JP7082787B2 - Ground covering and surface covering method for weed control - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act Explained at the 11th Business Matching Fair in Hamamatsu 2017 on July 19, 2017

The present invention relates to weed control on unpaved ground such as medians and promenades of roadways, planting spaces, parks, office and factory premises, and residential gardens. Regarding the surface covering for weed control and the surface covering method that made it difficult to grow.

As the surface covering for weed control, weeds that have created a weed control layer by sprinkling dried bamboo chips, charcoal, a foamed polyurethane agent mixed with dried bamboo chips, and dried bamboo chips in order from the ground surface. A pest control method has been proposed (see, for example, Patent Document 1). In this weed control method, the light-shielding property of charcoal or polyurethane foam is used to prevent the growth of weeds.

As another surface covering for weed control, a mixture of dried bamboo chips, soil particles such as masonry, and a binder such as a rubber adhesive is laid on the slope or road surface to prevent it from decaying. A coating material for civil engineering, which is less likely to generate pests and has excellent durability, has been proposed (see, for example, Patent Document 2). In this civil engineering dressing, weeds are prevented from growing by preventing peeling and cracking of the dressing. In this civil engineering coating material, dried bamboo is used so that the binder does not react with the moisture contained in the bamboo chips to cause cloudiness or foaming, or the solidification rate is reduced and the adhesive strength is not impaired. It is used.

Japanese Unexamined Patent Publication No. 2011-19470 (paragraph 0013, FIG. 6) Japanese Unexamined Patent Publication No. 2006-177072 (paragraph 0005,0006)

However, in the weed control method according to Patent Document 1, since a polyurethane foaming agent is used in addition to the naturally occurring material, it is difficult to say that the material is naturally occurring as a whole, and it is also said that the construction is in harmony with the natural environment. It's hard.

Further, in the weed control method according to Patent Document 1, the soil is damaged because the polyurethane foam agent covers the ground surface without gaps and contains the soil. Further, in the weed control method according to Patent Document 1, since the foamed polyurethane agent that is not decomposed in the natural environment is used, the land cannot be returned to the green area unless the foamed polyurethane agent is removed.

Even in the civil engineering covering material according to Patent Document 2, since a binder material such as a rubber adhesive is used in addition to the naturally occurring material, it is difficult to say that the material is naturally occurring as a whole, and it is in harmony with the natural environment. It is hard to say that the construction was done.

Further, even in the civil engineering covering material according to Patent Document 2, the soil is damaged because the ground surface is covered with the binder to contain the soil. Further, even in the civil engineering coating material according to Patent Document 2, since a rubber adhesive, a synthetic resin adhesive, a binder such as asphalt cement, which is not decomposed in a natural environment, is used, the civil engineering coating material is removed. Unless you do, you cannot return the land to greenery.

Therefore, it is an object of the present invention to solve the above-mentioned problems and to provide a surface covering material for weed control and a surface covering method for controlling weeds by covering the ground surface only with a natural material to make it difficult for weeds to grow.

In order to solve the above-mentioned problems, in the invention according to claim 1, the surface covering for weed control, which is formed by laying bamboo chips on the ground surface, is composed of bamboo chips made of raw bamboo and bamboo chips made of dead bamboo. , Bamboo chips made of raw bamboo were laid on the ground surface.

In the invention according to claim 2, the method of covering the ground surface for weed control by laying bamboo chips on the ground surface is as follows: laying bamboo chips made of raw bamboo on the ground surface and laying bamboo chips made of dead bamboo on the ground surface. I tried to do it.

According to the invention of this application, since the surface covering for weed control is composed only of bamboo chips, the surface covering for weed control can be made excellent in air permeability and water permeability. Here, since the structure of bamboo consists of tubular vascular bundles and honeycomb-shaped vascular bundle sheath cells surrounding the vascular bundles, small pieces (called chips) obtained by crushing bamboo become porous bodies, and are breathable and water permeable. Excellent in water absorption and water retention.

