JP2014075991A - Cultivation vessel, cultivation bed and cultivation device - Google Patents

Abstract

A cultivation container capable of forming a cultivation bed having a preferred size corresponding to the type of crop to be cultivated, a cultivation bed formed using the cultivation container, and a cultivation apparatus using the cultivation are provided.
A cultivation container for storing cultivation soil for cultivation, comprising a polygonal floor and side walls provided on each side of the floor, and configured so that the size of the floor can be changed. . A cultivation container having a substantially square floor. The cultivation container by which the said floor is a substantially rectangular shape and is comprised so that the width | variety of the floor decided by the distance between the two side walls of the long side of a floor can be changed. The cultivation floor in which the cultivation soil is accommodated in the cultivation container. The cultivation apparatus provided with the irrigation apparatus which supplies liquid fertilizer to said cultivation bed and a cultivation floor.
[Selection] Figure 1

Description

  The present invention relates to a cultivation container, a cultivation bed, and a cultivation apparatus, and more specifically, a cultivation container in which width and depth can be adjusted, a cultivation bed formed using the cultivation container, and a cultivation apparatus using the cultivation bed. About.

  In recent years, in greenhouse horticultural cultivation, in place of conventional soil cultivation, cultivation methods such as hydroponics that cultivate crops by isolating the medium from the ground (soil) are often used.

  As one of the above-mentioned plant cultivation methods by hydroponics, there is a cultivation method using sandy soil or sandy artificial soil as in the sand ponics type sand cultivation system (for example, Patent Document 1 and Patent Document 2). .

  Such a cultivation method has an advantage not in hydroponics that it is difficult to be infected with pathogenic bacteria, and is basically suitable for pesticide-free cultivation.

  Moreover, since sandy soil forms voids in the culture medium, it is possible to sufficiently retain the nutrient water necessary for the crop and to supply sufficient oxygen to the crop root. As a result, crop roots do not suffer from excessive moisture, and the rhizosphere portion of the medium can be in a state with sufficient oxygen.

  And since the trace component required for cultivation can be obtained from sand, it does not need a complete culture solution like hydroponics, and it is only necessary to give nourishing water containing three elements of nitrogen, phosphoric acid, and potassium.

  And sand soil which is cultivated soil can be used over a long period of time because it does not cause continuous cropping failure even if it is repeatedly used by washing with water, and there is no change in the amount of trace components.

  The above-mentioned cultivation method having the above-described characteristics is applicable to any of various kinds of potatoes, root vegetables such as radish and small turnips, fruit vegetables such as tomatoes, eggplants and melons, komatsuna, spinach, lettuce, and leafy vegetables such as bell peppers. Since it can also be applied, crops according to the season can be cultivated throughout the year.

  And in said cultivation method, conventionally the cultivation bed by which width, thickness (sand thickness), and length were fixed was used as a cultivation floor which grows these crops. Specifically, the thickness was set to about 7 cm so that the nutrient water could be sufficiently retained and the water content in the upper layer portion and the lower layer portion of the culture medium could be made approximately equal. And the width | variety was set so that the width | variety when a culture medium was accommodated in the cultivation container in the state of being grinded may be about 60 cm. The length was set to about 30 m.

JP-A-8-37966 Japanese Patent Laid-Open No. 10-313686

  However, when the present inventor conducted various experiments, it was found that when cultivating root vegetables, fruit vegetables, and leaf vegetables, the preferred sizes for the cultivation bed are different.

  For example, in the case of root vegetables, a cultivation bed having a size of about 36 cm wide and 14 cm thick is preferable. By using a cultivation bed of such a size, rhizomes and roots can be sufficiently grown in the medium.

  On the other hand, in the case of fruit vegetables, a cultivation bed having a size of about 36 cm in width and about 7 cm in thickness is preferable. By using the cultivation bed of such a size, the water saving amount can be reduced and water-saving cultivation preferable for fruits and vegetables can be performed.

  In the case of leaf vegetables, a cultivation bed having a width of about 60 cm and a thickness of about 7 cm is preferable. By using a cultivation bed of such a size, leaves can be widely grown on the surface of the medium.

