Industrialized seedling raising method for shortening growth period of sedum sarmentosum

Abstract

The invention relates to the technical field of medicinal plant seedling culture, in particular to an industrialized seedling culture method for shortening the growth period of sedum sarmentosum, which adopts a multi-layer seedling culture frame integrated sensor network, a tidal irrigation system, a vermiculite and perlite matrix recycling technology and a digital management platform to reduce the matrix cost and improve the space utilization rate. Cultivation environment parameters and water and fertilizer supply are dynamically regulated and controlled, and three-dimensional, precise and efficient sedum sarmentosum seedling raising is achieved. According to the method, the sedum sarmentosum seedling raising period is remarkably shortened to 1 / 6 of that of a traditional method, the seedling survival rate is increased to 95% or above, common plant diseases and insect pests in traditional seedling raising are reduced, meanwhile, 80% of planting space is saved, and the method is suitable for large-scale production.

Description

Technical Field

[0001] This invention relates to the field of medicinal plant seedling technology, specifically a factory-scale seedling production method for shortening the growth period of Sedum sarmentosum. Background Technology

[0002] Sedum sarmentosum ( Sedum sarmentosum Bunge It is a perennial herbaceous plant belonging to the genus Sedum in the family Crassulaceae. It grows in sunny mountain slopes, rock crevices, ditches and moist places along roadsides below 1600m altitude. It is extremely drought-resistant, likes full sun, but can tolerate some shade. It has a fine and shallow root system, likes fertile soil, and can tolerate poor soil and saline-alkali soil.

[0003] As an important traditional Chinese medicine, Sedum sarmentosum has the effects of clearing toxins from the body, relieving inflammation, improving jaundice (yellowing of the skin and eyes) and yellow urine. It is often used for hepatitis, sore throat, and skin burns and swelling.

[0004] Currently, existing Sedum sarmentosum seedling cultivation techniques mostly use non-renewable peat moss as the seedling substrate, rely on experience for water and fertilizer management, and lack precise control methods. These techniques generally suffer from long seedling cycles, fixed sowing times, difficulty in controlling sowing density, and are constrained by the natural environment, resulting in low space utilization and extensive management. Furthermore, traditional planar seedling cultivation requires a large area, making it difficult to meet the needs of large-scale operations. Therefore, there is an urgent need to develop a Sedum sarmentosum seedling cultivation method that shortens the growth cycle, saves resources, and can be applied in industrial settings. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and propose a factory-scale seedling production method for shortening the growth period of Sedum sarmentosum. This method significantly shortens the seedling production cycle of Sedum sarmentosum, improves the survival rate, and reduces the seedling production cost. Factory-scale seedling production of Sedum sarmentosum has now been realized.

[0006] A factory-scale seedling cultivation method for shortening the growth period of Sedum sarmentosum. This cultivation method integrates a multi-layer seedling rack with a sensor network, a tidal irrigation system, vermiculite and perlite substrate recycling technology, and a digital management platform. The specific steps include: S1. Select the cultivation environment; S2. Erect a cultivation rack, with LED light sources and a tidal irrigation system between layers. Each layer is equipped with seedling trays, temperature and humidity sensors, light sensors, and CO2 concentration sensors. Data from each sensor is uploaded to the integrated environmental control system in real time. The integrated environmental control system includes a temperature and humidity control system, a micro-sprinkler irrigation control system, a ventilation system, a light intensity control system, and a fire prevention system.

[0007] S3. Use soil, vermiculite, and perlite as the seedling substrate, with a mass ratio of 3:2:1. Evenly sow *Sedum sarmentosum* seeds that have been sterilized by gamma rays and undergone germination treatment in the seedling trays, controlling the sowing rate at 10–35 g / m².2 Cover with 2cm of seedling substrate; S4. A special nutrient solution for creeping sedum is supplied at regular intervals through a tidal irrigation system, and the data from various sensors is analyzed using a digital management platform to dynamically adjust the cultivation environment parameters and water and fertilizer supply.

[0008] Furthermore, in step S2, a 15-layer stainless steel seedling rack is used, which increases the seedling capacity per unit area by 15 times. Each layer of the seedling rack is equipped with 9 8W LED plant supplement light strips with a red-to-blue ratio of 4:1.

[0009] Furthermore, in step S3, the soil, vermiculite, and perlite are sterilized at 120°C for 30 minutes, and humic acid is added to adjust the pH to 6.5 before recycling.

