Automatic fertilizing device for corn cultivation

Abstract

The invention relates to an automatic fertilizing device for corn cultivation, which comprises a rack, wheels and a sensor are arranged at the bottom of the rack, and a fertilizer barrel which is divided into an upper cavity and a lower cavity is arranged at the top of the rack. A fertilizer mixing device is arranged in the upper cavity and used for mixing fertilizers, a dry fertilizer applying device is arranged in the lower cavity, and a liquid fertilizer applying device is arranged on the outer wall. All the fertilizing units in the device are connected with the intelligent controller, the fertilizer feeding amount can be automatically controlled according to the soil condition, and accurate and efficient fertilizing operation is achieved. The device relates to the technical field of agricultural automation, is reasonable in structure, can effectively improve the fertilization efficiency and the fertilizer utilization rate in the corn planting process, and is suitable for agricultural automation.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural automation, and in particular to an automatic fertilizing device for corn cultivation. Background Art

[0002] In modern agriculture, corn cultivation is one of the important crop production areas. Reasonable and scientific fertilization is essential to increase corn yields and improve soil health. However, traditional corn fertilization mainly relies on manual operation, which has problems such as low efficiency and uneven fertilization. It is also difficult to achieve precise fertilization, resulting in fertilizer waste and increased costs. It also has adverse effects on the soil and surrounding environment.

[0003] Specifically, the traditional fertilization method has the following problems: Manual fertilization or the use of simple mechanical equipment often cannot be accurately controlled according to the actual soil conditions, and the fertilizer distribution is uneven. Some areas may burn seedlings due to excessive fertilizer, while other areas may affect crop growth due to insufficient fertilizer. This uneven fertilization will directly affect the yield and quality of corn.

[0004] The traditional fertilization process usually only relies on the growth stage of the crop and empirical judgment, and it is difficult to perform intelligent fertilization based on specific data such as soil nutrients and humidity. This single fertilization method does not take into account the diversity of soil conditions, resulting in soil nutrient enrichment or barrenness in some areas, affecting crop health. In the development of modern agriculture, a fertilization device that can monitor soil conditions in real time and realize automatic adjustment is needed to more effectively meet the nutritional needs of corn at different growth stages.

[0005] Under large-scale planting conditions, manual fertilization is time-consuming and labor-intensive, and it is difficult to meet the fertilization needs of a large area in a short period of time. At the same time, due to the lack of automation function of the equipment, the fertilization process is not only inefficient, but also difficult to apply fertilizer to the roots of crops at the right time, affecting the utilization rate of fertilizer.

[0006] Because traditional fertilization equipment cannot accurately control the amount of fertilizer, over-fertilization often occurs, causing excess fertilizer to penetrate deep into the soil under the scouring of rainwater or irrigation water, and eventually enter the groundwater or flow into rivers, causing eutrophication of water bodies and damaging water quality ecology. At the same time, the ingredients in the fertilizer may also volatilize in the air, leading to the emission of gases such as ammonia, which has an adverse impact on air quality and climate.

[0007] During corn planting, crops usually require two different forms of fertilizers: dry fertilizer and liquid fertilizer. However, traditional fertilization methods make it difficult to flexibly and independently apply dry fertilizer and liquid fertilizer, and fail to adjust the form of fertilizer according to the growth stage of the crop or soil conditions, resulting in incomplete nutrient absorption by the crop. In addition, if dry fertilizer and liquid fertilizer are used at the same time, nutrient loss or excessive accumulation may occur, which is not conducive to crop growth.

[0008] Based on the above problems, modern agriculture urgently needs an efficient and accurate automatic fertilization device to realize real-time monitoring of soil conditions and intelligently adjust the amount of fertilizer, thereby improving the utilization efficiency of fertilizers, reducing adverse effects on the environment, and increasing crop yields. Summary of the invention

[0009] In view of this, the present invention aims to propose an automatic fertilization device for corn cultivation, which can effectively improve the fertilization efficiency and fertilizer utilization rate during corn planting and is suitable for agricultural automation.

