JP4642049B2 - Tree planting management method - Google Patents

Description

  The present invention relates to a greening management method for a specific area such as a greening area, for example, a shoulder of a highway, a front surface of a sound insulation wall, a median strip, or the like.

  For example, plants are planted on the shoulders of highways (hereinafter, including the “front portion of the sound insulation wall”) and the median strip to protect the slope, improve the environment, and improve the landscape. The plant may be planted artificially, or it may be used as it is as a natural plant growing on the land before road construction grows and grows.

  In such highway shoulders and median strips, if the plant is neglected, the height of the plant grows until the reflection guide mark or distance mark (hereinafter referred to as "distance mark") is hidden, The driving safety is impaired. Therefore, in order to ensure the visibility of distance markers, etc., the basic management policy is to maintain the grassland with low grass height. Therefore, in general, the policy is to use a lawn with a low plant height, and after mowing the grass, mowing and spraying herbicides. However, it does not completely prevent weeds from entering, although it requires labor and a lot of money to manage.

  Some roads use a method to suppress weed invasion by planting ground cover plants (ground cover plants) such as hedera, which are vine evergreen shrubs, with mulching to cover the entire surface (for example, , See Patent Literatures 1 to 3.)

  In Patent Document 1, weeds are prepared by spreading a net having an arbitrary length from 1 mm to 3 mm on one side of a stitch, and planting turf grass on the soil to form a turf. A method for inhibiting the growth of weeds growing on turf by preventing the growth of rhizomes is disclosed.

  In Patent Document 2, when using a ground cover plant to plant a slope, a culture soil is laid on a sheet having water permeability, air permeability, herbicidal properties and a property of passing through the roots of plants, and ground cover plant. After planting and raising seedlings, a greening method is disclosed in which the seedlings of the grown ground cover plants are peeled off together with the sheet and attached to the slope.

  In Patent Document 3, in the process of greening while suppressing the growth of weeds using mats and sheets, the part to be greened is a part where weeds also grow, but in order not to reduce the suppression function of weeds. In the root system reaching from the mat and the sheet to the ground, a planting method is disclosed in which an air layer is formed with a width of several cm from directly under the mat and sheet.

  On the other hand, a method for suppressing the growth of weeds by devising the composition and structure of the soil has also been proposed (see, for example, Patent Documents 4 to 7).

  Patent Document 4 discloses an immortal bark mulch material in which at least one of waste paper, pulp, gelatin, casein, and lime is mulched to a thickness of 0.1 cm or more, and turf grass or ground cover plant seeds are blended thereon. A method of growing plant seeds by suppressing weeds without using agricultural chemicals by mulching over 1 cm or more is disclosed.

  In Patent Document 5, improved soil obtained by processing construction sludge and construction generated soil to become strongly alkaline, such as a flower bed section, a flower bed section between a roadway and a sidewalk, a cross green area, a shoulder, a shoulder slope, etc. On the ground, an improved soil layer is formed by pressing and fixing to a predetermined thickness that can prevent plants from coming out from the bottom, and then Sedum can germinate and grow on the upper surface of the improved soil layer. A greening pavement method is disclosed in which a cultivated soil layer having a thickness capable of suppressing sedum is formed and sedum seedling or sedum seed is planted in the cultivated soil layer.

  In Patent Document 6, a solidified layer having water permeability and water retention is formed in the soil at the depth of the root that can limit the growth amount of the above-ground part of the plant to a predetermined height in the soil. A revegetation method for planting a covered plant such as Nosyba or Shibazakura is disclosed.

  In Patent Document 7, in order to reduce the growth of weeds, the plant production medium is applied to the plant production medium by applying a hydrophobic granular material having a median individual particle size of less than about 100 μm to a depth of at least 1 cm. A method for controlling weeds has been disclosed in which a hydrophobic granular material is contained in an amount of about 1 wt% or more to about 25 wt% or less by the depth.

