Rice seedling raising device capable of preventing root damage

Abstract

This application relates to the technical field of rice seedling cultivation, and in particular to a rice seedling cultivation device that avoids root damage. The device includes a seedling box with a seedling chamber and a nutrient chamber connected by a filter. The seedling chamber contains, from top to bottom, a soil layer, a quartz layer, a fine sand layer, a second non-woven fabric layer, a filter cotton layer, and another non-woven fabric layer. A matrix of seedling pits is arranged at the top of the soil layer. The seedling box also includes a U-shaped trough with a spray nozzle installed inside. A circulation component is fitted to one side of the seedling box to transport the nutrient solution from the nutrient chamber to the U-shaped pipe. The circulation component and spray nozzles ensure uniform spraying of the nutrient solution, while the multi-layer filtration structure allows excess nutrient solution to circulate back, precisely controlling nutrient supply and preventing root rot due to excessive nutrient solution or necrosis due to insufficient nutrient solution. This also saves resources and stabilizes the nutrient environment. Simultaneously, the layered substrate improves air and water permeability, simplifies operation, and ensures healthy root growth.

Description

Technical Field

[0001] This application relates to the technical field of rice seedling cultivation, and in particular to a rice seedling cultivation device that avoids root damage. Background Technology

[0002] Rice (scientific name: Oryza sativa L.) is an annual herbaceous plant belonging to the genus Oryza in the family Poaceae. As a staple crop for nearly half of the world's population, its seedling stage requires extremely precise control over the growing environment. During the germination to the three-leaf stage, rice seedlings have delicate and fragile root systems, resulting in weak absorption of water and nutrients. They are also significantly more sensitive to soil aeration and nutrient solution concentration than mature plants. Improper care during this stage can easily hinder root development, directly impacting subsequent transplant survival rates and final yield.

[0003] In current rice seedling cultivation, traditional methods rely heavily on manual experience to control the amount of nutrient solution applied. On the one hand, excessive application can lead to saturation of the seedling substrate, obstructed air circulation, and a "root-suffocating" environment, causing root rot due to oxygen deficiency. Excessive nutrient solution can also cause soil salt accumulation, scorching young roots. On the other hand, insufficient application cannot meet the seedlings' needs for nitrogen, phosphorus, potassium, and trace elements, resulting in sluggish root growth, decreased vitality, and ultimately, yellowing and wilting of seedlings due to nutrient deficiencies. Furthermore, traditional seedling cultivation devices lack a nutrient solution recycling mechanism, leading to resource waste and difficulty in maintaining stable nutrient concentrations in the substrate, further exacerbating root damage or poor development. Therefore, we propose a rice seedling cultivation device that avoids root damage. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides a rice seedling raising device that avoids root damage.

[0005] This application provides a rice seedling raising device that avoids root damage, employing the following technical solution:

[0006] Optional features include seedling trays, and also:

[0007] The seedling chamber and the nutrient chamber are both located inside the seedling box and are connected by several filter holes.

[0008] The filter cotton layer is set inside the seedling cavity, and the upper and lower sides of the filter cotton layer are respectively provided with a second non-woven fabric layer and a first non-woven fabric layer. The second non-woven fabric layer is provided with a fine sand layer, a quartz layer and a soil layer in sequence, and the top of the soil layer is provided with several seedling pits.

[0009] A spiral groove is provided inside the seedling box, and a spiral tube is provided inside the spiral groove. Several nozzles are threaded on both sides of the spiral tube, and one end of the nozzle is located inside the seedling cavity and above the soil layer.

[0010] A circulation assembly is installed on one side of the seedling box and is used to transport the nutrient solution in the nutrient chamber to the U-shaped tube.

[0011] Optionally, the loop component includes:

[0012] A fixing plate is fixedly installed on one side of the seedling box. A water pump is fixedly installed on the fixing plate. A delivery pipe is fixedly installed at the water outlet of the water pump, and one end of the delivery pipe extends into the seedling box and is connected to the U-shaped pipe.

[0013] A water suction pipe is fixedly installed on the water inlet end of the water pump, and one end of the water suction pipe passes through one side of the seedling box and extends into the nutrient chamber.

[0014] Optionally, the filtration accuracy of the filter holes is 0.01-0.05cm, and the seedling pits are arranged in a matrix.

[0015] Optionally, the seedling chamber is located above the nutrient chamber, and the water suction pipe is connected to the nutrient chamber.

[0016] Optionally, the number of the aforementioned nozzles is at least 5-10 to ensure that the nutrient solution is sprayed evenly onto the soil layer, which will absorb the nutrient solution and be absorbed by the roots of the rice seedlings in the seedling pit.

[0017] Optionally, the first nonwoven fabric layer is attached to the bottom of the seedling box to ensure the structural stability of the first nonwoven fabric layer.

