A potato planting and topdressing device

Abstract

The utility model relates to a kind of topdressing equipment for potato planting, including mobile carrier, the mobile carrier is vertically provided with the liquid containing bucket for containing liquid fertilizer, liquid containing bucket top mouth is detachably covered with the bucket cover compatible with it, stirring machine is penetrated in the middle part of bucket cover and is used to stir liquid fertilizer in liquid containing bucket;The vertical communication of straight short pipe is fixed in the middle part of the barrel bottom of liquid containing bucket, and the liquid distribution assembly that can simultaneously discharge liquid on the both sides of mobile carrier is connected to the bottom opening of straight short pipe. The utility model reduces labor intensity, and due to the mobility of mobile carrier, the fertilization speed is faster, the coverage area is wider, and the overall operation efficiency is improved. The fertilizer solution can be continuously or intermittently stirred by the stirrer, avoiding the problem of partial crystallization and precipitation of compound fertilizer after standing for a long time. The fertilizer solution is shunted to both sides of the mobile carrier by the liquid distribution assembly, so that the equipment can simultaneously fertilize the potato straight ridge on both sides of the drainage ditch during one trip.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural planting equipment technology, and specifically relates to a topdressing device for potato planting. Background Technology

[0002] Currently, potato cultivation commonly employs the raised bed planting method. This method increases soil temperature, facilitates drainage and flood prevention, enhances aeration of the tuber-forming layer, and enables mechanized field management and harvesting. During the planting process, topdressing potatoes is primarily to replenish soil nutrients, meeting their specific needs during key growth stages such as seedling growth, tuber formation, and tuber enlargement, particularly their high demand for elements like potassium and nitrogen, thereby improving yield and quality.

[0003] Current methods for topdressing potatoes typically involve dissolving compound fertilizer in water and pouring it into a bucket. The bucket is then carried manually, and a single flexible hose with a valve is used to apply the fertilizer along a single row of potatoes. However, this method limits application to one side of the drainage ditch at a time, and the manual carrying of the bucket is labor-intensive. Furthermore, if the fertilizer solution in the bucket is not stirred for an extended period, partial crystallization and precipitation can occur, potentially affecting subsequent crop absorption. Utility Model Content

[0004] The purpose of this utility model is to overcome one of the problems existing in the prior art, and to provide a topdressing device for potato planting. The specific technical solution is as follows: This utility model provides a topdressing device for potato planting, including a mobile carrier. A liquid fertilizer container is longitudinally arranged on the mobile carrier. The top of the liquid fertilizer container is detachably covered with a matching lid. A mixer for stirring the liquid fertilizer in the liquid fertilizer container is inserted through the middle of the lid. A straight short pipe is vertically connected and fixed to the middle of the bottom of the liquid fertilizer container. A liquid distribution component that can simultaneously drain liquid from both sides of the mobile carrier is connected to the bottom of the straight short pipe.

[0005] As a preferred embodiment of this utility model, the liquid separation assembly includes a three-way pipe for liquid separation. The top opening of the vertical part of the three-way pipe is detachably axially connected to the bottom opening of the straight short pipe. The two ends of its horizontal part are respectively detachably and symmetrically connected to a drain hose. The bottom opening of the drain hose is connected to a 90° elbow. The two ends of the horizontal part of the three-way pipe are respectively axially and symmetrically connected to a valve that is adapted to it.

[0006] As a preferred embodiment of this utility model, the mobile vehicle includes an inclined H-shaped front frame, with a front roller longitudinally rotatably connected to the inner side of the bottom of the front frame, an H-shaped rear frame longitudinally fixed to the bottom surface of the middle, and rear rollers longitudinally symmetrically rotatably connected to the outer sides of the two bottom ends of the rear frame, a U-shaped handrail fixed to the top of the rear frame, and handles vertically symmetrically connected to both ends of the handrail, a flat support plate horizontally fixed to the top surface of the middle, a circular groove integrally embedded in the middle of the flat support plate, a liquid container longitudinally engaging with the circular groove, and a straight short pipe vertically passing through a through hole opened in the middle of the circular groove.

[0007] In a preferred embodiment of this invention, the outer diameter of the front roller is larger than that of the rear roller.

