Layered fertilizer applicator for agricultural production

Abstract

The invention provides a layered fertilizer applicator for agricultural production, and belongs to the field of agricultural machinery, the layered fertilizer applicator comprises a fertilizer applicator and a hydraulic cylinder arranged on the fertilizer applicator, the hydraulic cylinder can drive a ditching rake to lift, and the outer side of the fertilizer applicator is slidably connected with a mounting rack; the uniform fertilization mechanism can be used for uniformly fertilizing after the furrowing harrow is used for furrowing; the soil covering mechanism is arranged on the right side of the mounting frame, the uniform fertilization mechanism is linked with the soil covering mechanism, and the soil covering mechanism can cover the fertilizer; by arranging the uniform fertilization mechanism linked with the soil covering mechanism, a discharging pipe can be driven to axially rotate in a reciprocating manner, so that a discharging funnel can axially rotate in a reciprocating manner in a ditch, a fertilizer is dispersed and uniformly dropped, the fertilizer is prevented from being easily concentrated at a certain point in the ditch, and nutrients in the ditch are homogenized; the nutrient absorption efficiency of crop roots is improved.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and more particularly to a hierarchical fertilizer applicator for agricultural production. Background Art

[0002] A hierarchical fertilizer applicator for agricultural production is an agricultural machinery that can accurately apply fertilizers at different depth levels according to the characteristics of crop root distribution and soil nutrient requirements. During the initial growth stage of corn, shallow nutrients are needed to promote seedling development, and deep nutrients are needed to support reproductive growth in the middle and late stages. Therefore, when applying fertilizers at different times, it is necessary to accurately apply fertilizers at different depth levels. When the hierarchical fertilizer applicator is applying fertilizers, a furrow opener is needed to open furrows. The furrow opener separates the soil on both sides of the furrow, and the furrow has a certain width. However, most of the existing hierarchical fertilizer applicators apply fertilizers in a single-point straight line during fertilization, resulting in uneven fertilization. The fertilizers are easily concentrated at a certain point in the furrow, leading to local nutrient surplus while nutrient deficiency in other areas, reducing the efficiency of crop roots absorbing nutrients. Secondly, after fertilization, it is difficult for the existing hierarchical fertilizer applicator to quickly cover the furrows with soil. After the furrows are opened, the soil is exposed, and the surface moisture evaporates quickly, causing the soil to cake. The caking reduces the soil porosity, and when using the caked soil to cover the furrows, the nutrient diffusion channels are blocked, and the fertilizer nutrients are difficult to be evenly distributed around the roots, so that the crop roots are difficult to absorb nutrients, affecting the growth of crops. How to invent a hierarchical fertilizer applicator for agricultural production to improve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0003] To make up for the above deficiencies, the present invention provides a hierarchical fertilizer applicator for agricultural production, aiming to improve the problem that most of the existing hierarchical fertilizer applicators apply fertilizers in a single-point straight line during fertilization, resulting in uneven fertilization, the fertilizers are easily concentrated at a certain point in the furrow, leading to local nutrient surplus while nutrient deficiency in other areas, and reducing the efficiency of crop roots absorbing nutrients.

[0004] The present invention is implemented as follows: The present invention provides a layered fertilizer applicator for agricultural production, comprising a fertilizer applicator and a hydraulic cylinder arranged on the fertilizer applicator. A ditching harrow is arranged outside the fertilizer applicator. The hydraulic cylinder can drive the ditching harrow to lift and can dig ditches of different depths. An installation frame is slidably connected to the outside of the fertilizer applicator. The layered fertilizer applicator further includes: a uniform fertilization mechanism: the uniform fertilization mechanism is arranged on the installation frame and can uniformly fertilize after the ditching harrow digs a ditch; a soil covering mechanism: the soil covering mechanism is arranged on the right side of the installation frame. The uniform fertilization mechanism is linked with the soil covering mechanism, and the soil covering mechanism can cover the fertilizer; a vibration mechanism: the vibration mechanism is arranged inside the soil covering mechanism and is linked with the soil covering mechanism. The vibration mechanism can intermittently knock the uniform fertilization mechanism to ensure the smoothness of fertilizer feeding.

