KR101110605B1 - Landscape Architecture soil and manufacturing method of Landscape Architecture soil - Google Patents

Abstract

The present invention relates to a functional landscape soil and a method for producing the same, by selecting one or more porous materials having fine porosity, including natural inorganic foam particles, vermiculite, pearlite, pitmos, volcanic sand, zeolite, chitosan, gelatin, PVA (Polyvinyl Alcohol), a functional substance coated with a decomposing substance that decomposes the above-mentioned nutrients on the surface after immersion in a gel aqueous solution formed by selecting one or more of the nutrients available as nutrients of plants containing starch. It is intended to promote the growth of plants by preparing landscaping soil and using it as a rooftop landscaping soil and land improving agent.

Description

Functional landscape soil and its manufacturing method {Landscape Architecture soil and manufacturing method of Landscape Architecture soil}

The present invention relates to a functional landscape soil and a method for producing the same.

In general, farmers have used a large amount of chemical fertilizers and pesticides to increase the yield, but due to this, the physicochemical properties of soils such as salt accumulation, pesticide residue, soil acidification, and soil breakdown are extremely deteriorated. As described above, pesticides or fertilizers are ingested by the human body through crops, which threatens health.

Accordingly, in recent years, organic cultivation methods that do not use pesticides or chemical fertilizers have been in the spotlight in order to improve the problems of environmental pollution, soil deterioration, and health deterioration due to the use of chemical fertilizers or pesticides.

As an example of the organic cultivation method has been proposed methods for growing crops using microorganisms extracted from the soil. In general, 1 g of fertile soil is inhabited by thousands to hundreds of millions of microorganisms, and among these microorganisms, effective growth microorganisms with excellent characteristics are plant growth promoting root microorganisms (PGPR). Promoting Rhizobacteria) is extracted and cultured separately and used as a growth accelerator or fertilizer for crops.

The roots microorganism is a plant that emits secretions (hereinafter referred to as root secretions) through the roots, and the soil around the roots affected by the root secretions is called the root zone, and the roots microorganisms are located there where the root secretions of the plants are affected. It refers to the microorganisms that live and interact with the plants in the range of.

These microspheres live in interaction with the plants, and the plant interacts with the microspheres first to provide a place for the microsphere microbes to live. Root secretions also provide the nutrients that microorganisms need to live, and the root-right microorganisms grow around the roots and serve as a plant's defense against the growth of other microorganisms, which are potentially harmful to the plant. .

As such, the microorganisms selected as the rhizosphere microorganisms can generate pathogens such as oxins and gibberellins and inhibit pathogens by inhibiting the growth of pathogenic microorganisms causing diseases in various crops or by secreting antibiotics. Antagonistic microorganisms that have the ability to kill are commonly used. In addition, it dissolves microorganisms or insoluble phosphoric acid that rapidly decomposes organic substances such as fibrin and lignin, and decomposes various enzymes to increase fertilization efficiency of phosphate fertilizer or to fix nitrogen in air while coexisting in the root of soybean and peanut. Microorganisms are used, and microorganisms that feed on harmful organisms such as nematodes are the main targets.

Such effective microorganisms generally secrete various enzymes, bioactive substances, amino acids, nucleic acids, etc. necessary for the growth of plants and are absorbed directly or indirectly into the roots of plants, contributing to high yield, and at the same time, the taste, aroma, color, and shelf life of the harvest. It is known to greatly contribute to quality improvement and nutrient content such as increase.

As a technique for growing a crop using soil microorganisms, there is a novel Bacillus genus strain, patent application No. 1997-25148, and a method for promoting plant growth using the same. Patent application No. 2004-36551 contains 2-3% of chitosan. Although a technique of mixing a horticultural soil and a microbial agent (Bacillus, etc.) is disclosed, the above-mentioned patent application No. 1997-25148 uses a method of immersing the seed of the crop in the above-mentioned strain before sowing, but such a method Its use is limited only when sowing seeds directly, and there is a problem in that it is not applicable when a seedling is bought and used. In addition, Patent Application No. 2004-36551 uses chitosan of a polymer, so there is a problem that plants cannot absorb them even when used in plants.

