Seed sowing method and full-width uniform sowing method and device

Abstract

The invention discloses a sowing method and a full-width uniform sowing method and device, and relates to the technical field of sowing, the technical scheme comprises the following steps: constructing a strip-shaped sowing shell structure, the lower part of the sowing shell is a seed discharge port, and the two ends of the sowing shell in the length direction are seed inlets; the outlet end of the seeding device is connected with a seed conveying pipeline, air flow is introduced into the seed conveying pipeline, and the seeds are pushed into seed inlets in the two ends of the seeding shell by means of flowing of the air flow; seeds entering the sowing shell fall down in the length direction of the sowing shell and are discharged from the seed discharging opening. The seed sowing method has the beneficial effects that full-width uniform sowing of crop seeds can be realized, and by performing full-width uniform sowing in a planting area, the seed sowing method has obvious advantages in the aspects of improving the photosynthetic efficiency, the water utilization efficiency, the disease and pest resistance, the overall yield and the overall quality.

Description

Technical Field

[0001] The invention relates to the technical field of sowing, and in particular to a sowing method and a full-width uniform sowing method and device. Background Art

[0002] With the development of agricultural technology, the sowing methods are mainly row sowing and broadcast sowing. Different crops have their own preferred sowing methods. As for wheat sowing, especially in saline-alkali land in coastal areas, experiments have shown that broadcast sowing is more suitable for this type of land.

[0003] As for the broadcasting method, it is different from the row sowing equipment. Broadcasting has higher requirements for the uniformity of wheat seed laying. It needs to satisfy the requirement that the wheat seeds can be evenly spread in a larger sowing range, and mechanized operation is more difficult. For example, the previously applied CN114303534A disclosed technology - a deep fertilization secondary suppression full-width uniform seeder and sowing method, and CN114503815A disclosed technology - a secondary suppression full-width precision seeder and sowing method, both of which are broadcasting sowing equipment. However, after actual use in recent years, it was found that both have certain shortcomings.

[0004] As the first generation of equipment, the deep fertilization secondary suppression full-width uniform seeder adopts a combination of precision sowing components and spreading components. The precision sowing component uses a sowing structure similar to that of a drill to achieve sowing in strip areas, and the spreading components set between the precision sowing components achieve ground seed spreading between adjacent strip areas. Although this method can meet the overall ground spreading, there is a large difference in the density of sowing in the precision sowing area and the spreading area, and some seeds are difficult to germinate, resulting in seed waste.

[0005] The secondary suppression full-width precision seeder of the later improved equipment is different from the former. It uses two sets of staggered precision seeders to achieve the function of full-width uniform sowing. Although it can also meet the uniform sowing of large areas, the sowing component of this equipment is still based on the sowing form of row sowing, and there is still uneven seed density, which will also lead to seed waste and fail to achieve a more ideal spreading effect. Summary of the invention

[0006] In view of one of the deficiencies of the prior art, the present invention provides a sowing method and a full-width uniform sowing method and device to solve the technical problem of how to achieve full-width uniform sowing during sowing.

[0007] To achieve the above object, the present invention provides the following technical solution: a sowing method, characterized in that it comprises the steps of:

[0008] S1. Construct a long strip sowing shell structure, wherein the lower part of the sowing shell is a seed discharge port, and both ends in the length direction are seed inlets; the forward direction during sowing is a, and the length direction of the sowing shell is b, and a and b are not parallel;

[0009] S2, connecting the outlet end of the seeding device to the seed conveying pipeline, introducing airflow into the seed conveying pipeline, and pushing the seeds into the seed inlets at both ends of the seeding shell by means of the flow of the airflow, and the seeds enter the seeding shell from the seed inlets of the seeding shell;

[0010] S3. The seeds entering the sowing shell are distributed and fall in the length direction of the sowing shell and are discharged from the seed discharging port.

[0011] Preferably, the step S3 comprises:

[0012] S301, a plurality of seed placement positions are arranged inside the seed sowing shell, and the seed placement positions are distributed along the length direction of the seed sowing shell;

[0013] S302, the seeds entering the sowing shell move along the length direction of the sowing shell, and when the seeds move to the sowing position, the moving direction is changed from the sowing position to move toward the seed discharge port.

[0014] Preferably, in step S301, the seed placement positions are evenly distributed from both ends of the seed sowing shell to the middle area;

[0015] The step S3 further comprises:

[0016] S303, guiding the seeds blown out from the seed placement position to the seed discharging port; the method for guiding the seeds is to set a plurality of guide members in the area from the seed placement position to the middle position of the seed sowing shell, the guide members are distributed along the length direction of the seed sowing shell, and the guide members are distributed in a wave shape;

[0017] The maximum diameter of the seed is d1, the width of the guide is d2, and d2 is less than or equal to 3d1.

[0018] A full-width uniform sowing method comprises the following steps:

[0019] A1. Rotary tillage the ground;

[0020] A2, sowing seeds using the sowing method described above;

[0021] A3. Cover and compact the area after sowing.

[0022] Preferably, the method of rotary tilling the ground in step A1 is specifically as follows:

[0023] A101, with the sowing direction as a, direction a being the front, performing a first rotary tillage operation along direction a, wherein the rotary tillage blade during the first rotary tillage operation rotates from top to bottom toward direction a;

[0024] A102. Perform a second rotary tillage operation after the first rotary tillage operation, and the rotation direction of the rotary tillage blade during the second rotary tillage operation is opposite to the rotation direction of the rotary tillage blade during the first rotary tillage operation.

[0025] Preferably, in step A3, the area after sowing is covered with soil and compacted by:

[0026] A301. During the second rotary tillage operation, the rotary tillage blade is used to move the rotary tilled soil to above the sowing shell;

[0027] A302, transport the soil lifted up by A301 to the rear of the sowing shell, and make it fall to the ground;

[0028] A303. Suppress the ground after the soil falls from A302.

[0029] A sowing device, used in the above-mentioned sowing method, comprising:

[0030] The rotary tillage mechanism can perform rotary tillage on the ground, including:

[0031] The first rotary tilling unit comprises a first rotary tilling shaft, on which a first rotary tilling blade group is arranged;

[0032] The second rotary tilling unit is arranged at the rear side of the first rotary tilling unit and is arranged adjacent to the first rotary tilling unit. The second rotary tilling unit comprises a second rotary tilling shaft, on which a second rotary tilling blade group is arranged. The rotation direction of the second rotary tilling shaft is opposite to that of the first rotary tilling shaft.

[0033] A sowing mechanism, applied to the sowing method as described above, comprising:

[0034] The sowing shell is a long strip structure with a hollow interior. A seed discharge port is provided at the bottom of the sowing shell, through which seeds can be discharged.

[0035] A sowing tube group, comprising a plurality of sowing tubes arranged inside the sowing shell;

[0036] The inlet end of the sowing tube is connected to the seed supply mechanism through the seed delivery pipeline, and the seed supply mechanism is an air flow delivery mechanism; the outlet end of the sowing tube in the sowing tube group is distributed above the seed discharge port of the sowing shell;

[0037] The soil covering mechanism is arranged at the rear side of the second rotary tillage unit, and the soil covering and conveying unit can convey the soil turned up by the second rotary tillage unit to the rear.

