A saline-alkali soil four-winged chenopodium cultivation and seedling raising equipment and cultivation method

Abstract

The application relates to the technical field of seedling raising equipment, and particularly discloses a saline-alkali soil Atriplera sinica cultivation seedling raising equipment and a cultivation method, which comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with supporting frames, the inner wall of the supporting frame is fixedly connected with a chain conveyor through a support, one side of the supporting frame is fixedly connected with a driving motor through a support, the driving shaft of the driving motor is fixedly connected with the input end of the chain conveyor, the part of the supporting bottom plate, which is located between the two groups of supporting frames, is fixedly connected with a collecting assembly, and the chain of the chain conveyor is rotatably connected with a seedling raising device through a support. The saline-alkali soil Atriplera sinica cultivation seedling raising equipment and the cultivation method can automatically maintain the stable salt content of the seedling raising substrate, meet the salt tolerance domestication requirement of seedlings, intelligently control the air humidity in the transparent seedling raising cover, and avoid seedling dehydration or high-humidity seedling rot.

Description

Technical Field

[0001] This invention relates to the field of seedling equipment technology, and in particular to a seedling cultivation equipment and method for cultivating four-winged gooseberry in saline-alkali land. Background Technology

[0002] my country is rich in saline-alkali land resources, covering a total area of ​​over 1.5 billion mu (approximately 100 million hectares), widely distributed in Northwest, North, Northeast, and coastal areas, representing an important reserve of land resources. Developing and utilizing saline-alkali land is of great strategic significance for ensuring national food security and promoting ecological restoration and sustainable agricultural development. *Acer tetrapanax*, a perennial evergreen shrub belonging to the genus *Acer tetrapanax* of the family Chenopodiaceae, is native to the Midwestern United States. Through long-term selection and breeding, it has become an excellent halophyte with both ecological and economic value, hailed as a "biological desalination device" and a "miracle tree." With its extremely strong tolerance to salt and alkali, drought, cold, and poor soil conditions, it has become a pioneer tree species for the ecological management and vegetation restoration of saline-alkali land, providing a high-quality species foundation for the efficient utilization of saline-alkali land.

[0003] Chinese patent CN119866920B discloses a soilless cultivation device and method for agricultural flower planting. When it is necessary to spray nutrient solution on the leaves of flowers, the storage frame can be lifted from the placement tank, and then the positioning frame can be rotated to adjust the angle of the atomizing nozzle inside the positioning frame. Then, the circulation pump can be started to spray the nutrient solution onto the surface of the flower leaves to improve the nourishment of the leaves, thereby avoiding the troublesome problems of flower or vegetable leaves not being able to provide nutrient solution spraying or needing manual spraying and irrigation.

[0004] While the above methods can achieve foliar fertilization, they have poor control over the uniformity of sunlight during seedling cultivation. *Triplophysa gracilis* seedlings require high light uniformity; prolonged unilateral light exposure leads to etiolation and uneven growth, reducing seedling efficiency. However, existing chain-driven, uniform sunlight-receiving devices lack convenient and effective disassembly and fixation of seedling trays, which may slip during operation, damaging seedlings and affecting cultivation efficiency. Furthermore, existing seedling equipment relies heavily on manual, timed monitoring and adjustment of substrate salinity, requiring additional salt replenishment. In many cases, manual application of salt water often results in the salt water being sprayed onto the leaves and burning the seedlings, affecting the seedling efficiency of *Trigonella foenum-graecum*. The humidity of the seedling environment cannot be automatically regulated; high humidity can easily lead to seedling rot and disease, while low humidity can cause seedlings to dehydrate and wilt. Frequent manual adjustment of ventilation and watering is labor-intensive and lacks precision, resulting in low overall seedling efficiency. Furthermore, excess salt water and seepage water are directly discharged, causing waste of salt water and salt, and easily polluting the seedling environment. The water collected in the collection tank cannot be automatically drained, which increases the load on the transmission mechanism, causing a significant decrease in overall seedling efficiency. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solution: a seedling cultivation device and method for *Trifolium repens* in saline-alkali land, comprising a supporting base plate, a supporting frame fixedly connected to the top of the supporting base plate, a chain conveyor fixedly connected to the inner wall of the supporting frame via a bracket, a drive motor fixedly connected to one side of the supporting frame via a bracket, the drive shaft of the drive motor fixedly connected to the input end of the chain conveyor, a collection component fixedly connected to the top of the supporting base plate between two sets of supporting frames, and a seedling device rotatably connected to the chain of the chain conveyor via a bracket.

