Broccoli continuous cropping soil microorganism regulation equipment and method thereof

Abstract

The invention provides a broccoli continuous cropping soil microorganism adjusting device and method. The device comprises a machine box, a moving mechanism, a soil operating mechanism and a fungicide applying mechanism. A moving mechanism is arranged at the bottom of the case and controls the case to move through the moving mechanism, a soil operating mechanism is arranged at the position, directly facing soil, of the bottom of the case and used for breaking soil, detecting and covering soil, and a fungicide applying mechanism is arranged in the case and used for storing and releasing various microbial drugs; the soil operating mechanism comprises a conversion disc, a ground breaking plough, a soil detector and a covering device; the fungicide applying mechanism comprises a medicine storage tank, a mixing cavity, a liquid fungicide feeding pipe and a solid fungicide feeding pipe. The broccoli continuous cropping soil quality improvement device is scientific and reasonable in structural design, comprehensive in function, high in automation degree, capable of efficiently solving the broccoli continuous cropping soil quality improvement problem, small in human input, good in use effect and capable of being used and popularized, and the functions of detection, ploughing, fungicide sowing and soil covering are integrated.

Description

Technical Field

[0001] The invention belongs to the technical field of soil treatment, and particularly relates to a broccoli continuous cropping soil microbial conditioning device and a method thereof. Background Art

[0002] Continuous cropping problems are usually caused by factors such as soil microbial imbalance, aggravation of soil-borne diseases, accumulation of autotoxic substances and nutrient imbalance.

[0003] Continuous cropping of broccoli can lead to the following problems: 1. Acidification and salinization: Long-term continuous cropping leads to excessive accumulation of chemical fertilizers (such as urea and compound fertilizers) in the soil, a decrease in soil pH, and the accumulation of salt on the bed surface, resulting in salinization, which inhibits root development and causes problems such as seedling death and root rot.

[0004] 2. Compaction and loss of organic matter: Continuous cropping aggravates the destruction of soil structure, accelerates the decomposition of organic matter but insufficiently replenishes it, causes the collapse of soil aggregate structure, reduces permeability, and affects the absorption of water and nutrients.

[0005] 3. Frequent occurrence of soil-borne diseases: black rot, clubroot, soft rot, etc.

[0006] 4. Pests continue to break out.

[0007] 5. Imbalance of microbial communities: Continuous cropping inhibits the reproduction of beneficial bacteria (such as Bacillus and lactic acid bacteria), and harmful bacteria (such as Fusarium and Pythium) dominate, weakening the plant's resistance to stress.

[0008] 6. Nutritional imbalance: Soil nutrients (such as boron and molybdenum) are consumed unevenly due to continuous cropping, resulting in poor development of flower heads.

[0009] 7. Reduce production.

[0010] Based on the above problems, it is necessary to design a device for regulating soil microorganisms in continuous broccoli cropping. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to provide a broccoli continuous cropping soil microbial regulation device in response to the above-mentioned deficiencies in the prior art. The device has a scientific and reasonable structural design, integrates the functions of detection, plowing, spreading microbial agents and soil covering, has comprehensive functions, a high degree of automation, can efficiently solve the soil quality improvement problem of broccoli continuous cropping soil, requires little manpower investment, has good use effect, and can be promoted for use.

