An apparatus and method for increasing the germination rate of alfalfa under continuous cropping

Abstract

A device for improving the germination rate of alfalfa under continuous cropping, relating to the field of seedling technology; comprising a shell, with seedling trays fixedly installed on the left and right sides of the shell from bottom to top, and a feed cylinder assembly that can move up, down, forward, and backward between the seedling trays inside the shell; the feed cylinder assembly includes a funnel-shaped feed cylinder, with an openable and closable cylinder cover at the top of the feed cylinder, and a rotatable rotating cylinder sleeved on the lower outer side of the feed cylinder, with a horizontal feed guide pipe integrally connected to the bottom of the rotating cylinder, and a feed dispensing through hole at the bottom of the feed guide pipe; a peeling cylinder is rotatably connected between the two ends of the feed guide cylinder, with a gap between the outer side of the peeling cylinder and the inner side of the feed guide cylinder, and a shaft connected between the two ends of the peeling cylinder, with opposing spiral blades connected on both sides of the shaft located at the inner center of the peeling cylinder, an axial discharge port on the outer side of the peeling cylinder, and uniformly distributed protrusions integrally connected to the outer side of the peeling cylinder; and an air conditioner installed on the outer side of the shell.

Description

Technical Field

[0001] This invention relates to the field of seedling technology, and more specifically, to a device and method for improving the germination rate of alfalfa under continuous cropping. Background Technology

[0002] Alfalfa is usually cultivated and grown using a continuous cropping method, which means planting alfalfa on the same field continuously for one year or several years. This continuous cropping method will cause soil deterioration, decrease soil nutrients, and make it difficult for seeds to absorb nutrients, resulting in a low seed germination rate. In order to solve the problem of low seed germination rate under this continuous cropping method, the seeds can be allowed to germinate new shoots first, and then the seeds can be cultivated and transplanted.

[0003] For example, Chinese invention patent application CN107046860A discloses a shell-breaking device for improving seed germination rate. The device includes a shell-breaking chamber, a motor, a rotating shaft, a sieve plate, a mounting block, and a stirring rod. The shell-breaking chamber is mounted on a support and has an inlet, an outlet, and a waste outlet. A frosted layer is provided on the inner wall of the chamber. The motor is mounted on the chamber, and the rotating shaft is located within the chamber, with one end connected to the motor. The sieve plate is also located within the chamber. The mounting block is mounted on the rotating shaft, and a stirring rod is mounted on the rotating shaft. A frosted sleeve is provided on the stirring rod. The frosted layer on the inner wall and the frosted sleeve on the stirring rod allow the seeds within the chamber to rotate. The frosted layer and sleeve rub against the seed surface, breaking the shell and improving the efficiency and quality of shell breaking, thus increasing the germination rate.

[0004] However, breaking the husk is only one aspect affecting seed germination; temperature and humidity control are also crucial. Therefore, a device for germinating alfalfa that can simultaneously break the husk and control temperature and humidity is proposed to address this issue. Summary of the Invention

[0005] The present invention aims to solve the technical problems described above in the prior art.

[0006] The objectives and effects of this invention are achieved by the following specific technical means:

[0007] A device for improving the germination rate of alfalfa under continuous cropping includes a shell, seedling trays are fixedly installed on the left and right sides of the shell from bottom to top, and a feed cylinder assembly that can move up, down, forward and backward is installed between the seedling trays inside the shell.

[0008] The material cylinder assembly includes a funnel-shaped material cylinder, a cap that can be opened and closed at the top of the material cylinder, a rotating drum that can be rotatably fitted on the lower outer side of the material cylinder, and a horizontal guide pipe integrally connected to the bottom of the rotating drum. The bottom of the guide pipe is provided with a through hole for dispensing material.

[0009] A peeling cylinder is rotatably connected between the two ends of the feed tube. A gap is provided between the outer side of the peeling cylinder and the inner side of the feed tube. A shaft is connected between the two ends of the peeling cylinder. The shaft is located on both sides of the inner center of the peeling cylinder and has oppositely arranged spiral blades. An axial discharge port is provided on the outer side of the peeling cylinder. Evenly distributed protrusions are integrally connected to the outer side of the peeling cylinder. An air conditioner is installed on the outer side of the shell. The exhaust port of the air conditioner is connected to the inside of the shell. Temperature and humidity sensors are installed inside the shell. A gas exchange pipe that can be opened and closed is installed on the top of the shell. The opening and closing of the gas exchange pipe is controlled by a valve. A watering pipe is installed on the top of the shell above the seedling tray.

