JP2009131248A - Cultivation container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cultivation container beneficially usable for a cultivation method which combines water culture and soil culture, especially a cultivation container preventing by an easy structure, culture soil held in a cultivation bed from dropping off to a water retaining tank placed below a cultivation bed, and formed so as to efficiently extend roots of plants cultivated in a cultivation bed to a water retaining tank. <P>SOLUTION: This cultivation container is such that through-holes 20 are set on a bottom wall part 16 of a cultivation bed 12, and a water-absorbing sheet 32 is arranged all over the bottom wall part 16 of the cultivation bed 12 so as to cover the through-holes 20, and on the other hand, an absorbing/root-extending member 34 which absorbs water held in a water retaining tank 14 into the water absorbing sheet 32 and promotes extension of roots is hung into the water retaining tank 14 through the through-holes 20, and a gap d is set between the water-absorbing/root-extending member 34 and an inside 21 of the through-hole. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cultivation container, and more particularly to a cultivation container for performing cultivation combining hydroponics and soil cultivation.

  Conventionally, hydroponics (nutrition culture) that cultivates plants with an aqueous solution (nutrition solution) that dissolves nutrients without using soil at all, because there is no continuous cropping failure and early cultivation becomes possible, Widely done.

  However, in hydroponic cultivation, air is pumped into the water with an air pump to dissolve the oxygen and the nutrient solution and oxygen are circulated into the plant root by circulating the nutrient solution with the pump so that the roots of the plant that have grown in the water do not rot. There is a demerit that the equipment costs and running costs such as air pumps and nutrient solution circulation pumps are required.

  In addition, in hydroponic culture, if germs enter the cultivation container, root disease is likely to occur and root rot is likely to occur.Therefore, inorganic materials such as rock wool are used as the medium so that the germs do not propagate. Consideration has been made, and as for fertilizers, inorganic fertilizers (chemical fertilizers) have been adopted instead of using organic fertilizers that lead to the growth of germs. In such a hydroponic culture medium, there is no buffering capacity to relieve or stabilize rapid changes like soil, so there are devices for adjusting and maintaining nutrient solutions and precise management technology. There is also a problem that it is necessary.

  On the other hand, in soil cultivation that is generally performed in open-air cultivation and house cultivation, the roots of plants absorb oxygen, moisture, and fertilizer from the soil, so special equipment and precise management like hydroponics are necessary. However, especially in the summer, there is a drawback that it is necessary to frequently irrigate (watering) so that the plant does not wither, and attention should be paid to continuous cropping failures.

  Under such circumstances, the present inventors invented a cultivation method that combines hydroponics and soil cultivation as a cultivation method that takes advantage of the advantages of hydroponics and soil cultivation, and as a cultivation container for performing this cultivation method. Then, a cultivation container was developed in which a cultivation bed for accommodating culture soil was arranged in the upper stage, and a water retention tank for accommodating water was installed in the lower stage.

  And as a result of investigating about the cultivation method and cultivation container which this inventor combined hydroponics and soil cultivation, in patent document 1, for storing a nutrient solution as a simple-type nutrient solution cultivation container A cultivation container provided with a storage part and a cultivation bed provided above the storage part and having a net-like bottom has been proposed. However, in such a simple hydroponic cultivation container, the bottom of the cultivation bed has a mesh shape, and the culture soil is accommodated in a state where thin paper is laid on the mesh bottom ([0018] See), the paper is deteriorated due to moisture contained in the culture soil or long-term use, and the culture soil falls through the mesh at the bottom of the cultivation bed and falls into the storage section in which the nutrient solution is stored. Moreover, also in patent document 2, the cultivation container which has a cultivation bed in which culture soil is accommodated, and a nutrient solution storage part located under this cultivation bed is proposed as a simple nutrient solution cultivation container. Although the water absorbing member is not disposed on the entire bottom of the cultivation bed, the water absorbing member such as a natural resin chip or heat moss is accommodated only in the protrusion protruding toward the nutrient solution storage portion. Therefore, the nutrient solution or water cannot be sufficiently supplied over the entire bottom of the cultivation bed, and therefore, there is a disadvantage that the position for planting or sowing the cultivation plant is limited.

