JP2020096567A - Water culture method - Google Patents

Water culture method Download PDF

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JP2020096567A
JP2020096567A JP2018236914A JP2018236914A JP2020096567A JP 2020096567 A JP2020096567 A JP 2020096567A JP 2018236914 A JP2018236914 A JP 2018236914A JP 2018236914 A JP2018236914 A JP 2018236914A JP 2020096567 A JP2020096567 A JP 2020096567A
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tubular body
plant
hydroponic cultivation
tubular
holes
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浩晃 池田
Hiroaki Ikeda
浩晃 池田
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Galleria Co Ltd
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Galleria Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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Abstract

To provide a water culture method capable of suppressing occurrence of algae in a culture fluid by blocking entry of light into a culture tank or the like, and reducing frequency of cleaning of the culture tank.SOLUTION: There is provided a water culture method which uses a water culture device 1 comprising: one or more first tubular bodies 10 comprising a plurality of holes on a side face and shading property; a plurality of second tubular bodies 11 comprising a plurality of holes on a side face and shading property, a number of the second tubular bodies being larger than that of the first tubular bodies 10, in which an interval of holes of the second tubular bodies 11 is wider than an interval of holes of the first tubular bodies 10 and there are provided paths between the first tubular bodies 10 and the second tubular bodies 11. The method comprises: a step for inserting a cylindrical member into which a plant support body for supporting a seedling of a plant is inserted, into each hole of the first tubular body 10; a step for detaching, on the path, the cylindrical member from the first tubular body 10 and inserting the same into the hole of the second tubular body 11 which is at an opposite side sandwiching the path therebetween, after passing of a first culture period according to a cultured plant; and a step for harvesting the plant after passing of a second culture period.SELECTED DRAWING: Figure 1

Description

本発明は、水耕栽培方法に関するものである。 The present invention relates to a hydroponic cultivation method.

従来、水耕栽培では、植物の苗を嵌め込む部材として板状の栽培パネルを使用することがほとんどであり、そのような栽培パネルを用いた場合、栽培パネル間の隙間や、栽培パネルと栽培槽との間の隙間等から、栽培装置に光が容易に侵入し、栽培槽等に藻等が発生して、頻繁に清掃を行うことが必要となっていた。 Conventionally, in hydroponics, most of the time, a plate-shaped cultivation panel is used as a member for fitting a plant seedling, and when such a cultivation panel is used, a gap between the cultivation panels and the cultivation panel and cultivation are used. Light easily enters the cultivation apparatus through a gap between the cultivation tank and the like, and alga or the like is generated in the cultivation tank or the like, which requires frequent cleaning.

このような問題を改善する方法として、複数の栽培パネルを隣接して戴置させて光の入る量をできるだけ制限した植物栽培装置が提案されている（特許文献１）。 As a method of improving such a problem, a plant cultivation device has been proposed in which a plurality of cultivation panels are placed adjacent to each other and the amount of light entering is limited as much as possible (Patent Document 1).

特開２０１４−８２９９６号公報JP, 2014-82996, A

しかしながら、この装置を用いた栽培方法では、部材間に隙間が存在しているため、栽培装置への光の侵入を完全に防ぐことはできず、ある程度時間が経過すると、侵入する光によって栽培槽等に藻等が発生し、頻繁に装置を清掃する必要があった。 However, in the cultivation method using this device, since there is a gap between the members, it is not possible to completely prevent the invasion of light into the cultivation device, and after a certain amount of time, the invading light causes the cultivation tank. It was necessary to clean the device frequently because algae and the like were generated.

本発明の目的は、水耕栽培装置内部への光の侵入を遮断することによって装置に藻等が発生するのを抑え、水耕栽培装置の清掃がほとんど不要である水耕栽培方法を提供することである。 An object of the present invention is to provide a hydroponic cultivation method in which algae and the like are suppressed from being generated in the device by blocking the entry of light into the hydroponic cultivation device, and cleaning of the hydroponic device is almost unnecessary. That is.

本発明者は、鋭意検討を重ねた結果、両端が閉止された管状体を使用し、管状体の側面に孔を設け、フランジ部を有し植物支持体が嵌め込まれた筒状部材をその孔を塞ぐように挿入して栽培する水耕栽培装置を用いて水耕栽培を行ったところ、長期間にわたり管状体等に藻等が発生しないことを見出した。 The present inventor, as a result of repeated intensive studies, uses a tubular body whose both ends are closed, provides a hole on the side surface of the tubular body, and has a tubular member having a flange portion and a plant support fitted therein. When hydroponics was carried out using a hydroponic cultivation apparatus that inserts the seeds so as to occlude them and cultivates them, it was found that alga and the like did not occur in the tubular body and the like for a long period of time.

すなわち、本発明は、両端が閉止されており、かつ、側面に複数の孔を有し、第１培養液を貯留する遮光性の１以上の第１管状体と、前記第１管状体と略同じ高さに複数かつ前記第1管状体の本数より多く設けられ、両端が閉止されており、かつ、側面に複数の孔を有し、第２培養液を貯留する遮光性の第２管状体とを備え、前記第２管状体の孔同士の間隔は前記第１管状体の孔同士の間隔より広く、前記各孔に挿入され、植物の苗を支持する植物支持体を挿入するための開口部を有し、上部にフランジ部を有する遮光性の筒状部材と、前記第１管状体と前記第２管状体の間の通路とをさらに備える水耕栽培装置を用いた水耕栽培方法であって、前記第１管状体の孔に、植物の苗を支持する植物支持体が挿入された前記筒状部材を挿入するステップと、栽培する植物に応じた第１栽培期間を経過した後、前記通路において、前記筒状部材を前記第１管状体から抜き取って、通路を挟んで逆側にある前期第２管状体の孔に挿入するステップと、第２栽培期間を経過した後、植物を収穫するステップとを含む水耕栽培方法に関する。 That is, the present invention has one or more light-shielding first tubular bodies that are closed at both ends and that have a plurality of holes on the side surfaces, and that stores the first culture medium, and the first tubular body and A plurality of light-shielding second tubular bodies provided at the same height and more than the number of the first tubular bodies, closed at both ends, and having a plurality of holes on the side surface and storing the second culture medium And a space between the holes of the second tubular body is wider than a space between the holes of the first tubular body, and the opening is inserted into each of the holes and into which a plant support for supporting a plant seedling is inserted. A hydroponic cultivation method using a hydroponic cultivation apparatus further comprising a light-shielding tubular member having a portion and a flange portion on an upper portion, and a passage between the first tubular body and the second tubular body. Then, in the hole of the first tubular body, after the step of inserting the tubular member in which the plant support body that supports the plant seedling is inserted, and the first cultivation period according to the plant to be cultivated, In the passage, a step of extracting the tubular member from the first tubular body and inserting the tubular member into a hole of the second tubular body on the opposite side across the passage, and after the second cultivation period has elapsed, And a hydroponics method including a harvesting step.

