A soil-turning and fertilizing device for tea cultivation

Abstract

This invention relates to the field of tea cultivation technology, and more particularly to a soil-turning and fertilizing device for tea cultivation. It includes: a ditching device and a fertilizer supply device; the ditching device includes a shovel plate and a track plate; the track plate has a track groove; the track plate clamps the shovel plate; the shovel plate is vertically oriented; the shovel plate has track protrusions; the track protrusions extend into the track grooves, allowing the shovel plate to move along the track grooves to open the ditch; the fertilizer supply device is located on one side of the shovel plate; the fertilizer supply device includes a receiving cavity; the receiving cavity is used to receive fertilizer bags; the receiving cavity has a discharge port; the discharge direction of the discharge port faces the ditch. In the prior art, due to the special fertilization requirements and planting environment of tea trees, existing ditching devices are not suitable. Compared with the prior art, this invention can fully meet the ditching requirements during fertilization, and simultaneously, fertilization can be carried out during the ditching process, with soil covering completed after fertilization. This effectively saves manpower and significantly improves fertilization efficiency.

Description

Technical Field

[0001] This invention relates to the field of tea cultivation technology, and in particular to a soil-turning and fertilizing device for tea cultivation. Background Technology

[0002] Tea is a beverage made from the tender leaves and buds of the tea plant, and it has effects such as refreshing the mind and aiding digestion. Common tea plants are shrub-type and thrive in acidic soil with a pH of 4.5-6.5, requiring ample diffused light and good drainage. When planting, the soil needs to be deeply tilled, sufficient base fertilizer applied, and tea seedlings transplanted with a row spacing of approximately 1.5 meters and a plant spacing of approximately 0.3 meters. Harvesting can begin 2-3 years after planting.

[0003] Once the tea trees have matured, fertilization is necessary to maintain tea quality. The fertilization process involves digging a trench 15-30cm deep near the roots, and then filling it with the appropriate amount of fertilizer. This process allows the tea tree roots to quickly absorb the fertilizer. Furthermore, the trenching process moderately disrupts the root system, encouraging the rapid growth of fine root hairs to support the tea tree's growth. However, in practice, because tea trees are often planted on hillsides and are relatively short, their fertilization needs are quite specific, making existing trenching equipment inadequate. Manual trenching and fertilization is also labor-intensive and demanding. Summary of the Invention

[0004] In view of the technical problems of the prior art, the present invention provides a soil turning and fertilizing device for tea planting.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A soil-turning and fertilizing device for tea cultivation includes: a ditching device and a fertilizer supply device; the ditching device includes a shovel plate and a track plate; the track plate has a track groove; the track plate clamps the shovel plate; the shovel plate is arranged vertically; the shovel plate has a track protrusion; the track protrusion extends into the track groove so that the shovel plate moves along the track groove to open the ditch; the fertilizer supply device is arranged on one side of the shovel plate; the fertilizer supply device includes a receiving cavity; the receiving cavity is used to receive fertilizer bags; the receiving cavity has a discharge port; the discharge direction of the discharge port is towards the ditch.

[0007] Furthermore, the trenching device also includes a connecting rod; the connecting rod is disposed between the track plates; one end of the connecting rod is fixedly connected to the shovel plate; the track protrusions include positioning protrusions and actuating protrusions; the positioning protrusions and actuating protrusions extend into the track groove; the positioning protrusions and actuating protrusions are fixedly connected to the connecting rod; the positioning protrusions and actuating protrusions are arranged sequentially from top to bottom along the connecting rod.

[0008] Furthermore, the trajectory groove includes a limiting groove, a root-breaking groove, and a digging groove; the limiting groove and the root-breaking groove are arranged sequentially from top to bottom in the vertical direction; the limiting groove and the root-breaking groove are connected; there is a gap between the digging groove and the root-breaking groove; the digging groove and the root-breaking groove are connected; a positioning protrusion extends into the limiting groove; an actuating protrusion extends into the root-breaking groove; when the positioning protrusion moves in the vertical direction, the actuating protrusion can reciprocate along the root-breaking groove and the digging groove.

[0009] Furthermore, the trajectory groove also includes a connecting groove; the connecting groove is symmetrically arranged about the root-breaking groove; one end of the connecting groove is connected to the root-breaking groove, and the other end is connected to the excavation groove, so as to form a closed trapezoid with the root-breaking groove and the excavation groove.

