Corn planting and fertilizing device

Abstract

The invention relates to the technical field of fertilization, in particular to a corn planting fertilization device which comprises a traction liquid supply mounting mechanism, a multi-layer adjusting type fertilization mechanism and a depth adjusting type ground breaking mechanism, and the multi-layer adjusting type fertilization mechanism further comprises a passive stirring synchronous fertilization module. The device provided by the invention has high adaptability and flexibility, and can adjust the spacing and depth of fertilization layers so as to meet the optimal fertilization requirements of different fertilizers; the efficient and synchronous fertilizing and stirring functions are achieved, soil breaking, stirring and fertilizing can be automatically completed in the moving process, the fertilizer uniformity is improved, and waste is reduced; the depth adjusting type ground breaking mechanism ensures that the operation depth is stable and reliable; the structure is optimally designed, the fusiform section and the cambered surface baffle effectively disperse traction force and protect internal pipelines, and durability is high; in addition, the soil breaking trafficability is good, external equipment is easy and convenient to connect, and the fertilization efficiency and quality of corn planting are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of fertilization technology, and in particular to a fertilization device for corn planting. Background Technology

[0002] As a major food and cash crop in my country, high and stable yields of corn are crucial for ensuring national food security and promoting agricultural development. Among the many aspects of corn growth management, scientific fertilization is a core factor affecting its yield and quality. Modern agronomic research shows that different types of fertilizers have their optimal application depths due to differences in nutrient release characteristics and crop root distribution. For example, shallow fertilization facilitates seedling absorption, while deep fertilization promotes root development, improves fertilizer utilization, and enhances crop resistance. However, traditional fertilization methods, including manual application and early mechanical fertilization, generally suffer from problems such as uniform fertilization depth and uneven fertilizer distribution, making it difficult to meet the needs of precise stratified fertilization. This leads to significant fertilizer waste, low utilization rates, and even soil compaction and non-point source pollution.

[0003] Currently, common mechanical fertilization devices on the market have revealed many shortcomings in practical applications. First, they suffer from serious deficiencies in terms of precision and adaptability. Most devices use fixed-depth fertilization furrow openers, whose depth is difficult to adjust flexibly during operation once set. This prevents the same equipment from adapting to different fertilizer types and agronomic requirements at different growth stages, resulting in rigid fertilization strategies. Farmers often need to perform multiple operations or purchase different equipment to achieve tiered fertilization, significantly increasing labor intensity and production costs while reducing operational efficiency, failing to meet the demands of modern agriculture for precise and personalized fertilization.

[0004] Secondly, existing fertilization methods are crude, resulting in poor fertilizer-soil mixing. Many devices merely "place" fertilizer into the soil rather than "integrate" it. Fertilizer is often concentrated in strips or dots, failing to mix thoroughly and evenly with soil particles. This concentrated fertilizer environment easily causes root and seedling burn. Furthermore, due to the small contact area with the soil surface, nutrient release and diffusion efficiency is low, leading to uneven root absorption and severely limiting fertilizer effectiveness. Although some devices attempt to incorporate mixing functions, their complex structures and reliance on external power increase manufacturing costs and failure rates. Moreover, the uniformity and synchronization of mixing still need improvement.

[0005] Finally, the existing fertilization devices have weak control over soil breaking and depth stability. The design of the furrow opener is sensitive to soil conditions. When encountering hard, compacted, or root-entangled soil, it is prone to problems such as soil clogging, blockage, or inconsistent depth, resulting in inconsistent fertilization depth. This instability directly undermines the uniformity of fertilization operations, causing uneven growth of corn plants and affecting the overall yield. In addition, the high resistance to soil breaking also leads to high traction load and increased energy consumption.

[0006] The present invention aims to solve the technical problems existing in the prior art, and to this end, proposes a corn planting and fertilization device. Summary of the Invention

[0007] The purpose of this invention is to provide a corn planting and fertilization device to solve the technical problems existing in the prior art.