In addition, as a technique for using the chitosan or myosphere microorganisms with a porous material, Korean Patent Application No. 1996-033250 describes a soil modifier adsorbing actinomycetes, mycorrhizal bacteria and photosynthetic bacteria to a porous material, and a manufacturing method thereof. Patent application No. 1998-31664 discloses that sludge, ocher, clay, waste limestone, zeolite, etc. are mixed and fired at 1000 ° C. to dilute and spray the chitosan solution. Patent application No. 1997-59820 discloses lightweight foam concrete. Starch or the like as an electrodeposition agent selectively coats or adsorbs organic-containing substances and microorganisms, and is said to have an effect on pH adjustment and microbial growth.

However, in the patent application No. 1996-033250 described above, the culture solution containing molasses and urea is added to a porous material such as vermiculite and zeolite by 0.1% by weight, followed by adsorbing and culturing the culture solution containing bacteria. And the urea-containing culture medium and the culture medium including bacteria are described as simply admixing and adsorbing the culture solution in the process of adsorbing the porous material with water solubility. As it is not treated to the porous material, because of this the mixing ratio of the bacteria attached to the porous material is out of a certain range, as mentioned in the prior art, there is a problem that can not be effective land improvement due to the dominant species generation.

In addition, when the above-mentioned porous material only serves as a pure microbial tin, the microorganisms have improved soil ability and nature when the physicochemical properties of the microorganisms are not suitable for the soil at the initial stage when the microorganisms used are effective in the soil. There was a problem that it is difficult to expect the purification ability effect.

In addition, the porous material adsorbed to the above-mentioned bacteria require a culture time of about 3 days so that the bacteria are sufficiently attached to the porous material, and a separate drying process is required to market the bacteria, so that the production takes a long time. .

In addition, the prior art patent application No. 1998-31664 has a low economical efficiency when fired at 1000 ℃ and there is no nutritional component, so even if the chitosan solution is sprayed, the general molecular weight of chitin or chitosan is hundreds of thousands to millions, and the purified chitosan also has a molecular weight of 10 It is only 300,000, which has little effect on crop growth without decomposing chitonase.

Prior art 1997-59820 does not mention the pH of lightweight aerated concrete particles, and the pH of the particles will be about 13-14 in terms of the properties of the general foamed concrete or at the time of patent application. The weak effect of alkali) cannot be effectively multiplied, so the expected effect of soil microorganisms is unlikely.

On the other hand, the emphasis has been placed on preserving urban green areas by actively implementing urban greening projects for eco-friendly ecological cities, especially in large cities, but it is difficult to secure land that can be greened in large cities. .

Especially in urban areas where there is an absolute shortage of green space, almost all the land contains buildings, so it is almost impossible to create green space without dismantling the building. In addition, urban land is in fact impossible to green the city, even if there is available land, because of the high cost of land, enormous costs are required to create green space.

As a result, a rooftop greening plan is proposed as an alternative to greening the top of the building to secure green space in the downtown area.

In addition to securing green spaces, the rooftop greening can achieve environmental effects such as environmental pollution prevention, urban ecosystem restoration, climate control, and noise reduction.In Tokyo, Japan, the highest temperature is recorded when 83% of the rooftop area is recorded. It is reported that this decreases by about 0.2 to 1.4 ° C.

Landscaping soils used in the roof garden are generally mixed with general soil and artificial soil such as vermiculite, pearlite, peat moss, and volcanic sand, which are light and highly moisturizing, to reduce the load on buildings. Has no beneficial function in plant growth and merely reduces the load on the soil.

According to the “Required Soil Conditions According to Plant Size,” published in the International Seminar on Korean Geotechnical Records Association (Feb. 2008), which is shown in Table 1, appropriate loads according to soil thickness are required.

In particular, when the soil with too low specific gravity is used on the roof of a high-rise building, the negative pressure of the high-rise part is generated by the wind load caused by the wind flow around the high-rise building, and thus, the lifting of the plant occurs. Its use is so limited that it should have a moderate load even with low specific gravity.

grass Low grass Middle grass Bottom tree Middle tree Old tree Planting height 5 ~ 10cm 10-50 cm 50-100 cm 50-100 cm 100-200 cm 200-400 cm Soil thickness 10 cm 15 cm 20 cm 25 cm 30 cm 40 cm Drainage  thickness 3 cm or more 3 cm or more 5 cm or more 5 cm or more 5 cm or more 5 cm or more Soil load Natural soil 160kg / m ² 240kg / m ² 320kg / m ² 400kg / m ² 480 kg / m ² 640 kg / m ²

In addition, the share of rooftops that cannot be distributed rooftop recording is high in Korea. This is because the weight of the soil for planting and planting reaches about 500kg / m ² even when it is based on mezzanine. Examples in Seoul, look at the information presented in the blue dosiguk landscaping, a rooftop area of Seoul's urban areas (60% of the Seoul area) from the very large to 166km ² of approximately 46%, but the area of entry-level green roof is possible, of which 1 Reported as 55 km ² , less than / 3.

