JPH11152751A - Greening method on slope face - Google Patents

Abstract

PROBLEM TO BE SOLVED: To favorably carry out greening on a slope face by mixing effective microorganisms which fix sulfur contents exising in soil and prevent the sulfur contents from combining with hydrogen and forming hydrogen sulfide and prevent the soil from being denatured into an acidic soil, with the soil on the slope face. SOLUTION: Effective microorganisms which fix sulfur contents existing in soil and prevent the sulfur from combining with hydrogen and forming hydrogen sulfide and prevent the soil from being denatured into an acidic soil, is mixed with the soil on a slope face to plant trees on the slope. Photosynthesis bacteria, as a main component, decomposing bacteria of sulfur, Azotobacter, lactic acid bacteria, yeast funges, Actinomycete, Z bacteria, VS bacteria, bulb bacteria, VA root bacteria, etc., are mixed together as the effective microbes. These are individually extracted and cutured and a group of microorganisms combined in a bed solution in which respective bacteria can live together, so as to be adaptable for soil conditions and growth of vegetation are used for greening. These effective microorganisms are added to bark of wood or the like and treated in a low temperature fermentation process. And a soil conditioner in which the ratio of carbon to nitrogen is controled to be 25 or more or less and the cation-exchangeable capacity is controled to be 70 or more is scattered on the slope face together with seeds, fertilizer, water, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for greening a slope.

[0002]

2. Description of the Related Art
For slopes that require greening, a mixture of water with seeds, fertilizers, growth base materials (fibers), adhesives, etc.
Seed spraying method of greening the slope by spraying with a sprayer, mixing seeds, fertilizer, soil, water, etc., spraying it with compressed air to the slope with a predetermined thickness using a pump, etc., and then asphalt emulsion Spraying and cultivation of erosion inhibitors, such as spraying, and cultivating the slope by greening the seeds, laying a wire mesh on soilless land such as bedrock that is difficult to green, and mortar spraying machine (gun machine)
The seeds are mixed to a predetermined thickness, and a growth base material mainly composed of an organic material (sometimes using a sand-based material mainly composed of river sand or sandy soil) is sprayed to green the slope. There is a method for spraying greenery on a thick substrate.

However, in any of the above-mentioned revegetation methods, the sulfur contained in the soil reacts with water to form hydrogen sulfide, which changes the soil into a strongly acidic one, thereby inhibiting plant growth. The problem cannot be avoided.

[0004] The present invention has been made to solve the above-mentioned problems, and provides a method of greening a slope, which can satisfactorily green the slope.

[0005]

The gist of the present invention will be described.

[0006] It is necessary to fix the sulfur existing in the soil on the slope soil, and to mix effective microorganisms that prevent the sulfur from being combined with hydrogen to form hydrogen sulfide, thereby preventing the soil from being acidified. The present invention relates to a method of greening a slope.

[0007] The present invention relates to the method for greening a slope according to claim 1, wherein a microorganism group mainly composed of photosynthetic bacteria is used as the effective microorganism group.

Further, the effective microorganisms according to claim 2 necessary for the inhabitation of plants are added to the bark or the like of the crushed timber and subjected to low-temperature fermentation treatment to obtain a carbon to nitrogen ratio of about 25 and a cation exchange capacity of 70 or more. A soil remediation material, which is managed by the method described above, together with seeds, fertilizer, water, etc., on a slope requiring revegetation.

[0009]

According to the present invention, as described above, the effective soil microorganisms that fix the sulfur content existing in the soil and prevent the bond with hydrogen are mixed in the soil on the slope. The sulfur content reacts with water to form hydrogen sulfide, which can prevent the soil from being altered to acidic properties, and thus can eliminate the situation that inhibits the growth of plants.

As described above, according to the present invention, there is provided a method for greening a slope which can satisfactorily green the slope.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for greening a slope according to one embodiment of the present invention will be described below.

The effective microorganisms referred to in the present invention are mainly photosynthetic bacteria, sulfur-decomposing bacteria, Azotobacter, lactic acid bacteria,
Yeast, actinomycete, Z bacterium, VS bacterium, bulb fungus, VA root fungus, etc. are mixed, and photosynthetic bacteria are isolated and cultivated individually. It is formulated in a bed solution in which individual fungi can coexist so as to be suitable for germination and growth of, and works effectively on plants.

These fungi do not work well on plants even when used alone. These fungi create conditions necessary for their own habitat, and thus create conditions that can coexist with other fungi.

[0014] For example, photosynthetic bacteria that are aerobic grow on the basis of a jelly-like viscous liquid secreted by Azotobacter inhabiting the soil, that is, fatty acids. The fatty acids secreted by Azotobacter contain oxygen and nitrogen in the air. Azotobacter, on the other hand, grows on glucose, which is secreted by photosynthetic bacteria.

Therefore, photosynthetic bacteria can inhabit even in soil where oxygen is deemed to be free, because they take up the above fatty acids and consume the oxygen in the fatty acids.

