JPH0451826A - Air supply to root of lawn and apparatus therefor - Google Patents
Air supply to root of lawn and apparatus thereforInfo
- Publication number
- JPH0451826A JPH0451826A JP15648690A JP15648690A JPH0451826A JP H0451826 A JPH0451826 A JP H0451826A JP 15648690 A JP15648690 A JP 15648690A JP 15648690 A JP15648690 A JP 15648690A JP H0451826 A JPH0451826 A JP H0451826A
- Authority
- JP
- Japan
- Prior art keywords
- air
- green
- pipe
- grass
- roots
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 claims abstract description 44
- 239000004575 stone Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 10
- 244000025254 Cannabis sativa Species 0.000 claims description 34
- 239000004576 sand Substances 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 230000012010 growth Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000035699 permeability Effects 0.000 description 6
- 235000021384 green leafy vegetables Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010747 number 6 fuel oil Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Cultivation Of Plants (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はゴルフ場等のグリーンの芝の管理を最良なもの
としたためにサンドグリーンの暗渠排水管を利用してグ
リーン床土の中に大気を吸引する方法及び装置に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention utilizes sand green culvert drainage pipes to drain air into the green floor soil in order to optimize the management of grass on greens such as golf courses. The present invention relates to a method and device for suctioning.
植物の生育には培地の酸素供給能が重要な要因となるが
、その改善のためにゴルフ場等のグリーンにはサンドグ
リーンを採用して、通気性や保水性を改善することが行
なわれている。The oxygen supply capacity of the medium is an important factor in plant growth, and to improve this, sand greens are used for greens at golf courses to improve air permeability and water retention. There is.
しかし、サンドグリーンの場合に川砂等からなるグリー
ン床土はゴルフプレーヤーの踏圧によって圧縮され芝の
根に十分空気が供給できなくなることが多かった。However, in the case of sand greens, the green bed soil made of river sand or the like is often compressed by the tread pressure of golf players, making it impossible to supply sufficient air to the roots of the grass.
そこで、従来からグリーンに小孔を多数あけて、そこか
ら空気を自然供給したり、また特開昭５９−２５６２１
号公報に示されているように、グリーンの骨材層に有孔
管を埋設して土壌中に冷気や暖気を強制的に送る芝生地
の通気方法が提案されている。Therefore, in the past, many small holes were made in the green and air was naturally supplied from there.
As shown in the above publication, a method for aerating a lawn is proposed in which perforated pipes are buried in a green aggregate layer to forcefully send cold or warm air into the soil.
〔発明が解決しようとした課題〕
しかしながら、上記の従来技術ではゴルフ場のサンドグ
リーンにおいては、ゴルフプレーヤーの踏みつけによる
踏圧によって川砂等からなるクリーン床土が踏み固めら
れて圧縮さ九、空気を一様に送ることができなくなり、
しだいに水の浸透性が悪くなったり、芝の根への酸素の
供給が不均一となるために芝の成育が悪化し、耐菌性が
低下し、ついには部分的な芝枯れ現象を起こすという問
題があった。[Problem to be Solved by the Invention] However, with the above-mentioned conventional technology, on the sand green of a golf course, the clean floor soil made of river sand etc. is compacted and compressed by the tread pressure of the golf players, causing the air to flow out. I can no longer send it to you,
As water permeability gradually deteriorates and the supply of oxygen to grass roots becomes uneven, grass growth deteriorates, bacterial resistance decreases, and eventually the grass dies locally. There was a problem.
本発明は上記事情に鑑みて強い芝作りのため本発明者等
が長期間研究を重ねた結果、完成したものであり、グリ
ーン床土の下方に埋設されている暗渠排水管を利用して
砕石層、砂利層を通してグリーン床土を調圧された気圧
に減圧することによりグリーン床土に一様に大気を浸透
させ、ゴルフプレーヤーの踏圧によるグリーン床土の圧
縮を減少させ、十分な空隙を保つことができ、その結果
水の浸透性が良く、芝の根に一様に酸素を供給すること
ができるので、強い芝作りが可能となり、また施肥、施
薬を最小限にすることができる方法、及びその装置を提
供することを目的としている。In view of the above circumstances, the present invention was completed as a result of long-term research by the present inventors in order to create a strong lawn. By reducing the pressure of the green soil to a regulated pressure through the gravel layer and gravel layer, the air permeates uniformly into the green soil, reducing the compaction of the green soil due to the tread pressure of golf players, and maintaining sufficient voids. As a result, water permeability is good and oxygen can be uniformly supplied to the grass roots, making it possible to create strong grass and minimizing the need for fertilizers and chemicals. The purpose of the invention is to provide a device for the same.
