JP2011196134A - Weed-proofing method - Google Patents

Weed-proofing method Download PDF

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JP2011196134A
JP2011196134A JP2010065767A JP2010065767A JP2011196134A JP 2011196134 A JP2011196134 A JP 2011196134A JP 2010065767 A JP2010065767 A JP 2010065767A JP 2010065767 A JP2010065767 A JP 2010065767A JP 2011196134 A JP2011196134 A JP 2011196134A
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grains
limestone
weed
light shielding
soil
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Takashi Saito
隆 斎藤
Takeshi Kato
剛 加藤
Jin Kanoda
仁 鹿野田
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BUKO KOGYO KK
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Abstract

PROBLEM TO BE SOLVED: To provide a method for carrying out weed-proofing of a median strip of a highway, a planting zone of a city area walkway, or the like efficiently at a low cost.SOLUTION: Light shielding grains less than 10 mm in grain size are laid in a predetermined thickness on soil to prevent germination of plants from the soil. Since the grains are usable without particularly selecting material as long as the grains have light shielding property, there is no need to carry out procurement of material and treatment such as calcination of material, which results in considerably reducing cost required for weed-proofing. Further, since sunlight can be surely intercepted by using small grains less than 10 mm in grain size, weed-proofing can be efficiently performed. The laying thickness of the light shielding grains is set to 50 mm or more, preferably to 100 mm or more. The light shielding grains can be obtained from limestone, sand stone, andesite, rhyolite, silica, or the like. Sand for cement raw material, sintered powder or calcium carbonate for desulfurization is usable as limestone.

Description

本発明は、防草方法に関し、特に、市街地歩道や高速道路の中央分離帯等において雑草の成長を防止する方法に関する。   The present invention relates to a weed control method, and more particularly to a method for preventing the growth of weeds in urban sidewalks, highway median strips, and the like.

従来、高速道路の中央分離帯や市街地歩道の植栽帯等においては、雑草が生えると、その都度、適宜車線規制等を行った上で草刈り作業を行う。この作業は、車線規制を伴う場合には、利用者に不便となるとともに、作業者にとっても、特に高速道路等において危険を伴うものとなる。また、この作業には、草刈りを行うための道具や車両等のコスト、人件費に多額の費用が掛かるという問題があった。   Conventionally, when a weed grows in a median strip of a highway or a planting zone of an urban sidewalk, mowing work is performed after appropriate lane restrictions and the like each time. This operation is inconvenient for the user when lane regulation is involved, and it is also dangerous for the operator, particularly on highways. In addition, this work has a problem that a large amount of cost is required for the tools and vehicles for mowing and labor costs.

そこで、例えば、特許文献1、2には、雑草の繁殖を効果的に阻止するため、カルシウムを含有する火成岩を焼成してカルシウムを表面移行させ、表面のカルシウムで表面付着水のpHをアルカリとして雑草の種子の発芽を阻止する技術が開示されている。   Therefore, for example, in Patent Documents 1 and 2, in order to effectively prevent the growth of weeds, the igneous rock containing calcium is baked to move the surface of calcium, and the surface calcium is used as the pH of the surface adhesion water as an alkali. Techniques for preventing weed seed germination have been disclosed.

また、特許文献3には、公共道路の中央分離帯等に、石材、プラスチック、金属、無毒産業廃棄物、煉瓦、ガラス等の材質からなる1cm〜3cmの小片を、5cm程度の厚さに無数に置いて雑草生育防止区域を設ける技術が記載されている。   Patent Document 3 discloses countless pieces of 1 cm to 3 cm made of materials such as stone, plastic, metal, non-toxic industrial waste, brick, glass, etc., with a thickness of about 5 cm. The technology to provide a weed growth prevention area is described.

