[go: up one dir, main page]

WO2018168181A1 - Dispositif de culture de plantes et procédé de culture de plantes - Google Patents

Dispositif de culture de plantes et procédé de culture de plantes Download PDF

Info

Publication number
WO2018168181A1
WO2018168181A1 PCT/JP2018/001102 JP2018001102W WO2018168181A1 WO 2018168181 A1 WO2018168181 A1 WO 2018168181A1 JP 2018001102 W JP2018001102 W JP 2018001102W WO 2018168181 A1 WO2018168181 A1 WO 2018168181A1
Authority
WO
WIPO (PCT)
Prior art keywords
plant
liquid fertilizer
cultivation
tank
cultivation tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/001102
Other languages
English (en)
Japanese (ja)
Inventor
信久 二宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2018168181A1 publication Critical patent/WO2018168181A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G27/00—Self-acting watering devices, e.g. for flower-pots
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G27/00—Self-acting watering devices, e.g. for flower-pots
    • A01G27/02—Self-acting watering devices, e.g. for flower-pots having a water reservoir, the main part thereof being located wholly around or directly beside the growth substrate
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics

Definitions

  • the present disclosure relates to a plant cultivation apparatus and a plant cultivation method for cultivating a plant by immersing the root of the plant in liquid fertilizer.
  • a hydroponic plant cultivation device As a plant cultivation device used in a plant factory that performs agriculture such as vegetable cultivation in an industrial form, a hydroponic plant cultivation device is known in which a plant is immersed in a liquid fertilizer housed in a cultivation tank.
  • this plant cultivation device artificial light for photosynthesis is irradiated to a plant to be cultivated, and liquid fertilizer containing nutrients necessary for plant growth in the cultivation water is supplied around the roots of the plant.
  • liquid fertilizer supply not only nutrients but also dissolved oxygen dissolved in the liquid fertilizer may be absorbed by the roots. Therefore, a plant cultivation device having an oxygen supply function for increasing the oxygen content in the liquid fertilizer for cultivation has been proposed (see, for example, Patent Document 1).
  • Patent Document 1 an inverted T-shaped tube having an insertion cylinder for inserting a seedling pocket for planting a plant seedling on the upper side and a left and right cylinder serving as a passage for liquid fertilizer on the lower side is connected to each other. ing. Then, an outward connection pipe and a return connection pipe through which liquid fertilizer circulates and circulates are configured. A bubble generation pump chamber is provided on the most upstream side of the forward connection pipe, and oxygen is supplied to the liquid manure by generating bubbles in the liquid manure.
  • the plant to be cultivated is irradiated with artificial light for photosynthesis, and liquid fertilizer containing nutrients necessary for plant growth in the cultivation water is supplied around the plant roots.
  • liquid fertilizer there is known a system in which liquid fertilizer in a cultivation tank on which a plant is placed is circulated between a storage tank provided outside (see, for example, Patent Document 2).
  • Patent Document 2 a porous container planted with a plant is immersed in liquid fertilizer in a cultivation tank.
  • a circulation method is adopted in which the liquid fertilizer discharged from the cultivation tank through the discharge port is stored in a storage tank, and the liquid fertilizer in the storage tank is supplied to the cultivation tank through the supply port. And supply and discharge
  • the plant cultivation apparatus of the present disclosure cultivates a plant by immersing the root of the plant in liquid fertilizer.
  • the plant cultivation device has a plant holding unit, a cultivation tank, and a bubble generating unit.
  • the plant holding unit holds plants.
  • the cultivation tank has a bottom surface that receives roots extending from the plant through the plant holding part, and a side wall that surrounds the plant holding part, and can store liquid fertilizer.