本発明は上記目的を達成するためのゴルフ場等の川砂等
からなるグリーン床土に植生された芝の根に空気を供給
する方法であって、前記グリーン床土の下方に埋設され
た暗渠排水管を通して真空ポンプにより空気を暗渠部か
ら吸引し、該暗渠部から砕石層等を介して前記グリーン
床土に大気を吸引供給することを特徴とした芝の根に空
気を供給する方法であり、またゴルフ場等の川砂等から
なる芝を植生したグリーン床土の下部にアピールシート
を介して砂利層を形成し、該砂利層の下部に砕石層を形
成し、さらに該砕石層の下部にアピールシートを介して
暗渠を形成するとともに、該暗渠には有孔排水管を配設
し、該排水管の周囲に砂利を詰め、前記排水管に吸引ポ
ンプを連結したことを特徴とした芝の根に空気を供給す
る装置であり、さらにゴルフ場等の芝を植生したグリー
ン床土の下方中央にＶＰ有孔管からなる排水基管を配設
し、その先端部に開閉弁を設け、該基管の左右にはｖｐ
有孔管の支管を５〜６ｍの間隔を保つて平行して多数配
設し、該支管の先端は閉鎖するとともに、前記排水基管
に連設した連結管に吸弓ポンプを連結したことを特徴と
した芝の根に空気を供給する装置である。The present invention provides a method for supplying air to the roots of grass grown in green bed soil made of river sand or the like at a golf course, in order to achieve the above object, and the present invention provides a method for supplying air to the roots of grass grown on green bed soil made of river sand or the like at a golf course. A method for supplying air to the grass roots, characterized by sucking air from the underdrain part through a pipe with a vacuum pump, and sucking and supplying the air from the underdrain part to the green bed soil through a crushed stone layer, etc., In addition, a gravel layer is formed at the bottom of the grass-covered green bed soil made of river sand, etc. at a golf course, etc. through an appeal sheet, a crushed stone layer is formed at the bottom of the gravel layer, and a crushed stone layer is further created to appeal to the bottom of the crushed stone layer. A grass root system characterized in that an underdrain is formed through a sheet, a perforated drainage pipe is provided in the underdrain, gravel is packed around the drainage pipe, and a suction pump is connected to the drainage pipe. In addition, a drainage base pipe consisting of a VP perforated pipe is installed in the center below the green floor soil covered with grass at a golf course, etc., and an on-off valve is installed at the tip of the drainage base pipe. VP on the left and right of the tube
A large number of branch pipes of perforated pipes are arranged in parallel at intervals of 5 to 6 m, the tips of the branch pipes are closed, and a suction pump is connected to a connecting pipe connected to the drainage base pipe. This is a device that supplies air to the grass roots.
次に、本発明の作用について説明する。 Next, the operation of the present invention will be explained.