[0010] Preferably, a cover plate is hinged to the side of the seedling tray away from the center of the shell, and a winch is installed on the outside of the shell at the same height as the seedling tray. The winch rope passes through the shell and is connected to the top of the cover plate.

[0011] Preferably, the upper surface of the seedling tray is provided with a groove 1, and the cover plate is provided with a groove 2 on the side corresponding to the seedling tray. Both groove 2 and groove 1 are provided with through holes 2 inside.

[0012] Preferably, the interior of the second groove is integrally connected with horizontal, vertical, or crisscrossing pressure strips.

[0013] Preferably, a seedling board is placed in the groove, the seedling board is made of sponge, and a partition of sponge material is integrally connected above the seedling board. Multiple sets of partitions are arranged in sequence, the top of the partitions are pointed, and the gaps between the partitions are called gap grooves.

[0014] Preferably, the front side of the shell has an opening corresponding to the seedling tray, and a door panel is hinged to one side of the opening, which can close the opening when folded.

[0015] Preferably, a rotary cylinder is fixedly installed on the outside of the cylinder. The rotary cylinder is selected as a 90-degree rotary cylinder. The output shaft of the rotary cylinder is connected to a synchronous gear. A synchronous gear is also fixed on the outside of the rotating cylinder. The synchronous gears mesh and drive each other. The rotary cylinder can drive the rotating cylinder to rotate 90 degrees through the synchronous gear.

[0016] Preferably, the bottom of the shell is a water chamber, and a drain pipe with a valve is installed on the lower outer side of the shell.

[0017] Preferably, a collar is fitted on the outer side of the guide tube on one side of the through hole. A lead screw is rotatably connected between the two ends of the guide tube. The lead screw thread passes through the collar. A rotary cylinder is fixed on the outer side of the guide tube by a C-shaped frame. The rotary cylinder and the lead screw are connected by a bevel gear. The rotation of the lead screw by the rotary cylinder can adjust the movement of the collar, so that the collar can close the through hole.

[0018] A method to improve the germination rate of alfalfa under continuous cropping:

[0019] Step 1: Select alfalfa seeds by winnowing and remove empty husks;

[0020] Step 2: Place the alfalfa seeds into the feed hopper and start the servo motor to drive the shelling hopper to rotate and shell the seeds;

[0021] Step 3: The rotary cylinder drives the lead screw to rotate, and the position of the collar is adjusted so that the shelled alfalfa seeds are discharged from the through hole 1.

[0022] Step 4: Distribute alfalfa seeds evenly above the seedling trays using the feed tube, and let the seeds falling from the top of the tray slide into the gap grooves.

[0023] Step 5: Start the winch to release the rope, close the cover, start the valve and sprinkler pipe to spray water on the seedling trays, and then turn on the air conditioner to control the temperature at around 100 degrees Celsius.

[0024] Step Six: By controlling the winding rope with a winch, the pressure of the cover plate on the seedling board can be controlled, thereby controlling the moisture content of the seedling board and keeping the seeds at a moisture content of 50%. This allows the seeds to germinate in a comfortable environment, greatly improving the germination rate. Beneficial effects

[0025] 1. This device for improving the germination rate of alfalfa under continuous cropping is equipped with a seedling tray. The sponge seedling board can hold water. After the seeds fall to the top of the partition, they slide into the gap groove. The internal temperature of the shell is adjusted to a suitable temperature. The sponge seedling board allows the seeds to germinate in a comfortable environment. The folding angle of the seedling cover is controlled by a winch and a rope to compress the seedling board, thereby controlling the moisture content of the seedling board. The pressure strip is used to press out water. In addition, when the cover is closed, it also achieves the functions of heat preservation and protection.

[0026] 2. This device for improving the germination rate of alfalfa under continuous cropping is equipped with a feed guide tube. After the feed guide tube rotates 90 degrees, it is positioned between the seedling trays. When the stepper motor drives the lead screw to rotate, the feed guide tube moves up or down with the slider, which can spread and sow the seedlings at different heights to meet the needs of multi-layer seedling cultivation.