  • the bubble generating unit is arranged above the cultivation tank, and generates bubbles on the liquid surface of the liquid fertilizer accumulated in the cultivation tank by dropping the liquid fertilizer.
  • the plant cultivation method of the present disclosure is a method using a plant cultivation apparatus that cultivates a plant by immersing the root of the plant in liquid fertilizer collected in a cultivation tank.
  • a plant cultivation apparatus used for a plant cultivation method includes a plant holding unit that holds a plant, a bottom surface that receives a root extending from the plant through the plant holding unit, and a cultivation tank that includes a side wall that surrounds the plant holding unit. Have.
  • the plant cultivation method is A plant holding step of holding the plant by the plant holding unit; A bubble generating step that is arranged above the cultivation tank and generates bubbles on the liquid surface of the liquid fertilizer accumulated in the cultivation tank by dropping the liquid fertilizer, Have
  • FIG. 1 is a schematic cross-sectional view illustrating the configuration of the plant cultivation apparatus according to the first embodiment.
  • FIG. 2 is a schematic plan view of the plant cultivation apparatus according to the first embodiment.
  • FIG. 3 is an explanatory diagram of a fluid state of liquid fertilizer in the cultivation tank of the plant cultivation apparatus according to the first embodiment.
  • FIG. 4 is an explanatory diagram illustrating a relationship between root growth and a liquid level of liquid fertilizer in the cultivation tank of the plant cultivation apparatus according to the first embodiment.
  • FIG. 5 is an explanatory diagram illustrating the relationship between root growth and the level of liquid fertilizer in the cultivation tank of the plant cultivation apparatus according to the first embodiment.
  • FIG. 6 is an explanatory diagram illustrating a relationship between root growth and liquid fertilizer water level in the cultivation tank of the plant cultivation apparatus according to the first embodiment.
  • FIG. 7 is a schematic plan view of the plant cultivation apparatus according to the second embodiment.
  • Patent Document 1 a bubble generation pump that supplies oxygen into liquid fertilizer is provided on the most upstream side of the forward connection pipe.
  • the supply of oxygen to the plant seedlings is performed in a process in which liquid fertilizer sequentially flows through the forward connection pipe and the return connection pipe. Therefore, the dissolved oxygen concentration in the liquid fertilizer varies depending on the arrangement position of the seedling pockets where the plant seedlings are planted. As a result, the growth state of the seedlings to be cultivated varies.
  • the oxygen supply amount in the liquid fertilizer is increased in the conventional plant cultivation apparatus, it is difficult to make the dissolved oxygen concentration uniform, which may cause variations in the growth state.
  • Patent Document 2 it is difficult to uniformly replace the liquid fertilizer in the cultivation tank due to the arrangement of the supply port and the discharge port in the circulation path of the liquid fertilizer.
  • the liquid fertilizer should be contacted as uniformly as possible to each part of the roots. Is desired.
  • FIG. 1 is a schematic cross-sectional view illustrating the configuration of the plant cultivation apparatus 1 according to the first embodiment.
  • the plant cultivation apparatus 1 has a function of industrially cultivating plants such as vegetables and foliage plants.
  • a hydroponic method of cultivating a plant by immersing the root of the plant to be cultivated in liquid fertilizer is used. It has been adopted.
  • the plant 6 to be cultivated has its root held in a planting pot 5 containing a sponge or the like as a medium.
  • the planting pot 5 is a plant holding unit that holds the plant 6.
  • the planting pot 5 is mounted on a pot mounting portion 4 provided in a cultivation tank 2 having a concave cross section that can store liquid fertilizer 3 containing nutrients for cultivation in water.
