the bottom tank (39).

2. The planting soil improvement device for greening projects according to claim 1, characterized in that: The left and right end ends of the longitudinal beam (13) are respectively fixedly connected to the surface of the steel cross beam (11) on one side close to each other, and a plurality of screws arranged at equal distances pass through the side wall of the steel cross beam (11) for locking and connecting the steel bent rod (121).

3. The planting soil improvement device for greening projects according to claim 1, characterized in that: The outer ring side walls of the bearing (122) are fixedly connected with bulges, and the bottom end of the steel bent rod (121) is fixedly connected to the bulges via bolts.

4. The planting soil improvement device for greening projects according to claim 1, characterized in that: The bottom surface of the water tank (21) is fixedly connected to two support frames (26), and the bottom end surfaces of the support frames (26) are fixedly connected to the top surface of the front longitudinal beam (13).

5. The planting soil improvement device in greening projects according to claim 1, characterized in that: The front side of the top surface of the water tank (21) is hingedly connected to a box cover (23) via a hinge, two locks (22) are provided between the box cover (23) and the rear side of the water tank (21), and a bacteriostatic agent is placed in the inner cavity of the water tank (21).

6. The planting soil improvement device in greening projects according to claim 1, characterized in that: The liquid extraction port of the water pump (24) is connected to a water extraction pipe (29) penetrating into the inner cavity of the water tank (21) via a joint. A through hole for the water extraction pipe (29) to penetrate is provided on the front side wall of the water tank (21), and a sealing ring is provided between the interior of the through hole and the outer surface of the water extraction pipe (29).

7. The planting soil improvement device in greening projects according to claim 1, characterized in that: The outer surface of the water supply pipe (25) and the outer surface of the branch pipe (28) are both provided with a pipe clamp, and the top surface of the pipe clamp is fixed to the bottom end surface of the water tank (21).

8. The planting soil improvement equipment in greening projects according to claim 1, characterized in that: The bottom surface of the bottom plate (35) is fixedly connected to four support seats (37), the bottom ends of the support seats (37) are connected to support beams (36), and the bottom surface of the support beams (36) is fixedly connected to the top surface of the rear longitudinal beam (13); wherein, shaft seats for rotating the material transport auger (34) are provided on the left and right side walls of the bottom cabin (39), and a bottom motor (310) is fixedly connected to the left side wall of the bottom cabin (39), and the output shaft of the bottom motor (310) is fixedly connected to the left end of the material transport auger (34) through a coupling.

9. The planting soil improvement device in greening projects according to claim 1, characterized in that: A partition (32) is fixedly connected to the inner cavity of the fertilizer hopper (31) for dividing the inner space of the fertilizer hopper (31) into two parts, left and right, so as to respectively place different fertilizers. An upper motor (311) is fixedly connected to the left side wall of the fertilizer hopper (31), and the output shaft of the upper motor (311) is fixedly connected to the left end of the stirring paddle (33) through a coupling.

10. A method for improving planting soil in greening projects, characterized by: The planting soil improvement equipment in a greening project applicable to any one of claims 1 to 9 specifically includes the following process: S1: Through tractor pulling operation, the pulling end (14) of the tillage system (1) is connected to the tractor, and the longitudinal beam (13) transmits power to make the equipment move forward as a whole. In the tillage knife group (12) supported by the steel crossbeam (11), the steel bent rod (121) is fixed to the side wall of the crossbeam by a screw, the outer ring protrusion of the bearing (122) is bolted to the bottom end of the bent rod, and the disc tillage harrow (124) at the front end of the rotating shaft (123) rotates as the equipment moves forward, using shear force to break the soil and till the soil to a set depth, thereby achieving mixing of the surface soil and the deep soil; S2: The water tank (21) of the soil sterilization mechanism (2) is fixed to the top of the front longitudinal beam (13) through a support frame (26). The tank cover (23) and the lock buckle (22) are sealed to contain the sterilization solution. The water pump (24) extracts the liquid from the water tank through the water pump pipe (29), and after pressurization, it is transported to the branch pipe (28) through the water supply pipe (25). Finally, it is sprayed downward by the nozzle (27), forming a fan-shaped spray covering the working area, and the soil pathogens are killed by the penetration of the liquid. S3: The fertilizer hopper (31) of the soil fertilization mechanism (3) is fixed to the top of the rear longitudinal beam (13) through a support beam (36). The partition (32) divides the space inside the hopper into two parts, each containing different fertilizers. The upper motor (311) drives the stirring paddle (33) to rotate to mix the fertilizers evenly. The mixed fertilizers fall into the bottom cabin (39) below the bottom plate (35). The bottom motor (310) drives the material transport auger (34) to rotate, transporting the fertilizers axially to the outlet of the discharge pipe (38) and evenly spreading them on the surface of the soil after plowing.

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