[0006] Preferably, the seedling raising device includes a fixing frame, the top of the fixing frame has an installation opening, both sides of the inner wall of the installation opening have a first sliding groove, one side of the inner wall of the first sliding groove has a second sliding groove, the inner wall of the first sliding groove is slidably connected to a seedling pot via a bracket, both sides of the seedling pot are fixedly connected to an installation component, the top of the fixing frame located on both sides of the installation opening is fixedly connected to a transparent seedling cover, the bottom of the fixing frame located on one side of the seedling pot is fixedly connected to a salt supplementation component, the bottom of the seedling pot is slidably connected to a venting box, the side of the venting box is fixedly connected to the salt supplementation component, the bottom of the venting box is fixedly connected to a water collection box, and both sides of the inner wall of the transparent seedling cover are fixedly connected to a watering component for watering the seedlings.

[0007] Preferably, the top and bottom of the inner wall of the second slide groove are provided with a first movable groove, a first spring is fixedly connected to the top of the inner wall of the first movable groove, a fixed plug is fixedly connected to the bottom of the first spring, and both sides of the fixed plug are slidably connected to the inner wall of the first movable groove.

[0008] Preferably, the installation assembly includes an installation plate with a fixing socket at the top. A second spring is fixedly connected to one side of the inner wall of the fixing socket, and a push block is slidably connected to the inner wall of the fixing socket. One side of the push block is fixedly connected to the second spring. A pressing rod is slidably connected through the portion of the inner wall of the fixing socket located inside the second spring. One end of the pressing rod is fixedly connected to the push block. Two sets of installation plates are symmetrically fixedly connected to both sides of the seedling tray. Both sides of the installation plate are slidably connected to the inner wall of the second sliding groove. The inner wall of the fixing socket is slidably connected to both sides of the fixing block. The installation assembly enables tool-free quick assembly and disassembly. Combined with the cyclical rotation of the chain conveyor, the seedlings receive uniform light and grow evenly, balancing stability and seedling efficiency.

[0009] Preferably, the seedling pot includes a pot body, with conical drainage holes evenly distributed at the bottom of the inner wall of the pot. The conical drainage holes are gradually expanding in shape. A sliding insertion port is provided on one side of the inner wall of the pot, and salt leaching troughs are provided on both sides of the inner wall of the pot. A guide rounded corner is provided on one side of the inner wall of the salt leaching trough. The sliding insertion port communicates with the salt leaching trough, and the conical drainage holes communicate with the venting box. The salt replenishment component includes a fixing plate, a salt water tank is fixedly connected to one side of the fixing plate, and a U-shaped spray pipe is fixedly connected to one side of the fixing plate. The inlet of a micro-pump is connected to the top of the salt water tank, and a connecting pipe is connected to the outlet of the micro-pump. The end of the connecting pipe away from the micro-pump passes through the fixing plate and communicates with the U-shaped spray pipe. Both sides of the U-shaped spray pipe are slidably connected to the inner wall of the salt leaching trough. The top of the fixing plate is fixedly connected to the bottom of the fixing frame, and one side of the fixing plate is fixedly connected to the venting box. Salt water is automatically sprayed according to salinity detection to evenly replenish the substrate salt and meet the seedling needs of halophytes.

