JP2022158773A - Plant culture tool and plant culture method using the same - Google Patents

Abstract

To provide a plant culture method capable of improving, a rooting ratio, a survival rate, and production efficiency of a scion being a part of object plants, in producing in cuttage, potted plant seedlings comprising complete properties of rootlets with complete branch leaves and neat branches.SOLUTION: There is provided a plant culture tool which is configured so that, an environment change adjusting unit is arranged on a lower part of a culture vessel having one or more holes on a bottom part thereof and holding for culture of plant, soil and porous materials therein, the environment change adjusting unit holding the culture vessel, having an opening to ambient air at a contact part with the culture vessel and having a hole on a bottom part thereof. There is also provided a plant culture method using the same plant culture tool. By arranging the environmental change adjusting unit having an opening on a top face thereof, by contact with the ambient air and gaps in the environmental change adjusting unit, it is possible to relax dryness, over humidity in culture soil affected by the ambient air and sudden environmental change in the culture vessel such as a change of temperature, and it is also possible to culture while keeping a weak degree, therefore a rooting ratio can be enhanced.SELECTED DRAWING: Figure 1

Description

Description of the details of the invention

To provide a culturing tool and a culturing method for improving production efficiency in producing bonsai seedlings with branches and leaves finely thickened, well-arranged branches, and many fine roots elongated and substantial by using a propagation method using cuttings.

Bonsai seedlings are focused on the shape and number of branches and leaves, and the branches that are arranged so that they can fit on the top of the pot are preferred. In terms of the method of propagation of bonsai seedlings of plants with the desired traits, the preferred method of propagation is by cuttings or roots that inherit the traits of the parent tree, rather than seed propagation where the traits of the parent tree may not be inherited. be
Propagation by cuttings not only inherits the traits of the parent tree, but also produces a large number of seedlings, resulting in high production efficiency, and is a preferred culture method. However, among the plants that are frequently used for bonsai, cuttings such as five-leaf pine take several months to root, and the clear rooting period is limited from early summer to autumn. It is expensive, and the production efficiency of bonsai seedlings by cuttings is extremely low compared to miscellaneous trees. For example, supply cannot keep up with demand for bonsai seedlings of Zuisho, a Japanese white pine, for which a bonsai that retains the traits of the parent tree can be obtained from a single parent tree through propagation of cuttings and layers.

Plant roots consist of thick roots called coarse roots that support the plant structure, and fine roots with a diameter of 2 mm or less that absorb and breathe water and nutrients. As in the case of planting on the ground or planting in a large flowerpot, when the rough root is thick and grows long, the above-ground branches and leaves tend to grow long and large. In the case of bonsai seedlings, roots, trunks, branches, and above-ground parts of leaves that match the limited size of the pot are required. often done. When coarse roots are removed, the number of fine roots that absorb and breathe water and nutrients also increases, and the branching of fine roots becomes finer and richer, so that branches and leaves above the ground grow finely, and tend to exhibit traits suitable for bonsai seedlings. There is In addition, it is important to have fine roots in order to efficiently take in water, nutrients, and oxygen from the limited amount of soil in the pot.

On the other hand, fine roots are essential for the growth of trees, but they are sensitive to environmental changes such as moisture concentration, temperature, and oxygen concentration in the soil, and are prone to wither and die. short lifespan. In other words, environmental changes in the soil affect the development of fine roots, which is important for the traits of bonsai seedlings.

At the early stage of cuttings, there are no fine roots and sufficient moisture is especially required. Therefore, there are methods for cultivating cutting seedlings by arranging water under the culture container to supply water or by contacting a water-absorbing member. However, in the method of contacting a water-absorbing member as in Patent Document 1, a state in which the soil has too much moisture, a so-called over-humidified state, occurs for a long time, and cuttings of tree species such as five-leaf pine, which dislikes over-humidity, develop fine roots. Excessive moisture in the culture soil after roots may lead to the death of fine roots.

