JP2018113887A - Water plant planting bed soil and production method of same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water plant planting bed soil that can encourage the roots of water plants to grow so as to intertwine with soil particles and that can ensure stable growth after planting.SOLUTION: A water plant planting bed soil A is provided with soil blocks 20 molded from soil 21 impregnated with a thickener solution and a gelling agent solution, and water plants 10 which are planted in the soil blocks 20.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an aquatic planting floor soil and a method for producing an aquatic planting floor soil.

  In the aquarium for aquaculture where aquatic organisms such as fish are bred, aquatic plants are planted to reproduce a more natural environment.

  Such aquatic plants are generally planted one by one using tweezers or the like, for example, by a manager of the aquarium at a desired position on the floor soil spread on the bottom of the aquarium.

  However, since this planting operation is very complicated, a planting base for planting aquatic plants at a desired position more easily has been proposed in recent years (see, for example, Patent Document 1).

  In this planting base, soil grains formed by collecting several grains of sand and formed into granules having a diameter of about 5 mm to 10 mm are contained in a dispersed state in the gel. Gradually, it becomes a fixed state.

  Therefore, the manager of the aquarium does not need to perform complicated planting work, and can easily prepare the environment inside the aquarium in which aquatic plants are planted by simply placing it at a desired position in the aquarium.

JP 2008-043246 A

  However, with conventional planting bases, aquatic plants could not be firmly rooted and settled until after the gel collapsed.

  This is a conventional planting base that is gelled by dispersing powdered magnesium oxide, which is a solidifying agent, in a thickener, and the gel part has a uniform hardness as a whole. This is because the roots of growing aquatic plants are dispersed sparsely and are not easily entangled with the soil grains.

  Therefore, the roots cannot be sufficiently entangled with the soil grains before the gel collapses, and it is after the gel collapse that they grow while entangled with the soil grains.

  Therefore, until the roots are sufficiently entangled with the soil grains after the gel collapses, it is a time when the placed aquatic plants are unstable in both posture and nutrition, and stable growth after planting can be secured. It was hard to say.

  On the other hand, if the roots can be entangled in the soil grains mixed in the planting base before the gel collapse, it is considered that the fixing rate of aquatic plants after the gel collapse is further improved.

  The present invention has been made in view of such circumstances, and provides an aquatic planting floor soil capable of promoting the growth of aquatic plants so that the roots of the aquatic plants are entangled with soil grains and ensuring stable growth after planting. .

  In order to solve the above-described conventional problems, in the aquatic planting floor soil according to the present invention, (1) a soil lump comprising a molded body of a soil impregnated with a thickener solution and a gelling agent solution, and the soil lump And aquatic plants with roots planted.

Moreover, the aquatic planting floor soil which concerns on this invention has the characteristics also in the following points.
(2) The soil contains granular fired soil that functions as planting soil mainly composed of volcanic ash soil as soil grains.
(3) The soil includes agglomerated particles of shirasu balloons obtained by firing volcanic ash as planting soil as soil particles, and gives a certain wettability to the agglomerated particles of the shirasu balloons to retain the soil lump. Configured as possible.
(4) The thickener solution contains 0.003 to 0.03 parts by weight of sodium alginate and / or potassium alginate with respect to 1 part by weight of water.
(5) The gelling agent solution contains 0.001 to 0.03 parts by weight of calcium salt and / or magnesium salt with respect to 1 part by weight of water.

  Moreover, in the aquatic planting floor soil which concerns on this invention, (6) The aggregate molded object of the granule body comprised by a soil layer and the gel layer which envelops while gradually softening outward centering on the soil grain A soil lump in which the gel layer of the granule constituting the inside of the aggregated molded body is softer than the gel layer of the granule constituting the vicinity of the outside of the aggregate, and the soil lump And aquatic plants planted in.

  Moreover, in the manufacturing method of the aquatic planting floor soil which concerns on this invention, (7) The soil and the thickener liquid are mixed in a case, In the soil which produced | generated fixed viscosity with the said thickener liquid The root part of aquatic plants was planted, and then the shape retention treatment was performed by immersing the soil or the case in the case together with the gelling agent solution.

  Moreover, the manufacturing method of the aquatic planting floor soil which concerns on this invention has the characteristics in (8) The said soil contains the aggregate particle | grains of the shirasu balloon which baked volcanic ash as a soil particle.

  According to the aquatic planting floor soil according to the present invention, a soil lump comprising a molded body of a soil impregnated with a thickener solution and a gelling agent solution, and aquatic plants having roots planted in the soil lump. Since it was prepared, it can promote that the roots of aquatic plants grow so as to be entangled with the soil grains, and can ensure stable growth after planting.

  In addition, since the arrangement of aquatic plants becomes easy, the time and effort of planting the floor soil at the bottom of the aquarium can be reduced, and after the arrangement, the gel self-collapses with the passage of time, and the soil lump soil becomes the bottom of the aquarium. By integrating with the floor soil, the roots of the aquatic plants can be firmly rooted in the floor soil at the bottom of the aquarium, so that the aquatic plants can be fixed well.

