JP5838031B2 - Plant cultivation apparatus and plant cultivation method - Google Patents

Description

  The present invention relates to a plant cultivation apparatus and a plant cultivation method excellent in workability.

  As a conventional plant cultivation apparatus, as shown in Patent Document 1, there is one having a plurality of stages of cultivation shelves, and a storage tank for storing nutrient solution is provided on the cultivation shelf, A plurality of cultivation plates are arranged in a line. A rail member is provided between the storage tank and the cultivation plate, and the cultivation plate is placed on the storage tank from the next and sent out without the operator moving. It is configured so that it can be installed.

  However, when removing the cultivation plate arranged in the upper part of the storage tank or when harvesting the cultivated plant, it is necessary for the operator to move to the position of the cultivation plate to be removed and remove or harvest it. The more plates are used, the more labor and effort is required for the removal or harvesting operation.

JP 2006-262750 A

  Then, this invention is made | formed to solve the said problem, and makes it the main intended subject to improve the workability | operativity of the removal operation | work of the culture | cultivation plate arrange | positioned in a line form, and the harvesting operation | work of a plant. It is.

  That is, the plant cultivation apparatus according to the present invention is a plant cultivation apparatus for cultivating a plant by arranging a plurality of cultivation plates each having a substantially rectangular plate shape holding a plant in a row, and is located on the front end side in the row direction. One end is connected to the cultivation plate, and has a string-like body extending toward the proximal side along the row direction, and the plurality of cultivation plates are configured to be movable toward the proximal side along the row direction. The plurality of cultivation plates are moved to the base end side along the row direction by pulling the string-like body to the base end side.

  If it is such, since the operator on the base end side can move the cultivation plate sequentially to the base end side by pulling the string-like body to the base end side, the cultivated plant is one place It becomes possible to collect by. As a result, work efficiency can be improved. Moreover, even if it is a case where the plate for cultivation is arrange | positioned at the upper and lower stages, an altitude work can be implemented safely. Furthermore, when arranging a plurality of rows of cultivation plates, a working space for directly operating each cultivation plate is required, but in the present invention, the working space is made unnecessary because it is drawn toward the base end side. Each row can be arranged closely together. As a result, the limited cultivation space can be effectively utilized and a large amount of plants can be cultivated. In addition, it is possible to clean the nutrient solution tank in which the plant is hydroponically moved by moving the root of the plant.

  It is desirable to have a mounting member that is detachably mounted on the front side edge of the cultivation plate located on the front side in the row direction, and one end of the string-like body is connected to the mounting member. Since the string-like body is connected to the cultivation plate through the mounting member in this way, the tensile force from the string-like body can be dispersed, and the cultivation plate is made of a brittle material such as a foaming resin. Even if it becomes, damage can be prevented. Moreover, since a mounting member can be attached or detached to the front end side edge part of a cultivation plate, all the cultivation plates can use a common thing. Furthermore, since the string-like body can be removed from the cultivation plate and maintained and stored, it is excellent in handleability.

  There are two or more cultivation plate rows composed of a plurality of cultivation plates arranged in the row shape in the width direction orthogonal to the row direction, and the mounting member is for two or more cultivations arranged in the width direction. It is desirable to have a length straddling the plate and to be attached to the front edge portion of the cultivation plate located on the distal side in the row direction in the two or more rows of cultivation plates. If this is the case, the cultivation plate rows arranged in two or more rows in the width direction can be drawn at a time, so that workability can be improved.

  The force of pulling the string-like body to the proximal side acts on the cultivation plate on the distal side, and the cultivation plate presses the plurality of cultivation plates in the row direction sequentially to the proximal side, so that the whole is proximal. Will be moved to. However, since resistance to movement is exerted on each cultivation plate, the connecting edge portions of adjacent cultivation plates may be lifted upward and cannot be moved smoothly. In order to solve this problem, it is desirable that the string-like body has a pressing portion that prevents the connecting edge portions of two cultivation plates adjacent in the row direction from being lifted. If this is the case, lifting of the connecting edge of the adjacent cultivation plates is prevented by the holding portion, so that the posture of the cultivation plate in the row direction is prevented from collapsing, and the proximal side is operated by operating the string-like body. Smooth movement can be secured. In addition, as for the position which provides a pressing part, it is desirable to provide in the connection edge part of several sheets (2-5 sheets) from the front end side, and it is preferable to provide a pressing part in multiple places as needed.

