JPH10276513A - Germination promotion method and plug tray cover - Google Patents

Abstract

(57) [Abstract] [Problem] Simple and convenient without using expensive seedling raising equipment.
Provided is a method for accelerating germination, which can provide a high germination rate and can improve uniformity of germination. SOLUTION: A germination promotion method using a plug tray cover made of a soft material capable of holding a space above a plug tray.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a germination promoting technique.

[0002]

2. Description of the Related Art In a plug tray nursery, a large-scale farmer, a shipping community, or an agricultural cooperative uses a seedling raising machine or the like to control the temperature and humidity to conditions suitable for germination and germination when raising seedlings. I went. However, other ordinary farmers came to use these facilities because they were uneconomical. However, in this case, both the germination rate and the germination rate were low, the germination was poor, and the growth of the seedlings was uneven. Here, various measures have been considered, but none of them has advantages and disadvantages, and is simple and effective.

[0003]

An object of the present invention is to provide a method for promoting germination, which can easily obtain a high germination rate without using an expensive seedling incubator and can make uniform emergence. Aim.

[0004]

According to the present invention, a plug tray is covered with a plug tray cover capable of holding a space above a plug tray made of a soft material. It is a germination promotion method. In other words, this plug tray cover can keep the temperature and humidity suitable for germination and germination without using expensive equipment such as seedling incubators, and promote germination and germination at the same level as when using seedlings. can do. Moreover, since it is made of a soft material, it is easy to handle, and can be easily folded or superposed even when stored, so that it is not damaged even if handled somewhat sloppyly.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, it is necessary that a cover for a plug tray has a shape corresponding to the plug tray. Thereby, germination can be promoted only by putting the plug tray cover on the plug tray, and the handleability is improved. In the present invention, if the cover for the plug tray is made of a sheet made of a soft material, and the space formed above the plug tray can be held by the reinforcing portion formed by overlapping the sheet made of the soft material, rigid reinforcement of columns or the like can be achieved. Good handling and durability are required because no material is required, the flexibility of the soft material is not lost, and there is no risk of the reinforcing part being damaged or other parts being damaged by the reinforcing part. Can be.

In the present invention, the soft material sheet is
Examples include a plastic film, a plastic sheet, and a cloth. It is desirable that such a plug tray cover has a light transmitting property. Thus, the germinated plant body that has been sprouted by the plug tray cover having light transmittance can immediately perform photosynthesis by sunlight. Here, the light transmittance includes not only the light transmittance of a transparent material but also the light transmittance of a cloth or the like accompanied by light scattering.

[0007] Generally, woven fabrics are relatively poor in light transmittance except for some exceptions such as gauze, and woven fabrics having high light transmittance such as gauze are expensive. Therefore, in the case of using a cloth, a nonwoven fabric which is relatively inexpensive and yet has high light transmittance is desirable. Note that many nonwoven fabrics have lower durability and mechanical strength than woven fabrics, and therefore are preferably nonwoven fabrics reinforced with fibers such as continuous fibers.
Such a material is obtained by bonding a biaxial or triaxial glass fiber fabric and a nonwoven fabric with an adhesive (Nitto Bo)
Etc. are known. It has mechanical strength and light transmittance comparable to that of gauze, and is relatively inexpensive.

In the present invention, it is desirable that the cover for the plug tray is substantially non-water absorbing. That is, when the plug tray cover of the present invention is made of a soft material and has water absorption, if it absorbs water, its own weight increases and it becomes difficult to hold a space above the plug tray, and in order to surely hold this space, It is necessary to make the whole rigid, or a rigid reinforcing material is required, so that the effect of the present invention tends not to be obtained. Here, in the present invention, a material having such a degree of water absorption that does not require reinforcement can be used as substantially non-water-absorbing.

Here, preferred materials in the present invention include nylon, polypropylene, polyethylene, polyacrylonitrile, polyester, vinyl chloride and the like. It is desirable that these materials are appropriately modified in various properties such as weather resistance, light resistance and water resistance as long as they do not affect the water absorption and flexibility. In addition, intense summer heat often has an adverse effect on the promotion of germination and subsequent growth of plants. Here, if the plug tray cover has an infrared blocking effect, germination can be promoted without being affected by the extreme heat in summer.

[0010] Here, there are reflection and absorption as a method of shielding infrared rays. Generally, the former uses a light interference phenomenon of a thin film, and the other uses a reflectance characteristic of a metal or the like constituting the thin film. A gold thin film or the like is used, and the latter is achieved by a copper compound, nickel, cobalt, iron, selenium, or the like. In addition, it is possible to achieve the object by using an organic substance, but it is preferable to use an inorganic substance in consideration of stability during long-term use. Here, it is desirable that the infrared rays be shielded by reflection. That is, when the absorption is performed, heat is also transmitted to the plug tray side to some extent, and the internal temperature rises, and may exceed the temperature suitable for germination and emergence. When a film or the like is used as infrared shielding, durability can be improved by reinforcing with a nonwoven fabric, a biaxial or triaxial glass fiber braid, or the like. In addition, it is desirable that a part of the film has a hole so that ventilation is possible to some extent.