  Moreover, if the said soil contains the granular baking soil which functions as planting soil which has volcanic ash soil as a main component as a soil grain, the bivalent metal ion (cation) derived from volcanic ash soil will be a soil grain. The gel layer can be rapidly formed on the outer periphery of the soil grain by reacting with the thickener solution present on the outer periphery of the slurry.

  The soil contains agglomerated particles of shirasu balloons baked with volcanic ash as planting soil, and the soil lump can be shaped by imparting a certain wettability to the agglomerated particles of the shirasu balloons. The divalent metal ions derived from the shirasu balloon react with the thickener liquid impregnated in the soil particles or present on the outer periphery thereof, and a gel layer is rapidly formed on the outer periphery of the soil particles. In addition, when the aquatic plants are inserted into the soil block, the fine hollow sphere-shaped shirasu balloon can protect the roots of the aquatic plants and prevent the surface of the roots from being damaged.

  In addition, if the thickener liquid contains 0.003 to 0.03 parts by weight of sodium alginate and / or potassium alginate with respect to 1 part by weight of water, it imparts a certain wettability and consistency to the soil. However, the surface of the soil lump has a gel layer with a gel layer that has a hardness high enough to maintain the planting state of the aquatic plants, and the inside of the soil lump has a hardness that does not hinder the growth of the roots of the aquatic plants. be able to.

  Further, if the gelling agent solution contains 0.001 to 0.03 parts by weight of calcium salt and / or magnesium salt with respect to 1 part by weight of water, the vicinity of the soil lump surface maintains the aquatic planting state. Therefore, the soil mass can be surely imparted to the soil mass a hardness distribution which is a hardness that does not hinder the growth of aquatic roots.

  In addition, according to the aquatic planting floor soil according to the present invention, the aggregated molded body of a granule composed of soil grains and a gel layer that gradually encapsulates the soil grains while gradually softening outward. A soil lump that is softer than the gel layer of the granule that forms the inside of the aggregate, and the same Therefore, it is possible to provide the aquatic planting floor soil that can promote the growth of the roots of the aquatic plants so as to be entangled with the soil grains, and can ensure stable growth after the planting.

  Further, according to the method for producing aquatic planting floor soil according to the present invention, a soil and a thickener liquid are mixed in a case, and water is added to the soil in which a certain consistency is generated by the thickener liquid. Planting the root of the grass, and then deciding the soil in the case or the case together with the gelling agent solution to maintain the shape, so that the roots of the aquatic plants can grow and become entangled with the soil grains. The aquatic planting floor soil which can ensure the stable growth in can be manufactured.

  In addition, if the soil contains aggregated particles of shirasu balloons obtained by firing volcanic ash as soil particles, the roots of the aquatic plants are protected by the soil particles while protecting the roots of the aquatic plants with fine hollow sphere-shaped shirasu balloons. It is possible to produce an aquatic planting floor soil that can grow while being sufficiently entangled and can ensure stable growth after planting.

It is explanatory drawing which shows the usage example of the aquatic planting floor soil which concerns on this embodiment. It is explanatory drawing which showed the external appearance of the aquatic planting floor soil which concerns on this embodiment. It is sectional drawing which shows the structure of the aquatic planting floor soil which concerns on this embodiment. It is explanatory drawing which shows the expansion | extension state of the root of aquatic plants in the soil lump of the aquatic planting floor soil which concerns on this embodiment. It is explanatory drawing which shows the expansion | extension state of the root of the aquatic plant in the soil grain vicinity of the aquatic planting floor soil which concerns on this embodiment. It is explanatory drawing which shows the flow of the manufacturing method of the aquatic planting floor soil which concerns on this embodiment. It is explanatory drawing which shows manufacture of the aquatic planting floor soil which concerns on this embodiment.

  The present invention provides an aquatic planting floor soil that can encourage the roots of aquatic plants to grow so as to be entangled with soil grains and can ensure stable growth after planting.

  In particular, in the aquatic planting floor soil according to the present embodiment, a soil lump formed of a molded body of a soil impregnated with a thickener solution and a gelling agent solution, and aquatic plants having roots planted in the soil lump. It is characterized by the provision.

  Hereinafter, a specific configuration of the aquatic planting floor soil A according to the present embodiment will be described with reference to FIGS.

  First, the external appearance of the aquatic planting floor soil A is shown in FIG. 2, and the cross-sectional structure of the aquatic planting floor soil A is shown in FIG. As shown in FIG. 2, the aquatic planting floor soil A according to the present embodiment is composed of aquatic plants 10 and a soil block 20 formed in a substantially rectangular parallelepiped shape disposed in the vicinity of the root of the aquatic plants 10.

  FIG. 3A shows a cross section taken along the line a-a ′ of FIG. 2. As shown in FIG. 3A, the aquatic plants 10 are planted in the soil lump 20.

  The soil lump 20 is composed of soil grains 22 and a gel part 50. Further, the main root 12 a and the side root 12 b constituting the root portion 12 of the aquatic plant 10 are intricately stretched around the gel grain 50 and on the soil grain 22.

