KR100888893B1 - Mat-type bed for raising seeding and method of fabricating the same - Google Patents

Abstract

Mat-typed bed soil for seeding and a manufacturing method thereof are provided to reduce the amount of pulp used and increase the amount of ingredient of expanded rice hulls. A manufacturing method of mat-typed bed soil for seeding comprises the following steps of: manufacturing a mixture of a dough state by mixing 4-12 weight% of pulp, 6-10 weight% of aqueous adhesives, 78-86 weight% of rice hulls, and water on the basis of the whole material weight; pre-drying the mixture; molding the pre-dried mixture with a mat type; and drying the molded mixture. The aqueous adhesives include starch adhesives and polyvinyl alcohol adhesives.

Description

MAT-TYPE BED FOR RAISING SEEDING AND METHOD OF FABRICATING THE SAME}

 The present invention relates to a mat-like topsoil for seedlings and a method for manufacturing the same, and more particularly, the use of environmentally friendly and suitable raw materials for seedlings, while at the same time the water absorption is a disadvantage of the conventional mat-type topsoil, simulated lifting during seedlings, The present invention relates to a mat-like top soil for seedlings such as rice or grass, which has been improved in poor growth and poor root net formation, and a manufacturing method thereof.

Conventionally, rice seedlings were produced directly from the farm by mixing the fertilizer after harvesting soil from the mountain. However, such topsoil manufacturing has a heavy disadvantage because it requires a lot of manpower and labor time and mainly contains soil. On the other hand, a technology for producing powdered clay by appropriately mixing cocopit and peat moss has been developed, which reduces labor costs and labor time required for the production of powdered clay, and the growth of seedlings is uniform. It is easy to grow healthy mosquitoes. However, the powdery soil still needs to be contained evenly in the seedling box, so that the manpower, time and cost are required for the seedling work.

At present, the labor shortage is very serious due to the aging of rural population. There is an urgent need for more convenient and lighter agricultural materials. In particular, seedling work, which is the beginning of rice farming, takes a lot of work, and it is difficult to lighten due to the nature of the soil material. Thus, a variety of mat-like clays have been introduced that combine pulp, pit, pit moss, rice hulls, vermiculite and fertilizers.

However, pulp, which is used as an essential raw material of the conventional mat-like clay, is an organic material containing a lot of fiber, and easily decays and mold occurs in a moist nail. And pulp has the advantage that the fiber is loosened in the water during manufacture and mixed well with other materials such as vermiculite and rice husk, and the shape is maintained well after drying, but it does not easily loosen because it is strongly entangled between the fibers once dried. The entangled fiber not only prevents the absorption of moisture from the soil when sowing, but also has the disadvantage that strong entanglement between the fibers prevents rooting and prevents the roots from falling down when the rice seed is rooted. .

The next most commonly used raw materials, such as pit and pit moss, are made of porous fibers with quite a few pores. These voids provide both water retention and binding power to retain the same nutrients and moisture as fertilizers. However, in the case of the porous pit or pit moss, when the moisture is 30% or more, the moisture in the void attracts water with strong cohesive force, but when the drying proceeds and the moisture drops below 30%, air enters the air instead of the moisture. The air in these voids acts to repel moisture. Therefore, when the moisture is supplied to the soil after it is dried, the moisture is not absorbed into the soil and stays only on the surface, which causes many problems in the seeding work. In addition, compression molding mats made of only organic materials such as pits and pit moss have problems of being easily broken or broken due to their weak strength.

Adhesives such as starch may be used to solve the problem of brittle or broken organic materials such as pit and pit moss. However, starch has the disadvantage of easily growing mold as it is a nutrient source of microorganisms in soil, and it is difficult to maintain shape and maintain proper strength in small amount, and when using a large amount, it takes a long time to dry and blocks oxygen supply to the soil. There is a problem that prevents the growth of mock.

   Due to these disadvantages, many mat-like soils that have come out up to now have a lot of difficulties in commercialization.

