JPH05123055A - Production of turf for transplantation - Google Patents

Abstract

PURPOSE:To easily obtain the subject turf in a short time by placing planting soil on the ground or an artificial culture bed at a prescribed thickness, putting an organism infected with VA mycorrhizal bacteria on the soil, sowing turf seed or seed turf or placing turf on the soil and culturing after filling a joint soil. CONSTITUTION:A planting soil is placed on ground or an artificial culture bed at a thickness of 5-50mm. An organism infected with VA mycorrhizal bacteria is placed on the planting soil, turf seed or seed turf is sowed on the soil and the turf is cultured after filling the gap with a joint soil to obtain the objective turf for transplantation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing turf turf for transplantation.

In this specification, "%" means "% by weight".

[0003]

[Prior art and its problems] As a lawn construction method,
There are a method by sowing seeds and a method by planting mat-like lawn, that is, turf turf.

Among these, as a method for constructing a lawn in a golf course, a garden, a city park, an exterior of a high-rise house, an exterior of a business building, a green space of a factory, etc., a curing period until it becomes usable after the construction is completed. Due to their relatively short length, more turf turf planting methods are used.

However, the current method of planting grass turf has the following problems.

(1) The planting period is shorter than the method of sowing seeds, but it still requires a curing period of several months and the use of the planted land is prohibited during that period, which makes it inconvenient. The indication that it is present is unsightly from the landscape, and during the curing period, it is necessary to frequently sprinkle water after rooting until rooting, and it is necessary to frequently apply dilute fertilizer even after rooting, so management of the land is complicated. Because there is something
It is eagerly desired to further shorten the curing period after construction.

(2) Although it depends on the variety, there is a restriction on the time of creation, such that the time of creation is limited to spring, rainy season and autumn, and it is difficult to create early spring in the north and highlands of the Kanto region.

(3) The lawn during curing is inadequately functioning as a plant such as rooting or insufficient root elongation, and is easily affected by diseases. For this reason, it is indispensable to spray pesticides as a preventive and symptomatic treatment for diseases, and pesticide contamination occurs in neighboring waters.

(4) The lawn can absorb nutrients from near the ground surface by frequent watering and fertilization, so that the extension of the root of the lawn, especially the extension of the root in the vertical direction is insufficient, and the lawn is vulnerable to dry weather especially in summer. Becomes

The present invention strengthens the lawn's activities as a plant, shortens the lawn curing period, extends the constructable period, and easily produces lawn turf with little need for pesticides, fertilizers, etc. The purpose is to provide a method of doing.

[0011]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventor has found that the use of seed turf infected with VA mycorrhizal fungi shortens the curing period. It was found that a turf turf having great disease resistance and drought resistance can be manufactured.

That is, according to the present invention, planting soil having a thickness of 5 to 50 mm is arranged on the ground or an artificial cultivation floor, and a VA mycorrhizal fungal infection substance is arranged on the planting soil to prepare grass seeds or seed turf. It is intended to provide a method for producing a turf turf for transplantation, which comprises sowing, and then arranging and cultivating the soil.

In the present invention, the planting soil is arranged in a thickness of 5 to 50 mm on the ground or the artificial cultivation floor, the VA mycorrhizal fungal infection original substance is arranged on the planting soil, and the turf turf is installed. It is intended to provide a method for producing a turf turf for transplantation, which comprises arranging and cultivating a soil.

In the present invention, the grass turf used as an infection target of VA mycorrhizal fungus is usually washed with water to remove soil.

The "ground or artificial cultivation floor" on which the lawn is planted in the present invention is preferably flat, and may be horizontal or inclined.

The planting soil used in the present invention includes:
For example, Akatama soil, turf soil, Kanuma soil, Kuroboku soil or general soil can be used. This planted soil has a pore diameter of 0.5 to 500 μm and a pore volume of 0.05.
˜1.5 cc / g hydrophilically treated carbon material added up to 30% of the dry weight of the planting soil and / or up to 20% up to 20% of the dry weight of the planting soil. The apparent specific gravity of the planted soil when dried is preferably 0.05 to 0.8. Examples of the carbon material satisfying this condition include activated carbon, chaffed charcoal, charcoal, coke, and calcined coal. Further, the hydrophilic treatment of the carbon material means that the carbon material is dispersed in water and the surface and pores of the carbon material are soaked with water.

