A type of seedling transplanting tray for chili peppers in saline-alkali soil

Abstract

This invention discloses a seedling transplanting tray for chili peppers in saline-alkali land, comprising a modular planting unit, a salt isolation system, a rhizosphere conditioning module, and a support base. The modular planting unit consists of an outer support frame and a biodegradable inner liner. The inner liner is frustoconical and fixed to the positioning square holes of the outer support frame by rectangular grooves and positioning pins. The salt isolation system employs a dual structure of a bottom composite membrane layer and a sidewall microporous coating, respectively blocking rising salt and adsorbing harmful ions. The rhizosphere conditioning module has a slow-release interlayer filled with pH buffer and a corrugated root guide groove on the inner wall of the inner liner, guiding roots downwards and stabilizing the rhizosphere environment. The support base consists of detachable and adjustable support legs for use in different terrains. This invention effectively inhibits salt migration, improves the rhizosphere pH environment, and promotes healthy growth of chili pepper seedlings, making it suitable for transplanting in saline-alkali land.

Description

Technical Field

[0001] This utility model relates to a seedling tray for transplanting chili pepper seedlings in saline-alkali land. Background Technology

[0002] Saline-alkali soils, with their high salt content and alkaline pH, often cause problems such as root burn, yellowing leaves, and wilting in transplanted chili seedlings. Traditional seedling trays are mostly one-piece molded plastic structures, lacking salt isolation capabilities and having limited rhizosphere regulation mechanisms, failing to effectively suppress salt rise caused by capillary action. Furthermore, the materials used in ordinary seedling trays are non-biodegradable, easily causing environmental pollution after use. Current technologies still have shortcomings in salt barrier, rhizosphere buffering, and structural adaptability, urgently requiring a transplanting tray that combines salt protection, rhizosphere regulation, and environmental friendliness to improve the survival rate of transplanted chili peppers in saline-alkali soils. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a seedling transplanting tray for chili pepper seedlings in saline-alkali land.

[0004] A seedling transplanting tray for chili peppers in saline-alkali land includes a modular planting unit, a salt isolation system, a rhizosphere conditioning module, and a support base. The modular planting unit comprises an outer support frame and a biodegradable inner liner. The outer support frame has several rectangularly arranged positioning holes. The biodegradable inner liner is disposed within these positioning holes and is frustoconical in shape. The upper surface of the biodegradable inner liner is a rectangular support surface. A recessed rectangular groove surrounds the positioning holes, and the support surface of the biodegradable inner liner is nested within the rectangular groove. Several positioning pins with snap-fit ​​structures are provided on the rectangular groove and connected to the positioning holes on the support surface. The salt isolation... The system consists of a bottom composite membrane layer and a sidewall microporous coating. The bottom composite membrane layer is located at the bottom of the biodegradable inner liner and includes a double-layer structure of a natural fiber water-blocking layer and an activated carbon adsorption layer. The sidewall microporous coating is located on the outer sidewall of the biodegradable inner liner and includes a double-layer structure of a sodium alginate layer and an attapulgite layer. The rhizosphere regulation module includes a slow-release interlayer and a root guiding groove. The slow-release interlayer is located in the sidewall interlayer of the biodegradable inner liner and is filled with a pH buffer. The root guiding groove is a corrugated groove located on the inner wall of the inner liner. The support base includes detachable support legs located at the four corners of the outer support frame, and the height of the detachable support legs is adjustable.

[0005] As a further improvement, the outer support frame is made of recyclable HDPE material and has an array of vents. HDPE is durable and recyclable, reducing long-term usage costs. The array of vents improves air exchange and reduces substrate water accumulation and oxygen deficiency.

[0006] As a further improvement, the biodegradable inner liner is made of starch-based material. Starch-based materials are environmentally friendly and biodegradable, avoiding plastic residue pollution, and at the same time, they can provide organic matter to the soil during the degradation process.

[0007] As a further improvement, the pH buffer is humic acid-calcium dihydrogen phosphate granules. Humic acid improves soil aggregate structure and increases nutrient adsorption capacity, while calcium dihydrogen phosphate not only supplements phosphorus but also regulates pH, thus promoting root growth in a dual way.

[0008] As a further improvement, the volume of the slow-release interlayer accounts for 15% to 20% of the volume of the biodegradable inner liner, ensuring that the buffer has sufficient reserves to achieve long-term release without occupying too much seedling space, thus balancing the regulatory capacity and the seedling capacity.

[0009] As a further improvement, the root guide grooves are 2-3 mm deep and 10 mm apart. This size can effectively guide the roots to extend longitudinally and reduce root entanglement, without affecting the compactness and drainage of the substrate.

[0010] Beneficial effects:

[0011] 1. Dual salt isolation: The bottom composite membrane layer and the side wall microporous coating work together to effectively block the upward movement of salt and adsorb harmful ions.

[0012] 2. Rhizosphere pH regulation: The slow-release interlayer continuously releases buffers to improve rhizosphere pH and reduce alkali damage.

[0013] 3. Biodegradable inner liner: The inner liner degrades naturally after the planting period, avoiding damage to the root system when removing seedlings and reducing plastic waste.

[0014] 4. Adjustable support legs: adaptable to different terrains and irrigation methods, maintaining ventilation and drainage of the seed trays.

[0015] 5. Root guidance design: Corrugated grooves promote downward root growth and prevent root entanglement.

