Method for cultivating panax ginseng seedlings
The method of cultivating ginseng seedlings in a ventilated sealable container with controlled light and dark periods and moisture levels addresses inefficiencies and disease susceptibility, achieving high-quality seedlings with reduced watering and space requirements.
Patent Information
- Application Number
- JP2024054023
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-10-09
AI Technical Summary
Existing methods for cultivating ginseng seedlings are inefficient, unstable, and labor-intensive, with high susceptibility to diseases and frequent irrigation needs.
Cultivating ginseng seedlings in a sealable container with ventilation means, regulating light and dark periods, and ventilating during the light period for at least 4 hours, with controlled watering to maintain moisture content 5% higher than the standard, and using mulch materials to reduce watering frequency.
This method stabilizes ginseng seedling cultivation, reduces watering frequency, and simplifies space usage by stacking containers, while producing high-quality seedlings that meet ISO standards and eliminating the need for artificial carbon dioxide supply.
Smart Images

Figure 2025152228000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a method for growing ginseng seedlings indoors. [Background technology]
[0002] Panax ginseng (C.A. Meyer) is mainly grown in China and the Korean Peninsula and occupies an important position as a medicinal plant used in traditional Chinese medicine. With the rise in health consciousness, Panax ginseng is not only used as a traditional Chinese medicine ingredient, but is also being used in health foods for the purpose of strengthening the body, and demand for it is increasing.
[0003] Panax ginseng is cultivated in Japan in Nagano, Fukushima, Shimane and other prefectures, but production volumes are small and a significant amount must be imported from overseas to meet domestic demand.
[0004] The reason why ginseng production in Japan is low is that it faces many challenges, including its susceptibility to disease, the risk of damage from continuous cropping, the length of time it takes to harvest, and the labor-intensive nature of its cultivation.
[0005] In particular, ginseng is susceptible to diseases such as damping-off, root rot, and leaf spot, and it is necessary to prevent infection through the soil and the occurrence of diseases due to rain. Therefore, a method for stably cultivating ginseng has been desired.
[0006] The present applicant has proposed a method for cultivating ginseng seedlings indoors, which comprises preparing a plurality of nonwoven fabric pots, one of which is relatively long and the other relatively short when viewed from above, each having an opening at the top, filling each with cultivation soil, planting ginseng seedlings in the longitudinal direction of the pot with their axes tilted, and placing the seedlings on a multi-tiered shelf with the germinating parts facing outwards (Patent Document 1).
[0007] Panax ginseng is usually cultivated for 1 to 2 years after sowing to grow seedlings, and then the sown ginseng seedlings are transplanted into a new medium for continued cultivation. Patent Document 1 relates to a method for cultivating seedlings after transplantation, and is not a technology for cultivating seedlings from sown ginseng seeds before transplantation. There has been a demand for a technology for cultivating ginseng seedlings by sowing them, which can be done efficiently and stably while reducing the number of times irrigation is required. [Prior art documents] [Patent documents]
[0008] [Patent Document 1] Patent No. 6465110 Summary of the Invention [Problem to be solved by the invention]
[0009] Therefore, an object of the present invention is to provide a method for cultivating ginseng seedlings from seeds more stably and efficiently than conventional methods. [Means for solving the problem]
[0010] As a result of intensive research to solve the above problems, the present inventors have found that the above problems can be solved by cultivating ginseng seedlings using a sealable container equipped with a ventilation means and ventilating the container for a specific period of time, thereby completing the present invention.
