Device and method for applying solid fertilizer to crops

Abstract

The invention provides a crop solid fertilizer applying device which comprises a fertilizer part, a fertilizer applying bin used for storing fertilizer, a quantitative conveying assembly arranged at the bottom of an inner cavity of the fertilizer applying bin and used for conveying the fertilizer, and an advancing part arranged below the fertilizer part, the advancing part comprises a connecting frame, and the connecting frame can be connected with an agricultural machine; the fertilizer applying device comprises a fertilizer applying bin, a quantitative conveying assembly is arranged in the fertilizer applying bin, and fertilizer can be quantitatively conveyed into a fertilizer groove through the quantitative conveying assembly, so that the fertilizer applying device moves along with the agricultural machine, and the fertilizer applying part comprises a fertilizer layering box assembled on one side of the fertilizer applying bin. The fertilizer falls into the layering groove after entering the fertilizer groove, then is arranged in the movement process according to the size, then enters the fertilizer application pipe through the feeding groove, and then can be directly injected into soil to complete the fertilizer application operation through high-pressure gas applied by the power part, so that the fertilizer application efficiency and the fertilizer application uniformity are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of fertilization, and in particular to a solid fertilizer fertilization device and a fertilization method for crops. Background Art

[0002] Fertilization refers to the agricultural technical measure of applying fertilizers to the soil or spraying them on plants to provide the nutrients needed by plants and maintain and improve soil fertility. The main purpose of fertilization is to increase crop yields, improve crop quality, improve soil fertility and increase economic benefits.

[0003] A high-yield peanut fertilization device disclosed in Chinese patent publication number CN202410736698.7 includes a vehicle frame, a handle fixedly mounted at the end of the vehicle frame, a lining plate symmetrically mounted on the edge of the vehicle frame, a transmission shaft penetrating the lining plate, and a walking wheel fixedly mounted at the end of the transmission shaft. A fertilizer supply assembly is arranged on the upper end surface of the vehicle frame near the handle, a mixing assembly is arranged on the side of the fertilizer supply assembly away from the handle, a soil-moving assembly is arranged on the vehicle frame away from the handle and close to the mixing assembly, a fertilizer covering assembly is arranged on the side of the soil-moving assembly away from the handle, and the upper end of the fertilizer covering assembly is fixedly connected to the vehicle frame, and the fertilizer covering assembly can plow the soil during fertilization to ensure the softness of the upper soil. After fertilization, The lower end of the arc-shaped soil scoop can spread the accumulated fertilizer flat, so that the fertilizer is evenly contacted in the upper soil layer, which improves the uniformity of the soil fertilizer around the peanut seeds. When the peanuts germinate and take root, the root burn problem can be avoided, thereby ensuring the peanut root system's ability to absorb fertilizer nutrients, and then ensuring the normal growth of peanuts. The soil covering unit can cooperate with the soil-moving component during the fertilization process to collect and crush the upper soil blocks. Then, after the fertilizer falls, the upper layer of the fertilizer is covered with soil to avoid direct exposure of the fertilizer, thereby reducing the loss of nutrients during subsequent watering. At the same time, it also avoids the compaction of the soil, enhances the soil's air permeability and water retention, and ensures the normal growth of peanuts.

[0004] In the prior art, when fertilizing crops, a soil-opening assembly is required. When fertilizing, the soil needs to be plowed first, and then the fertilizer is applied into the plowed furrow, and finally the soil needs to be covered. This makes the fertilization efficiency low, and the fertilizer will be offset when covering the soil, resulting in uneven fertilization. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides the following technical solution: a solid fertilizer fertilizing device for crops, comprising:

[0007] The fertilizer section is provided with a fertilizer storage bin for storing fertilizers, and a quantitative conveying assembly for conveying fertilizers is provided at the bottom of the inner cavity of the fertilizer storage bin;

[0008] A traveling part is arranged below the fertilizer part, and the traveling part includes a connecting frame, and the connecting frame can be connected to the agricultural machine so that the fertilizing device moves with the agricultural machine;