The present invention is to solve the problems of the existing mat-like top soil, the problem to be solved by the present invention is light, not easily broken or broken, fast water absorption even after molding, seedlings that can prevent the lifting of the simulation It is to provide a mat-like clay for the production and its manufacturing method.

Another problem to be solved by the present invention is to provide a mat-like soil for seedlings and a method of manufacturing the same that can alleviate damage or decay by microorganisms such as mold, insects, and the like.

Another problem to be solved by the present invention is to provide a mat-like topsoil for seedlings safer for the human body or the environment and a method of manufacturing the same.

Another problem to be solved by the present invention is to provide a seedling mat-like soil for seedlings, and a method for producing the same, which facilitates the seeding of roots, the formation of roots, and the growth of roots.

In order to solve the above problems, the mat-like topsoil for seedlings according to the present invention includes the expanded chaff, pulp and water-soluble adhesive. By adopting a water-soluble adhesive, it is possible to reduce the amount of pulp components and to increase the amount of dill chaff.

Dense chaff is made by compressing and expanding the chaff at high temperature and high pressure to make the tissue soft. Unlike general chaff, it has excellent water absorption, excellent water retention, and high binding power. In addition, pathogens, pests, and weed seeds introduced into the chaff are killed at high temperature and high pressure during the manufacturing process of the expanded chaff and sterilized. The swollen rice hull is excellent in water-retaining bobbin power, the greater the amount of ingredients, the more the amount of ingredients is limited by the amount of ingredients added for maintaining the shape and other purposes. The amount of components of the expanded chaff may be in the range of about 78 to 90% by weight relative to the total weight, preferably in the range of 78 to 86% by weight. If it is less than 78% by weight, the amount of pulp or water-soluble adhesive is increased to cause a simulated lifting phenomenon and the oxygen supply is blocked, which may interfere with the growth of seeds. In addition, if it is 90 weight% or more, it is difficult to maintain a molded form. On the other hand, when an additive such as a fertilizer or an acidity regulator is added, the amount of the component is reduced.

In the present invention, the expanded chaff exceeds 75% by weight of the weight of the mat-like soil for seedlings. Therefore, it is possible to provide a mat-like top soil for the seedlings excellent in water retention and bobbin power.

Pulp utilizes the waste paper fibers that are readily available around us, such as waste paper from the manufacture of toilet paper, which is commonly used in daily life, cardboard pieces from cardboard boxes, newspapers, and other waste paper. In particular, the use of waste paper from the production of toilet paper makes it easy to obtain fiber during the production of soil, and is easy to process. The fiber is most suitable for maintaining the shape of soil by tangling with the expanded chaff, which is a light material. On the other hand, the pulp is preferably 4 to 12% by weight of the total weight, if less than 4% by weight, it is difficult to maintain the form of the mat-like topsoil, when it exceeds 12% by weight, the seeds, such as by pulp fibers entangled Interferes with the rooting of the mock, causing uplifting.

Water-soluble adhesives are used to maintain the molded form of the topsoil and to strengthen the strength. The water-soluble adhesive is preferably 6 to 10% by weight based on the total weight, when less than 6% by weight, it is difficult to maintain the shape of the topsoil, and when it exceeds 10% by weight, oxygen is reduced by reducing the voids in the mat-like topsoil. Blocking penetration into mat-like soils prevents mock growth. Moreover, when it exceeds 10% by weight, it is difficult to maintain the molded form by easily reacting with moisture in the air.