On the other hand, a sudden temperature change in the middle of winter, such as a sudden rise in the temperature of the outside air in the middle of summer, causes environmental changes in the culture soil. Mitigation of sudden environmental changes is not sufficient with only the water absorbent member. Environmental changes in the culture soil when the lower part is covered with a water-absorbent material or submerged in water affect not only the temperature but also the decrease in oxygen concentration and changes in the species in the culture soil. It is also conceivable that fine roots that have just taken root will die. When plastic pots, which are impermeable to air and water through the walls, are used as culture vessels, the structure that allows contact with the outside air is thought to be effective in mitigating sudden environmental changes in the culture soil.

Moderate dryness and moderate oxygen concentration also have the effect of promoting the growth of fine roots. The contact between the outside air and the medium and the retention of air in the medium promote the growth of fine roots. On the other hand, using a medium with a large particle size increases the porosity of the medium. It is also known to encourage root growth by using a medium with a large particle size that is not too dry. It is important for bonsai seedlings grown in the limited space of pots to increase branched fine roots and cultivate plants with well-rounded roots by adjusting environmental changes such as humidity, temperature, and oxygen. .

Patent Document 2 discloses a container and a method for keeping the upper surface of a plant cultivation pot in a high-humidity state and the lower portion in a low-humidity state. However, for plants that grow naturally in regions with four seasons, where temperature and sunshine change, the demand for water and oxygen changes. Therefore, a shape in which high humidity is sent to the upper part and low humidity air is sent to the lower part in a substantially closed container is not sufficient for environmental change control. In addition, when the roots grow sufficiently after rooting and the fine roots protrude into the low-humidity air, the growth of the fine roots is suppressed.

For general plants, culturing in a plastic pot that does not allow water or air to pass through the walls of the pot often promotes growth because of its high water-holding effect. In addition, plastic pots are lightweight and highly workable when handling multiple seedlings, and are frequently used to increase production efficiency. However, in a pot that does not allow water and air to pass through, tree species such as five-leaf pine, which do not like excessive humidity, sometimes die due to excessive humidity or lack of oxygen, and the cuttings themselves wither and do not grow. On the other hand, unglazed pots that allow air containing water, oxygen and carbon dioxide to pass through have been used for a long time as pots for cultivating cuttings. It cannot be said that it is superior in wall thickness and ease of damage. In addition, unglazed materials that are permeable to water and air may complicate the control of the culture environment when trying to maintain a low degree of dryness to promote the growth of fine roots. When a plastic pot is used alone or an unglazed pot is used, taking cuttings of Japanese white pine Zuisho as an example, the rooting rate of the cuttings after one year is often less than 10%, and the rooting rate of the cuttings is not stable.
It is very important to control the environment in the culture vessel and maintain an environment in which rooted fine roots can grow without dying.

In terms of the shape of bonsai seedlings, branches and leaves that grow finely and are arranged so that they can fit on a pot are preferred. Normally, when growing in a large pot used in a field or general gardening, there are few fine roots, and tap roots and thick roots that grow directly below without branching often extend. It is known that the extension of taproots and thick roots tends to cause the above-ground branches to grow large, thick, and rough. In order to create a shape with fine branches and leaves, which is preferred for bonsai seedlings, the tap root and thick root are cut and replanted, and many fine roots grow to enrich both the aboveground and underground parts. . However, the operation of cutting and replanting the roots is complicated and damages the bonsai seedlings. It is important to control the environment in the culture vessel without complicated operations, and to enrich the fine roots of plants in a small amount of culture soil in order to improve the efficiency of seedling production by cuttings of bonsai seedlings.

Therefore, there is a demand for a plant culture tool and a method for cultivating cuttings of Goyomatsu, which has a low production efficiency, by using plastic pots with good operability and adjusting the culture environment so as to continue rooting and growing.

JP 2019-024396 (paragraph number 0009) Japanese Patent Application Laid-Open No. 2009-219456 (paragraph numbers 0009 to 0010), FIG.

The present invention relates to a method of propagating plants by cuttings, which requires culturing, rooting, and growing in a plastic pot for a long period of time in order to produce bonsai seedlings with broad branches, finely thickened branches, and a large number of elongated fine roots. The purpose is to improve the rooting rate, survival rate, and production efficiency of cuttings (cuttings) and cuttings that are part of the target plant.

Means that invention solves

The present invention is a tool for cultivating plants, which holds soil and a porous material for culturing, and holds the culture vessel at the bottom of the culture vessel having one or more holes in the bottom. To provide a plant culturing tool having an opening to the outside air at a contact part with a culture container and having an environmental change adjusting device for adjusting the change of culture environment in the culture container.

