Biological corrosion promoting agent slow-release fertilization device

The biological composting agent slow-release fertilization device, with its porous clay slow-release cylinder and threaded connection design, solves the problems of easy loss of microbial composting agents and frequent fertilization, and achieves stable release of composting agents and long-term soil improvement effect.

CN224124605UActive Publication Date: 2026-04-17GUANGXI FORESTRY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI FORESTRY RES INST
Filing Date
2025-05-23
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing microbial composting agents are easily lost in forest soil improvement, have a short duration of action, require frequent fertilization, and increase labor costs and environmental burden.

Method used

Design a slow-release fertilizer application device for biological composting agents. The device uses a slow-release cylinder made of porous clay, combined with threaded connections, a rainproof cap, and a ground-insertion rod to achieve slow release and stable fixation of the composting agent.

Benefits of technology

It extends the action time of the composting agent to 3-6 months, reduces the fertilization frequency to 1-2 times per year, improves the soil improvement effect, and reduces labor costs and environmental burden.

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Abstract

The utility model relates to the technical field of soil improvement equipment, in particular to a biological corrosion promoting agent slow-release fertilization device which comprises a slow-release cylinder, the slow-release cylinder is of a columnar structure with the bottom closed and the upper end open, a rotatable and detachable sealing cover is installed at the upper end of the slow-release cylinder, and a rainproof cap with the high middle and the low edge is arranged at the upper end of the sealing cover. The diameter of the rainproof cap is larger than that of the sealing cover, multiple sets of through slow-release micro holes are formed in the surface of the slow-release barrel, the outer ring face of the slow-release barrel is sleeved with a protective sleeve, and a ground inserting rod used for being inserted into soil to be fixed is fixedly arranged at the bottom of the slow-release barrel. The slow-release technology is adopted, the columnar slow-release carrier made of the porous pottery clay slowly releases the microbial corrosion promoting agent, so that microbial flora can continuously play a role in a long time, the action time is prolonged to 3-6 months from original 1-2 months, the soil improvement effect is improved, the manual fertilization frequency is reduced to 1-2 times every year, and the yield is improved. The workload of manual fertilization is greatly reduced, and the labor cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of soil improvement equipment technology, and more specifically, to a biological composting agent slow-release fertilization device. Background Technology

[0002] Soil improvement refers to a series of technical measures that utilize theories and technologies from multiple disciplines such as soil science, biology, and ecology to eliminate or prevent adverse factors affecting crop growth and causing soil degradation, improve soil properties, enhance soil fertility, and create favorable soil environmental conditions for crops. Its basic measures include: ① Soil water management improvement, such as establishing farmland irrigation and drainage projects, regulating groundwater levels, improving soil moisture conditions, and preventing and controlling marshland formation and salinization; ② Soil engineering improvement, such as using engineering measures like land leveling, terracing, and flood diversion to improve soil conditions; ③ Soil biological improvement, using various biological pathways (such as planting green manure) to increase soil organic matter and improve soil fertility, or creating protective forests to prevent soil erosion; ④ Soil cultivation improvement, improving soil conditions through improved cultivation methods; ⑤ Soil chemical improvement, such as applying chemical fertilizers and various soil conditioners to improve soil fertility, improve soil structure, and eliminate soil pollution.

[0003] In existing forest land improvement and self-fertilization processes (such as the G1 / G2 model), a common method is to apply microbial composting agents to promote the decomposition and transformation of soil organic matter. These agents accelerate the decomposition of organic matter, release nutrients, improve soil structure, and enhance soil fertility, thereby promoting plant growth. However, this application method has several problems: First, the agents are easily washed away by rainwater, reducing their effectiveness; second, their effect is short-lived, typically lasting only 1-2 months, requiring frequent replenishment; third, frequent application increases labor costs and intensity, especially in large-scale forest areas, leading to low efficiency; and finally, frequent application also increases environmental burden and costs. These problems severely restrict the application effectiveness and scope of microbial composting agents in forest soil improvement. Therefore, there is an urgent need to develop a device that can slowly release microbial composting agents, extending their effect time, reducing fertilization frequency, and improving the efficiency and effectiveness of forest soil improvement. Utility Model Content