[0005] Preferably, a lifting plate is connected to the power output end of the hydraulic cylinder. A guide rail is arranged at the bottom of the lifting plate. A reinforcing plate is arranged on the inner wall of the ditching harrow. One end of the guide rail is connected to the top of the reinforcing plate. A guide plate is slidably connected to the outer wall of the guide rail. An electric telescopic rod is arranged at the bottom of the lifting plate. One end of the electric telescopic rod is connected to the top of the guide plate. The bottom of the installation frame is connected to the top of the guide plate.

[0006] Preferably, the uniform fertilization mechanism includes a feeding pipe arranged inside the installation frame. A feeding funnel is arranged at one end of the feeding pipe. A support block is sleeved on the outer wall of the feeding pipe. The side wall of the support block is connected to the side wall of the installation frame. A rotary joint is arranged at the other end of the feeding pipe. A support pipe penetrates through the top of the installation frame. One end of the support pipe is connected to the rotary joint. A delivery pipe is arranged at the other end of the support pipe. A pump body is arranged on the top of the fertilizer applicator. One end of the delivery pipe is connected to the pump body. A fertilizer suction pipe is arranged at one end of the pump body. One end of the fertilizer suction pipe is communicated with the inside of the fertilizer applicator. A disc is rotatably connected to the right side of the installation frame. A first connecting rod is hinged to the top of the disc. A moving plate is slidably connected to the right side of the installation frame. One end of the first connecting rod is hinged to the moving plate. A rack is arranged on the side wall of the moving plate. A gear meshing with the rack is sleeved and installed on the outer wall of the feeding pipe.

[0007] Preferably, a slide bar penetrates through the side wall of the moving plate movably. One end of the slide bar is connected to the inner side wall of the installation frame.

[0008] Preferably, the soil covering mechanism includes a support frame provided on the right side of the mounting frame. The side wall of the support frame is connected to the side wall of the guide plate. A movable plate is slidably connected inside the support frame. Second connecting rods are hinged to both ends of the movable plate. The two groups of second connecting rods are rotatably connected to the inner wall of the support frame. Support springs are provided on the side walls of the two groups of second connecting rods. One ends of the two groups of support springs are respectively connected to the two side walls of the support frame. Soil covering plates are provided at one ends of the two groups of second connecting rods. A fixing plate is provided on the side wall of the support frame. A rotating shaft penetrates through the top of the fixing plate. One end of the rotating shaft is connected to the bottom of the disc. The other end of the rotating shaft is provided with a cam that cooperates with the movable plate. A driven bevel gear is sleeved and installed on the outer wall of the rotating shaft. A motor is provided on the side wall of the fixing plate. The output end of the motor is connected with a driving bevel gear that meshes with the driven bevel gear.

[0009] Preferably, a through hole is formed in the top of the fixing plate. A bearing is sleeved and installed on the outer wall of the rotating shaft. The bearing cooperates with the inner wall of the through hole.

[0010] Preferably, slots are formed in the front and rear side walls of the support frame. The second connecting rods are rotatably connected in the slots.

[0011] Preferably, two support rods penetrate through the side wall of the movable plate movably. One ends of the two support rods are connected to the inner side wall of the support frame. The other ends of the two support rods are connected to the side wall of the guide plate.

[0012] Preferably, the vibration mechanism includes sliding plates sleeved on the outer walls of the two support rods. A connecting rod is provided on the side wall of the sliding plate. A knocking block is provided at one end of the connecting rod. Springs are sleeved on the outer walls of the two support rods. One end of the spring is connected to the side wall of the guide plate. The other end of the spring is connected to the side wall of the sliding plate.