[0016] 6. Split structure: The external support frame can be reused, reducing usage costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a seedling tray for transplanting chili pepper seedlings in saline-alkali land;

[0018] Figure 2 This is a top view of the biodegradable inner liner;

[0019] Figure 3 This is a cross-sectional view of the biodegradable inner liner;

[0020] 1. External support frame 11. Positioning pin 2. Biodegradable inner liner 21. Support surface 22. Positioning hole 3. Natural fiber water-blocking layer 4. Activated carbon adsorption layer 5. Sodium alginate layer 6. Attapulgite soil layer 7. Slow-release interlayer 8. Root guide groove 9. Detachable support legs. Detailed Implementation

[0021] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0022] like Figure 1 As shown, a seedling transplanting tray for chili peppers in saline-alkali land includes an outer support frame 1, a positioning pin 11, a biodegradable inner liner 2, a support surface 21, a positioning hole 22, a natural fiber water-blocking layer 3, an activated carbon adsorption layer 4, a sodium alginate layer 5, an attapulgite soil layer 6, a slow-release interlayer 7, a root guide groove 8, and detachable legs 9.

[0023] This utility model discloses a seedling transplanting tray for chili peppers in saline-alkali land, comprising an outer support frame 1, a biodegradable inner liner 2, a salt isolation system, a rhizosphere adjustment module, and a support base.

[0024] External support frame 1: Employs a rectangular array of positioning holes, with a recessed rectangular groove around each hole and a snap-fit ​​positioning pin 11. HDPE can be used as the material, and an array of ventilation holes is arranged on the frame to improve airflow.

[0025] Biodegradable inner liner 2: It is frustoconical in shape, with a rectangular support surface 21 at the top, which is connected and fixed to the positioning pin 11 through the positioning hole 22. The inner liner is made of starch-based material and can degrade naturally in soil.

[0026] Salt isolation system: A composite membrane layer is set at the bottom of the inner tank, including a natural fiber water-blocking layer 3 and an activated carbon adsorption layer 4, to prevent salt brought by capillary water from entering the soil of the seedling tray; the outer wall is sprayed with a double-layer microporous coating of sodium alginate layer 5 and attapulgite layer 6 to delay the lateral salt penetration.

[0027] Rhizosphere regulation module: The inner sidewall interlayer forms a slow-release interlayer 7, filled with humic acid-calcium dihydrogen phosphate particles, which can be stably released to regulate the pH of the rhizosphere; the inner wall has corrugated grooves with a depth of 2-3 mm and a spacing of 10 mm as root guide grooves 8 to promote the longitudinal growth of roots.

[0028] Support base: Detachable support legs 9 are installed at the four corners of the outer frame. The length of the legs is adjustable to adapt to the height requirements of different plots and to maintain bottom ventilation.

[0029] When using it, place the substrate and seedlings into the biodegradable inner liner 2. After the seedlings are grown, transplant them together with the inner liner to saline-alkali land. The inner liner gradually degrades during the growth process, allowing the roots to freely penetrate into the soil. At the same time, the salt isolation system continuously protects the roots, significantly improving the transplant survival rate and the later growth rate.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transplant plug for pepper seedlings in saline-alkali soil, characterized in that, The system includes a modular planting unit, a salt isolation system, a rhizosphere conditioning module, and a support base. The modular planting unit comprises an outer support frame and a biodegradable inner liner. The outer support frame has several rectangularly arranged positioning holes, within which the biodegradable inner liner is housed. The biodegradable inner liner is frustoconical in shape, with a rectangular support surface on its upper surface. A recessed rectangular groove surrounds the positioning holes, and the support surface of the biodegradable inner liner is nested within this groove. Several positioning pins with snap-fit ​​structures are located in the rectangular groove and connected to the positioning holes on the support surface. The salt isolation system is a bottom-composite system. The biodegradable inner liner includes a membrane layer and a sidewall microporous coating. A bottom composite membrane layer is located at the bottom of the biodegradable inner liner, comprising a double-layer structure of a natural fiber water-blocking layer and an activated carbon adsorption layer. A sidewall microporous coating is located on the outer sidewall of the biodegradable inner liner, comprising a double-layer structure of a sodium alginate layer and an attapulgite layer. The rhizosphere regulation module includes a slow-release interlayer and a root guiding groove. The slow-release interlayer is located in the sidewall interlayer of the biodegradable inner liner and is filled with a pH buffer. The root guiding groove is a corrugated groove located on the inner wall of the inner liner. The support base includes detachable support legs located at the four corners of the outer support frame, and the height of the detachable support legs is adjustable.

2. The pepper seedling transplant plug for saline-alkali soil according to claim 1, characterized in that, The external support frame is made of recyclable HDPE material and has an array of vents.

3. The pepper seedling transplant plug for saline-alkali soil according to claim 1, characterized in that, The biodegradable inner liner is made of starch-based material.

4. The pepper seedling transplant plug for saline-alkali soil according to claim 1, characterized in that, The pH buffer is humic acid-calcium dihydrogen phosphate granules.

5. A seedling transplanting tray for chili pepper seedlings in saline-alkali land according to claim 1, characterized in that, The volume of the slow-release interlayer accounts for 15% to 20% of the volume of the biodegradable inner liner.

6. The pepper seedling transplant plug for saline-alkali soil according to claim 1, wherein, The root guide grooves are 2-3 mm deep and spaced 10 mm apart.

Images