  • stretched in the cultivation tank 2 is made into the 1st direction, and the direction orthogonal to a 1st direction is defined as a 2nd direction.
  • the storage tank 7 for storing liquid fertilizer 3 drained from the cultivation tank 2 is disposed below the cultivation tank 2, a storage tank 7 for storing liquid fertilizer 3 drained from the cultivation tank 2 is disposed.
  • the storage tank 7 is a rectangular parallelepiped box-shaped container having a rectangular bottom 7a and side walls 7b erected from four sides of the bottom 7a.
  • the cultivation tank 2 is held by a holding member (not shown) in a state where the upper part of the cultivation tank 2 is protruded from the upper surface of the storage tank 7 where the upper end of the side wall 7b is opened.
  • a space for storing the liquid fertilizer 3 is secured between the bottom surface 10 of the cultivation tank 2 and the bottom 7a of the storage tank 7.
  • the whole height of the plant cultivation apparatus 1 can be made low by setting it as the structure which piles up the cultivation tank 2 on the storage tank 7.
  • FIG. Therefore, a plurality of plant cultivation devices 1 can be arranged in a plurality of stages using a shelf or the like, and the plant cultivation device 1 excellent in area productivity is realized.
  • FIG. 2 is a schematic plan view of the plant cultivation apparatus 1 according to the first embodiment.
  • the cultivation tank 2 is a container having a concave cross section in which side walls 11 are erected on four sides of a substantially square bottom 10.
  • a pot placement portion 4 for placing a planting pot 5 is provided at the center of the bottom surface 10.
  • the planting pot 5 is surrounded from the periphery by the four side walls 11, and the bottom of the planting pot 5 is immersed in the liquid fertilizer 3.
  • the cultivation tank 2 has a cover 12 that detachably covers an opening enclosed by these side walls 11.
  • the cover 12 is provided with an opening 12 a corresponding to the placement position of the planting pot 5.
  • the stem portion of the plant 6 extends upward through the opening 12 a.
  • An opening (not shown) communicating with the liquid fertilizer 3 in the cultivation tank 2 is provided at the bottom of the planting pot 5, and the bottom of the planting pot 5 extends from the root of the plant 6 during the growth of the plant 6.
  • the bottom surface 10 of the cultivation tank 2 receives the roots 6a (see FIGS. 4, 5 and 6) in a prolific state extending through the opening.
  • the root 6a is further extended
  • the distance from the planting pot 5 to each side wall 11 is set to a distance that the root 6 a extending from the planting pot 5 can reach.
  • the root 6 a reaches the surrounding side wall 11 as the plant 6 grows.
  • a plurality of drainage ports 13 for adjusting the water level are formed at a predetermined pitch in the horizontal direction, at a predetermined plurality of levels (here, three levels) from the upper surface of the bottom surface 10. Yes. That is, as shown in FIG. 1, a plurality of drainage ports 13 (lower drainage ports 13a, 13a, A middle drainage port 13b and an upper drainage port 13c) are formed.
  • the cultivation tank 2 is positioned above the liquid surface 3 a of the liquid fertilizer 3 accumulated in the cultivation tank 2, and a plurality of (here, two) water supply pipes 14 are arranged in an arrangement sandwiching the planting pot 5 in plan view. They are arranged in one direction (see FIG. 2).
  • the water supply pipe 14 is attached in the form of being laid between two opposing side walls 11.
  • the height of the water supply pipe 14 is set to be higher than the height of the liquid surface 3a in a state where the liquid fertilizer 3 is accumulated in the cultivation tank 2 up to a water level higher than that of the uppermost upper drainage port 13c.
  • the water supply pipe 14 is connected to a connecting pipe 16 provided outside the cultivation tank 2, and the connecting pipe 16 is connected to a pump 17 disposed on the upper surface of the bottom 7 a of the storage tank 7. Furthermore, a plurality of liquid holes (not shown) are formed at a predetermined pitch on the lower surface of the water supply pipe 14 for discharging the liquid fertilizer 3 fed into the water supply pipe 14 in the form of a thin line-shaped discharge liquid 3b by the pressure of the pump 17. Has been. By operating the pump 17, the liquid fertilizer 3 stored in the storage tank 7 is fed to the water supply pipe 14 via the connection pipe 16 (arrow a in FIG. 1).