  As a specific example of the simple configuration of the pressing portion, the string-like body is disposed on the back side of the plurality of cultivation plates, and the pressing portion is a connecting edge of the two adjacent cultivation plates. It is desirable that the bridge body provided so as to straddle the part surface side is configured by attaching the string-like body at the connecting edge of the two adjacent cultivation plates. Here, to attach the string-like body to the bridge body, the string-like body is directly connected to the bridge body, the string-like body is hung around the bridge body, and the string-like body is connected to the bridge body via another member. Connection etc. are included.

  In order to accurately and reliably arrange the plurality of cultivation plates in a row, it is desirable that the plurality of cultivation plates be placed on rail members extending in the row direction.

  In order to simplify the configuration of the plant cultivation apparatus, it is desirable that the plurality of cultivation plates are supported by being floated on a nutrient solution.

  The plant harvesting method according to the present invention is a plant harvesting method in which a plurality of roughly rectangular plate-shaped cultivation plates that hold plants are arranged in a line, and the plants cultivated thereby are harvested. One end is fixed to the plate for cultivation located on the distal end side, a string-like body is extended to the proximal end side along the row direction, and the plural pieces are drawn by drawing the string-like body toward the proximal end side. The cultivation plate is moved to the base end side along the row direction.

  Further, the plant cultivation method according to the present invention is a plant cultivation method for cultivating a plant by arranging a plurality of cultivation plates each having a substantially rectangular plate shape holding a plant in a row, and in the plant planting step, one cultivation One end of a string-like body is connected to the plate for cultivation, the cultivation plate is pushed out to the distal end side, and a plurality of cultivation plates are arranged in a row one after another, and in the plant harvesting process, the cultivation plate on the proximal end side And the operation of pulling the string-like body toward the proximal end is repeated.

  According to the present invention having such a configuration, it is possible to improve the workability of the cultivation plate removing operation and the plant harvesting operation arranged in rows.

The front view which shows typically the structure of the plant cultivation apparatus which concerns on one Embodiment of this invention. The side view which shows typically the structure of the plant cultivation apparatus of the embodiment. The top view and AA sectional view taken on the line which show the plate for cultivation of the embodiment. The top view and side view which show the detailed structure of the cultivation shelf of the embodiment. Sectional drawing which shows the structure of the cultivation shelf of the embodiment typically. The schematic diagram which shows the plate installation process for cultivation of the embodiment. The schematic diagram which shows the plate removal process for cultivation of the embodiment. The schematic diagram which shows the plate for cultivation and the string-like body divided into several groups. The schematic diagram which shows the shift | offset | difference prevention mechanism of deformation | transformation embodiment. Sectional drawing which shows the nutrient solution storage container of deformation | transformation embodiment. Sectional drawing which shows the nutrient solution storage container of deformation | transformation embodiment.

  An embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIG.1 and FIG.2, the plant cultivation apparatus 100 which concerns on this embodiment installs the several plate 2 for cultivation which makes the single shape holding the plant which should be grown, and the said plate for cultivation 2 concerned. A plurality of cultivation shelves 3. Each cultivation shelf 3 is provided with a nutrient solution supply mechanism 4 for supplying a nutrient solution to the plant.

  As shown in FIG. 3, the cultivation plate 2 has a substantially rectangular plate shape in plan view, and the side portions 2 a and 2 b (longitudinal side portions) forming one pair thereof have plant stem portions. A slit portion 21 is formed for inserting and fixing the plant to the plate 2. A plurality of slit portions 21 are formed on each of the long side portions 2a and 2b, and the slit portions 21 provided on both long side portions 2a and 2b are formed at different positions in the longitudinal direction. In addition, the slit part 21 provided in both long side parts 2a and 2b may be formed in the mutually same position in the longitudinal direction. Moreover, you may make it vary the length of the slit part 21 provided in each longitudinal side part 2a, 2b.

  The cultivation plate 2 is disposed on a nutrient solution storage container 41 of a nutrient solution supply mechanism 4 provided on the cultivation shelf 3, and specifically, both longitudinal end portions 2 c and 2 d (short sides). The side portions are arranged in a row so as to be in contact with each other. Moreover, the recessed part 22 for engaging with the rail member 41R mentioned later and sliding is formed in the back surface of the plate 2 for cultivation.

