JP2008043221A - Greening base material, greening structure and greening method - Google Patents

Greening base material, greening structure and greening method Download PDF

Info

Publication number
JP2008043221A
JP2008043221A JP2006219633A JP2006219633A JP2008043221A JP 2008043221 A JP2008043221 A JP 2008043221A JP 2006219633 A JP2006219633 A JP 2006219633A JP 2006219633 A JP2006219633 A JP 2006219633A JP 2008043221 A JP2008043221 A JP 2008043221A
Authority
JP
Japan
Prior art keywords
greening
herbicide
base material
japanese turf
chelating agent
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
Application number
JP2006219633A
Other languages
Japanese (ja)
Inventor
Akira Yaneshita
亮 屋袮下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP2006219633A priority Critical patent/JP2008043221A/en
Publication of JP2008043221A publication Critical patent/JP2008043221A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Cultivation Of Plants (AREA)
  • Catching Or Destruction (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide greening base material, promoting germination of Japanese lawn grass while effectively preventing weeds from getting mixed, and enabling reduction in addition of herbicide as little as possible: to provide a greening structure: and to provide a greening method. <P>SOLUTION: The greening method comprises mixing at least creeping shoots of Japanese lawn grass, planting soil, a chelating agent, a herbicide and water together to obtain a mixture, and spraying the mixture to an area to be greened. The greening base material is made of at least planting soil, a chelating agent and a herbicide. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、道路法面等を緑化するための緑化基盤材、該緑化基盤材を含む緑化混合物が被緑化エリアの表層に具備されてなる緑化構造と、緑化工法に関する。   The present invention relates to a greening base material for greening road slopes, a greening structure in which a greening mixture containing the greening base material is provided on a surface layer of a greening area, and a greening method.

道路の法面や空港離着陸帯などは、土壌の飛散防止や形状維持のために、ブルーグラスやフェスク類といった外来の芝草種の種子吹付け工によって緑化されてきている。しかし、外来の芝草種は地上部の生育が旺盛であり、安全確保や景観維持のために年に3〜4回程度刈り込まなければならず、かかる刈り込み費用や手間の観点から省管理型草種に対する要望が高まっているのが現状である。また、生物多様性保全の観点から外来種の使用が議論されており、例えば吹付け緑化工に頻繁に用いられているトールフェスクは外来生物法の要注意外来生物リストに記載されている。   Road slopes and airport takeoff and landing zones have been greened by seed sprayers of exotic turfgrass species such as bluegrass and fescue to prevent soil scattering and shape maintenance. However, exotic turfgrass species have a strong growth on the ground and must be trimmed about 3-4 times a year to ensure safety and maintain the landscape. The demand for is increasing. In addition, the use of alien species has been discussed from the viewpoint of biodiversity conservation. For example, tall fescue, which is frequently used for spray planting, is listed in the list of alien organisms requiring caution in the Alien Biology Act.

ノシバをはじめとする日本芝は在来の芝草種であり、外来草種に比べて自然草高が低く、耐暑性などの環境ストレス耐性に優れており、省管理性に優れた芝草種とされている。しかし、日本芝は栄養繁殖性の植物であり、人力によって植栽することから施工コストがかかり、したがって大規模緑地に適用されることはなかった。   Japanese turf grasses such as Noshiba are traditional turfgrass species, which have lower natural grass height than exotic grass species, are excellent in resistance to environmental stresses such as heat resistance, and are considered to be excellent in manageability. ing. However, Japanese turf is a vegetative and proliferative plant, and it is costly to construct because it is planted by human power, so it has not been applied to large-scale green spaces.

ところで、上記する種子吹付け工に代わる技術として、栄養繁殖性の植物を用いた吹付け工法が種々発案され、公開されている。例えば特許文献1に開示の緑化工法は、植物苗と肥料等をタンク内で圧縮空気によって混合し、かかる混合物を法面等に吹付ける工法であり、該工法にはセル成型苗が使用される。また、特許文献2に開示の法面緑化吹付け工法は、日本芝の裁断片と成育基盤材、肥料等を混合し、得られた混合物を法面に吹付ける工法である。   By the way, as a technique to replace the seed spraying method described above, various spraying methods using vegetative plants have been invented and published. For example, the greening method disclosed in Patent Document 1 is a method in which plant seedlings and fertilizers are mixed with compressed air in a tank, and the mixture is sprayed on a slope or the like, and cell-molded seedlings are used for the method. . In addition, the slope planting spraying method disclosed in Patent Document 2 is a construction method in which a cutting piece of Japanese turf is mixed with a growth base material, fertilizer and the like, and the resulting mixture is sprayed on the slope.

上記する栄養繁殖性の草種は種子繁殖性植物に比べて、造成初期の生育速度が遅いために、匍匐茎や裁断片などの栄養器官を用いた吹付け工を行うと、基盤土壌や緑化基盤材に含まれる種子から発生した雑草が栄養繁殖性の植物を駆逐し、目的とする緑地を形成できなという問題が生じ易い。そのため、初期被覆速度を改善するために添加する苗の混合量を高めることなどが試みられているものの、特に日本芝の場合には、混合量を増やすと吹付け機械に負荷がかかりすぎて機械が停止してしまうといった別の課題が生じることとなり、依然として有効な施工方法の確立に至っていない。   The above-mentioned vegetative breeding grass species have a slower growth rate in the early stages than the seed breeding plant. The problem is that weeds generated from the seeds contained in the wood drive out vegetatively proliferating plants and fail to form the desired green space. For this reason, attempts have been made to increase the mixing amount of seedlings added to improve the initial coating speed, but especially in the case of Japanese turf, increasing the mixing amount causes excessive load on the spraying machine. Another problem, such as stopping, has occurred, and an effective construction method has not yet been established.

