Quantitative fertilizing device

By designing a quantitative fertilization device, the problem of uneven distribution of soil and fertilizer was solved, achieving uniform mixing and quantitative application of soil and fertilizer, improving the nutrient absorption rate of seedlings and avoiding fertilizer waste.

CN121942402APending Publication Date: 2026-05-01HUNAN BIOLOGICAL & ELECTROMECHANICAL POLYTECHNIC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN BIOLOGICAL & ELECTROMECHANICAL POLYTECHNIC
Filing Date
2024-02-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing fertilization methods result in uneven distribution of soil and fertilizer, affecting plant growth and causing fertilizer waste.

Method used

A quantitative fertilization device was designed, including a fertilizer bin, a four-legged walking mechanism, a fertilization mechanism, and a mixing mechanism. The device achieves soil-fertilizer mixing and quantitative dispensing through a drill cylinder, a spiral feeding plate, and a flexible anti-scratch cloth. Combined with a granular metering valve and an intermittent feeding assembly, it ensures accurate fertilizer dispensing.

Benefits of technology

This process ensures uniform mixing of soil and fertilizer, improves the absorption rate of fertilizer by seedlings, avoids fertilizer waste, and guarantees the accuracy and efficiency of fertilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121942402A_ABST
    Figure CN121942402A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of quantitative fertilization, and particularly relates to a quantitative fertilization device which comprises a fertilizer box, a four-foot walking mechanism and a mounting plate, a telescopic air cylinder is mounted at the upper end of the mounting plate and is in transmission connection with a sliding plate, and a mounting box is mounted at the lower end of the sliding plate; the center of the lower end of the mounting box is rotationally connected with a rotating shaft, the lower end of the mounting box is rotationally connected with a first inner gear ring, the lower end of the first inner gear ring is fixedly connected with a fixing rod, the lower end of the fixing rod is fixedly connected with a drilling cylinder, and the peripheral side of the rotating shaft is fixedly connected with a spiral feeding plate. The mounting ring and the mixing cylinder are connected with flexible anti-scraping cloth, and a mixing mechanism is mounted in the mixing cylinder; according to the device, soil can be collected and mixed with fertilizer and then filled into deep pits again, the amount of mixed fertilizer in each deep pit can be quantitatively controlled, the absorptivity of seedlings to the fertilizer is improved, meanwhile, fertilizer waste can be avoided through directional and quantitative deep pit fertilization, and the mixing efficiency of the fertilizer and the soil can be improved through a stirring assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of quantitative fertilization technology, and specifically relates to a quantitative fertilization device. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. They are one of the material foundations of agricultural production. They mainly include ammonium phosphate fertilizers, water-soluble fertilizers containing macronutrients, fertilizers containing micronutrients, bio-fertilizers, organic fertilizers, and multi-dimensional concentrated organic fertilizers. Different fertilizers are applied before, during, and after planting to provide nutrients to plants. The fertilizer applied in the early stages is called basal fertilizer. Current methods for applying basal fertilizer typically involve first evenly spreading the fertilizer on the soil surface, then turning the soil to mix the fertilizer and ensure it reaches deeper layers. This method often results in uneven fertilizer distribution. Furthermore, since plants are usually planted at intervals, the above method can lead to insufficient fertility near the plant and abundant fertility further away. This results in inaccurate quantitative fertilization and waste of fertilizer at distances, ultimately affecting plant growth. Therefore, this method needs improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a quantitative fertilization device that can collect soil and mix it with fertilizer during deep pit fertilization, and then refill the deep pit with the mixed fertilizer and soil. This device can mix soil and fertilizer while quantitatively fertilizing a fixed area, thereby improving the absorption rate of fertilizer by seedlings during planting. At the same time, targeted deep pit fertilization can avoid fertilizer waste.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A quantitative fertilization device includes a fertilizer box, a four-legged walking mechanism installed at the lower end of the fertilizer box, an installation plate fixedly connected to the center of the lower end of the fertilizer box, a telescopic cylinder installed at the upper end of the installation plate, a sliding plate slidably connected to the output end of the telescopic cylinder, and a fertilization mechanism installed at the lower end of the sliding plate.