[0012] To solve the above technical problems, the present invention adopts a technical solution: a broccoli continuous cropping soil microbial conditioning device, characterized by comprising a chassis, a moving mechanism, a soil operating mechanism, and a microbial agent application mechanism. The chassis is provided with a moving mechanism at the bottom thereof to control the movement of the chassis. The chassis is provided with a soil operating mechanism at a position directly opposite the soil for breaking, testing, and covering the soil. The microbial agent application mechanism is provided within the chassis for storing and releasing a variety of microbial drugs. The soil operating mechanism includes a conversion disc, a soil breaking plow, a soil detector and a soil covering device. The bottom of the conversion disc is connected to the soil breaking plow, the soil detector and the soil covering device through a circular array of electric telescopic rods. The top surface of the conversion disc is eccentrically connected to a vertical shaft, and the vertical shaft is vertically fixedly connected to the bottom surface of the chassis. A conversion motor for driving the conversion disc to rotate is provided on the bottom surface of the chassis. The central axis of the conversion disc forms an angle of 60° with the bottom surface of the chassis. The microbial agent application mechanism includes a medicine storage tank, a mixing chamber, a liquid microbial agent delivery pipe and a solid microbial agent delivery pipe. Multiple pairs of medicine storage tanks are arranged on the upper layer of the chassis, and a mixing chamber connected to the medicine storage tanks is arranged on the lower layer of the chassis. The bottom of the mixing chamber is connected to the liquid microbial agent delivery pipe or the solid microbial agent delivery pipe.

[0013] Preferably, a driven bevel gear ring is provided on the upper end surface of the conversion disk, the output shaft of the conversion motor is connected to the driving bevel gear, the driving bevel gear is meshed with the driven bevel gear ring, and the central axes of the driving bevel gear and the driven bevel gear ring form an angle of 60°.

[0014] Preferably, the soil-breaking plow is a cross-shaped plow blade, the bottom center position of the soil detector is connected to an integrated detection head, two arc-shaped covering plates are relatively installed on the soil covering device, the arc-shaped covering plates are slidably installed on the soil covering device, and a covering motor for driving the arc-shaped covering plates to move is installed on the soil covering device.

[0015] Preferably, a cleaning liquid storage chamber is provided in the soil detector, and a plurality of cleaning nozzles are arranged in a circular array with the integrated detection head as the center at the bottom of the soil detector. The cleaning nozzles are inclined toward the integrated detection head, and the cleaning nozzles are connected to the cleaning liquid storage chamber. The cleaning nozzles have a built-in micro pump, and a liquid replenishing port is provided on the cleaning liquid storage chamber.

[0016] Preferably, end limit plates are provided at both ends of the soil covering device, and two slide grooves are symmetrically opened on the soil covering device. A screw is rotatably installed in the slide groove, and a slider is threadedly connected to the screw. The slider slides in cooperation with the slide groove. A soil covering motor fixedly connected to the rotation driving screw is fixedly installed on the end limit plate, and the slider is fixedly connected to the arc-shaped soil covering plate.

[0017] Preferably, the moving mechanism includes a hydraulic rod, travel wheels, and a wheel motor. The top of the hydraulic rod is fixedly connected to the bottom of the chassis, and the bottom of the hydraulic rod is fixedly connected to a mounting base. The travel wheels are rotatably mounted on the mounting base via a wheel axle. The axle of each travel wheel is coaxially fixedly connected to the output shaft of the wheel motor. A buffer spring is sleeved on the outer side of the hydraulic rod, and the ends of the buffer spring are connected to the mounting base and the chassis.

[0018] Preferably, there are ten medicine storage tanks divided into five groups, and there are five mixing chambers. Each mixing chamber corresponds to a group of medicine storage tanks. A first solenoid valve is provided at the outlet of the medicine storage tank, and an agitator is provided in the mixing chamber. The agitator is driven by a stirring motor. The bottom center position of the mixing chamber is connected to a liquid bacterial agent delivery pipe or a solid bacterial agent delivery pipe through a second solenoid valve. A conical head is provided at the outlet of the liquid bacterial agent delivery pipe, a replenishing port is provided at the top of the medicine storage tank, and a pressure sensor is provided at the bottom of the medicine storage tank.