[0038] Compared with the existing technology, this scheme has the following beneficial effects: the sowing method of this scheme can realize full-width uniform sowing of crop seeds. By carrying out full-width uniform sowing in the planting area, it has obvious advantages in improving photosynthetic efficiency, water use efficiency, disease and pest resistance, and overall yield and quality.

[0039] On this basis, this scheme also proposes a corresponding sowing method and sowing device in combination with the sowing method, which can further ensure the implementation of the sowing method and obtain an excellent full-width uniform sowing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The overall structure of the embodiment of the present application is shown in FIG. Figure 1 ;

[0041] Figure 2 The overall structure of the embodiment of the present application is shown in FIG. Figure 2 ;

[0042] Figure 3 The overall structure of the embodiment of the present application is shown in FIG. Figure 3 ;

[0043] Figure 4 The overall structure of the embodiment of the present application is shown in FIG. Figure 4 ;

[0044] Figure 5 This is a schematic diagram of the structure of the first rotary tillage unit in an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram of the structure of the second rotary tillage unit in an embodiment of the present application;

[0046] Figure 7 The structure of the sowing mechanism of the present application is shown in FIG. Figure 1 ;

[0047] Figure 8 The structure of the sowing mechanism of the present application is shown in FIG. Figure 2 ;

[0048] Fig. 9 for Figure 8 A partial enlarged view of;

[0049] Fig.10 A bottom view of an embodiment of the present application;

[0050] Fig.11 for Fig.10 AA section view;

[0051] Fig.12 The state of the hidden sowing shell of the embodiment of the present application is shown as follows Figure 1

[0052] Fig.13The state of the hidden sowing shell of the embodiment of the present application is shown as follows Figure 2 ;

[0053] Fig.14 This is a front view of the hidden sowing shell state of the embodiment of the present application;

[0054] Fig.15 The structure of the guide plate and guide rod of the embodiment of the present application is shown in FIG. Figure 1 ;

[0055] Fig.16 The structure of the guide plate and guide rod of the embodiment of the present application is shown in FIG. Figure 2 ;

[0056] Fig.17 A schematic diagram of the conveyor belt structure of an embodiment of the present application;

[0057] Fig.18 This is a schematic diagram of the hidden conveyor belt state of an embodiment of the present application;

[0058] Fig.19 This is a root system scanning comparison diagram of an embodiment of the present application;

[0059] Fig. 20 This is a comparison chart of wheat canopy reflectance in an embodiment of the present application;

[0060] Fig.21 It is a uniformly broadcast infrared thermal imaging image of an embodiment of the present application;

[0061] Fig. 22 This is an infrared thermal imaging image of the strip sowing embodiment of the present application.

[0062] In the figure:

[0063] 100. seed supply mechanism; 200. frame;

[0064] 1. Rotary tillage mechanism; 11. First rotary tillage unit; 111. First rotary tillage shaft; 112. First rotary tillage blade; 12. Second rotary tillage unit; 121. Second rotary tillage shaft; 122. Second rotary tillage blade; 13. Rotary tillage linkage unit;

[0065] 2. sowing mechanism; 21. sowing shell; 211. seeding port; 22. sowing tube group; 221. sowing tube; 23. flow guide assembly; 231. flow guide plate; 232. flow guide rod;

[0066] 3. Soil covering mechanism; 31. Conveying shaft; 311. Conveying shaft rod; 312. Card slot; 32. Conveying belt; 321. Belt body; 322. Card strip;

[0067] 4. Suppression mechanism; 41. Suppression roller; 42. Suppression frame; 43. Suppression adjustment component; 44. Cleaning piece. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] This application provides the following technical solutions:

[0070] A sowing method comprises the steps of:

[0071] S1. Construct a long strip-shaped seeding shell structure, the lower part of the seeding shell is the seed discharge port, and the two ends in the length direction are seed inlets; the forward direction during seeding is a, and the length direction of the seeding shell is b, and a and b are perpendicular; in other words, the seeding direction a is the longitudinal direction, and the length direction of the seeding shell is the transverse direction.

[0072] S2. Connect the outlet end of the seed dropper to the seed delivery pipeline, introduce airflow into the seed delivery pipeline, and push the seeds to the seed inlets at both ends of the seed sowing shell with the help of the flow of airflow. The seeds enter the seed sowing shell from the seed inlet of the seed sowing shell.

[0073] S3, the seeds entering the sowing shell are distributed and fall in the length direction of the sowing shell and discharged from the seed discharging port. Step S3 can be specifically divided into the following steps:

[0074] S301, a plurality of seed placement positions are arranged inside the seeding shell, the seed placement positions are distributed along the length direction of the seeding shell, and the seed placement positions are evenly distributed from both ends of the seeding shell to the middle area;

[0075] S302, the seeds entering the sowing shell move along the length direction of the sowing shell, and when the seeds move to the sowing position, the moving direction is changed from the sowing position to move toward the seed discharge port;

[0076] S303, guiding the seeds blown out from the seed placement position to the seed discharge port; the method for guiding the seeds is to set a plurality of guide pieces in the area from the seed placement position to the middle of the seed sowing shell, the guide pieces are distributed along the length direction of the seed sowing shell, and the guide pieces are distributed in a wave shape; the maximum diameter of the seed is d1, the width of the guide piece is d2, and d2 is approximately equal to 1.5d1.

[0077] This solution uses airflow as the driving force to transport seeds, and combines the sowing shell perpendicular to the sowing direction as the seed transport channel. The seeds are discharged and dropped at the seed drop positions evenly distributed in the sowing shell, which is more conducive to the seed scattering. On this basis, the seeds flying out of the seed drop positions are guided by the guide piece, and the seeds are directly blocked by the guide piece to make them fall, which can solve the problem of uneven seed drop points caused by the gradual weakening of the airflow, making the seeds scattered more evenly, and maintaining a uniform sowing effect within the sowing range involved in the entire sowing shell.

[0078] On the basis of the above implementation scheme, this scheme also provides a full-width uniform sowing method, comprising the steps of:

[0079] A1. Rotary tillage the ground; the rotary tillage includes the following steps:

[0080] A101, with the sowing direction as a, direction a being the front, performing a first rotary tillage operation along direction a, wherein the rotary tillage blade during the first rotary tillage operation rotates from top to bottom toward direction a;

[0081] A102. Perform a second rotary tillage operation after the first rotary tillage operation, and the rotation direction of the rotary tillage blade during the second rotary tillage operation is opposite to the rotation direction of the rotary tillage blade during the first rotary tillage operation.

[0082] A2, adopt the sowing method of the above scheme to sow seeds.

[0083] A3. Cover and compact the area after sowing. The specific methods of covering and compacting are as follows:

[0084] A301. During the second rotary tillage operation, the rotary tillage blade is used to move the rotary tilled soil to above the sowing shell;

[0085] A302, transport the soil lifted up by A301 to the rear of the sowing shell, and make it fall to the ground;

[0086] A303. Suppress the ground after the soil falls from A302.

