Fertilizing device for corn and soybean strip-shaped composite planting

By designing an adjustable-spacing fertilization device and a zoned storage system, the problem of different nutrient requirements in corn-soybean strip intercropping was solved, achieving precision fertilization, improving operational efficiency and reducing costs.

CN224124596UActive Publication Date: 2026-04-17南充市植保植检站 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
南充市植保植检站
Filing Date
2025-05-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing agricultural fertilization machinery is insufficient to meet the precision fertilization needs of corn-soybean strip intercropping, especially due to the extended fertilization time and increased costs caused by the different nutrient requirements of corn and soybeans.

Method used

A fertilization device for corn-soybean strip intercropping was designed, comprising an adjustable-spacing fertilization mechanism and a storage box, which can store different fertilizers in separate areas and achieve mixed or individual fertilization through corrugated pipes and connecting pipes. Combined with soil loosening and covering components, it ensures the accuracy of fertilization depth and position.

Benefits of technology

It enables precise fertilization of different nutrient requirements in corn-soybean strip intercropping, improves operational efficiency, reduces the cost of manual intervention, and minimizes the risk of fertilization deviation and seedling damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fertilization devices, in particular to a fertilization device for corn and soybean strip-shaped composite planting, and aims to solve the problem that the fertilization operation time is prolonged due to different nutrients required during corn and soybean mixed planting. Comprising a fertilization box, a fixing frame is arranged on one side of the fertilization box in the length direction, a plurality of storage boxes are arranged in the fertilization box, a fertilization mechanism is further arranged at the bottom of the fertilization box, a feeding pipe is arranged on the fertilization box, and a plurality of material holes allowing the feeding pipe to pass through are formed in the bottom face of the fertilization box; wherein the fixing frame is connected with an operating vehicle, and the distance between the fertilizing mechanisms can be adjusted. The fertilization box and the storage box can realize partitioned storage and partitioned feeding of different fertilizers, and the spacing of the fertilization mechanism can be freely adjusted according to different spacing of strip-shaped composite planting of corns and soybeans, so that the fertilization precision and the operation adaptability are improved.
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Description

Technical Field

[0001] This utility model relates to the field of fertilization device technology, specifically to a fertilization device for corn-soybean strip intercropping. Background Technology

[0002] Currently, the strip intercropping model of corn and soybeans is gradually being promoted and applied. This planting method, by planting corn and soybeans at certain intervals, has significant advantages in improving light energy utilization efficiency, increasing field biodiversity, and achieving increased yields and income. However, due to the spatial differences between crop strips and the differences in management methods, many difficulties arise in field management operations such as weeding and fertilization.

[0003] In practical applications, corn and soybeans have different planting depths, different growth rates, and different fertilizer requirements, resulting in differences in their fertilization depth and fertilizer type requirements: corn requires deeper, targeted fertilization to promote root development, while soybeans usually use shallow fertilization or latent fertilization to avoid damaging the roots; soybeans require less or no nitrogen fertilizer as base fertilizer, while corn requires nitrogen fertilizer.

[0004] Existing agricultural fertilization machinery is mostly designed for single crops, with fixed fertilization locations and operating paths, lacking the ability to adapt to the regional management of strip-shaped compound crops. Some machines equipped with weeding and cultivating devices struggle to balance the passage of tall and short crops with precise fertilization locations when passing through crop areas, easily leading to problems such as seedling damage, fertilization deviation, or uneven application. Furthermore, existing cultivators and fertilizer applicators mostly operate on a time-sharing basis, unable to simultaneously complete weeding and fertilization in one operation, increasing the workload and operating costs of field management.

[0005] Therefore, there is an urgent need for agricultural machinery suitable for strip intercropping patterns that can simultaneously weed and apply fertilizer in layers, in order to meet the precision agronomic needs under the coexistence of corn and soybeans, improve operational efficiency, and reduce the cost of manual intervention. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the different nutrient requirements of corn and soybeans in mixed planting lead to longer fertilization time. The purpose is to provide a fertilization device for corn and soybean strip intercropping that can apply fertilizer as needed according to the different nutrient requirements of corn and soybeans, thereby improving work efficiency.

[0007] This utility model is achieved through the following technical solution:

[0008] A fertilization device for corn-soybean strip intercropping includes a fertilizer box, a fixed frame on one side of the fertilizer box along its length, several storage boxes inside the fertilizer box, a fertilization mechanism at the bottom of the fertilizer box, a feeding pipe on the fertilizer box, and several material holes on the bottom surface of the fertilizer box for the feeding pipe to pass through; wherein, the fixed frame is connected to a working vehicle, and the spacing between the fertilization mechanisms is adjustable.

