A method for reducing nitrogen and phosphorus loss in tea garden soil

Abstract

The present invention relates to the technical field of soil improvement, and discloses a method for reducing the loss of nitrogen and phosphorus in tea garden soil, comprising the following specific steps: S1. The material pipe is driven by a motor so that the material pipe penetrates into the deep soil layer, S2. When the motor drives the material pipe to move upward, the push rod is pushed to push the tip of the tube by the push rod, so that the closed tip of the tube is separated, so that the biochar in the material pipe falls into the deep hole, and then the push rod and the tip of the tube are reset, so that the bottom of the material pipe is closed again; S3. The material pipe is moved upward and reset, so that the material pipe opens the rotating piece that closes the discharge port, so that the upper end of the material pipe is inserted into the silo through the discharge port to supplement the biochar. Repeat the above steps to bury the biochar deeply in the tea garden soil, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

Description

Technical Field

[0001] The invention relates to the technical field of soil improvement, in particular to a method for reducing nitrogen and phosphorus loss in tea garden soil. Background Art

[0002] Reducing the loss of nitrogen and phosphorus from tea garden soil can be achieved through the following methods: 1. Increasing organic matter: Applying organic fertilizers such as compost, green manure or decomposed animal manure can increase the organic matter content of the soil, thereby enhancing the soil's water retention capacity and reducing nitrogen and phosphorus loss; 2. Improving soil structure: By increasing the air permeability and water retention capacity of the soil, the loss of nitrogen and phosphorus caused by rainwater erosion can be reduced, for example, by using biochar or materials that improve soil structure; 3. Reasonable fertilization: Avoid excessive application of chemical fertilizers, especially nitrogen and phosphorus fertilizers. When applying fertilizers, you can adopt a phased application method to meet the actual needs of tea trees and reduce fertilizer loss; 4. Cover crops: Planting cover crops (such as legumes) in tea gardens can effectively reduce soil erosion and reduce nitrogen and phosphorus loss. At the same time, cover crops can also provide additional organic matter; in addition, there are methods such as adjusting planting density, implementing farmland soil and water conservation measures, and monitoring soil and water quality, which can effectively reduce the loss of nitrogen and phosphorus from tea garden soil, protect soil quality, and promote the healthy growth of tea trees.

[0003] Biochar is often used to improve soil structure. Biochar is a carbonaceous material with rich micropores. It can significantly improve soil structure, mainly through the following aspects: Improve the physical properties of the soil: The micropores of biochar can increase the porosity of the soil, improve the aeration of the soil, maintain the moisture of the soil, and make the soil more suitable for the growth of plant roots; Improve the chemical properties of the soil: Biochar can adsorb organic matter, mineral nutrients, heavy metals and other substances in the soil to prevent their loss, improve soil fertility, regulate the pH of the soil, and provide a more suitable growth environment for plants; Improve the biological properties of the soil: Biochar provides a good habitat for microorganisms in the soil, can promote the reproduction of beneficial microorganisms, inhibit the growth of harmful microorganisms, increase the biodiversity of the soil, and is conducive to the healthy growth of plants. In addition, biochar can also improve the stress resistance of plants, enhance plant immunity, and reduce the occurrence of diseases, thereby further promoting the healthy growth of plants.

[0004] At present, when the existing technology uses biochar to improve the soil structure of a tea garden, the biochar is usually spread on the soil surface, and then appropriate tillage and turning are carried out to ensure that the biochar is evenly distributed in the soil. However, when the biochar is spread on the soil surface, it is difficult to mix the deep soil with the biochar, which makes the deep soil of the tea garden prone to nitrogen and phosphorus loss; therefore, it does not meet the existing needs. In this regard, we propose a method for reducing nitrogen and phosphorus loss in tea garden soil. Summary of the invention

[0005] The present invention provides a method for reducing nitrogen and phosphorus loss in tea garden soil, which has the beneficial effect of facilitating mixing of deep soil with biochar, thereby reducing nitrogen and phosphorus loss in the deep soil of the tea garden. It solves the problem mentioned in the above background technology that when the prior art uses biochar to improve the soil structure of a tea garden, the biochar is usually spread on the soil surface, and then appropriate tillage and turning are carried out to ensure that the biochar is evenly distributed in the soil. However, when the biochar is spread on the soil surface, it is difficult to mix the deep soil with the biochar, thereby making the deep soil of the tea garden prone to nitrogen and phosphorus loss.