[0087] By using the method of this scheme, when rotary tillage is performed, the soil turned up by the second rotary tillage operation is thrown to the top of the sowing shell by the rotary tiller and then transported to the rear, so it will not affect the process of seeds falling in step A2. In other words, the soil particles thrown by the rotary tillage work have very little contact with the seeds falling from the sowing shell, and the seeds can fall directly on the ground under the action of the aforementioned sowing method. This ensures the effect of cloud seeding. As the sowing operation proceeds, the soil thrown to the rear by the rotary tiller will cover the seeds that fall to the ground, thereby completing the soil covering, and then it can be suppressed.

[0088] After testing, this method uses full-width uniform sowing for sowing, which is different from traditional strip sowing and has obvious advantages in improving photosynthetic efficiency, water use efficiency, pest and disease resistance, and overall yield and quality. Although uniform sowing has higher initial investment and management complexity, its long-term benefits and environmental benefits are significantly better.

[0089] Based on the above implementation scheme, see Figures 1 to 4 The present solution also proposes a sowing device, which is applied to the aforementioned sowing method and sowing method. With the forward direction during sowing as the front, that is, direction a as the front, the present device includes a rotary tillage mechanism 1, a sowing mechanism 2, a soil covering mechanism 3 and a suppression mechanism 4 arranged in sequence from front to back. When the present device is working, it can be towed by a traction device such as a tractor. The above mechanisms are all arranged on a frame 200, and the rotary tillage mechanism 1 includes a first rotary tillage unit 11 and a second rotary tillage unit 12 that can perform rotary tillage on the ground. The soil covering mechanism 3 is arranged at the rear side of the second rotary tillage unit 12. The sowing mechanism 2 is located below the soil covering mechanism 3. The soil covering mechanism 3 can transport the soil turned up by the second rotary tillage unit 12 to the rear. The suppression mechanism 4 is arranged at the rear side of the soil covering mechanism 3, and the suppression mechanism 4 includes a suppression roller 41, and the soil can be suppressed by the suppression roller 41. A seed supply mechanism 100 is also arranged on the frame 200, and the seed supply mechanism 100 can be used with an existing seeding device. The sowing mechanism 2 is applied to the aforementioned sowing method, and the sowing device as a whole is applied to the aforementioned sowing method.

[0090] On the basis of the above implementation scheme, the first rotary tilling unit 11 in the rotary tilling mechanism 1 includes a first rotary tilling shaft 111, and a first rotary tilling blade group is arranged on the first rotary tilling shaft 111. The second rotary tilling unit 12 is arranged at the rear side of the first rotary tilling unit 11, and is arranged adjacent to the first rotary tilling unit 11. The second rotary tilling unit 12 includes a second rotary tilling shaft 121, and a second rotary tilling blade group is arranged on the second rotary tilling shaft 121. The first rotary tilling shaft 111 and the second rotary tilling shaft 121 are both rotatably connected to the frame 200. The first rotary tilling shaft 111 and the second rotary tilling shaft 121 are linked through the rotary tilling linkage unit 13, and the power input end of the rotary tilling linkage unit 13 is linked with the power source, and the power output end thereof drives the first rotary tilling shaft 111 and the second rotary tilling shaft 121 to rotate. The power source can be selected from the output power source of the traction vehicle, or an independent power source can be configured.

[0091] The specific linkage structure of the rotary tillage linkage unit 13 can adopt the existing technical solutions, such as gear transmission, belt transmission, chain transmission, etc., and chain transmission is preferred. The rotary tillage linkage unit 13 only needs to drive the first rotary tillage shaft 111 to rotate forward and the second rotary tillage shaft 121 to rotate backward during operation. For the convenience of a clearer description, when moving in direction a, that is, when moving forward, the rolling direction of the traction vehicle wheel is a1. During the rotary tillage operation, the rotation direction of the first rotary tillage shaft 111 is the same as a1; the rotation direction of the second rotary tillage shaft 121 is opposite to a1. Through this driving direction, the first rotary tillage shaft 111 rotates toward the front, so that the first rotary tillage unit 11 will turn the soil backward and lift it up, and the second rotary tillage shaft 121 rotates toward the rear, and the soil turned up by the first rotary tillage unit 11 is thrown obliquely backward and upward, so that the soil can pass over the sowing mechanism 2 from above and then fall onto the covering mechanism 3.

[0092] Through the structure of this solution, the first rotary tillage unit 11 and the second rotary tillage unit 12 are used to perform rotary tillage operations to break up the land, and then the soil raised by the second rotary tillage unit 12 is transported to the rear by the soil covering mechanism 3. With this structure, the sowing mechanism 2 is arranged within the shielding range of the soil covering mechanism 3, and the soil is guided and transported by the soil covering mechanism 3, so that the soil raised during the rotary tillage operation avoids the seeds sown by the sowing mechanism 2, thereby effectively avoiding the problem that the soil thrown up during the rotary tillage operation affects the falling position of the seeds, so as to better ensure that the seeds fall within the sowing range designed by the device, so as to ensure the sowing effect of full-width uniform sowing.

[0093] Based on the above implementation scheme, see Figure 5 The first rotary tiller blade group includes a first rotary tiller blade 112 arranged around the first rotary tiller shaft 111. One end of the first rotary tiller blade 112 is fixedly connected to the first rotary tiller shaft 111, and the other end extends in a direction away from the first rotary tiller shaft 111. The end of the first rotary tiller blade 112 away from the first rotary tiller shaft 111 is a bent structure, that is, the first rotary tiller blade 112 presents a structure similar to a "7" shape. The first rotary tiller blades 112 of the first rotary tiller blade group are spirally distributed on the circumference of the first rotary tiller shaft 111.

[0094] Through this solution, with the help of the first rotary tiller blade 112 with a bending structure, the crushing effect of the soil can be improved when the first rotary tiller shaft 111 rotates, and basic rotary tillage operations can be achieved. By distributing the first rotary tiller blades 112 in a spiral distribution, the first rotary tiller blades 112 in the entire first rotary tiller blade group can contact the ground at different rotation angles of the first rotary tiller shaft 111, effectively reducing the load on the equipment.

[0095] On the basis of the above implementation scheme, the first rotary tiller blade group includes a plurality of rotary tiller blade groups, and the rotary tiller blade groups are arranged in a spiral shape. Each rotary tiller blade group includes two first rotary tillers 112, and the bending directions of the end bending structures of the two first rotary tillers 112 of the same rotary tiller blade group are opposite; Figure 5 As shown, the bending direction here refers to two situations, one of which is the case in the attached Figure 5 As shown, the two first rotary tillers 112 in the same rotary tiller group have their bent parts arranged opposite to each other. Another solution can also be opposite to this solution, that is, the two first rotary tillers 112 in the same rotary tiller group have their bent parts arranged opposite to each other. Both methods are acceptable, but in actual use, due to different surface conditions, according to experiments, especially when applied to land conditions with more serious saline-alkali soil hardening, the solution of the two first rotary tillers 112 in the rotary tiller group used in this solution having the bent parts arranged opposite to each other has a better soil crushing effect and a longer service life.

[0096] Based on the above implementation scheme, see Figure 6 The second rotary tiller blade group includes a second rotary tiller blade 122 arranged around the second rotary tiller shaft 121. One end of the second rotary tiller blade 122 is fixedly connected to the second rotary tiller shaft 121, and the other end extends in a direction away from the second rotary tiller shaft 121. Different from the first rotary tiller blade 112, the blade of the second rotary tiller blade 122 is a straight plate structure; the second rotary tiller blade 122 of the second rotary tiller blade group is spirally distributed around the second rotary tiller shaft 121.