Further, if the plug tray cover is in the form of a bag covering the plug tray, and the opening of the bag is narrowed, the plug tray can be set on the plug tray. The plug tray cover is prevented from coming off or coming off due to the influence of the above. Here, the mouth may be narrowed by a string in a so-called drawstring bag shape, or may be narrowed by elasticity of rubber or the like, but in the latter case, the setting operation is easy. If the shape of the plug tray cover of the present invention (shape when set on the plug tray) is a rectangular parallelepiped shape without a bottom surface, the plug tray is fitted and no extra wrinkles are generated. In addition, the plants that have emerged in the plug tray are uniformly illuminated by sunlight, so that good growth uniformity can be obtained.

Next, the plug tray cover of the present invention will be specifically described with reference to the drawings. 1 is an example of the plug tray cover according to the present invention. This is a nonwoven fabric made of vinylon (TNV2016A made by Nitto Bo) reinforced with a triaxial glass fiber fabric, and has a rectangular parallelepiped shape without a bottom surface. It is practically non-absorbent, and the side of the plug tray cover,
That is, the gore portion 1a is a so-called gore (town), and is integrated with the main body portion by sewing. Since the sewing machine hook is overlapped with the main body and folded back like a sewing portion indicated by reference numeral 1b in the figure, the plug tray cover can be used without the reinforcing material as shown in FIG. Can be maintained. That is, the sewing portion acts as a reinforcing portion. Although the sewing is performed here, the reinforcing portion may be formed by using an adhesive, or by a general method such as fusion and pressure bonding. Further, a bag binding portion is formed on the bottom side as shown by reference numeral 1c in the figure, and a rubber cord passes through the portion so as to be slightly narrowed, so that it is easy to attach / detach to / from the plug tray as a plug tray cover. There is, however, that it is not inadvertently removed by other handling or wind. Such a plug tray cover 1α is used by being set on the plug tray 2 and the tray as shown in FIG.

FIG. 3 shows an example of a plug tray cover having an infrared shielding function. This plug tray cover 1
The whole β is made of a non-woven fabric 1e reinforced with a triaxial glass fiber braided cloth, but the infrared reflection film (visible light transmittance 6
A gold-deposited film (Lumicool No. 5000, manufactured by Lintec Corporation) having a reflectance of 0% and an infrared reflectance of 78% is attached. FIG. 4 is a model diagram showing an image of the effect of the plug tray cover 1β. Plug tray cover 1
β is maintained in the form by the structure as described above, so that the space 4 (height 10c) where the seedlings grow above the plug tray
m) is formed. That is, even a plant that grows very quickly or a plant that tends to fluctuate can be sufficiently handled.

Infrared light, which is a long-wavelength component in sunlight, incident from above the plug tray cover 1β is reflected by the function of the infrared reflection film 1f of the plug tray cover 1β, and most of the infrared rays enter the inside of the plug tray cover 1β. Can not do. On the other hand, much of the visible light can reach the interior. Therefore, the growth of the plant after emergence is promoted by the light. FIG. 5 shows the cover 1 for the plug tray.
The plug tray cover 1γ made of the infrared reflective film used in β is shown. This is a plug tray cover 1
Unlike β, it does not use a nonwoven fabric and is composed only of an infrared reflective film. In addition, a ventilation hole 1g for ventilation is provided on the side surface. FIG. 6 shows an example of a plug tray cover (plug tray cover 1δ) made of a drip-free film as another example. Since this film is made of a drip-free film, a so-called drip-free effect is obtained, and the generation of drills and mist is suppressed, and the occurrence of diseases can be suppressed by preventing over-humidification.

[0015]

【Example】

[Examples 1 and 2: Sprouting test in early spring (mid March)] Cover 1α for plug tray shown in FIG. 1 (Example 1) and cover 1δ for plug tray made of drip-free film shown in FIG. (Example 2) Tomato was cultivated using (Example 2). As Comparative Example 1, cultivation was performed in the same manner without using the plug tray cover.

A plug tray with 16 rows, 8 rows and 128 holes is filled with a commercially available seedling culture medium, set in a tray, and seeded with tomato seeds (House Momotaro), and then watered to the extent that water seeps out from the bottom hole of the tray. Was. On the third day thereafter, watering was not performed.

The plug tray cover 1α or 1δ was set on the plug tray and cultivated in a greenhouse for 5 days. After 5 days, the lid was removed and cultivation was continued in the greenhouse.
At this time, germination status, temperature, soil temperature (1.5 cm depth soil temperature (a place that greatly affects germination and growth of young plants)), soil moisture content (measurement by infrared moisture meter: measurement 5 days after sowing) Examined.

