JP2006345783A - Hydroponics device of japanese ginger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydroponics device intended for extremely decreasing plant diseases caused by stagnation of nutritious liquid, and cultivating plants to be cultivated together besides Japanese ginger, while growing together the plants in the ideal environment. <P>SOLUTION: This hydroponics device has a medium 4, a root cutting sheet 3 laminated under the medium 4, a water retention sheet 5 laminated under the root cutting sheet 3, a groundwork film 2 laminated under the water retention sheet 5 and a base plate 1 laminated under the groundwork film 2 to place the medium 4. The base plate 1 is set with a pair of side walls 6 along both the side edges, and a pair of side grooves 7 apart to the inside from the side walls 6, and has a top inclined surface 8 between the side walls 6 and the side grooves 7. The medium 4 is divided into a central medium 4A arranged on the central upper surface 12 between a pair of the side grooves 7 and a side medium 4B arranged on the inclined surface 8 on the side of the central medium 4A. The hydroponics device pours waste liquid which permeates the side medium 4B, from the inclined surface 8 toward the side grooves 7, and discharges from the side grooves 7 to the outside of the base plate 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cultivating apparatus for cultivating myoga by supplying a cultivating solution to a medium in which the syringa is planted to grow the gyoda, and more particularly to an cultivating apparatus for cultivating myoga that can also cultivate other crops together with the myoga.

An apparatus for hydroponically cultivating myoga has been developed. (See Patent Document 1)
The cultivation apparatus described in this publication is shown in FIG. In this apparatus, a rock wool 32 having a predetermined thickness is laid on a tray 31 filled with a nutrient solution 30, a root cutting sheet 33 is stacked on the rock wool 32, and a medium 34 is placed on the root cutting sheet 33. Are laminated. The nutrient solution 30 in the tray 31 is controlled to a level where the lower part of the rock wool 32 is immersed and the root cutting sheet 33 is not immersed.

  The cultivation apparatus described in this publication has the disadvantages that plants such as myoga to grow are likely to become ill and the equipment cost is very high. Plants are prone to disease because the nutrient solution is stored in the tray, which becomes dirty and rots. In addition, the cultivation equipment is expensive because the tray does not leak to store the nutrient solution, and thick rock wool is laid on the tray, and only the lower part of this rock wool is used as the nutrient solution. This is because the nutrient solution level is accurately controlled so as to be immersed.

Cultivation devices that quickly drain nutrient solution from plant culture media have been developed. (See Patent Document 2)
The cultivation apparatus described in this publication lays a water vapor discharge material at the bottom of the culture medium. The moisture vaporized discharge material is drawn out through a through hole provided in the bottom of the tray. This moisture vaporizing and discharging material is a non-woven fabric that absorbs moisture from the medium and transfers it to the outside. The moisture transferred to the outside by the moisture vaporizing material is vaporized and lost. This cultivating apparatus discharges the moisture of the culture medium to the outside with a moisture vaporizing and discharging material.

Although the cultivation apparatus of this structure transfers the water | moisture content of a culture medium outside with a moisture vaporization discharge material, the moisture content of a culture medium bottom part becomes high, and this part cannot be made into a state with a low moisture content. This is because as the moisture content of the culture medium decreases, it becomes difficult for the moisture of the culture medium to transfer to the water vaporized discharge material. Therefore, this medium has a drawback that it is difficult to protect various plants from diseases and grow vigorously.
JP 11-318244 A JP-A-11-313565

  The first object of the present invention was developed for the purpose of solving the above disadvantages of the conventional cultivation apparatus, and an important object of the present invention is a plant disease caused by stagnation of nutrient solution. It is in providing the cultivation apparatus for hydroponic cultivation which can reduce an installation cost remarkably in addition to extreme reduction.

  By the way, myoga cultivated with the cultivation apparatus shown in FIG. 1 takes about half a year from planting to harvesting. For this reason, it is necessary to continue cultivation without profits for a considerably long period after planting. If plants that can be harvested faster than Myouga, such as plants such as beans, can be cultivated together, beans and others can be harvested before Myoga is harvested to increase profits.