[0011] That is, the present invention is the following invention. (1) A method for cultivating ginseng seedlings, comprising placing a seedling raising medium in a sealable container equipped with a ventilation means, sowing ginseng seeds in the seedling raising medium, and irrigating the seedlings, Set up a light period and a dark period, Ventilate the room at least during the daytime. 1. A method for cultivating ginseng seedlings, comprising: (2) The method for cultivating ginseng seedlings according to (1), wherein the total ventilation time is 4 hours or more. (3) The method for cultivating ginseng seedlings according to (1) or (2), wherein when the moisture content of the seedling raising medium falls below a standard value for irrigation, the water content is irrigated to be at least 5% by mass higher than the standard value for irrigation. (4) The method for cultivating ginseng seedlings according to claim 1 in any one of (1) to (3), wherein the seedling raising medium is covered with a mulch material. (5) The method for cultivating ginseng seedlings according to any one of (1) to (4), wherein the containers are stacked for cultivation. [Effects of the Invention]
[0012] The method for cultivating ginseng seedlings of the present invention allows for good ventilation in a sealable container, thereby enabling the cultivation of high-quality ginseng seedlings while reducing the frequency of watering. Furthermore, since the seedlings can be cultivated without artificially applying carbon dioxide, costs can also be reduced. The method for cultivating ginseng seedlings of the present invention also simplifies the cultivation space because the containers can be stacked. [Brief explanation of the drawings]
[0013] [Figure 1] FIG. 1 is a schematic diagram of the cultivation container used in Examples 1 to 3. [Figure 2] FIG. 1 is a diagram showing the state of seedlings in a buckle container 201 days after sowing in Example 1. [Figure 3] FIG. 2 is a diagram showing the appearance of harvested seedlings in Example 1. [Figure 4] FIG. 10 is a diagram showing the state of seedlings in a buckle container 167 days after sowing in Example 2. [Figure 5] FIG. 1 is a diagram showing the appearance of harvested seedlings in Example 2. [Figure 6] FIG. 1 is a schematic diagram of the multi-stage cultivation used in Examples 4 and 5. DETAILED DESCRIPTION OF THE INVENTION
[0014] The method for cultivating ginseng seedlings of the present invention (hereinafter simply referred to as the "cultivation method of the present invention") comprises placing a seedling raising medium in a sealable container equipped with ventilation means, sowing ginseng seeds in the seedling raising medium, and watering the seedlings, and is characterized by providing a light period and a dark period, with ventilation being carried out at least during the light period.
[0015] Examples of the sealable container used above include a buckle container with a buckle on the lid, a box container without a buckle covered with plastic wrap, a single box container, and stacked containers in which the bottom of the upper container serves as the lid of the lower container. The capacity of this container is not particularly limited, but is, for example, 10 to 80 L, preferably 20 to 60 L. The depth of this container is also not particularly limited as long as it can ensure the root length and above-ground part height of the cultivated ginseng, but is, for example, 20 to 100 cm, preferably 30 to 50 cm. The material of this container is not particularly limited when the light source is installed inside the container, but is preferably a light-transmitting material when the light source is located outside the container. Examples of such materials include polypropylene, polycarbonate, polyethylene, polyamide, and acrylic.
[0016] The sealable container is provided with a ventilation means. The ventilation means is not limited, and examples thereof include a ventilator and a fan. The ventilation capacity of the ventilation means may be appropriately selected according to the capacity of the container. For example, the ventilation capacity of the ventilation means is set to 0.003 to 0.1 m 2 excluding the seedling growing medium in the sealable container. 3 1 to 100m 3 / h, preferably 10 to 80 m 3 / h. This ventilation capacity is a value calculated from the space and ventilation capacity described above. If the space size is different, the ventilation capacity can be selected by calculating the appropriate ventilation capacity using the above as a reference. The ventilation means can be installed on the side or top of the container at a height that does not cover the seedling medium in the container, but considering that containers will be stacked, the side of the container is preferable. The number of ventilation means is not particularly limited, but one or more is preferable, and one is more preferable.
[0017] The ventilation means may include drilling holes in the sealable container to assist ventilation. The size of the holes is not particularly limited, and may be, for example, about 0.5 to 1.5 cm in diameter. The number of holes may be one or more, but one is preferred. The holes may be located on the side or top of the container at a height that does not cover the seedling medium, and are preferably located on the side of the container when containers are stacked.