[0009] In the above technical solution, the fertilizer box and storage box can realize the zoned storage and zoned delivery of different fertilizers, and the spacing of the fertilizer application mechanism can be freely adjusted according to the different spacing of corn and soybean strip intercropping, thereby improving the accuracy of fertilization and the adaptability of operation.

[0010] In some alternative technical solutions, the storage box is located on one side of the fertilizer box along its length, and there is a gap between the bottom surface of the storage box and the inner bottom surface of the fertilizer box.

[0011] In the above technical solution, a buffer space is formed between the storage box and the bottom of the box to prevent fertilizer particles from being directly compacted and clogging the bottom fertilization mechanism, while improving the flowability of the material and ensuring a continuous and stable supply of fertilizer to the lower feeding pipe.

[0012] In some alternative technical solutions, a connecting pipe is also provided on the feeding pipe near the storage box, one end of the connecting pipe is connected to the storage box, and the other end of the connecting pipe is connected to the feeding pipe.

[0013] In the above technical solution, the connecting pipe can connect the storage box and the feeding pipe, and the corresponding fertilizer can be mixed as needed.

[0014] In some alternative technical solutions, both the feeding pipe and the connecting pipe are corrugated pipe structures.

[0015] In the above technical solution, the corrugated pipe has good flexibility and anti-clogging performance, which can adapt to complex pipe layout bends, reduce pipeline blockage and wear, and extend the service life of the device.

[0016] In some alternative technical solutions, the fertilization mechanism includes a connecting rod and a soil loosening component. The soil loosening component is located at the bottom end of the connecting rod. Both ends of the bottom surface of the fertilizer box are provided with baffles. A limiting shaft is fixedly connected between the two baffles, and the connecting rod is slidably connected to the limiting shaft.

[0017] In the above technical solution, the position of the connecting rod can be adjusted on the limiting shaft to adapt to the fertilization needs of different fields.

[0018] In some optional technical solutions, the top of the connecting rod is provided with a slider, the slider is provided with a through hole along the axial direction of the limiting shaft, a bushing is provided inside the through hole, the limiting shaft is provided with a first thread, and the inner peripheral wall of the bushing is provided with an internal thread that is adapted to the first thread for threaded connection.

[0019] In the above technical solution, the slider is precisely positioned on the limiting shaft by adjusting the thread. At the same time, the threaded connection also ensures that the connecting rod will not move when the fertilizer applicator is running.

[0020] In some alternative technical solutions, the bushing has protrusions at both ends along its length.

[0021] In the above technical solution, the protrusion acts as a limiter, which can prevent the bushing from loosening and can drive the slider to move.

[0022] In some optional technical solutions, the connecting rod includes a first connecting rod, a second connecting rod, and a transition sleeve. The top end of the first connecting rod is connected to the slider, and a fixed rod is fixedly connected to the bottom of the first connecting rod. The fixed rod is provided with a second thread. The inner circumferential wall of the transition sleeve is provided with an internal thread that is adapted to the second thread for threaded connection. The top surface of the second connecting rod has a through groove facing downwards, and the top surface of the second connecting rod also has a first annular groove facing downwards. The diameter of the first annular groove is larger than the diameter of the through groove. The bottom surface of the first annular groove has a second annular groove. The bottom surface of the transition sleeve is provided with a connecting ring, and the bottom surface of the connecting ring is provided with a rotating ring. The rotating ring is rotatably connected in the second annular groove, and the connecting ring is rotatably connected in the first annular groove.

[0023] In the above technical solution, when it is necessary to adjust the fertilization depth, the second connecting rod can be moved by rotating the transition bushing, thereby controlling the height of the loosening component and changing the fertilization depth.

[0024] In some alternative technical solutions, a soil covering component is symmetrically arranged at the end of the second connecting rod away from the soil loosening component. A limiting ring is provided on the second connecting rod, and the limiting ring is located directly above the two soil covering components. The outlet end of the feeding pipe passes through the limiting ring and is located above the soil covering component.

[0025] In the above technical solution, the soil covering component can backfill the soil in time after fertilization, and the limiting ring ensures that the fertilizer falls accurately from the feeding pipe into the predetermined trench without being blocked by the soil covering component.