特開2001−151615号公報JP 2001-151615 A 特開2004−182597号公報JP 2004-182597 A 特開平10−60849号公報Japanese Patent Laid-Open No. 10-60849

しかし、上記特許文献1、2に記載の敷石は、カルシウムを含有する火成岩を焼成して製造するため、カルシウムを含有する火成岩を調達する必要があるとともに、焼成装置及び燃料を必要とし、製造コストが高くなるという問題があった。   However, since the paving stones described in Patent Documents 1 and 2 are produced by firing calcium-containing igneous rocks, it is necessary to procure calcium-containing igneous rocks, and require a firing device and fuel, and the production cost. There was a problem that became high.

一方、特許文献3の防草方法では、種々の材質の小片を用いることができるものの、1cm〜3cmの小片を用いるため、後述するように、遮光性の面で充分ではなく、改善の余地があった。   On the other hand, in the herbicidal method of Patent Document 3, although small pieces of various materials can be used, since small pieces of 1 cm to 3 cm are used, as described later, the light shielding property is not sufficient, and there is room for improvement. there were.

そこで、本発明は、上記従来の防草方法における問題点に鑑みてなされたものであって、低コストで効率よく防草を行う方法を提供することを目的とする。   Then, this invention is made | formed in view of the problem in the said conventional grass prevention method, Comprising: It aims at providing the method of performing grass prevention efficiently at low cost.

上記目的を達成するため、本発明は、防草方法であって、粒径が10mm未満の遮光性を有する粒子を土の上に所定厚さ敷き込むことにより、該土からの植物の発芽を防止することを特徴とする。   In order to achieve the above object, the present invention provides a herbicidal method, wherein a particle having a particle size of less than 10 mm and having a light-shielding property is laid on the soil to a predetermined thickness, thereby allowing germination of plants from the soil. It is characterized by preventing.

そして、本発明によれば、遮光性を有する粒子であれば、特に材質を選ぶことなく使用することができるため、材料の調達や、材料を焼成するなどの処理を施す必要がなく、防草に要するコストを大幅に低減することができるとともに、粒径が10mm未満の小さな粒子を用いることで、確実に太陽光を遮ることができ、効率よく防草を行うことができる。   According to the present invention, any particle having a light-shielding property can be used without any particular choice of material, so that it is not necessary to procure the material or to perform a treatment such as firing the material. Cost can be significantly reduced, and by using small particles having a particle size of less than 10 mm, sunlight can be reliably shielded and grass can be efficiently prevented.

上記防草方法において、前記遮光性を有する粒子の敷き込み厚さを50mm以上、好ましくは100mm以上とすることができ、敷き込み厚さを厚くすればする程遮光性を向上させて防草効果を大きくすることができるが、その分コストも上昇するため、50mm以上、好ましくは100mm以上とすることが好適である。   In the above-mentioned herbicidal method, the laying thickness of the light-shielding particles can be 50 mm or more, preferably 100 mm or more. The thicker the laying thickness, the better the light shielding property and the herbicidal effect. However, since the cost also increases, the thickness is preferably 50 mm or more, preferably 100 mm or more.

上記防草方法において、前記遮光性を有する粒子を、石灰石、砂岩、安山岩、流紋岩又は珪石から得ることができ、天然に存在する鉱物を用いることで、より防草コストを低く抑えることができる。   In the herbicidal method, the light-shielding particles can be obtained from limestone, sandstone, andesite, rhyolite, or silica, and by using a naturally occurring mineral, the herbicidal cost can be further reduced. it can.

また、上記防草方法において、前記石灰石をセメント原料用砂味、焼結粉又は脱硫用タンカルとすることができ、従来セメント原料用に用いていた物を転用することで、セメント生産量の低下に柔軟に対応しながら、防草コストの低減にも繋げることができる。   Further, in the above herbicidal method, the limestone can be used as a cement material sandy taste, sintered powder, or desulfurized tancal, and by diverting what has been used for conventional cement raw materials, a reduction in cement production is achieved. It can also lead to a reduction in the herbicidal cost while responding flexibly.