  The soil grain 22 is a base material (aggregate) of the soil lump 20. In the following description, a structure in which a large number of soil grains 22 are aggregated as in the relationship between sand grains and sand is referred to as a soil 21.

  Although the soil grain 22 is not particularly limited, the grain diameter can be about 1 mm to 5 mm.

  The soil grains 22 are, for example, those obtained by firing and granulating raw earth mixed with red and black clay at about 100 ° C. to 500 ° C., more preferably about 300 ° C. to 400 ° C. (hereinafter referred to as raw earth sintered soil grains). ).

  Raw earth calcined soil grains are compounds that elute divalent cations such as magnesium oxide, calcium oxide, calcium chloride in addition to plant essential elements such as carbon, nitrogen, sulfur, phosphorus, potassium, and iron Is included. Therefore, as will be described in detail later, when the raw earth fired soil grains are used as the soil grains 22, these compounds contained in the raw earth fired soil grains serve to make the thickener semi-solidified. .

  Moreover, the soil grain 22 is a granular calcined soil (hereinafter referred to as a calcined volcanic ash soil grain) that functions as planting soil mainly composed of volcanic ash soil, or an aggregate grain of shirasu balloons that are calcined volcanic ash as planting soil ( Hereinafter, it is referred to as “shirasu balloon soil particles”.

  The calcined volcanic ash soil grains are obtained by mixing volcanic ash, black clay, and red clay and calcining at about 100 ° C. to 500 ° C., and basically contain the same compounds as the raw earth calcined soil grains. In particular, by containing a large amount of a divalent cation compound derived from a volcanic ash component, the role of making the above-mentioned thickener semi-solidified can be made more solid.

  Shirasu balloon soil grains are aggregates of shirasu balloons formed to a particle size of about 1 mm to 5 mm.

  A shirasu balloon is produced by heating a shirasu at a high temperature and foaming. The shirasu balloon is a fine hollow sphere having a particle size of about 2 μm to several hundreds of μm and is powdery to the naked eye. In addition, the shirasu balloon includes those that are ruptured or cracked due to explosive expansion due to rapid heating in the foam generation process.

  Shirasu balloon soil particles, which are porous granules, are formed by granulating the Shirasu balloon powder into granules having a particle size of about 1 mm to 5 mm and making such large Shirasu balloons.

  Accordingly, the shirasu balloon soil particles are porous due to both the hollow internal space of the shirasu balloon itself and the space formed between the shirasu balloons. For this reason, a constant wettability can be imparted to the shirasu balloon soil particles by impregnating a small amount of water or water contained in a thickener liquid or gelling liquid described later through the above-described many holes. it can.

  Moreover, the composition of a general shirasu balloon contains silicon dioxide as a main component and a compound that elutes a divalent cation such as aluminum oxide, iron oxide, calcium oxide or the like as the other component. Therefore, similar to the raw earth fired soil, the shirasu balloon soil particles also have a role to make the thickener semi-solidified.

  In addition, as another example of shirasu balloon soil particles, sand or black soil may be partially mixed. In this case, the sand can be formed into agglomerated particles by chemical treatment with, for example, an iron-based, aluminum-based or polymer-based flocculant, or by sintering and mixing with a shirasu balloon. It is desirable to use soil collected from the mountains for black soil.

  In addition, the soil 21 may be configured by using the above-described raw earth fired soil grains, fired volcanic ash soil grains, and shirasu balloon soil grains alone as the soil grains 22, and these may be appropriately mixed, Alternatively, the grains 22 may be configured as the soil grains 22. Moreover, it is also possible to comprise the soil 21 by adding shirasu balloon grains to a soil for planting used for normal plant cultivation so that the content is 40 to 70% by weight.

  Returning to the description of FIG. 3, the gel part 50 has a role of retaining the soil grain 22 while retaining the soil lump 20 itself, and is a part where the thickener liquid has changed into a solidified or semi-solidified state. .

  It can be said that the gel part 50 is one of the characteristic structures of the aquatic planting floor soil A according to the present embodiment. That is, as shown by the shaded shades in FIG. 3B, the gel part 50 gradually softens from the outer surface to the inside of the soil lump 20 (hereinafter also referred to as a gel part hardness gradient structure). It has.

  This gel part hardness gradient structure is formed by impregnating the gelling agent liquid from the outside into a semi-solidified state in which the thickener liquid and the soil 21 are mixed and made into a semi-solidified state capable of retaining the shape. Yes.

  Thereby, in the soil lump 20, according to the concentration distribution of the gelling agent solution that has penetrated from the outside, from the vicinity of the outer surface of the soil lump 20 to the center of the deep part, the high hardness gel part, the medium hardness gel part, and the low hardness gel A gel part 50 having a gel part hardness gradient structure with a continuous hardness gradient of approximately three stages is formed.

  And by providing such a gel part hardness gradient structure, the high hardness gel part of the outer surface vicinity area of the soil lump 20 supports the aquatic plants 10 punctured upright, and the aquatic plants 10 are unexpectedly separated from the soil lump 20. It can be made to function as the aquatic plant fixing area | region 51 which prevents that it remove | deviates.