  Further, Patent Documents 8 to 11 disclose that a plurality of plants are mixed as a method for suppressing the growth of weeds in a place where weeding is to be performed.

  In Patent Document 8, as a method for suppressing weed growth in a desired place where weeding is to be performed, buckwheat, comfrey, hairy vetch, arctoseca, potentilla, buckwheat, perennial verbena, pine bug and After planting at least one preceding plant selected from Ajuga, or at the same time as planting, Shiba, Shibazakura, Cotoneaster, Syringa, Ryunohige, Higanbana, Oxalis, Sasa and It is disclosed that at least one kind of stable plant selected from azaleas is mixed with a preceding plant for planting or sowing.

  Patent Document 9 discloses that as a weed suppression method that suppresses the growth of weeds in a desired place where weeding is to be performed, planting a mixture of buckwheat or comfrey and buckwheat by spraying construction is disclosed. .

  In Patent Document 10, as a method for suppressing weed growth in a desired place where weeding is an Asteraceae weed, it is possible to use a buckwheat, a comfrey, a hairy vetch, and a buckwheat that have a large covering speed on topsoil. After planting at least one of the selected preceding plants, or simultaneously with planting, Shiba, Shibazakura, Cotoneaster, Echizo, Ryu no Hige, Higanbana, Oxalis, Silane, Sasa and the like It is disclosed that at least one kind of stable plant selected from azaleas is planted in a mixture with a preceding plant.

  In Patent Document 11, in a method of seeding and breeding a perennial low-vegetable ground cover plant with a plurality of seed mixtures in a green surface after seeding on a greening ground, the seed mixture is used as a seed mixture. Select from a base plant selected from the genus Centipedea, Crested genus, and Miyakogusa, which are the main effects of the continuous weed control effect, and the Rhododendron genus or Aoigo genus supplementing the weed control effect until the base plant fully grows It is disclosed to use what consists of a combination with a preceding plant.

Japanese Patent Laid-Open No. 9-248056 JP 2005-328996 A JP 2006-94787 A Japanese Patent Laid-Open No. 11-18590 JP 2004-248513 A Japanese Patent Laid-Open No. 2005-54477 JP-T-2006-505493 Japanese Patent Laid-Open No. 2005-73625 Japanese Patent Application Laid-Open No. 2005-198606 JP-A-2005-198607 JP 2005-328744 A

  In the method of suppressing the invasion of weeds by planting the ground cover plant by mulching and covering the entire surface as disclosed in Patent Documents 1 to 3 above, although the effect of preventing weed invasion after full coating is high, When using ground cover plants such as Hedera, weed control is a problem until the entire surface is covered, and it is necessary to perform full mulching and manual weeding. Therefore, the member used for full surface mulching is expensive, and the weeding by human power is also expensive.

  Moreover, in the method of suppressing the growth of weeds by devising the composition and structure of the soil as disclosed in Patent Documents 4 to 7, it is necessary to change the composition and structure of the culture medium. There is a problem of cost.

  Furthermore, in the method of co-planting a plurality of plants in a place where weeding is to be performed as disclosed in Patent Documents 8 to 11, selection and combination of a plurality of plants are performed according to the soil quality and environment of the land to be actually planted. Since it is necessary to consider, there is a problem that it takes time and effort.

  Therefore, the present invention creates a single vegetation of a ground cover plant using a difference in resistance to herbicides in a greening region, in particular, a shoulder portion of a highway or a median strip, while reducing grass cutting costs, The purpose is to provide a greening management method for creating landscapes.

In order to solve the above problems, the present invention comprises a step of planting a land cover plant having a higher resistance to a specific herbicide than a weed and a low growth height in a greening region, and the ground cover plant covers the greening region entirely. And a step of weeding the weeds at a plurality of predetermined times by using the specific herbicide until coating.
As the above-ground plant, Teika pods and hijaxin are suitable.

