KR100864276B1 - The composition method of combined turf and a method of raising the same - Google Patents

Abstract

Combined turf complementing defects of natural turf and artificial turf is provided to obtain morphological stability and to improve cover rate, permeability, ease of sowing and soil turf establishment rate by protecting root of natural turf and durability. Combined turf comprises: the foundation ground(10); a coating layer(30) to determine the size of sod by limiting the growth of root at the upper part of the foundation ground and to provide morphological stability; a fiber bubble(50) as a foundation in which artificial turf is planted at the upper part of the coating layer; artificial turf(110) planted on the fiber bubble; an earth layer(70) in which natural turf(150) can be stably planted on the basis of the artificial turf; and the natural turf cultivated in tile shape by germination of natural turf seed(130) in the earth layer, wherein the artificial turf comprises a ribbon shaped pile made of synthetic fiber with 80 to 300mum in thickness, 2 to 20mm in depth and 10 to 70mm in height and has Shore A hardness ranging from 65 to 85. Combined turf growth management is achieved by the steps of: forming a polyurethane coating layer on the foundation ground comprising the crushed stone ground with 3x7.5m in width and length and sand with 20cm in thickness; forming fiber bubbles comprising rayon on the coating layer; directly planting artificial turf with 12mm in side depth and 65mm in pile length on the fiber bubbles by a tufting method; and forming an earth layer based on the artificial turf and sowing 10 to 50g/m^2 Kentucky bluegrass seed in the earth layer.

Description

The composition method of Combined turf and a method of raising the same}

The present invention relates to a composite grass and its growth management method, and in particular, the composite turf having excellent morphological stability and durability and easy to transport while maintaining the touch of natural grass and easy to transport, coverage, pitch, pitch The present invention relates to a composite grass and its growth management method which are excellent in quality, easy to plant and easy to make grass, good quality and easy to manage.

Turf is used for stadium applications because it is resistant to frequent cutting of land cover covering land surface and has compressive recovery characteristics. Particularly, in natural grass, there are Kentucky Bluegrass, Penal Real Grass, Tall Fescue, Creeping Vent Grass, etc., which are optimal for growth at the temperature of 15 to 25 ° C. Bermuda grasses are used to formulate each grass according to the frequency used to suit its climate characteristics. In addition, the growth pattern is different according to the type of turf, it is important to manage to have the optimal conditions by different frequency of the appropriate notice (forecast height) and mowing (grass cutting) suitable for each sport. In addition, because grass varieties have different characteristics such as abrasion resistance, pressure resistance, compression recovery, formation rate, root and leaf density, water resistance, and fertilizer demand, the growth and irrigation methods of grass vary depending on the temperature. Turf must be managed for growth. In particular, the higher the height (height) of the grass, the deeper the root (root zone) tends to grow, so this should also be mowed according to the purpose. For example, the lower the height of the grass is applied to a golf course or tee mat, etc., the deeper it can be used for gardens, racetracks or multi-purpose.

In general, these natural grasses contain sufficient moisture, so they have a good texture and provide cushioning, so they are safe from the risk of injury, and there are few frictional scratches when slipped. However, as the use is continued, there is a drawback of severe wear against external force due to severe pressure. Therefore, in the case of natural grass stadium, there is a limit to the number of days of use of the natural grass field because it must be replaced after 2 to 3 days to protect the root of the natural grass. Thus, although studies have been made to express the natural turf feel with artificial turf that has durability such as wear resistance and shape stability, and is easy to manage, it has not been able to exhibit the same touch as natural turf.

Therefore, in recent years in applying grass to a stadium or park, in order to maximize the advantages of the natural grass and artificial turf in order to exhibit the optimal characteristics, natural grass is planted on the artificial grass matrix (Matrix) to the natural grass Research on composite turf with durability to provide morphological stability, to protect natural grass roots, and to provide excellent touch and permanent use is disclosed in Japanese Patent Laid-Open No. 2001-214407 and Korean Patent Invention No. 219383. Proposed. However, in addition to the structural characteristics of the above inventions, the optimum composition of natural grass and artificial turf is required in the grass type and its function expression according to the growth characteristics of the grass according to different climates.