JP 2003-38035 A JP 2004-222552 A

  Here, the present invention has been made in the background as described above, and the problem to be solved is a cultivation container that is advantageously used in a cultivation method that combines hydroponics and soil cultivation. In particular, the root of the plant cultivated in the cultivation bed without having to drop the culture soil accommodated in the cultivation bed into a water holding tank arranged below the cultivation bed with a simple structure. It is providing the cultivation container of the structure which can be made to extend | expand in a water retention tank effectively.

  And in order to solve such a problem, the gist of the present invention is a cultivation container having a cultivation bed for containing the cultivation soil and a water retention tank disposed below the cultivation bed, A water-absorbing sheet having a predetermined thickness that allows a root of the plant to enter and pass through the entire bottom wall of the cultivation bed so as to cover the through-hole in the bottom wall of the cultivation bed. While being placed in the water storage tank, the water absorption and root extension that absorbs the water to the water-absorbing sheet and promotes the root extension of the plant cultivated in the cultivation bed A member is disposed so as to hang down into the water retention tank through the through hole, and in a state where the water suction / root extension member is disposed, the water suction / root extension member and the inner surface of the through hole It is cultivated in the cultivation bed during In the cultivation container, characterized in that a gap to induce roots extending from the object to-holding the water tank.

In addition, according to one of the preferable aspects of the cultivation container according to this invention, the said water absorbing sheet and the said water siphoning and root elongation member are comprised with a nonwoven fabric.
Moreover, according to one of the another preferable aspects in the cultivation container according to this invention, the water injection pipe | tube which can be directly poured in in the said water retention tank, without passing through the culture soil accommodated in the said cultivation bed is provided.

  Furthermore, according to one of the desirable aspects in the cultivation container according to the present invention, the water injection pipe is erected upward from the bottom wall portion of the cultivation bed, and the height of the water injection pipe is the cultivation medium. It is made lower than the height of the side wall of the bed.

Moreover, according to one of the other preferable aspects of the cultivation container according to this invention, an insect net is arrange | positioned at the opening part of the said water injection pipe.
Furthermore, according to one of the desirable embodiments of the cultivation container according to the present invention, a drain outlet is provided at the bottom of the water retention tank, and one end of a drain tube made of a transparent material is attached to the drain outlet. A configuration is adopted in which the other end of the drainage tube is opened so as to have the same height as the maximum allowable amount of water stored in the water retention tank.

  In addition, according to another desirable aspect of the cultivation container according to the present invention, a concave groove extending in the vertical direction is provided in the peripheral wall portion of the water retention tank, and the drain tube is accommodated in the concave groove. The drainage tube is detachably attached to the water retention tank.

  Thus, in the cultivation container according to the present invention, the cultivation bed for accommodating the culture soil is arranged at the upper side, the water retention tank for accommodating the water is installed at the lower side, and the bottom of the cultivation bed A through-hole is provided in the wall, and in order to supply the water in the water retention tank to the cultivation bed side, a water suction / root elongating member is arranged to hang from the through hole into the water retention tank. By the way, the root of the plant grown in the cultivation bed extends not only in the cultivation soil of the cultivation bed but also in the water contained in the water retention tank, and cultivation that combines hydroponics and soil cultivation It is possible to complement each of the disadvantages of hydroponics and soil cultivation. That is, in soil cultivation, it is necessary to frequently irrigate, but in the present invention, the water in the water holding tank is structured to be supplied to the cultivation bed side by the water suction and root extension member, When the roots of plants extend to the water tank, water is absorbed directly by the roots, so frequent irrigation is unnecessary, and long absences and concerns about watering in summer are eliminated. Moreover, in hydroponics (hydroponic culture), a precise management technique is required, or an air pump, a nutrient solution circulation pump, or the like is required to prevent root rot, but the cultivation container according to the present invention According to the above, the root of the plant can absorb nutrients and oxygen from the culture soil accommodated in the cultivation bed as well as the water in the water retention tank, so that precise management technology becomes unnecessary, Even if there is no oxygen in the water in the water retention tank, the roots immersed in the water will not cause root rot due to lack of oxygen, and therefore there will be no equipment cost or running cost for pumps and the like. Furthermore, in hydroponics (hydroponic culture), the use of organic fertilizers was restrained in order to prevent the propagation of various bacteria. However, as with general soil cultivation, organic fertilizers and chemical fertilizers are used. You will be able to do it.

