High-purity alfalfa seed propagation equipment and method

Abstract

The invention discloses high-purity alfalfa seed propagation equipment and method, and belongs to the field of agricultural planting.The high-purity alfalfa seed propagation equipment comprises a vehicle body, a seed bin is fixedly connected to the upper end of the vehicle body, mounting frames are movably connected to the positions, close to the front end and the rear end, of the two sides of the vehicle body, and a pressing roller is movably connected between the two mounting frames at the rear end; wheels are movably connected between the two mounting frames at the front end, hydraulic cylinders are fixedly connected to the upper portions of the two sides of the vehicle body, lifting frames are fixedly connected to the lower ends of the hydraulic cylinders, and a connecting shaft is movably connected between the two lifting frames. And backfilling assemblies are arranged outside the connecting shaft at equal intervals, the backfilling assemblies can achieve soil backfilling, each backfilling assembly comprises a housing movably connected to the outer portion of the connecting shaft at equal intervals, and a ditching disc is movably connected to the interior of each housing. Soil backfilling after sowing can be achieved, the compaction degree of soil in a sowing area is guaranteed, and then the propagation expanding efficiency of alfalfa is improved.

Description

Technical Field

[0001] The present invention relates to the field of agricultural planting, and more specifically to a high-purity alfalfa seed propagation device and method. Background Art

[0002] Alfalfa is a perennial herb of the genus Medicago in the legume family. It is known as the "king of forage grasses". It not only has high yield but also excellent grass quality. It is a favorite food of all kinds of livestock and poultry.

[0003] Alfalfa is generally propagated by sowing. Because the seeds are very small and weigh 1.5 to 2 grams per thousand, it is necessary to pay attention to strong winds and heavy rains when sowing, so the sowing period is more affected by the season. Alfalfa grows slowly in the seedling stage and is easily harmed by weeds. The land must be carefully prepared before sowing, and the growth is uneven, which is not conducive to management;

[0004] After sowing alfalfa, the soil needs to be compacted. Compacted soil can maintain a suitable temperature, reduce water loss, and is not easy to clump, which can effectively promote seed germination.

[0005] However, the existing alfalfa planting equipment generally uses a furrow opener to open a furrow, then scatters alfalfa seeds into the furrow, and then uses a roller to compact it. This method causes the soil taken out during furrow opening to accumulate on both sides of the furrow. When the roller compacts it, some of the soil cannot be backfilled into the furrow, so that the compaction degree of the compacted soil in the area around the sowing is higher than that in the sowing area, that is, the compaction degree of the sowing area is too low, which is not conducive to the germination of alfalfa seeds and reduces the propagation efficiency. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-purity alfalfa seed propagation device and method, which can realize soil backfilling after sowing, ensure the compaction of the soil in the sowing area, and thus improve the alfalfa propagation efficiency.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A high-purity alfalfa seed propagation device and method, comprising a vehicle body, wherein a seed bin is fixedly connected to the upper end of the vehicle body, mounting frames are movably connected to the positions near the front and rear ends of both sides of the vehicle body, a pressure roller is movably connected between the two mounting frames at the rear end, and wheels are movably connected between the two mounting frames at the front end, hydraulic cylinders are fixedly connected to the upper parts of both sides of the vehicle body, and a lifting frame is fixedly connected to the lower end of the hydraulic cylinder, and a connecting shaft is movably connected between the two lifting frames;

[0009] Backfill components are equidistantly arranged on the outside of the coupling, and the backfill components can realize soil backfilling. The backfill components include a cover shell equidistantly movably connected to the outside of the coupling, and a furrowing plate is movably connected inside the cover shell, and furrowing grooves are equidistantly arranged on the annular side of the furrowing plate, and a first sowing tube is movably connected between the seed bin and the cover shell.

[0010] Furthermore, a mixing assembly is provided at the rear portion of the cover shell, and the mixing assembly includes a limiting slide groove opened on the right side of the cover shell, a turntable is movably connected to the right side of the cover shell, and a rotating shaft is movably connected between the turntable and the cover shell, the right end of the rotating shaft passes through and extends to the right side of the turntable, a belt is movably connected between the right side area of ​​the turntable outside the rotating shaft and the connecting shaft, a guide groove is opened at the front end of the turntable, and a sliding rod is movably connected inside the guide groove, and the left end of the sliding rod passes through the interior of the cover shell through the limiting slide groove.