[0010] Preferably, a third spring is fixedly connected to the top of the transparent seedling cover, a pull plate is fixedly connected to the top of the third spring, a salinity detector is fixedly connected to the top of the pull plate, the detection probe of the salinity detector passes through the top of the transparent seedling cover and is slidably connected to the transparent seedling cover, ventilation openings are provided on both sides of the transparent seedling cover, guide grooves are symmetrically provided on the side of the transparent seedling cover above the ventilation openings, a ventilation damper is slidably connected to the inner wall of the guide grooves via a bracket, a return spring is fixedly connected to the side of the transparent seedling cover via a bracket, the bottom of the return spring is fixedly connected to the top of the ventilation damper, sliding rods are symmetrically fixedly connected to the bottom of the ventilation damper, the bottom of the sliding rods respectively passes through the top of the fixed frame and the top of the ventilation box and is fixedly connected to a floating plate, the floating plate is located inside the ventilation box, drainage micro-holes are provided at the bottom of the inner wall of the ventilation box, a ventilation hole is provided on one side of the ventilation box, the drainage micro-holes are connected to the water collection tank, the automatic humidity control structure uses the floating water level of the ventilation box to drive the opening and closing of the ventilation damper, automatically adjusting the humidity inside the seedling cover to prevent disease and dehydration.

[0011] Preferably, the collection assembly includes a collection tank, a fixed trigger plate is fixedly connected to the bottom of the inner wall of the collection tank, the top of the fixed trigger plate has a guide rounded corner, the bottom of the collection tank is fixedly connected to the top of the supporting base plate, the water collection tank includes a tank body, the bottom of the tank body has a drain outlet, the inner wall of the drain outlet is fixedly connected to a fixed sleeve, both sides of the fixed sleeve located inside the tank body have openings, the top of the inner wall of the fixed sleeve is uniformly fixedly connected to a compression spring, the inner wall of the fixed sleeve is slidably connected to a sealing plate, the top of the sealing plate is fixedly connected to the compression spring, the bottom of the sealing plate is fixedly connected to a compression trigger rod, the top of the tank body is fixedly connected to a vent box, the overflow recovery structure automatically drains and recovers water when the water collection tank is in a low position, reducing equipment load, saving brine resources, and reducing manual management and environmental pollution.

[0012] A cultivation method for a seedling cultivation device for *Trigonella foenum-graecum* in saline-alkali land includes the following steps:

[0013] S1: Prepare a suitable saline seedling substrate for Trichoderma tetrapanax, adjust all components of the seedling equipment to normal condition, and evenly fill the seedling pots with the substrate and pre-treat it.

[0014] S2: Pull the pull plate to install the seedling pot, use the elastic structure to fix it, reset the salinity detector to monitor, transplant the healthy seedlings and close the transparent seedling cover to start the equipment;

[0015] S3: The drive motor drives the seedling device to ensure uniform light. The salinity detector and salt replenishment component automatically regulate the substrate salinity. By discharging excess salt water and accumulated water, the ventilation structure is automatically triggered to adjust the ventilation and air permeability inside the transparent seedling cover, maintaining a suitable humidity and air environment in the seedling space.

[0016] S4: Excess brine is automatically discharged into a collection tank for treatment and reuse. Regularly inspect equipment components, clean debris, troubleshoot malfunctions, and replenish water.

[0017] S5: After the four-winged quinoa seedlings have been cultivated to meet the transplanting standards, the operator can loosen the elastic fixing structure of the seedling pot installation components and quickly take out the seedlings with complete substrate soil balls, and directly transplant them to the saline-alkali land planting area to complete the cultivation.

[0018] The beneficial effects of the technical solution provided by this invention include:

[0019] 1. This equipment and method for cultivating *Trigonella foenum-graecum* in saline-alkali land utilizes a quick-installation structure with elastic blocks and springs. When installing seedling pots, inserting them into the sliding groove automatically locks them in place. Disassembly is achieved by pressing the lever to remove the pots, facilitating pot replacement, transport, and transplanting. Simultaneously, a drive motor rotates a chain conveyor, causing the seedling device to reciprocate, ensuring each pot and seedling receives uniform natural light. This guarantees consistent light conditions and uniform growth. The stable fixation effectively prevents pots from slipping during operation, improving the efficiency of continuous seedling production.