  In the present invention, first, a ground cover plant (ground cover plant) having higher tolerance to the herbicide than the weeds (including annual and perennial weeds) and a low growth height, for example, seedlings of Teika quail and hyacinth are planted. Or use it when you are growing up. Next, weeds that have an effect on weed control and that inhibit the overgrowth of ground cover plants by spraying herbicides of low or low types and concentrations that are not harmful to planted or native ground cover plants. Suppress the invasion and create vegetation that is covered entirely by ground cover plants. After Teika Kazura or Hyacinth occupies and dominates, it is possible to suppress the invasion of other weeds by competition between plants, ensuring visibility of distance markers etc. with only herbicides without almost mowing. be able to.

As the time when weeds are weeded using the specific herbicide, the time when weeds occupy a small proportion of the ground cover plants, or before the height of weeds increases and the amount of herbicide used increases. The time can be set appropriately.
As the specific herbicide, when the ground cover plant is Teika quail, any one of bispyribac sodium salt, tetrapion solution, tetrapion granule, fluazifop P emulsion, glyphosate ammonium salt solution, or a combination thereof is used. It can be preferably used.

When the ground cover plant is hijaxin, the specific herbicides are bispyribac sodium salt, flazasulfuron wettable powder, ashram solution, triclopyr solution, mecoprop P potassium salt solution, imazaquin pendimethalin hydrate. Any of these agents, pendimethalin wettable powders, or a combination of these can be preferably used.
In the present invention, “herbicide” is a general term for drugs that kill or suppress growth of weeds, and includes so-called herbicides and mowing reduction agents.

  According to the present invention, a specific herbicide is used until a ground cover plant is planted in a greening area, and the ground cover plant has a higher tolerance to the specific herbicide than the weeds and has a low growth height. By weeding weeds at a given time, we can create a single vegetation of ground cover plants in the greening areas, especially on the shoulders of the highway and the median strip, using the difference in resistance to herbicides, and reduce the cutting costs. A good landscape can be created while reducing.

  In this way, in the present invention, by using ground cover plants such as Teika quail and hijaxin that show strong resistance to herbicides, etc., by the ground cover plants that have been performed so far by physical work such as full mulching and human power weeding. Full coverage can be achieved by chemical work (herbicide spraying) utilizing the difference in the resistance of weeds to Teikakazura and Hijaxin to herbicides.

Since it can be managed only by spraying herbicides, it is possible to reduce full mulching, manpower weeding costs and traffic regulation costs required when using Hedera. In addition, lawn mowing costs and traffic regulation costs necessary for management work, which are necessary for lawn management, can be reduced.
Since herbicides can be sprayed using a herbicide spray vehicle, there is no need to set traffic regulations or signs, so there is no cause for traffic congestion and costs such as labor costs for traffic regulations are reduced. it can.
By planting a single ground cover plant, it is possible to maintain a uniform and excellent landscape without weed invasion.

Embodiments of the present invention will be described below.
In the present embodiment, Teika quail and hijaxin are used as the ground cover planted in the greening area.
Teika Kazura is an evergreen creeper shrub belonging to the family Oleander, which is widely grown in Japan. Teika Kazura grows vigorously, its trunk is hard to thicken, and grows naturally in warm regions such as Honshu, Shikoku, Kyushu, and Okinawa west of the Tokai region. Since it has high resistance to dryness and heat, it has good fixing properties even on land and shoulders. It blooms from May to June and changes its color from autumn to winter.

  Hyacinths are typical of the cypress family juniper hyacinth and American hijaxin, both of which are dwarf evergreen shrubs with branches that radiate and radiate according to the undulations of the ground, spread from the ground and spread from the ground. Rich in nature, the tip of the branch hangs down. Here, Barhaba, a varieties of American hijaxin distributed in the western part of North America, has a maximum tree height as low as 20 cm and is suitable for this construction method.

