Saline-alkali soil weeding and fertilizing integrated device

By designing an integrated weeding and fertilization device for saline-alkali land, continuous operation of weeding, ditching and fertilization is achieved, solving the problems of high labor intensity and low fertilizer utilization rate in the traditional separate operation mode, and improving the efficiency of saline-alkali land improvement and crop yield increase.

CN121621101AInactive Publication Date: 2026-03-10INST OF CROP SCI NINGXIA ACADEMY OF AGRI & FORESTRY SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-03-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional methods of separating weeding and fertilization in saline-alkali land result in high labor intensity, low efficiency, and low fertilizer utilization, which can easily lead to a vicious cycle of "irrigation-salinization" and make it difficult to achieve efficient improvement of saline-alkali land and sustained crop yield increase.

Method used

Design an integrated weeding and fertilizing device for saline-alkali land. The device uses a traction device to drive the weeding disc to rotate and cut weeds, combined with a fertilizing mechanism to open trenches in the soil and apply fertilizer in a quantitative manner. Finally, the soil covering mechanism backfills the soil, realizing continuous operation of weeding, trenching, fertilizing and covering.

Benefits of technology

It achieves integrated weeding and fertilization, thoroughly removes weed roots, ensures fertilizer penetrates deep into the soil, reduces volatilization, minimizes the impact of surface salt on fertilizer in saline-alkali soil, and improves the efficiency of crop growth environment improvement.

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Abstract

The invention discloses a saline-alkali soil weeding and fertilizing integrated device, and belongs to the technical field of agricultural planting, the saline-alkali soil weeding and fertilizing integrated device comprises a first connecting plate, one end of the first connecting plate is connected with traction equipment, traction wheels are symmetrically arranged at the bottom of the first connecting plate, and one end, close to the traction equipment, of the bottom of the first connecting plate is rotatably connected with a weeding mechanism; the weeding mechanism comprises a weeding disc rotationally connected with the bottom face of the first connecting plate, a fertilizing mechanism is arranged on the side, away from the weeding disc, of the bottom of the first connecting plate and comprises a second driving part fixedly connected to the bottom of the first connecting plate, the second driving part is fixedly connected with a second connecting plate, and a ditching part and a fertilizing part are arranged on the second connecting plate. The top surface of the first connecting plate is fixedly connected with a fertilizer box. According to the invention, integrated operation of weeding and fertilizing can be realized, and operation links are reduced; weed root systems can be thoroughly removed through rotary cutting of the weeding disc, and regeneration is avoided; the fertilizing part and the ditching part work cooperatively to ensure that the fertilizer penetrates into the soil and the volatilization is reduced.
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Description

Technical Field

[0001] This invention belongs to the field of agricultural planting technology, and in particular relates to an integrated device for weeding and fertilizing in saline-alkali land. Background Technology

[0002] In traditional agricultural production, weeding and fertilization in saline-alkali land have long been separate processes. Weeding relies heavily on manual labor or simple machinery (such as hoes and rotary tillers), but manual weeding is labor-intensive, inefficient, and fails to completely remove perennial weeds with extensive root systems. While mechanical weeding can improve efficiency, it exacerbates soil disturbance, leading to the concentration of saline-alkali substances near crop roots and further intensifying stress. Fertilization is hampered by the high pH and soil compaction in saline-alkali land, resulting in extremely low fertilizer utilization. Traditional broadcasting or strip application easily leads to fertilizer combining with sodium and calcium ions in the soil to form insoluble compounds, and excessive irrigation can exacerbate groundwater level rise, triggering a vicious cycle of "irrigation-salinization." This separate "weeding-fertilization-irrigation" operational model is not only time-consuming and labor-intensive but also makes it difficult to achieve efficient improvement of saline-alkali land and sustained crop yield increases. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated weeding and fertilization device for saline-alkali land, so as to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides an integrated weeding and fertilizing device for saline-alkali land, comprising a first connecting plate, one end of which is connected to a traction device, and traction wheels symmetrically arranged at the bottom of the first connecting plate. A weeding mechanism is rotatably connected to the bottom of the first connecting plate near the traction device. The weeding mechanism includes a weeding disc rotatably connected to the bottom surface of the first connecting plate. The weeding disc is driven by a first driving unit, which is driven by the traction wheels near the traction device. A fertilizing mechanism is provided on the bottom side of the first connecting plate away from the weeding disc. The fertilizing mechanism includes a second driving unit fixed to the bottom of the first connecting plate. The second driving unit is fixed to a second connecting plate. The second connecting plate is respectively provided with a trenching part and a fertilizing part. A fertilizer box is fixed to the top surface of the first connecting plate. A quantitative dispensing part is provided inside the fertilizer box, and the quantitative dispensing part communicates with the fertilizing part. A soil covering mechanism is provided on the bottom side of the first connecting plate away from the fertilizing part.