本発明の水耕栽培方法では、水耕栽培装置内部への光の侵入を遮断することによって管状体等に藻等が発生するのを抑え、水耕栽培装置の清掃がほとんど不要となる。 In the hydroponic cultivation method of the present invention, by blocking the invasion of light into the hydroponic cultivation apparatus, it is possible to suppress the generation of algae or the like in the tubular body or the like, and cleaning of the hydroponic cultivation apparatus becomes almost unnecessary.

本発明の水耕栽培方法に使用される水耕栽培装置の第一の実施形態の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of 1st embodiment of the hydroponic cultivation apparatus used for the hydroponic cultivation method of this invention. 本発明の水耕栽培方法に使用される筒状部材に係る一実施形態の斜視図である。It is a perspective view of one embodiment concerning a cylindrical member used for the hydroponic cultivation method of the present invention. 本発明の水耕栽培方法に使用される水耕栽培装置の第一の実施形態の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of 1st embodiment of the hydroponic cultivation apparatus used for the hydroponic cultivation method of this invention. 本発明の水耕栽培方法に使用される水耕栽培装置の第二の実施形態の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of 2nd embodiment of the hydroponic cultivation apparatus used for the hydroponic cultivation method of this invention. 本発明の水耕栽培方法に使用される水耕栽培装置の第二の実施形態の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of 2nd embodiment of the hydroponic cultivation apparatus used for the hydroponic cultivation method of this invention. 本発明の水耕栽培方法の一例をしめす概略側面図である。It is a schematic side view which shows an example of the hydroponic cultivation method of this invention. 本発明の水耕栽培方法に使用される水耕栽培装置の第三の実施形態の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of 3rd embodiment of the hydroponic cultivation apparatus used for the hydroponic cultivation method of this invention. 水耕栽培装置の従来例を示す概略断面図である。It is a schematic sectional drawing which shows the prior art example of a hydroponic cultivation apparatus.

以下、本発明の実施の形態について図を参照しながら説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の水耕栽培方法に使用される水耕栽培装置の第一の実施形態の一例を示す概略斜視図である。水耕栽培装置１は、図１に示すように、両端が閉止されている第１管状体１０が１以上設けられている。また、第１管状体と略同じ高さに、両端が閉止されている第２管状体１１が複数設けられている。第２管状体１１の本数は、第１管状体１０の本数より多くなっている。第１管状体１０には給水管Ｐ１ａと排水管Ｐ２ａが接続されており、第２管状体１１には給水管Ｐ１ｂと排水管Ｐ２ｂが接続されている。また、第１管状体１０と第２管状体１１の間には、通路Ｗが設けられている。 FIG. 1 is a schematic perspective view showing an example of a first embodiment of a hydroponic cultivation apparatus used in the hydroponic cultivation method of the present invention. As shown in FIG. 1, the hydroponic cultivation device 1 is provided with one or more first tubular bodies 10 whose both ends are closed. Further, a plurality of second tubular bodies 11 whose both ends are closed are provided at substantially the same height as the first tubular body. The number of second tubular bodies 11 is larger than the number of first tubular bodies 10. A water supply pipe P1a and a drain pipe P2a are connected to the first tubular body 10, and a water supply pipe P1b and a drain pipe P2b are connected to the second tubular body 11. A passage W is provided between the first tubular body 10 and the second tubular body 11.

図２は、本発明の水耕栽培方法に使用される筒状部材に係る一実施形態の斜視図である。筒状部材１６は、一端にフランジ部１６ａを有している。筒状部材１６及びフランジ部１６ａの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。フランジ部１６ａの材質は、筒状部材１６の他の部分と異なっていてもよい。また、筒状部材１６の形状は、フランジ部１６ａを除いて考えた場合、例えば、円柱形状、多角柱形状、円錐形状、多角錐形状等が挙げられる。開口部１６ｂには植物を支持する植物支持部が嵌め込まれる。 FIG. 2 is a perspective view of an embodiment of a tubular member used in the hydroponic cultivation method of the present invention. The tubular member 16 has a flange portion 16a at one end. The cylindrical member 16 and the flange portion 16a may be made of any material that blocks light, and examples thereof include a resin material and a metal. The material of the flange portion 16 a may be different from that of the other portion of the tubular member 16. The shape of the tubular member 16 may be, for example, a cylindrical shape, a polygonal prism shape, a conical shape, or a polygonal pyramid shape, when the flange portion 16a is excluded. A plant support portion that supports a plant is fitted into the opening 16b.

図３は、本発明の水耕栽培方法に使用される水耕栽培装置の第一の実施形態の一例を示す第１管状体及び第１貯水槽に関する概略断面図である。第１管状体１０は側面に複数の孔１２Ａを有している。また、第１管状体１０は、内部に第１培養液１５Ａを給水する給水部１３Ａと、第１管状体１０から第１培養液１５Ａを排出する排水部１４Ａを備えている。 FIG. 3 is a schematic cross-sectional view of the first tubular body and the first water storage tank showing an example of the first embodiment of the hydroponic cultivation apparatus used in the hydroponic cultivation method of the present invention. The first tubular body 10 has a plurality of holes 12A on its side surface. Further, the first tubular body 10 includes a water supply unit 13A for supplying the first culture liquid 15A therein and a drainage unit 14A for discharging the first culture liquid 15A from the first tubular body 10.