The water-soluble adhesive may be used alone or mixed with a starch adhesive, a soybean adhesive, a casein adhesive, a polyvinyl alcohol adhesive, a polyvinyl acetal adhesive, a vinyl acetate adhesive. In the case of starch adhesive or soybean adhesive, the adhesive extracted from the plant can be used as a nutrient source of insects or microorganisms, and when used alone, it can reduce the shelf life of the mat-like soil. Therefore, in the case of adhesives extracted from plants, it is preferable to use them in combination with chemically prepared adhesives such as polyvinyl alcohol-based, polyvinyl acetal-based, and vinyl acetate adhesives. Polyvinyl alcohol is most preferred as the water-soluble adhesive. Polyvinyl alcohol (PVAL) is colorless and transparent, harmless to human body, and has high adhesiveness and thermoplasticity. It is a material that is extremely harmful to the human body so that it can be used in cosmetics and medicines. When polyvinyl alcohol is dissolved in water, it is decomposed by some microorganisms, and the aqueous solution is decomposed into water and carbon dioxide by the sludge treatment. Therefore, polyvinyl alcohol is suitable for maintaining the shape and strength of the mat-like soil as a safe and environmentally friendly adhesive.

According to the present invention, by using a water-soluble adhesive that can be dissolved as water without using an organic solvent, it is safer to the human body or the environment. In addition, by using a polyvinyl alcohol adhesive, it is possible to reduce damage during storage by microorganisms such as mold, insects, and the like. In addition, by using the water-soluble adhesive and the pulp together, the amount of the water-soluble adhesive and the pulp can be drastically reduced, thereby facilitating water absorption and rooting while maintaining appropriate adhesion and strength between the mixtures.

On the other hand, fertilizers and / or acidity regulators may be added for seedlings.

Fertilizers do not have a fixed amount supplied to young seedlings in seedlings, but lack of fertilizers can lead to nasal phenomenon. In addition, excessively high amounts of electrical conductivity (EC) are undesirable. Therefore, the amount of fertilizer is preferably 1 to ₂ g of nitrogen (N), _{4 to 5} g of phosphoric acid (P ₂ O ₅ ), 3 to ₄ g of garlic (K ₂ O) per conventional seedling box, and the electrical conductivity (EC) is about It is preferable to add in the range which does not exceed 2dS / m. The fertilizer may be sprayed on the seedling mat-like soil in the seedling box. Alternatively, the mat-like soil for seedlings according to the present invention may also contain fertilizer. In this case, a separate spraying of fertilizer can be omitted, which can cut the manpower and time. At this time, the fertilizer may be added in the range of 2 to 6% by weight based on the total weight of the mat-like soil for seedlings. Within this range, the conductivity can be adjusted not to exceed about 2dS / m while supplying the nutrients needed for seedlings.

On the other hand, the acidity of the top soil suitable for seedling is in the range of pH 4.4 to 5.5. An acidity regulator may be added to adjust the acidity of the seedling mat top soil. As the acidity regulator, for example, citric acid, sulfuric acid or sulfur may be used. The acidity regulator may also be added after putting the mat-like soil in the seedling box, the mat-like soil for seedlings according to the present invention may include an acidity regulator. At this time, the acidity regulator may be added in the range of 0.3 to 4% by weight relative to the total weight of the soil to adjust the acidity of the soil in the above range.

According to the present invention, the method for preparing seedling mat-like clay is performed by mixing pulp, water-soluble adhesive and expanded chaff with water to form a mixture in a dough state, pre-drying the mixture, and molding the pre-dried mixture into a mat shape. And drying the shaped mixture. The pulp may be mixed with 4-12 wt%, the water-soluble adhesive 6-10 wt%, and the expanded chaff 78-86 wt% based on the total weight of the raw material.

In addition, the step of making the mixture of the dough state may include the step of mixing the pulp and the water-soluble adhesive with water to make a preliminary mixture and the step of mixing the expanded chaff to the preliminary mixture.

By mixing the pulp, the water-soluble adhesive and water first, the fibers of the pulp can be evenly dispersed.

On the other hand, about 200-400% of the total raw material weight, for example 300% by weight of water may be used to make the mixture in the dough state. When there is little water, it is difficult to distribute a pulp evenly, and when too much water, it is difficult to dry.

