Biochar-based conditioner fertilizing device for saline-alkali greenhouse soil

Abstract

The invention discloses a biochar-based conditioner fertilization device for saline-alkali facility soil, and relates to the technical field of agriculture, the biochar-based conditioner fertilization device comprises a connecting table, and further comprises a soil fertilization mechanism located at the top of the connecting table and used for assisting fertilization operation; the device has the beneficial effects that the soil fertilization mechanism, the soil detection mechanism, the self-powered mechanism and the shovel type furrow opener are arranged, universal wheels guarantee flexible movement of the device, and accurate improvement of salinization facility soil is achieved through the processes of detection, furrowing, fertilization and re-detection; according to the scheme, aiming at the characteristics that the biochar-based conditioner is porous and can easily adsorb water, through the design of heating dehumidification, anti-sticking coating, stirring and anti-caking and the like, the conveying uniformity of the conditioner is guaranteed, meanwhile, the application amount is accurately controlled in combination with soil detection data, and the soil quality is improved. The advantages of adsorbing salt and improving the soil structure of the biochar-based conditioner are fully exerted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural technology, in particular to a biochar-based conditioner fertilizing device for salinization facility soil. BACKGROUND

[0002] Due to the problems of continuous cropping, excessive use of chemical fertilizers, and irrigation water quality, the salinization phenomenon of facility agriculture (such as greenhouses and big sheds) is becoming increasingly prominent, and has become a key factor restricting crop yield and quality. Salinized facility soil has the characteristics of high salt content, high pH value, hard soil structure, and low nutrient availability, which not only affects the growth of crop roots and nutrient absorption, but also leads to an imbalance of soil microbial communities, further exacerbating soil degradation.

[0003] At present, biochar-based conditioners are widely used in salinized soil improvement due to their advantages of improving soil structure, adsorbing salt, adjusting soil pH value, and improving soil fertility.

[0004] Chinese Patent Publication No. CN 114793577 B discloses a biochar and conditioner fertilizing device for improving acidification of sweet potato land, which comprises a mobile frame, a fertilizing execution unit, a mixing storage tank, and a horizontal stirring cylinder. The mobile frame has a horizontal stirring cylinder installed at the upper end of the middle part. The front end of the mobile frame is provided with a fertilizing execution unit. The mixing storage tank is installed on the upper end surface of the mobile frame and is connected to the fertilizing execution unit and the horizontal stirring cylinder at the front and rear ends, respectively. The present application can optimize and improve the acidification of sweet potato land by using different proportions of biochar and conditioner, avoid the adverse effects of large-scale application of conditioners on soil environmental quality, and increase the improvement effect on acidified soil compared to single application of biochar and conditioner.

[0005] However, the above-mentioned scheme still has the following problems:

[0006] The function is single, most of which only has the function of ditching and fertilizing, lacks soil quality detection equipment before and after fertilizing, cannot accurately judge the effect of conditioner application, and cannot realize on-demand fertilizing;

[0007] The power is dependent on external power supply, which is limited in applicability in the scene where power supply is not convenient in facility agriculture, and the energy consumption is large, the use cost is high;

[0008] The conditioner is prone to damp and caking during transportation, affecting the uniformity of fertilizing, and the ditching mechanism lacks flexibility, which is difficult to adapt to different depths and widths of fertilizing requirements, and cannot meet the normal use requirements.

[0009] Therefore, the present application needs to design a biochar-based conditioner fertilization device for saline-alkaline facility soil to solve the above problems. SUMMARY

[0010] The present application aims to provide a multifunctional fertilization device integrating soil detection, precise fertilization and self-power supply, and adapting to the characteristics of biochar-based conditioner, to solve the problems of low efficiency and poor effect of saline-alkaline facility soil improvement.