In this regard, Japanese Patent Laid-Open No. 1998-276570 discloses artificial granular soil containing 0.01-2.00 wt% fertilizer component as an active ingredient, adjusted to pH 6-7, and impregnated with 18-30 wt% water. Two or more kinds of mixed grass seeds are mixed in Kentucky Bluegrass, Perennialgrass, Tolsqueske and Finefesque, and the mixture is filled and sealed in a container made of a ventilated material, and left standing at 18 to 35 ° C for 3 to 5 days. It has been proposed a method for the composition of a large-sized mixed grass field, characterized in that the seeding after sowing. However, since the composition is limited to the mixed composition of natural grass, the present invention is to propose a composite grass and its growth management method that can be made smoothly with the composition of natural grass suitable for the climate of Korea.

In order to solve the above problems, the object of the present invention is to combine the advantages of natural grass and artificial turf, while providing the durability and ease of care that is the advantage of natural turf and tactile stability and artificial turf The disadvantage is to provide a composite grass that compensates for.

In addition, another object of the present invention is to provide a composite turf and natural growth management method comprising the natural turf so that the sowing of natural grass is easy, and the artificial turf and artificial turf bubble so that the vegetation is well grown. There is.

In addition, another object of the present invention is to provide a composite grass that is easy to carry so that it can be applied anywhere with a certain turf thickness.

The present invention to achieve the above object is a foundation; A coating layer to determine the size of the turf by limiting the growth of the roots on the upper part of the foundation ground, and to give shape stability; Fiber bubbles as a base on which artificial turf is planted on top of the coating layer; Artificial turf planted on the fiber bubble; A soil layer on which natural grass can be stably vegetated based on the artificial grass; A composite grass comprising natural grass grown in the form of tiles by germinating seeds of natural grass in the soil layer, wherein the artificial grass has a synthetic fiber thickness of 80 to 300 μm, a width of 2 to 20 mm, and a pile height of 10 to 70 mm. It is made of a ribbon in the form of a ribbon, and provides a composite turf characterized in that the hardness at the time of growth management is shore-A 65 to 85.

In addition, the present invention is 400 to 500 cm / hr, the average temperature is 26 to 32 ℃ when the water permeability coefficient of the natural grass grown and germinated in the artificial turf is -9 to 25 ℃, average precipitation 20 to 200 mm , When the average amount of precipitation 200 to 350 mm, provides a composite grass characterized in that 100 to 150 cm / hr.

In addition, the present invention is that the coating layer is made of one or more selected from the group consisting of polyolefin (Polyolefin), polyurethane (Polyurethane) resin, acrylic (Acryl) resin and styrene-butadiene rubber (SBR) Provides composite turf characterized by

In addition, the present invention provides a composite grass, characterized in that the synthetic grass is made of one or more selected from the group consisting of fibers of polyolefin (Polyolefin), polyamide.

In addition, the present invention provides a composite grass, characterized in that the width of the pile in the artificial turf, 11 to 15 mm.

In addition, the present invention is characterized in that the artificial turf in the artificial turf, the density of the artificial turf is formed in 2 to 8 per 1 to 5 inches (inch) in the transverse direction, 2 to 10 per inch in the longitudinal direction Provide composite turf.

In addition, the present invention is that the natural grass is made of one or more selected from the group consisting of Kentucky Bluegrass (KB), Perennial Ryegrass (PR) and Tall Fescue (TF). Provides composite turf characterized by

In addition, the present invention provides a composite grass characterized in that the seeding amount of the natural grass is 10 to 50 g / ㎡.