  As shown in FIGS. 2 and 4, the cultivation shelf 3 is formed in multiple stages in the vertical direction, and each cultivation shelf 3 has a substantially long shape extending in a substantially horizontal direction. The cultivation shelf 3 is supported by a support column 6 that is erected in the vertical direction. And the nutrient solution supply mechanism 4 is provided in the upper surface of this cultivation shelf 3, and the light source 5 for irradiating light to the cultivation shelf under the said cultivation shelf is provided in the lower surface (refer FIG. 2). ).

  The nutrient solution supply mechanism 4 includes a nutrient solution storage container 41 that is installed on the cultivation shelf 3 and stores the nutrient solution, and a nutrient solution supply unit 42 that supplies or circulates the nutrient solution to the nutrient solution storage container 41. The nutrient solution supply unit 42 includes a nutrient solution tank 421, a nutrient solution pipe 422 for circulating the nutrient solution in the nutrient solution tank 421, and a pump (not shown) that feeds the nutrient solution into the nutrient solution pipe 422. ). The nutrient solution piping 422 is connected to the nutrient solution tank 421 and the nutrient solution storage container 41.

  As shown in FIGS. 4 and 5, the nutrient solution storage container 41 is provided along the longitudinal direction in the same manner as the cultivation shelf 3, and is a substantially long upper opening that has substantially the same shape as the cultivation shelf 3. It is what has. And a pair of longitudinal direction edge parts 41a and 41b which form the upper opening of this nutrient solution storage container 41 comprise the rail member 41R. This rail member 41 </ b> R engages with the recess 22 formed on the back surface of the cultivation plate 2. In addition, in this embodiment, the support part 411 which contacts the center part of the cultivation plate 2 in the center part of the nutrient solution storage container 41, and prevents the bending or bending of the cultivation plate 2 is formed. In the present embodiment, the string-like body 7 is disposed in a recess formed on the upper surface of the support portion 411.

  And in this plant cultivation apparatus 100, it is in cultivation plate 2 located in the foremost side (left side in Drawing 4) of the row direction (longitudinal direction) of a plurality of cultivation plates 2 arranged in a line along the longitudinal direction. A string 7 is connected.

  As shown in FIG. 4, the string-like body 7 has one end connected to the state-of-the-art cultivation plate 2 and is provided extending to the base end side in the row direction. As the string-like body 2, for example, a rope, a wire, or a teg is used.

  The string-like body 7 is detachably connected to the front end side edge 2c of the state-of-the-art cultivation plate 2, and the back side of the plurality of cultivation plates 2 along the row direction, that is, in the nutrient solution storage container 41 And extending to the base end side in the column direction.

  And in this embodiment, when connecting the string-like body 7 to the state-of-the-art cultivation plate 2, the attachment member 8 is interposed and connected. Specifically, the string-like body 7 is fixed to an attachment member 8 that is detachably attached to the distal end side edge 2c of the state-of-the-art cultivation plate 2.

  As shown in FIG. 4, the mounting member 8 has a length equivalent to the short side portion 2 c of the cultivation plate 2 or a slightly shorter length than that, and its longitudinal cross section is substantially It has a letter shape or a partial arc shape. Then, the mounting member 8 is mounted on the front end side edge 2 c of the cultivation plate 2.

  Then, in a state where the mounting member 8 is mounted on the cultivation plate 2, an opening is formed through which the bottom of the concave portion 23 formed on the front end side edge 2 c of the cultivation plate 2 penetrates the front and back. The string-like body 7 is connected to the mounting member 8 so as to pass through the opening. In the present embodiment, one end of the string-like body 7 is a connection portion 71 formed in a ring shape into which the mounting member 8 is inserted. And after inserting the attachment member 8 in the connection part 71 which makes this ring shape, the string-like body 7 is connected to the state-of-the-art cultivation plate 2 by attaching the attachment member 8 to the distal end side edge 2c. The In addition to providing the ring-shaped connection portion 71 on the string-like body 7, various connection modes such as binding the string-like body to the mounting member can be taken. It is also conceivable that the mounting member 8 and the string-like body 7 are integrated.