[0008] As a preferred embodiment of this utility model, the outer diameter of the circular groove is greater than the width of the flat support plate, and the top edge of the circular groove is higher than the top surface of the flat support plate.

[0009] As a preferred embodiment of this utility model, the outer end of the flat support plate is fixedly connected to the front frame with a diagonal support plate.

[0010] As a preferred embodiment of this utility model, the outer peripheral wall of the circular groove is radially symmetrically perforated with slits along the long side of the flat support plate; the bottom of the outer peripheral wall of the liquid container is radially symmetrically fixed with positioning lugs, and the two positioning lugs pass through the corresponding slits with a gap.

[0011] As a preferred technical solution of this utility model, the two ends of the top surface of the flat support plate are respectively provided with clamping components vertically and symmetrically along the center line; the clamping component includes a horizontally placed right-angled U-shaped groove, and the groove opening is arranged opposite to the corresponding cut gap; the part of the positioning ear block extending out of the corresponding cut is engaged with the corresponding groove, and the groove and the positioning ear block are fixedly connected by a vertically inserted fastening bolt.

[0012] As a preferred embodiment of this utility model, an angle adjustment mechanism is laterally arranged on the top surface of the front frame located directly below the circular groove. The angle adjustment mechanism includes a fixed support plate fixedly attached to the top surface of the front frame. The fixed support plate has an inverted T-shaped displacement groove extending through it along its long axis. Movable support plates are symmetrically and laterally connected to both ends of the displacement groove, and a limiting groove is recessed on the top surface of the movable support plate along its long axis. A positioning block is fixedly attached to the top surface of the end of the displacement groove. A tightening screw is vertically screwed to the middle of the positioning block, and the outer diameter of the tightening screw is the same as the inner width of the limiting groove. The movable support plate is positioned in the displacement groove by tightening the tightening screw against the limiting groove. L-shaped suspension rods are vertically and symmetrically fixed to both ends of the movable support plate. A horizontally arranged limiting ring is radially fixed to the outer end of the suspension rod, and the drainage hose passes through the corresponding limiting ring.

[0013] As a preferred embodiment of this utility model, a battery slot is vertically fixed to the end of the flat support plate facing the front frame, and a storage battery for powering the mixer is fixedly engaged in the battery slot.

[0014] The beneficial effects of this utility model are: 1. The fertilization equipment of this utility model replaces the traditional manual method of carrying buckets with a mobile carrier. Operators no longer need to carry heavy buckets; they only need to drive the mobile carrier to carry out fertilization operations. This significantly reduces labor intensity. At the same time, due to the mobility of the mobile carrier, the fertilization speed is faster, the coverage area is wider, and the overall operation efficiency is improved.

[0015] 2. The topdressing equipment of this invention can continuously or intermittently stir the fertilizer solution through a mixer, avoiding the partial crystallization and precipitation problem that occurs when compound fertilizer is diluted with water and left to stand for a long time. This ensures that the fertilizer solution is always uniformly mixed, resulting in a more consistent nutrient concentration during fertilization, improving the crop's absorption efficiency of elements such as potassium and nitrogen, thereby promoting the growth of potato seedlings and tuber enlargement, and ultimately increasing yield and quality.

[0016] 3. The fertilization equipment of this invention uses a liquid-distributing component to divert fertilizer solution to both sides of the mobile carrier, allowing the equipment to simultaneously fertilize potato rows on both sides of the drainage ditch during a single journey. Compared to single-row fertilization, this reduces the number of round trips, enables simultaneous operation of two rows, and significantly improves fertilization efficiency. Furthermore, this design adapts to the parallel layout of potato row cultivation, ensuring better matching of fertilization operations with field management practices. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 This diagram shows the structure of the present invention without the liquid container. Figure 3 This invention shows a schematic diagram of the structure in which the liquid container is detached from the mixer. Figure 4 This invention shows a schematic diagram of the assembly of the liquid holding tank and the liquid dispensing component. Figure 5 A schematic diagram of the angle adjustment mechanism in this utility model is shown.