[0006] The fertilization mechanism includes a mixing cylinder installed at the lower end of a sliding plate. A mounting box located at the center of the mixing cylinder is installed at the lower end of the sliding plate. A drive motor is installed inside the mounting box, and the output end of the drive motor is connected to a drive gear. A rotating shaft is rotatably connected to the center of the lower end of the mounting box. Several gear grooves meshing with the drive gear are opened on the side of the rotating shaft. A first internal gear ring is rotatably connected to the lower end of the mounting box. A fixing rod is fixedly connected to the lower end of the first internal gear ring. A drill cylinder is fixedly connected to the lower end of the fixing rod. A spiral feeding plate matching the drill cylinder is fixedly connected to the circumference of the rotating shaft. A U-shaped rod is installed at the lower end of the mounting plate and slides vertically with the sliding plate. Both ends of the U-shaped rod are fixedly connected to mounting rings sleeved on the outside of the drill cylinder. A flexible anti-scratch fabric is connected between the mounting rings and the mixing cylinder. A mixing mechanism is installed inside the mixing cylinder. A quantitative feeding mechanism is installed between the fertilizer box and the mixing cylinder.

[0007] The mixing mechanism includes a second internal gear ring rotatably connected to the mixing cylinder. A plurality of first meshing teeth are fixedly connected to the outer side of the first internal gear ring. A transmission gear that meshes with the plurality of first meshing teeth is rotatably connected to the top wall of the mixing cylinder. The second internal gear ring meshes with the transmission gear. A stirring assembly is installed at the lower end of the second internal gear ring.

[0008] The stirring assembly includes several vertical rods fixedly connected to the second internal toothed ring. Each vertical rod is fixedly connected to an inclined rod that tilts towards the center. Several connecting rods are fixedly connected between the inclined rods and the vertical rods. The several connecting rods are rotatably connected to stirring rods that are arranged in an alternating manner.

[0009] The inclined rod is vertically slidably connected to a gravity slide rod, and each of the gravity slide rods is fixedly connected to a limit block at both ends.

[0010] The quantitative feeding mechanism includes two granule metering valves installed at the lower end of the fertilizer tank. A feeding hose connected to the granule metering valves is fixedly installed at the lower end of the fertilizer tank. A mounting base is provided between the feeding hose and the upper part of the mixing cylinder. An intermittent feeding component is installed inside the mounting base.

[0011] The intermittent feeding assembly includes an L-shaped plate slidably connected to the mounting base. A first spring is fixedly installed between the L-shaped plate and the mounting base. An abutment plate is slidably connected to the side of the L-shaped plate near the vertical rod. A second spring is fixedly connected between the abutment plate and the L-shaped plate. An inclined surface is provided on the side of the abutment plate in the opposite direction of rotation of the vertical rod.

[0012] The number of fertilizer application mechanisms is two. The mounting box is slidably connected to the sliding plate, and the U-shaped rod is slidably connected to the mounting plate. A bidirectional threaded rod is rotatably connected inside the mounting plate. The two threaded ends of the bidirectional threaded rod with opposite directions are respectively threaded to the two U-shaped rods. The bidirectional threaded rod extends out of the mounting plate and is equipped with a handle.

[0013] The flexible, scratch-resistant fabric is waterproof Oxford cloth.

[0014] This invention can collect soil and mix it with fertilizer during deep pit fertilization, and then refill the deep pit with the mixed fertilizer and soil. It can mix soil and fertilizer while applying a fixed amount of fertilizer to a fixed area, thereby improving the absorption rate of fertilizer by seedlings during planting. At the same time, targeted deep pit fertilization can avoid fertilizer waste. Attached Figure Description

[0015] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a quantitative fertilization device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the first cross-sectional structure of a quantitative fertilization device according to the present invention;

[0018] Figure 3 This is a second cross-sectional structural diagram of a quantitative fertilization device according to the present invention;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This is a schematic diagram of the third cross-sectional structure of a quantitative fertilization device according to the present invention;

[0021] Figure 6 for Figure 5 A magnified structural diagram at point B in the middle.

