A constant-temperature culture device for azalea and a culture method thereof

Abstract

The application belongs to the technical field of flower cultivation, and discloses a constant-temperature culture device for tulipa gesneriana and a culture method thereof. The constant-temperature culture device for tulipa gesneriana comprises a box body, double-layer box doors are mounted on the side of the box body, a plurality of supporting rods are mounted in the inner cavity of the box body, and a lattice plate is fixed to the side wall of each supporting rod. The cooperation of the structures such as the air diffuser plate, the ventilation pipe, the limiting rod and the air inlet joint improves the air exhaust uniformity and stability. When the temperature is controlled and adjusted, the air inlet hole groove on the air inlet joint is exposed, the air outside the air diffuser plate is introduced into the ventilation pipe, the air is uniformly exhausted from the air outlet on the ventilation pipe, and there are a plurality of equidistant air outlet points at the bottom of each layer of bulbs, so that the air exhaust uniformity and stability are effectively improved. When the temperature needs to be changed, the plurality of air outlets in the box body can synchronously blow out hot air or cold air, the response rate is greatly improved, and the flower bud differentiation rate is improved.

Description

Technical Field

[0001] This invention belongs to the field of flower cultivation technology, specifically a constant temperature cultivation device for amaryllis and its cultivation method. Background Technology

[0002] Amaryllis, also known as the solitary hibiscus or big-headed orchid, is a bulbous perennial herbaceous flowering plant belonging to the Amaryllidaceae family. Its bulbs resemble onions, and its flowers are large, vibrant, and have a long flowering period. It is a common ornamental plant, suitable for potted plants, garden planting, or use as cut flowers. Amaryllis enters dormancy in the low temperatures of winter, stopping vegetative growth and accumulating nutrients for flower bud differentiation. Therefore, cultivating amaryllis requires constant temperature treatment to simulate natural low temperatures, activate endogenous hormones in the bulbs, such as gibberellins, and induce flower bud formation. Through constant temperature treatment, the flowering period can be precisely controlled, improving the quality and quantity of flowers.

[0003] A prior art patent application (CN120380951A) discloses a high-efficiency amaryllis seedling cultivation device and its optimized cultivation method, comprising a box body. A motor is installed on the inner wall of the box body. A sprocket is fixedly mounted on a fixed plate through the output end of the motor. A partition is fixedly mounted on the bottom end of the fixed plate. A chain is connected to the toothed end of the sprocket, and a second sprocket is connected to one end of the chain. A rotating shaft is fixedly mounted in the middle of the second sprocket, and one end of the rotating shaft is rotatably connected to one side of the fixed plate. A guide rail is provided on the side wall of the fixed plate. A cultivation box is mounted on one side of the chain via several fixed rods. Through the coordinated operation of the motor, sprocket, chain, cultivation box, and guiding and stabilizing structure, amaryllis seedlings are dynamically and stably cultivated within the box body. The cultivation box always maintains a stable state with its opening and drainage holes facing upwards, which is beneficial for the healthy growth of the seedlings and solves the problem of unstable cultivation containers in traditional dynamic cultivation.

[0004] Although the aforementioned devices improve the management of light, ventilation, and water for amaryllis seedlings after germination, they do not optimize the process of flower bud differentiation. Before flower bud differentiation, amaryllis bulbs need to undergo constant-temperature dormancy treatment. At this time, the temperature control inside the box needs to be precise and have a fast response rate. To simulate the natural environment, hot or cold air blowing is usually used for temperature control. However, the seal of the cultivation box is usually installed on the side wall, which causes the bulbs closer to the air vent to be directly blown by the wind, resulting in rapid temperature rise or fall, and accelerated water loss. Conversely, the temperature of the bulbs farther from the seal is adjusted more slowly, resulting in uneven temperature inside the box. It is difficult to ensure the effective activation of endogenous hormones in the bulbs and reduce the success rate of cultivation. Summary of the Invention