[0011] Furthermore, the mixing assembly also includes a second sowing tube movably connected to the inside of the first sowing tube, the upper part of the second sowing tube is provided with a grain inlet, and the lower part of the second sowing tube is provided with a grain discharge outlet, and the lower end of the second sowing tube is fixedly connected to a pressure plate.

[0012] Furthermore, in an initial state, the upper end of the second sowing tube extends out of the first sowing tube, the front portion of the slide rod is bent downward, and the front end of the slide rod is fixedly connected to the pressure plate.

[0013] Furthermore, an ejection assembly is provided inside the grooving disc, and the ejection assembly includes grooves equidistantly opened inside the grooving disc and located on the inner side of the grooving groove, the grooves are connected to the grooving groove, a second spring is movably connected inside the groove, the outer end of the second spring is fixedly connected to the push plate, and a magnet is fixedly connected to the lower rear end of the cover shell.

[0014] Furthermore, the width of the push plate is adapted to the minimum width of the groove, and extension blocks are slidably connected to both sides of the push plate. A third spring is fixedly connected inside the push plate between the two extension blocks, and the width of the extension block after being unfolded and combined with the push plate is adapted to the maximum width of the groove.

[0015] Furthermore, a loose component is provided at the inner rear end of the cover shell, and the loose component includes a spiral rod fixedly connected to the inner rear end of the cover shell, a sleeve is sleeved on the outside of the spiral rod, and a first spring fixedly connected to the spiral rod is provided inside the sleeve.

[0016] Furthermore, a connecting frame is fixedly connected to the front end of the vehicle body, a motor is fixedly connected to the lower outer portion of the left lifting frame, and an output shaft of the motor passes through the lifting frame and is fixedly connected to the connecting shaft.

[0017] A high-purity alfalfa seed propagation method comprises the following steps:

[0018] S1: Seed selection: select high-quality alfalfa seeds as breeding seeds;

[0019] S2: Select the land suitable for alfalfa growth as the land for propagation and perform rotary tillage on the land;

[0020] S3: Sowing, planting alfalfa seeds into the soil and compacting the soil in the planting area.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) In this scheme, the trench filled with soil is rotated from the front end to the rear end of the trenching disc, and then falls into the trench under the action of gravity to achieve soil backfilling. In this way, the soil in the trench will not accumulate on both sides of the trench during planting, so that the soil in the trench can be compacted, thereby ensuring the germination rate of sown alfalfa seeds and improving the quality of alfalfa propagation.

[0023] (2) In this scheme, after the pressure plate slides down, it will press down the soil inside the groove, causing a cavity in the soil, and then the seeds inside the second sowing tube will be discharged into the formed cavity through the discharge port. In this way, when the soil is backfilled, it will fall into the groove together with the sown seeds. The soil covers the seeds and increases the weight of the seeds, ensuring that the seeds can be sown smoothly, thereby ensuring the quality of alfalfa propagation.

[0024] (3) In this solution, the push plate is pulled outward by the magnetic attraction of the magnet, so that the soil in the trench can be pushed out by the push plate, ensuring that the soil can be backfilled smoothly and preventing the soil from being too wet and sticking to the trench.

[0025] (4) This scheme uses a sleeve to disperse the soil, and the sleeve will move along the spiral rod after being subjected to force. During the displacement process, the sleeve rotates, thereby further dispersing the pushed-out soil, allowing the soil and alfalfa seeds to be mixed more fully, increasing the gravity of the alfalfa seeds, further ensuring that the alfalfa seeds can be sown smoothly, and ensuring the quality of alfalfa propagation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A magnified view of middle;

[0028] Figure 3 It is a schematic diagram of the internal structure of the trenching disc of the present invention;

[0029] Figure 4It is a schematic diagram of the cross-sectional structure of the cover shell of the present invention;

[0030] Figure 5 It is a schematic diagram of the local structure of the mixing assembly of the present invention;

[0031] Figure 6 This is a view of the combination of the first sowing tube and the second sowing tube of the present invention;

[0032] Figure 7 It is a schematic diagram of the loose component structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the push plate structure of the present invention.

