JPS6339521A - Seedling growing sheet - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a seedling-raising sheet or mat (herein simply referred to as a seedling-raising sheet) suitable for raising seedlings of rice, wheat, and other plants and for rice planting. .

[Conventional technology]

Conventionally, seedlings of rice, wheat, and other plants have been grown using seedling sheets made of mineral cotton, bulbs, or continuous porosity plastic foam that have been sprayed with or impregnated with fertilizer. The seeds are uniformly scattered, covered with soil, watered, heated with electric heat or steam, or placed in a natural atmosphere to germinate, and then the seedlings are transferred to a nursery bed and grown. There is.

[Problem to be solved]

However, as mentioned above, conventional seedling-raising sheets are simply made of porous materials such as mineral cotton, so water easily permeates through them, and they have little water-holding capacity, as well as no fertilizer-holding capacity. Therefore, it is necessary to frequently supply water and fertilizer during the seedling-raising period.

In addition, the seeds are washed away together with the covering soil when water permeates through them, and because the sheets are made of brittle and long-fiber materials such as mineral cotton, various operations such as transferring them to seedling boxes are necessary. Parts of the sheet itself tend to be partially broken off, and this causes problems such as uneven sowing of seeds.

Therefore, the present invention provides a solution to the above-mentioned problems, and has excellent water collection, fertilization, prevention of seedling growth sheet loss, and ability to young seedlings.
Moreover, it is an object of the present invention to provide a sheet for raising seedlings that is easy to handle.

c. Means for Solving Problems] In order to achieve the above object, the seedling-raising sheet according to the present invention is characterized by comprising a fixed layer having an amorphous carbon layer.

It is preferable that the fixed layer of Sea I of the present invention can be easily cut to a desired size by only the shearing action of the plow blade member of the rice transplanter when the seedlings are grown and then transplanted using a rice transplanter. Similar to the case of seedling-raising sheets, it is made of a relatively unsophisticated material made by compression molding mineral cotton or pulp.

On the other hand, the amorphous carbon layer is composed of carbon particles such as smoked charcoal, charcoal particles, or activated carbon. In this seedling-raising sheet, the carbon layer provides the fixed layer with excellent water retention capacity and ability to retain fertilizer and seeds, so it is desirable that the carbon layer has a thickness of about 2 or more times the thickness of the sheet. Also, care should be taken to ensure that the nuclear layer is not easily washed away by water supply. Therefore, according to a preferred embodiment of the present invention, the carbon layer is formed sandwiched between the previous fixed layers.

Seeds of rice, wheat, and other plants can be uniformly scattered on the seedling-raising sheet configured as described above using a normal seeding device, but the seeds are mixed in the carbon layer in advance and added to the seedling seedling sheet 1-. If you leave them attached, the labor of raising seedlings will be that much simpler. Further, the seedling-raising sheet is usually housed in a wooden or plastic seedling-growing box, and when the seeds germinate, it is taken out of the seedling-growing box and transferred to the seedling bed.

[For production]

As outlined above, the seedling-raising sheet of the present invention has an amorphous carbon layer in the fixed fibrous layer made of mineral cotton or pulp, so the carbon layer absorbs moisture and fertilizer. This is maintained for a relatively long period of time, creating a favorable environment for seed germination and seedling growth, and reducing the need for water supply. Moreover, the carbon layer effectively prevents seeds from flowing out due to water supply.

Furthermore, since this sheet for raising seedlings is mainly composed of a relatively thin fixed layer made of the aforementioned fibrous material, when the sheet with sufficiently grown seedlings is planted in a rice field using a rice transplanter, the rice transplanter's It can be easily cut to a desired size using only the shearing action of the plowshare member.

〔Example〕

Examples of the present invention will be described below, but the descriptions are merely illustrative and are not intended to limit the technical scope of the present invention.

FIG. 1 is a perspective view of a paddy rice seedling-raising sheet according to an embodiment of the present invention.