さらに、特許文献3に開示の緑化工法は、日本芝の種子を日本芝の発芽に影響を及ぼさない除草剤、肥料などと混合して吹付ける工法である。しかし、雑草の多くは日本芝と同じイネ科に属しており、日本芝種子の発芽に影響を与えず、雑草種子の発芽のみを抑制する除草剤は実用化されておらず、かかる工法も実現性に乏しい。   Furthermore, the greening method disclosed in Patent Document 3 is a method of spraying Japanese turf seeds mixed with herbicides, fertilizers and the like that do not affect germination of Japanese turf. However, many weeds belong to the same grass family as Japanese turf, and herbicides that do not affect the germination of Japanese turf seeds and suppress only the germination of weed seeds have not been put to practical use, and such construction methods have also been realized. Poor sex.

本発明者等は、種子から発芽したばかりの小さな植物体に比べ、匍匐茎などの栄養器官から萌芽した植物体は除草剤に対する耐性が高いことに着目し、特許文献2,3双方の技術を組み合わせて、日本芝の匍匐茎を除草剤を含む緑化基盤材に混合して吹付けることを試みた。試験の結果、雑草の発芽が抑制されるまで除草剤の添加量を高めてしまうと、匍匐茎を用いても日本芝の生育も同様に抑制されてしまうという結果が得られた。また、環境負荷を軽減する観点からすると、可及的に除草剤の添加量を低減できる工法であることが望ましい。   The inventors of the present invention pay attention to the fact that plants sprouted from vegetative organs such as stems have higher resistance to herbicides compared to small plants that have just germinated from seeds. Attempts were made to mix and spray Japanese turf stems with greening base materials containing herbicides. As a result of the test, if the amount of the herbicide was increased until weed germination was suppressed, the result was that the growth of Japanese turf was similarly suppressed even when the stem was used. Further, from the viewpoint of reducing the environmental load, it is desirable that the method can reduce the amount of the herbicide added as much as possible.

特許第3088984号公報Japanese Patent No. 3088984 特開2004−278059号公報JP 2004-278059 A 特開昭62−115210号公報Japanese Patent Laid-Open No. 62-115210

本発明は、上記する問題に鑑みてなされたものであり、雑草の混入を効果的に防除しながら日本芝の萌芽や増殖を促進させることができ、除草剤の添加量を可及的に低減することができ、さらには、被覆度の高い芝地を早期に造成することのできる緑化工法と、緑化基盤材および該緑化基盤材を含む緑化混合物が被緑化エリアの表層に具備されてなる緑化構造を提供することを目的とする。   The present invention has been made in view of the above-mentioned problems, and can effectively promote the germination and growth of Japanese turf while effectively controlling weed contamination, and the amount of herbicide added is reduced as much as possible. Furthermore, a revegetation method that can quickly create a lawn with high coverage, and a revegetation base material and a revegetation mixture comprising the revegetation base material are provided on the surface layer of the area to be replanted The purpose is to provide a structure.

前記目的を達成すべく、本発明による緑化基盤材は、少なくとも、植栽土と、キレート剤と、除草剤と、からなることを特徴とするものである。   In order to achieve the above object, the greening base material according to the present invention comprises at least planting soil, a chelating agent, and a herbicide.

植栽土としては、適宜の天然土壌、あるいは人工土壌を使用することができる。また、除草剤は作用の様式によって、茎葉処理型と土壌処理型に分けることができる。茎葉処理型は発生した雑草の茎葉から植物全体に移行して雑草を枯らす除草剤であるが、本発明は造成初期に雑草を発生させないことを目的としているため、茎葉処理型を適用することはできない。また、土壌処理型の除草剤は、植物の生長点に作用して生長を阻害する薬剤で、根から吸収される、あるいは芽が薬剤に接触したときに作用するものであり、雑草の初期発生を抑制するために使われることが多く、本発明に適用可能な薬剤である。   As planting soil, appropriate natural soil or artificial soil can be used. In addition, herbicides can be divided into a foliage treatment type and a soil treatment type depending on the mode of action. The foliage treatment type is a herbicide that migrates from the foliage of the generated weeds to the whole plant and witheres the weeds, but the present invention aims to prevent the generation of weeds at the early stage of creation, so applying the foliage treatment type is not Can not. Soil-treated herbicides are agents that act on plant growth points to inhibit growth, and are absorbed from the roots or act when buds come into contact with the agent. In many cases, it is a drug applicable to the present invention.

また、本発明の緑化基盤材の成分として土壌処理型の除草剤を使用することが考えられるが、薬剤の種類によっては日本芝の萌芽も抑制してしまうため、日本芝に作用しない除草剤を選定する必要がある。さらに、土壌処理型の除草剤は、土粒子や土壌中の有機物表面にある負電荷によって吸着され、少しずつ土壌中の水分に溶出し、植物に吸収される、もしくは接触することによって作用する。そのため、緑化基盤材の成分として土壌処理型の除草剤を使用(添加)して造成初期に雑草発生を抑制するためには、除草剤を多めに添加する必要がある。そこで、本発明の緑化基盤材においては、日本芝の苗吹付け工を行う際に、日本芝の萌芽や生育にはほとんど影響せず、雑草のみを抑制する除草剤を使用することと、キレート剤(例えば、エチレンジアミン四酢酸やクエン酸など)の使用(添加)により、土粒子に吸着された農薬を溶出させ、低濃度でも効率よく除草剤を作用させることが可能となり、雑草の初期発生を抑制することを可能としたものである。   In addition, it is conceivable to use a soil treatment type herbicide as a component of the greening base material of the present invention, but depending on the type of drug, the germination of Japanese turf is also suppressed, so a herbicide that does not act on Japanese turf is used. It is necessary to select. Furthermore, the soil treatment type herbicide is adsorbed by the negative charges on the surface of the soil particles and the organic matter in the soil, and gradually elutes into the moisture in the soil and acts by being absorbed or contacted by the plant. Therefore, it is necessary to add a large amount of herbicide in order to use (add) a soil treatment type herbicide as a component of the greening base material to suppress weed generation at the early stage of development. Therefore, in the greening base material of the present invention, when performing a Japanese turf seedling spraying work, the use of a herbicide that hardly affects the germination and growth of Japanese turf and suppresses only weeds; The use (addition) of agents (such as ethylenediaminetetraacetic acid and citric acid) allows the pesticides adsorbed on the soil particles to elute and allows the herbicide to act efficiently even at low concentrations, thus reducing the initial generation of weeds. It is possible to suppress it.

