A stacked hybrid rice breeding device and a breeding method thereof

Abstract

The application relates to the technical field of hybrid rice breeding, in particular to a stacked hybrid rice cultivation device and a cultivation method thereof, which comprises a support, a plurality of lifting plates fixed on the support and vertically and equidistantly distributed, culture boxes fixed on the lifting plates, a conduction spraying mechanism arranged on the lifting plates, a lifting and translation mechanism arranged on the support, support plates symmetrically arranged on the lifting and translation mechanism, and a ventilation mechanism arranged on the support plates and comprising two groups of air deflectors symmetrically arranged, and a flow guide mechanism arranged on the support plates. Through cooperation of the ventilation mechanism and the flow guide mechanism, the air deflectors can perform reciprocating and swinging actions to converge and diffuse air flow, so that the air pressure when two air flows impact each other is continuously changed, the distance between the rods is increased, the air flow diffusion range is increased, and the atomized leaf fertilizer carried by the air flow can be smoothly adhered to the lower leaves.

Description

Technical Field

[0001] This invention relates to the field of hybrid rice breeding technology, specifically a stacked hybrid rice cultivation device and its cultivation method. Background Technology

[0002] Seedling cultivation is a crucial step in ensuring high yields of hybrid rice, and attention must be paid to details such as seed treatment, seedbed management, and water and fertilizer regulation.

[0003] Layered hybrid rice cultivation is an innovative model that integrates modern agricultural engineering technology and biotechnology. Its advantages are reflected in multiple dimensions such as space efficiency, environmental control, and production benefits. During the planting process, attention needs to be paid to light, environment, water and fertilizer management, ventilation, and assisted pollination to ensure the cultivation effect of rice.

[0004] In terms of water and fertilizer management, uneven fertilization is one of the important reasons affecting seedling growth. When applying foliar fertilizer, nutrients can be quickly replenished through leaf absorption, accelerating the growth rate of seedlings. However, if foliar fertilizer is sprayed directly onto the surface of seedlings during fertilization, the upper leaves will inevitably have a shading effect on the lower leaves, which may lead to salt damage (such as leaf edge scorching) in the upper leaves due to preferential contact with fertilizer, while the lower leaves will stagnate due to lack of fertilizer.

[0005] To address this, fertilization can be achieved using a spray nozzle at an angle. This angled application allows some foliar fertilizer to bypass the upper leaf edges, increasing the amount received by the lower leaves. However, in practice, due to the uneven distribution and growth of seedlings, angled spraying cannot effectively control the foliar fertilizer to fully penetrate the upper leaves. Even if it does penetrate the upper leaves, subsequent penetration relies solely on the fertilizer's own flow and cannot effectively cross the interlayer gaps. This results in a significant difference in the amount of fertilizer applied to the lower leaves compared to the upper leaves, leading to uneven seedling growth. Summary of the Invention

[0006] The purpose of this invention is to provide a stacked hybrid rice cultivation device and cultivation method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A stacked hybrid rice cultivation device, comprising:

[0009] A support frame, and a plurality of lifting plates fixed on the support frame and distributed vertically at equal intervals, wherein an incubator is fixed on the lifting plates;

[0010] Also includes:

[0011] A spraying mechanism is installed on the lifting plate and is used to perform spraying action on the rice.

[0012] A lifting and translating mechanism is mounted on the bracket, and symmetrically arranged support plates are connected to the lifting and translating mechanism.

[0013] A ventilation mechanism is provided on the support plate. The ventilation mechanism includes two sets of air guide plates arranged symmetrically. The support plate is also provided with a flow guiding mechanism. The flow guiding mechanism can adjust the sway angle of the air guide plates when the ventilation mechanism drives the air guide plates to move in the horizontal direction, so as to guide the airflow to perform mutual impact.

[0014] As a further aspect of the present invention: the ventilation mechanism includes a groove formed on the support plate, a sliding plate rotatably connected to the air guide plate is slidably installed in the groove, and a fan is fixed on the sliding plate.