[0019] Preferably, lactic acid bacteria and humic acid bacteria agents are stored in the first group of medicine storage tanks respectively, and the first mixing chamber connected to the first group of medicine storage tanks is used to mix liquid bacteria liquid for acidic soil; the second group of medicine storage tanks are used to store Trichoderma harzianum and Paecilomyces lilacinus respectively, and the second mixing chamber connected to the second group of medicine storage tanks is used to mix liquid bacteria liquid for areas with high incidence of pathogens; the third group of medicine storage tanks are used to store Bacillus subtilis and AMF bacteria agents respectively, and the third mixing chamber connected to the third group of medicine storage tanks is used to mix liquid bacteria liquid for areas with continuous cropping obstacles; the fourth group of medicine storage tanks are used to store Bacillus megaterium and Bacillus mucilaginosus respectively, and the fourth mixing chamber connected to the fourth group of medicine storage tanks is used to mix solid bacteria powder for areas with insufficient organic matter; the fifth group of medicine storage tanks are used to store chelating bacteria and heavy metal-resistant bacteria respectively, and the fifth mixing chamber connected to the fifth group of medicine storage tanks is used to mix solid bacteria powder for heavy metal contaminated areas.

[0020] Preferably, a photovoltaic panel is arranged on the top of the side wall of the chassis, a battery is arranged in the chassis, the battery is connected to the photovoltaic panel, a PLC controller is arranged in the chassis, cameras are arranged at the bottom and front of the chassis, the signal input end of the PLC controller is connected to the camera, the integrated detection head and the pressure sensor, the control signal output end of the PLC controller is connected to the first solenoid valve, the second solenoid valve, the stirring motor, the soil covering motor, the wheel motor, the conversion motor, the electric telescopic rod and the cleaning nozzle, and the power port of the PLC controller is connected to the battery.

[0021] A method for regulating soil microorganisms in broccoli continuous cropping using a broccoli continuous cropping soil microorganism regulating device comprises the following steps: S1, the PLC controller sets the travel route according to the image information of the camera, controls the rotation of the wheel motor to drive the chassis to move, and performs differential steering by controlling the speed of different wheel motors; S2. The PLC controller controls the conversion motor to rotate so that the integrated detection head is in a working position perpendicular to the soil surface, and controls the electric telescopic rod connected to the soil detector to extend so that the integrated detection head is inserted into the soil, and the soil in the area is tested. The soil type in the area is determined based on the test results, and the type of microbial agent to be applied is determined; S3, the PLC controller controls the conversion motor to rotate so that the soil-breaking plow is in a working position perpendicular to the soil surface, controls the electric telescopic rod connected to the soil-breaking plow to extend so that the soil-breaking plow penetrates the soil layer, and the chassis continues to move forward, and the soil-breaking plow completes the soil turning operation; S4. Controlling the opening of the corresponding first solenoid valve according to the type of microbial agent, controlling the amount of microbial agent added by controlling the opening time of the first solenoid valve, turning on the stirring motor to stir and mix the microbial agent added to the corresponding mixing chamber, and opening the corresponding second solenoid valve to release the mixed microbial agent into the soil trough after tilling the soil; S5. The PLC controller controls the conversion motor to rotate so that the soil covering device is in a working position vertically facing the soil ground, controls the electric telescopic rod connected to the soil covering device to extend so that the soil covering device is close to the soil, turns on the soil covering motor to make the arc-shaped soil covering plates move in opposite directions to push the turned soil into the soil trough, and the chassis moves intermittently to complete the soil covering.

[0022] Compared with the prior art, the present invention has the following advantages: 1. This invention features an integrated design that automates the entire process of tilling, microbial inoculant application, and backfilling. By integrating the application requirements of microbial inoculants with mechanical engineering, it addresses issues such as acidification, high incidence of pathogens, continuous cropping problems, insufficient organic matter, and heavy metal pollution, providing an efficient and sustainable solution to continuous cropping problems.

[0023] 2. Aiming at the problem that excessive tillage at a fixed speed by traditional rotary tillers leads to the breakage of soil aggregates and deterioration of aeration, the present invention designs a cross coulter with stable grooving. Combined with the arc-shaped covering plate, it achieves a good soil covering and backfilling effect, avoiding the problem of excessive tillage.