[0006] The present invention provides the following technical solution: a method for reducing nitrogen and phosphorus loss in tea garden soil, comprising the following specific steps:

[0007] S1. Drilling holes in tea garden soil: The motor drives the material tube to rotate and descend at the same time, so that the lower end of the material tube penetrates into the deep layer of the tea garden soil, thereby forming deep holes in the tea garden soil;

[0008] S2. Landfilling of biochar: The material tube is filled with biochar, and when the motor drives the material tube to move upward, the push rod is abutted against the push rod, so that the push rod pushes and rotates the tube tip installed at the bottom of the material tube, and the two tube tips that are closed together are opened, so that the biochar in the material tube falls into the deep hole, and then the push rod and the tube tip are reset, so that the bottom of the material tube is closed again;

[0009] S3. Supplementation of biochar: the material pipe is moved upward and reset, so that the material pipe opens the rotating piece that closes the discharge port, and the upper end of the material pipe is inserted into the material silo storing biochar through the discharge port, so that the biochar in the material silo falls into the material pipe to supplement the biochar. The above steps are repeated to bury the biochar deeply in the soil of the tea garden, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0010] As an optional solution to the method for reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, it includes a vehicle body, a shell is installed on the outside of the vehicle body, the material pipe is inserted into the shell, a limit block is installed on the outside of the material pipe, the number of the limit blocks is set to be several, and a thread groove is opened on the inner wall of the shell, the thread groove is slidably matched with the limit block, and the limit block is slidably inserted in the thread groove.

[0011] As an optional solution to the method for reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, wherein: a first gear is sleeved on the middle part of the material pipe, a slider is installed on the inner ring of the first gear, the number of the sliders is set to be several, a slide groove is opened on the side of the material pipe, the number of the slide grooves is the same as the number of the sliders, the sliders are slidably inserted in the corresponding slide grooves, and a connecting ring is installed on the bottom of the shell, and the connecting ring is slidably clamped on the upper side of the first gear.

[0012] As an optional solution to the method for reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, the motor is installed on the outside of the vehicle body, the output shaft of the motor is equipped with a second gear, and the second gear is meshed with the first gear.

[0013] As an optional scheme for the method of reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, the number of the tube tips is set to two, and the two tube tips are rotatably installed at the bottom of the material tube through a torsion spring, the two tube tips are symmetrically arranged and closed to each other to close the bottom end of the material tube, the number of the push rods is also set to two, the two push rods are arranged inside the material tube, and the bottoms of the two push rods are respectively rotatably connected to the two tube tips, the upper ends of the push rods are arranged outside the material tube, and a limiting ring is also installed on the inner wall of the material tube, the number of the limiting rings is also set to two, and the two push rods are respectively slidably inserted in the two limiting rings.

[0014] As an optional solution to the method for reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, a baffle is rotatably arranged at the bottom of the silo, the number of the baffles is set to be several, the baffle is arranged at the lower side of the discharge port, and the push rod intermittently conflicts with the baffle.

[0015] As an optional scheme for the method of reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, wherein: a circular ring is rotatably installed on the inner side of the silo, the baffles are arranged inside the circular ring, and tooth segments are arranged on the outer side of the baffles, the inner ring of the circular ring is provided with a first tooth groove, and the tooth segment is meshed with the first tooth groove, a second gear is rotatably arranged on the inner side of the silo, and the outer ring of the circular ring is provided with a second tooth groove, and the second gear is meshed with the second tooth groove.

[0016] As an optional scheme for the method of reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, wherein: a rotating shaft is installed in the middle of the second gear, the rotating shaft is inserted into the bottom of the silo, the lower end of the rotating shaft is arranged outside the silo, a first bevel gear is installed at the bottom of the rotating shaft, a support rod is installed on the outside of the silo, the support rod is arranged in an "L" shape, a straight rod is rotatably installed at the end of the support rod, a second bevel gear is installed at the end of the straight rod, and the second bevel gear is meshed with the first bevel gear.