キレート剤は金属イオン等と錯結合することが知られており、重金属で汚染された土壌を浄化する際に、キレート剤を添加することによって土粒子表面に吸着された金属イオンを可溶化することに多用されている。本発明の緑化基盤材では、重金属汚染された土壌の浄化に多用されているクエン酸などを緑化基盤材として使用(添加)し、除草剤を緑化基盤材中に溶出し易くすることによって、植物に効率よく接触もしくは吸収させるものである。   Chelating agents are known to complex with metal ions, etc., and solubilize metal ions adsorbed on the surface of soil particles by adding chelating agents when purifying soil contaminated with heavy metals. Is often used. The greening base material of the present invention uses (adds) citric acid, which is frequently used for the purification of soil contaminated with heavy metals, as a greening base material, thereby facilitating elution of the herbicide into the greening base material. To efficiently contact or absorb.

なお、緑化基盤材の構成要素としては、上記する植栽土、キレート剤、除草剤のほかに、肥料や保水剤、養生剤等を含むことができる。   In addition to the planting soil, chelating agents, and herbicides described above, fertilizers, water retention agents, curing agents, and the like can be included as components of the greening base material.

また、本発明による緑化構造は、少なくとも、植栽土と、キレート剤と、除草剤と、からなる緑化基盤材および日本芝の匍匐茎から構成される緑化混合物と、前記緑化混合物が層状に表面を被覆している被緑化エリアと、からなることを特徴とするものである。   Further, the greening structure according to the present invention comprises a greening mixture composed of at least a planting soil, a chelating agent, and a herbicide, and a greening mixture composed of Japanese turf stems, and the greening mixture has a layered surface. And a covered greening area.

日本芝としては、ノシバやコウライシバ、ノシバとコウライシバの種間雑種で冬季の緑葉期間が長く、匍匐茎の増殖性に優れた日本芝品種の「みやこ」などを用いることができる。   As the Japanese turf, there can be used “Miyako”, a Japanese turf cultivar that has a long winter green leaf period and is excellent in the growth of stems and stems.

本発明の被緑化エリアとしては、既述する道路の法面や空港離着陸帯のほか、多目的広場をはじめとして、緑化が可能もしくは緑化が好ましいエリア全般を指称するものである。特に都市部においては、ヒートアイランド化の抑制やCO対策等の一環として緑化技術の導入が急務となっていることから、本発明の緑化構造の適用対象としては好ましいものである。 As the greening area of the present invention, in addition to the road slopes and airport takeoff and landing zones described above, a general purpose plaza and other general areas where greening is possible or greening are preferred. Particularly in urban areas, the introduction of greening technology is an urgent task as part of the suppression of heat islanding and CO 2 countermeasures, and therefore, it is preferable as an application target of the greening structure of the present invention.

日本芝の匍匐茎と、既述する緑化基盤材とから緑化混合物を形成し、適宜の被緑化エリアの表面に緑化層を造成することによって発明の緑化構造が構成される。   The greening structure of the invention is configured by forming a greening mixture from the Japanese turf stem and the greening base material described above, and forming a greening layer on the surface of an appropriate greening area.

さらに、本発明による緑化工法は、少なくとも、日本芝の匍匐茎と、植栽土と、キレート剤と、除草剤と、水とを混合し、得られた混合物を被緑化エリアに吹き付けることを特徴とするものである。   Furthermore, the greening method according to the present invention is characterized in that at least a Japanese turf shoot, a planting soil, a chelating agent, a herbicide, and water are mixed, and the resulting mixture is sprayed on a greening area. To do.

まず、日本芝の匍匐茎、植栽土、キレート剤、除草剤、さらには保水剤、養生剤等をタンク内に収容するとともに水を混入させ、タンク内で適宜の手法にて混合させて混合物を製造する。より具体的な混合方法としては、植栽土と水を混合した後に保水剤などを入れ、次いでキレート剤、匍匐茎、除草剤の順に投下し、それらを攪拌混合する方法を挙げることができる。また、かかる混合態様は、攪拌翼による混合攪拌方法や、圧縮空気による混合方法などを選定することができる。   First, Japanese turf shoots, planting soil, chelating agents, herbicides, water retention agents, curing agents, etc. are contained in the tank and mixed with water, and mixed in an appropriate manner in the tank. To manufacture. As a more specific mixing method, there can be mentioned a method of adding water retention agent after mixing planting soil and water, then dropping in the order of chelating agent, stem and herbicide, and stirring and mixing them. Moreover, the mixing aspect can select the mixing stirring method by a stirring blade, the mixing method by compressed air, etc.

製造された混合物を適宜の被緑化エリアに空気圧にて圧送しながら吹き付け施工することにより、既述する緑化構造が形成される。   The greening structure described above is formed by spraying the manufactured mixture while feeding it to an appropriate greening area with air pressure.

