Handheld Precision Fertilizer Applicator for Tobacco Fields

Abstract

The present application discloses a hand-held precise fertilizer applicator for tobacco fields, which relates to the field of agricultural machinery and includes a frame, a driving device, a ditching device, a fertilizer application device, a detection device and a control device. A ranging module for detecting the ground clearance information is provided on the detection device. The control device determines whether it reaches or leaves the ridged tobacco field by receiving the detected ground clearance information. When the detected ground clearance information is less than the preset height distance, the ditching device is triggered to ditch at the preset height and the fertilizer application device is triggered to apply fertilizer. The present application improves the degree of automation, can apply an appropriate amount of fertilizer at an appropriate position and depth on the top of the tobacco field ridge at one time to ensure the needs of the entire growth process of the crop, can completely eliminate the manual fertilization link, and the overall process is intelligently operated, reducing the fertilization error and further improving the fertilization accuracy.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery, and particularly to a walking type precision fertilizer applicator for tobacco fields. Background Art

[0002] At present, after the planting operations of cash crops such as flue-cured tobacco, fruits and vegetables are completed, manual fertilization is still required multiple times, resulting in problems such as low production efficiency and high labor costs. Especially for flue-cured tobacco planting, the tillage and ridging operations in tobacco fields are carried out in the 11th and 12th lunar months of each year, while the fertilization for transplanting flue-cured tobacco seedlings is in the middle of the 2nd lunar month. However, the existing fertilizer applicators cannot perform fertilization operations on ridged tobacco fields and only manual fertilization is possible.

[0003] However, manual fertilization has a high labor intensity, low work efficiency, and it is difficult to accurately control the amount of fertilizer during the manual fertilization process, which easily leads to problems of under-fertilization or over-fertilization, and cannot effectively make the fertilizer flow into the soil layer where the roots of tobacco plants grow densely for effective absorption and utilization by tobacco plants. Therefore, it is necessary to develop a walking type precision fertilizer applicator for tobacco fields that is suitable for tobacco field ridges, is convenient and efficient to use, improves the fertilization accuracy rate, and reduces fertilization errors. Summary of the Invention

[0004] This application aims to solve the technical problem that the existing technology cannot perform precise fertilization on ridged tobacco fields, and provides a walking type precision fertilizer applicator for tobacco fields, which can apply an appropriate amount of fertilizer at an appropriate position and depth on the top of the tobacco field ridge at one time to ensure the needs of the entire growth process of the crop, can completely eliminate the manual fertilization link, and the overall process is intelligently operated, further improving the fertilization accuracy.

[0005] This application adopts the following technical solutions:

[0006] The walking type precision fertilizer applicator for tobacco fields includes:

[0007] A frame;

[0008] A driving device, which is arranged on the frame and used to drive the frame to move forward;

[0009] A ditching device, which is arranged at the rear of the frame and used for ditching and covering soil on the ridged tobacco field;

[0010] A fertilizing device, which is arranged at the rear of the frame and located above the ditching device, and is used for fertilizing at the ditching position after the ditching device has ditched;

[0011] A detection device, including a ranging module arranged on the front side of the ditching device for detecting the ground distance information;

[0012] A control device, whose input end is connected to the detection device, and output ends are respectively connected to the ditching device and the fertilizing device. The control device receives the detected ground clearance information and is configured to trigger the ditching device to perform ditching at a preset ditching height and trigger the fertilizing device to perform fertilization when the ground clearance information is less than a preset height distance.

[0013] For the walk-behind precision fertilizing machine for tobacco fields as described above, the ditching device includes a connecting rod connected to the frame, a ditching tool articulated to the lower end of the connecting rod for ditching, a driving member disposed between the connecting rod and the ditching tool and used to drive the ditching tool to rotate, and a soil covering device disposed at the rear of the connecting rod for covering soil.

[0014] For the walk-behind precision fertilizing machine for tobacco fields as described above, the ditching tool includes:

[0015] A hinge rod, whose rear part is articulated to the connecting rod and middle part is articulated to the output end of the driving member;

[0016] A plowshare, which is disposed at the front end of the hinge rod;

[0017] A left ditching plate, which is articulated to the left part of the rear end of the plowshare;

[0018] A right ditching plate, which is articulated to the right part of the rear end of the plowshare;

[0019] An angle adjustment assembly, including an adjustment seat sleeved on the hinge rod, a left connecting member with two ends respectively articulated to the adjustment seat and the left ditching plate, a right connecting member with two ends respectively articulated to the adjustment seat and the right ditching plate, and a fastening member disposed on the hinge rod for locking the adjustment seat.