図３には図示されていないが、同様に、第２管状体１１は側面に複数の孔１２Ｂを有している。また、第２管状体１１は、内部に第２培養液１５Ｂを給水する給水部１３Ｂと、第２管状体１１から第２培養液１５Ｂを排出する排水部１４Ｂを備えている。なお、第１管状体１０及び第２管状体１１の両端の閉止手段としては、光の侵入を遮断できるのであれば特に限定されないが、例えば、蓋を被せて塞ぐことや、溶接等により完全に塞ぐこと等が挙げられる。 Although not shown in FIG. 3, similarly, the second tubular body 11 has a plurality of holes 12B on its side surface. In addition, the second tubular body 11 includes a water supply unit 13B for supplying the second culture liquid 15B and a drainage unit 14B for discharging the second culture liquid 15B from the second tubular body 11 inside. The means for closing both ends of the first tubular body 10 and the second tubular body 11 is not particularly limited as long as it can block the entry of light, but for example, it can be completely covered by covering with a lid or welding. Examples include blocking.

第１管状体１０及び第２管状体１１の材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。また、これら管状体の形状としては、例えば、円柱形状等が挙げられるが、多角柱形状等であってもよい。さらに、これら管状体は必ずしも直線状でなくてもよく、培養液の流れに支障がない限り、湾曲又は屈曲する部分が含まれていてもよい。 The first tubular body 10 and the second tubular body 11 may be made of any material that blocks light, and examples thereof include a resin material and a metal. Further, examples of the shape of these tubular bodies include a columnar shape and the like, but may be a polygonal columnar shape and the like. Furthermore, these tubular bodies do not necessarily have to be straight, and may include a curved or bent portion as long as the flow of the culture medium is not hindered.

第１管状体１０の孔１２Ａ及び第２管状体の孔１２Ｂは、側面に複数あればよく、特に孔の数は限定されず、植物の種類等に応じて適宜設ければよい。 The holes 12A of the first tubular body 10 and the holes 12B of the second tubular body 10 may be plural on the side surface, and the number of the holes is not particularly limited, and may be appropriately provided depending on the type of plant and the like.

第２管状体１１は、第１管状体１０において第１栽培期間栽培され、成長した植物をさらに栽培するためのものであるため、第２管状体１１の孔１２Ｂの孔同士の間隔は、第１管状体１０の孔１２Ａの孔同士の間隔より広くなっている。孔１２Ａ及び孔１２Ｂの形状は、筒状部材１６に合わせた形状であれば、とくに制限されない。例えば、円形、楕円形、多角形等が挙げられる。 Since the second tubular body 11 is for further cultivating the plant that has been cultivated in the first tubular body 10 for the first cultivation period and has grown, the distance between the holes 12B of the second tubular body 11 is It is wider than the distance between the holes 12A of the tubular body 10. The shapes of the holes 12A and the holes 12B are not particularly limited as long as they are the shapes that match the tubular member 16. For example, a circle, an ellipse, a polygon, etc. may be mentioned.

第１管状体１０と第２管状体１１の間には、第１管状体１０で栽培された植物を第２管状体１１で栽培する時の移し替え作業のための通路Ｗが設けられている。通路Ｗの幅は、作業者が移し替え作業を行うのに適した幅であればよく、特に制限されない。 A passage W is provided between the first tubular body 10 and the second tubular body 11 for transfer work when a plant cultivated in the first tubular body 10 is cultivated in the second tubular body 11. .. The width of the passage W is not particularly limited as long as the width is suitable for the worker to perform the transfer work.

第１貯水槽１７Ａは、第１培養液１５Ａを貯水しており、その上部は蓋体１７ａで覆われている。第１貯水槽１７Ａ及び蓋体１７ａの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。
なお、図３には示されていないが、同様に、第２貯水槽１７Ｂは、第２培養液１５Ｂを貯水しており、その上部は蓋体１７ｂで覆われている。第２貯水槽１７Ｂ及び蓋体１７ｂの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。 The first water storage tank 17A stores the first culture solution 15A, and the upper portion thereof is covered with a lid 17a. The first water tank 17A and the lid 17a may be made of any material that blocks light, such as a resin material or a metal.
Although not shown in FIG. 3, similarly, the second water storage tank 17B stores the second culture solution 15B, and the upper portion thereof is covered with the lid 17b. The material of the second water tank 17B and the lid 17b may be any material that blocks light, and examples thereof include a resin material and a metal.

第１培養液は、第１栽培期間において使用できるのであれば特に限定されないが、例えば、ＯＡＴアグリオ株式会社のＯＡＴハウス１号、ＯＡＴハウス２号、及び、ＯＡＴハウス５号を水と混合して調製することが考えられる。これらを用いて第１培養液を調製する場合の混合比率としては、質量比でＯＡＴハウス１号：ＯＡＴハウス２号：ＯＡＴハウス５号＝７５：５０：１で混合するのが好ましい。例えば、ＯＡＴアグリオ株式会社のＯＡＴハウス１号６７５ｇ、ＯＡＴハウス２号４５０ｇ、及び、ＯＡＴハウス５号９ｇを水に溶かして６００リットルにしたものを調製して使用することが考えられる。第１培養液１５Ａは、供給器Ｓ１により給水管Ｐ１ａを通って給水部１３Ａより第１管状体１０内に給水される。第１管状体１０内の第１培養液１５Ａは、排水部１４Ａから排水され、排水管Ｐ２ａを通って第１貯水槽１７Ａに回収される。なお、図３では供給器Ｓ１は、第１貯水槽１７Ａの内部に設けられているが、第１貯水槽１７Ａの内部及び給水管Ｐ１ａ内部への光の遮断に影響がない限り、第１貯水槽１７Ａの外部に設けられていてもよい。給水管Ｐ１ａ及び排水管Ｐ２ａの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。 The first culture solution is not particularly limited as long as it can be used in the first cultivation period. For example, by mixing OAT House No. 1, OAT House No. 2, and OAT House No. 5 of OAT Agrio Co., Ltd. with water. It is possible to prepare. When the first culture solution is prepared using these, it is preferable to mix them in a mass ratio of OAT House No. 1: OAT House No. 2: OAT House No. 5 = 75:50:1. For example, it is conceivable that 675 g of OAT House No. 1 (450 g), OAT House No. 2 (450 g), and OAT House No. 5 (9 g) of OAT Agrio Co., Ltd. are dissolved in water to make 600 liters and used. The first culture solution 15A is supplied into the first tubular body 10 from the water supply section 13A through the water supply pipe P1a by the supply device S1. The first culture liquid 15A in the first tubular body 10 is drained from the drainage unit 14A and collected in the first water storage tank 17A through the drainage pipe P2a. Note that the supply device S1 is provided inside the first water storage tank 17A in FIG. 3, but as long as it does not affect the blocking of the light inside the first water storage tank 17A and the water supply pipe P1a, the first water storage tank is not affected. It may be provided outside the tank 17A. The material of the water supply pipe P1a and the drainage pipe P2a may be anything that blocks light, and examples thereof include a resin material and a metal.