The diameter of the pores of the carbon material is 0.5 to 50.
When it is 0 μm and the volume of pores is 0.05 to 1.5 cc / g, the infection of the roots of VA mycorrhizal fungi is promoted, which promotes the growth of turf roots, which is preferable. The maximum amount of carbon material added is 3 with respect to the dry weight of planted soil.
Up to 0% is preferable in order to maintain the pH and water content of the soil at appropriate values for the growth of grass, improve air permeability, and promote growth. The addition amount of the carbon material is preferably 1
~ 20% is good.

Examples of the sparingly soluble phosphate contained in the planting soil include calcium phosphate, iron phosphate, sodium phosphate and apatite.

The amount of the sparingly soluble phosphate added to the planting soil is 20% at the maximum with respect to the dry weight of the planting soil.
It is preferable for gradually supplying phosphoric acid to the turf through the mycelium of the mycorrhizal fungus. The amount of the sparingly soluble phosphate added to the planted soil is preferably 1 to 10%.

The thickness of the planted soil is 5 to 50 mm. If the thickness of the planting soil is less than 5 mm, the planting of the seed grass becomes poor, and even if the thickness of the planting soil exceeds 50 mm, the growth of the seed grass is not promoted, which is uneconomical.

A water absorbent resin is preferably added to the planting soil of the present invention. Water-absorbent resin is its own weight 10-1
It is a resin that absorbs about 000 times as much water and is also called a water retention agent. Various resins such as starch-based, cellulose-based, and synthetic polymer-based resins are commercially available in Japan (road and nature,
12 , 3, 36-40 (1985)). The amount of the water absorbent resin added is 0.03 to 2. with respect to the dry weight of the planted soil.
It is about 5%, preferably about 0.1 to 0.7%.

In the present invention, the VA mycorrhizal fungus that infects seed turf is a vesicular arbuscular (Vesicular Ar).
buscular; VA) refers to fungi identified as mycorrhizal fungi.

In the present invention, the VA mycorrhizal fungal infection source means any infectious agent or composition capable of inducing VA mycorrhizal fungal infection to the roots of plants. The VA mycorrhizal infection source includes, but is not limited to, VA mycorrhizal spores, VA mycorrhizal mycelia, VA mycorrhizal mycelial chips, VA mycorrhizal mycelia infected tissues, and the like.

When the VA mycorrhizal infection source is spores, the number of VA mycorrhizal spores placed in the planting soil is 10 cm.
^It is 1 to 10000 pieces, preferably 10 to 100 pieces per ² . If the number of VA mycorrhizal spores is less than 1 per 10 cm ² , the infection of grass roots will be insufficient and V
The number of mycorrhizal spores is 10,000 per 10 cm ^2.
Infection of turf roots with VA mycorrhizal fungi is not promoted even if the number is exceeded, which is uneconomical. When the VA mycorrhizal infection source is other than spores, the ability to infect the roots of the plant is selected to be the same as when spores are used as the infection source.

The VA mycorrhizal fungi used in the present invention include:
Jai gas Paula (Gigaspora) genus Sukuterisupora (Scutellispora) genus Guromasu (Glomus) genus, account losses Paula (Acaulospora) genus Sukureroshisuchisu (S c
lerocystis) genus or en Toro Foz Paula (Entroph o
spora ) genus, preferably Jaigaspora, Scuterispora and Gromas. More specifically, Gig aspora margarita , Gigaspora albida , Scutellispora gregaria , Glomus fas ciculatum , and Glomus etnicum. Glomus etu nicutum), Guromasu-Mosse (Glomusmosseae), Guromasu-Kuraramu (Glomus clar
um), Guromasu Intra Radi box (Glomus intra r
adix ) etc. are illustrated. These fungi can be used alone or in combination of two or more, and the type of VA mycorrhizal fungus can be appropriately selected and used according to the type of target turf.

The types of turf used in the present invention include, for example, Korushishiba, Noshiba, Bentoshiba, Chushiba,
Mayer, Kalashiva, Tiff Green, Tiff Fine and so on.

The seed or seed turf to be sown in the present invention can be appropriately selected depending on the kind of turf. For example, in the case of bentgrass or Noshiba, seeds are preferable, and in the case of Korushishiba, seed turf is preferable.

Examples of the soil used in the present invention include Akadama soil, lawn soil, Kanuma soil, Kuroboku soil, and general soil.