[0010] Furthermore, the fertilizer supply device also includes a limiting structure; the limiting structure includes a baffle plate and a transmission structure; the baffle plate corresponds to the discharge port; the transmission structure is connected to the baffle plate to drive the baffle plate to move relative to the discharge port.

[0011] Furthermore, the transmission structure includes a transmission gear, a transmission rack, a return spring, transmission teeth on the transmission gear, transmission teeth arranged circumferentially on the transmission gear, the transmission gear meshing with the transmission rack through the transmission teeth, the transmission rack connected to the baffle plate, and one end of the return spring connected to the baffle plate and the other end connected to the receiving hopper.

[0012] Furthermore, the transmission structure also includes a sliding rod; the sliding rod is slidably embedded in the transmission rack; the sliding rod is connected to the baffle plate.

[0013] Furthermore, the fertilizer supply device also includes a baffle plate; the baffle plate is connected to the receiving hopper; the movement paths of the baffle plate and the shovel plate correspond; an angle is provided between the shovel plate and the baffle plate; the shovel plate is inclined toward the baffle plate.

[0014] Furthermore, it also includes a power unit; the power unit includes a power motor, a transmission disc, a transmission rod, and a drive gear; the transmission disc is connected to the output end of the power motor; the transmission rod is eccentrically positioned with respect to the transmission disc; one end of the transmission rod is rotatably connected to the transmission disc, and the other end is rotatably connected to the track protrusion; the drive gear is connected to the output end of the power motor; the drive gear is connected to the fertilizer supply device via a transmission connection.

[0015] Furthermore, it also includes an assembly shell; the assembly shell has a cavity for accommodating the trenching device and the fertilizer supply device; the shovel plate protrudes from the assembly shell. Attached Figure Description

[0016] Figure 1 Overall structure diagram.

[0017] Figure 2 Internal overall structure diagram.

[0018] Figure 3 Overall structural diagram of the trenching device.

[0019] Figure 4 Track board structure diagram.

[0020] Figure 5 : A magnified view of a section of the trackpad.

[0021] Figure 6 Overall structural diagram of the fertilizer supply device.

[0022] Figure 7 Overall structural diagram of the transmission structure.

[0023] Figure 8 Overall structural diagram of the power unit.

[0024] In the diagram: 1. Trenching device; 11. Shovel plate; 111. Track protrusion; 1111. Positioning protrusion; 1112. Action protrusion; 12. Track plate; 121. Track groove; 1211. Limiting groove; 1212. Root cutting groove; 1213. Excavation groove; 1214. Connecting groove; 13. Connecting rod; 2. Fertilizer supply device; 21. Receiving hopper; 211. Discharge port; 22. Limiting structure; 221. Baffle plate; 222. Transmission structure; 2221. Transmission gear; 2222. Transmission rack; 2223. Return spring; 2224. Sliding rod; 23. Baffle plate; 3. Power unit; 31. Power motor; 32. Transmission disc; 33. Transmission rod; 34. Drive gear; 4. Assembly shell. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] A soil-turning and fertilizing device for tea cultivation includes: a ditching device 1, a fertilizer supply device 2, a power unit 3, and an assembly housing 4. Specifically, the assembly housing 4 has a cavity for accommodating the ditching device 1, the fertilizer supply device 2, and the power unit 3. The assembly housing 4 is also assembled with existing agricultural mobile equipment, such as a small tracked chassis. Thus, the operator can control the mobile equipment to move the device along the planting direction of the tea trees. Notably, the assembly housing 4 has a through hole corresponding to the power unit 3 to ensure its normal operation. Preferably, a mounting bracket can be installed in the area of ​​the assembly housing 4 corresponding to the power unit 3. One end of the mounting bracket is fixedly connected to the assembly housing 4, and the other end is fixedly connected to the mobile equipment. Preferably, the assembly housing 4 also has a bracket for mounting a battery.