以上のように、本発明によれば、低コストで効率よく防草を行うことができる。   As described above, according to the present invention, weed prevention can be performed efficiently at low cost.

本発明にかかる防草方法の一実施の形態を説明するための概略断面図である。It is a schematic sectional drawing for demonstrating one Embodiment of the weed prevention method concerning this invention. 本発明にかかる防草方法の試験方法を説明するための概略断面図である。It is a schematic sectional drawing for demonstrating the test method of the weed prevention method concerning this invention. 本発明にかかる防草方法の試験結果を説明するための概略図である。It is the schematic for demonstrating the test result of the weed prevention method concerning this invention.

次に、本発明を実施するための形態について図面を参照しながら詳細に説明する。   Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

本発明は、図1に示すように、粒径が10mm未満の遮光性を有する粒子1を土2の上に所定厚さH敷き込むことにより、該土2からの植物の発芽を防止する。ここで、遮光性を有する粒子であれば、特に材質を選ぶ必要はなく、石灰石、砂岩、安山岩、流紋岩又は珪石を破砕、粉砕して製造した砕石等、又は天然鉱石以外の粒子状の種々の物質を使用することができる。尚、粒径10mm未満の遮光性を有する粒子1を用いる理由については、後述する。   As shown in FIG. 1, the present invention prevents the germination of plants from the soil 2 by laying a predetermined thickness H on the soil 2 with light-shielding particles 1 having a particle size of less than 10 mm. Here, as long as the particles have light-shielding properties, it is not necessary to select a material, and limestone, sandstone, andesite, rhyolite, or crushed stone produced by crushing and pulverizing, or particles other than natural ores A variety of materials can be used. The reason for using the light-shielding particles 1 having a particle size of less than 10 mm will be described later.

遮光性を有する粒子1は、50mm以上、好ましくは100mm以上の厚さHに敷き込む。敷き込み厚さHを厚くすればする程遮光性を向上させて防草効果を大きくすることができる。しかし、敷き込み厚さHを厚くすると、その分コストも上昇する。防草効果とコストの両面を考慮した場合、100mm程度の敷き込み厚さHとするのが好適である。   The light-shielding particles 1 are laid on a thickness H of 50 mm or more, preferably 100 mm or more. The thicker the laying thickness H is, the more the light shielding effect can be improved and the herbicidal effect can be increased. However, increasing the laying thickness H increases the cost accordingly. When considering both the herbicidal effect and the cost, it is preferable to set the laying thickness H to about 100 mm.

上記遮光性を有する粒子1に石灰石を用いる場合には、セメント原料用に製造される砂味を用いることが好ましい。このセメント原料用砂味とは、石灰石鉱山で採掘された石灰石のうち、破砕・分級工程を経て、骨材や砕砂を製造した後、最後に残った最も粒度の小さい粒子群からなる物であって、専らセメント原料用として利用される物である。最近のセメント生産量の低下に伴い、セメント原料用砂味の在庫が増加する傾向にあることから、これを防草用にも用いることで、適正在庫を維持することができて好ましい。   When limestone is used for the particles 1 having light shielding properties, it is preferable to use sandy taste produced for cement raw materials. This sand for cement raw material is the limestone mined at the limestone mine, which is made up of particles with the smallest particle size remaining after producing aggregates and crushed sand through crushing and classification processes. Therefore, it is used exclusively for cement raw materials. With the recent decline in cement production, sand stock for cement raw materials tends to increase, so it is preferable to use this also for herbicidal protection because it can maintain a proper stock.