[0022] The markings for the main components are explained below:

[0023] 1. Fertilizer bin, 11. Four-legged walking mechanism, 12. Mounting plate, 13. Telescopic cylinder, 14. Sliding plate, 15. Mixing cylinder, 16. Mounting box, 17. Drive motor, 18. Drive gear, 19. Rotating shaft, 21. First internal gear ring, 22. Fixing rod, 23. Drill cylinder, 24. Spiral feeding plate, 25. U-shaped rod, 26. Mounting ring, 27. Flexible anti-scratch cloth, 30. First meshing tooth, 31. Transmission gear, 32. Second internal gear ring, 33. Vertical rod, 34. Inclined rod, 35. Connecting rod, 36. Stirring rod, 37. Gravity sliding rod, 38. Limiting block, 40. Particle metering valve, 41. Feeding hose, 42. Mounting base, 43. L-shaped plate, 44. Second spring, 45. Abutment plate, 46. First spring, 47. Bidirectional threaded rod, 48. Handle. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Example 1:

[0026] like Figure 1-6 As shown, a quantitative fertilization device of the present invention includes a fertilizer box 1, a four-legged walking mechanism 11 installed at the lower end of the fertilizer box 1, an installation plate 12 fixedly connected to the center of the lower end of the fertilizer box 1, a telescopic cylinder 13 installed at the upper end of the installation plate 12, a sliding plate 14 that is slidably connected to the installation plate 12 at the output end of the telescopic cylinder 13, and a fertilization mechanism installed at the lower end of the sliding plate 14.

[0027] The fertilization mechanism includes a mixing cylinder 15 installed at the lower end of a sliding plate 14. A mounting box 16 located at the center of the mixing cylinder 15 is installed at the lower end of the sliding plate 14. A drive motor 17 is installed inside the mounting box 16. The output end of the drive motor 17 is connected to a drive gear 18. A rotating shaft 19 is rotatably connected to the center of the lower end of the mounting box 16. Several gear grooves that mesh with the drive gear 18 are opened on the side of the rotating shaft 19. A first internal gear ring 21 is rotatably connected to the lower end of the mounting box 16. A fixed component is fixedly connected to the lower end of the first internal gear ring 21. A fixed rod 22 is fixedly connected to a drill cylinder 23 at its lower end. A spiral feeding plate 24 matching the drill cylinder 23 is fixedly connected to the circumference of the rotating shaft 19. A U-shaped rod 25 that slides up and down with the sliding plate 14 is installed at the lower end of the mounting plate 12. Both ends of the U-shaped rod 25 are fixedly connected to a mounting ring 26 sleeved on the outside of the drill cylinder 23. A flexible anti-scratch cloth 27 is connected to the mounting ring 26 and the mixing cylinder 15. A mixing mechanism is installed inside the mixing cylinder 15. A quantitative feeding mechanism is installed between the fertilizer box 1 and the mixing cylinder 15.