第２培養液は、第２栽培期間において使用できるのであれば特に限定されないが、例えば、ＯＡＴアグリオ株式会社のＯＡＴハウス１号、ＯＡＴハウス２号、及び、ＯＡＴハウス５号を水と混合して調製することが考えられる。これらを用いて第２培養液を調製する場合の混合比率としては、質量比でＯＡＴハウス１号：ＯＡＴハウス２号：ＯＡＴハウス５号＝７５：５０：１で混合するのが好ましい。混合する好適な質量比は、第１培養液と第２培養液においてどちらも同じであるが、水に溶解させる質量は、第２培養液の場合、第１培養液の１．３〜２．０倍であるのが好ましい。例えば、ＯＡＴアグリオ株式会社のＯＡＴハウス１号１１２５ｇ、ＯＡＴハウス２号７５０ｇ、及び、ＯＡＴハウス５号１５ｇを水に溶かして６００リットルにしたものを調製して使用することが考えられる。図３には図示されていないが、同様に、第２培養液１５Ｂも供給器Ｓ２により給水管Ｐ１ｂを通って第２管状体１１内に給水され、同様に循環し、排水管Ｐ２ｂを通って第２貯水槽１７Ｂに回収される。給水管Ｐ１ｂ及び排水管Ｐ２ｂの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。 The second culture solution is not particularly limited as long as it can be used in the second cultivation period, for example, by mixing OAT House No. 1, OAT House No. 2, and OAT House No. 5 of OAT Agrio Co., Ltd. with water. It is possible to prepare. When the second culture medium is prepared using these, it is preferable to mix them in a mass ratio of OAT House No. 1: OAT House No. 2: OAT House No. 5 = 75:50:1. The preferable mass ratio to be mixed is the same in both the first culture liquid and the second culture liquid, but the mass to be dissolved in water is 1.3 to 2. It is preferably 0 times. For example, it is conceivable that 1125 g of OAT House No. 1 of OAT Agrio Co., Ltd., 750 g of OAT House No. 2 and 15 g of OAT House No. 5 are dissolved in water to make 600 liters and used. Although not shown in FIG. 3, similarly, the second culture solution 15B is also supplied to the inside of the second tubular body 11 through the water supply pipe P1b by the feeder S2, circulates in the same manner, and passes through the drainage pipe P2b. It is collected in the second water tank 17B. The material of the water supply pipe P1b and the drainage pipe P2b may be anything that blocks light, and examples thereof include a resin material and a metal.

供給器Ｓ１及びＳ２としては、例えば、ポンプ等が挙げられる。 As the supply devices S1 and S2, for example, a pump or the like can be mentioned.

筒状部材１６に植物Ｃを装着するときは、植物Ｃを支持する植物支持部１８を開口部１６ｂに嵌め込んでもよいし、植物支持部１８を開口部１６ｂに嵌め込んだ後に植物Ｃの種を植物支持部１８に蒔いて育苗してもよい。植物支持部１８としては、例えば、弾性部材等が挙げられる。そのような弾性部材としては、例えば、スポンジ、ゴム等が挙げられる。 When the plant C is mounted on the tubular member 16, the plant support 18 supporting the plant C may be fitted into the opening 16b, or the plant C may be seeded after the plant support 18 is fitted into the opening 16b. The seedlings may be sown on the plant support portion 18 to raise seedlings. Examples of the plant support portion 18 include elastic members. Examples of such elastic member include sponge and rubber.

図４は、本発明の水耕栽培方法に使用される水耕栽培装置の第二の実施形態の一例を示す概略斜視図である。水耕栽培装置２は、図４に示すように、略同じ高さの第１管状体２０と第２管状体２１が上下方向に複数段設けられている。また、図５は、第二の実施形態の一例を示す第１管状体及び第１貯水槽に係る概略断面図である。第１培養液２５Ａは、供給器Ｓ１により給水管Ｐ１ａを通って給水部２３Ａから最上段の第１管状体２０に給水され、最上段の第１管状体２０の排水部２４Ａから排水された第１培養液２５Ａは、直接又は接続管Ｐ３ａを通って、２段目の第１管状体２０の給水部２３Ａより当該段の第１管状体２０に給水される。そして、同様に排水部２４Ａから排水され、順次下の段の第１管状体２０に培養液が流れていく。最後の段の第１管状体２０の排水部２４Ａから排出された第１培養液２５Ａは、排水管Ｐ２ａを通って第１貯水槽２７Ａに回収される。接続管Ｐ３ａの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。 FIG. 4 is a schematic perspective view showing an example of the second embodiment of the hydroponic cultivation apparatus used in the hydroponic cultivation method of the present invention. As shown in FIG. 4, the hydroponic cultivation device 2 includes a plurality of first tubular bodies 20 and second tubular bodies 21 having substantially the same height arranged in a plurality of stages in the vertical direction. Moreover, FIG. 5 is a schematic cross-sectional view of the first tubular body and the first water tank, showing an example of the second embodiment. The first culture solution 25A is supplied from the water supply part 23A to the uppermost first tubular body 20 through the water supply pipe P1a by the supply device S1, and is drained from the drainage part 24A of the uppermost first tubular body 20. The first culture solution 25A is supplied to the first tubular body 20 of the stage from the water supply section 23A of the second tubular body 20 of the second stage directly or through the connecting pipe P3a. Then, similarly, the culture liquid is drained from the drainage unit 24A, and the culture solution sequentially flows to the first tubular body 20 in the lower stage. The first culture solution 25A discharged from the drainage section 24A of the first tubular body 20 in the last stage is collected in the first water storage tank 27A through the drainage pipe P2a. The connection tube P3a may be made of any material as long as it blocks light, and examples thereof include a resin material and a metal.