[0010] To achieve the above object, the technical solution of the present invention is achieved as follows: An automatic fertilizing device for corn cultivation comprises a frame, a telescopic shaft is connected to the bottom of the frame, the telescopic shaft is connected to the frame by bolts, a wheel is connected to the telescopic shaft, and a sensor is provided at the bottom of the telescopic shaft; The top of the frame is connected to a fertilizer barrel, the top of the fertilizer barrel is provided with a feed inlet, a first partition is installed inside the fertilizer barrel, the fertilizer barrel is divided into an upper chamber and a lower chamber, a V-shaped hole is opened on the first partition, a fertilizer mixing device is provided inside the upper chamber, a dry fertilizer fertilizing device is provided inside the lower chamber, and a liquid fertilizer fertilizing device is connected to the outer wall of the upper chamber; The fertilizer mixing device, the dry fertilizer applying device, the liquid fertilizer applying device and the sensor are all connected to the intelligent controller and controlled by the intelligent controller.

[0011] Further, the fertilizer mixing device includes a first rotating shaft, rotating blades, a first rotating motor, a first opening and closing device, and a second switch device, the first rotating shaft is connected to the power output end of the first rotating motor through a shaft sleeve, the rotating blades are arranged around the first rotating shaft, a strip plate is installed at the bottom of the first rotating shaft, and the first rotating motor is installed at the top of the upper cavity; The first opening and closing device is installed on the V-shaped hole, and the first opening and closing device controls the fertilizer mixing device to communicate with the dry fertilizer fertilizing device; The second switch device is installed on the side wall of the upper cavity, and the second switch device controls the fertilizer mixing device to be connected with the liquid fertilizer applying device.

[0012] Furthermore, the dry fertilizer fertilizing device includes a second rotating shaft, a first arc plate, an opening and closing plate, a fourth telescopic motor, a first group of guide plates, a second group of guide plates, a second rotating shaft and a second arc plate, the second rotating shaft is installed on the top of the lower cavity, the first arc plate is connected to the second rotating shaft, one end of the second rotating shaft is connected to the rear wall of the lower cavity through a sleeve, the other end of the second rotating shaft passes through the front wall of the lower cavity and is connected to the second rotating motor through a bearing, and the second rotating motor is installed on the front side of the lower cavity; the lower cavity is divided into a lower left cavity and a lower right cavity by a second partition plate, the number of the second rotating shafts is two, the two second rotating shafts are installed above the second partition plate, the second arc plate is installed above the two second rotating shafts, the second rotating shaft is connected to the opening and closing plate, the fourth telescopic motor is installed on the second partition plate, the power output end of the fourth telescopic motor is connected to the opening and closing plate, the number of the fourth telescopic motors is two, and the positions of the two fourth telescopic motors are symmetrical.

[0013] Furthermore, a first group of guide plates are provided on the inner walls of the lower left cavity and the lower right cavity, and the length of the first group of guide plates becomes shorter from top to bottom. A second group of guide plates is provided on the opening and closing plate, and the second group of guide plates are arranged alternately with the first group of guide plates.

[0014] Furthermore, the first arc-shaped plate opens upward, and the second arc-shaped plate has an opening direction that is the same as that of the first arc-shaped plate.

[0015] Furthermore, the liquid fertilizer fertilization device includes a pipe clamp and a spray arm, the upper chamber is provided with a pipe inclined downward, the pipe clamp connects the spray arm with the pipe, and rubber is provided in the connection port where the spray arm and the pipe are connected.

[0016] Furthermore, the first opening and closing device includes a first telescopic motor, a first switch plate, a first rotating shaft and a second switch plate, the first telescopic motor is installed inside the first partition, the first switch plate is installed at the power output end of the first telescopic motor, the first rotating shaft is installed on the hole wall of the V-shaped hole, and the second switch plate is connected to the first rotating shaft.

[0017] Furthermore, the second switch device includes a second telescopic motor, a connecting plate, a switch block and a telescopic plate. The second telescopic motor is installed on the outer wall of the fertilizer barrel. One end of the connecting plate is connected to the power output end of the second telescopic motor, and the other end passes through the side wall of the fertilizer barrel and is connected to the switch block. The upper end of the switch block is connected to the telescopic plate, the bottom end of the telescopic plate is connected to the switch block, and the top end is fixedly installed on the side wall of the fertilizer barrel.