The effective microorganism group in the present embodiment is mainly a photosynthetic bacterium. The photosynthetic bacterium has a function of bringing sulfur into fatty acids secreted by Azotobacter, and depends on the condition of the soil on the slope or in weather conditions. When used by mixing other bacteria as appropriate, the sulfur content in soil is taken up (fixed) in fatty acids secreted by Azotobacter, so that the sulfur content reacts with water to form hydrogen sulfide. The situation can be prevented, and the soil can be prevented from changing to a strong acidity. Therefore, a situation in which the growth of the plant is inhibited can be solved.

If lactic acid bacteria are also mixed in the effective microorganism group, the effect of suppressing disease-causing bacteria can be improved.
When the sulfur content is decomposed by the sulfur-decomposing bacteria, the production of hydrogen sulfide can be further prevented.

In this embodiment, specifically, the bark of a domestic timber is finely pulverized, a large amount of the above-mentioned effective microorganisms necessary for plant inhabitation are added, and low temperature fermentation treatment is performed for 3 months or more to mature. This is a method of spraying a soil improvement material controlled at a carbon-to-nitrogen ratio of about 25 and a cation exchange capacity of 70 or more, together with seeds, fertilizer, water, and the like, onto a slope requiring greening, thereby greening the slope. .

Here, the "carbon-to-nitrogen ratio" refers to the ripeness value of an organic substance. Organic carbon / nitrogen indicates the carbon ratio, and the lower this value is, the more mature the organic substance is.
If the value is larger than 35, it is not very ripe. 35
Lower and ripe.

The "cation exchange capacity" is a value indicating the ability to hold (store) an organic fertilizer. Generally, 100 g of an organic base material must have the ability to hold 70 meq or more of fertilizer.

The method of greening the slope will be described more specifically below.

As a specific example, in the seed spraying greening method, for example, the effective microorganism group is 0 per 100 m ² of a slope having a soil type of clay, a clayey soil, or a permalite and having a pH of ^{2 to} 8 values. Seeds, fertilizer, water, etc. are added to 0.1 to 0.3 liters, about 3.6 kg of soil stabilizing material, about 10 kg of seed curing material and the like, and these are sprayed on a slope requiring greening to green the slope.

As two specific examples, in the spraying greening method for the base soil material, for example, when the soil condition is a high-hardness clayey soil,
The base thickness is 3.0 per 100 m ^{2 of} slope of 2.0-5.4 value
cm, effective microorganism group 0.3 liter, base material 3.9 m ³ , soil stabilizer 10 kg, seed curing material 2
Seed, fertilizer, water, etc. are added to about 0 kg, and these are sprayed on a slope requiring greening to green the slope.

As three specific examples, in the thick base material spraying greening method, for example, when the soil condition is soft or hard rock system,
Assuming that the thickness of the thick base material is 5.0 cm per 100 m ² of the slope of pH 3.5-6.5, the effective microorganism group is about 0.3 liter, the base material is about 1000 liter, the bonding agent is about 26 kg, and the fertilizer is about 39 kg. And adding a seed to the mixture of the above, spraying these with a sprayer, and spraying the mixture first, then diluting it about 100 to 300 times with good quality water, and then spraying the seed on the slope Green the slope.

This embodiment is constructed as described above.
The effective microorganisms deeply improve the soil, the roots of the plant can extend deep into the soil, and the growth of the plant can be very good.

Further, the effective microorganism group promotes the germination and growth of the seeds of the plant, and the germination rate can be made close to 100%. Therefore, it is better to reduce the seeding amount by 20 to 30% than before so as not to cause a situation in which the plants are overgrown. As a result, the amount of seeds used can be saved.

Further, since the effective microorganism group promotes the growth of the plant, the vigor of the germinated plant is active, and the plant can hardly die and die.

Further, since the effective microorganism group is used, the obstacle caused by the concentration of the advanced chemical fertilizer can be slowed, and the fast-acting fertilizer can be changed to a slow-acting fertilizer to some extent.
Water retention can be improved, and slope revegetation can be performed even during the drought season in the summer months of July and August.

Incidentally, according to the effective microorganism group according to the present embodiment,
It has been confirmed by experiments that strong acid soil and strong alkaline soil can be modified to neutral soil.

Claims (3)

[Claims] Claims: 1. Sulfur present in a slope is fixed in the soil on the slope, and the sulfur is combined with hydrogen to form hydrogen sulfide.
A revegetation method for a slope, comprising mixing effective microorganisms that prevent soil from being acidified. 2. The method according to claim 1, wherein a microorganism group mainly composed of photosynthetic bacteria is used as the effective microorganism group. 3. An effective microorganism group according to claim 2, which is necessary for the inhabitation of the plant, is added to bark or the like of a crushed timber and subjected to low-temperature fermentation treatment, and a carbon-to-nitrogen ratio of about 25 and a cation exchange capacity of 70 or more. A method for revegetation of a slope, characterized in that the soil improvement material managed in step (1) is provided together with seeds, fertilizer, water and the like on a slope that requires revegetation.