[0097] The second rotary tilling unit 12 is a subsequent working unit of the first rotary tilling unit 11, and it can perform secondary crushing on the soil crushed by the first rotary tilling unit 11. Due to the structural limitations of the equipment, it is most reasonable to design the first rotary tilling shaft 111 and the second rotary tilling shaft 121 to be of equal length. Therefore, a blade setting form different from the first rotary tilling blade 112 is adopted, and a straight-plate-shaped second rotary tilling blade 122 is set on the second rotary tilling shaft 121, so that the second rotary tilling unit 12 and the first rotary tilling unit 11 can produce different rotary tillage crushing effects in different spacings, pitches, etc. on the same length of the shaft, thereby further enhancing the rotary tillage effect of the first rotary tilling unit 11.

[0098] On the basis of the above implementation scheme, the blade body of the second rotary tiller 122 is tilted. Through the tilted blade body, the second rotary tiller unit 12 is given another function in addition to soil crushing, that is, the function of guiding the soil to be moved. As mentioned above, the present solution further provides a soil covering mechanism 3. With the help of the tilted second rotary tiller 122, under the action of the rotation of the second rotary tiller shaft 121, the second rotary tiller 122 can throw the soil onto the soil covering mechanism 3, and the soil covering mechanism 3 further transports it backward.

[0099] On the basis of the above implementation scheme, there are also multiple ways to tilt the second rotary tiller blade 122, which only need to meet the requirements of the above solution. This solution proposes a specific setting method that meets the following two points.

[0100] 1. Taking the midline of the length direction of the second rotary tiller 122 as L, the extension line of the line L may intersect with the axis of the second rotary tiller shaft 121 , that is, the second rotary tiller 122 may extend along the radial direction of the second rotary tiller shaft 121 .

[0101] Second, the angle between the extended surface of the blade of the second rotary tiller 122 and the axis of the second rotary tiller shaft 121 is 30°-60°, preferably 45°. It can also be understood here that, taking any of the second rotary tillers 122 as a reference, the blade is vertically projected toward the second rotary tiller shaft 121. Because the second rotary tiller 122 is blade-shaped, the projection is regarded as a straight line, and the angle formed by the straight line and the axis of the second rotary tiller shaft 121, the acute angle of which is 45°.

[0102] That is Figure 6 As shown in the state, the second rotary tiller 122 of this scheme can be set to achieve both soil crushing and soil transportation effects, which is a preferred structural form.

[0103] On the basis of the above implementation scheme, two first rotary tilling blade groups are arranged on the first rotary tilling shaft 111, and the two first rotary tilling blade groups are arranged in mirror symmetry with the middle section of the first rotary tilling shaft 111 as the symmetry plane. Similar to the form of the first rotary tilling unit 11, two second rotary tilling blade groups are arranged on the second rotary tilling shaft 121, and the two second rotary tilling blade groups are arranged in mirror symmetry with the middle section of the second rotary tilling shaft 121 as the symmetry plane.

[0104] In other words, the two first rotary tiller blade groups on the first rotary tiller shaft 111 have opposite spiral directions, and similarly, the bolt directions of the two second rotary tiller blade groups on the second rotary tiller shaft 121 are also opposite. With such a configuration, the force on the shaft of the rotary tiller shaft during operation can be well dispersed, and the force on the shaft can be evenly dispersed to the two halves of the shaft, which can increase the stability of the two rotary tiller shafts during operation and extend the service life of the equipment.

[0105] On the basis of the above-mentioned implementation scheme, the sowing mechanism 2 of this scheme is applied to the above-mentioned sowing method, see Figures 7 to 14The sowing mechanism 2 includes a long strip sowing shell 21, the interior of the sowing shell 21 is a cavity, and the lower part is an open mouth, which is a seed discharge port 211. When sowing, the seeds fall and are discharged from the seed discharge port 211. A sowing tube group 22 is arranged in the sowing shell 21, and the sowing tube group 22 includes a plurality of sowing tubes 221. The inlet end of the sowing tube 221 is connected to the seed supply mechanism 100 through a seed conveying pipeline. The seed supply mechanism 100 includes a seeding device, and the outlet end of the seeding device is connected to the seed conveying pipeline. Each seed conveying pipeline is connected to a sowing tube 221. Airflow is introduced into the seed conveying pipeline, and the seeds are delivered in the form of airflow conveying. The seeds are blown into the sowing tube 221 by the airflow, and the seeds pass through the tube body of the sowing tube 221 under the action of the airflow and fall out from the outlet end of the sowing tube 221. The outlet ends of the sowing tubes 221 in the sowing tube group 22 are evenly distributed above the seed discharge opening 211 of the sowing shell 21 .

[0106] Through the structure of this solution, an integral air duct structure is formed with the help of the sowing shell 21, and at the same time, an independent seed conveying pipeline is configured for each sowing tube 221, and the seed conveying pipeline is connected to the sowing device, and the seeds are sent to each sowing tube 221 with the help of the power of the airflow. Combined with the characteristics of airflow conveying, the seeds are blown out from the outlet end of the sowing tube 221 and scattered downward in a parabolic shape, and fall out of the seed discharge port 211 to the ground. Because the outlet ends of the sowing tubes 221 are distributed at different positions, uniform sowing over a large area can be achieved. There will be no problem of concentrated sowing in a local sowing area similar to a drill sowing machine, while there will be no seeds around the sowing area.

[0107] Based on the above implementation, the lengths of the sowing tubes 221 in the sowing tube group 22 are different, the outlet end of the sowing tube 221 is opened in the horizontal direction, and the inlet end of the sowing tube 221 extends to one end of the length direction of the sowing shell 21. The forward direction of the entire device during sowing is the longitudinal direction, and the length direction of the sowing tube 221 is the transverse direction.

[0108] Different from the conventional seeding structure, the seeding direction adopted by the seeding tube 221 of this scheme is horizontal. Fig.12 As shown, when the seeds are discharged from the sowing tube 221, their movement direction is horizontal. In conventional sowing equipment, the discharge direction of the seed conveying pipeline is the vertical falling direction, or in other words, the discharge direction of the seeds is basically the same as the sowing direction. However, because the present solution adopts the form of airflow seed delivery, the seeds are blown out of the sowing tube 221 by the airflow, and when they leave the nozzle of the sowing tube 221, they perform a parabolic movement. Since the weight of the seeds themselves may not be completely consistent, this form is more conducive to the dispersion of the seeds. In this way, combined with the distributed structure formed by the outlet ends of multiple sowing tubes 221 in the sowing shell 21, a better uniform sowing effect can be achieved.

[0109] On the basis of the above embodiments, two sets of sowing tube groups 22 are arranged in the sowing housing 21, and the two sets of sowing tube groups 22 are arranged in mirror symmetry; the inlet ends of the sowing tubes 221 of the two sets of sowing tube groups 22 are respectively located at both ends of the sowing housing 21 in the length direction, and the outlet ends are arranged towards the middle of the sowing housing 21.