  As described above, it has been found that it is preferable to change the size of the cultivation bed depending on the type of crop, but preparing a cultivation bed of a different size is cumbersome and costly, so with one kind of cultivation bed, There has been a demand for a cultivation bed that can be appropriately changed to a cultivation bed having a preferred size corresponding to the type of crop to be cultivated. Moreover, when cultivating mushrooms, there is a similar problem, and a cultivation bed having a preferable size corresponding to the type of mushrooms has been demanded.

  In the above description, the case where sand soil is used as the soil has been described as an example, but there is a similar problem when soil other than sand soil is used.

  Then, this invention provides the cultivation container which can form the cultivation floor of the preferable size corresponding to the kind of the crop which wants to grow, the cultivation floor formed using the said cultivation container, and the cultivation apparatus using the said cultivation. This is the issue.

  As a result of intensive studies, the present inventor has found that the above problems can be solved by the invention shown in the following claims, and has completed the present invention.

The invention described in claim 1
A cultivation container for storing cultivation soil,
Comprising a polygonal floor, and side walls provided on each side of the floor;
It is a cultivation container characterized by being configured so that the size of the floor can be changed.

  In the invention of this claim, since the floor of the cultivation container is composed of a floor whose size can be changed so that the size of the cultivation soil can be changed, the size of the cultivation soil can be changed by changing the floor size. Can be freely changed. For this reason, although it is one type of cultivation floor, it becomes possible to change suitably to the cultivation floor of the preferable size corresponding to the kind of the crop which wants to grow, and suppresses the complexity which prepares the cultivation floor of a different size, and an increase in cost. be able to.

The invention described in claim 2
The cultivation container according to claim 1, wherein the floor has a substantially rectangular shape.

  Among polygonal shapes, a substantially rectangular cultivation container is preferable because the size of the cultivation floor can be changed more easily. Among the substantially quadrangular shapes, square and rectangular shapes are more preferable.

  Note that the substantially quadrangular shape is not limited to a geometrically accurate quadrangular shape, but includes a case where a corner portion has a chamfered portion.

The invention according to claim 3
The floor is substantially rectangular;
It is comprised so that the width | variety of the said floor defined by the distance between the two side walls of the long side of the said floor can be changed, The cultivation container of Claim 2 characterized by the above-mentioned.

  In the invention of this claim, since the floor of the cultivation container is composed of a floor whose width can be changed so that the width of the cultivation soil can be changed, the width of the cultivation soil can be changed by changing the width of the floor. Can be freely changed. For this reason, although it is one type of cultivation floor, it becomes possible to change suitably to the cultivation floor of the preferable width corresponding to the kind of the crop which wants to grow, and suppresses the complexity which prepares the cultivation floor of a different width, and the rise in cost. be able to.

  In addition, since the long side is usually much longer than the short side, the area of the cultivation bed can be greatly changed by making the width changeable as described above. For this reason, the effect of this invention is exhibited more notably.

The invention according to claim 4
The substantially rectangular floor and the side walls provided on a pair of opposite sides of the floor are integrally formed by a single long cloth,
The floor and the side walls are formed by supporting the cloth by at least two pairs of rod-shaped frames that are arranged in parallel to each side of the pair of sides and are movable up and down and left and right. The cultivation container according to claim 2.

  In the invention of this claim, the floor and the side walls are formed by supporting the cloth by at least two pairs of rod-shaped frames that can move up and down and left and right. The width and thickness of the cultivation container can be freely changed simply by moving the rod-shaped frame. Moreover, since the cloth has air permeability, the crop root is not damaged by excessive moisture, and sufficient oxygen is supplied to the crop root.

The invention described in claim 5
The substantially rectangular floor and the side wall on the long side are integrally formed by one long cloth,
The floor and the side walls on the long side are formed by supporting the cloth by at least four bar-shaped frames arranged in parallel with the long side of the floor and movable up and down and left and right. The cultivation container according to claim 3.

  In the invention of this claim, the floor and the cloth are supported by at least four rod-shaped frames which are arranged in parallel with the long side of the substantially rectangular floor and are movable in the vertical and horizontal directions. Since the side wall on the long side is formed, the width and thickness of the cultivation container can be freely changed by simply moving each rod-shaped frame while having a simple structure and low cost. Moreover, since the cloth has air permeability, the crop root is not damaged by excessive moisture, and sufficient oxygen is supplied to the crop root.