[0020] 2. This equipment and cultivation method for cultivating *Azolla quadrangularis* in saline-alkali land is designed to automatically maintain a stable salinity in the seedling substrate, meeting the salt tolerance acclimatization needs of seedlings. Excess salt is discharged with the seepage water during watering, causing a decrease in substrate salinity. When the salinity meter detects insufficient salinity, a micro-pump automatically extracts a suitable concentration of saline solution and evenly delivers it into the salt-leaching tank through a U-shaped spray pipe. The saline solution slowly seeps into the substrate along the tank wall, avoiding direct spraying that could scorch the seedling leaves and ensuring even salt distribution. This ensures that *Azolla quadrangularis* seedlings receive a suitable salinity environment throughout the entire seedling stage, effectively improving seedling survival rate and efficiency.

[0021] 3. This equipment and method for cultivating *Trigonella foenum-graecum* in saline-alkali land can intelligently regulate the air humidity inside the transparent seedling cover, preventing seedling dehydration or rotting due to high humidity. After watering, excess water flows into the ventilation box, the rising water level lifts the floating plate, which in turn raises the ventilation damper to open the vents and expel humid air to reduce humidity. After the accumulated water is drained, the water level drops, and the ventilation damper automatically resets to close the vents, maintaining suitable humidity. At the same time, when installing seedling pots, the pull plate can be pulled upwards to avoid obstruction. After installation, the salinity detector automatically resets, and the probe is inserted into the substrate to monitor salinity. The entire process does not require frequent manual adjustments, thus improving seedling production efficiency.

[0022] 4. This equipment and method for cultivating *Trigonella foenum-graecum* in saline-alkali land can automatically recover excess brine, avoiding excessive water accumulation in the collection tank and increasing the load on the chain conveyor. When the collection tank rotates above the collection component, the squeezing trigger rod is lifted, causing the sealing plate to rise and expose the opening. Excess brine is automatically discharged into the collection tank for centralized treatment and reuse, reducing the waste of brine and salt, avoiding pollution of the seedling environment, and not affecting drainage and humidity regulation. It eliminates the need for manual timed discharge, significantly reducing the workload of manual management, and is suitable for large-scale seedling operations, further improving seedling efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the seedling cultivation equipment and cultivation method for Trigonella foenum-graecum in saline-alkali land according to the present invention;

[0024] Figure 2 This is a schematic diagram of the seedling raising device of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection structure between the first and second slide grooves of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure of the mounting components of the present invention;

[0027] Figure 5 This is an enlarged structural diagram of point A in the present invention;

[0028] Figure 6 This is a schematic diagram of the connection structure of the salt replenishment component of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal connection structure of the seedling tray of the present invention;

[0030] Figure 8 This is a schematic diagram of the internal connection structure of the transparent seedling cover of the present invention;

[0031] Figure 9 This is a schematic diagram of the internal connection structure of the water collection tank of the present invention;

[0032] Figure 10 This is a schematic diagram of the component structure for this invention.

[0033] Figure 11 This is a schematic diagram of the process structure of the present invention.

[0034] In the diagram: 1. Support base plate; 2. Support frame; 3. Chain conveyor; 4. Drive motor; 5. Collection assembly; 6. Seedling device; 51. Collection box; 52. Fixed trigger plate; 61. Fixed frame; 62. Mounting port; 63. First chute; 64. Second chute; 65. Seedling pot; 66. Mounting assembly; 67. Transparent seedling cover; 68. Salt supplementation assembly; 69. Ventilation box; 610. Water collection tank; 611. First movable groove; 612. First spring; 613. Fixed insert; 614. Sprinkler assembly; 615. Third spring; 616. Pull plate; 617. Salinity meter; 618. Ventilation opening; 619. Guide chute; 620. Ventilation damper. 621. Return spring; 622. Sliding rod; 623. Floating plate; 624. Drainage micro-hole; 625. Ventilation hole; 651. Basin; 652. Conical drainage hole; 653. Sliding socket; 654. Salt bath; 661. Mounting plate; 662. Fixed socket; 663. Second spring; 664. Push block; 665. Pressing rod; 681. Fixed plate; 682. Salt tank; 683. U-shaped spray pipe; 684. Miniature transfer pump; 685. Connecting pipe; 6101. Box body; 6102. Drain outlet; 6103. Fixed sleeve; 6104. Through port; 6105. Compression spring; 6106. Sealing plate; 6107. Compression trigger rod. Detailed Implementation

