Soil deep fertilization device for soybean planting
By designing a deep soil fertilization device with interlocking rigid and flexible pipes, the problem of soybean fertilization failing to improve soil quality and causing root burn in existing technologies has been solved. This device improves soil fertility while simultaneously applying soil and foliar fertilizers, and allows for soybean irrigation when no fertilizer is applied. The fixing ring and limiting band enhance the stability and applicability of the device.
Patent Information
- Application Number
- CN202520480055.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing soybean fertilization devices cannot effectively improve soil quality, and direct application of fertilizer to the roots can easily cause root burn in soybeans.
Design a deep soil fertilization device that includes interlaced rigid pipes and flexible pipes. Liquid fertilizer is infiltrated into the ground through a transmission pipe, and soil and foliar fertilization is achieved by combining an outlet pipe and branch pipes. Soybean branches are fixed by fixing rings and limiting bands.
It achieves the goal of improving soil fertility while avoiding root burn on soybeans, enabling simultaneous soil and foliar fertilization, and allowing for soybean irrigation when no fertilization is needed. Furthermore, the fixing ring and limiting band enhance the stability and applicability of the device.
Smart Images

Figure CN223859731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crop planting technology, specifically to a deep soil fertilization device for soybean planting. Background Technology
[0002] Soybeans are an important food crop. Their seeds are rich in plant protein and have a wide range of uses. Soybeans can be used to make a variety of fermented foods, and soybean meal is an important and inexpensive source of protein for animal feed and many packaged meals. Soybeans also contain a large amount of phytic acid, dietary minerals, and B vitamins.
[0003] Fertilization in soybean cultivation can improve soil structure and fertility, which is beneficial to soybean growth. Currently, soybean fertilization is mostly done through foliar application, by mixing fertilizers such as diammonium phosphate, urea, and superphosphate with water to form a fertilizer solution, which is then sprayed onto the leaves. To improve efficiency and suitability for field fertilization, pre-installed fixed fertilization devices have emerged. These devices involve installing flexible hoses or spliced rigid pipes in the soybean field, with nozzles spaced apart. After the fertilizer solution is introduced, it can be sprayed onto the leaves. As an improvement, these fixed fertilization devices often include rings to secure the soybean stems, preventing them from tilting or lodging during growth. However, in these structures, foliar fertilization alone cannot effectively improve soil quality, while direct root fertilization can easily cause root burn in soybeans, indicating room for technological improvement. Utility Model Content
[0004] This invention aims to solve the above-mentioned technical problems that foliar fertilization alone cannot effectively improve soil quality, while direct root fertilization can easily cause root burn in soybeans. It provides a deep soil fertilization device for soybean cultivation.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a deep soil fertilization device for soybean planting, comprising a plurality of staggered, end-to-end connected rigid pipes and flexible pipes, wherein the rigid pipes are placed on the soil on one side of the soybean ridge; further comprising:
[0006] Fertilizer application assembly; including a drain pipe connected to both ends of a rigid pipe, with an upper branch pipe and a lower branch pipe connected to the upper end of the drain pipe, and a valve one and a valve two respectively provided on the upper branch pipe and the lower branch pipe; a transmission pipe is provided at the lower end of the lower branch pipe, the transmission pipe is inserted into the ground, and a plurality of liquid outlet holes are arranged on the transmission pipe; a nozzle is provided at the end of the upper branch pipe.
[0007] Furthermore, the flexible hose is connected to the end of the rigid pipe and is located near the bottom; the flexible hose at the end is connected to a water supply source, and the rigid pipe at the end is sealed with an end cap.
[0008] Furthermore, a fixing ring is provided on the outer side of the rigid tube near the middle end, and a tapered foot is provided below the fixing ring.
[0009] Furthermore, the fixing ring is provided with a hollow threaded cylinder, and an extension rod is threadedly connected to the upper end of the hollow threaded cylinder. A limit band is fixed to the upper end of the extension rod, and an insertion block is provided at the other end of the limit band. The extension rod is provided with a slot that can accommodate the insertion block; both the insertion block and the slot are dovetail-shaped.
[0010] Furthermore, a transparent tube is connected to the lower branch pipe.
[0011] Furthermore, the lower end of each transmission tube is tapered; and a pressure plate is provided on the outer side of the upper end of each transmission tube.
[0012] The advantages of this utility model compared with the prior art are as follows:
[0013] By inserting the delivery pipe underground, the liquid fertilizer is gradually infiltrated into the soil, which can improve soil fertility and avoid root burn caused by direct irrigation of soybean roots.
[0014] It can simultaneously achieve soil fertilization and foliar fertilization, and through multiple connected rigid and flexible pipes, it can also achieve daily irrigation of soybeans when fertilization is not required.
[0015] The soybean branches are secured by a limiting strap. The length of the limiting strap can be adjusted freely by wrapping it around the extension rod, thus improving its applicability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the flexible hose and rigid tube structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of the fertilizer application component of this utility model.
[0019] Figure 4 This is a partial structural schematic diagram of this utility model.
[0020] As shown in the figure: 1. Rigid tube, 2. Flexible tube, 3. Fixing ring, 4. Conical foot, 5. Hollow threaded cylinder, 6. Extension rod, 7. Limiting band, 8. Insert block, 9. Slot, 10. Outlet tube, 11. Upper branch tube, 12. Lower branch tube, 13. Valve 1, 14. Valve 2, 15. Transparent tube, 16. Transfer tube, 17. Liquid outlet, 18. Pressure plate, 19. Nozzle. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings.