  The second object of the present invention is to provide a hydroponic cultivation apparatus for Myouga that can grow other plants together.

  Furthermore, the third object of the present invention is to grow a plant other than Myouga together, grow a plant grown together in an ideal environment, and grow a plant other than Myoga while It is in providing the hydroponic cultivation apparatus of a myoga which can be strengthened.

In order to achieve the above-mentioned object, the hydroponic cultivation apparatus for myoga of the present invention has the following configuration.
The apparatus for cultivating myoga is a medium 4 having a predetermined thickness and width for growing myoga roots, and prevents the roots of myoga that are stacked under the medium 4 and planted in the medium 4 from passing therethrough. Then, a root cutting sheet 3 that allows water to pass through, a water retaining sheet 5 that is laminated under the root cutting sheet 3 and supplies water to the culture medium 4, and a base film 2 that is laminated under the water retaining sheet 5 And a base plate 1 that is laminated under the base film 2 and on which the culture medium 4 is placed. The base plate 1 is formed by foaming plastic, and is integrally provided with a pair of side walls 6 protruding upward along both side edges. Further, the base plate 1 is provided with a pair of side grooves 7 along the side walls 6 at positions away from the pair of side walls 6, and the upper surface between the side walls 6 and the side grooves 7 faces the side grooves 7. Thus, the inclined surface 8 is inclined downward. The culture medium 4 is disposed on the central surface 4A disposed on the central upper surface 12 between the pair of side grooves 7 provided on the base plate 1, and on the inclined surface 8 on the side of the central culture medium 4A. It is separated into the side medium 4B. In this nutrient solution cultivating apparatus, waste liquid that is supplied to the culture medium 4 and permeates the side culture medium 4 </ b> B flows from the inclined surface 8 toward the side groove 7, and is drained from the side groove 7 to the outside of the base plate 1.

  In the apparatus for cultivating myoga of the present invention, the water retention sheet 5 is a water retention mat in which inorganic fibers are three-dimensionally assembled without directionality, or fibers are assembled without directionality and fibers are joined at intersections. It can be a non-woven fabric.

  The hydroponic cultivation apparatus for myoga of the present invention can incline the central upper surface 12 of the base plate 1 toward the side groove 7 in a downward gradient.

  The hydroponic cultivation apparatus for myoga of the present invention provides a central groove 11 between the side grooves 7 of the base plate 1, and the central upper surface 12 is inclined downwardly toward either or both of the central groove 11 and the side grooves 7. be able to.

  The hydroponic cultivation apparatus for myoga of the present invention can use the side medium 4B as a medium for planting plants other than myoga.

  The hydroponic cultivation apparatus for myoga of the present invention can divide the base plate 1 into a plurality of partition plates 1A and connect the partition plates 1A arranged adjacent to each other with a fitting structure.

  The hydroponic cultivation apparatus for myoga of the present invention is characterized in that the disease of the plant caused by the stagnation of the nutrient solution can be extremely reduced. That is, the hydroponic device of the present invention provides a pair of side walls projecting upward along both side edges of the base plate on which the medium is placed, and a pair of side walls along the side walls at positions away from the pair of side walls. A side groove is provided, and the upper surface between the side wall and the side groove is an inclined surface having a downward slope toward the side groove. It is because it drains outside. The nutrient solution cultivating apparatus with this structure allows the nutrient solution that has passed through the culture medium and the root cutting sheet to flow quickly and drain from the base plate without storing as in the conventional nutrient solution cultivating apparatus. Can reduce plant diseases caused by.

  In particular, the hydroponic cultivation apparatus according to the present invention includes a culture medium, a central culture medium disposed on a central upper surface between a pair of side grooves, and a side portion of the central culture medium that is disposed on an inclined surface. Since it is separated from the culture medium, the waste liquid that permeates the side culture medium flows from the inclined surface toward the side groove without stagnation at the side edge of the foundation plate, and is quickly drained to be planted in the side culture medium. The plant growth environment can be maintained in a more ideal environment.