[0024] 3. The present invention processes images and soil detection information based on a PLC controller, controls the coordinated work of various actuators, and orderly implements the operational process of detection - turning over the soil - microbial agent application and backfilling and covering the soil, with a high degree of automation.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the main structure of the present invention as a whole.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the soil operating mechanism in the present invention.

[0029] Figure 4 It is a schematic cross-sectional structural diagram of the soil operating mechanism of the present invention.

[0030] Figure 5 It is a schematic diagram of the structure of the soil covering device in the present invention when viewed from above.

[0031] Figure 6 It is a schematic diagram of the main cross-sectional structure of the chassis, soil operating mechanism and microbial agent applying mechanism of the present invention.

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of the chassis in the present invention from above.

[0033] Description of reference numerals: DETAILED DESCRIPTION

[0034] Example 1 This embodiment provides a broccoli continuous cropping soil microbial conditioning device, such as Figures 1 to 7 As shown, the present invention includes a chassis 1, a moving mechanism, a soil operating mechanism, and a microbial agent application mechanism. The moving mechanism is provided at the bottom of the chassis 1 to control the movement of the chassis 1. The soil operating mechanism is provided at the bottom of the chassis 1 facing the soil for breaking the soil, testing, and covering the soil. The microbial agent application mechanism is provided inside the chassis 1 for storing and releasing a variety of microbial drugs. The soil operating mechanism includes a conversion disc 2, a soil breaking plow 3, a soil detector 4 and a soil covering device 5. The bottom of the conversion disc 2 is connected to the soil breaking plow 3, the soil detector 4 and the soil covering device 5 through an annular array of electric telescopic rods 14. The top surface of the conversion disc 2 is eccentrically connected to a vertical shaft 6. The vertical shaft 6 is vertically fixedly connected to the bottom surface of the chassis 1. A conversion motor 7 for driving the conversion disc 2 to rotate is provided on the bottom surface of the chassis 1. The central axis of the conversion disc 2 forms an angle of 60° with the bottom surface of the chassis 1. The microbial agent application mechanism includes a medicine storage tank 8, a mixing chamber 9, a liquid microbial agent delivery pipe 10 and a solid microbial agent delivery pipe 11. Multiple pairs of medicine storage tanks 8 are arranged on the upper layer of the chassis 1, and a mixing chamber 9 connected to the medicine storage tank 8 is arranged on the lower layer of the chassis 1. The bottom of the mixing chamber 9 is connected to the liquid microbial agent delivery pipe 10 or the solid microbial agent delivery pipe 11.

[0035] In this embodiment, a driven bevel gear ring 12 is provided on the upper end surface of the conversion disk 2, and the output shaft of the conversion motor 7 is connected to the driving bevel gear 13 in a transmission manner. The driving bevel gear 13 is meshed with the driven bevel gear ring 12, and the central axis of the driving bevel gear 13 and the driven bevel gear ring 12 form an angle of 60°.

[0036] In this embodiment, the soil-breaking plow 3 is a cross-shaped plow blade, the bottom center position of the soil detector 4 is connected to an integrated detection head 15, two arc-shaped covering plates 16 are relatively installed on the soil covering device 5, and the arc-shaped covering plates 16 are slidably installed on the soil covering device 5. The soil covering device 5 is equipped with a covering motor 17 that drives the arc-shaped covering plates 16 to move.

[0037] In this embodiment, a cleaning liquid storage chamber is opened in the soil detector 4, and a plurality of cleaning nozzles 18 are arranged in a circular array with the integrated detection head 15 as the center at the bottom of the soil detector 4. The cleaning nozzles 18 are inclined toward the integrated detection head 15, and the cleaning nozzles 18 are connected to the cleaning liquid storage chamber. The cleaning nozzles 18 have a built-in micro pump, and a liquid replenishing port is opened on the cleaning liquid storage chamber.