On the other hand, in the step of making the mixture of the dough state, 2 to 6% by weight of fertilizer and 0.3 to 4% by weight of acidity regulator can be mixed. The fertilizer and acidity regulator may be mixed together when the pulp and water soluble adhesive are mixed with water. Preferably, the production method may further comprise the step of aging the mixture of the dough state, before the step of pre-drying the mixture. By the aging step, the mixed raw materials such as fertilizer can be sufficiently adsorbed to the swollen rice husk. At this time, the mixture of the kneaded state may be aged for 8 to 12 hours, in this range, raw materials such as fertilizer is sufficiently adsorbed to the swollen rice husk.

On the other hand, the pre-drying step is performed so that the moisture content of the mixture of the dough state is 40 to 50%.

The process of compacting the mixture in the forming step may be omitted. The compression process is generally necessary for maintaining the shape and strength of the mat-like soil, but the densities between tissues due to the compression are increased, thereby preventing the absorption of the mat-like soil and the rooting of rice seed. In addition, the compressed mat-like soil is expanded by water when absorbed. However, in the present invention, by using the pulp and the water-soluble adhesive to maintain the form of the mat-like top soil, it is possible to omit a separate compression process, thereby more smoothly absorbing the top soil moisture and rooting of rice seed, and also Excessive expansion due to water absorption can be suppressed.

On the other hand, the mat-like soil for seedlings may be molded to a size slightly larger than the size of the seedling box in consideration of shrinkage during drying. Since the size of the seedling box is usually 575 to 582 x 276 to 278 mm 2, the mat-like soil may be produced at about 587 × 278 mm 2 at the forming step. In this case, the mat-like topsoil is about 580 × 276 mm 2 by shrinkage due to drying. The thickness may be molded to about 8-10 mm.

The molded mat top soil may be dried within 10 seconds by applying heat of about 100 ~ 120 ℃. The drying may be performed using a hot air fan or the like.

The mat type top soil for seedlings prepared as described above is placed in a seedling box, sprayed with water, and sown after rice seeding can finish the seeding work. In the case of the existing powder topsoil, it is necessary to put the seedlings in the seedling box and spread the tops of the boxes evenly. However, the mating tops for seedlings according to the present invention are omitted evenly, and the batch work is possible by putting them in the seedlings box. . Compared to conventional powdery soils of about 2-3 kg per box, mat-like soils are light weight of 250g and can be easily sown in rural areas where there is a lack of work due to aging.

Mat-like topsoil for seedlings according to the present invention not only prevents the loss of fertilizers mixed in the manufacturing process of the expanded chaff excellent in water-retaining power, but also has numerous voids in the topsoil itself to easily absorb moisture and sowing seed seeds. After rooting is good, growth of rice and net formation of root are good.

In the conventional mat-like soil, rooting was prevented by the pulp fibers in waste paper by using a large amount of pulp, that is, waste paper, but the mat-like clay according to the present invention minimizes the amount of pulp fibers, thereby minimizing the root of rice. Smooth down.

In addition, it does not use vegetable fibers, such as peat moss, which are widely used in the existing mat-like soil, and has excellent characteristics of absorbing moisture after drying. In particular, most vegetable fiber raw materials, such as peat moss and pit, depend entirely on imports, but the expanded chaff used in the mat-type topsoil of the present invention is manufactured as a by-product from milling, etc., and pulp fiber uses waste from the paper industry. As a result, supply and demand of raw materials is smooth, inexpensive, and all raw materials are produced domestically. Therefore, the raw material price can be reduced to reduce the production cost, it is possible to manufacture environmentally friendly mat-like clay.

According to the present invention, it is possible to reduce the amount of vegetable fiber, such as a large amount of pulp fiber, peat moss, and pit which are essential raw materials in the existing mat-like soil. Therefore, the existing mat-like topsoil does not have good water absorption and rooting, so it is necessary to drill holes in the mat-like topsoil, but in the present invention, the water absorption and rooting are good because of the numerous pores in the mat-like topsoil. none. In addition, the existing mat-like soil is used to increase the water absorption, but according to the present invention, because the excellent absorption of moisture in the mat-like soil without a surfactant can minimize the use of chemical raw materials and at the same time reduce the manufacturing cost.