図５には図示されていないが、同様に、第２培養液２５Ｂは、供給器Ｓ２により給水管Ｐ１ｂを通って給水部２３Ｂから最上段の第２管状体２１に給水され、最上段の第２管状体２１の排水部２４Ｂから排水された第２培養液２５Ｂは、直接又は接続管Ｐ３ｂを通って、２段目の第２管状体２１の給水部２３Ｂより当該段の第２管状体２１に給水される。そして、同様に循環した第２培養液２５Ｂは、排水管Ｐ２ｂを通って第２貯水槽２７Ｂに回収される。接続管Ｐ３ｂの材質としては、光を遮断するものであればよく、例えば、樹脂材料、金属などが挙げられる。このように管状体を複数段設けた場合であっても、長期間にわたり管状体等に藻等を発生させることないため、効率的に多くの植物を栽培できる。 Although not shown in FIG. 5, similarly, the second culture solution 25B is supplied from the water supply section 23B to the uppermost second tubular body 21 through the water supply pipe P1b by the feeder S2, and the second culture medium 25B of the uppermost stage is supplied. The second culture solution 25B drained from the drainage section 24B of the second tubular body 21 passes directly or through the connecting pipe P3b from the water supply section 23B of the second tubular body 21 of the second stage to the second tubular body 21 of the relevant stage. Will be supplied with water. Then, the similarly circulated second culture solution 25B is collected in the second water storage tank 27B through the drain pipe P2b. The connection tube P3b may be made of any material as long as it blocks light, and examples thereof include a resin material and a metal. Even when a plurality of tubular bodies are provided in this manner, many plants can be efficiently cultivated because algae or the like are not generated in the tubular body or the like for a long period of time.

図６は、本発明の水耕栽培方法の一実施形態をしめす概略側面図である。まず、播種の後育苗を行った植物Ｃを支持する植物支持部２８が開口部２６ｂに嵌め込まれている筒状部材２６を第１管状体２０の孔２２Ａに挿入する。 FIG. 6 is a schematic side view showing an embodiment of the hydroponic cultivation method of the present invention. First, the tubular member 26 in which the plant support portion 28 that supports the plant C that has been raised after seeding is fitted into the opening 26b is inserted into the hole 22A of the first tubular body 20.

栽培する植物に応じた第1栽培期間が経過した後、通路Ｗにおいて、第１管状体２０から筒状部材２６を抜き取り、通路を挟んで逆側にあり第１管状体２０と略同じ高さの第２管状体２１の孔２２Ｂに筒状部材２６を挿入する。この作業においては、第１管状体２０と略同じ高さに第２管状体２１があるために迅速に入れ替え作業が行えることができることから、管状体内部に光が侵入することはほとんどなく、また、筒状部材２６や植物Ｃの根から培養液が滴り落ちることもほとんどない。迅速に入れ替え作業を行う観点から、例えば、第２管状体２１の直径が９ｃｍであり第２管状体間の隙間が５〜１０ｃｍの場合、第２管状体の本数は２〜４本が好ましい。この範囲であると、体の小さい作業者であっても、通路Ｗから遠い方の端にある第２管状体２１の孔にも手が届くため、迅速かつ確実に入れ替え作業を行うことができ、作業者が障害者であっても簡単に入れ替え作業をすることができる。そのため、藻等が発生することはほとんどなく、また、水耕栽培装置の周囲も乾いた状態で清潔に保たれる。その結果、特に食用植物の水耕栽培において問題となりうるカビ等が発生することがほとんどない。もし必要であれば、さらに、入れ替え作業の過程で根の下にタオル等を近づけ、床に培養液のしずくが全く落ちないようにしてもよい。また、第２管状体２１の両側に通路Ｗを設け、各通路Ｗを挟んで外側に第１管状体２０を設置するようにしてもよい。この場合において、例えば、第２管状体２１の直径が９ｃｍであり第２管状体間の隙間が５〜１０ｃｍの場合、第２管状体の本数は４〜８本が好ましい。 After the first cultivation period according to the plant to be cultivated, in the passage W, the tubular member 26 is pulled out from the first tubular body 20 and is on the opposite side across the passage and is substantially the same height as the first tubular body 20. The tubular member 26 is inserted into the hole 22B of the second tubular body 21. In this work, since the second tubular body 21 is located at substantially the same height as the first tubular body 20, the replacement work can be performed quickly, so that light hardly enters the tubular body, and Also, the culture solution hardly drips from the tubular member 26 or the root of the plant C. From the viewpoint of performing the quick replacement work, for example, when the diameter of the second tubular body 21 is 9 cm and the gap between the second tubular bodies is 5 to 10 cm, the number of the second tubular bodies is preferably 2 to 4. Within this range, even a worker with a small body can reach the hole of the second tubular body 21 at the end farther from the passage W, so that the replacement work can be performed quickly and reliably. Even if the worker is a disabled person, the replacement work can be easily performed. Therefore, algae and the like are rarely generated, and the surroundings of the hydroponic cultivation device can be kept dry and clean. As a result, mold and the like, which can be a problem particularly in hydroponic cultivation of edible plants, hardly occur. If necessary, a towel or the like may be brought under the roots during the replacement work so that no drops of the culture solution fall on the floor. Alternatively, the passages W may be provided on both sides of the second tubular body 21, and the first tubular body 20 may be installed outside with the passages W interposed therebetween. In this case, for example, when the diameter of the second tubular body 21 is 9 cm and the gap between the second tubular bodies is 5 to 10 cm, the number of the second tubular bodies is preferably 4 to 8.