[0027] Specifically, the trenching device 1 includes a shovel plate 11, a track plate 12, and a connecting rod 13. The shovel plate 11 protrudes from the assembly housing 4. The track plate 12 has a track groove 121. The track groove 121 includes a limiting groove 1211, a root-cutting groove 1212, a digging groove 1213, and a connecting groove 1214. The limiting groove 1211 and the root-cutting groove 1212 are arranged sequentially from top to bottom in the vertical direction. The limiting groove 1211 is connected to the root-cutting groove 1212. There is a gap between the digging groove 1213 and the root-cutting groove 1212. The connecting groove 1214 is symmetrically arranged about the root-cutting groove 1212. One end of the connecting groove 1214 is connected to the root-cutting groove 1212, and the other end is connected to the digging groove 1213, so as to form a closed trapezoid with the root-cutting groove 1212 and the digging groove 1213. Thus, the excavation trench 1213 is connected to the root severance trench 1212.

[0028] A connecting rod 13 is disposed between the track plates 12. One end of the connecting rod 13 is fixedly connected to the shovel plate 11. The track protrusion 111 includes a positioning protrusion 1111 and an actuating protrusion 1112. The positioning protrusion 1111 and the actuating protrusion 1112 are fixedly connected to the connecting rod 13. The positioning protrusion 1111 and the actuating protrusion 1112 are arranged sequentially from top to bottom along the connecting rod 13. The positioning protrusion 1111 extends into the limiting groove 1211. The actuating protrusion 1112 extends into the root-cutting groove 1212. When the positioning protrusion 1111 moves vertically, the actuating protrusion 1112 can reciprocate along the root-cutting groove 1212 and the excavation groove 1213, thereby opening a trench.

[0029] The fertilizer supply device 2 is located on one side of the shovel plate 11. The fertilizer supply device 2 includes a receiving hopper 21, a limiting structure 22, and a baffle plate 23. The receiving hopper 21 is used to receive fertilizer bags. A discharge port 211 is provided on the receiving hopper 21. The discharge direction of the discharge port 211 faces the ditch. The limiting structure 22 includes a baffle plate 221 and a transmission structure 222. The baffle plate 221 corresponds to the discharge port 211. The transmission structure 222 is connected to the baffle plate 221 to drive the baffle plate 221 to move relative to the discharge port 211. The transmission structure 222 includes a transmission gear 2221, a transmission rack 2222, a return spring 2223, and a sliding rod 2224. The transmission gear 2221 is provided with transmission teeth. The transmission teeth are arranged circumferentially along the transmission gear 2221. The transmission gear 2221 meshes with the transmission rack 2222 through the transmission teeth. The sliding rod 2224... The sliding rod 2224 is slidably embedded in the transmission rack 2222. The transmission rack 2222 has bolt holes. The sliding rod 2224 has bolt grooves corresponding to the bolt holes, extending from one end to the other. Thus, the sliding rod 2224 can be connected to the baffle plate 221 via bolts. One end of the return spring 2223 is connected to the baffle plate 221, and the other end is connected to the receiving hopper 21. The baffle plate 23 is connected to the receiving hopper 21. The movement path of the baffle plate 23 corresponds to that of the shovel plate 11. An angle is formed between the shovel plate 11 and the baffle plate 23. The shovel plate 11 is inclined towards the baffle plate 23.

[0030] Power unit 3. Power unit 3 includes a power motor 31, a transmission disk 32, a transmission rod 33, and a drive gear 34. The transmission disk 32 is connected to the output end of the power motor 31. The transmission rod 33 is eccentrically positioned with respect to the transmission disk 32. One end of the transmission rod 33 is rotatably connected to the transmission disk 32, and the other end is rotatably connected to one of the positioning protrusions 1111. Simultaneously, the transmission rod 33 passes through a corresponding track plate 12. The track plate 12 has a through slot corresponding to the movement trajectory of the transmission rod 33. The drive gear 34 is connected to the output end of the power motor 31. The drive gear 34 meshes with the transmission gear 2221, thereby achieving a transmission connection with the fertilizer supply device 2. Specifically, another gear is fixedly mounted on the side of the transmission gear 2221 closest to the power motor 31. The drive gear 34 meshes with this gear, thereby meshing with the transmission gear 2221.