[0015] As a further embodiment of the present invention: the ventilation mechanism further includes a second lead screw rotatably mounted on the support plate, a second threaded sleeve being threadedly connected to the second lead screw, and a connecting plate for driving the sliding plate to slide being fixed on the second threaded sleeve.

[0016] As a further embodiment of the present invention: the flow guiding mechanism includes a support column fixed on the connecting plate, the support column having a movable sleeve that slides axially, and hinge rods that are symmetrically arranged on both sides of the movable sleeve, with a push rod rotatably mounted at the end of the hinge rod and rotatably connected to the air guide plate.

[0017] As a further embodiment of the present invention: the flow guiding mechanism further includes a corrugated groove formed on the support plate, and a limiting post fixed on the movable sleeve that slides and engages with the corrugated groove.

[0018] As a further embodiment of the present invention: the lifting mechanism includes a fixed plate fixed on the bracket, a first lead screw is rotatably mounted on the fixed plate, and a first threaded sleeve that is fixedly connected to the support plate is threaded onto the first lead screw.

[0019] As a further embodiment of the present invention: the lifting mechanism further includes a guide column fixed on the fixed plate, and the guide column has a guide sleeve that is fixedly connected to the support plate and slides axially.

[0020] As a further embodiment of the present invention: the guiding spray mechanism includes a support ring fixed to the bottom of the lifting plate, a conveying pipe rotatably installed inside the support ring, and a rotating rod rotatably connected to the lifting plate is fixed to the side end of the conveying pipe.

[0021] As a further embodiment of the present invention: the guiding spray mechanism further includes a plurality of nozzles connected to the outer circumference of the conveying pipe and distributed at equal intervals, a cylinder is fixed to the side end of the conveying pipe, the telescopic end of the cylinder passes through the conveying pipe and is fixed with a sealing plate that fits against the inner circumference of the conveying pipe, and a plurality of guiding holes are formed on the sealing plate that are distributed at equal intervals and cooperate with the nozzles.

[0022] A method for cultivating layered hybrid rice includes the following steps:

[0023] Step 1: Spray the required nutrient solution and water downwards from the top of the incubator through the conductive spray mechanism;

[0024] Step 2: At the same time, foliar fertilizer is sprayed from the side of the rice through the atomizer. Under the action of the lifting mechanism, the height of the ventilation mechanism is adjusted by the support plate. The atomizer will move synchronously with the ventilation mechanism and provide bidirectional counter-current wind to the rice under the action of the ventilation mechanism. It also moves continuously along the length of the support plate, so that the atomized foliar fertilizer can be smoothly adhered to the leaves between the stems.

[0025] Step 3: The ventilation mechanism will also drive the flow guiding mechanism to move. Under the action of the flow guiding mechanism, the deflection angle of the air guide plate is adjusted, thereby continuously gathering and diffusing the airflow, so that the two airflows collide with each other with different wind pressures.

[0026] Step 4: After the foliar fertilizer has been completely sprayed on the current culture box, the lifting mechanism controls the ventilation mechanism via the support plate to move to the next culture box position and perform fertilization again.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: This application can achieve the two airflows impacting each other at different pressures by bidirectional air supply and periodically converging and depressurizing the two airflows, thereby increasing the diffusion range of foliar fertilizer and enabling the foliar fertilizer to pass smoothly through the gap between the stems, ensuring that the amount of fertilizer applied to the upper and lower layers of leaves is within a uniform range. Specifically, when the lifting mechanism moves the ventilation mechanism to the required lateral fertilization position in the cultivation box through the support plate, foliar fertilizer can be applied from the side of the seedlings through the atomizer. Under the action of the ventilation mechanism, bidirectional air supply is performed on the rice. At the same time, the ventilation mechanism will also drive the flow guiding mechanism to move, so as to continuously adjust the deflection angle of the air guide plate, so that the air pressure of the two airflows changes periodically, thereby increasing the shaking frequency of the rice through impact, so that the airflow carries the atomized foliar fertilizer to flow smoothly between the rice stems.