[0018] The diagram shows: 1. Mobile vehicle; 11. Front frame; 12. Front roller; 13. Handrail frame; 131. Handle; 14. Rear frame; 15. Rear roller; 16. Flat support plate; 161. Diagonal support plate; 17. Circular groove; 171. Through hole; 172. Slit; 2. Liquid container; 21. Cap; 22. Straight short pipe; 23. Positioning lug; 3. Mixer; 4. Battery; 41. Battery slot; 5. Liquid distribution assembly; 51. T-connector; 52. Valve; 53. Drain hose; 531. Elbow; 6. Angle adjustment mechanism; 61. Fixed support plate; 611. Displacement groove; 62. Moving support plate; 621. Limiting groove; 63. Limiting ring; 631. Suspension rod; 64. Positioning block; 641. Tightening screw; 7. Clamping assembly; 71. Clamping groove; 72. Fastening bolt. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model. Example 1

[0020] To address the technical problems in the background section, the following topdressing equipment for potato cultivation is provided: Combination Figure 1 As shown, a topdressing device for potato planting includes a mobile carrier 1. A liquid fertilizer container 2 is longitudinally arranged on the mobile carrier 1. The top of the liquid fertilizer container 2 is detachably covered with a matching lid 21. A mixer 3 for stirring the liquid fertilizer in the liquid fertilizer container 2 is inserted through the middle of the lid 21. A straight short pipe 22 is vertically connected and fixed to the middle of the bottom of the liquid fertilizer container 2. A liquid distribution component 5 is connected to the bottom of the straight short pipe 22 to simultaneously drain liquid from both sides of the mobile carrier 1.

[0021] In the above technical solution, the topdressing equipment replaces the traditional manual method of carrying buckets with a mobile carrier 1. Operators no longer need to carry heavy buckets; they only need to drive the mobile carrier to carry out fertilization operations. This significantly reduces labor intensity, and due to the mobility of the mobile carrier 1, the fertilization speed is faster, the coverage area is wider, and the overall operation efficiency is improved.

[0022] This topdressing equipment uses a mixer 3 to continuously or intermittently stir the fertilizer solution, avoiding the partial crystallization and precipitation that can occur when compound fertilizer is diluted with water and left to stand for a long time. This ensures that the fertilizer solution remains uniformly mixed, resulting in a more consistent nutrient concentration during fertilization. This improves the crop's absorption efficiency of elements such as potassium and nitrogen, thereby promoting potato seedling growth and tuber enlargement, ultimately increasing yield and quality.

[0023] This topdressing equipment uses a liquid distribution component 5 to distribute fertilizer solution to both sides of the moving carrier, allowing the equipment to simultaneously fertilize potato rows on both sides of the drainage ditch during a single journey. Compared to single-row fertilization, this reduces the number of round trips, enables simultaneous operation of two rows, and significantly improves fertilization efficiency. Furthermore, this design adapts to the parallel layout of potato row cultivation, ensuring better matching of topdressing operations with field management practices.

[0024] like Figure 1 and Figure 4 As shown, the liquid separation assembly 5 includes a three-way pipe 51 for liquid separation. The top of the vertical part of the three-way pipe 51 is detachably axially connected to the bottom of the straight short pipe 22. The two ends of its horizontal part are detachably symmetrically connected to a drain hose 53. The bottom of the drain hose 53 is connected to a 90° elbow 531. The two ends of the horizontal part of the three-way pipe 51 are axially symmetrically connected to a valve 52 that is adapted to it.

[0025] In the above technical solution, the liquid distribution component 5 is a three-way pipe 51, with its vertical part connected to the fertilizer solution source and its two horizontal ends symmetrically connected to two drainage hoses 53. This structure divides the fertilizer solution from the liquid storage tank 2 into two parts, guiding the fertilizer solution to the left and right sides of the moving carrier 1 through two symmetrical paths. This allows the equipment to simultaneously complete the topdressing operation for two rows of potato ridges in a single pass in the field.

[0026] At each end of the horizontal section of the tee pipe 51, a valve 52 is fitted. These two independent valves give the operator the ability to control the flow of fertilizer solution on each side separately. The flow rate on either side can be adjusted according to the actual field conditions.

[0027] At the bottom of each drainage hose 53, a 90° elbow 531 is connected. The elbow 531 changes the vertical downward flow direction of the drainage hose 53 to a horizontal or oblique direction. This structure can smoothly guide the fertilizer solution to the root area of ​​the potato plant, effectively preventing the fertilizer solution from impacting the crop seedlings or eroding the soil of the ridge due to vertical high-speed dripping, ensuring the fertilization effect and protecting the crop growth environment.