[0018] Furthermore, there are two symmetrically arranged V-shaped holes, there are two symmetrically arranged feeding ports, and a cover is provided on the top of the feeding port.

[0019] Furthermore, the fertilizer barrel is provided with a display screen, the display screen is connected to the intelligent controller, and parameters are displayed on the display screen.

[0020] Compared with the prior art, the present invention has the following advantages: The automatic fertilizing device for corn cultivation of the present invention has the following beneficial effects: Multiple fertilizers can be processed and applied at the same time: The fertilizer barrel of the device is divided into an upper chamber and a lower chamber by the first partition. The upper chamber is equipped with a fertilizer mixing device to mix the fertilizers, and the lower chamber is equipped with a dry fertilizer fertilization device. The outer wall of the upper chamber is also connected to a liquid fertilizer fertilization device. This allows dry fertilizer and liquid fertilizer to be processed and applied through corresponding devices respectively, which can meet the fertilization needs of different types of fertilizers during corn planting at the same time, without the need to use different equipment for operation, saving production costs and effectively improving the overall efficiency of fertilization.

[0021] Precise control of fertilizer application amount: The fertilizer mixing device, dry fertilizer application device, and liquid fertilizer application device are all connected to the intelligent controller, and precise control of each fertilization link can be achieved through the intelligent controller. For example, in the dry fertilizer application device, the second rotating shaft is controlled by the second rotating motor to rotate so that the first arc plate swings left and right to control the discharge amount of dry fertilizer. The liquid fertilizer application device is connected to the spray arm through pipe clamps and other components to spray liquid fertilizer, and the spraying amount can also be precisely adjusted according to needs. This precise control can avoid fertilizer waste and improve fertilizer utilization.

[0022] Uniform mixing and fertilization: The first rotating shaft in the fertilizer mixing device rotates under the drive of the first rotating motor, and the rotating blades cooperate with the strip plates to evenly mix the fertilizer, ensuring the uniformity of the fertilizer composition after mixing, so that the corn can absorb nutrients more evenly during subsequent fertilization. The first set of guide plates, the second set of guide plates and other structures set in the dry fertilizer fertilization device can guide the dry fertilizer to fall more evenly for fertilization, which also helps to improve the uniformity of fertilizer distribution in the field, thereby improving the fertilizer utilization rate.

[0023] Adapt to different terrains: A telescopic shaft is connected to the bottom of the frame, and wheels are connected to the telescopic shaft. A sensor is provided at the bottom of the telescopic shaft. The sensor senses the fertilizer demand on the ground and can adjust the height of the wheel in conjunction with the telescopic shaft. It can better adapt to different terrains that may exist in corn planting fields, such as uneven ground, or adapt to the height of corn in different growth periods, to ensure the smooth movement of the device in the field and the fertilization operation. It is suitable for a variety of agricultural planting environments and has good applicability.

[0024] Intuitive display of parameters: The fertilizer barrel is equipped with a display screen, which is connected to the intelligent controller and can display relevant parameters in real time. The operator can intuitively understand the operating status of the device, fertilizer amount and other parameters through the display screen, which is convenient for timely adjustment and operation to ensure the accurate implementation of fertilization operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 This is an overall schematic diagram of the automatic fertilization device for corn cultivation according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the interior of the automatic fertilization device for corn cultivation according to an embodiment of the present invention; Figure 3 Another internal schematic diagram of the automatic fertilizing device for corn cultivation according to an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 2 A magnified image of point A; Figure 5 For the embodiment of the present invention Figure 2 Enlarged view of point C; Figure 6 For the embodiment of the present invention Figure 3 The enlarged view of point B; Figure 7 For the embodiment of the present invention Figure 3 The enlarged view of point D; Description of reference numerals: 1. Frame; 101. Telescopic shaft; 102. Bolt; 103. Wheel; 2. Fertilizer barrel; 201. Inlet; 202. Upper chamber; 203. Lower chamber; 2031. Lower left chamber; 2032. Lower right chamber; 204. Second partition; 205. First partition; 3. Fertilizer mixing device; 301. First rotating shaft; 302. Rotating blades; 303. First rotating motor; 304. First opening and closing device; 3041. First telescopic motor; 3042. First switch plate; 3043. First rotating shaft; 3044. Second switch plate; 305, second switch device; 3051, second telescopic motor; 3052, connecting plate; 3053, switch block; 3054, telescopic plate; 4, dry fertilizer fertilizing device; 401, second rotating shaft; 402, first arc plate; 403, opening and closing plate; 404, fourth telescopic motor; 405, first group of guide plates; 406, second group of guide plates; 407, second rotating shaft; 408, second arc plate; 409, second rotating motor; 5, liquid fertilizer fertilizing device; 501, pipe clamp; 502, spray arm; 6, display screen; 7, sensor. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] The present embodiment relates to an automatic fertilization device for corn cultivation, which can effectively improve the fertilization efficiency and fertilizer utilization rate during corn planting and is suitable for agricultural automation.