[0028] By continuously adjusting the sway angle of the air guide plate, two airflows can be converged under high pressure and diffused under low pressure. The converged high-pressure airflow "jets" the airflow into the inner canopy of the rice plants, causing the rice stalks to temporarily tilt or vibrate, thereby increasing the spacing between the stalks. The diffused low-pressure airflow prolongs the airflow time, allowing the atomized foliar fertilizer to adhere smoothly to the lower leaves. The periodic pressure fluctuations simulate natural gusts, causing the spacing between rice stalks to fluctuate continuously, and the alternating wind speeds prevent the rice stalks from lodging due to continuous strong winds, thereby improving breeding efficiency. At the same time, the airflow collision will generate turbulent vortices, allowing the rice to swing freely in an irregular form, so that excess foliar fertilizer remaining on the upper leaves can be detached from the upper leaves, increasing the capture rate of the lower leaves. During the airflow impact, excess moisture remaining in the lower layer of rice can also be diffused to the upper layer of rice, which can not only prevent the lower layer from being too moist, leading to poor rice growth, but also reuse excess moisture, thus achieving an environmental protection effect.

[0029] The solution can also be evenly sprayed onto the rice planted in the cultivation box through a conductive spraying mechanism. Under the action of the conductive spraying mechanism, the solution can be discharged through multiple nozzles at the same pressure, ensuring that there is no pressure gradient in the delivery pipe, which would result in different spray volumes of solution, thereby ensuring normal growth of the rice. Water can also be delivered into the delivery pipe during the breeding process and sprayed into the growth area in the form of atomization through the nozzles to ensure that the growth conditions of the rice are within the optimal humidity range during the breeding process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of one embodiment of a stacked hybrid rice cultivation device.

[0031] Figure 2 This is a structural schematic diagram from another angle in one embodiment of a stacked hybrid rice cultivation device.

[0032] Figure 3 This is a schematic diagram showing the connection relationship between the ventilation mechanism and the flow guiding mechanism in one embodiment of a stacked hybrid rice cultivation device.

[0033] Figure 4 for Figure 3 Another structural diagram from a different angle.

[0034] Figure 5 This is a schematic diagram of the structure of some ventilation and flow guiding mechanisms in one embodiment of a stacked hybrid rice cultivation device.

[0035] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0036] Figure 7This is a schematic diagram of the flow guiding mechanism, air guide plate, and sliding plate in one embodiment of a stacked hybrid rice cultivation device.

[0037] Figure 8 This is an exploded structural diagram of part of the flow guiding mechanism and part of the ventilation mechanism in one embodiment of a stacked hybrid rice cultivation device.

[0038] Figure 9 This is a schematic diagram of a portion of the conductive spray mechanism in one embodiment of a stacked hybrid rice cultivation device.

[0039] Figure 10 This is a schematic cross-sectional view of the conveying pipe in one embodiment of a stacked hybrid rice cultivation device.

[0040] In the diagram: 1. Support; 2. Lifting plate; 3. Incubator; 4. Fixing plate; 5. Support ring; 6. Rotating rod; 7. Delivery pipe; 8. Nozzle; 9. Cylinder; 10. Sealing plate; 1001. Through hole; 11. First lead screw; 12. First threaded sleeve; 13. Support plate; 1301. Slide groove; 1302. Corrugated groove; 14. Guide column; 15. Guide sleeve; 16. Sliding plate; 17. Fan; 18. Air guide plate; 19. Second lead screw; 20. Second threaded sleeve; 21. Connecting plate; 22. Support column; 23. Movable sleeve; 24. Limiting column; 25. Hinge rod; 26. Push rod. Detailed Implementation

[0041] 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.