  Furthermore, the nutrient solution cultivating apparatus of the present invention does not require a structure that does not leak water as in the prior art, and does not require a mechanism for controlling the stored nutrient solution level, so that the facility cost can be significantly reduced. There is also. In particular, the hydroponic cultivation apparatus of the present invention has a feature that it can be mass-produced at low cost because a foamed plastic is used for the base plate.

  Furthermore, the hydroponic cultivation apparatus of the present invention is a water retention sheet laminated under the root cutting sheet, and retains the medium and water that permeates the root cutting sheet, so that when the culture medium dries, the moisture from the water retention sheet to the culture medium The plant has a feature that allows plants to grow while preventing excessive drying of the medium.

  In the hydroponic cultivation apparatus according to claim 3 of the present invention, since the central upper surface of the base plate is inclined downward toward the lateral groove, the waste liquid that passes through the central culture medium and is drained to the upper side of the central upper surface is removed from the lateral groove. It is possible to drain quickly from the side groove to the outside of the foundation plate.

  In the hydroponic cultivation apparatus according to claim 4 of the present invention, since the central groove is provided between the side grooves of the base plate, the waste liquid that permeates the central medium and drains to the upper side of the central upper surface can be drained more efficiently. In particular, this nutrient solution cultivating apparatus has the central upper surface inclined downwardly toward either or both of the central groove and the side groove, so that the waste liquid drained to the upper side of the central upper surface is directed toward the central groove or the side groove. It can drain quickly and drain.

  The hydroponic cultivation apparatus according to claim 5 of the present invention inoculates a plant other than myoga on the side culture medium, so that a plant that is cultivated together can be cultivated in an ideal environment while growing a plant other than myoga. . In particular, this hydroponic cultivation device can increase the profit by harvesting the crop planted on the side culture medium until the harvest of the myoga planted on the central culture medium.

  Furthermore, in the hydroponic cultivation apparatus according to claim 6 of the present invention, the base plate is divided into a plurality of partition plates, and the partition plates arranged adjacent to each other are connected by a fitting structure. The partition plates can be easily connected to realize an elongated base plate.

  Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify a nourishing hydroponic cultivation apparatus for embodying the technical idea of the present invention, and the present invention does not specify the nourishing hydroponic apparatus for myoga as follows. .

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  2 and FIG. 3 shows a culture apparatus for a myoga that has a predetermined thickness and width for growing a myoga root, and is stacked under the medium 4 and planted in the medium 4. A root cutting sheet 3 that prevents the roots from passing therethrough and allows water to pass therethrough, a water retention sheet 5 that is laminated under the root cutting sheet 3 and supplies water to the culture medium 4, and under the water retention sheet 5 A base film 2 that is laminated, and a base plate 1 that is laminated under the base film 2 and on which the culture medium 4 is placed are provided. In these nutrient solution cultivation apparatuses, the nutrient solution 20 is supplied to the culture medium 4 in which the myoga is planted by the water feeder 25 to grow the myoga.

  As shown in FIGS. 4 to 11, the base plate 1 is integrally formed with a pair of side walls 6 protruding upward along both side edges. The side wall 6 prevents the culture medium 4 placed on the base plate 1 and the nutrient solution 20 supplied from the water supply pipe 23 from spilling out to the outside of the base plate 1. Therefore, the height of the side wall 6 is formed to a height that can prevent the culture medium 4 and the nutrient solution 20 from spilling outside. The height of the side wall 6 is 1 cm or more, preferably 2 cm or more, more preferably 3 cm or more. The higher the side wall, the more reliably the medium and nutrient solution can be prevented from spilling out. However, the high side walls are weak and weak. Therefore, the side wall 6 is lower than 10 cm, preferably 8 cm or less. The side wall 6 can be increased in strength by increasing its thickness. However, if the side wall 6 is thickened, the width of the entire base plate 1 is widened. Therefore, the side wall 6 has a thickness of 1 to 5 cm, preferably 2 to 3 cm, and a height of 1 to 10 cm, preferably 3 to 8 cm, and more preferably 4 to 7 cm.