[0008] By adopting the above technical solution, the present invention has the following beneficial effects: The present invention provides a corn planting fertilization device, comprising: The traction fluid supply installation mechanism includes a bent mounting column with a shuttle-shaped cross section. A traction mounting ring is provided at the upper end of the bent mounting column, a traction reinforcing column is provided on one side of the traction mounting ring, a fixed mounting plate is provided at the end of the traction reinforcing column, and fixed mounting rings are symmetrically provided at both ends of the fixed mounting plate. The multi-layer adjustable fertilization mechanism includes three sets of passive soil-breaking plates arranged in a gradient along the inclined direction below the bent mounting column. The cross-section of the passive soil-breaking plate is also spindle-shaped, and both ends of the passive soil-breaking plate are provided with cutting parts. Depth-adjustable soil-breaking mechanism, including an arc-shaped plowing column.

[0009] As a further embodiment of the present invention: a flow guiding installation sleeve is provided through the inside of the bent mounting column, the upper end of the flow guiding installation sleeve extends out of the bent mounting column, and three sets of liquid supply pipes are provided inside the flow guiding installation sleeve. The liquid supply pipes extend out from the upper end of the flow guiding installation sleeve, and each end of the liquid supply pipe extending out of the flow guiding installation sleeve is provided with a connecting flange.

[0010] As a further aspect of the present invention: an angle adjustment column is provided between the middle positions of adjacent passive soil breaking plates, and an angle adjustment shaft is symmetrically provided at both ends of the angle adjustment column. The angle adjustment shafts are all installed on the passive soil breaking plates through a fixed mounting frame.

[0011] As a further embodiment of the present invention: one side of the angle adjustment column is symmetrically provided with arc-shaped baffles in conjunction with the angle adjustment shafts at both ends.

[0012] As a further aspect of the present invention: a connecting mounting column is provided at the upper end of each passive soil-breaking plate between the fixed mounting frames, and several passive mixing and synchronous fertilization modules are provided at equal intervals on the passive soil-breaking plates on both sides of the connecting mounting column.

[0013] As a further aspect of the present invention: the passive mixing synchronous fertilization module includes a synchronous flow guiding installation cylinder horizontally embedded in the passive soil breaking plate, with limit rotation installation sleeves symmetrically arranged at both ends of the synchronous flow guiding installation cylinder, and a uniform flow guiding cavity provided in the passive soil breaking plate below the connecting installation column, with connecting installation holes provided through the upper and lower ends of the uniform flow guiding cavity, and the upper and lower ends of the connecting installation holes extending from the upper end of the connecting installation column and the lower end of the passive soil breaking plate, respectively.

[0014] As a further aspect of the present invention: symmetrical conveying guide holes are provided inside the passive soil-breaking plates at both ends of the uniform flow guiding cavity, and the conveying guide holes are sequentially connected to the synchronous flow guiding installation cylinder on the passive soil-breaking plate.

[0015] As a further aspect of the present invention: a rotating guide tube is rotatably provided inside the synchronous guide tube. A passive drive shaft is coaxially provided at one end of the rotating guide tube, and a synchronous rotating column is coaxially provided at the other end of the rotating guide tube. The passive drive shaft and the synchronous rotating column extend from the limiting rotating mounting sleeves at both ends of the synchronous guide tube, and a limiting rotating ring is provided on the outer side of the passive drive shaft and the synchronous rotating column in conjunction with the limiting rotating mounting sleeve.

[0016] As a further aspect of the present invention: a tapered passive spiral plate is provided on the outside of the passive drive shaft extending from the limiting rotation mounting sleeve, and the end of the passive drive shaft is a pointed part.

[0017] As a further embodiment of the present invention: a conical fertilization spiral plate is provided on the outside of the synchronous rotating column extending from the limiting rotating mounting sleeve, a fertilization guiding cavity communicating with the rotating guiding cylinder is provided inside the synchronous rotating column, and a plurality of fertilization holes are uniformly provided on the outside of the synchronous rotating column extending from the limiting rotating mounting sleeve.

[0018] As a further aspect of the present invention: the rotating guide cylinder has a plurality of stirring guide holes arranged at equal angles on its cylinder wall.