[0028] The T-connector 51 is detachably connected to the straight short pipe 22 and the drain hose 53. This facilitates quick assembly and disassembly, saving equipment maintenance and storage space. Example 2

[0029] Combination Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, as Figure 1 and Figure 2As shown, the mobile vehicle 1 includes an inclined H-shaped front frame 11. A front roller 12 is longitudinally rotatably connected to the inner bottom of the front frame 11. An H-shaped rear frame 14 is longitudinally fixed to the bottom surface of the front frame 11. Rear rollers 15 are longitudinally symmetrically rotatably connected to the outer sides of the two bottom ends of the rear frame 14. A U-shaped handrail 13 is laterally fixed to the top of the handrail 14. Handles 131 are vertically symmetrically connected to both ends of the handrail 13. A flat support plate 16 is horizontally fixed to the top surface of the handrail 16. A circular groove 17 is integrally embedded in the middle of the flat support plate 16. The liquid container 2 is longitudinally engaged in the circular groove 17. The straight short pipe 22 passes vertically through the through hole 171 opened in the middle of the circular groove 17.

[0030] like Figure 1 and Figure 2 As shown, the outer diameter of the front roller 12 is larger than the outer diameter of the rear roller 15.

[0031] In the above technical solution, the mobile vehicle 1 adopts a three-wheel layout with a narrow overall structure, which allows it to move better within drainage ditches. The outer diameter of the front roller 12 is larger than that of the rear roller 15, enabling it to easily cross field ditches. This design allows the equipment to naturally adapt to the field terrain, improving its maneuverability and turning flexibility between furrows and preventing the four-wheel structure from bottoming out or getting stuck in the ditch.

[0032] like Figure 2 As shown, the outer diameter of the circular groove 17 is greater than the width of the flat support plate 16, and the top edge of the circular groove 17 is higher than the top surface of the flat support plate 16.

[0033] like Figure 1 and Figure 2 As shown, the outer end of the flat support plate 16 is fixedly connected to the front frame 11 with a diagonal support plate 161.

[0034] In the above technical solution, the wide and high-sided circular groove 17 provides a deep and stable locking and positioning seat for the liquid container 2, effectively preventing the container from shaking or falling off during bumps. The diagonal brace 161 significantly enhances the connection rigidity between the flat brace 16 and the frame, preventing deformation or breakage due to the full load of the liquid container 2.

[0035] like Figures 1-4 As shown, the outer peripheral wall of the circular groove 17 is radially symmetrically provided with slits 172 along the long side of the flat support plate 16; the bottom of the outer peripheral wall of the liquid container 2 is radially symmetrically fixed with positioning lugs 23, and the two positioning lugs 23 pass through the corresponding slits 172 with a gap.

[0036] In the above technical solution, the cooperation between the positioning ear block 23 and the slit 172 eliminates the possibility of the liquid container 2 rotating circumferentially in the circular groove 17, ensuring the stability of the posture of components such as the mixer 3.

[0037] like Figure 1 and Figure 2 As shown, clamping components 7 are respectively arranged vertically and symmetrically along the centerline at both ends of the top surface of the flat support plate 16; the clamping component 7 includes a horizontally placed right-angled U-shaped groove 71, and the groove opening of the groove 71 is arranged opposite to the gap of the corresponding cut 172; the part of the positioning ear block 23 extending out of the corresponding cut 172 engages with the corresponding groove 71, and the groove 71 and the positioning ear block 23 are fixedly connected by a vertically inserted fastening bolt 72.

[0038] In the above technical solution, the bottom of the liquid container 2 is rigidly connected to the flat support plate 16 by the clamping component 7, forming a solid whole. This not only prevents the container from bouncing up and down during movement, but also effectively resists the tendency of the liquid container 2 to tilt due to inertia when the operator presses down on the handrail to lift the front roller 12 to cross an obstacle, ensuring that it remains stable on the mobile carrier 1 and guaranteeing the stability and safety of the operation process.

[0039] like Figure 1 and Figure 2 As shown, a battery slot 41 is vertically fixed to the end of the flat support plate 16 facing the front frame 11, and a storage battery 4 for powering the mixer 3 is fixedly engaged in the battery slot 41.