[0110] Specifically, each sowing tube group 22 includes four sowing tubes 221; the sowing tubes 221 in the same sowing tube group 22 are arranged in a rectangular array, that is to say, the four sowing tubes 221 are arranged in a "field" shape, and the outlet ends of the sowing tubes 221 are distributed from the end of the sowing housing 21 towards the middle position. Refer to Fig.12 and Fig.13 , the lengths of the sowing tubes 221 are in an increasing order, the two lower sowing tubes 221 are shorter, and the two upper sowing tubes 221 are longer. With such a structure, the outlet ends of the sowing tubes 221 are arranged in a structure that gradually distributes from the end of the sowing housing 21 towards the middle position, and includes the horizontal and vertical distributions in the "field" shape. The outlet end of each sowing tube 221 can blow out seeds by air flow. When the seeds are blown and thrown out of the sowing tube 221, they are scattered and fall, and fall out of the seed discharging port 211 to the ground. Its effect is closer to manual throwing, and the dispersibility is extremely good. By combining the sowing of 8 sowing tubes 221 in two groups, the overall length area of the sowing housing 21 can be completely covered.

[0111] The overall length of the sowing housing 21 used in this scheme is 270 cm. According to the specifications of the actual sowing products, the number of sowing tubes 221 can be increased or decreased adaptively.

[0112] On the basis of the above embodiments, a diversion assembly 23 is further arranged at the seed discharging port 211 of the sowing housing 21. Through the diversion assembly 23, the seeds discharged from the outlet end of the sowing tube 221 can be diverted, further improving the dispersibility and uniformity of sowing.

[0113] The diversion assembly 23 includes a plurality of diversion plates 231, and the diversion plates 231 are evenly arranged in a linear array along the length direction of the sowing housing 21; the plate body of the diversion plate 231 is provided with an inclined portion, and the inclined portion is an inclined plate surface structure. As mentioned above, the structure form adopted in this scheme is that the outlet end of the sowing tube 221 is arranged horizontally. In addition to the throwing effect of the seeds relative to the outlet end position of the sowing tube 221 formed by air flow for seed delivery, the additional diversion plates 231 as the guiding structure for air flow and seeds can be more helpful for the uniform scattering of seeds.

[0114] On the basis of the above embodiments, refer to Fig.11The guide plate 231 is a bent plate body, including an upper folding plate and a lower folding plate. The upper end of the upper folding plate is inclined toward the middle of the sowing shell 21, and the lower end is inclined toward the end of the sowing shell 21; the lower folding plate is fixedly connected to the lower edge of the upper folding plate, and the lower edge of the lower folding plate is inclined toward the middle of the sowing shell 21. The guide plate 231 is in a "<" shape, and the guide plate 231 is symmetrically arranged in the middle of the sowing shell 21, so as to Fig.11 The direction is for reference. The guide plate 231 to the left in the middle of the sowing shell 21 is in a "<" shape, and the guide plate 231 to the right in the middle is in a ">" shape. The direction of the airflow is toward the protruding position of the guide plate 231. After the seeds fly out of the sowing tube 221, the seeds that fall on the upper folding plate of the guide plate 231 will bounce or slide in the opposite direction toward the end of the sowing shell 21 along its inclination direction. Relatively speaking, in order to prevent the seeds that fly out of the upper part from flying too far, the guide plate 231 can guide them in the opposite direction. The seeds that fly out below the lower folding plate of the guide plate 231 indicate that their throwing force is already weak, so there is no need to hinder them.

[0115] It should be noted that the upper edge of the upper folded plate of the guide plate 231 is located below the nozzle of the lower sowing tube 221, rather than extending to the extension line of the sowing tube 221. Because both the airflow and the seeds do not leave the sowing tube 221 in a cylindrical direction, but will disperse after leaving the outlet, the upper folded plate of the guide plate 231 is located below the extension line of the nozzle of the sowing tube 221.

[0116] On the basis of the above implementation scheme, the guide assembly 23 is also provided with a guide rod group, which is also arranged at the seed discharge port 211, and one guide rod group is arranged for each seed sowing tube 221; each guide rod group includes a plurality of guide rods 232, and the guide rods 232 are arranged on the side of the outlet end of the corresponding seed sowing tube 221 toward the middle of the seed sowing shell 21. The guide rod 232 is an inclined rod body, and the upper end of the guide rod 232 is inclined toward the end of the seed sowing shell 21, that is, it is inclined toward the outlet end of the corresponding seed sowing tube 221, and the lower end of the guide rod 232 is inclined toward the middle of the seed sowing shell 21. Fig.11 With reference to the middle direction, the upper end of the guide rod 232 located at the left half of the sowing shell 21 tilts to the left, and the lower end tilts to the right. On the contrary, the upper end of the guide rod 232 located at the right half of the sowing shell 21 tilts to the right, and the lower end tilts to the left.

[0117] On the basis of combining the guide plate 231, a guide rod 232 is added as a seed interception structure. Because after the seeds are sent out of the sowing tube 221 by the airflow, the speed of the seeds close to the outlet end is relatively large, and the seeds far from the outlet end are less affected by the airflow. Therefore, the guide rod 232 is set on the flight path of the seeds, and the seeds are blocked by its rod body, so that part of the seeds can be intercepted at a position close to the outlet end of the sowing tube 221, so that the seeds can be scattered more evenly in the area between the outlet end of the sowing tube 221 and the farthest flying position of the seeds.

[0118] Based on the above implementation, the guide rods 232 of the same guide rod group are arranged in a linear array along the length direction of the sowing shell 21; and the guide rods 232 in the same guide rod group are arranged in a staggered distribution in the linear direction. Fig.10 ,exist Fig.10 It can be seen from the direction that each sowing tube 221 is provided with a guide rod 232 in the outlet direction, and the guide rods 232 are arranged in an up-and-down staggered manner. Because the guide rod 232 serves to intercept some seeds, rather than to block all seeds, a rod body is used, and the outer diameter of the rod body is slightly larger than the outer diameter of the seed particles. The maximum diameter of the seed is d1, and the diameter of the guide rod 232 is d2, and d2 is less than or equal to 1.5d1, and d2 is greater than or equal to d1. Through such a setting form of this scheme, the guide rod 232 can block some seeds, while the seeds that are not blocked fall normally according to their parabolic path.

[0119] Based on the above implementation scheme, see Fig.15 and Fig.16 In order to facilitate processing and adjustment, the guide rod 232 is movably connected to the guide plate 231, and the guide rod 232 can move toward or away from its corresponding sowing tube 221.

[0120] There are many specific implementation forms, such as the guide rod 232 itself adopts a retractable rod structure. This solution adopts the guide rod 232 in the form of a screw, which has three effects. First, with the help of the screw structure, the guide rod 232 and the guide plate 231 can be threadedly connected, and the length of the guide rod 232 in the direction of the sowing tube 221 can be adjusted directly by screwing to achieve telescopic adjustment. Second, the threaded structure is easy to process. Compared with the rod body with a telescopic structure itself, the rod body directly adopts a threaded structure, which has a lower manufacturing cost. And because this structure is applied to a seed drill, the simple screw structure is more durable. Third, the guide rod 232 itself has threads. After the airflow blows onto the rod body of the guide rod 232, compared with the smooth rod body, the airflow is easier to enter the threaded groove on the rod body of the guide rod 232, thereby driving the seeds to contact the guide rod 232 itself. If it is a smooth rod structure, after the airflow blows onto the rod of the guide rod 232, a layer of fluid cover will be formed on the surface in contact with the rod, making it easy for the seeds to bypass the guide rod 32 under the guidance of the airflow instead of colliding with the rod of the guide rod 232.