[0019] As a further aspect of the present invention: the angle adjustment column is provided with a pipe installation cavity inside, and telescopic installation cylinders are provided at both ends of the pipe installation cavity. The upper telescopic installation cylinder is connected to the connection installation hole on the lower side of the passive soil breaking plate, and the lower telescopic installation cylinder is connected to the connection installation hole on the upper side of the connection installation column. The flow guiding installation sleeve passes downward through each pipe installation cavity and the telescopic installation cylinders at both ends in sequence, and the liquid supply pipes in the flow guiding installation sleeve extend out of the corresponding uniform flow guiding cavity.

[0020] As a further embodiment of the present invention: the upper end of the arc-shaped plowing column is connected to the lowermost passive soil-breaking plate, the lower end of the arc-shaped plowing column is provided with a soil-breaking tip, and the two ends of the soil-breaking tip are symmetrically provided with driving shafts, and the ends of the driving shafts are each provided with an adjusting soil-breaking plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. High adaptability and flexibility: The angle adjustment column and angle adjustment shaft of the multi-layer adjustable fertilization mechanism can flexibly adjust the spacing between the passive soil breaking plates, thereby adapting to the requirements of different fertilizer types and their optimal fertilization depth in corn planting, ensuring fertilization accuracy and crop growth needs.

[0022] 2. Highly efficient simultaneous fertilization and mixing: The passive mixing and synchronous fertilization module operates automatically during the device's movement. The conical passive spiral plate first breaks up the soil, and then the conical fertilization spiral plate stirs the soil and applies fertilizer simultaneously. The fertilizer is fully mixed through the stirring guide holes of the rotating guide cylinder, improving fertilizer uniformity and fertilization quality, and reducing fertilizer waste.

[0023] 3. Adjustable depth and stable ground breaking: The depth-adjustable soil-breaking mechanism achieves flexible adjustment of soil-breaking depth through the cooperation of the arc-shaped plowing column, soil-breaking tip, and adjustable soil-breaking plate. It can also move stably at the set depth, ensuring the consistency and reliability of fertilization operations under different soil conditions and reducing fertilization resistance.

[0024] 4. Structural optimization and durability: The traction fluid supply installation mechanism uses a bent mounting column with a spindle-shaped cross section and reinforcing components to effectively disperse traction force and improve overall stability; the arc-shaped baffle protects the internal conduit from soil compression, prevents conduit blockage or breakage, and extends the service life of the device.

[0025] 5. Accessibility and ease of operation: The cutting section and conical spiral design of the passive soil-breaking plate enhance the device's soil-breaking ability and passability, making it suitable for various terrains; the external traction equipment and liquid supply equipment are easy to connect, supporting continuous operation and greatly improving the efficiency of corn planting and fertilization. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of a corn planting and fertilization device.

[0028] Figure 2 This is a partial three-dimensional structural diagram of a corn planting and fertilization device.

[0029] Figure 3 Figure 2 An enlarged schematic diagram of point a in the middle.

[0030] Figure 4 This is a three-dimensional structural diagram of the passive soil-breaking plate in a corn planting and fertilization device.

[0031] Figure 5 This is a partial cross-sectional schematic diagram of the passive soil-breaking plate in a corn planting and fertilization device.

[0032] Figure 6 for Figure 5 Enlarged schematic diagram of point b in the middle.

[0033] Figure 7 This is a partial cross-sectional schematic diagram of a passive soil-breaking plate in a uniform flow guiding cavity in a corn planting and fertilization device.

[0034] Figure 8 for Figure 7 Enlarged diagram of point c in the middle.

[0035] Figure 9 This is a three-dimensional structural diagram of a passive drive shaft, a rotating guide cylinder, and a synchronous rotating column in a corn planting and fertilization device.

[0036] Figure 10 for Figure 9 A partial sectional view.

[0037] Figure 11 for Figure 10 A magnified view of point d in the middle.

[0038] Figure 12 This is a half-sectional schematic diagram of an angle adjustment column in a corn planting and fertilization device.