  Weeds grow at the beginning when we plant this Teikakazura and Hijakshin in a greening area. On the other hand, weeded only weeds and found that bispyribac sodium salt solution can be used as a herbicide with low herbicidal effects against Teika quail and hyacinth. This is composed of sodium 2,6-bis (4,6-dimethoxypyrimidin-2-yloxy) benzoate 3.0% water, surfactant, etc. 97.0% as an active ingredient, manufactured by Riken Green Co., Ltd. Is marketed as a mowing reducing agent under the trade name of “RIKEN Short Keep”.

In addition to this bispyribac sodium salt solution, the following agents can be used.
For Teika Kazura, tetrapion solution (active ingredient sodium 2,2,3,3-tetrafluoropropionate (30.0%): trade name “Frenoc solution 30” manufactured by Sankyo Agro Co., Ltd.), tetrapion granule (Sodium 2,2,3,3-tetrafluoropropionate (10.0%): trade name “Frenock Granule 10” manufactured by Sankyo Agro Co., Ltd.), fluazifop P emulsion (active ingredient butyl = (R ) -2- [4- (5-trifluoromethyl-2-pyridyloxy) phenoxy] propionate (17.5%): trade name “One Side P Emulsion” manufactured by Ishihara Sangyo Co., Ltd.), glyphosate ammonium salt solution (Active ingredient Ammonium = N- (phosphonomethyl) glycinate (41.0%): Product name “Round Up Hi-Lo” manufactured by Nissan Chemical Industries, Ltd. Can be used.

  For hijaxin, flazasulfuron wettable powder (active ingredient 1- (4,6-dimethoxypyrimidin-2-yl) -3- (3-trifluoromethyl-2-pyridylsulfonyl) urea (10.0% ): Ishihara Sangyo Co., Ltd. trade name “Shibagen wettable powder”), Ashram solution (active ingredient N′-methoxycarbonylsulfanilamide sodium (37.0%)): Trade name “Bayer Crop Science Co., Ltd.” Bayer Argylan solution ”), triclopyr solution (active ingredient triethylammonium = 3,5,6-trichloro-2-pyridyloxyacetate (44.0%): trade name“ Ishihara Zytronamine Solution ”manufactured by Ishihara Sangyo Co., Ltd. ], Mecoprop P potassium salt solution (active ingredient (R) -2- (4-chloro-o-tolyloxy) propionic acid Lithium (52.0%): Nippon Soda Co., Ltd., trade name “single-clamping fluid”), imazaquin pendimethalin wettable powder (active ingredient (RS) -2- (4-isopropyl-4-methyl) -5-oxo-2-imidazolin-2-yl) quinoline-3-carboxylic acid (8.50%) N- (1-ethylpropyl) -3,4-dimethyl-2,6-dinitroaniline (38.0) %): BASF Agro Co., Ltd. trade name “Off II Flowable”), pendimethalin wettable powder (active ingredient N- (1-ethylpropyl) -3,4-dimethyl-2,6-dinitroaniline ( 45.0%): trade name “Way Up Flowable” manufactured by BASF Agro Co., Ltd.) can be used.

(Example 1) Conversion from grassland where weeds are preferred to Teikakazura single vegetation Grassland where grasses weed that have grown on the main line shoulders between the Yame and Matsubashi up and down lines of Kyushu Expressway are sprayed with herbicides As a result, about 27 km out of the total road shoulder extended distance of about 140 km was converted to a single vegetation of Teika Kazura.
The work up to the above-mentioned single vegetation conversion was carried out with grass cutting and spraying herbicides according to the invading weed species from the start of combined use until 1997.