  On the other hand, the medium-hardness gel part and the low-hardness gel part located inside the soil lump 20 have lower hardness than the high-hardness gel part, so that the stress due to the difference in growth environment has just been planted in the soil lump 20. For the aquatic plants 10 in an increased state, the rooting rate of the aquatic plants 10 can be improved, or the aquatic plants 10 can function as a root growing region 52 that provides a growth environment that promotes the growth of roots from the roots 12 of the aquatic plants 10. . If it adds, a medium hardness gel part and a low hardness gel part can be made into the area | region where the density of a root is high, and can raise the contact opportunity with the soil grain 22 and can be intertwined firmly.

  By the way, paying attention to the concept of the hardness gradient of such a gel, even in the relationship between each soil grain 22 and the gel part 50 existing around it, a further micro hardness gradient structure (hereinafter referred to as a soil grain hardness gradient structure). .) This soil grain hardness gradient structure is a further characteristic structure in the aquatic planting floor soil A according to the present embodiment.

  FIG. 4 is an explanatory diagram schematically showing the state of the soil grains 22 existing in the vicinity of the root portion 12. In FIG. 4, each soil grain 22 exists in a state where it is held in a gel portion 50 shown in white, and the above-described soil grain hardness gradient structure is a gel shown in white from the surface of the soil grain 22. It is shown by shading that gradually fades over the portion 50. It is to be noted that it is as if a single frog egg was formed by the soil grains 22 and the gel portion 50 existing around the soil grains 22 and the range covered by the soil grain hardness gradient structure (hereinafter referred to as the gel layer 53). This grain is referred to as a granule 32.

  The granular body 32 is the soil grain 22 encapsulated in the gel layer 53. The gel layer 53 provided in the granule 32 is a divalent cation eluted from the outer surface of the soil grain 22 when the soil 21 and the thickener liquid are mixed in the production of the aquatic planting floor soil A. Is diffused in the thickener solution 30 present in the surroundings and gelled with a hardness according to the concentration distribution, and the hardness gradually softens outwards around the soil grains 22. To do.

  More specifically, a medium hardness gel layer 53a having a medium hardness is provided in the vicinity of the outer surface of the soil grain 22, and the outer side of the medium hardness gel layer 53a is softer than the medium hardness gel layer 53a. The low hardness gel layer 53b is continuously formed according to the concentration gradient of the divalent cation centering on the soil grain 22. Of course, this soil grain hardness gradient structure is also formed in the above-mentioned raw earth fired soil grains, fired volcanic ash soil grains, and shirasu balloon soil grains.

  In particular, the granule body 32 formed when the shirasu balloon soil grain 22a is used as the soil grain 22 has a shirasu balloon soil inside the shirasu balloon soil grain 22a as shown by the shaded shades in FIG. 5 (b). The gelling agent liquid 40 is gradually filled inward with decreasing hardness toward the inside of the gel of the thickener liquid existing in the porous gap space of the grains 22a.

  Accordingly, a gap space gel layer is formed which gradually becomes softer from the outer surface of the soil grain 22 toward the center within the shirasu balloon soil grain 22a.

  Further, the shirasu balloon soil particle 22a has a gel-filled shirasu balloon 23 provided with a filling gel layer inside through crack portions scattered inside the soil particle.

  Thus, the gel of the soil lump 20 of the aquatic planting floor soil A according to the present embodiment forms an overall and local multi-stage hardness difference. That is, the gel of the soil lump 20 has a gel hardness gradient structure in which the gel part 50 gradually softens inward from the outer surface of the soil lump 20 when the entire soil lump 20 is focused. Focusing on the granule body 32, the gel layer 53 has a gel layer hardness gradient structure that gradually softens from the outer surface of the soil grain 22 outward.

  In other words, the soil lump 20 is an aggregate molded body of a granule body 32 composed of a soil grain 22 and a gel layer 53 that gradually encapsulates the soil grain 22 while being softened outwardly. It can be said that the gel layer 53 of the granule 32 constituting the inner side of the aggregated body is made softer than the gel layer 53 of the granule 32 constituting the vicinity of the outside of the aggregate.

  And by setting it as such a structure, the shape of the gel of the soil lump 20 is extended in the high hardness gel part of the surface vicinity of the soil lump 20, and the aquatic plant 10 punctured upright is firmly supported. It can prevent that it removes from the soil lump 20 unexpectedly. On the other hand, the elongation of the roots of the aquatic plants 10 is promoted by the medium hardness gel portion and the low hardness gel portion on the inner side of the soil lump 20, and the low hardness gel layer and the medium hardness gel layer of the granule 32, so It is possible to form an aquatic planting floor soil A with a high root density by increasing the chance of contact with the soil.

  Next, the manufacturing method of the aquatic planting floor soil A which concerns on this embodiment is demonstrated, referring FIG.6 and FIG.7. FIG. 6 is a flow of the manufacturing method of the aquatic planting floor soil A, and FIG. 7A is an explanatory view showing a state in which the thickener liquid and the soil are mixed in the housing case, and FIG. ) Is an explanatory view showing a state in which the aggregate molded body is immersed in a gelling agent solution.

