Seedling pot body disc structure and method for preventing root stringing during seedling raising
Patent Information
- Application Number
- CN202611097928.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-23
- Publication Date
- 2026-09-04
AI Technical Summary
[0003]现有传统秧苗钵体盘为满足育秧排水与通气需求，钵体底部普遍采用直通式开孔结构，该结构无任何根系阻挡与限位机制，幼苗根系可无阻碍地直接穿出钵体底部，极易造成盘底扎根、根系外窜蔓延，致使钵体之间、盘体下方根系相互缠绕交织，破坏单钵独立育苗的隔离效果；同时，传统秧苗钵体内壁为光滑平面，根系生长缺乏定向约束与物理阻隔，生长过程中极易贴附钵壁、沿内壁横向环绕蔓延，导致根系大量聚集依附于钵体侧壁，钵体中心根量稀少、根团结构疏松、整体性差，起苗、转运及机插移栽过程中极易出现散坨、掉土、根团破损等问题，影响秧苗成型质量与机械化移栽效果
[0015] 1. The guide strips and guide grooves on the inner wall of the seedling pot prevent the roots from growing horizontally around the wall. The petal-shaped base plate and Y-shaped ventilation gap at the tail of the seedling pot prevent the roots from penetrating downwards. The air layer formed by the support column enables air to be centered on the roots and inhibits the root hairs from growing downwards. The three structures work together to prevent root cross-rooting between pots and rooting at the bottom of the pot, ensuring that the root ball in each pot is independent and intact.
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Figure CN122680976A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of seedling tray cultivation technology, specifically to a seedling tray structure and a method for preventing root cross-contamination during seedling cultivation. Background Technology
[0002] The seedling tray, also known as the pot-shaped blanket-like seedling tray, is a special rigid plastic tray used for mechanized seedling raising of crops such as rice. Several independent concave pots are arranged in a matrix on the surface of the tray, with an overall structure of blanket on top and pots on the bottom, which can realize the bottom layer of pots and the top layer of blanket. The anti-root-crossing seedling raising method is a standardized seedling raising technology system with physical isolation, structural limitation, water and agronomic control as the core to prevent the seedling roots from intertwining between pots, at the bottom of the tray or on the surface of the tray, ensuring one seedling per pot, root and pot as one, and blanket that does not fall apart.
[0003] To meet the drainage and aeration requirements of seedling cultivation, traditional seedling trays typically employ a straight-through perforated structure at the bottom. This structure lacks any root obstruction or restraint mechanism, allowing seedling roots to penetrate directly through the bottom of the tray without hindrance. This easily leads to rooting at the bottom of the tray and outward spread of roots, causing roots to intertwine and entangle between trays and below the tray, thus undermining the isolation effect of independent seedling cultivation in individual trays. At the same time, the inner wall of traditional seedling trays is a smooth plane, and the lack of directional restraint and physical barriers for root growth makes it easy for roots to adhere to the tray wall and spread horizontally along the inner wall during growth. This results in a large accumulation of roots attached to the side walls of the tray, with sparse roots in the center of the tray, a loose root ball structure, and poor overall integrity. During seedling lifting, transportation, and machine transplanting, problems such as seedling breakage, soil loss, and root ball damage are very likely to occur, affecting the quality of seedling formation and the effectiveness of mechanized transplanting. Summary of the Invention
[0004] The purpose of this invention is to provide a seedling pot structure and a method for preventing root cross-contamination during seedling cultivation, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a seedling tray structure and a method for preventing root cross-contamination in seedling cultivation, comprising a seedling tray, a seedbed board, and positioning holes. A seedbed board is provided below the seedling tray. Positioning holes are evenly spaced on both sides of the outer wall of the seedling tray. These positioning holes cooperate with pins of a transplanting device for precise movement of the seedling tray. An array of seedling cavities is provided inside the seedling tray. Seedling pot heads are connected inside the seedling cavities. A seedling pot body is fixedly connected to the bottom of the seedling pot head. A seedling pot tail is fixedly connected to the bottom of the outer wall of the seedling pot body. Guide strips with equal included angles are connected to the inner wall of the seedling pot body, and a guide groove is provided on the side of the inner wall of the seedling pot body near the guide strips. A drainage groove is provided on the outer side of the top of the seedling pot tail, and a base plate with equal included angles is connected to the middle of the seedling pot tail. The connection area of the base plate is a breathable gap. A column is fixedly connected to the outer side of the bottom of the seedling pot tail, and the column and the inner wall of the seedbed board form an air layer.