[0039] 1-Bent mounting column, 2-Traction mounting ring, 3-Traction reinforcing column, 4-Passive soil-breaking plate, 5-Angle adjusting column, 6-Arc-shaped plowing column, 7-Drive shaft, 8-Adjustable soil-breaking blade, 9-Soil-breaking tip, 10-Fixed mounting plate, 11-Fixed mounting ring, 12-Flow guiding mounting sleeve, 13-Liquid supply pipe, 14-Connecting mounting column, 15-Passive drive shaft, 16-Synchronous flow guiding mounting cylinder, 17-Connecting mounting hole, 18-Conical passive spiral Plate, 19-Conical fertilization spiral plate, 20-Limiting rotating mounting sleeve, 21-Synchronous rotating column, 22-Fertilization hole, 23-Limiting rotating ring, 24-Rotating guide tube, 25-Stirring guide hole, 26-Conveying guide hole, 27-Uniform guide cavity, 28-Fertilization guide cavity, 29-Arc surface baffle, 30-Telescopic mounting cylinder, 31-Angle adjusting shaft, 32-Pipe mounting cavity, 33-Fixed mounting bracket, 34-Cutting part, 35-Tip part. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0042] Example 1, please refer to Figure 1 , Figure 2 In this embodiment of the invention, a corn planting fertilization device includes: a traction liquid supply installation mechanism, a multi-layer adjustable fertilization mechanism, and a depth adjustable soil breaking mechanism. The multi-layer adjustable fertilization mechanism further includes a passive stirring synchronous fertilization module.

[0043] By adjusting the spacing between the passive stirring synchronous fertilization modules of the multi-layer adjustable fertilization mechanism, the requirements of the corn fertilization type and the optimal fertilization depth of each fertilizer can be adapted. Then, the traction liquid supply installation mechanism is connected to different external fertilizer liquid supply equipment. At the same time, the traction liquid supply installation mechanism is connected to the external traction equipment. The external traction equipment pulls the device to move. The depth-adjustable soil breaking mechanism first completes the soil breaking and sinking. After reaching a certain depth, it maintains this depth and moves, so that the passive mixing synchronous fertilization module can carry out fertilization operations synchronously on soil at different depths as it moves.

[0044] Example 2, based on Example 1, please refer to... Figures 1-3 In this embodiment of the invention, the traction fluid supply installation mechanism includes a bent installation column 1, the cross section of the bent installation column 1 is spindle-shaped, a traction installation ring 2 is provided at the upper end of the bent installation column 1, a traction reinforcing column 3 is provided on one side of the traction installation ring 2, a fixed installation plate 10 is provided at the end of the traction reinforcing column 3, and fixed installation rings 11 are symmetrically provided at both ends of the fixed installation plate 10. A flow guide sleeve 12 is provided inside the bent mounting column 1. The upper end of the flow guide sleeve 12 extends out of the bent mounting column 1. Three sets of liquid supply pipes 13 are provided inside the flow guide sleeve 12. The liquid supply pipes 13 extend out from the upper end of the flow guide sleeve 12, and each end of the liquid supply pipe 13 extending out of the flow guide sleeve 12 is provided with a connecting flange.

[0045] The fixed mounting plate 10 and its fixed mounting ring 11 are connected to the external traction equipment. The traction force is transmitted to the bending mounting column 1 through the traction reinforcing column 3 and the traction mounting ring 2. At the same time, the three sets of liquid supply pipes 13 are connected to the external fertilizer liquid supply equipment through the connecting flange set at the starting end. The fertilizer can be pure liquid fertilizer or a mixture of crushed solid fertilizer.