Furthermore, the present invention provides a plant culture tool in which the environmental change control device has an opening on the top and a hole on the bottom.

In addition, an environmental change control device that holds the culture vessel and has an opening on the top while holding the culture vessel is placed at the bottom of the culture vessel that holds the soil and porous material for culturing and has one or more holes in the bottom. The present invention provides a method for cultivating a plant using the above-described plant culture tool.

The present invention provides a culture tool in which the plant is a cutting, particularly Goyomatsu.

Effect of the invention

When the culture tool for the plant of the present invention is used, by arranging an environmental change control device having an opening on the upper surface at the bottom of the culture container, the humidity in the culture soil is changed by contact with the outside air and the gaps in the environmental change control device. , temperature, oxygen concentration, etc. can be mitigated, and the rooting rate has been improved by enabling cultivation while maintaining a weak degree of dryness.

Environmental changes in the humidity in the culture vessel can be alleviated by the diffusion of moisture into the opening of the environmental change control device at the bottom of the culture vessel and the space in the soil in the environmental change control device. Even if drying progresses in the culture vessel due to the humidity of the air, it has the effect of regulating the humidity. This regulatory effect makes it possible to maintain a slightly dry condition, which has the effect of promoting rooting.

On the other hand, a sudden temperature rise in the outside air in midsummer and a sudden change in temperature to below freezing in midwinter cause environmental changes in the culture soil. Sudden high or low temperatures in the culture vessel can be suppressed by filling the soil with grains in the environmental change control device and by air in the gaps and the air flow in the gap between the culture vessel and the environmental change control device. can be done. Furthermore, rapid changes in the outside air affect not only the temperature, but also changes in species and oxygen concentration in the culture soil, and it is conceivable that fine roots die under the influence of environmental changes. As for the oxygen concentration, the structure connecting the opening that can directly contact the outside air and the air gap of the environmental change control device is effective in mitigating the environmental change.

In culturing plants using the culture tool of the present invention, the soil in the culture vessel is watered from the top surface, but excess water that cannot be absorbed by the soil in the culture vessel is absorbed by the soil in the environmental change control device, and is further regarded as surplus water. The boiled water is drained.

On the other hand, the presence of the environmental change control device can suppress rapid drying in the culture vessel, so it is possible to minimize the volume of soil to be used. A small volume of culture soil prevents rooted fine roots from continuing to grow freely in the horizontal and vertical directions, thereby suppressing the growth of tap roots and thick roots. Suppression of tap roots and thick roots tends to suppress the growth of above-ground parts, and seedlings with traits suitable for bonsai seedlings can be obtained. On the other hand, the holes between the culture vessel and the environmental change control device are only blocked by a net and are not completely separated. The extension of fine roots into the soil inside the control device is completely prevented and not hindered, and they can grow beyond the mesh at the bottom of the culture vessel.

It is possible to increase the rooting efficiency of cuttings and the production efficiency of bonsai seedlings by mitigating sudden changes in the environment in the culture container while maintaining traits suitable for bonsai seedlings.

FIG. 4 shows an example of the culture tool of the present invention.

In FIG. 1, the culture vessel (1) has an open upper surface (2) and one or more holes (7) in the bottom (3). Any structure can be used as long as the hole is closed to the extent that the liquid does not fall. A round flowerpot (pot) may be used, and various commercially available plastic pots such as a cube, a rectangular parallelepiped, and a trapezoid can be used. In order to reduce the difference in environmental changes depending on the position inside the culture container, the effect of the present invention can be easily obtained by using a plastic pot with a length and width of 25 mm to 40 mm and a height of 30 mm to 40 mm. An example of a plant culture container has a top surface of 37 mm in length and width, and a bottom surface of 28 mm in length and width and 36 mm in height (Meiwa Co., Ltd. Cellbox 49 holes, etc.).