[0018] Ventilation using the ventilation means includes ventilation at least during the light period, and preferably only during the light period (it does not have to be during the dark period). The total ventilation time is 4 hours or more and 12 hours or less per day, preferably 6 hours or more and 12 hours or less. If the total ventilation time is less than 4 hours, it will have a negative impact on the growth of the above-ground parts and root growth will be poor. Furthermore, if ventilation is performed for 12 hours or more, the frequency of irrigation will increase, which may reduce the labor-saving effect.
[0019] A preferred ventilation mode is to have a 12-hour light and dark period, with the total ventilation time being 6 to 12 hours continuously during the light period, or intermittently every hour. Ventilation is preferably performed during the light period, but the total ventilation time may include the dark period. In this case, it is advisable to set the ventilation time during the light period at least twice as long as the dark period.
[0020] The timing of starting the ventilation and light and dark periods is not particularly limited, but may be started immediately after sowing or 1 to 5 days after sowing.
[0021] The seedling raising medium placed in the container is not particularly limited as long as it is suitable for cultivating ginseng. For example, a mixture of a sterile, nutrient-free, and water-retentive soil base material and a base fertilizer is preferred because it is easy and inexpensive to obtain. Examples of such soil base materials include, but are not limited to, clayey volcanic ash soil, weathered volcanic ejecta, and peat. Akadama soil, Kanuma soil, peat, and the like, which are inexpensive and available in large quantities, are preferred. Commercially available examples of such soil base materials include Cucurbitaceae soil, Solanaceae soil, and Takicel soil TM-1. One or more of these soil base materials may be mixed. Furthermore, commonly used fertilizers may be used in these seedling raising media.
[0022] It is preferable to cover the seedling raising medium with a mulching material. This can further reduce the frequency of watering without affecting the growth of ginseng seedlings. The mulching material is not particularly limited, but examples include rice husks added to the seedling raising medium and black and white mulch laid on the surface of the seedling raising medium. These mulching materials can be applied to the seedling raising medium in amounts normally used.
[0023] Watering in the containers may be carried out to a degree that does not cause ginseng seeds or seedlings to rot. For example, when the moisture content of the seedling raising medium falls below a standard value for watering, watering is preferably carried out so that the moisture content is at least 5% by mass (hereinafter simply referred to as "%") higher than the standard value for watering. Here, the standard value for watering is, for example, 10% or less, preferably 7 to 9%, and more preferably 8 to 9%. When the moisture content of the seedling raising medium falls below this standard value for watering, watering is carried out so that the moisture content of the seedling raising medium is at least 5% higher, preferably 20 to 25%, more preferably 21 to 24%, and particularly preferably 22 to 23%. Watering may be carried out automatically or manually. Watering in this manner reduces the need for watering to about 2 to 5 times during the cultivation period of ginseng seedlings, thereby reducing the effort required for watering.
[0024] In the cultivation using the above-mentioned containers, the light and dark periods are regulated by using light sources such as LEDs, fluorescent lamps, and incandescent lamps. The light and dark periods (per 24 hours) are set at 10 to 18 hours and 14 to 6 hours, preferably 12 to 16 hours and 12 to 8 hours, and more preferably 14 to 16 hours and 10 to 8 hours. The amount of light from the light source is not particularly limited, but for example, when the photon flux density (PPFD) is measured at the surface of the seedling medium, it is 50 to 650 μmol m -2 ·s -1 It is preferable to set the concentration to 75 to 230 μmol m -2 ·s -1 The light source may be provided inside the container or outside the container.
[0025] The ginseng seedlings harvested by the cultivation method of the present invention are not particularly limited as long as they are seedlings grown from ginseng seeds sown. For example, it is preferable that the seeds are grown to a height of about 10 to 20 cm in about 120 to 200 days after sowing. The seeding amount is not particularly limited, but generally, it is about 10 to 20 cm per 1 m of seedling medium. 2 The number of seeds per plant is 100 to 3500, preferably 220 to 2800. In the cultivation method of the present invention, ginseng seedlings are cultivated for 100 to 250 days, preferably 160 to 210 days. After this cultivation, the ginseng seedlings are preferably transplanted, but can also be stored in a refrigerator.