In addition, the present invention in the growth management method of the composite grass, forming a polyurethane coating layer on the top of the foundation ground consisting of crushed stone ground and horizontal sand 3 × 7.5 m and 20 cm thick, on top of the coating layer After forming a fiber bubble made of high humidity rayon, artificial grass having a side width of 12 mm and a pile length of 65 mm by tufting on the fiber bubble, and forming a soil layer, Kentucky is a natural grass seed in the soil layer. It provides a growth management method of a composite grass characterized in that the bluegrass seed 10 to 50 g / ㎡ is sowing.

In addition, the present invention is 400 to 500 cm / hr, the average temperature is 26 to 32 ℃ when the permeability coefficient of the natural grass grown and germinated in the artificial turf is -9 to 25 ℃, the average precipitation 20 to 200 mm , When the average precipitation amount is 200 to 350 mm, to 100 to 150 cm / hr, the hardness of the grass during the growth management to shore-A 65 to 85, and to mow the grass to maintain 25 mm It provides a growth management method of the composite grass characterized in that the growth management through fertilization, fertilization, reagents, vomiting.

In addition, the present invention is the pH of the soil layer is 5 to 7, the growth management through fertilization, reagents, and soil, the winter season for seeding sowing seeds after the average temperature -9 to 10 ℃, the average precipitation 20 to 50 mm The coating is protected by a light shielding net, and the average temperature of 26 to 32 ℃, the average precipitation amount of 200 to 350 mm in the summer season to provide a growth management method of the composite grass characterized in that the sterilizing agent is sprayed three times a month for the prevention of pests.

In addition, the present invention provides a growth control method for a composite grass characterized in that the growth is managed by mowing to maintain the height of the natural grass grown in the artificial turf bubbled in the soil layer 10 to 50 mm.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially", and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the meanings indicated are intended to aid the understanding of the invention. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

1 is a structural diagram of a composite grass according to an embodiment of the present invention. Composite grass 100 of the present invention includes artificial turf 110 and natural grass 150, artificial grass 110 is installed in the coating layer 30 and the fibrous bubble 50 on the base 10, the seed of the natural grass in the soil layer 70 on the fibrous bubble 50 130 is germinated and may be made of natural grass 150 grown in the form of tiles.

First, the base 10 is preferably a crushed stone layer having an appropriate transmittance, or a structure in which the crushed stone layer and the sand layer are sequentially stacked.

A coating layer 30 is formed on the base, and the coating layer 30 is made of polyolefin-based, polyurethane resin, acrylic resin, and styrene-butadiene rubber (SBR). One or more selected from the group is made, the coating layer will influence the size of the turf of the composite grass. In addition, the shape of the artificial turf 110 so as not to fall out to give stability to the natural turf is tightly bonded to the artificial turf so that the pressure resistance can be improved. In general, natural grass grows in shallow soil (underground) and above ground (ground).

If the growth pattern of the grass is not limited to a certain depth, the roots of the grass expand in the underground and lateral directions, and as the growth progresses, the roots continue to grow in depth and growth area, that is, the crawl diameter. Grass becomes difficult to manage. Thus, by forming the thickness and size of the turf so that the unit production is possible with the convenience of transporting to the stadium or the place where the grass is needed to be designed for easy management provides convenience in the growth of grass. Therefore, by forming the coating layer 30 in the lower portion of the fiber bubble to restrict the grass roots to extend any more, to give the shape stability of the artificial turf, and to easily float the turf while the natural grass is strongly bound to the artificial turf Will be designed.

Fiber bubble 50, the artificial turf 110 is bubbled on top of the coating layer is composed of an upper layer and a lower layer made of a high humidity rayon material and a braid or mesh layer of the thermoplastic resin. In addition, the planting of artificial turf in the fiber bubble is formed by one or more methods selected from the group consisting of a tufting method, a Moquett method and a Raschel method.