[0034] Description of the numbers in the figure:

[0035] 1. Car body; 2. Seed bin; 3. Connecting frame; 4. Mounting frame; 5. Wheel; 6. Pressing roller; 7. Hydraulic cylinder; 8. Lifting frame; 9. Coupling shaft; 10. Motor; 11. Backfilling assembly; 111. Cover; 112. Grooving disc; 113. Grooving; 12. Mixing assembly; 121. Limiting slide; 122. Slide bar; 123. Turntable; 124. Rotating shaft; 125. Belt; 126. Guide groove; 127. Second sowing pipe; 128. Grain inlet; 129. Grain discharge; 130. Pressing plate; 13. First sowing pipe; 14. Loose assembly; 141. Screw rod; 142. Sleeve; 143. First spring; 15. Ejection assembly; 151. Groove; 152. Second spring; 153. Magnet; 154. Push plate; 155. Extension block; 156. Third spring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 3A high-purity alfalfa seed propagation equipment comprises a vehicle body 1, a seed bin 2 is fixedly connected to the upper end of the vehicle body 1, a connecting frame 3 is fixedly connected to the front end of the vehicle body 1, a pressure roller 6 is movably connected between the two mounting frames 4 at the rear end, and a wheel 5 is movably connected between the two mounting frames 4 at the front end, hydraulic cylinders 7 are fixedly connected to the upper parts of both sides of the vehicle body 1, and a lifting frame 8 is fixedly connected to the lower end of the hydraulic cylinder 7, a connecting shaft 9 is movably connected between the two lifting frames 8, a motor 10 is fixedly connected to the lower outer part of the lifting frame 8 on the left side, and the output shaft of the motor 10 passes through the lifting frame 8 and is fixedly connected to the connecting shaft 9, and mounting frames 4 are movably connected to the positions near the front and rear ends on both sides of the vehicle body 1;

[0038] The outside of the coupling 9 is equidistantly provided with backfill components 11, and the backfill components 11 can realize soil backfilling. The backfill components 11 include a cover shell 111 equidistantly movably connected to the outside of the coupling 9, and the inside of the cover shell 111 is movably connected with a furrowing plate 112, and the annular side of the furrowing plate 112 is equidistantly provided with furrowing grooves 113, and a first sowing pipe 13 is movably connected between the seed bin 2 and the cover shell 111.

[0039] By adopting the above technical solution, the vehicle body 1 is first connected to agricultural machinery such as a tractor and a rotary tiller through the connecting frame 3, which is used as power. Then, the vehicle body 1 is driven to move under the action of these powers to start sowing. When sowing, alfalfa seeds are first loaded into the seed bin 2, and then the hydraulic cylinder 7 is used to push the lifting frame 8 downward, so that the furrowing disc 112 connected to the shaft 9 between the lifting frames 8 is in contact with the ground. At this time, the motor 10 works to drive the furrowing disc 112 to rotate to realize furrowing the land. Since the furrowing groove 11 is opened on the surface of the furrowing disc 112 3. When the furrowing disc 112 rotates, the soil produced by furrowing is collected inside the furrowing groove 113. As the furrowing disc 112 rotates, the furrowing groove 113 filled with soil rotates from the front end of the furrowing disc 112 to the rear end, and then falls into the furrow under the action of gravity to achieve soil backfilling. In this process, alfalfa seeds also fall into the furrow through the first sowing tube 13. In this way, the soil during furrowing will not accumulate on both sides of the furrow, so that the soil in the furrow can be compacted, thereby ensuring the germination rate of sown alfalfa seeds and improving the quality of alfalfa propagation.