In addition, by choosing a plastic material that does not allow water and air to pass through, it is easier to control humidity, temperature, oxygen concentration, etc. than a breathable clay pot, and maintains a weak dryness to promote rooting. things are possible. The soil used in the culture vessel is preferably a mixture of Akadama soil, Kanuma soil, Kiryu sand, Fuji sand, or the like, or used singly. It is not limited to these, depending on the characteristics of the plant. As for the particle size, small particles having a diameter of 1 to 12 mm, particularly 1 to 5 mm are used. It is generally known that grain size affects root development. A relatively large particle size can be selected to the extent that it is not too dry, and it is expected that it may promote root development.

As the environmental change adjusting device, the same culture vessel having a top surface of 37 mm in length and width and a bottom surface of 28 mm in length and width and 36 mm in height can be used. The environmental change control device may have an open top surface (5), one or more holes (9) in the bottom, and a mesh (10) placed over the holes.
The top surface (5) of the environmental change control device and the bottom (3) of the culture vessel are combined by using, for example, a container in which the top surface of the environmental change control device is 37 mm long and wide, and the bottom surface of the culture container is 28 mm long and wide. It is possible to secure an opening at the site where the Outside air can enter through the site (opening) where the culture vessel (1) and the environmental change control device (4) are combined. The shape as an example of an environmental change control device has the effect of regulating sudden changes in humidity, temperature, oxygen concentration, etc. in the culture vessel (1) by the outside air entering.

Soil, etc., is placed in the environmental change control device. Akadama soil, Kanuma soil, Kiryu sand, Fuji sand, etc. are used as soil. At this time, the role of the soil is to control environmental changes such as humidity, temperature and oxygen concentration in the culture vessel (1), and it is preferable that the soil retains moisture and the voids are filled with air. The air that fills the voids between the grains of the medium has a humidity control effect, that is, it prevents over-humidification, while the supply of humidity from the environmental change control device produces an effect of humidifying the culture vessel. Humidification from the environmental change control device to the culture container maintains the cuttings in such a weak dry state as not to kill the cuttings even when the culture container is in a dry state, and promotes the growth of the fine roots of the cuttings.
Rapid temperature changes associated with hot summers and cold winters are moderated by air in the medium voids. In addition, since lack of oxygen in the medium for respiring fine roots causes the fine roots to wither and die, oxygen in the voids is beneficial for the growth of fine roots. In other words, the particle size of the soil, which affects the porosity, affects the humidity control effect, the effect of mitigating changes in the outside air temperature, and the effect of adjusting the oxygen concentration. For example, in Goyomatsu, which is vulnerable to excessive humidity in the soil, in order to prevent extreme temperature changes and prevent oxygen concentration shortages, in order to secure voids in the soil in the environmental change control device, Akadama soil, for example, is used as the soil. It is desirable to use grains with a diameter of 1 mm to 12 mm, and it is particularly desirable to use medium grains with a diameter of 6 to 12 mm.

The culture tools may be used singly or in combination. In order to improve the production efficiency, it is desirable to use a plurality of connected units, and for example, Meiwa Co., Ltd. Cellbox 49 holes can be used.

In the culture according to the present invention, the soil in the culture vessel is watered from the top surface, and excess water flowing out of the culture vessel flows into the environmental change control device. Furthermore, excess water other than water absorbed by the medium in the environmental change control device is discharged from the bottom hole.
For the water to be given, Hyponex high-grade vitality liquid "Hiponex" is a registered trademark) (Hyponex Japan Co., Ltd.), Thermotech "Thermotech" is a registered trademark) (Fujimi Engei Co., Ltd.), Menedale "Menedale" is a registered trademark) (Menedale Co., Ltd.), and Hyponex undiluted solution "Hyponex" is a registered trademark) (Hyponex Japan Co., Ltd.).

For rooting using the culture tool of the present invention, it is suitable for cultivating cuttings with a particularly low rooting rate, especially Goyomatsu, whose fine roots are susceptible to excessive humidity.

In the production of bonsai seedlings with well-arranged branches and fine roots by a culture method using cuttings, the present invention provides the rooting rate and survival of cuttings that are part of the target plant. To provide a tool for improving productivity and production efficiency, and a plant culture method using the tool.

EXAMPLES The present invention will be described with reference to the following examples, but the present invention is not limited thereto.

(Preparing cuttings)
Six new leaves of Goyomatsu Zuisho in June were cut into 25 to 35 mm pieces with a commercially available razor as cuttings to be used for the cuttings. The cuttings were soaked overnight in Hyponex High Grade Vitalizing Solution diluted 200 times with water.