[0013] Preferably, an arc-shaped groove is formed in the side wall of the knocking block, and a silica gel pad is provided on the inner wall of the arc-shaped groove.

[0014] The beneficial effects of the present invention are as follows: 1. By setting a hydraulic cylinder, a lifting plate, an electric telescopic rod, a guide rail and a guide plate, the present invention can realize the depth synchronous matching of the ditch-opening harrow and the soil covering mechanism (soil covering plate). After uniform fertilization, the soil covering mechanism can quickly cover the soil on both sides of the ditch into the ditch, avoid soil caking, ensure the smoothness of the nutrient diffusion channel, enable the fertilizer nutrients to be quickly and evenly distributed around the roots, and improve the growth of crops; 2. By setting a uniform fertilization mechanism linked with the soil covering mechanism, the present invention can drive the feeding pipe to rotate axially back and forth, so that the feeding funnel can rotate axially back and forth in the ditch, ensuring the discrete and uniform falling of the fertilizer, avoiding the fertilizer being easily concentrated at a certain point in the ditch, making the nutrients in the ditch uniform, and improving the efficiency of crop roots absorbing nutrients; 3. The present invention is provided with a vibration mechanism linked to the soil covering mechanism. The knocking block of the vibration mechanism is coupled with the movement of the soil covering plate through a support rod, and vibration cleaning and blockage removal are synchronously triggered during soil covering operation, avoiding blockage of the feeding pipe and ensuring the smoothness of the feeding of the feeding pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the ditching harrow and the soil covering plate of the present invention; Figure 3 is a schematic diagram of the structure of the feeding pipe and the feeding funnel of the present invention; Figure 4 is the present invention Figure 3 a magnified view of the structure at A in; Figure 5 is the present invention Figure 3 a magnified view of the structure at B in; Figure 6 is a schematic diagram of the structure of the soil covering mechanism and the vibration mechanism of the present invention; Figure 7 is the present invention Figure 6 a magnified view of the structure at C in; Figure 8 is the present invention Figure 6 a magnified view of the structure at D in.

[0017] In the figure: 1, fertilizer applicator; 2, uniform fertilization mechanism; 200, fertilizer suction pipe; 201, pump body; 202, delivery pipe; 203, support pipe; 204, disc; 205, feeding pipe; 206, support block; 207, feeding funnel; 208, first connecting rod; 209, moving plate; 210, sliding rod; 211, rack; 212, gear; 213, rotary joint; 3, soil covering mechanism; 300, soil covering plate; 301, rotating shaft; 302, fixing plate; 303, movable plate; 304, second connecting rod; 305, support frame; 306, slotted hole; 307, support spring; 308, driving bevel gear; 309, driven bevel gear; 310, cam; 311, support rod; 312, motor; 4, ditching harrow; 5, hydraulic cylinder; 6, lifting plate; 7, vibration mechanism; 700, sliding plate; 701, connecting rod; 702, knocking block; 703, spring; 8, mounting frame; 9, electric telescopic rod; 10, reinforcing plate; 11, guide rail; 12, guide plate. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Example, refer to Figures 1-8 , a layered fertilizer applicator for agricultural production, including a fertilizer applicator 1 and a hydraulic cylinder 5 provided on the fertilizer applicator 1. The fertilizer applicator 1 is driven by a driving device to move on the field. This is the prior art. A ditch opener 4 is provided outside the fertilizer applicator 1. The hydraulic cylinder 5 can drive the ditch opener 4 to lift and lower, and can open ditches of different depths. An installation frame 8 is slidably connected to the outside of the fertilizer applicator 1. It further includes: a uniform fertilizer application mechanism 2: the uniform fertilizer application mechanism 2 is provided on the installation frame 8, and the uniform fertilizer application mechanism 2 can uniformly apply fertilizer after the ditch opener 4 opens a ditch; a soil covering mechanism 3: the soil covering mechanism 3 is provided on the right side of the installation frame 8, the uniform fertilizer application mechanism 2 is linked with the soil covering mechanism 3, and the soil covering mechanism 3 can cover the fertilizer; a vibration mechanism 7: the vibration mechanism 7 is provided inside the soil covering mechanism 3 and is linked with the soil covering mechanism 3, and the vibration mechanism 7 can intermittently knock the uniform fertilizer application mechanism 2 to ensure the smoothness of fertilizer feeding.