[0005] To address the problem mentioned in the background art that uneven temperature inside the container makes it difficult to ensure the effective activation of endogenous hormones in the bulbs, thus reducing the success rate of cultivation, this invention provides a constant temperature cultivation device for amaryllis and its cultivation method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a constant-temperature culture device for amaryllis, comprising a box body, a double-layered door installed on the side of the box body, a plurality of support rods installed in the inner cavity of the box body, and a grid plate fixedly connected to the side wall of each support rod, and further comprising:

[0007] A uniform temperature distribution mechanism is located inside the cavity of the housing;

[0008] A positioning and anti-detachment mechanism is located at the edge of the inner cavity of the housing;

[0009] The uniform temperature distribution mechanism and the positioning and anti-detachment mechanism are each provided in a certain number;

[0010] The uniform temperature distribution mechanism includes a diffuser plate fixed to the inner cavity of the box near the air outlet. There is a diffuser gap between the diffuser plate and the box around its perimeter. Several air inlet connectors are evenly distributed on the diffuser plate, and the air inlet connectors are elastically connected to the diffuser plate.

[0011] Preferably, a plurality of ventilation pipes are fixedly connected at equal intervals at the bottom of the grille, and a plurality of exhaust ports are evenly opened on the side wall of the ventilation pipes. One end of the air inlet connector abuts against the end of the ventilation pipe, and the other end of the air inlet connector is fixedly connected with a cover. A plurality of support plates are fixedly connected to the side wall of the air diffuser, and the grille and the support plates abut against each other.

[0012] Preferably, the air inlet connector has a ring of air inlet slots on the side near the cover, and a retaining ring is snapped into the side wall of the cover, the retaining ring being fixed to the air diffuser plate.

[0013] Preferably, a plurality of outer air ducts are fixedly connected to the air diffuser plate, and the number of outer air ducts is the same as that of the air inlet connector. An inner air duct is rotatably connected to the inner surface of the outer air duct, and a plurality of mutually fitting air leakage holes are evenly opened on the surfaces of the outer air duct and the inner air duct.

[0014] Preferably, a pair of arc-shaped plates are fixed to both sides of the inner vent plate, and each arc-shaped plate is provided with an oblique sliding groove.

[0015] Preferably, each of the arc-shaped plates is slidably connected to a slider via an oblique groove, and the slider is fixedly attached to the cover.

[0016] Preferably, the positioning and anti-detachment mechanism includes a pair of U-shaped clamping plates fixed to both ends of the support rod, and each U-shaped clamping plate has an L-shaped clamping plate movably clamped to its outer wall, and the side walls of the L-shaped clamping plates are fixed to the box body.

[0017] Preferably, each edge of the L-shaped card plate is rotatably connected to a pair of limiting rods, and each pair of limiting rods is elastically connected to each other, with the outer walls of the limiting rods abutting against the U-shaped card plate.

[0018] Preferably, each of the L-shaped plates has a pair of arc grooves in its inner cavity, and the lower end of each limiting rod is fixedly connected to a sliding column, which is slidably connected to the arc groove.

[0019] This application also proposes a method for constant-temperature culture of amaryllis, the method being as follows:

[0020] S1. Pre-treat the bulbs of amaryllis to induce constant temperature dormancy. First, select healthy bulbs, peel off the outer dead skin, soak them in alcohol for one minute, disinfect them with mercuric chloride solution for ten minutes, and then rinse them five times with sterile water. Next, insert the bulbs into the placement tray, select the appropriate spacing, and use the positioning and anti-detachment mechanism to lock the support rod and the grid plate. Place the placement tray containing the bulbs on the grid plate, close the double-layer box door, start the temperature control module, set the relatively low temperature, and then use the uniform temperature distribution mechanism to evenly distribute the hot and cold air blown out of the box. Maintain constant temperature mode for thirty to forty days. Low temperature induces the accumulation of endogenous hormones in the bulbs and completes flower bud differentiation.

[0021] S2. After the low temperature is over, open the double-layer box door and use a cutting knife to make three to four shallow cuts along the surface of the bulb to break the cuticle. Then spray gibberellin solution on the cuts to promote the breaking of dormancy.

