Soil fertilizing device for agriculture

Abstract

The invention relates to the technical field of fertilization devices, and discloses an agricultural soil fertilization device which comprises a fixing frame, a push rod is fixedly connected to the inner wall of the fixing frame, a chemical fertilizer box is fixedly connected to the top of the push rod, a first roller is rotatably connected to the inner wall of the fixing frame, and a fixing rod is fixedly connected to the inner wall of the fixing frame. According to the chemical fertilizer spreading device, during spreading, a worker pushes the device to spread chemical fertilizer, a motor on the outer surface of the fixing rod is started to work while spreading is conducted, the motor works to drive the rotating cylinder to rotate through the output end, the rotating cylinder is driven to rotate through the output end, and the chemical fertilizer is spread through the conveying pipe; the fertilizer is prevented from being blocked in the sowing device during use, the waste of the fertilizer caused by uneven sowing is also prevented, the labor intensity of manual operation is reduced, the fertilization efficiency is improved, and the land can better absorb the fertilizer.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fertilizing devices, in particular to an agricultural soil fertilizing device. BACKGROUND

[0002] The existing fertilizing device has obvious defects in efficiency, uniformity, fertilizer utilization rate, precision and environmental adaptability, and cannot meet the development needs of large-scale planting, precision agriculture and green agriculture.

[0003] The patent with the publication number CN216960782U relates to an agricultural soil fertilizing device, which comprises a fertilizer hopper, a push handle, an inclined discharge channel, a cylindrical discharge mechanism and a movable roller. The fertilizer hopper is an open-top box with an inclined inner wall on the right side. The fertilizer in the car body is evenly spread on the land by pushing the car body. The device has the advantages of simple structure and low manufacturing cost. However, the device is prone to uneven fertilization during use, and it is difficult to ensure that the fertilizer is fully absorbed by the soil. Therefore, an agricultural soil fertilizing device is proposed to solve the above problems. SUMMARY

[0004] The application aims to solve the technical problems in the prior art and provides an agricultural soil fertilizing device.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: an agricultural soil fertilizing device, comprising a fixing frame, the inner wall of the fixing frame is fixedly connected with a push rod, the top of the push rod is fixedly connected with a fertilizer box, the inner wall of the fixing frame is rotatably connected with a roller one, the inner wall of the fixing frame is fixedly connected with a fixing rod, the inner wall of the fixing rod is rotatably connected with a rotating cylinder, and the inner wall of the rotating cylinder is fixedly connected with a conveying pipe; when spreading, the staff pushes the equipment to spread fertilizer, and at the same time, the motor on the outer surface of the fixing rod is started to work; the motor works to drive the rotating cylinder to rotate through the output end, so that the rotating cylinder spreads the fertilizer inside to the outside, avoids the blockage of the fertilizer in the spreading device during use, prevents the waste of fertilizer caused by uneven spreading, reduces the labor intensity of manual operation, improves the fertilizing efficiency, makes the land better absorb the fertilizer, and the soil structure is improved, the permeability and water storage capacity of the soil are improved, and the growth and development of crop roots are facilitated; secondly, loosening the soil can enhance the air permeability of the soil, promote microbial activity, help the decomposition and release of nutrients, thereby improving the utilization rate of fertilizer, and at the same time, the loosening plate is limited by the extension rod one during loosening, so as to avoid the deviation of the loosening plate; the inner wall of the fixing rod is provided with a spreading mechanism for spreading fertilizer, and the side of the fixing rod away from the roller one is provided with a jet mechanism for blowing fallen leaves; the fertilizer box is used for storing fertilizer, and the inner wall of the fertilizer box is fixedly connected with the conveying pipe away from the rotating cylinder; the inner wall of the fixing rod is in contact with the circumference of the conveying pipe, the front side of the fixing rod is fixedly connected with a motor, and the output end of the motor is fixedly connected with the front side of the rotating cylinder; the rotating cylinder is used for spreading fertilizer, the loosening plate is used for loosening the soil, the inner wall of the triangular guide plate is provided with a triangular guide groove, and the circumference of the round wheel is in contact with the inner wall guide groove of the triangular guide plate.