[0042] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0043] Please see Figures 1-10 In this embodiment of the invention, a stacked hybrid rice cultivation device includes:

[0044] A support 1, and a plurality of lifting plates 2 fixed on the support 1 and distributed vertically at equal intervals, wherein an incubator 3 is fixed on the lifting plates 2;

[0045] Also includes:

[0046] A spraying mechanism is installed on the lifting plate 2 and is used to perform spraying action on the rice.

[0047] A lifting and translating mechanism is mounted on the bracket 1, and symmetrically arranged support plates 13 are connected to the lifting and translating mechanism.

[0048] A ventilation mechanism is provided on the support plate 13. The ventilation mechanism includes two sets of symmetrically arranged air guide plates 18. The support plate 13 is also provided with a flow guiding mechanism. When the ventilation mechanism drives the air guide plates 18 to move in the horizontal direction, the flow guiding mechanism can adjust the sway angle of the air guide plates 18 to guide the airflow to perform mutual impact.

[0049] Specifically, in rice breeding, to ensure normal growth, hybrid rice needs to be fertilized with solutions such as water and fertilizer. To ensure uniform spraying of the rice in the cultivation box 3, the spraying mechanism ensures that the solution is pumped at the same pressure and the pumping direction is constantly changed to prevent spray dead zones, which could lead to poor rice growth. After fertilization, foliar fertilizer is also applied to the rice. Through leaf absorption, it quickly replenishes nutrients, promoting seedling growth. At this time, the lifting mechanism controls the support plate 13 to move to the required fertilization position in the lowest cultivation box 3, and the foliar fertilizer is sprayed from the side of the seedlings through an atomizer. The ventilation mechanism provides bidirectional airflow to the rice. At the same time, the ventilation mechanism also drives the flow guiding mechanism to move. The air guide plate 18 is controlled to swing back and forth to converge and diffuse the airflow, so that the two opposing airflows collide with each other with periodically changing wind pressure. When the converging airflow acts on the rice, it can force the rice to sway. When the converging airflow and the diffused airflow collide, the blown gas can pass smoothly through the gap between the layers and act on the bottom layer of the rice. Since the two air pressures are always changing periodically, the rice can sway randomly to ensure that the airflow carries the atomized foliar fertilizer smoothly through the gaps between the rice stalks, thereby ensuring that the foliar fertilizer can adhere smoothly to the lower leaves. After the fertilization of the cultivation box 3 is completed, the lifting mechanism controls the support plate 13 to move to the fertilization position of the next cultivation box 3, and under the action of the ventilation mechanism and the air guiding mechanism, the fertilization action is performed again until the rice in all cultivation boxes 3 is fertilized.

[0050] Please see Figure 1 , Figure 2 , Figure 9 , Figure 10The guiding spray mechanism includes a support ring 5 fixed to the bottom of the lifting plate 2. A conveying pipe 7 is rotatably installed inside the support ring 5. A rotating rod 6, which is rotatably connected to the lifting plate 2, is fixed to the side end of the conveying pipe 7. The guiding spray mechanism also includes a plurality of nozzles 8 that are connected to the outer circumference of the conveying pipe 7 and are distributed at equal intervals. A cylinder 9 is fixed to the side end of the conveying pipe 7. The telescopic end of the cylinder 9 passes through the conveying pipe 7 and is fixed with a sealing plate 10 that fits against the inner circumference of the conveying pipe 7. A plurality of guiding holes 1001 are formed on the sealing plate 10 that are distributed at equal intervals and are guided and cooperate with the nozzles 8.

[0051] Please see Figure 10 In detail, a pressure sensor is installed inside the delivery pipe 7. In the initial state, under the action of the cylinder 9, the sealing plate 10 is tightly attached to the inner wall of the delivery pipe 7, and the through hole 1001 and the nozzle 8 are misaligned so that the nozzle 8 is in a blocked state.