[0035] For the first embodiment, please refer to... Figures 1-5 This invention provides a seedling cultivation device and method for *Trifolium repens* in saline-alkali land. By incorporating an installation component 66 and a sliding installation structure, when the seedling pot 65 needs to be fixed, the supports on both sides of the seedling pot 65 are inserted into the first sliding groove 63 within the installation opening 62 until the installation plate 661 is inserted into the second sliding groove 64. During insertion, the inner wall of the second sliding groove 64 presses against the inclined surface of the fixing block 613, pushing the fixing block 613 upwards into the first movable groove 611 and compressing the first spring 612. Once the installation plate 661 is fully inserted, the fixing block 613 aligns with the fixing insertion opening 662 on the installation plate 661. The compressed first spring 612 pops out and resets, pushing the fixing block 613 into the fixing insertion opening 662 for secure fixation. At this point, the fixing block 613 is tightly against the push block 664. When the seedling pot 65 needs to be replaced or removed, simply press the pressing rod 665 from the outside. The pressing rod 665 pushes the push block 664 to slide inward along the fixed insertion port 662. The push block 664 pushes the fixed insertion block 613 out of the fixed insertion port 662, at which point the seedling pot 65 can be pulled out of the slide. The installation and disassembly process does not require any additional tools, and the seedling pot 65 can be quickly replaced, transferred and transplanted. During the seedling process, the drive motor 4 starts and continuously drives the chain conveyor 3 to operate. The operation of the chain conveyor 3 drives the entire seedling device 6 to rotate back and forth, so that each seedling device 6 can receive natural light evenly, and all the four-winged gooseberry seedlings can get more consistent light conditions, resulting in more uniform seedling growth. Traditional equipment lacks effective fixation during operation, which may cause the seedling pot 65 to slip off during operation. The stable fixation and quick disassembly take into account both structural stability and operation convenience, which greatly improves the efficiency of continuous seedling production.

[0036] For the second embodiment, please refer to... Figures 1-7By incorporating a salt-replenishing component 68, during the seedling cultivation of *Acer tetragonum* seedlings, which are halophytes, the substrate needs to maintain a stable salt content to acclimate the seedlings to salt tolerance. During watering, water continuously washes away the salt in the substrate, and excess salt flows through the conical drainage hole 652 into the lower aeration box 69 and then into the water collection box 610, causing the salt content in the substrate to gradually decrease and fail to meet the acclimatization requirements of *Acer tetragonum* seedlings. The conical drainage hole 652 is designed to allow for smooth drainage and aeration without substrate leakage. The salt-replenishing component 68 can automatically replenish salt. When the salinity detector 617 detects the salt content in the substrate... When the salinity is insufficient, the micro-pump 684 starts, drawing a suitable concentration of saline solution from the saline tank 682 and sending it through the connecting pipe 685 into the U-shaped spray pipe 683. The U-shaped spray pipe 683 sprays the saline solution evenly into the salt leaching tanks 654 on both sides. The saline solution slowly seeps into the substrate around the seedling pot 65 along the inclined inner wall and guide rounded corners of the salt leaching tank 654, without directly washing the seedling leaves, thus avoiding seedling burn caused by direct spraying of saline solution onto the leaves. This allows the salt to be evenly distributed in the substrate, stably maintaining the substrate salinity and ensuring that the four-winged pheasant seedlings can obtain a suitable salinity environment throughout the seedling cycle, effectively improving seedling efficiency.