  Moreover, in the cultivation container according to the present invention, although the through-hole is provided in the bottom wall portion of the cultivation bed, the entire surface of the bottom wall portion of the cultivation bed is covered so as to cover the through-hole. Since it has a structure in which a water-absorbent sheet of a predetermined length that allows entry and passage of roots is arranged, irrigation can be performed even when culture soil is stored in the cultivation bed or in a state where the culture soil is stored. Even if it implements, it has the structure which can prevent advantageously that culture soil flows into the water retention tank arrange | positioned under the cultivation bed. And since the water absorbing sheet is arrange | positioned over the whole surface, the water sucked up by the water suction / root extending | stretching member can be supplied over the whole surface of the bottom wall part of a cultivation bed.

  Furthermore, the cultivation container according to the present invention employs, as the water-absorbent sheet, a material made of a material that allows entry and passage of plant roots, and in a state where a water suction / root elongating member is disposed, From the place where a gap is provided between the sucking / root elongating member and the inner surface of the through hole, the root extending from the plant cultivated in the cultivation bed passes through the water sucking / root elongating member It is guided into the water tank, and the growth of underwater roots is effectively promoted.

  Moreover, according to one of the preferable aspects of the cultivation container according to this invention, since the said water absorbing sheet and the said water uptake | uptake | root extension member are comprised with a nonwoven fabric, the root of the plant cultivated with a cultivation container is Even if it penetrates / passes or is entangled in a complicated manner, it is possible to advantageously prevent the water absorbent sheet and the water suction / root elongating member from breaking or corroding.

  Furthermore, according to one of the other preferable aspects in the cultivation container according to the present invention, when the plant grown in the cultivation container grows and the roots increase from where water can be directly poured into the water retention tank from the water injection pipe. The irrigated water does not readily reach the water retention tank 14, and it takes time to store the water in the water retention tank 14, but the water can be stored in the water retention tank 14 in a short time.

  Moreover, according to one of the desirable aspects in the cultivation container according to this invention, the height of the water injection pipe provided in the bottom wall part of the cultivation bed is comprised lower than the height of the side wall part of the said cultivation bed. Therefore, even when excessive irrigation is performed, excess water is introduced into the water retention tank through the water injection pipe, and excess water overflows from the side wall of the cultivation bed and soils the surroundings of the cultivation container. Such a situation can be advantageously prevented.

  Furthermore, according to one of the other preferable embodiments of the cultivation container according to the present invention, not only insects but also dust etc. enter the water holding tank from the place where the insect net is arranged at the opening of the water injection pipe. There is no such thing.

  Furthermore, according to one of the desirable aspects of the cultivation container according to the present invention, a transparent drain tube is attached to the drain port at the bottom of the water retention tank, and the other end of the drain tube is water contained in the water retention tank. Even if the water tank is made of an opaque material, the water level of the water tank can be detected from the water level in the drainage tube because it is arranged to be the same height as the maximum allowable amount. It is. Further, even if water exceeding the maximum allowable amount flows into the water retention tank, excess water can be automatically drained from the drainage tube.

  In addition, according to one of the other desirable embodiments of the cultivation container according to the present invention, the drainage tube is simply attached to the water retention tank only by housing the drainage tube in the concave groove provided in the peripheral wall portion of the water retention tank. Can do. Moreover, since the drainage tube does not protrude greatly from the outer peripheral surface of the water retention tank, the drainage tube does not get in the way, and the appearance of the entire cultivation container is also clean.

Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.
First, FIG. 1 schematically shows an embodiment of a cultivation container having a structure according to the present invention in a longitudinal sectional form. In FIG. 1, reference numeral 10 denotes a cultivation container, which has a cultivation bed 12 for containing culture soil for cultivating plants, and a water retention tank 14 disposed below the cultivation bed 12. ,It is configured.

  And the cultivation bed 12 arrange | positioned upwards is a product made from a synthetic resin, has the bottom wall part 16 and the side wall part 18 integrally, and is exhibiting the substantially longitudinal rectangular housing shape as a whole, Culture soil is put inside so that plants can be cultivated. As shown in FIG. 2, the bottom wall portion 16 is provided with two slit-like through holes 20 that extend in the width direction with a predetermined interval in the longitudinal direction. Here, the size of the through hole is set to a width of about 1 to 3 cm and a length of about 5 to 15 cm.