[0004] To address the shortcomings of existing methods, the present invention aims to provide a biological composting agent slow-release fertilization device to solve the problems of easy loss of composting agents, short action time, and high frequency of manual fertilization in existing application methods. This device can slowly release microbial composting agents, reduce the loss of composting agents, prolong the action time, thereby reducing the frequency of manual fertilization, and is suitable for large-scale promotion in forest land.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A slow-release fertilizer device for biological composting agents includes a slow-release cylinder, a sealing cap, and a ground-insertion rod. The slow-release cylinder is a columnar structure with a closed bottom and an open top. A rotatable and detachable sealing cap is installed at the top. The sealing cap has a rainproof cap that is higher in the middle and lower at the edges, and the diameter of the rainproof cap is larger than the diameter of the sealing cap. The surface of the slow-release cylinder has multiple sets of through-holes for slow-release. A protective sleeve is fitted on the outer ring surface of the slow-release cylinder. A ground-insertion rod for insertion into the soil is fixed at the bottom of the slow-release cylinder.

[0007] Furthermore, the slow-release cylinder has an external thread on its annular surface near the upper port, and the sealing cap has an internal thread on its inner annular surface that matches the external thread. The sealing cap is screwed into the external thread on the slow-release cylinder through the internal thread to form a sealing connection.

[0008] Furthermore, the rain cap has an arc-shaped protrusion at the center of its top, and multiple sets of radially distributed guide grooves are formed on the upper surface of the rain cap.

[0009] Furthermore, the slow-release cylinder is made of porous clay and has a diameter of 8 cm and a height of 15 cm.

[0010] Furthermore, the ground insertion rod has a conical structure with a pointed end at the bottom, the length of the ground insertion rod is 10cm, and the ring surface of the ground insertion rod is provided with a spiral plate with a spiral structure.

[0011] Furthermore, multiple sets of fins are radially and uniformly arranged on the annular surface of the slow-release cylinder.

[0012] Furthermore, the bottom of the inner wall of the slow-release cylinder is provided with an upwardly protruding guide boss, and the guide boss has an arc-shaped structure.

[0013] Furthermore, the sheath is made of sponge material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The biological composting agent slow-release fertilization device of this utility model adopts slow-release technology. It slowly releases microbial composting agents through a columnar slow-release carrier made of porous clay, so that the microbial community can continue to play a role for a longer period of time. The effect time is extended from the original 1-2 months to 3-6 months, which improves the soil improvement effect and reduces the frequency of manual fertilization to 1-2 times per year, greatly reducing the workload of manual fertilization and reducing labor costs.

[0016] 2. The biological composting agent slow-release fertilization device of this utility model adopts an insert-type fixed structure and a rain-resistant design, which effectively reduces the loss of microbial composting agents in the natural environment, improves the efficiency of composting agent use, and extends its action time, thus better meeting the needs of large-scale forest land soil improvement.

[0017] 3. The biological composting agent slow-release fertilization device of this utility model has a simple structure, is easy to operate, and is easy to promote and apply on a large scale. It is especially suitable for soil improvement work in large-area forest land. At the same time, it can reduce the frequency of fertilization, reduce environmental burden and cost input, and is in line with the concept of green agriculture and sustainable development.

[0018] 4. This utility model achieves uniform release through a slow-release carrier made of porous clay, ensuring the uniform distribution of microbial composting agents in the soil, better controlling the release rate and distribution, and improving the uniformity and effectiveness of soil improvement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a front view of the present invention.

[0021] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0022] Figure 4 This is a frontal sectional view of the present invention.

[0023] Figure 5 This is a cross-sectional view of the slow-release cartridge in this utility model.

[0024] In the diagram: 1. Rain cap; 11. Arc-shaped protrusion; 12. Guide channel; 2. Sheath; 3. Ground insertion rod; 31. Spiral blade; 4. Sealing cap; 5. Wing blade; 6. Slow-release cylinder; 61. External thread; 7. Slow-release micropore; 8. Guide boss. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] Example:

