JPH10276585A - Method for promoting budding and plut tray lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote budding and to efficiently obtain fruit vegetables, etc., with a high budding rate and also an excellent budding uniformity even in a little dry environment without using an expensive nursery cabinet by using a light permeably plut tray lid. SOLUTION: Budding is promoted through the use or light, permeable plug tray lid 1 for shielding infrared-rays. Preferably, the plug tray lid 1 is superimposition possible on a plug tray so as to be coated, is provided with a handle part 1a and, moreover, is provided with an infrared-ray reflecting layer 1b on its front surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a germination promoting technique.

[0002]

2. Description of the Related Art When raising seedlings in plug tray seedlings, large-scale farmers, shipping communities, or agricultural cooperatives use equipment such as seedling raising equipment to control the temperature and humidity to conditions suitable for germination and emergence. I went. However, such equipment is uneconomic for other ordinary farmers,
Came without being used. 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.

[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, there is provided a method for promoting germination using a light-transmissive plug tray cover, in order to solve the above-mentioned problems. In other words, this plug tray lid can keep the temperature and humidity suitable for germination and germination without using expensive equipment such as seedling incubators, and promote germination and germination to the same level as when using seedlings. can do.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a plug tray lid needs to have a shape corresponding to a plug tray. Thereby, germination can be promoted only by putting the plug tray cover on the plug tray, and the handleability is improved. The plug tray cover of the present invention desirably shields infrared rays when used in summer. That is, it is preferable that the material does not have a transmittance to infrared rays. This infrared shielding property prevents the plug tray side from becoming hot in the summer, so that the temperature is suitable for germination and germination, and as a result, the humidity is suitable for germination and germination.

Here, there are reflection and absorption as a method of shielding infrared rays. In general, 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. 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 of the lid to some extent, and the internal temperature increases, which may exceed the temperature suitable for germination / germination.

The lid for the plug tray used in the present invention may be an infrared shielding layer having an infrared shielding property as a whole, or an infrared shielding layer provided on the surface of a substrate made of, for example, glass, resin film or transparent resin. It may be something. At this time, a film may be formed directly on the surface of the substrate, or may be formed by attaching a film having an infrared shielding function to the substrate. Further, when an infrared shielding layer is provided on the surface of the substrate, it is desirable to provide the infrared shielding layer on both surfaces of the substrate since a more complete effect can be obtained. In addition, it is preferable that the infrared shielding layer is capable of transmitting almost all visible light, or one that absorbs little light of a wavelength required by the plant seedling to be cultivated. That is, the plants that have emerged can immediately undergo photosynthesis when exposed to sunlight.

Next, an example of the plug tray cover of the present invention will be specifically described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a plug tray cover according to the present invention. It has a handle 1a at the center of the upper surface for easy handling,
Since the side surface 1d has a wide lower portion and is easy to overlap, the storage space for storing a large number can be extremely small.

[0009] An infrared reflective sheet (a visible light transmittance of 60% and an infrared reflectance of 78% of a gold vapor-deposited film (Lumicool 5000 manufactured by Lintec Co.) ) Is provided to provide an infrared reflection layer 1b.A step portion is formed on a side surface 1d of the plug tray lid 1 as shown by a reference numeral 1e in Fig. 2. Note that Fig. 2 shows this plug tray. Lid 1
It is a model figure explaining the usage of. Since the step 1e abuts on the upper surface 2a of the plug tray 2, a space (10 cm in height) for growing seedlings is formed above the plug tray. That is, even a plant that grows very quickly or a plant that tends to fluctuate can be sufficiently handled. At this time, a gap is formed between the plug tray lid 1 and the stepped portion 1e, and air flow is somewhat generated, but is substantially prevented. As a result, the inside is kept at a temperature and humidity suitable for germination and germination. . In addition, 3 in the figure
Is a saucer.

FIG. 3 is a model diagram showing an image of the effect of the lid 1 for the plug tray. Infrared light, which is a long-wavelength component in sunlight, incident from above the plug tray lid 1 is reflected by the function of the plug tray lid 1, and most of the infrared rays cannot enter the inside of the plug tray lid 1. On the other hand, most of the visible light can reach inside. Although the example having the handle portion is shown here, when the presence of the handle portion causes disadvantages such as optics, the shape of the handle portion may be appropriately selected or the handle portion may be omitted.