[0005] Optionally, a first connecting shaft is fixedly connected between the two traction wheels near the traction device. A first bevel gear is provided on the first connecting shaft. A second connecting shaft is provided above the first bevel gear. The second connecting shaft is rotatably connected to the bottom surface of the first connecting plate. A second bevel gear is fixedly connected to the bottom surface of the second connecting shaft. The second bevel gear meshes with the first bevel gear. A third connecting plate is fixedly connected between the two traction wheels. The second connecting shaft is rotatably connected to the third connecting plate. The third connecting plate is located above the second bevel gear. A first pulley is fixedly connected to the second connecting shaft. The first pulley is connected to the first drive unit via a belt.

[0006] Optionally, the first drive unit includes a third connecting shaft rotatably connected to the bottom surface of the first connecting plate, a second pulley is mounted on the third connecting shaft, the second pulley is connected to the belt drive, and the weeding disc is fixedly connected to the bottom of the third connecting shaft.

[0007] Optionally, the bottom surface of the weeding disc is provided with multiple cutters at equal intervals.

[0008] Optionally, the second driving unit includes a first electric telescopic rod fixedly connected to the bottom surface of the first connecting plate. The output end of the first electric telescopic rod is fixedly connected to the top surface of the second connecting plate. Guide posts are symmetrically fixedly connected to both sides of the bottom surface of the first connecting plate. The guide posts are slidably connected to the second connecting plate. A baffle is fixedly connected to the bottom surface of the guide posts. The baffle is located below the second connecting plate.

[0009] Optionally, the grooved portion includes a plurality of first connecting rods fixedly to the bottom surface of the second connecting plate at equal intervals, and the bottom surface of the first connecting rods is fixedly provided with grooved teeth.

[0010] Optionally, the fertilizer application section includes a plurality of first connecting pipes evenly spaced on the second connecting plate. The bottom surface of the first connecting pipe is provided with a discharge port, and the top surface of the first connecting pipe is fixedly connected to and connected to a flexible hose. The flexible hose passes through the first connecting plate and is connected to the quantitative dispensing section.

[0011] Optionally, a fourth connecting plate is fixedly connected inside the fertilizer box. Multiple transition boxes are evenly spaced at the bottom of the fourth connecting plate. The transition boxes are connected to the fourth connecting plate, and the bottom of the transition boxes is connected to the flexible hose. A dispensing seat is rotatably connected inside the transition box. Multiple grooves are evenly spaced around the surface of the dispensing seat. A first motor is fixedly connected to the inner wall of the fertilizer box. The output shaft of the first motor is fixedly connected to a fourth connecting shaft. The fourth connecting shaft is fixedly connected to multiple dispensing seats respectively. The first motor is located below the fourth connecting plate.

[0012] Optionally, a vibration motor is fixedly connected to the bottom of the fertilizer box, and a fifth connecting plate is slidably connected to the bottom of the fertilizer box. The vibration motor is driven by the fifth connecting plate, and the fifth connecting plate abuts against the flexible hose.

[0013] Optionally, the soil covering mechanism includes second connecting rods symmetrically fixed to the bottom surface of the first connecting plate, and a soil covering plate is rotatably connected between the bottoms of the two second connecting rods.