[0009] A fertilizing part, comprising a fertilizer stratification box mounted on one side of the fertilizing bin, wherein a plurality of groups of fertilizer troughs are provided inside the fertilizer stratification box, wherein stratification troughs are provided at the bottom of the fertilizer troughs, wherein the stratification troughs can transport fertilizers in stratified portions according to volume, wherein the fertilizer troughs are fixedly connected to a side of the fertilizer troughs away from the fertilizing bin with a number of fixing seats equal to the number of the fertilizer troughs, and the fixing seats are fixedly connected to a fertilizing pipe on a side of the fixing seats away from the fertilizer troughs;

[0010] The power unit is arranged in the fertilization unit, and includes an air pump. The output end of the air pump is fixedly connected to a gas main pipe. The outside of the gas main pipe is provided with air guide tubes whose number is equal to that of the fertilizer pipes. One end of the air guide tube extends into the fertilizer pipe, and the end of the air guide tube extending into the fertilizer pipe is fixedly connected to a trumpet pipe.

[0011] As a preferred embodiment of the present invention, the quantitative conveying assembly includes a partition, a transmission shaft and several groups of fixed seats arranged at intervals, the several groups of fixed seats are fixedly connected to the upper end surface of the partition, the partition is provided with several groups of guide grooves on the side facing the fertilizer stratification box, and the outside of the transmission shaft is fixedly connected with several groups of uniformly distributed disks.

[0012] As a preferred embodiment of this embodiment, several groups of the uniform distribution disks are respectively arranged in the gaps of several groups of fixing seats, several groups of the guide grooves correspond to the positions of several groups of the uniform distribution disks, and several groups of material containing grooves are opened outside the uniform distribution disks.

[0013] As a preferred embodiment of this embodiment, main shafts are installed on both sides of the connecting frame, a traveling wheel is installed on the end of the main shaft away from the connecting frame, one end of the transmission shaft extends to the outside of the fertilizer bin, a rotating disk 1 is installed on the outside of the extended end of the transmission shaft, a rotating disk 2 is installed on the outside of the main shaft on the same side as the extended end of the transmission shaft, and a belt is installed between the rotating disks 1 and 2.

[0014] As a preferred embodiment of the present invention, a fixing plate is fixedly connected to the outside of the fertilizer pipe, a balance bar is rotatably connected to the bottom of the fixing plate, a pad cover is fixedly connected to one end of the balance bar, an upper end surface of the pad cover is in contact with the bottom of the fertilizer pipe, and a counterweight is fixedly connected to the other end of the balance bar.

[0015] As a preference of this embodiment, a feeding trough is provided on the side of the fixing seat away from the fertilizer pipe, and the two sides of the feeding trough are respectively connected to the fertilizer pipe and the stratification trough.

[0016] As a preference of this embodiment, the bottom of the layering groove is an inclined surface, and the spacing between the layering grooves gradually decreases along the vertical direction.

[0017] As a preferred embodiment of this embodiment, the trumpet tube is trumpet-shaped, and the side of the trumpet tube with a larger inner diameter is fixedly connected to the inner wall of the fertilizer tube.

[0018] As a preferred embodiment of the present invention, a method for fertilizing crops with solid fertilizers adopts the above-mentioned device for fertilizing crops with solid fertilizers, including putting mixed solid fertilizers into a fertilizer bin, connecting the fertilizing device to an agricultural machine through a connecting frame, and driving the traveling wheel to rotate when the fertilizing device moves, and rotating the transmission shaft through a belt, thereby rotating the uniform distribution disk, and the fertilizer inside the fertilizing bin will enter the material storage tank, and the fertilizer inside the material storage tank will fall into the guide groove, and then enter the stratification groove through the guide groove. The fertilizer will be arranged according to the volume inside the stratification groove, and then enter the fertilizer pipe through the feed groove. At this time, the large fertilizer is at the top, and high-pressure gas is intermittently pumped into the gas transmission main pipe through an air pump. The high-pressure gas will act on the fertilizer inside the fertilizer pipe through the air guide pipe and the trumpet pipe, and the fertilizer accelerated by the high-pressure gas will push the pad cover open and be shot into the soil to be fertilized, thereby completing the fertilization operation.