  In the method for producing aquatic planting floor soil according to the present embodiment, aquatic plants are planted in this soil-filled formwork, and then removed from the formwork and immersed in a gelling agent solution to perform a shape retention treatment. Manufactured by.

  First, as shown in FIG. 6, a soil-filled mold that forms a soil-filled mold in which a mixture (hereinafter referred to as “soil slurry”) in which a soil and a thickener solution are mixed is contained in a predetermined mold. A formation process (step S11) is performed.

  The thickener liquid is an aqueous solution containing a thickener as a main component. The thickener may be any one that gels (solidifies) with a divalent cation to such an extent that it can be retained as a soil lump. For example, as a thickening polysaccharide, alginate, alginate, carrageenan, pectin, etc. Any one or a mixture of two or more selected from the group consisting of:

  The thickener liquid is desirably prepared as 0.003 to 0.03 parts by weight, and preferably 0.005 to 0.02 parts by weight with respect to 1 part by weight of water.

  If the thickener is contained in an amount of 0.03 parts by weight or more with respect to 1 part by weight of water, the viscosity and hardness become too high, and the soil is formed when the thickener liquid is added to the soil. It becomes difficult for the thickener liquid to penetrate into the gaps between the soil grains, and the thickener liquid does not spread throughout the entire soil, resulting in unevenness of the soil thickener impregnation site.

  On the other hand, if the thickener is 0.003 parts by weight or less with respect to 1 part by weight of water, the consistency and hardness will be too low, making it difficult to plant aquatic plants. This is not preferable because the shape retention of the planting soil is lowered.

  Therefore, the thickener solution is prepared in 0.003 to 0.03 parts by weight, preferably 0.005 to 0.02 parts by weight with respect to 1 part by weight of water, so that good shape-retaining properties can be obtained for the aggregate molded body and the soil lump. Can be granted. Moreover, formation of the granule mentioned later can be made steady.

  Moreover, you may prepare as a bubble containing thickener liquid by stirring water and a thickener so that many bubbles may be included in a thickener liquid.

  On the other hand, the gelling agent liquid is an aqueous solution containing a gelling agent. The gelling agent may be any compound that elutes a divalent cation and can gelate (solidify) the above-described thickener (thickener liquid). For example, magnesium oxide, magnesium chloride, etc. Adopting any one or a mixture of two or more selected from the group consisting of calcium salts such as magnesium salt, calcium oxide, calcium chloride, calcium lactate, iron oxide, copper oxide, zinc oxide, strontium chloride, barium chloride Can do.

  It is preferable that the gelling agent solution contains 0.001 to 0.03 parts by weight of the gelling agent with respect to 1 part by weight of water.

  If the gelling agent is contained in 0.03 part by weight or more with respect to 1 part by weight of water, the pH of the aqueous solution is biased to strong acid or strong alkali, which not only inhibits the growth of planted aquatic plants 10 but also in the aquarium. Will worsen the environment.

  On the other hand, when the content is 0.001 part by weight or less with respect to 1 part by weight of water, not only the time required for gelation is lengthened, but also the aquatic plant fixing region 51 and the root growth region 52 are not formed in the soil lump.

  Therefore, by adding 0.001 to 0.03 parts by weight of a gelling agent, preferably 0.002 to 0.01 parts by weight of a gelling agent to 1 part by weight of water, a gelling agent solution is prepared. Thus, the aquatic plant fixing region 51 and the root growth region 52 can be formed correctly.

  As shown in FIG. 7A, the storage case 60 may be any container that can form a soil lump 20 having a height that allows roots 12 of the aquatic plants 10 to be planted. It can be appropriately selected according to the size.

  The material of the housing case 60 is not particularly limited, but a flexible material such as a resin material can be used. When a flexible material is adopted as the housing case 60, the work of removing the assembled molded body formed in the housing case 60, which will be described later, in a semi-solidified state capable of retaining the shape, from the housing case 60 becomes easy.

  Moreover, you may employ | adopt the housing | casing case 60 which has the hole of the diameter smaller than the particle size of the soil particle | grains 22 of the soil 21 accommodated, and the above-mentioned shirasu balloon which the gelling agent liquid mentioned later can flow in.

  For example, in the case of using a housing case 60 in which a plurality of holes having a diameter smaller than the particle diameter of the soil grain 22 are formed in the entire outer peripheral surface, the gel described later is not required to remove the collective molded body 31 described above. In the agent solution dipping step, the aggregate molded body together with the housing case 60 can be immersed in the gelator solution.

  Further, when the shirasu balloon soil grain 22a is used as the soil grain 22, the thickener liquid is shirasu through the gap space derived from the shirasu balloon grain and the porous form of the shirasu balloon constituting the shirasu balloon grain. It enters and fills the inside of the balloon particles and shirasu balloon.

  In this step, a soil filling mold may be formed by dispensing a previously prepared soil slurry into a predetermined mold, and the soil is accommodated in the predetermined mold, and the thickener liquid is further contained. The soil filling mold may be formed by adding to the soil and filling with the soil, and further, the thickener liquid is injected into the predetermined mold, and the soil is filled by adding the soil to the soil filling mold. A frame may be formed.