[0026] In some optional technical solutions, the bottom of the fertilizer box is provided with several limiting clamps, each of which is located below the material hole, and each of the limiting clamps is connected to the working vehicle through a connecting line.

[0027] In the above technical solution, the limit clamp can control the opening and closing state of the feeding tube during movement.

[0028] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0029] The fertilizer box and storage box in this invention can store different fertilizers to meet the different nutrient requirements of corn and soybeans. In addition, the position and spacing of adjacent connecting rods can be changed by adjusting the slider, so as to adapt to the different spacing of corn and soybeans in different fields. When fertilizing, the height of the second connecting rod can be changed by rotating the transition bushing to control the fertilization depth of the loosening component. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0033] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0034] Figure 4 This is a top view of the present invention;

[0035] Figure 5 This is a cross-sectional view of the present invention;

[0036] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0037] Figure 7 for Figure 5 A magnified view of a section at point C;

[0038] Figure 8 This is a schematic diagram of the fertilizer application mechanism in this utility model.

[0039] The attached diagram shows the markings and corresponding component names:

[0040] 1. Fertilizer box; 11. Storage box; 12. Material hole; 13. Limiting shaft; 14. Feeding pipe; 15. Connecting pipe; 2. Connecting rod; 21. First connecting rod; 22. Second connecting rod; 23. Transition bushing; 3. Soil loosening component; 4. Soil covering component; 5. Sliding block; 51. Bushing; 52. Protrusion; 6. Limiting clamp. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are for explaining the utility model only and are not intended to limit the utility model. It should be noted that this utility model is already in the actual research and development stage.

[0042] Example 1

[0043] like Figures 1 to 8 As shown, this embodiment 1 provides a fertilization device for corn-soybean strip intercropping, including a fertilizer box 1. A fixed frame is provided on one side of the fertilizer box 1 along its length. Several storage boxes 11 are provided inside the fertilizer box 1. A fertilization mechanism is also provided at the bottom of the fertilizer box 1. A feeding pipe 14 is provided on the fertilizer box 1. Several material holes 12 are opened on the bottom surface of the fertilizer box 1 to allow the feeding pipe 14 to pass through. The fixed frame is connected to a working vehicle, and the spacing between the fertilization mechanisms is adjustable.

[0044] like Figures 1 to 5 As shown, the storage box 11 is located on one side of the fertilizer box 1 along its length, and there is a gap between the bottom surface of the storage box 11 and the inner bottom surface of the fertilizer box 1.

[0045] like Figures 4 to 6 As shown, a connecting pipe 15 is also provided on the feeding pipe 14 near the storage box 11. One end of the connecting pipe 15 is connected to the storage box 11, and the other end of the connecting pipe 15 is connected to the feeding pipe 14.

[0046] Both the feeding pipe 14 and the connecting pipe 15 are corrugated pipe structures.

[0047] like Figure 8 As shown, the fertilization mechanism includes a connecting rod 2 and a soil loosening component 3. The soil loosening component 3 is located at the bottom end of the connecting rod 2. Both ends of the bottom surface of the fertilizer box 1 are equipped with baffles. A limiting shaft 13 is fixedly connected between the two baffles. The connecting rod 2 is slidably connected to the limiting shaft 13.

[0048] like Figure 8 As shown, the second connecting rod 22 is symmetrically provided with soil covering parts 4 at the end away from the soil loosening part 3. A limit ring is provided on the second connecting rod 22. The limit ring is located directly above the two soil covering parts 4. The outlet end of the feeding pipe 14 passes through the limit ring and is located above the soil covering parts 4.

[0049] like Figure 2 and Figure 3 As shown, the bottom of the fertilizer box 1 is equipped with several limiting clips 6. Each limiting clip 6 is located below the material hole 12, and each limiting clip 6 is connected to the work vehicle through a connecting line.

[0050] Specifically, in this embodiment, corn and soybeans are intercropped, with two rows of corn and four rows of soybeans planted, separated by a ditch. Correspondingly, there are six fertilization units. Both corn and soybeans require the same base fertilizer of phosphorus and potassium. The difference is that corn needs nitrogen fertilizer, while soybeans require less or no nitrogen fertilizer. Therefore, the first two fertilization units need to mix nitrogen fertilizer and apply it along the row of corn near the ditch and the row between two rows of corn. The remaining fertilization units apply fertilizer simultaneously along the ditch between corn and soybeans and the rows between adjacent soybeans. The fertilization device of this invention is a further improvement on the prior art. Therefore, the work vehicle can also control the normal operation of the fertilization device of this invention.