  Further, the base plate 1 is provided with a pair of side grooves 7 along the side walls 6 at positions away from the pair of side walls 6. As shown in FIG. 9, the side grooves 7 are provided to extend to both end surfaces of the base plate 1. The base plate 1 guides waste liquid that permeates the culture medium 4 to the side grooves 7 and drains the waste liquid from the side grooves 7 to the outside of the base plate 1. The side groove 7 has a width and a depth that allow the waste liquid to flow smoothly. Even if the side groove 7 is too narrow or too deep, foreign matter contained in the waste liquid is likely to be clogged, and the waste liquid cannot be drained smoothly. For this reason, the width and depth of the side groove 7 are, for example, 1 cm or more, preferably 2 cm or more. However, the overall strength of the foundation plate decreases when the width of the side groove is increased and the depth is increased. For this reason, the width and depth of the side groove 7 are, for example, smaller than 7 cm, preferably 6 cm or less. The width and depth of the side groove 7 are preferably set to 3 to 5 cm in order to reduce clogging of the waste liquid and hold the culture medium 4 horizontally.

  Further, the base plate 1 has an upper surface between the side wall 6 and the side groove 7 as an inclined surface 8 that is inclined downward toward the side groove 7. The base plate 1 drains waste liquid that has passed through the culture medium 4 disposed above the inclined surface 8 by flowing from the inclined surface 8 toward the side groove 7. That is, the base plate 1 can quickly flow the waste liquid that passes through the culture medium 4 in the vicinity of the side wall 6 toward the side groove 7 without stagnation in the corner portion at the foot of the side wall 6. Moreover, since the base plate 1 which makes this part the inclined surface 8 can shape | mold the side edge plate part 9 which is a connection part with the side wall 6 gradually thickly toward the side wall 6, There is also a feature that can increase the connection strength.

  Further, the base plate 1 shown in the drawing is provided with a plurality of rows of reinforcing ribs 10 which are located on the bottom surface side of the side wall 5 and the inclined surface 8 and project downward. The reinforcing ribs 10 are formed in a direction perpendicular to the side walls 6 and are integrally formed at a predetermined interval on the bottom surface side of the base plate 1. The reinforcing rib 10 supports the side edge plate portion 9 and the side wall 6 from the lower side to reinforce them, and prevents this portion from being deformed or broken.

  Further, the base plate 1 is provided with a central groove 11 between the pair of side grooves 7. The central groove 11 is located in the middle of the pair of side grooves 7 and is provided in parallel with the side grooves 7. The central groove 11 is also extended to both end surfaces of the base plate 1. The central groove 11 guides a part of the waste liquid that permeates the culture medium 4 disposed above the central upper surface 12 of the base plate 1 and efficiently drains it. The width and depth of the central groove 11 can also be in the same range as the side groove 7 described above.

  Furthermore, the base plate 1 shown in the figure has a central upper surface 12 between the pair of side grooves 7 inclined downward toward the side grooves 7. This structure has a feature that waste liquid that permeates the culture medium 4 disposed above the central upper surface 12 can be drained by quickly flowing down toward the side grooves 7 on both sides. However, the base plate can be inclined downwardly toward the central groove at the central upper surface, or inclined downward toward both the side groove and the central groove.

  Further, the base plate 1 connects the pair of side grooves 7 and the central groove 11 with a connecting groove 13. The connecting groove 13 is a groove provided by connecting a pair of side grooves 7, crossing the central groove 11 and intersecting the central groove 11 perpendicularly. The connecting groove 13 drains the waste liquid flowing through the central groove 11 by flowing into the side groove 7. The connecting groove 11 also serves to guide and drain a part of the waste liquid that permeates the culture medium 4 disposed above the central upper surface 12 of the base plate 1. The width and depth of the connecting groove 13 can also be in the same range as the side groove 7 described above.

  Further, the connecting groove 13 shown in FIG. 8 has a bottom surface inclined downwardly from the central groove 11 toward the side grooves 7 on both sides. The connecting groove 13 having this structure can quickly cause the waste liquid flowing through the central groove 11 to flow down toward the side groove 7. However, the connecting groove can also be inclined downwardly from the one side groove toward the other side groove. In this structure, the waste liquid flowing in one side groove and the central groove flows down to the other side groove and is drained.