In addition, when using the existing mat-like top soil, the lifting phenomenon occurs in the seedlings, a large amount of cover is required to prevent this lifting phenomenon. When the amount of covering is increased, the weight reduction, which is an advantage of the matte type soil, is lost. However, according to the present invention, since the bonding force between the expanded chaff in the mat-like soil after water absorption is easily extinguished, when the rice seed is rooted, the rooting is smooth and the lifting phenomenon does not occur. As a result, unnecessary work of covering soil or watering again is not generated when lifting occurs after sowing.

In addition, according to the present invention, it is possible to improve the inconvenience of the use of powdered clay, which currently occupies most of the mat type soil for domestic seedling raising, and it is possible to raise seedlings in the same growth state as seeding with powdered clay, It can replace powdery topsoil.

Hereinafter will be described in detail an embodiment of a method for producing a mat type clay soil for seedling according to the present invention.

First, a premix is prepared by mixing 4-12% by weight of pulp, 6-10% by weight of water-soluble adhesive, 2-6% by weight of fertilizer, and 0.3-4% by weight of acidity regulator with about 300% by weight of water of the total raw material. At this time, the pulp is uniformly dispersed, and the water-soluble adhesive is uniformly dissolved in water. Then, 78-86 wt% of swollen rice hulls is mixed with the mixture to form a mixture in a dough state.

By mixing the pulp and water-soluble adhesive in advance with water and then mixing the swollen rice husk afterwards, it is easy to produce a dough mixture in which the pulp's fibrous and water-soluble adhesive are evenly dispersed.

Pulp uses the waste paper fibers that are readily available around us, such as waste paper from the manufacturing facilities that produce tissues commonly used in daily life, cardboard pieces from cardboard boxes, newspapers, and other waste paper. In particular, the use of waste paper from the production of waste paper makes it easy to obtain fiber during the production of soil, and is easy to process, and it is suitable for maintaining the shape of soil by tangling with the expanded chaff, which is a light material.

The water-soluble adhesive may be used alone or in combination with a starch adhesive, a soybean adhesive, a casein adhesive, a polyvinyl alcohol adhesive, a polyvinyl acetal adhesive, a vinyl acetate adhesive. In the case of starch adhesive or soybean adhesive, since the adhesive extracted from the plant can be used as a nutrient source of insects or microorganisms, when used alone may reduce the shelf life of the mat-like soil. Therefore, in the case of adhesives extracted from plants, it is preferable to use them in combination with chemically prepared adhesives such as polyvinyl alcohol-based, polyvinyl acetal-based, and vinyl acetate adhesives. As the water-soluble adhesive, a polyvinyl alcohol adhesive may be most preferably used in consideration of adhesiveness and environmental problems.

Thereafter, the mixture of the dough state is aged for about 8 to 12 hours. By the above aging step, the mixed raw materials such as fertilizer are sufficiently adsorbed on the expanded chaff.

Subsequently, the mixture is pre-dried such that the moisture content of the mixture in the kneaded state becomes 40 to 50% relative to the amount of water used for the first time. When the water content is in the above range, the adhesion between the expanded chaff is maintained while having fluidity suitable for molding. Preliminary drying may be performed in a natural state or by using a drying apparatus such as a hot air fan.

The pre-dried mixture is put into a mold and molded into a mat shape. In the forming step, the conventional mat-like soil is subjected to a compression process. However, in the embodiment of the present invention, the compression process can be omitted, thereby making it possible to more smoothly absorb water and rooting of rice seed in the soil, and also, when watering for seedling, excessive expansion due to water absorption. It can be suppressed.

On the other hand, the mat-like soil for seedlings is preferably molded to a size slightly larger than the size of the seedling box in consideration of shrinkage during drying. Since the size of the seedling box is usually 575 to 582 × 276 to 278 mm 2, the mat-like topsoil in the forming step can be produced, for example, about 587 × 278 mm 2. In this case, after drying, the mat-like topsoil has a size of about 580 × 276 mm 2 by shrinkage due to drying. The thickness may be molded to about 8-10 mm.