[0046] Example 3, based on Example 1, please refer to... Figures 1-12 In this embodiment of the invention, the multi-layer adjustable fertilization mechanism includes three sets of passive soil-breaking plates 4 arranged in a gradient along the inclined direction below the bent mounting column 1. The cross-section of the passive soil-breaking plate 4 is also spindle-shaped, and both ends of the passive soil-breaking plate 4 are provided with cutting parts 34. The cutting parts 34 can improve the passability of the passive soil-breaking plate 4. An angle adjustment column 5 is provided between the middle positions of adjacent passive soil breaking plates 4. An angle adjustment shaft 31 is symmetrically provided at both ends of the angle adjustment column 5. The angle adjustment shaft 31 is installed on the passive soil breaking plate 4 through a fixed mounting bracket 33. An arc baffle 29 is symmetrically provided on one side of the angle adjustment column 5 in conjunction with the angle adjustment shaft 31 at both ends. The upper end of the passive soil breaking plate 4 between the fixed mounting frames 33 is provided with a connecting mounting column 14, and several passive mixing and synchronous fertilization modules are provided at equal intervals on the passive soil breaking plate 4 on both sides of the connecting mounting column 14. The passive mixing and synchronous fertilization module includes a synchronous flow guiding installation cylinder 16 horizontally embedded on a passive soil breaking plate 4. The synchronous flow guiding installation cylinder 16 has symmetrically arranged limit rotation installation sleeves 20 at both ends. A uniform flow guiding cavity 27 is provided in the passive soil breaking plate 4 below the connecting installation column 14. The upper and lower ends of the uniform flow guiding cavity 27 are provided with connecting installation holes 17. The upper and lower ends of the connecting installation holes 17 extend from the upper end of the connecting installation column 14 and the lower end of the passive soil breaking plate 4, respectively. Conveying guide holes 26 are symmetrically arranged in the passive soil breaking plate 4 at both ends of the uniform flow guiding cavity 27. The conveying guide holes 26 are connected to the synchronous flow guiding installation cylinder 16 on the passive soil breaking plate 4 in sequence. The synchronous flow guide installation cylinder 16 is rotatably equipped with a rotating flow guide cylinder 24. A passive drive shaft 15 is coaxially provided at one end of the rotating flow guide cylinder 24, and a synchronous rotating column 21 is coaxially provided at the other end of the rotating flow guide cylinder 24. The passive drive shaft 15 and the synchronous rotating column 21 extend from the limiting rotating installation sleeves 20 at both ends of the synchronous flow guide installation cylinder 16, and the outer sides of the passive drive shaft 15 and the synchronous rotating column 21 are equipped with limiting rotating rings 23 in cooperation with the limiting rotating installation sleeves 20. A conical passive spiral plate 18 is provided on the outer side of the passive drive shaft 15 extending out of the limiting rotating installation sleeve 20, and the end of the passive drive shaft 15 is a pointed tip 35. A conical fertilizer spiral plate 19 is provided on the outside of the synchronous rotating column 21 extending from the limiting rotating mounting sleeve 20. The inside of the synchronous rotating column 21 is provided with a fertilizer guiding cavity 28 communicating with the rotating guide cylinder 24. A plurality of fertilizer holes 22 are evenly provided on the outside of the synchronous rotating column 21 extending from the limiting rotating mounting sleeve 20. A plurality of stirring guide holes 25 are provided at equal angles on the cylinder wall of the rotating guide cylinder 24. The angle adjustment column 5 has a pipe installation cavity 32 inside. Both ends of the pipe installation cavity 32 are provided with telescopic installation cylinders 30. The upper telescopic installation cylinder 30 is connected to the connection installation hole 17 on the lower side of the passive soil breaking plate 4, and the lower telescopic installation cylinder 30 is connected to the connection installation hole 17 on the upper side of the connection installation column 14. The flow guiding installation sleeve 12 passes downward through each pipe installation cavity 32 and the telescopic installation cylinders 30 at both ends in sequence. The liquid supply pipe 13 in the flow guiding installation sleeve 12 extends out in the corresponding uniform flow guiding cavity 27.

[0047] The initial deflection angle of the angle adjustment column 5 is changed in advance by adjusting the angle adjustment shaft 31, thereby adjusting the spacing between each passive soil breaking plate 4 and the passive mixing and synchronous fertilization module on it, and thus adjusting the fertilization depth of each passive soil breaking plate 4. The passive soil-breaking plate 4 with its inclined gradient setting can reduce the difficulty of subsequent soil breaking and fertilization, and improve the efficiency and quality of fertilization. The curved baffle prevents the soil from directly squeezing the telescopic installation cylinder 30 during movement, thus preventing deformation, blockage, and breakage of the telescopic installation cylinder 30 and its internal guide sleeve 12 and liquid supply pipe 13.