In addition, the soil layer 70 is built on the artificial grass 110 for the germination of natural grass seeds 130, the component is clay or sandy loam, masato, red octopus, brother sand, foliar soil, culture soil, pitsmouth, etc. are used in a single or mixed .

Artificial grass 110 suitable for the composite grass 100 of the present invention is made of one or more selected from the group consisting of polyolefin-based, polyamide-based fibers, thickness 80 to 300 ㎛, width 2 to 20 mm, pile height 10 to It is preferred to prepare a synthetic ribbon pile in the form of a flat ribbon of 70 mm. Polyethylene-based is more preferable in the polyolefin fiber. In particular, the height of the artificial turf applied to the composite grass of the present invention will affect the sowing and vegetation of natural grass. Therefore, if the height of the artificial turf is less than 10 mm, the depth of the soil is filled, so that the root of the sown natural grass is weakened, there is a high possibility of death, and when applied to a game or golf course, the divot strength is weak, and exceeds 70 mm However, the turf is so thick that it is difficult to carry. In addition, when the width of the artificial turf is less than 2 mm and the thickness is less than 80 μm, there is a fear that the pile uprightness and firmness may be low, and when the width exceeds 20 mm and the thickness exceeds 300 μm, the leaf width is too wide. Due to the thickness and the difficulty of sowing and laying of natural grass, there is a fear that the slip rate is low.

In the installation of the artificial turf prepared as described above, the artificial turf is preferably installed in the soil layer in 2 to 8 per 1 to 5 inches in the horizontal direction, 2 to 10 per 1 inch in the longitudinal direction. Because, when the installation density of the artificial turf is less than the above range, there is a fear that the effect of artificial turf laying, that is, durability is not improved, because the protection of natural turf is reduced without much difference from the composition of natural grass alone, out of the range This is because, when cotton and stadiums are applied, there is a high risk of injury to players and the natural texture of natural turf is not felt.

On the other hand, the composition of the natural grass 130 suitable for the composite grass is Kentucky Bluegrass (KB), Perennial Ryegrass (PR) and Tall Fescue (Tent Fescue), which is a Korean-style grass suitable for the climate characteristics of Korea; TF) is selected from the group consisting of one or more, Kentucky bluegrass is more preferred. The Kentucky Bluegrass is the most resistant among the cold grass, the resilience is fast, there is an underground crawling to fill the bare ground, the germination rate is 7 to 15 days the grass quality is very good. In addition, the perennial rice is very fast germination rate of 3 to 4 days, but has a weak resistance. Finally, Tols Fescue is a species that has a strong pressure resistance and a germination rate of 7 to 15 with a normal grass quality.

Therefore, it can be configured single or mixed according to the weather conditions or the use of the grass. In addition, the seeding amount of the natural grass is preferably 10 to 50 g / ㎡. This is because, when the seeding amount is less than 10 g / m 2, the coverage of the grass is lowered, and when the seeding amount is more than 50 g / m 2, there is no synergistic effect on the coverage and function according to the increase of the seeding amount. The height of the natural grass grown after the sowing is preferably grown and managed to be 10 to 50 mm. Because, when the height of the natural grass is less than 10 mm, it is easy to damage the grass due to the low pressure resistance, and when it exceeds 50 mm, the grass height is too high because the height of the grass is so low that the touch of the natural grass is not sufficiently exhibited during the game It is easy to slip and may cause injury. If the height of such turf is not managed constantly, it becomes the cause of the stress tolerance of a turf to fall.

Growth management of the composite grass of the present invention is carried out by mowing so that the pH of the soil layer 70 is 5 to 7, the grass is 10 to 50 mm, it is preferable to grow through fertilization, reagents, and soil. In winter, after seeding, seeds can be protected with a 75% shading net for winter winter, and in summer, fungicides such as horicure, sawraito, and almond can be sprayed three times a month to prevent pests.