[0010] Furthermore, in step S3, the sowing time is as follows: the first crop is in early January each year, the second crop is in early March each year, the third crop is in early May each year, the fourth crop is in early July each year, the fifth crop is in early September each year, and the sixth crop is in early November each year. The cultivation is carried out to achieve 6 crops in one year.

[0011] Furthermore, the cultivation environment parameters include: air temperature 18–25℃, air humidity 40–60%, and light intensity 1000–10000 lux.

[0012] Further, in step S4, the formula for the special nutrient solution for Sedum sarmentosum is as follows: potassium dihydrogen phosphate 50-80 mg / L, magnesium sulfate 150-300 mg / L, calcium nitrate 300-500 mg / L, ferrous sulfate 2-10 mg / L, EDTA 3-10 mg / L, boric acid 0.05-0.2 mg / L, manganese sulfate 0.02-0.2 mg / L, potassium iodide 0.0001-0.002 mg / L, zinc sulfate 0.003-0.006 mg / L, copper sulfate 0.00003-0.0005 mg / L, and ammonium molybdate 0.0002-0.002 mg / L.

[0013] Furthermore, in step S4, the nutrient solution specifically for Sedum sarmentosum is sprayed 2-7 times per month (6L / m²). 2 / Second-rate).

[0014] Furthermore, in step S4, the creeping sedum seedlings are watered 2 to 4 times a week, each time for 0.5 to 300 hours. During the growing season, the indoor temperature is controlled at 15 to 30°C, and ventilation is maintained.

[0015] Furthermore, the digital management platform optimizes the growth model based on machine learning algorithms to achieve remote monitoring and automatic alarm functions.

[0016] Compared with existing technologies, this invention has the following characteristics and beneficial effects: the seedling cycle is shortened to 2 months, reducing the time by 90% compared with traditional methods; substrate costs are reduced by 60%, and space utilization is increased by 80%; digital management reduces manual intervention by 90%, and the seedling survival rate is ≥95%. This greatly improves the sustainability and economic benefits of Sedum sarmentosum cultivation and provides important technical support for the large-scale and standardized cultivation of Sedum sarmentosum. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the seedling rack in an embodiment of the present invention. Detailed Implementation

[0018] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0019] Example 1 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Selection of cultivation environment: Taking Yuzhong County, Lanzhou City, Gansu Province as an example. Yuzhong County is located at 104° east longitude and 35° north latitude, with an average altitude of 1800 meters, a temperature of -13 to 26°, an average annual precipitation of 400 mm, and an air humidity of 37 to 72%.

[0020] 2) Facility requirements: 2.1) 146 seedling racks were custom-purchased according to the factory size, specifically 25 main racks + 121 auxiliary racks, arranged in multiple rows. In this embodiment, the factory area is 5000 square meters, and the seedling rack specifications are 3.9 meters × 1 meter × 7.9 meters. Figure 1 As shown.

[0021] 2.2) The factory is equipped with an integrated environmental control system, including a 24-hour controllable temperature and humidity system (to control temperature and humidity), a micro-sprinkler irrigation control system (to control watering and spraying), a ventilation system (for ventilation operation), a light intensity control system, and a fire prevention system.

[0022] 2.3) Install a tidal irrigation system and nine 8W LED plant grow lights between the layers of each seedling rack, with a red-to-blue ratio of 4:1. Set up seedling trays on each layer of each seedling rack. The specifications of the seedling trays are: 1.2 meters long, 0.54 meters wide, with 12 rows of reinforcing ribs in the longitudinal direction, and a depth of 0.08 meters.

[0023] 2.4) Temperature and humidity sensors, light sensors, and CO2 concentration sensors are installed between the layers of each seedling rack. The data from each sensor is uploaded to the integrated environmental control system in real time, and a digital management platform is built to analyze the sensor data based on machine learning algorithms to optimize the growth model of Sedum sarmentosum and realize remote monitoring and automatic alarm functions.