[0048] When the passive soil-breaking plate 4 moves to the corresponding depth, the conical passive spiral plate 18 rotates in the soil along with the passive drive shaft 15. At the same time, the conical fertilization spiral plate 19 also rotates passively, causing the synchronous rotating column 21 to generate torque in the same direction. With the cooperation of the limiting rotating ring 23 and the limiting rotating mounting sleeve 20, the passive drive shaft 15, the synchronous rotating column 21 and the rotating guide tube 24 are ensured to rotate stably. Meanwhile, the liquid supply pipes 13 inside the flow guide sleeve 12 extend into the corresponding uniform flow guide chambers 27, and introduce the externally supplied fertilizer into the uniform flow guide chambers 27. The fertilizer is then introduced into each synchronous flow guide cylinder 16 through the conveying guide hole 26. The fertilizer enters the rotating flow guide cylinder 24 and the fertilizer application guide chamber 28 through the rotating flow guide cylinder 24 and the stirring flow guide hole 25 on it. With the rotation of the conical fertilizer application spiral plate 19, the fertilizer is discharged from the fertilizer application hole 22 and mixed with the soil stirred by the conical fertilizer application spiral plate 19 to complete the fertilization operation at different depths. When the rotating guide cylinder 24 and its stirring guide hole 25 rotate, they work together with the synchronous guide installation cylinder 16 to further stir and mix the incoming fertilizer, thereby improving the quality of the fertilizer. The conical passive spiral plate 18 and the tip 35 agitate and break up the soil before the conical fertilization spiral plate 19, which facilitates subsequent fertilization mixing and reduces the difficulty of fertilization operations.

[0049] Example 4, based on Example 1, please refer to... Figure 1 , Figure 2 In this embodiment of the invention, the depth-adjustable soil-breaking mechanism includes an arc-shaped plowing column 6, the upper end of which is connected to the lowest passive soil-breaking plate 4, and a soil-breaking tip 9 at the lower end of the arc-shaped plowing column 6. Drive shafts 7 are symmetrically arranged at both ends of the soil-breaking tip 9, and adjustable soil-breaking plates 8 are provided at the ends of the drive shafts 7.

[0050] First, by adjusting the angle of the rotating shaft 31, the angle of the lowest passive soil-breaking plate 4 and the arc-shaped plowing column 6 is adjusted. When the external equipment is adjusted for traction, the soil-breaking tip 9 can be inserted into the ground at a certain angle. After the soil-breaking tip 9 is inserted into the ground, the lowest passive soil-breaking plate 4 is reset and rotated. As the traction moves, the device is submerged into the ground at a certain angle and moves stably at a certain depth under the action of the soil-breaking plate 8, thus completing the corn fertilization operation. By driving the rotating shaft 7, the angle of the soil-breaking blade 8 can be changed, thus achieving adaptive adjustment for fertilization at different depths.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A corn planting and fertilization device, characterized in that, include: The traction fluid supply installation mechanism includes a bent installation column with a shuttle-shaped cross section. A flow guide installation sleeve is installed through the inside of the bent installation column. The upper end of the flow guide installation sleeve extends out of the bent installation column. Three sets of fluid supply pipes are installed inside the flow guide installation sleeve. A multi-layer adjustable fertilization mechanism includes three sets of passive soil-breaking plates arranged in a gradient along the inclined direction below the bent mounting column. An angle adjustment column is set between the middle positions of adjacent passive soil-breaking plates. An angle adjustment shaft is symmetrically set at both ends of the angle adjustment column. The angle adjustment shaft is installed on the passive soil-breaking plate through a fixed mounting frame. A connecting mounting column is set at the upper end of the passive soil-breaking plate between the fixed mounting frames. Several passive mixing synchronous fertilization modules are evenly spaced on the passive soil-breaking plates on both sides of the connecting mounting column. The passive mixing and synchronous fertilization module includes a synchronous flow guiding installation cylinder horizontally embedded in a passive soil breaking plate, and limit rotation installation sleeves are symmetrically provided at both ends of the synchronous flow guiding installation cylinder. The depth-adjustable soil-breaking mechanism includes an arc-shaped ploughing column, the upper end of which is connected to the lowest passive soil-breaking plate. The lower end of the arc-shaped ploughing column is provided with a soil-breaking tip, and drive shafts are symmetrically arranged at both ends of the soil-breaking tip. Adjustable soil-breaking plates are provided at the ends of the drive shafts.