[0051] Before fertilization, the fertilizer required for both corn and soybeans is poured into the fertilizer box 1. Preferably, a seal is provided between the feed hole 12 and the feed pipe 14 to prevent fertilizer leakage. Then, nitrogen fertilizer is poured separately into the storage box 11. A connecting pipe 15 is also connected to the feed pipe 14 located on one side of the storage box 11. The other end of the connecting pipe 15 is connected to the storage box 11. A recess is also opened on the bottom surface of the fertilizer box 1 near the storage box 11. The recess is connected to the feed hole 12. The feed pipe 14 is set in the recess to collect the fertilizer in the fertilizer box 1. When fertilizing, the fertilizer collected by the feed pipe 14 at the recess will mix with the nitrogen fertilizer falling in the connecting pipe 15, so as to fertilize the corn planting area. On the four fertilization mechanisms on the side away from the storage box 11, the connecting pipe 15 is not required. Only a feed pipe 14 located at the feed hole 12 is needed to fertilize the soybean planting area. In this way, the nitrogen fertilizer content in the soybean area can be reduced while meeting the nitrogen fertilizer absorption needs of the corn field.

[0052] The bottom of the fertilizer box 1 should be equipped with wheels to facilitate the movement of the work vehicle for fertilization. After all fertilizer has been added, the work vehicle is started, and the limit clamp 6 is opened via the connecting cable. The feed pipe 14 at the bottom of the fertilizer box 1 is no longer under pressure, allowing fertilizer to pass through. As described above, the work vehicle is an existing agricultural vehicle equipped with a power supply, and the limit clamp 6 can be controlled to open or close via the connecting cable. As the work vehicle moves, the loosening component 3 begins to turn the soil and form trenches. The fertilizer falls into the trenches through the outlet of the feed pipe 14. The covering component 4 is responsible for backfilling the soil turned over by the loosening component 3 into the trenches. There are two covering components 4, and the end away from the loosening component 3 is folded inward, which can better backfill the soil dug to both sides of the trenches into the trenches and bury the fertilizer, increasing the fertilization completion rate. This process is repeated until all fertilization is completed.

[0053] Example 2

[0054] like Figure 6 and Figure 8As shown, the top of the connecting rod 2 is provided with a slider 5. The slider 5 has a through hole along the axis of the limiting shaft 13. A bushing 51 is sleeved inside the through hole. The limiting shaft 13 has a first thread. The inner circumferential wall of the bushing 51 has an internal thread that is adapted to the first thread for thread connection.

[0055] like Figure 6 and Figure 8 As shown, both ends of the bushing 51 along the length direction are provided with protrusions 52.

[0056] In this embodiment, the spacing of the fertilization mechanism can be adaptively adjusted according to the different spacing between soybeans and corn in different fields.

[0057] When it is necessary to adjust the spacing of the connecting rod 2, the protrusion 52 on one side is rotated by a tool. The bushing 51 on the connecting rod 2 rotates in conjunction with the limiting shaft 13. The bushing 51 rotates and moves along the limiting shaft 13. The protrusion 52 on the other side limits the slider 5, so that the bushing 51 can drive the slider 5 to move together, thereby achieving the effect of adjusting the spacing.

[0058] Example 3

[0059] like Figure 7 and Figure 8 As shown, the connecting rod 2 includes a first connecting rod 21, a second connecting rod 22, and a transition sleeve 23. The top end of the first connecting rod 21 is connected to the slider 5, and a fixed rod is fixedly connected to the bottom of the first connecting rod 21. A second thread is provided on the fixed rod. An internal thread that is adapted to the second thread is provided on the inner circumferential wall of the transition sleeve 23. A through groove is opened downward on the top surface of the second connecting rod 22. A first annular groove is also opened downward on the top surface of the second connecting rod 22. The diameter of the first annular groove is larger than the diameter of the through groove. A second annular groove is opened on the bottom surface of the first annular groove. A connecting ring is provided on the bottom surface of the transition sleeve 23. A rotating ring is provided on the bottom surface of the connecting ring. The rotating ring is rotatably connected in the second annular groove, and the connecting ring is rotatably connected in the first annular groove.

[0060] Besides the different fertilizer requirements, corn and soybeans also have certain requirements for fertilization depth. Corn requires fertilization at a deeper depth than soybeans.