[0038] In this embodiment, end limit plates 19 are provided at both ends of the soil covering device 5, and two slide grooves 20 are symmetrically provided on the soil covering device 5, and the axes of the two slide grooves 20 coincide with each other. A screw is rotatably installed in the slide groove 20, and a slider is threadedly connected to the screw. The slider slides with the slide groove 20. A soil covering motor 17 fixedly connected to the rotation driving screw is fixedly installed on the end limit plate 19, and the slider is fixedly connected to the arc-shaped soil covering plate 16.

[0039] In this embodiment, the mobile mechanism includes a hydraulic rod 21, running wheels 22, and a wheel motor 23. The top of the hydraulic rod 21 is fixedly connected to the bottom surface of the chassis 1, and the bottom of the hydraulic rod 21 is fixedly connected to a mounting base 24. The running wheels 22 are rotatably mounted on the mounting base 24 via a wheel axle. The axle of each running wheel 22 is coaxially fixedly connected to the output shaft of the wheel motor 23. A buffer spring 27 is sleeved on the outer side of the hydraulic rod 21, and the ends of the buffer spring 27 are connected to the mounting base 24 and the chassis 1.

[0040] In this embodiment, the ten medicine storage tanks 8 are divided into five groups, namely medicine storage tanks 8 No. 1 to 10. The five mixing chambers 9 are connected to a group of medicine storage tanks 8. The five mixing chambers 9 are mixing chambers 9 No. 1 to 5. The No. 1 mixing chamber 9 is connected to medicine storage tanks 8 No. 1 and No. 2, the No. 2 mixing chamber 9 is connected to medicine storage tanks 8 No. 3 and No. 6, the No. 4 mixing chamber 9 is connected to medicine storage tanks 8 No. 7 and No. 8, and the No. 5 mixing chamber 9 is connected to medicine storage tanks 8 No. 9 and No. 10. The outlet of each medicine storage tank 8 is provided with a first solenoid valve. The mixing chamber 9 is provided with an agitator 25, which is driven by a stirring motor. The center position of the bottom of the mixing chamber 9 is connected to the liquid inoculum dispensing pipe 10 or the solid inoculum dispensing pipe 11 via a second solenoid valve. The outlet of the liquid inoculum dispensing pipe 10 is provided with a conical head. The top of the medicine storage tank 8 is provided with a refill port, and the bottom of the medicine storage tank 8 is provided with a pressure sensor.

[0041] In this embodiment, lactic acid bacteria and humic acid bacteria agents are stored in the No. 1 and No. 2 medicine storage tanks 8 respectively, the No. 1 mixing chamber 9 mixes liquid bacteria liquid for acidic soil, the No. 3 and No. 4 medicine storage tanks 8 respectively store Trichoderma harzianum and Paecilomyces lilacinus, the No. 2 mixing chamber 9 mixes liquid bacteria liquid for areas with high incidence of pathogens, the No. 5 and No. 6 medicine storage tanks 8 respectively store Bacillus subtilis and AMF bacteria agents, the No. 3 mixing chamber 9 mixes liquid bacteria liquid for areas with continuous cropping obstacles, the No. 7 and No. 8 medicine storage tanks 8 respectively store Bacillus megaterium and Bacillus mucilaginosus, the No. 4 mixing chamber 9 mixes solid bacteria powder for areas with insufficient organic matter, the No. 90 medicine storage tanks 8 respectively store chelating bacteria and heavy metal-resistant bacteria, and the No. 5 mixing chamber 9 mixes solid bacteria powder for heavy metal contaminated areas.