[0011]

【Example】

[Example 1: Sprouting test in early spring] Tomato is cultivated using the same plug tray cover as the plug tray cover shown in FIG. 1 but having no infrared reflective layer (Example 1). Was. A commercially available seedling culture medium was filled into a 16-column, 8-row, 128-well plug tray, set in a saucer, and seeded with tomato seeds (House Momotaro), and irrigated to the extent that water oozed from the bottom hole of the tray (3). Mid-month). After that, 3
On the day, no irrigation was performed.

The plug tray was covered with the lid for 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, the germination status, temperature, soil temperature (1.5 cm depth soil temperature (a place that greatly affects the germination and growth of young plants)), soil moisture content (measurement by infrared moisture meter: data 3 days after sowing) It was examined (Example 1).
At the same time, the plug trays in which seeding was performed in the same manner as Comparative Example 1 and Comparative Example 2 were performed in the same greenhouse as in Example 1 (Comparative Example 1) without the plug tray lid, and in the seedling incubator without the plug tray lid (28 C. and dark conditions) (Comparative Example 2). Table 1 shows the history of the budding rate at this time, and Table 2 shows various cultivation environmental conditions.

[0013]

[Table 1]

[0014]

[Table 2]

From Tables 1 and 2, it can be seen that in Example 1 using the plug tray cover of the present invention, the germination rate reached 5 days after sowing, which was equivalent to that germinated in an expensive seedling incubator. I understand. At this time, the emergence uniformity was also good. This is thought to be due to the fact that the plug tray lid kept the soil at a suitable temperature for germination and soil moisture.

[Examples 2 and 3: germination test in summer] 7
In the middle of the month, tomato was cultivated in the same manner as in Example 1. Example 3 used a plug tray lid without an infrared reflective layer as in Example 1, Example 3 used a plug tray lid with an infrared reflective layer as Example 3, and Comparative Example 3 used a plug tray lid without a plug tray lid. Cultivation was carried out in the same greenhouse as in (Comparative Example 3) and in a seedling incubator (28 ° C., dark condition) (Comparative Example 4) without a tray lid. Table 3 shows the history of the germination rate at this time.
Table 4 shows various cultivation environmental conditions.

[0017]

[Table 3]

[0018]

[Table 4]

As shown in Tables 3 and 4, among the examples using the plug tray lid of the present invention, when the plug tray lid having the infrared reflective layer was used, the germination occurred in the expensive seedling incubator. It can be seen that a germination rate equivalent to that of the above is obtained. At this time, the emergence uniformity was also good. This is a temperature suitable for budding by a plug tray lid having an infrared reflective layer,
It is thought that it was kept in soil moisture. These Examples and Comparative Examples show that the plug tray lid having the infrared reflective layer can obtain a good germination promoting effect in an extremely hot season.

Examples 4 and 5: Budding test in a dry atmosphere Next, the effect of the plug tray lid of the present invention in a dry atmosphere was examined. A plug tray lid without an infrared reflective layer (Example 4) and a plug tray lid with an infrared reflective layer (Example 5) were set on two plug trays seeded in the same manner as in Example 1. Together with the seeded plug tray without lid (Comparative Example 5), and placed in an artificial weather device (28 ° C., dark, RH = 30%), and the subsequent germination rate was examined. Table 5 shows the results.

[0021]

[Table 5]

From Table 5, it can be seen that the germination rate is high in the test plot using the plug tray lid of the present invention, and the germination uniformity is good. This is considered to be because the environment around seeds required for germination can be maintained by using the plug tray lid of the present invention even in a dry atmosphere.

[0023]

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 growing device. In the case of using a plug tray lid having an infrared reflection layer, the effect can be obtained throughout the year. Furthermore, the germination promotion method of the present invention can provide a high germination rate even in a dry environment.

[Brief description of the drawings]

FIG. 1 is a model diagram showing an example of a plug tray lid according to the present invention.

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

FIG. 3 is a model diagram showing an effect of an infrared reflecting layer of the plug tray lid of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Example of the plug tray lid of this invention 1a Handle part 1b Infrared reflective layer 1c Resin part 1d Side surface 1e Step part 2 Plug tray 3 Receiving tray

Claims (7)

[Claims] 1. A method for promoting germination, which is performed using a light-transmissive plug tray cover. 2. The germination promoting method according to claim 1, wherein the plug tray cover shields infrared rays. 3. The germination promotion method according to claim 2, wherein the plug tray lid for shielding the infrared rays reflects the infrared rays. 4. A lid for a plug tray, which covers the plug tray and has a light transmitting property. 5. The plug tray cover according to claim 4, wherein the plug tray cover shields infrared rays. 6. The plug tray lid according to claim 4, wherein the plug tray can be overlapped. 7. The plug tray cover according to claim 4, further comprising a handle.