JP3189264B2 - Nutrient cultivation method by culture liquid thin film method - Google Patents
Nutrient cultivation method by culture liquid thin film methodInfo
- Publication number
- JP3189264B2 JP3189264B2 JP01784295A JP1784295A JP3189264B2 JP 3189264 B2 JP3189264 B2 JP 3189264B2 JP 01784295 A JP01784295 A JP 01784295A JP 1784295 A JP1784295 A JP 1784295A JP 3189264 B2 JP3189264 B2 JP 3189264B2
- Authority
- JP
- Japan
- Prior art keywords
- cultivation
- planting
- thin film
- culture
- culture solution
- 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.)
- Expired - Lifetime
Links
Classifications
-
- Y02P60/216—
Landscapes
- Hydroponics (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、葉菜類、特にホウレン
ソウ、ツケナ類(例えばコマツナ)の栽培に好適な培養
液薄膜法による養液栽培方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nutrient solution cultivation method using a culture solution thin film method suitable for cultivating leafy vegetables, particularly spinach and tsukena (for example, komatsuna).
【0002】[0002]
【従来の技術】わが国の養液栽培装置設置面積は約70
0haといわれている。これはガラス温室およびビニール
ハウス全面積の約1.1%に相当する。養液栽培は高い
作物生産性、省力性などの理由から毎年70ha前後増加
しており、全体の約40%が湛液型水耕法(DFT
法)、ついで約37%がロックウール栽培、約15%が
培養液薄膜法(NFT法)といった順である。2. Description of the Related Art In Japan, the installation area of a hydroponic cultivation apparatus is about 70.
It is said to be 0ha. This represents about 1.1% of the total area of the glasshouse and greenhouse. Hydroponic cultivation is increasing by about 70 ha every year for reasons such as high crop productivity and labor saving, and about 40% of the total is submerged hydroponic method (DFT).
Method), about 37% is rock wool cultivation, and about 15% is a culture solution thin film method (NFT method).
【0003】特開平6−141714号公報には、培養
液薄膜法による葉菜類の水耕栽培方法に関して、本出願
人によってなされた発明が開示されている。これを図4
(A)によって簡単に説明すると、逆円錐形の植え穴2
を多数穿設した定植パネル板1を栽培ベット槽3の底面
に対向させて配設し、各植え穴2から苗根鉢4を落し込
んで上記栽培ベット槽3の底面に載置し、栽培ベット槽
3内に培養液5を薄膜状に流れるように供給してその苗
根鉢4を生育させ、上記植え穴2内面に沿って葉や葉柄
を伸長肥大させることで下葉を含め株全体をV字状に発
育させるというものである。[0003] JP-A-6-141714 discloses a culture method.
An invention made by the present applicant regarding a hydroponic cultivation method of leafy vegetables by a liquid thin film method is disclosed. This is shown in FIG.
Briefly described by (A), an inverted conical planting hole 2
The a planting panel plate 1 bored many to face the bottom surface of the culture bet tank 3 disposed, crowded dropped Naenehachi 4 from each planting hole 2 is placed on the bottom of the culture bet tank 3, cultivation The seedling pot 4 is grown by feeding the culture solution 5 in a thin film form into the bed tank 3, and the leaves and petiole are elongated and enlarged along the inner surface of the planting hole 2, whereby the whole plant including the lower leaves is grown. Are grown in a V-shape.
【0004】[0004]
【発明が解決しようとする課題】しかし、上記の方法に
よると以下のような不都合がみられた。すなわち栽培ベ
ット槽3に載置された苗根鉢4は培養液5の流れによっ
て洗われるから、根の発育が不十分で根と培土がよく絡
み合っていない苗根鉢4や崩れ易い培土で育成した苗根
鉢4では、培土が洗い出されて苗根鉢4が崩れ、徐々に
沈下したり苗が傾いたりして(図4(B)参照)、整っ
た生育を得ることが難しかった。時には苗が定植パネル
板1の下に沈下して成育不能となったりした(図4
(C)参照)。また洗い出された培土は培養液5の循環
管路内に沈積腐敗して培養液5を汚す原因となった。し
かも、特に葉菜類栽培では多数の苗根鉢4が栽植される
ことになるから、これによって培養液5の自然流下が妨
げられ、液流を停滞気味とさせて上流側と下流側とで培
養液5中の酸素濃度が大きく変化し、生育斑、生育低下
の原因を作ったりした。However, according to the above method, the following inconveniences have been observed. That is, since the seedling pot 4 placed in the cultivation bed tank 3 is washed by the flow of the culture solution 5, it is grown in the seedling pot 4 in which the root growth is insufficient and the root and the soil are not well entangled or in the soil which is easily broken. In the seedling pot 4, the soil was washed out and the seedling pot 4 collapsed, gradually sinking or the seedlings were inclined (see FIG. 4 (B)), and it was difficult to obtain proper growth. At times, the seedlings settled under the planting panel 1 and became unable to grow (FIG. 4).
(C)). In addition, the washed-out soil was deposited and rotted in the circulation line of the culture solution 5 to cause soiling of the culture solution 5. In addition, especially in the cultivation of leafy vegetables, a large number of seedling pots 4 are planted, which prevents the natural flow of the culture solution 5 and makes the liquid flow slightly stagnant. The oxygen concentration in 5 significantly changed, and caused the growth spots and the decrease in growth.
【0005】本発明は、上記した課題を解決するためな
されたものである。The present invention has been made to solve the above-mentioned problems.
【0006】[0006]
【課題を解決するための手段】本発明は、勾配をもたせ
て設置した栽培ベット槽の上に多数の植え穴を穿設した
定植パネル板を置き、上記植え穴から苗根鉢を落し込ん
で栽培ベット槽の底面に載置し、栽培ベット槽底面に培
養液を薄膜状に流すことにより苗根鉢を生育させる培養
液薄膜法による養液栽培方法において、上記栽培ベット
槽底面の上記植 え穴の真下に当る箇所に長手方向に連続
した凸部を複数列形成し、上記凸部の高さは薄膜状培養
液の液面よりも数mm程度高くなし、上記凸部の幅は該凸
部に載置される苗根鉢の直径よりも数mm程度大きくし、
これら凸部と凸部の間の溝に培養液を薄膜状に流すこと
を特徴とするものである。SUMMARY OF THE INVENTION The present invention provides a gradient
Many planting holes were drilled on the cultivation bed tank
Place the planting panel board and drop the seedling pot from the planting hole
Place on the bottom of the cultivation bed tank with
Culture to grow seedling pots by flowing nutrient solution in thin film form
In the nutrient solution cultivation method by the liquid thin film method,
Continuous longitudinally locations hit directly below the planting example holes in the tank bottom
Formed in a plurality of rows, the height of the convex portion is not about several mm higher than the liquid surface of the thin film culture solution, the width of the convex portion is the diameter of the seedling pot placed on the convex portion About several mm larger than
The culture solution is flowed in a thin film into the grooves between these protrusions.
It is characterized by the following.
【0007】上記栽培ベット槽は複数個を長手方向に連
接し、全栽培ベット槽の内面をプラスチックシートで被
覆すると共に、該プラスチックシート上に親水性資材を
敷設するとよい。定植パネル板の植え穴は上下同径の円
筒形として穿設する方が好ましい。It is preferable that a plurality of the cultivation bed tanks are connected in the longitudinal direction, the inner surface of all the cultivation bed tanks is covered with a plastic sheet, and a hydrophilic material is laid on the plastic sheet. Planting hole planting panel plate it is preferable to bored in the cylindrical vertical same diameter.
【0008】[0008]
【作用】作物の苗根鉢は栽培ベット槽に形成した凸部上
面に配置される。培養液はその凸部と凸部の間を薄膜状
に流し、その培養液の液面を凸部の上面より下側とする
ことで、培養液による苗根鉢下側が洗い出されることは
ない。定植パネル板下面と培養液の液面の間は湿気空間
となる。The seedling pot of the crop is placed on the upper surface of the projection formed in the cultivation bed. The culture solution flows in a thin film between the convex portions and the liquid surface of the culture solution is lower than the upper surface of the convex portion, so that the lower side of the seedling pot by the culture solution is not washed out. . A moisture space is formed between the lower surface of the planting panel plate and the liquid surface of the culture solution.
【0009】培養液は親水性資材を通じて凸部6上面に
送れるから、定植後、苗根鉢から伸びた根が溝内の培養
液に達するまでの数日間は親水性資材の働きで適度な湿
り気を与え、苗根鉢を乾燥させない。[0009] Since the culture solution can be sent to the upper surface of the convex portion 6 through the hydrophilic material, after the planting, roots extending from the seedling pot reach the culture solution in the groove for several days by the action of the hydrophilic material to provide appropriate moisture. And do not allow the seedling pots to dry.
【0010】定植パネル板の表側の劣化が進んだときに
は、反転して、裏側を表側として使用する。When the deterioration of the front side of the planted panel board has progressed, it is reversed and the back side is used as the front side.
【0011】[0011]
【実施例】図1は本発明方法を実施するための養液栽培
装置の実施例を示し、図4と同じ部材には同じ符号を付
している。軽量な発泡スチロールで成型される定植パネ
ル板1には多数の植え穴2が穿設されている。定植パネ
ル板1の大きさは、1例を示すと幅60cm、奥行き1
m,厚み35mmである。植え穴2の形状は逆円錐形でも
よいが、上下同径の円筒形とする方がよく、大きさは使
用される苗根鉢4の径よりも大きくする。植え穴2の間
隔は、作物栽培上適正な間隔に決める。例えばホウレン
ソウの場合は、定植パネル板1の大きさが上記のとおり
とすると、直径27mmの円筒状の植え穴2を118mmの
間隔で総数45個菱形状に配列する。1 shows a hydroponic culture for carrying out the method of the present invention .
4 shows an embodiment of the apparatus, and the same members as those in FIG. 4 are denoted by the same reference numerals. A large number of planting holes 2 are formed in a planting panel 1 formed of lightweight polystyrene foam. The size of the planting panel board 1 is, for example, 60 cm in width and 1 in depth.
m, thickness 35 mm. Although the shape of the planting hole 2 may be an inverted conical shape, it is better to be a cylindrical shape having the same diameter in the upper and lower directions, and the size is larger than the diameter of the seedling pot 4 to be used. The interval between the planting holes 2 is determined to be an appropriate interval for crop cultivation. For example, in the case of spinach, assuming that the size of the planting panel board 1 is as described above, a total of 45 cylindrical planting holes 2 having a diameter of 27 mm are arranged in a diamond shape at intervals of 118 mm.
【0012】上記した定植パネル板1,1によって開放
上部が覆われる栽培ベット槽3は、定植パネル板1と同
様、軽量な発泡スチロールにて成型される。図示の例で
は、栽培ベット槽3の両側壁内側に形成した段部9,9
と、底面の中央に形成した受承部10とによって、2枚
の定植パネル板1,1を支持している。栽培ベット槽3
の大きさの1例を示すと、幅1.26m、奥行き1m、
側壁の高さ10cmである。図4と相違する点は、定植パ
ネル板1の植え穴2の真下に当たる底面箇所に長手方向
に連続する凸部6,6…を複数列形成した点である。こ
の凸部6…の高さと幅は、前者は薄膜状培養液の液深と
の関係で決められ、後者は使用される苗根鉢4の径によ
って決められる。凸部6の高さが低すぎると、凸部6の
上に載置した苗根鉢4が培養液5で洗われる虞が増すか
ら好ましくなく、逆に高すぎると苗根鉢4と培養液5の
液面との距離が離れ過ぎて苗根鉢4への水分供給が不足
し勝ちとなって成育を遅らせるから好ましくない。凸部
6の幅が苗根鉢4の直径より狭いと、苗根鉢4が畝状凸
部6からずれ落ちて傾く虞が生じる。望ましくは、凸部
6の高さは培養液5の液深よりも約2〜3mm程度高いも
のであり、凸部6の幅は使用する苗根鉢4の直径よりも
4mm前後広いものである。凸部6,6の間隔は植え穴
2,2間隔と等しい。The cultivation bed tank 3 whose open upper part is covered by the above-described planting panel boards 1 and 1 is formed of lightweight styrofoam similarly to the planting panel board 1. In the illustrated example, steps 9, 9 formed on the inner sides of both sides of the cultivation bed tank 3 are shown.
And the receiving part 10 formed at the center of the bottom surface supports the two planted panel boards 1 and 1. Cultivation bed tank 3
To show an example of the size of 1.26 m wide, 1 m deep,
The height of the side wall is 10 cm. The difference from FIG. 4 is that a plurality of rows of convex portions 6, 6,... That are continuous in the longitudinal direction are formed at a bottom surface portion directly below the planting hole 2 of the planting panel plate 1. The height and width of the projections 6 are determined in the former by the relationship with the liquid depth of the thin-film culture solution, and in the latter by the diameter of the seedling pot 4 to be used. If the height of the projections 6 is too low, the possibility that the seedling pots 4 placed on the projections 6 will be washed with the culture solution 5 increases. It is not preferable because the water supply to the seedling pot 4 is insufficient because the distance from the liquid surface of 5 is too large, which tends to delay the growth. If the width of the convex portion 6 is smaller than the diameter of the seedling pot 4, there is a possibility that the seedling pot 4 is shifted from the ridge-shaped convex portion 6 and tilts. Desirably, the height of the protrusion 6 is about 2 to 3 mm higher than the liquid depth of the culture solution 5, and the width of the protrusion 6 is about 4 mm wider than the diameter of the seedling pot 4 to be used. . The interval between the projections 6 and 6 is equal to the interval between the planting holes 2 and 2.
【0013】実際に設備するには、複数個の栽培ベット
槽3を長手方向に連設し、約 1/80程度の勾配となるよ
うに設置する。この場合、図2に示したように、全内面
をプラスチックシート7で被覆して各連設箇所の漏水を
防止し、要すれば、そのプラスチックシート7上に、
布、紙等の親水性資材8を敷設する。この親水性資材8
は毛管作用によって液を汲み上げるためのものである。In actual installation, a plurality of cultivation bed tanks 3 are connected in the longitudinal direction, and are installed so as to have a gradient of about 1/80. In this case, as shown in FIG. 2, the entire inner surface is covered with a plastic sheet 7 to prevent water leakage at each of the connected portions, and if necessary, on the plastic sheet 7,
A hydrophilic material 8 such as cloth or paper is laid. This hydrophilic material 8
Is for pumping liquid by capillary action.
【0014】つぎに、図3について説明すると、栽培ベ
ット3に定植パネル板1を被せ、苗根鉢4を植え穴2か
ら落し込むことで、苗根鉢4は植え穴2の真下に対峙す
る栽培ベット3の凸部6上に簡単に載置できる。ついで
培養液5を栽培ベット3の上流側より下流側へ向けて凸
部6両脇の溝の部分に流すと、培養液5の流量がベッド
当り10リッター/分のときの溝内液面高さは略2〜3
mmとなる。それは凸部6高さの約半分である。定植パネ
ル板1下面と溝内培養液5の液面との間には高さ25mm
程度の湿気空間が形成されることになる。Next, referring to FIG. 3, the planting panel plate 1 is put on the cultivation bed 3 and the seedling pot 4 is dropped from the planting hole 2 so that the seedling pot 4 faces directly below the planting hole 2. The cultivation bed 3 can be easily placed on the projection 6. Next, when the culture solution 5 is caused to flow from the upstream side to the downstream side of the cultivation bed 3 through the grooves on both sides of the convex portion 6, the liquid level in the groove when the flow rate of the culture solution 5 is 10 liters / minute per bed is obtained. About 2-3
mm. It is about half the height of the projection 6. 25 mm height between the lower surface of the planting panel 1 and the surface of the culture medium 5 in the groove
A degree of moisture space will be formed.
【0015】[0015]
【発明の効果】上記した本発明になる養液栽培方法によ
れば、苗根鉢は培養液の液面上に顕出する凸部上にあ
って、培養液の流れを阻害することはないし、根鉢が洗
い出されることもない。したがって根鉢の崩れや苗の沈
下がなくなり、形状のよい作物生育が得られるほか、洗
い出された培土による管路の目詰まりや病原菌繁殖の問
題も解消される。また、崩れやすい培土でも充分使用で
きることになる。According to the nutrient solution cultivation method according to the present invention described above, the seedling pot is on the convex portion that appears on the liquid surface of the culture solution, and does not hinder the flow of the culture solution. Root bowls are not washed out. Therefore, the collapse of the root mortar and the settlement of the seedlings are eliminated, and the growth of crops having a good shape can be obtained, and the problems of clogging of pipelines and propagation of pathogenic bacteria due to the washed-out soil are also solved. In addition, it can be used even with soil that easily collapses.
【0016】苗根鉢下部から培養液の液面までの距離
は僅かであるから、苗根鉢下部から出た根が畝状凸部両
脇の溝内の培養液中に容易に伸びることができて、培養
液中の肥料成分、水分、酸素を吸収する。一方、根鉢側
面は湿気空間と接触するため、根鉢側面からは根毛を多
数有する湿気中根を盛んに発生して空中酸素を吸収す
る。特にホウレンソウの成育には好気的な根圏環境を作
ることが大切であるといわれているが、その要望に適す
る環境を提供し生育に資せしめる。Since the distance from the lower part of the seedling pot to the liquid surface of the culture solution is small, the roots emerging from the lower part of the seedling pot easily extend into the culture solution in the grooves on both sides of the ridge-shaped convex part. It absorbs fertilizer components, water and oxygen in the culture solution. On the other hand, since the side of the root pot comes into contact with the moisture space, the roots of the root root actively generate moisture roots having many root hairs to absorb air oxygen. In particular, it is said that it is important to create an aerobic rhizosphere environment for the growth of spinach, but it will provide an environment that meets the demand and contribute to the growth.
【0017】3栽培ベット面に敷設した親水性資材
は、定植後、苗根鉢から伸びた根が培養液に達するまで
の数日間、同資材を通じて培養液を苗根鉢に送り、適度
な湿り気を与え、苗根鉢の乾燥を防ぐ。また、培養液循
環系の故障等で液面が降下したときでも、上記親水性資
材の働きで生育に支障を与えないよう培養液を供給する
ことができる。3) After the planting, the hydrophilic material laid on the cultivation bed surface is transferred to the seedling pot through the same material for several days after planting until the roots extending from the seedling pot reach the culture solution, and the moisture is appropriately moistened. To prevent drying of the seedling pot. Further, even when the liquid level drops due to a failure of the culture solution circulation system or the like, the culture solution can be supplied so as not to hinder the growth by the action of the hydrophilic material.
【0018】植え穴の形状を円筒形として表裏の別を
なくすことで、定植パネル板の設置作業で表裏判別の必
要がなくなって作業効率がよくなるばかりでなく、太陽
光に暴露された表側が劣化したときには反転させて、そ
れまでは裏側であった面を表側として使用することで定
植パネル板の使用寿命の延長を図ることができる。Eliminating the distinction between the front and back by making the shape of the planting holes cylindrical eliminates the need for discrimination between the front and back in the installation work of the planting panel board, not only improving the work efficiency but also deteriorating the front side exposed to sunlight. When this is done, the life of the planting panel board can be prolonged by reversing it and using the surface that was the back side as the front side.
【図1】 本発明方法の実施に使用する養液栽培装置の
一実施例を示す斜視図である。FIG. 1 is a perspective view showing one embodiment of a hydroponic cultivation apparatus used for carrying out the method of the present invention.
【図2】 栽培ベット槽の内面に設けられるプラスチッ
クシートと親水性資材を示す断面図である。FIG. 2 is a sectional view showing a plastic sheet and a hydrophilic material provided on the inner surface of a cultivation bed tank.
【図3】 図1の装置の使用状態を示す断面図である。FIG. 3 is a sectional view showing a use state of the apparatus of FIG. 1;
【図4】 従来例を示す断面図であって、(A)は苗根
鉢下部が培養液によって洗われる状態、(B)は苗根鉢
が崩れて傾いた状態、(C)は定植パネル板の下に沈下
した状態を夫々示している。4A and 4B are cross-sectional views showing a conventional example, wherein FIG. 4A shows a state where a lower part of a seedling pot is washed by a culture solution, FIG. 4B shows a state where a seedling pot is collapsed and tilted, and FIG. Each shows a state of sinking below the plate.
1は定植パネル板 2は植え穴 3は栽培ベット槽 4は苗根鉢 5は培養液 6は凸部 7はプラスチックシート 8は親水性資材 1 is a planting panel board 2 is a planting hole 3 is a cultivation bed tank 4 is a seedling pot 5 is a culture solution 6 is a convex portion 7 is a plastic sheet 8 is a hydrophilic material
Claims (3)
の上に多数の植え穴を穿設した定植パネル板を置き、上
記植え穴から苗根鉢を落し込んで栽培ベット槽の底面に
載置し、栽培ベット槽底面に培養液を薄膜状に流すこと
により苗根鉢を生育させる培養液薄膜法による養液栽培
方法において、上記栽培ベット槽底面の上記植え穴の真
下に当る箇所に長手方向に連続した凸部を複数列形成
し、上記凸部の高さは薄膜状培養液の液面よりも数mm程
度高くなし、上記凸部の幅は該凸部に載置される苗根鉢
の直径よりも数mm程度大きくし、これら凸部と凸部の間
の溝に培養液を薄膜状に流すことを特徴とする培養液薄
膜法による養液栽培方法。1. A cultivation bed tank set up with a gradient
Place a planting panel with a large number of planting holes on the
Seedling pots are dropped from the planting holes to the bottom of the cultivation bed.
Put the culture solution on the bottom of the cultivation bed tank
Nutrient cultivation by the culture liquid thin film method to grow seedling pots by cultivation
In the method, the bottom of the planting hole on the bottom of the cultivation bed
Form multiple rows of convex parts continuous in the longitudinal direction at the bottom
And, the height of the convex portions without several mm higher than the liquid level of the thin film culture, the width of the convex portion is larger several mm than the diameter of Naenehachi placed on convex portions , Between these convex parts
Culture medium characterized by flowing the culture medium in a thin film into the groove
Hydroponic cultivation method by membrane method .
に連接し、全栽培ベット槽の内面をプラスチックシート
で被覆すると共に、該プラスチックシート上に親水性資
材を敷設することを特徴とする請求項1に記載の養液栽
培方法。 2. A connecting a plurality of the cultivation bet tank in the longitudinal direction, the inner surface of the entire cultivation bet bath while covered with a plastic sheet, hydrophilic capital onto the plastic sheet
The method for cultivating nutrient solution according to claim 1, wherein a material is laid.
の円筒形として穿設することを特徴とする請求項1に記
載の養液栽培方法。3. A hydroponics method according to claim 1, characterized in that drilling in a cylindrical vertical same diameter the planting hole of the planting panel plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01784295A JP3189264B2 (en) | 1995-02-06 | 1995-02-06 | Nutrient cultivation method by culture liquid thin film method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01784295A JP3189264B2 (en) | 1995-02-06 | 1995-02-06 | Nutrient cultivation method by culture liquid thin film method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08205700A JPH08205700A (en) | 1996-08-13 |
JP3189264B2 true JP3189264B2 (en) | 2001-07-16 |
Family
ID=11954933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01784295A Expired - Lifetime JP3189264B2 (en) | 1995-02-06 | 1995-02-06 | Nutrient cultivation method by culture liquid thin film method |
Country Status (1)
Country | Link |
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JP (1) | JP3189264B2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPP326198A0 (en) * | 1998-05-01 | 1998-05-21 | Ducker, Clive M. | Hydroponic drainage channel |
AU741585B2 (en) * | 1998-05-01 | 2001-12-06 | Clive Melville Ducker | Hydroponic drainage channel |
AU2013367876B2 (en) * | 2012-12-28 | 2017-05-25 | Mitsubishi Chemical Aqua Solutions Co., Ltd | Nutriculture member and nutriculture method |
JP6206802B2 (en) * | 2013-09-11 | 2017-10-04 | パナソニックIpマネジメント株式会社 | Hydroponics equipment |
AU2015262785A1 (en) * | 2014-05-21 | 2016-11-24 | Mitsubishi Plastics Agri Dream Co., Ltd. | Plant cultivation method and equipment |
JP2017143801A (en) * | 2016-02-18 | 2017-08-24 | 三菱ケミカル株式会社 | Plant cultivation method |
JP6717043B2 (en) * | 2016-05-12 | 2020-07-01 | 三菱ケミカル株式会社 | Plant cultivation method |
JP2018057355A (en) * | 2016-10-05 | 2018-04-12 | 三菱ケミカル株式会社 | Plant cultivation method |
JP6986838B2 (en) * | 2016-12-16 | 2021-12-22 | 三菱ケミカル株式会社 | Plant cultivation method |
JP2019135975A (en) * | 2018-02-09 | 2019-08-22 | 三菱ケミカル株式会社 | Plant cultivation method |
-
1995
- 1995-02-06 JP JP01784295A patent/JP3189264B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH08205700A (en) | 1996-08-13 |
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