JPH0241301B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a device for growing healthy seedlings, and more specifically, to a device for growing healthy plant seedlings. Let's explain the case.

Prior Art In modern rice cultivation, which has become more mechanized, rice seedlings are grown all at once in a predetermined location, and after they have grown to a predetermined value, they are supplied to each farmer for rice planting. An important issue is how to supply healthy seedlings, and if healthy seedlings are planted, the growth after planting will be much better. Therefore, in order to produce healthy seedlings, it is important to grow them for several days after germination, and if sufficiently controlled light is supplied during this period, healthy seedlings can be grown.

Purpose The present invention was made in view of the above-mentioned circumstances, and in particular, the present invention was made for the purpose of supplying healthy plant seedlings.

Structure FIG. 1 is a partial plan view for explaining one embodiment of the healthy seedling growing apparatus according to the present invention, and FIG. 2 is a partial front view, in which 1 indicates a pallet forming a seedbed;
2 is a side light source device, 3 is an upper light source device, 4 is a pallet mounting shelf, each seedbed 1 is filled with culture soil in a well-known manner, seeds are sown, and seedlings 5 are grown. In order for the seedlings 5 to grow healthily, it is necessary to provide adequate temperature, humidity, carbon dioxide gas, etc., as well as sunlight, etc. necessary for photosynthesis, with the light adjusted to suit the growth of the plants. However, temperature, humidity,
In order to keep the carbon dioxide content at an appropriate level, it is necessary to set up the seedbed indoors.However, if the seedbed is set up indoors, it cannot receive sunlight, and conventionally, it is difficult to use dimmed light. It was difficult to obtain. Then,
The applicant first focuses sunlight or artificial light using a lens or the like, introduces it into a light guide, transmits it to any desired location through the light guide, and uses it for illumination or other purposes such as growing plants, chlorella, etc. Various proposals have been made for use in culturing. Additionally, the applicant previously proposed a light radiator that effectively diffuses sunlight or artificial light transmitted through a light guide as described above and supplies it to plants (patent application
59-117241).

FIG. 3 is a sectional view for explaining an example of the optical radiator previously proposed by the present applicant, in which 10 is a transparent cylindrical body, 20 is a light guide, 30 is an optical means, and 4
0 is a liquid pump, and a light emitting end 20a of a light guide 20 is disposed at one end of the cylindrical body 10, and the light transmitted through the light guide 20 is transmitted through the light guide 20.
The light is emitted into the cylindrical body 10 from the light emitting end 20a of the cylindrical body 10, and is propagated toward the other end while being reflected by the inner and outer wall surfaces of the cylindrical body 10. The cylindrical body 10 is filled with optical oil, and
A transparent cylindrical optical means 30 is slidably disposed, one end surface of the optical means, that is, the surface 30a on the side through which light is propagated, is formed into a flat surface, and the opposite side is formed with an inclined surface 30b. and the inclined surface 30b
The outside is kept in an air layer by a cover member 35. Therefore, the light L introduced into the cylindrical body 10 as described above is directed to the plane 30a of the optical means 30.
enters the optical means 30 from the opposite inclined surface 3
It is reflected by 0b and emitted to the outside of the cylindrical body 10. Plants are planted outside the cylindrical body 10, and the light emitted from the cylindrical body 10 as described above is supplied to the plants as a photosynthetic reaction light source. Further, a pipe 41 is provided at one end of the cylindrical body 10.
The open end of the optical means 30 is opened at the other end, and the open end of a pipe 42 is opened at the other end, and a differential pressure is applied between both ends of the optical means 30 by these pipes 41 and 42, and this differential pressure causes the optical means to 30 is movable within the cylindrical body 10, thereby making it possible to supply light over a wide range. 61,62
is a photo sensor disposed on the outer peripheral surface of the cylindrical body 10 on the side through which the light reflected by the optical means 30 passes, and the optical means 30 reaches one end by the photo sensor 61. detects that
The detection signal controls the liquid pump 40 to provide a pressure difference that moves the optical means 30 toward the other end, while the detection signal 62 indicates that the optical means 30 has reached the other end. The detection signal controls the liquid pump 40 to provide a pressure difference which in turn moves the optical means towards said one end. The photo sensors 61 and 62 are configured to be detachable from the cylindrical body 10 or movable along the cylindrical body 10. In this way, the movement range of the optical means 30 can be set arbitrarily. Therefore, the light supplied from the light guide 20 can be efficiently supplied to the plants. 31
is a permanent magnet disposed on the outer peripheral surface of the optical means 30 at a position where it does not interfere with the passage of the light reflected by the reflective surface 30b, and the new permanent magnet or magnetic body 31 is integrated into the optical means 30. In this case, the position of the optical means can be detected by detecting the permanent magnet or magnetic body 31. In this case, the photo sensors 61, 62 are replaced by magnetic sensors 63, 62. 64 is used. Note that the position signals detected by the magnetic sensors 63 and 64 are
As with the photo sensor, it is used to control the liquid pump 40, thereby moving the optical means 30. Reference numeral 12 denotes a permanent magnet or magnetic body disposed on the outer surface of the cylindrical body 10 so as to extend along the axial direction of the cylindrical body 10. The permanent magnet or magnetic body 12 directs the optical means 30 in a desired direction. We are trying to regulate it. That is, at least one of the permanent magnet or magnetic body 31 disposed in the optical means 30 and the permanent magnet or magnetic body 12 disposed in the cylindrical body 10 is composed of a permanent magnet. A magnetic attraction force acts between the permanent magnet or magnetic body 31 and the permanent magnet or magnetic body 12, and the optical means 30
is a permanent magnet or magnetic material 3 due to this magnetic attraction force.
1 moves while facing a permanent magnet or magnetic body 12 on a cylindrical body. In the illustrated example, since the permanent magnet or magnetic body 12 is arranged linearly, the optical means 30 moves linearly, that is, without rotational movement. When arranged spirally around the cylindrical body 10, the optical means 3
0 moves with a rotational movement, and when arranged in a zigzag pattern, it moves while rotating, in other words, swinging from side to side. In addition, 32 is a silicone rubber coated on the outer periphery of the optical means 30 and the part through which the light reflected by the optical means does not pass.When the periphery of the optical means is coated with silicone rubber in this way, the optical means 30 and the cylindrical body 10 are improved, and by moving the optical means 30, the cylindrical body 1
There is no possibility that the inner wall surface of 0 will be scratched.