[0006] Preferably, the spreading mechanism comprises a fixed plate, the inner wall of the fixed plate is rotationally connected with a spreading plate, the circumferential surface of the spreading plate is fixedly connected with a gear one, the circumferential surface of the rotating cylinder is fixedly connected with a gear ring, while the chemical fertilizer is spread, the rotating cylinder drives the spreading plate to spread the fertilizer farther, so that the fertilizer application efficiency of the chemical fertilizer is higher, the fertilizer can be uniformly spread to a farther distance, thereby reducing repeated work, improving overall work efficiency, reducing the blind area of spreading, and making the spreading effect better; the two sides of the long rod are fixedly connected with a second telescopic rod, the telescopic end of the second telescopic rod is fixedly connected with a pressing plate, the two sides of the second roller are fixedly connected with a disc, the side away from the second roller of the disc is hingedly connected with a connecting rod, when the fertilizer enters the soil, the second roller drives the pressing plate to flatten the loose soil, ensures uniform distribution of the fertilizer, reduces waste caused by uneven spreading, simultaneously helps to improve fertilizer utilization rate and crop yield, improves soil structure, and reduces water and soil loss; the top of the fixed plate is fixedly connected with the bottom of the fixed rod, the circumferential surface of the gear ring is engaged with the circumferential surface of the gear one, the spreading plate is used for rotating and spreading the fertilizer, the left side of the connecting rod is hingedly connected with the telescopic end of the second telescopic rod, and the pressing plate is used for flattening the soil.

[0007] Preferably, the blowing mechanism comprises a threaded rod, the circumferential surface of the threaded rod is threadedly connected with a bulldozing plate, the front and back sides of the threaded rod are fixedly connected with a gear two, the fixed end of the second telescopic rod is fixedly connected with a rack, while the soil is flattened, the pressing plate drives the gear two to move, the gear two is engaged with the rack through the circumferential surface, so that the threaded rod is driven to rotate, the threaded rod drives the bulldozing plate to move, so that the soil or fertilizer adhered to the bottom of the pressing plate is pushed out, avoiding waste of the fertilizer caused by uneven spreading, helping to improve the utilization rate of the fertilizer and the yield of crops, and promoting healthy growth of crops; the side away from the rotating cylinder of the fixed rod is fixedly connected with a gas blowing device, the bottom of the gas blowing device is fixedly and continuously connected with a gas blowing pipe, and the top of the soil loosening plate is fixedly connected with a gas blowing head; while the soil is loosened, the gas blowing device is started by the worker to work, the gas blowing device works to discharge the gas in the device through the output end, and simultaneously, the gas blowing device delivers the gas to the gas blowing head through the gas blowing pipe, at this time, the gas blowing head is opened to blow the bottom of the soil loosening plate, avoiding the problems of water penetration obstruction and poor soil aeration caused by too thick fallen leaf layer, thereby improving the growth efficiency and yield of crops, preventing uneven absorption caused by leaves blocking the fertilizer, and improving the absorption efficiency of the soil on the fertilizer; the circumferential surface of the threaded rod is rotationally connected with the top of the pressing plate, the left side of the rack is engaged with the circumferential surface of the gear two, the inner wall of the bulldozing plate is slidingly connected with the outer surface of the pressing plate, the gas blowing device is used for generating airflow to blow gas, the bottom of the gas blowing pipe is fixedly and continuously connected with the inner wall of the gas blowing head, and the gas blowing pipe is used for delivering airflow.

[0008] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This agricultural soil fertilization device operates through the coordinated movement of a fixed frame, a push rod, roller one, a fertilizer box, a fixed rod, a rotating cylinder, a conveying pipe, a telescopic rod one, a soil loosening plate, a connecting plate, a round wheel, a triangular guide plate, a long rod, and roller two. During application, the operator pushes the device to spread fertilizer. Simultaneously, a motor on the outer surface of the fixed rod is activated. The motor's operation drives the rotating cylinder through its output end, thus spreading the fertilizer inside. This prevents fertilizer from clogging the spreading device and avoids fertilizer waste due to uneven application, reducing manual operation. This reduces labor intensity and improves fertilization efficiency, allowing the soil to better absorb fertilizer. As the rollers rotate, they loosen the soil, preventing it from becoming too hard and hindering fertilizer absorption. This significantly improves soil structure, permeability, and water retention, which is beneficial for crop root growth and development. Furthermore, loosening the soil enhances aeration, promotes microbial activity, and facilitates nutrient decomposition and release, thereby increasing fertilizer utilization. Simultaneously, the loosening board is limited by telescopic rods to prevent displacement.