[0017] As an optional scheme for the method of reducing nitrogen and phosphorus loss in tea garden soil described in the present invention, the fourth gear is sleeved on the middle part of the straight rod, the side part of the vehicle body is provided with a rack intermittently meshing with the fourth gear, a slide bar is installed on the outer side of the rack, the side part of the vehicle body is provided with a groove body used in conjunction with the slide bar, the slide bar is slidably inserted in the groove body on the side part of the vehicle body, a spring is provided on the inner side of the vehicle body, the two ends of the spring are respectively connected to the rack and the inner wall of the vehicle body, a disc is installed in the middle part of the material tube, and the disc intermittently interferes with the rack.

[0018] The present invention has the following beneficial effects:

[0019] 1. The method for reducing nitrogen and phosphorus loss in tea garden soil is as follows: the material tube is rotated and descended at the same time, so that the lower end of the material tube penetrates into the deep layer of the tea garden soil, thereby forming a deep hole in the tea garden soil; the material tube is filled with biochar; when the material tube moves upward, the push rod abuts against the baffle plate, so that the push rod moves downward relative to the material tube, so that the push rod pushes the tube tip downward, so that the two tube tips that are closed together are separated, and the torsion spring connecting the tube tips is compressed to open the bottom of the material tube, so that the biochar in the material tube falls into the deep hole; then, the baffle plates are separated from each other to expose the material outlet, and at the same time, the baffle plate is released from the abutment against the push rod, so that the push rod and the tube tip are reset under the action of the torsion spring rebound force, and the bottom of the material tube is closed again;

[0020] The material pipe continues to move upward and reset, so that the top of the material pipe pushes the rotating piece that closes the discharge port upward, so that the upper end of the material pipe is inserted into the silo through the discharge port, so that the biochar stored in the silo falls into the material pipe to replenish the biochar. The above steps are repeated to bury the biochar deeply in the soil of the tea garden, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0021] 2. The method for reducing nitrogen and phosphorus loss in tea garden soil is as follows: when the motor drives the material tube inserted into the deep soil layer to rotate and move upward, the material tube drives the push rod to contact the baffle, thereby opening the tube tip and releasing the biochar in the material tube. In this process, the disc pushes the rack upward, and the spring is compressed, and the second bevel gear is driven to rotate through the meshing of the rack and the fourth gear, and then the first bevel gear is driven to rotate the third gear through the meshing of the second bevel gear and the first bevel gear, and the third gear drives the ring to rotate, and the meshing of the first tooth groove and the tooth segment drives a plurality of baffles to rotate and separate, and the baffle is released from the resistance of the push rod, so that the push rod and the tube tip are restored and closed to close the material tube;

[0022] The material pipe continues to move upward, and the teeth on the rack separate from the fourth gear, causing the fourth gear to stop rotating, and the top of the material pipe is inserted into the silo to replenish biochar. When the motor drives the material pipe to drop again, the rebound force of the spring drives the rack to drop and reset, and the rack and the fourth gear are meshed again, so that the baffle closes and resets, and the discharge port is closed, which is convenient for deep burial and replenishment of biochar in the material pipe, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0023] 3. The method for reducing nitrogen and phosphorus loss in tea garden soil is as follows: the motor drives the second gear to rotate, and the first gear is engaged with the second gear, so that the first gear drives the material pipe to rotate together. At the same time, the material pipe drives the limit block to rotate in the thread groove. The limit block and the thread groove are used in coordination, and the slider slides in the slide groove, so that the rotating material pipe descends, so that the material pipe drills holes in the tea garden soil, which is convenient for inserting the material pipe into the deep soil layer of the tea garden to bury the biochar. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0027] Figure 4 It is a schematic diagram of the cutaway structure of the present invention.

[0028] Figure 5 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the material tube of the present invention.

[0030] Figure 7 It is a schematic diagram of the thread groove structure of the present invention.

[0031] Figure 8 It is a schematic diagram of the tube tip opening structure of the present invention.

[0032] Fig. 9 It is a schematic diagram of the closing structure of the baffle of the present invention.

[0033] Fig.10 It is a schematic diagram of the baffle separation structure of the present invention.

[0034] Fig.11 It is a schematic diagram of the rotating plate closing structure of the present invention.