[0020] A lifting plate 6 is connected to the power output end of the hydraulic cylinder 5. A guide rail 11 is provided at the bottom of the lifting plate 6. A reinforcing plate 10 is provided on the inner wall of the ditch opener 4. One end of the guide rail 11 is connected to the top of the reinforcing plate 10. A guide plate 12 is slidably connected to the outer wall of the guide rail 11. An electric telescopic rod 9 is provided at the bottom of the lifting plate 6. One end of the electric telescopic rod 9 is connected to the top of the guide plate 12. The bottom of the installation frame 8 is connected to the top of the guide plate 12.

[0021] It should be noted that: the hydraulic cylinder 5 can drive the ditch opener 4 to move up and down, can dynamically adjust the opening of ditches of different depths according to the root systems of crops, and realize layered fertilization. When the ditch opener 4 opens a ditch, the ditch opener 4 separates the soil on both sides of the ditch. With the cooperation of the electric telescopic rod 9, the guide rail 11 and the guide plate 12, the soil covering plate 300 can be driven to lift up and down, can match ditches of different depths, and ensure that the soil covering plate 300 can push the soil on both sides of the ditch into the ditch to realize soil covering. The reinforcing plate 10 can enhance the structural strength of the ditch opener 4 and ensure the stability of the ditch opening depth in hard soil.

[0022] The uniform fertilization mechanism 2 includes a material discharge pipe 205 disposed inside an installation frame 8. One end of the material discharge pipe 205 is provided with a material discharge funnel 207. A support block 206 is sleeved on the outer wall of the material discharge pipe 205, and the side wall of the support block 206 is connected to the side wall of the installation frame 8. The other end of the material discharge pipe 205 is provided with a rotary joint 213. A support pipe 203 penetrates through the top of the installation frame 8. One end of the support pipe 203 is connected to the rotary joint 213, and the other end of the support pipe 203 is provided with a delivery pipe 202. A pump body 201 is disposed on the top of the fertilizer applicator 1. One end of the delivery pipe 202 is connected to the pump body 201. One end of the pump body 201 is provided with a fertilizer suction pipe 200, and one end of the fertilizer suction pipe 200 is communicated with the inside of the fertilizer applicator 1. A disc 204 is rotatably connected to the right side of the installation frame 8. A first connecting rod 208 is hinged to the top of the disc 204. A moving plate 209 is slidably connected to the right side of the installation frame 8. A slide rod 210 movably penetrates through the side wall of the moving plate 209. One end of the slide rod 210 is connected to the inner side wall of the installation frame 8. Under the action of the slide rod 210, the moving of the moving plate 209 is more stable, so that the moving plate 209 drives the rack 211 to move more stably. One end of the first connecting rod 208 is hinged to the moving plate 209. A rack 211 is disposed on the side wall of the moving plate 209. A gear 212 engaged with the rack 211 is sleeved and installed on the outer wall of the material discharge pipe 205.

[0023] It should be noted that: a spiral diversion groove is provided at the outlet of the material discharge funnel 207, and the rotation of the material discharge pipe 205 is coordinated to achieve the circumferential uniform distribution of the fertilizer. The pump body 201 pumps the fertilizer in the fertilizer applicator 1 into the material discharge pipe 205, and then the motor 312 is used to drive the driving bevel gear 308 to drive the driven bevel gear 309, so that the rotating shaft 301 synchronously drives the disc 204 and the cam 310. The disc 204 drives the first connecting rod 208 to perform a circular motion, so that the first connecting rod 208 can drive the moving plate 209 and the rack 211 to reciprocate. With the cooperation of the gear 212, the material discharge pipe 205 and the material discharge funnel 207 can be driven to rotate axially and reciprocally to achieve the uniform rotation and spreading of the fertilizer.