From 1998 to 2003, Teika pods that grew naturally in the surrounding area also entered the weeds. Therefore, mowing the lawn and using the above-mentioned bisbilipack sodium salt solution in an amount of 1000 ml / 10a in April and September Twice a year using a herbicide sprayer.
Since 2004, the coverage ratio of Teika pods increased, so the lawn mowing was stopped while spraying of Bispyripac sodium salt solution (1000 ml / 10a) was continued.
As a result, invasion of other weeds is suppressed due to competition between plants at the place where Teika quail is completely covered.
In this way, when lawn mowing was abolished and management of only herbicides was attempted, Teika quail that grows naturally in the surrounding area grew to cover the whole area and present a good landscape, reducing both cutting costs and improving landscape I was able to plan.

  A survey of the vegetation on the shoulders of the main railroad in 1994 before spraying Bisbilipack sodium salt solution and in 2005, about seven years after the start of spraying, showed a significant increase in the habitat of Teikakazura. From this survey result, it was confirmed that the use of bisbilipak sodium salt solution was effective as a method for switching to a single vegetation.

(Example 2)
Test spraying of various herbicides other than bisbilipack sodium salt solution on Teika pods breeding in June 2006 and on Teika quail seedlings planted in April 2007 (1 The herbicide tolerance test of Teika quail was conducted.
Table 1 shows the herbicide specifications used in the test spraying. Table 2 shows the results of examining the tendency of increase and decrease in the number of fresh leaves of Teika quail after 30 days and 60 days after spraying the herbicide on the test area.

  From this experimental result, it was confirmed that fluazifop P emulsion, tetrapion granule, glyphosate ammonium salt solution, and tetrapion solution, which are generally resistant to Teika quail, can be used.

(Example 3)
From June 2003 to November 2004, various herbicides were sprayed and tested on vegetation to test vegetation.
Table 3 shows the specifications of the herbicide sprayed with the herbicide. In addition, after planting hyacinth (June), after 1 month, 4 months, 8 months, 11 months, 1 year, 1 month, 1 year, 4 months Table 4 shows the test results of examining the growth situation of hyacinths after 2 months, 5 months, and 1 year and 4 months after planting the hyacinth.

  The results of this experiment show that the resistance of hyabiaccine to herbicides is mostly flazasulfuron wettable powder, ashram solution, triclopyr solution, mecoprop P potassium salt solution, imazaquin pendimethalin wettable powder, pendimethalin hydrate. Agent and bispyribac sodium salt solution were confirmed to be usable.

As in the above examples, the combination of Teika Kazura or Hijaxin and various herbicides can reduce the work and traffic regulations necessary for weed management, reduce personnel costs and other risks, and reduce the risk of traffic congestion. It was.
In addition, it is empirically known that there are ground cover plants that exhibit strong resistance to herbicides other than Teika Kazura and Hijakushi. Therefore, if various herbicides are sprayed, it is possible to find usable species in the same way.

  The present invention is a greening management method for producing a good landscape while creating a single vegetation of a ground cover plant using a difference in resistance to herbicides in a greening area, and reducing grass cutting costs. It can be widely used as a greening management method for a specific area of a shoulder portion of a general road or a median strip.

Claims (5)

Planting a land cover plant in a greening area that has a higher resistance to a specific herbicide than weeds and a low growth height;
A step of weeding weeds at a plurality of predetermined times using the specific herbicide until the ground cover plant covers the entire green area ;
The greening management method characterized by having .   The greening management method according to claim 1, wherein the ground cover plant is Teika quail.   The said specific herbicide is a chemical | medical agent which uses as an active ingredient 1 or more types chosen from the bispyribac sodium salt, the tetrapion liquid agent, the tetrapion granule, the fluazihop P emulsion, and the glyphosate ammonium salt solution. Tree planting management method.   The greening management method according to claim 1, wherein the ground cover plant is a hyacinth.   The specific herbicide is selected from bispyribac sodium salt, flazasulfuron wettable powder, ashram solution, triclopyr solution, mecoprop P potassium salt solution, imazaquin pendimethalin wettable powder, pendimethalin wettable powder. The planting management method according to claim 4, wherein the method comprises one or more kinds of drugs as active ingredients.