[0026] The cultivation method of the present invention is preferably carried out indoors, and it is more preferable to control the indoor environment, such as temperature, using an air conditioner or the like. A preferred temperature is about 18 to 22°C. Furthermore, in plant factories where cultivation is usually carried out in an open space, it is necessary to artificially supply carbon dioxide necessary for cultivation. However, in the cultivation method of the present invention, by cultivating ginseng seedlings indoors using the above-mentioned sealable container, most of the carbon dioxide produced by microorganisms in the soil remains within the container, eliminating the need to artificially supply carbon dioxide.
[0027] The cultivation method of the present invention allows for the cultivation of high-quality ginseng seedlings. Here, high-quality ginseng seedlings are those that have a weight of 0.5g or more per plant and meet the ISO standard. Furthermore, ventilation and other conditions can reduce the frequency of watering.
[0028] The cultivation method of the present invention allows for multi-tiered cultivation because the cultivation containers can be stacked. Cultivation in multiple tiers simplifies the cultivation space. When cultivating in multiple tiers by stacking cultivation containers, it is preferable to install the light source outside the container for ease of management. Furthermore, when the light source is installed outside the container, a reflector such as a light-reflecting sheet may be placed inside the container. [Example]
[0029] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples in any way.
[0030] Example 1 Ginseng seedling cultivation test: (1) Preparation of cultivation containers A ventilation fan (manufactured by PANO-MOUNTS, ventilation capacity 82 m) was attached to the short side wall of a commercially available 43.4 L capacity buckle container manufactured by Iris Ohyama Co., Ltd. 3 A cultivation container was prepared by attaching a fan (1 / h) to the container and drilling a hole (1 cm diameter) in the center of the lid to assist ventilation. An LED (manufactured by Tomy Seiko Co., Ltd.) was installed as a light source on the outside of the lid of the buckle container. Controllers were attached to the ventilation fan and LED. A schematic diagram of the cultivation container is shown in Figure 1 (the LED and controller are not shown). The space in the container, excluding the seedling medium, was approximately 0.0104 m². 3 It was. (2) Cultivation using containers The buckle container prepared in (1) was placed indoors, where the temperature was maintained at 20°C with an air conditioner. 6 L of Akadama soil (large grain) was poured into the container as a seedling culture medium, followed by 24 L of a 1:1 mixture of Cucurbitaceae soil and Solanaceae soil. 50 seeds of Panax ginseng (which had been broken from dormancy) were then sown (1 m of seedling culture medium). 2The photon flux density (PPFD) was measured at the surface of the seedling medium approximately 1 m away from the light source using a spectrophotometer (C-7000, Sekonic Corporation). -2 ·s -1 A 12-hour light period and a 12-hour dark period were set. When measuring photon flux density, the container lid was removed, and the light-receiving element was oriented toward the LED. Watering was performed by adding 4.5 L of water initially, followed by an adjustment to bring the moisture content of the culture medium to 22-23% once it had dropped to 9% (standard watering value). The moisture content of the seedling medium was measured based on the difference in weight between the container containing the unwatered seedling medium and the weight of the container during cultivation. Watering was performed with the lid of the buckle container open. During cultivation, ventilation was performed under the conditions shown in Table 1 below. Panax ginseng seedlings were harvested 201 days after sowing. [Table 1]
[0031] (3) Results <Growth> The state of the seedlings in the buckle container 201 days after sowing is shown in Figure 2. The appearance of the harvested seedlings is shown in Figure 3. Furthermore, the number of seedlings that passed the test with a weight of 0.5 or more, the pass rate, and the number of excellent seedlings that were 1g or more are shown in Table 2. [Table 2]
[0032] These results showed that seedling growth was poor when the ventilation fan was operated only during the dark period. In the other two plants, L12h_C and L6D6h_C, sufficient growth occurred, and it was found that almost all of the roots could be used as seedlings. The seedling yield was also higher in L12h_C, which was ventilated only during the light period, and L6D6h_C, which was ventilated during both the light and dark periods. Therefore, it was found that by ventilating at least during the light period, ginseng seedlings exceeded the seedling weight standard, and the number of plants and seedling yield were also high.