[0022] S3. After dormancy is broken, transplant the bulbs into the culture medium. The substrate should be a mixture of leaf mold, perlite and vermiculite, with the addition of well-rotted sheep manure. After adjusting the pH value, place the bulbs in the culture medium, burying them to two-thirds of their height. Then, place the bulbs and culture medium in the box for further cultivation, adjusting the spacing between each layer and locking them in place using the positioning and anti-detachment mechanism. Next, turn on the temperature control module and use the uniform temperature distribution mechanism to gradually increase the temperature from 5 degrees to 15 degrees within three days, then stabilize it at 20 degrees, while maintaining the humidity in the range of 70% to 85% to facilitate environmental transition. Transplant the bulbs after the flower buds have grown to a certain height.

[0023] S4. Shade the plant during the initial transplanting stage, and simulate natural diffused light after seven days. Spray nutrient solution three days after planting, and add potassium fertilizer starting from the seventh day, once a week. The flower stalk will emerge 20 to 25 days after transplanting, and the flowering period will last 15 to 20 days. After the flowers wither, cut off the flower stalks and apply a balanced nitrogen, phosphorus and potassium fertilizer to rejuvenate the bulb.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] This invention improves the uniformity and stability of exhaust air by incorporating a combination of components such as a diffuser plate, ventilation ducts, limiting rods, and air inlet connectors. During temperature control, the air inlet slots on the air inlet connector are exposed, allowing air from outside the diffuser plate to enter the ventilation ducts. The exhaust vents on the ventilation ducts then evenly distribute the air, ensuring that each layer of bulbs has several equidistant air outlets at its base, effectively enhancing the uniformity and stability of exhaust air. Furthermore, when a temperature change is needed, several exhaust vents within the chamber can simultaneously blow out hot or cold air, significantly increasing the response rate and thus improving the flower bud differentiation rate.

[0026] This invention further enhances the air intake effect by combining structures such as inclined slide grooves, outer air intake plates, and inner air intake plates. During installation, the ventilation pipe squeezes the air intake joint to move outward, simultaneously driving the slider to squeeze within the inclined slide groove. This causes the arc-shaped plate to rotate the inner air intake plate, aligning the complete inner air intake plate with the air leakage hole of the outer air intake plate. The outer and inner air intake plates together form an airtight air-gathering funnel, increasing the air intake rate. When the spacing needs to be adjusted, the ventilation pipe cover is pulled out and the retaining ring is used to seal the interface. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram showing the structural fit between the support rod and the grating plate of the present invention;

[0029] Figure 3 For the present invention Figure 2 A magnified view of the structure at point A in the middle;

[0030] Figure 4 This is a schematic diagram showing the structural fit between the sliding column and the L-shaped card plate of the present invention;

[0031] Figure 5 This is a schematic diagram showing the structural fit between the limiting rod and the sliding column of the present invention;

[0032] Figure 6 This is a schematic diagram of the structural relationship of the present invention from the front view;

[0033] Figure 7 This is a top view of the cross-sectional structure of the present invention;

[0034] Figure 8 This is a schematic diagram showing the structural fit between the wind deflector and the ventilation pipe of the present invention;

[0035] Figure 9 This is a schematic diagram showing the structural fit between the outer windshield and the wind deflector of the present invention;

[0036] Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure at point B in the middle;

[0037] Figure 11 This is a schematic diagram showing the structural fit between the outer and inner vent panels of the present invention.

[0038] Figure 12 This is a schematic diagram showing the structural fit between the cap and the slider of the present invention;

[0039] Figure 13 This is a schematic diagram showing the structural fit between the inner vent plate and the arc-shaped plate of the present invention.