[0014] This invention discloses the following technical effects: The invention uses a traction device to pull a first connecting plate, and the traction wheel rolls on the surface of saline-alkali land to provide forward propulsion. The weeding mechanism drives the weeding disc to rotate via a first drive unit, cutting weeds; the fertilization mechanism adjusts the height of the trenching and fertilization sections via a second drive unit. The trenching section forms grooves in the soil, and the fertilization section applies a measured amount of fertilizer from the fertilizer box into the grooves; the covering mechanism then covers and backfills the soil, completing the continuous operation of "weeding-ditching-fertilizing-covering". This invention enables integrated weeding and fertilization, reducing operational steps; the rotating weeding disc thoroughly removes weed roots, preventing regrowth; the fertilization and trenching sections work together to ensure fertilizer penetrates deep into the soil, reducing volatilization; the covering mechanism prevents fertilizer exposure, reducing the impact of salt on the fertilizer surface. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the integrated weeding and fertilization device for saline-alkali land according to the present invention; Figure 2 This is a front view of the integrated weeding and fertilization device for saline-alkali land according to the present invention; Figure 3 This is a schematic diagram of the internal structure of the fertilizer box of the present invention.

[0016] Figure label: 1. First connecting plate; 2. Traction wheel; 3. Weeding disc; 4. Second connecting plate; 5. Fertilizer box; 6. First connecting shaft; 7. First bevel gear; 8. Second connecting shaft; 9. Second bevel gear; 10. Third connecting plate; 11. First pulley; 12. Belt; 13. Third connecting shaft; 14. Second pulley; 15. Cutter; 16. First electric telescopic rod; 17. Guide column; 18. Baffle; 19. First connecting rod; 20. Grooving teeth; 21. First connecting pipe; 22. Discharge port; 23. Flexible hose; 24. Fourth connecting plate; 25. Transition box; 26. Dispensing seat; 27. Groove; 28. First motor; 29. ​​Fourth connecting shaft; 30. Vibration motor; 31. Fifth connecting plate; 32. Second connecting rod; 33. Covering plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 3 As shown, this embodiment provides an integrated weeding and fertilizing device for saline-alkali land, including a first connecting plate 1. One end of the first connecting plate 1 is connected to a traction device. Traction wheels 2 are symmetrically arranged at the bottom of the first connecting plate 1. A weeding mechanism is rotatably connected to the bottom of the first connecting plate 1 near the traction device. The weeding mechanism includes a weeding disc 3 rotatably connected to the bottom surface of the first connecting plate 1. The weeding disc 3 is driven by a first driving part, which is driven by the traction wheels 2 near the traction device. A fertilizing mechanism is provided on the bottom side of the first connecting plate 1 away from the weeding disc 3. The fertilizing mechanism includes a second driving part fixed to the bottom of the first connecting plate 1. The second driving part is fixed to a second connecting plate 4. The second connecting plate 4 is provided with a trenching part and a fertilizing part. A fertilizer box 5 is fixed to the top surface of the first connecting plate 1. A quantitative dispensing part is provided inside the fertilizer box 5. The quantitative dispensing part is connected to the fertilizing part. A soil covering mechanism is provided on the bottom side of the first connecting plate 1 away from the fertilizing part.

[0020] This invention uses a traction device to pull the first connecting plate 1, and the traction wheel 2 rolls on the surface of saline-alkali land to provide forward propulsion. The weeding mechanism drives the weeding disc 3 to rotate via the first drive unit, cutting the weeds. The fertilization mechanism adjusts the height of the trenching section and the fertilization section via the second drive unit. The trenching section forms a trench in the soil, and the fertilization section applies a measured amount of fertilizer from the fertilizer box 5 into the trench. The soil covering mechanism then covers and backfills the soil, completing the continuous operation of "weeding-ditching-fertilizing-soil covering". This invention enables integrated weeding and fertilization, reducing operational steps; the rotating weeding disc 3 thoroughly removes weed roots, preventing regrowth; the fertilization section and trenching section work together to ensure fertilizer penetrates deep into the soil, reducing volatilization; the soil covering mechanism prevents fertilizer exposure, reducing the impact of salt on the fertilizer from the saline-alkali land surface.