[0027] like Figures 1 to 5As shown, a slow-release fertilizer application device for biological composting agents includes a slow-release cylinder 6, a sealing cap 4, and a ground-insertion rod 3. The slow-release cylinder 6 is a cylindrical structure with a closed bottom and an open top. A rotatable and detachable sealing cap 4 is installed at the top of the cylinder. The sealing cap 4 seals the upper end of the slow-release cylinder 6 and allows users to easily add or replace the composting agent at any time. The sealing cap 4 has a rain cap 1 at its upper end, which is higher in the middle and lower at the edges. The diameter of the rain cap 1 is larger than that of the sealing cap 4. The rain cap 1 provides protection for the entire device from above, preventing rainwater from directly contacting and washing away the composting agent inside the cylinder 6, thus ensuring the activity of the microbial community. The surface of the slow-release cylinder 6 has multiple sets of through-holes 7, which serve as channels for the release of the composting agent. These micropores allow for the slow release of the composting agent and effectively control its release rate, ensuring its continuous effect over a certain period. A protective sleeve 2 is fitted around the outer ring of the slow-release cylinder 6. The sleeve 2 protects the cylinder 6, reducing damage from external factors such as collisions and friction, extending the device's lifespan. It also isolates the slow-release micropores 7 from the surrounding soil during use, preventing soil particles from clogging them. A ground-insertion rod 3 is fixed to the bottom of the slow-release cylinder 6 for insertion into the soil, ensuring the device's stability and allowing the composting agent to be accurately and stably released to the target area, improving fertilization effectiveness. This design solves the problems of existing composting agent application methods, such as application by sprinkling, which easily result in the agent being washed away by rainwater, reducing the effective components, and requiring frequent replenishment due to its short duration of action. Furthermore, frequent fertilization increases labor costs and intensity, as well as environmental burden and overall cost.

[0028] In this embodiment, the sustained-release cartridge 6 has an external thread 61 on its annular surface near the upper port, and the sealing cap 4 has an internal thread that matches the external thread 61 on its inner annular surface. The sealing cap 4 is screwed into the external thread 61 on the sustained-release cartridge 6 through the internal thread to create a sealing connection. The threaded connection ensures the sealing performance at the connection between the sealing cap 4 and the sustained-release cartridge 6, and also allows the user to easily open the sealing cap 4 to add or replace the accelerator in the sustained-release cartridge 6. The operation is simple and convenient, improving the flexibility of the device.

[0029] In this embodiment, an arc-shaped protrusion 11 is provided at the center of the top of the rain cap 1, which can guide rainwater to flow in all directions, preventing rainwater from accumulating in the central area of ​​the top of the rain cap 1. Multiple sets of radially distributed guide grooves 12 are formed on the upper surface of the rain cap 1. The presence of the guide grooves 12 effectively prevents rainwater from accumulating on the upper surface of the rain cap 1 and effectively guides rainwater to flow down along the edges. This design allows rainwater to leave the top of the rain cap 1 more quickly, reducing the contact time between rainwater and the rain cap 1 and decreasing the possibility of rainwater penetrating into the interior of the device.

[0030] In this embodiment, the slow-release cartridge 6 is made of porous clay, with a diameter of 8 cm and a height of 15 cm. The porous clay has a large number of tiny, interconnected pores, giving the slow-release cartridge 6 good air and water permeability, which is conducive to the uniform release of the preservative agent inside the slow-release cartridge 6. At the same time, porous clay is a natural inorganic material with wide availability, a relatively simple preparation process, and does not produce harmful substances during use, thus causing no pollution to the soil or the environment.

[0031] In this embodiment, the ground-inserting rod 3 has a conical structure with a pointed lower end. The rod is 10cm long, and a spiral plate 31 with a helical structure is provided on its annular surface. The conical shape of the rod facilitates the insertion and fixation of the device in the soil, enabling rapid and convenient installation. Simultaneously, the spiral plate 31 increases the friction and contact area between the rod and the soil, further improving the fixation effect and enhancing the stability of the device in the soil.

[0032] In this embodiment, multiple sets of fins 5 are radially and evenly arranged on the annular surface of the slow-release cylinder 6. When the fertilization device is inserted into the soil, the multiple sets of radially evenly distributed fins 5 will embed into the soil. The fins 5 increase the contact area between the device and the soil, thereby enhancing the stability of the device in the soil and effectively preventing the device from tilting or shaking. This ensures that the slow-release cylinder 6 always maintains a vertical and stable state, thereby ensuring that the composting agent can be accurately released into the soil.

[0033] In this embodiment, the bottom of the inner wall of the slow-release cylinder 6 is provided with an upwardly protruding guide protrusion 8, and the guide protrusion 8 has an arc-shaped structure. The arc-shaped guide protrusion 8 design can reduce the residue of the composting agent at the bottom of the slow-release cylinder 6. During the release of the composting agent, as the liquid level drops, the guide protrusion 8 can guide the residual composting agent to flow into the micropores or gaps of the slow-release cylinder 6, making it easier for it to be released into the soil and improving the utilization rate of the composting agent.