  • the liquid fertilizer 3 fed to the water supply pipe 14 falls as discharge liquid 3b from the liquid hole on the lower surface of the water supply pipe 14 toward the liquid surface 3a of the liquid fertilizer 3 accumulated in the cultivation tank 2 (arrow b in FIG. 1). ).
  • the liquid fertilizer 3 in the storage tank 7 is supplied to the cultivation tank 2.
  • the pump 17, the connecting pipe 16, and the water supply pipe 14 serve as a liquid fertilizer supply unit that supplies the liquid fertilizer 3 to the cultivation tank 2.
  • the liquid fertilizer 3 supplied to the cultivation tank 2 is dropped and returned to the storage tank 7 from the drain port 13 provided in the side wall 11, and the returned liquid fertilizer 3 is supplied to the cultivation tank 2 again. In this way, circulation supply of the liquid fertilizer 3 is repeatedly executed.
  • the water supply pipe 14 provided with a liquid hole for discharging and dropping the discharge liquid 3b is a bubble generating part that generates bubbles 3c on the liquid surface 3a.
  • the liquid fertilizer 3 of the storage tank 7 is sent to this bubble generating part by the pump 17.
  • the contact area between the liquid fertilizer 3 and the air in the bubbles 3c increases.
  • the oxygen supply amount in the liquid fertilizer 3 is increased, the oxygen uptake from the root 6a is increased, and the growth of the plant 6 can be promoted. That is, the oxygen supply amount in the liquid fertilizer 3 can be increased and the dissolved oxygen concentration can be made uniform to realize a good growth state.
  • the water supply pipe 14 is installed between two opposing side walls 11 in the cultivation tank 2. Arranged in different forms. With this configuration, the discharge liquid 3b can be dropped from the water supply pipe 14 to a plurality of locations on the liquid surface 3a above the root 6a extending between the planting pot 5 and the side wall 11 as the plant 6 grows. Therefore, the bubbles 3c can be generated almost uniformly in the liquid fertilizer 3 around the root 6a extending toward the side wall 11, and the dissolved oxygen concentration in the liquid fertilizer 3 can be kept uniform.
  • the water level of the liquid fertilizer 3 in the cultivation tank 2 rises.
  • the liquid fertilizer 3 in the cultivation tank 2 is drained from the lower drainage port 13a, the middle drainage port 13b, and the upper drainage port 13c constituting the drainage port 13 and stored in the storage tank 7 below.
  • the liquid fertilizer 3 is drained from the drainage port 13 at a height level corresponding to the water level of the liquid fertilizer 3 in the cultivation tank 2 among the lower drainage port 13a, the middle drainage port 13b, and the upper drainage port 13c.
  • the liquid fertilizer 3 is drained only from the lower drainage port 13a of the lowest height level (arrow c).
  • a water level limiting drain 15 is erected on the bottom surface 10 of the cultivation tank 2 at one corner.
  • the water level limiting drain 15 is a hollow tube member having a drain inner hole 15 a, and the drain inner hole 15 a passes through the bottom surface 10 and communicates with the inside of the storage tank 7.
  • the height of the upper end of the water level limiting drain 15 is set corresponding to the limiting water level in the cultivation tank 2.
  • a root-proof permeable sheet 18 is laid on the inner surface of the bottom surface 10 and the side wall 11 so as to cover the drainage port 13.
  • the root-proof water-permeable sheet 18 is a water-permeable sheet-like member provided with openings of a prescribed mesh.
  • the root-proof permeable sheet 18 has a shape that prevents the passage of the root 6 a while allowing the liquid fertilizer 3 to pass therethrough.
  • the cultivation tank 2 has a root-permeable water-permeable sheet 18 as a root-preventing means (root-protecting tool) for preventing the root 6a from entering the drain port 13.