[0028] In use, a push rod of existing technology can be installed on the side of the mounting plate 12, which, in conjunction with the four-legged walking mechanism 11, drives the entire device to move. A traction mechanism can also be installed on the side of the mounting plate 12, connecting the mounting plate 12 and the drive vehicle. This allows the drive vehicle to move along with the four-legged walking mechanism 11. Therefore, the movement method of the entire device is not limited. Fertilizer is pre-added inside the fertilizer tank 1, and then the four-legged walking mechanism 11 drives the entire device to move to the location where fertilization is needed. Upon reaching the designated location, the telescopic cylinder 13 is activated to move downwards and the drive motor 17 operates. When the telescopic cylinder 13 is working, it drives the sliding plate 14 to slide downwards, bringing the drill barrel 23 closer to the ground and inserting it into the soil. When the drive motor 17 is working, it drives the drive gear 18 to rotate, which in turn drives the gear groove of the rotating shaft 19 to rotate in the forward direction. The first internal gear ring 21, which meshes with the drive gear 18, rotates in the reverse direction with the drive gear 18. This causes the first internal gear ring 21 to drive the drill barrel 23 to drill holes in the soil as it moves downwards in conjunction with the telescopic cylinder 13. Then, because the rotating shaft 19 drives the spiral feeding plate 24 to rotate in the forward direction, it works in conjunction with the reverse-rotating drill barrel 23 to transport the drilled soil upwards into the mixing cylinder 15 and the flexible... Inside the anti-scratch fabric 27, as the telescopic cylinder 13 drives the sliding plate 14 to slide downwards, the mounting ring 26 is fixedly connected to the U-shaped rod 25, which is connected to the mounting plate 12. Therefore, the mounting ring 26 will not slide up or down. This causes the flexible anti-scratch fabric 27 to tilt from the inside out and from top to bottom when the mixing cylinder 15 slides downwards. This causes the soil being transported to move around the flexible anti-scratch fabric 27 and the mixing cylinder 15. Then, an appropriate amount of fertilizer is added through the quantitative feeding mechanism, and the fertilizer and soil are mixed by the mixing mechanism. After mixing, the telescopic cylinder 13 is driven to move upwards, causing the mixing cylinder 15 to move upwards. The mounting ring 26 fits into the upper end of the drill barrel 23, causing the flexible anti-scratch cloth 27 to tilt downwards from the outside in, allowing the soil to enter the drill barrel 23 through the fixed rods 22. Then, the drive motor 17 rotates, causing the rotating shaft 19 to rotate in the opposite direction, allowing the soil mixed with fertilizer to re-enter the soil and enter the pit dug by the drill barrel 23. This allows the seedlings to be planted inside the pit, which can better absorb nutrients and better control the amount of fertilizer applied to the seedlings, preventing waste. After applying fertilizer to one pit, the four-legged walking mechanism 11 moves to the next fertilization point, and this cycle can continuously apply fertilizer to the soil in a quantitative manner.

[0029] This invention allows for the collection of soil and mixing with fertilizer during deep pit fertilization. The mixed fertilizer and soil are then used to refill the deep pit. This method allows for quantitative fertilization of a fixed area while simultaneously mixing the soil and fertilizer, improving the absorption rate of fertilizer by seedlings during planting. Furthermore, the targeted and quantitative application of fertilizer in deep pit fertilization avoids fertilizer waste.

[0030] Example 2:

[0031] Based on Embodiment 1, a further improvement is made. The mixing mechanism includes a second internal gear ring 32 rotatably connected to the mixing cylinder 15. A plurality of first meshing teeth 30 are fixedly connected to the outer side of the first internal gear ring 21. A transmission gear 31 that meshes with the plurality of first meshing teeth 30 is rotatably connected to the inner top wall of the mixing cylinder 15. The second internal gear ring 32 meshes with the transmission gear 31. A stirring assembly is installed at the lower end of the second internal gear ring 32.

[0032] When the drive motor 17 is working, it will drive the first internal gear ring 21 to rotate in the opposite direction, which in turn will drive the transmission gear 31 meshing with it to rotate in the forward direction. Since the transmission gear meshes with the second internal gear ring 32, when the transmission gear 31 rotates, it will drive the second internal gear ring 32 to rotate in the forward direction, which will in turn drive the stirring assembly to rotate in the forward direction.

[0033] The mixing assembly includes several vertical rods 33 fixedly connected to the second inner toothed ring 32. Each vertical rod 33 is fixedly connected to an inclined rod 34 that tilts towards the center. Several connecting rods 35 are fixedly connected between the inclined rods 34 and the vertical rods 33. The several connecting rods 35 are rotatably connected to interleaved mixing rods 36. When the second inner toothed ring 32 rotates, it drives the several vertical rods 33 to rotate and scrapes the inner wall of the mixing cylinder 15. When the vertical rods 33 rotate, they drive the several inclined rods 34 and the several connecting rods 35 to rotate. Since the flexible anti-scratch cloth 27 is inclined after the soil is conveyed into the mixing cylinder 15, the inclined rods 34 can better mix the soil and fertilizer accumulated inside the mixing cylinder 15. When the connecting rods 35 rotate, they drive the mixing rods 36 to rotate around the rotating shaft 19. Since the mixing rods 36 are rotatably connected to the connecting rods 35, the several mixing rods 36 will rotate under the constraint of the soil and the drive of the connecting rods 35, thereby mixing the soil and fertilizer and improving the mixing efficiency.