[0022] Example 1, in conjunction with Appendix Figure 1 , 2 A deep soil fertilization device for soybean cultivation includes several interlocking rigid pipes 1 and flexible pipes 2 connected end to end. The rigid pipes 1 are placed on the soil on one side of the soybean ridge. Specifically, the flexible pipes 2 are connected to the ends of the rigid pipes 1 and are located near the bottom. The end of the flexible pipe 2 is connected to a water supply source, and the end of the rigid pipe 1 is sealed with an end cap to prevent leakage. Through multiple interlocking rigid pipes and flexible pipes, continuous delivery of liquid fertilizer can be achieved, and daily irrigation of soybeans can be achieved even when fertilization is not being carried out.
[0023] Combined with appendix Figure 1 , 4 A fixing ring 3 is provided on the outer side of the rigid pipe 1 near the middle end, and a conical foot 4 is provided below the fixing ring 3; by inserting the conical foot 4 into the ground, the stability of the rigid pipe 1 can be improved.
[0024] Based on the above structure, a hollow threaded cylinder 5 is provided on the fixing ring 3, and an extension rod 6 is threadedly connected to the upper end of the hollow threaded cylinder 5; the height can be adjusted by rotating the extension rod 6, which facilitates the auxiliary support of soybean stalks of different heights through the limiting band 7 mentioned below;
[0025] The upper end of the extension rod 6 is fixed with a limiting band 7, and the other end of the limiting band 7 is provided with a plug 8. The extension rod 6 is provided with a slot 9 that can accommodate the plug 8. Both the plug 8 and the slot 9 are dovetail-shaped. When the soybean stem is close to the limiting band 7, the limiting band 7 can be wrapped around the outside of the extension rod 6 several times, and then the plug 8 can be inserted into the slot 9 after passing around the soybean stem. This makes it difficult for the soybean stem to tilt or fall over, and plays an auxiliary support role. The dovetail-shaped plug 8 and slot 9 can prevent them from coming out.
[0026] Combined with appendix Figure 1 , 2 3. It also includes a fertilization component; including an outlet pipe 10 connected to both ends of the rigid pipe 1, with an upper branch pipe 11 and a lower branch pipe 12 connected to the upper end of the outlet pipe 10, and a valve 13 and a valve 2 14 respectively provided on the upper branch pipe 11 and the lower branch pipe 12; the upper branch pipe 11 and the lower branch pipe 12 can be controlled independently through the valve 13 and the valve 2 14, so that only foliar fertilization or soil topdressing can be carried out;
[0027] Specifically, the lower branch pipe 12 is equipped with a transmission pipe 16 at its lower end. The transmission pipe 16 is inserted into the ground and has several liquid outlet holes 17 arranged on it. Liquid fertilizer can be released through the liquid outlet holes 17 to improve the fertility of the nearby soil. The upper branch pipe 12 is equipped with a nozzle 19 at its end, which can be used to spray liquid fertilizer onto the nearby leaves.
[0028] A transparent tube 15 is also connected to the lower branch pipe 12. The transparent tube 15 allows observation of whether the lower branch pipe 12 is releasing liquid fertilizer normally, thus preventing the blockage at the outlet pipe 10 from failing to deliver liquid fertilizer and going undetected.
[0029] In addition, the lower end of the transmission pipe 16 is tapered, and the outer side of the upper end of the transmission pipe 16 is provided with a pressure plate 18. The tapered shape can reduce the contact area with the ground, making it easier to insert into the ground. The pressure plate 18 can also be used to assist insertion by stepping on it.
[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A deep soil fertilization device for soybean cultivation, characterized in that: It includes several interlocking rigid pipes (1) and flexible pipes (2), the rigid pipes (1) being placed on the soil on one side of the soybean ridge; it also includes: Fertilizer application assembly; including a drain pipe (10) connected to both ends of a rigid pipe (1), the upper end of the drain pipe (10) being connected to an upper branch pipe (11) and a lower branch pipe (12), the upper branch pipe (11) and the lower branch pipe (12) being respectively provided with a valve one (13) and a valve two (14); the lower end of the lower branch pipe (12) is provided with a transmission pipe (16), the transmission pipe (16) being inserted into the ground, and a plurality of liquid outlet holes (17) being arranged on the transmission pipe (16); the end of the upper branch pipe (11) is provided with a nozzle (19).
2. The deep soil fertilization device for soybean cultivation according to claim 1, characterized in that: The hose (2) is connected to the end of the rigid pipe (1) and is located near the bottom; the hose (2) at the end is connected to the water supply source, and the rigid pipe (1) at the end is sealed with an end cap.
3. The deep soil fertilization device for soybean cultivation according to claim 1, characterized in that: A fixing ring (3) is provided on the outside of the rigid tube (1) and near the middle end, and a tapered foot (4) is provided below the fixing ring (3).
4. The deep soil fertilization device for soybean cultivation according to claim 3, characterized in that: The fixed ring (3) is provided with a hollow threaded cylinder (5), and an extension rod (6) is threadedly connected to the upper end of the hollow threaded cylinder (5). A limit band (7) is fixed to the upper end of the extension rod (6), and an insert (8) is provided at the other end of the limit band (7). A slot (9) is provided on the extension rod (6) to accommodate the insert (8). Both the insert (8) and the slot (9) are dovetail shaped.
5. A deep soil fertilization device for soybean cultivation according to claim 1, characterized in that: A transparent tube (15) is connected to the lower branch pipe (12).
6. A deep soil fertilization device for soybean cultivation according to claim 1, characterized in that: The lower end of each of the transmission tubes (16) is tapered; a pressure plate (18) is provided on the outer side of the upper end of each of the transmission tubes (16).