  • FIG. 3 is a schematic top view of the cultivation tank 2 of the plant cultivation apparatus 1.
  • the supply of the liquid fertilizer 3 into the cultivation tank 2 is performed by dropping the liquid fertilizer 3 from the water supply pipe 14 as the discharge liquid 3b.
  • the water supply pipe 14 is arranged at the center inside the cultivation tank 2.
  • the drainage of the liquid fertilizer 3 from the cultivation tank 2 is performed through the drain port 13 formed in the side wall of the cultivation tank 2.
  • the liquid fertilizer 3 in the direction from the center of the cultivation tank 2 to each side wall 11 is provided inside the cultivation tank 2. Is induced (arrow d).
  • a plurality of drain holes 13 are formed at predetermined positions at substantially equal intervals on the four side walls 11 of the cultivation tank 2. From this, a substantially uniform flow state can be realized in the entire range in the cultivation tank 2.
  • FIG. 4, 5, and 6 are explanatory diagrams illustrating the relationship between the growth of the root 6 a and the water level of the liquid fertilizer 3 in the cultivation tank 2 of the plant cultivation apparatus 1 of the first embodiment.
  • FIG. 4 shows a state in which the growth of the plant 6 is in an initial state, the root 6a has not yet grown sufficiently, and has not reached the vicinity of the side wall 11 in the cultivation tank 2.
  • the drainage 3d (arrow e) from the lower drainage port 13a at the lowest stage is not obstructed by the root 6a at all, and the drainage amount from the lower drainage port 13a is defined by the water level on the bottom surface 10 of the cultivation tank 2. Is done.
  • the water level in the cultivation tank 2 is such that the supply amount of the liquid fertilizer 3 supplied to the cultivation tank 2 in the form of the discharge liquid 3b from the water supply pipe 14 is balanced with the drainage amount from the lower drainage port 13a. It converges to level L1.
  • the supply amount of the liquid fertilizer 3 from the water supply pipe 14 is set in advance so that the water level L1 is higher than the lower drainage port 13a and lower than the middle drainage port 13b.
  • FIG. 5 shows a state where the growth of the plant 6 has progressed from the state of FIG. That is, the root 6a grows and proliferates, and the lower drainage port 13a at the lowest stage is almost blocked. In this state, the amount of the drainage 3d from the lower drainage port 13a decreases. As a result, the water level in the cultivation tank 2 rises and the discharge of the drainage 3e (arrow f) from the middle middle drainage port 13b is started.
  • the water level in the cultivation tank 2 converges to a water level L2 in which the amount of liquid fertilizer 3 supplied from the water supply pipe 14 is balanced with the amount of drainage from the lower drainage port 13a and the middle drainage port 13b.
  • this water level L2 is higher than the middle drainage port 13b, it is at a height close to the root 6a that is nowadays on the bottom surface 10 of the cultivation tank 2.
  • the bubbles 3c generated below the liquid surface 3a by the discharge liquid 3b can reach the periphery of the root 6a.
  • the plant 6 grows further and grows until the root 6a is almost in a state of blocking the middle drainage port 13b.
  • the drainage 3e from the middle drainage port 13b is inhibited and the water level in the cultivation tank 2 further rises.
  • the discharge of the drainage 3f (arrow g) from the upper drainage port 13c at the uppermost stage is started, whereby the supply amount of the liquid fertilizer 3 from the water supply pipe 14, the lower drainage port 13a, the middle drainage port 13b, the upper stage
  • the water level in the cultivation tank 2 is stabilized at the water level L3 that balances the amount of drainage from the drain port 13c.
  • This water level L3 is at a position higher than the upper drainage port 13c, but is at a height close to the promising root 6a. Thereby, the bubble 3c generated below the liquid surface 3a can reach the periphery of the root 6a.
  • the drain port 13 formed in the side wall 11 functions as a water level adjusting unit (water level adjusting means) that adjusts the water level of the liquid fertilizer 3 in the cultivation tank 2.