[0040] In the picture:

[0041] 1. Enclosure; 2. Double-layer enclosure door; 3. Support rod; 4. Grille plate; 5. Uniform temperature distribution mechanism; 501. Air diffuser; 502. Air inlet connector; 503. Support plate; 504. Outer vent plate; 505. Ventilation duct; 506. Cover; 507. Inner vent plate; 508. Arc plate; 509. Sliding block; 5010. Retaining ring; 5011. Slanted slide groove; 6. Positioning and anti-detachment mechanism; 601. U-shaped clamping plate; 602. L-shaped clamping plate; 603. Limiting rod; 604. Arc groove; 605. Sliding column. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1 to 13 As shown, the present invention provides a constant temperature culture device for amaryllis, including a box body 1, a double-layer box door 2 installed on the side of the box body 1, a plurality of support rods 3 installed in the inner cavity of the box body 1, and a grid plate 4 fixedly connected to the side wall of each support rod 3, and further including:

[0044] Uniform temperature distribution mechanism 5, which is located inside the cavity of the box 1;

[0045] Positioning and anti-detachment mechanism 6 is located at the edge of the inner cavity of the box body 1;

[0046] Among them, the uniform temperature distribution mechanism 5 and the positioning and anti-detachment mechanism 6 are each provided in a certain number;

[0047] The uniform temperature distribution mechanism 5 includes a diffuser plate 501 fixed to the inner cavity of the box 1 near the air outlet. There is a diffuser gap between the diffuser plate 501 and the box 1 around its perimeter. Several air inlet connectors 502 are evenly distributed on the diffuser plate 501, and the air inlet connectors 502 are elastically connected to the diffuser plate 501.

[0048] The above solution is adopted: the double-layer box door 2 includes an inner glass door and an outer insulated box door, so that staff can open the insulated box door at any time, observe the germination status through the glass door, and record data.

[0049] like Figures 5 to 8 and Figure 13 As shown, multiple ventilation pipes 505 are fixedly connected to the bottom of the grille plate 4 at equal intervals. Multiple exhaust ports are evenly opened on the side wall of the ventilation pipes 505. One end of the air inlet connector 502 abuts against the end of the ventilation pipe 505. The other end of the air inlet connector 502 is fixedly connected to a cover 506. Several support plates 503 are fixedly connected to the side wall of the air diffuser plate 501, and the grille plate 4 and the support plates 503 abut against each other. An air inlet slot is opened on the side of the air inlet connector 502 near the cover 506. A retaining ring 5010 is snapped into the side wall of the cover 506 and fixedly connected to the air diffuser plate 501.

[0050] like Figures 10 to 13 As shown, several outer air ducts 504 are fixedly connected to the air diffuser 501, and the number of outer air ducts 504 is the same as that of the air inlet connector 502. An inner air duct 507 is rotatably connected to the inner surface of the outer air duct 504. Several mutually fitting air leakage holes are evenly opened on the surfaces of the outer air duct 504 and the inner air duct 507. A pair of arc-shaped plates 508 are fixedly connected to both sides of the inner air duct 507. An inclined sliding groove 5011 is opened on each of the arc-shaped plates 508. A slider 509 is slidably connected to each arc-shaped plate 508 through the inclined sliding groove 5011. The sliders 509 are fixedly connected to the cover 506.

[0051] The above solution employs the following method: Because there are airflow gaps between the diffuser plate 501 and the housing 1, the air blown from the housing 1 is first blocked by the diffuser plate 501, and then blown out along the gaps between the diffuser plate 501 and the housing 1, allowing air to exit from all sides of the housing 1's interior simultaneously, preventing one side from blowing directly onto the bulbs. Simultaneously, the ventilation pipe 505 presses against the air inlet connector 502, pushing the cover 506 outwards, exposing the air inlet slot on the air inlet connector 502, allowing air to enter the ventilation pipe 505. The air is then evenly discharged through the exhaust ports on the ventilation pipe 505, ensuring that each layer of bulbs has several equidistantly arranged air outlets at its bottom, effectively improving the uniformity and stability of the exhaust.

[0052] like Figures 2 to 5 As shown, the positioning and anti-detachment mechanism 6 includes a pair of U-shaped clamping plates 601 fixed to both ends of the support rod 3. The outer walls of the U-shaped clamping plates 601 are movably clamped to L-shaped clamping plates 602. The side walls of the L-shaped clamping plates 602 are fixed to the box body 1. The edges of the L-shaped clamping plates 602 are rotatably connected to a pair of limiting rods 603, and each pair of limiting rods 603 is elastically connected to each other. The outer walls of the limiting rods 603 abut against the U-shaped clamping plates 601.