[0030] Based on the above design concept, an exemplary structure of an automatic fertilization device for corn cultivation in this embodiment is as follows: Figure 1-7 As shown, it mainly includes a frame 1, a telescopic shaft 101 is connected to the bottom of the frame 1, the telescopic shaft 101 is connected to the frame 1 by bolts 102, a wheel 103 is connected to the telescopic shaft 101, and a sensor 7 is arranged at the bottom of the telescopic shaft 101; a fertilizer barrel 2 is connected to the top of the frame 1, a feeding port 201 is arranged on the top of the fertilizer barrel 2, a first partition 205 is installed inside the fertilizer barrel 2, and the fertilizer barrel 2 is divided into an upper chamber 202 and a lower chamber 203, a V-shaped hole is opened on the first partition 205, a fertilizer mixing device 3 is arranged inside the upper chamber 202, a dry fertilizer fertilizing device 4 is arranged inside the lower chamber 203, and a liquid fertilizer fertilizing device 5 is connected to the outer wall of the upper chamber 202; the fertilizer mixing device 3, the dry fertilizer fertilizing device 4, the liquid fertilizer fertilizing device 5 and the sensor 7 are all connected to the intelligent controller and controlled by the intelligent controller.

[0031] The fertilizer mixing device 3 includes a first rotating shaft 301, a rotating blade 302, a first rotating motor 303, a first opening and closing device 304 and a second switch device 305. The first rotating shaft 301 is connected to the power output end of the first rotating motor 303 through a sleeve. The rotating blade 302 is arranged around the first rotating shaft 301. A strip plate is installed at the bottom of the first rotating shaft 301. The first rotating motor 303 is installed on the top of the upper cavity 202. The first rotating motor 303 controls the rotation of the first rotating shaft 301. The rotating blade 302 cooperates with the strip plate to evenly mix the waste; the first opening and closing device 304 is installed on the V-shaped hole, and the first opening and closing device 304 controls the fertilizer mixing device 3 to be connected with the dry fertilizer fertilizing device 4; the second switch device 305 is installed on the side wall of the upper cavity 202, and the second switch device 305 controls the fertilizer mixing device 3 to be connected with the liquid fertilizer fertilizing device 5.

[0032] The dry fertilizer fertilizing device 4 includes a second rotating shaft 401, a first curved plate 402, an opening and closing plate 403, a fourth telescopic motor 404, a first group of guide plates 405, a second group of guide plates 406, a second rotating shaft 407, a second curved plate 408 and a second rotating motor 409. The second rotating shaft 401 is installed on the top of the lower cavity 203, the first curved plate 402 is connected to the second rotating shaft 401, one end of the second rotating shaft 401 is connected to the rear wall of the lower cavity 203 through a sleeve, and the other end of the second rotating shaft 401 passes through the front wall of the lower cavity 203 and is connected to the second rotating motor 409 through a bearing. The second rotating motor 409 is installed on the front side of the lower cavity 203, and the second rotating motor 409 controls the rotation of the second rotating shaft 401 so that the first curved plate 402 swings left and right.