The invention described in claim 6
A substantially rectangular floor, comprising a first container member and a second container member having side walls provided on three sides of the floor;
The first container member and the second container member are fitted with each other's floors and opposite side walls of each container member,
It is comprised so that the width | variety of the said floor can be changed by sliding the said 1st container member and 2nd container member which were fitted mutually, It is a cultivation container of Claim 2 characterized by the above-mentioned. .

  In the invention of this claim, since the first container member and the second container member having the substantially square floor and the side walls provided on the three sides of the floor are fitted to each other to form a cultivation container, the fitting The width of the culture medium can be freely changed by sliding the container members to be slid in the width direction.

The invention described in claim 7
A first container member and a second container member having a substantially rectangular floor, a pair of side walls provided on the short side of the floor, and a side wall provided on one long side;
The first container member and the second container member are fitted with each other between the floors and the side walls provided on the short side,
It is comprised so that the width | variety of the said floor can be changed by sliding the said 1st container member and 2nd container member which were fitted mutually, It is a cultivation container of Claim 3 characterized by the above-mentioned. .

  In the invention of this claim, the first container member and the second container further having a substantially rectangular floor, side walls provided on both short sides of the floor, and side walls provided on the one long side. Since the container members are fitted to each other to form a cultivation container, the width of the medium can be freely changed by sliding the fitted container members in the width direction.

The invention according to claim 8 provides:
The cultivation container according to any one of claims 1 to 7, wherein the height of the side wall is configured to be changeable.

  In the present invention, since the height of the side wall can be changed, the size and thickness can be changed, and the degree of freedom in changing the size is further improved. It can easily cope with cultivation.

The invention according to claim 9 is:
A cultivation bed in which cultivation soil is accommodated in the cultivation container according to any one of claims 1 to 8.

  Since the cultivation container described above is a cultivation container whose size can be freely changed, the cultivation bed having a preferable size corresponding to the type of the crop to be cultivated can be obtained by simply storing the cultivation soil in such a cultivation container. Can be easily formed freely.

The invention according to claim 10 is:
10. The cultivation bed according to claim 9, wherein the cultivation soil is sandy soil or sandy artificial cultivation soil.

  The soil used in the present invention is not particularly limited. As described above, sandy soil and sand-like artificial soil form voids in the culture medium, so that the nutrient water necessary for the crop is sufficiently retained. In addition, it is preferable because sufficient oxygen can be supplied to the crop root, the crop root does not suffer from excessive moisture damage, and the rhizosphere portion of the medium can be in a sufficient oxygen state.

  In addition, sandy soil and sand-like artificial soil can be used for a long period of time because they do not cause continuous cropping troubles even after repeated use by washing with water, and the amount of trace components does not change.

  The effects of the present invention can be remarkably exhibited when using such sandy soil or sandy artificial soil as the soil and cultivating various crops throughout the year.

The invention according to claim 11
A plant cultivation device comprising the cultivation bed according to claim 9 or 10 and a irrigation device for supplying liquid fertilizer to the cultivation floor.

  In the invention of this claim, since a cultivation bed of a size suitable for each of various crops can be provided using one kind of cultivation container, it is combined with an irrigation device that supplies liquid fertilizer to the cultivation floor. Thus, crops according to the season can be efficiently cultivated throughout the year without distinguishing between root vegetables, fruit vegetables, and leaf vegetables. Similarly, mushrooms can be cultivated efficiently.

  ADVANTAGE OF THE INVENTION According to this invention, the cultivation container which can form the cultivation floor of the preferable size corresponding to the kind of crop which wants to grow, the cultivation bed formed using the said cultivation container, and the cultivation apparatus using the said cultivation are provided. can do.

It is a perspective view which shows typically the outline | summary of the cultivation floor of one embodiment of this invention. It is a cross-sectional view which shows typically the shape of the cultivation bed of one embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows typically the cultivation floor of one embodiment of this invention, Comprising: (a) A figure is a figure which shows the state which grows root vegetables and (b) figure is leaf vegetables. It is a side view which shows typically the shape of the cultivation floor of other embodiment of this invention. It is a perspective view which shows typically the structure of the cultivation apparatus of one embodiment of this invention.

  Hereinafter, the present invention will be described based on embodiments. In the present embodiment, a cultivation container having a rectangular floor will be described as a specific example.