[0053] like Figure 4As shown, each L-shaped plate 602 has a pair of arc grooves 604 in its inner cavity, and the lower end of the limiting rod 603 is fixedly connected to a sliding column 605, which is slidably connected in the arc groove 604.

[0054] Using the above solution: When it is necessary to remove the grid plate 4 and change the layer spacing, the staff can squeeze the limiting rod 603 to retract into the inner cavity of the L-shaped card plate 602, so that the U-shaped card plate 601 can slide out on the L-shaped card plate 602, thereby releasing the limit. The operation is simple.

[0055] This application also proposes a method for constant-temperature culture of amaryllis, the method of which is as follows:

[0056] S1. Pre-treat the bulbs of amaryllis to induce constant temperature dormancy. First, select healthy bulbs, peel off the outer dead skin, soak them in alcohol for one minute, disinfect them with mercuric chloride solution for ten minutes, and then rinse them five times with sterile water. Next, insert the bulbs into the placement tray, select the appropriate spacing, and use the positioning and anti-detachment mechanism 6 to lock the support rod 3 and the grid plate 4. Place the placement tray containing the bulbs on the grid plate 4, close the double-layer box door 2, start the temperature control module, set the relatively low temperature, and then use the uniform temperature distribution mechanism 5 to evenly distribute the hot and cold air blown out of the box 1. Maintain constant temperature mode for thirty to forty days. Low temperature induces the accumulation of endogenous hormones in the bulbs and completes flower bud differentiation.

[0057] S2. After the low temperature is over, open the double-layer box door 2 and use a cutting knife to make three to four shallow cuts along the surface of the bulb to break the cuticle. Then spray gibberellin solution on the cuts to promote the breaking of dormancy.

[0058] S3. After dormancy is broken, transplant the bulbs into the culture medium. The substrate should be a mixture of leaf mold, perlite and vermiculite, with the addition of well-rotted sheep manure. After adjusting the pH value, place the bulbs in the culture medium, burying them to two-thirds of their height. Then, place the bulbs and culture medium in box 1 for cultivation. The spacing between each layer needs to be adjusted and locked by the positioning and anti-detachment mechanism 6. Next, turn on the temperature control module and use the uniform temperature distribution mechanism 5 to gradually increase the temperature from 5 degrees to 15 degrees within three days. Then, after reaching 20 degrees, maintain the temperature and keep it stable. Keep the humidity in the range of 70% to 85% to facilitate environmental transition. Transplant the bulbs after the flower buds have grown to a certain height.

[0059] S4. Shade the plant during the initial transplanting stage, and simulate natural diffused light after seven days. Spray nutrient solution three days after planting, and add potassium fertilizer starting from the seventh day, once a week. The flower stalk will emerge 20 to 25 days after transplanting, and the flowering period will last 15 to 20 days. After the flowers wither, cut off the flower stalks and apply a balanced nitrogen, phosphorus and potassium fertilizer to rejuvenate the bulb.

[0060] Working principle and usage process of this invention:

[0061] First, place the disinfected bulbs into the placement tray, and select the appropriate distance between the two L-shaped plates 602. Usually, the spacing can be small. Then, place the grille plate 4 into the box 1. The ventilation pipe 505 at the bottom of the grille plate 4 abuts against the air inlet connector 502 and pushes it forward. The U-shaped plates 601 on both sides of the support rod 3 are inserted into the L-shaped plates 602. The operator can squeeze the limiting rod 603 to retract into the inner cavity of the L-shaped plates 602 without hindering the sliding of the U-shaped plates 601 on the L-shaped plates 602 until the grille plate 4 abuts against the diffuser plate 501. At this time, the U-shaped plates 601 have completely passed the limiting rod 603. Under the action of the spring force, the limiting rod 603 rotates to both sides, automatically locking the current position of the U-shaped plates 601 to prevent them from retracting. During the rotation, the limiting rod 603 slides in the arc groove 604 through the sliding column 605, limiting the rotation range. Place the tray containing the bulbs on the grid plate 4, close the double-layer box door 2, start the temperature control module of the box 1, and after setting the relatively low temperature, the air outlet inside the box 1 will blow out hot or cold air to keep the environment inside the box at the set temperature.