[0006] Preferably, the guide strip is used to form a physical barrier, the guide groove is a longitudinal groove, used to guide the root system to grow downward along the groove, and the guide strip works in conjunction with the guide groove to prevent the root system from growing horizontally around the inner wall of the seedling pot.
[0007] The physical barrier formed by the guide strip and the longitudinal guide groove guides the roots to grow downward along the guide groove, preventing the roots from growing horizontally around the inner wall of the seedling pot and reducing the risk of horizontal root penetration.
[0008] Preferably, the substrate has a petal-shaped structure to prevent roots from passing through the tail of the seedling pot, the ventilation gap is Y-shaped to ensure drainage and ventilation, and the substrate can elastically deform to close the ventilation gap to prevent roots from squeezing the substrate through the ventilation gap.
[0009] When the seedling roots grow downwards and touch the petal-shaped substrate, the physical barrier and elastic deformation properties of the substrate prevent the roots from forcibly passing through the air-permeable gaps.
[0010] Preferably, the bottom end of the column is connected to the inner wall of the seedbed board to support the tail of the seedling pot, and the air layer is used to inhibit the continued growth of roots that extend out of the ventilation gap.
[0011] A small number of root hairs extending out of the ventilation gaps are directly in the air layer enclosed by the support column. The air-rooting effect inhibits their continued downward growth, prompting the root system to sprout lateral roots inside the seedling pot.
[0012] Preferably, the bottom end of the guide groove is connected to the drainage groove, and the inner wall of the drainage groove is connected to the ventilated gap, which is used to guide excess water in the guide groove to be quickly discharged from the ventilated gap.
[0013] Excess water flows into the drainage channel along the longitudinal guide groove and is finally discharged through the Y-shaped ventilation gap, preventing water from accumulating in the pot and causing root suffocation.
[0014] As can be seen from the above, the seedling pot structure and the seedling raising method for preventing root cross-contamination provided by the present invention have the following beneficial effects.
[0015] 1. The guide strips and guide grooves on the inner wall of the seedling pot prevent the roots from growing horizontally around the wall. The petal-shaped base plate and Y-shaped ventilation gap at the tail of the seedling pot prevent the roots from penetrating downwards. The air layer formed by the support column enables air to be centered on the roots and inhibits the root hairs from growing downwards. The three structures work together to prevent root cross-rooting between pots and rooting at the bottom of the pot, ensuring that the root ball in each pot is independent and intact.
[0016] 2. The bottom of the guide groove is connected to the drainage groove, and the drainage groove is connected to the ventilation gap. Excess water can quickly flow from the guide groove into the drainage groove and then be discharged through the ventilation gap, avoiding water accumulation in the pot. At the same time, it improves the aeration of the substrate, reduces the risk of root rot and root suffocation, and ensures the vitality of the seedling roots.
[0017] 3. The guide strips and guide grooves guide the roots to grow towards the center of the pot. The air-rooting effect promotes the sprouting of a large number of lateral roots, forming a tight and complete root ball, thus improving the transplant survival rate. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the seedling tray, seedling pot body, and the tail of the seedling pot of the present invention, viewed from below. Figure 3 This is a schematic diagram of the main sectional view of the seedling tray and seedbed board of the present invention; Figure 4 This is a top-view three-dimensional structural diagram of the seedling pot head and the seedling pot body of the present invention; Figure 5 This is a bottom-view three-dimensional structural diagram of the substrate, ventilation gap, and column of the present invention. Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the seedling pot head and the main body of the seedling pot of the present invention; Figure 7 This is a schematic diagram of the main sectional view of the head and body of the seedling pot of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the seedling pot tail, drainage trough, base plate, and ventilation gap of the present invention.
[0019] In the diagram: 1. Seedling tray; 2. Seedbed board; 3. Positioning hole; 4. Head of seedling pot; 5. Body of seedling pot; 6. Tail of seedling pot; 7. Guide strip; 8. Guide groove; 9. Drainage groove; 10. Base plate; 11. Breathing gap; 12. Column; 13. Air layer. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-8 The present invention provides a technical solution: a seedling tray structure and a seedling raising method for preventing root cross-contamination, including a seedling tray 1, a seedbed board 2 and positioning holes 3. The seedbed board 2 is provided below the seedling tray 1. The positioning holes 3 are evenly distributed on both sides of the outer wall of the seedling tray 1. The positioning holes 3 cooperate with the pins of the transplanting equipment to accurately move the seedling tray 1 and realize the precise alignment of mechanized seedling raising and transplanting operations.