  As is clear from FIGS. 1 and 2, a cylindrical water injection pipe 22 extending upward from the bottom wall portion 16 is integrally provided at the center in the width direction of the bottom wall portion 16. Thus, the opening side of the cultivation bed 12 and the inside of the water retention tank 14 are communicated with each other through the water injection pipe 22. And if water is injected from the upper opening 24 side of the water injection pipe 22, water can be directly introduced into the water retention tank 14 without using the culture soil accommodated in the cultivation bed 12. Therefore, even when the plant to be cultivated grows and its roots are stretched and the irrigated water does not reach the water retention tank 14, it is possible to store water in the water retention tank 14 in a short time. Yes.

  Furthermore, in this embodiment, the height (H) of the water injection pipe 22 is designed to be lower than the height (h) of the side wall portion 18 of the cultivation bed 12. For this reason, when there is too much irrigation amount, the water overflowing on the upper surface of culture soil will be introduced in the water retention tank 14 from the upper opening part 24 side of the water injection pipe 22, and water will be cultivated bed. Overflowing over the 12 side wall portions 18 can be advantageously prevented. That is, excess water does not overflow from the side wall portion 18 of the cultivation bed 12 and stain the surroundings of the cultivation container 10.

  Further, an annular protrusion 28 is integrally formed in the circumferential direction on the inner surface 26 in the vicinity of the upper opening 24 of the water injection pipe 22, and the same inner diameter as the water injection pipe 22 is formed on the protrusion 28. A circular wire mesh 30 having a diameter slightly smaller than that is placed. The mesh size of the wire mesh 30 is about 2 to 7 mesh, so that it is possible to advantageously prevent insects and the like from entering the water holding tank 14 through the water injection pipe 22. Yes. As described above, the wire net 30 as the insect net is simply mounted on the protruding portion 28 so that the wire net 30 can be attached to the water injection pipe. Can do it.

  Moreover, as shown in FIG. 1, the bottom wall 16 of the cultivation bed 12 has a predetermined thickness (here, 1 to 5 mm) made of 1 to 3 non-woven fabrics made of chemical fibers over the entire surface. (Thickness) water-absorbing sheet 32 is disposed, and the openings of the two through holes 20 and 20 provided in the bottom wall portion 16 are completely covered. Therefore, even if the culture soil is accommodated on the water absorbent sheet 32 or irrigation is performed in a state where the culture soil is accommodated, the culture soil is advantageously prevented from flowing into the water retention tank 14. To get. In addition, the water absorbent sheet 32 made of such a nonwoven fabric has water absorbency and does not prevent the invasion or passage of plant roots. Even if this is done, moisture and the like can be sufficiently absorbed, and the roots can be extended to the inside and the bottom of the water absorbent sheet 32.

  Furthermore, in this embodiment, as shown in FIG.1 and FIG.3, the water suction / root extension sheet | seat 34 which consists of 1-3 nonwoven fabrics similar to the said water absorption sheet 32 as a water absorption / root extension member. However, in the state where the center portion in the length direction is overlapped between the water absorbent sheet 32 and the bottom wall portion 16, the two through holes 20 provided in the bottom wall portion 16 at both ends in the length direction. , 20, and hangs down to the bottom 36 of the water retention tank 14. Accordingly, when the water suction / root extension sheet 34 is immersed in the water in the water retention tank 14, the water and nutrients in the water retention tank 14 travel along the water suction / root extension sheet 34 and become the water absorption sheet. 32 (see FIG. 4).

  Further, the water suction / root extension sheet 34 is not suspended in the water retention tank 14 so as to block the entire opening of the through hole 20 as described above, but the water suction / root extension sheet 34 and the through hole 20. It arrange | positions so that a gap | interval (d in FIG. 1) may be formed between the inner surface 21 of this. Here, the gap is about 5 to 29 mm. For this reason, the roots of the plant to be cultivated can quickly extend into the water retention tank 14 and absorb moisture and nutrients directly from the water stored in the water retention tank 14 as well as from the culture soil. It will be possible.

  On the other hand, the water retention tank 14 disposed below the cultivation bed 12 is made of synthetic resin, and includes a rectangular bottom portion 36 having a width smaller than the bottom wall portion 16 of the cultivation bed 12 and a peripheral wall portion 38 surrounding the periphery thereof. As a whole, it has a casing shape, and water is stored inside. Further, the peripheral wall portion 38 is provided with a stepped portion 40 on the upper side, and a portion above the stepped portion 40 has a rectangular shape, while a portion below the stepped portion 40 expands upward. The width of the opening is larger than the width of the bottom 36.