[1] Cultivated floor <1> First embodiment The cultivated floor according to the present embodiment has a floor and a side wall provided on the long side of the floor formed of a single cloth, and the width of the floor. And it is a cultivation floor provided with the cultivation container which can adjust the height of the side wall provided in the long side to arbitrary dimensions.

1. Outline First, the outline of the cultivation floor will be explained. FIG. 1 is a diagram schematically showing an outline of a cultivation floor according to the present embodiment, and shows that the cultivation floor 1 is placed on a gantry 51 as an isolation means and is isolated from the ground (soil). ing. 2 is a cultivation container.

  As shown in FIG. 1, the rectangular floor 2 a of the cultivation container 2 and the side walls 2 b provided on the long sides of the floor 2 a are integrally formed by a single long cloth 21. The floor 21a and the side wall 2b are formed by supporting the cloth 21 by a pair of the first frame 22 and the second frame 23 which are arranged in parallel with the long side and can move vertically and horizontally.

  For this reason, the width | variety and thickness of a cultivation container can be freely changed by moving each of the 1st flame | frame 22 and the 2nd flame | frame 23. FIG. Specifically, the width of the floor 2a can be adjusted to an arbitrary width by adjusting the interval in the width direction of the two first frames 22 and the interval in the width direction of the two second frames 23. Further, the height of the side wall 2b can be adjusted to an arbitrary height by adjusting the vertical distance between the first frame 22 and the second frame 23. In addition, the width | variety of the 1st frame 22 and the width | variety of the 2nd frame 23 do not need to correspond, and the width | variety may differ on the upper surface and lower surface of the cultivation container 2. FIG. In addition, 2c is a side wall provided on the short side of the floor 2a.

  Thus, in this Embodiment, since the width | variety and thickness of the cultivation container 2 can be changed freely, depending on the kind of the crops to be cultivated, by storing the cultivation soil in the cultivation container 2 by sliding. The cultivation bed 1 having a suitable width and thickness can be produced with a simple structure at a low cost.

  In addition, the mesh is stretched inside the cultivation container 2, so that the cultivation soil does not leak from the gaps at the four corners formed when the width of the floor 2a is expanded. In addition, the metal net is laid under the floor 2a, or a plurality of frames are passed in the width direction of the floor 2a so as not to be bent by the weight of the soil in which the cloth floor 2a is accommodated. Has been.

  FIG. 2 shows a state in which the width and depth (height) of the cultivation container are adjusted for root vegetables, fruit vegetables, and leaf vegetables, respectively. FIG. 2 is a cross-sectional view schematically showing the shape of the cultivation floor of the present embodiment. FIG. 2 (a) is for root vegetables, FIG. 2 (b) is for fruit vegetables, and FIG. 2 (c) is leaf vegetables. The cultivation container and cultivation soil for are shown. A cultivation floor is formed by storing the cultivation soil 3 in a cultivation container.

  As described above, the cultivation floor for root vegetables and fruit vegetables does not require a wide width, and a thick cultivation floor is preferred for root vegetables. On the other hand, for leafy vegetables, a thick cultivation bed is not required, and a wide cultivation bed is preferable.

  For this reason, the width of the floor 2a is adjusted to 36 cm and the height of the side wall 2b (depth of the cultivation container) is adjusted to 14 cm for the root vegetables in FIG. 2 (a), and the floor for the fruit vegetables in FIG. 2 (b). The width of 2a is adjusted to 36 cm and the height of the side wall 2b is adjusted to 7 cm. For leafy vegetables in FIG. 2 (c), the width of the floor 2a is adjusted to 60 cm and the height of the side wall 2b is adjusted to 7 cm.

  The state of the cultivation floor planted with root vegetables and leaf vegetables is shown in FIGS. 3 (a) and 3 (b), respectively. Root vegetables are planted in a single row, and the cultivation floor has a thick soil thickness, which is suitable for the growth of rhizomes. In the case of leaf vegetables, three rows are planted, and the cultivation floor has a thin soil thickness. The area that can be cultivated is widened. Thereby, root vegetables and leaf vegetables can be cultivated more efficiently. In addition, it is preferable to plant fruits and vegetables such as tomatoes in a row, and by reducing the width of the cultivation floor and making the thickness of the culture soil as thin as that for leaf vegetables, compared to the cultivation floor for leaf vegetables. For example, a irrigation amount of 1/2 is sufficient, and a cultivation bed suitable for water-saving cultivation can be easily prepared.