[0022] The seedling tray 1 has an array of seedling cavities inside, and seedling pot heads 4 are connected inside the seedling cavities. The bottom of the seedling pot head 4 is fixedly connected to the seedling pot body 5, and the bottom of the outer wall of the seedling pot body 5 is fixedly connected to the seedling pot tail 6. The seedling pot head 4, the seedling pot body 5 and the seedling pot tail 6 are integrally injection molded and are shaped like an inverted frustum, wider at the top and narrower at the bottom, which facilitates filling the substrate and mechanical demolding.
[0023] The inner wall of the seedling pot body 5 is connected with guide strips 7 distributed at equal angles, and a guide groove 8 is opened on the inner wall of the seedling pot body 5 near the guide strips 7. The guide strips 7 are longitudinal protrusions, and the guide grooves 8 are corresponding longitudinal grooves. The guide strips 7 and guide grooves 8 are alternately distributed to form a composite structure of blocking and guiding. The guide strips 7 are used to form a physical barrier to break the root system's attachment growth path along the wall. The guide grooves 8 are longitudinal grooves used to guide the root system to grow downward along the groove. Even if the root system grows locally attached to the wall, it will be interrupted by the guide strips 7, making it difficult to make continuous lateral wrapping along the wall. The two work together to prevent the root system from growing laterally around the inner wall of the seedling pot body 5, avoiding the formation of a root network that spreads along the wall.
[0024] A drainage groove 9 is provided on the outer side of the top of the seedling pot 6. The drainage groove 9 is an annular groove. The bottom of the guide groove 8 is connected to the drainage groove 9. The inner wall of the drainage groove 9 is connected to the ventilation gap 11. This allows excess water in the guide groove 8 to quickly flow into the drainage groove 9 and then be discharged through the ventilation gap 11, thus achieving rapid drainage of water in the pot and preventing water accumulation and root suffocation.
[0025] The seedling pot has a base plate 10 with equal angles distributed in the middle of the tail 6. The base plate 10 has a petal-shaped structure. The area connected by the base plate 10 is a ventilation gap 11. The ventilation gap 11 is "Y" shaped. The base plate 10 can be elastically deformed. When the root system is squeezed, it can slightly close the ventilation gap 11 to prevent the root system from forcibly passing through. At the same time, it keeps the gap open under normal conditions to ensure drainage and ventilation performance. It not only achieves physical blocking of the root system, but also takes into account the needs of ventilation and drainage.
[0026] A support column 12 is fixedly connected to the outer side of the bottom end of the seedling pot 6. The bottom end of the support column 12 is connected to the inner wall of the seedbed board 2. It is used to support the bottom end of the seedling pot 6, so that a stable air layer 13 is formed between the bottom end of the seedling pot 6 and the seedbed board 2. A small number of root hairs extending out of the ventilation gap 11 can directly contact the air layer 13. The root hairs are inhibited from continuing to grow downward by the air. Even if a small number of root hairs extend downward, they are in the air gap and cannot receive soil moisture and nutrients. They cannot continue to grow or attach, which promotes the germination of lateral roots in the pot and the formation of a complete root ball. In addition, the surface of the support column 12 is smooth and the contact area is small, so the root hairs cannot hold on, thereby blocking the lateral spread path of the root hairs extending out of the ventilation gap 11.
[0027] This solution uses the guide strip 7 and guide groove 8 on the inner wall of the seedling pot body 5 to prevent the roots from growing horizontally around the wall; the petal-shaped base plate 10 and Y-shaped ventilation gap 11 at the tail of the seedling pot 6 can prevent the roots from penetrating downwards; the air layer 13 formed by the support column 12 can achieve air-root integration and inhibit root hair from growing downwards. The three structures work together to prevent root cross-rooting between pots and rooting at the bottom of the pot, ensuring that the root ball of each pot is independent and intact.
[0028] The bottom of the guide groove 8 is connected to the drainage groove 9, and the drainage groove 9 is connected to the ventilation gap 11. Excess water can quickly flow from the guide groove 8 into the drainage groove 9 and then be discharged through the ventilation gap 11, avoiding water accumulation in the pot, while improving the permeability of the substrate, reducing the risk of root rot and root suffocation, and ensuring the vitality of the seedling root system.
[0029] Guide strip 7 and guide groove 8 guide the roots to grow towards the center of the pot. The air-rooting effect promotes the sprouting of a large number of lateral roots, forming a tight and complete root ball, and improving the transplant survival rate.