[0024] 3) Sowing: Use plump Sedum sarmentosum seeds, disinfect them with 0.5 kGy γ-rays for 30 minutes and then treat them for rapid germination. Sow them evenly in seedling trays in early January of the same year, with a sowing rate of 10 g / m². 2 Then cover the seed surface with a 2cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0025] 4) Training and management methods: After sowing, use a tidal irrigation system for sprinkler irrigation. Once the cotyledons have grown two leaves, begin spraying with nutrient solution. Continuously supply the nutrient solution specifically for Sedum sarmentosum using the tidal irrigation system via sprinkler irrigation at regular intervals, 2-7 times per month, at a rate of 6 L / m². 2 The formula for the special nutrient solution for Sedum sarmentosum is as follows: potassium dihydrogen phosphate 65 mg / L, magnesium sulfate 225 mg / L, calcium nitrate 400 mg / L, ferrous sulfate 6 mg / L, EDTA 6.5 mg / L, boric acid 0.125 mg / L, manganese sulfate 0.11 mg / L, potassium iodide 0.00105 mg / L, zinc sulfate 0.0045 mg / L, copper sulfate 0.00265 mg / L, and ammonium molybdate 0.0011 mg / L.

[0026] Meanwhile, the digital management platform is used to analyze the data from various sensors and dynamically adjust the cultivation environment parameters and water and fertilizer supply. Specifically, water is replenished according to the humidity of the seedling trays, 2 to 4 times a week, for 0.5 to 3 hours each time. The light intensity is 1,000 to 10,000 lux, the air humidity is 40 to 60%, and the indoor temperature is controlled at 15 to 30℃ during the growing season, while maintaining ventilation. 5) Transplanting: The seedlings are dug up and transplanted to the field at the end of February of the same year. At this time, the seedling growth period is about 60 days and the survival rate of transplanting is 87%.

[0027] Example 2 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Cultivation environment selection and facility requirements: Same as Example 1.

[0028] 2) Sowing: Use plump Sedum sarmentosum seeds, disinfect them with 2 kGy of gamma rays for 10 minutes and then treat them for rapid germination. Sow them evenly in seedling trays in early March at a rate of 35 g / m².2 Then cover the seed surface with a 2cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0029] 3) Cultivation and management methods: The formula of the special nutrient solution for Sedum sarmentosum is as follows: potassium dihydrogen phosphate 50 mg / L, magnesium sulfate 150 mg / L, calcium nitrate 300 mg / L, ferrous sulfate 2 mg / L, EDTA 3 mg / L, boric acid 0.05 mg / L, manganese sulfate 0.02 mg / L, potassium iodide 0.0001 mg / L, zinc sulfate 0.003 mg / L, copper sulfate 0.00003 mg / L, ammonium molybdate 0.0002 mg / L, and the rest of the design is the same as in Example 1.

[0030] 4) Transplanting: The seedlings are dug up and transplanted to the field at the end of April of the same year. At this time, the seedling growth period is about 50 days and the survival rate of transplanting is 89%.

[0031] Example 3 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Cultivation environment selection and facility requirements: Same as Example 1.

[0032] 2) Sowing: Use plump *Sedum sarmentosum* seeds, sterilize them with 1.25 kGy of γ-rays for 20 minutes and treat them for rapid germination, then sow them in seedling trays in early May of the same year at a sowing rate of 22.5 g / m². 2 Sow evenly, then cover the seeds with a 2cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0033] 3) Cultivation and management methods: The formula of the special nutrient solution for Sedum sarmentosum is as follows: potassium dihydrogen phosphate 80mg / L, magnesium sulfate 300mg / L, calcium nitrate 500mg / L, ferrous sulfate 10mg / L, EDTA 10mg / L, boric acid 0.2mg / L, manganese sulfate 0.2mg / L, potassium iodide 0.002mg / L, zinc sulfate 0.006mg / L, copper sulfate 0.0005mg / L, ammonium molybdate 0.002mg / L, and the rest of the design is the same as in Example 1.

[0034] 4) Transplanting: The seedlings are dug up and transplanted to the field at the end of June of the same year. At this time, the seedling growth period is about 50 days and the survival rate of transplanting is 89%.

[0035] Example 4 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Cultivation environment selection and facility requirements: Same as Example 1.

[0036] 2) Sowing: Use plump Sedum sarmentosum seeds, disinfect them with 1.5 kGy γ-rays for 15 min and then treat them for rapid germination. Sow them in seedling trays in early July of the same year at a sowing rate of 35 g / m². 2 Sow evenly, then cover the seeds with a 1-3cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0037] 3) Cultivation and management methods: Same as in Example 1.

[0038] 4) Transplanting: The seedlings are dug up and transplanted to the field at the end of August of the same year. At this time, the seedling growth period is about 50 days, which meets the requirement of a transplant survival rate of 85%.

[0039] Example 5 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Cultivation environment selection and facility requirements: Same as Example 1.