[0042] In this embodiment, a photovoltaic panel 26 is provided on the top of the side wall of the chassis 1, a battery is provided in the chassis 1, the battery is connected to the photovoltaic panel 26, a PLC controller is provided in the chassis 1, cameras are provided at the bottom and front of the chassis 1, the signal input end of the PLC controller is connected to the camera, the integrated detection head 15 and the pressure sensor, the control signal output end of the PLC controller is connected to the first solenoid valve, the second solenoid valve, the stirring motor, the soil covering motor 17, the wheel motor 23, the conversion motor 7, the electric telescopic rod 14 and the cleaning nozzle 18, and the power port of the PLC controller is connected to the battery.

[0043] Example 2 This embodiment provides a method for regulating soil microorganisms during continuous broccoli cropping, comprising the following steps: S1, the PLC controller sets the travel route according to the image information of the camera, controls the wheel motor 23 to rotate and drive the chassis 1 to move, and performs differential steering by controlling the speed of different wheel motors 23; S2: The PLC controller controls the conversion motor 7 to rotate so that the integrated detection head 15 is in a working position perpendicular to the soil surface, and controls the electric telescopic rod 14 connected to the soil detector 4 to extend so that the integrated detection head 15 is inserted into the soil, and the soil in the area is tested. The soil type in the area is determined based on the test results, and the type of microbial agent to be applied is determined; S3, the PLC controller controls the conversion motor 7 to rotate so that the soil-breaking plow 3 is in a working position perpendicular to the soil surface, controls the electric telescopic rod 14 connected to the soil-breaking plow 3 to extend so that the soil-breaking plow 3 penetrates the soil layer, and the chassis 1 continues to move forward, and the soil-breaking plow 3 completes the soil turning operation; S4. Control the opening of the corresponding first solenoid valve according to the type of microbial agent, control the amount of microbial agent added by controlling the opening time of the first solenoid valve, start the stirring motor to stir and mix the microbial agent added to the corresponding mixing chamber 9, and open the corresponding second solenoid valve to release the mixed microbial agent into the soil trough after turning the soil; S5. The PLC controller controls the conversion motor 7 to rotate so that the soil covering device 5 is in a working position vertically facing the soil surface, controls the electric telescopic rod 14 connected to the soil covering device 5 to extend so that the soil covering device 5 is close to the soil, turns on the soil covering motor 17 to make the arc-shaped soil covering plate 16 move in opposite directions to push the turned soil into the soil trough, and the chassis 1 moves intermittently to complete the soil covering.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent variation made to the above embodiment based on the essence of the invention technology shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A soil microbial conditioning device for continuous broccoli cropping, characterized in that: The invention comprises a chassis (1), a moving mechanism, a soil operating mechanism and a microbial agent applying mechanism, wherein the moving mechanism is provided at the bottom of the chassis (1) and the movement of the chassis (1) is controlled by the moving mechanism, the soil operating mechanism is provided at a position of the bottom of the chassis (1) facing the soil for breaking the soil, detecting and covering the soil, and the microbial agent applying mechanism is provided in the chassis (1) for storing and releasing a variety of microbial drugs; The soil operating mechanism comprises a conversion disc (2), a soil breaking plow (3), a soil detector (4) and a soil covering device (5); the bottom of the conversion disc (2) is connected to the soil breaking plow (3), the soil detector (4) and the soil covering device (5) via a circular array of electric telescopic rods (14); the top surface of the conversion disc (2) is eccentrically connected to a vertical shaft (6); the vertical shaft (6) is vertically fixedly connected to the bottom surface of the chassis (1); a conversion motor (7) for driving the conversion disc (2) to rotate is provided on the bottom surface of the chassis (1); the central axis of the conversion disc (2) forms an angle of 60° with the bottom surface of the chassis (1); The microbial agent application mechanism comprises a medicine storage tank (8), a mixing chamber (9), a liquid microbial agent delivery pipe (10) and a solid microbial agent delivery pipe (11); a plurality of pairs of medicine storage tanks (8) are arranged on the upper layer of the chassis (1); a mixing chamber (9) connected to the medicine storage tanks (8) is arranged on the lower layer of the chassis (1); and the bottom of the mixing chamber (9) is connected to the liquid microbial agent delivery pipe (10) or the solid microbial agent delivery pipe (11).