[0027] 3. This device for improving the germination rate of alfalfa under continuous cropping is equipped with a shelling cylinder. After the servo motor is started, it drives the shelling cylinder to rotate. The seeds are evenly transported to both ends of the feed pipe through the spiral blades. At the same time, the protrusions on the outside of the shelling cylinder crush and shell the alfalfa seeds, thereby improving the germination rate. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the device for improving the germination rate of alfalfa under continuous cropping according to the present invention.

[0029] Figure 2 For the present invention Figure 1 Enlarged diagram of point A in the middle.

[0030] Figure 3 This is a schematic diagram of the barrel assembly of the present invention.

[0031] Figure 4 This is a schematic diagram of the bottom structure of the feed tube of the present invention.

[0032] Figure 5 This is a schematic diagram of the peeling cylinder structure of the present invention.

[0033] Figure 6 This is a schematic diagram of the lead screw three-drive system of the present invention.

[0034] Figure 7 This is a schematic diagram of the seedling tray structure of the present invention.

[0035] Figure 8 This is a schematic diagram of the seedling board structure of the present invention.

[0036] Figure 1-8 In the middle: shell 1, seedling tray 2, groove one 201, cover plate 3, groove two 301, pressure strip 302, slide groove 4, lead screw one 5, material cylinder assembly 6, material cylinder 601, rotating cylinder 602, guide pipe 603, sprinkler pipe 7, air conditioner 8, temperature sensor 9, gas exchange pipe 10, drain pipe 11, winch 12, rope winding 13, slider 14, lead screw two 15, slide bar 16, cylinder cover 17, through hole one 18, collar 19, lead screw three 20, rotary cylinder 21, shelling cylinder 22, shaft 23, spiral blade 24, discharge port 25, protrusion 26, through hole two 27, seedling board 28, partition plate 29, gap groove 30. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] Reference Figure 1-8A device for improving the germination rate of alfalfa under continuous cropping includes a housing 1. Seedling trays 2 are fixedly installed sequentially from bottom to top on the left and right sides inside the housing 1. The seedling trays 2 are fixedly connected to the rear wall inside the housing 1. An opening is provided on the front side of the housing 1 corresponding to the seedling trays 2. A door panel is hinged to one side of the opening, and the door panel can be folded to close the opening. Vertical grooves 4 are provided at the center of both the front and rear sides inside the housing 1. A lead screw 5 is rotatably connected between the upper and lower ends of the groove 4. A stepper motor is installed outside the housing 1 to drive the lead screw 5 to rotate forward and backward. A slider is slidably arranged on the outer side of the groove 4. 14. The slider 14 is convex, and the protruding part of the slider 14 is slidably disposed in the slide groove 4. At the same time, the protruding part of the slider 14 is threadedly sleeved on the outside of the lead screw 5. When the stepper motor is started, the lead screw 5 is rotated in the same direction, which can drive the slider 14 to move up or down along the slide groove 4. The sliders 14 are connected by a slide rod 16, and the sliders 14 are rotatably connected by a lead screw 15. The slide rod 16 and the lead screw 15 are arranged parallel to each other. The slider 14 is equipped with a stepper motor that drives the lead screw 15 to rotate forward and backward. The material cylinder assembly 6 is installed between the slide rod 16 and the lead screw 15.

[0039] The material cylinder assembly 6 includes a material cylinder 601, which is funnel-shaped. A cylinder cover 17 is inserted and pulled onto the top of the material cylinder 601. A rotating cylinder 602 is sleeved on the lower outer side of the material cylinder 601. The rotating cylinder 602 can rotate on the lower outer side of the material cylinder 601. A horizontal guide pipe 603 is integrally connected to the bottom of the rotating cylinder 602. The bottom of the guide pipe 603 is provided with a through hole 18 for sprinkling material.

[0040] The material cylinder 601 has lifting lugs on both the left and right sides. One lifting lug is sleeved on the outside of the slide rod 16, and the other lifting lug is threaded on the outside of the lead screw 15. After the stepper motor is started, it drives the lead screw 15 to rotate, which in turn drives the material cylinder 601 to move along the slide rod 16.