As described above, the composite turf prepared in the present invention has excellent green color coordination and quality of artificial turf and natural turf so that the feel and visual effect of the grass are exerted, and it is permanent by forming a matrix of natural turf roots and artificial fibers. The grass base is formed to give shape stability, and the roots of natural grass are protected to provide excellent durability, coverage, water permeability, ease of sowing, and grass composition speed, resulting in excellent durability and unit production. Management also has an easy effect.

In addition, when the composite grass of the present invention is applied to the stadium is provided with a stable natural grass of good quality can be used without limitation in the number of days as well as the stadium is protected.

Through the following examples will be described in more detail.

Example  One

A polyurethane coating layer is formed on the top of the foundation ground consisting of crushed stone ground having a width × length of 3 × 7.5 m and sand of 20 cm thickness, and a fiber bubble made of high humidity rayon is formed on the coating layer, and the fiber After planting artificial turf 12 mm in width and pile length 65 mm by tufting on the bubble, the soil layer was formed to 92% height of artificial turf pile, and then Kentucky Bluegrass seed, a natural grass seed in the soil layer, 10 g / m 2 were sown, and the growth state was then periodically checked. In addition, lawn mowing was carried out to keep the grass 25 mm, and growth control was carried out through fertilization, reagents, and clay. In winter, the seeds were protected with a 75% shading net for winter winter after seeding, and in summer, three times a month were sprayed with fungicides such as horicure, sawraito, and almond to prevent pests.

Example  2

In the same manner as in Example 1, in the seeding amount, 15 g / m 2 of Kentucky bluegrass seeds were sown.

Example  3

In the same manner as in Example 1, in the seeding amount, 20 g / m 2 of Kentucky bluegrass seeds were sown.

Example  4

In the same manner as in Example 1, 28 g / m 2 of tall fescue seeds were sown.

Example  5

In the same manner as in Example 1, but in the seeding, 40 g / m 2 of tall fescue seeds were sown.

Example  6

As in Example 1, but in the seeding, 50 g / m 2 of tall fescue seeds were sown.

Example  7

As in Example 1, but in the seeding, a total of 15 g / ㎡ was sown by mixing 80% Kentucky Bluegrass and 20% Perennial.

Example  8

In the same manner as in Example 1, but in the seeding, a total of 20 g / ㎡ was sown by mixing 80% Kentucky Bluegrass and 20% Perennial Rice.

Example  9

In the same manner as in Example 1, but in the seeding, a total of 26 g / ㎡ was sown by mixing 80% Kentucky Bluegrass and 20% Perennial Rice.

Example  10

Same as Example 1, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  11

Same as Example 2, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  12

Same as Example 3, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  13

As in Example 4, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  14

Same as Example 5, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  15

As in Example 6, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  16

Same as Example 7, except that the artificial grass having a leaf width of 2 to 3 mm was used.

Example  17

As in Example 8, but artificial grass having a leaf width of 2 to 3 mm was used.

Example  18

Same as Example 9, but artificial grass having a leaf width of 2 to 3 mm was used.

Comparative example  One

In the same manner as in Example 1, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  2

In the same manner as in Example 2, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  3

In the same manner as in Example 3, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  4

As in Example 4, but without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  5

In the same manner as in Example 5, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  6

In the same manner as in Example 6, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  7

In the same manner as in Example 7, but without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  8

In the same manner as in Example 8, without planting artificial turf, seeded natural grass seeds in the sand.

Comparative example  9

In the same manner as in Example 9, without planting artificial turf, seeded natural grass seeds in the sand.

Test Methods

* In the irradiation date of Table 1 below, the seed of the grass is sown on October 23 of the previous year. (Average temperature 15-25 ° C., average precipitation 150-200 mm), August 21 means growth inappropriate (average temperature 25-32 ° C., average precipitation 200-350 mm).