[0009] 2. This agricultural soil fertilization device, through the coordinated operation of a fixed plate, a spreading plate, a gear, and a gear ring, spreads fertilizer while rotating the cylinder, which in turn drives the spreading plate to spread the fertilizer further, thus increasing the fertilization efficiency. It can evenly spread fertilizer over a greater distance, thereby reducing repetitive work, improving overall work efficiency, reducing blind spots in spreading, and resulting in better spreading effect.

[0010] 3. This agricultural soil fertilization device, through the coordinated operation of the telescopic rod, the pressure plate, the disc, and the connecting rod, when the fertilizer enters the soil, the roller drives the pressure plate to flatten the loose soil, ensuring that the fertilizer is evenly distributed and reducing waste caused by uneven spreading. At the same time, it not only helps to improve fertilizer utilization and crop yield, but also improves soil structure and reduces soil erosion.

[0011] 4. This agricultural soil fertilization device, through the coordinated operation of a threaded rod, a bulldozer plate, a rack, and a second gear, flattens the soil while the pressure plate drives the second gear to move. The second gear meshes with the rack through its circumferential surface, thereby driving the threaded rod to rotate. The rotation of the threaded rod drives the bulldozer plate to move, thus pushing out the soil or fertilizer adhering to the bottom of the pressure plate. This avoids fertilizer waste caused by uneven spreading, which not only helps to improve fertilizer utilization and crop yield, but also promotes the healthy growth of crops.

[0012] 5. This agricultural soil fertilization device, through the coordinated operation of the jetting device, jetting pipe, and jetting head, loosens the soil while the operator activates the jetting device. The jetting device discharges internal gas through its output end, and simultaneously delivers the gas to the jetting head through the jetting pipe. Opening the jetting head then blows air onto the bottom of the loosening plate, preventing water penetration obstruction and poor soil aeration caused by excessively thick leaf layers. This improves crop growth efficiency and yield, and also prevents uneven fertilizer absorption caused by leaves blocking the fertilizer, thus enhancing the soil's fertilizer absorption efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the soil-removing plate structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the spreading plate structure of the present invention; Figure 5 This is a schematic diagram of the pressure plate structure of the present invention; Figure 6 This is a schematic diagram of the bulldozer blade structure of the present invention; Figure 7 This is a schematic diagram of the jet head structure of the present invention.