[0052] To accelerate the breeding rate, hybrid rice needs to be fertilized. The fertilization solution can be delivered into the delivery pipe 7. Since the nozzles 8 are blocked, the pressure inside the delivery pipe 7 will gradually increase. When the delivery pipe 7 is full of solution and the pressure sensor detects that the pressure inside the delivery pipe 7 has reached a set threshold, the cylinder 9 operates and drives the sealing plate 10 to move, thereby moving the through hole 1001. When the through hole 1001 moves to the position where it connects with the nozzles 8, the cylinder 9 stops operating. At this time, the solution can be discharged through multiple nozzles 8 at the same pressure, ensuring that there is no pressure gradient in the delivery pipe 7, which would result in inconsistent discharge from multiple nozzles 8, leading to inconsistent fertilization and differences in rice growth.

[0053] Meanwhile, the rotating rod 6 can be driven by an external motor to reciprocate at a certain angle, and the spraying angle of the nozzle 8 can be adjusted by the delivery pipe 7, so that the solution sprayed by the nozzle 8 can evenly cover the entire incubator 3, thereby avoiding dead spraying angles and further ensuring the uniformity of the rice growth environment.

[0054] Preferably, after the solution is sprayed, a solution for providing other trace elements or other components required for growth can be added to the delivery pipe 7, and the solution can be sprayed onto the rice in the same manner as described above, so as to further improve the breeding effect. Water can also be delivered into the delivery pipe 7 during the breeding process, and the water can be sprayed into the breeding area in the form of atomization through the nozzle 8 to ensure that the growth conditions of the rice are in the optimal humidity range during the breeding process.

[0055] Please see Figures 1-4The lifting mechanism includes a fixed plate 4 fixed on the bracket 1, a first lead screw 11 rotatably mounted on the fixed plate 4, a first threaded sleeve 12 threadedly connected to the first lead screw 11 and fixedly connected to the support plate 13, and the lifting mechanism also includes a guide column 14 fixed on the fixed plate 4, and a guide sleeve 15 fixedly connected to the support plate 13 is axially slidable on the guide column 14.

[0056] It should be noted that an atomizer for applying atomized foliar fertilizer is installed on the sliding plate 16. When fertilizing rice, the height of the support plate 13 needs to be adjusted according to the height of different culture boxes 3. When the height of the support plate 13 needs to be adjusted, the first lead screw 11 can be driven to rotate by an external motor, thereby driving the first threaded sleeve 12 to move. Under the action of the first threaded sleeve 12, the support plate 13 is driven to move, thereby driving the guide sleeve 15 to slide along the axial direction of the guide column 14. The guide sleeve 15 and the guide column 14 have a guiding function, which can ensure that the first threaded sleeve 12 can only move along the length direction of the first lead screw 11 and will not rotate with the first lead screw 11. When the support plate 13 drives the ventilation mechanism and the atomizer to the fertilization position required by one of the culture boxes 3, the first lead screw 11 stops rotating. At this time, the rice can be fertilized through the ventilation mechanism and the atomizer.

[0057] After the fertilization of the incubator 3 is completed, the first lead screw 11 continues to rotate and adjusts the height of the support plate 13 again, so that the support plate 13 moves to the fertilization position required for the next incubator 3. The above steps are repeated to fertilize the rice in all incubators 3. The first lead screw 11 has a self-locking effect. When the first lead screw 11 stops rotating, the position of the support plate 13 will not change, thus ensuring the stability of the ventilation mechanism.

[0058] Please see Figures 1-5 , Figure 7 The ventilation mechanism includes a groove 1301 formed on the support plate 13, a sliding plate 16 rotatably connected to the air guide plate 18 is slidably installed in the groove 1301, a fan 17 is fixed on the sliding plate 16, and the ventilation mechanism also includes a second lead screw 19 rotatably installed on the support plate 13, a second threaded sleeve 20 is threadedly connected to the second lead screw 19, and a connecting plate 21 for driving the sliding plate 16 to slide is fixed on the second threaded sleeve 20.