[0018] Optionally, the dimensions of the spiral groove and the spiral tube are equal to ensure the structural stability of the spiral tube.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] (1) This utility model can evenly spray the nutrient solution in the nutrient chamber onto the soil layer through the combination of the circulation component, the U-shaped pipe and the nozzle, ensuring that the seedling roots in the seedling pit can stably absorb nutrients. This avoids the root hypoxia and rot caused by excessive dosage during manual irrigation, as well as the root necrosis caused by insufficient dosage.

[0021] (2) In this invention, excess nutrient solution is filtered through layers of quartz, fine sand, non-woven fabric layer two, filter cotton, and non-woven fabric layer one, and then flows back to the nutrient chamber through the filter holes, forming a closed-loop cycle. This process not only reduces the waste of nutrient solution, but also maintains the stability of nutrient concentration in the seedling substrate, avoiding stimulation of seedling roots due to concentration fluctuations during a single irrigation, and providing a continuous and balanced nutritional environment for root growth.

[0022] (3) The layered design of the seedling cavity of this utility model, consisting of a non-woven fabric layer 1, a filter cotton layer, a non-woven fabric layer 2, a fine sand layer, a quartz layer, and a soil layer, can block impurities through the filter structure and prevent the filter holes from clogging. It can also improve the air permeability and water permeability of the substrate and avoid water accumulation and root suffocation in the substrate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0024] Figure 2 This is one of the detailed internal structural diagrams of the seedling box in the embodiments of this application;

[0025] Figure 3 This is the second detailed internal structural diagram of the seedling box in the embodiments of this application;

[0026] Figure 4 This is an embodiment of the present application. Figure 3 An enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the seedling box in an embodiment of this application.

[0028] Attached diagram labels: 1. Seedling box; 11. Seedling cavity; 12. Nutrient cavity; 13. U-shaped trough; 14. Filter hole; 2. Non-woven fabric layer one; 3. Filter cotton layer; 4. Non-woven fabric layer two; 5. Fine sand layer; 6. Quartz layer; 7. Soil layer; 8. U-shaped pipe; 81. Sprinkler head; 9. Fixing plate; 91. Water pump; 92. Delivery pipe; 93. Suction pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a rice seedling raising device that avoids root damage.

[0031] like Figures 1-4 As shown, it includes seedling tray 1, and also includes:

[0032] The seedling chamber 11 and the nutrient chamber 12 are both located inside the seedling box 1, and the seedling chamber 11 and the nutrient chamber 12 are connected by a number of filter holes 14.

[0033] The filter cotton layer 3 is set inside the seedling cavity 11, and the upper and lower sides of the filter cotton layer 3 are respectively provided with non-woven fabric layer 2 4 and non-woven fabric layer 1 2. On the non-woven fabric layer 2 4, there are fine sand layer 5, quartz layer 6 and soil layer 7 in sequence. Several seedling pits are opened on the top of the soil layer 7.

[0034] A spiral groove 13 is provided inside the seedling box 1, and a spiral tube 8 is provided inside the spiral groove 13. Several nozzles 81 are threaded on both sides of the spiral tube 8, and one end of the nozzle 81 is located inside the seedling cavity 11 and above the soil layer 7.

[0035] A circulation component is installed on one side of the seedling box 1 and is used to transport the nutrient solution in the nutrient chamber 12 to the U-shaped tube 8.

[0036] The circulation system ensures that workers can pre-fill the nutrient solution into the nutrient chamber 12. Then, workers can place several rice seedlings into several seedling pits. By activating the circulation system, the nutrient solution in the nutrient chamber 12 is transported to the loop pipe 8. Under hydraulic pressure, the nutrient solution in the loop pipe 8 is evenly sprayed onto several soil layers 7 through several nozzles 81. The soil layers 7 absorb the nutrient solution, which is then absorbed by the roots of the rice seedlings in the seedling pits. Excess nutrient solution is filtered through layers of quartz layer 6, fine sand layer 5, non-woven fabric layer 2, filter cotton layer 3, and non-woven fabric layer 2, and then enters the nutrient chamber 12 through several filter holes 14, preventing excessive nutrient solution from remaining in the soil layers 7. Workers only need to activate the circulation system once a week, solving the problems of excessive nutrient solution causing root damage to rice seedlings or insufficient nutrient solution causing root necrosis.

[0037] Please see Figure 2 The loop component includes:

[0038] A fixing plate 9 is fixedly installed on one side of the seedling box 1. A water pump 91 is fixedly installed on the fixing plate 9. A conveying pipe 92 is fixedly installed at the water outlet end of the water pump 91, and one end of the conveying pipe 92 extends into the seedling box 1 and is connected to the U-shaped pipe 8.

[0039] The water suction pipe 93 is fixedly installed on the water inlet end of the water pump 91, and one end of the water suction pipe 93 passes through one side of the seedling box 1 and extends into the nutrient chamber 12.