[0031] In practical application, the operator controls the agricultural mobile equipment connected to this device to adjust the relative position between the device and the tea tree, so that the tea tree is positioned on the side of the shovel plate 11 away from the fertilizer supply device 2. Then, the power motor 31 is started. Driven by the power motor 31, the transmission disc 32 rotates continuously. Because the transmission rod 33 and the transmission disc 32 are eccentrically positioned, the transmission rod 33 has a vertical displacement when the transmission disc 32 rotates. One end of the transmission rod 33 is rotatably connected to the connecting rod 13, and the other end is rotatably connected to the transmission disc 32. The track plate 12 has a through groove that matches the transmission rod 33. Therefore, when the transmission disc 32 rotates, the transmission rod 33 will not jam due to interference. Thus, the transmission disc 32 can drive the corresponding positioning protrusion 1111 to move via the transmission rod 33.

[0032] Under the constraint of the limiting groove 1211, the positioning protrusion 1111 moves downward along the limiting groove 1211. Thus, the positioning protrusion 1111 can drive the connecting rod 13 to move synchronously, and simultaneously, the connecting rod 13 drives the moving protrusion 1112 and the shovel plate 11 to move. At this time, the moving protrusion 1112 moves downward along the root-cutting groove 1212. Because the limiting groove 1211 and the root-cutting groove 1212 are on the same straight line, the shovel plate 11 can be inserted vertically downward into the soil. During the insertion of the shovel plate 11 into the soil, the shovel plate 11 cuts off the tea tree roots in its movement path to meet the root-cutting requirements.

[0033] As the shovel plate 11 gradually moves, the actuating protrusion 1112 eventually reaches the connecting groove 1214. At this time, the positioning protrusion 1111 continues to move downwards. Since the connecting groove 1214 is inclined, the actuating protrusion 1112 slides into the excavation groove 1213 under the guidance of the connecting groove 1214. There is a certain gap between the excavation groove 1213 and the root cutting groove 1212, so the connecting rod 13 will tilt to a certain extent, thus forming a certain angle with the vertical direction, which will cause the shovel plate 11 to tilt up to shovel up the soil. On the other hand, when the actuating protrusion 1112 enters the excavation groove 1213, the actuating protrusion 1112 will pass through the guide plate. Under the restriction of the track plate 12, the guide plate can only swing from the connecting groove 1214 to the excavation groove 1213. When the actuating protrusion 1112 enters the excavation trench 1213 through the connecting groove 1214, the actuating protrusion 1112 can push the guide plate to swing, so the guide plate will not interfere with the actuating protrusion 1112, thus allowing the actuating protrusion 1112 to smoothly enter the excavation trench 1213. At this time, the transmission disc 32 rotates half a revolution, and the transmission rod 33 moves to the lowest point of the transmission disc 32, thereby driving the positioning protrusion 1111 to move to the lowest point.

[0034] Since the transmission disc 32 has already rotated half a revolution, its continued rotation will push the positioning protrusion 1111 upwards via the transmission rod 33. Consequently, the positioning protrusion 1111 drives the actuating protrusion 1112 to rise synchronously via the connecting rod 13. Because the guide plate can only swing from the connecting groove 1214 to the excavation groove 1213, it restricts the actuating protrusion 1112, preventing it from reversing and entering the connecting groove 1214 during its ascent. This allows the actuating protrusion 1112 to move along the excavation groove 1213 during its ascent, maintaining the current tilted state of the connecting rod 13. As the connecting rod 13 rises, it can drive the shovel 11 to excavate a certain volume of soil.

[0035] When the actuating protrusion 1112 moves to the other end of the excavation trench 1213, the positioning protrusion 1111 moves to its highest point. At this time, the soil excavated by the shovel plate 11 is still above the shovel plate 11, and a trench-shaped cavity is formed below the shovel plate 11. This satisfies the trenching requirements. On the other hand, as the transmission disc 32 rotates one revolution, the transmission rod 33 moves synchronously to its highest point. Subsequently, with the continued rotation of the transmission disc 32, the positioning protrusion 1111 will begin to descend, allowing it to return to the root-cutting trench 1212 through another connecting groove 1214. Thus, the next action cycle can begin. It is worth noting that during the aforementioned process, the positioning protrusion 1111 remains within the limiting groove 1211.