  • the water level adjusting portion is configured by a plurality of drainage ports 13 (three in this case, the lower drainage port 13a, the middle drainage port 13b, and the upper drainage port 13c) formed in the height direction of the side wall 11. Like to do.
  • the drainage port 13 at any stage is always located below the liquid level 3 a.
  • the liquid fertilizer 3 supplied from the water supply pipe 14 is discharged
  • FIG.4, FIG.5, FIG.6 in the plant cultivation apparatus 1 of the structure which supplies the liquid fertilizer 3 continuously from the water supply pipe 14 in the cultivation tank 2, of the root 6a of the plant 6
  • the water level of the liquid fertilizer 3 in the cultivation tank 2 can be increased sequentially according to the growth. That is, in the conventional hydroponics, in order to keep the root 6a that grows thick with the growth of the plant 6 and is properly immersed in the liquid fertilizer 3, the liquid fertilizer 3 from the water supply pipe 14 is maintained. It was necessary to always adjust the water level of the liquid fertilizer 3 in the cultivation tank 2 by adjusting the amount of water supply.
  • the water level of the liquid fertilizer 3 in the cultivation tank 2 is always set by a simple configuration in which a plurality of drain ports 13 formed in the height direction are provided in the side wall 11. It can be held properly.
  • Embodiment 2 In Embodiment 1, the cultivation tank 2 in the plant cultivation apparatus 1 showed the example which is a cross-sectional concave shape which has a substantially square planar shape. However, as shown in FIG. 7, the present invention can also be applied to a plant cultivation apparatus 1A in which the cultivation tank 2A has a rectangular planar shape that is long in one direction.
  • FIG. 7 is a schematic plan view of the plant cultivation apparatus 1A according to the second embodiment.
  • the cultivation tank 2A in the plant cultivation apparatus 1A of Embodiment 2 has a rectangular planar shape in which the side wall 11a extending in the first direction is longer than the side wall 11b extending in the second direction.
  • a plurality (three in this case) of planting pots 5 are placed in the cultivation tank 2A along the first direction which is the longitudinal direction.
  • the cultivation tank 2A has a cover 12 that detachably covers an opening enclosed by the side wall 11a and the side wall 11b.
  • the cover 12 corresponds to the placement position of the planting pot 5 according to the first embodiment.
  • An opening 12a having the same function as the above is provided.
  • two water supply pipes 14 having the same functions as those of the water supply pipe 14 in the first embodiment are arranged in the first direction in an arrangement that sandwiches the planting pot 5 in a plan view.
  • the water supply pipe 14 is attached in the form of being installed between two opposing side walls 11b.
  • the drainage port 13 composed of the lower drainage port 13a, the middle drainage port 13b, and the upper drainage port 13c having the same configuration as the drainage port 13 shown in the first embodiment is provided on the entire length of the side wall 11a. Formed at a constant pitch.
  • a storage tank 7A having a rectangular planar shape whose first direction is longer than the second direction is arranged below the cultivation tank 2A.
  • the storage tank 7 ⁇ / b> A has a function of storing the liquid fertilizer 3 drained from the drain port 13 of the cultivation tank 2 ⁇ / b> A, similarly to the storage tank 7 in the first embodiment.
  • a pump 17 is disposed at one end of the storage tank 7 ⁇ / b> A in the first direction, and the pump 17 is connected to the water supply pipe 14 via a connecting pipe 16.
  • the liquid fertilizer 3 stored in the storage tank 7A is fed to the water supply pipe 14 via the connecting pipe 16, and the liquid of the liquid fertilizer 3 stored in the cultivation tank 2A.
  • the discharged liquid 3b falls from the lower surface of the water supply pipe 14 toward the surface 3a.
  • the liquid fertilizer 3 collected in the cultivation tank 2A is drained from the drain port 13 and stored in a storage tank 7A located below.