[0033] The lower chamber 203 is divided into a lower left chamber 2031 and a lower right chamber 2032 by the second partition 204. The number of the second rotating shafts 407 is two. The two second rotating shafts 407 are installed above the second partition 204. The second arc plate 408 is installed above the two second rotating shafts 407. The second rotating shaft 407 is connected to the opening and closing plate 403. The fourth telescopic motor 404 is installed on the second partition 204. The power output end of the fourth telescopic motor 404 is connected to the opening and closing plate 403. The number of the fourth telescopic motor 404 is two, and the positions of the two fourth telescopic motors 404 are symmetrical.

[0034] A first set of guide plates 405 are provided on the inner side walls of the lower left cavity 2031 and the lower right cavity 2032 , and the length of the first set of guide plates 405 decreases from top to bottom. A second set of guide plates 406 are provided on the opening and closing plate 403 , and the second set of guide plates 406 are arranged alternately with the first set of guide plates 405 .

[0035] The first curved plate 402 opens upward, and the second curved plate 408 opens in the same direction as the first curved plate 402 .

[0036] The liquid fertilizer fertilizing device 5 comprises a pipe clamp 501 and a spray arm 502. A pipe obliquely downward is provided on the upper chamber 202. The pipe clamp 501 connects the spray arm 502 to the pipe. A rubber is provided in the connection port between the spray arm 502 and the pipe.

[0037] The first opening and closing device 304 includes a first telescopic motor 3041, a first switch plate 3042, a first rotating shaft 3043 and a second switch plate 3044. The first telescopic motor 3041 is installed inside the first partition plate 205, the first switch plate 3042 is installed at the power output end of the first telescopic motor 3041, the first rotating shaft 3043 is installed on the hole wall of the V-shaped hole, and the second switch plate 3044 is connected to the first rotating shaft 3043.

[0038] The second switch device 305 includes a second telescopic motor 3051, a connecting plate 3052, a switch block 3053 and a telescopic plate 3054. The second telescopic motor 3051 is installed on the outer wall of the fertilizer barrel 2. One end of the connecting plate 3052 is connected to the power output end of the second telescopic motor 3051, and the other end passes through the side wall of the fertilizer barrel 2 and is connected to the switch block 3053. The upper end of the switch block 3053 is connected to the telescopic plate 3054, the bottom end of the telescopic plate 3054 is connected to the switch block 3053, and the top end is fixedly installed on the side wall of the fertilizer barrel 2.

[0039] There are two symmetrically arranged V-shaped holes, two symmetrically arranged feeding ports 201 , and a cover body is provided on the top of the feeding port 201 .

[0040] A display screen 6 is provided on the fertilizer barrel 2 , and the display screen 6 is connected to the intelligent controller, and parameters are displayed on the display screen 6 .

[0041] When the automatic fertilizing device for corn cultivation described in this embodiment is used, the specific steps are as follows: 1. Device Preparation First, the device is moved to the target fertilization area. The height of the wheel 103 is adjusted by the telescopic shaft 101 so that the device is stably supported on the ground at a suitable height. The sensor 7 is ensured to be in working state to obtain information such as soil moisture and nutrients in real time.

[0042] 2. Fertilizer preparation Solid fertilizer or liquid fertilizer is added into the upper chamber 202 of the fertilizer barrel 2. The upper chamber 202 is separated from the lower chamber 203 by the first partition 205 to ensure that the solid fertilizer does not fall when not in use, and the upper chamber 202 is separated from the liquid fertilizer fertilizing device 5 by the second switch device 305 to ensure that the liquid fertilizer does not spray when not in use.

[0043] 3. Intelligent controller settings Fertilization parameters are set on the display screen 6, including the amount of fertilizer per mu, the frequency of fertilizer application, etc. The intelligent controller analyzes the soil information detected by the sensor 7 and automatically adjusts the fertilization operation.

[0044] 4. Fertilizer mixing and dry fertilizer application Start the fertilizer mixing device 3: the intelligent controller controls the first rotating motor 303 to drive the first rotating shaft 301 to rotate, and the rotating blades 302 cooperate with the strip plates to evenly stir the solid fertilizer in the upper cavity 202 to achieve a suitable fertilization state.