栽培する植物に応じた第２栽培期間が経過した後、植物Ｃを収穫する。収穫方法としては特に限定されないが、例えば、植物Ｃの植物支持部２８や筒状部材２６より上の部分を清潔なハサミで切るようにすると、培養液等を洗い流す必要もほとんどない。 After the second cultivation period corresponding to the plant to be cultivated, the plant C is harvested. Although the harvesting method is not particularly limited, for example, when the portions above the plant support portion 28 and the tubular member 26 of the plant C are cut with clean scissors, it is almost unnecessary to wash away the culture solution and the like.

本発明の各実施形態における第１栽培期間とは、栽培する植物Ｃが小苗から大苗まで成長する期間をいう。第１栽培期間は植物によって異なるが、例えばリーフレタスの場合、好ましくは１０〜１２日である。小苗とは、植物によって異なるが、例えばリーフレタスの場合は、植物支持部に播種してから９〜１８日経過した苗をいう。 The first cultivation period in each embodiment of the present invention refers to a period during which the plant C to be grown grows from a small seedling to a large seedling. The first cultivation period varies depending on the plant, but in the case of leaf lettuce, for example, it is preferably 10 to 12 days. Small seedlings differ depending on the plant, but in the case of leaf lettuce, for example, seedlings 9 to 18 days after seeding on the plant support part.

本発明の各実施形態における第２栽培期間とは、栽培する植物Ｃが大苗から収穫されるまでの期間をいう。第２栽培期間は植物によって異なるが、例えばリーフレタスの場合、好ましくは１０〜１２日である。 The second cultivation period in each embodiment of the present invention refers to a period until the plant C to be cultivated is harvested from a large seedling. The second cultivation period varies depending on the plant, but in the case of leaf lettuce, for example, it is preferably 10 to 12 days.

収穫後は筒状部材２６から植物支持部２８を抜き取り、筒状部材２６を洗浄すれば、再度、水耕栽培に使用することができる。洗浄方法としては、例えば、洗浄液を入れた容器に筒状部材を６時間から２日漬けておくことが考えられる。植物支持部２８の上部は光に触れ藻等が発生することがあるため、筒状部材２６の開口部２６ｂにも藻等が付着することがあるが、管状体等、水耕栽培装置のその他の部分に藻等が発生することはほとんどない。そのため、筒状部材２６を上記のように洗浄液に漬けておくだけでよく、清掃等の作業はほとんど不要である。洗浄後は、水等で筒状部材２６に付いた洗浄液を流し取るのみで良く、水耕栽培に再度使用する際に、継続して水耕栽培を行うことができるため、無駄がなく非常に効率的に植物を栽培・収穫することが可能となる。洗浄液としては、例えば、次亜塩素酸等が挙げられる。 After harvesting, if the plant supporting portion 28 is removed from the tubular member 26 and the tubular member 26 is washed, it can be used again for hydroponic cultivation. As a cleaning method, for example, it is possible to soak the tubular member in a container containing the cleaning liquid for 6 hours to 2 days. Algae and the like may adhere to the openings 26b of the tubular member 26 because the upper portion of the plant support portion 28 may be exposed to light and algae or the like may be generated. Almost no algae are generated in the area. Therefore, it is only necessary to soak the tubular member 26 in the cleaning liquid as described above, and the work such as cleaning is almost unnecessary. After washing, it is only necessary to wash off the washing liquid attached to the tubular member 26 with water or the like, and when it is used again for hydroponic cultivation, it is possible to continue hydroponic cultivation, so that there is no waste and it is very useful. It becomes possible to cultivate and harvest plants efficiently. Examples of the cleaning liquid include hypochlorous acid and the like.

水耕栽培を行うために植物に光を照射する光源としては、特に限定されないが、例えば、LED、蛍光灯等が挙げられる。 The light source that irradiates the plant with light for hydroponics is not particularly limited, and examples thereof include an LED and a fluorescent lamp.

図７は、本発明の水耕栽培方法に使用される水耕栽培装置の第三の実施形態の一例を示す第２管状体に係る概略断面図である。光源Ｌは、下段の植物Ｃに照射するように各管状体の両側に配置されている。これにより、上下方向の省スペース化を達成することができる。また、植物Ｃに合わせて照射角度を調整できるよう、角度調整機構を設けてもよい。 FIG. 7 is a schematic cross-sectional view of a second tubular body showing an example of the third embodiment of the hydroponic cultivation apparatus used in the hydroponic cultivation method of the present invention. The light sources L are arranged on both sides of each tubular body so as to irradiate the lower plant C. Thereby, space saving in the vertical direction can be achieved. Further, an angle adjusting mechanism may be provided so that the irradiation angle can be adjusted according to the plant C.