No. Survey Item Survey Count (times) Survey cycle Assessment Methods One Visual evaluation Tint 5 1 time / month -Grade 1: Brown or without color retention, such as straw.-Grade 9: Dark green. 2 Quality (texture) 5 -1 Grade: Roughness -9 Grade: Uniform and Soft 3 Coverage 5 -1 Grade: Low -9 Grade: High 4 Speed 5 -1 Grade: Late -9 Grade: Fast 5 Turf surface temperature, ground temperature, hardness, permeability coefficient 5 The survey date is February 22 / July 7 / August 21, on a clear day from 1 pm to 2 pm

Test result

division Tint quality Coverage% Speed Feb 22 / July 7/8 Aug 21 / Average Example 1 1/9/9 / 6.2 1/7/8 / 5.6 5/79/100 / 65.8 3/7/8 / 5.4 Example 2 1/9/9 / 6.2 1/7/8 / 5.6 5/80/100 / 68.0 3/7/8 / 5.4 Example 3 1/9/9 / 6.2 1/7/8 / 5.6 5/75/100 / 62.0 3/7/8 / 5.4 Example 4 3/9/9 / 6.6 1/5/6 / 5.4 5/80/40 / 54.0 3/7/8 / 5.4 Example 5 3/9/9 / 6.6 1/6/4 / 5.2 5/80/40 / 56.0 3/7/8 / 5.4 Example 6 3/9/9 / 6.6 1/7/5 / 5.6 5/80/40 / 51.0 3/7/8 / 5.4 Example 7 1/9/9 / 6.2 1/7/7 / 5.2 5/80/70 / 62.0 4/7/8 / 6.0 Example 8 1/9/9 / 6.2 1/7/7 / 5.2 5/80/70 / 64.0 4/7/8 / 6.0 Example 9 1/9/9 / 6.2 1/7/7 / 5.2 5/82/70 / 63.4 4/7/8 / 6.0 Example 10 1/9/9 / 6.6 1/6/7 / 5.2 5/85/100 / 60.0 2/7/7 / 5.4 Example 11 1/9/9 / 6.6 1/6/7 / 5.0 5/80/100 / 59.0 2/7/7 / 5.4 Example 12 1/9/9 / 6.6 1/6/7 / 5.2 5/80/100 / 59.0 2/7/7 / 5.4 Example 13 3/9/9 / 6.6 1/5/2 / 3.8 5/79/10 / 40.8 2/7/7 / 5.4 Example 14 3/9/9 / 6.6 1/6/2 / 4.4 5/71/10 / 39.2 2/7/7 / 5.4 Example 15 3/9/9 / 6.6 1/7/1 / 4.4 5/79/10 / 40.8 2/7/7 / 5.4 Example 16 1/9/9 / 6.6 1/6/8 / 4.8 5/80/70 / 53.0 3/7/7 / 5.2 Example 17 1/9/9 / 6.6 1/6/7 / 4.8 5/80/70 / 53.0 3/7/7 / 5.2 Example 18 1/9/9 / 6.6 1/6/6 / 4.6 5/82/70 / 53.4 3/7/7 / 5.2 Comparative Example 1 - 1/9/8 / 7.4 5/95/100 / 76.0 4/9/9 / 7.2 Comparative Example 2 - 1/9/8 / 7.4 5/96/100 / 76.2 4/9/9 / 7.2 Comparative Example 3 - 1/9/8 / 7.2 5/97/100 / 76.4 4/9/9 / 7.2 Comparative Example 4 - 1/9/2 / 5.6 5/93/20 / 58.0 4/8/9 / 6.4 Comparative Example 5 - 1/9/2 / 6.2 5/90/20 / 57.6 4/8/9 / 6.4 Comparative Example 6 - 1/9/2 / 6.0 5/95/20 / 60.0 4/8/9 / 6.4 Comparative Example 7 - 1/9/7 / 6.0 5/87/60 / 66.4 5/9/9 / 7.4 Comparative Example 8 - 1/9/6 / 5.6 5/92/60 / 70.4 5/9/9 / 7.4 Comparative Example 9 - 1/9/7 / 6.2 5/90/60 / 71.6 5/9/9 / 7.4

In the result of Table 2, the degree of coloration is the average value of the degree of harmonics from the initial dormant phase to the end of growth. Therefore, after growth, natural grass covers 100% of the artificial turf, so there is no negative effect due to the leaf color difference.