[0033] <Irrigation> The results of measuring the number of irrigation times and the intervals between irrigations in the above cultivation are shown in Table 3. No differences were observed in the number of irrigation times or the intervals between irrigations. The number of irrigations was five times in all cases except for the first time, and there was no change in the intervals between irrigations. [Table 3]
[0034] Example 2 Ginseng seedling cultivation test: (1) Preparation of cultivation containers A cultivation container similar to that of Example 1 was prepared, except that the holes in the lid of the cultivation container were opened at a height that did not cover the seedling raising medium on the side of the container. (2) Cultivation using containers Using the cultivation containers prepared in (1), cultivation was carried out in four containers under the same conditions as in Example 1, except for the following conditions. Watering was initially carried out with 4.5 L, and then, once the moisture content of the seedling medium had dropped to 8% (standard value for watering), the water content was increased to 21-23%. Ventilation was also carried out under the conditions shown in Table 4 below. The ginseng seedlings were harvested 167 days after sowing. [Table 4]
[0035] (3) Results <Growth> The state of the seedlings in the cultivation container 126 days after sowing and in the buckle container 167 days after sowing is shown in Figure 4. The appearance of the roots of the harvested seedlings is shown in Figure 5. Furthermore, the number and rate of successful seedlings weighing 0.5g or more and the number of excellent seedlings weighing 1g or more for the four containers combined are shown in Table 5. [Table 5]
[0036] From these results, it was found that although the 6-hour fan was inferior to the positive control, it had a higher number of excellent seedlings weighing 1g or more and a higher rate of successful seedlings compared to the negative control and the 1-hour fan. From this, it was found that the seedlings obtained were in good condition if ventilation was performed including the light period and the total ventilation time was 4 hours or more.
[0037] <Irrigation> Table 6 shows the results of measuring the number of irrigation times and intervals during the above cultivation. The number of irrigation times was 7 times with positive control, 2.8 times with 6-hour fan control, 0.3 times with 1-hour fan control, and 0 times with negative control. It was found that the number of irrigation times was drastically reduced with 1-hour fan control and negative control. However, the number of successful seedlings was low with 1-hour fan control and negative control, making them impractical. This shows that if ventilation is intermittent and the total ventilation time during the light period is 4 hours or more, the number of irrigation times can be reduced and the seedlings obtained are in good condition. [Table 6]
[0038] Example 3 Ginseng seedling cultivation test: (1) Preparation of cultivation containers The same cultivation container as in Example 2 was used. (2) Cultivation using containers <Rice husk mulch> Cultivation was carried out in the same cultivation container as in Example 2 under the same conditions as in Example 1, except for the seedling raising medium, ventilation, and irrigation. Six liters of Akadama soil (large grain) was added to the seedling raising medium, followed by 24 liters of a 1:1 mixture of Cucurbitaceae and Solanaceae soil, with 3 liters of rice husk mulch laid on top. Ventilation was carried out using a ventilation fan with a 6-hour light period (on 15 min, off 15 min cycle). Irrigation was initially carried out with 4.5 liters, and then increased to 23% once the moisture content of the seedling raising medium had dropped to 8% (standard irrigation value). Ginseng seedlings were harvested 201 days after sowing. <Black and white multi> Six liters of Akadama soil (large grain) was added as the seedling raising medium, followed by 27 liters of a 1:1 mixture of Cucurbitaceae and Solanaceae soil. A black and white mulch (manufactured by Takiron C.I. Co., Ltd.) was then laid on top of the mixture. Cultivation was carried out in the same cultivation containers and under the same conditions as in Example 1, except for ventilation and irrigation. Ventilation was carried out under the same conditions as with the rice husk mulch. Irrigation was initially carried out with 4.5 liters, and then, once the moisture content of the seedling raising medium had dropped to 8% (the standard value for irrigation), the water content was increased to 22%. Ginseng seedlings were harvested 201 days after sowing. <Control> The plants were grown under the same conditions as those with black and white mulch, except that no black and white mulch was used, and harvested after 201 days.