ゴルフ場等のサンドグリーン下方に埋設される暗渠排水
管はグリーン中央に配設され、底部を除いて多数の小孔
−を有する基管と、この基管の左右に５〜６ｍの間隔を
保って同様の多数の支管が平行して配設されており、前
記基管は吸引ポンプ接続板に収納されている吸引ポンプ
に連結管によって連結されているから、グリーン床土に
植生された芝の根に空気を供給する際には開閉弁を閉じ
、吸引ポンプによって前記連結管から吸引することによ
って大気からグリーン床土中に空気が一様に吸い込まれ
るように吸入圧を調整弁により調整して吸引すると、暗
渠排水管内が減圧され、さらにグリーンの砕石層、砂利
層も減圧され、ついには芝が植生されている川砂等から
なるグリーン床土中が減圧され、大気が一様に吸引され
、グリーン床土中に空気が吸引浸透される。Underdrain drainage pipes buried under sand greens at golf courses, etc. are placed in the center of the green, with a base pipe that has many small holes except for the bottom, and a distance of 5 to 6 m on either side of this base pipe. A large number of similar branch pipes are arranged in parallel, and the base pipe is connected to the suction pump housed in the suction pump connection plate by a connecting pipe, so that the grass grown on the green floor soil can be easily removed. When supplying air to the roots, the on-off valve is closed, and the suction pressure is adjusted by the adjustment valve so that the air is sucked uniformly from the atmosphere into the green bed soil by suction from the connecting pipe using the suction pump. When suction is applied, the pressure inside the culvert drainage pipe is reduced, and the pressure is also reduced in the crushed stone layer and gravel layer of the green, and finally the pressure is reduced in the green bed soil, which is made of river sand etc. where grass is grown, and the air is uniformly sucked out. Air is sucked and permeated into the green floor soil.
したがって、このように調圧された吸引作用によって大
気がグリーン床土中に一様に吸引浸透されるためゴルフ
プレーヤーの踏みつけによる踏圧によって圧縮されたグ
リーン床土に空気が吸引浸透されて有効な空隙が生じ、
そのために芝に十分な空気を供給することができると同
時に、水の浸透性を良好に保つことができるので、降雨
の際にはサンドグリーンの水はけが良く、その雨水はグ
リーン床土中の芝の根に水を供給しながら、砂利層、砕
石層を通過して連結管から排水される。Therefore, the atmospheric air is uniformly sucked and permeated into the green floor soil by the suction action with the pressure adjusted in this way, and the air is suctioned and permeated into the green floor soil which has been compressed by the pressure of the golf player's trampling, thereby creating effective voids. occurs,
Therefore, it is possible to supply sufficient air to the grass, and at the same time, it is possible to maintain good water permeability, so when it rains, the sand green has good drainage, and the rainwater flows into the grass in the soil of the green floor. While supplying water to the roots of the water, it passes through a gravel layer and crushed stone layer and is drained from a connecting pipe.
本発明に係る芝の根に空気を供給する方法及びその装置
の一実施例について図面を参照して説明する。An embodiment of the method and device for supplying air to grass roots according to the present invention will be described with reference to the drawings.
第１図は本実施例を設置したゴルフ場のグリーン附近の
平面図であり、第２図はグリーン部の断面図である。FIG. 1 is a plan view of the vicinity of the green of a golf course where this embodiment is installed, and FIG. 2 is a sectional view of the green.
第１図においてグリーンＡの周囲には複数のマウンドＢ
とバンカーＣが配置されている。グリーンＡは第２図に
示すように芝１が植生されたクリーン床土２が約３５０
の厚さに敷設されており、このグリーン床±２は川砂等
から構成されている。In Figure 1, there are multiple mounds B around green A.
and bunker C are located. As shown in Figure 2, Green A has approximately 350 square meters of clean soil 2 covered with grass 1.
The green floor is laid to a thickness of ±2, and this green floor is made of river sand or the like.
そしてグリーン床±２の下部にはアピールシート３を介
して８分砂利からなる砂利層４が約１０国の厚さで敷設
され、さらにその下部に３０〜２０ｍの砕石からなる砕
石層５が約２５■の厚さで敷設されている・
また、グリーンＡの上記砕石層５の下にはＶＰ有孔排水
管６を収納する暗渠７が葉脈状に配設されており、排水
管６以外の部分には砂利７ａが詰め込まれている。また
この暗渠７と砕石層５の間にはアピールシート３が介在
されている。At the bottom of the green floor ±2, a gravel layer 4 made of 8-minute gravel is laid with a thickness of about 10 mm through an appeal sheet 3, and further below that, a crushed stone layer 5 made of crushed stones of 30 to 20 m thick is laid down. It is laid with a thickness of 25 cm. In addition, under the crushed stone layer 5 of Green A, a culvert 7 for storing the VP perforated drainage pipe 6 is arranged in a vein-like manner, and other than the drainage pipe 6 The part is filled with gravel 7a. Further, an appeal sheet 3 is interposed between the culvert 7 and the crushed stone layer 5.