[0034] It should be noted that the sleeve 2 is made of sponge material and is fitted onto the outer ring surface of the slow-release cylinder 6. The sponge material contains a large number of interconnected micropores, which will not affect the normal release of the preservative agent inside the slow-release cylinder 6. At the same time, the sponge sleeve 2 has good water absorption and cushioning properties, which can absorb moisture from the soil to a certain extent, creating a suitable humidity environment for the release of the preservative agent. It can also protect the slow-release cylinder 6 from collisions and abrasions from external objects, extending the service life of the device.

[0035] The working principle of this slow-release biological composting agent fertilizer application device:

[0036] In practical use, rotate and open the sealing cap 4, then slowly pour an appropriate amount of biological composting agent (such as cellulose-decomposing bacteria + earthworm castings) into the slow-release cylinder 6. After adding the composting agent, align the sealing cap 4 with the upper port of the slow-release cylinder 6, and rotate the sealing cap 4 so that its internal thread tightly engages with the external thread 61 of the slow-release cylinder 6, ensuring a good seal. Select a suitable fertilization location, align the tip of the ground-inserting rod 3 with the soil, and forcefully insert it downwards, allowing the ground-inserting rod 3 to gradually enter the soil until the rain cap 1 is in contact with the soil surface, thus fixing the device in place. After the device is installed, the composting agent will be slowly released into the soil through the pore structure and slow-release micropores 7 of the slow-release cylinder 6, with an effective period of 3-6 months. This device, through its ingenious structural design, achieves stable and slow release of the composting agent, replacing traditional spraying methods, reducing the loss of the composting agent, extending the duration of action, and reducing the frequency of manual fertilization to 1-2 times per year through slow-release technology, making it suitable for large-scale forest land promotion.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A biological coring agent slow-release fertilizer device characterized by: The device includes a slow-release cylinder (6), a sealing cap (4), and a ground insertion rod (3). The slow-release cylinder (6) is a columnar structure with a closed bottom and an open top. A rotatable and detachable sealing cap (4) is installed on its upper end. The sealing cap (4) has a rain cap (1) with a high center and low edges on its upper end. The diameter of the rain cap (1) is larger than the diameter of the sealing cap (4). The surface of the slow-release cylinder (6) is provided with multiple sets of through-hole slow-release micropores (7). A protective sleeve (2) is fitted on the outer ring surface of the slow-release cylinder (6). A ground insertion rod (3) for insertion into the soil is fixed at the bottom of the slow-release cylinder (6).

2. The biological coring agent slow-release fertilizer device according to claim 1, characterized in that: The slow-release cylinder (6) has an external thread (61) on its annular surface near the upper port. The sealing cap (4) has an internal thread that matches the external thread (61) on its inner annular surface. The sealing cap (4) is screwed and sealed to the external thread (61) on the slow-release cylinder (6) through the internal thread.

3. The biological composting agent slow-release fertilizer application device according to claim 1, characterized in that: The rain cap (1) has an arc-shaped protrusion (11) at the middle of the top, and multiple sets of radially distributed guide grooves (12) are opened on the upper surface of the rain cap (1).

4. The biological composting agent slow-release fertilization device according to claim 1, characterized in that: The slow-release cylinder (6) is made of porous clay and has a diameter of 8 cm and a height of 15 cm.

5. The biological composting agent slow-release fertilizer application device according to claim 1, characterized in that: The ground insertion rod (3) has a conical structure with a pointed end at the bottom. The ground insertion rod (3) is 10cm long and has a spiral plate (31) with a spiral structure on its ring surface.

6. The biological composting agent slow-release fertilization device according to claim 1, characterized in that: The slow-release cylinder (6) has multiple sets of fins (5) evenly arranged radially on its annular surface.

7. The biological composting agent slow-release fertilizer application device according to claim 1, characterized in that: The bottom of the inner wall of the slow-release cylinder (6) is provided with an upwardly protruding guide boss (8), and the guide boss (8) has an arc-shaped structure.

8. The biological composting agent slow-release fertilizer application device according to claim 1, characterized in that: The sheath (2) is made of sponge material.