[0041] A rotary cylinder is fixedly installed on the outside of the material cylinder 601. The rotary cylinder is a 90-degree rotary cylinder. The output shaft of the rotary cylinder is connected to a synchronous gear. A synchronous gear is also fixed on the outside of the rotating cylinder 602. The synchronous gears mesh and drive each other. The rotary cylinder can drive the rotating cylinder 602 to rotate 90 degrees through the synchronous gear, which in turn drives the guide tube 603 to rotate 90 degrees. After rotation, the guide tube 603 can be positioned above the left and right seedling trays 2 inside the housing 1. At the same time, the through hole 18 is set to correspond to the seedling tray 2, which can drop the seeds from the material cylinder 601 into the seedling tray 2. The material cylinder 601 moves along the slide rod 16 to evenly spread the seeds above the seedling tray 2. It should be understood that when the guide tube 603 rotates 90 degrees, the guide tube 603 is positioned between the seedling trays 2. After the stepper motor drives the lead screw 5 to rotate, the guide tube 603 moves up or down with the slider 14, which can spread and sow seeds on seedling trays 2 at different heights to meet the needs of multi-layer seedling cultivation.

[0042] In this embodiment, an air conditioner 8 is installed on the outside of the housing 1, and the exhaust port of the air conditioner 8 is connected to the inside of the housing 1. A temperature sensor 9 and a humidity sensor are installed inside the housing 1. A gas exchange pipe 10 that can be opened and closed is installed on the top of the housing 1. The gas exchange pipe 10 is controlled to open and close by a valve. An automatic valve can be selected to facilitate the control of the opening and closing of the gas exchange pipe 10. The temperature of the housing 1 can be regulated by the air conditioner 8. A water spraying pipe 7 is installed on the top of the housing 1 above the seedling tray 2. The water spraying pipe 7 is connected to an external water source. The water spraying pipe 7 is controlled by an automatic valve to spray water. This allows the internal temperature and humidity of the housing 1 to be reasonably controlled.

[0043] In this embodiment, the bottom of the housing 1 is set as a water chamber, and a drain pipe 11 is installed on the lower outer side of the housing 1. The drain pipe 11 is equipped with a valve to facilitate the control of water discharge from the housing 1.

[0044] In this embodiment, a collar 19 is sleeved on the outer side of the guide tube 603 on one side of the through hole 18. A lead screw 20 is rotatably connected between the two ends of the guide tube 603. The lead screw 20 is threaded through the collar 19. A rotary cylinder 21 is fixed on the outer side of the guide tube 603 by a C-shaped frame. The rotary cylinder 21 and the lead screw 20 are connected by a bevel gear transmission. The rotation of the lead screw 20 driven by the rotary cylinder 21 can adjust the movement of the collar 19, so that the collar 19 can close the through hole 18. The size of the through hole 18 can also be adjusted by the movement of the collar 19.

[0045] A shelling cylinder 22 is rotatably connected between the two ends of the inner side of the feed tube 603. A gap of 0.3-0.5 cm is provided between the outer side of the shelling cylinder 22 and the inner side of the feed tube 603. A shaft 23 is connected between the two ends of the shelling cylinder 22, extending to the outer sides of both ends of the shelling cylinder 22. The shelling cylinder 22 is rotatably connected to the inside of the feed tube 603 via the shaft 23. Oppositely arranged spiral blades 24 are connected to both sides of the shaft 23 located at the inner center of the shelling cylinder 22. The outer side of the shelling cylinder 22 is provided with an axial discharge port 25. Multiple protrusions 26 are integrally connected to the outer side of the shelling cylinder 22. The protrusions 26 are evenly distributed. A servo motor that drives the shelling cylinder 22 to rotate is installed on the outer side of the guide pipe 603. After the servo motor is started, it drives the shelling cylinder 22 to rotate. The seeds are evenly transported to both ends of the guide pipe 603 through the spiral blades 24. At the same time, the protrusions 26 on the outside of the shelling cylinder 22 crush and shell the alfalfa seeds. Finally, the seeds are sprinkled out through the through hole 18 onto the seedling tray 2.

[0046] In this embodiment, a cover plate 3 is hinged to the side of the seedling tray 2 away from the center of the shell 1. A winch 12 is installed on the outer side of the shell 1 at the same height as the seedling tray 2. The winding rope 13 of the winch 12 passes through the shell 1 and is connected to the top of the cover plate 3. The opening and closing of the cover plate 3 is controlled by winding or releasing the winding rope 13 through the winch 12.