  • the liquid fertilizer 3 supplied from the water supply pipe 14 located in the vicinity of the center portion in the second direction is first toward the drain port 13 of the side wall 11a which is the long side. Flows in two directions.
  • the plurality of drain outlets 13 in the side wall 11a are arranged at a constant pitch along the first direction which is the longitudinal direction, the flow state of the liquid fertilizer 3 in the second direction in the cultivation tank 2A is about the first direction. It becomes uniform and the same effect as in the first embodiment is obtained.
  • the first and second embodiments relate to the plant cultivation apparatuses 1 and 1A for cultivating the plant 6 by immersing the root 6a of the plant 6 in the liquid fertilizer 3.
  • the plant cultivation apparatus 1, 1 ⁇ / b> A has a planting pot 5, a cultivation tank 2, and a water supply pipe 14.
  • the planting pot 5 is a plant holding unit that holds the plant 6.
  • the cultivation tank 2 has a concave cross section capable of storing the liquid fertilizer 3, and has a bottom surface 10 that receives the root 6 a extending from the plant 6 and a side wall 11 that surrounds the planting pot 5.
  • the water supply pipe 14 is a bubble generating unit that is arranged above the liquid level 3a of the liquid manure 3 accumulated in the cultivation tank 2 and generates bubbles 3c on the liquid level 3a by dropping the liquid fertilizer 3 toward the liquid level 3a. .
  • a uniform growth state of the plant 6 can be realized by making it uniform.
  • the plant cultivation apparatuses 1 and 1A include a planting pot 5, a cultivation tank 2, a water supply pipe 14, a pump 17, and a water level adjusting unit.
  • the planting pot 5 is a plant holding unit that holds the plant 6.
  • the cultivation tank 2 has a concave cross section capable of storing the liquid fertilizer 3, and has a bottom surface 10 that receives the root 6 a extending from the plant 6 and a side wall 11 that surrounds the planting pot 5.
  • the pump 17, the connecting pipe 16, and the water supply pipe 14 are liquid fertilizer supply units that supply the liquid fertilizer 3 to the cultivation tank 2.
  • the water level adjustment unit adjusts the water level of the liquid fertilizer 3 in the cultivation tank 2.
  • the water level adjuster is composed of a lower drainage port 13a, an intermediate drainage port 13b, and an upper drainage port 13c formed at a plurality of positions in the height direction of the side wall 11.
  • the plant cultivation apparatuses 1 and 1A in the first and second embodiments realize that the liquid fertilizer 3 flows in the cultivation tank 2 so that the liquid fertilizer 3 uniformly contacts the entire root 6a to achieve a good growth state.
  • the liquid fertilizer 3 can be made to flow in the cultivation tank 2 so that it may uniformly contact the whole root 6a, and the favorable growth state of the plant 6 can be realized.
  • Embodiments 1 and 2 are as described above, but the present invention may be implemented with appropriate design changes without departing from the scope of the invention.
  • the drain port 13 is formed only on the side wall 11 of the cultivation tank 2 in the first embodiment, it may be formed on both the side wall 11 and the bottom surface 10.
  • a plurality of water supply pipes 14 are used.
  • a water supply pipe formed by connecting the water supply pipes 14 into an annular shape may be used.
  • the storage tanks 7 and 7A are arranged directly below the cultivation tank 2.
  • the storage tanks 7 and 7A may be arranged at positions separated in the horizontal direction, and the liquid fertilizer 3 discharged from the drain port 13 may be collected by the drainage duct and collected in the storage tanks 7 and 7A.
  • the plant cultivation apparatus and the plant cultivation method of the present disclosure have an effect that the oxygen supply amount in liquid fertilizer is increased and the dissolved oxygen concentration is made uniform to realize a good growth state. Therefore, it is useful in the hydroponics field where plants are cultivated by immersing plant roots in liquid fertilizer.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Hydroponics (AREA)