[0037] Third embodiment, please refer to Figures 1-8 By incorporating an automatic humidity control and ventilation structure, the seedlings of *Triplophysa quassop* var. *quassop* require stable air humidity to prevent dehydration and rotting when grown in a closed, transparent seedling cover 67. However, excessive humidity can easily lead to mold growth and seedling rot. After watering, excess water flows from the conical drainage hole 652 of the seedling tray 65 into the ventilation box 69. Water gradually accumulates in the ventilation box 69, and as the water level rises, it lifts the floating plate 623. The floating plate 623 rises, causing the sliding rod 622 to push upwards. The sliding rod 622 pushes the top ventilation gate 620 upwards along the guide groove 619, fully opening the ventilation opening 618. At this time, the humid air inside the transparent seedling cover 67 can be discharged outwards through the ventilation opening 618, reducing the humidity inside the cover and preventing... High humidity causes seedling diseases. As the water in the ventilation box 69 slowly drains from the bottom drainage micro-holes 624 into the lower water collection box 610, the water level in the ventilation box 69 gradually decreases. The floating plate 623 also decreases synchronously with the water level. The reset spring 621 pulls the ventilation damper 620 downwards to gradually close the ventilation opening 618, slowing down the air circulation speed, reducing the evaporation of water inside the cover, and maintaining suitable internal humidity. When installing the seedling pot 65, pull the pull plate 616 upwards to avoid obstructing the installation of the seedling pot 65. After the seedling pot 65 is installed in place, release the pull plate 616. The third spring 615 will pull the pull plate 616 to drive the salinity detector 617 downwards to reset, so that the detection probe can be inserted into the substrate of the seedling pot 65 to monitor the substrate salinity content.

[0038] For the fourth embodiment, please refer to [link / reference]. Figures 1-11 By setting up an automatic overflow recovery structure, excess brine will be continuously discharged into the water collection tank 610. The water in the water collection tank 610 will continue to accumulate and increase in weight. In order to avoid the impact of excessive weight on the operation of the chain conveyor 3, whenever the water collection tank 610 rotates above the collection component 5 below, the squeezing trigger rod 6107 inside the water collection tank 610 will first contact the fixed trigger plate 52 inside the collection box 51. The guide rounded corner at the top of the fixed trigger plate 52 will push the squeezing trigger rod 6107 upward. The squeezing trigger rod 6107 will drive the sealing plate 6106 to slide upward along the inner wall of the fixed sleeve 6103. The squeezing spring 6105 will be compressed. When the sealing plate 6106 is lifted upward away from the drain outlet 6102, the opening 6104 on the side wall of the fixed sleeve 6103 will be exposed. Excess brine stored inside the water collection tank 610 flows through the inlet 6104 into the fixed sleeve 6103, and then is completely discharged from the drain outlet 6102 at the bottom into the collection box 51 below for recycling. This not only avoids excessive water accumulation and weight in the water collection tank 610, which would increase the operating burden on the chain conveyor 3, but also allows for centralized treatment and reuse of the discharged brine, preventing it from flowing freely and polluting the seedling environment. It also reduces the waste of brine and salt, and prevents excessive water accumulation in the water collection tank 610 from affecting drainage and the ventilation effect of the buoyancy adjustment in the ventilator box 69. Through the above-described operation, the automatic recycling of overflowing brine can be completed automatically, eliminating the need for manual timed drainage of water in each water collection tank 610, reducing the workload of manual management, and improving the efficiency of large-scale seedling operations.