  Further, the base plate 1 is provided with drain holes 14 for draining the waste liquid flowing into the side grooves 7 to the outside of the base plate 1. The base plate 1 shown in FIG. 4 is provided with a drain hole 14 at the center of one side groove 7. As shown in FIG. 8, the drain hole 14 is a through-hole penetrating the bottom surface of the foundation plate 1, and allows the waste liquid flowing into the side groove 7 to pass therethrough and drain to the outside. Although the base plate is not shown, the bottom of the side groove is inclined downward toward the drain hole, and the waste liquid flowing through the side groove can be quickly passed through the drain hole.

  The base plate 1 having the above structure is manufactured by foaming plastic. This basic plate 1 can be mass-produced at low cost. The base plate 1 made of plastic foam may be provided with a non-foamed layer on the surface to prevent the penetration of the waste liquid, or foam into closed cells to prevent the penetration of the waste liquid. it can. However, the foundation plate is a non-permeable sheet base film laid on the upper surface and can prevent the waste liquid from penetrating into the foundation plate. Therefore, the foundation plate does not need to have a complete waterproof structure. The plastic foam base plate 1 can be made of foamed polystyrene and can be mass-produced particularly at low cost. However, the base plate can also be made of other plastic foams such as vinyl chloride foam, EVA foam, urethane foam and the like.

  Furthermore, the basic plate 1 shown in the drawing is divided into a plurality of partition plates 1A, and the partition plates 1A arranged adjacent to each other are connected by a fitting structure. The base plate 1 can be elongated and connected like a bowl by arranging partition plates 1A of a predetermined size. The partition plate 1A is provided with a protrusion 15 and a recess 16 that can be fitted to each other at adjacent edges. As shown in FIG. 11, the base plate 1 can connect the adjacent partition plates 1 </ b> A in a fixed position by putting the protruding portion 15 in the recessed portion 16. Since the hydroponic cultivation apparatus lays the base film 2 of the non-permeable sheet on the base plate 1, it is not necessary to connect the partition plates 1A with a waterproof structure so that water does not leak from the connecting portion. This is because the waste liquid can be collected while being prevented from penetrating the upper surface of the base plate 1 by the base film 2 laid on the top.

  The base film 2 is laid on the base plate 1. The base film 2 partitions the medium 4, the root cutting sheet 3 and the water retaining sheet 5 disposed on the upper side, and the base plate 1 when disposed on the lower side. The base film 2 is a water-impermeable sheet, and prevents waste liquid that has passed through the culture medium 4 from passing therethrough and penetrating to the base plate 1. The base film 2 is larger than the outer shape of the base plate 1 and is extended to the outer surfaces of the side walls 6 on both sides. This is to prevent the waste liquid from entering between the side wall 6 and the base film 2.

  The base film 2 is laid in a state along the upper surface of the base plate 1. The base film 2 laid in the side groove 7 and the central groove 11 is laid along the inner surface thereof as shown in FIGS. In the base film 2 laid along the inner surfaces of the side grooves 7 and the central groove 11, the waste liquid flows in the grooves formed inside thereof. Therefore, in this specification, “the waste liquid flows through the side grooves and the central groove” means that the waste liquid does not flow directly inside the side grooves and the central groove, but inside the base film laid inside the side grooves and the central groove. Means that the waste liquid flows.

  The base film 2 is a water-impermeable sheet made of a plastic film. A polyethylene film is suitable for the base film 2 of the non-water-permeable sheet which is a plastic film. However, a vinyl chloride film can also be used as the plastic film of the base film. Furthermore, the hydroponic cultivation apparatus of the present invention does not specify a base film that is a water-impermeable sheet as a plastic film. This is because, for example, a non-woven sheet or cloth having a waterproof surface can be used for the base film which is a non-water-permeable sheet. Base films composed of non-woven fabrics and cloths are harder to tear than plastic films and have the advantage of being resistant to heat.