[0011] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a biochar-based conditioner fertilization device for saline-alkaline facility soil, comprising a connecting table, further comprising:

[0012] The soil fertilization mechanism is located at the top of the connecting table and is used to assist the fertilization operation;

[0013] The soil detection mechanism is located on one side of the connecting table and is used to detect the soil quality before and after fertilization;

[0014] The self-power supply mechanism is located above the soil fertilization mechanism and is used to supply power to the whole device;

[0015] The shovel opener is located on one side of the connecting table and is symmetrically arranged and used to excavate the soil;

[0016] The soil fertilization mechanism comprises a conditioner treatment box, the top of the connecting table is fixedly connected with the conditioner treatment box, the bottom of the conditioner treatment box is fixedly connected with a discharging pipe penetrating through the connecting table, the bottom of the discharging pipe is fixedly connected with a heating cylinder, the bottom of the heating cylinder is fixedly connected with a fertilization pipe, one end of the heating cylinder is provided with an auxiliary scraper, the soil detection mechanism comprises a support cross plate, one side of the connecting table away from the shovel opener is fixedly connected with the support cross plate, the inside of the support cross plate is provided with a fixing frame, the bottom of the fixing frame is fixedly connected with a discharging cylinder, the inside of the discharging cylinder is provided with a discharging channel, one side of the fixing frame is provided with an auxiliary fertilization box, the inside of the auxiliary fertilization box is provided with soil detectors distributed at equal intervals.

[0017] As a preferred embodiment of the present application, the self-power supply mechanism comprises a solar panel, the top of the conditioner treatment box is fixedly connected with an electricity storage bin, the top of the electricity storage bin is provided with a solar panel, one side of the solar panel is fixedly connected with a charging controller and an inverter, and the inside of the solar panel is provided with an integrated circuit.

[0018] As a preferred one of the embodiments of the present application, the bottom of the connecting table and on one side of the heating cylinder is fixedly connected with a diaphragm pump, the top of the connecting table and on one side of the conditioner treatment box is installed with a second driving motor, the output end of the second driving motor is installed with a worm gear reducer, both ends of the worm gear reducer are installed with swing rods, one side of each of the swing rods is rotatably connected with a swing plate, and one side of each of the swing plates is connected with a corresponding shovel opener.

[0019] As a preferred one of the embodiments of the present application, the side of the fixed frame close to the discharging cylinder is fixedly connected with a first driving motor, the output end of the first driving motor is fixedly connected with a rotating shaft, one end of the top of the rotating shaft is fixedly connected with a driving pulley, the outside of the driving pulley is sleeved with a transmission belt, the transmission belt is located outside the reciprocating screw rod, and a driven pulley is installed inside the transmission belt and outside the reciprocating screw rod.

[0020] As a preferred one of the embodiments of the present application, both sides of the connecting table are fixedly connected with two symmetrically distributed fixed clamping plates, and each of the fixed clamping plates is installed with a universal wheel inside.

[0021] As a preferred one of the embodiments of the present application, the top of the fixed frame is fixedly connected with a fertilizer storage tank, the top of the fertilizer storage tank is installed with an externally connected discharging pipeline, and one end of the externally connected discharging pipeline extends into the discharging cylinder and is connected with the discharging channel.

[0022] As a preferred one of the embodiments of the present application, the side of the supporting horizontal plate away from the connecting table is fixedly connected with symmetrically distributed illuminating lamps, and the two sides of the auxiliary fertilizer box are fixedly connected with symmetrically distributed installed sensors.

[0023] As a preferred one of the embodiments of the present application, the outside of the conditioner treatment box is fixedly connected with a control panel, and the power storage bin, the solar panel, the charging controller, the inverter, the illuminating lamp, the first valve, the first driving motor, the diaphragm pump, the second valve, the second driving motor, the worm gear reducer, the ultraviolet sterilization lamp tube, the installed sensor, the soil detector and the electric telescopic rod are electrically connected with the control panel.

[0024] As a preferred embodiment of the present application, the two sides of the conditioner treatment box are fixedly connected with fertilizer tank positioning plates, and the interiors of the fertilizer tank positioning plates are threadedly connected with first positioning bolts which are equidistantly distributed and extend to the inner walls of the connecting tables.