  In addition, if it dares to illustrate for the sake of understanding about the soil filling mold forming process in the present embodiment, for example, about 40 to 60 cc, more preferably about 45 to 55 cc of the soil 21 and about 20 to 40 cc, more preferably A soil slurry made of a thickening agent solution of about 25 to 35 cc can be used as a soil-filled mold disposed in a housing case 60 made of a flexible transparent plastic material having a substantially rectangular parallelepiped shape with a capacity of 100 cc.

  That is, the addition amount of the thickener liquid 30 may be such that the entire surface of the soil grain 22 constituting the soil 21 accommodated in the accommodation case 60 is covered with the thickener liquid 30.

  When the liquid surface of the thickener liquid 30 is located above the upper surface of the soil 21 in the housing case 60, the upper surface of the soil 21 (a plurality of soil grains 22 positioned at the uppermost portion) is added as necessary. Additional filling with soil 21 so that the surface) of the outermost surface and the liquid surface position of the thickener liquid 30 are substantially the same position, that is, until the liquid surface of the thickener liquid 30 is not visible. It is good to do.

  In addition, as a filling soil homogenization step, the soil particles 22 are forcibly settled in the thickener liquid 30 by pressing the soil 21 in the storage case 60 from above, and the soil particles 22 are spread all the way to the storage case 60. While spreading, the thickener liquid 30 is made to conform to the entire soil grain 22, and the distribution of the soil grains 22 in the thickener liquid 30 is made more uniform.

  By performing such a soil additional filling step and a filling soil homogenization step, the distribution of the soil grains in the soil lump 20 to be formed later is made uniform.

  In addition, it is good also as performing a soil additional filling process and a filling soil equalization process between the aquatic planting process mentioned later and the 2nd stationary process. In this embodiment, about 1 volume of the soil is added to about 1 volume of the thickener liquid, and the thickener liquid 30 is acclimated to the entire soil grain 22 through the filling soil homogenization step.

  Next, if necessary, a first standing step is performed in which the soil filling mold is left for a predetermined time (step S12). This step is a step of waiting for the divalent cation to elute from the soil grain 22 to form the granule body 32 and further to connect the granule bodies 32 to each other to form an aggregate molded body. is there.

  Although the standing time of the standing step is not particularly limited, for example, the standing time of the first standing step is about 0.1 to 15 minutes, preferably about 0.1 to 5 minutes. The standing time of the second standing step described later can be about 30 minutes to 120 minutes, preferably about 50 to 70 minutes.

  Next, an aquatic planting process for planting aquatic plants in the soil filling form is performed (step S13). In this step, when the first stationary step is performed, the aquatic plants are planted in the aggregated molded body, and when not performed, the aquatic plants are planted in the soil slurry.

  The aquatic plants 10 need only be plants that can grow in water and have roots that can extend into the floor soil. , Sagittalian, Nimfa, Apongeton, Fern, Barrisneria, Clinum, moss, etc.

  Next, the 2nd stationary process which leaves the soil filling formwork in which the water plant was planted for predetermined time is performed (step S14). This step is essential when the first standing step is not performed, but may be performed as necessary when the first standing step is already performed.

  In the second standing step, when the first standing step is not carried out, the step of waiting for the divalent cation to elute from the soil grains 22 and making the soil slurry into a semi-solidified aggregate molded body And when the 1st stationary process has already been implemented, it becomes a process for improving the shape-retaining property of an assembly molded object more.

  Next, a gelling agent liquid dipping step is performed in which the aggregated molded body 31 on which the aquatic plants 10 are planted is removed from the housing case 60 and immersed in the gelling agent solution (step S15).

  In this step, the gel part hardness gradient structure is formed in the gel part 50 by impregnating the gelling agent liquid 40 from the outside of the aggregated molded body 31.

  The addition amount of the gelling agent solution into the gelling agent solution immersion case 61 may be such that the entire outer periphery of the aggregate molded body 31 can be immersed in the gelling agent solution. That is, as shown in FIG. 7 (b), when the collective molding 31 is placed in the gelling agent immersion case 61 containing the gelling agent solution 40, collective molding is performed in the gelling agent immersion case 61. What is necessary is just to add so that the liquid level of the gelatinizer liquid 40 may become an upper position rather than the upper surface of the body 31. FIG.

  The immersion time of the aggregated molded body 31 in the gelling agent liquid 40 can be adjusted as appropriate according to the size of the soil lump 20 to be formed and the concentration of the thickener in the thickener liquid 30. The form is about 10 hours to 30 hours, more preferably about 14 hours to 26 hours.

  Here, immediately after the aggregated molded body 31 is immersed in the gelling agent solution 40, the gel part 50 is formed in the vicinity of the outer peripheral surface of the aggregated molded body 31. The gel part 50 capable of retaining the shape of the lump 20 is not formed as correctly as the inside of the soil lump 20.