[0039] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A seedling cultivation equipment and method for *Trigonella foenum-graecum* in saline-alkali land, characterized in that: The system includes a support base plate (1), a support frame (2) fixedly connected to the top of the support base plate (1), a chain conveyor (3) fixedly connected to the inner wall of the support frame (2) via a bracket, a drive motor (4) fixedly connected to one side of the support frame (2) via a bracket, the drive shaft of the drive motor (4) fixedly connected to the input end of the chain conveyor (3), a collection component (5) fixedly connected to the top of the support base plate (1) between the two sets of support frames (2), and a seedling device (6) rotatably connected to the chain of the chain conveyor (3) via a bracket. The seedling device (6) includes a fixed frame (61), with an installation opening (62) at the top. First grooves (63) are provided on both sides of the inner wall of the installation opening (62), and a second groove (64) is provided on one side of the inner wall of the first grooves (63). Seedling pots (65) are slidably connected to the inner wall of the first grooves (63) via brackets. Installation components (66) are fixedly connected to both sides of the seedling pots (65). The top portion of the fixed frame (61) located on both sides of the installation opening (62) is fixedly connected to... A transparent seedling cover (67) is attached. A salt supplementation component (68) is fixedly connected to the bottom of the fixed frame (61) on one side of the seedling pot (65). A ventilation box (69) is slidably connected to the bottom of the seedling pot (65). The side of the ventilation box (69) is fixedly connected to the salt supplementation component (68). A water collection box (610) is fixedly connected to the bottom of the ventilation box (69). A water spraying component (614) is fixedly connected to both sides of the inner wall of the transparent seedling cover (67). The water spraying component (614) is used to spray water on the seedlings.

2. The equipment and method for cultivating and raising *Trigonella foenum-graecum* in saline-alkali land according to claim 1, characterized in that: The second sliding groove (64) has a first movable groove (611) at the top and bottom of its inner wall. A first spring (612) is fixedly connected to the top of the inner wall of the first movable groove (611), and a fixed plug (613) is fixedly connected to the bottom of the first spring (612). Both sides of the fixed plug (613) are slidably connected to the inner wall of the first movable groove (611).

3. The equipment and method for cultivating *Trigonella foenum-graecum* in saline-alkali land according to claim 2, characterized in that: The mounting assembly (66) includes a mounting plate (661), a fixing socket (662) is provided on the top of the mounting plate (661), a second spring (663) is fixedly connected to one side of the inner wall of the fixing socket (662), a push block (664) is slidably connected to the inner wall of the fixing socket (662), one side of the push block (664) is fixedly connected to the second spring (663), a pressing rod (665) is slidably connected through the part of the inner wall of the fixing socket (662) located inside the second spring (663), one end of the pressing rod (665) is fixedly connected to the push block (664), the mounting plate (661) is provided with two sets and symmetrically fixedly connected to both sides of the seedling pot (65), both sides of the mounting plate (661) are slidably connected to the inner wall of the second sliding groove (64), and the inner wall of the fixing socket (662) is slidably connected to both sides of the fixing block (613).

4. The equipment and method for cultivating and raising *Trigonella foenum-graecum* in saline-alkali land according to claim 1, characterized in that: The seedling pot (65) includes a pot body (651). The bottom of the inner wall of the pot body (651) is evenly provided with conical drainage holes (652). The conical drainage holes (652) are gradually expanding in shape. A sliding insertion port (653) is provided on one side of the inner wall of the pot body (651). Salt leaching troughs (654) are provided on both sides of the inner wall of the pot body (651). A guide rounded corner is provided on one side of the inner wall of the salt leaching trough (654). The sliding insertion port (653) is connected to the salt leaching trough (654). The conical drainage holes (652) are connected to the ventilation box (69).

5. The equipment and method for cultivating and raising *Trigonella foenum-graecum* in saline-alkali land according to claim 4, characterized in that: The salt replenishment component (68) includes a fixed plate (681), a brine tank (682) is fixedly connected to one side of the fixed plate (681), a U-shaped spray pipe (683) is fixedly connected to one side of the fixed plate (681), the top of the brine tank (682) is connected to the inlet of a micro-pump (684), the outlet of the micro-pump (684) is connected to a connecting pipe (685), the end of the connecting pipe (685) away from the micro-pump (684) passes through the fixed plate (681) and is connected to the U-shaped spray pipe (683), both sides of the U-shaped spray pipe (683) are slidably connected to the inner wall of the salt leaching tank (654), the top of the fixed plate (681) is fixedly connected to the bottom of the fixed frame (61), and one side of the fixed plate (681) is fixedly connected to the venting box (69).