  The water retaining sheet 5 is located on the upper surface of the base plate 1 and is laid on the base film 2. That is, the water retaining sheet 5 is disposed between the base film 2 and the root cutting sheet 3. The water retaining sheet 5 absorbs and retains the waste liquid that has passed through the culture medium 4 and the root cutting sheet 3. The water retention sheet 5 is a water retention mat in which inorganic fibers are gathered three-dimensionally without directionality, a nonwoven fabric in which fibers are gathered without directionality and fibers are bonded at intersections, rock wool having a predetermined thickness, woven fabric, Water-resistant paper or the like can be used. The hydroponic cultivation apparatus shown in FIG. 2 uses the water retention sheet 5 as a water retention mat, and the hydroponic culture apparatus shown in FIG. 3 uses the water retention sheet 5 as rock wool. Since these nutrient solution cultivation apparatuses retain water in the water retention sheet 5, when the culture medium 4 is dried, the moisture retained is permeated through the root cutting sheet 3 and supplied to the culture medium 4. The water in the water retaining sheet 5 is vaporized and supplied to the culture medium 4 or permeated through the root cutting sheet 3 and permeated into the culture medium 4 to be replenished. Therefore, these hydroponic cultivation apparatuses have the feature that they can grow plants while preventing the medium 4 from being overdried.

  The root cutting sheet 3 is a sheet also called a root prevention sheet, and a commercially available sheet is used. The root cutting sheet 3 can be a nonwoven fabric in which fine fibers are three-dimensionally assembled. Further, a plastic film provided with an infinite number of fine through holes can be used as the root cutting sheet 3. Furthermore, the root cutting sheet 3 can be any sheet that can permeate water and prevent the roots of the plant from growing and passing.

  The root cutting sheet 3 is laminated under the medium 4 and prevents the roots of plants planted in the medium 4 from passing therethrough. The root cutting sheet 3 shown in the figure is disposed between the culture medium 4 and the water retention sheet 5, and prevents the roots of the plant from extending and entering the grooves of the water retention sheet 5 and the base plate 1. This is because if the roots of plants enter the grooves of the water retention sheet 5 or the base plate 1, the roots come into contact with the waste liquid and become sick. Therefore, the root cutting sheet 3 is preferably disposed on the entire upper surface of the base plate 1 as shown in FIGS. However, when a plant is grown on a part of the medium, not on the entire upper surface of the base plate, it is not always necessary to dispose the root cutting sheet on the entire surface of the base plate. The root cutting sheet 3 in the figure is laid horizontally on the water retaining sheet 5 and hung downward from both sides of the side wall 6 of the foundation plate 1. This hydroponic cultivation apparatus can reliably prevent plant roots and the culture medium 4 from entering between the root cutting sheet 3 and the base film 2.

  The culture medium 4 is required to have water retention for retaining the supplied water and drainage for draining excess water. The medium 4 shown in the figure has a mat shape with a predetermined thickness and is placed on the root cutting sheet 3. As the medium 4, an optimal medium for a plant to be grown is selected. For example, in the case of a myoga, an organic substance such as coconut shell or bark is pressed and solidified into a mat having a predetermined thickness. In the case of growing Ginger on this medium 4, for example, a medium having a length of 1 m, a width of 30 cm, and a thickness of about 12 cm in a state where a nutrient solution is supplied is used. However, any medium having water retention and drainage suitable for plant growth, for example, an organic substance or an inorganic substance alone or a mixture thereof can be used as the medium. As the medium that is an inorganic substance, for example, particles or rock wool obtained by sintering silica or alumina in an infinite number of voids can be used.

  Furthermore, the culture medium 4 is provided on a central culture medium 4A provided on the central upper surface between the pair of side grooves 7 provided on the base plate 1, and on the inclined surface 8 which is a side portion of the central culture medium 4A. The side culture medium 4B is separated. This hydroponic cultivation apparatus can be cultivated by planting a ginger in the central medium 4A and planting a plant other than the ginger in the side medium 4B. For example, the hydroponic cultivation apparatus can plant a plant that can be harvested faster than mioga, such as vegetables such as beans and cucumbers, in the side culture medium 4B. This hydroponic cultivation apparatus can harvest the crops planted in the side culture medium 4B and increase the profits until the harvest of the myoga planted in the central culture medium 4A. In particular, this nutrient solution cultivating apparatus can quickly drain the waste liquid that permeates the side culture medium 4B from the inclined surface 8 toward the side groove 7 without stagnation in the side edge of the base plate 1. The growth environment of the plant planted in the partial medium 4B can be maintained in an ideal environment.

