JP2010022205A - Planting ceramic culture medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide planting ceramic culture media or a planting block excellent in stability in water supply to planting parts. <P>SOLUTION: The planting ceramic culture media 10 includes a porous ceramic substrate. A planting part 11 charged with soil and plants, a water-retaining part 12 charged with a water-containing absorptive polymer, and a fertilizer part 13 charged with substance containing fertilizer are formed inside the substrate. Water can easily move to the planting part 11 from the water-retaining part 12 via a lot of minute holes in the porous material making the planting part 11, the water-retaining part 12 and the fertilizer part 13 apart from one another, and liquid nutrition melted out from the fertilizer part 13 can move to the planting parts 11. Consequently, the water can be stably supplied to the planting part 11 from the water-retaining part 12, and the nutrition can be stably supplied to the planting part 11 from the fertilizer part 13. In addition, the water can be stably taken into the inside of the substrate from the outside of the substrate via a lot of minute holes formed on the surface of the substrate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ceramic medium for planting having a ceramic substrate.

In recent years, greening technology has attracted attention from the background of global warming problems and the like, and many culture media for planting such as greening blocks and water-retaining blocks have been proposed (see, for example, Patent Documents 1 and 2). Generally, in these culture media, a space (water retention part) in which a water retention material such as a water-absorbing polymer is accommodated inside the substrate, and a space in which plants or seeds are disposed and having an opening on the upper surface ( Planting department).
JP 2004-154026 A JP 2002-330632 A

  According to this, the water | moisture content stored in the water retention part from the ground surface etc. can be stably supplied from a water retention part to a planting part. Therefore, for example, even in the case where this medium is embedded in land and used in dry land, the plant (or seed) arranged in the planting part absorbs the water supplied to the planting part. Can be grown and cultivated stably.

  By the way, the present inventor has found that it is preferable to use a porous ceramic substrate as the substrate of such a medium. That is, the ceramic medium for planting according to the present invention includes a water retention part that is a space in which a water retention material is accommodated, and a planting part that is a space in which plants or seeds are disposed and has an opening on the upper surface of the substrate. And a ceramic substrate. And the part between the said water retention part and the said planting part in the said base | substrate is comprised by the porous.

  Here, as the water retaining material, for example, a water-absorbing polymer or the like may be employed. It is preferable that a plurality of the planting parts are provided in the base.

  According to the above-described configuration, for example, the water retaining part and the planting part are arranged with a predetermined distance apart, and a large number of micropores included in the porous ceramic that separates the two are provided without special measures. Thus, moisture can be stably supplied from the water retention unit to the planting unit. Moreover, water absorption of a plant or a seed is not prevented by the water absorption of a water retention material by arrange | positioning a water retention part and a planting part apart. In addition, when a large number of micropores are formed on the surface of the substrate (when the entire substrate is porous), from the outside of the substrate to the inside of the substrate (accordingly, the water retaining portion and the planting portion) through the micropores. Moisture can be taken in stably.

  Furthermore, by separating the water retention part from the planting part, the water storage amount can be freely determined by increasing or decreasing the volume of the water retention part and the amount of the water retention material, and the water storage amount of the water retention part can be adjusted from outside the medium. Moisture can be quantitatively supplied to the plant.

  That is, according to the said structure, the culture medium excellent in the supply stability and quantitative property of the water | moisture content to a planting part can be provided. Therefore, this medium is optimal for cultivation of plants (agricultural crops) in dry land. In addition, by embedding and laying a large number of this medium on land, building walls, etc., it can be used for greening banks, deserts, buildings, and the like.

  In the ceramic culture medium for planting according to the present invention, specifically, for example, the substrate has a shape (for example, a columnar shape) having an axis perpendicular to the upper surface, and the water retaining portion and the planting. Each part also has a shape having an axis (for example, a columnar shape, etc.), and each axis of the water retaining part and the planting part is parallel to the axis of the base and the water retaining part and the planting. The water retention part and the planting part are arranged side by side so that both parts have openings on the upper surface of the substrate.

  In this case, the planting part or the water retention part may have an opening on the lower surface of the base. According to this, the opening of this lower surface can function as a drain hole.

  Moreover, in the ceramic medium for planting according to the present invention, the base body has a rectangular parallelepiped or cubic shape, and the water retention part can be disposed below the planting part. Thereby, a ceramic ceramic block (tile) for planting can be provided.