[0061] When adjusting the fertilization depth, i.e. the height of the loosening component 3, the transition sleeve 23 can be rotated using a tool. The transition sleeve 23 rotates and moves in conjunction with the fixed rod. The transition sleeve 23 is equipped with a rotating ring. When the transition sleeve 23 moves, it can drive the rotating ring to move through the connecting ring, thereby driving the second connecting rod 22 to move, thus changing the height of the loosening component 3 and the fertilization depth.

[0062] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A corn-soy strip interplanting and fertilizing device, comprising a fertilizer box (1), one side of the fertilizer box (1) in the length direction is provided with a fixing frame, characterized in that, The fertilizer box (1) is provided with several storage boxes (11), and the bottom of the fertilizer box (1) is also provided with a fertilizer application mechanism. The fertilizer box (1) is provided with a feeding pipe (14), and the bottom surface of the fertilizer box (1) is provided with several material holes (12) for the feeding pipe (14) to pass through. The fixed frame is connected to a work vehicle, and the spacing between the fertilizer application mechanisms is adjustable.

2. The corn-soybean strip interplanting and fertilizing device according to claim 1, characterized in that: The storage box (11) is located on one side of the fertilizer box (1) along its length, and there is a gap between the bottom surface of the storage box (11) and the inner bottom surface of the fertilizer box (1).

3. The fertilizer device for strip interplanting of corn and soybean according to claim 2, characterized in that: A connecting pipe (15) is also provided on the feeding pipe (14) near the storage box (11). One end of the connecting pipe (15) is connected to the storage box (11), and the other end of the connecting pipe (15) is connected to the feeding pipe (14).

4. The fertilization device for corn-soybean strip intercropping according to claim 3, characterized in that: Both the feeding pipe (14) and the connecting pipe (15) are corrugated pipe structures.

5. The device for fertilizing corn and soybean strip interplanting according to claim 1, characterized in that: The fertilization mechanism includes a connecting rod (2) and a soil loosening component (3). The soil loosening component (3) is located at the bottom end of the connecting rod (2). Both ends of the bottom surface of the fertilizer box (1) are provided with baffles. A limiting shaft (13) is fixedly connected between the two baffles. The connecting rod (2) is slidably connected to the limiting shaft (13).

6. The corn-soybean strip interplanting and fertilizing device according to claim 5, characterized in that: The top of the connecting rod (2) is provided with a slider (5), the slider (5) is provided with a through hole along the axis of the limiting shaft (13), a bushing (51) is provided inside the through hole, the limiting shaft (13) is provided with a first thread, and the inner circumferential wall of the bushing (51) is provided with an internal thread that is adapted to the first thread for thread connection.

7. The corn-soybean strip interplanting and fertilizing device according to claim 6, characterized in that: The bushing (51) has protrusions (52) at both ends along its length.

8. The corn-soybean strip interplanting and fertilizing device according to claim 6, characterized in that: The connecting rod (2) includes a first connecting rod (21), a second connecting rod (22), and a transition sleeve (23). The top end of the first connecting rod (21) is connected to the slider (5). A fixed rod is fixedly connected to the bottom of the first connecting rod (21). A second thread is provided on the fixed rod. An internal thread that is adapted to the second thread is provided on the inner circumferential wall of the transition sleeve (23). A through groove is opened on the top surface of the second connecting rod (22). A first annular groove is also opened on the top surface of the second connecting rod (22). The diameter of the first annular groove is larger than the diameter of the through groove. A second annular groove is opened on the bottom surface of the first annular groove. A connecting ring is provided on the bottom surface of the transition sleeve (23). A rotating ring is provided on the bottom surface of the connecting ring. The rotating ring is rotatably connected in the second annular groove. The connecting ring is rotatably connected in the first annular groove.

9. The corn-soybean strip interplanting and fertilizing device according to claim 8, characterized in that: The second connecting rod (22) is symmetrically provided with a soil covering component (4) at one end away from the loosening component (3). A limiting ring is provided on the second connecting rod (22). The limiting ring is located directly above the two soil covering components (4). The outlet end of the feeding pipe (14) passes through the limiting ring and is located above the soil covering component (4).

10. The device according to claim 1, characterized in that: The bottom end of the fertilizer box (1) is provided with a plurality of limiting clamps (6), each of which is located below the material hole (12), and each limiting clamp (6) is connected with the working vehicle through a connecting line.