[0045] Open the first opening and closing device 304: During corn planting, when dry fertilizer needs to be applied to the crop, the intelligent controller starts the first opening and closing device 304, the V-shaped hole opens, and the stirred fertilizer enters the lower chamber 203 from the upper chamber 202. The lower chamber 203 guides the fertilizer to the first group of guide plates 405 and the second group of guide plates 406 located in the lower left chamber 2031 and the lower right chamber 2032 respectively through the first arc plate 402.

[0046] The dry fertilizer fertilizing device is started: the intelligent controller controls the fourth telescopic motor 404 to drive the opening and closing plate 403 to open and close to a suitable opening size, and discharges the dry fertilizer evenly. The intelligent controller controls the second rotating shaft 401 to drive the first arc plate 402 to swing left and right, and the fertilizer slowly falls into the lower left cavity 2031 and the lower right cavity 2032, and then accurately enters the soil through the first set of guide plates 405 and the second set of guide plates 406.

[0047] 5. Liquid fertilizer application During the corn planting process, when liquid fertilizer needs to be applied to the crop, the intelligent controller controls the second switch device 305 to connect the upper chamber 202 with the liquid fertilizer application device 5 .

[0048] The spray arm 502 and the upper chamber 202 of the fertilizer barrel 2 are fixedly connected by a pipe clamp 501, and the liquid fertilizer enters the spray arm 502 along the oblique pipe and is evenly sprinkled on the soil, ensuring that the coverage and application amount of the liquid fertilizer meet the set requirements.

[0049] 6. Fertilization process monitoring and feedback During the fertilization process, the sensor 7 continuously monitors the soil conditions, and the intelligent controller adjusts the amount of dry fertilizer or liquid fertilizer according to the real-time data fed back by the sensor. The display screen 6 simultaneously displays the current fertilization parameters, which is convenient for the operator to view and adjust.

[0050] 7. End of fertilization When the set amount of fertilizer is reached, the intelligent controller stops the operation of each fertilization device and closes the corresponding opening and closing device. At this time, the device can perform the fertilization operation again according to the set frequency or wait for the next fertilization instruction.

[0051] This embodiment realizes the automatic mixing and distribution of dry fertilizer or liquid fertilizer, making the corn cultivation and fertilization process more efficient and accurate, avoiding fertilizer waste and soil pollution problems, and greatly improving corn yield and fertilizer utilization.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic fertilizing device for corn cultivation, comprising a frame (1), a telescopic shaft (101) being connected to the bottom of the frame (1), the telescopic shaft (101) being connected to the frame (1) via bolts (102), a wheel (103) being connected to the telescopic shaft (101), and a sensor (7) being provided at the bottom of the telescopic shaft (101); The top of the frame (1) is connected to a fertilizer barrel (2), which is characterized by: The fertilizer barrel (2) is provided with a material inlet (201) at the top, and a first partition (205) is installed inside the fertilizer barrel (2) to divide the fertilizer barrel (2) into an upper chamber (202) and a lower chamber (203). The first partition (205) is provided with a V-shaped hole. A fertilizer mixing device (3) is provided inside the upper chamber (202), a dry fertilizer applying device (4) is provided inside the lower chamber (203), and a liquid fertilizer applying device (5) is connected to the outer wall of the upper chamber (202); The fertilizer mixing device (3), the dry fertilizer applying device (4), the liquid fertilizer applying device (5) and the sensor (7) are all connected to the intelligent controller and are controlled by the intelligent controller.

2. The automatic fertilization device for corn cultivation according to claim 1, characterized in that: The fertilizer mixing device (3) comprises a first rotating shaft (301), rotating blades (302), a first rotating motor (303), a first opening and closing device (304) and a second switching device (305); the first rotating shaft (301) is connected to a power output end of the first rotating motor (303) via a shaft sleeve; the rotating blades (302) are arranged around the first rotating shaft (301); a strip plate is installed at the bottom of the first rotating shaft (301); and the first rotating motor (303) is installed at the top of the upper chamber (202); The first opening and closing device (304) is installed on the V-shaped hole, and the first opening and closing device (304) controls the fertilizer mixing device (3) to communicate with the dry fertilizer fertilizing device (4); The second switch device (305) is installed on the side wall of the upper chamber (202), and the second switch device (305) controls the fertilizer mixing device (3) to communicate with the liquid fertilizer application device (5).