  Thus, since the string-like body 7 is fixed to the cultivation plate 2 via the mounting member 8, the tensile force from the string-like body 7 is dispersed and applied to the cultivation plate 2, and even if cultivation is performed. Even if the plate 2 is made of a fragile material such as a foamable resin, the breakage can be prevented. Moreover, since the mounting member 8 can be attached to and detached from the front end side edge 2c of the cultivation plate 2, all the cultivation plates 2 can be used in common. Furthermore, since the string-like body 7 can be attached to and detached from the cultivation plate 2 by the mounting member 8, the cultivation plate 2 and the string-like body 7 can be easily stored, and maintenance such as cleaning operations thereof can be easily performed. can do.

  As shown in FIG. 4, the string-like body 7 is provided with a pressing portion 9 that prevents the connection edge portions 2 c and 2 d of the two cultivation plates 2 adjacent in the row direction from lifting.

  The pressing portion 9 is connected to the bridge body 91 provided so as to straddle the surface sides of the connecting edge portions 2c and 2d of the two adjacent cultivation plates 2 and the connecting edge portion of the two adjacent cultivation plates 2 It is comprised by connecting the string-like body 7 in 2c, 2d. Specifically, the bridge body 91 having a substantially rod shape is arranged so as to be substantially orthogonal to or inclined with respect to the connecting edge portions 2c and 2d of the two adjacent cultivation plates 2, and the bridge body 91 has a string-like body. 7 is formed by passing the string-like body 7 to the surface side through the recess 23 formed in the connecting edge portions 2c and 2d, and disposing the bridge body 91 so as to pass below the string-like body 7. Yes. With this configuration, when the string-like body 7 is pulled, the pulling force becomes a pressing force applied to the bridge body 91 from the top to the bottom, and the connecting edges 2c and 2d are pushed downward and lifted. Is prevented. Accordingly, the posture of the cultivation plate 2 in the row direction is prevented from collapsing, and smooth movement toward the base end side can be ensured by operating the string-like body 7. In addition, as a shape of the bridge body 91, it engages with both adjacent cultivation plates such as a cross shape such as a cross shape, a Y shape, a T shape or an H shape in addition to a rod shape. Anything to do.

  In particular, when the string-like body 7 is connected to the state-of-the-art cultivation plate 2 and pulled to the proximal end side, the connecting edge of the second to fifth cultivation plates 2 from the state-of-the-art cultivation plate 2 Therefore, in the present embodiment, the pressing portions 9 are provided on the connecting edge portions 2c and 2d of the plurality of pieces (second to fifth pieces) from the state-of-the-art cultivation plate 2. In addition, the holding | suppressing part 9 may be provided for each connection edge part 2c, 2d of the some plate 2 for cultivation, and may be provided intermittently.

  Next, a plant cultivation method using the plant cultivation apparatus 100 configured as described above will be described with reference to FIGS. 6 and 7. Specifically, a plant planting process (cultivation plate installation process) and a plant harvesting process (cultivation plate removal process) will be described.

  The plant planting process is a process in which the cultivation plate 2 to which a plant is attached is installed in the cultivation shelf 3, specifically, the nutrient solution storage container 41, and the plant is planted in the plant cultivation apparatus 100. Specifically, in this step, as shown in FIG. 6, first, one end of the string-like body 7 is connected to the front end side edge 2 c of one cultivation plate 2 via the mounting member 8. And the plate 2 for cultivation is mounted in the predetermined position (specifically the base end side of the nutrient solution storage container 41) of the nutrient solution storage container 41 ((A) of FIG. 6). Next, the cultivation plate 2 on which another cultivation plate 2 has been placed first is placed on the proximal end side of the nutrient solution storage container 41 while being pushed forward ((B) of FIG. 6). In this way, the cultivation plates 2 are placed one after another, and a plurality of cultivation plates 2 are placed until the cultivation plate 2 on the front end side stops ((C) to (E) in FIG. 6). When the cultivation plate 2 is placed, the string 7 is positioned below each cultivation plate 2, and the proximal end of the string 7 is the proximal end of the nutrient solution storage container 41. To be on the side. Thus, the plurality of cultivation plates 2 are arranged in a row on the nutrient solution storage container 41. Further, at the stage where the cultivation plate 2 is sequentially placed, a predetermined number of sheets from the most advanced cultivation plate 2 (between the second and third sheets in FIG. 6, specifically, the second sheet). The connecting edge 2d and the third connecting edge 2c) are provided with pressing parts 9 ((D) in FIG. 6).