[0014] In the diagram: 1. Fixed frame; 2. Push rod; 3. Roller 1; 4. Fertilizer box; 5. Fixed rod; 6. Rotating cylinder; 7. Spreading mechanism; 71. Fixed plate; 72. Spreading plate; 73. Gear 1; 74. Gear ring; 75. Telescopic rod 2; 76. Pressure plate; 77. Disc; 78. Connecting rod; 8. Air jet mechanism; 81. Threaded rod; 82. Bulldozer blade; 83. Rack; 84. Gear 2; 85. Air jet device; 86. Air jet pipe; 87. Air jet head; 9. Conveying pipe; 10. Telescopic rod 1; 11. Soil clearing plate; 12. Connecting plate; 13. Round wheel; 14. Triangular guide plate; 15. Long rod; 16. Roller 2. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-7One embodiment of the present invention is: an agricultural soil fertilization device, including a fixed frame 1, a push rod 2 fixedly connected to the inner wall of the fixed frame 1, a fertilizer box 4 fixedly connected to the top of the push rod 2, a roller 3 rotatably connected to the inner wall of the fixed frame 1, a fixed rod 5 fixedly connected to the inner wall of the fixed frame 1, a rotating cylinder 6 rotatably connected to the inner wall of the fixed rod 5, and a conveying pipe 9 fixedly connected to the inner wall of the rotating cylinder 6. After the agricultural soil is treated, nitrogen fertilizer needs to be spread on the land. During spreading, the operator can manually push the push rod 2. The movement of the push rod 2 will move the fixed frame 1, which in turn will move the roller 3. At the same time, the roller 3 will come into contact with the ground and rotate. The rotation of the roller 3 will save manpower for spreading. Meanwhile, the fertilizer box 4 will transport the fertilizer inside to the inner wall of the rotating drum 6 through the delivery pipe 9. At this time, the motor on the outer surface of the fixed rod 5 will start working. The motor will drive the rotating drum 6 to rotate through the output end, thus spreading the fertilizer inside the rotating drum 6. This avoids fertilizer clogging inside the spreading device during use, prevents fertilizer waste caused by uneven spreading, reduces the labor intensity of manual operation, improves fertilization efficiency, and allows the land to better absorb fertilizer. A telescopic rod 10 is fixedly connected to the inner wall of the fixed frame 1. A soil-draining plate 11 is fixedly connected to the telescopic end of the telescopic rod 10. A connecting plate 12 is fixedly connected to the top of the soil-draining plate 11. A round wheel 13 is installed on the side of the connecting plate 12 near the roller 3. Triangular guide plates 14 are fixedly connected to both sides of the roller 3. A long rod 15 is fixedly connected to the circumference of the push rod 2. A roller 16 is rotatably connected to the inner wall of the long rod 15. A spreading mechanism 7 for spreading fertilizer is provided on the inner wall of the fixed rod 5. A useful fertilizer spreading mechanism is provided on the side of the fixed rod 5 away from the roller 3. The system includes an air jet mechanism 8 for blowing away fallen leaves; a fertilizer box 4 for storing fertilizer, with the inner wall of the fertilizer box 4 fixedly connected to the side of the conveying pipe 9 away from the rotating cylinder 6; the inner wall of the fixing rod 5 in contact with the circumferential surface of the conveying pipe 9; a motor fixedly connected to the front side of the fixing rod 5; the output end of the motor fixedly connected to the front side of the rotating cylinder 6; the rotating cylinder 6 for sprinkling fertilizer; a soil loosening plate 11 for loosening the soil; a triangular guide groove on the inner wall of the triangular guide plate 14; and the circumferential surface of the wheel 13 in contact with the guide groove on the inner wall of the triangular guide plate 14. While moving, the rotation of roller 3 will drive the triangular guide plate 14 to rotate. The rotation of the triangular guide plate 14 will cause it to contact the circumferential surface of the wheel 13 through the guide groove on the inner wall, thereby driving the wheel 13 to move back and forth. The movement of the wheel 13 will drive the connecting plate 12 to move back and forth, and the connecting plate 12 will drive the loosening plate 11 to move back and forth. This allows the loosening plate 11 to loosen the sown soil, preventing the soil from being too hard and hindering fertilizer absorption. It significantly improves the soil structure, increases the soil permeability and water retention capacity, and is beneficial to the growth and development of crop roots. Secondly, by loosening the soil, the soil permeability can be enhanced, promoting microbial activity and helping to decompose and release nutrients, thereby improving fertilizer utilization. At the same time, while the loosening plate 11 is loosening, it will be limited by the telescopic rod 10 to prevent the loosening plate 11 from deviating.

[0017] Working principle: During sowing, the motor on the outer surface of the fixed rod 5 drives the rotating cylinder 6 to rotate, thereby spreading the fertilizer inside the rotating cylinder 6. This prevents the fertilizer from clogging inside the sowing device during use, improving fertilization efficiency and allowing the soil to better absorb the fertilizer. While moving, the rotation of the roller 3 will drive the loosening plate 11 to loosen the sown soil, preventing the soil from being too hard and hindering fertilizer absorption. This significantly improves the soil structure, increases soil permeability and water retention capacity, thereby improving fertilizer utilization.

[0018] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, the spreading mechanism 7 includes a fixed plate 71, a spreading plate 72 is rotatably connected to the inner wall of the fixed plate 71, a gear 73 is fixedly connected to the circumferential surface of the spreading plate 72, and a toothed ring 74 is fixedly connected to the circumferential surface of the rotating cylinder 6. While spreading fertilizer, the rotating cylinder 6 rotates, which drives the gear ring 74 to rotate. The rotation of the gear ring 74 meshes with the circumferential surface of the gear 73, thereby driving the gear 73 to rotate. The rotation of the gear 73 drives the spreading plate 72 to rotate, so that the spreading plate 72 spreads the fertilizer further, making the fertilizer application efficiency higher. It can spread the fertilizer evenly over a greater distance, thereby reducing repetitive operations, improving overall operation efficiency, reducing spreading blind spots, and making the spreading effect better. Telescopic rods 75 are fixedly connected to both sides of long rod 15. A pressure plate 76 is fixedly connected to the telescopic end of telescopic rod 75. A disc 77 is fixedly connected to both sides of roller 16. A connecting rod 78 is hinged to the side of disc 77 away from roller 16. The top of fixed plate 71 is fixedly connected to the bottom of fixed rod 5. The circumferential surface of toothed ring 74 meshes with the circumferential surface of gear 73. Spreading plate 72 is used to rotate and spread fertilizer. The left side of connecting rod 78 is hinged to the telescopic end of telescopic rod 75. Pressure plate 76 is used to flatten the soil. Once the fertilizer enters the soil, roller 16 moves via long rod 15. Simultaneously, the rotation of roller 16 drives disc 77 to rotate. The rotation of disc 77 drives connecting rod 78 to reciprocate via hinge point. Connecting rod 78 drives telescopic rod 75 to reciprocate via hinge point. The reciprocating extension and retraction of telescopic rod 75 drives pressing plate 76 to flatten the loose soil, ensuring even distribution of fertilizer and reducing waste caused by uneven spreading. This not only helps improve fertilizer utilization and crop yield but also improves soil structure and reduces soil erosion.