The molded mat top soil may be dried by applying a heat of about 100 ~ 120 ℃ using a hot air blower, and can be dried within 10 seconds. Thereby, mat type top soil for seedlings according to the present invention is completed.

In the present embodiment, the method for producing a mat top soil by adding a fertilizer and an acidity regulator is described, but the fertilizer or acidity regulator may be added after putting the mat top soil for seedlings in the seedling box.

Hereinafter, the seedling test of the Example of the seedling mat top soil which concerns on this invention, and the comparative example of the commercially available powdery top soil for water supply is demonstrated. Existing mat-like soil has been lifted and the water absorption is slow to show similar seedling properties to the powdery soil, the seedling properties of the mat-like soil for seedlings according to the present invention was compared with the powdery soil.

Here, the embodiment of the mat type clay for seedlings according to the present invention is 6% by weight of waste paper as pulp, 8% by weight of polyvinyl alcohol adhesive, 80% by weight of expanded chaff, fertilizer 4% by weight, 2% by weight of acidity regulator It was used as a raw material, it was prepared by mixing in about 300% by weight of water relative to the total raw material weight. A photograph of an example of a seedling mat-like soil prepared according to the present invention is shown in FIG. 1, and an enlarged photograph thereof is shown in FIG. 2.

[Raising Seedling Test]

1. Selected rice seeds to remove chaff and inoculated in 30 ℃ water for 72 hours.

2. The seeded rice seed was sprouted for 48 hours in a 30 ° C incubator.

3. The seedling mat tops prepared according to the present invention were laid in midwife seedling boxes, and commercially available powdered topsoil was placed in another midwife seedling box for 2.5 l and flattened.

4. 1.2 liters of fresh water was irrigated to the flattened soils and seeded about 200 g of rice seed. The treated soil was uniformly covered with 0.8 liters of powdered soils and the weight of each box was measured.

5. After weighing, 5 seedling boxes were stacked and covered with vinyl and left for 2 days while maintaining the temperature of 30 ~ 32 ℃.

6. Since rice seed is a cancer germinating seed, a light shielding film was installed until the buds were completely germinated.

Through the seedling test process as described above was compared to the comparative example of a commercial soil-like mat type soil clay soil example according to the present invention. The same amount of water was irrigated each day and the temperature in the hotbed was maintained at 30 ° C.

Experimental Example

   If the mat is not well formed, or if the soil has a lot of moisture, the transplanting work is difficult. In general varieties, mats are formed to be machined if the number of days of seedling is longer than 8 days, and the number of days of seedlings should be 15 days or more for medium-large varieties. Therefore, the growth survey was conducted four times from the 9th day of seedling to the 15th day of seedling, which is the number of possible seedlings of the young mother machine. After the final survey, the weight of the seedling box was measured and compared with that immediately after sowing.

Growth Characteristics on Day 9 of Seedlings division Super long (cm) Muscle length (cm) Under root building (g / 100 book) Mat formation degree Example 8.4 4.9 0.28 Good Comparative example 8.5 4.7 0.27 Good

Growth Characteristics on Day 11 of Seedlings division Super long (cm) Muscle length (cm) Under root building (g / 100 book) Mat formation degree Example 9.4 5.8 0.47 Good Comparative example 9.6 5.7 0.48 Good

Growth Characteristics on Day 13 of Seedlings division Super long (cm) Muscle length (cm) Under root building (g / 100 book) Mat formation degree Example 10.4 6.6 0.55 Good Comparative example 10.7 6.4 0.52 Good

Growth Characteristics on Day 15 of Seedlings division Super long (cm) Muscle length (cm) Under root building (g / 100 book) Mat formation degree Example 11.3 6.8 0.62 Good Comparative example 11.5 6.9 0.63 Good

As described above, the growth characteristics of the examples and the comparative examples on the seedlings 9, 11, 13, and 15 days did not show any difference among the plant height, root length, and root building. The mat formation degree also showed good mat formation in both Example and Comparative Example after 9 days of sowing. As a result of the above experiment, there was no difference in the growth of the mock seedlings grown with the mat-like soil for water seedlings and the growth of the mock seedlings with the commercially available powdery soils.