2. The broccoli continuous cropping soil microbial conditioning device according to claim 1, characterized in that: A driven bevel gear ring (12) is provided on the upper end surface of the conversion disk (2), the output shaft of the conversion motor (7) is connected to the driving bevel gear (13), the driving bevel gear (13) is meshed with the driven bevel gear ring (12), and the central axes of the driving bevel gear (13) and the driven bevel gear ring (12) form an angle of 60 degrees.

3. The broccoli continuous cropping soil microbial conditioning device according to claim 1, characterized in that: The soil-breaking plow (3) is a cross-shaped plow blade, the bottom center of the soil detector (4) is connected to an integrated detection head (15), two arc-shaped covering plates (16) are relatively installed on the soil covering device (5), the arc-shaped covering plates (16) are slidably installed on the soil covering device (5), and a covering motor (17) for driving the arc-shaped covering plates (16) to move is installed on the soil covering device (5).

4. The broccoli continuous cropping soil microbial conditioning device according to claim 3, characterized in that: A cleaning liquid storage chamber is provided in the soil detector (4), and a plurality of cleaning nozzles (18) are provided in a circular array at the bottom of the soil detector (4) with the integrated detection head (15) as the center. The cleaning nozzles (18) are inclined toward the integrated detection head (15), and the cleaning nozzles (18) are connected to the cleaning liquid storage chamber. A micro pump is built into the cleaning nozzles (18), and a liquid replenishing port is provided on the cleaning liquid storage chamber.

5. The broccoli continuous cropping soil microbial conditioning device according to claim 3, characterized in that: End limit plates (19) are provided at both ends of the soil covering device (5), and two slide grooves (20) are symmetrically provided on the soil covering device (5). A screw is rotatably installed in the slide groove (20), and a slider is threadedly connected to the screw. The slider is slidably matched with the slide groove (20). A soil covering motor (17) fixedly connected to the screw to drive the screw to rotate is fixedly installed on the end limit plate (19), and the slider is fixedly connected to the arc-shaped soil covering plate (16).

6. The broccoli continuous cropping soil microbial conditioning device according to claim 1, characterized in that: The mobile mechanism comprises a hydraulic rod (21), a running wheel (22) and a wheel motor (23); the top of the hydraulic rod (21) is fixedly connected to the bottom surface of the chassis (1); the bottom of the hydraulic rod (21) is fixedly connected to the mounting seat (24); the running wheel (22) is rotatably mounted on the mounting seat (24) via a wheel axle; the wheel axle of each running wheel (22) is coaxially fixedly connected to the output shaft of the wheel motor (23); a buffer spring (27) is sleeved on the outer side of the hydraulic rod (21); and the two ends of the buffer spring (27) are connected to the mounting seat (24) and the chassis (1).

7. The broccoli continuous cropping soil microbial conditioning device according to claim 1, characterized in that: There are ten medicine storage tanks (8) divided into five groups, and there are five mixing chambers (9). Each mixing chamber (9) is connected to a group of medicine storage tanks (8). A first solenoid valve is provided at the outlet of each medicine storage tank (8). A stirrer (25) is provided in the mixing chamber (9). The stirrer (25) is driven by a stirring motor. The center position of the bottom of the mixing chamber (9) is connected to a liquid bacterial agent delivery pipe (10) or a solid bacterial agent delivery pipe (11) through a second solenoid valve. A conical head is provided at the outlet of the liquid bacterial agent delivery pipe (10). A replenishment port is provided at the top of the medicine storage tank (8). A pressure sensor is provided at the bottom of the medicine storage tank (8).