[0040] The pump 91 can be powered on and started by connecting it to the power supply. The pump 91 draws nutrient solution from the nutrient chamber 12 through the suction pipe 93 and delivers it to the loop pipe 8 through the delivery pipe 92. Under the action of hydraulic pressure, the nutrient solution in the loop pipe 8 is evenly sprayed onto several soil layers 7 through several nozzles 81, ensuring that the soil layer 7 absorbs the nutrient solution and is absorbed by the roots of the rice seedlings in the seedling pit.

[0041] Please see Figures 3-4 The filtration accuracy of filter hole 14 is 0.01-0.05cm, and several seedling pits are arranged in a matrix.

[0042] Ensure that filter holes 14 can filter impurities in the nutrient solution. The matrix arrangement of the seedling pits ensures that the roots of the rice seedlings do not compete for nutrient solution absorption.

[0043] The seedling chamber 11 is located above the nutrient chamber 12, and the water suction pipe 93 is connected to the nutrient chamber 12.

[0044] Ensure that the water pump 91 draws nutrient solution from the nutrient chamber 12 through the suction pipe 93.

[0045] The number of nozzles 81 is at least 5-10 to ensure that the nutrient solution can be sprayed evenly on the soil layer 7, which will absorb the nutrient solution and be absorbed by the roots of the rice seedlings in the seedling pit.

[0046] The non-woven fabric layer 2 is attached to the bottom of the seedling box 1 to ensure the structural stability of the non-woven fabric layer 2.

[0047] The dimensions of the spiral groove 13 and the spiral tube 8 are equal to ensure the structural stability of the spiral tube 8.

[0048] The implementation principle of the rice seedling raising device that avoids root damage in this application embodiment is as follows:

[0049] Workers can pre-fill the nutrient solution into the nutrient chamber 12. Then, they can place several rice seedlings into several seedling pits. Next, the water pump 91 is powered on and started. The pump 91 draws the nutrient solution from the nutrient chamber 12 through the suction pipe 93 and transports it to the loop pipe 8 through the delivery pipe 92. Under hydraulic pressure, the nutrient solution in the loop pipe 8 is evenly sprayed onto several soil layers 7 through several nozzles 81. The soil layers 7 absorb the nutrient solution and are absorbed by the roots of the rice seedlings in the seedling pits. The excess nutrient solution is absorbed by the soil, and then filtered through layers of quartz layer 6, fine sand layer 5, non-woven fabric layer 2 4, filter cotton layer 3 and non-woven fabric layer 2, and enters the nutrient chamber 12 through several filter holes 14. This prevents excessive nutrient solution from remaining in the soil layer 7. The staff only needs to activate the circulation component once a week, which solves the problem that the rice seedlings' roots are often damaged due to excessive nutrient solution or die due to insufficient nutrient solution.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rice seedling raising device for avoiding root damage, comprising a seedling raising box (1), characterized in that, Also includes: The seedling chamber (11) and the nutrient chamber (12) are both located inside the seedling box (1) and are connected by several filter holes (14). A filter cotton layer (3) is set inside the seedling cavity (11), and a non-woven fabric layer two (4) and a non-woven fabric layer one (2) are respectively provided on the upper and lower sides of the filter cotton layer (3). A fine sand layer (5), a quartz layer (6) and a soil layer (7) are arranged on the non-woven fabric layer two (4) in sequence. Several seedling pits are opened on the top of the soil layer (7). A spiral groove (13) is provided in the seedling box (1), and a spiral tube (8) is provided in the spiral groove (13). Several nozzles (81) are threaded on both sides of the spiral tube (8), and one end of the nozzle (81) is located in the seedling cavity (11) and above the soil layer (7). A circulation assembly is installed on one side of the seedling box (1) and is used to transport the nutrient solution in the nutrient chamber (12) to the U-shaped tube (8).

2. The rice seedling raising device according to claim 1, wherein: The loop component includes: A fixing plate (9) is fixedly installed on one side of the seedling box (1). A water pump (91) is fixedly installed on the fixing plate (9). A conveying pipe (92) is fixedly installed at the water outlet end of the water pump (91), and one end of the conveying pipe (92) extends into the seedling box (1) and is connected to the U-shaped pipe (8). The water suction pipe (93) is fixedly installed on the water inlet end of the water pump (91), and one end of the water suction pipe (93) passes through one side of the seedling box (1) and extends into the nutrient chamber (12).

3. The rice seedling raising device according to claim 1, wherein: The filtration accuracy of the filter hole (14) is 0.01-0.05cm, and the seedling pits are arranged in a matrix.

4. The rice seedling raising apparatus according to claim 2, wherein: The seedling chamber (11) is located above the nutrient chamber (12), and the water suction pipe (93) is connected to the nutrient chamber (12).

5. The rice seedling raising device according to claim 1, wherein: The number of the aforementioned nozzles (81) is at least 5-10.

6. The rice seedling raising device according to claim 1, wherein: The non-woven fabric layer (2) is attached to the bottom of the seedling box (1).

7. The rice seedling raising device according to claim 1, wherein: The dimensions of the spiral groove (13) and the spiral tube (8) are the same.

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