  After arrange | positioning in line form, the plant of the plate 2 for cultivation is grown using the nutrient solution supply mechanism 4 and the light source 5. FIG.

  And after a plant grows, a plant harvesting process is performed. This plant harvesting step is a step of removing the grown cultivation plate 2 from the cultivation shelf 3, specifically, the nutrient solution storage container 41 to harvest the plant. Specifically, in this step, as shown in FIG. 7, the cultivation plate 2 on the most proximal side is first removed ((A) of FIG. 7). And by pulling the string-like body 7 on the proximal end side toward the proximal end side ((B) of FIG. 7), the remaining cultivation plate 2 on the nutrient solution storage container 41 is moved to the proximal end side (FIG. 7 (C)). Next, the cultivation plate 2 on the most proximal end side is removed, and the string-like body 7 is drawn toward the proximal end side ((D) and (E) in FIG. 7). In this way, the cultivation plate 2 on the most proximal end side is removed, and the cultivation plate 2 is moved by pulling the string-like body 7 and the cultivation plate 2 is moved to remove all the cultivation plates 2.

  According to the plant cultivation apparatus 100 and the plant cultivation method according to the present embodiment configured as described above, the worker on the proximal end side draws the string-like body 7 toward the proximal end side, so that the cultivation plate 2 is sequentially based. Since it can be moved to the end side, it becomes possible to collect the cultivated plant in one place. As a result, work efficiency can be improved. Moreover, even when the cultivation plates 2 are arranged in a plurality of upper and lower stages, work at a high place can be performed safely. Furthermore, when arrange | positioning the plate 2 for cultivation in multiple rows, although the work space for operating each plate 2 for cultivation directly is required, since it draws to the base end side in this invention, the said work space is reduced. The rows can be arranged closely together without need, and the limited cultivation space can be effectively utilized to grow a large amount of plants. In addition, the nutrient solution storage container 41 in which the plant is hydroponically cultivated by the movement of the root of the plant when being drawn can also be cleaned.

  The present invention is not limited to the above embodiment. For example, it may be formed by integrating a cultivation shelf and a nutrient solution supply mechanism (specifically, nutrient solution storage container).

  Moreover, although the plant cultivation apparatus of the said embodiment has an upper and lower multistage cultivation shelf and arrange | positions the cultivation plate in one row in each step, it arranges a plurality of rows of cultivation plates in each step It may be. In addition, you may have a one-stage cultivation shelf.

  Furthermore, in addition to arranging the cultivation plates slidably on the rail member, the cultivation plates are arranged in a row so as to float a plurality of cultivation plates on the liquid level of the nutrient solution stored in the nutrient solution tank. Also good. That is, since the plurality of cultivation plates are supported by floating in the nutrient solution, the plurality of cultivation plates may be configured to be movable to the base end side along the column direction.

  In addition, in the above embodiment, the string-like body is connected to the most advanced cultivation plate. However, as the number of cultivation plates increases, the sliding resistance increases, so that the force pulls to the proximal end side. It is conceivable that the workability becomes worse and the workability becomes worse. For this reason, as shown in FIG. 8, the plurality of cultivation plates 2 arranged in a row are divided into a plurality of groups (Group A to Group D in FIG. 8), and the cultivation plates 2 a located on the tip side of each group. The string-like bodies 7a to 7d may be individually connected every 2d. If it becomes this, the force which draws the plate 2 for cultivation to the base end side for every group in order from the group located in the base end side by each string-like body 7a-7d, and pulls the cultivation plate 2 to the base end side becomes not too large. It can prevent impairing workability.

  In addition, in the said embodiment, although one string-like body is connected to the most advanced cultivation plate, you may comprise so that it may connect also to other cultivation plates.

  In addition, a shift prevention mechanism X may be provided as shown in FIG. 9 in order to prevent the adjacent cultivation plates from shifting up and down when moving the plurality of cultivation plates to the base end side. . This shift prevention mechanism X consists of a concave portion X1 provided on one of the connecting edge portions 2c and 2d of the adjacent cultivation plate 2 and a convex portion X2 provided on the other, and the concave portion X1 and the convex portion X2 are engaged. This prevents the adjacent cultivation plates 2 from shifting up and down.