[0021] In a further optimized design, a first connecting shaft 6 is fixedly connected between the two traction wheels 2 near the traction device. A first bevel gear 7 is mounted on the first connecting shaft 6. A second connecting shaft 8 is mounted above the first bevel gear 7. The second connecting shaft 8 is rotatably connected to the bottom surface of the first connecting plate 1. A second bevel gear 9 is fixedly connected to the bottom surface of the second connecting shaft 8 and meshes with the first bevel gear 7. A third connecting plate 10 is fixedly connected between the two traction wheels 2. The second connecting shaft 8 is rotatably connected to the third connecting plate 10. The third connecting plate 10 is located above the second bevel gear 9. A first pulley 11 is fixedly connected to the second connecting shaft 8. The first pulley 11 is connected to the first drive unit via a belt 12.

[0022] When the traction wheel 2 rotates, the first connecting shaft 6 drives the first bevel gear 7 to rotate; the first bevel gear 7 meshes with the second bevel gear 9, driving the second connecting shaft 8 to rotate; the first pulley 11 on the second connecting shaft 8 transmits power to the first drive unit through the belt 12, providing rotational power to the weeding disc 3. The weeding mechanism is driven by the traveling power of the traction wheel 2, requiring no additional power source, making it energy-efficient and effective; the combination of bevel gears and belt 12 provides stable transmission, adapts to the uneven terrain of saline-alkali land, and avoids power interruption.

[0023] In a further optimized design, the first drive unit includes a third connecting shaft 13 rotatably connected to the bottom surface of the first connecting plate 1. A second pulley 14 is mounted on the third connecting shaft 13, and the second pulley 14 is connected to the belt 12 for transmission. A weeding disc 3 is fixedly connected to the bottom of the third connecting shaft 13.

[0024] The belt 12 drives the second pulley 14 to rotate, the second pulley 14 drives the third connecting shaft 13 to rotate, and the weeding disc 3 at the bottom of the third connecting shaft 13 rotates at high speed, cutting weeds through the cutter 15.

[0025] The design was further optimized by installing multiple cutters 15 at equal intervals on the bottom surface of the weeding disc 3.

[0026] Multiple cutters 15, evenly spaced on the bottom surface of the weeding disc 3, rotate with the disc to cut weeds at multiple points, ensuring that the weeds are completely cut off. The evenly spaced cutters 15 increase the weed coverage and avoid missed cuts; the multi-point cutting enhances the ability to damage the root system of perennial weeds and reduces regeneration.

[0027] In a further optimized design, the second drive unit includes a first electric telescopic rod 16 fixedly connected to the bottom surface of the first connecting plate 1. The output end of the first electric telescopic rod 16 is fixedly connected to the top surface of the second connecting plate 4. Guide posts 17 are symmetrically fixedly connected to both sides of the bottom surface of the first connecting plate 1. The guide posts 17 are slidably connected to the second connecting plate 4. A baffle 18 is fixedly connected to the bottom surface of the guide posts 17. The baffle 18 is located below the second connecting plate 4.

[0028] The first electric telescopic rod 16 extends and retracts to adjust the height of the second connecting plate 4, and the guide column 17 ensures the stability of the second connecting plate 4 during the lifting process; the baffle 18 is used to limit the movement of the second connecting plate 4. The fertilization depth can be flexibly adjusted according to the hardness of the saline-alkali soil or the needs of the crop; the design of the guide column 17 and the baffle 18 avoids the mechanism from jamming and improves the continuity of operation.

[0029] The scheme is further optimized. The trenching part includes multiple first connecting rods 19 that are fixed at equal intervals to the bottom surface of the second connecting plate 4. The bottom surface of the first connecting rods 19 is fixed with trenching teeth 20.

[0030] Multiple first connecting rods 19 on the bottom surface of the second connecting plate 4 drive the trenching teeth 20 to insert into the soil, forming continuous and uniform trenches during the forward movement. The spaced trenching teeth 20 ensure consistent trench depth and spacing, providing precise space for fertilization; the trenching teeth 20 have a rigid structure, adapting to saline-alkali soil layers and preventing breakage.