  For example, when the immersion time is less than about 14 hours, the amount of gelling agent liquid impregnated inside the aggregated molded body 31 is reduced, and a central gel portion 50 corresponding to the root growth region 52 inside the soil lump 20 is formed. It becomes difficult.

  On the other hand, if it exceeds about 30 hours, the entire gel part 50 has a uniform hardness and no hardness gradient structure occurs.

  Therefore, by setting the immersion time in the gelling agent solution 40 to about 10 hours to 30 hours, more preferably about 14 hours to 26 hours, the shape retention time as the soil lump 20 can be extended, and the aquatic plant fixing region The soil lump 20 having the hardness gradient structure of the gel portion 50 such as 51 and the root growth region 52 can be formed.

  By carrying out this step in this way, in the deep part of the aggregate molded body 31, the gel part 50 between the granule bodies 32 can be prevented from being inhibited from spreading the roots of aquatic plants as a low-hardness root growth region 52, In the surface layer of the aggregate molded body 31, it is possible to firmly hold the aquatic plants as the high-hardness aquatic plant fixing area 51, and in the middle part, the soil mass 20 is formed in which the aggregate molded body 31 as a whole has a solid shape. .

  In addition, although the basic aquatic planting floor soil A is formed by steps S11 to S15 described above, the aquatic plant growing step (step S16) for growing the planted aquatic plants as necessary is performed. Anyway.

  This aquatic plant breeding process is a process of extending the roots of aquatic plants in the soil lump 20, and for example, it may be performed by leaving the aquatic planting floor soil A, as well as at the distribution stage or in the store. The display state can also be regarded as an aquatic plant growing process.

  And the aquatic planting floor soil A provided with the above-mentioned structure formed by the said method will show the following effects and effects.

  That is, in the root portion 12 of the planted aquatic plant 10, the main root 12a, the side root 12b, and the root hair 12c are the same because the gel portion 50 formed between adjacent soil grains 22 is rough and soft when viewed as a single soil mass 20. It is possible to easily extend the inside of the gel part 50, and in particular, this fact becomes remarkable in the gel part 50 existing in the root growth region 52.

  Further, when viewed with the granule body 32 alone, as shown in FIG. 5A, the main root 12a and the side root 12b of the aquatic plant 10 extend the low-hardness gel layer 53b between adjacent soil grains 22, The root hair 12c on the surface of the main root 12a and the side root 12b penetrates into the soil grain 22, and the main root 12a and the side root 12b can embrace the soil grain 22 in a more complicated manner.

  In particular, the side roots 12b and the main roots 12a are reliably engaged with the soil grains 22 by seeking the essential elements that are moisture and nutrients contained in the soil grains 22 and extending the root hairs 12c into the soil grains 22 and bending and extending them. The planting rate of the aquatic plants 10 on the soil 21 can be improved.

  Further, when a bubble-containing thickener is used, a large number of bubbles that are difficult to stay in water are scattered in the gel part 50, and the roots that stretch and grow the gel part 50 come into contact with these bubbles, thereby An opportunity to use bubble air for gas exchange accompanying growth can be given, and root development can be further promoted.

  In addition, when the shirasu balloon soil grain 22a is used as the soil grain 22, the root hair 12c enters the inner filling gel layer from the gap space of the shirasu balloon soil grain 22a, and the root hair 12c and the moisture contained in the filling gel layer Contact is made constantly and reliably.

  In addition, since the gel layer inside the shirasu balloon soil particle 22a has a lower hardness, the gel layer 53 becomes active in the diffusion growth of the root hair 12c without inhibiting the brittle growth of the root hair 12c. Then, the root hair 12c emerges from the crack portion of the grain shell of the shirasu balloon and protrudes outside to reveal a state of embedding the shirasu balloon shell.

  Then, if the roots of the aquatic plants 10 are stretched around the soil grains 22 in the root growth area 52 of the soil mass 20 and eventually expand and settle in the aquatic plant fixing area 51, the roots 12 of the aquatic plants 10 will reach the soil mass 20 accordingly. It is possible to improve the degree of fixation and promote the growth and reproduction of the aquatic plants 10.

  As described above, the soil lump 20 according to the present embodiment guides the root extending direction to the soil 21 in accordance with the root extending stage of the aquatic plant 10, that is, the direction in which the soil grains 22 are reliably entangled. The hardness gradient structure of the gel is provided globally and locally to suppress as much as possible the load on the plant body during the growth process.

  Next, an example of how to use the aquatic planting floor soil A according to this embodiment will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a state in which the aquatic planting floor soil A is about to be placed in an ornamental water tank B. FIG.

  As shown in FIG. 1, the aquatic planting floor soil A configured as described above is gripped by the human hand H with the stem 11 of the aquatic plant 10 of the aquatic planting floor soil A above the aquarium B. The soil soil 20 where the root of the aquatic plant 10 is planted is positioned at a desired position where the aquatic plants of the floor soil S are desired to be planted, or the size of the soil soil 20 is approximately the same as the soil soil 20 in the desired position of the floor soil S. It is used by placing it in a groove formed in the same size.

