JP2014045747A - Growing method for strawberry seeds and growing material used for the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a growing method for a nursery plant in which spores of anthracnose is not mixed and spattered with rain or watering splash and a material used for the method.SOLUTION: In a growing method for strawberry seeds, the strawberry seeds grow on soil. A flexible three dimensional net-shaped structural material is placed onto the root part of the strawberry seeds. The root part passes through this structural material, and then grows and roots in the soil. Thereby, splashing is prevented during raining or watering.

Description

  The present invention relates to a method for growing a koji strain that is less susceptible to anthracnose and a growth material used therefor.

  In recent years, potato cultivation has been carried out in various places. In the cultivation of this cocoon, the seedlings that arrived at the runners from the parent plant that was normally planted around April are cultivated by receiving the seedlings in the pot and soil in the pot in June, and the seedlings grown until September are planted in this field. The method to be taken is taken.

  However, the most important thing to watch out for is the transmission of anthracnose. This anthracnose is the most disliked disease against wrinkles, with local lesions such as leaves, petioles, and runners and systemic pathologies where the strains wither and die. The source of this anthracnose is due to the latently infected parental strain and the diseased strain residue remaining in the soil. And the spore formed from these is transmitted by being mixed with rain or splashing water.

Infection of anthracnose occurs whether it is in the parental stock of a cocoon or at the time of raising a seedling, and in the case of raising a seedling, for example, a high seedling raising method is proposed, The combination method with hydroponics is considered good. Patent Document 1 proposes a technique for improving the seedling raising method.
The outline of the seedling raising method described in Patent Document 1 is such that a seedling that grows from a cultivation pot in which a parent strain is vegetated is extended downward, and the root of the grown seedling is entrapped in a highly water-absorbing fiber. This is a technology that grows seedlings by supplying or nutrients, cuts them off from the parent strain after predetermined growth, and plantes them in this field together with this fiber.

  However, a drawback of this technique is that moisture and nutrients must not be cut off from the superabsorbent fiber. For example, if the water is depleted, the seedlings will die. In this method, there is a problem that the countermeasure against infection of the anthracnose of the parent strain is not shown, and it is not a sufficient countermeasure.

Japanese Patent Laid-Open No. 11-18564 JP 2003-268668 A Japanese Patent Publication No. 43-16324

  The present invention provides not only countermeasures against the anthracnose infection of the strawberry parent strain but also countermeasures against infection at the time of raising the seedlings of the cocoon seedlings. For example, regarding seedling raising seedlings, there is a seedling raising method in which seedlings that have arrived at runners from a parent plant that has been planted are received by the soil or seedbed in the pot and are cultivated. It is an object of the present invention to provide a seedling raising method that does not scatter and mix with rain or irrigation splash, and materials used therefor.

  The first aspect of the present invention is a method for growing a strawberry strain on soil, wherein a flexible three-dimensional network material is applied to the root portion of the strawberry strain, and the root portion passes through this structural material to grow and settle in the soil. This is a method for growing a strawberry strain, which prevents splash splashing during rain or irrigation.

  The second of the present invention is a flexible three-dimensional network material that is used for the growth method of the above-mentioned koji strain and prevents splashing from splashing during rain or irrigation, and is a flexible three-dimensional network having ventilation and water permeability. It is a structural material, and is preferably selected from polyurethane foam without film, polyurethane foam, rock wool, palm rock, various fiber aggregates, and non-woven paper after removing the cell film during foam molding.

  A more preferable example of such a material is a polyurethane foam in which the cell film is removed from the foamed molding, and the foamed number of cells is 10 to 35 / inch.

And the thickness of this material is about 1 to 5 mm, the size is large enough to cover the pot for storing the soil of the straw stock, and preferably a small size for the root of the straw stock to pass through almost the center of the material. It is a material in which a hole is formed, and further, a material in which a slit reaching the position of the root from the periphery of the material is formed.