[0040] like Figures 4 to 6As shown, a mixing assembly 12 is provided at the rear of the housing 111, and the mixing assembly 12 includes a limiting slide groove 121 opened on the right side of the housing 111, a turntable 123 is movably connected to the right side of the housing 111, and a rotating shaft 124 is movably connected between the turntable 123 and the housing 111, and the right end of the rotating shaft 124 penetrates and extends to the right side of the turntable 123, and a belt 125 is movably connected between the right side area of ​​the turntable 123 and the connecting shaft 9 on the outside of the rotating shaft 124, and a guide groove 126 is opened at the front end of the turntable 123, and a slide bar 122 is movably connected inside the guide groove 126, and the left end of the slide bar 122 penetrates into the interior of the housing 111 through the limiting slide groove 121;

[0041] The mixing assembly 12 also includes a second sowing tube 127 movably connected to the inside of the first sowing tube 13, a grain inlet 128 is provided at the upper portion of the second sowing tube 127, and a grain discharge port 129 is provided at the lower portion of the second sowing tube 127, a pressure plate 130 is fixedly connected to the lower end of the second sowing tube 127, and the upper end of the second sowing tube 127 extends to the outside of the first sowing tube 13 in an initial state, the front portion of the sliding rod 122 is bent downward, and the front end of the sliding rod 122 is fixedly connected to the pressure plate 130.

[0042] Since alfalfa seeds are very light, when sowing in windy weather, the seeds may be blown away, resulting in a lower survival rate of alfalfa, which is not conducive to the expansion of alfalfa.

[0043] By adopting the above technical solution, when the connecting shaft 9 drives the furrowing disc 112 to rotate, the belt 125 is used to drive the rotating shaft 124 to rotate synchronously, thereby driving the rotating disk 123 to rotate. When the rotating disk 123 rotates, the trajectory of the guide groove 126 on its surface changes, thereby driving the sliding rod 122 in the groove to slide along the limiting sliding groove 121 on the surface of the cover shell 111. When the sliding rod 122 slides down, it will pull the pressure plate 130 to move downward synchronously, thereby using the pressure plate 130 to pull the second sowing tube 127 downward. It should be noted that since the upper end of the second sowing tube 127 extends out of the first sowing tube 13 in the initial state, the alfalfa seeds will The seeds enter the second sowing tube 127 through the valley entrance 128, and then after the second sowing tube 127 moves downward, its upper end shrinks back into the first sowing tube 13 to block the entry of seeds, thereby realizing intermittent sowing. After the pressure plate 130 slides down, it presses down the soil inside the groove 113, causing a concave cavity in the soil, and then the seeds inside the second sowing tube 127 are discharged into the formed concave cavity through the valley discharge port 129. In this way, when the soil is backfilled, it will fall into the ditch together with the sown seeds. The coating of the seeds by the soil increases the weight of the seeds, ensuring that the seeds can be sown smoothly and the quality of alfalfa propagation is guaranteed.

[0044] like Figure 3 and Figure 8 As shown, an ejection assembly 15 is provided inside the grooving disc 112, and the ejection assembly 15 includes grooves 151 equidistantly opened inside the grooving disc 112 and located on the inner side of the grooving groove 113, the grooves 151 are connected to the grooving groove 113, a second spring 152 is movably connected inside the groove 151, the outer end of the second spring 152 is fixedly connected to a push plate 154, and a magnet 153 is fixedly connected to the lower rear end of the cover shell 111; the width of the push plate 154 is adapted to the minimum width of the grooving groove 113, and extension blocks 155 are slidably connected to both sides of the push plate 154, and a third spring 156 is fixedly connected inside the push plate 154 between the two extension blocks 155, and the width of the extension block 155 after being unfolded and combined with the push plate 154 is adapted to the maximum width of the grooving groove 113.

[0045] By adopting the above technical solution, when the groove 113 filled with soil rotates to the rear part of the cover shell 111, the push plate 154 is pulled outward by the magnetic attraction of the magnet 153, so that the soil in the groove 113 is pushed out by the push plate 154, ensuring that the soil can be backfilled smoothly and avoiding the soil from being too wet and sticking to the groove 113. In this process, as the push plate 154 moves, the extension blocks 155 on both sides thereof are also expanded under the elastic force of the third spring 156, ensuring that the push plate 154 and the extension block 155 can be combined to self-adjust according to the width of the groove 113, ensuring that they can always fit with the inner wall of the groove 113, further preventing the soil from getting stuck in the groove 113, and after the soil is discharged, the push plate 154 can be pulled back to its original position under the action of the second spring 152.