At the same time, as Comparative Examples 1 and 2, plug trays sown in the same manner as in Examples 1 and 2 were prepared in the same greenhouse as in the Example (Comparative Example 1) without the plug tray cover, and (Comparative Example 1). Example 2) Cultivation was performed in a seedling incubator (28 ° C., dark condition) without a plug tray cover. Table 1 shows the history of the budding rate at this time, and Table 2 shows various cultivation environmental conditions.

[0019]

[Table 1]

[0020]

[Table 2]

From Tables 1 and 2, it can be seen that in Examples 1 and 2 using the plug tray cover according to the present invention, the germination rate reached on the 5th day after sowing was equivalent to that germinated in an expensive seedling incubator. You can see that At this time, the emergence uniformity was also good. This is probably because the plug tray cover kept the soil at a suitable temperature for germination and soil moisture.

[Examples 3 and 4: germination test in summer] 7
In the middle of the month, tomato was cultivated in the same manner as in Example 1 except that the plug tray covers 1β and 1γ were used. As a comparative example, as in Comparative Examples 1 and 2, germination and germination were performed without a cover for a plug tray, in a greenhouse (Comparative Example 3) and without a cover for a plug tray, and in a seedling incubator. Table 3 shows the history of the budding rate at this time, and Table 4 shows various cultivation environmental conditions.

[0023]

[Table 3]

[0024]

[Table 4]

According to Tables 3 and 4, when the plug tray cover having the infrared reflective layer according to the present invention is used,
It can be seen that a germination rate equivalent to that germinated in an expensive seedling incubator can be obtained. At this time, the emergence uniformity was also good. This is presumably because the plug tray cover having the infrared reflective layer kept the temperature and soil moisture appropriate for emergence.

From these Examples and Comparative Examples, it can be seen that the plug tray cover having the infrared reflective layer can obtain a good germination promoting effect even in a severe heat period. In the above-described embodiment, the plug tray cover is capable of holding a space above the plug tray by the reinforcing portion formed by overlapping the soft material sheets, so that the growth of the seedling is not hindered. In addition, these plug tray covers have a bag shape that covers the plug tray, and are set in the plug tray by closing the opening of the bag, so that the handleability is good.

[0027]

According to the method for promoting germination of the present invention, the use of an inexpensive plug tray cover can provide a germination rate substantially equal to that of the method for promoting germination using an expensive seedling incubator. In addition,
Since the cover for the plug tray is made of a soft material, it has good handleability and durability, is easy to store and manage, and is easily attached to and detached from the plug tray. In addition, since the space is held above the plug tray to cover the plug tray,
In particular, it does not hinder the growth of extremely fast growing individuals.

[Brief description of the drawings]

FIG. 1 is a model diagram showing an example (made of nonwoven fabric) of a plug tray cover according to the present invention.

FIG. 2 is a model diagram showing a method of using the plug tray cover of FIG. 1;

FIG. 3 is a model diagram showing an example of a cover for a plug tray according to the present invention (made of nonwoven fabric, with an upper surface infrared reflective film attached).

FIG. 4 is a model diagram showing an effect of an infrared reflection layer of the cover for a plug tray of FIG. 1;

FIG. 5 is a model diagram showing an example (made of an infrared reflective film) of a cover for a plug tray according to the present invention.

FIG. 6 is a model diagram showing an example of a plug tray cover (made of a drip-free film) according to the present invention.

[Explanation of symbols]

 1α An example of the plug tray cover of the present invention 1β An example of the plug tray cover of the present invention 1γ An example of the plug tray cover of the present invention 1δ An example of the plug tray cover of the present invention 1a Gore portion 1b Stitch portion 1c Bag binding Part 1d String 1f Infrared reflective film 1g Vent 2 Plug tray 3 Receiving tray 4 Space

Claims (11)

[Claims] 1. A method for promoting germination, comprising using a plug tray cover made of a soft material capable of holding a space above the plug tray. 2. A plug tray cover made of a soft material, wherein the plug tray cover covers the plug tray while holding a space above the plug tray. 3. The plug tray cover according to claim 2, wherein the plug tray cover has a light transmitting property. 4. The plug tray cover is made of a soft material sheet, and a space above the plug tray can be held by a reinforcing portion formed by overlapping the soft material sheet. The plug tray cover according to claim 2 or 3. 5. The plug tray cover according to claim 2, wherein the plug tray cover is substantially non-water absorbing. 6. The plug tray cover according to claim 2, wherein the plug tray cover is made of a resin sheet. 7. The plug tray cover according to claim 2, wherein said plug tray cover is made of a non-woven fabric. 8. The plug tray cover according to claim 7, wherein the nonwoven fabric has a reinforcing portion. 9. The plug tray cover according to claim 2, wherein the plug tray cover has an infrared shielding effect. 10. The plug tray cover according to claim 2, wherein the plug tray cover has a bag shape covering the plug tray, and is set in the plug tray by closing a mouth of the bag. The plug tray cover according to claim 9. 11. The plug tray cover according to claim 10, wherein the plug tray cover has a rectangular parallelepiped shape without a bottom surface when used.