[0020] For the walk-behind precision fertilizing machine for tobacco fields as described above, the soil covering device includes a soil covering plate articulated to the rear end of the connecting rod and an elastic reset member connected between the soil covering plate and the connecting rod for pulling the soil covering plate close to the connecting rod. The width of the bottom of the soil covering plate gradually decreases from the front side to the rear side.

[0021] For the walk-behind precision fertilizing machine for tobacco fields as described above, the fertilizing device includes a fertilizer box disposed in the middle of the frame, a fertilizing box communicated with the lower part of the fertilizer box and used for discharging fertilizer, a fertilizing motor used to control the discharging of fertilizer from the fertilizing box, and a fertilizing pipeline communicated with the fertilizing box and used for transporting fertilizer to the ditching position of the ditching device.

[0022] For the walk-behind precision fertilizing machine for tobacco fields as described above, the detection device further includes a rotation speed module disposed on the driving device for detecting the traveling speed information;

[0023] The control device receives the detected driving speed information and controls the operating frequency of the fertilizer application motor according to the driving speed information.

[0024] For the walking type precision fertilizer applicator for tobacco fields as described above, the detection device further includes a motor stall sensor provided on the fertilizer application motor for detecting whether the fertilizer application motor is stalled, and a fertilizer shortage sensor provided at the bottom of the fertilizer tank for detecting whether there is a shortage of fertilizer in the fertilizer tank.

[0025] An alarm module is further provided on the control device, and the alarm module is used to issue an alarm when the fertilizer application motor is stalled and / or there is a shortage of fertilizer in the fertilizer tank.

[0026] For the walking type precision fertilizer applicator for tobacco fields as described above, the driving device includes a walking wheel rotatably provided in the middle of the frame, a driving mechanism provided at the front of the frame for driving the walking wheel to rotate, and a driven wheel provided at the rear of the frame. The driving mechanism is electrically connected to the control device.

[0027] For the walking type precision fertilizer applicator for tobacco fields as described above, a setting module for presetting the height distance and the ditching height is provided on the control device.

[0028] Compared with the prior art, the beneficial effects of the present application are as follows:

[0029] 1. The present application provides a walking type precision fertilizer applicator for tobacco fields, including a frame, a driving device, a ditching device, a fertilizer application device, a detection device and a control device. The driving device is provided for walking, the ditching device is used for ditching and covering soil on the ridged tobacco field, the fertilizer application device is used for applying fertilizer after ditching. A ranging module for detecting the ground clearance distance information is provided on the detection device. The control device determines whether the ranging module is above the ridged tobacco field by receiving the detected ground clearance distance information, so as to determine whether the fertilizer applicator arrives at or leaves the ridged tobacco field. When the ground clearance distance information detected by the ranging module is less than the preset height distance, the ditching device is triggered to ditch at the preset height and the fertilizer application device is triggered to apply fertilizer, which improves the degree of automation. The present application can apply an appropriate amount of fertilizer at an appropriate position and depth on the top of the tobacco field ridge at one time to ensure the needs of the entire growth process of the crop, can completely eliminate the manual fertilization link, the overall process is intelligent operation, reduces fertilization error, and further improves the fertilization accuracy.

[0030] 2. The ditching device of the present application includes a connecting rod, a ditching tool, a driving member and a soil covering device. The driving member drives the ditching tool to rotate to insert the ditching tool into the tobacco field or retract it. The soil covering device is used to bury the dug soil back into the ditch after ditching, which increases automation, reduces manual operation, and controls the ditching depth of the ditching tool through the control device, improves the fertilization accuracy rate, reduces fertilization error. At the same time, the ditching tool of the present application can adjust the ditching width, increasing the practicability.

[0031] 3. The detection device further includes a rotation speed module disposed on the driving device for detecting driving speed information. The control device receives the detected driving speed information and controls the fertilizing speed of the fertilizing device according to the driving speed information. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments.

[0033] Figure 1 It is a schematic structural diagram of the hand-held tobacco field precision fertilizing machine when it is folded up in the present application.

[0034] Figure 2 It is a three-dimensional schematic diagram of the trench digging device 3 of the hand-held tobacco field precision fertilizing machine in the present application.