  And when the soil lump 20 self-collapses, the roots of the aquatic plants are stretched so as to be entangled with the soil soil S integrated with the soil grains of the soil lump, and the aquatic plants 10 are maintained in a substantially upright state. Fixing to the floor soil S is facilitated.

  That is, according to the present invention, the planting work for planting the aquatic plants 10 on the floor soil S laid down on the bottom of the water tank B is performed at a desired position on the floor soil S in the water tank B regardless of the experience or skill of the manager. The aquarium of the aquatic plant 10 that makes it possible to easily plant the aquatic plant 10 on the floor soil S of the aquarium B by placing the aquatic plant 10 planted in advance on the mass 20 together with the soil mass 20 so as to give a healing effect to the viewer. It can be said that it provides the aquatic planting floor soil A that facilitates the layout in B and can reproduce a more natural environment in the aquarium.

  As described above, according to the aquatic planting floor soil according to the present invention, it is possible to easily circulate in the regular trading market by omitting the trouble of procuring aquatic plants from the soil and growing and propagating them in the aquarium. If you plant aquatic plants in the soil in the storage case in advance through a thickener solution and a gelling agent solution so that it becomes a transaction form similar to a potted houseplant, a tank in the state of the storage case It is possible to view aquatic plants that grow and breed constantly at predetermined locations such as inside and on display cabinets.

  At the same time, with the aquatic planting floor soil stored in the storage case, it can be easily distributed in the regular transaction market and the distribution effect in the market can be improved.

  In addition, the high hardness gel part in the vicinity of the surface of the soil lump can secure the shape retention time until the gel collapse as the growth time of the root part of the aquatic plants and can maintain the appearance in the distribution state in the trading market. it can.

  In addition, even after the gel state has collapsed, the roots of the aquatic plants are firmly rooted in the soil grains, so that the roots of the aquatic plants can sufficiently support the stems and leaves. It has the effect of being able to withstand long-term distribution and viewing while maintaining a good-looking planting posture even in the distribution state.

  In addition, it is possible to reduce the amount of materials that are necessary only for transportation and display but are not necessary for planting, for example, rock wool, plastic pots, lead, etc., so that an environmentally friendly product form can be obtained.

  In particular, according to the aquatic planting floor soil according to the present invention, the root elongation direction is surely entangled with the soil grain and the root is engaged with the soil without applying a load to the plant body in accordance with the elongation stage of the aquatic plant root. By providing the hardness gradient structure of the gel that guides in the direction as a whole and locally, the root of the aquatic plant extends even before the gel collapse, so that the root of the aquatic plant can be reliably entangled in the soil.

  In addition, after planting soil is placed in the aquarium floor soil, the disintegration of microorganisms present in the aquarium environment is combined, and the gel disintegration rate is gradually accelerated because the inner side of the soil mass is a soft gel. The aquatic plant planting soil can be adapted to the soil in the aquarium so that the aquatic plants can be put into a planted state without putting an extra load on the plant body, and it also has a healing effect on the viewer. Easy layout is possible.

  Finally, the description of each embodiment described above is an example of the present invention, and the present invention is not limited to the above-described embodiment, so long as it does not depart from the technical idea of the present invention. Of course, various modifications are possible depending on the design and the like.

A aquatic planting floor soil 10 aquatic plants 20 soil lump 21 soil 22 soil grain 50 gel part

Claims (8)

  An aquatic planting floor soil comprising a soil lump comprising a molded body of a soil impregnated with a thickener liquid and a gelling agent liquid, and aquatic plants planted in the soil lump.   The aquatic planting floor soil according to claim 1, wherein the soil includes granular fired soil functioning as planting soil mainly composed of volcanic ash soil as soil grains.   The soil includes agglomerated particles of shirasu balloons obtained by firing volcanic ash as planting soil as soil particles, and is configured so that the soil lump can be shaped by giving a certain wettability to the agglomerated particles of the shirasu balloons. The aquatic planting floor soil according to claim 1, wherein:   The aquatic plant plant according to any one of claims 1 to 3, wherein the thickener solution contains 0.003 to 0.03 parts by weight of sodium alginate and / or potassium alginate with respect to 1 part by weight of water. Floor soil.   The aquatic planting according to any one of claims 1 to 4, wherein the gelling agent solution contains 0.001 to 0.03 parts by weight of calcium salt and / or magnesium salt with respect to 1 part by weight of water. Floor soil.   Aggregate molded body of a granule composed of a soil grain and a gel layer that is gradually softened outwardly around the soil grain, and forms the inner side of the aggregate molded body An aquatic planting floor soil comprising a soil lump having a body gel layer softer than a gel layer of a granule constituting the outside vicinity of the aggregate, and aquatic plants planted in the soil lump.   Mix the soil and thickener solution in the case, plant aquatic plants in the soil that has generated a certain consistency by the thickener solution, and then in the gelling agent solution together with the soil in the case or the case A method for producing aquatic planting floor soil, wherein the shape retention treatment is carried out by immersing in water.   The said soil contains the aggregate particle | grains of the shirasu balloon which baked volcanic ash as soil particle | grains, The manufacturing method of the aquatic planting floor soil of Claim 7 characterized by the above-mentioned.