3. The automatic fertilization device for corn cultivation according to claim 1, characterized in that: The dry fertilizer fertilizing device (4) comprises a second rotating shaft (401), a first curved plate (402), an opening and closing plate (403), a fourth telescopic motor (404), a first group of guide plates (405), a second group of guide plates (406), a second rotating shaft (407) and a second curved plate (408), wherein the second rotating shaft (401) is mounted on the top of the lower chamber (203), the first curved plate (402) is connected to the second rotating shaft (401), one end of the second rotating shaft (401) is connected to the rear wall surface of the lower chamber (203) via a shaft sleeve, the other end of the second rotating shaft (401) passes through the front wall surface of the lower chamber (203) and is connected to a second rotating motor (409) via a bearing, and the second rotating motor (409) is mounted on the lower chamber (203). The front side of the cavity (203); the lower cavity (203) is divided into a lower left cavity (2031) and a lower right cavity (2032) by a second partition (204); the number of the second rotating shafts (407) is two, the two second rotating shafts (407) are installed above the second partition (204), the second arc-shaped plate (408) is installed above the two second rotating shafts (407), the second rotating shaft (407) is connected to the opening and closing plate (403), the fourth telescopic motor (404) is installed on the second partition (204), the power output end of the fourth telescopic motor (404) is connected to the opening and closing plate (403), the number of the fourth telescopic motor (404) is two, and the two fourth telescopic motors (404) are symmetrically positioned.

4. The automatic fertilization device for corn cultivation according to claim 3, characterized in that: A first group of guide plates (405) are provided on the inner side walls of the lower left cavity (2031) and the lower right cavity (2032), the length of the first group of guide plates (405) gradually decreasing from top to bottom, and a second group of guide plates (406) are provided on the opening and closing plate (403), the second group of guide plates (406) and the first group of guide plates (405) being arranged in an alternating manner.

5. The automatic fertilization device for corn cultivation according to claim 3, characterized in that: The first curved plate (402) opens upward, and the second curved plate (408) opens in the same direction as the first curved plate (402).

6. The automatic fertilization device for corn cultivation according to claim 1, characterized in that: The liquid fertilizer fertilizing device (5) comprises a pipe clamp (501) and a spray arm (502); a pipe obliquely downward is provided on the upper chamber (202); the pipe clamp (501) connects the spray arm (502) to the pipe; and rubber is provided in the connection port between the spray arm (502) and the pipe.

7. The automatic fertilization device for corn cultivation according to claim 2, characterized in that: The first opening and closing device (304) comprises a first telescopic motor (3041), a first switch plate (3042), a first rotating shaft (3043) and a second switch plate (3044); the first telescopic motor (3041) is installed inside the first partition plate (205); the first switch plate (3042) is installed at the power output end of the first telescopic motor (3041); the first rotating shaft (3043) is installed on the hole wall of the V-shaped hole; and the second switch plate (3044) is connected to the first rotating shaft (3043).

8. The automatic fertilization device for corn cultivation according to claim 2, characterized in that: The second switch device (305) comprises a second telescopic motor (3051), a connecting plate (3052), a switch block (3053) and a telescopic plate (3054); the second telescopic motor (3051) is mounted on the outer wall of the fertilizer barrel (2); one end of the connecting plate (3052) is connected to the power output end of the second telescopic motor (3051); the other end passes through the side wall of the fertilizer barrel (2) and is connected to the switch block (3053); the upper end of the switch block (3053) is connected to the telescopic plate (3054); the lower end of the telescopic plate (3054) is connected to the switch block (3053); and the top end is fixedly mounted on the side wall of the fertilizer barrel (2).

9. The automatic fertilization device for corn cultivation according to claim 2, characterized in that: There are two V-shaped holes arranged symmetrically, there are two feeding ports (201) arranged symmetrically, and a cover body is provided on the top of the feeding port (201).

10. The automatic fertilization device for corn cultivation according to claim 1, characterized in that: The fertilizer barrel (2) is provided with a display screen (6), the display screen (6) is connected to the intelligent controller, and parameters are displayed on the display screen (6).

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