[0039] (3) Results <Growth> The number and rate of successful seedlings weighing 0.5g or more, and the number of excellent seedlings weighing 1g or more are shown in Table 7. In all cultivations, ginseng seedlings were observed to have grown sufficiently, and it was found that the presence or absence of mulch material had no effect on growth. [Table 7]
[0040] <Irrigation> Table 8 shows the results of measuring the number of irrigation times and intervals in the above cultivation. The number of irrigations was three times for the control, two times for the plants using rice husk mulch, and two times for the plants using black and white mulch. The irrigation intervals were longer for the plants using rice husk mulch and black and white mulch. These results show that the use of mulch materials can reduce the number of irrigations. [Table 8]
[0041] Example 4 Multi-stage cultivation test of ginseng seedlings: (1) Preparation for multi-tiered cultivation Two cultivation containers similar to those in Example 2 were stacked vertically and placed horizontally on a shelf. An LED light source was installed on the outside of the cultivation container, straddling the sides of the cultivation container, and light was irradiated from the side of the container. A schematic diagram of multi-tier cultivation is shown in Figure 6. Controllers were attached to the ventilation fan and LED. In addition, cultivation containers with and without a light-reflecting sheet (Reflemo (Growth), Dai Nippon Printing Co., Ltd.) attached as a reflector to the inside of the lid were prepared, and these were designated as test areas with and without reflector, respectively. In addition, the test area in which light was irradiated from above the container was designated as a control, and was the same as in Example 3. (2) Multi-tiered cultivation using cultivation containers Cultivation was carried out using the same cultivation container as in Example 2 and under the same conditions as in Example 1, except for ventilation, seedling culture medium, irrigation, and light source. Ventilation was carried out in the same manner as in the control of Example 3 (a 6-hour light period (ON 15 min - OFF 15 min cycle)). The seedling culture medium was the same as in the control of Example 3 (6 L of Akadama soil (large grain) was added, followed by 27 L of a 1:1 ratio of Cucurbitaceae culture medium to Solanaceae culture medium). Irrigation was initially with 4.5 L, and then, once the moisture content of the seedling culture medium had dropped to 8% (the standard value for irrigation), it was increased to 22%. The photon flux density (PPFD) of the surface of the seedling culture medium at the point closest to the LED across the container from the light source (outside the cultivation container) was measured using a spectrophotometer (C-7000, Sekonic Corporation), and was found to be approximately 500 μmol m -2 ·s -1 When measuring the photon flux density, the lid of the container was removed and the light-receiving part was oriented toward the LED. A 12-hour light period and a 12-hour dark period were set. The ginseng seedlings were harvested 201 days after sowing.