[0025] As a preferred embodiment of the present application, the bottom of the second driving motor is fixedly connected with a motor mounting plate, and the top of the motor mounting plate is threadedly connected with second positioning bolts which are equidistantly distributed and extend to the inner walls of the connecting tables.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] The soil fertilization mechanism, soil detection mechanism, self-power supply mechanism and shovel opener are provided, the solar panel absorbs light energy and converts it into direct current, the voltage and current are adjusted by the charging controller and then stored in the power storage bin, the inverter converts the direct current into alternating current to supply power to various electrical equipment, realizing self-sufficient power supply; the second driving motor drives the swing rod to swing through the worm and gear reducer, and then drives the swing plate to drive the shovel opener to overturn, so that the ditching depth and width can be flexibly adjusted to adapt to the ditching needs of different facility soils; the biochar-based conditioner is stored in the conditioner treatment box, enters the heating cylinder through the discharging pipeline, the heating cylinder can prevent the conditioner from being damp and caked, the auxiliary scraper ensures that the conditioner falls uniformly, and finally the conditioner is accurately applied into the opened ditch through the fertilizer pipeline; at the same time, the fertilizer storage tank can supplement the auxiliary fertilizer through the discharging channel, and the first valve controls the discharging amount; the first driving motor drives the reciprocating screw rod to rotate through the transmission belt, drives the limit sliding block to move up and down, and then adjusts the height of the auxiliary fertilizer box through the rotating connecting rod, the control panel receives signals and processes them, generates corresponding control signals according to the preset control algorithm, the universal wheel guarantee device moves flexibly, and through the processes of detection, ditching, fertilization and re-detection, the accurate improvement of the saline-alkaline facility soil is realized; the conditioner treatment box can be provided with an anti-caking stirring assembly, which cooperates with the heating cylinder to adapt to the particle size and water absorption of the biochar-based conditioner, preventing the conditioner from being damp and agglomerating; the soil detector includes a salinity sensor, an organic matter content sensor and a pH value sensor, which detects the core indexes of the saline-alkaline facility soil, the above-mentioned scheme is designed according to the characteristics of the biochar-based conditioner, such as porosity and easy water absorption, through heating and dehumidification, anti-sticking coating and stirring anti-caking, the uniformity of the conditioner delivery is guaranteed, and the application amount is accurately controlled in combination with the soil detection data, fully exerting the advantages of the biochar-based conditioner in adsorbing salt and improving soil structure. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure of the biochar-based conditioner fertilization device for saline-alkaline facility soil Figure 1 ;

[0029] Figure 2This is a schematic diagram of the overall structure of a biochar-based conditioner fertilizer application device for saline-alkali soils according to the present invention. Figure 2 ;

[0030] Figure 3 This is an enlarged schematic diagram of the soil fertilization mechanism of a biochar-based conditioner fertilization device for saline-alkali soils according to the present invention. Figure 1 ;

[0031] Figure 4 This is an enlarged schematic diagram of the soil fertilization mechanism of a biochar-based conditioner fertilization device for saline-alkali soils according to the present invention. Figure 2 ;

[0032] Figure 5 This is an enlarged schematic diagram of the soil testing mechanism of a biochar-based conditioner fertilizer application device for saline-alkali facility soil according to the present invention.

[0033] Figure 6 This invention relates to a biochar-based conditioner fertilizer application device for saline-alkali soil. Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0034] Figure 7 This invention relates to a biochar-based conditioner fertilizer application device for saline-alkali soil. Figure 4 Enlarged schematic diagram of the structure at point B in the diagram.

[0035] In the picture:

[0036] 1. Connecting platform; 11. Fixing clamp; 12. Casters; 13. Control panel; 14. Battery compartment; 15. Solar panel; 16. Charging controller; 17. Inverter; 18. Fertilizer box positioning plate; 19. First positioning bolt;

[0037] 2. Support plate; 21. Mounting slot; 22. Lighting lamp; 23. Discharge cylinder; 24. Discharge channel; 25. First valve; 26. First drive motor; 27. Rotating shaft; 28. Drive pulley; 29. ​​Transmission belt;

[0038] 3. Conditioner processing tank; 31. Diaphragm pump; 32. Auxiliary scraper; 33. Discharge pipe; 34. Second valve; 35. Heating cylinder; 36. Fertilizer application pipe;

[0039] 4. Shovel-type trencher; 41. Swing plate; 42. Second drive motor; 43. Worm gear reducer; 44. Swing rod; 45. Motor mounting plate; 46. Second positioning bolt;

[0040] 5. Lead screw positioning block; 51. Reciprocating lead screw; 52. Driven pulley; 53. Limit slider; 54. Auxiliary fertilizer box; 55. Ultraviolet germicidal lamp tube; 56. Rotating connecting rod; 57. Sensor mounting; 58. Soil detector;

[0041] 6. Fertilizer storage tank; 61. Electric telescopic rod; 62. External discharge pipe; 63. Fixing frame. Detailed Implementation

[0042] 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.