本発明の緑化工法によれば、キレート剤、除草剤が混合されることによって雑草の混入を効果的に防除しながら日本芝の萌芽や増殖を促進させることが可能となり、さらには除草剤の添加量を可及的に低減することができる。また、被覆度の高い芝地を早期かつ広範囲に亘って造成することが可能となる。   According to the greening method of the present invention, it becomes possible to promote germination and growth of Japanese turf while effectively controlling weed contamination by mixing a chelating agent and a herbicide, and further, adding a herbicide The amount can be reduced as much as possible. In addition, it is possible to create a lawn with a high degree of coverage early and over a wide range.

以上の説明から理解できるように、本発明の緑化基盤材、緑化構造および緑化工法によれば、雑草の混入を効果的に防除しながら日本芝の萌芽や増殖を促進させることができ、除草剤の添加量を可及的に低減することができ、さらには、被覆度の高い芝地を早期に造成することができる。   As can be understood from the above description, according to the tree planting base material, the tree planting structure and the tree planting method of the present invention, the germination and growth of Japanese turf can be promoted while effectively controlling weed contamination, and the herbicide Can be reduced as much as possible, and moreover, a turf with a high coverage can be created early.

以下、図面を参照して本発明の実施の形態を説明する。図1は、本発明の緑化構造の一実施の形態の模式図であり、図2は、試験区ごとの芝と雑草の芽数を比較したグラフである。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of an embodiment of a greening structure of the present invention, and FIG. 2 is a graph comparing the number of shoots of grass and weeds for each test plot.

まず、本発明の緑化工法について一実施の形態の概要を説明する。使用する日本芝は一般的に匍匐茎が絡みあった切り芝として市販されているが、緑化基盤材に混合する匍匐茎の作成にあたっては、市販されているおよそ30cm角の切り芝を例えば耕運機などを用いて裁断し、匍匐茎を切り出す。   First, the outline | summary of one Embodiment is demonstrated about the greening method of this invention. The Japanese turf used is generally marketed as a cut grass entwined with a stem, but when making a stem to be mixed with a greening base material, a commercially available approximately 30 cm square cut grass is used, for example, with a cultivator. And cut out the stems.

緑化基盤材と匍匐茎の混合は、攪拌羽が付いている機械吹付け工用の混合タンク(容量およそ3m)内で行う。まず、タンクの1/2程度まで水を入れ、次に水と同量程度の植栽土を投下してよく攪拌した後に匍匐茎を加える。このとき、植栽土として、黒土など一般の土壌、建設発生土、広葉樹の樹皮などを発酵させたバーク堆肥、ミズゴケが湿地などで堆積して変質して成るピートモスなどを、単体あるいは2種類以上を混合したものが適用可能である。また、匍匐茎の混合量については、吹付け機械への負担を考慮して施工面積の15〜20%に当たる切り芝から裁断された匍匐茎を混合することが適切である。例えば3mのタンクで調整された緑化混合物によって150m程度を施工できるため、20〜30m分の切り芝から裁断された匍匐茎を1タンクに混合する。さらに、高度化成肥料などを1m当たりの窒素の添加量が3gになるように元肥として混合し、施工する土表面の性状や傾斜に合わせて、緑化混合物が流出しないように固めるための接合剤、化合物やファイバーから成る保水剤といった吹付け助材と所定のキレート剤を添加して、一旦攪拌混合した後に所定の除草剤を添加して全体が均一になるまでよく混合する。 The greening base material and the stem are mixed in a mixing tank (capacity: about 3 m 3 ) for a mechanical sprayer equipped with a stirring blade. First, add water up to about 1/2 of the tank, then drop the planting soil in the same amount as the water and mix well, then add the stems. At this time, as soil for planting, ordinary soil such as black soil, construction generated soil, bark compost fermented with bark of hardwood, etc., peat moss formed by sphagnum depositing in wetlands etc. A mixture of these can be used. As for the mixing amount of the stems, it is appropriate to mix the stems cut from the cut grass corresponding to 15 to 20% of the construction area in consideration of the burden on the spraying machine. For example, about 150 m 2 can be constructed with a greening mixture adjusted in a 3 m 3 tank, so that the stems cut from the cut grass of 20 to 30 m 2 are mixed into one tank. Furthermore, advanced chemical fertilizer, etc. is mixed as the original fertilizer so that the amount of nitrogen added per 1 m 2 is 3 g, and it is hardened so that the greening mixture does not flow out according to the properties and inclination of the soil surface to be constructed. Then, a spraying aid such as a water retention agent composed of a compound or fiber and a predetermined chelating agent are added, and once stirred and mixed, a predetermined herbicide is added and mixed well until the whole becomes uniform.

タンク内で混合された緑化混合物を空気圧によってホースを通して法面や平地に噴射することにより、匍匐茎とともに肥料や保水機能を含む緑化混合物で被覆させ、匍匐茎から増殖する植物体によって緑化を図るものである。図1には、かかる緑化工法によって造成された緑化構造10を模式的に示している。この緑化構造10は、適宜の被緑化エリア3の上面に、緑化基盤材1と匍匐茎2とからなる緑化混合物が被覆されることによって造成される。ここで、緑化基盤材1の構成成分であるキレート剤によって土壌処理型の除草剤は土粒子に吸着されることがない。そのため、緑化混合物や被緑化エリア3に含まれる雑草種子の発芽を効率よく抑制できるとともに芝の生育は抑制されることがなく、結果として芝の被覆率が高い緑地を造成することができる。   By spraying the greening mixture mixed in the tank through a hose to the slope or flat ground by air pressure, it is covered with a greening mixture containing fertilizer and water retention function together with the stem and planted by the plant growing from the stem. . FIG. 1 schematically shows a greening structure 10 created by such a greening method. This greening structure 10 is formed by covering an appropriate upper surface of a greening area 3 with a greening mixture composed of a greening base material 1 and a stem 2. Here, the soil treatment type herbicide is not adsorbed to the soil particles by the chelating agent which is a constituent component of the greening base material 1. Therefore, germination of weed seeds contained in the greening mixture and the greening area 3 can be efficiently suppressed, and the growth of turf is not suppressed, and as a result, a green space with a high turf coverage can be created.