図８は、水耕栽培装置の従来例を示す概略断面図である。従来例の水耕栽培装置１００の栽培槽１２１は、断面視略コの字状を形成しており、栽培槽１２１の下には培養液１２５Ａが貯留された栽培槽１２１の重量を支えるための台１２６が設けられ、栽培板１２２に設けられた孔に植物Ｃ２を支持した植物支持体が嵌め込まれる。このような水耕栽培装置は、一般的に栽培槽が大型で水流速度が遅いという特徴がある。そのため、栽培槽１２１の底部外側に光源Ｌ２を直接設置した場合、光源Ｌ２の熱により栽培槽１２１中の培養液１２５Aの温度が上昇してしまい、根の成長が促進されて、葉等その他の部分の成長が阻害されやすい。このことから、従来例では、台１２６から部材１２７で光源ユニット１２８を吊り下げることによって、光源Ｌ２の熱が栽培槽１２１中の培養液１２５に直接伝わらないようにしている。しかしながら、そのような構成にしても、光源Ｌ２の熱を逃がしきれないことから、培養液の温度が上昇してしまうことがある。その場合は、さらに空気を送り込んで熱を逃がすためのファンを設けている水耕栽培装置も存在している。上記のような水耕栽培装置の場合、栽培槽の上下方向の間隔を大きく取る必要があるため、栽培可能な植物の量が少なくなる。本実施形態では、光源Ｌが管状体２１の両側に離れて設置されていることから、管状体の上下方向の間隔を狭くすることができ、より効率的に栽培することができるだけでなく、光源Ｌの熱が蓄積されにくいことから、植物Ｃの根の成長が抑えられ、根以外の葉等の部分の効果的な成長を促すことができる。 FIG. 8: is a schematic sectional drawing which shows the conventional example of a hydroponic cultivation apparatus. The cultivation tank 121 of the hydroponic cultivation apparatus 100 of the conventional example has a substantially U-shape in cross section, and supports the weight of the cultivation tank 121 in which the culture solution 125A is stored under the cultivation tank 121. A table 126 is provided, and a plant support that supports the plant C2 is fitted into the hole provided in the cultivation plate 122. Such a hydroponic cultivation apparatus is generally characterized by a large cultivation tank and a slow water flow rate. Therefore, when the light source L2 is directly installed on the outer side of the bottom of the cultivation tank 121, the temperature of the culture solution 125A in the cultivation tank 121 rises due to the heat of the light source L2, the growth of roots is promoted, and leaves etc. Partial growth is likely to be hindered. From this, in the conventional example, the heat of the light source L2 is prevented from being directly transmitted to the culture solution 125 in the cultivation tank 121 by suspending the light source unit 128 from the base 126 with the member 127. However, even with such a configuration, the heat of the light source L2 cannot be completely released, and thus the temperature of the culture solution may increase. In that case, there is also a hydroponic cultivation apparatus provided with a fan for further feeding air to release heat. In the case of the hydroponic cultivation apparatus as described above, since it is necessary to make a large space in the vertical direction of the cultivation tank, the amount of cultivable plants is reduced. In the present embodiment, since the light sources L are installed separately on both sides of the tubular body 21, it is possible to narrow the vertical spacing of the tubular bodies, and not only can the cultivation be performed more efficiently, but also the light source. Since the heat of L is less likely to be accumulated, the growth of the roots of the plant C is suppressed, and the effective growth of the leaves other than the roots can be promoted.

本発明の水耕栽培方法の一実施形態においては、ｐＨダウン剤を使用することがない。ｐＨダウン剤としては、例えば、リン酸をベースとしたものが考えられる。水耕栽培を行う上で、培養液のｐＨは弱酸性域であることが必要とされるが、通常の水耕栽培方法においては、栽培を行う過程で、ｐＨが上がって中性・弱アルカリ性となってくるため、ｐＨを測定しながら、随時ｐＨダウン剤を投入しなければならず、手間がかかる。これは、通常の水耕栽培方法では培養液に藻等が発生するためにｐＨが上がるのが原因とされている。ｐＨが上がって弱酸性ではなくなると、根に悪影響を及ぼし、植物の成長を妨げる。 In one embodiment of the hydroponic cultivation method of the present invention, the pH reducing agent is not used. As the pH lowering agent, for example, one based on phosphoric acid can be considered. When performing hydroponics, the pH of the culture broth is required to be in a weakly acidic range, but in the normal hydroponics method, the pH rises in the process of cultivation, resulting in a neutral/weak alkaline solution. Therefore, it is necessary to add a pH-lowering agent as needed while measuring the pH, which is troublesome. This is attributed to an increase in pH due to the generation of algae or the like in the culture solution in the usual hydroponics method. When the pH rises and becomes less acidic, it adversely affects the roots and prevents plant growth.

本発明の水耕栽培方法の一実施態様では、藻等が発生することがほとんどないため、ｐＨダウン剤を使用しなくても培養液のｐＨも弱酸性域のまま維持される。 In one embodiment of the hydroponic cultivation method of the present invention, since algae and the like are rarely generated, the pH of the culture solution is maintained in a weakly acidic range without using a pH-lowering agent.

ハンナ インスツルメンツ・ジャパン社製コンボ１（ＨＩ９８１２９）を用いて、本発明の水耕栽培方法に係る第二の実施形態における第２培養液のｐＨを水温２３℃で測定した。なお、第２培養液は、ＯＡＴアグリオ株式会社のＯＡＴハウス１号１１２５ｇ、ＯＡＴハウス２号７５０ｇ、及び、ＯＡＴハウス５号１５ｇを水に溶かして６００リットルとしたものを調製して使用した。栽培した植物はリーフレタスである。
測定は収穫前の７日間（栽培開始日（播種日）から２６日目〜３２日目）行った。その結果、測定期間中において培養液のｐＨは上昇しなかった。その測定結果を表１に示す。 The pH of the second culture solution in the second embodiment according to the hydroponic cultivation method of the present invention was measured at a water temperature of 23° C. using a combo 1 (HI98129) manufactured by Hannah Instruments Japan. The second culture solution was prepared by dissolving 1125 g of OAT House No. 1 (1125 g), OAT House No. 2 (750 g), and OAT House No. 5 (15 g) of OAT Agrio Co., Ltd. in water to make 600 liters. The cultivated plant is leaf lettuce.
The measurement was performed for 7 days before harvesting (26th to 32nd days from the cultivation start day (sowing day)). As a result, the pH of the culture solution did not rise during the measurement period. The measurement results are shown in Table 1.

Figure 2020096567
Figure 2020096567

本発明の水耕栽培方法に使用される水耕栽培装置の設置方法としては、特に限定されず、例えば、管状体を金具等で完全に固定したり、天井から吊り下げるようにしてもよいし、上下から棒状のもので挟み込むように固定した上で可動式にしてもよい。可動式にした場合、管状体等を上下方向又は水平方向に移動させることによって、設置スペースに合わせることができるだけでなく、植物Ｃの種類や栽培者の体格に合った水耕栽培装置とすることができ、より効率的に水耕栽培を行うことができる。 The installation method of the hydroponic cultivation apparatus used in the hydroponic cultivation method of the present invention is not particularly limited, and for example, the tubular body may be completely fixed with metal fittings or may be hung from the ceiling. Alternatively, the rod-shaped members may be fixed from above and below so as to be movable. When it is made movable, not only can it be adjusted to the installation space by moving the tubular body or the like in the vertical direction or in the horizontal direction, but also make it a hydroponic cultivation device that matches the type of plant C and the physique of the grower. Therefore, hydroponic cultivation can be performed more efficiently.