[0043] Please see Figures 1-7 The present invention provides a technical solution: a biochar-based conditioner fertilizer application device for saline-alkali soil, comprising a connecting platform 1, and further comprising:

[0044] A soil fertilization mechanism is located on top of the connecting platform 1 and is used to assist in fertilization operations.

[0045] A soil testing agency is located on one side of the connecting platform 1 and is used to test the soil quality before and after fertilization.

[0046] The self-powered mechanism is located above the soil fertilization mechanism and is used to power the entire device.

[0047] The shovel-type trencher 4 is located on one side of the connecting platform 1 and is symmetrically arranged and used for excavating the soil.

[0048] The soil fertilization mechanism in this scheme includes a conditioner treatment box 3. The conditioner treatment box 3 is fixedly connected to the top of the connecting platform 1. The bottom of the conditioner treatment box 3 is fixedly connected to a discharge pipe 33 that passes through the connecting platform 1. The bottom of the discharge pipe 33 is fixedly connected to a heating cylinder 35. The bottom of the heating cylinder 35 is fixedly connected to a fertilization pipe 36. An auxiliary scraper 32 is installed at one end of the heating cylinder 35. The soil testing mechanism includes a support plate 2. The support plate 2 is fixedly connected to the side of the connecting platform 1 away from the shovel-type trencher 4. A fixing frame 63 is provided inside the support plate 2. A discharge cylinder 23 is fixedly connected to the bottom of the fixing frame 63. A discharge channel 24 is installed inside the discharge cylinder 23. An auxiliary fertilization box 54 is installed on one side of the fixing frame 63. Soil detectors 58 are evenly distributed inside the auxiliary fertilization box 54.

[0049] Please see Figures 1-7In this scheme, the self-powered mechanism includes a solar panel 15. A storage tank 14 is fixedly connected to the top of the conditioner treatment box 3. The solar panel 15 is installed on the top of the storage tank 14. A charging controller 16 and an inverter 17 are fixedly connected to one side of the solar panel 15. The charging controller 16 is located on one side of the inverter 17. When light shines on the solar panel 15, the integrated circuit inside the solar panel 15 absorbs light energy, excites electrons and generates current. These currents are collected by the integrated circuit and converted into direct current. The charging controller 16 is used to manage the electrical energy generated by the photovoltaic panel and regulate the voltage and current to ensure the safe charging of the battery. The inverter 17 converts the direct current into AC power for the equipment, thereby achieving self-sufficiency in power resources, saving overall power consumption to a certain extent, and facilitating effective cost control.

[0050] Please see Figures 1-7 In this scheme, a diaphragm pump 31 is fixedly connected to the bottom of the connecting platform 1 and to one side of the heating cylinder 35. A second drive motor 42 is installed on the top of the connecting platform 1 and to one side of the conditioner treatment box 3. A worm gear reducer 43 is installed at the output end of the second drive motor 42. A swing rod 44 is installed at both ends of the worm gear reducer 43. A swing plate 41 is rotatably connected to one side of each swing rod 44. One side of each swing plate 41 is connected to the corresponding shovel-type furrow opener 4. The second drive motor 42 is set to a dual-output type, that is, a bidirectional worm gear structure, which realizes that only one motor is set to drive two shovel-type furrow openers 4 to rotate normally, in conjunction with subsequent normal fertilization treatment.