8. The broccoli continuous cropping soil microbial conditioning device according to claim 7, characterized in that: The first group of medicine storage tanks (8) store lactic acid bacteria and humic acid bacteria agents respectively, and are connected to the first mixing chamber (9) of the first group of medicine storage tanks (8) to mix liquid bacteria liquid for acidic soil. The second group of medicine storage tanks (8) store Trichoderma harzianum and Paecilomyces lilacinus respectively, and are connected to the second mixing chamber (9) of the second group of medicine storage tanks (8) to mix liquid bacteria liquid for areas with high incidence of pathogens. The third group of medicine storage tanks (8) store Bacillus subtilis and AMF bacteria agents respectively, and are connected to the third mixing chamber (9) of the third group of medicine storage tanks (8) to mix liquid bacteria liquid for areas with continuous cropping obstacles. The fourth group of medicine storage tanks (8) store Bacillus megaterium and Bacillus mucilaginosus respectively, and are connected to the fourth mixing chamber (9) of the fourth group of medicine storage tanks (8) to mix solid bacteria powder for areas with insufficient organic matter. The fifth group of medicine storage tanks (8) store chelating bacteria and heavy metal-resistant bacteria respectively, and are connected to the fifth mixing chamber (9) of the fifth group of medicine storage tanks (8) to mix solid bacteria powder for heavy metal contaminated areas.

9. The broccoli continuous cropping soil microbial conditioning device according to claim 1, characterized in that: A photovoltaic panel (26) is provided on the top of the side wall of the chassis (1), a battery is provided in the chassis (1), and the battery is connected to the photovoltaic panel (26), a PLC controller is provided in the chassis (1), cameras are provided at the bottom and front of the chassis (1), a signal input end of the PLC controller is connected to the camera, the integrated detection head (15) and the pressure sensor, a control signal output end of the PLC controller is connected to the first solenoid valve, the second solenoid valve, the stirring motor, the soil covering motor (17), the wheel motor (23), the conversion motor (7), the electric telescopic rod (14) and the cleaning nozzle (18), and a power port of the PLC controller is connected to the battery.

10. A method for regulating soil microorganisms in broccoli continuous cropping using the broccoli continuous cropping soil microorganism regulating device according to claims 1 to 9, characterized in that: The following steps are involved: S1, a PLC controller sets a travel route according to the image information of the camera, controls the wheel motor (23) to rotate and drive the chassis (1) to move, and performs differential steering by controlling the rotation speed of different wheel motors (23); S2, the PLC controller controls the conversion motor (7) to rotate so that the integrated detection head (15) is in a working position perpendicular to the soil surface, controls the electric telescopic rod (14) connected to the soil detector (4) to extend so that the integrated detection head (15) is inserted into the soil, and the soil is tested. The soil type is determined based on the test results to determine the type of microbial agent to be applied; S3, the PLC controller controls the conversion motor (7) to rotate so that the soil-breaking plow (3) is in a working position perpendicular to the soil surface, controls the electric telescopic rod (14) connected to the soil-breaking plow (3) to extend so that the soil-breaking plow (3) penetrates the soil layer, and the chassis (1) continues to move forward, and the soil-breaking plow (3) completes the soil turning operation; S4, controlling the opening of the corresponding first solenoid valve according to the type of microbial agent, controlling the amount of microbial agent added by controlling the opening time of the first solenoid valve, turning on the stirring motor to stir and mix the microbial agent added to the corresponding mixing chamber (9), and opening the corresponding second solenoid valve to add the mixed microbial agent into the soil trough after turning the soil; S5, the PLC controller controls the conversion motor (7) to rotate so that the soil covering device (5) is in a working position perpendicular to the soil surface, controls the electric telescopic rod (14) connected to the soil covering device (5) to extend so that the soil covering device (5) is close to the soil, turns on the soil covering motor (17) to make the arc-shaped soil covering plate (16) move in opposite directions to push the turned soil into the soil trough, and the chassis (1) moves intermittently to complete the soil covering.

Images