[0035] In the figure: 100, motor; 110, material tube; 120, push rod; 130, tube tip; 140, material outlet; 150, rotating plate; 160, material bin; 170, vehicle body; 171, housing; 172, stop block; 173, thread groove; 180, first gear; 181, slider; 182, slide groove; 183, connecting ring; 184, second gear; 185, stop ring; 186, baffle; 190, circular ring; 191, tooth segment; 192, first tooth groove; 193, third gear; 194, second tooth groove; 200, rotating shaft; 201, first bevel gear; 202, support rod; 203, second bevel gear; 204, straight rod; 210, fourth gear; 211, rack; 212, slide bar; 213, spring; 214, disc. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: This example aims to solve the problem that when biochar is used to improve the soil structure of tea gardens in the prior art, the biochar is usually spread on the soil surface, and then appropriate tillage and soil turning are carried out to ensure that the biochar is evenly distributed in the soil. However, when the biochar is spread on the soil surface, it is difficult to mix the deep soil with the biochar, which makes the deep soil of the tea garden prone to nitrogen and phosphorus loss. Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig.11 , a method for reducing nitrogen and phosphorus loss in tea garden soil, comprising the following specific steps:

[0038] S1. Drilling tea garden soil: The material pipe 110 is driven by the motor 100 to rotate and descend at the same time, so that the lower end of the material pipe 110 penetrates into the deep layer of the tea garden soil, thereby forming a deep hole in the tea garden soil;

[0039] S2. Landfilling of biochar: The material tube 110 is filled with biochar. When the motor 100 drives the material tube 110 to move upward, the push rod 120 pushes and rotates the tube tip 130 installed at the bottom of the material tube 110, and the two tube tips 130 that are closed together are opened, so that the biochar in the material tube 110 falls into the deep hole. Then, the push rod 120 and the tube tip 130 are reset, so that the bottom of the material tube 110 is closed again;

[0040] S3. Supplementation of biochar: the material pipe 110 is moved upward and reset, so that the material pipe 110 opens the rotating piece 150 that closes the discharge port 140, and the upper end of the material pipe 110 is inserted into the material bin 160 storing biochar through the discharge port 140, so that the biochar in the material bin 160 falls into the material pipe 110, and the biochar is supplemented. The above steps are repeated to bury the biochar deeply in the soil of the tea garden, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0041] The number of tube tips 130 is set to two, and the two tube tips 130 are rotatably installed at the bottom of the material tube 110 through a torsion spring. The two tube tips 130 are symmetrically arranged and closed to each other, so as to close the bottom end of the material tube 110. The number of push rods 120 is also set to two, and the two push rods 120 are both arranged inside the material tube 110, and the bottoms of the two push rods 120 are respectively rotatably connected to the two tube tips 130, and the upper ends of the push rods 120 are both arranged outside the material tube 110. A limiting ring 185 is also fixedly installed on the inner wall of the material tube 110. The number of limiting rings 185 is also set to two, and the two push rods 120 are respectively slidably inserted in the two limiting rings 185 to limit the movement of the push rods 120, so that the push rods 120 can be lifted and lowered more smoothly.

[0042] A baffle 186 is provided at the bottom of the silo 160 by rotating with rivets. The number of baffles 186 is set to be several. The baffle 186 is set at the lower side of the discharge port 140 to close the discharge port 140. The top of the push rod 120 intermittently contacts the baffle 186. The rotating plate 150 is set to rotate in one direction so that the rotating plate 150 can only rotate upward.

[0043] In this embodiment: the material tube 110 is rotated and descended at the same time, so that the lower end of the material tube 110 penetrates into the deep layer of the tea garden soil, thereby forming a deep hole in the tea garden soil, and the material tube 110 is filled with biochar. When the material tube 110 moves up, the push rod 120 abuts against the baffle 186, so that the push rod 120 moves downward relative to the material tube 110, so that the push rod 120 pushes the tube tip 130 downward, so that the two mutually closed tube tips 130 are separated, and the torsion spring connecting the tube tips 130 is compressed to open the bottom of the material tube 110, so that the biochar in the material tube 110 falls into the deep hole, and then, the baffles 186 are separated from each other to expose the discharge port 140, and at the same time, the baffle 186 is released from the abutment of the push rod 120, so that the push rod 120 and the tube tip 130 are reset under the action of the torsion spring rebound force, and the bottom of the material tube 110 is closed again;