[0030] Based on the above-mentioned seedling pot tray structure, the present invention also provides a seedling raising method for preventing root cross-contamination using the seedling pot tray structure, the specific steps of which are as follows: S1: Inspection and Placement of Seedling Trays: In advance, check that the overall structure of the seedling tray 1 and seedling pot is intact, and ensure that the guide strip 7, guide groove 8, petal base plate 10, and column 12 are undamaged or deformed, and that the ventilation gap 11 and drainage groove 9 are unobstructed; place the seedling tray 1 stably on top of the seedbed board 2, and use the column 12 to support the tail 6 of the seedling pot, so that a stable air layer 13 is formed between the tail 6 of the seedling pot and the seedbed board 2. At the same time, complete the overall positioning through the positioning holes 3 on both sides of the seedling tray 1, and ensure that the trays are tightly aligned without misalignment or gaps.
[0031] S2: Substrate filling operation: Select a suitable nutrient substrate for seedling raising, crush and sieve it to remove hard lumps and impurities, adjust the substrate moisture content to the state of being able to clump together when squeezed in the hand and crumble when dropped, and set it aside. Then fill the seedling raising substrate into the array of seedling chambers and seedling pots, with the filling height lower than the upper edge of the seedling pot head 4 to avoid the substrate overflowing into the pots and forming a connecting medium. After filling, scrape off the excess substrate on the surface of the trays and at the joints of the pots to prevent the roots from spreading laterally with the help of the surface soil, and at the same time ensure that the guide groove 8 and drainage groove 9 are not blocked by the substrate to ensure that the water drainage channels are unobstructed.
[0032] S3: Sowing and Covering: Sow a fixed amount of seeds in each seedling pot, control the sowing density, and avoid the seedlings being too dense, which would cause the roots to squeeze and extend outwards; after sowing, cover evenly with a thin layer of fine substrate, with a moderate soil covering thickness, without burying the joint position of the seedling pot head 4, reducing the conditions for the roots to spread laterally from the source, and ensuring that each pot is raised independently.
[0033] S4: Seedling water management: During the seedling stage, water is replenished by spraying, following the principle of rapid irrigation and drainage. Excess water flows into the drainage trough 9 along the longitudinal guide groove 8 and is finally discharged through the Y-shaped ventilation gap 11 to avoid water accumulation in the pot and root suffocation. During the seedling growth period, a dry-nurturing mode is adopted. Water is replenished only after the surface substrate is relatively dry. The physical barrier formed by the guide strip 7 and the longitudinal guide groove 8 guides the roots to grow downward along the guide groove 8, preventing the roots from growing horizontally around the inner wall of the seedling pot body 5 and reducing the risk of horizontal root penetration.
[0034] S5: Root blocking and air root training: When the seedling roots grow downwards and touch the petal-shaped substrate 10, the physical blocking and elastic deformation characteristics of the substrate 10 are used to prevent the roots from forcibly passing through the air gap 11; a small number of root hairs extending out of the air gap 11 are directly in the air layer 13 surrounded by the column 12, and are inhibited from continuing to grow downwards by the air root training effect, which promotes the germination of lateral roots inside the seedling pot, forming an independent and complete root ball, and realizing the integration of root and pot.
[0035] S6: Seedling hardening and management: After the seedlings mature, gradually reduce the water supply and carry out water-free hardening to allow the substrate in the pot to dry appropriately and further fix the root ball morphology; throughout the seedling raising process, stacking and pressing the seedling tray 1 is prohibited to prevent structural deformation, substrate squeezing and leakage, which may cause root cross-contamination; during transportation and machine operation, use the positioning hole 3 and the pin of the transplanting equipment to accurately move the seedlings, ensuring the integrity of the root ball in the pot and avoiding damage to the seedlings and breakage of the clump.
[0036] S7: Cleaning and storage of trays: After a single seedling raising operation is completed, clean the residual substrate and old roots in the guide groove 8, drainage groove 9, and ventilation gap 11. Check that the base plate 10 and column 12 are in good working order. After drying, store them to ensure stable anti-root cross-contamination performance when reused.
[0037] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.
Claims
1. A seedling tray structure, comprising a seedling tray (1), a seedbed board (2), and positioning holes (3), wherein the seedling tray (1) is provided below the seedbed board (2), and the seedling tray (1) has equally spaced positioning holes (3) on both sides of its outer wall, the positioning holes (3) cooperating with the pins of a rice transplanting device for precisely moving the seedling tray (1), characterized in that: The seedling tray (1) has an array of seedling cavities inside, and a seedling pot head (4) is connected inside the seedling cavities. The bottom of the seedling pot head (4) is fixedly connected to the seedling pot body (5). The bottom of the outer wall of the seedling pot body (5) is fixedly connected to the seedling pot tail (6). The inner wall of the seedling pot body (5) is connected to guide strips (7) distributed at equal angles. A guide groove (8) is opened on the side of the inner wall of the seedling pot body (5) close to the guide strips (7). A drainage groove (9) is opened on the outer side of the top of the seedling pot tail (6). A base plate (10) distributed at equal angles is connected in the middle of the seedling pot tail (6). The area connected by the base plate (10) is a breathable gap (11). A column (12) is fixedly connected on the outer side of the bottom of the seedling pot tail (6). The column (12) and the inner wall of the seedbed board (2) form an air layer (13).