In addition, in terms of turf quality, Kentucky Bluegrass (Examples 1,2,3,10,11,12, Comparative Examples 1,2,3) was the best in both the growing season and the inadequate season. There was little. In particular, when the perennial rice is mixed (Examples 7,8,9,16,17,18, Comparative Examples 7,8,9), the wintering was poor due to the late fall sowing, and the quality was poor in summer. In the case of Tols Fescue (Examples 4, 5, 6, 13, 14, 15, and Comparative Examples 4, 5, 6), more than 80% of the grass died due to pests.

In addition, the grass composition rate was analyzed to affect the growth of natural turf caused by artificial turf. When sowing on artificial turf, it was rapidly formed because it absorbed the nutrients and moisture of natural turf, and the leaf width was 12 mm. The composition rate was faster than the artificial turf (Examples 10 to 18) having 2 to 3 mm of artificial turf (Examples 1 to 9), and there was no negative effect on the composition rate of natural grass caused by artificial turf.

division Turf surface temperature Underground temperature Hardness Permeability coefficient pH unit ℃ ℃ cm / hr - Examples 1-9 15/30/41 11/21/30 70/80/76 450/521/130 6.5 / 6.2 / 6.8 Examples 10 to 18 15/30/41 11/22/30 70/80/77 410/195/111 6.5 / 6.6 / 6.8 Comparative Examples 1 to 3 15/30/45 12/22/33 60/78/68 430/461/34 15/30/45 Comparative Examples 4 to 6 17/35/54 13/25/35 Comparative Examples 7 to 9 15/30/45 12/22/33

In the results of Table 3, the difference between the surface of the grass and the ground temperature is 3 to 12 ℃ difference in the turf surface and geothermal synergistic effects due to artificial turf.

In addition, the surface temperature in the condition consisting only of natural grass was higher than in the composite grass seeded in artificial turf, in the 21 August irradiation Tols Fescue rose to 54 ℃ in Comparative Examples 4 to 6 was killed by the bottle. Subsequently, the surface hardness was greater in the composite grass than in the natural grass, and there was almost no difference in hardness between the broad leaf (Examples 1 to 9) and the three leaf (Examples 10 to 18) due to the matting of the grass. On the other hand, the surface hardness of the treated grass with only natural grass was more than 10% softer than the composite grass, which is believed to be due to the shortening or death of grass roots due to the cold phenomenon of cold grass. In addition, the hardness indicates that the roughness of the composite grass is excellent.

In addition, in the permeability coefficient, both the growing time (7/7) and the inappropriate time (8/21) were excellent in the composite grass grown on the artificial grass of broadleaf. This is because the natural turf drainage is poor due to the turbulent death of cold grass. Finally, it was confirmed that the pH of the soil affecting the growth of grass was maintained at 6 to 7 suitable for the growth of cold grass in the composite grass.

Therefore, in the growth of natural grass, there was little difference between sand and artificial grass ground, and natural grass growth tended to be superior in broadleaf artificial turf in terms of composition rate, coverage and quality of natural grass in artificial grass suitable for composite grass. The pressure-response rate was also better in artificial turf than sandy turf. In addition, natural turf suitable for the composite grass was excellent in Kentucky bluegrass, the difference in seeding rate per m 2 was small, and the quality of the composite grass was determined by the management of construction time, environment, and conditions of the composite grass.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a composite grass structure diagram according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