(Culture vessel and environmental change control device)
As an environmental change control device, one pot with a top length of 37 mm _x width 37 mm, a bottom length of 28 mm _x width 28 mm, and a height of 35 mm was cut off from the cell box 49 holes (Meiwa Co., Ltd.), and a pot bottom net was used as a net inside. Hosome (Yue bonsai) was placed above the hole and used. In the environmental change control device, medium red balls (6 to 12 mm in diameter) were placed in a line (about 10 mm from the bottom), followed by small red balls (1 to 5 mm in diameter) stacked up to 5 mm below the top surface. As a culture container, one pot was separated from the cell box, and a pot-bottom net was placed over the hole inside, as in the environmental change control device. The culture container was superimposed on the upper surface of the environmental control apparatus, and medium-sized red balls (6 to 12 mm in diameter) were placed in a line (about 10 mm from the bottom), followed by small-sized red balls to 5 mm below the top.

(How to cut a cutting)
A rooting agent α-naphthylacetamide (Luton (“Luton” is a registered trademark), Sumitomo Chemical Gardening Co., Ltd.) was applied to the cut end of the cutting, and about two-thirds of the bottom of the cutting was buried in potting soil. Similarly, 6 cuttings were inserted. After 6 cuttings were planted, Hyponex high grade revitalizing agent diluted 100 times with water was sufficiently given from the top surface.

(Culturing process)
The culture tool of Example 1 was put in a basket tray Kofuka (Kaneya Sangyo Co., Ltd.) so that drainage would not be blocked from the holes in the bottom of the environmental change control device, and placed outdoors in the presence of wind and rain. .
In consideration of the effects of rain and wind, water is poured from the top surface of the culture container through the holes of the environment control device when the surface of the soil in the culture container partially or completely changes color due to drying and becomes slightly moist. Tap water was sprinkled by a shower to such an extent that the water flowed out. In a normal culture state, by sprinkling about 50 mL of water per culture tool, the water reliably flows out from the holes at the bottom of the environmental control device. The average watering interval was once or twice a day in summer, and once every two to three days in autumn and winter. About 10 mL of Hyponex high-grade revitalization solution diluted 200 times with water was sprayed from the top of the culture vessel once in about two months.

(result)
After 8 months, the survival rate of each cutting was 0 when all buds, leaves and branches were brown and seemed to have died, and more than half of the stems with some green leaves turned brown. 1 indicates that the leaves are green, and 2 indicates that the buds and branches are not clearly discolored to brown (excluding those that have fallen due to physiological defoliation). Table 1 shows the average values. The survival rate of cuttings after 8 months was 1. Furthermore, as shown in Table 1, clear rooting of 10 mm or more was confirmed in one of the six cuttings.

An experiment was conducted in the same manner as in Example 1, except that a medium-sized red ball (diameter: 6 to 12 mm) was placed in the environment change adjusting device to a depth of about 5 mm below the upper surface.

(result)
The survival rate was quantified in the same manner as in Example 1, and the average value of 6 cells is shown in Table 1. The average value after 8 months showed 1. Furthermore, as shown in Table 1, clear rooting of 10 mm or more was confirmed in two of the six cuttings.

(Reference example 1)
The environmental change control device was the same as in Example 1, except that a row of medium-grained red balls (6 to 12 mm in diameter) (approximately 10 mm from the bottom) was inserted, and fine-grained Fuji sand (diameter of 1 mm or less) was inserted to approximately 5 mm below the top surface. A similar experiment was conducted.

(result)
The survival rate was quantified in the same manner as in Example 1, and the average value of 6 cells is shown in Table 1. The average value after 8 months showed 1.8. However, as shown in Table 1, rooting was not confirmed in 6 cuttings. The survival rate was good, but the fine Fuji sand with a diameter of 1 mm or less in the environmental change control device has an extremely low porosity, and the soil for the culture container does not become weakly dry, promoting rooting of cuttings. presumably could not.

(Comparative example 1)
(Culture vessel)
The experiment was conducted in the same manner as in Example 1, except that the environmental change control device was not used.