[0040] In the above technical solution, the storage battery 4 is directly integrated into the mobile carrier 1, providing a continuous and independent power source for the mixer 3 without the need for external power cords, so that the equipment can move and operate in the field without restriction. Example 3

[0041] Combination Figure 1 , Figure 2 and Figure 5 As shown, based on the above embodiments, this embodiment further provides the following: In this embodiment, an angle adjustment mechanism 6 is laterally arranged on the top surface of the front frame 11 located directly below the circular groove 17. The angle adjustment mechanism 6 includes a fixed support plate 61 fixedly attached to the top surface of the front frame 11. The fixed support plate 61 has an inverted T-shaped displacement groove 611 extending through it along its long axis. A movable support plate 62 is symmetrically and laterally inserted at both ends of the displacement groove 611, and a limiting groove 621 is recessed on the top surface of the movable support plate 62 along its long axis. A fixed support is attached to the top surface of the end of the displacement groove 611. The positioning block 64 has a tightening screw 641 vertically screwed to its center, and the outer diameter of the tightening screw 641 is the same as the inner width of the limiting groove 621. The movable support plate 62 is positioned in the displacement groove 611 by tightening the tightening screw 641 against the limiting groove 621. L-shaped suspension rods 631 are vertically and symmetrically fixed to both ends of the movable support plate 62. A horizontally set limiting ring 63 is radially fixed to the outer end of the suspension rod 631, and the drain hose 53 passes through the corresponding limiting ring 63.

[0042] In the above technical solution, after the operator loosens the tightening screw 641, the lateral position of the two movable support plates 62 in the displacement groove 611 can be adjusted. This allows the limiting ring 63 installed at the end of the movable support plate 62 to move accordingly, thereby adjusting the horizontal spacing of the elbow 531 at the end of the drainage hose 53 passing through it. This ensures that the equipment can adapt to the spacing changes of potato rows in different fields, ensuring that the fertilizer solution can be better aligned with the crop roots on both sides of the furrow, greatly enhancing the versatility and operational efficiency of the equipment.

[0043] Working principle and usage process of this utility model: In use, the operator first lifts the handle 131 and pushes the entire device to the field. The lid 21 is opened, and compound fertilizer and water are added to the liquid container to mix into liquid fertilizer. The lid 21 is then replaced. The mixer 3, powered by the battery 4, is started to continuously stir the fertilizer solution until it dissolves.

[0044] Then, the operator holds handle 131 and pushes the equipment into the field drainage ditch. According to the actual row spacing, the adjustable angle adjustment mechanism 6: loosens the top screw 641, moves the moving support plate 62 laterally to change the position of the limiting ring 63, thereby adjusting the lateral angle of the drainage hoses 53 on both sides, so that the elbows 531 at the ends of the drainage hoses 53 can be aligned with the fertilizer application points on both sides of the row. After adjustment, tighten the top screw 641 again to fix it.

[0045] Next, while pushing the equipment forward at a constant speed along the drainage ditch, the operator opens the valves 52 on both sides of the three-way pipe 51. Under the action of gravity, the fertilizer solution flows into the three-way pipe 51 through the straight short pipe 22, is evenly distributed to the two drainage hoses 53, and is finally smoothly guided to the root area of ​​the potato plants on both sides through the elbow 531.

[0046] Finally, after the fertilization operation is completed, close valve 52. The removable liquid distribution assembly 5 should be cleaned to prevent clogging. If the liquid container 2 needs cleaning, unscrew the fastening bolt 72 to disengage the positioning lug 23 from the slot 71, allowing the liquid container 2 to be removed from the circular groove 17 for thorough cleaning, making it convenient for next use.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A topdressing device for potato planting, characterized in that: The device includes a mobile carrier (1), on which a liquid container (2) for holding liquid fertilizer is longitudinally arranged. The top opening of the liquid container (2) is detachably covered with a matching lid (21). A mixer (3) for stirring the liquid fertilizer in the liquid container (2) is inserted through the middle of the lid (21). A straight short pipe (22) is vertically connected and fixed to the middle of the bottom of the liquid container (2). A liquid distribution component (5) for simultaneously draining liquid from both sides of the mobile carrier (1) is connected to the bottom opening of the straight short pipe (22).