[0024] The soil covering mechanism 3 includes a support frame 305 provided on the right side of the mounting frame 8. The side wall of the support frame 305 is connected to the side wall of the guide plate 12. A movable plate 303 is slidably connected inside the support frame 305. Two groups of support rods 311 are movably penetrated through the side wall of the movable plate 303. One end of the two groups of support rods 311 is connected to the inner side wall of the support frame 305, and the other end of the two groups of support rods 311 is connected to the side wall of the guide plate 12. Under the action of the support rods 311, the movement of the movable plate 303 is more stable. Second connecting rods 304 are hinged at both ends of the movable plate 303. The two groups of second connecting rods 304 are rotatably connected to the inner wall of the support frame 305. Grooves 306 are opened on the front and rear side walls of the support frame 305. The second connecting rods 304 are rotatably connected in the grooves 306. Support springs 307 are provided on the side walls of the two groups of second connecting rods 304. One end of the two groups of support springs 307 is respectively connected to the two side walls of the support frame 305. Soil covering plates 300 are provided at one end of the two groups of second connecting rods 304. A fixing plate 302 is provided on the side wall of the support frame 305. A rotating shaft 301 penetrates through the top of the fixing plate 302. A through hole is opened at the top of the fixing plate 302. A bearing is sleeved on the outer wall of the rotating shaft 301, and the bearing is matched with the inner wall of the through hole. Under the cooperation of the bearing, the rotation of the rotating shaft 301 is more stable. One end of the rotating shaft 301 is connected to the bottom of the disc 204, and the other end of the rotating shaft 301 is provided with a cam 310 that cooperates with the movable plate 303. A driven bevel gear 309 is sleeved on the outer wall of the rotating shaft 301. A motor 312 is provided on the side wall of the fixing plate 302. The output end of the motor 312 is connected with a driving bevel gear 308 that meshes with the driven bevel gear 309.

[0025] It should be noted that when the cam 310 rotates, the convex part of the cam 310 indirectly squeezes the movable plate 303. Under the cooperation of the second connecting rod 304 and the support spring 307, the two soil covering plates 300 can be driven to rotate relatively and open and close, and the soil covering can be quickly completed.

[0026] The vibration mechanism 7 includes a sliding plate 700 sleeved on the outer walls of the two groups of support rods 311. A connecting rod 701 is provided on the side wall of the sliding plate 700. A knocking block 702 is provided at one end of the connecting rod 701. An arc-shaped groove is opened on the side wall of the knocking block 702, and a silica gel pad is provided on the inner wall of the arc-shaped groove. Springs 703 are sleeved on the outer walls of the two groups of support rods 311. One end of the spring 703 is connected to the side wall of the guide plate 12, and the other end of the spring 703 is connected to the side wall of the sliding plate 700.

[0027] It should be noted that during the soil covering process, the convex part of the cam 310 indirectly squeezes the sliding plate 700, and the sliding plate 700 compresses the spring 703. When the cam 310 is disengaged, the spring 703 releases energy to push the knocking block 702 to indirectly impact the outer wall of the feeding pipe 205. Under the action of the silica gel pad, the surface of the feeding pipe 205 can be protected when it is knocked.