[0035] Figure 3 It is a three-dimensional schematic diagram of the trench digging device 3 of the hand-held tobacco field precision fertilizing machine from another angle in the present application.

[0036] Figure 4 It is a schematic diagram of the frame of the hand-held tobacco field precision fertilizing machine in the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Please refer to Figures 1 to 4 , a hand-held tobacco field precision fertilizing machine, characterized in that it includes a frame 1, a driving device 2, a trench digging device 3, a fertilizing device 4, a detection device 5 and a control device 6. The driving device 2 is disposed on the frame 1 for driving the frame 1 to travel. The trench digging device 3 is disposed at the rear of the frame 1 for digging trenches and covering soil on the ridged tobacco field. The fertilizing device 4 is disposed at the rear of the frame 1 and is located above the trench digging device 3 for fertilizing at the trench digging position after the trench digging device 3 digs a trench. The detection device 5 includes a ranging module 51 disposed on the front side of the trench digging device 3 for detecting the ground clearance information. The input end of the control device 6 is connected to the detection device 5, and the output end is respectively connected to the trench digging device 3 and the fertilizing device 4. The control device 6 receives the detected ground clearance information and is used to trigger the trench digging device 3 to dig a trench at a preset trench digging height and trigger the fertilizing device 4 to fertilize when the ground clearance information is less than a preset height distance.

[0038] The present application provides a hand-held precise fertilizing machine for tobacco fields, which includes a frame 1, a driving device 2, a ditching device 3, a fertilizing device 4, a detection device 5 and a control device 6. The driving device 2 is provided for walking, the ditching device 3 is used for ditching and covering soil on the ridged tobacco fields, the fertilizing device 4 is used for fertilizing after ditching. The detection device 5 is provided with a ranging module 51 for detecting the ground distance information. The control device 6 determines whether the ranging module 51 is above the ridged tobacco field by receiving the detected ground distance information, so as to determine whether the fertilizing machine arrives at or leaves the ridged tobacco field. When the ground distance information detected by the ranging module 51 is less than the preset height distance, the ditching device 3 is triggered to ditch at the preset height and the fertilizing device 4 is triggered to fertilize. When the ground distance information detected by the ranging module 51 is greater than the preset height distance, the ditching device 3 is triggered to stop ditching and the fertilizing device 4 is triggered to stop fertilizing. The present application improves the degree of automation, can apply an appropriate amount of fertilizer at an appropriate position and depth at the top of the tobacco ridge at one time to ensure the needs of the entire growth process of the crop, can completely eliminate the manual fertilization link, the overall process is intelligently operated, reduces fertilization errors, and further improves the fertilization accuracy.

[0039] Further, the ditching device 3 includes a connecting rod 31 connected to the frame 1, a ditching tool 32 hinged to the lower end of the connecting rod 31 for ditching, a driving member 33 disposed between the connecting rod 31 and the ditching tool 32 and used for driving the ditching tool 32 to rotate, and a soil covering device 34 disposed at the rear of the connecting rod 31 for covering soil. By driving the driving member 33 to drive the ditching tool 32 to rotate around the hinge at the lower end of the connecting rod 31, the ditching tool 32 is inserted into or withdrawn from the tobacco field. The soil covering device 34 is used for covering the dug soil back into the ditch after ditching. When the control device 6 determines through the ranging module 51 that the ranging module 51 in front of the ditching device 3 has reached the ridged tobacco field, the driving member 33 drives the ditching tool 32 to rotate to insert into the ridged tobacco field for ditching. When the control device 6 determines through the ranging module 51 that the ranging module 51 in front of the ditching device 3 has left the ridged tobacco field, the driving member 33 is triggered to drive the ditching tool 32 to rotate to leave the ridged tobacco field. Through this design, the automation is increased and the manual operation is reduced. At the same time, the ranging module 51 of the present application is disposed in front of the ditching tool 32. The purpose of this design is that when the ranging module 51 enters the ridged tobacco field, the ditching tool 32 inserts into the tobacco field after entering the ridged tobacco field. When the ranging module 51 leaves the ridged tobacco field, the ditching tool 32 has been withdrawn from the tobacco field before leaving the ridged tobacco field, and the ridge edge will not be damaged. Preferably, the driving member 33 is a hydraulic cylinder, and the control device 6 controls the ditching depth of the ditching tool by controlling the oil inlet amount of the hydraulic cylinder, which improves the fertilization accuracy rate and reduces the fertilization error.