On the other hand, rooftop greening technology, which is spreading in developed countries such as Germany and Japan, has a fundamental purpose to prevent plant roots from penetrating into the building's waterproofing layer or damaging the building. There is no research on landscaping soils with appropriate loadings that provide the necessary nutritional components.

An object of the present invention is to ensure that the porous material having micropores simultaneously contains the nutrients necessary for the growth of the plant and the decomposition component for decomposing the above nutrients into a molecular weight suitable for the plant to absorb, wherein the nutrients are decomposed. The purpose is to provide a functional landscaping soil to promote the growth of plants and to simplify the manufacturing process by acting as an adhesive to adhere the components to the porous material.

In the functional landscape soil, when the porous material is lightweight particles, it is mixed with general soil to improve the soil porosity while reducing the specific gravity of the soil, which is the main cause of load burden on buildings during rooftop greening. By increasing the root development of plants used for soil initiation and roof greening, the range of planting in roofing landscaping soil under the same load condition is diversified.

In addition, when the porous material is not lightweight in the functional landscaping soil, it can be utilized as a land improver in general farmland to promote plant growth.

Features of the present invention for achieving the above object, by selecting one or more porous materials having fine porosity, including natural inorganic foam particles (main component SiO ₂ ), vermiculite, pearlite, pitmos, volcanic sand, zeolite The nutrient substance described above is immersed in a gel aqueous solution formed by selecting one or more of the nutrient substances available as nutrients of plants including gelatin, polyvinyl alcohol (PVA) and starch. It is to provide a functional landscaping soil coated with a decomposition material that decomposes.

In addition, to provide a functional landscaping soil further coating organic fertilizer or compost on the surface of the functional landscaping.

The functional landscaping soil prepared by the above method is combined with general landscaping soil to be used as a rooftop landscaping soil and land improver.

Functional landscaping soil according to the present invention configured as described above decomposes the nutrients necessary for plant growth to have a molecular weight of the size that can be absorbed by the decomposition material attached to the surface of the landscaping soil, so that absorption of nutrients It is optimized to have an effect of improving the plant growth rate, and the effect of improving the water content and soil porosity of the soil by the pores of landscaping soil.

In addition, when the lightweight material is used for the porous material, the soil porosity is improved while reducing the specific gravity of the soil, which is the main cause of load on the building during roofing, and soil initiation and roofing greening by the root zone microorganisms contained in the lightweight particles. Enriching the root development of the plant material used in the roofing landscaping in the same load conditions can be obtained the effect of the variety of planting range.

In addition, it is expected that the area of rooftop greening will be increased to 220km ² , which is twice the area of rooftop greening in Seoul.

In addition, even if the porous material has a larger load than the general soil, there is an effect of improving land and promoting plant growth by increasing the nutrient content, moisture content, and soil porosity as described above.

1 is a cross-sectional photograph of the appearance and microporous structure of lightweight particles
Figure 2 is a cross-sectional photo of chitosan and degrading enzymes in the interior and surface of the microporous structure of the lightweight particles
3 is a view showing the structure of the functional landscape soil of the present invention and the operation process of the functional landscape soil and general soil
Figure 4 is a microphotograph fermented root wound microorganisms coated on the light particles
5 is a photograph of the root microorganism fermenting chitosan inside and the surface of the light particles
6 is a photograph of soil initiation progressed by the root zone microorganisms coated on the light particles
Figure 7 is a micrograph of soil initiation progressed by the myopic microorganisms coated on the light particles
Figure 8 is a microphotograph showing the moisture moisturizing phenomenon by the action of the myopic microorganisms coated on the light particles
9 is a view showing the structure of functional landscape soil further comprising organic fertilizer and compost components

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

In the embodiment of the present invention, chitosan is described as an example of a nutrient, and the decomposing substance uses chitonase capable of decomposing chitosan.

First, look at the manufacturing method of functional landscape soil coated with chitosan and chitonase.