  Moreover, as shown in FIG. 10, a pair of longitudinal direction edge part 41a, 41b of the nutrient solution storage container 41 is the plane part 412a, 412b by which the plate 2 for cultivation is mounted, and the outer end of the said plane part 412a, 412b concerned It may have guide parts 413a and 413b located outside the cultivation plate 2 provided and placed in the part. A rail member 41R is configured by the flat portions 412a and 412b and the guide portions 413a and 413b.

  Furthermore, when the rail member 41 is constituted by the flat portions 412a and 412b and the guide portions 413a and 413b, as shown in FIG. 11, the pressing portion 9 is extended inward from the upper portions of the guide portions 413a and 413b. You may comprise so that it may be located in the upper part of the longitudinal side parts 2a and 2b of the plate 2 for cultivation, and the connection edge parts 2c and 2d of the plate 2 for cultivation will be lifted.

  Moreover, in the plant cultivation method using the plant cultivation apparatus of the above embodiment, the planting is performed from planting to harvesting, but it may be performed from sowing to raising seedlings, or from sowing to harvesting. There may be.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Plant cultivation apparatus 2 ... Cultivation plate 2c, 2d ... Connection edge part 41R ... Rail member 7 ... String-like body 8 ... Mounting member 9 ... Holding part 91- ..Bridge body

Claims (8)

A plant cultivation apparatus for cultivating a plant by arranging a plurality of cultivation plates having a substantially rectangular plate shape holding a plant in a row,
One end is connected to the plate for cultivation located on the front end side in the row direction, and has a string-like body extending toward the base end side along the row direction,
The plurality of cultivation plates are configured to be movable to the proximal side along the row direction,
When the string-like body is drawn toward the base end side, the plurality of cultivation plates move to the base end side along the row direction,
The plant cultivation apparatus , wherein the string-like body has a pressing portion that prevents the connection edge portion of two cultivation plates adjacent in the row direction from lifting . It has a mounting member that is detachably mounted on the tip side edge of the cultivation plate located on the tip side in the row direction,
The plant cultivation apparatus according to claim 1, wherein one end of the string-like body is connected to the mounting member. Having two or more cultivation plate rows composed of a plurality of cultivation plates arranged in a row in the width direction orthogonal to the row direction;
The mounting member has a length straddling two or more cultivation plates arranged in the width direction, and a front edge portion of the cultivation plate located on the distal end side in the row direction in the two or more cultivation plate rows The plant cultivation device according to claim 2, wherein the plant cultivation device is attached to the plant. The string-like body is disposed on the back side of the plurality of cultivation plates,
In the bridge | bridging body provided so that the said holding | suppressing part might straddle the connection edge part surface side of the said two adjacent cultivation plates, the said string-like body in the connection edge part of the said two adjacent cultivation plates The plant cultivation apparatus according to any one of claims 1 to 3 , wherein the plant cultivation apparatus is configured by being connected. The plant cultivation device according to any one of claims 1 to 4 , wherein the plurality of cultivation plates are placed on rail members extending in a row direction. The plant cultivation device according to any one of claims 1 to 4 , wherein the plurality of cultivation plates are supported by floating in a nutrient solution. A plant harvesting method for arranging a plurality of cultivation plates having a substantially rectangular plate shape holding a plant in a row, and harvesting plants cultivated thereby,
One end is fixed to the plate for cultivation located on the distal end side in the row direction, and the string-like body is extended to the proximal end side along the row direction,
By pulling the string-like body to the proximal end side, the plurality of cultivation plates are moved to the proximal end side along the row direction,
A plant harvesting method , wherein a pressing portion provided on the string-like body prevents lifting of a connecting edge portion of two cultivation plates adjacent in a row direction . A plant cultivation method for cultivating a plant by arranging a plurality of cultivation plates having a substantially rectangular plate shape holding a plant in a row,
In the plant planting step, one end of the string-like body is connected to one cultivation plate, and the connection edge of the two cultivation plates adjacent in the row direction is lifted by the pressing portion provided on the string-like body. While preventing the plate for cultivation to the front end side and arranging a plurality of plates for cultivation one after another,
In the plant harvesting step, a plant cultivation method characterized by repeating the operation of removing the cultivation plate on the proximal end side and pulling the string-like body toward the proximal end side.