During the experiment, the simulated lifting phenomenon that appears in the existing mat type top soil during the seedling period in the mat type top soil for seedling raising did not occur.

Comparison of the weight of seedlings division Bed weight after seeding (kg / box) Seedling 15th day bed weight (kg / box) Example 2.39 2.27 Comparative example 4.14 3.57

As shown in Table 5, the weight of the mother plate was measured immediately after the seeding and after the final growth investigation (day 15 of the seedling). In particular, immediately after seeding, the weight of the bed was about 58% of that of the comparative example. At 15 days of seedling seedling weight, the Example was about 64% of the comparative example.

Meanwhile, the seedling seedling photograph and the rice root mat formation photograph according to the embodiment of the present invention on the 20th day of seedling are shown in FIGS. 3 and 4, respectively. Referring to Figures 3 and 4, it can be observed that by the seedlings using the mat-like top soil according to the embodiment of the present invention to rice seedlings in a state suitable for mechanical transfer, well formed root net.

As a result, the mat type top soil example of the present invention is lighter than the commercial powder type top soil comparative example, and the degree of simulation growth and mat formation during the seedling period did not show a difference between the example and the comparative example. Therefore, it is lighter than powdery soils, and has a more stable growth than existing mat-like soils having a high fiber content, and there is no mock lifting phenomenon during the seedling period. Therefore, the existing soils may be replaced with mat-like soils for seedlings of the present invention.

1 is a photograph of a mat-like top soil for seedlings according to an embodiment of the present invention.

Figure 2 is an enlarged photograph of the mat-like top soil for seedlings according to an embodiment of the present invention.

3 is a photograph of a rice seedling according to an embodiment of the present invention.

4 is a photograph of rice root mat formation according to an embodiment of the present invention.

Claims (13)

Bulgy chaff in the range of 78-86% by weight relative to the total weight; Pulp in the range of 4-12% by weight, based on the total weight; And Water soluble adhesives in the range of 6-10% by weight, The water-soluble adhesive is a mat type soil for seedlings containing a starch adhesive and a polyvinyl alcohol-based adhesive. delete delete delete The seedling mat type clay according to claim 1, further comprising 2 to 6% by weight of fertilizer. The seedling mat type clay according to claim 1, further comprising an acidity regulator, wherein the acidity is in the range of pH 4.4 to 5.5. The method according to claim 6, wherein the acidity regulator is seedling mat type soil in the range of 0.3 to 4% by weight. Mixing the pulp in the range of 4 to 12% by weight, the water-soluble adhesive in the range of 6 to 10% by weight, and the expanded chaff in the range of 78 to 86% by weight with water, to form a mixture of dough; Predrying the mixture; Molding the pre-dried mixture into a mat shape; And Drying the shaped mixture, The water-soluble adhesive is a mat-like soil production method for seedlings comprising a starch adhesive and a polyvinyl alcohol-based adhesive. delete The method of claim 8, wherein the step of making the mixture of dough state Mixing the pulp and a water soluble adhesive to form a preliminary mixture; And A method for producing seedling mat type clay comprising the step of mixing the expanded chaff to the preliminary mixture. The method of claim 8, wherein in the step of making the mixture of the dough state 2-6% by weight of fertilizer and 0.3-4% by weight acidity regulator are mixed together, Before the step of pre-drying the mixture, further comprising the step of aging the mixture of the dough state seedling mat type clay production method. The method of claim 8, wherein the preliminary drying is performed so that the water content of the mixture in the dough state is 40 to 50%. delete

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