  Moreover, the internal diameter dimension of the opening part of the water retention tank 14 is the same as or slightly larger than the external dimension of the cultivation bed 12, and the cultivation bed 12 inserted from the opening part of the water retention tank 14 is a peripheral wall of the water retention tank 14. It is supported by the step part 40 provided in the part 38, and the cultivation bed 12 and the water retention tank 14 are integrated so that attachment or detachment is possible. Thus, by placing the cultivation bed 12 above the water retention tank 14, the water retention tank 14 is in a substantially sealed state (in communication with the atmosphere through the water injection pipe 22), and the water contained therein. It has a structure in which evaporation is suppressed.

  Furthermore, the bottom part 36 of the water retention tank 14 is integrally formed with a leg part 42 having a substantially rectangular tube shape on the lower outer peripheral part thereof, and the leg part 42 includes the cultivation bed 12 and the water retention tank 14. The cultivation container 10 can be placed on the ground or the like in a stable state. In addition, a circular drain port 44 is provided at the center of the bottom portion 36 so as to protrude downward, and water stored in the water retention tank 14 can be discharged from the drain port 44. It is like that.

  Here, one end of a drainage tube 48 made of a transparent resin material is externally fitted and fixed to the cylindrical protrusion 46 of the drainage port 44. Further, the drainage tube 48 extends upward from the drainage port 44 through the notch 43 of the leg portion 42, and the other end of the drainage tube 48 has a maximum allowable amount of water stored in the water retention tank 14 (see FIG. 1, the fastener 50 is detachably fixed to the peripheral wall portion 38 so as to be the same height as the height of the one-dot chain line m). As a result, even if water exceeding the maximum allowable amount flows into the water retention tank 14 due to irrigation or rain, excess water is automatically drained from the opening 49 of the drainage tube 48. is there. In addition, although the maximum allowable amount of water stored in the water retention tank 14 can be set as appropriate, if the bottom wall portion 16 of the cultivation bed 12 is immersed in the water accommodated in the water retention tank 14, the cultivation bed 12 Since the humidity of the culture soil to be accommodated may become excessively high and the root rot of the plant may occur, the space between the bottom wall portion 16 of the cultivation bed 12 and the water surface of the water accommodated in the water retention tank 14 It is desirable that the maximum allowable amount of water is set so that a space of about 1 to 3 cm is provided.

  Further, since the drainage tube 48 described above is made of a transparent resin material, it functions as a water level detector, and even if it is impossible to visually observe the inside of the water retention tank 14, the drainage tube The water level in the water retention tank 14 can be detected from the water level in 48 (see FIG. 4). Furthermore, if the drain tube 48 is removed from the fastener 50 and the drain tube 48 is disposed at a position lower than the bottom 36 of the water retention tank 14, all the water in the water retention tank 14 can be discharged to the outside. The replacement can be easily performed.

Next, as a usage example of the cultivation container of the present embodiment having such a structure, a method for cultivating a plant using the cultivation container will be described.
First, as shown in FIG. 4, the culture soil 52 is accommodated in the cultivation bed 12. At this time, the culture soil is accommodated such that the upper surface of the culture soil 52 is lower than the height of the water injection tube 22 so that the culture soil 52 does not enter the water retention tank 14 through the water injection tube 22. Further, the amount of the culture soil may be smaller than the amount of the culture soil used in a normal planter or the like. This is because the plant cultivated in the cultivation container 10 of the present embodiment can not only absorb moisture and nutrients from the culture soil 52 but also can absorb nutrients and moisture in the water retention tank 14.

  On the other hand, water 54 is accommodated inside the water retention tank 14. Water can be introduced with the cultivation bed 12 disposed above the water retention tank 14 removed, or can be poured from the water injection pipe 22 with the cultivation bed 12 attached. It is also possible to introduce water by irrigating, and by containing water, a part or most of the water suction / root extension sheet 34 is immersed in the water 54. The amount of water is not particularly limited, but is usually about 1/5 to 4/5 of the volume of the water retention tank 14.

  Then, plant seedlings are planted or seeds are sown in the cultivation bed 12 in which the culture soil 52 and the water 54 are accommodated. At this time, in the cultivation container 10 of the present embodiment, the water sucked up by the water sucking and root extending sheet 34 from the place where the water absorbent sheet 32 is disposed over the entire surface is the cultivation bed 12. It can be supplied over the entire surface of the bottom wall 16. Therefore, the plant grows well regardless of where the plant seedling or seed is planted or sown in any position in the horizontal direction of the cultivation bed 12.