(result)
The survival rate was quantified in the same manner as in Example 1, and the average value of 6 cells is shown in Table 1. The average value after 8 months showed 1. However, as shown in Table 1, rooting was not confirmed in 6 cuttings.

(Comparative example 2)
(Culture vessel)
The experiment was conducted in the same manner as in Example 1, except that the medium-sized red ball (6 to 12 mm in diameter) was put into the culture vessel up to 5 mm below the upper surface without using the environmental change control device.

(result)
The survival rate was quantified in the same manner as in Example 1, and the average value of 6 cells is shown in Table 1. After 8 months the average value decreased to 0.8. Furthermore, as shown in Table 1, rooting was not confirmed in 6 cuttings.

(Comparative Example 3)
(Culture vessel)
Without the use of environmental change control devices. The experiment was conducted in the same manner as in Example 1, except that a row of medium-grained red balls (6 to 12 mm in diameter) was placed in a culture container (about 10 mm from the bottom), followed by fine-grained Fuji sand (1 mm or less in diameter) up to 5 mm below the top surface. did

(result)
The survival rate was quantified in the same manner as in Example 1, and the average value of 6 cells is shown in Table 1. The average survival rate after 8 months was 0, that is, all the plants died.

As shown in Table 1, Examples 1 and 2 were shown to have survival rates equal to or higher than those of Comparative Examples 1, 2 and 3. Furthermore, when comparing the rooting rate, in Examples 1 and 2, rooted seedlings were confirmed, but in Comparative Examples and Reference Examples, there were cuttings with clear rooting of 10 mm or more. didn't.

Table 1 shows the average numerical survival rate of 6 cuttings after 8 months, the number of cuttings with roots of 10 mm or more, and the rooting rate.

(Preparing cuttings)
As cuttings to be used for cuttings, 20 February buds of Goyomatsu Zuisho were cut off with a commercially available razor so as to have a size of 20 to 55 mm. The cuttings were soaked for 5 days in Hyponex high grade vitality liquid diluted 200 times with water.

(Culture vessel and environmental change control device)
As a culture vessel, the upper surface changes into a wavy shape, and soil, etc. is put in, and the cuttings are stuck in two-thirds of the way, allowing light to enter while avoiding strong winds. A container with a height of 85 mm and a height of 50 mm, the outer lower container of Kitchen Deli Thick Beef Stew Pie (“Kitchen Deli” is a registered trademark) (Itoham Co., Ltd.) was used. The top surface of the culture vessel may be flat, but by changing the top surface, it is possible to balance the damage to the cuttings from strong winds and the ease with which light can enter. At the center of the bottom of the culture vessel, there was an upward bulge with a diameter of 60 mm and a height of 5 mm.

As the environmental change control device, a container having an opening to the outside air in the vicinity of the contact portion with the culture container while holding the culture container, and a container of the outer lid portion of Kitchen Deli Rich Beef Stew Pie were used. In use, the lid portion of the container was turned upside down, and the container had an upper inner diameter of 120 mm, a bottom diameter of 75 mm, and a height of 55 mm.

In addition, in the culture container, two plastic plates of 95 mm in the upper part, 85 mm in the lower part, and 30 mm in height were intersected at the center in order to partition a plurality of cuttings and to reduce the difference in environmental changes depending on the position inside the culture container. I got the board. A medium-sized red ball (6 to 12 mm in diameter) was put into the environmental change adjusting device by about 15 mm from the bottom. The culture vessel was placed on top of the environmental control device, medium-sized red balls (6 to 12 mm in diameter) were put in about 15 mm from the bottom, and then small-sized Kiryu sand: Kanuma soil: red balls were mixed at a ratio of 1:1:3. Mixed soil was put in to a height of 1.5 mm.

(How to cut a cutting)
A rooting agent α-naphthylacetamide was applied to the cut end of the cutting, and about 1/2 of the lower part of the cutting of about 20 to 35 mm and about 2/3 of the lower part of the cutting of about 35 to 55 mm were buried in soil. . A total of 5 cuttings were inserted into each container, two in the case of about 20 to 35 mm cuttings and one in other cases, in a section separated by a partition plate of one container. Another set of culture tools was prepared from a combination of a culture container having the same contents and a cutting stuck in an environmental change control device. After the cutting was completed, a high-grade activator was diluted to 200 times from the upper surface, and a high-performance plant activator Thermotech dedicated to bonsai was diluted to 1000 times with water and sprayed sufficiently from the top.