  Thus, in this Embodiment, since cloth is supported by the 1st frame and the 2nd frame and a cultivation container is formed, as mentioned above, cultivation of the preferred size which differs in root vegetables, leaf vegetables, and fruit vegetables The floor can be easily provided at a low cost with one kind of cultivation container.

2. The cloth 21 for the cultivation container The cloth 21 for the cultivation container 2 is not particularly limited as long as it has sufficient strength to receive the weight of the planted soil. A cloth having a crease of about 1 mm is preferable.

3. There are no particular restrictions on the type of cultivated soil, but sand or sand-like artificial cultivated soil is preferably used, and the sand is widely used in so-called civil engineering architecture with a size of about 28 to 100 mesh. A mixture with fine sand or coral sand is preferred. It is preferable that the culture medium is ground and tightened and filled, has a porosity of 30 to 40%, has good ventilation and water permeability, and has a structure suitable for preventing excessive moisture and supplying oxygen.

<2> Second Embodiment In this embodiment, the cultivation container is formed by fitting two members (container members) divided in the width direction, and the two container members are slid relative to each other. This is an embodiment in which a cultivation container in which the length of the floor and the side wall on the short side is variable is used.

  FIG. 4 is a side view schematically showing the structure of the cultivation container of the cultivation floor of the present embodiment. The cultivation container 41 is composed of a first container member 42 and a second container member 43. The first container member 42 and the second container member 43 have a structure in which the cultivation container 2 of FIG. 1 is divided into two at the central part of the short side wall 2c facing each other, and the second container member 43 is The first container member 42 and the second container member 43 are made to have dimensions slightly smaller than the first container member 42 so that they can be fitted inside the first container member 42. 43a and the side walls 42c and 43c provided on the short side are overlapped with each other, and the side walls 42b and 43b provided on the long side are opposed to each other.

  The 1st container member 42 and the 2nd container member 43 can be slid mutually in the width direction, and the width of the floor of the cultivation container 41, ie, the width of the culture medium, can be adjusted by sliding. Therefore, the width of the cultivation container 41 can be freely adjusted over a wide range, and can be easily applied to various crops. Note that a mesh is stretched around the inside of each of the first container member 42 and the second container member 43 as in the first embodiment.

[2] Cultivation device Next, the cultivation device will be described. The cultivation apparatus according to the present embodiment includes the cultivation floor described in the first embodiment or the second embodiment, an isolation unit that isolates the cultivation floor from the ground (soil), and a irrigation apparatus.

  FIG. 8 is a perspective view schematically showing the configuration of the cultivation apparatus of the present embodiment. In FIG. 8, 1 is a cultivation floor, 51 is a mount as an isolation means, and 52 is a watering device.

  The cultivation floor 1 is installed on the mount 51. The height of the gantry 51 is set to be low when cultivating fruit and vegetables extending upward, for example, and is set to be high when cultivating root vegetables and leaf vegetables so as to facilitate the work.

  The irrigation device 52 is provided with a trickle pipe (main pipe) 53, a drip irrigation tube 54, an overhead wire 55, and an irrigation device main body 56. The trickle pipe 53 is provided with a valve 53a, and the irrigation device main body 56 is provided with liquid fertilizer. A tank 56a, a dilution device 56b, a valve 56c, and a control device 56d are provided.

  The trickle pipe 53 is a pipe having an inner diameter of several centimeters, and the main part is installed along the longitudinal direction below the cultivation container floor. A main portion of the trickle pipe 53 is provided with an opening having a diameter of 2 mm at a predetermined interval, specifically, an interval of 10 cm, and a drip irrigation tube 54 having an inner diameter of 1 mm and an outer diameter of 2 mm is connected to the opening. The drip irrigation tube 54 is alternately divided into left and right alternately, led to the upper side of the cultivation floor 1 so as to surround the side wall of the cultivation floor 1 from the outside, and the other end is suspended on an overhead line 55 such as a piano wire.

  The end of the trickle pipe 53 is closed, and the other end is connected to the irrigation apparatus main body 56 via a valve 53a. In the irrigation device main body 56, the liquid fertilizer is supplied from the liquid fertilizer tank 56a, and diluted with the water taken in from the outside through the valve 56c in the dilution device 56b. The control device 56d controls the valve 56c to adjust the flow rate of water, controls the dilution device 56b to adjust the dilution rate of the liquid fertilizer, prepares nutrient water, and supplies it to the trickle pipe 53.