Therefore, according to the invention of this application, the bamboo chips laid on the ground surface become like a layer of air due to the good air permeability and water permeability of the bamboo chips. Therefore, according to the invention of this application, even if weed seeds fall on the surface covering for weed control, the weed seeds are difficult to germinate because the surface covering is dry. Further, according to the invention of this application, the bamboo chips laid on the ground surface become like a layer of air, so that even if the seeds of weeds germinate, the roots will dry out and die before reaching the ground surface. I can't take root well in the ground. Therefore, according to the invention of this application, it is possible to make it difficult for weeds to grow only with natural materials.

Here, weeds that propagate on rhizomes such as horsetail and Imperata cylindrica are extremely difficult to control and exterminate. According to the invention of this application, bamboo chips laid on the ground surface interfere with photosynthesis of weeds. It is possible to suppress the occurrence of horsetail and Imperata cylindrica. Further, according to the invention of this application, bamboo chips laid on the ground surface interfere with photosynthesis of weeds, so that even if horsetail or Imperata cylindrica occurs, the stem becomes thin like a bean sprout, and weeding can be easily done by hand. You can also do it.

Further, according to the invention of this application, since the surface covering for weed control is composed only of bamboo chips, the surface covering for weed control can be composed of one that is decomposed in a natural environment. Therefore, according to the invention of this application, the heat and gas generated when the bamboo chips are decomposed kill the weed seeds even if the weed seeds remain in the ground. Therefore, according to the invention of this application, it is possible to make it difficult for weeds to grow only with natural materials.

Further, according to the invention of this application, since the surface covering for weed control is composed of one that is decomposed in a natural environment, the decomposed bamboo chips can be used as compost for soil preparation. In addition, when returning the land to the green space, it is possible to easily return it to the green space by squeezing bamboo chips.

In addition, according to the invention of this application, since the surface covering for weed control is composed only of bamboo chips, it can be said that the surface covering for weed control is a natural material. According to the invention of this application, since the ground surface is covered only with a naturally occurring material, it is artificial like the weed control method according to Patent Document 1 and the civil engineering covering material according to Patent Document 2. It does not contain the soil with objects and does not damage the soil. Further, according to the invention of this application, due to the good breathability and water permeability of the bamboo chip, the moisture does not stay and mold does not occur unlike the wood chip. Furthermore, according to the invention of this application, the bamboo chip becomes a porous body and is excellent in water absorption and water retention. Therefore, the temperature rise in the surrounding space due to the heat of vaporization is alleviated in summer and the porous body in winter. The air contained in the soil enhances heat retention and prevents the temperature in the soil from dropping, creating a favorable environment for planting.

As described above, according to the invention of this application, since bamboo chips are used as a surface covering for weed control, it is possible to utilize bamboo cut down in an area suffering from bamboo damage as a useful resource from waste. can.

According to the invention of claim 1, since the ground surface covering for weed control by laying bamboo chips on the ground surface was constructed by laying bamboo chips made of raw bamboo on the ground surface, the bamboo chips were disassembled. To be correct, the bamboo chips are in a state where they are easy to ferment, and the effect of making it difficult for weeds to grow can be enhanced. Here, it is known that lactic acid bacteria are present in bamboo. According to the invention of claim 1, by covering bamboo chips made of raw bamboo with bamboo chips made of dead bamboo, raw bamboo is used. Bamboo chips made of raw bamboo become anaerobic, and the water and lactic acid bacteria contained in the bamboo chips made of raw bamboo promote the fermentation of the bamboo chips.

Further, according to the invention of claim 1, the surface covering for weed control is constructed by laying bamboo chips made of raw bamboo on the ground surface. In other words, the bamboo chips made of dead bamboo are made from raw bamboo. Since it is laid on bamboo chips, it is possible to prevent the scattering of bamboo chips, more specifically, the scattering of bamboo leaves and twigs. Explaining this effect in detail, when bamboo withers, leaves and twigs fall from the culm, so bamboo chips made of withered bamboo contain almost no bamboo leaves or twigs that are easily scattered. Therefore, according to the invention of claim 1, by laying a bamboo chip made of dead bamboo on a bamboo chip made of raw bamboo, the bamboo chip made of dead bamboo presses the bamboo chip made of raw bamboo. , Prevents the scattering of bamboo leaves and twigs contained in bamboo chips made of raw bamboo.