そして、上記有孔排水管６は直径が７５〜１００閣のＶ
Ｐ管であり、第３図（ｂ）に示すように底部を除いて約
３０ｍ＋の間隔で多数の小孔８が穿設されている。The perforated drainage pipe 6 has a diameter of 75 to 100 mm.
It is a P pipe, and as shown in FIG. 3(b), a large number of small holes 8 are bored at intervals of about 30 m+ except for the bottom.
上記の暗渠７内に収納されている有孔排水管６は、第１
図に示すようにグリーンＡの中央に延びる基管６ａとそ
の基管６ａの左右側に５〜６ｍの間隔で葉脈状に配設さ
れた支管６ｂから構成されている。そして基管６ａの先
端には開閉弁９が設けられており、一方基管６ａの基部
は真空ポンプ接続相１０に連結された連結管１１が連結
されていて、この真空ポンプ接続相１０内には０．６５
ｒｒ？／分の吸引ポンプとウェルポイントポンプが収納
されている。そして真空ポンプ接続相１０にはさらに排
水用の連結管１１が連結されている。The perforated drainage pipe 6 housed in the above-mentioned underdrain 7 is the first
As shown in the figure, it is composed of a base pipe 6a extending to the center of the green A and branch pipes 6b arranged in a vein shape at intervals of 5 to 6 m on the left and right sides of the base pipe 6a. An on-off valve 9 is provided at the tip of the base pipe 6a, and a connecting pipe 11 connected to a vacuum pump connection phase 10 is connected to the base of the base pipe 6a. is 0.65
rr? /min suction pump and well point pump are housed. A connecting pipe 11 for drainage is further connected to the vacuum pump connection phase 10.
なお、符号１２はバンカー〇の集水桝であり、同様に連
結管１１によって真空ポンプ接続相１０に連結されてい
る。Note that reference numeral 12 is a water collection basin of bunker 〇, which is similarly connected to the vacuum pump connection phase 10 by a connecting pipe 11.
以上のように構成された本実施例によれば、グリーン床
±２に植生された芝１の根１ａに空気を供給する際には
開閉弁９を閉じ吸引ポンプ１０によって前記連結管１１
から吸引して大気からグリーン床土２中に空気が一様に
吸い込まれるように吸入圧を図示しない調整弁により調
整して吸引すると、前記のように配設された暗渠排水管
６内が減圧され、さらにグリーンの砕石層５、砂利層４
も減圧され、ついには芝ｌが植生されている川砂等から
なるグリーン床土２中が減圧されるので、大気が一様に
吸引され、グリーン床土２中に空気が吸引浸透される。According to this embodiment configured as described above, when supplying air to the roots 1a of the grass 1 grown on the green floor ±2, the on-off valve 9 is closed and the suction pump 10 is operated to operate the connection pipe 11.
When the suction pressure is adjusted by a regulating valve (not shown) so that air is uniformly sucked from the atmosphere into the green floor soil 2, the pressure inside the underdrain drain pipe 6 arranged as described above is reduced. In addition, green crushed stone layer 5 and gravel layer 4
Finally, the pressure in the green bed soil 2 made of river sand or the like on which the grass 1 is grown is depressurized, so that the air is uniformly sucked in and the air is sucked and permeated into the green bed soil 2.
この際に、調圧された吸引作用によって大気がグリーン
床土２中に一様に吸引浸透されるためゴルフプレーヤー
の踏みつけによる踏圧によって圧縮されたグリーン床±
２に空気が吸引浸透されて有効な空隙が生じ、そのため
に芝に十分な空気を供給することができると同時に、水
の浸透性を良好に保つことができる。At this time, the atmosphere is uniformly sucked and permeated into the green floor soil 2 by the pressure-regulated suction action, so that the green floor is compressed by the pressure of the golf player's trampling.