[0051] In this design, two lead screw positioning blocks 5 are fixedly connected to the side of the fixed frame 63 away from the discharge cylinder 23. A reciprocating lead screw 51 is rotatably connected between the two lead screw positioning blocks 5. A limit slider 53 is threadedly connected to the outer side of the reciprocating lead screw 51. Multiple rotating connecting rods 56 are rotatably connected to the bottom of the limit slider 53. One end of the bottom of each of the multiple rotating connecting rods 56 is connected to the auxiliary fertilizer box 54. Ultraviolet germicidal lamps 55 are fixedly connected at equal intervals inside the auxiliary fertilizer box 54. The ultraviolet germicidal lamps 55 and the soil detector 58 are staggered.

[0052] Please see Figures 1-6In this design, a first drive motor 26 is fixedly connected to the side of the fixed frame 63 near the discharge cylinder 23. A rotating shaft 27 is fixedly connected to the output end of the first drive motor 26. A drive pulley 28 is fixedly connected to the top end of the rotating shaft 27. A transmission belt 29 is sleeved on the outside of the drive pulley 28. The transmission belt 29 is located outside the reciprocating screw 51. A driven pulley 52 is installed inside the transmission belt 29 and outside the reciprocating screw 51. The driven pulley 52 is fixedly connected to the reciprocating screw 51. The driven pulley 52 is connected to the drive pulley 28 through the transmission belt 29. The fixed frame 63 has an internal opening. The device includes a limit guide rail with a sliding block inside. One side of the sliding block is connected to the limit slider 53. The limit guide rail and the sliding block limit the movement trajectory of the limit slider 53. With subsequent normal reset, the first drive motor 26 rotates, driving the rotating shaft 27 to rotate. Under the transmission of the transmission belt 29, the reciprocating screw 51 rotates, thereby driving the limit slider 53 to move downward, thus adjusting the height of the auxiliary fertilizer box 54 until it matches the detection height of the soil detector 58. This improves the flexibility of the device and meets the efficiency of soil detection before and after fertilization in different operating scenarios.

[0053] In this scheme, a fertilizer storage tank 6 is fixedly connected to the top of the support plate 2 fixing frame 63. An external discharge pipe 62 is installed on the top of the fertilizer storage tank 6. One end of the external discharge pipe 62 extends into the discharge cylinder 23 and is connected to the discharge channel 24. The external discharge pipe 62 is made of corrugated pipe to ensure that it can be stretched. A first valve 25 is fixedly connected to the bottom outer side of the discharge channel 24. The first valve 25 is used to control the opening and closing of the discharge channel 24.

[0054] Please see Figures 1-7 In this scheme, symmetrically distributed lighting lamps 22 are fixedly connected to the side of the support plate 2 away from the connecting platform 1, and symmetrically distributed installation sensors 57 are fixedly connected to both sides of the auxiliary fertilizer box 54. The installation sensors 57 can be replaced with corresponding sensors as needed, which improves the flexibility of the equipment during use. The lighting lamps 22 are used to assist in on-site lighting.

[0055] In this design, the outer side of the conditioner treatment tank 3 is fixedly connected to a control panel 13, an energy storage compartment 14, a solar panel 15, a charging controller 16, an inverter 17, a lighting lamp 22, a first valve 25, a first drive motor 26, a diaphragm pump 31, a second valve 34, a second drive motor 42, a worm gear reducer 43, an ultraviolet germicidal lamp 55, a mounting sensor 57, a soil detector 58, and an electric telescopic rod 61. All of these components are electrically connected to the control panel 13. The control panel 13 is used to control the energy storage compartment 14, the solar panel 15, the charging controller 16, the inverter 17, a lighting lamp 22, a first valve 25, a first drive motor 26, a diaphragm pump 31, a second valve 34, a second drive motor 42, a worm gear reducer 43, an ultraviolet germicidal lamp 55, a mounting sensor 57, a soil detector 58, and an electric telescopic rod 61. The system comprises a controller 16, an inverter 17, a lighting lamp 22, a first valve 25, a first drive motor 26, a diaphragm pump 31, a second valve 34, a second drive motor 42, a worm gear reducer 43, an ultraviolet germicidal lamp 55, a sensor 57, a soil detector 58, and an electric telescopic pole 61. This system enables unified management of electrical equipment. The corresponding sensors measure environmental parameters, convert them into signals, and send them to the control panel 13. The control panel 13 receives and processes the signals, generating corresponding control signals based on a preset control algorithm.