  The substrate of this medium (block) can contain a large amount of moisture as described above, for example, because the entire substrate is made of porous ceramic. Moreover, since a plant (for example, lawn, moss, etc.) grows from the opening of the planting part on the upper surface of the medium (block), a part of the upper surface of the medium (block) can be covered with the plant. Therefore, the cooling property of the upper surface of the culture medium (block) is high. Therefore, for example, by embedding and laying a large number of this culture medium (block) on a sidewalk or the like, it can be used for greening of the sidewalk or the like and for suppressing temperature rise of the sidewalk or the like. In addition, this culture medium (block) is optimal for greening buildings and the like by, for example, burying and laying a large number on the walls of buildings and the like.

  In this case, it is preferable that a protrusion whose tip is positioned above the opening of the planting part is formed on the upper surface of the culture medium (block). Here, it is preferable that a plurality of the planting parts are provided and a plurality of the protrusions are formed. According to this, for example, when the medium (block) is used for a sidewalk or the like as described above, the formation of the protrusions suppresses damage to the plant caused by the pedestrian's stepping, and the pedestrian's foot. The effect and effect that it becomes difficult to slip can be exhibited.

  The substrate of the ceramic medium for planting according to the present invention has a fertilizer portion inside which is a space in which a substance containing fertilizer of the plant (such as soil containing fertilizer) is accommodated, and at least the substrate in the substrate It is preferable that a portion between the fertilizer portion and the planting portion is configured to be porous.

  According to this, only by arranging the fertilizer part and the planting part apart by a predetermined distance, without giving any special device, through a large number of micropores contained in the porous ceramic separating the two, Fertilizer (specifically, nutrients of liquid dissolved from the fertilizer, etc.) can be stably supplied from the fertilizer section to the planting section. As a result, the addition of fertilizer can be made maintenance-free. Therefore, this medium is optimal for cultivation of foliage plants.

  Further, the inside of the substrate of the ceramic medium is partitioned into a plurality of spaces having openings on the upper surface of the substrate by porous partition walls, and at least a part of the plurality of spaces is used as the planting part. It is preferable to do so. The other part of the plurality of spaces may be used as the water retention unit and the fertilizer unit. The partition walls may be formed in a lattice shape. The partition wall preferably has a porosity of 30 to 80%. In addition, it is preferable that the partition wall has a thickness of 0.1 mm to 10.0 mm.

  According to this, by adjusting the thickness of the partition wall, the volume of the water retention part and the fertilizer part, etc., the supply rate and amount of water from the water retention part to the planting part (and hence the plant) (in addition, the fertilizer part is formed) When being done, the feed rate and amount of nutrients from the fertilizer part to the planting part (and hence the plant) can be adjusted easily and accurately. Therefore, it becomes easy to manage the growth state of the plant.

  Moreover, in the ceramic culture medium for planting according to the present invention, when the entire substrate is made of porous ceramic, the surface of the substrate except for the upper surface is covered with a water-impermeable member. It is preferable. According to this, for example, when the culture medium is embedded in the land so that the upper surface of the substrate is exposed from the ground, harmful components contained in the ground (for example, salinity, etc.) are introduced from the outside of the substrate into the substrate. Intrusion can be suppressed. Therefore, for example, it is possible to suppress the plant (agricultural crops) from being damaged by salt. As the water-impermeable member, ceramic, glass or the like is suitable in consideration of durability.

  Moreover, the support | pillar extended below may be provided in the bottom face of the said base | substrate of the said ceramic culture medium. According to this, for example, when the culture medium is embedded in the land and used, the culture medium can be fixed to the land by inserting the strut into the land. Therefore, in particular, it is possible to stabilize the installation state of the medium on the soft ground.

  In the ceramic culture medium according to the present invention, a passage for introducing water from the outside into the water retaining portion may be formed in the base. According to this, since the water content in the water retention part can be remotely controlled, it can be said that this medium is suitable for, for example, large-scale agriculture.

  In addition, it is possible to increase the proportion of the supplied water that can be actually supplied to the plant, compared to the case of watering from the ground surface. Furthermore, the amount of water released into the ground can be reduced as compared with the case of watering from the ground surface. As a result, suppression of salt damage can be expected.

  Furthermore, the “ceramic medium set” can be provided by connecting the plurality of ceramic culture media with a connecting member. Thereby, in particular, the installation state of the “ceramic medium set” on the soft ground can be stabilized.