[0047] The upper surface of the seedling tray 2 is provided with a groove 201, and the cover plate 3 is provided with a groove 301 on one side of the seedling tray 2. Both the groove 301 and the groove 201 are provided with through holes 27. The groove 301 is integrally connected with horizontal, vertical or crisscrossing pressure strips 302. The groove 201 is filled with a seedling board 28, which is made of sponge. The top of the seedling board 28 is integrally connected with a partition 29 of sponge material. Multiple sets of partitions 29 are arranged in sequence. The top of the partitions 29 is pointed, and the gap between the partitions 29 is set as a gap groove 30.

[0048] It is important to understand that the through hole 27 allows water from the sprinkler pipe 7 to enter the multi-layered seedling tray 2. Simultaneously, the sponge seedling board 28 can hold water. After seeds fall onto the top of the partition 29, they slide into the gap groove 30, adjusting the internal temperature of the shell 1 to a suitable level. The sponge seedling board 28 allows the seeds to germinate in a comfortable environment. The cover 3 is made of solid wood, or other alternative materials. Its main function is to compress the sponge seedling board 28 when closed. Secondly, the cover 3 also provides insulation and protection when closed. The folding angle of the cover 3 is controlled by the winch 12 and the rope 13 to compress the seedling board 28, thereby controlling its moisture content. The pressure strip 302 is used to press out water, and the groove 301 provides sufficient space for the seeds to germinate.

[0049] In this embodiment, pull ropes are connected to both ends of the seedling board 28 to facilitate the removal of the seedling board 28 from the groove 201.

[0050] A method to improve the germination rate of alfalfa under continuous cropping:

[0051] Step 1: Select alfalfa seeds by winnowing and remove empty husks;

[0052] Step 2: Place alfalfa seeds into the feed hopper 601 and start the servo motor to drive the shelling hopper 22 to rotate and shell the seeds;

[0053] Step 3: Rotate the lead screw 20 by rotating the rotary cylinder 21, adjust the position of the collar 19, and the shelled alfalfa seeds are discharged from the through hole 18.

[0054] Step 4: The alfalfa seeds are evenly distributed above the seedling tray 2 through the feed tube 603, and the seeds falling on the top of the partition 29 slide into the gap groove 30.

[0055] Step 5: Start the winch 12 to release the winding rope 13, close the cover plate 3, start the valve and water spray pipe 7 to spray water on the seedling tray 2, and then start the air conditioner 8 to control the temperature at about 20 degrees Celsius.

[0056] Step Six: By controlling the winding rope 13 through the winch 12, the cover plate 3 can be controlled to squeeze the seedling board 28, thereby controlling the moisture content of the seedling board 28, so that the seeds maintain a moisture content of 50%, allowing the seeds to germinate in a comfortable environment, and greatly improving the germination rate.