[0019] (II) Beneficial effects

[0020] The present invention provides a solid fertilizer fertilizing device and a fertilizing method for crops, which have the following beneficial effects:

[0021] The present invention provides a fertilizer bin, wherein a quantitative conveying component is provided inside the fertilizer bin, and the fertilizer can be quantitatively conveyed to the inside of the fertilizer trough through the quantitative conveying component, and the fertilizer will fall into the stratification trough after entering the fertilizer trough, and then be arranged according to the volume during the movement, and then enter the inside of the fertilizer pipe through the feed trough, and then the high-pressure gas applied by the power unit allows the fertilizer to be directly injected into the soil to complete the fertilization operation, thereby effectively improving the fertilization efficiency and fertilization uniformity;

[0022] At the same time, along the direction of fertilizer movement, the depth of the stratification groove gradually increases, so that fertilizers of different sizes move at different slopes in the stratification groove, and then after entering the fertilizer tube, the largest fertilizer is at the top, so that the fertilizer can be better flushed out by the high-pressure gas;

[0023] In addition, both ends of the balance bar are respectively fixedly connected with a counterweight block and a cushion cover, and the resistance when the fertilizer is flushed out can be effectively reduced by adjusting the weight of the counterweight block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the solid fertilizer fertilizing device for crops of the present invention;

[0025] Figure 2 This is a structural schematic diagram of the other side of the solid fertilizer fertilizing device for crops of the present invention;

[0026] Figure 3 It is a schematic diagram of the connection structure of the fertilizer part and the fertilizing part of the present invention;

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the fertilizer portion of the present invention;

[0028] Figure 5 It is a schematic diagram of the uniform distribution plate structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the fertilization part of the present invention;

[0030] Figure 7 for Figure 6 A magnified view of the structure;

[0031] Figure 8 This is a schematic diagram of the structure of the fertilizer pipe of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the power unit of the present invention.

[0033] In the figure: 100 fertilizer bin, 101 sealing cover, 102 fixed seat, 103 uniform distribution plate, 104 partition, 105 guide groove, 106 transmission shaft, 200 travel wheel, 201 connecting frame, 300 air pump, 301 gas transmission main pipe, 302 air guide pipe, 303 trumpet pipe, 400 fertilizer layering box, 401 fertilizer pipe, 402 fixed plate, 403 fertilizer trough, 404 pad cover, 405 counterweight, 406 balance bar, 407 layering trough, 408 feeding trough, 409 fixed seat. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, 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 or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0039] Lily is not very demanding on the soil environment. Generally, in a sandy soil environment with deep, fertile and loose soil, lily bulbs grow rapidly, are white in color and have thick flesh. The soil pH value suitable for planting is about 5.5-6.5. Lily requires the best soil to be rich in humus, deep and loose soil, and can maintain proper moisture and good drainage.

[0040] like Figure 1-9 As shown, this embodiment provides a solid fertilizer fertilizing device for crops, comprising:

[0041] The fertilizer section is provided with a fertilizer bin 100 for storing fertilizers, and a quantitative conveying assembly for conveying fertilizers is provided at the bottom of the inner cavity of the fertilizer bin 100;

[0042] The traveling part is arranged below the fertilizer part, and the traveling part comprises a connecting frame 201, and the connecting frame 201 can be connected to the agricultural machine so that the fertilizing device moves with the agricultural machine;

[0043] The fertilizing part includes a fertilizer layering box 400 mounted on one side of the fertilizing bin 100, wherein a plurality of groups of fertilizer troughs 403 are provided inside the fertilizer layering box 400, and layering grooves 407 are provided at the bottom of the fertilizer troughs 403. The layering grooves 407 can transport fertilizers in layers according to volume, and the fertilizer troughs 403 are fixedly connected to the side away from the fertilizing bin 100 with the same number of fixing seats 409 as the fertilizer troughs 403, and the fixing seats 409 are fixedly connected to the side away from the fertilizer troughs 403 with the fertilizing pipes 401;

[0044] The power unit is arranged in the fertilization unit, and includes an air pump 300. The output end of the air pump 300 is fixedly connected to a gas main pipe 301. The outside of the gas main pipe 301 is provided with air guide tubes 302 whose number is equal to that of the fertilizer tubes 401. One end of the air guide tube 302 extends into the interior of the fertilizer tube 401. The end of the air guide tube 302 extending into the interior of the fertilizer tube 401 is fixedly connected to a trumpet tube 303.