Air is sucked into and permeated into the grass to create effective voids, which allows sufficient air to be supplied to the grass while at the same time maintaining good water permeability.
一方、降雨の際には真空ポンプを停止しても、サンドグ
リーンＡの水はけが良く、その雨水はグリーン床土２中
の芝１の根１ａに水を供給しながら、砂利層４、砕石層
５を通過して連結管１１から排水される。On the other hand, even if the vacuum pump is stopped during rain, the sand green A has good drainage, and the rainwater supplies water to the roots 1a of the grass 1 in the green bed soil 2, and flows through the gravel layer 4 and the crushed stone layer. 5 and is drained from the connecting pipe 11.
上述したように本発明によれば、グリーン床土の下方に
埋設された暗渠排水管を通して吸引ポンプにより吸引す
るから、グリーン床土に植生された芝の根に空気を供給
する際には開閉弁を閉じ。As described above, according to the present invention, air is sucked by the suction pump through the underdrain drain pipe buried below the green bed soil, so when supplying air to the roots of the grass grown on the green bed soil, an on-off valve is required. Close.
吸引ポンプによって大気からグリーン床土中に空気が一
様に吸い込まれるように吸入圧を調整して吸引すると、
暗渠排水管内が減圧され、さらにグリーンの砕石層、砂
利層も減圧され、ついには芝が植生されている川砂等か
らなるグリーン床土中が減圧され５大気が一様に吸引さ
れ、グリーン床辻中に空気が吸引浸透させることができ
る。When the suction pump adjusts the suction pressure so that air is uniformly sucked from the atmosphere into the green bed soil,
The pressure inside the culvert drainage pipe is reduced, and the green crushed stone layer and gravel layer are also depressurized, and finally the pressure in the green bed soil, which is made up of river sand with grass vegetation, is reduced, and the atmosphere is uniformly sucked out, creating a green bedpass. Air can be sucked and penetrated inside.
このように調圧された吸引作用によって大気がクリーン
床土中に一様に吸引浸透させることができるためゴルフ
プレーヤーの踏みつけによる踏圧によって圧縮されたグ
リーン床土に空気が吸引浸透されて有効な空隙を発生さ
せることができ、そのために芝に十分な酸素を供給する
ことができると同時に、水の浸透性を良好に保つことが
できるので、降雨の際にはサンドグリーンの水はけが良
く、その雨水はグリーン床土中の芝の根に水を供給しな
がら、砂利層、砕石層を通過して連結管から容易に排水
できる。This pressure-regulated suction action allows air to be uniformly sucked and permeated into the clean floor soil, thereby creating effective voids as the air is sucked and permeated into the green floor soil, which has been compressed by the pressure of the golf player's trampling. Therefore, it is possible to supply sufficient oxygen to the grass, and at the same time, it is possible to maintain good water permeability, so when it rains, sand green has good drainage and the rainwater While supplying water to the grass roots in the green bed soil, it can be easily drained from the connecting pipe through the gravel layer and crushed stone layer.
第１図は本実施例を設置したゴルフ場のグリーン附近の
平面図、第２図はグリーン部の断面図、第３図（ａ）は
有孔排水管の平面’７．＜ｂ）はその断面図である。
１ ・・・
２・・・
３・・・
５・・・
７・・・
９・・・
１０・・・
１ ｌ ・・・
Ｂ・・・
芝、 １ａ・・・根、
グリーン床土。
アピールシート、
砕石層、
暗渠、
開閉弁。
真空ポンプ接続桝、
連結管。
マウンド、
グリーン、
Ａ・・・
バンカー
４・・・砂利層、
６・・・有孔排水管、
８・・・小孔、
Ｃ・・・Fig. 1 is a plan view of the vicinity of the green of the golf course where this embodiment is installed, Fig. 2 is a sectional view of the green, and Fig. 3 (a) is a plan view of the perforated drainage pipe. <b) is its cross-sectional view. 1... 2... 3... 5... 7... 9... 10... 1 l... B... Grass, 1a... Roots, Green bed soil. Appeal sheet, crushed stone layer, culvert, on-off valve. Vacuum pump connection box, connecting pipe. Mound, green, A... Bunker 4... Gravel layer, 6... Perforated drainage pipe, 8... Small hole, C...