  Hereinafter, a ceramic medium (ceramic block) according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an appearance of a ceramic medium 10 according to the first embodiment of the present invention, and FIG. 2 is a cross section obtained by cutting the ceramic medium 10 along line 2-2 shown in FIG. FIG. The ceramic medium 10 includes a porous ceramic columnar substrate. This substrate is a fired body of a porous ceramic as a whole. The formation and firing of the substrate can be performed using one of known methods.

  A planting part 11, a water retaining part 12, and a fertilizer part 13, which are cylindrical spaces having an opening on the upper surface, are formed inside the base body. The planting part 11, the water retention part 12, and the fertilizer part 13 are separated from each other by a predetermined distance so that each axis is parallel to the axis of the substrate and the water retention part 12 and the fertilizer part 13 sandwich the planting part 11. Are arranged side by side.

  The planting part 11 accommodates soil 21A, and a plant (or crop) 21B is planted on the soil 21A. The plant 21B grows upward from the opening of the planting part 11 (therefore, the upper surface of the substrate).

  For example, a water-absorbing polymer 22 is accommodated in the water retention unit 12 as a water retention material. Various known polymers can be used as the water-absorbing polymer 22 without any particular limitation. The water-absorbing polymer 22 contains a sufficient amount of moisture.

  The fertilizer part 13 accommodates a substance 23 (for example, soil (fertilizer) containing fertilizer) containing the fertilizer (including minerals) of the plant 21B.

  In the ceramic medium 10 according to the first embodiment configured as described above, the substrate is made of porous ceramic. Therefore, moisture can easily move from the water retaining part 12 to the planting part 11 through a large number of micropores contained in the porous ceramic separating the planting part 11 and the water retaining part 12 (white in FIG. 2). See arrow). Therefore, it is possible to stably supply moisture from the water retention unit 12 to the planting unit 11 without performing special measures. In addition, moisture can be stably taken in from the outside of the substrate to the inside of the substrate (accordingly, the water retention unit 12 or the planting unit 11) through a large number of micropores formed on the surface of the substrate.

  As mentioned above, the ceramic culture medium 10 is excellent in the supply stability of the water | moisture content to the planting part 11. FIG. Therefore, when this ceramic culture medium 10 is embedded in land and used, it is particularly suitable for cultivation of plants (agricultural crops) in dry land. In addition, by embedding and spreading a large number of the ceramic culture medium 10 on land, walls of buildings, etc., they can be used for greening banks, deserts, buildings, and the like.

  In addition, in this ceramic medium 10, liquid fertilizer (nutrient) dissolved from the material 23 of the fertilizer part 13 through a large number of micropores contained in the porous ceramic separating the fertilizer part 13 and the planting part 11. Or the element can easily move from the fertilizer part 13 to the planting part 11 (see the black arrow in FIG. 2). Therefore, a nutrient can be stably supplied from the fertilizer part 13 to the planting part 11 without giving a special device. As a result, the addition of fertilizer to the planting part can be made maintenance-free (or easy to maintain). Therefore, this ceramic medium 10 is optimal for cultivation of houseplants.

  Various modifications can be adopted as modifications of the ceramic medium 10 according to the first embodiment. For example, the plant 21B may be a seed. Further, depending on the characteristics of the plant 21B, the soil 21A may not be present. Moreover, the planting part 11, the water retention part 12, and the fertilizer part 13 may be plural. Furthermore, the fertilizer part 13 may not be present.

  Moreover, a lid member that covers the upper surface of the substrate may be provided. Thereby, evaporation of moisture from the upper surface of the substrate can be suppressed. As a material of the lid member, for example, ceramic, resin, glass, rubber, fiber, cork, or the like can be used. Among these, rubber, fiber, and cork that can be flexibly deformed according to the growth of the plant are preferable. Furthermore, the planting part 11 or the water retention part 12 may have an opening on the lower surface of the substrate (that is, a space through which the planting part 11 or the water retention part 12 penetrates in the vertical direction). According to this, the opening of this lower surface can function as a drain hole.

  Also, as shown in FIGS. 3 and 4 corresponding to FIGS. 1 and 2, respectively, a porous ceramic columnar base is coaxially formed between the columnar upper base 10A and the upper base 10A. It may be constituted by a cylindrical lower base body 10B joined together. In the following figures, the same or equivalent symbols as those shown in the previous figures are given the same reference numerals as those in the previous figures.