  Thus, after a plant is planted and sown on the cultivation bed 12, irrigation may be performed or an organic fertilizer or a chemical fertilizer may be applied to the culture soil 52 as necessary. Furthermore, a soil conditioner excellent in antibacterial property, insect resistance, and disease resistance, such as Super Vine, Toine Biosystem Co., Ltd., and Vine Kitton may be applied. In particular, when such a soil conditioner is applied, the roots of plants are strengthened, antibacterial properties and insect resistance are effectively enhanced, and Pichium fungus, which is a pathogenic bacterium that causes root rot in hydroponics Even if it exists, root rot is less likely to be induced. In addition, when superbaine and binekiton are applied, the application amount is about 1/100 to 1/2000 of the total amount of the culture soil and water, and may be applied about 2 to 3 times during the cultivation period. ,desirable.

  In addition, it is desirable that the irrigation is performed about 1 to 3 times a day until the root of the plant extends into the water retention tank 14. The irrigated water is stored in the water retention tank 14 via the culture soil 52, the water absorbent sheet 32, the water suction / root extension sheet 34, and the water level is confirmed with a drain tube 48 made of a transparent resin material. Can do. And before water overflows from the opening part 49 of the drain tube 48, watering is stopped. When water is stored in the water holding tank 14 and approaches the maximum allowable amount, the cultivation bed 12 is irrigated again after the water level in the water holding tank 14 is lowered, or the opening 49 of the drainage tube 48 is lowered. The water in the water retention tank 14 can be put into another container, and the water can be sprayed again from above the cultivation bed 12. In this way, wasteful water consumption can be suppressed.

  As shown in FIG. 4, the plant 56 of the cultivation bed 12 extends the roots in the culture soil 52 while penetrating the water-absorbent sheet 32 that allows the roots of the plants to enter and pass through. The root is extended into the water 54 of the water retention tank 14 through the gap d between the root extension sheet 34 and the inner surface 21 of the through hole 20. At this time, the roots of the plant extend into the water by being guided by the water suction / root extension sheet 34 through the water suction / root extension sheet 34 suspended from the through hole 20. The water uptake / root extension sheet 34 promotes the extension of the underwater roots. Specifically, when the root of the plant reaches the water absorbent sheet 32 or the water uptake / root extension sheet 34 laid on the bottom wall portion 16 of the cultivation bed 12, the moisture and nutrients contained in those sheets are removed. While absorbing, it extends along the sheet and quickly reaches the bottom 36 of the water retention tank 14. If there is no gap between the water suction / root extension sheet 34 and the inner surface of the through hole 20, or if the water suction / root extension sheet 34 is not suspended from the through hole 20, the plant 56. It is difficult for the roots to extend into the water retention tank 14, and the underwater roots cannot be grown at an early stage.

  Thus, according to the cultivation container 10 of this embodiment, the roots of the plant 56 cultivated in the cultivation bed 12 are not only in the culture soil 52 of the cultivation bed 12 but also in the water accommodated in the water retention tank 14. Therefore, cultivation combining hydroponics and soil cultivation can be performed. That is, the plant absorbs nutrients, oxygen, moisture, and the like from the culture soil 52 and also absorbs moisture and nutrients (fertilizer eluted from the culture soil by irrigation) from the water 54 in the water retention tank 14. For this reason, even if there is no oxygen in the water 54 in the water retention tank 14, root rot due to lack of oxygen does not occur. Therefore, facilities such as a pump generally used in hydroponics are unnecessary. In addition, fertilizer management according to the growth of the plant is necessary, such as applying fertilizer to the culture soil 52, but no special fertilization management is required, so the precise management technology required for hydroponics Is no longer necessary, and anyone can easily grow plants.

  Furthermore, in normal soil cultivation, it is necessary to frequently irrigate, but according to this embodiment, the root of the plant directly absorbs the water in the water retention tank 14 or the water in the water retention tank 14 absorbs water. Since it is supplied to the cultivation bed 12 side by the root extension sheet 34, frequent irrigation is unnecessary, and the worry of long absence and watering in summer is eliminated.