[0045] Specifically, by connecting the moving part of the device with an agricultural machine, the agricultural machine can drive the device to move in the field where crops are planted. After the fertilizer is loaded into the fertilizer bin 100, the quantitative conveying component will transport the fertilizer to the inside of several groups of fertilizer troughs 403 respectively, and then the fertilization part will arrange the fertilizer according to volume size and prepare for fertilization. The power part intermittently provides high-pressure gas to act on the fertilizer that is ready for fertilization, and finally the fertilizer is injected into the soil at a certain speed to complete the fertilization.

[0046] like Figure 1 As shown, a sealing cover 101 is provided on the upper portion of the fertilizer bin 100 to seal the inner cavity of the fertilizer bin 100 .

[0047] like Figure 1-5 As shown, the quantitative conveying assembly includes a partition 104, a transmission shaft 106 and a plurality of groups of fixed seats 102 arranged at intervals, the plurality of groups of fixed seats 102 are fixedly connected to the upper end surface of the partition 104, the partition 104 is provided with a plurality of groups of guide grooves 105 on the side facing the fertilizer stratification box 400, and the transmission shaft 106 is fixedly connected to a plurality of groups of uniformly distributed disks 103 on the outside.

[0048] The fixing seat 102 , the evenly distributing plate 103 and the partition 104 will block the bottom of the fertilizer bin 100 , and the fertilizer will be stored above the fixing seat 102 , the evenly distributing plate 103 and the partition 104 .

[0049] Furthermore, several groups of uniform distribution disks 103 are respectively arranged in the gaps of several groups of fixing seats 102 , several groups of guide grooves 105 correspond to the positions of several groups of uniform distribution disks 103 , and several groups of material containing grooves are opened outside the uniform distribution disks 103 .

[0050] Furthermore, main shafts are installed on both sides of the connecting frame 201, and a traveling wheel 200 is installed on the end of the main shaft away from the connecting frame 201. One end of the transmission shaft 106 extends to the outside of the fertilizer bin 100, and a rotating disk 1 is installed on the outside of the extended end of the transmission shaft 106. A rotating disk 2 is installed on the outside of the main shaft on the same side of the extended end of the transmission shaft 106, and a belt is installed between the rotating disks 1 and 2.

[0051] Specifically, the fertilizer can enter the interior of the material storage tank. When the fertilizing device is moving, the drive shaft 106 and the uniform distribution disk 103 will rotate through the transmission of the belt, so that the fertilizer in the material storage tank will enter the interior of the guide groove 105 and then enter the interior of the fertilizer layering box 400.

[0052] like Figure 6-8 As shown, the outside of the fertilizer pipe 401 is fixedly connected to a fixed plate 402, the bottom of the fixed plate 402 is rotatably connected to a balance rod 406, one end of the balance rod 406 is fixedly connected to a gasket cover 404, the upper end surface of the gasket cover 404 is in contact with the bottom of the fertilizer pipe 401, and the other end of the balance rod 406 is fixedly connected to a counterweight block 405.

[0053] Specifically, the weight of the counterweight 405 is sufficient so that when the fertilizer falls onto the pad cover 404 , the pad cover 404 will not separate from the bottom of the fertilizer pipe 401 .

[0054] It can be understood that by adjusting the weight of the counterweight 405, the resistance when the fertilizer is flushed out can be effectively reduced.

[0055] Furthermore, a feeding trough 408 is provided on the side of the fixing seat 409 facing away from the fertilizer pipe 401, and the two sides of the feeding trough 408 are respectively connected to the fertilizer pipe 401 and the layering trough 407.

[0056] Furthermore, the bottom of the layering groove 407 is an inclined surface, and the spacing between the layering grooves 407 gradually decreases along the vertical direction.

[0057] Specifically, after entering the fertilizer stratification box 400 , the fertilizer will fall into the stratification groove 407 , and the fertilizer entering the stratification groove 407 will be arranged according to the volume during movement.