[0028] Working principle: The fertilizer applicator 1 moves on the field. The hydraulic cylinder 5 drives the ditching harrow 4 to move up and down, and can dynamically adjust the depth of the ditches according to the roots of the crops. With the cooperation of the electric telescopic rod 9, the guide rail 11 and the guide plate 12, it can drive the soil covering plate 300 to move up and down, and can match ditches of different depths. When the fertilizer applicator 1 moves, the ditching harrow 4 moves accordingly, and the ditching harrow 4 can dig ditches. While ditching, the pump body 201 sucks in the fertilizer through the fertilizer suction pipe 200, and enters the blanking pipe 205 through the conveying pipe 202, the support pipe 203 and the rotary joint 213. The motor 312 drives the driving bevel gear 308 to drive the driven bevel gear 309, so that the rotating shaft 301 synchronously drives the disc 204 and the cam 310. The disc 204 drives the first connecting rod 208 to make a circular motion, so that the first connecting rod 208 can drive the moving plate 209 and the rack 211 to reciprocate. With the cooperation of the gear 212, it can drive the blanking pipe 205 and the blanking funnel 207 to rotate axially and reciprocally, realizing uniform rotary fertilizer spreading. When the cam 310 rotates, it indirectly squeezes the movable plate 303. When the movable plate 303 moves, it drives the second connecting rod 304 to rotate, and the second connecting rod 304 drives the soil covering plate 300 to complete opening and closing for soil covering. While covering the soil, the convex part of the cam 310 indirectly squeezes the sliding plate 700, and the sliding plate 700 compresses the spring 703. When the cam 310 is out of contact, the spring 703 releases energy to push the knocking block 702 to indirectly impact the outer wall of the blanking pipe 205 to prevent the blanking pipe 205 from being blocked.

[0029] It should be noted that the specific model and specification of the motor need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0030] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hierarchical fertilizing machine for agricultural production, comprising a fertilizing machine (1) and a hydraulic cylinder (5) arranged on the fertilizing machine (1). An open ditch harrow (4) is provided outside the fertilizing machine (1), and the hydraulic cylinder (5) can drive the open ditch harrow (4) to lift and can dig ditches of different depths. It is characterized in that, A mounting frame (8) is slidably connected to the outside of the fertilizer applicator (1), and further includes: Uniform fertilizing mechanism (2): The uniform fertilizing mechanism (2) is arranged on the mounting frame (8), and the uniform fertilizing mechanism (2) can perform uniform fertilization after the furrowing harrow (4) furrows. Soil covering mechanism (3): The soil covering mechanism (3) is arranged on the right side of the mounting frame (8), the uniform fertilizing mechanism (2) is linked with the soil covering mechanism (3), and the soil covering mechanism (3) can cover the fertilizer. Vibration mechanism (7): The vibration mechanism (7) is arranged inside the soil covering mechanism (3) and is linked with the soil covering mechanism (3). The vibration mechanism (7) can indirectly knock the uniform fertilizing mechanism (2) to ensure the smoothness of fertilizer feeding.

2. The layered fertilizer applicator for agricultural production according to claim 1, wherein, A lifting plate (6) is connected to the power output end of the hydraulic cylinder (5). A guide rail (11) is arranged at the bottom of the lifting plate (6). A reinforcing plate (10) is arranged on the inner wall of the furrowing harrow (4). One end of the guide rail (11) is connected to the top of the reinforcing plate (10). A guide plate (12) is slidably connected to the outer wall of the guide rail (11). An electric telescopic rod (9) is arranged at the bottom of the lifting plate (6). One end of the electric telescopic rod (9) is connected to the top of the guide plate (12). The bottom of the mounting frame (8) is connected to the top of the guide plate (12).