  Moreover, in the cultivation container 10 of this embodiment, it is set as the structure where all the water irrigated by the cultivation bed 12 is stored in the water retention tank 14. FIG. For this reason, even if the fertilizer elutes in water, the water is stored in the water retention tank 14, and the nutrients of the eluted fertilizer can be sucked up by the underwater roots of the plant, so that the fertilizer can be effectively used without waste. Moreover, since the water in which the fertilizer is dissolved is not allowed to flow out of the cultivation container 10, it is environmentally friendly.

The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention is not limited by the above description.
For example, in the above embodiment, the drainage tube 48 is fixed by the fastener 50 installed on the outer surface of the peripheral wall portion 38 of the water retention tank 14, but the drainage tube mounting structure is an example. However, the structure is not particularly limited. For example, the structure shown in FIGS. In addition, regarding the embodiment shown in FIGS. 5 to 7, members and parts having the same structure as the embodiment shown in FIGS. Therefore, the detailed description is omitted.

  Specifically, as shown in FIGS. 5 to 7, a concave groove 58 extending in the vertical direction upward from the bottom portion 36 is provided at a corner portion of the peripheral wall portion 38 of the water retention tank 14. In addition, by accommodating the drain tube 48, the drain tube 48 can be detachably attached to the water retention tank 14. More specifically, as shown in FIG. 7, the concave groove 58 has a radius of curvature slightly larger than the outer diameter of the drainage tube 48 and is cut by about 3/10 to 4/10 in the circumferential direction. It is a missing arc. For this reason, the opening part of the ditch | groove 58 is smaller than the diameter of the drainage tube 48, and the drainage tube 48 is elastically deformed and accommodated. And since the drainage tube 48 accommodated in the ditch | groove 58 returns to the original shape in the ditch | groove 58, even if there is no fastener 50, the drainage tube 58 can be fixed to the water retention tank 14 very easily. The separation is advantageously prevented. In addition, if such a structure is adopted, the drain tube 48 does not protrude greatly from the outer peripheral surface of the water retention tank 14, so that when the cultivation container is installed, the drain tube 48 does not get in the way, Moreover, the appearance of the entire cultivation container is also clean.

  Moreover, in the said embodiment, the nonwoven fabric made from a chemical fiber is employ | adopted as the water absorptive sheet 32, and even if a root of a plant penetrate | invades and passes through this, or a complex entanglement, a water absorptive sheet breaks or corrodes. However, the material of the water-absorbent sheet 32 should be a sheet-like material that has water-absorbency and allows the roots of plants to enter and pass through. For example, in addition to the non-woven fabric made of chemical fiber, a conventionally known water-absorbing sheet such as a non-woven fabric made of natural fiber, a knitted fabric, or a sponge may be used. Moreover, even if it exists in the thickness of a water absorbing sheet, it can set suitably according to the material etc. of the water absorbing sheet employ | adopted.

  Similarly, in the above embodiment, the water suction / root extension sheet 34 made of a non-woven fabric made of chemical fiber is adopted as the water suction / root extension member, thereby advantageously preventing breakage and corrosion of the sheet. In addition, the extension of the underwater root has been effectively promoted. However, as long as the water in the water retention tank 14 can be sucked up and supplied to the water absorbent sheet 32, a conventional fabric such as a woven fabric or a sponge made of natural or chemical fiber can be used. From the above, a sheet having a known water absorption property may be employed. In addition to the sheet shape, it is also possible to employ a string shape or a tube shape. Further, the length of the water suction / root elongating member depending on the length of the water retaining tank 14 is not particularly limited. However, if the water sucking / root extending member is suspended to the bottom 36 of the water retaining tank 14, the water retaining tank 14 is not particularly limited. Even if the amount of water stored in the water is reduced, water can be sucked into the water absorbent sheet 32 of the cultivation bed 12.

  Further, the bottom wall portion 16 of the cultivation bed 12 was provided with two slit-like through holes 20 extending in the width direction with a predetermined interval in the longitudinal direction. The number, shape, size and the like of the arrangement are not limited at all. Further, the size of the gap d formed between the water suction / root extending member and the inner surface of the through hole is not limited to the above example. In order to grow the underwater root in a shorter period, it is desirable that the thickness is preferably 5 mm or more.

