JP2002065060A - Sod and raising base for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide sod obtained by a management type (factory type) production which does not taking out surface soil of an agricultural field or grass field where the sod is produced, uses a light artificial material (non-agricultural field material) such as carbonized matter of paper sludge (PS) and can produce the sod even on a man-made ground without needing the agricultural field, and to provide a raising base, that is, sod on which seeds of lawn are laid. SOLUTION: The sod and the raising base, that is, sod on which seeds of lawn are laid have the following structure: the soil of the sod contains a sheet- shaped net; and the net entangles roots of lawn and prevents the soil from falling off during transferring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turf used as a greening material using non-agricultural land such as artificial soil and lightweight soil.

[0002]

2. Description of the Related Art As a material for greening, "harvesting turf" is used as a general method. However, the current turf turf materials are cultivated and cultivated on farmland and grassland, cut together with topsoil, transported to various sites, and used. Problems have been pointed out with such existing turf turf materials from the viewpoint of preserving the fertility of the topsoil rich in nutrients and maintaining the ecological environment. There is concern that continuous production of turf on the same land will result in a decrease in production volume due to a decline in geographical strength, an increase in production costs due to heavy use of fertilizers and pesticides, and an impact on the surrounding environment.

[0003]

SUMMARY OF THE INVENTION Respecting such public opinion and based on the concept of environmental conservation, the present invention does not remove topsoil from farmland or grassland where the turf is produced, and is a lightweight paper sludge. (PS) The problem can be solved by a controlled production (factory production type) in which an artificial material (non-agricultural land material) such as a carbide is used and agricultural land can be produced without using an agricultural land.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a turf having a sheet-like net in the soil, the net being entangled with the root of the turf to prevent the soil from collapsing during transportation. It is an object of the present invention to provide the above-mentioned growth base having the sheet-like net in the floor soil thereof.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The net of the present invention is preferably used in the form of a sheet and covers almost the entire surface of a turf.
It is preferable to use a 50 mm mesh. More preferably, it is 5 to 10 mesh. When the net is not cut into a sheet but used by being chopped, the entanglement with the root of the turf is not sufficient, so that collapse of the floor soil during transportation cannot be sufficiently avoided. If the mesh size is 5 mm or less, there is a disadvantage that the roots are prevented from entering the floor soil. If the mesh size is 10 mm or more, the roots are not sufficiently entangled with the net, and the effect of preventing the collapse of the floor soil is lost. Rayon, biodegradable plastic,
PVC, polyethylene, polypropylene, cotton, hemp,
It can be selected from the group consisting of coated conductors, wires and metal wires. Among them, it is desirable to use rayon and biodegradable materials such as biodegradable plastics, cotton and hemp, in which the roots of turfgrass decompose in soil after elongation.

[0006] When there is a danger of bed soil collapse, an adhesive selected from the group consisting of synthetic resin, cemedine-based or asphalt emulsion, or a binder selected from a polymer blend or the like is mixed with the floor soil as a material for increasing hardness. . The amount is 0.01 to 10% by volume based on the floor soil.

[0007] 5 to 60% by volume of the bed soil used in the present invention is preferably a paper sludge carbonized fired material, more preferably 10 to 40% by volume. If it is less than 5% by volume, there is a drawback that the lightness characteristic of paper sludge carbide cannot be exhibited, and if it is more than 60% by volume, there is a drawback that the PH against the floor soil becomes high, which may hinder the growth of turfgrass. . The paper-sludge carbonized fired product mentioned here is obtained by carbonizing and firing paper sludge which is factory wastewater treatment sludge discharged from a recycled paper mill using waste paper as a raw material. The carbonized fired paper sludge contains almost the same amount of clay-based inorganic components such as calcium carbonate and kaolin existing as fillers of used raw paper and paper fibers (cellulose) of organic components. A more strict definition of carbonized paper sludge is described in
As disclosed in 1-61141 and JP absolute dry weight, combustibles: 10~20%, SiO _2: 20~35
%, Al ₂ O ₃ : 15 to 20%, Fe ₂ O ₃ : 5 to 15%,
CaO: 10 to 20% and MgO: 5 to 15%,
The water absorption according to JIS C2141 is 70 to 150%, and the specific surface area according to the BET adsorption method is 60 to 120 m.
² / g, and the pH according to JIS K1474 is 8.0 to 8.0.
It is a porous granular carbonized fired product having open cells and having an open cell of 11.0. Further, from another viewpoint, this means that the volume porosity is 75% or more, the void volume is 1500 mm ³ / g or more, the average void radius is 20 to 60 μm, and the void having a radius of 1 μm or more occupying the total void volume. Is 70% or more. In addition to paper sludge charcoal, charcoal such as sawdust charcoal, plant charcoal, activated charcoal, rice charcoal, wood charcoal, rice straw charcoal can also be used.