[0034] The inclined rod 34 is vertically slidably connected to a gravity slide rod 37, and several gravity slide rods 37 are fixedly connected to limit blocks 38 at both ends. Because the flexible anti-scratch fabric 27 is flexible, it is not taut during the downward movement of the drill barrel 23. At this time, the lower side of the flexible anti-scratch fabric 27 falls downward due to the weight of the soil, which causes the upper side of the flexible anti-scratch fabric 27 to taut. Since the inclined rod 34 is a rigid material, it cannot mix the falling soil. At this time, the gravity slide rod 37 will slide downward under the action of gravity and then penetrate into the falling soil to mix it. The taut part of the flexible anti-scratch fabric 27 will overcome the gravity of the gravity slide rod 37 and move upward until the limit block 38 abuts against the inclined rod 34.

[0035] The quantitative feeding mechanism includes two granule metering valves 40 installed at the lower end of the fertilizer tank 1. A feeding hose 41 connected to the granule metering valves 40 is fixedly installed at the lower end of the fertilizer tank 1. A mounting seat 42 is provided between the feeding hose 41 and the upper part of the mixing cylinder 15. An intermittent feeding component is installed inside the mounting seat 42.

[0036] The granule metering valve 40 can meter the flowing fertilizer, thereby allowing a fixed amount of fertilizer to enter the feeding hose 41, and then intermittently enter the mixing cylinder 15 through the intermittent feeding component. The intermittent entry into the mixing cylinder 15 can improve the uniformity of fertilizer mixing with soil.

[0037] The intermittent feeding assembly includes an L-shaped plate 43 slidably connected to a mounting base 42. A first spring 46 is fixedly installed between the L-shaped plate 43 and the mounting base 42. An abutment plate 45 is slidably connected to the side of the L-shaped plate 43 near the vertical rod 33. A second spring 44 is fixedly connected between the abutment plate 45 and the L-shaped plate 43. The abutment plate 45 has an inclined surface on the side opposite to the rotation direction of the vertical rod 33. In the initial state, the L-shaped plate 43 blocks the feeding hose 41 under the rebound force of the first spring 46. Since the vertical rod 33 rotates forward when digging and transferring soil, and the abutment plate 45 has an inclined surface on the side opposite to its rotation direction, it will directly abut against the abutment plate 45 when the vertical rod 33 rotates forward. This causes the abutment plate 45 and the L-shaped plate 43 to move against the rebound force of the first spring 46, thereby causing the L-shaped plate 43 to slide inside the mounting base 42, exposing the feeding hose 41 and allowing the fertilizer to enter the mixing cylinder 15. Since L-shaped plate 43 is cylindrical, when L-shaped plate 43 moves away from the tangent of mixing cylinder 15, vertical rod 33 will release its contact with abutment plate 45, allowing L-shaped plate 43 to return to its initial state under the rebound force of the first spring 46, thereby sealing the feeding hose 41 until the next vertical rod 33 contacts abutment plate 45 again to connect the feeding hose 41, thus allowing fertilizer to be added intermittently. If vertical rod 33 rotates in the opposite direction, it will contact the inclined surface of abutment plate 45 during the reverse rotation. Due to the pushing force of vertical rod 33 on the inclined surface of abutment plate 45, the pushing force of the inclined surface will drive abutment plate 45 to overcome the rebound force of the second spring 44 and enter the interior of L-shaped plate 43. This allows vertical rod 33 to continue rotating through abutment plate 45 without causing L-shaped plate 43 to move and open mounting base 42. Thus, the intermittent feeding assembly will not be opened during the reverse rotation of vertical rod 33.