<Selection of porous material>

First of all, 6 kinds of particle size of 0.25-1.0mm are selected among porous materials having various types of microporous structure, and the volume of light particles per unit weight (100g) is measured using 1L measuring cylinder. It was compared with the volume of and measured, and the results are shown in Table 2.

division Particle Composition Specific gravity (kg / dm ³ ) Test particle volume (100g) Example 1 Natural inorganic foam particles 0.1-0.4 280ml Example 2 Vermiculite 0.7-2.7 100 ml Example 3 Pearlite 0.1-0.54 260ml Example 4 Pete Moss 0.1-0.6 260ml Example 5 Volcanic sand 0.5-1.5 200 ml Example 6 Zeolite 0.5-1.2 200 ml Comparative Example 1 General landscaping 1.1-1.7  80 ml

The natural inorganic foam particles are pre-treated and crushed recycled glass, finely ground, mixed and molded, and then fired in a special kiln of 750 ℃ ~ 900 ℃ temperature, the main component is silica (SiO ₂ ) We used INNOTEX LWA of KOMIPO.

1 shows cross-sectional and surface photographs of zeolite particles, natural inorganic foamed particles, and pearlite particles among the porous particles.

Chitosan Solution Preparation

1% to 3% of acetic acid was added to chitosan, and 0.01% by weight, 0.05% by weight, 0.1% by weight, 0.5% by weight, 1.0% by weight, 2.0% by weight and 3.0% by weight, respectively, were added to water at 30 ° C. After stirring for 24 hours, a completely dissolved chitosan solution was prepared, and the aqueous solution was allowed to gel.

< Chitonase  Settings>

As an enzyme capable of decomposing or fermenting chitosan, lysopus oligopus was selected, and root-right microorganisms such as actinomycetes such as Streptomyces griseus or bacteria such as Bacillus sp.

<Production of Functional Landscape Soil>

In the chitosan aqueous solution prepared in the chitosan aqueous solution manufacturing process, impregnated with light weight particles of fine pores, if impregnated without stirring during the impregnation process, it is impregnated for about 6-24 hours at room temperature, and 1- at room temperature when impregnated with stirring. Immerse for 6 hours.

Then, as described above, the porous material impregnated in the chitosan aqueous solution is taken out of the chitosan aqueous solution and placed on a sieve so that water is naturally removed, followed by coating the decomposed chitonase. As described above, when the carrier powder is sprayed on the surface of the gel-like chitosan-impregnated porous material, the carrier powder is attached to the aqueous chitosan solution in the gel state, and the chitonase is attached to the porous material.

As described above, the porous material to which chitonase was attached was prepared by drying at room temperature for 24 hours, and the cross-sectional photograph of natural inorganic foamed particles and pearlite particles treated with chitosan and chitonase was shown in FIG. 2.

And it looks at below a mixed example of the functional landscape soil prepared as described above and the general landscape soil.

In the porous materials of Examples 1 to 6 in Table 1, impregnated chitosan in the natural inorganic foam particles having a diameter of 0.3 to 0.4 mm, and coated with chitonase to prepare functional landscape soil, and mixed evenly with the general landscape soil at a predetermined weight ratio. Next, the results of measuring the volume and average specific gravity of the mixed soil with a 1L measuring cylinder are shown in Table 3.

division Functional Landscape Soil (g) General Landscaping Soil (g) Soil volume Load (g) Average weight Example 8 0 100 80 ml 100 1.25 Example 9 100 700 760 ml 800 1.05 Example 10 100 500 600 ml 600 1.00 Example 11 100 400 530ml 500 0.94 Example 12 100 300 450ml 400 0.89 Example 13 100 200 380ml 300 0.79 Example 14 100 100 310 ml 200 0.65 Example 15 100 0 280ml 100 0.36

As the average specific gravity of the whole soil changes according to the mixing ratio of the functional landscaping soil and the general landscaping soil, when using lighter particles than the general landscaping, the soil thickness increases at the same load. You can expect a variety of effects.

Functional landscaping soil configured as described above uses a porous material having fine porosity, thereby improving the moisturization and soil porosity of the landscaping soil, and as the soil thickness increases as shown in Table 3 at the same load, planting that can be utilized during roofing greening The range of the effect can be expected to vary.

Since the functional landscape soil of the present invention in the above embodiment uses chitin or chitosan, harmful pathogenic fungi by promoting the secretion of chitosan β-1,3-glukinase, a chitosan degrading enzyme of plants, and maximizing eliminator effects. By destroying the cells and minimizing the proliferation of fungal cells, there are advantages to prevent pests, strengthen plant tissues, inhibit salts, promote growth and improve soil properties.