[0040] Further, the furrow opener 32 includes a hinge rod 321, a plow head 322, a left furrow board 323, a right furrow board 324, and an angle adjustment assembly 325. The rear part of the hinge rod 321 is hinged to the connecting rod 31, and the middle part is hinged to the output end of the driving member 33. The plow head 322 is arranged at the front end of the hinge rod 321. The left furrow board 323 is hinged to the left part of the rear end of the plow head 322. The right furrow board 324 is hinged to the right part of the rear end of the plow head 322. The angle adjustment assembly 325 includes an adjustment seat 3251 sleeved on the hinge rod 321, a left connecting member 3252 with two ends respectively hinged to the adjustment seat 3251 and the left furrow board 323, a right connecting member 3253 with two ends respectively hinged to the adjustment seat 3251 and the right furrow board 324, and a fastener 3254 arranged on the hinge rod 321 for locking the adjustment seat 3251. In this application, the left furrow board 323 and the right furrow board 324 are respectively hinged to both sides of the rear part of the plow head 322. At the same time, the distance can be adjusted on the hinge rod 321 through the angle adjustment assembly 325, and then the unfolding angles of the left furrow board 323 and the right furrow board 324 can be adjusted. Through this design, the width of the furrow can be adjusted, the practicability can be increased, and the fertilization accuracy can be improved.

[0041] Further, the soil covering device 34 includes a soil covering board 341 hinged to the rear end of the connecting rod 31 and an elastic reset member 342 connected between the soil covering board 341 and the connecting rod 31 for pulling the soil covering board 341 close to the connecting rod 31. The bottom width of the soil covering board 341 gradually decreases from the front side to the rear side. The purpose of designing the gradually decreasing bottom width of the soil covering board 341 is to re-concentrate the soil on both sides of the fertilization furrow after furrowing and then bury it back into the furrow. The elastic reset member 342 can be used to pull the soil covering board 341 to improve the flexible contact with the ridge top.

[0042] Further, the fertilization device 4 includes a fertilizer box 41 arranged in the middle of the frame 1, a fertilization box 42 communicated with the lower part of the fertilizer box 41 and used for discharging fertilizer, a fertilization motor 43 for controlling the discharge of fertilizer from the fertilization box 42, and a fertilization pipeline 44 communicated with the fertilization box 42 and used for conveying fertilizer to the furrowing position of the furrowing device 3. The fertilization motor 43 is preferably a DC reduction motor, and the fertilization pipeline 44 is a connecting hose extending into the tobacco field. After the furrowing device 3 furrows, the fertilizer flows out under the control of the fertilization box 42 and is introduced into the furrow through the fertilization pipeline 44. Preferably, the fertilization box 42 is an adjustable electric fertilizer distributor of model HX-64 produced by Hengxin Plastic Products Factory. By adopting the fertilization box and the motor, the fertilization amount is changed by adjusting the rotation speed of the motor, and the rotation speed of the fertilization motor 43 is controlled by the control device 6, so that the fertilization motor 43 controls the fertilization amount of the fertilization box 42.

[0043] Further, the detection device 5 further includes a rotation speed module 52 disposed on the driving device 2 for detecting the traveling speed information. The control device 6 receives the detected traveling speed information and controls the operating frequency of the fertilizer application motor 43 according to the traveling speed information. Preferably, the rotation speed module 52 is a rotation speed sensor, and the rotation speed module 52 is arranged on the traveling wheel 21 for sensing the rotation speed of the traveling wheel 21; the control device 6 controls the fertilizer application speed of the fertilizer application device 4 by controlling the operating frequency of the fertilizer application motor 43.

[0044] Further, the detection device 5 further includes a motor stall sensor 53 disposed on the fertilizer application motor 43 for detecting whether the fertilizer application motor 43 is stalled and a fertilizer shortage sensor 54 disposed at the bottom of the fertilizer tank 41 for detecting whether there is a shortage of fertilizer in the fertilizer tank 41; an alarm module 63 is further provided on the control device 6, and the alarm module 63 is used to issue an alarm when the fertilizer application motor 43 is stalled and / or there is a shortage of fertilizer in the fertilizer tank 41. When the motor is stalled, the motor stall sensor 53 sends a stall signal to the control device 6, the alarm module 63 issues an alarm signal, and at the same time, the power supply of the fertilizer application motor 43 is cut off to protect the fertilizer application motor 43. When the remaining fertilizer in the fertilizer tank 41 is lower than the fertilizer shortage sensor 54, the motor stall sensor 53 sends a fertilizer shortage signal to the control device 6, and the alarm module 63 issues an alarm signal for reminder.