[0058] Among them, Figure 7 As shown, along the direction of fertilizer movement, the depth of the stratification groove 407 will gradually increase, so that fertilizers of different sizes have different slopes when moving in the stratification groove 407, and after entering the fertilizer pipe 401, the fertilizer with the largest volume is at the top.

[0059] Furthermore, the trumpet tube 303 is trumpet-shaped, and the side with a larger inner diameter of the trumpet tube 303 is fixedly connected to the inner wall of the fertilizer tube 401 .

[0060] The present embodiment also provides a method for applying solid fertilizer to crops, which uses the above-mentioned solid fertilizer application device for crops, including putting the mixed solid fertilizer into the fertilizer bin 100, connecting the fertilizer application device to the agricultural machine through the connecting frame 201, and driving the traveling wheel 200 to rotate when the fertilizer application device moves, and the transmission shaft 106 rotates through the belt, so that the uniform distribution disk 103 rotates, and the fertilizer inside the fertilizer bin 100 enters the inside of the material storage tank, and the fertilizer inside the material storage tank falls into the inside of the guide groove 105, and then passes through The guide groove 105 enters the stratification groove 407, and the fertilizer is arranged in the stratification groove 407 according to the volume, and then enters the fertilizer pipe 401 through the feed groove 408. At this time, the large fertilizer is on the top, and the air pump 300 intermittently pumps high-pressure gas into the gas transmission main pipe 301. The high-pressure gas acts on the fertilizer in the fertilizer pipe 401 through the air guide pipe 302 and the trumpet tube 303. The fertilizer accelerated by the high-pressure gas will push the pad cover 404 and shoot into the soil that needs to be fertilized, completing the fertilization operation.

[0061] The fertilization device provided by the present invention is provided with a fertilization bin 100, wherein a quantitative conveying assembly is provided inside the fertilization bin 100, and the fertilizer can be quantitatively conveyed to the inside of the fertilizer trough 403 through the quantitative conveying assembly, and the fertilizer will fall into the stratification trough 407 after entering the fertilizer trough 403, and then be arranged according to the volume during the movement, and then enter the inside of the fertilizer pipe 401 through the feed trough 408, and then the high-pressure gas applied by the power unit allows the fertilizer to be directly injected into the soil to complete the fertilization operation, thereby effectively improving the fertilization efficiency and fertilization uniformity;

[0062] At the same time, along the movement direction of the fertilizer, the depth of the stratification groove 407 gradually increases, so that fertilizers of different sizes move at different slopes in the stratification groove 407, and then after entering the fertilizer tube 401, the fertilizer with the largest volume is at the top, so that the fertilizer can be better flushed out by the high-pressure gas;

[0063] In addition, the two ends of the balance bar 406 are respectively fixedly connected with a counterweight block 405 and a cushion cover 404. By adjusting the weight of the counterweight block 405, the resistance when the fertilizer is flushed out can be effectively reduced.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid fertilizer fertilizing device for crops, characterized in that: include: A fertilizer section, provided with a fertilizer bin (100) for storing fertilizer, and a quantitative conveying component for conveying fertilizer is provided at the bottom of the inner cavity of the fertilizer bin (100); A traveling portion is arranged below the fertilizer portion, the traveling portion comprising a connecting frame (201), the connecting frame (201) being connectable to an agricultural machine so that the fertilizing device moves with the agricultural machine; A fertilizing section, comprising a fertilizer layering box (400) mounted on one side of the fertilizing bin (100), wherein a plurality of groups of fertilizer troughs (403) are provided inside the fertilizer layering box (400), wherein a layering trough (407) is provided at the bottom of the fertilizer trough (403), wherein the layering trough (407) can transport fertilizer in layers according to volume, wherein the fertilizer trough (403) is fixedly connected to a side of the fertilizer trough (403) away from the fertilizing bin (100) with a number of fixing seats (409) equal to the number of the fertilizer troughs (403), and wherein a fertilizing pipe (401) is fixedly connected to a side of the fixing seat (409) away from the fertilizer trough (403); The power unit is arranged in the fertilizing unit, and comprises an air pump (300). The output end of the air pump (300) is fixedly connected to a gas main pipe (301). The gas main pipe (301) is provided with air guide pipes (302) equal in number to the fertilizing pipes (401) outside. One end of the air guide pipe (302) extends into the fertilizing pipe (401). One end of the air guide pipe (302) extending into the fertilizing pipe (401) is fixedly connected to a trumpet pipe (303).