[0040] 2) Sowing: Use plump Sedum sarmentosum seeds, disinfect them with 2 kGy of γ-rays for 10 minutes and then treat them for rapid germination. Sow them in seedling trays in early September of the same year at a sowing rate of 25 g / m². 2 Sow evenly, then cover the seeds with a 2cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0041] 3) Cultivation and management methods: Same as in Example 1.

[0042] 4) Transplanting: The seedlings are dug up and transplanted to the field at the end of October of the same year. At this time, the seedling growth period is about 50 days and the survival rate of transplanting is 86%.

[0043] Example 6 This embodiment provides a method for factory-scale seedling production of Sedum sarmentosum that shortens its growth period, including the following steps: 1) Cultivation environment selection and facility requirements: Same as Example 1.

[0044] 2) Sowing: Use plump Sedum sarmentosum seeds, sterilize them with 0.5 kGy γ-rays for 30 min and then treat them for rapid germination. Sow them in seedling trays in early November of the same year, with a seed quantity of 22.5 g / m². 2 Sow evenly, then cover the seeds with a 1-3cm thick substrate, which is 6-12 mesh vermiculite: 1-3mm perlite: soil = 2:1:3.

[0045] 3) Cultivation and management methods: Same as in Example 1.

[0046] 4) Transplanting: At the end of December, the seedlings are dug up and transplanted to the field. At this time, the seedling growth period is about 50 days, and the survival rate of transplanting is 89%.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for factory-scale seedling production that shortens the growth period of Sedum sarmentosum, characterized in that, Includes the following steps: S1. Select the cultivation environment; S2. Erect a cultivation rack, with LED light sources and a tidal irrigation system between layers. Each layer is equipped with seedling trays, temperature and humidity sensors, light sensors and CO2 concentration sensors. Data from each sensor is uploaded to the environmental control integrated control system in real time. S3. Use soil, vermiculite, and perlite as the seedling substrate, with a mass ratio of 3:2:

1. Sow the seeds of Sedum sarmentosum, which have been disinfected by gamma rays and have undergone germination treatment, evenly in the seedling tray and cover them with 2cm of seedling substrate. S4. A special nutrient solution for creeping sedum is supplied at regular intervals through a tidal irrigation system, and the data from various sensors is analyzed using a digital management platform to dynamically adjust the cultivation environment parameters and water and fertilizer supply.

2. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S2, a 15-layer stainless steel seedling rack is used, and each layer of the seedling rack is equipped with 9 8W LED plant grow light strips with a red-to-blue ratio of 4:

1.

3. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, The environmental control system integrates a central control unit for temperature and humidity control, a micro-sprinkler irrigation control system, a ventilation system, a light intensity control system, and a fire prevention system.

4. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S3, the soil, vermiculite, and perlite are sterilized at 120°C for 30 minutes, and humic acid is added to adjust the pH to 6.5 before recycling.

5. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S3, the seeding rate is controlled at 10–35 g / m². 2 The sowing time is as follows: the first crop is in early January each year, the second crop is in early March each year, the third crop is in early May each year, the fourth crop is in early July each year, the fifth crop is in early September each year, and the sixth crop is in early November each year. Cultivation is carried out to achieve 6 crops in one year.

6. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, The cultivation environment parameters include: air temperature 18-25℃, air humidity 40-60%, and light intensity 1000-10000 lux.

7. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S4, the formula for the special nutrient solution for Sedum sarmentosum is as follows: potassium dihydrogen phosphate 50-80 mg / L, magnesium sulfate 150-300 mg / L, calcium nitrate 300-500 mg / L, ferrous sulfate 2-10 mg / L, EDTA 3-10 mg / L, boric acid 0.05-0.2 mg / L, manganese sulfate 0.02-0.2 mg / L, potassium iodide 0.0001-0.002 mg / L, zinc sulfate 0.003-0.006 mg / L, copper sulfate 0.00003-0.0005 mg / L, and ammonium molybdate 0.0002-0.002 mg / L.

8. The method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S4, the nutrient solution specifically for Sedum sarmentosum is sprayed 2-7 times per month at a rate of 6 L / m². 2 / Second-rate.

9. A method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, In step S4, the creeping sedum seedlings are watered 2 to 4 times a week for 0.5 to 3 hours each time. During the growing season, the indoor temperature is controlled at 15 to 30°C and ventilation is maintained.

10. A method for factory-scale seedling production of *Sedum sarmentosum* to shorten its growth period as described in claim 1, characterized in that, The digital management platform optimizes the growth model based on machine learning algorithms to achieve remote monitoring and automatic alarm functions.

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