[0045] Further, the driving device 2 includes a traveling wheel 21 rotatably disposed in the middle of the frame 1, a driving mechanism 22 disposed at the front of the frame 1 for driving the traveling wheel 21 to rotate, and a driven wheel 23 disposed at the rear of the frame 1. The driving mechanism 22 is electrically connected to the control device 6. This application is a hand-held fertilizer applicator. The traveling wheel 21 is a single-wheel traveling, which can travel in the middle of the ridged tobacco field. The balance and stable height can be achieved through the driven wheel 23.

[0046] Further, a setting module 61 for presetting the height distance and the ditching height is provided on the control device 6. More preferably, the control device 6 further includes a processor 62. The processor 62 is configured to receive the ground clearance distance information and the traveling speed information, and compare whether the ground clearance distance information is less than the preset height distance. If it is less than the preset height distance, the processor 62 controls the ditching device 3 to perform ditching according to the preset ditching height and controls the fertilizing amount of the fertilizing device 4 according to the traveling speed information. The height distance is preset through the setting module 61. When the distance detected by the distance measuring module 51 is less than the preset height distance, it indicates that the distance measuring module 51 is above the tobacco field. At this time, the processor 62 sends working signals to the ditching device 3 and the fertilizing device 4, controls the ditching device 3 to insert into the tobacco field at the preset ditching height for ditching according to the preset ditching height, and at the same time, the fertilizing amount of the fertilizing device 4 can be controlled according to the traveling speed information to obtain the rotation speed of the driving device 2. When the driving device 2 travels fast, the rotation speed module 52 senses the rotation of the traveling wheel 21 and transmits the traveling speed information to the processor 62. The processor 62 controls the rotation speed of the fertilizing motor 43 on the fertilizing device 4 to be fast, and the fertilizing motor 43 controls the fertilizing amount of the fertilizing box 42 to be larger. When the driving device 2 travels slowly, the rotation speed module 52 senses the rotation of the traveling wheel 21 and transmits the traveling speed information to the processor 62. The processor 62 controls the rotation speed of the fertilizing motor 43 on the fertilizing device 4 to be slow, and the fertilizing motor 43 controls the fertilizing amount of the fertilizing box 42 to be smaller. Preferably, by setting the fertilizing amount speed ratio information, different fixed speed ratios can be set according to requirements. By measuring the traveling state and traveling speed of the fertilizer applicator, and then automatically controlling whether to fertilize and the size of the fertilizing amount according to the working state and traveling speed of the fertilizer applicator. Further, the model of the processor 62 is STM32F103. The processor 62 processes and judges the ranging information to judge whether the received ground clearance distance information is less than the preset height distance, so as to control the switching actions of the connected ditching device 3 and fertilizing device 4, and can complete the reception and processing of signals and the sending of control commands.

[0047] The present application provides a hand-held precise fertilizer applicator for tobacco fields, which includes a frame 1, a driving device 2, a ditching device 3, a fertilizer application device 4, a detection device 5 and a control device 6. The driving device 2 is provided for walking, the ditching device 3 is used for ditching and covering soil on the ridged tobacco fields, the fertilizer application device 4 is used for applying fertilizers after ditching. A ranging module 51 for detecting the ground clearance information is provided on the detection device 5. The control device 6 determines whether the ranging module 51 is above the ridged tobacco field by receiving the detected ground clearance information, so as to determine whether the fertilizer applicator arrives at or leaves the ridged tobacco field. When the ground clearance information detected by the ranging module 51 is less than the preset height distance, the ditching device 3 is triggered to ditch at the preset height and the fertilizer application device 4 is controlled to apply fertilizers. When the ground clearance information detected by the ranging module 51 is greater than the preset height distance, the ditching device 3 is triggered to stop ditching and the fertilizer application device 4 is controlled to stop applying fertilizers. The present application improves the degree of automation, can bury an appropriate amount of fertilizers at an appropriate position and depth at the top of the tobacco field ridge at one time to ensure the needs of the entire growth process of the crops, can completely eliminate the manual fertilization link, the overall process is intelligent operation, reduces fertilization errors, and further improves the fertilization accuracy.