[0036] On the other hand, when the protrusion 1112 moves to the other end of the trench 1213, the shovel 11 moves to the side of the shield 23 away from the ground. Simultaneously, because there is a certain angle between the shovel 11 and the shield 23, the soil excavated by the shovel 11 will slide down along the shovel 11 onto the shield 23. Thus, the shield 23 will block the soil, preventing it from rapidly backfilling into the trench.

[0037] Simultaneously, while the shovel 11 is performing the aforementioned digging process, the power motor 31 synchronously drives the drive gear 34 to rotate. Driven by the drive gear 34, the transmission gear 2221 rotates synchronously. This causes the transmission gear 2221 to drive the transmission rack 2222 to slide, which in turn drives the baffle plate 221 to move relative to the discharge port 211 of the receiving hopper 21 via the sliding rod 2224, so that the baffle plate 221 no longer blocks the discharge port 211. At this time, the fertilizer filled in the receiving hopper 21 will be discharged through the discharge port 211. Simultaneously, when the receiving hopper 21 discharges fertilizer, the soil dug up by the shovel 11 is blocked by the baffle plate 23, allowing the fertilizer to fall into the trench. Thus, the fertilization process is completed.

[0038] On the other hand, when the baffle plate 221 moves relative to the discharge port 211, it gradually compresses the return spring 2223. Since only a portion of the transmission gear 2221 has transmission teeth, when the portion of the transmission gear 2221 without transmission teeth rotates to the position corresponding to the transmission rack 2222, the transmission gear 2221 will disengage from the transmission rack 2222. At this time, the transmission rack 2222 is released from the constraint of the transmission gear 2221, and the accumulated elastic force of the return spring 2223 is released, thereby driving the baffle plate 221 to return to its initial position, thus blocking the discharge port 211 again. As the power motor 31 continues to operate, the baffle plate 221 will repeat the aforementioned process. Therefore, the output efficiency of the discharge port 211 is limited by the baffle plate 221.

[0039] Secondly, the bolts can be removed, allowing the sliding rod 2224 to slide relative to the transmission rack 2222, thereby adjusting the relative position between the sliding rod 2224 and the transmission rack 2222, and consequently adjusting the area of ​​the baffle plate 221 blocking the outlet 211. When the blocking area increases, the output efficiency of the outlet 211 decreases; when the blocking area decreases, the output efficiency of the outlet 211 increases. When the baffle plate 221 can no longer block the outlet 211, the output efficiency of the outlet 211 reaches its maximum, resulting in continuous fertilizer output. This satisfies the fertilizer needs of tea trees at different stages.

[0040] In summary, the aforementioned process continues when the power motor 31 starts. Simultaneously, driven by the mobile device, this device can move along the planting direction of the tea trees. Therefore, the shielding plate 23 is always in motion; when the shielding plate 23 leaves the current area, the soil on it will slide into the trench. This completes the backfilling process. In actual operation, due to external factors, the soil may not be completely backfilled into the trench. In this case, the staff only needs to make appropriate adjustments, which reduces the workload of subsequent work to a certain extent.

[0041] Therefore, based on the aforementioned process, this invention is fully applicable to the fertilization process of tea trees. While the mobile device is in motion, this invention can continuously complete the processes of root pruning, trenching, fertilization, and soil covering, effectively improving work efficiency and reducing manpower consumption. Furthermore, based on the aforementioned process, it can effectively prevent excavated soil from flying onto the tea trees, thereby effectively preventing the fertilization process from having adverse effects on the tea leaves.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A soil-turning and fertilizing device for tea cultivation, characterized in that: include: Ditching device (1), fertilizer supply device (2); The trenching device (1) includes a shovel plate (11) and a track plate (12); The track plate (12) is provided with a track groove (121); The track plate (12) clamps the shovel plate (11); The shovel plate (11) is arranged in a vertical direction; The shovel plate (11) is provided with a track protrusion (111). The track protrusion (111) extends into the track groove (121) so that the shovel plate (11) moves along the track groove (121) to open the groove; The fertilizer supply device (2) is located on one side of the shovel plate (11); The fertilizer supply device (2) includes a container (21); The container (21) is used to hold fertilizer bags; The container (21) is provided with a discharge port (211); The discharge direction of the discharge port (211) is toward the groove; The trenching device (1) also includes a connecting rod (13); The connecting rod (13) is disposed between the track plates (12); One end of the connecting rod (13) is fixedly connected to the shovel plate (11); The trajectory protrusion (111) includes a positioning protrusion (1111) and an action protrusion (1112). The positioning protrusion (1111) and the actuation protrusion (1112) extend into the trajectory groove (121); The positioning protrusion (1111), the actuation protrusion (1112), and the connecting rod (13) are fixedly connected; The positioning protrusion (1111) and the actuation protrusion (1112) are arranged sequentially from top to bottom along the connecting rod (13); The trajectory groove (121) includes a limiting groove (1211), a root cutting groove (1212), and a soil excavation groove (1213). The limiting groove (1211) and the root cutting groove (1212) are arranged sequentially from top to bottom in the vertical direction; The limiting groove (1211) is connected to the root cutting groove (1212); A gap is provided between the excavation trench (1213) and the root severance trench (1212); The excavation trench (1213) is connected to the root severing trench (1212); The positioning protrusion (1111) extends into the limiting groove (1211); The actuating protrusion (1112) extends into the root severance groove (1212); When the positioning protrusion (1111) moves in the vertical direction, the action protrusion (1112) can reciprocate along the root break groove (1212) and the excavation groove (1213).