[0031] The scheme is further optimized. The fertilizer application section includes multiple first connecting pipes 21 that are equally spaced on the second connecting plate 4. The bottom surface of the first connecting pipe 21 is provided with a discharge port 22. The top surface of the first connecting pipe 21 is fixedly connected to and connected to a flexible hose 23. The flexible hose 23 passes through the first connecting plate 1 and is connected to the quantitative dispensing section.

[0032] The fertilizer in the fertilizer box 5 enters the flexible hose 23 through the quantitative dispensing part, and then is discharged into the groove formed by the trenching part through the discharge port 22 at the bottom of the first connecting pipe 21.

[0033] In a further optimized design, a fourth connecting plate 24 is fixedly connected inside the fertilizer box 5. Multiple transition boxes 25 are evenly spaced at the bottom of the fourth connecting plate 24. The transition boxes 25 are connected to the fourth connecting plate 24, and the bottom of the transition boxes 25 is connected to the flexible hose 23. A dispensing seat 26 is rotatably connected inside the transition box 25. Multiple grooves 27 are evenly spaced around the surface of the dispensing seat 26. A first motor 28 is fixedly connected to the inner wall of the fertilizer box 5. The output shaft of the first motor 28 is fixedly connected to a fourth connecting shaft 29. The fourth connecting shaft 29 is fixedly connected to multiple dispensing seats 26 respectively. The first motor 28 is located below the fourth connecting plate 24.

[0034] The first motor 28 drives the fourth connecting shaft 29 to rotate, causing multiple dispensing seats 26 to rotate synchronously. Each time the groove 27 on the surface of the dispensing seat 26 rotates to below the transition box 25, it intercepts a fixed amount of fertilizer and drops it into the transition box 25, and then delivers it to the fertilization section through the flexible hose 23. The amount of fertilizer applied is controlled by the capacity of the groove 27 on the dispensing seat 26, achieving precise quantitative dispensing and avoiding fertilizer waste. The design of multiple transition boxes 25 and dispensing seats 26 ensures simultaneous fertilization at multiple points, improving operational efficiency.

[0035] The scheme is further optimized by fixing a vibration motor 30 to the bottom of the fertilizer box 5 and slidingly connecting a fifth connecting plate 31 to the bottom of the fertilizer box 5. The vibration motor 30 is connected to the fifth connecting plate 31 in a transmission connection, and the fifth connecting plate 31 abuts against the flexible hose 23.

[0036] The vibrating motor 30 vibrates the flexible hose 23 to prevent fertilizer blockage; the fifth connecting plate 31 slides under vibration to break up the clumps of fertilizer and ensure that the fertilizer moves smoothly downward in the flexible hose 23.

[0037] The design is further optimized so that the soil covering mechanism includes second connecting rods 32 symmetrically fixed to the bottom surface of the first connecting plate 1, and a soil covering plate 33 rotatably connected between the bottoms of the two second connecting rods 32. As the device moves forward, the soil covering plate 33 at the bottom of the two second connecting rods 32 pushes the loose soil after trenching back into the trench and covers it with fertilizer.

[0038] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for integrated weed control and fertilization in saline-alkali land, characterized in that: The utility model provides a kind of weeding and fertilizing device, including first connecting plate (1), one end of the first connecting plate (1) is connected with traction equipment, the bottom of the first connecting plate (1) is symmetrically provided with traction wheel (2), the bottom of the first connecting plate (1) is rotatably connected with weeding mechanism near one end of the traction equipment, the weeding mechanism includes the weeding disc (3) rotatably connected with the bottom surface of the first connecting plate (1), the weeding disc (3) is drivingly connected with first driving part, the first driving part is drivingly connected with the traction wheel (2) near the traction equipment, the bottom of the first connecting plate (1) is provided with fertilizing mechanism on the side away from the weeding disc (3), the fertilizing mechanism includes the second driving part fixed on the bottom of the first connecting plate (1), the second driving part is fixed with second connecting plate (4), the second connecting plate (4) is respectively provided with ditching part and fertilizing part, the top surface of the first connecting plate (1) is fixed with fertilizer tank (5), the fertilizer tank (5) is provided with quantitative feeding part, the quantitative feeding part is communicated with the fertilizing part, the bottom of the first connecting plate (1) is provided with soil covering mechanism on the side away from the fertilizing part.