3. The layered fertilizer applicator for agricultural production according to claim 1, characterized in that The uniform fertilizing mechanism (2) includes a feeding pipe (205) arranged inside the mounting frame (8). A feeding funnel (207) is arranged at one end of the feeding pipe (205). A support block (206) is sleeved on the outer wall of the feeding pipe (205). The side wall of the support block (206) is connected to the side wall of the mounting frame (8). A rotary joint (213) is arranged at the other end of the feeding pipe (205). A support pipe (203) penetrates through the top of the mounting frame (8). One end of the support pipe (203) is connected to the rotary joint (213). A delivery pipe (202) is arranged at the other end of the support pipe (203). A pump body (201) is arranged on the top of the fertilizer applicator (1). One end of the delivery pipe (202) is connected to the pump body (201). A fertilizer suction pipe (200) is arranged at one end of the pump body (201). One end of the fertilizer suction pipe (200) is communicated with the inside of the fertilizer applicator (1). A disc (204) is rotatably connected to the right side of the mounting frame (8). A first connecting rod (208) is hinged to the top of the disc (204). A moving plate (209) is slidably connected to the right side of the mounting frame (8). One end of the first connecting rod (208) is hinged to the moving plate (209). A rack (211) is arranged on the side wall of the moving plate (209). A gear (212) meshing with the rack (211) is sleeved and installed on the outer wall of the feeding pipe (205).

4. The layered fertilizer applicator for agricultural production according to claim 3, characterized in that, A slide bar (210) movably penetrates through the side wall of the moving plate (209). One end of the slide bar (210) is connected to the inner side wall of the mounting frame (8).

5. The layered fertilizer applicator for agricultural production according to claim 1, wherein, The soil covering mechanism (3) includes a support frame (305) provided on the right side of the mounting frame (8). The side wall of the support frame (305) is connected to the side wall of the guide plate (12). A movable plate (303) is slidably connected inside the support frame (305). Second connecting rods (304) are hinged at both ends of the movable plate (303). The two groups of second connecting rods (304) are rotatably connected to the inner wall of the support frame (305). Support springs (307) are provided on the side walls of the two groups of second connecting rods (304). One end of each of the two groups of support springs (307) is connected to the two side walls of the support frame (305) respectively. Soil covering plates (300) are provided at one end of each of the two groups of second connecting rods (304). A fixed plate (302) is provided on the side wall of the support frame (305). A rotating shaft (301) penetrates through the top of the fixed plate (302). One end of the rotating shaft (301) is connected to the bottom of the disc (204). A cam (310) cooperating with the movable plate (303) is provided at the other end of the rotating shaft (301). A driven bevel gear (309) is sleeved and installed on the outer wall of the rotating shaft (301). A motor (312) is provided on the side wall of the fixed plate (302). A driving bevel gear (308) engaged with the driven bevel gear (309) is connected to the output end of the motor (312).

6. The layered fertilizer applicator for agricultural production according to claim 5, wherein, A through hole is formed in the top of the fixed plate (302). A bearing is sleeved and installed on the outer wall of the rotating shaft (301), and the bearing cooperates with the inner wall of the through hole.

7. The layering fertilizer applicator for agricultural production according to claim 5, characterized in that, Grooves (306) are formed in the front and rear side walls of the support frame (305), and the second connecting rods (304) are rotatably connected in the grooves (306).

8. A hierarchical fertilizer applicator for agricultural production according to claim 5, characterized in that, Two support rods (311) penetrate through the side wall of the movable plate (303) movably. One end of each of the two groups of support rods (311) is connected to the inner side wall of the support frame (305), and the other end of each of the two groups of support rods (311) is connected to the side wall of the guide plate (12).

9. The layered fertilizer applicator for agricultural production according to claim 5, characterized in that, The vibration mechanism (7) includes sliding plates (700) sleeved on the outer walls of the two groups of support rods (311). A connecting rod (701) is provided on the side wall of the sliding plate (700). A knocking block (702) is provided at one end of the connecting rod (701). Springs (703) are sleeved on the outer walls of the two groups of support rods (311). One end of each spring (703) is connected to the side wall of the guide plate (12), and the other end of each spring (703) is connected to the side wall of the sliding plate (700).

10. A layered fertilizer applicator for agricultural production according to claim 9, characterized in that, An arc-shaped groove is formed in the side wall of the knocking block (702), and a silica gel pad is provided on the inner wall of the arc-shaped groove.

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