The production method of the present invention is preferably performed in a room where the cultivation environment is controlled in order to surely infect VA mycorrhizal fungi and promote the growth of seed turf. The room in which the cultivation environment is controlled means, for example, a greenhouse, a room having an air cleaning device as an accessory, or a room in an environment equivalent to these.

The cultivated floor, planting soil, VA mycorrhizal fungal infection source, seeds, seed turf, turf turf and the like used in the present invention are preferably sterilized. Incidentally, in the sterilization treatment of the VA mycorrhizal fungal infection source, seeds, seed turf and turf turf, it is needless to say that there is a method which has little or no effect on the VA mycorrhizal fungi, seeds, seed turf and turf turf. Adopted. Examples of such methods include a method using chloramine T, streptomycin, etc. for the VA mycorrhizal fungal infection source, and a method using sodium hypochlorite, porridge powder, benomyl agent etc. for seed turf. If sterilization is performed in advance in this way, infection with VA mycorrhizal fungi will be carried out more smoothly.

In the method of the present invention, the period until the formation of the grass turf infected with VA mycorrhizal fungus after the placement of the soil varies depending on the grass species or the cultivation conditions. Is about 5 to 6 months, and about 2 months when turf turf not infected with VA mycorrhizal fungus is used.

[0032]

According to the method of the present invention, the following excellent effects can be obtained.

(1) When seeds or seed turf is used as a material for producing turf turf, VA is used at the initial stage of turf growth.
Since the mycorrhizal fungus surely infects the turf, the period for producing the turf turf can be shortened, and the turf turf highly resistant to the pathogen can be obtained. Further, when turf turf is used as a material for producing turf turf, there is an advantage that a turf turf having high resistance to pathogenic bacteria infected with VA mycorrhizal fungus can be obtained in a shorter period of time.

(2) When the planting soil containing the above-mentioned carbon material in the above-mentioned ratio is used, the infection of the roots of VA mycorrhizal fungi is promoted, thereby shortening the production period of turf turf. You can

When the above-mentioned sparingly soluble phosphate is added in the above proportion, the sparingly soluble phosphate is gradually dissolved and phosphoric acid is supplied to the grass, so that the manufacturing period of the grass turf can be shortened.

Furthermore, when the above carbon material and the sparingly soluble phosphate are added in the above proportions, respectively, the synergistic effect of the two can further shorten the production period of the turf turf.

(3) Even when working in a room where the cultivation environment is controlled, the period for manufacturing the turf turf can be shortened as compared with the case where the environment is not controlled.

(4) When the water-absorbent resin is added to the planted soil, sufficient water content is retained around the grass roots, and the grass turf becomes stronger due to the sunshine in summer.

(5) The turf turf obtained by the method of the present invention is easy to ingest water and nutrients due to infection with VA mycorrhizal fungi, and has high resistance to environmental changes such as temperature and dryness and diseases. Therefore, the development period can be done from early spring to late autumn on flat land. Further, the curing period after the lawn is constructed is shortened, the number of times of watering is reduced, and it is almost unnecessary to spray fertilizer or pesticide. In addition, as a result of refraining from watering and fertilizing, the roots also grow vertically in the ground, which also contributes to the dryness of turf.

[0040]

EXAMPLES The features of the present invention will be described in more detail below with reference to examples and comparative examples.

The artificial cultivation floor, planting soil, VA mycorrhizal spores, seeds, seed turf, turf turf, etc. used in the following Examples and Comparative Examples were all sterilized. In addition, each work was performed in the greenhouse.

* Manufacture of turf tough

[0043]

[Example 1] On the artificial cultivation floor, red pearl soil was placed at a thickness of 50 mm, and an aqueous suspension of spores of Jaigaspora margarita was sprayed on the red pearl soil at a rate of about 100 per 10 cm ² . Next, seeds of Korushishiba were sown, and grass soil was placed on the seeds and cultivated for 5 months to produce a lawn turf for transplantation.

[0044]

Examples 2 to 3 Example 1 was repeated, except that the number of VA mycorrhizal spores and carbon material and / or sparingly soluble phosphate and / or water absorbent resin were added to Akatama soil at the ratios shown in Table 1 below. A grass turf for transplant was manufactured in the same manner as in.