[0059] Please see Figures 1-8The flow guiding mechanism includes a support column 22 fixed on the connecting plate 21. The support column 22 has a movable sleeve 23 that slides axially. The movable sleeve 23 has hinged rods 25 that are symmetrically arranged on both sides. The ends of the hinge rods 25 are rotatably mounted with push rods 26 that are rotatably connected to the air guide plate 18. The flow guiding mechanism also includes a corrugated groove 1302 formed on the support plate 13. The movable sleeve 23 has a limiting post 24 that slides and engages with the corrugated groove 1302.

[0060] Please see Figure 4 , Figure 5 Furthermore, the corrugated groove 1302 is composed of multiple symmetrically arranged oblique grooves, and the two corrugated grooves 1302 are formed on the support plate 13 with the same direction and size. The support plate 13, support column 22, air guide plate 18, fan 17, etc. are all symmetrically arranged. Therefore, the two fans 17 can be limited to front-end air supply and rear-end air supply respectively. In the initial state, under the action of the second screw 19, the sliding plate 16 is controlled by the second threaded sleeve 20 and the connecting plate 21 to be located at the end of the stroke facing the first threaded sleeve 12, and the sliding plate 16 is located at the end of the stroke on the side of the sliding groove 1301. Under the action of the connecting plate 21, the limiting column 24 is controlled by the support column 22 and the movable sleeve 23 to be located in the middle position of one of the oblique grooves on the side of the corrugated groove 1302 facing the first threaded sleeve 12. Thus, the two air guide plates 18 for front-end air supply and the two air guide plates 18 for rear-end air supply are controlled by the hinge rod 25 and the push rod 26 to be in a parallel state.

[0061] When fertilization is required for rice, the atomizer operates, applying atomized foliar fertilizer to the sides of the seedlings. Simultaneously, both fans 17 operate at the same power, ensuring identical airflow and force. The second lead screw 19 operates, driving the second threaded sleeve 20 to move. This, via the connecting plate 21, causes the sliding plate 16 to slide along the length of the groove 1301, allowing the two fans 17 and the two sets of guide vanes 18 to move synchronously along the side wall of the cultivation box 3. Simultaneously, the connecting plate 21 also drives the support column 22 to move, which in turn drives the limiting column 24 via the movable sleeve 23. Since the two corrugated grooves 1302 have the same opening size and direction, and the two connecting plates 21... The two support columns 22 are symmetrical. In this case, one of the limiting columns 24 at the front air supply end will control the movable sleeve 23 connected to it to slide along the axial direction of the support column 22 under the action of the corrugated groove 1302, and move away from the connecting plate 21. Thus, the two air guide plates 18 will be controlled to swing away from each other through the hinge rod 25 and the push rod 26. Similarly, the other limiting column 24 at the rear air supply end will control the movable sleeve 23 connected to it to slide along the axial direction of the support column 22 under the action of the corrugated groove 1302, and move towards the connecting plate 21. Thus, the two air guide plates 18 will be controlled to swing towards each other through the hinge rod 25 and the push rod 26.

[0062] The increased angle between the two guide vanes 18 at the front end of the air supply allows the guide vanes 18 to diffuse the airflow, thus reducing the pressure on the airflow delivered by the fan 17. Conversely, the decreased angle between the two guide vanes 18 at the rear end of the air supply allows the guide vanes 18 to converge the airflow, thereby pressurizing the airflow delivered by the fan 17. This pressurized airflow promotes swaying of the densely growing rice plants and increases the distance between the rice stalks, ensuring that the lower leaves of the seedlings can fully contact the atomized foliar fertilizer carried by the airflow. When the pressurized and depressurized airflows collide, the different velocities of the two gases create turbulent vortices, causing the rice plants to sway freely in an irregular manner. This further increases the permeability of the airflow in the lower layer of the rice plant. Simultaneously, the impact of the airflow also diffuses excess moisture remaining in the lower layer of the rice plant to the upper layer, preventing excessive moisture in the lower layer from causing poor rice growth and allowing for the reuse of excess moisture, thus achieving an environmentally friendly effect.