[0062] Under the shielding effect of the diffuser plate 501, the blown air flows out along the gap between the diffuser plate 501 and the box body 1, allowing air to exit from all sides of the box body 1 simultaneously, preventing one side from blowing directly onto the bulbs. At this time, the ventilation pipe 505 presses against the air inlet connector 502, pushing the cover 506 outwards to expose the air inlet slot on the air inlet connector 502, allowing air to enter the ventilation pipe 505. The air is then evenly discharged through the exhaust vents on the ventilation pipe 505, ensuring that each layer of bulbs has several equidistantly arranged air outlets at its base, effectively improving the uniformity and stability of the exhaust. Furthermore, when a temperature change is needed, several exhaust vents inside the box body 1 can simultaneously blow out hot or cold air, significantly increasing the response rate and thus improving the flower bud differentiation rate.

[0063] Furthermore, when the ventilation pipe 505 squeezes the air inlet connector 502 to move outward, it can simultaneously drive the sliders 509 on both sides of the cover 506 to move axially. Through the sliders 509 squeezing in the inclined groove 5011, the arc plate 508 can drive the inner air duct 507 to rotate, so that the complete part of the inner air duct 507 coincides with the air leakage hole of the outer air duct 504. The outer air duct 504 and the inner air duct 507 together form an airtight air-gathering funnel, improving the air intake effect. Similarly, when the spacing of the grille plate 4 needs to be changed, the ventilation pipe 505 is pulled out, the air inlet connector 502 resets under elastic force, the cover 506 retracts and snaps onto the retaining ring 5010 to complete the sealing and blocking. At the same time, the slider 509 moves in the opposite direction, pressing the inclined slide groove 5011, causing the arc plate 508 to adjust the inner vent plate 507 to rotate. At this time, the air leakage holes of the inner vent plate 507 and the outer vent plate 504 coincide. When blowing air, the two cannot concentrate the air, and it does not affect the airflow spreading outwards along the diffuser plate 501. Moreover, the greater the wind speed, the tighter the cover 506 snaps onto the retaining ring 5010, so that the parts of the diffuser plate 501 not connected by the ventilation pipe 505 will not be leaking air.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A constant-temperature culture device for amaryllis, comprising a box body (1), wherein a double-layer box door (2) is installed on the side of the box body (1), and a plurality of support rods (3) are installed in the inner cavity of the box body (1), wherein a grid plate (4) is fixedly connected to the side wall of each support rod (3), characterized in that: Also includes: Uniform temperature distribution mechanism (5), the uniform temperature distribution mechanism (5) is located in the inner cavity of the box (1); Positioning and anti-detachment mechanism (6), the positioning and anti-detachment mechanism (6) is located at the inner edge of the box body (1); The uniform temperature distribution mechanism (5) and the positioning and anti-detachment mechanism (6) are provided in several quantities; The uniform temperature distribution mechanism (5) includes a diffuser plate (501) fixed to the inner cavity of the box (1) near the air outlet. There is a diffuser gap between the diffuser plate (501) and the box (1) around its perimeter. Several air inlet connectors (502) are evenly distributed on the diffuser plate (501), and the air inlet connectors (502) are elastically connected to the diffuser plate (501). The bottom of the grille (4) is fixedly connected to multiple ventilation pipes (505) at equal intervals. Multiple exhaust ports are evenly opened on the side wall of the ventilation pipes (505). One end of the air inlet connector (502) abuts against the end of the ventilation pipe (505). The other end of the air inlet connector (502) is fixedly connected to a cover (506). Several support plates (503) are fixedly connected to the side wall of the diffuser plate (501), and the grille (4) and the support plates (503) abut against each other. An air inlet groove is opened on the side of the air inlet connector (502) near the cover (506). A retaining ring (5010) is snapped onto the side wall of the cover (506). The retaining ring (5010) is fixedly connected to the diffuser plate (501). Several outer air ducts (504) are fixedly connected to the air diffuser (501), and the number of outer air ducts (504) is the same as that of the air inlet connector (502). An inner air duct (507) is rotatably connected to the inner surface of the outer air duct (504). Several mutually fitting air leakage holes are evenly opened on the surfaces of the outer air duct (504) and the inner air duct (507). A pair of arc plates (508) are fixedly connected to both sides of the inner air duct (507). An inclined sliding groove (5011) is opened on each of the arc plates (508). A slider (509) is slidably connected to each of the arc plates (508) through the inclined sliding groove (5011). The slider (509) is fixedly connected to the cover (506).