[0046] like Figure 4 and Figure 7 As shown, a loose component 14 is provided at the inner rear end of the cover shell 111, and the loose component 14 includes a spiral rod 141 fixedly connected to the inner rear end of the cover shell 111, a sleeve 142 is sleeved on the outside of the spiral rod 141, and a first spring 143 fixedly connected to the spiral rod 141 is provided inside the sleeve 142.

[0047] By adopting the above technical solution, when the push plate 154 pushes the soil out from the inside of the groove 113, the soil contacts the sleeve 142, so that the sleeve 142 is used to poke the soil loose, and the sleeve 142 is displaced along the spiral rod 141 after being subjected to force. During the displacement, the sleeve 142 rotates, thereby further breaking up the pushed out soil, so that the soil and alfalfa seeds are mixed more fully, the gravity of the alfalfa seeds is increased, and the alfalfa seeds can be further guaranteed to be sown smoothly, thereby ensuring the quality of alfalfa propagation.

[0048] A high-purity alfalfa seed propagation method comprises the following steps:

[0049] S1: Seed selection: select high-quality alfalfa seeds as breeding seeds;

[0050] S2: Select the land suitable for alfalfa growth as the land for propagation and perform rotary tillage on the land;

[0051] S3: Sowing, planting alfalfa seeds into the soil and compacting the soil in the planting area.

[0052] Instructions for use: First, the vehicle body 1 is connected to agricultural machinery such as a tractor and a rotary tiller through the connecting frame 3, which is used as a power source. Then, the vehicle body 1 is driven to move under the action of these powers to start sowing. When sowing, alfalfa seeds are first loaded into the seed bin 2, and then the hydraulic cylinder 7 is used to push the lifting frame 8 downward, so that the furrowing disc 112 connected to the lifting frame 8 on the connecting shaft 9 is in contact with the ground. At this time, the motor 10 works to drive the furrowing disc 112 to rotate to realize furrowing the land. Since the furrowing disc 112 is provided with a furrowing groove 113 on the surface, the soil generated by furrowing when the furrowing disc 112 rotates is collected inside the furrowing groove 113, and as the furrowing disc 112 rotates, the furrowing groove 113 filled with soil rotates from the front end of the furrowing disc 112 to the rear end, and then falls into the furrow under the action of gravity to realize the backfilling of the soil. In this process, when the connecting shaft 9 drives the furrowing disc 112 to rotate, the belt 125 is used to drive the rotating shaft 124 to rotate synchronously. , thereby driving the turntable 123 to rotate. When the turntable 123 rotates, the trajectory of the guide groove 126 on its surface changes, thereby driving the slide bar 122 in the groove to slide along the limiting slide groove 121 on the surface of the cover shell 111. When the slide bar 122 slides down, it will pull the pressure plate 130 to move downward synchronously, so that the pressure plate 130 is used to pull the second sowing tube 127 downward. After the pressure plate 130 slides down, it will press down the soil inside the groove 113, so that a concave cavity appears in the soil, and then the seeds inside the second sowing tube 127 will be discharged into the formed concave cavity through the valley discharge port 129. In this way, when the soil is backfilled, it will fall into the groove together with the sown seeds. The coating of the seeds by the soil increases the weight of the seeds, ensuring that the seeds can be sown smoothly, ensuring the quality of alfalfa propagation, and in this way, the soil during planting and ditching will not accumulate on both sides of the groove, so that the soil in the groove can be compacted, thereby ensuring the germination rate of sown alfalfa seeds.

[0053] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-purity alfalfa seed propagation device, comprising a vehicle body (1), characterized in that: The upper end of the vehicle body (1) is fixedly connected to a seed bin (2); both sides of the vehicle body (1) are movably connected to mounting frames (4) near the front and rear ends; a pressure roller (6) is movably connected between the two mounting frames (4) at the rear end; a wheel (5) is movably connected between the two mounting frames (4) at the front end; both upper parts of the two sides of the vehicle body (1) are fixedly connected to hydraulic cylinders (7); the lower ends of the hydraulic cylinders (7) are fixedly connected to lifting frames (8); and a connecting shaft (9) is movably connected between the two lifting frames (8); Backfilling components (11) are equidistantly arranged outside the coupling (9), and the backfilling components (11) are capable of realizing soil backfilling. The backfilling components (11) include a cover shell (111) movably connected to the outside of the coupling (9) at equal intervals, and a furrowing disc (112) is movably connected inside the cover shell (111). The annular side of the furrowing disc (112) is equidistantly provided with furrowing grooves (113), and a first sowing tube (13) is movably connected between the seed bin (2) and the cover shell (111).