  In this example, one planting portion 11 and two fertilizer portions 13 are formed in the upper base body 10A so as to have an opening on the upper surface, and one short columnar shape is formed in the lower base body 10B. The water retaining portion 12 is formed so as to be covered and sealed with the lower surface of the upper base body 10A. Also in this example, the entire upper substrate 10A and lower substrate 10B are porous ceramic fired bodies.

  In this base, for example, the water-absorbing polymer 22 is accommodated in the water retention part 12 (having an opening on the upper surface) of the lower base 10B that has been baked, and then the upper base 10A that has been baked is placed on the predetermined body. It is completed by coaxial bonding using an adhesive.

  In addition, as shown in FIG. 5, an introduction hole 14 that communicates the outside with the water retaining portion 12 may be provided in the upper base body 10 </ b> A when the upper base body 10 </ b> A and the lower base body 10 </ b> B are joined. In this case, after joining the upper base body 10A and the lower base body 10B (that is, after joining the fired bodies), a substance (precursor substance) used to create a water-absorbing polymer in the water retention part 12 through the introduction hole 14 Can be stored in the water retaining portion 12.

  Further, as shown in FIG. 6, portions (specifically, side surfaces and a lower surface) excluding the upper surface of the surface of the substrate may be covered with a water-impermeable member 31. According to this, for example, when the ceramic medium 10 is embedded in the land so that the upper surface of the substrate is exposed from the ground, harmful components (for example, salt content) contained in the ground are transferred from the outside of the substrate. Intrusion into the interior can be suppressed. Therefore, for example, it is possible to suppress the plant (agricultural crop) 21B from being damaged by salt. In order to suppress moisture vaporization and improve shielding properties, a part or all of the upper surface except for the opening may be covered with the water-impermeable member 31 together with the side surface and the lower surface or independently. .

  Moreover, as shown in FIG. 7, the support | pillar 42 extended below may be provided in the bottom face of the base | substrate of each ceramic culture medium 10. As shown in FIG. According to this, for example, when each ceramic culture medium 10 is embedded in the land and used, each ceramic culture medium 10 can be fixed to the land by inserting the support 42 into the land. Therefore, in particular, the installation state of each ceramic medium 10 on the soft ground can be stabilized.

  Furthermore, as shown in FIG. 7, a plurality of (four in FIG. 7) ceramic mediums 10 may be connected to each other by a connecting member 41 to form a “ceramic medium set”. Thereby, in particular, the installation state of the “ceramic medium set” on the soft ground can be stabilized. In the case where the substrate is simply used as a “ceramic medium set”, the substrate may be provided with a connecting portion so that the substrates are directly connected to each other.

  Moreover, as shown in FIG. 8, the water retention parts 12 of the plurality of ceramic culture media 10 may be connected to each other by a water supply pipe 51 through a water supply hole 15 formed in each substrate. According to this, the water content in each water retention part 12 can be remotely controlled by adjusting the flow rate of the water flowing through the water pipe 51. Therefore, it can be said that this form is suitable for large-scale agriculture, for example. In addition, it is possible to increase the proportion of the supplied water that can be actually supplied to the plant 21 </ b> B, compared to the case of watering from the ground. Furthermore, the amount of water released into the ground can be reduced as compared with the case of watering from the ground. As a result, suppression of salt damage can be expected. In addition, in FIG. 8, although the water holding part 12 is connected with the water supply pipe 51 via the water supply hole 15, the water holding part 12 and the water supply pipe 51 may be directly connected. In addition, the introduction side water supply pipe 51 and the discharge side water supply pipe 51 may not be arranged in a straight line with respect to each base. In addition, the water supply pipe 51 is connected to the side surface of the ceramic medium 10 in FIG. 8, but may be connected to the upper surface or the lower surface of the ceramic medium 10.

  FIG. 9 is a perspective view showing an appearance of the ceramic culture medium 10 according to the second embodiment of the present invention, and FIG. 10 is a cross-sectional view obtained by cutting the ceramic culture medium 10 along the line 10-10 shown in FIG. FIG. The ceramic culture medium 10 according to the second embodiment is different from the first embodiment only in that the inside of the substrate is partitioned into a plurality of spaces by a porous ceramic lattice-like partition wall. This substrate is also a porous ceramic fired body as a whole. The formation and firing of the substrate can also be performed using one of well-known methods.