2. The topdressing equipment for potato planting according to claim 1, characterized in that: The liquid separation assembly (5) includes a three-way pipe (51) for liquid separation. The top of the vertical part of the three-way pipe (51) is detachably axially connected to the bottom of the straight short pipe (22). The two ends of its horizontal part are detachably symmetrically connected to a drain hose (53). The bottom of the drain hose (53) is connected to a 90° elbow (531). The two ends of the horizontal part of the three-way pipe (51) are axially symmetrically connected to a valve (52) that is compatible with it.

3. The topdressing equipment for potato planting according to claim 2, characterized in that: The mobile vehicle (1) includes an inclined H-shaped front frame (11), with a front roller (12) longitudinally rotatably connected to the inner side of the bottom of the front frame (11), an H-shaped rear frame (14) longitudinally fixed to the bottom surface of the middle, and rear rollers (15) longitudinally symmetrically rotatably connected to the outer sides of the two bottom ends of the rear frame (14), a U-shaped handrail (13) horizontally fixed to the top, and handles (131) vertically symmetrically connected to both ends of the handrail (13), a flat support plate (16) horizontally fixed to the top surface of the middle, a circular groove (17) integrally embedded in the middle of the flat support plate (16), a liquid container (2) longitudinally engaging with the circular groove (17), and a straight short pipe (22) vertically passing through a through hole (171) opened in the middle of the circular groove (17).

4. The topdressing equipment for potato planting according to claim 3, characterized in that: The outer diameter of the front roller (12) is larger than the outer diameter of the rear roller (15).

5. The topdressing equipment for potato planting according to claim 3, characterized in that: The outer diameter of the circular groove (17) is greater than the width of the flat support plate (16), and the top edge of the circular groove (17) is higher than the top surface of the flat support plate (16).

6. The topdressing equipment for potato planting according to claim 5, characterized in that: The outer end of the flat support plate (16) is fixedly connected to the front frame (11) with a diagonal support plate (161).

7. The topdressing equipment for potato planting according to claim 5, characterized in that: The outer periphery of the circular groove (17) is radially symmetrically perforated with slits (172) along the long side of the flat support plate (16); the bottom of the outer periphery of the liquid container (2) is radially symmetrically fixed with positioning lugs (23), and the two positioning lugs (23) pass through the corresponding slits (172) with a gap.

8. The topdressing equipment for potato planting according to claim 7, characterized in that: The top surfaces of the flat support plate (16) are respectively provided with clamping components (7) vertically and symmetrically arranged along the center line at both ends; the clamping component (7) includes a horizontally placed right-angled U-shaped groove (71), and the groove opening of the groove (71) is arranged opposite to the gap of the corresponding cut (172); the part of the positioning ear block (23) extending out of the corresponding cut (172) engages with the corresponding groove (71), and the groove (71) and the positioning ear block (23) are fixedly connected by a vertically inserted fastening bolt (72).

9. A topdressing device for potato planting according to claim 7, characterized in that: An angle adjustment mechanism (6) is laterally arranged on the top surface of the front frame (11) located directly below the circular groove (17); the angle adjustment mechanism (6) includes a fixed support plate (61) fixedly attached to the top surface of the front frame (11), the fixed support plate (61) has an inverted T-shaped displacement groove (611) extending through it along its long axis, the two ends of the displacement groove (611) are respectively laterally symmetrically connected with movable support plates (62), and the top surface of the movable support plate (62) is recessed with a limiting groove (621) along its long axis; a positioning block (64) is fixedly attached to the top surface of the end of the displacement groove (611). The positioning block (64) is vertically screwed with a tightening screw (641) in the middle, and the outer diameter of the tightening screw (641) is the same as the inner width of the limiting groove (621); the moving support plate (62) is positioned in the shifting groove (611) by tightening the tightening screw (641) against the limiting groove (621); the two ends of the moving support plate (62) are respectively vertically and symmetrically fixed with L-shaped suspension rods (631), and the outer end of the suspension rod (631) is radially fixed with a horizontally arranged limiting ring (63), and the gap of the drain hose (53) passes through the corresponding limiting ring (63).

10. A topdressing device for potato planting according to any one of claims 3 to 9, characterized in that: The top surface of the flat support plate (16) facing the end of the front frame (11) is vertically fixed with a battery slot (41), and a storage battery (4) for powering the mixer (3) is fixedly engaged in the battery slot (41).

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