  Further, the nutrient solution cultivating apparatus shown in FIGS. 2 and 3 is provided with one water retaining sheet 5 over almost the entire upper surface of the base plate 1. Water retaining sheets having different water retention rates can be respectively disposed on the lower side of the side culture medium. For example, a water retention sheet with a high water retention rate is placed under the central medium to prevent overdrying, while a water retention sheet with a low water retention rate is placed under the side culture medium to provide excellent drainage Can also be realized. That is, as the water retention sheet disposed on the lower side of the central culture medium and the lower side of the side culture medium, a sheet that is optimal for the vegetation of plants planted in each culture medium can be used. Furthermore, the water retention sheet does not necessarily have to be disposed over the entire upper surface of the base plate. For example, the water retention sheet is disposed only on the lower side of the central medium, and the water retention sheet on the lower side of the side culture medium is omitted. You can also.

  The above hydroponic cultivation apparatus is arranged horizontally on the horizontal cultivation table 26. The horizontal cultivation table 26 shown in FIG. 2 and FIG. 3 is a mounting table arranged away from the ground. As described above, the nutrient solution cultivation apparatus placed on the platform has a feature that the waste liquid drained to the outside from the drain hole 14 can flow down naturally and can be efficiently recovered. However, the horizontal cultivation table does not necessarily need to be a platform that is separated from the ground, and the hydroponic cultivation apparatus can be directly placed on the open ground with the horizontal cultivation stand as the open ground.

  The nutrient solution cultivation apparatus shown in the drawing supplies the nutrient solution 20 to the culture medium 4 in which the plant is planted by the water feeder 25. As shown in the figure, the water feeder 25 includes a tank 21 that stores the nutrient solution 20, a pump 22 that sucks and transfers the nutrient solution 20 in the tank 21, and a nutrient solution 20 that is supplied from the pump 22. 4 and a water supply pipe 23 for spraying water. The water feeder 25 having this structure continuously operates the pump 22 to continuously supply a fixed amount of nutrient solution 20 to the plant, or controls the operation of the pump 22 by the control unit 24 to supply a predetermined amount of nutrient solution 20 to a predetermined amount. Feed plants at time intervals. The nutrient solution 20 supplied to the plant passes through the culture medium 4 and the root cutting sheet 5, a part is absorbed by the water retention sheet 5, and the rest flows into the side groove 7 as waste liquid and is drained to the outside. As shown in the figure, the waste liquid drained to the outside from the side groove 7 is collected and circulated to the tank 21 of the water feeder 25. The water supply device 25 shown in the figure has a structure in which the waste liquid recirculated to the tank 21 is supplied again to the culture medium 4 through the water supply device 25, but the recovered waste liquid is not recirculated to the tank 21 of the water supply device 25. It can also be collected in a collection tank separate from the water supply.

  The nutrient solution 20 supplied to the plant is a solution obtained by adding fertilizers and chemicals to water. Therefore, it is not preferable that the waste liquid that has passed through the culture medium 4 and the root cutting sheet 3 is drained to the open ground. This is because the soil contained in the waste liquid may contaminate the soil in the open ground or promote the growth of weeds and bacteria. As described above, the nutrient solution cultivation apparatus that collects the waste liquid drained to the outside from the base plate has a feature that prevents the waste liquid from penetrating into the open ground and can grow plants in an ideal environment.

  The collected waste liquid is discarded or supplied to the medium again. The waste liquid collected and supplied again to the culture medium 4 is adjusted to a predetermined fertilizer concentration by adding necessary fertilizer. However, the recovered waste liquid can also be supplied to the culture medium 4 for the purpose of replenishing water without adjusting the fertilizer concentration. An apparatus that supplies the collected waste liquid to the medium 4 again can effectively use water to reduce the amount of water consumed. In addition, since the waste liquid contains fertilizer, the apparatus for supplying the waste liquid to the medium again has a feature that the running cost can be reduced. Furthermore, there is a feature that waste liquid containing fertilizer is not drained to the surroundings.