2. The seedling pot structure according to claim 1, characterized in that: The guide strip (7) is used to form a physical barrier. The guide groove (8) is a longitudinal groove used to guide the roots to grow downward along the groove. The guide strip (7) works in conjunction with the guide groove (8) to prevent the roots from growing horizontally around the inner wall of the seedling pot body (5).
3. The seedling pot structure according to claim 2, characterized in that: The substrate (10) has a petal-shaped structure to prevent roots from passing through the tail (6) of the seedling pot. The ventilation gap (11) is Y-shaped to ensure drainage and ventilation. The substrate (10) can be elastically deformed to close the ventilation gap (11) to prevent roots from squeezing the substrate (10) and passing through the ventilation gap (11).
4. The seedling pot structure according to claim 3, characterized in that: The bottom end of the column (12) is connected to the inner wall of the seedbed board (2) to support the tail of the seedling pot (6), and the air layer (13) is used to inhibit the continued growth of roots that extend out of the ventilation gap (11).
5. The seedling pot structure according to claim 4, characterized in that: The bottom end of the guide groove (8) is connected to the drainage groove (9), and the inner wall of the drainage groove (9) is connected to the ventilation gap (11) to guide excess water in the guide groove (8) to be quickly discharged from the ventilation gap (11).
6. A method for preventing root cross-contamination in seedling trays, comprising the following steps: S1: Check in advance that the overall structure of the seedling tray (1) and seedling pot is intact; Place the seedling tray (1) stably on top of the seedbed board (2), and use the column (12) to support the tail of the seedling pot (6), so that a stable air layer (13) is formed between the tail of the seedling pot (6) and the seedbed board (2). S2: Fill the seedling pot with seedling substrate, and fill it to a height lower than the top edge of the seedling pot head (4) to avoid the substrate overflowing into the pot body and forming a connecting medium; after filling, scrape off the excess substrate on the surface of the pot and at the joint of the pot body to prevent the roots from spreading horizontally with the help of the surface soil, and ensure that the guide groove (8) and drainage groove (9) are not blocked by the substrate. S3: Sow a fixed amount of seeds in each seedling pot, control the sowing density, and avoid the seedlings being too dense, which would cause the roots to squeeze each other and extend outward; after sowing, cover evenly with a thin layer of fine substrate, with a moderate soil covering thickness, without burying the head of the seedling pot (4) connection position, to reduce the conditions for the roots to spread laterally. S4: During the seedling stage, water is replenished by spraying, following the principle of rapid irrigation and drainage. Excess water flows into the drainage trough (9) along the longitudinal guide groove (8) and is finally discharged through the Y-shaped ventilation gap (11) to avoid water accumulation in the pot and root suffocation. During the seedling growth period, the dry-nurturing mode is adopted. Water is replenished after the surface substrate is relatively dry. The guide strip (7) and the longitudinal guide groove (8) form a physical barrier to guide the roots to grow downward along the guide groove (8) and prevent the roots from growing horizontally around the inner wall of the seedling pot body (5). S5: When the seedling roots grow downwards and touch the petal-shaped substrate (10), the physical barrier and elastic deformation characteristics of the substrate (10) prevent the roots from forcibly passing through the air gap (11); a small number of root hairs that extend out of the air gap (11) are directly in the air layer (13) surrounded by the column (12), and are inhibited from continuing to grow downwards by the air-rooting effect, which promotes the germination of lateral roots inside the seedling pot and forms an independent and complete root ball; S6: After the seedlings mature, gradually reduce the water supply and carry out water cut-off hardening to allow the substrate in the pot to dry appropriately and further fix the root ball shape; throughout the seedling raising process, stacking and pressing the seedling tray (1) is prohibited to prevent structural deformation and substrate leakage, which may cause root cross-contamination; during transportation and machine operation, use the positioning hole (3) and the rice transplanting equipment pin to accurately move the seedlings to ensure the integrity of the root ball in the pot. S7: After a single seedling raising operation is completed, clean the residual substrate and old roots in the guide trough (8), drainage trough (9), and ventilation gap (11), check that the base plate (10) and column (12) are in good working order, dry them and store them to ensure that the anti-root cross-contamination performance is stable when reused.