  In the second embodiment, as shown in FIG. 10, a part (a plurality of spaces) of the plurality of spaces each having an opening on the upper surface is used as the planting unit 11, and another part (a plurality of spaces) Space) is used as the water retention unit 12, and another part (a plurality of spaces) is used as the fertilizer unit 13. In this example, seeds 21 </ b> B are planted in the planting unit 11. In addition, it is suitable for the planting part 11, the water retention part 12, and the fertilizer part 13 to be arranged so that each planting part 11 is adjacent to at least one water retention part 12 and at least one fertilizer part 13. .

  In the second embodiment, the same operation and effect as the first embodiment can be obtained. In addition, by adjusting the thickness and the like of the grid-shaped partition walls, the supply rate and amount of moisture from the water retention unit 12 to the planting unit 11 (and hence the seed 21B), and the fertilizer unit 13 to the planting unit 11 ( Therefore, the supply rate and amount of nutrients to the seed 21B) can be adjusted easily and accurately. Therefore, it becomes easy to manage the growth state of the plant. For this purpose, it has been found that the partition wall porosity is preferably 30 to 80% and the partition wall thickness is preferably 0.1 mm to 10.0 mm.

  Various modified examples of the ceramic medium 10 according to the second embodiment can be adopted. For example, the seed 21B may be a plant. Further, depending on the characteristics of the seed 21B, the soil 21A may not be present. Furthermore, the fertilizer part 13 may not be present. Further, a lid member covering the upper surface of the upper base body 10A may be provided. Moreover, the planting part 11 or the water retention part 12 may have an opening in the lower surface of the base body (that is, the space where the planting part 11 or the water retention part 12 penetrates up and down may be used). According to this, the opening of this lower surface can function as a drain hole.

  Further, as shown in FIGS. 11 and 12, corresponding to FIGS. 9 and 10, respectively, a porous ceramic columnar base is coaxially formed between the cylindrical upper base 10A and the upper base 10A. It may be constituted by a cylindrical lower base body 10B joined together. This example corresponds to a modification of the first embodiment shown in FIGS. 3 and 4 described above.

  Similarly to the embodiment shown in FIG. 6 described above, the surface of the base body except the upper surface (specifically, the side surface and the lower surface) may be covered with a water-impermeable member. . Further, as in the embodiment shown in FIG. 7, a support column extending downward may be provided on the bottom surface of the base of each ceramic culture medium 10. Furthermore, similarly to the embodiment shown in FIG. 7, a plurality of (four in FIG. 7) ceramic mediums 10 may be connected to each other by a connecting member to form a “ceramic medium set”. Further, as shown in FIGS. 13 and 14 corresponding to FIGS. 9 and 10, respectively, the base body may have a rectangular parallelepiped shape instead of a columnar shape. The ceramic medium 10 according to the embodiment of the present invention has been described above.

  Next, a ceramic medium 60 (hereinafter also referred to as “ceramic block 60”) according to a third embodiment of the present invention will be described. FIG. 15 is a perspective view showing the appearance of the ceramic block 60 according to the embodiment of the present invention, and FIG. 16 is a cross-sectional view obtained by cutting the ceramic block 60 shown in FIG. .

  This ceramic block 60 has a rectangular parallelepiped shape made of a porous ceramic as a whole. The block 60 includes a rectangular parallelepiped upper base 10A and a rectangular parallelepiped lower base 10B bonded to the lower base 10A. In this example, a large number of planting portions 11 are formed in the upper base 10A so as to have a lattice shape in the top view and have openings on the upper surface, and one rectangular parallelepiped is formed in the lower base 10B. The water retaining portion 12 is formed so as to be covered and sealed with the lower surface of the upper base body 10A.

  Similar to the modification of the first embodiment shown in FIGS. 3 and 4 described above, in this example as well, the entire upper substrate 10A and lower substrate 10B are porous ceramic fired bodies.

  Furthermore, a large number of protrusions 61 are formed on the upper surface of the ceramic block 60. Each protrusion 61 is formed at a position corresponding to the center of each quadrangle having four corners as the positions of the openings of the four planting parts 11 adjacent to each other in a quadrilateral shape when viewed from above. Therefore, the many protrusions 61 are formed in a lattice shape in a top view. The position of the tip part of each protrusion 61 is located above the opening of the adjacent planting part 11.