  The first aspect of the present invention is an improvement of a conventional method for growing a straw stock, in which the anthracnose spores are prevented from being mixed with rain or irrigation splashes in a very simple manner. The second of the present invention is a material used for this purpose, and adopts a material that has never been used for the method of growing a strawberry stock conventionally and uses it in a special way. This makes it possible to provide a characteristic growth method without the occurrence of anthracnose.

FIG. 1 is a diagram showing the entire first growth method of the present invention. FIG. 2 is an enlarged sectional view thereof. FIG. 3 is a plan view and a central sectional view of the second material of the present invention. FIG. 4 is a plan view and a central sectional view showing a modification of the material. FIG. 5 is a plan view showing a further modification of the material.

  Hereinafter, although the 1st and 2nd form of this invention is demonstrated collectively, as above-mentioned, when obtaining a straw stock, it is a requirement which must be avoided most in the transmission of anthracnose. The main cause of anthracnose is that spores are scattered and mixed with rain and splashing splashes of water, and the first of the present invention is a simple and reliable method to prevent the transmission of this anthracnose. It is possible to prevent it.

  In the first aspect of the present invention, a material that has never been used to prevent rain and irrigation of the straw stock, that is, the second material of the present invention is laid at the root of the straw stock. Thus, the splash is prevented from jumping up, while the object is achieved by allowing the root to pass through this material and grow and settle in the growing soil.

  The second material of the present invention, that is, the flexible three-dimensional network material, has a so-called flat three-dimensional network structure, is a flexible, ventilated and water-permeable material, and an organic or inorganic material exists. Examples thereof include rock wool, palm rock, various fiber aggregates (for example, Patent Document 2), non-woven fabric, non-woven paper, and polyurethane foam. The thickness of this material is about 1 to 5 mm. This is to prevent the splashing of rain and irrigation from occurring, and if it is too thin, it will cause a splash, and if it is too thick, it will hinder root growth. .

The size of the material is such that when the growing soil is put in the pot, the pot is almost covered with the pot, and this prevents the splashing from jumping up.
Preferably, the material is formed with a small hole through which the root of the strawberry passes, in the approximate center of the material, and further, a slit formed from the periphery of the material to the position of the root of the strawberry. It is. In this way, root growth is not hindered, and materials can be applied and exchanged from any stage of the straw stock.

  A preferable material is a soft polyurethane foam material, which is a material from which a cell membrane has been removed during foam molding, and has a so-called three-dimensional network structure. The number of cells during foam molding of this material is about 10 to 35 cells / inch. If the number of cells is too large, the growth of the root portion may be easily disturbed, and if the number of cells is small, splashing may occur. Material thickness and cell count should be considered in relation to each other.

The technology to remove the cell membrane at the time of foam molding and make the polyurethane foam into a three-dimensional network structure can of course adopt a known technology as it is, and the technology to remove the cell membrane by chemical treatment such as alkali in the old days. In recent years, a technique (explosion treatment method) that uses an explosive gas and breaks the film with explosive energy has become mainstream (Patent Document 3).
<First embodiment of the present invention>

  FIG. 1 is an overall view showing an example of the first method for growing a koji stock of the present invention, and FIG. 2 is an enlarged sectional view thereof. In this example, the present invention is applied when a seedling is obtained from the parent strain of the cocoon. The parent strain 10 of the cocoon is vegetated on the soil 12 in the pot 11, and the runner 13 grows from the parent strain 10. Yes. And after the seedling 14 germinates to the runner 13, the pot 17 which put the seedling raising soil 16 is arrange | positioned, applying the 2nd material 20 of this invention to the root part 15. FIG. The root portion 15 of the seedling 14 penetrates the material 20 and settles on the seedling soil 16. In this example, the material 20 is applied even to the parent stock 10. Here, the material 20 was obtained by removing the cell membrane at the time of foam molding and using polyurethane foam, the number of cells was 25 / inch, and the thickness was 2 mm.