[0121] Based on the above implementation scheme, see Fig.11 The connection between the upper folding plate and the lower folding plate of the guide plate 231 is flush with the lower edge of the seeding port 211; because the airflow for sending seeds is discharged from the outlet end of the seeding tube 221, the airflow will diffuse, and the seeding shell 21 itself also has the function of guiding the airflow, and its seeding port 211 is located at the bottom, and the upper folding plate is located in the seeding shell 21, which helps to evenly spread the seeds. This has been explained in the above content and will not be repeated here. The function of the lower folding plate itself is to make the seeds with a lower falling angle fall smoothly. Setting the lower folding plate on the outside of the seeding shell 21 is more conducive to the diffusion of the airflow and more conducive to the dispersion of the seeds.

[0122] See also Fig.15 and Fig.16 The guide rod 232 is movably connected to the upper folding plate; the length direction of the sowing shell 21 is the longitudinal direction, and the horizontal width direction of the sowing shell 21 is the transverse direction. A transverse sliding groove is provided on the plate body of the upper folding plate; the guide rod 231 can slide along the sliding groove on the upper folding plate.

[0123] The structural form adopted in this solution is that two nuts are threadedly connected on the rod body of the guide rod 232, and the two nuts are respectively located on both sides of the upper folding plate, and the guide rod 232 itself slides in the slide groove of the upper folding plate. In addition to this structure, other structural forms can also be adopted, as long as the guide rod 232 can move horizontally and extend relative to the upper folding plate.

[0124] Based on the above implementation scheme, see Figure 1 , Figure 3 , Fig.17 and Fig.18The soil covering mechanism 3 is a conveyor belt type conveying structure; the conveying feed end of the soil covering mechanism 3 is arranged close to the second rotary tillage unit 12, and the conveying discharge end is extended toward the rear suppression mechanism 4.

[0125] The soil covering mechanism 3 includes a conveying shaft 31 and a conveying belt 32. Two conveying shafts 31 are provided, one of which is an active rotating shaft and the other is a driven rotating shaft. The conveying belt 32 is sleeved on the outside of the conveying shaft 31 and can rotate with the conveying shaft 31; the conveying belt 32 is inclined, and the side close to the second rotary tillage unit 12 is a low level side. The sowing mechanism 2 is arranged in the area below the conveying belt 32. A soil covering structure is arranged on the discharge side of the conveying belt 32, and the conveying belt 32 is arranged in front of the suppression mechanism 4, so that the seeds can be covered with soil, and then suppressed by the suppression mechanism 4. During the whole process, the seeds are not affected by the rotary tillage work.

[0126] On the basis of the above implementation scheme, in order to have a larger working area as much as possible during sowing, the width of the device as a whole is relatively large. In this case, the use of an integrated conveying shaft 31 is prone to the problem of shaft breakage, or it is necessary to use high-strength materials at a high cost to make the conveying shaft 31, and this type of material is often heavy and will increase the load on the equipment. In addition, when the width is large, there is another problem. When working for a long time, the conveyor belt 32 is easy to deviate, causing it to tilt on the conveying shaft, thereby affecting the work.

[0127] To address these two issues, the conveyor shaft 31 of this solution adopts a spliced ​​structure. Each conveyor shaft 31 is spliced ​​by multiple conveyor shaft rods 311, which is more conducive to the force distribution of the entire conveyor shaft 31 and can also effectively reduce the production cost. Figure 3 As shown, the conveyor belt 32 is composed of three belt bodies 321, and the two edges of the middle belt body 321 are sleeved on the inner circles of the two side belt bodies 321. Fig.17 Each belt body 321 is provided with a clamping strip 322 inside, the clamping strip 322 forms an annular strip boss structure inside the belt body 321, and a clamping groove 312 is provided on the conveying shaft 31 corresponding to the clamping strip 322, and the clamping strip 322 is clamped in the clamping groove 312. Through this form, the problem of the conveying belt 32 being skewed and deviated can be effectively avoided.

[0128] On the basis of the above implementation scheme, an annular notch is provided at the connection of two adjacent conveying shafts 311, and after the two adjacent conveying shafts 311 are connected, the annular notch positions thereof are assembled into a slot 312. This method takes into account the convenience of processing and installation, and can meet the equipment requirements at the same time.

[0129] Based on the above implementation scheme, see Figure 2 The suppression structure 4 further includes a suppression frame 42, a suppression roller 41 and the suppression frame 42 are rotatably connected, and one side of the suppression frame 42 is rotatably connected to the front side of the frame 200. A suppression adjustment component 43 is provided between the suppression frame 42 and the frame 200, and the suppression adjustment component 43 can drive the suppression frame 42 to rotate relative to the frame 200, so as to adjust the relative angle between the suppression frame 42 and the frame 200.

[0130] Through this mechanism, the pressing force of the pressing mechanism 4 can be adjusted. The closer the pressing frame 42 drives the pressing roller 41 to its position, the stronger the pressing force will be. Otherwise, the weaker the pressing force will be.

[0131] In conventional sowing schemes, suppression is usually carried out entirely by the deadweight of the suppression roller, and the working height of the suppression roller cannot be adjusted according to usage requirements. Through the structure of this scheme, the appropriate suppression strength can be obtained by changing the position of the suppression frame 42, and when strong suppression is required, the supporting force of the suppression roller of this scheme comes from the power of the entire equipment transmitted by the frame 200, so that greater suppression can be carried out.

[0132] On the basis of the above-mentioned implementation scheme, this solution provides a specific structural form of a suppression adjustment component 43. The suppression adjustment component 43 includes a suppression adjustment rod, which is a screw rod, and one end of the rod body is rotatably connected to the suppression frame 42. A suppression adjustment seat is rotatably connected to the front side of the frame 200, and an adjustment sleeve is rotatably connected inside the suppression adjustment seat, and the adjustment sleeve is threadedly connected to the suppression adjustment rod.

[0133] When adjustment is required, the suppression sleeve only needs to be rotated, and the suppression adjustment rod moves up and down relative to the adjustment sleeve driven by the threaded structure, thereby driving the suppression frame 42 to rotate relative to the frame 200.

[0134] On the basis of the above embodiment, the pressing mechanism 4 further includes a cleaning member 44, which is a scraper structure as a whole, the upper part of which is hung on the pressing frame 42, and the lower part is in contact with the outer surface of the pressing roller 41. Considering that the surface of the pressing roller 41 will have soil attached after a long period of work, the cleaning member 44 is provided to scrape the soil off as the pressing roller 41 rotates.

[0135] On the basis of the above embodiment, a rotating shaft is arranged on the upper part of the cleaning member 44, and a U-shaped groove is arranged on the pressing frame 42 corresponding to the rotating shaft, and the rotating shaft is clamped in the U-shaped groove. With this structure, the cleaning member 44 is hung in the U-shaped groove of the pressing frame 42 by its own weight. If there are very solid clods attached to the pressing roller 41 or stones embedded in the pressing roller 41, the cleaning member 44 will be slightly lifted up, and the relatively thin lower part of the cleaning member 44 will not be damaged.