[0056] Please see Figures 1-7 In this design, two symmetrically distributed fixed clamping plates 11 are fixedly connected to both sides of the connecting platform 1. Each fixed clamping plate 11 is equipped with casters 12. Two of the fixed clamping plates 11 are located below the supporting cross plate 2, and the other two are located below the swing plate 41. The casters 12 facilitate the movement of the entire device to the desired work location, improving the ease of movement.

[0057] In this design, the supporting horizontal plate 2 has an internal mounting groove 21 for mounting with the fixing bracket 63. Both sides of the conditioner treatment box 3 are fixedly connected to fertilizer box positioning plates 18. The fertilizer box positioning plates 18 are threaded with first positioning bolts 19 that are evenly distributed and extend to the inner wall of the connecting platform 1. The conditioner treatment box 3 and the connecting platform 1 are reinforced and connected by the fertilizer box positioning plates 18 and the first positioning bolts 19, thereby improving the installation stability of the equipment and facilitating the individual disassembly of local equipment during equipment inspection and maintenance.

[0058] In this scheme, the bottom of the second drive motor 42 is fixedly connected to a motor mounting plate 45. The motor mounting plate 45 is located on the top of the connecting platform 1 and on one side of the conditioner treatment box 3. The top of the motor mounting plate 45 is threaded with second positioning bolts 46 that are evenly distributed and extend to the inner wall of the connecting platform 1. The multiple second positioning bolts 46 and the motor mounting plate 45 work together to reinforce the connection between the second drive motor 42 and the connecting platform 1, thereby ensuring the normal operation of the shovel trencher 4.

[0059] Please see Figures 1-7 The working principle of this invention is as follows:

[0060] It is equipped with a soil fertilization mechanism, a soil testing mechanism, a self-powered mechanism, and a shovel-type trencher 4. When using it, open the control panel 13:

[0061] Self-powered principle: Solar panel 15 absorbs light energy and converts it into direct current. After the voltage and current are regulated by charging controller 16, it is stored in energy storage compartment 14. Inverter 17 converts direct current into alternating current to power various electrical devices, thus achieving self-sufficiency in electricity.

[0062] The trenching operation principle: The second drive motor 42 drives the swing rod 44 to swing through the worm gear reducer 43, which in turn drives the swing plate 41 to rotate the shovel trencher 4. The trenching depth and width can be flexibly adjusted to meet the trenching needs of different facilities and soils.

[0063] Fertilization operation principle: Biochar-based conditioner is stored in conditioner processing tank 3, and enters heating cylinder 35 through feeding pipe 33. Heating cylinder 35 can prevent conditioner from getting damp and clumping. Auxiliary scraper 32 ensures that conditioner falls evenly. Finally, it is accurately applied into the prepared trench through fertilization pipe 36. At the same time, fertilizer storage tank 6 can be supplemented with auxiliary fertilizer through discharge channel 24, and first valve 25 controls the discharge amount.

[0064] Soil testing principle: The first drive motor 26 drives the reciprocating screw 51 to rotate through the transmission belt 29, which drives the limit slider 53 to move up and down. Then, the height of the auxiliary fertilizer box 54 is adjusted by rotating the connecting rod 56, so that the soil detector 58 contacts the soil. The ultraviolet germicidal lamp 55 can sterilize and clean the soil in the detection area and the detector probe. The sensor 57 is installed to help collect environmental parameters, so as to achieve accurate detection of soil salinity, nutrient and other indicators before and after fertilization.

[0065] The control panel 13 is used to control the operation of the energy storage compartment 14, solar panel 15, charging controller 16, inverter 17, lighting lamp 22, first valve 25, first drive motor 26, diaphragm pump 31, second valve 34, second drive motor 42, worm gear reducer 43, ultraviolet germicidal lamp 55, installation sensor 57, soil detector 58, and electric telescopic pole 61, realizing unified management of power equipment. The corresponding sensors measure environmental parameters, convert them into signals, and send them to the control panel 13. The control panel 13 receives the signals and processes them, generating corresponding control signals according to the preset control algorithm. The casters 12 ensure flexible movement of the device. Through the process of detection, ditching, fertilization, and re-detection, the precise improvement of soil in saline-alkali facilities is achieved.