[0008] The thickness of the floor soil of the present invention is preferably 10 to 30 mm, more preferably 15 to 30 mm. If it is 10 mm or less, there is a disadvantage that the floor soil is easily dried and there is a risk of impairing the growth of turfgrass, and if it is 30 mm or more, there is a disadvantage that lightness is lost and handling during transportation and construction becomes difficult.

[0009] In the present invention, a soil-fall prevention sheet such as newsprint, for example, a perforated perforated sheet may be provided in the floor soil and below the net. The sheet is preferably a biodegradable material having air permeability and water permeability, such as newsprint having a plurality of holes at substantially regular intervals. After using paper to fix the turf to the soil, it is naturally degraded by microorganisms and does not pollute the environment.

[0010]

EXAMPLE 1 A plastic seedling box having a height of about 30 mm with a drainage hole was ventilated at a constant interval to a bottom part generally used for cultivation of paddy rice. Spread the water-based biodegradable material on the bottom of the seedling box, and put 40% by volume in it.
And 60% by volume of volcanic ash or akadama and a common fertilizer for grassland as a fertilizer. Desirably applied nitrogen fertilizer, phosphate, 30g about per sodding 1 m ² things content more than 10% each of potassium. The mixed soil is put in about 1/3 of the capacity of the nursery box, and a 5 mm mesh biodegradable plastic floor soil fall prevention net is laid so as to cover the entire nursery box. The mixed soil of volcanic ash (Akatama soil) is filled up to about 80% of the capacity of the nursery box. Seed is sown mainly the common species of Kentucky bluegrass, tall fescue, the tension turf 1m ² per 100g the perennial ryegrass the cold season turfgrasses three mixed were mixed. After sowing, watering is sufficiently carried out with a watering can to crush the floor soil surface. Thereafter, watering is performed periodically so that the floor soil does not dry.

[0011] After germination, water is regularly irrigated and allowed to stand still in a well-lit, warm place. After the germination, the roots have grown sufficiently and the roots have turned to the bottom of the growing box, and if the floor soil does not collapse even when the turf section is removed from the seedling box, remove it from the seedling box and place it on the soft soil surface to take root Measure. Example 2 The same operation as in Example 1 was carried out except that a synthetic resin adhesive (trade name: P Green) was added to the floor soil of Example 1 at 0.5% by volume based on the floor soil. went. Example 3 The same operation as in Example 1 was performed, except that a soil-fall prevention sheet made of newspaper was attached to the bottom of the floor of the turf of Example 1.

The turf of Examples 1 to 3 was lightweight and could be easily transported without any collapse of the flooring even when rolled.

[0013]

According to the present invention, it is not necessary to control weeds when producing turfgrass according to the present invention, it is possible to maintain uniform surface turf quality, and it depends on weather and court conditions. The time required to ship as a turf is 5-20
Double. Also, in cold regions with snowfall, such as Hokkaido, establishment of cultivation methods at room temperature enables year-round production of turf. In addition, the turf of the present invention is lightweight and can be easily transported even if it is rolled without collapse of the floor soil.

[Brief description of the drawings]

FIG. 1 shows a cross-sectional view of an example of the upholstery of the present invention in a plastic container.

Claims (9)

[Claims] 1. The upholstered turf having a sheet-shaped net in the floor soil, the net being entangled with the roots of the turfgrass to prevent the floor soil from collapsing during transportation. 2. The net is made of rayon, biodegradable plastic, vinyl chloride, polyethylene, polypropylene,
2. The turf according to claim 1, wherein the turf is selected from the group consisting of cotton, hemp, covered conductors, wires, and metal wires. 3. The upholstered turf according to claim 1, wherein 5 to 60% by volume of the floor soil is a carbonized fired product of paper sludge. 4. The turf according to claim 1, wherein the net has a mesh of 1 to 50. 5. The upholstered turf according to claim 1, wherein the thickness of the floor soil is 10 to 30 mm. 6. The upholstered turf according to claim 1, further comprising a soil-fall prevention sheet at the bottom of the floor. 7. The turf according to claim 1, wherein the soil-fall prevention sheet is a biodegradable material. 8. The upholstered turf according to claim 1, wherein an adhesive or a sticking agent is mixed with the floor soil as a material for increasing the hardness to prevent the floor soil from collapsing. 9. In a growth base, which is a turf before sowing,
The above-mentioned growth base having a sheet-like net in its floor soil.