次に、上記発明をなすに至った試験例について説明する。この試験では、平成21年6月15に、図2に示すようなプランター11の中に遮光用ビニール14を敷いた後、土12と雑草の根及び西洋芝の種子を入れ、発育させ、その1ヶ月後の7月14日に、粒度分布の異なる3種類の石灰石砕石13を敷き込み厚さHを、5cm、10cm、15cmと変えて土12の上に敷き込み、植物が成長するのに必要な光を遮断する効果を確認した。   Next, test examples that have led to the above invention will be described. In this test, on June 15, 2009, after a light shielding vinyl 14 was laid in a planter 11 as shown in FIG. 2, soil 12 and weed roots and seeds of Western turf were placed and grown. Necessary for the plant to grow on July 14th, after laying three kinds of limestone crushed stones 13 with different particle size distribution on the soil 12 by changing the thickness H to 5cm, 10cm and 15cm. Confirmed the effect of blocking light.

3種類の石灰石砕石13の粒度分布を表1に示す。石灰石No.1は、上記セメント原料用砂味(以下「砂味」という)であり、そのほとんどが粒径10mm未満である。No.2が粒度的に中間に位置する物であり、No.3が最も粒度の粗い物である。また、石灰石No.1の化学成分を表2に示す。   Table 1 shows the particle size distribution of the three types of crushed limestone 13. Limestone No. Reference numeral 1 denotes a sand taste for cement raw material (hereinafter referred to as “sand taste”), most of which has a particle size of less than 10 mm. No. No. 2 is located in the middle in terms of particle size. 3 is the coarsest particle. Also, limestone no. The chemical components of 1 are shown in Table 2.

Figure 2011196134
Figure 2011196134

Figure 2011196134
Figure 2011196134

上記試験結果を表3及び図3に示す。尚、表3に示すプランターのNo.と、図3に示したプランターのNo.とが対応している。   The test results are shown in Table 3 and FIG. The planter No. shown in Table 3 was used. No. of the planter shown in FIG. And correspond.

Figure 2011196134
Figure 2011196134

上記試験結果より、粒度の粗い石灰石No.3を150mmの敷き込み厚さHで敷き込んでも発芽が見られたのに対し(No.9のプランター)、粒度的に中間にある石灰石No.2でも、敷き込み厚さHの薄いNo.4(敷き込み厚さH=50mm)とNo.5(敷き込み厚さH=100mm)で発芽が確認された。一方、粒度の最も細かい石灰石No.1の砂味については、No.1(敷き込み厚さH=50mm)で約40日後、No.3(敷き込み厚さH=150mm)で約70日後に発芽が確認されたが、発育した植物の種類から、下方の土からの発芽ではなく、種子が石灰石No.1(砂味)の表面に乗った状態で発芽したものと見られる。そのため、プランター一面に植物が発育する可能性は低く、雑草の除去も容易に行うことができるものと推測される。   From the above test results, coarse limestone no. Although sprouting was observed even when 3 was laid with a laying thickness H of 150 mm (No. 9 planter), limestone No. 3 in the middle in terms of particle size was observed. No. 2 with thin laying thickness H. 4 (laying thickness H = 50 mm) and No. 4 Germination was confirmed at 5 (laying thickness H = 100 mm). On the other hand, the finest limestone No. For the sandy taste of No. 1, no. No. 1 (laying thickness H = 50 mm), about 40 days later, 3 (laying thickness H = 150 mm), germination was confirmed after about 70 days, but the seeds were not sprouting from the soil below, but the seeds were limestone no. It seems that it germinated while riding on the surface of 1 (sandy). Therefore, it is estimated that plants are unlikely to grow on the whole planter, and weeds can be easily removed.

以上の結果より、植物の発芽に必要な太陽光を遮断する効果(下方の土からの発芽を抑制する効果)は、3種類の石灰石の中で石灰石No.1(砂味)が最も優れていると判断される。また、発芽しなかったNo.2のプランター(石灰石No.1で、敷き込み厚さH=100mm)と、No.6のプランター(石灰石No.2で、敷き込み厚さH=150mm)とを比較すると、No.2のプランターの方が低コストとなり、最も好ましい。   From the above results, the effect of blocking sunlight necessary for the germination of plants (the effect of suppressing germination from the soil below) is limestone No. 3 among the three types of limestone. 1 (sandy taste) is judged to be the best. In addition, no germination No. No. 2 planter (limestone No. 1, laying thickness H = 100 mm); No. 6 planter (limestone No. 2, laying thickness H = 150 mm) The planter 2 is the most preferred because of its lower cost.