[0042] (3) Results The results of the number of successful seedlings and the rate of successful seedlings are shown in Table 9. The number of irrigation times and the interval between irrigation times are shown in Table 10. Sufficient thickening of ginseng seedlings was observed in all cultivations. Compared to the control with a light source on the top as in Example 1, the rate of successful seedlings was slightly lower with the light source on the side, but this did not affect the number of irrigation times (2 to 3 times), and it was found that ginseng seedlings could be sufficiently cultivated even in multiple tiers. [Table 9] [Table 10]
[0043] Example 5 Ginseng seedling cultivation test: (1) Overview of the cultivation equipment Using the same cultivation containers as in Example 2, two cultivation containers were stacked vertically and placed horizontally on a shelf as in Example 4. LEDs serving as light sources were installed on the outside of the cultivation containers, straddling the sides of the cultivation containers, and light was irradiated from the sides (one or both sides) of the containers. The same reflector as in Example 4 was installed by sandwiching it on the backside of the lid (inside the container). (2) Dense planting test <Test area> The seeding amount per cultivation container was 50, 150 or 300 seeds, and two levels of LED irradiation method (single side irradiation / double side irradiation) were used for the 300 seeds, resulting in a total of four test plots. <Cultivation conditions> The fan was set to operate repeatedly during the light period, with 15 minutes on and 30 minutes off (a total of 4 hours on and 20 hours off). The fan started operating and the LEDs turned on from the fourth day after sowing (however, in the case of side-on illumination, illumination from the other side began from the 18th day after sowing). The seedling raising medium was the same as the rice husk mulch used in Example 3. The moisture content of the seedling raising medium was limited to 21-22%, and watering was performed when it fell below 9% (the standard value for watering). However, if the moisture content of the seedling raising medium was less than 9% on the day before harvest, watering was not performed.
[0044] (3) Results The results for the number of successful seedlings and the rate of successful seedlings are shown in Table 10. In the test plots with 150 or 300 seeds sown per container, where 50 seeds were sown per container as in Examples 1 to 4, both the average seedling weight and the rate of successful seedlings were lower when sown on one side than when sown on the 50 seed. However, in the test plot with 300 seeds sown on both sides and sown on the 300 seed, both the average seedling weight and the rate of successful seedlings were higher than when sown on the 50 seed. The lower average seedling weight and rate of successful seedlings in the test plot with 300 seeds sown were thought to be due to insufficient light intensity, and it was found that dense planting with 150 or 300 seeds improves seedling production efficiency. In this test, the average seedling weight and rate of successful seedlings were both lower in the test plot with 50 seeds sown than in the test plot with a reflector in Example 4 under the same conditions. This is thought to be because the fan operating time (total ventilation time) in Example 5 was a total of 4 hours per day, which was shorter than the total of 6 hours in Example 4, and it was found that a fan operating time (total ventilation time) of 6 hours or more per day is more preferable. [Table 11]
[0045] The light intensity of the LED irradiation in Example 5 was measured in the containers after harvesting, and the results are shown below. Photon flux density (PPFD) was measured on the surface of the seedling medium using a spectrophotometer (C-7000, manufactured by Sekonic Corporation) at three points per container: proximal (inside the container closest to the LED), middle (center of the container), and distal (inside the container farthest from the LED). When measuring photon flux density, the lid of the container was removed, and the light-receiving part was oriented toward the LED. [Table 12] [Industrial Applicability]
[0046] The method for cultivating ginseng seedlings of the present invention can be used to cultivate ginseng seedlings from seeds. [Explanation of symbols]
[0047] 1 cultivation container 2 Buckle Containers 3. Ventilation fan 4 Ventilation holes 5 Seedling growing medium 6. Ginseng seedlings 7. LED fluorescent lamps 10 Multi-tiered cultivation using cultivation containers
Claims
1. A method for cultivating ginseng seedlings, comprising placing a seedling raising medium in a sealable container equipped with a ventilation means, sowing ginseng seeds in the seedling raising medium, and irrigating the seedlings, Set up a light period and a dark period, Ventilate the room at least during the daytime.
1. A method for cultivating ginseng seedlings, comprising:
2. 2. The method for cultivating ginseng seedlings according to claim 1, wherein the total ventilation time is 4 hours or more.
3. 2. The method for cultivating ginseng seedlings according to claim 1, wherein when the moisture content of the seedling raising medium falls below a reference value for irrigation, the seedlings are irrigated so that the moisture content is at least 5% by mass higher than the reference value for irrigation.
4. 2. The method for cultivating ginseng seedlings according to claim 1, wherein the seedling raising medium is covered with a mulch material.
5. The method for cultivating ginseng seedlings according to any one of claims 1 to 4, wherein the cultivation is carried out by stacking the containers.
Citation Information
Patent Citations
Curable resin composition
JP1989065110A