[0045]

Examples 4 to 7 Seed turf was used instead of seeds as an infection target of VA mycorrhizal fungi, and the VA mycorrhizal spore number and carbon material and / or sparingly soluble phosphate and / or water absorbent resin were used in the following table. A grass turf for transplantation was produced in the same manner as in Example 1 except that the ratio was added in the ratio shown in 1.

[0046]

Examples 8 to 10 Gromus fasiculatum was used as the VA mycorrhizal fungus, and turf turf was used as the target of infection with the VA mycorrhizal fungus instead of seeds, and the VA mycorrhizal spore count and carbon material and / or sparingly soluble phosphate were used. Example 1 except that salt and / or water absorbent resin was added in the proportions shown in Table 1 below.
A grass turf for transplant was manufactured in the same manner as in.

[0047]

[Comparative Examples 1 to 3] No VA mycorrhizal fungus was placed on Akatama soil (Comparative Example 1), and no VA mycorrhizal fungus was placed and seed grass (Comparative Example 2) or lawn turf A VA mycorrhizal non-infected grass turf was produced in the same manner as in Example 1 except that (Comparative Example 3) was used.

Table 1 shows the amounts of each element in Examples 1 to 10 and Comparative Examples 1 to 3.

[0049]

[Table 1]

In Table 1, * PAA represents a commercially available polyacrylamide synthetic polymer (Broadleaf P4 (registered trademark) manufactured by Broadleaf Co.).

* PVA represents a commercially available polyvinyl alcohol-based synthetic polymer (Igetagel P (registered trademark) manufactured by Sumitomo Chemical Co., Ltd.).

* G. M. Indicates the Jaigaspora Margarita.

* G. F. Indicates Gromus Fasciculatum.

[0054]

[Evaluation]

* Measurement period of turf turf production period The production periods of the turf turf of Examples 1 to 7 and Comparative Examples 1 and 2 are shown in Table 2 below. The production period was the period from the time when the seeds or seed turf was sowed until the color and grass vigor were almost the same as those of conventional turf turf.

[0055]

[Table 2]

From the results shown in Table 2, it was revealed that when the method of the present invention is applied to seeds or seed turf, the production period of the turf tough can be significantly shortened as compared with the conventional method.

* Measurement of curing period of turf tough The turf turf obtained in the above Examples 1 to 10 and Comparative Examples 1 to 3 was planted in a land and the curing period of each was measured. The curing period was a period in which the color and grass vigor were almost the same as those of the surrounding grass turf that was conventionally planted. Further, regarding the grass turf of Examples 1 to 10, the grass vigor at the time point after 30 days was further compared, and the ranking was shown in order from the good one. The results are shown in Table 3 below.

[0058]

[Table 3]

From the results shown in Table 3, it was revealed that the turf curing period was considerably shortened when the turf of the present invention was used. Also, when comparing the turf turf of Examples 1 to 10 of the present invention with each other, the use of a carbon material, a sparingly soluble phosphate or a water-absorbent resin in curing has a good effect on improving grass vigor. It became clear.

[0060]

Claims (5)

[Claims] 1. A planting soil having a thickness of 5 to 50 mm is arranged on the ground or an artificial cultivation floor, and VA is applied to the planting soil.
Place the mycorrhizal fungus infection body, sow seeds or seed grass,
Then, a method for producing a grass turf for transplantation, which comprises arranging and cultivating a soil. 2. A planting soil having a thickness of 5 to 50 mm is arranged on the ground or an artificial cultivation floor, and VA is applied to the planting soil.
A method for producing a turf turf for transplantation, which comprises arranging a mycorrhizal fungal infection source, arranging a turf turf, and then arranging and cultivating a soil. 3. A planting soil having a pore diameter of 0.5.
˜500 μm and pore volume of 0.05˜1.5 cc /
g of hydrophilically treated carbon material up to 30% of the dry weight of the planting soil and / or up to 20% of the dry weight of the planting soil of sparingly soluble phosphate and drying of the planting soil Apparent specific gravity of 0.0
It is 5 to 0.8, The manufacturing method of the grass turf for transplantation of Claim 1 or 2 characterized by the above-mentioned. 4. The method for producing a lawn turf for transplantation according to claim 1, wherein a water absorbent resin is added to the planting soil. 5. The method for producing a lawn turf for transplantation according to claim 1, wherein the method is carried out in a room where the cultivation environment is controlled.