1 遮光性を有する粒子
2 土
11 プランター
12 土
13 石灰石砕石
14 遮光用ビニール
H 敷き込み厚さ
DESCRIPTION OF SYMBOLS 1 Particle | grains which have light-shielding property 2 Soil 11 Planter 12 Soil 13 Limestone crushed stone 14 Light shielding vinyl H Covering thickness

Claims (4)

粒径が10mm未満の遮光性を有する粒子を土の上に所定厚さ敷き込むことにより、該土からの植物の発芽を防止することを特徴とする防草方法。   A herbicidal method characterized in that germination of plants from soil is prevented by laying a predetermined thickness of light-shielding particles having a particle size of less than 10 mm on the soil. 前記遮光性を有する粒子の敷き込み厚さを、50mm以上、好ましくは100mm以上とすることを特徴とする請求項1に記載の防草方法。   The weed control method according to claim 1, wherein the laying thickness of the light-shielding particles is 50 mm or more, preferably 100 mm or more. 前記遮光性を有する粒子は、石灰石、砂岩、安山岩、流紋岩又は珪石からなることを特徴とする請求項1又は2に記載の防草方法。   3. The herbicidal method according to claim 1, wherein the light-shielding particles are made of limestone, sandstone, andesite, rhyolite, or quartzite. 前記石灰石は、セメント原料用砂味、焼結粉又は脱硫用タンカルであることを特徴とする請求項3に記載の防草方法。   4. The herbicidal method according to claim 3, wherein the limestone is sandy taste for cement raw material, sintered powder or desulfurized tancal.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014177777A (en) * 2013-03-14 2014-09-25 Railway Technical Research Institute Tree planting method of earthquake resistant tide embankment banking slope face
JP2014201526A (en) * 2013-04-02 2014-10-27 吉澤石灰工業株式会社 Weed suppressing material and construction method of the same
JP2016220600A (en) * 2015-05-29 2016-12-28 七王工業株式会社 Water-permeable weed-proof sheet and weed-proof structure and construction method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005256318A (en) * 2004-03-10 2005-09-22 Iris Ohyama Inc Crime-preventive gravel, and method of producing crime-preventive gravel
JP2007143443A (en) * 2005-11-25 2007-06-14 Jobu Sangyo Kk Granular stone material for controlling germination of plant seed, method for producing the grain stone material, and usage of the grain stone material
JP2008133706A (en) * 2006-10-25 2008-06-12 Hatsukari Kogyo Kk Weedkilling structure and weedkilling construction method
JP2008303641A (en) * 2007-06-08 2008-12-18 Kantekku Zoen Kenkyusho:Kk Weed-preventing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005256318A (en) * 2004-03-10 2005-09-22 Iris Ohyama Inc Crime-preventive gravel, and method of producing crime-preventive gravel
JP2007143443A (en) * 2005-11-25 2007-06-14 Jobu Sangyo Kk Granular stone material for controlling germination of plant seed, method for producing the grain stone material, and usage of the grain stone material
JP2008133706A (en) * 2006-10-25 2008-06-12 Hatsukari Kogyo Kk Weedkilling structure and weedkilling construction method
JP2008303641A (en) * 2007-06-08 2008-12-18 Kantekku Zoen Kenkyusho:Kk Weed-preventing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014177777A (en) * 2013-03-14 2014-09-25 Railway Technical Research Institute Tree planting method of earthquake resistant tide embankment banking slope face
JP2014201526A (en) * 2013-04-02 2014-10-27 吉澤石灰工業株式会社 Weed suppressing material and construction method of the same
JP2016220600A (en) * 2015-05-29 2016-12-28 七王工業株式会社 Water-permeable weed-proof sheet and weed-proof structure and construction method thereof

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