2. The amaryllis constant-temperature culture device according to claim 1, characterized in that: The positioning and anti-detachment mechanism (6) includes a pair of U-shaped clamping plates (601) fixed to both ends of the support rod (3). The outer walls of the U-shaped clamping plates (601) are movably clamped with L-shaped clamping plates (602). The side walls of the L-shaped clamping plates (602) are fixed to the box body (1).

3. The amaryllis constant-temperature culture device according to claim 2, characterized in that: Each edge of the L-shaped plate (602) is rotatably connected to a pair of limiting rods (603), and each pair of limiting rods (603) is elastically connected to each other. The outer walls of the limiting rods (603) abut against the U-shaped plate (601).

4. The amaryllis constant-temperature culture device according to claim 3, characterized in that: Each L-shaped card plate (602) has a pair of arc grooves (604) in its inner cavity, and the lower end of each limiting rod (603) is fixedly connected to a sliding column (605), which is slidably connected to the arc groove (604).

5. A method for isothermal culture of amaryllis, applied to the isothermal culture apparatus of amaryllis as described in claim 1, characterized in that: The culture method is as follows: S1. Pre-treat the bulbs of amaryllis and put them into constant temperature dormancy. First, select healthy bulbs, peel off the outer dead skin, soak them in alcohol for one minute, disinfect them with mercuric chloride solution for ten minutes, and then rinse them five times with sterile water. Next, insert the bulbs into the placement tray, select the appropriate spacing, and use the positioning and anti-detachment mechanism (6) to lock the support rod (3) and the grid plate (4). Place the placement tray containing the bulbs on the grid plate (4), close the double-layer box door (2), start the temperature control module, set the relatively low temperature, and then use the uniform temperature distribution mechanism (5) to evenly distribute the hot and cold air blown out of the box (1) for thirty to forty days in constant temperature mode. Low temperature induces the accumulation of endogenous hormones in the bulbs and completes flower bud differentiation. S2. After the low temperature is over, open the double-layer box door (2), use a cutting knife, and make three to four shallow marks along the surface of the bulb to break the cuticle. Then spray gibberellin solution on the marks to promote the end of dormancy. S3. After dormancy is broken, the culture medium is transplanted. The substrate is a mixture of leaf mold, perlite and vermiculite, and well-rotted sheep manure is added. After adjusting the pH value, the bulb is placed in the culture medium and buried to a depth of two-thirds of the bulb height. The bulb and the culture medium are placed in the box (1) for cultivation. The spacing between each layer needs to be adjusted and locked by the positioning and anti-detachment mechanism (6). Then the temperature control module is turned on and the temperature is raised stepwise by the uniform temperature distribution mechanism (5). The temperature is raised from five degrees to fifteen degrees within three days, and then stabilized after reaching twenty degrees. The humidity is maintained in the range of seventy to eighty-five degrees to carry out environmental transition. After the flower buds grow to a certain height, they are transplanted. S4. Shade the plant during the initial transplanting stage, and simulate natural diffused light after seven days. Spray nutrient solution three days after planting, and add potassium fertilizer starting from the seventh day, once a week. The flower stalk will emerge 20 to 25 days after transplanting, and the flowering period will last 15 to 20 days. After the flowers wither, cut off the flower stalks and apply a balanced nitrogen, phosphorus and potassium fertilizer to rejuvenate the bulb.

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