  The supplied nutrient water is adjusted to a predetermined flow rate by the valve 53 a and is drip-irrigated onto the cultivation bed 1 via the drip-irrigation tube 54. It should be noted that the trickle pipe 53 is sufficiently thick and there is no pressure loss in the trickle pipe 53, so that nourishing water is evenly drip irrigated from all the drip irrigation tubes 54.

  Since the cultivation apparatus of the present embodiment uses a cultivation bed that can freely change the width and thickness of the cultivation soil, there is no need to provide cultivation beds of various sizes according to the type of crop, and space saving is achieved. Can be achieved. Moreover, water and fertilizer can be saved by adjusting the amount of irrigation according to the width and depth of the cultivation floor. Moreover, the cultivation apparatus of this Embodiment can be applied also to cultivation about mushrooms.

  In the present embodiment, the cultivation container having a rectangular floor has been described as a specific example. However, the present invention is not limited to this, and the same can be applied to a cultivation container having a square or polygonal floor.

  As described above in detail, according to the present embodiment, even when the type of crop to be cultivated is changed, there is no waste of space or nutrient water, and the width and thickness of the medium can be set for any crop. It is possible to provide a cultivation floor and a cultivation apparatus that can have a suitable width and thickness.

  The present invention is not limited to the embodiment described above. Various modifications can be made to the above-described embodiment within the same and equivalent scope as the present invention.

DESCRIPTION OF SYMBOLS 1 Cultivation floor 2, 41 Cultivation container 2a, 42a, 43a Floor 2b, 2c, 42b, 42c, 43b, 43c Side wall 3 Culture soil 21 Cloth 22 1st frame 23 2nd frame 42 1st container member 43 2nd container member 51 Mounting stand (Isolation means)
52 Irrigation device 53 Trickle pipe (main pipe)
53a, 56c valve 54 drip irrigation tube 55 overhead wire 56 irrigation device body 56a liquid fertilizer tank 56b dilution device 56d control device

Claims (11)

A cultivation container for storing cultivation soil,
Comprising a polygonal floor, and side walls provided on each side of the floor;
The cultivation container characterized by being comprised so that the size of the said floor can be changed.   The cultivation container according to claim 1, wherein the floor is substantially rectangular. The floor is substantially rectangular;
The cultivation container according to claim 2, wherein the width of the floor determined by the distance between two side walls on the long side of the floor is changeable. The substantially rectangular floor and the side walls provided on a pair of opposite sides of the floor are integrally formed by a single long cloth,
The floor and the side walls are formed by supporting the cloth by at least two pairs of rod-shaped frames that are arranged in parallel to each side of the pair of sides and are movable up and down and left and right. The cultivation container according to claim 2. The substantially rectangular floor and the side wall on the long side are integrally formed by one long cloth,
The floor and the side walls on the long side are formed by supporting the cloth by at least four bar-shaped frames arranged in parallel with the long side of the floor and movable up and down and left and right. The cultivation container according to claim 3. A substantially rectangular floor, comprising a first container member and a second container member having side walls provided on three sides of the floor;
The first container member and the second container member are fitted with each other's floors and opposite side walls of each container member,
The cultivation container according to claim 2, wherein the width of the floor can be changed by sliding the fitted first container member and second container member to each other. A first container member and a second container member having a substantially rectangular floor, a pair of side walls provided on the short side of the floor, and a side wall provided on one long side;
The first container member and the second container member are fitted with each other between the floors and the side walls provided on the short side,
The cultivation container according to claim 3, wherein the width of the floor can be changed by sliding the fitted first container member and the second container member to each other.   The cultivation container according to any one of claims 1 to 7, wherein the height of the side wall is configured to be changeable.   A cultivation bed, wherein the cultivation soil is accommodated in the cultivation container according to any one of claims 1 to 8.   The cultivation bed according to claim 9, wherein the cultivation soil is sandy soil or sandy artificial cultivation soil.   A cultivation apparatus comprising: the cultivation bed according to claim 9 or 10; and a irrigation device for supplying liquid fertilizer to the cultivation floor.

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