  In the ceramic block 60 according to the embodiment configured as described above, a large amount of moisture can be contained in the block 60 as in the ceramic medium 10 according to the above-described embodiment. Moreover, since a plant (for example, lawn, moss, etc.) grows from each opening of many planting parts 11 on the upper surface of the block 60, a part of upper surface of the block 60 may be covered with a plant. Therefore, the cooling property of the upper surface of the block 60 is high.

  Accordingly, for example, by embedding a large number of blocks 60 on a sidewalk or the like, the blocks 60 can be used for greening of the sidewalk or the like and for suppressing temperature rise of the sidewalk or the like. Moreover, since many protrusions 61 are formed on the upper surface of the block 60 as in the art, damage to a plant due to a pedestrian's stepping can be suppressed. In addition, the action and effect of making it difficult for the pedestrian's foot to slip can be exhibited.

  Various modifications may be adopted as modifications of the ceramic block 60 according to the above embodiment. For example, the block 60 may be integrally molded (and fired) without being divided into the upper base body 10A and the lower base body 10B. The seed 21B may be a plant. Further, depending on the characteristics of the seed 21B, the soil 21A may not be present. Moreover, a part of the planting part 11 may be replaced with the fertilizer part 13. In this case, the planting unit 11 and the fertilizer unit 13 are preferably arranged so that each planting unit 11 is adjacent to at least one fertilizer unit 13.

  Similarly to the above-described embodiment shown in FIG. 6, even if the surface of the ceramic block 60 excluding the upper surface (specifically, the side surface and the lower surface) is covered with a water-impermeable member. Good. Moreover, the support | pillar extended below may be provided in the surface of the block 60 similarly to the form shown in FIG.

  Further, as shown in FIGS. 17 and 18 corresponding to FIGS. 15 and 16, in the ceramic block 60, the protrusion 61 on the upper surface of the block 60 is omitted, and the upper surface is formed flat. Good. For example, a large number of blocks (tiles) 60 are embedded in a wall or the like of a building, and are optimal for greening of the building or the like.

  Further, as described above, when a large number of the ceramic blocks 60 are embedded in a sidewalk or the like and spread, the water retaining portions 12 of the ceramic blocks 60 are provided with the water supply holes 15 formed in each block 60 as shown in FIG. May be connected to each other. According to this, since the flow rate of the water supplied into each water holding part 12 can be adjusted like the form shown in FIG. 8 mentioned above, the water content in each water holding part 12 can be remotely controlled.

  As described above, in the embodiment of the ceramic medium and the ceramic block according to the present invention described above, for example, alumina or silica can be used as the material of the porous ceramic. The porous porosity is 80 to 30%, preferably 70 to 50%. In the various embodiments described above, the entire ceramic substrate is porous. However, at least a portion between the water retention unit 12 and the planting unit 11 in the substrate may be configured to be porous. Moreover, when the fertilizer part 13 is provided in the base | substrate, the part between the fertilizer part 13 and the planting part 11 should just be comprised with the porous.

  In addition, as the water-absorbing polymer, a polymer compound such as sodium polyacrylate can be used. Naturally derived starch-based or cellulose-based materials may be used. The water-absorbing polymer can be used in the form of a sheet made of a mixture of various binders and powders or particles of these water-absorbing polymers, or in the form of a fiber-impregnated water-absorbing polymer or a matrix. A dispersion, a sheet of such a fiber, a mixture of another resin and a water-absorbing polymer, and a coating film may be used.