2. The corn planting and fertilization device according to claim 1, characterized in that, The upper end of the bent mounting column is provided with a traction mounting ring, one side of the traction mounting ring is provided with a traction reinforcing column, the end of the traction reinforcing column is provided with a fixing mounting plate, and the two ends of the fixing mounting plate are symmetrically provided with fixing mounting rings.

3. The corn planting and fertilization device according to claim 1, characterized in that, The liquid supply pipe extends from the upper end of the guide installation sleeve, and each end of the liquid supply pipe extending out of the guide installation sleeve is provided with a connecting flange.

4. The corn planting and fertilization device according to claim 1, characterized in that, The passive soil-breaking plate also has a spindle-shaped cross section, and both ends of the passive soil-breaking plate are provided with cutting parts.

5. A corn planting and fertilization device according to claim 1, characterized in that, One side of the angle adjustment column is symmetrically equipped with arc-shaped baffles that match the angle adjustment shafts at both ends.

6. The corn planting and fertilization device according to claim 1, characterized in that, A uniform flow guiding cavity is provided inside the passive soil breaking plate below the connecting installation column. The upper and lower ends of the uniform flow guiding cavity are provided with connecting installation holes. The upper and lower ends of the connecting installation holes extend from the upper end of the connecting installation column and the lower end of the passive soil breaking plate, respectively. Conveying guide holes are symmetrically provided inside the passive soil breaking plate at both ends of the uniform flow guiding cavity. The conveying guide holes are connected to the synchronous flow guiding installation cylinder on the passive soil breaking plate in sequence.

7. A corn planting and fertilization device according to claim 6, characterized in that, The synchronous flow guide installation cylinder is rotatably equipped with a rotating flow guide cylinder inside. A passive drive shaft is coaxially provided at one end of the rotating flow guide cylinder, and a synchronous rotating column is coaxially provided at the other end of the rotating flow guide cylinder. The passive drive shaft and the synchronous rotating column extend from the limiting rotating installation sleeves at both ends of the synchronous flow guide installation cylinder, and the outer sides of the passive drive shaft and the synchronous rotating column are equipped with limiting rotating rings in conjunction with the limiting rotating installation sleeves.

8. A corn planting and fertilization device according to claim 7, characterized in that, A tapered passive spiral plate is provided on the outside of the passive drive shaft that extends out of the limiting rotation mounting sleeve, and the end of the passive drive shaft is a pointed part.

9. A corn planting and fertilization device according to claim 8, characterized in that, A conical fertilization spiral plate is provided on the outside of the synchronous rotating column extending from the limiting rotating mounting sleeve. A fertilization guiding cavity communicating with the rotating guiding cylinder is provided inside the synchronous rotating column. Several fertilization holes are evenly provided on the outside of the synchronous rotating column extending from the limiting rotating mounting sleeve. Several stirring guiding holes are provided at equal angles on the cylinder wall of the rotating guiding cylinder.

10. A corn planting fertilization device according to claim 9, characterized in that, The angle adjustment column has a pipe installation cavity inside, and telescopic installation cylinders are provided at both ends of the pipe installation cavity. The upper telescopic installation cylinder is connected to the connection installation hole on the lower side of the passive soil breaking plate, and the lower telescopic installation cylinder is connected to the connection installation hole on the upper side of the connection installation column. The flow guiding installation sleeve passes downward through each pipe installation cavity and the telescopic installation cylinders at both ends in sequence. The liquid supply pipes in the flow guiding installation sleeve extend out of the corresponding uniform flow guiding cavity.

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