[0066] The conditioner processing box 3 may be equipped with an anti-caking stirring component. The anti-caking stirring component is matched with the heating cylinder 35 and is adapted to the particle size and water absorption of the biochar-based conditioner to prevent the conditioner from becoming damp and agglomerating.

[0067] The soil detector 58 includes a salinity sensor, an organic matter content sensor, and a pH sensor, which are used to detect key indicators of soil in salinized facilities.

[0068] The self-powered mechanism is electrically connected to the control panel 13, and can dynamically adjust the power distribution according to the power consumption of each mechanism to ensure the continuous and stable operation of soil testing and fertilization.

[0069] The inner wall of the feeding pipe 33 is coated with polytetrafluoroethylene non-stick coating. The pipe diameter is 5-10cm and it is suitable for biochar-based conditioners with a particle size range of 0.1-5mm. The inner wall of the heating cylinder 35 is equipped with a heating plate. The heating temperature of the heating cylinder 35 is controlled at 30-50℃, which prevents the conditioner from getting damp and clumping, and avoids high temperature from damaging the active ingredients of the biochar-based conditioner.

[0070] The shovel-type trencher 4 adopts a dual-drive linkage structure, which achieves synchronous rotation through the second drive motor 42 and the worm gear reducer 43. The trenching depth can be steplessly adjusted within the range of 5-20cm to adapt to the improvement needs of different tillage layers of facility soil.

[0071] The soil testing agency and the soil fertilization agency can achieve data linkage through the control panel 13, and automatically adjust the amount of conditioner applied according to the test results of the soil detector 58 to achieve precision fertilization;

[0072] The top of the conditioner processing box 3 may be equipped with a feeding port, and the inner side of the feeding port is equipped with a screen with a mesh size of 0.1mm, which is used to filter large particulate impurities in the biochar-based conditioner; the conditioner processing box 3 may be equipped with a humidity sensor, which is linked with the heating cylinder 35. When the humidity of the conditioner exceeds 15%, the heating cylinder 35 will automatically start heating and dehumidifying.

[0073] The bottom of the fertilizer application pipe 36 can be equipped with a diversion nozzle with a nozzle diameter of 1-3mm, which can evenly disperse the biochar-based conditioner into the soil and avoid excessive local concentration that would affect the improvement effect. The above solution takes into account the porous and moisture-absorbing characteristics of biochar-based conditioners. Through heating and dehumidification, anti-stick coating, and stirring to prevent clumping, the uniformity of conditioner delivery is ensured. At the same time, the application amount is precisely controlled by combining soil test data to give full play to the advantages of biochar-based conditioners in adsorbing salt and improving soil structure.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biochar-based conditioner fertilizer application device for saline-alkali soil, comprising a connecting platform (1), characterized in that, Also includes: The soil fertilization mechanism is located on the top of the connecting platform (1) and is used for the fertilization operation of biochar-based conditioner. The soil fertilization mechanism includes a conditioner processing box (3). The bottom of the conditioner processing box (3) is connected in sequence to a feeding pipe (33) that passes through the connecting platform (1), a heating cylinder (35) and a fertilization pipe (36). One end of the heating cylinder (35) is equipped with an auxiliary scraper (32). The soil testing mechanism is located on one side of the connecting platform (1) and is used for soil quality testing before and after fertilization. The soil testing mechanism includes a supporting horizontal plate (2) and a fixed frame (63) located inside it. The bottom of the fixed frame (63) is connected to the discharge cylinder (23). The discharge cylinder (23) is provided with a discharge channel (24). The auxiliary fertilizer box (54) assembled on one side of the fixed frame (63) is provided with a soil detector (58). The self-powered mechanism is located above the soil fertilization mechanism and provides self-power to the device; The shovel-type trencher (4) is symmetrically arranged on one side of the connecting platform (1) and is used for soil excavation operations.

2. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 1, characterized in that: The self-powered mechanism includes a solar panel (15), and a storage compartment (14) is fixedly connected to the top of the conditioner treatment box (3). A solar panel (15) is installed on the top of the storage compartment (14). A charging controller (16) and an inverter (17) are fixedly connected to one side of the solar panel (15). An integrated circuit is provided inside the solar panel (15).

3. The biochar-based conditioner fertilizer application device for saline-alkali soil according to claim 2, characterized in that: A diaphragm pump (31) is fixedly connected to the bottom of the connecting platform (1) and to one side of the heating cylinder (35). A second drive motor (42) is installed on the top of the connecting platform (1) and to one side of the conditioner treatment tank (3). A worm gear reducer (43) is installed at the output end of the second drive motor (42). A swing rod (44) is installed at both ends of the worm gear reducer (43). A swing plate (41) is rotatably connected to one side of each swing rod (44). One side of each swing plate (41) is connected to a corresponding shovel trencher (4). Two lead screw positioning blocks (5) are fixedly connected to the side of the fixed frame (63) away from the discharge cylinder (23). A reciprocating lead screw (51) is rotatably connected between the two lead screw positioning blocks (5). A limit slider (53) is threadedly connected to the outer side of the reciprocating lead screw (51). Multiple rotating connecting rods (56) are rotatably connected to the bottom of the limit slider (53). One end of the bottom of each of the multiple rotating connecting rods (56) is connected to the auxiliary fertilizer box (54). Ultraviolet germicidal lamps (55) are fixedly connected inside the auxiliary fertilizer box (54).

4. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 3, characterized in that: The fixed frame (63) is fixedly connected to a first drive motor (26) on the side near the discharge cylinder (23). The output end of the first drive motor (26) is fixedly connected to a rotating shaft (27). The top end of the rotating shaft (27) is fixedly connected to a drive pulley (28). A transmission belt (29) is sleeved on the outside of the drive pulley (28). The transmission belt (29) is located outside the reciprocating screw (51). A driven pulley (52) is installed inside the transmission belt (29) and outside the reciprocating screw (51). The driven pulley (52) is fixedly connected to the reciprocating screw (51). The driven pulley (52) is connected to the drive pulley (28) through the transmission belt (29).

5. The biochar-based conditioner fertilizer application device for saline-alkali soil according to claim 1, characterized in that: Two symmetrically distributed fixing plates (11) are fixedly connected to both sides of the connecting platform (1), and universal wheels (12) are installed inside the fixing plates (11).

6. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 4, characterized in that: The top of the supporting horizontal plate (2) and the fixed frame (63) is fixedly connected to a fertilizer storage tank (6). An external discharge pipe (62) is installed on the top of the fertilizer storage tank (6). One end of the external discharge pipe (62) extends into the discharge cylinder (23) and is connected to the discharge channel (24).

7. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 6, characterized in that: The supporting horizontal plate (2) is fixedly connected with symmetrically distributed lighting lamps (22) on the side away from the connecting platform (1), and the auxiliary fertilizer box (54) is fixedly connected with symmetrically distributed installation sensors (57) on both sides.

8. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 7, characterized in that: The conditioner treatment box (3) is fixedly connected to a control panel (13). The battery storage box (14), solar panel (15), charging controller (16), inverter (17), lighting lamp (22), first valve (25), first drive motor (26), diaphragm pump (31), second valve (34), second drive motor (42), worm gear reducer (43), ultraviolet germicidal lamp (55), installation sensor (57), soil detector (58) and electric telescopic rod (61) are all electrically connected to the control panel (13).

9. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 8, characterized in that: Both sides of the conditioning agent treatment box (3) are fixedly connected to fertilizer box positioning plates (18), and the inside of the fertilizer box positioning plates (18) are threaded with first positioning bolts (19) that are evenly distributed and extend to the inner wall of the connecting platform (1).

10. The biochar-based conditioner fertilizer application device for saline-alkali facility soil according to claim 8, characterized in that: The bottom of the second drive motor (42) is fixedly connected to a motor mounting plate (45), and the top of the motor mounting plate (45) is threaded with second positioning bolts (46) that are evenly distributed and extend to the inner wall of the connecting platform (1).

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