[0063] Meanwhile, the angle between the two air guide plates 18 at the front end increases, which can also converge and accelerate the lateral airflow through the side that is far apart from each other. Similarly, the angle between the two air guide plates 18 at the rear end decreases, which can diffuse and slow down the lateral airflow through the side that is far apart from each other, thereby further increasing the fertilization effect.

[0064] When both limiting posts 24 move to the most protruding position of the corrugated groove 1302, the included angle between the two air guide plates 18 of the front air supply reaches its maximum, and the included angle between the two air guide plates 18 of the rear air supply reaches its minimum. At this time, the limiting posts 24 continue to move, which increases the included angle between the two air guide plates 18 of the front air supply and decreases the included angle between the two air guide plates 18 of the rear air supply, thereby controlling the two airflows to change periodically and counteract each other.

[0065] Preferably, by continuously adjusting the sway angle of the wind guide plate 18, the two airflows can be concentrated under high pressure and diffused under low pressure. The high-pressure concentrated airflow "sprays" the airflow into the interior of the rice plant canopy, causing the rice stalks to temporarily tilt or vibrate, thereby increasing the spacing between the stalks. The low-pressure diffused airflow prolongs the airflow circulation time, allowing the atomized foliar fertilizer to adhere smoothly to the lower leaves. The periodic pressure fluctuations simulate natural gusts, causing the spacing between the rice stalks to fluctuate continuously, and the alternating wind speeds avoid the problem of rice stalks lodging caused by continuous strong winds, thereby improving breeding efficiency.

[0066] A method for cultivating layered hybrid rice includes the following steps:

[0067] Step 1: Spray the required nutrient solution and water downwards from the top of incubator 3 through the conductive spray mechanism;

[0068] Step 2: At the same time, foliar fertilizer is sprayed from the side of the rice through the atomizer. Under the action of the lifting mechanism, the height of the ventilation mechanism is adjusted by the support plate 13. The atomizer will move synchronously with the ventilation mechanism and provide bidirectional counter-current wind to the rice under the action of the ventilation mechanism. It will also move continuously along the length of the support plate 13, so that the atomized foliar fertilizer can be smoothly adhered to the leaves between the stems.

[0069] Step 3: The ventilation mechanism will also drive the flow guiding mechanism to move. Under the action of the flow guiding mechanism, the deflection angle of the air guide plate 18 is adjusted, thereby continuously gathering and diffusing the airflow, so that the two airflows collide with each other with different wind pressures.

[0070] Step 4: After the foliar fertilizer has been completely sprayed on the culture box 3, the lifting mechanism controls the ventilation mechanism to move to the position of the next culture box 3 through the support plate 13, and performs fertilization again.