  Furthermore, the overall shape of the cultivation container 10 is not limited to the illustrated one. If the cultivation bed is arranged in the upper stage and the water retention tank is arranged in the lower stage, the shape other than the flat rectangular shape in the above example is used. May have any shape such as a flat circular shape or a shape in which a corner of a flat rectangular shape is a curved surface as shown in FIG. 5, and the cultivation bed and the water retention tank can be attached and detached. Even if it comes to be assembled | attached, the cultivation bed and the water retention tank may be integrally fixed so that attachment or detachment is impossible. Moreover, the material of the cultivation container 10 is not limited to the resin, and any material such as metal, ceramics, or polystyrene foam may be used as long as it does not allow water to permeate.

  In addition, in the above example, the cylindrical water injection pipe 22 extending upward from the bottom wall portion 16 is provided at the center in the width direction of the bottom wall portion 16 of the cultivation bed 12. The installation position, the number of arrangements, and the shape are not limited to the illustrated ones. For example, a part of the side wall 18 of the cultivation bed 12 is used as a part of the peripheral wall of the irrigation pipe. It is also possible to configure so that a water-injecting pipe is provided at the corner or the width direction end of the cultivation bed 12.

  Further, in the above example, the circular wire net 30 is used as the insect net, but the shape of the insect net can be appropriately changed according to the shape of the water injection pipe, and the material is suitable for the material. However, it is not limited to metal, and a net made of synthetic fibers can be used as a matter of course. Furthermore, the attachment structure of the insect screen is not limited to the illustrated structure, and it is of course possible to attach the insect screen so as to cover the upper opening 24 of the water injection pipe 22.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

It is a longitudinal section explanatory view showing one embodiment of a cultivation container according to the present invention. It is a top view of the cultivation bed main body which comprises the cultivation container shown by FIG. FIG. 3 is an explanatory view taken along the line III-III in FIG. 1. It is longitudinal cross-sectional explanatory drawing which shows the use condition of the cultivation container shown by FIG. It is a top view which shows another embodiment of the water retention tank which comprises the cultivation container shown by FIG. FIG. 6 is a front view of the water retention tank shown in FIG. 5. FIG. 6 is a partially enlarged explanatory view of the water retention tank shown in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cultivation container 12 Cultivation bed 14 Water retention tank 16 Bottom wall part 18 Side wall part 20 Through-hole 21 Inner surface 22 Pouring pipe 30 Wire net 32 Water absorption sheet 34 Water absorption / root extension sheet 36 Bottom part 38 Peripheral wall part 44 Drain outlet 48 Drain tube 52 Culture soil 54 Water 56 Plant 58 Groove

Claims (7)

A cultivation container having a cultivation bed for containing the culture soil, and a water retention tank disposed below the cultivation bed,
A water-absorbing sheet having a predetermined thickness that allows a root of the plant to enter and pass through the entire bottom wall of the cultivation bed so as to cover the through-hole in the bottom wall of the cultivation bed. While placing
A water wicking / root elongating member that is immersed in water contained in the water retention tank, sucks up the water into the water absorbent sheet, and promotes the elongation of the roots of the plants cultivated on the cultivation bed, And arranged so as to hang down into the water retention tank through the hole, and in a state in which such a water uptake / root elongating member is arranged, between the water uptake / root elongate member and the inner surface of the through-hole, The cultivation container provided with the gap | interval for guide | inducing the root extended from the plant cultivated with a cultivation bed in this water retention tank.   The cultivation container according to claim 1 in which said water-absorbing sheet and said water uptake and root extension member are nonwoven fabrics.   The cultivation container according to claim 1 or 2, wherein a water injection pipe capable of directly injecting water into the water retention tank without using the culture soil accommodated in the cultivation bed is provided.   The water injection pipe is erected upward from the bottom wall portion of the cultivation bed, and the height of the water injection pipe is lower than the height of the side wall portion of the cultivation bed. The cultivation container according to claim 3.   The cultivation container according to claim 3 or 4, wherein an insect net is arranged in an opening of the water injection pipe.   A drainage port is provided at the bottom of the water retention tank, and one end of a drainage tube made of a transparent material is attached to the drainage port, while the other end of the drainage tube is opened to the water retention tank. The cultivation container according to any one of claims 1 to 5, wherein the cultivation container is disposed so as to have the same height as a maximum allowable amount of water to be accommodated.   A concave groove extending in a vertical direction is provided in a peripheral wall portion of the water retention tank, and the drain tube is detachably attached to the water retention tank by accommodating the drain tube in the concave groove. The cultivation container of claim | item 6.

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