2. The soil-turning and fertilizing device for tea cultivation according to claim 1, characterized in that: The trajectory slot (121) also includes a connecting slot (1214). The connecting groove (1214) is symmetrically arranged about the root-breaking groove (1212); One end of the connecting groove (1214) is connected to the root-breaking groove (1212), and the other end is connected to the excavation groove (1213), so as to form a closed trapezoid with the root-breaking groove (1212) and the excavation groove (1213).

3. The soil-turning and fertilizing device for tea cultivation according to claim 1, characterized in that: The fertilizer supply device (2) also includes a limiting structure (22); The limiting structure (22) includes a baffle plate (221) and a transmission structure (222); The baffle plate (221) corresponds to the discharge port (211); The transmission structure (222) is connected to the baffle plate (221) to drive the baffle plate (221) to move relative to the discharge port (211).

4. The soil-turning and fertilizing device for tea cultivation according to claim 3, characterized in that: The transmission structure (222) includes a transmission gear (2221), a transmission rack (2222), and a return spring (2223). The transmission gear (2221) is provided with transmission teeth; The transmission teeth are arranged circumferentially along the transmission gear (2221); The transmission gear (2221) meshes with the transmission rack (2222) through the transmission teeth; The transmission rack (2222) is connected to the baffle plate (221); One end of the return spring (2223) is connected to the baffle plate (221), and the other end is connected to the receiving hopper (21).

5. The soil-turning and fertilizing device for tea cultivation according to claim 4, characterized in that: The transmission structure (222) also includes a sliding rod (2224); The sliding rod (2224) is slidably embedded in the transmission rack (2222); The sliding rod (2224) is connected to the baffle plate (221).

6. The soil-turning and fertilizing device for tea cultivation according to claim 3, characterized in that: The fertilizer supply device (2) also includes a baffle plate (23); The baffle (23) is connected to the receiving hopper (21); The movement path of the baffle plate (23) corresponds to that of the shovel plate (11); An angle is provided between the shovel plate (11) and the baffle plate (23); The shovel (11) is inclined toward the shield (23).

7. A soil-tilling and fertilizing device for tea cultivation according to any one of claims 1 to 6, characterized in that: It also includes a power unit (3); The power unit (3) includes a power motor (31), a transmission disc (32), a transmission rod (33), and a drive gear (34). The transmission disk (32) is connected to the output end of the power motor (31); The transmission rod (33) is eccentrically positioned relative to the transmission disc (32); One end of the transmission rod (33) is rotatably connected to the transmission disk (32), and the other end is rotatably connected to the track protrusion (111); The drive gear (34) is connected to the output end of the power motor (31); The drive gear (34) is connected to the fertilizer supply device (2) in a transmission connection.

8. A soil-tilling and fertilizing device for tea cultivation according to any one of claims 1 to 6, characterized in that: It also includes the assembly of the outer casing (4); The assembly housing (4) has a cavity for accommodating the trenching device (1) and the fertilizer supply device (2); The shovel plate (11) protrudes from the assembly housing (4).

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