以下に、除草剤の選定試験とその結果、および、キレート剤による除草剤添加量軽減効果の検証試験とその結果に関して説明する。
[除草剤の選定試験とその結果について]
まず、屋内にて、芝の生育には影響せず、雑草の発生を抑制する除草剤を選定する試験をおこなった。幅320mm×奥行245mm×高さ70mmの育苗バットに雑草の種子を含む土壌を10mm厚で均し、その上に除草剤を添加した緑化基盤材と日本芝の裁断苗を混合したものを敷いて試験体を作成した。この試験には、フラザスルフロン、クロルフタリム、インダノファン、シデュロン、SAPという6種類の除草剤を供試し、その添加薬量は登録薬量の中間値とした。供試薬剤ごとに1試験区とし、各試験区3反復にて試験体を作成した。また、対照区として基盤材に除草剤を添加しない試験区を設け、温室内で1ヶ月間養生した後に試験体ごとに日本芝と雑草の芽数を計測した。
Below, the selection test of a herbicide and its result, the verification test of the herbicide addition amount reduction effect by a chelating agent, and its result are demonstrated.
[Selection test and results of herbicide]
First, a test was conducted indoors to select a herbicide that suppresses the generation of weeds without affecting turf growth. Leveling soil containing weed seeds to a seedling bat of width 320mm x depth 245mm x height 70mm with a thickness of 10mm, and then laying a mixture of greening base material added with herbicide and cut grass seedling of Japanese turf A test specimen was created. In this test, six types of herbicides, flazasulfuron, chlorphthalim, indanophan, ciduron, and SAP, were used, and the amount of additive was set to the intermediate value of the registered dose. One test group was prepared for each reagent reagent, and a test specimen was prepared by repeating each test group three times. In addition, a test plot where no herbicide was added to the base material was provided as a control plot, and after culturing for one month in a greenhouse, the number of Japanese turf and weed buds was measured for each specimen.

その結果を以下の表1に示す。日本芝については、対照区(薬剤無添加区)に比べて除草剤を添加した試験区における芽数が全体的に少なく、特にクロルフタリムやインダノファンを添加した試験区における芝の芽数が他の試験区に比べてやや少なかった。   The results are shown in Table 1 below. As for Japanese turf, the number of buds in the test group to which the herbicide was added was generally smaller than that in the control group (no drug added group). It was slightly less than the ward.

また、フラザスルフロンを添加した試験区においては日本芝の根長が他の試験区に比べて有意に短かった。雑草の発生状況については、SAP、クロルフタリム、インダノファンを添加した試験区におけるイネ科雑草の芽数が対照区に比べて有意に少なく、シデュロンを添加した試験区以外で広葉雑草の抑制効果が認められた。以上、雑草の抑制効果が高く、芝への影響が少なかったSAP、クロルフタリム、インダノファンを芝苗吹付け工法に適用するのが好ましいという結論に至った。   In addition, the root length of Japanese turf was significantly shorter in the test group to which frazasulfuron was added than in the other test groups. As for the occurrence of weeds, the number of grass weeds in the test group to which SAP, chlorphthalim, and indanophan were added was significantly smaller than that in the control group, and the inhibitory effect of broad-leaved weeds was observed outside the test group to which Siduron was added. It was. As described above, it has been concluded that it is preferable to apply SAP, chlorphthalim, and indanophan, which have a high weed control effect and little influence on turf, to the turf seedling spraying method.

Figure 2008043221
Figure 2008043221

次いで、上記試験でイネ科雑草の抑制効果が高かったSAP,クロルフタリムに加えてシデュロンについて、上記試験と同様の仕様で配合した基盤材に登録薬量の上限、中間、下限値で薬剤を添加する試験区を設け、添加薬量が日本芝および雑草の発生に及ぼす影響を調べた。その結果を以下の表2に示している。   Next, in addition to SAP and chlorphthalim, which have a high inhibitory effect on gramineous weeds in the above test, drugs are added at the upper, middle and lower limits of the registered drug amount to the base material formulated with the same specifications as in the above test. A test zone was established to examine the effect of the amount of added drug on the development of Japanese turf and weeds. The results are shown in Table 2 below.

試験開始1ヶ月後に、各試験区における日本芝および雑草の発生状況を調べたところ、日本芝の芽数については、高薬量区における芽数が全体的に少なかった。特にシデュロンを1m当たり2.0g(上限値)の割合で添加した区では、日本芝の地上部の生育が対照区に比べて萎縮していた。 One month after the start of the test, the occurrence of Japanese turf and weeds in each test area was examined. As for the number of Japanese turf buds, the number of buds in the high-dose area was generally small. In particular, in the group to which Siduron was added at a rate of 2.0 g (upper limit value) per 1 m 2 , the growth of the above-ground part of Japanese turf was dwarfed compared to the control group.