It is the perspective view which showed the external appearance of the ceramic culture medium which concerns on 1st Embodiment of this invention. It is sectional drawing obtained by cut | disconnecting the ceramic culture medium shown in FIG. It is the perspective view which showed the external appearance of the ceramic culture medium which concerns on the modification of 1st Embodiment of this invention. It is sectional drawing obtained by cut | disconnecting the ceramic culture medium shown in FIG. 3 by 4-4 lines. It is sectional drawing of the ceramic culture medium which concerns on the other modification of 1st Embodiment of this invention. It is sectional drawing of the ceramic culture medium which concerns on the other modification of 1st Embodiment of this invention. It is sectional drawing of the ceramic culture medium which concerns on the other modification of 1st Embodiment of this invention. It is sectional drawing of the ceramic culture medium which concerns on the other modification of 1st Embodiment of this invention. It is the perspective view which showed the external appearance of the ceramic culture medium which concerns on 2nd Embodiment of this invention. FIG. 10 is a cross-sectional view obtained by cutting the ceramic medium shown in FIG. 9 along line 10-10. It is the perspective view which showed the external appearance of the ceramic culture medium which concerns on the modification of 2nd Embodiment of this invention. FIG. 12 is a cross-sectional view obtained by cutting the ceramic medium shown in FIG. 11 along line 12-12. It is the perspective view which showed the external appearance of the ceramic culture medium which concerns on the other modification of 2nd Embodiment of this invention. It is sectional drawing obtained by cut | disconnecting the ceramic culture medium shown in FIG. 13 by 14-14 line | wire. It is the perspective view which showed the external appearance of the ceramic culture medium (ceramic block) which concerns on 3rd Embodiment of this invention. It is principal sectional drawing of the ceramic block shown in FIG. It is the perspective view which showed the external appearance of the ceramic culture medium (ceramic block) which concerns on the modification of 3rd Embodiment of this invention. It is principal sectional drawing of the ceramic block shown in FIG. It is sectional drawing of the ceramic culture medium (ceramic block) which concerns on the other modification of 3rd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Ceramic culture medium, 10A ... Upper base | substrate, 10B ... Lower base | substrate, 11 ... Planting part, 12 ... Water retention part, 13 ... Fertilizer part, 21A ... Soil, 21B ... Plant (seed), 22 ... Water-absorbing polymer, 23 ... Material containing fertilizer, 60 ... ceramic block, 61 ... projection

Claims (15)

A ceramic medium for planting having a ceramic substrate,
The base body has a water retention portion that is a space in which a water retention material is accommodated, and a planting portion that is a space in which plants or seeds are disposed and has an opening on the upper surface of the base body, A ceramic medium for planting in which at least a portion between the water retention unit and the planting unit in the substrate is configured to be porous. In the ceramic medium for planting of Claim 1,
The base body has a shape having an axis perpendicular to the upper surface, and the water retention part and the planting part each have a shape having an axis,
The water retention part and the water retention part and the planting part so that the respective axes of the water retention part and the planting part are parallel to the axis of the base and the water retention part and the planting part both have an opening on the upper surface of the base. A ceramic medium for planting in which the planting parts are arranged side by side. In the ceramic medium for planting of Claim 1,
The base has a rectangular parallelepiped or cubic shape;
A ceramic medium for planting in which the water retaining part is disposed below the planting part. In the ceramic culture medium for planting of Claim 3,
A ceramic medium for planting, wherein a protrusion having a tip positioned above the opening of the planting part is formed on the upper surface of the substrate. In the ceramic medium for planting as described in any one of Claims 1 thru | or 4,
The base has therein a fertilizer portion that is a space in which a substance containing the plant fertilizer is contained, and at least a portion of the base between the fertilizer portion and the planting portion is configured to be porous. Ceramic medium for planting. In the ceramic medium for planting as described in any one of Claims 1 thru | or 5,
A ceramic medium for planting, wherein the substrate has a plurality of planting parts. In the ceramic medium for planting as described in any one of Claims 1 thru | or 6,
The planting ceramic in which the inside of the substrate is partitioned into a plurality of spaces having openings on the upper surface of the substrate by porous partition walls, and at least a part of the plurality of spaces is used as the planting part Culture medium. In the ceramic medium for planting of Claim 7,
A ceramic medium for planting in which the partition walls are formed in a lattice shape. In the ceramic medium for planting of Claim 7 or Claim 8,
A ceramic medium for planting, wherein the partition wall has a porosity of 30 to 80%. In the ceramic culture medium for planting as described in any one of Claims 7 thru | or 9,
A ceramic medium for planting, wherein the partition wall has a thickness of 0.1 mm to 10.0 mm. In the ceramic culture medium for planting as described in any one of Claims 1 thru | or 10,
A planting ceramic medium, wherein the entire substrate is made of porous ceramic. In the ceramic medium for planting of Claim 11,
A ceramic medium for planting, wherein the surface of the substrate except the upper surface is covered with a water-impermeable member. In the ceramic culture medium for planting as described in any one of Claims 1 thru | or 12,
A ceramic medium for planting provided with a support column extending downward on the bottom surface of the substrate. In the ceramic culture medium for planting as described in any one of Claims 1 thru | or 13,
A ceramic medium for planting, wherein a passage for introducing water from the outside into the water retaining portion is formed in the base.   The set of the ceramic culture medium for planting obtained by the some ceramic culture medium as described in any one of Claims 1 thru | or 14 being mutually connected with a connection member.

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