This example sheet (1) has vertical and horizontal dimensions of 300 mm.
In a plastic seedling box (2) with a depth of about 20 mm and a diameter of about 600 mm, first and second fixed layers (3a) and (3b) made of mineral wool are placed as shown in detail in FIG. are laminated, and both fixed layers (3a, 3b
), an amorphous carbon layer (4) made of smoked charcoal, powdered charcoal, or activated carbon, or a mixture thereof, and capable of adsorbing fertilizers, is formed. In addition, paddy rice seeds (5, 5,...
・) is spread, and sterilized covering soil (6) is spread on the second fixed layer (3b) to a thickness of about 5 mm. Incidentally, the sheet (I) of this example has a total thickness of about 18 mm, of which the thickness of the carbon layer (4) is about 7 mm.
It is said that

The seedling raising sheet (11) of this example having the above configuration is a seedling raising box (11) in which a plurality of the sheets (1, L...) are placed in a seedling raising box (11) as shown in FIG. 3(A).
2) Either stack the sheets and place them in the electric heating chamber (H), or if a non-heating method is used, stack the sheets (1, 1,...) as shown in Figure 3 (B). Cover the entire area with a vinyl sheet (S) or a wet gong and wait for the seeds (5) to germinate. In addition, in the case of the natural germination method that uses a mixed seedling bed, as shown in Figure 3 (C), a leveled seedling bed (F
G) Lay out the sheets of this example (11 together with the seedling box (2)) and cover the whole with vinyl sheet 1-(S) and heat insulation sheet) (II
Cover with s).

Once the seeds (5, 5,...) have fully germinated, then the fourth
As shown in the figure, a vinyl sheet (S) or the like is spread on a seedling bed (PG) in which seedlings (1, 1,...) are evenly leveled, and the seedlings are placed side by side on top of the seedling bed (PG), and then watered and sprouted. At the same time as washing, each sheet (1) is made to absorb sufficient water. Also, you should make sure to water the seedlings more abundantly during the raising of the seedlings than when growing them.

When planting rice, take out the seedlings (11) from the seedling nursery box (2) and soak them in water to give them weight. In this case, the approximate weight of the seedlings is 4 kg or more. Finally, the sheet (1, 1,...) is transplanted to the rice field using a rice transplanter, but in this case it is important that the rice field be in shallow water and that the scale should be immersed in water rather than in the water. .

The above has described an example in which the present invention was applied to a sheet for raising seedlings of paddy rice, but it goes without saying that the sheet of the present invention can also be used for raising seedlings of upland rice, wheat, or other plants (and also has an amorphous carbon layer). Of course, it may be formed on the fixed layer or may be formed uniformly dispersed within the fixed layer.

〔Effect of the invention〕

As described above in detail with reference to the embodiments, the present invention has excellent water retention ability, fertilization ability, and young seedling ability by providing a fibrous fixed layer such as mineral cotton with an amorphous carbon layer. Moreover, it is possible to provide a seedling-raising sheet that is easy to handle.
Contributes to improving agricultural efficiency and yield rate.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a sheet for raising seedlings according to an embodiment of the present invention, FIG. 2 is a sectional view of the sheet shown in FIG. 1, and FIGS.
C) is a schematic diagram showing various aspects of the germination work using the sheet shown in FIG. 1, and FIG. 4 is a schematic diagram of the seedling raising work. The meanings of the symbols in each figure are as follows: □ 1: Entire seedling-raising sheet, 2: Seedling-raising box, 3a, 3b: Fixed layer, 4: Amorphous carbon layer, 5: Seed, 6: Covering soil; FG: Seedling layer floor, H: electric heating room, H8: thermal sheet, PG: nursery bed, S: vinyl sheet.

Claims (8)

[Claims] (1) A seedling-raising sheet characterized by comprising a fixed layer having an amorphous carbon layer. (2) The sheet for raising seedlings according to claim 1, wherein the amorphous carbon layer is sandwiched between the fixed layers. (3) The sheet for raising seedlings according to claim 1, wherein the amorphous carbon layer is uniformly dispersed within the fixed layer. (4) The sheet for raising seedlings according to any one of claims 1 to 3, wherein the amorphous carbon layer is smoked charcoal, charcoal grains, or activated carbon. (5) The sheet for raising seedlings according to any one of claims 1 to 4, wherein the fixed layer is made of fibrous material such as mineral cotton or pulp. (6) The sheet for raising seedlings according to any one of claims 1 to 5, wherein the amorphous carbon layer adsorbs fertilizer. (7) The sheet for raising seedlings according to any one of claims 1 to 6, to which plant seeds are attached. (8) The sheet for raising seedlings according to any one of claims 1 to 7, wherein the sheet is for raising paddy rice seedlings.