Claims

1. A device for increasing the germination rate of alfalfa in successive cropping, comprising a housing (1), characterized in that, The inside left and right sides of the shell (1) are sequentially fixed with seedling trays (2) from bottom to top, and a material cylinder assembly (6) capable of moving up, down, front and back is installed between the seedling trays (2) in the shell (1); The material cylinder assembly (6) comprises a funnel-shaped material cylinder (601), the top of the material cylinder (601) is provided with a cylinder cover (17) capable of being opened and closed, the outer side of the lower end of the material cylinder (601) is sleeved with a rotating drum (602), the bottom of the rotating drum (602) is integrally connected with a horizontal material guide pipe (603), and the bottom of the material guide pipe (603) is provided with a through hole (18) for scattering material; The inside of the material guide pipe (603) is rotatably connected with a husking cylinder (22) between the two ends, a gap is provided between the outer side of the husking cylinder (22) and the inner side of the material guide pipe (603), shaft rods (23) are connected between the two ends of the husking cylinder (22), opposite spiral blades (24) are connected on the two sides of the inner center of the husking cylinder (22), an axial discharge port (25) is arranged on the outer side of the husking cylinder (22), the outer side of the husking cylinder (22) is integrally connected with uniformly distributed protrusions (26), an air conditioner (8) is installed on the outer side of the shell (1), the air outlet of the air conditioner (8) is connected to the inside of the shell (1), temperature sensors (9) and humidity sensors are installed in the inside of the shell (1), an air exchange pipe (10) capable of being opened and closed is installed on the top of the shell (1), the air exchange pipe (10) is controlled to be opened and closed by a valve, a watering pipe (7) is installed on the top of the shell (1) above the seedling trays (2), a cover plate (3) is hingedly connected to one side of the seedling trays (2) away from the center of the shell (1), winches (12) are installed on the outer side of the shell (1) at the same height as the seedling trays (2), the rope (13) of the winch (12) penetrates the shell (1) and is connected to the upper side of the cover plate (3), a recess one (201) is arranged on the upper end surface of the seedling tray (2), a recess two (301) is arranged on one side of the seedling tray (2) corresponding to the cover plate (3), through holes two (27) are arranged in the recess two (301) and the recess one (201), a seedling plate (28) is placed in the recess one (201), the seedling plate (28) is made of sponge, a partition plate (29) made of sponge material is integrally connected to the upper side of the seedling plate (28), a plurality of groups of partition plates (29) are sequentially arranged, the top pointed surface of the partition plate (29), the gap between the partition plates (29) is a gap groove (30), a rotating cylinder is fixedly installed on the outer side of the material cylinder (601), the rotating cylinder is a 90-degree rotating cylinder, a synchronous gear is connected to the output shaft of the rotating cylinder, a synchronous gear is also fixedly arranged on the outer side of the rotating drum (602), the synchronous gears are meshed and transmitted, and the rotating cylinder can drive the rotating drum (602) to rotate 90 degrees through the synchronous gears.

2. The apparatus for increasing the germination rate of alfalfa in a successive cropping system according to claim 1, wherein The recess two (301) is integrally connected with a horizontal or vertical or vertical and horizontal pressure bar (302).

3. The apparatus for increasing the germination rate of alfalfa in a successive cropping system according to claim 1, wherein The front side of the shell (1) is provided with an opening corresponding to the seedling tray (2), and a door plate is hinged on one side of the opening.

4. The apparatus for increasing the germination rate of alfalfa in a successive cropping system according to claim 1, wherein The bottom of the shell (1) is provided with a water storage chamber, and a drain pipe (11) with a valve is installed below the outer side of the shell (1).

5. The apparatus for increasing the germination rate of alfalfa in a successive cropping system according to claim 1, wherein The outer side of the material guide pipe (603) is sleeved with a sleeve ring (19) on one side of the through hole (18), and a screw rod three (20) is rotatably connected between the two ends of the material guide pipe (603). The screw rod three (20) is threaded through the sleeve ring (19), and a rotary air cylinder (21) is fixed outside the material guide pipe (603) through a "U-shaped frame". The rotary air cylinder (21) is in transmission connection with the screw rod three (20) through a bevel gear. The rotation of the screw rod three (20) driven by the rotary air cylinder (21) can adjust the movement of the sleeve ring (19), so that the sleeve ring (19) can close the through hole (18).

6. The use method of the device for improving the germination rate of alfalfa in continuous cropping according to claim 1, comprising the following steps: Step one: select alfalfa seeds by air separation method to remove empty husks; Step two: put the alfalfa seeds into the barrel (601), and start the servo motor to drive the shelling cylinder (22) to rotate and shell; Step three: adjust the position of the sleeve ring (19) by rotating the screw rod three (20) driven by the rotary air cylinder (21), and the shelled alfalfa seeds are discharged from the through hole (18); Step four: uniformly arrange the alfalfa seeds above the seedling tray (2) through the material guide pipe (603), and the seeds on the top of the partition plate (29) slide into the gap groove (30); Step five: start the winch (12) to release the winding rope (13), close the cover plate (3), start the valve sprinkler (7) to sprinkle water on the seedling tray (2), and then start the air conditioner (8) to control the temperature at about 20 degrees Celsius; Step six: control the winding rope (13) by the winch (12) to control the pressing of the cover plate (3) on the seedling plate (28), and then control the water content of the seedling plate (28) to keep the water content of the seeds at 50%, so that the seeds can germinate in a comfortable environment, and the germination rate is greatly improved.

Images