Further, according to the invention of claim 1, since the surface covering for weed control is constructed by laying a bamboo chip made of dead bamboo on the bamboo chip made of raw bamboo, the fading of the bamboo is not noticeable. can do. Explaining this effect in detail, bamboo turns yellow when exposed to direct sunlight, but according to the invention of claim 1, bamboo chips made of already faded dead bamboo are replaced with bamboo made of lush raw bamboo. By laying it on the chips, it covers the fading of the bamboo chips made of raw bamboo.

According to the invention of claim 2, the method of covering the ground surface for weed control by laying bamboo chips on the ground surface is the method of laying bamboo chips made of raw bamboo on the ground surface and bamboo chips made of dead bamboo on the ground surface. To make it easier to understand, even women and elderly people can easily install it because it is possible to install it simply by laying bamboo chips that are light enough to be carried by women and elderly people. .. Therefore, according to the invention of claim 2, people in mountainous areas suffering from bamboo damage can easily implement a surface covering method for weed control.

It is a conceptual diagram of the ground covering for weed control which concerns on embodiment. It is explanatory drawing of the ground surface covering method for weed control which concerns on embodiment. Among the explanatory diagrams showing the effect of the ground covering for weed control according to the embodiment, (a) is an explanatory diagram immediately after construction, and (b) is an explanatory diagram 6 months after construction.

First, the matters underlying the creation of this invention will be briefly described. The applicant has been engaged in the landscaping business in Hamamatsu City, Shizuoka Prefecture for 40 years since its establishment in 1977. The applicant, whose predecessor started training as a gardener in Kyoto and trained at Nanzenji and Kiyomizudera, has been focusing on private residences where he can fully demonstrate the results of his training since he returned to his hometown of Hamamatsu. I run a landscaping business.

Here, in the landscaping industry, the demand for public works increased during the bubble economy period (1986-1991), and public works became the center of orders. However, the predecessor has consistently been engaged in the landscaping business centered on private residences, while trying to respond to the needs of customers and society in detail. This invention was created based on the predecessor's teaching that we should keep in mind the fine-tuned response to the needs of our customers and society.

The inventor is the second generation of the applicant. The inventor tries to respond to the needs of customers and society in detail according to the teachings of his predecessor, and while facing nature as a gardener, he abandons the pretense that nature is controllable and instead uses natural things. I came to think about making use of it as it is. The inventor continued to use bamboo in line with the present age because bamboo is a natural material that is closely related to humans, as there are many Chinese characters for bamboo crowns while abandoned bamboo grove has become a social problem. I wanted to go.

When the inventor was thinking about making the best use of natural things in their natural state, the inventor was asked by a customer for a new idea for weed control. Customers' requests for weed control are not the existing weed control such as unnatural and unsightly control sheets and herbicides that may kill the surrounding plants, but the difficult problem of beautiful appearance and not damaging the soil. there were.

In response to this difficult problem, the inventor immediately came up with the idea of laying wood chips, but the disadvantages of wood chips are that they tend to contain moisture, which makes them moist, moldy, and insect-prone. For some reason, we thought that Woodchip could not completely meet the needs of our customers.

Nevertheless, the inventor thought that wood chips were the only alternative to weed control sheets and herbicides, but bamboo grove is less prone to weed growth than thickets, especially when the bamboo piled up in the open decays and the bamboo scraps are on the ground surface. I noticed that there were almost no weeds growing in the area covering the area.

Then, the inventor found that if the environment of the bamboo forest, specifically, the state where the bamboo piled up in the open decays and the bamboo scraps cover the ground surface can be reproduced, weed control can be performed while keeping the natural things as they are. This is what led to the creation of this invention.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a conceptual diagram of a ground covering for weed control according to an embodiment. FIG. 1 describes the configuration of the surface covering 1 for weed control when the surface covering 1 for weed control is laid on the traffic island I.

As shown in FIG. 1, the surface covering 1 for weed control is composed of a bamboo chip 2 made of raw bamboo and a bamboo chip 3 made of dead bamboo. The ground surface covering 1 for weed control according to the embodiment is configured to lay bamboo chips 2 made of raw bamboo on the ground surface S.

Bamboo chips 2 made of raw bamboo are small pieces of crushed raw bamboo, and include small pieces of leaves and twigs in addition to culms.