2. The device according to claim 1, wherein the device is characterized by: First connecting shaft (6) is fixed between the two traction wheels (2) near the traction equipment, the first connecting shaft (6) is provided with first bevel gear (7), the second connecting shaft (8) is provided above the first bevel gear (7), the second connecting shaft (8) is rotatably connected with the bottom surface of the first connecting plate (1), the second connecting shaft (8) is fixed with second bevel gear (9) on the bottom surface, the second bevel gear (9) is engaged with the first bevel gear (7), the second connecting shaft (8) is rotatably connected with the third connecting plate (10), the third connecting plate (10) is located above the second bevel gear (9), the second connecting shaft (8) is fixed with first pulley (11), the first pulley (11) is drivingly connected with the first driving part by belt (12).

3. The device according to claim 2, wherein the device is characterized by: The first driving part includes third connecting shaft (13) rotatably connected on the bottom surface of the first connecting plate (1), the third connecting shaft (13) is installed with second pulley (14), the second pulley (14) is drivingly connected with the belt (12), the bottom of the third connecting shaft (13) is fixed with the weeding disc (3).

4. The device according to claim 1, wherein the device is characterized by: The bottom surface of the weeding disc (3) is provided with a plurality of cutters (15) at equal intervals.

5. The device according to claim 1, wherein the device is characterized by: The second driving part includes first electric telescopic rod (16) fixed on the bottom surface of the first connecting plate (1), the output end of the first electric telescopic rod (16) is fixed with the top surface of the second connecting plate (4), the bottom surface of the first connecting plate (1) is symmetrically fixed with guide column (17), the guide column (17) is slidingly connected with the second connecting plate (4), the bottom surface of the guide column (17) is fixed with baffle (18), the baffle (18) is located below the second connecting plate (4).

6. The device according to claim 1, wherein the device is characterized by: The furrowing part comprises a plurality of first connecting rods (19) fixed at equal intervals on the bottom surface of the second connecting plate (4), and the bottom surface of the first connecting rod (19) is fixed with furrowing teeth (20).

7. The device according to claim 1, wherein the device is characterized by: The fertilizer applying part comprises a plurality of first connecting pipes (21) arranged at equal intervals on the second connecting plate (4), the bottom surface of the first connecting pipe (21) is provided with a discharge port (22), the top surface of the first connecting pipe (21) is fixedly connected with a flexible hose (23) in communication, the flexible hose (23) penetrates through the first connecting plate (1), and the flexible hose (23) communicates with the quantitative feeding part.

8. The device according to claim 7, wherein the device is characterized by: The fertilizer box (5) is fixedly connected with a fourth connecting plate (24), a plurality of transition boxes (25) are arranged at equal intervals on the bottom of the fourth connecting plate (24), the transition boxes (25) communicate with the fourth connecting plate (24), the bottom of the transition box (25) communicates with the flexible hose (23), the transition box (25) is rotatably connected with a feeding seat (26), a plurality of grooves (27) are arranged at equal intervals in the circumference of the surface of the feeding seat (26), a first motor (28) is fixedly connected to the inner wall of the fertilizer box (5), a fourth connecting shaft (29) is fixedly connected to the output shaft of the first motor (28), and the fourth connecting shaft (29) is fixedly connected with a plurality of feeding seats (26), respectively. The first motor (28) is located below the fourth connecting plate (24). 9.The device of claim 7, wherein the device further comprises a plurality of wheels. The bottom of the fertilizer box (5) is fixedly connected with a vibration motor (30), the bottom of the fertilizer box (5) is slidably connected with a fifth connecting plate (31), the vibration motor (30) is in transmission connection with the fifth connecting plate (31), and the fifth connecting plate (31) abuts against the flexible hose (23). 10.The device according to claim 1, characterized in that: The covering mechanism comprises a second connecting rod (32) fixed symmetrically on the bottom surface of the first connecting plate (1), and a covering plate (33) rotatably connected between the bottom portions of the two second connecting rods (32).