2. The high-purity alfalfa seed propagation equipment according to claim 1, characterized in that: A mixing assembly (12) is provided at the rear of the cover shell (111), and the mixing assembly (12) includes a limiting slide groove (121) opened on the right side of the cover shell (111); a turntable (123) is movably connected to the right side of the cover shell (111), and a rotating shaft (124) is movably connected between the turntable (123) and the cover shell (111); the right end of the rotating shaft (124) passes through and extends to the right side of the turntable (123); a belt (125) is movably connected between the outer side of the rotating shaft (124) and the connecting shaft (9) at the right side area of ​​the turntable (123); a guide groove (126) is opened at the front end of the turntable (123), and a slide rod (122) is movably connected inside the guide groove (126); the left end of the slide rod (122) passes through the inside of the cover shell (111) through the limiting slide groove (121).

3. The high-purity alfalfa seed propagation equipment according to claim 2, characterized in that: The mixing assembly (12) further comprises a second sowing tube (127) movably connected to the interior of the first sowing tube (13); a grain inlet (128) is provided at the upper portion of the second sowing tube (127); a grain discharge outlet (129) is provided at the lower portion of the second sowing tube (127); and a pressure plate (130) is fixedly connected to the lower end of the second sowing tube (127).

4. The high-purity alfalfa seed propagation equipment according to claim 3, characterized in that: In the initial state, the upper end of the second sowing tube (127) extends out of the first sowing tube (13), the front portion of the slide rod (122) is bent downward, and the front end of the slide rod (122) is fixedly connected to the pressure plate (130).

5. The high-purity alfalfa seed propagation equipment according to claim 1, characterized in that: An ejector assembly (15) is provided inside the ditching disc (112), and the ejector assembly (15) includes grooves (151) equidistantly opened inside the ditching disc (112) and located inside the ditching groove (113), the grooves (151) are connected to the ditching groove (113), a second spring (152) is movably connected inside the groove (151), an outer end of the second spring (152) is fixedly connected to the push plate (154), and a magnet (153) is fixedly connected to the lower rear end of the cover shell (111).

6. The high-purity alfalfa seed propagation equipment according to claim 5, characterized in that: The width of the push plate (154) is adapted to the minimum width of the open groove (113); extension blocks (155) are slidably connected to both sides of the push plate (154); a third spring (156) is fixedly connected inside the push plate (154) between the two extension blocks (155); and the width of the extension block (155) after being unfolded and combined with the push plate (154) is adapted to the maximum width of the open groove (113).

7. The high-purity alfalfa seed propagation device and method according to claim 1, characterized in that: A loose component (14) is provided at the rear end of the housing (111), and the loose component (14) comprises a spiral rod (141) fixedly connected to the rear end of the housing (111), a sleeve (142) is sleeved on the outside of the spiral rod (141), and a first spring (143) fixedly connected to the spiral rod (141) is provided inside the sleeve (142).

8. The high-purity alfalfa seed propagation equipment according to claim 1, characterized in that: The front end of the vehicle body (1) is fixedly connected to a connecting frame (3), the lower outer portion of the left lifting frame (8) is fixedly connected to a motor (10), and the output shaft of the motor (10) passes through the lifting frame (8) and is fixedly connected to a connecting shaft (9).

9. A method for propagating high-purity alfalfa seeds, characterized in that: The following steps are involved: S1: Seed selection: select high-quality alfalfa seeds as breeding seeds; S2: Select the land suitable for alfalfa growth as the land for propagation and perform rotary tillage on the land; S3: Sowing, planting alfalfa seeds into the soil and compacting the soil in the planting area.

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