雑草の抑制効果を見ると、SAP、クロルフタリムを高濃度で添加した試験区においてイネ科雑草の芽数が対照区に比べて有意に少なく、広葉雑草に対しては低濃度添加区でも抑制効果が見られた。シデュロンを添加した試験区では、低濃度添加区においてもイネ科、広葉雑草の発生が抑制されていた。以上のことから,クロルフタリムの添加によって、日本芝の増殖を抑制することなく、イネ科、広葉雑草を防除できることが明らかとなった。   Looking at the inhibitory effect of weeds, the number of shoots of Gramineae weeds was significantly less in the test group to which SAP and chlorphthalim were added at a high concentration compared to the control group, and the inhibitory effect was also obtained for broadleaf weeds in the low concentration addition group. It was seen. In the test group to which Siduron was added, the occurrence of Gramineae and broadleaf weeds was suppressed even in the low concentration addition group. From the above, it became clear that the addition of chlorphthalim can control Gramineae and broadleaf weeds without inhibiting the proliferation of Japanese turf.

Figure 2008043221
Figure 2008043221

[キレート剤による除草剤添加量軽減効果の検証試験とその結果について]
上記試験において、日本芝の苗吹付け工の場合に、クロルフタリムという土壌処理型の除草剤を直接、緑化基盤材に25g/mの割合で添加することにより雑草の発生を防除できることが明らかとなった。ここでは、さらに、除草剤の添加量を低減するために、除草剤をキレート剤と合わせて添加する効果について検証した。
[Verification test of herbicide additive reduction effect by chelating agent and results]
In the above test, it is clear that in the case of Japanese turf seedling sprayer, weed control can be controlled by adding a soil treatment type herbicide called chlorphthalim directly to the greening base material at a rate of 25 g / m 3. became. Here, in order to further reduce the amount of herbicide added, the effect of adding the herbicide together with the chelating agent was verified.

上記試験と同様に幅320mm×奥行245mm×高さ70mmの育苗バットに雑草の種子を含む土壌を10mm厚で均し、その上に、所定量の水と植栽土を攪拌混合したものに、接合材などの吹付け助剤、キレート剤、芝苗の順に加え、最後にクロルフタリムを添加して十分に攪拌した混合物を敷いて試験体を作成した。試験には、以下の表3に示すように、クロルフタリムの添加量として標準量:25g/mと標準の1/2量:12.5g/mの2種類を設定し、キレート剤には重金属で汚染された土壌を浄化する際によく使われるクエン酸を用い、クエン酸の添加量として緑化基盤材の容量に対して0%、0.5%、1%量の3種類を設定し、クロルフタリムとクエン酸の各々の添加量を組み合わせた6試験区に加えて、クロルフタリム、クエン酸とも添加しない対照区を作成し、計7種類の試験区を設けた。 In the same manner as in the above test, soil containing seeds of weeds in a seedling bat having a width of 320 mm × depth of 245 mm × height of 70 mm was leveled at a thickness of 10 mm, and then a predetermined amount of water and planting soil were mixed with stirring. A test specimen was prepared by adding a spraying aid such as a bonding material, chelating agent, and lawn seedling in this order, and finally adding chlorophthalim and thoroughly stirring the mixture. In the test, as shown in Table 3 below, as the addition amount of chlorphthalim, two types of standard amount: 25 g / m 3 and 1/2 standard amount: 12.5 g / m 3 were set. Use citric acid, which is often used to purify soil contaminated with heavy metals, and set the amount of citric acid to 0%, 0.5%, and 1% of the amount of greening base material. In addition to the six test groups in which the addition amounts of chlorophthalim and citric acid were combined, a control group in which neither chlorphthalim nor citric acid was added was prepared, and a total of seven types of test groups were provided.

Figure 2008043221
Figure 2008043221

表3と図2に、試験体を作成してから1ヶ月後に調査した各試験区の日本芝、広葉雑草、イネ科雑草の芽数を示す。対照区(試験区1)では広葉、イネ科雑草とも発生が見られたのに対して、除草剤を添加した試験区ではいずれも試験区1に比べて雑草の芽数が有意に少ないか、まったく発生せず、除草剤の添加効果が認められた。また、試験区4(除草剤:標準の1/2量、クエン酸:0.5%添加区)では、雑草の発生は認められたものの、日本芝の芽数が最も多かった。試験区4に対して除草剤やクエン酸の添加量を増加すると、雑草の発生は完全に抑えられるが、日本芝の芽数も少なくなり、クエン酸の添加量を増やすと日本芝にも除草剤の影響が及びやすくなると考えられた。   Table 3 and FIG. 2 show the number of shoots of Japanese turf, broad-leaved weeds, and gramineous weeds in each test area investigated one month after the specimens were prepared. In the control group (test group 1), both broadleaf and grass weeds were observed, whereas in the test group to which the herbicide was added, the number of shoots of weeds was significantly smaller than in test group 1, It did not occur at all, and the effect of adding a herbicide was recognized. In the test group 4 (herbicide: 1/2 standard amount, citric acid: 0.5% added group), weeds were observed, but the number of Japanese turf shoots was the highest. Increasing the amount of herbicide or citric acid to test area 4 completely suppresses the generation of weeds, but the number of Japanese turf buds decreases, and increasing the amount of citric acid increases weeding in Japanese turf. It was thought that the effect of the agent became easier.

例えば、試験区4に対して除草剤の添加量は変わらないが、クエン酸の添加量が増えている試験区6(除草剤:標準の1/2量、クエン酸:1.0%添加区)では、日本芝の芽数が試験区4に比べて有意に低下した。クエン酸の添加量が増えると、緑化基盤材中に溶出する除草剤の量も増加し、日本芝にも影響が及んでしまうと考えられる。試験区7(除草剤:標準量、クエン酸:1.0%添加区)における日本芝の芽数が最も少なかった。   For example, test group 6 (herbicide: 1/2 standard amount, citric acid: 1.0% added group), although the amount of herbicide added did not change relative to test group 4, but the amount of citric acid added increased. ), The number of Japanese turf buds was significantly lower than that in test group 4. As the amount of citric acid added increases, the amount of herbicide eluted in the greening base material also increases, which may affect Japanese turf. The number of Japanese turf shoots in test group 7 (herbicide: standard amount, citric acid: 1.0% added group) was the smallest.