本発明の各実施形態で栽培される植物Ｃとしては、例えば、バジル、サニーレタス等があげられる。 Examples of the plant C cultivated in each embodiment of the present invention include basil, sunny lettuce and the like.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

１，２ 水耕栽培装置
１０，２０ 第１管状体
１１，２１ 第２管状体
１３Ａ，１３Ｂ，２３Ａ，２３Ｂ 給水部
１４Ａ，１４Ｂ，２４Ａ，２４Ｂ 排水部
１５Ａ，１５Ｂ，２５Ａ，２５Ｂ 培養液
１６，２６ 筒状部材
１７Ａ，１７Ｂ，２７Ａ，２７Ｂ 貯水槽
１８，２８ 植物支持部
Ｃ 植物
Ｐ１ａ、Ｐ１ｂ 給水管
Ｐ２ａ，Ｐ２ｂ 排水管
Ｐ３ａ、Ｐ３ｂ 接続管
Ｓ１，Ｓ２ 供給器
Ｗ 通路 1, 2 Hydroponic cultivation apparatus 10, 20 1st tubular body 11, 21 2nd tubular body 13A, 13B, 23A, 23B Water supply part 14A, 14B, 24A, 24B Drainage part 15A, 15B, 25A, 25B Culture solution 16, 26 Cylindrical members 17A, 17B, 27A, 27B Reservoir 18, 28 Plant support C Plants P1a, P1b Water supply pipes P2a, P2b Drainage pipes P3a, P3b Connection pipes S1, S2 Feeder W Passage

Claims (6)

両端が閉止されており、かつ、側面に複数の孔を有し、第１培養液を貯留する遮光性の１以上の第１管状体と、
前記第１管状体と略同じ高さに複数かつ前記第1管状体の本数より多く設けられ、両端が閉止されており、かつ、側面に複数の孔を有し、第２培養液を貯留する遮光性の第２管状体とを備え、前記第２管状体の孔同士の間隔は前記第１管状体の孔同士の間隔より広く、
前記各孔に挿入され、植物の苗を支持する植物支持体を挿入するための開口部を有し、上部にフランジ部を有する遮光性の筒状部材と、
前記第１管状体と前記第２管状体の間の通路とをさらに備える水耕栽培装置を用いた水耕栽培方法であって、
前記第１管状体の孔に、植物の苗を支持する植物支持体が挿入された前記筒状部材を挿入するステップと、
栽培する植物に応じた第１栽培期間を経過した後、前記通路において、前記筒状部材を前記第１管状体から抜き取って、通路を挟んで逆側にある前期第２管状体の孔に挿入するステップと、
第２栽培期間を経過した後、植物を収穫するステップとを含む水耕栽培方法。 One or more light-shielding first tubular body having both ends closed and having a plurality of holes on the side surface and storing the first culture medium,
A plurality of first tubular bodies are provided at substantially the same height as the first tubular body, and more than the number of the first tubular bodies are provided, both ends are closed, and a plurality of holes are formed on the side surface to store the second culture medium. A second light-shielding tubular body is provided, and the distance between the holes of the second tubular body is wider than the distance between the holes of the first tubular body,
Inserted into each of the holes, having an opening for inserting a plant support for supporting a plant seedling, a light-shielding tubular member having a flange portion at the top,
A hydroponic cultivation method using a hydroponic cultivation apparatus further comprising a passage between the first tubular body and the second tubular body,
A step of inserting the tubular member into which a plant support that supports a plant seedling is inserted into the hole of the first tubular body;
After the first cultivation period corresponding to the plant to be cultivated, in the passage, the tubular member is pulled out from the first tubular body and inserted into the hole of the second tubular body on the opposite side across the passage. Steps to
And a step of harvesting the plant after the second cultivation period has elapsed. 前記第１管状体及び前記第２管状体が上下方向に複数段配置されており、上段の前記第１管状体及び前記第２管状体に設けられた各排水部と下段の前記第１管状体及び前記第２管状体の各給水部とが、それぞれ直接又は接続管を介して接続されている水耕栽培装置を用いた請求項１に記載の水耕栽培方法。 The first tubular body and the second tubular body are arranged in a plurality of stages in the vertical direction, each drainage portion provided in the upper first tubular body and the second tubular body, and the lower first tubular body. The hydroponic cultivation method according to claim 1, wherein a hydroponic cultivation apparatus is used in which each of the water supply units of the second tubular body is connected directly or via a connecting pipe. 前記第１管状体及び前記第２管状体と略同じ高さ両側に、下段の水耕栽培装置の植物に光を照射する光源を有する水耕栽培装置を用いた請求項２に記載の水耕栽培方法。 The hydroponic cultivation apparatus according to claim 2, wherein a hydroponic cultivation apparatus having light sources for irradiating the plants of the lower-stage hydroponic cultivation apparatus with light is provided on both sides of the same height as the first tubular body and the second tubular body. Cultivation method. 前記光源の角度を調整する角度調整機構を有する水耕栽培装置を用いた請求項３に記載の水耕栽培方法。 The hydroponic cultivation method according to claim 3, wherein a hydroponic cultivation apparatus having an angle adjusting mechanism for adjusting an angle of the light source is used. 栽培の過程において、ｐＨダウン剤を使用しない請求項１〜４のいずれか１項に記載の水耕栽培方法。 The hydroponic cultivation method according to any one of claims 1 to 4, wherein a pH-lowering agent is not used in the process of cultivation. 植物を収穫した後に植物支持体を取り除き、再利用するために前記筒状部材を６時間から２日間洗浄液に漬けるステップを含む請求項１〜５のいずれか１項に記載の水耕栽培方法。 The hydroponic cultivation method according to any one of claims 1 to 5, comprising a step of immersing the tubular member in a cleaning liquid for 6 hours to 2 days in order to remove the plant support after harvesting the plant and reuse it.
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Publication number Priority date Publication date Assignee Title
CN114885814A (en) * 2021-12-30 2022-08-12 浙江震亚物联网科技有限公司 Plant seed cultivation device and manufacturing method thereof
CN114885814B (en) * 2021-12-30 2023-09-29 浙江震亚物联网科技有限公司 Plant seed cultivation device and manufacturing method thereof

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