[0136] On the basis of the above embodiment, the suppression adjustment assembly 43 further includes an adjustment drive member, which is fixedly connected to the suppression adjustment seat, and the adjustment drive member is a motor, whose motor shaft is linked to the adjustment sleeve to drive the adjustment sleeve to rotate. Through this structure, the suppression frame 42 can be adjusted in an electrically controlled manner.

[0137] On the basis of the above-mentioned implementation scheme, the suppression adjustment member 43 also includes a sensing member, which is arranged at the lower part of the cleaning member 44, and its sensing end is arranged downward, and the sensing member is a pressure sensor, such as a deformation resistor. The specific setting position of the sensing member can be in the middle or both ends of the lower part of the cleaning member 44. The sensing member is electrically connected to the control module to form a feedback, and the control module is electrically connected to the adjustment drive member to form a control loop. Because the outer surface of the pressing roller 41 will adhere to the soil during the suppression process, the suppression intensity or soil moisture will affect the adhesion strength of the soil on the outer surface of the pressing roller 41. When the cleaning member 44 is cleaning, the sensing member can feedback the adhesion of the contacted soil. If the feedback adhesion is too large, the adjustment drive member drives the suppression frame 42 to lift slightly. Conversely, the suppression frame 42 can also be driven to slightly drop to obtain a suitable suppression intensity.

[0138] The sowing device and sowing method of this scheme can be applied to the sowing of a variety of different crops, and are mainly applicable to the sowing of wheat. This scheme is different from the traditional strip sowing technology, and realizes the full-width uniform sowing of wheat. The following is a comparative experimental display of wheat growth after sowing with the full-width uniform sowing (abbreviated as uniform sowing) of this scheme and the traditional strip sowing (abbreviated as strip sowing).

[0139] See also Fig.19 , a root scanner model LA 2400 was used to scan the roots of wheat grown in strips and uniformly sown. It can be seen that at a depth of 0-100 cm, both sowing methods are covered by roots. After a depth of more than 100 cm, the root distribution of wheat in strips is very small, while the uniformly sown wheat still has root distribution. In addition, within the depth range of 0-100 cm, the root distribution of wheat in uniform sowing is more uniform than that of wheat in strips, which is more conducive to the growth of wheat. For wheat roots, root length usually reflects the plant's ability to expand in the soil, which helps to improve the absorption of water and nutrients. Longer root length means that the roots can contact more soil volume, absorb more water and nutrients, and improve the crop's drought resistance.

[0140] See also Fig. 20, the difference between strip sowing and uniform sowing will lead to different canopy structures of wheat, and the difference in canopy structure will lead to changes in spectral reflectance. Through reflectance data, the characteristics of wheat canopy structure under different sowing methods can be compared. The reflectance of wheat in the 300-1100nm band was measured using a ground spectrometer (model: ATP9100) to compare the characteristics of wheat canopy structure under different sowing methods. Strip sowing will cause obvious inter-row gaps in the wheat canopy, and the soil is usually exposed in these gaps. Under uniform sowing, the wheat canopy is more evenly covered and less exposed to the soil. This can reduce the overall reflectivity. Lower reflectivity means that there are more chlorophyll and healthy cell structures in the leaves, which means that more light energy is absorbed by vegetation for photosynthesis, which helps to increase the growth rate and biomass accumulation of wheat. In addition, the uniform spacing between uniform sowing plants helps to maintain soil moisture and reduce evaporation, reducing growth differences caused by uneven density, and ultimately helping to improve wheat yield and quality.

[0141] Strip sowing and uniform sowing will result in different canopy densities and different temperature distributions. Thermal imaging can show the consistency of wheat growth assessment. Use a handheld thermal imager (FOTRIC 288) to analyze temperature distribution and wheat growth conditions. Fig.21 The middle is uniformly sown wheat, and the wheat plants are arranged densely and evenly, reducing the high-temperature areas of exposed soil. Therefore, the temperature distribution is more uniform, and there are fewer high-temperature areas. The vegetation coverage rate is high, the overall temperature is more consistent, and it shows a more stable temperature characteristic. Fig. 22 The strip-sown wheat has large spaces between rows, which leads to significant temperature differences, especially where the soil is exposed, showing higher temperatures. The temperature distribution is relatively complex, with more high-temperature areas.

[0142] Table 1 Effect of sowing method on wheat yield and its components

[0143]

[0144] As shown in Table 1, the yield and number of ears under different sowing methods in the same year were the highest in full-width uniform sowing. Compared with conventional drill sowing, the yield and number of ears in 2022-2023 increased significantly by 18.35% and 46.97%, respectively, and the yield and number of ears in 2023-2024 increased significantly by 18.71% and 47.21%, respectively. The results of the two years showed that the number of grains per ear and the thousand-grain weight were the lowest in full-width uniform sowing. Compared with conventional drill sowing, the number of grains per ear and the thousand-grain weight in 2022-2023 decreased significantly by 5.02% and 14.98%, respectively, and the number of grains per ear and the thousand-grain weight in 2023-2024 decreased significantly by 4.64% and 14.97%, respectively.

[0145] Table 2 Effects of sowing methods on the interception rate, interception amount, and transmittance of photosynthetically active radiation in the canopy of wheat during flowering period and light energy utilization rate during the growth period

[0146]

[0147] As shown in Table 2, the photosynthetically active radiation interception rate, interception amount and light energy utilization rate of winter wheat canopy under different sowing methods in the same year were the highest in full-width uniform sowing. Compared with conventional strip sowing, the photosynthetically active radiation interception rate, interception amount and light energy utilization rate in 2022-2023 were significantly increased by 4.10%, 4.11% and 47.17%, respectively, and the photosynthetically active radiation interception rate, interception amount and light energy utilization rate in 2023-2024 were significantly increased by 4.11%, 4.11% and 44.00%, respectively. The results of the two years consistently showed that the transmittance was the lowest in full-width uniform sowing. Compared with conventional strip sowing, the transmittance in the two growing seasons of 2022-2023 and 2023-2024 was significantly reduced by 74.26% and 75.39%, respectively.

[0148] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0149] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like 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 a 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 application can be understood according to the specific circumstances.

[0150] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being 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 the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0151] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0152] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0153] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A sowing method, characterized in that: Includes steps: S1. Construct a long strip sowing shell structure, wherein the lower part of the sowing shell is a seed discharge port, and both ends in the length direction are seed inlets; the forward direction during sowing is a, and the length direction of the sowing shell is b, and a and b are not parallel; S2, connecting the outlet end of the seeding device to the seed conveying pipeline, introducing airflow into the seed conveying pipeline, and pushing the seeds into the seed inlets at both ends of the seeding shell by means of the flow of the airflow, and the seeds enter the seeding shell from the seed inlets of the seeding shell; S3. The seeds entering the sowing shell are distributed and fall in the length direction of the sowing shell and are discharged from the seed discharging port.