[0019] Working principle: While spreading fertilizer, the rotating drum 6 drives the spreading plate 72 to spread the fertilizer further, making the fertilizer application more efficient and able to spread the fertilizer evenly over a greater distance, thereby reducing repetitive work and improving overall work efficiency; after the fertilizer enters the soil, the roller 16 drives the pressing plate 76 to flatten the loose soil, ensuring that the fertilizer is evenly distributed, reducing waste caused by uneven spreading, and also improving soil structure and reducing soil erosion.

[0020] The jet mechanism 8 includes a threaded rod 81, a bulldozer plate 82 is threadedly connected to the circumferential surface of the threaded rod 81, gears 84 are fixedly connected to the front and rear sides of the threaded rod 81, and a rack 83 is fixedly connected to the fixed end of the telescopic rod 75. While the soil is being compacted, the reciprocating movement of the compactor plate 76 drives the reciprocating movement of the threaded rod 81, which in turn drives the reciprocating movement of the gear 84. The reciprocating movement of the gear 84 engages with the rack 83 through its circumferential surface, causing the gear 84 to rotate. The gear 84 then drives the threaded rod 81 to rotate, and the rotation of the threaded rod 81 contacts the bulldozer plate 82 through the threaded groove on its circumferential surface, causing the bulldozer plate 82 to move. This allows the bulldozer plate 82 to push out the soil or fertilizer adhering to the bottom of the compactor plate 76, avoiding fertilizer waste caused by uneven spreading. This not only helps to improve fertilizer utilization and crop yield but also promotes healthy crop growth. A jetting device 85 is fixedly connected to the side of the fixed rod 5 away from the rotating cylinder 6. A jetting pipe 86 is fixedly connected to the bottom of the jetting device 85. A jetting head 87 is fixedly connected to the top of the soil-dredging plate 11. The circumferential surface of the threaded rod 81 is rotatably connected to the top of the pressure plate 76. The left side of the rack 83 meshes with the circumferential surface of the gear 84. The inner wall of the bulldozing plate 82 is slidably connected to the outer surface of the pressure plate 76. The jetting device 85 is used to generate airflow for jetting. The bottom of the jetting pipe 86 is fixedly connected to the inner wall of the jetting head 87, and the jetting pipe 86 is used to transport airflow. While loosening the soil, the worker can activate the jetting device 85. The jetting device 85 will discharge the gas inside the device through the output end. At the same time, the jetting device 85 will deliver the gas to the jetting head 87 through the jetting pipe 86. At this time, opening the jetting head 87 will blow air to the bottom of the loosening plate 11, thereby blowing away leaves and other impurities. This avoids the problem of water penetration obstruction and poor soil aeration caused by an excessively thick layer of fallen leaves, thereby improving the growth efficiency and yield of crops. It also prevents uneven absorption of fertilizer caused by leaves blocking the fertilizer, thus improving the soil's absorption efficiency of fertilizer.

[0021] Working principle: While flattening the soil, the pressing plate 76 drives the bulldozing plate 82 to push out the soil or fertilizer adhering to the bottom of the pressing plate 76, avoiding fertilizer waste caused by uneven spreading. This not only helps to improve fertilizer utilization and crop yield, but also promotes healthy crop growth. While loosening the soil, the jetting device 85 drives the jetting head 87 to blow air onto the bottom of the loosening plate 11, thereby blowing away impurities such as leaves. This avoids problems such as water penetration obstruction and poor soil aeration caused by an excessively thick layer of fallen leaves, thereby improving crop growth efficiency and yield. The jetting device 85 sprays high-pressure gas, which is powerful enough to blow away impurities such as leaves.