[0044] The material pipe 110 continues to move upward and reset, so that the top end of the material pipe 110 pushes upward the rotating piece 150 that closes the discharge port 140, so that the upper end of the material pipe 110 is inserted into the silo 160 through the discharge port 140, so that the biochar stored in the silo 160 falls into the material pipe 110 to replenish the biochar, and the above steps are repeated to bury the biochar deeply in the soil of the tea garden, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden, and solving the problem as much as possible that when the existing technology uses biochar to improve the soil structure of the tea garden, the biochar is usually spread on the soil surface, and then appropriate tillage and turning the soil are carried out to ensure that the biochar is evenly distributed in the soil. However, when the biochar is spread on the soil surface, it is difficult to mix the deep soil with the biochar, thereby making the deep soil of the tea garden prone to nitrogen and phosphorus loss.

[0045] Embodiment 2: This embodiment is intended to solve the problem that it is inconvenient to open and close the tube tip 130, which makes it inconvenient to bury and replenish the biochar in the material tube 110, and thus it is inconvenient to reduce the loss of nitrogen and phosphorus in the deep soil of the tea garden. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 , Fig. 9 and Fig.10 A circular ring 190 is rotatably installed on the inner side of the silo 160, and the baffles 186 are arranged inside the circular ring 190. A tooth segment 191 is fixedly arranged on the outer side of the baffles 186. The inner ring of the circular ring 190 is provided with a first tooth groove 192, and the tooth segment 191 is meshed with the first tooth groove 192. A third gear 193 is rotatably arranged on the inner side of the silo 160 through a bearing, and the outer ring of the circular ring 190 is provided with a second tooth groove 194, and the third gear 193 is meshed with the second tooth groove 194.

[0046] A rotating shaft 200 is fixedly installed in the middle of the third gear 193, and the rotating shaft 200 is inserted into the bottom of the silo 160. The lower end of the rotating shaft 200 is arranged outside the silo 160, and a first bevel gear 201 is fixedly installed on the bottom of the rotating shaft 200. A support rod 202 is fixedly installed on the outer wall of the silo 160. The support rod 202 is set in an "L" shape. A straight rod 204 is rotatably installed on the end of the support rod 202, and a second bevel gear 203 is fixedly installed on the end of the straight rod 204. The second bevel gear 203 is meshed with the first bevel gear 201.

[0047] A fourth gear 210 is sleeved in the middle of the straight rod 204, a rack 211 intermittently meshing with the fourth gear 210 is provided on the side of the vehicle body 170, a slide bar 212 is fixedly installed on the outer side of the rack 211, a groove body used in conjunction with the slide bar 212 is opened on the side of the vehicle body 170, the slide bar 212 is slidably inserted in the groove body on the side of the vehicle body 170, a spring 213 is provided on the inner side of the vehicle body 170, and two ends of the spring 213 are respectively fixedly connected to the rack 211 and the inner wall of the vehicle body 170, a disc 214 is fixedly sleeved in the middle of the material tube 110, and the disc 214 intermittently conflicts with the rack 211.

[0048] In this embodiment: when the motor 100 drives the material tube 110 inserted into the deep soil layer to rotate and move upward, the material tube 110 drives the push rod 120 to contact the baffle 186, thereby opening the tube tip 130 and releasing the biochar in the material tube 110. In this process, the disc 214 pushes the rack 211 upward, and the spring 213 is compressed, and the second bevel gear 203 is driven to rotate through the meshing of the rack 211 and the fourth gear 210, and then the first bevel gear 201 is meshed with the second bevel gear 203, so that the first bevel gear 201 drives the third gear 193 to rotate, and the third gear 193 drives the ring 190 to rotate, and through the meshing of the first tooth groove 192 and the tooth segment 191, a plurality of baffles 186 are driven to rotate and separate, and the baffle 186 is released from the resistance of the push rod 120, so that the push rod and the tube tip 130 are restored and closed to close the material tube 110;