[0038] There are two fertilization mechanisms. The mounting box 16 is slidably connected to the sliding plate 14, and the U-shaped rod 25 is slidably connected to the mounting plate 12. The mounting plate 12 is rotatably connected to a bidirectional threaded rod 47. The two threaded ends of the bidirectional threaded rod 47 with opposite directions are threadedly connected to the two U-shaped rods 25 respectively. The bidirectional threaded rod 47 extends out of the mounting plate 12 and is equipped with a handle 48. By rotating the handle 48, the bidirectional threaded rod 47 can be rotated. Since the two threaded sections of the bidirectional threaded rod 47 with opposite directions are threadedly connected to the two U-shaped rods 25 respectively, the rotation of the bidirectional threaded rod 47 will cause the two U-shaped rods 25 to move closer or further apart. This can adjust the distance between the two drill barrels 23, thereby adjusting the gap of deep pit fertilization.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A quantitative fertilization device, comprising a fertilizer bin, wherein a four-legged walking mechanism is installed at the lower end of the fertilizer bin, and an mounting plate is fixedly connected to the center of the lower end of the fertilizer bin, characterized in that: A telescopic cylinder is installed on the upper end of the mounting plate, and the output end of the telescopic cylinder is connected to a sliding plate that slides up and down with the mounting plate. A fertilizer application mechanism is installed on the lower end of the sliding plate. The fertilization mechanism includes a mixing cylinder installed at the lower end of a sliding plate. A mounting box located at the center of the mixing cylinder is installed at the lower end of the sliding plate. A drive motor is installed inside the mounting box, and the output end of the drive motor is connected to a drive gear. A rotating shaft is rotatably connected to the center of the lower end of the mounting box. Several gear grooves meshing with the drive gear are opened on the side of the rotating shaft. A first internal gear ring is rotatably connected to the lower end of the mounting box. A fixing rod is fixedly connected to the lower end of the first internal gear ring. A drill cylinder is fixedly connected to the lower end of the fixing rod. A spiral feeding plate matching the drill cylinder is fixedly connected to the circumference of the rotating shaft. A U-shaped rod is installed at the lower end of the mounting plate and slides vertically with the sliding plate. Both ends of the U-shaped rod are fixedly connected to mounting rings sleeved on the outside of the drill cylinder. A flexible anti-scratch fabric is connected between the mounting rings and the mixing cylinder. A mixing mechanism is installed inside the mixing cylinder. A quantitative feeding mechanism is installed between the fertilizer box and the mixing cylinder.

2. The quantitative fertilization device according to claim 1, characterized in that: The mixing mechanism includes a second internal gear ring rotatably connected to the mixing cylinder. A plurality of first meshing teeth are fixedly connected to the outer side of the first internal gear ring. A transmission gear that meshes with the plurality of first meshing teeth is rotatably connected to the top wall of the mixing cylinder. The second internal gear ring meshes with the transmission gear. A stirring assembly is installed at the lower end of the second internal gear ring.

3. The quantitative fertilization device according to claim 2, characterized in that: The stirring assembly includes several vertical rods fixedly connected to the second internal toothed ring. Each vertical rod is fixedly connected to an inclined rod that tilts towards the center. Several connecting rods are fixedly connected between the inclined rods and the vertical rods. The several connecting rods are rotatably connected to stirring rods that are arranged in an alternating manner.

4. A quantitative fertilization device according to claim 3, characterized in that: The inclined rod is vertically slidably connected to a gravity slide rod, and each of the gravity slide rods is fixedly connected to a limit block at both ends.

5. A quantitative fertilization device according to claim 4, characterized in that: The quantitative feeding mechanism includes two granule metering valves installed at the lower end of the fertilizer tank. A feeding hose connected to the granule metering valves is fixedly installed at the lower end of the fertilizer tank. A mounting base is provided between the feeding hose and the upper part of the mixing cylinder. An intermittent feeding component is installed inside the mounting base.

6. A quantitative fertilization device according to claim 5, characterized in that: The intermittent feeding assembly includes an L-shaped plate slidably connected to the mounting base. A first spring is fixedly installed between the L-shaped plate and the mounting base. An abutment plate is slidably connected to the side of the L-shaped plate near the vertical rod. A second spring is fixedly connected between the abutment plate and the L-shaped plate. An inclined surface is provided on the side of the abutment plate in the opposite direction of rotation of the vertical rod.

7. A quantitative fertilization device according to claim 6, characterized in that: The number of fertilizer application mechanisms is two. The mounting box is slidably connected to the sliding plate, and the U-shaped rod is slidably connected to the mounting plate. A bidirectional threaded rod is rotatably connected inside the mounting plate. The two threaded ends of the bidirectional threaded rod with opposite directions are respectively threaded to the two U-shaped rods. The bidirectional threaded rod extends out of the mounting plate and is equipped with a handle.

8. A quantitative fertilization device according to claim 7, characterized in that: The flexible, scratch-resistant fabric is waterproof Oxford cloth.