Abstract

L'invention concerne un dispositif de culture de plantes dans lequel une plante est cultivée avec immersion des racines de la plante dans un engrais liquide. Le dispositif de culture de plante comprend une partie de support de plante, une cuve de culture et une partie de production de bulles. La partie de support de plante supporte la plante. La cuve de culture comprend une surface inférieure qui reçoit les racines s'étendant depuis la plante à travers la partie de support de plante et une paroi latérale qui entoure la partie de support de plante, et l'engrais liquide peut y être collecté. La partie de production de bulles, qui est placée au-dessus du réservoir de culture, introduit goutte à goutte l'engrais liquide de façon à créer des bulles sur la surface liquide de l'engrais liquide collecté dans la cuve de culture.
PCT/JP2018/001102 2017-03-13 2018-01-17 Dispositif de culture de plantes et procédé de culture de plantes Ceased WO2018168181A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017-046866 2017-03-13
JP2017-046865 2017-03-13
JP2017046865 2017-03-13
JP2017046866 2017-03-13

Publications (1)

Publication Number Publication Date
WO2018168181A1 true WO2018168181A1 (fr) 2018-09-20

Family

ID=63521995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/001102 Ceased WO2018168181A1 (fr) 2017-03-13 2018-01-17 Dispositif de culture de plantes et procédé de culture de plantes

Country Status (1)

Country Link
WO (1) WO2018168181A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925926A (en) * 1973-11-08 1975-12-16 Kyowa Kagaku Kogyo Kk Method and apparatus for water and air culture of plants
JPS58198231A (ja) * 1982-05-14 1983-11-18 松下電器産業株式会社 養液栽培方法
JPH0546260U (ja) * 1991-11-29 1993-06-22 カネコ種苗株式会社 植物栽培装置
JPH0633451U (ja) * 1992-10-05 1994-05-06 皓年 大澤 棒▲せん▼水位調整容器
JP2013111046A (ja) * 2011-11-30 2013-06-10 Hiroshi Kamiyama 水耕栽培装置及び水耕栽培方法
JP2013165706A (ja) * 2012-01-16 2013-08-29 Panasonic Corp 植物育成装置
JP2016032457A (ja) * 2014-07-31 2016-03-10 三菱化学株式会社 給液パイプ及び該給液パイプを備えた給液構造

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925926A (en) * 1973-11-08 1975-12-16 Kyowa Kagaku Kogyo Kk Method and apparatus for water and air culture of plants
JPS58198231A (ja) * 1982-05-14 1983-11-18 松下電器産業株式会社 養液栽培方法
JPH0546260U (ja) * 1991-11-29 1993-06-22 カネコ種苗株式会社 植物栽培装置
JPH0633451U (ja) * 1992-10-05 1994-05-06 皓年 大澤 棒▲せん▼水位調整容器
JP2013111046A (ja) * 2011-11-30 2013-06-10 Hiroshi Kamiyama 水耕栽培装置及び水耕栽培方法
JP2013165706A (ja) * 2012-01-16 2013-08-29 Panasonic Corp 植物育成装置
JP2016032457A (ja) * 2014-07-31 2016-03-10 三菱化学株式会社 給液パイプ及び該給液パイプを備えた給液構造

Similar Documents

Publication Publication Date Title
US12096727B2 (en) Hybrid aeroponic/hydroponic growing system
JP6748895B2 (ja) 水耕栽培装置
JP4564984B2 (ja) 育苗装置
TW200934374A (en) Plant cultivation container
JP6779898B2 (ja) 水耕生育システム
US8720110B2 (en) Hydroponics equipment cleaning method
KR101961291B1 (ko) 개량된 급수구조를 갖는 다단식 식물 재배장치
KR20100109751A (ko) 수경 재배기
JP7314616B2 (ja) 養液栽培用部材、養液栽培方法及び養液栽培システム
US20200305368A1 (en) Hydroponic Growing System
JP2006042775A (ja) 植物栽培容器を用いた立体型植物育成装置
KR101926988B1 (ko) 저면관수식 포트 받침
KR20100127144A (ko) 모종 재배용 급수장치
JP2019180252A (ja) 植物栽培装置及び植物栽培方法
KR101786232B1 (ko) 식물 재배용 저면관수 화분
JP4440192B2 (ja) 水耕栽培方法及び水耕栽培装置
JP5259330B2 (ja) 育苗箱ホルダー
WO2018168181A1 (fr) Dispositif de culture de plantes et procédé de culture de plantes
JP2017060460A (ja) 水耕栽培槽及び水耕栽培システム
WO2019116999A1 (fr) Dispositif hydroponique
JPWO2018193784A1 (ja) 水耕栽培装置
KR100458278B1 (ko) 부직포를 이용한 식물재배용 포트
JP2016049027A (ja) 育苗装置
JP5631718B2 (ja) 栽培装置
JP7044559B2 (ja) 水耕栽培容器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18767698

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18767698

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP