JP4364104B2 - How to grow yam - Google Patents

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JP4364104B2
JP4364104B2 JP2004323331A JP2004323331A JP4364104B2 JP 4364104 B2 JP4364104 B2 JP 4364104B2 JP 2004323331 A JP2004323331 A JP 2004323331A JP 2004323331 A JP2004323331 A JP 2004323331A JP 4364104 B2 JP4364104 B2 JP 4364104B2
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inclined surface
synthetic resin
soil
yam
resin film
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勝 内田
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本発明は、山芋類のうち太長の芋根を有する自然薯やナガイモなどの栽培方法に関する。   The present invention relates to a method for cultivating natural cocoons, yams, and the like having thick long roots among yams.

従来、この種の山芋類栽培技術としては筒状栽培器を用いたものが数多く知られているが、そのうちのひとつが例えば下記の特許文献１に開示されている。文献１開示の技術では、筒状栽培器を適宜傾けた姿勢にして栽培地に埋め、各筒状栽培器内にそれぞれ個別に山芋類の種芋を植えて栽培するようにしている。
しかしながら、筒状栽培器の埋込作業、種芋の植え付け作業、収穫作業などは、各筒状栽培器につきそれぞれ個別に手で取り扱わなければならない。そのために、これらの作業は機械化することができず重労働であった。また、栽培本数を多くしようとすると多数の筒状栽培器が必要となって材料コストが高騰することと、前記した機械化が困難な事情とを合せて、大量生産に不向きであった。 Conventionally, as this kind of mountain cultivating technique, many using a cylindrical cultivator are known, and one of them is disclosed in Patent Document 1 below, for example. In the technique disclosed in Document 1, the cylindrical cultivator is appropriately tilted and buried in the cultivated land, and seeds of yam are planted and cultivated individually in each cylindrical cultivator.
However, the cylindrical cultivator embedding operation, seed planting operation, harvesting operation, etc. must be handled individually by hand for each cylindrical cultivator. For this reason, these operations could not be mechanized and were hard labor. Moreover, when trying to increase the number of cultivated trees, a large number of cylindrical cultivators are required, so that the material cost increases, and the above-mentioned circumstances in which mechanization is difficult are unsuitable for mass production.

一方で、板材を用いた栽培技術も数多く知られており、そのうちのひとつが例えば下記の特許文献２に提案されている。文献２開示の技術は、上面が開口した平箱内に、波板材を傾けた姿勢で収容し、波板材の上面に土を被せ、土と波板材の間に山芋類の種芋を植え付けて栽培するものである。   On the other hand, many cultivation techniques using plate materials are also known, and one of them is proposed, for example, in Patent Document 2 below. In the technology disclosed in Document 2, the corrugated sheet material is accommodated in a flat box with an open upper surface, and the corrugated sheet material is covered with soil, and cultivated by planting yam seeds between the soil and the corrugated sheet material. To do.

特開平１１−２３９４１４号公報（公報中の図３参照）Japanese Patent Laid-Open No. 11-239414 (see FIG. 3 in the publication)

特開２００３−１６４２２３号公報（公報中の図１参照）JP 2003-164223 A (see FIG. 1 in the publication)

ところが、文献２に開示されたものは平箱内での栽培であるので、一般家庭やマンションでの栽培には適するが、各平箱内で栽培し得る山芋類の数は多くない。そのために材料コスト当たりの収穫量が小さく、業としての大量生産に適さない。また、板材は基本的に定形であるため、地形の変化に富む野外の栽培地で使用する場合に柔軟に対応できないことがあった。
本発明は、上記した従来の問題点に鑑みてなされたものであって、簡素な構成により、重労働を強いることなく大量生産向きで安価な山芋類の栽培方法の提供を目的とする。 However, since what is disclosed in Document 2 is cultivation in a flat box, it is suitable for cultivation in ordinary households and condominiums, but there are not many yams that can be cultivated in each flat box. Therefore, the yield per material cost is small and it is not suitable for mass production as a business. In addition, since the plate material is basically a fixed shape, it may not be able to respond flexibly when used in outdoor cultivated land rich in topographical changes.
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an inexpensive method for cultivating potatoes that is suitable for mass production without requiring heavy labor with a simple configuration.

上記目的を達成するために、本発明に係る山芋類の栽培方法は、基体の表面に形成された傾斜面を、該傾斜面に応じて撓み変形する程度の可撓性を有する合成樹脂製フィルムで被い、該合成樹脂製フィルム上に山芋種材を置き、該山芋種材および合成樹脂製フィルムに土を被せて栽培する構成にしてある。 In order to achieve the above-mentioned object, the method for cultivating yams according to the present invention is a synthetic resin film having flexibility to the extent that the inclined surface formed on the surface of the substrate is bent and deformed according to the inclined surface. The corn seed material is placed on the synthetic resin film , and the corn seed material and the synthetic resin film are covered with soil.

また、本発明に係る別の栽培方法は、基体の表面に形成された傾斜面を、該傾斜面に応じて撓み変形する程度の可撓性を有する合成樹脂製フィルムで被う第１工程と、合成樹脂製フィルム上に山芋種材を置く第２工程と、山芋種材および合成樹脂製フィルムに土を被せる第３工程と、第３工程で被せられた土の表面に前記第１工程の傾斜面とほぼ同じ傾斜角度の傾斜面を形成する第４工程と、該第４工程で形成された土の傾斜面を前記合成樹脂製フィルムで被う第５工程とを備えてなり、該第５工程に続いて、前記第２工程から第５工程までの各工程を順に繰り返して造成した栽培地で栽培するものである。 Further, another cultivation method according to the present invention includes a first step of covering the inclined surface formed on the surface of the substrate with a synthetic resin film having flexibility to the extent that the inclined surface is bent and deformed according to the inclined surface. a second step of placing the yam species material on a synthetic resin film, a third step of covering the soil yam species material and synthetic resin film, of the on the surface of the soil was covered in the third step the first step A fourth step of forming an inclined surface having substantially the same inclination angle as the inclined surface, and a fifth step of covering the inclined surface of the soil formed in the fourth step with the synthetic resin film . Following the fifth step, cultivation is carried out in a cultivation area created by repeating the steps from the second step to the fifth step in order.

また、前記した各構成において、傾斜面が、その傾斜方向と直交する水平方向に平たんに形成されているものである。In each of the above-described configurations, the inclined surface is formed flat in a horizontal direction orthogonal to the inclination direction.

そして、本発明に係る他の栽培方法は、エアーを噴き出すエアコンプレッサと、エアコンプレッサのエア吹出口に接続されたエアチューブと、土砂を搬送するための可撓ホースとを備え、可撓ホースの土砂吸取り側である一端部内に、エアチューブ先端の先細ノズルが可撓ホースの他端部に向けてエアーを噴き出して土砂を搬送するように配備されて成る土砂移送装置を用いて、山芋種材および合成樹脂製フィルムに被せられていた土を別の栽培地に移送するものである。The other cultivation method according to the present invention includes an air compressor that blows out air, an air tube connected to an air outlet of the air compressor, and a flexible hose for transporting earth and sand. Using a sediment transport device, in which the tapered nozzle at the tip of the air tube is arranged to blow out air toward the other end of the flexible hose and transport the sediment in one end on the sediment suction side, And the soil covered with the synthetic resin film is transferred to another cultivated land.

ここで、本発明にいう山芋類はヤマノイモ科ヤマノイモ属植物のうち太長の芋根を有するものであり、かかるものとしては例えばヤマノイモ（自然薯）とナガイモが知られている。また、本発明にいう山芋種材は、土に埋めて栽培することにより山芋類に生長するものであればよく、自然薯の場合は芋根の一部を細かく切った種芋、または山などに自生する自然薯の葉脇に生じたムカゴであり、ナガイモの場合は前記の種芋である。   Here, the yam referred to in the present invention has a long and long root of the plant belonging to the genus Yamno, which includes, for example, yam (natural moth) and Chinese yam. In addition, the yam seed material referred to in the present invention is not limited as long as it grows into yam by cultivating it by burying it in soil. It is a mugwort that is produced on the side of the leaf of a natural cocoon.

傾斜面を有する基体としては、例えば農地の栽培土、山土、山砂などを使用することが山芋類を確実かつ大きく生長させ得る点で好ましい。但し、金属製、合成樹脂製、または木製であって、傾斜面付きの板体や箱体を基体として使用することも可能である。
傾斜面の傾斜角度は、山芋種材から生じた根がひげ状の吸収根だけとならず太長の芋根を生じる角度であれば特に限定されない。かかる角度は、例えば２５〜５０度である。傾斜角度が２５度を下回ると、ひげ状の吸収根を生じる割合が大きくなり例え芋根を生じてもその生長度合いは芳しくない。５０度を上回ると、シート体および山芋種材を被う土の搬入および取り出しに手間がかかって収穫しづらくなる。 As the substrate having an inclined surface, for example, it is preferable to use cultivated soil, mountain soil, mountain sand or the like of farmland from the viewpoint of reliably and greatly growing yam. However, it is also possible to use a plate body or box body made of metal, synthetic resin, or wood with an inclined surface as a base.
The inclination angle of the inclined surface is not particularly limited as long as the root generated from the yam seed material is not only a whisker-shaped absorption root but also a thick long root. Such an angle is, for example, 25 to 50 degrees. When the inclination angle is less than 25 degrees, the ratio of generating a beard-like absorption root increases, and even if a root is formed, the degree of growth is not good. When it exceeds 50 degrees, it takes time to carry in and take out the soil covering the sheet body and the yam seed material, making it difficult to harvest.

本発明に用いる合成樹脂製フィルムとしては、傾斜面に応じて撓み変形する程度の可撓性を有し、施工が容易で、かつ、耐久性の高いものであれば特に限定されないが、山芋類が生長の途中で突き破ったり細根が入り込んだりすることのない強度を備えていることが望ましい。このようなフィルムとしては厚さが例えば０．１〜０．５ｍｍ程度のものである。かかる厚みを採用することにより、生長途中で吸収根や芋根の細根がフィルムに絡みつき収穫時に山芋類を合成樹脂製フィルムから離すことが困難となって作業に手間および時間がかかるといった不具合や、収穫後の合成樹脂製フィルムを次回の栽培に繰り返し使用できないといった不具合が回避される。 The synthetic resin film used in the present invention has a degree of flexibility to bending deformation in accordance with the inclined surface, construction is easy, and is not particularly limited as long as durable, mountain potatoes it is desirable that the kind is provided with the name strong degree of that intrude the rootlets or breaks through in the middle of growth. Such a film has a thickness of, for example, about 0.1 to 0.5 mm . By adopting or mow Thickness, fine roots of absorption roots and Imone in the middle of growth went to the effort and time it takes to work making it difficult to separate the yam class at the time of harvest entangled in the fill-time from a synthetic resin film Problems such as defects and the inability to repeatedly use the synthetic resin film after harvesting for the next cultivation are avoided.

合成樹脂製フィルムの材料である合成樹脂の種類は特に限定されないが、例えばポリ塩化ビニル、ポリエチレン、ポリプロピレン、ポリエステルなどが入手容易で安価であり好適である。合成樹脂製フィルムは水密性であっても透水性であっても構わない。
山芋種材を置く合成樹脂製フィルム上の位置は特に限定されないが、山芋種材を置く位置よりも下方に、生長した山芋類がはみ出さない程度の育成領域を確保しておくとよい。山芋種材は合成樹脂製フィルムの上面に直に置いてよいし、合成樹脂製フィルムとの間に少量の土を介して置いても構わない。 The kind of the synthetic resin that is the material of the synthetic resin film is not particularly limited. For example, polyvinyl chloride, polyethylene, polypropylene, polyester, and the like are easily available, inexpensive, and preferable. The synthetic resin film may be watertight or water permeable.
The position on the synthetic resin film on which the yam seed material is placed is not particularly limited, but it is preferable to secure a growing region below the position where the yam seed material is placed so that the grown yam does not protrude. Yam species material may be placed directly on the top surface of the synthetic resin film, it may be placed through a small amount of soil between the synthetic resin film.

本発明に係る山芋類の栽培方法によれば、可撓性を有する合成樹脂製フィルムで傾斜面を被い、合成樹脂製フィルム、および、合成樹脂製フィルム上に置いた山芋種材に土を被せて栽培するので、主材料が合成樹脂製フィルムだけであり、構成が簡素で安価に済む。また、傾斜面と直交する横方向に沿って合成樹脂製フィルムのどの位置であっても山芋種材を所望の間隔で置くことができるので栽培の自由度が高い。そして、合成樹脂製フィルムが可撓性を有するので、傾斜面が傾斜方向またはその直交方向に湾曲していても、その曲面状態に対応して傾斜面を適切に被うことができ、重労働を強いることなく山芋類を大量に生産することができる。 According to the method for cultivating yam according to the present invention, a synthetic resin film having flexibility covers an inclined surface, and the synthetic resin film , and soil on the yam seed material placed on the synthetic resin film since the cultivation covered, is the main material is only the synthetic resin fill-time, configuration is a simple low cost requires. Moreover, since the yam seed material can be placed at a desired interval at any position of the synthetic resin film along the lateral direction perpendicular to the inclined surface, the degree of freedom in cultivation is high. And since the synthetic resin film has flexibility, even if the inclined surface is curved in the inclined direction or the direction orthogonal thereto, the inclined surface can be appropriately covered according to the curved surface state, and heavy labor is required. Can produce a large amount of yam without being forced.

また、本発明の別の栽培方法によれば、合成樹脂製フィルム上に山芋種材を置く工程から土の傾斜面を合成樹脂製フィルムで被う工程までの各工程を順に繰り返して栽培地を造成するので、狭い栽培地であっても、より大量の山芋類を効率よく生産することができる。 Further, according to another cultivation method of the present invention, the cultivation of the respective steps of the step of placing the yam species material on the synthetic resin film to the step of covering the inclined surface of the soil with a synthetic resin film repeatedly in order Since it is constructed, a larger amount of yam can be efficiently produced even in a narrow cultivation area.

本発明の最良の実施形態を図面に基づいて説明する。尚、以下に述べる実施形態は本発明を具体化した一例に過ぎず、本発明の技術的範囲を限定するものでない。ここに、図１は本発明の一実施形態に係る山芋類の栽培手順を図（ａ）〜（ｆ）に順に示した部分側断面図、図２は図１（ａ）〜（ｆ）に示した栽培手順に対応する（ａ）〜（ｆ）に平面で示した部分平面図である。
この実施形態に係る山芋類の栽培方法を図１および図２を基に説明する。まず、各図（ａ）のように、例えば栽培地の土１を耕運機などでならし、鍬などを用いて矢印Ｅ方向に下降する傾斜面２を形成する。傾斜面２の傾斜角度θはこの例では３０度にしてある。傾斜面２の垂直高さは例えば４５ｃｍである。 The best embodiment of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention. Here, FIG. 1 is a partial side cross-sectional view sequentially showing the cultivation procedures of yams according to one embodiment of the present invention in FIGS. 1 (a) to (f), and FIG. 2 is shown in FIGS. 1 (a) to 1 (f). It is the partial top view shown by the plane to (a)-(f) corresponding to the shown cultivation procedure.
A method for cultivating yam according to this embodiment will be described with reference to FIGS. 1 and 2. First, as shown in each figure (a), for example, the soil 1 of the cultivation area is leveled with a cultivator or the like, and the inclined surface 2 descending in the direction of arrow E is formed using a straw or the like. The inclination angle θ of the inclined surface 2 is 30 degrees in this example. The vertical height of the inclined surface 2 is 45 cm, for example.

次に、各図（ｂ）のように、傾斜面２の表面にシート体３を被せて表面全体を被う。シート体３としては、例えば０．３ｍｍ厚のポリエチレンフィルムを用いた。尚、シート体３は必ずしも傾斜面２だけを被うものに限らず、例えば土１表面の最上部に達したり、あるいは傾斜面２から続く土１の上面１Ａまで届く大きさであっても構わない。
そして、各図（ｃ）のように、山芋種材としてのムカゴ４をシート体３の上端近くに置く。シート体３上のムカゴ４，４，４，・・・は傾斜面２の傾斜と直交する横方向（矢印Ｆ方向、図２（ａ）参照）に適宜の間隔で多数が配置される。因みに、１坪当たり１００個程度のムカゴ４，４，４，・・・を植えると、多すぎず少なすぎず大量生産に好適となる。このようなムカゴ４，４，４，・・・は山間部などに自生している野生の自然薯から予め採取しておく。 Next, as shown in each figure (b), the surface of the inclined surface 2 is covered with the sheet body 3 to cover the entire surface. As the sheet body 3, for example, a polyethylene film having a thickness of 0.3 mm was used. Note that the sheet body 3 is not necessarily limited to the one that covers only the inclined surface 2, and may have a size that reaches the top of the surface of the soil 1 or reaches the upper surface 1 </ b> A of the soil 1 that continues from the inclined surface 2. Absent.
Then, as shown in each figure (c), a mugago 4 as a yam seed material is placed near the upper end of the sheet body 3. Sheet 3 on the propagule 4,4,4, ... are transverse direction perpendicular to the inclination of the inclined face 2 a number at appropriate intervals (arrow F direction, see FIG. 2 (a)) are arranged. Incidentally, planting about 100 mugago 4, 4, 4,... Per tsubo is suitable for mass production without being too much and not too little. Such coconut shells 4, 4, 4,... Are collected in advance from wild natural pods that grow naturally in mountainous areas.

続いて、各図（ｄ）のように、ムカゴ４およびシート体３の上に土５を被せて、ムカゴ４およびシート体３を埋め込む。ここで用いる土５としては畑地などの栽培土、山土、山砂などが挙げられるが、自然薯が自生している山土や山砂を使用すると栽培がうまくいく。尚、図示は省略するが、ムカゴ４を植えた位置の近くに、蔓支持用の縦支柱や縦ネットが設置される。
そうして、適切な水遣りと施肥を施して栽培すると、各図（ｅ）のように、ムカゴ４から吸収根６と芽が生じ、芽は茎７となって上方に伸びていく。そのうち、根のひとつが芋根８となり、植物の背地性に従いシート体３に沿って斜め下向きに生長していく。上記の施肥には、地下水の窒素汚染による自然破壊につながらないよう、有機肥料を使用することが望ましい。
その後、各図（ｆ）のように、吸収根６が伸び、茎７の上部は蔓９となり近くの縦支柱や縦ネットに絡まって約２ｍの高さに生長する。前記の芋根８は伸長して肥大し自然薯１０となる。因みに、製品として出荷し得る大きさの自然薯１０になるまでには、ムカゴ４から約３年かかる。 Subsequently, as shown in each figure (d), the soil 5 is placed on the mugago 4 and the sheet body 3 to embed the mugago 4 and the sheet body 3. The soil 5 used here includes cultivated soil such as cultivated land, mountain soil, and mountain sand, but cultivation is successful when using mountain soil or mountain sand in which natural selection is native. In addition, although illustration is abbreviate | omitted, the vertical support | pillar for supporting a vine and a vertical net are installed near the position which planted the coconut shell 4.
Then, when appropriate watering and fertilization are applied, the roots 6 and buds are formed from the mugago 4 as shown in each figure (e), and the buds become stems 7 and extend upward. Among them, one of the roots becomes the root 8 and grows obliquely downward along the sheet body 3 according to the background of the plant. For the above fertilization, it is desirable to use organic fertilizer so as not to cause natural destruction due to nitrogen contamination of groundwater.
Thereafter, as shown in each figure (f), the absorption root 6 grows, and the upper part of the stem 7 becomes a vine 9 and grows to a height of about 2 m entangled with a nearby vertical support or a vertical net. The root 8 is elongated and enlarged to become a natural ridge 10. By the way, it takes about 3 years from Mukago 4 to become a natural bag 10 of a size that can be shipped as a product.

自然薯１０を収穫する際には、各図（ｆ）の土５を全量取り除き、自然薯１０を持ち上げてシート体３から離す。その場合、シート体３の表面は平たんな滑面であるために、栽培中に自然薯１０表面の細根や吸収根６がシート体３に絡んでいない。従って、自然薯１０を円滑かつ容易にシート体３から引き離すことができる。
そして、地表に現われたシート体３は次回の栽培にそのままに用いることができる。尚、シート体３は土中に埋められて使用されるために日光による劣化を受けにくいことから、２〜３年はそのまま繰り返して使用できる。あるいは、使用後のシート体３を土１の傾斜面２から取り外して、他の栽培地の傾斜面で再使用することも可能である。
そうして、収穫した自然薯１０は水洗いされるが、図３に示すように、茎７に近い芋根の部分が２点鎖線Ｄで示した位置で切断されて、芋製品１０Ａと種芋１０Ｂに分けられる。種芋１０Ｂは次年度栽培の山芋種材として直ちに使用され、１年で自然薯１０に生長する。芋製品１０Ａは腐り止めとして切り口がガスバーナで焼かれたのちに出荷される。 When harvesting the natural selection 10, all the soil 5 in each figure (f) is removed, and the natural selection 10 is lifted away from the sheet body 3. In that case, since the surface of the sheet body 3 is a flat smooth surface, the fine roots and absorption roots 6 on the surface of the natural pod 10 are not entangled with the sheet body 3 during cultivation. Therefore, the natural selection 10 can be pulled away from the sheet body 3 smoothly and easily.
And the sheet | seat body 3 which appeared on the ground surface can be used as it is for the next cultivation. In addition, since the sheet | seat body 3 is buried in the soil and used, since it is hard to receive deterioration by sunlight, it can be used as it is for 2 to 3 years as it is. Or it is also possible to remove the sheet body 3 after use from the inclined surface 2 of the soil 1 and reuse it on the inclined surface of other cultivated land.
Then, the harvested natural cocoon 10 is washed with water, but as shown in FIG. 3, the portion of the ridge near the stem 7 is cut at the position indicated by the two-dot chain line D to form the cocoon product 10A and the seed pod 10B. Divided. The seed pod 10B is immediately used as a yam seed material cultivated in the next year, and grows into a natural pod 10 in one year. The smoked product 10A is shipped after the cut end is baked with a gas burner as anti-corrosion.

上記したように、この実施形態による栽培方法によれば、傾斜面２とシート体３を用いた簡素な構成により、多大な手間をかけることなく自然薯１０を大量に生産、販売することができる。主材料は、合成樹脂製フィルムであるシート体３だけでよいので、材料コストが安価で済む。また、既述したようにムカゴ４から最初の自然薯１０を得るまでに３年かかるが、いったん自然薯１０を収穫すれば、４年目以降は自然薯１０の茎に近い部分を種芋１０Ｂとして用いることにより自然薯１０を１年ごとに収穫できる。従って、その後は種芋を別途購入する必要がなく、山芋種材のコストがほとんどかからない。そして、シート体３の長手方向（矢印Ｆ方向）のどの場所でも山芋種材４，１０Ｂを所望の間隔で並べることができるので、従来技術のように複数の筒状栽培器に個々に山芋種材を収容しなければならないといったことがなく、栽培の自由度が高い。また、地形の変化に富む野外の傾斜面であっても、シート体３が可撓性を有するので、傾斜面の状態に応じて傾斜面を確実に被うことができる。 As described above, according to the cultivation method according to this embodiment, natural cocoons 10 can be produced and sold in large quantities without taking a lot of time and effort with a simple configuration using the inclined surface 2 and the sheet body 3. The main material, it is only the seat body 3 is a synthetic resin film, the material cost requires only inexpensive. In addition, as described above, it takes three years to obtain the first natural pod 10 from the mugago 4, but once the natural pod 10 is harvested, the portion close to the stem of the natural pod 10 is used as the seed pod 10B after the fourth year. Natural pods 10 can be harvested every year. Therefore, after that, it is not necessary to purchase the seed potatoes separately, and the cost of the potato seed material is hardly increased. And since the potato seed materials 4 and 10B can be arranged at a desired interval in any place in the longitudinal direction (arrow F direction) of the sheet body 3, the potato seeds are individually added to a plurality of cylindrical cultivators as in the prior art. There is no need to house timber and the degree of freedom of cultivation is high. Moreover, even if it is an outdoor inclined surface rich in terrain changes, since the sheet body 3 has flexibility, the inclined surface can be reliably covered according to the state of the inclined surface.

次に、本発明の別の実施形態に係る栽培方法を、図４および図５により説明する。この場合、図４は栽培初期の状態を示し、図５は収穫期の状態を示している。土１およびその傾斜面２ａは、図１および図２に示した土１および傾斜面２と同じものである。栽培地Ｓの外方（矢印Ｆ方向）には支柱１１，１１が対で立設され、これらの支柱１１，１１間にネット１２が栽培地Ｓを横切るように張架されている。この例では、２枚のシート体３，３につき、１枚のネット１２が設置される。   Next, the cultivation method which concerns on another embodiment of this invention is demonstrated with FIG. 4 and FIG. In this case, FIG. 4 shows the initial cultivation state, and FIG. 5 shows the harvesting state. The soil 1 and the inclined surface 2a thereof are the same as the soil 1 and the inclined surface 2 shown in FIGS. The support | pillars 11 and 11 are standingly arranged by the outer side (arrow F direction) of the cultivation field S, and the net | network 12 is stretched across these cultivation fields S between these support | pillars 11 and 11. FIG. In this example, one net 12 is installed for two sheet bodies 3 and 3.

この実施形態でも、まず土１の表面に傾斜面２が形成され、傾斜面２の表面にシート体３が被せられて傾斜面２全体が被われる（第１工程）。続いて、多数のムカゴ４，４，４，・・・がシート体３の上端近傍位置において矢印Ｆ方向に適宜の間隔で配置される。次に、ムカゴ４およびシート体３の上に１番目の土５ａが被せられる（第３工程）。そして、傾斜面２ａ下降方向（矢印Ｅ方向）の下流側の土５ａの面がならされて、傾斜面２ａと平行な傾斜面２ｂが形成される（第４工程）。この傾斜面２ｂの表面にシート体３が被せられて傾斜面２ｂ全体が被われる（第５工程）。このシート体３の上端近傍位置に、ムカゴ４，４，４，・・・が矢印Ｆ方向に適宜の間隔で載置される。次に、ムカゴ４，４，４，・・・およびシート体３の上に２番目の土５ｂが被せられ、ムカゴ４およびシート体３が埋め込まれる。   Also in this embodiment, first, the inclined surface 2 is formed on the surface of the soil 1, and the sheet body 3 is covered on the surface of the inclined surface 2 to cover the entire inclined surface 2 (first step). Subsequently, a large number of lumps 4, 4, 4,... Are arranged at appropriate intervals in the direction of the arrow F at positions near the upper end of the sheet body 3. Next, the first soil 5a is placed on the mugago 4 and the sheet body 3 (third step). Then, the surface of the soil 5a on the downstream side in the descending direction of the inclined surface 2a (arrow E direction) is smoothed to form an inclined surface 2b parallel to the inclined surface 2a (fourth step). The sheet body 3 is put on the surface of the inclined surface 2b to cover the entire inclined surface 2b (fifth step). .. Are placed at appropriate intervals in the direction of arrow F at positions near the upper end of the sheet body 3. Next, the second soil 5b is put on the mugago 4, 4, 4,... And the sheet body 3, and the mugago 4 and the sheet body 3 are embedded.

以後、前記した傾斜面２ｂの形成から土５ｂの被覆に至る一連の工程（第２工程から第５工程までの工程）が繰り返され、傾斜面２ｃ，２ｄ，２ｅの形成および土５ｃ，５ｄ，５ｅの被覆がそれぞれ順に実施されて栽培地Ｓが造成される。この場合、或る傾斜面（例えば２ｂ）の下端は次なる（矢印Ｅ方向下流側）傾斜面（例えば２ｃ）の上端の下方位置にあり、各傾斜面はそれぞれの一部分が隣の傾斜面と上下で重なって矢印Ｅ方向に集約されている。   Thereafter, a series of steps from the formation of the inclined surface 2b to the covering of the soil 5b (steps from the second step to the fifth step) are repeated to form the inclined surfaces 2c, 2d, 2e and the soils 5c, 5d, The covering of 5e is implemented in order, and the cultivated land S is created. In this case, the lower end of a certain inclined surface (for example, 2b) is at a position below the upper end of the next inclined surface (for example, in the direction of arrow E) (for example, 2c). It overlaps vertically and is collected in the direction of arrow E.

このように造成された栽培地Ｓで栽培すると、ムカゴ４から派生した茎７は蔓９となり、ネット１２の両側から蔓９，９が絡みついて上向きに伸長し葉１３が茂って生長する。
かかる栽培地Ｓにより、自然薯１０を傾斜面２の傾斜方向（矢印Ｅ方向）に密に栽培できるため、狭い土地であっても合理的に栽培に利用することができる。尚、隣合う傾斜面は必ずしも上下で重なっている必要はなく、矢印Ｅ方向に離れて形成された場合でも、相当量の自然薯１０を生産できる。 When cultivated in the cultivated land S thus created, the stem 7 derived from the mugago 4 becomes the vine 9, the vines 9 and 9 are entangled from both sides of the net 12, extend upward, and the leaves 13 grow and grow.
Since the natural straw 10 can be densely cultivated in the inclination direction (arrow E direction) of the inclined surface 2 by the cultivated land S, it can be rationally used for cultivation even in a narrow land. It should be noted that adjacent inclined surfaces do not necessarily have to overlap each other, and even when they are formed apart in the direction of arrow E, a considerable amount of natural selection 10 can be produced.