2. The sowing method according to claim 1, characterized in that: The step S3 comprises: S301, a plurality of seed placement positions are arranged inside the seed sowing shell, and the seed placement positions are distributed along the length direction of the seed sowing shell; S302, the seeds entering the sowing shell move along the length direction of the sowing shell, and when the seeds move to the sowing position, the moving direction is changed from the sowing position to move toward the seed discharge port.

3. The sowing method according to claim 2, characterized in that: In step S301, the seed placement positions are evenly distributed from both ends of the seeding shell to the middle area; The step S3 further comprises: S303, guiding the seeds blown out from the seed placement position to the seed discharging port; the method for guiding the seeds is to set a plurality of guide members in the area from the seed placement position to the middle position of the seed sowing shell, the guide members are distributed along the length direction of the seed sowing shell, and the guide members are distributed in a wave shape; The maximum diameter of the seed is d1, the width of the guide is d2, and d2 is less than or equal to 3d1.

4. A full-width uniform sowing method, characterized in that: Includes steps: A1. Rotary tillage the ground; A2. Sowing seeds by using the sowing method described in any one of claims 1 to 3; A3. Cover and compact the area after sowing.

5. The full-width uniform sowing method according to claim 4, characterized in that: The method of rotary tilling the ground in step A1 is specifically as follows: A101, with the sowing direction as a, direction a being the front, performing a first rotary tillage operation along direction a, wherein the rotary tillage blade during the first rotary tillage operation rotates from top to bottom toward direction a; A102. Perform a second rotary tillage operation after the first rotary tillage operation, and the rotation direction of the rotary tillage blade during the second rotary tillage operation is opposite to the rotation direction of the rotary tillage blade during the first rotary tillage operation.

6. The full-width uniform sowing method according to claim 5, characterized in that: In step A3, the area after sowing is covered with soil and compacted, specifically, A301. During the second rotary tillage operation, the rotary tillage blade is used to move the rotary tilled soil to above the sowing shell; A302, transport the soil lifted up by A301 to the rear of the sowing shell, and make it fall to the ground; A303. Suppress the ground after the soil falls from A302.

7. A sowing device, characterized in that: Applicable to the sowing method as claimed in any one of claims 4 to 6; comprising: The rotary tillage mechanism can perform rotary tillage on the ground, including: A first rotary tilling unit comprises a first rotary tilling shaft, on which a first rotary tilling blade group is arranged; The second rotary tilling unit is arranged at the rear side of the first rotary tilling unit and is arranged adjacent to the first rotary tilling unit. The second rotary tilling unit comprises a second rotary tilling shaft, on which a second rotary tilling blade group is arranged. The rotation direction of the second rotary tilling shaft is opposite to that of the first rotary tilling shaft. A sowing mechanism, applied to the sowing method as claimed in any one of claims 1 to 3, comprising: The sowing shell is a long strip structure with a hollow interior. A seed discharge port is provided at the bottom of the sowing shell, through which seeds can be discharged. A sowing tube group, comprising a plurality of sowing tubes arranged inside the sowing shell; The inlet end of the sowing tube is connected to the seed supply mechanism through the seed delivery pipeline, and the seed supply mechanism is an air flow delivery mechanism; the outlet end of the sowing tube in the sowing tube group is distributed above the seed discharge port of the sowing shell; The soil covering mechanism is arranged at the rear side of the second rotary tillage unit, and the soil covering and conveying unit can convey the soil turned up by the second rotary tillage unit to the rear.

8. The sowing device according to claim 7, characterized in that: The first rotary tillage blade group comprises: a first rotary tiller, disposed around the first rotary tiller shaft, one end of the first rotary tiller being fixedly connected to the first rotary tiller shaft, and the other end of the first rotary tiller extending in a direction away from the first rotary tiller shaft; The end of the first rotary tiller blade away from the first rotary tiller shaft is a bent structure; The first rotary tilling blades of the first rotary tilling blade group are arranged in a spiral distribution on the circumference of the first rotary tilling shaft; The first rotary tillage blade group comprises: The rotary tiller blade group includes two first rotary tillers, and the bending directions of the bending structures at the ends of the two first rotary tillers in the same rotary tiller blade group are opposite; The rotary tiller blade groups in the first rotary tiller blade group are arranged in a spiral distribution.

9. The sowing device according to claim 8, characterized in that: The second rotary tillage blade group comprises: a second rotary tiller, disposed around the second rotary tiller shaft, one end of the second rotary tiller being fixedly connected to the second rotary tiller shaft, and the other end of the second rotary tiller extending in a direction away from the second rotary tiller shaft; The blade of the second rotary tiller is a straight plate structure; The second rotary tilling blades of the second rotary tilling blade group are spirally distributed on the circumference of the second rotary tilling shaft; The blade of the second rotary tiller is tilted; the angle between the extended surface of the blade of the second rotary tiller and the axis of the second rotary tiller shaft is 30°-60°; The first rotary tilling shaft is provided with two first rotary tilling blade groups, and the two first rotary tilling blade groups are arranged in a mirror-image manner with the middle cross section of the first rotary tilling shaft as a symmetry plane; The second rotary tilling shaft is provided with two second rotary tilling blade groups, and the two second rotary tilling blade groups are arranged in a mirror-symmetrical manner with the middle cross section of the second rotary tilling shaft as a symmetry plane.

10. The sowing device according to claim 9, characterized in that: The soil covering mechanism is a conveyor belt type conveying structure; the conveying feed end of the soil covering mechanism is arranged close to the second rotary tillage unit, and the conveying discharge end is extended toward the rear; The soil covering mechanism comprises: There are two conveying shafts, at least one of which is an active rotating shaft; A conveyor belt is sleeved on the outside of the conveyor shaft and can rotate along with the conveyor shaft; The conveyor belt is arranged obliquely, and the side of the conveyor belt close to the second rotary tillage unit is a low level side.

11. The sowing device according to claim 7, characterized in that: The sowing tubes in the sowing tube group have different lengths, and the outlet ends of the sowing tubes are opened in a horizontal direction; the inlet ends of the sowing tubes extend to one end of the sowing shell in the length direction; Two groups of sowing tubes are arranged in the sowing shell, and the two groups of sowing tubes are arranged in mirror symmetry; the inlet ends of the sowing tubes of the two groups of sowing tubes are respectively located at the two ends of the length direction of the sowing shell; and the outlet ends are arranged toward the middle of the sowing shell; Each of the seeding tube groups includes a plurality of seeding tubes; The sowing tubes in the same sowing tube group are arranged in a rectangular array, and the outlet ends of the sowing tubes are distributed from the end of the sowing shell toward the middle position; Also includes: The flow guide component is arranged at the seed discharging port and can guide the seeds discharged from the outlet end of the seed discharging tube; the flow guide component includes: A plurality of guide plates are provided along the length direction of the sowing shell; the guide plate body is provided with an inclined portion, and the inclined portion is an inclined plate surface structure; A guide rod group is arranged at the seeding port, and one guide rod group is arranged corresponding to each seeding tube; each guide rod group includes: At least one flow guide rod is provided, and the flow guide rod is arranged on the side of the outlet end of the corresponding sowing tube facing the middle of the sowing shell; The flow guide rod is a rod body that is arranged obliquely, the upper end of the rod body of the flow guide rod is inclined toward the end direction of the sowing shell, and the lower end is inclined toward the middle direction of the sowing shell.

Images