  Thereafter, after a predetermined period of time, the seedling is replanted in the main field at a predetermined time. In addition, it is common to plant seedlings taken out of the pot with the material attached to the main field, but further speaking, obtaining a koji strain that does not suffer from anthracnose, this material (especially described later) It is also possible to plant in the main field while applying the material of FIG.

FIG. 2 is an enlarged cross-sectional view of the seedling 14 obtained as described above. Due to the presence of the material 20 on the soil 12 and 16 where the straw stock has settled, even if it is raining or irrigation, splashing from the soil 12 and 16 does not occur, and anthracnose occurs. The main cause was to be suppressed.
<Second embodiment of the present invention>

  FIG. 3 is a plan view and a central sectional view of the second material 20 of the present invention. In this example, the cell membrane of the flexible polyurethane foam 21 having 25 cells / inch is removed by an explosion treatment method. The thickness is 2 mm, and the diameter of the material is 100 mm in accordance with the diameter of the pot in which the soil is put. It is what.

  FIG. 4 is a plan view and a central sectional view showing a modification of the second material 20 of the present invention. In this example, a small hole 22 of 10 mm is formed in the center of the flexible polyurethane foam 21 shown in FIG. 3, which corresponds to the small hole 22 extending from the strain and promotes the growth / establishment of the root. Is. Note that the number of the small holes 22 is not limited to one, and a plurality of small holes may be formed.

  FIG. 5 is a plan view showing a further modification of the second material 20 (the material shown in FIG. 4 in the example) of the present invention. In this example, the material is formed with a slit 23 reaching from the periphery of the material 20 to the position (usually the central portion) of the root of the koji. Needless to say, the formation of the slit 23 can be applied to the material shown in FIG. In any case, the slit 23 can be widened so that the material 20 can be fitted from the side to the root of the straw stock.

  The present invention is an improvement of the growth method of the cocoon strain, and can provide a growth method in which the anthracnose spores are prevented from being scattered and mixed with rain and splashing of irrigation by a very simple method. Yes, it can be widely applied not only to the method of growing cocoons, but also to techniques for obtaining seedlings from the parent strain through runners, and its industrial effect is extremely high.

  In addition, the splash of rain and irrigation jumps not only from the vicinity of the straw stock, but also from the shelf and passage where the straw stock is placed, but by laying the materials used here at these places, the splash splash does not occur, The occurrence of anthracnose in straw stocks will be significantly reduced.

10 parent strain 11 pot 12 soil 13 runner 14 seedling 15 root 16 seedling raising soil 17 pot 20 material 21 flexible polyurethane foam 22 small hole 23 slit

Claims (8)

A method for growing a strawberry strain on the soil, where a flexible three-dimensional network material is applied to the root portion of the cocoon strain, and the root portion passes through this structural material and grows and settles in the soil. A method for growing a cocoon stock characterized by preventing splashing. The flexible three-dimensional network material used in claim 1, wherein the flexible three-dimensional network material has air permeability and water permeability. The flexible three-dimensional network material according to claim 2, wherein the thickness of the material is 1 to 5 mm. 4. The material is selected from polyurethane foam without film, cell membrane at the time of foam molding, polyurethane foam, non-woven paper, non-woven fabric, rock wool, palm rock, and various fiber aggregates. The flexible 3D network material described. The flexible three-dimensional network material according to any one of claims 2 to 4, wherein the material is a polyurethane foam, and the number of cells during foam molding is 10 to 35 cells / inch. The flexible three-dimensional network material according to any one of claims 2 to 5, wherein the material has a size sufficient to cover a pot in which a koji stock is placed. The flexible three-dimensional network-structured material according to any one of claims 2 to 6, wherein a small hole through which the root portion of the koji stock passes is formed at substantially the center of the material. The flexible three-dimensional network material according to any one of claims 2 to 7, wherein a slit is formed from the periphery of the material to reach the position of the root portion of the koji.

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