[0049] The material pipe 110 continues to move upward, and the teeth on the rack 211 separate from the fourth gear 210, so that the fourth gear 210 stops rotating, and the top of the material pipe 110 is inserted into the silo 160 to replenish biochar. When the motor 100 drives the material pipe 110 to descend again, the rebound force of the spring 213 drives the rack 211 to descend and reset, and the rack 211 and the fourth gear 210 are meshed again, so that the baffle 186 is closed and reset, and the discharge port 140 is closed, so as to facilitate the deep burial and replenishment of biochar in the material pipe 110, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0050] Embodiment 3: This embodiment is intended to further promote the solution of the problem that it is inconvenient to insert the material tube 110 into the deep soil layer of the tea garden. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8A method for reducing nitrogen and phosphorus loss in tea garden soil includes a vehicle body 170, which is set as an agricultural vehicle. A shell 171 is fixedly installed on the outside of the vehicle body 170, a material pipe 110 is movably inserted in the inside of the shell 171, and a limit block 172 is fixedly installed on the outside of the material pipe 110. The number of the limit blocks 172 is set to be several. A thread groove 173 is opened on the inner wall of the shell 171. The thread groove 173 and the limit block 172 are both slidably matched, and the limit block 172 is slidably inserted in the thread groove 173.

[0051] A first gear 180 is sleeved on the middle part of the material tube 110, and a slider 181 is fixedly installed on the inner ring of the first gear 180. The number of the sliders 181 is set to be several. A slide groove 182 is opened on the side of the material tube 110. The number of the slide grooves 182 is the same as the number of the sliders 181. The sliders 181 are slidably inserted in the corresponding slide grooves 182, so that the first gear 180 can drive the material tube 110 to rotate. A connecting ring 183 is fixedly installed on the bottom of the shell 171. The connecting ring 183 is slidably engaged on the upper side of the first gear 180, so that the first gear 180 is rotatably set below the shell 171 through the connecting ring 183.

[0052] The motor 100 is fixedly mounted on the outside of the vehicle body 170, and the output shaft of the motor 100 is fixedly mounted with a second gear 184, which meshes with the first gear 180. The material pipe 110 is always located in the housing 171, and the lower half of the material pipe 110 is inserted into the deep layer of the tea garden soil.

[0053] In this embodiment: the motor 100 drives the second gear 184 to rotate, and through the meshing of the second gear 184 and the first gear 180, the first gear 180 drives the material pipe 110 to rotate together. At the same time, the material pipe 110 drives the limit block 172 to rotate in the thread groove 173. Through the coordinated use of the limit block 172 and the thread groove 173, and the sliding block 181 slides in the slide groove 182, the rotating material pipe 110 descends, so that the material pipe 110 drills holes in the soil of the tea garden, which is convenient for inserting the material pipe 110 into the deep soil layer of the tea garden to bury the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for reducing nitrogen and phosphorus loss in tea garden soil, characterized in that: The specific steps include: S1. Drilling holes in the tea garden soil: The motor (100) drives the material pipe (110) to rotate and descend at the same time, so that the lower end of the material pipe (110) penetrates into the deep layer of the tea garden soil, thereby forming a deep hole in the tea garden soil; S2. Landfilling of biochar: the material tube (110) is filled with biochar, and when the motor (100) drives the material tube (110) to move upward, the push rod (120) pushes and rotates the tube tip (130) installed at the bottom of the material tube (110), and the two tube tips (130) that are closed together are opened, so that the biochar in the material tube (110) falls into the deep hole, and then the push rod (120) and the tube tip (130) are reset, so that the bottom of the material tube (110) is closed again; S3. Supplementation of biochar: the material pipe (110) is moved upward and reset, so that the material pipe (110) opens the rotating piece (150) that closes the discharge port (140), so that the upper end of the material pipe (110) is inserted into the material bin (160) storing biochar through the discharge port (140), so that the biochar in the material bin (160) falls into the material pipe (110), and the biochar is supplemented. The above steps are repeated to bury the biochar deeply in the soil of the tea garden, and then through subsequent operations such as turning the soil, the deep soil of the tea garden is mixed with the biochar, thereby reducing the loss of nitrogen and phosphorus in the deep soil of the tea garden; In the method, a vehicle body (170) is used, a shell (171) is installed on the outside of the vehicle body (170), the material tube (110) is inserted into the inside of the shell (171), a limit block (172) is installed on the outside of the material tube (110), the number of the limit blocks (172) is set to be a plurality, a thread groove (173) is opened on the inner wall of the shell (171), the thread groove (173) and the limit block (172) are slidably matched, and the limit block (172) is slidably inserted in the thread groove (173); A first gear (180) is sleeved on the middle of the material tube (110), a slider (181) is installed on the inner ring of the first gear (180), the number of the sliders (181) is set to be a plurality, a slide groove (182) is opened on the side of the material tube (110), the number of the slide grooves (182) is the same as the number of the sliders (181), the sliders (181) are slidably inserted in the corresponding slide grooves (182), and a connecting ring (183) is installed on the bottom of the housing (171), and the connecting ring (183) is slidably engaged with the upper side of the first gear (180); The motor (100) is mounted outside the vehicle body (170); the output shaft of the motor (100) is mounted with a second gear (184); the second gear (184) is meshed with the first gear (180).