尚、前記した栽培地Ｓで栽培する際に、図６に示す土砂移送装置１５を利用することも可能である。土砂移送装置１５は、栽培地Ｓ，Ｓ１間の通路を図６の紙面と直交する方向（矢印Ｅと直角の方向）に走行する車輪１６付きの台車１７を備えている。台車１７の上面には複数の支持脚１８が立設されている。これらの支持脚１８の上端には、可撓ホース２１を把持したホース把持部１９が枢支部材２０を介して前後左右揺動自在に支持されている。土砂吸取り側である一端部２１Ａ近傍の可撓ホース２１内には、エアチューブ２２先端の先細ノズル２３が他端部２１Ｂを指向（矢印Ｇ方向）して配備されている。可撓ホース２１の他端部２１Ｂは土砂吹出し側となっている。エアチューブ２２の末端は、台車１７の上面に設置されたエアコンプレッサ２４のエア吹出口に接続されている。この図６では、エアコンプレッサ２４の駆動により先細ノズル２３から噴き出された高圧エアーに随伴して、栽培地Ｓの傾斜面２の上方の土５ｄが吸い取られて可撓ホース２１内を搬送され、次年度栽培用の栽培地Ｓ１に移送される状態を示している。   In addition, when cultivating in the above-mentioned cultivation place S, it is also possible to utilize the earth and sand transfer apparatus 15 shown in FIG. The earth and sand transfer device 15 includes a carriage 17 with wheels 16 that travels in a direction orthogonal to the paper surface of FIG. 6 (a direction perpendicular to the arrow E) through the path between the cultivation areas S and S1. A plurality of support legs 18 are erected on the upper surface of the carriage 17. At the upper ends of these support legs 18, a hose gripping part 19 that grips the flexible hose 21 is supported via a pivot member 20 so as to be swingable back and forth and right and left. In the flexible hose 21 in the vicinity of the one end 21A on the earth and sand absorption side, a tapered nozzle 23 at the tip of the air tube 22 is arranged to face the other end 21B (in the direction of arrow G). The other end 21 </ b> B of the flexible hose 21 is the earth and sand blowing side. The end of the air tube 22 is connected to an air outlet of an air compressor 24 installed on the upper surface of the carriage 17. In FIG. 6, the soil 5 d above the inclined surface 2 of the cultivated land S is sucked up and conveyed in the flexible hose 21 along with the high-pressure air ejected from the tapered nozzle 23 by driving the air compressor 24. The state transferred to the cultivation site S1 for cultivation in the next year is shown.

かかる土砂移送装置１５を用いれば、既述した実施形態による作用、効果を奏するのは無論のこと、自然薯１０収穫時における栽培地Ｓからの土５ａ〜５ｄの取り出し移送作業、および、土５ａ〜５ｄによる他の栽培地Ｓ１での傾斜面被覆作業を、ほとんど人手によることなく行なうことができる。   If this earth and sand transfer device 15 is used, it is a matter of course that the operations and effects according to the above-described embodiments can be obtained, the soil 5a to 5d is taken out and transferred from the cultivated land S at the time of harvesting the natural pod 10, and the earth 5a to The inclined surface covering work in the other cultivated land S1 by 5d can be carried out almost manually.

尚、本発明の山芋類の栽培方法は上記した各実施形態に限定されるものでなく、例えば図７に示すように、一般の畑地に形成される畝２５の傾斜面２を利用することも可能である。すなわち、畝２５の傾斜面２にシート体３を被せ、シート体３上にムカゴ４や種芋１０Ｂを置き、ムカゴ４または種芋１０Ｂ、シート体３、および畝２５，２５間の底面２６に土５を被せて栽培するのである。
このように構成した場合は、あらためて傾斜面２を形成する必要がなく、手軽に山芋類を大量生産できる。 Note that the method for cultivating yams of the present invention is not limited to the above-described embodiments. For example, as shown in FIG. 7, it is possible to use the inclined surface 2 of the straw 25 formed in a general field. Is possible. That is, the sheet body 3 is placed on the inclined surface 2 of the ridge 25, the mugago 4 and the seed basket 10B are placed on the sheet body 3, and the soil 5 is placed on the bottom surface 26 between the mugago 4 or the seed basket 10B, the sheet body 3, and the baskets 25, 25. It is cultivated with a cover.
In the case of such a configuration, it is not necessary to form the inclined surface 2 anew, and it is possible to easily mass-produce yam.

本発明の一実施形態に係る山芋類の栽培手順を図（ａ）〜（ｆ）に順に示した部分側断面図である。It is the fragmentary sectional side view which showed in order the cultivation procedure of the yam which concerns on one Embodiment of this invention in figure (a)-(f). 図１（ａ）〜（ｆ）に示した栽培手順に対応する（ａ）〜（ｆ）に平面で示した部分平面図である。It is the partial top view shown by the plane to (a)-(f) corresponding to the cultivation procedure shown to Fig.1 (a)-(f). 前記一実施形態により得た自然薯とこの自然薯を分割して得た芋製品および種芋を示す正面図である。It is a front view which shows the cocoon product obtained by the said embodiment, the cocoon product obtained by dividing | segmenting this natural cocoon, and a seed pod. 本発明の別の実施形態に係る山芋類の栽培態様を示す一部断面を含む斜視図である。It is a perspective view including the partial cross section which shows the cultivation aspect of the yam which concerns on another embodiment of this invention. 図４の栽培態様に対応した部分側断面図である。It is a fragmentary sectional side view corresponding to the cultivation mode of FIG. 前記別の実施形態の栽培態様において土を隣の栽培地に移送する態様を示す部分側断面図である。It is a fragmentary sectional side view which shows the aspect which transfers soil to the adjacent cultivation place in the cultivation aspect of said another embodiment. 本発明の他の実施形態に係る山芋類の栽培態様を示す部分側断面図である。It is a fragmentary sectional side view which shows the cultivation aspect of the yam which concerns on other embodiment of this invention.