2. A solid fertilizer fertilizing device for crops according to claim 1, characterized in that: The quantitative conveying assembly comprises a partition (104), a transmission shaft (106) and a plurality of groups of fixed seats (102) arranged at intervals, wherein the plurality of groups of fixed seats (102) are fixedly connected to the upper end surface of the partition (104), the partition (104) is provided with a plurality of groups of guide grooves (105) on the side facing the fertilizer stratification box (400), and the transmission shaft (106) is fixedly connected to the outside with a plurality of groups of uniform distribution disks (103).

3. A solid fertilizer fertilizing device for crops according to claim 2, characterized in that: The plurality of groups of uniform distribution disks (103) are respectively arranged in the gaps between the plurality of groups of fixed seats (102); the plurality of groups of guide grooves (105) correspond to the positions of the plurality of groups of uniform distribution disks (103); and the exterior of the uniform distribution disks (103) is provided with a plurality of groups of material containing grooves.

4. The solid fertilizer fertilizing device for crops according to claim 2, characterized in that: Main shafts are installed on both sides of the connecting frame (201); a traveling wheel (200) is installed on one end of the main shaft away from the connecting frame (201); one end of the transmission shaft (106) extends to the outside of the fertilizer bin (100); a rotating disk 1 is installed on the outside of the extended end of the transmission shaft (106); a rotating disk 2 is installed on the outside of the main shaft on the same side as the extended end of the transmission shaft (106); and a belt is installed between the rotating disk 1 and the rotating disk 2.

5. The solid fertilizer fertilizing device for crops according to claim 1, characterized in that: The fertilizer pipe (401) is fixedly connected to a fixing plate (402) on the outside, and a balancing rod (406) is rotatably connected to the bottom of the fixing plate (402). One end of the balancing rod (406) is fixedly connected to a gasket (404), and the upper end surface of the gasket (404) contacts the bottom of the fertilizer pipe (401). The other end of the balancing rod (406) is fixedly connected to a counterweight (405).

6. A solid fertilizer fertilizing device for crops according to claim 5, characterized in that: A feeding trough (408) is provided on the side of the fixing seat (409) facing away from the fertilizer pipe (401), and the two sides of the feeding trough (408) are respectively connected to the fertilizer pipe (401) and the layering trough (407).

7. The solid fertilizer fertilizing device for crops according to claim 1, characterized in that: The bottom of the layering groove (407) is an inclined surface, and the spacing of the layering grooves (407) gradually decreases along the vertical direction.

8. The solid fertilizer fertilizing device for crops according to claim 1, characterized in that: The trumpet tube (303) is trumpet-shaped, and the side of the trumpet tube (303) with a larger inner diameter is fixedly connected to the inner wall of the fertilizer tube (401).

9. A method for applying solid fertilizer to crops, using the solid fertilizer applying device for crops according to any one of claims 1 to 8, characterized in that: The method comprises placing mixed solid fertilizer into a fertilizer bin (100), connecting a fertilizer device to an agricultural machine via a connecting frame (201), driving a traveling wheel (200) to rotate when the fertilizer device moves, and rotating a transmission shaft (106) via a belt, thereby rotating a uniform distribution disk (103), and the fertilizer in the fertilizer bin (100) enters a material storage tank, and the fertilizer in the material storage tank falls into a guide groove (105), and then enters a layering groove (407) via the guide groove (105), and the fertilizer is The fertilizers are arranged in the stratification groove (407) according to their volume, and then enter the fertilizer pipe (401) through the feeding groove (408). At this time, the fertilizers with large volume are at the top. The air pump (300) intermittently pumps high-pressure gas into the gas transmission main pipe (301). The high-pressure gas acts on the fertilizers in the fertilizer pipe (401) through the air guide pipe (302) and the trumpet pipe (303). The fertilizers accelerated by the high-pressure gas push open the pad cover (404) and are injected into the soil to be fertilized, thereby completing the fertilization operation.

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