2. A method for reducing nitrogen and phosphorus loss in tea garden soil according to claim 1, characterized in that: The number of the tube tips (130) is set to two, and the two tube tips (130) are rotatably mounted on the bottom of the material tube (110) via a torsion spring. The two tube tips (130) are symmetrically arranged and closed to each other to seal the bottom end of the material tube (110). The number of the push rods (120) is also set to two, and the two push rods (120) are arranged inside the material tube (110). The bottoms of the two push rods (120) are respectively rotatably connected to the two tube tips (130). The upper ends of the push rods (120) are arranged outside the material tube (110). A limiting ring (185) is also installed on the inner wall of the material tube (110). The number of the limiting rings (185) is also set to two, and the two push rods (120) are respectively slidably inserted in the two limiting rings (185).

3. A method for reducing nitrogen and phosphorus loss in tea garden soil according to claim 1, characterized in that: A baffle (186) is rotatably provided at the bottom of the silo (160), the number of the baffles (186) being set to be a plurality, the baffles (186) being arranged at the lower side of the discharge port (140), and the push rod (120) intermittently abutting against the baffles (186).

4. A method for reducing nitrogen and phosphorus loss in tea garden soil according to claim 3, characterized in that: A circular ring (190) is rotatably mounted inside the material bin (160), the baffles (186) are arranged inside the circular ring (190), tooth segments (191) are arranged outside the baffles (186), the inner ring of the circular ring (190) is provided with a first tooth groove (192), the tooth segment (191) meshes with the first tooth groove (192), a third gear (193) is rotatably mounted inside the material bin (160), the outer ring of the circular ring (190) is provided with a second tooth groove (194), the third gear (193) meshes with the second tooth groove (194).

5. A method for reducing nitrogen and phosphorus loss in tea garden soil according to claim 4, characterized in that: A rotating shaft (200) is installed in the middle of the third gear (193), the rotating shaft (200) is plugged into the bottom of the silo (160), the lower end of the rotating shaft (200) is arranged outside the silo (160), a first bevel gear (201) is installed at the bottom of the rotating shaft (200), a support rod (202) is installed outside the silo (160), the support rod (202) is arranged in an "L" shape, a straight rod (204) is rotatably installed at the end of the support rod (202), a second bevel gear (203) is installed at the end of the straight rod (204), and the second bevel gear (203) is meshed with the first bevel gear (201).

6. A method for reducing nitrogen and phosphorus loss in tea garden soil according to claim 5, characterized in that: A fourth gear (210) is sleeved on the middle of the straight rod (204), a rack (211) intermittently meshing with the fourth gear (210) is arranged on the side of the vehicle body (170), a slide bar (212) is installed on the outer side of the rack (211), a groove body for use with the slide bar (212) is opened on the side of the vehicle body (170), the slide bar (212) is slidably inserted in the groove body on the side of the vehicle body (170), a spring (213) is arranged on the inner side of the vehicle body (170), two ends of the spring (213) are respectively connected to the rack (211) and the inner wall of the vehicle body (170), and a disc (214) is installed in the middle of the material tube (110), and the disc (214) intermittently conflicts with the rack (211).

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