したがって、除草剤をキレート剤と合わせて添加する場合、キレート剤の添加量が基盤剤の容積に対して0.5%以上になると、雑草以外の植物にも除草剤の影響が及ぶことが明らかとなった。試験区4における日本芝や雑草の芽数の計測結果は試験区3(除草剤:標準量、クエン酸:無添加)とほぼ同等で、クエン酸を緑化基盤材の容量に対して0.5%添加することにより、除草剤の添加量を半減してもほぼ同等の効果が得られることが明らかとなった。   Therefore, when the herbicide is added together with the chelating agent, it is clear that if the amount of the chelating agent is 0.5% or more with respect to the volume of the base agent, the herbicide is also affected on plants other than weeds. It became. The measurement results of the number of Japanese turf and weed buds in test group 4 were almost the same as test group 3 (herbicide: standard amount, citric acid: no addition), and citric acid was 0.5% of the capacity of the greening substrate It was revealed that almost the same effect can be obtained even if the amount of the herbicide added is halved.

以上の試験結果より、緑化基盤材に日本芝の生育に影響せず雑草の発芽時に作用する土壌処理型の除草剤を添加し、かつキレート剤の添加したものに日本芝の匍匐茎を混合することによって、低濃度でも除草剤を効率よく作用させることで、造成初期の雑草発生を抑制でき、施工から1年程度で日本芝を主体とした緑地を造成することができ、大規模緑地へ日本芝を適用することが可能であることが実証された。   From the above test results, add a soil treatment type herbicide that acts at the time of germination of weeds without affecting the growth of Japanese turf to the greening base material, and mix Japanese turf stems with the addition of a chelating agent. Can effectively control the generation of weeds in the early stages of construction by allowing herbicides to work efficiently even at low concentrations, and can create a green area mainly composed of Japanese turf within about one year from construction. It was proved possible to apply.

以上、本発明の実施の形態を図面を用いて詳述してきたが、具体的な構成はこの実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲における設計変更等があっても、それらは本発明に含まれるものである。   The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

本発明の緑化構造の一実施の形態の模式図である。It is a schematic diagram of one embodiment of the greening structure of the present invention. 試験区ごとの芝と雑草の芽数を比較したグラフである。It is the graph which compared the number of shoots of the grass and weed for every test section.

符号の説明Explanation of symbols

1…緑化基盤材、2…匍匐茎、3…被緑化エリア、10…緑化構造   DESCRIPTION OF SYMBOLS 1 ... Greening base material, 2 ... Panicle stem, 3 ... Greening area, 10 ... Greening structure

Claims (6)

少なくとも、植栽土と、キレート剤と、除草剤と、からなる緑化基盤材。   A greening base material comprising at least planting soil, a chelating agent, and a herbicide. 前記キレート剤がクエン酸をはじめとする材料からなり、前記除草剤がクロルフタリムをはじめとして日本芝の生育を抑制しない除草剤からなることを特徴とする請求項1に記載の緑化基盤材。   The greening base material according to claim 1, wherein the chelating agent is made of a material such as citric acid, and the herbicide is made of a herbicide that does not inhibit growth of Japanese turf, such as chlorophthalim. 少なくとも、植栽土と、キレート剤と、除草剤と、からなる緑化基盤材および日本芝の匍匐茎から構成される緑化混合物と、
前記緑化混合物が層状に表面を被覆している被緑化エリアと、からなる緑化構造。
At least a planting soil, a chelating agent, a herbicide, a greening base material composed of a greening base material and Japanese turf stems, and a greening mixture,
A greening structure comprising a greening area in which the greening mixture covers the surface in layers.
前記キレート剤がクエン酸をはじめとする材料からなり、前記除草剤がクロルフタリムをはじめとして日本芝の生育を抑制しない除草剤からなることを特徴とする請求項3に記載の緑化構造。   The greening structure according to claim 3, wherein the chelating agent is made of a material such as citric acid, and the herbicide is made of a herbicide that does not inhibit growth of Japanese turf, such as chlorophthalim. 少なくとも、日本芝の匍匐茎と、植栽土と、キレート剤と、除草剤と、水とを混合し、得られた混合物を被緑化エリアに吹き付ける緑化工法。   A greening method that mixes at least Japanese turf stems, planting soil, chelating agents, herbicides, and water, and sprays the resulting mixture onto the area to be planted. 前記キレート剤がクエン酸をはじめとする材料からなり、前記除草剤がクロルフタリムをはじめとして日本芝の生育を抑制しない除草剤からなることを特徴とする請求項5に記載の緑化工法。   The revegetation method according to claim 5, wherein the chelating agent is made of a material such as citric acid, and the herbicide is made of a herbicide such as chlorophthalim that does not inhibit the growth of Japanese turf.
JP2006219633A 2006-08-11 2006-08-11 Greening base material, greening structure and greening method Pending JP2008043221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006219633A JP2008043221A (en) 2006-08-11 2006-08-11 Greening base material, greening structure and greening method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006219633A JP2008043221A (en) 2006-08-11 2006-08-11 Greening base material, greening structure and greening method

Publications (1)

Publication Number Publication Date
JP2008043221A true JP2008043221A (en) 2008-02-28