(Culturing process)
The culture tool of Example 3 was put in a seedling growing container (Appleware Co., Ltd.) so as not to block the drainage from the bottom hole of the environmental change control device, and placed outdoors in the rain and wind.
In consideration of the effects of rain and wind, water is poured from the top surface of the culture container through the holes of the environment control device when the surface of the soil in the culture container partially or completely changes color due to drying and becomes slightly moist. Tap water was sprinkled by a shower to such an extent that the water flowed out. In a normal culture state, by sprinkling about 150 mL of water per culture tool, the water reliably flows out from the holes at the bottom of the environmental control device. The average watering interval was about once every one to two days in spring.

(result)
As for the survival rate, buds, leaves, and branches were all green in each cutting after 2 months, and elongation of the buds was observed. If the container is for single use, it can be used even if a partition plate is inserted.

(Comparative Example 4)
In the environment change control device, the cuttings and the same tree species Goyomatsu Zuisho soil on the top surface were shredded finely with a mesh along with the moss growing on the surface and the organisms that were thought to be mycorrhizal fungi that had occurred on the temporary roots, and then sprinkled on the surface. , the experiment was carried out in the same manner as in Example 2.

(result)
In each cutting after 2 months, buds, leaves and branches were all green, and bud elongation was observed. The moss on the climate control device was elongated. The environmental change control device can also be used to observe mycorrhizal fungi, which are said to greatly contribute to the growth of conifers, and to evaluate the indirect improvement of the soil environment.

1 is a perspective view of a culture vessel and an environmental change control device according to Examples 1 and 2 of the present invention; FIG. FIG. 3 is a bottom view of the bottom of the culture vessel according to Examples 1 and 2. FIG. It is the figure which showed the bottom part of the environmental change adjusting device which concerns on Example 1 and 2 from the lower side. 1 is a perspective view of a culture container and an environmental change control device according to Examples 1 and 2. FIG. FIG. 10 is a perspective view of a culture container and an environmental change control device according to Example 3 of the present invention; It is the figure shown from the culture container upper surface side. It is a perspective view of a partition plate. FIG. 11 is a side view of a culture vessel according to Example 3; FIG. 10 is a diagram showing the bottom of the culture vessel according to Example 3 from below. It is the figure which showed the bottom part of the environmental change adjusting device which concerns on Example 3 from the lower side. FIG. 10 is a perspective view of a culture vessel and an environmental change control device according to Example 3;

Reference Signs List 1... Culture vessel 2... Culture vessel top surface 3... Culture vessel bottom part 4... Environmental change control device 5... Environmental change control device top surface 6... Environmental change control device bottom part 7... Culture container bottom hole 8... Mesh 9... Environmental change control device bottom part Holes 10 Net 11 Cuttings 12 Culture vessel 13 Upper surface of culture vessel 14 Partition plate 15 Bottom of culture vessel 16 Environmental change control device 17 Environmental change control device top surface 18 Environmental change control device bottom 19 Culture container Bottom hole 20...Net 21...Environmental change control device Bottom hole 22...Net

Claims (6)

A tool for cultivating a plant, which holds soil and a porous material for culturing, and holds the culture vessel at the bottom of the culture vessel having one or more holes in the bottom, while holding the culture vessel and the A plant culture tool having an opening to the outside air at the contact part of the plant, and an environmental change control device arranged for the purpose of controlling changes in the culture environment of the culture vessel. 2. The plant culture tool according to claim 1, wherein the environmental change adjusting device has an opening on the top surface and a hole on the bottom, and retains soil or a porous substance inside. A medium for culturing and a porous substance are held, and a culture container having one or more holes in the bottom, and a medium and a porous substance are placed in the lower part of the culture container, which has an opening at the top while holding the culture container. 2. The plant culture method using the plant culture tool according to claim 1, wherein a maintained environmental change control device is arranged. The culture tool according to claim 1 or 2, wherein the plant is a cutting. The culture method according to claim 3, wherein the plant is a cutting. The culture tool according to claim 1 or 2, wherein the plant is Goyomatsu.

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