[0022] This invention provides a soil fertilization device for agriculture. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. An agricultural soil fertilization device, comprising a fixing frame (1), characterized in that: The inner wall of the fixed frame (1) is fixedly connected to a push rod (2), the top of the push rod (2) is fixedly connected to a fertilizer box (4), the inner wall of the fixed frame (1) is rotatably connected to a roller (3), the inner wall of the fixed frame (1) is fixedly connected to a fixed rod (5), the inner wall of the fixed rod (5) is rotatably connected to a rotating cylinder (6), the inner wall of the rotating cylinder (6) is fixedly connected to a conveying pipe (9), the inner wall of the fixed frame (1) is fixedly connected to a telescopic rod (10), the telescopic end of the telescopic rod (10) is fixedly connected to a soil-draining plate (11), the top of the soil-draining plate (11) is fixedly connected to a connecting plate (12), a round wheel (13) is installed on the side of the connecting plate (12) near the roller (3), the two sides of the roller (3) are fixedly connected to triangular guide plates (14), the circumferential surface of the push rod (2) is fixedly connected to a long rod (15), and the inner wall of the long rod (15) is rotatably connected to a roller (16).

2. The soil fertilization device for agriculture according to claim 1, characterized in that: The inner wall of the fixed rod (5) is provided with a spreading mechanism (7) for spreading fertilizer, and the side of the fixed rod (5) away from the roller (3) is provided with a jetting mechanism (8) for blowing away fallen leaves.

3. The soil fertilization device for agriculture according to claim 2, characterized in that: The fertilizer box (4) is used to store fertilizer, and the inner wall of the fertilizer box (4) is fixedly connected to the side of the conveying pipe (9) away from the rotating cylinder (6). The inner wall of the fixing rod (5) is in contact with the circumferential surface of the conveying pipe (9). A motor is fixedly connected to the front side of the fixing rod (5), and the output end of the motor is fixedly connected to the front side of the rotating cylinder (6). The rotating cylinder (6) is used to sprinkle fertilizer. The loosening plate (11) is used to loosen the soil. The inner wall of the triangular guide plate (14) is provided with a triangular guide groove, and the circumferential surface of the wheel (13) is in contact with the guide groove on the inner wall of the triangular guide plate (14).

4. The soil fertilization device for agriculture according to claim 3, characterized in that: The spreading mechanism (7) includes a fixed plate (71), a spreading plate (72) is rotatably connected to the inner wall of the fixed plate (71), a gear (73) is fixedly connected to the circumferential surface of the spreading plate (72), and a gear ring (74) is fixedly connected to the circumferential surface of the rotating cylinder (6).

5. An agricultural soil fertilization device according to claim 4, characterized in that: The long rod (15) is fixedly connected to two sides of a telescopic rod (75), and the telescopic end of the telescopic rod (75) is fixedly connected to a pressure plate (76). The two sides of the roller (16) are fixedly connected to a disc (77), and a connecting rod (78) is hinged to the side of the disc (77) away from the roller (16).

6. The soil fertilization device for agriculture according to claim 5, characterized in that: The top of the fixing plate (71) is fixedly connected to the bottom of the fixing rod (5), the circumferential surface of the toothed ring (74) meshes with the circumferential surface of the gear one (73), the spreading plate (72) is used to rotate and spread fertilizer, the left side of the connecting rod (78) is hinged to the telescopic end of the telescopic rod two (75), and the pressure plate (76) is used to flatten the soil.

7. An agricultural soil fertilization device according to claim 6, characterized in that: The jet mechanism (8) includes a threaded rod (81), a bulldozer plate (82) is threadedly connected to the circumferential surface of the threaded rod (81), a gear (84) is fixedly connected to the front and rear sides of the threaded rod (81), and a rack (83) is fixedly connected to the fixed end of the telescopic rod (75).

8. An agricultural soil fertilization device according to claim 7, characterized in that: The fixed rod (5) is fixedly connected to the jet device (85) on the side away from the rotating cylinder (6), the bottom of the jet device (85) is fixedly connected to the jet pipe (86), and the top of the soil-dredging plate (11) is fixedly connected to the jet head (87).

9. An agricultural soil fertilization device according to claim 8, characterized in that: The circumferential surface of the threaded rod (81) is rotatably connected to the top of the pressure plate (76), the left side of the rack (83) meshes with the circumferential surface of the gear two (84), the inner wall of the bulldozer plate (82) is slidably connected to the outer surface of the pressure plate (76), the jet device (85) is used to generate airflow for jetting, the bottom of the jet pipe (86) is fixedly connected to the inner wall of the jet head (87), and the jet pipe (86) is used to transport airflow.

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