If the above-described light radiator is used as the light source device 2 and/or 3 in the healthy seedling growing apparatus according to the present invention shown in FIGS. 1 and 2, sufficient light can be supplied to the seedlings 5, and especially If the lateral light source device 2 supplies light from the side of the plant during the period when a large amount of light is required, healthy seedlings can be grown more reliably. In particular, around April to May when rice seedlings are grown, the climate is not always favorable, and ultraviolet rays and UV rays are exposed during the two to three days when a particularly large amount of light is needed.
Since it is not possible to grow healthy seedlings unless a sufficient amount of cool light that is modulated to avoid infrared rays, heat rays, etc. is provided, not only sunlight but also artificial light is introduced into the light guide 20. If artificial light is supplied to the light guide 20 during bad weather or at night, healthy seedlings can be grown more reliably.

Various proposals have been made to use electric lighting to grow plants, but since electric lighting generates heat, especially when growing weak plants such as seedlings, this heat can actually slow down the growth of the plants. may be inhibited and, in some cases, may even wither. However, as in the present invention, once sunlight or artificial light is supplied to plants through a light guide, infrared rays in particular are absorbed within the light guide, and no heat rays are applied to the plants, making it difficult for plants to grow. can be done more effectively.

In addition, although the embodiment in which rice seedlings are grown has been described above, the present invention is not limited to the above embodiment, and may be applied to other plants, such as
It can also be used to grow healthy seedlings of flowers, vegetables, fruit trees, etc. It is also possible to grow mushrooms, animals (including fish), etc. that absorb oxygen and release carbon dioxide gas. It absorbs oxygen and releases carbon dioxide, which plants need.
The amount of carbon dioxide gas used can be saved and plants can be grown at low cost. Furthermore, in cell cultivation, etc., each cell is planted and multiplied to become a seedling.
At this time, communication with the outside world is cut off, allowing for sterile growth.

Effects As is clear from the above explanation, according to the present invention, healthier seedlings can be supplied, and at the same time, mushrooms, animals, cells, etc. can be effectively grown.

[Brief explanation of the drawing]

Fig. 1 is a partial plan view showing an example of a healthy seedling growing device according to the present invention, Fig. 2 is a partial front view, and Fig. 3 is a partial plan view showing an example of a moving light source used in carrying out the present invention. It is a diagram. 1... Seedbed pallet, 2, 3... Mobile light source device, 4... Pallet mounting shelf, 5... Seedlings.

Claims (1)

[Claims] 1. A nursery provided indoors for growing plant seedlings, and a light source that runs approximately parallel to the floor surface of the nursery, so that light from the light source is supplied from the side of the seedlings. A healthy seedling growing device, wherein the light source comprises a light guide through which light is transmitted, and a light reflector that travels approximately parallel to the floor surface of the seedbed,
A healthy seedling growing device characterized in that the light emitted from the light guide is reflected by the light reflector to supply light from the side of the seedling.