6. The seedling cultivation equipment and method for *Trigonella foenum-graecum* in saline-alkali land according to claim 1, characterized in that: A third spring (615) is fixedly connected to the top of the transparent seedling cover (67). A pull plate (616) is fixedly connected to the top of the third spring (615). A salinity detector (617) is fixedly connected through the top of the pull plate (616). The detection probe of the salinity detector (617) passes through the top of the transparent seedling cover (67) and is slidably connected to the transparent seedling cover (67). Ventilation openings (618) are provided on both sides of the transparent seedling cover (67). Guide grooves (619) are symmetrically provided on the side of the transparent seedling cover (67) above the ventilation openings (618). A ventilation gate (620) is slidably connected to the inner wall of the guide groove (619) through a bracket. A return spring (621) is fixedly connected to the side of the transparent seedling cover (67) by a bracket. The bottom of the return spring (621) is fixedly connected to the top of the ventilation damper (620). A sliding rod (622) is symmetrically fixedly connected to the bottom of the ventilation damper (620). The bottom of the sliding rod (622) passes through the top of the fixed frame (61) and the top of the ventilation box (69) and is fixedly connected to a floating plate (623). The floating plate (623) is located inside the ventilation box (69). A drainage micro-hole (624) is opened at the bottom of the inner wall of the ventilation box (69). A ventilation hole (625) is opened on one side of the ventilation box (69). The drainage micro-hole (624) is connected to the water collection tank (610).

7. The equipment and method for cultivating *Trigonella foenum-graecum* in saline-alkali land according to claim 1, characterized in that: The collection component (5) includes a collection box (51), a fixed trigger plate (52) is fixedly connected to the bottom of the inner wall of the collection box (51), the top of the fixed trigger plate (52) is provided with a guide rounded corner, and the bottom of the collection box (51) is fixedly connected to the top of the support base plate (1).

8. The equipment and method for cultivating and raising *Trigonella foenum-graecum* in saline-alkali land according to claim 1, characterized in that: The water collection tank (610) includes a tank body (6101), a drain outlet (6102) is provided at the bottom of the tank body (6101), a fixed sleeve (6103) is fixedly connected to the inner wall of the drain outlet (6102), and openings (6104) are provided on both sides of the fixed sleeve (6103) inside the tank body (6101). A compression spring (6105) is evenly fixedly connected to the top of the inner wall of the fixed sleeve (6103), a sealing plate (6106) is slidably connected to the inner wall of the fixed sleeve (6103), the top of the sealing plate (6106) is fixedly connected to the compression spring (6105), a compression trigger rod (6107) is fixedly connected to the bottom of the sealing plate (6106), and the top of the tank body (6101) is fixedly connected to the ventilated box (69).

9. A cultivation method for a seedling cultivation device for *Trigonella foenum-graecum* in saline-alkali land, characterized in that, Includes the following steps: S1: Prepare a suitable salt-containing seedling substrate for Triplophysa brevicorna, adjust each component of the seedling equipment to normal condition, and evenly fill the seedling pot (65) with the substrate and pre-treat it. S2: Pull the pull plate (616) to install the seedling pot (65), fix it with the elastic structure, reset the salinity detector (617) to monitor, transplant the healthy seedlings and close the transparent seedling cover (67) to start the equipment; S3: The drive motor (4) drives the seedling device (6) to operate to ensure uniform light. The salinity detector (617) and the salt replenishment component (68) automatically regulate the substrate salinity. By discharging excess salt water and accumulated water, the ventilation structure is automatically triggered to adjust the ventilation permeability inside the transparent seedling cover (67) to maintain a suitable humidity and air environment in the seedling space. S4: Excess brine is automatically discharged into the collection tank (51) for treatment and reuse. Regularly check the equipment components, clean up debris, troubleshoot and replenish water. S5: After the seedlings of the four-winged quinoa have been cultivated to meet the transplanting standards, the operator can untie the elastic fixing structure of the seedling pot (65) installation component (66) and quickly take out the seedlings with complete substrate soil balls, and directly transplant them to the saline-alkali land planting area to complete the cultivation.

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