Family

ID=39177588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006219633A Pending JP2008043221A (en) 2006-08-11 2006-08-11 Greening base material, greening structure and greening method

Country Status (1)

Country Link
JP (1) JP2008043221A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011062162A (en) * 2009-09-18 2011-03-31 Tokyu Construction Co Ltd Method for spraying plant seedling multiplied by vegetative reproduction
JP2012115166A (en) * 2010-11-29 2012-06-21 Taisei Corp Vegetation-controlling greening construction method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115210A (en) * 1985-11-15 1987-05-26 町田 正純 Greening construction method by spray machine of japanese turf seed
JPH09224471A (en) * 1996-02-27 1997-09-02 Kureha Chem Ind Co Ltd Artificial granular culture earth for creating creeping stem type lawn and method for creating lawn in short period
JP3088984B2 (en) * 1997-10-22 2000-09-18 株式会社大本組 Spray greening method of plant seedling by air mixing
JP2003105769A (en) * 2001-09-28 2003-04-09 Im:Kk Reclamation method and greening method for vegetation bed
JP2003204717A (en) * 2002-01-11 2003-07-22 Clion Co Ltd Planting base and planting structure for rooftop greening
JP2004278059A (en) * 2003-03-13 2004-10-07 Kudo Kogyo:Kk Slope seeding-planting spraying method for forming flora of native species
JP2005052013A (en) * 2003-08-04 2005-03-03 Kao Corp Artificial culture soil
JP2005296941A (en) * 2004-03-17 2005-10-27 Izumi Watanabe Method for cleaning lead-contaminated soil
JP2006055160A (en) * 2004-08-17 2006-03-02 Korea Atom Energ Res Inst Rare earth chelate compound-added agricultural bed soil and method for producing the same
JP2006191864A (en) * 2005-01-14 2006-07-27 Idemitsu Kosan Co Ltd Material for promoting manifestation of effect of mycorrhizal fungus, and method for cultivating plant by using the same

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115210A (en) * 1985-11-15 1987-05-26 町田 正純 Greening construction method by spray machine of japanese turf seed
JPH09224471A (en) * 1996-02-27 1997-09-02 Kureha Chem Ind Co Ltd Artificial granular culture earth for creating creeping stem type lawn and method for creating lawn in short period
JP3088984B2 (en) * 1997-10-22 2000-09-18 株式会社大本組 Spray greening method of plant seedling by air mixing
JP2003105769A (en) * 2001-09-28 2003-04-09 Im:Kk Reclamation method and greening method for vegetation bed
JP2003204717A (en) * 2002-01-11 2003-07-22 Clion Co Ltd Planting base and planting structure for rooftop greening
JP2004278059A (en) * 2003-03-13 2004-10-07 Kudo Kogyo:Kk Slope seeding-planting spraying method for forming flora of native species
JP2005052013A (en) * 2003-08-04 2005-03-03 Kao Corp Artificial culture soil
JP2005296941A (en) * 2004-03-17 2005-10-27 Izumi Watanabe Method for cleaning lead-contaminated soil
JP2006055160A (en) * 2004-08-17 2006-03-02 Korea Atom Energ Res Inst Rare earth chelate compound-added agricultural bed soil and method for producing the same
JP2006191864A (en) * 2005-01-14 2006-07-27 Idemitsu Kosan Co Ltd Material for promoting manifestation of effect of mycorrhizal fungus, and method for cultivating plant by using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011062162A (en) * 2009-09-18 2011-03-31 Tokyu Construction Co Ltd Method for spraying plant seedling multiplied by vegetative reproduction
JP2012115166A (en) * 2010-11-29 2012-06-21 Taisei Corp Vegetation-controlling greening construction method

Similar Documents

Publication Publication Date Title
CN109174957B (en) Remediation method for farmland soil polluted by heavy metal cadmium
CN105660273B (en) One kind cold ground japonica rice dry-sowed waterpipe cultural method
KR100839201B1 (en) Vegetation soil composition for greening slope
CN107466630A (en) A kind of golf course lawn set broadcasts update method
RU2571346C1 (en) Method of recultivation of tailing dumps in sub-arctic conditions
EP2811829B1 (en) Process for enhancing plant growth
KR101147535B1 (en) Turf Grass Runner Spray Method
JP2004026568A (en) Fertilizer for plant
JP2008043221A (en) Greening base material, greening structure and greening method
JP2009011165A (en) Method for raising pot seedling of gramineae plant, and greening method
CN105145037B (en) The poor layer of top greenery coating, base portion without leaf branch bar layer hands over broadcasting method
CN108432572A (en) A kind of double climing high yield cultivating methods of passion fruit bead
RU2497608C1 (en) Method of biological revegetation of far north soils
CN107242002A (en) Bletilla field production growing season management method
Afrizal et al. Improving the quality of media and Robusta coffee seedlings with mycorrhizal (AMF) and rock phosphate
CN104938175A (en) Non-pollution planting method for chrysanthemum
JPH10276570A (en) Method for preparing cold-district type mixed lawn
CN103999591A (en) Acid soil improvement and peanut planting method
JP7382039B2 (en) Spraying greening materials and spraying greening methods
JP2017158473A (en) Weed preventing and greening method using substance for acidifying soil and ground cover plants
El-Akram et al. Improving wheat production in new soils under Ammonia fertilizer rates and water management
KR100558612B1 (en) A composite of compound manure for a green tract of land
JP4221713B2 (en) Slope weed control method
CN106717795B (en) Cultivation method for preventing and treating leaf spot disease of bighead atractylodes rhizome
TWI598040B (en) Compositions for controlling weeds and methods for controlling weeds

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090223

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110202

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110802

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110929

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20111206