10: foundation ground, 30: coating layer,

50: fiber bubble, 70: earth and sand layer

100: composite grass, 110: artificial grass

130: natural grass seeds, 150: natural grass

Claims (12)

Foundation ground; A coating layer to determine the size of the turf by limiting the growth of the roots on the upper part of the foundation ground, and to give shape stability; Fiber bubbles as a base on which artificial turf is planted on top of the coating layer; Artificial turf planted on the fiber bubble; A soil layer on which natural grass can be stably vegetated based on the artificial grass; As a composite grass comprising the natural grass grown in the form of tiles by germinating seeds of natural grass in the soil layer, The artificial turf is made of a ribbon of a pile of 80 to 300 ㎛ synthetic fiber thickness, 2 to 20 mm in width, 10 to 70 mm in height pile, characterized in that the hardness in the growth management shore-A 65 to 85 Composite grass. The method of claim 1, When the permeability coefficient of natural grass germinated and cultivated in the artificial turf is -9 to 25 ℃, the average precipitation is 20 to 200 mm, 400 to 500 cm / hr, average temperature 26 to 32 ℃, average precipitation 200 to Composite grass, characterized in that when the 350 mm, 100 to 150 cm / hr. The method of claim 1, The coating layer is a composite grass characterized in that at least one selected from the group consisting of polyolefin (Polyolefin), polyurethane (Polyurethane) resin, acrylic (Acryl) resin and styrene-butadiene rubber (SBR) . The method of claim 1, In the artificial turf, synthetic grass is characterized in that the polyolefin (Polyolefin), polyamide-based composite grass characterized in that at least one selected from the group consisting of fibers. The method of claim 1, In the artificial turf, composite grass, characterized in that the width of the pile is 11 to 15 mm. The method of claim 1, In the artificial turf, the composite turf density is composed of 2 to 8 per 1 to 5 inches in the transverse direction, 2 to 10 per inch in the longitudinal direction in the soil layer. The method of claim 1, Composite grass characterized in that the natural grass is selected from the group consisting of Kentucky Bluegrass (KB), Perennial Ryegrass (PR) and Tall Fescue (TF) . The method of claim 1, Composite grass characterized in that the seeding amount of the natural grass is 10 to 50 g / ㎡. In the growth management method of the composite grass, A polyurethane coating layer is formed on the upper part of the foundation ground composed of crushed stone having a width × length of 3 × 7.5 m and sand having a thickness of 20 cm, A fiber bubble made of high humidity rayon is formed on the coating layer, The artificial turf having a side width of 12 mm and a pile length of 65 mm is planted on the fiber foam by tufting, After the soil layer is formed on the basis of the artificial turf, 10 to 50 g / m2 seed of a natural turf seed, which is a natural grass seed, is grown in the soil layer. The method of claim 9, When the permeability coefficient of natural grass germinated and cultivated in the artificial grass is -9 to 25 ℃, the average precipitation 20 to 200 mm, 400 to 500 cm / hr, average temperature 26 to 32 ℃, average precipitation 200 to When 350 mm, 100 to 150 cm / hr, the hardness of the grass during the growth management to shore-A 65 to 85, mowing the grass to maintain 25 mm, fertilization, reagents, Growth management method of the composite grass characterized in that the growth management through the topsoil. The method of claim 9, The soil layer has a pH of 5 to 7, and is grown and managed through fertilization, reagents, and soil, and in winter, the coating is protected with a light shielding net for winter winter with an average temperature of -9 to 10 ° C. and an average precipitation of 20 to 50 mm. And, the average temperature of 26 to 32 ℃, the average precipitation amount of 200 to 350 mm in the summer, the growth management method of the composite grass, characterized in that the fungicide is sprayed three times a month to prevent pests. The method of claim 9, The growth management method of the composite grass characterized in that the growth is managed by mowing to maintain the height of the natural grass grown in the artificial turf bubbled in the soil layer 10 to 50 mm.

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