In the functional landscape soil thus formed, a chitin or chitosan layer (b) is formed in the pores and the surface of the porous material (a) having micropores, as shown in FIG. ) Is formed.

In addition, unlike the conventional chitosan liquid fertilizers, which are supplied to the soil by foliar fertilization or spraying, the functional landscaped soil thus constituted is mixed with the soil and uses chitonase to absorb plants with molecular weights of tens to millions. As the chitonase decomposes to the extent that the plant is absorbable as shown in (b) of FIG. 3 (b) and the mesophilic microorganism is fermented as shown in FIGS. As shown in FIG. 7, the soil mixed with functional landscape soil forms a grain structure, which has good breathability and moisturizing property, thereby continuously improving root development of crops and activating beneficial microorganisms in soil without affecting external climate change, thereby improving soil quality. And can increase intellect. It is shown in FIG. 8 regarding said moisturizing power.

And, as described above, due to the soil loading due to the mycelial growth of the microorganisms, due to the wind load generated by the wind around the high-rise building, which may occur in the rooftop greening of the high-rise building due to the weight reduction of the landscaping soil. It is possible to alleviate the lifting phenomenon of the plant.

In Example 8-15, the specific gravity of the porous material was examined as an example of less than the general landscaping. As such, when the specific gravity is less than the general landscaping, it was used as a rooftop landscaping soil, regardless of the specific gravity of the present invention. Landscaping soil can be mixed with general landscaping soil and used as soil improver.

On the other hand, in the above configuration, chitosan was used as a nutrient, but other biodegradable polymers may be used. Examples thereof include collagen, gelatin, PVA, and starch. Can be used.

For example, in the case of using the collagen or gelatin described above, collagen or gelatin is added to 3% of the total weight to form an aqueous solution with water as a solvent, and as the decomposition material, Bacillus subtilis B0021 is used. In the case of PVA, 10% by weight relative to the total weight of the aqueous solution is added, and as the decomposition material, isolates, identifications and characteristics of Penibacillus fungi (Paenibacillus sp.) And Microbacterium barkeri (PVA decomposition strains) Research, Choi, Kwang-Geun; Shin, Jong-Cheol; Jeon, Hyun-Hee; Kim, Sang-Yong; Lee, Jin-Won). When starch is used, 30% by weight of starch is added to form an aqueous solution, and the enzyme is classified as an amylase.

On the other hand, as described above, the surface of the porous material impregnated with nutrients in the pores may be further coated with organic fertilizers or compost components beneficial to plant growth and root development in addition to the decomposition of nutrients, in this case, Figure 9 As shown, a nutrient layer (b) containing chitosan is formed on the pores and surfaces of the porous material (a), and a decomposing substance layer (c) containing chitonase is formed outside the nutrient layer (b), The organic fertilizer or compost layer (d) is formed on the outside of the decomposer layer (c), and the method of forming the organic fertilizer or compost layer (d) is also simply a functional landscape in which the decomposing substances adhere to the gel-like nutrients. It is only necessary to apply powdery organic fertilizer or compost to the outer periphery of the discussion.

Claims (4)

A porous material selection process for selecting any one of porous materials having fine porosity including natural inorganic foam particles, vermiculite, pearlite, peat moss, volcanic sand and zeolite,
Immersing the porous material selected in the porous material selection process in the aqueous chitosan solution in a gel state, wherein the chitosan is impregnated into the pores of the porous material and coated on the surface;
Functional chitosan manufacturing method characterized in that the chitosan is penetrated into the pores and coated by coating a powdered chitonase to decompose the chitosan on the surface of the porous material coated on the surface. The method of claim 1, wherein the surface of the functional landscape soil is further coated with organic fertilizer or compost. Natural inorganic foam particles, vermiculite, pearlite, pitmos, volcanic sand, zeolite porous material having any one of the fine pores selected from,
Nutrients layer made of chitosan is impregnated into the porous interior of the porous material and coated on the surface,
Functional landscaping soil characterized in that it comprises a nutrient substance decomposition material layer consisting of chitonase to be coated on the outer periphery of the nutrient substance layer to decompose nutrients. 4. The functional landscaping soil according to claim 3, wherein an organic fertilizer or a compost component layer is further formed on the outer circumference of the decomposition material layer.

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