The bamboo chip 3 made of dead bamboo is a small piece of crushed dead bamboo. Here, when bamboo withers, leaves and twigs fall from the culm, so that the bamboo chip 3 made of withered bamboo contains almost no bamboo leaves or twigs.

Then, in the ground surface covering 1 for weed control according to the embodiment, a bamboo chip 2 made of raw bamboo is laid on the ground surface S, and a bamboo chip 3 made of dead bamboo is laid on the bamboo chip 2 made of raw bamboo. Has been done.

FIG. 1 shows a case where the surface covering material 1 for weed control is laid on the traffic island I. In the surface covering material 1 for weed control according to the embodiment, the bamboo chips 3 made of dead bamboo are made from raw bamboo. Since it is laid on the bamboo chip 2, the bamboo chip 3 made of dead bamboo holds down the bamboo chip 2 made of raw bamboo, and the bamboo leaves and twigs contained in the bamboo chip 2 made of raw bamboo are scattered. It's hard to do. Therefore, in the surface covering 1 for weed control according to the embodiment, even if it is constructed in a well-ventilated place such as Traffic Island I, the bamboo leaves and twigs contained in the bamboo chip 2 are scattered and pollute the surrounding area. There are few.

Further, in the surface covering 1 for weed control according to the embodiment, since the bamboo chip 3 made of dead bamboo is laid on the bamboo chip 2 made of raw bamboo, in other words, it has already faded and withered. Since the bamboo chip 3 made of bamboo is covered with the bamboo chip 2 made of lush raw bamboo, the fading of the bamboo chip 2 made of raw bamboo is covered and the fading of the bamboo is not noticeable.

Further, in the surface covering 1 for weed control according to the embodiment, since the bamboo chip 3 made of dead bamboo is laid on the bamboo chip 2 made of raw bamboo, the bamboo chip 2 made of raw bamboo withers. It becomes anaerobic when it is covered with bamboo chips 3 made of bamboo, and the water and lactic acid bacteria contained in the bamboo chips 2 made of raw bamboo promote the fermentation of the bamboo chips, and the heat generated when the bamboo chips are decomposed. And gas kill weed seeds.

In addition, the surface covering 1 for weed control according to the embodiment is composed of a bamboo chip 2 made of raw bamboo and a bamboo chip 3 made of dead bamboo, so that the bamboo chips have good breathability and water permeability. Therefore, the surface covering 1 becomes like a layer of air. Therefore, in the surface covering 1 for weed control according to the embodiment, even if the seeds of weeds fall on the surface covering 1, the seeds of weeds are difficult to germinate because the surface covering 1 is dry. ..

FIG. 2 is an explanatory diagram of a ground surface covering method for weed control according to an embodiment. As shown in FIG. 2, in the surface covering 1 for weed control according to the embodiment, the main steps are (a) removal of surface soil, (b) laying of bamboo chips 2 made of raw bamboo, and (c) withering. Bamboo chips 3 made of bamboo are laid.

As shown in FIG. 2A, the removal of the topsoil is a step of scraping off the topsoil having a thickness corresponding to the thickness of the ground covering 1 for weed control to be laid, for example, the surface covering 1 for weed control. When laying with a thickness of about 10 cm, the topsoil is removed with a thickness of about 12 to 13 cm. To remove the surface soil, when laying the surface covering 1 for weed control inside the curb as in Traffic Island I (see Fig. 1), the laid surface covering 1 for weed control should not be higher than the curb. This is not a necessary process in places where weed control surface coverings 1 may be piled up, such as planting spaces. When the topsoil is removed, the seeds and rhizomes of the weeds contained in the topsoil are also removed, which makes it more difficult for weeds to grow.

As shown in FIG. 2B, the laying of the bamboo chips 2 made of raw bamboo is a process of laying the bamboo chips 2 made of raw bamboo on the ground surface, for example, the ground covering 1 for weed control is about 10 cm. When laying with a thickness, bamboo chips 2 made of raw bamboo are laid with a thickness of about 8 cm. When laying the bamboo chips 2 made of raw bamboo, it is desirable to poke the bamboo chips 2 made of raw bamboo spread with a rake or roll them with a roller.