It is a longitudinal cross-sectional view which shows the structure of the conventional hydroponic cultivation apparatus. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic sectional drawing of the nourishing hydroponic cultivation apparatus concerning one Example of this invention. It is a schematic sectional drawing of the hydroponic cultivation apparatus of a myoga concerning other Examples of this invention. It is a top view of a foundation plate. It is a bottom view of the foundation plate shown in FIG. It is a front view of the foundation plate shown in FIG. It is the sectional view on the AA line of the base plate shown in FIG. It is a BB sectional view of the foundation plate shown in FIG. It is CC sectional view taken on the line of the base plate shown in FIG. It is the DD sectional view taken on the line of the base plate shown in FIG. It is a side view which shows the connection structure of a partition plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base plate 1A ... Partition plate 2 ... Base film 3 ... Root cutting sheet 4 ... Medium 4A ... Central culture medium
4B ... Side culture medium 5 ... Water retention sheet 6 ... Side wall 7 ... Side groove 8 ... Inclined surface 9 ... Side edge plate part 10 ... Reinforcing rib 11 ... Central groove 12 ... Center upper surface 13 ... Connecting groove 14 ... Drain hole 15 ... Protrusion 16 ... Recess 20 ... Nutrient solution 21 ... Tank 22 ... Pump 23 ... Water supply pipe 24 ... Control unit 25 ... Water supply device 26 ... Horizontal cultivation table 30 ... Nutrient solution 31 ... Tray 32 ... Rock wool 33 ... Root cutting sheet 34 ... Medium

Claims (6)

A medium (4) having a predetermined thickness and width for growing the roots of the myoga and a layer of the medium (4) stacked under the medium (4) to prevent the passage of the roots of the myoga planted in the medium (4). A root cutting sheet (3) that allows water to pass through, a water retaining sheet (5) that is stacked under the root cutting sheet (3) and supplies water to the culture medium (4), and a bottom of the water retaining sheet (5) And a base plate (1) that is laminated under the base film (2) and a base plate (1) on which the medium (4) is placed.
The base plate (1) is formed by foaming plastic, and is formed by integrally forming a pair of side walls (6) protruding upward along both side edges, and further from the pair of side walls (6). A pair of side grooves (7) are provided along the side wall (6) at a position away from the inside, and the upper surface between the side wall (6) and the side groove (7) is directed toward the side groove (7). Inclined surface (8) that is inclined downward and
The medium (4) includes a central medium (4A) disposed on the central upper surface (12) between the pair of lateral grooves (7) provided on the base plate (1), and a side portion of the central medium (4A). Separated into a side culture medium (4B) disposed on the inclined surface (8),
Waste liquid that is supplied to the culture medium (4) and permeates the side culture medium (4B) flows from the inclined surface (8) toward the side groove (7), and is drained from the side groove (7) to the outside of the base plate (1). Myoga nourishing culture equipment.   The water-retaining sheet (5) is a water-retaining mat in which inorganic fibers are gathered three-dimensionally without directionality, or a non-woven fabric in which fibers are gathered without directionality and fibers are bonded at intersections. Myoga hydroponic cultivation equipment.   The hydroponic cultivation apparatus of myoga according to claim 1, wherein the central upper surface (12) of the base plate (1) is inclined downward toward the lateral groove (7).   The central groove (11) is provided between the side grooves (7), and the central upper surface (12) is inclined downwardly toward one or both of the central groove (11) and the side groove (7). Myoga hydroponic cultivation device described.   The hydroponic cultivation apparatus for myoga according to claim 1, wherein the side medium (4B) is a medium for planting plants other than myoga. The base plate (1) is divided into a plurality of partition plates (1A), and the partition plates (1A) arranged adjacent to each other are connected by a fitting structure. Hydroponic cultivation equipment.

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