Claims

1. Hand-held precise tobacco field fertilizer applicator, characterized in that, Comprising: A frame (1); A driving device (2) provided on the frame (1) for driving the frame (1) to move; A ditching device (3) provided at the rear of the frame (1) for ditching and covering soil on the ridged tobacco field; A fertilizing device (4) provided at the rear of the frame (1) and located above the ditching device (3) for fertilizing at the ditching position after the ditching device (3) ditches; A detection device (5) including a ranging module (51) provided on the front side of the ditching device (3) for detecting the ground clearance information; A control device (6) whose input end is connected to the detection device (5), and the output end is respectively connected to the ditching device (3) and the fertilizing device (4). The control device (6) receives the detected ground clearance information and is used to trigger the ditching device (3) to ditch at a preset ditching height and trigger the fertilizing device (4) to fertilize when the ground clearance information is less than a preset height distance; The ditching device (3) includes a connecting rod (31) connected to the frame (1), a ditching tool (32) hinged to the lower end of the connecting rod (31) for ditching, a driving member (33) provided between the connecting rod (31) and the ditching tool (32) for driving the ditching tool (32) to rotate, and a soil covering device (34) provided at the rear of the connecting rod (31) for covering soil; The ditching tool (32) includes: A hinged rod (321) whose rear part is hinged to the connecting rod (31) and the middle part is hinged to the output end of the driving member (33); A plowshare (322) provided at the front end of the hinged rod (321); A left ditching plate (323) hinged to the left part of the rear end of the plowshare (322); A right ditching plate (324) hinged to the right part of the rear end of the plowshare (322); An angle adjustment assembly (325) including an adjustment seat (3251) sleeved on the hinged rod (321), a left connecting member (3252) with two ends respectively hinged to the adjustment seat (3251) and the left ditching plate (323), a right connecting member (3253) with two ends respectively hinged to the adjustment seat (3251) and the right ditching plate (324), and a fastener (3254) provided on the hinged rod (321) for locking the adjustment seat (3251); The driving device (2) includes a traveling wheel (21) rotatably provided in the middle of the frame (1), a driving mechanism (22) provided at the front of the frame (1) for driving the traveling wheel (21) to rotate, and a driven wheel (23) provided at the rear of the frame (1). The driving mechanism (22) is electrically connected to the control device (6).

2. The hand-held precise tobacco field fertilizer applicator according to claim 1, characterized in that: The soil covering device (34) includes a soil covering plate (341) hinged to the rear end of the connecting rod (31) and an elastic reset member (342) connected between the soil covering plate (341) and the connecting rod (31) for pulling the soil covering plate (341) close to the connecting rod (31). The bottom width of the soil covering plate (341) gradually decreases from the front side to the rear side.

3. The walking type precise tobacco field fertilizer applicator according to claim 1, characterized in that: The fertilizer application device (4) includes a fertilizer tank (41) disposed in the middle of the frame (1), a fertilizer application box (42) communicated with the lower part of the fertilizer tank (41) and used for discharging fertilizer, a fertilizer application motor (43) for controlling the fertilizer discharge of the fertilizer application box (42), and a fertilizer application pipeline (44) communicated with the fertilizer application box (42) and used for conveying fertilizer to the ditching position of the ditching device (3).

4. The walk-behind precise tobacco field fertilizer applicator according to claim 3, wherein: The detection device (5) further includes a rotation speed module (52) disposed on the driving device (2) for detecting driving speed information; The control device (6) receives the detected driving speed information and controls the operating frequency of the fertilizer application motor (43) according to the driving speed information.

5. The walk-behind precise fertilizer applicator for tobacco fields according to claim 3, wherein: The detection device (5) further includes a motor blockage sensor (53) disposed on the fertilizer application motor (43) for detecting whether the fertilizer application motor (43) is blocked and a fertilizer shortage sensor (54) disposed at the bottom of the fertilizer tank (41) for detecting whether there is a shortage of fertilizer in the fertilizer tank (41).

6. The walking type precise tobacco field fertilizer applicator according to claim 5, characterized in that: An alarm module (63) is further disposed on the control device (6), and the alarm module (63) is used to issue an alarm when the fertilizer application motor (43) is blocked and / or when there is a shortage of fertilizer in the fertilizer tank (41).

7. The walk-behind precise tobacco field fertilizer applicator according to claim 1, wherein: A setting module (61) for presetting the height distance and the ditching height is disposed on the control device (6).

Images