１ 土（基体）
２，２ａ，２ｂ，２ｃ，２ｄ，２ｅ 傾斜面
３ シート体（合成樹脂製フィルム）
４ ムカゴ（山芋種材）
５，５ａ，５ｂ，５ｃ，５ｄ，５ｅ 土
１０ 自然薯（山芋類）
１０Ａ 種芋（山芋種材）
１５ 土砂移送装置
２１ 可撓ホース
２１Ａ 一端部
２１Ｂ 他端部
２２ エアチューブ
２３ 先細ノズル
２４ エアコンプレッサ
Ｅ 矢印
Ｆ 矢印
Ｓ，Ｓ１ 栽培地
θ 傾斜角度 1 Soil (base)
2, 2a, 2b, 2c, 2d, 2e Inclined surface 3 Sheet body (synthetic resin film)
4 Mukago (mountain seeds)
5, 5a, 5b, 5c, 5d, 5e Soil 10 Natural selection (Yamata)
10A Soybean seed (Yamakiso seed material)
15 Sediment transfer device
21 Flexible hose
21A One end
21B The other end
22 Air tube
23 Tapered nozzle
24 Air compressor E Arrow
F Arrow S, S1 Cultivated land θ Inclination angle

Claims (4)

基体の表面に形成された傾斜面を、該傾斜面に応じて撓み変形する程度の可撓性を有する合成樹脂製フィルムで被い、該合成樹脂製フィルム上に山芋種材を置き、該山芋種材および合成樹脂製フィルムに土を被せて栽培することを特徴とする山芋類の栽培方法。 The inclined surface formed on the surface of the substrate is covered with a synthetic resin film having flexibility enough to bend and deform according to the inclined surface, and a hill seed material is placed on the synthetic resin film. A method for cultivating yam, characterized in that a seed material and a film made of a synthetic resin are covered with soil. 基体の表面に形成された傾斜面を、該傾斜面に応じて撓み変形する程度の可撓性を有する合成樹脂製フィルムで被う第１工程と、合成樹脂製フィルム上に山芋種材を置く第２工程と、山芋種材および合成樹脂製フィルムに土を被せる第３工程と、第３工程で被せられた土の表面に前記第１工程の傾斜面とほぼ同じ傾斜角度の傾斜面を形成する第４工程と、該第４工程で形成された土の傾斜面を前記合成樹脂製フィルムで被う第５工程とを備えてなり、該第５工程に続いて、前記第２工程から第５工程までの各工程を順に繰り返して造成した栽培地で栽培することを特徴とする山芋類の栽培方法。 A first step of covering the inclined surface formed on the surface of the base with a synthetic resin film having a degree of flexibility that deforms and deforms in accordance with the inclined surface , and placing a yam seed material on the synthetic resin film The second step, the third step of covering the soil with the yam seed material and the synthetic resin film , and forming the inclined surface having the same inclination angle as the inclined surface of the first step on the surface of the soil covered in the third step And a fifth step of covering the slope of the soil formed in the fourth step with the synthetic resin film . Subsequent to the fifth step, the second step to the second step are performed. A method for cultivating yam, characterized by cultivating in a cultivation site created by repeating each step up to 5 steps in order. 傾斜面が、その傾斜方向と直交する水平方向に平たんに形成されていることを特徴とする請求項１または請求項２に記載の山芋類の栽培方法。3. The method for cultivating potatoes according to claim 1 or 2, wherein the inclined surface is formed flat in a horizontal direction perpendicular to the inclined direction. エアーを噴き出すエアコンプレッサと、エアコンプレッサのエア吹出口に接続されたエアチューブと、土砂を搬送するための可撓ホースとを備え、可撓ホースの土砂吸取り側である一端部内に、エアチューブ先端の先細ノズルが可撓ホースの他端部に向けてエアーを噴き出して土砂を搬送するように配備されて成る土砂移送装置を用いて、An air compressor that blows out air, an air tube connected to an air outlet of the air compressor, and a flexible hose for conveying earth and sand, and at the end of the flexible hose on the soil suction side, the tip of the air tube Using a sand and sand transfer device in which the taper nozzle is arranged to blow out air toward the other end of the flexible hose and transport the earth and sand,
山芋種材および合成樹脂製フィルムに被せられていた土を別の栽培地に移送することを特徴とする請求項１から請求項３までのいずれか一項に記載の山芋類の栽培方法。The method for cultivating yam according to any one of claims 1 to 3, wherein the soil covered with the yam seed material and the synthetic resin film is transferred to another cultivated land.
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