Claims (5)
された芝の根に空気を供給する方法であって、前記グリ
ーン床土の下方に埋設された暗渠排水管を通して真空ポ
ンプにより空気を暗渠部から吸引し、該暗渠部から砕石
層等を介して前記グリーン床土に大気を一様に吸引供給
することを特徴とした芝の根に空気を供給する方法。(1) A method of supplying air to the roots of grass grown on green bed soil made of river sand, etc. at a golf course, etc., in which air is supplied by a vacuum pump through a drainage pipe buried under the green bed soil. A method for supplying air to grass roots, characterized in that air is sucked from a culvert and uniformly sucked and supplied from the culvert to the green soil through a crushed stone layer or the like.
等からなるグリーン床土に大気が一様に浸透するように
吸引気圧を調整することを特徴とした請求項第１項記載
の芝の根に空気を供給する方法。(2) The suction pressure of the air in the underdrain drain pipe by the suction pump is adjusted so that the air permeates uniformly into the green bed soil made of river sand or the like. How to supply air to roots.
ン床土の下部にアピールシートを介して砂利層を形成し
、該砂利層の下部に砕石層を形成し、さらに該砕石層の
下部にアピールシートを介して暗渠を形成するとともに
、該暗渠には有孔排水管を配設し、該排水管の周囲に砂
利を詰め、前記排水管に吸引ポンプを連結したことを特
徴とした芝の根に空気を供給する装置。(3) A gravel layer is formed at the bottom of the grass-covered green bed soil made of river sand, etc. at a golf course, etc. through an appeal sheet, a crushed stone layer is formed at the bottom of the gravel layer, and then a crushed stone layer is formed at the bottom of the crushed stone layer. A turf characterized in that a culvert is formed through an appeal sheet, a perforated drainage pipe is provided in the culvert, gravel is packed around the drainage pipe, and a suction pump is connected to the drainage pipe. A device that supplies air to the roots.
央にＶＰ有孔管からなる排水基管を配設し、その先端部
に開閉弁を設け、該基管の左右にはＶＰ有孔管の支管を
５〜６ｍの間隔を保って平行して多数配設し、該支管の
先端は閉鎖するとともに、前記排水基管に連設した連結
管に吸引ポンプを連結したことを特徴とした芝の根に空
気を供給する装置。(4) A drainage base pipe consisting of a VP perforated pipe is installed in the center of the lower part of the green floor soil covered with grass at a golf course, etc., and an on-off valve is installed at the tip of the drainage base pipe, and VP perforated pipes are installed on the left and right sides of the base pipe. A large number of branch pipes of the hole pipe are arranged in parallel at intervals of 5 to 6 m, the tips of the branch pipes are closed, and a suction pump is connected to a connecting pipe connected to the drainage base pipe. A device that supplies air to the roots of grass.
等からなるグリーン床土に大気が一様に浸透するように
吸引気圧を調整弁により調整することを特徴とした請求
項第３項乃至第４項記載の芝の根に空気を供給する方法
。(5) The suction pressure of air in the underdrain drain pipe by the suction pump is adjusted by a regulating valve so that the air permeates uniformly into the green bed soil made of river sand or the like. A method for supplying air to grass roots as described in item 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15648690A JPH0451826A (en) | 1990-06-14 | 1990-06-14 | Air supply to root of lawn and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15648690A JPH0451826A (en) | 1990-06-14 | 1990-06-14 | Air supply to root of lawn and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0451826A true JPH0451826A (en) | 1992-02-20 |
Family
ID=15628814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15648690A Pending JPH0451826A (en) | 1990-06-14 | 1990-06-14 | Air supply to root of lawn and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451826A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009185540A (en) * | 2008-02-07 | 2009-08-20 | Sumitomo Forestry Co Ltd | Terrace deck |
-
1990
- 1990-06-14 JP JP15648690A patent/JPH0451826A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009185540A (en) * | 2008-02-07 | 2009-08-20 | Sumitomo Forestry Co Ltd | Terrace deck |
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