[0071] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stacked hybrid rice cultivation device, comprising: A support frame, and a plurality of lifting plates fixed to the support frame and distributed vertically at equal intervals, with an incubator fixed on the lifting plates; characterized in that it further includes: The spraying mechanism is installed on the lifting plate and is used to spray water onto the rice. A lifting and translating mechanism is mounted on a support frame, and symmetrically arranged support plates are connected to the lifting and translating mechanism. The ventilation mechanism is mounted on the support plate. The ventilation mechanism includes two sets of symmetrically arranged air guide plates. The support plate is also equipped with a flow guiding mechanism. When the ventilation mechanism drives the air guide plates to move in the horizontal direction, the flow guiding mechanism can adjust the deflection angle of the air guide plates to guide the airflow to perform mutual impact. The ventilation mechanism includes a groove on the support plate, a sliding plate rotatably connected to the air guide plate is slidably installed in the groove, and a fan is fixed on the sliding plate; the ventilation mechanism also includes a second lead screw rotatably installed on the support plate, a second threaded sleeve is threadedly connected to the second lead screw, a connecting plate for driving the sliding plate to slide is fixed on the second threaded sleeve, and an atomizer for applying atomized foliar fertilizer is installed on the sliding plate. The flow guiding mechanism includes a support column fixed to the connecting plate, a movable sleeve that slides axially on the support column, and hinge rods that are symmetrically arranged on both sides of the movable sleeve. A push rod that is rotatably connected to the end of the hinge rod is mounted on the end of the hinge rod and is rotatably connected to the air guide plate. The flow guiding mechanism also includes a corrugated groove formed on the support plate, and a limiting column that slides into the corrugated groove is fixed on the movable sleeve. The corrugated groove is composed of multiple symmetrically arranged oblique grooves. The two corrugated grooves formed on the support plate have the same direction and size. The support plate, support column, air guide plate, and fan are symmetrically arranged. The two fans are used for front-end air supply and rear-end air supply, respectively. The angle between the two guide vanes at the front end increases, which reduces the pressure of the airflow delivered by the fan. The angle between the two guide vanes at the rear end decreases, which pressurizes the airflow delivered by the fan. The pressurized airflow promotes the swaying of densely growing rice and increases the distance between rice stalks. Due to the different flow velocities of the two gases, the airflows collide to generate turbulent vortices. The support plate is moved to the fertilization position by the lifting and translation mechanism. Under the action of the ventilation mechanism, it provides bidirectional blowing force to the rice. The ventilation mechanism also drives the flow guiding mechanism to move and control the wind guide plate to swing back and forth to converge and diffuse the airflow. This causes the two opposing airflows to collide with each other with periodically changing wind pressure, so that the blown gas can pass smoothly through the interlayer gap and act on the bottom layer of the rice, causing the rice to sway randomly.

2. The stacked hybrid rice cultivation device according to claim 1, characterized in that, The lifting and translating mechanism includes a fixed plate fixed on the bracket, a first lead screw rotatably mounted on the fixed plate, and a first threaded sleeve threadedly connected to the first lead screw and fixedly connected to the support plate.

3. The stacked hybrid rice cultivation device according to claim 2, characterized in that, The lifting and translating mechanism also includes a guide column fixed on the fixed plate, and the guide column has a guide sleeve that is fixedly connected to the support plate and slides axially.

4. The stacked hybrid rice cultivation device according to claim 1, characterized in that, The guiding spray mechanism includes a support ring fixed to the bottom of the lifting plate, a conveying pipe rotatably installed inside the support ring, and a rotating rod fixed to the side end of the conveying pipe and rotatably connected to the lifting plate.

5. The stacked hybrid rice cultivation device according to claim 4, characterized in that, The guiding spray mechanism also includes a plurality of nozzles connected to the outer circumference of the conveying pipe and distributed at equal intervals. A cylinder is fixed to the side end of the conveying pipe. The telescopic end of the cylinder passes through the conveying pipe and is fixed with a sealing plate that fits against the inner circumference of the conveying pipe. A plurality of guiding holes are formed on the sealing plate, which are distributed at equal intervals and cooperate with the nozzles.

6. A method for cultivating layered hybrid rice, employing the layered hybrid rice cultivation device as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Spray the required nutrient solution and water downwards from the top of the incubator through the conductive spray mechanism; Step 2: At the same time, foliar fertilizer is sprayed from the side of the rice through the atomizer. Under the action of the lifting and translating mechanism, the height of the ventilation mechanism is adjusted by the support plate. The atomizer will move synchronously with the ventilation mechanism and provide bidirectional counter-current wind to the rice under the action of the ventilation mechanism. It also moves continuously along the length of the support plate, so that the atomized foliar fertilizer can be smoothly adhered to the leaves between the stems. Step 3: The ventilation mechanism will also drive the flow guiding mechanism to move. Under the action of the flow guiding mechanism, the deflection angle of the air guide plate is adjusted, thereby continuously gathering and diffusing the airflow, so that the two airflows collide with each other with different wind pressures. Step 4: After the foliar fertilizer has been completely sprayed on the current culture box, the lifting and translation mechanism controls the ventilation mechanism to move to the next culture box position via the support plate, and performs fertilization again.

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