As shown in FIG. 2 (c), the laying of the bamboo chip 3 made of dead bamboo is a step of laying the bamboo chip 3 made of dead bamboo on the bamboo chip 2 made of raw bamboo, for example, weed control. When laying the ground covering 1 for use with a thickness of 10 cm, a bamboo chip 3 made of dead bamboo is laid with a thickness of about 2 cm. For the laying of the bamboo chips 3 made of dead bamboo, it is desirable to roll the laid ground surface covering 1 for weed control with a roller in order to compact the surface covering 1 for weed control.

Although not shown, in the weed control surface covering method according to the embodiment, a standard bamboo chip 2 on the surface layer of the weed control surface covering 1 spread after laying the bamboo chip 3 made of dead bamboo. Water the weed control surface covering 1 that has been spread to remove bamboo debris, which is smaller and lighter than 3, 3 from the surface layer to the lower layer. As described above, in the weed control ground covering method according to the embodiment, by watering the spread ground surface covering 1 for weed control, small and light bamboo scraps are less likely to be scattered.

3A and 3B are explanatory views showing the effect of the ground covering 1 for weed control according to the embodiment, in which FIG. 3A is an explanatory diagram immediately after construction and FIG. 3B is an explanatory diagram 6 months after construction. be. In FIG. 3, in order to compare the effects of the surface covering 1 for weed control, the section from which weeds were extracted was designated as control plot C.

As shown in FIG. 3 (b), after 6 months of weeding, weeds are overgrown in the section where weeds are just removed, and in the section where the surface covering 1 for weed control is laid. Almost no weeds grow.

The reason why weeds hardly grow is that in the ground surface covering 1 for weed control according to the embodiment, the laid bamboo chips 2 and 3 (see FIGS. 1 and 2) have the air permeability of the bamboo chips 2 and 3. It is thought that it becomes like a layer of air because of its good water permeability. Therefore, even if weed seeds fall on the surface covering 1 for weed control, the seeds of weeds are difficult to germinate because the surface covering 1 for weed control is dry. Further, even if the seeds of the weeds that have fallen on the surface covering 1 for weed control germinate, the roots dry out and die by the time they reach the surface of the earth, and the roots cannot be successfully rooted in the ground.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment. In the weed control surface covering 1 according to the embodiment, a case where the weed control surface covering 1 is laid with a thickness of about 10 cm has been described, but the weed control surface covering 1 has a thickness of 5 cm or more. It doesn't matter if there is. From trial and error of the inventor, it was found that when the surface covering 1 for weed control is less than 5 cm, weed seeds that have fallen on the surface covering 1 for weed control grow.

Further, in the surface covering 1 for weed control according to the embodiment, when the surface covering 1 for weed control is laid with a thickness of about 10 cm, bamboo chips 2 made of raw bamboo are laid with a thickness of about 8 cm. I explained that the bamboo chip 3 made of dead bamboo is laid with a thickness of about 2 cm, but the bamboo chip 2 made of raw bamboo is laid on the ground surface, in other words, the bamboo chip 3 made of dead bamboo is made of raw bamboo. If it is laid on the chip 2, the thickness thereof is not limited to the embodiment. However, according to the inventor's knowledge, the area of dead bamboo occupies about 20% of the area of abandoned bamboo grove, so the ratio of bamboo chips 2 made of raw bamboo to bamboo chips 3 made of dead bamboo is Naturally, the ratio is about 8: 2.

1 Ground covering for weed control 2 Bamboo chips made of raw bamboo 3 Bamboo chips made of dead bamboo S Ground surface

Claims (2)

In the surface covering for weed control, which is made by laying bamboo chips on the surface of the earth,
The bamboo chips consist of bamboo chips made of raw bamboo and bamboo chips made of dead bamboo.
Bamboo chips made of raw bamboo are laid on the surface of the earth.
A surface covering for weed control, wherein the bamboo chips made of dead bamboo are laid on the bamboo chips made of raw bamboo. In the surface covering method for weed control, which consists of laying bamboo chips on the surface of the earth,
A surface covering method for weed control, characterized in that bamboo chips made of raw bamboo are laid on the ground surface and bamboo chips made of dead bamboo are laid on the bamboo chips.

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